Stratigraphic Name | Stratno |  Previous Name  |Previous Name Stratno| Replacement Name | Replacement Name Stratno |Is Current | Rank | Status | Category | Usage | Parent Name | Parent Stratno | Chemical Parent Name | Chemical Parent Stratno | Top Minimum Age Name | Top Minimum Age (Ma) | Top Minimum Age Error (Ma)| Top Minimum Age Method | Topstrat Age Event | Base Maximum Age Name | Base Maximum Age (Ma) | Base Maximum Age Error (Ma) | Base Maximum Age Method | Basestrat Age Event | Minimum Thickness (m) | Maximum Thickness (m) | Type Section State | Definition Card | First ref as on form | Def ref as on form | Reserved by | Resdate | Approved by | Approved date |General Comments | Lithology Description | Primary Lithology Group | Secondary Lithology Group | Tectonic Setting | Intrusive | Granite Type | Last Update
Aarons Pass Granite|27689|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pennsylvanian|320|||intrusion|Mississippian|322|||||||No|43476|23170||||||Biotite granite with pegmatite and granophyre|acid intrusive rock|||Y|I-type|17-JAN-23
Abbey Green Coal|28|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Apple Tree Flat Subgroup|504|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Bright to vestigial coal rich in carbonaceous shale.|organic rich sedimentary rock|||N||17-JAN-23
Abercorn Granite|32|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Tuglow Suite|31649|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|34481||||||Formerly grouped in the Abercorn Suite, now replaced by Tuglow Suite.|Pink to cream, massive, equigranular to medium-grained leucocratic biotite granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Abercrombie Formation|69898|Abercrombie beds|37|||Yes|Formation, beds|Formal|Variation of published name|Defined|Adaminaby Group|98|||Sandbian|||inferred, biostratigraphic correlation|deposition|Tremadocian|486.5|3.2|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|||NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For new GOULBURN 1:250 000 sheet (2006) - replacing Abercrombie beds of previous publications. Age based on conodonts and graptolites. Uncertainty indicated for maximum age. Includes: Nattery Chert, Peach Tree Chert, Mummel Chert and Willigam Sandstone Members. 486.5+/-3.2 Ma, maximum depositional age. In 2019, proposed to incorporate and supersede the Clements Formation and Pinnak Sandstone, but Pinnak Sandstone still in use in 2021 GSNSW seamless geology. Age based on conodonts and graptolites.|Brown and buff to grey thinly to thickly bedded fine- to coarse-grained mica-quartz (+/-feldspar) sandstone, interbedded with laminated siltstone and mudstone. Discrete chert-rich packages occur.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Aberdare Conglomerate|39|||||Yes|Formation, beds|Formal|Other new published name|Defined|Woogaroo Subgroup|20540|||Rhaetian||||deposition|Norian||||||380|QLD|No|44432|44510|||||Defined 1960, 1964. Ipswich.  In the Clarence-Moreton Basin. See also the informal term, Aberdare Conglomerate Stage.|Polymictic pebble to cobble conglomerate, quartzose sandstone, siltstone, thinly bedded carbonaceous shale.|siliciclastic sedimentary rock|||N||02-JUN-23
Aberfoyle River Porphyrite|48|Aberfoyle River Adamellite Porphyrite|47|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Llangothlin Suite|74008|Permian||||intrusion|Permian||||||||No|30911||||||Previously in the Uralla Suite, now the Llangothlin Suite/Uralla Supersuite (Blevin, Bultitude and Champion, 2007)|Porphyritic hornblende-biotite microgranite. Transitional I-S type granitoids|acid intrusive rock|||N|I-type|17-JAN-23
Aberglen Coal Member|80144|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Abernethy Lens|77434|||||Yes|Bed|Informal|Resvd name published|Mentioned|Kurri Kurri Conglomerate|9934|||Cisuralian|||||Cisuralian||||||||No|69683||Greenfield, J. (GSNSW)|14-JUN-12|||Of Kurri Kurri Conglomerate, Greta Coal Measures, Sydney Basin.|Jasperoid orthoconglomerate with a fine-grained matrix|siliciclastic sedimentary rock|||N||17-JAN-23
Abroi Granodiorite|63|Abroi Gneiss|62|||Yes|Formation, beds|Formal|Variation of published name|Described|||Rockvale Suite|73933|Cisuralian|290.5|16|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Pennsylvanian|292.6|2.5|isotopic, U/Pb-Pb/Pb ICP-MS|||||No|31806||||||Formerly in the Hillgrove Suite; then the Abroi Suite, of Hillgrove Supersuite.  Blevin, Bultitude & Champion, 2007, pers.comm. Used in GSNSW seamless geology dataset 2021 as part of Rockvale Suite, Hillgrove Supersuite.|Gneissic biotite granodiorite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite.|acid intrusive rock|||Y|S-type|17-JAN-23
Acacia Downs Siltstone|69|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Early Cambrian||||deposition|Early Cambrian||||||||No|43501|||||||Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Accommodation Creek Monzogranite|82282|Stanthorpe Monzogranite|38272|||Yes|Formation, beds|Formal|Other new published name|Described|||Sailor Jack Suite|73887|Lower Triassic|||inferred, intrusive relationship||Late Permian|||inferred, intrusive relationship|||||No|71628||||||Previously included in Stanthorpe Monzogranite. Not in GSQ Rock Units database.  May be in NSW only [Not in GSQ Rock Units database]. Age poorly constrained. GSNSW seamless geology 2023 shows this unit as Permian.|Pale grey to pale brownish-grey, medium- to coarse-grained, highly porphyritic biotite-hornblende monzogranite. Has undergone deformation and alteration.|acid intrusive rock|||Y|I-type|01-SEP-23
Ace Intrusive Complex|77|||||Yes|Group, Suite|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|48958||||||See also Ace Complex. Name not used since 1976.|||||Y||17-JAN-23
Acton Shale|90|Acton Shale Member|88|||Yes|Formation, beds|Formal|Other new published name|Defined|Bendoc Group|1474|||Upper Ordovician||||deposition|Upper Ordovician||||deposition|||ACT|No|43385|44970|||||Defined 1958. Reduced to Member of the Pittman Formation for many years, but younger graptolite fossils recognised. Listed as a member of the Pittman Formation in GSNSW seamless geology 2021, although proposed to be included in  the Warbisco Shale of the Bendoc Group in 2018.||siliciclastic sedimentary rock|||N||17-JAN-23
Adaminaby Group|98|Adaminaby beds|99|||Yes|Group, Suite|Formal|Variation of published name|Defined|Lachlan Supergroup|82541|||Upper Ordovician|||inferred|deposition|Lower Ordovician|||inferred|||1500||No|42294|23170|||||See also defined Adaminaby beds (intended as a Redefinition).  Also supersedes Abercrombie beds. Equivalent to Pinnak Sandstone. Type Section: Refer to Glen et al. 1990. Similar in age and lithology (quartz sandstone turbidite sequences) to Wagga Group but separated by the Gilmore Fault Zone. Wagga Group has been incorporated into Adaminaby Group in 2021. Age based on conodonts and graptolites.|Turbiditic sequence of sandstone, mudstone, shale, carbonaceous shale, greywacke; chert, quartzite, phyllite, slate.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock|forearc|N||27-SEP-23
Adamstown Subgroup|107|Adamstown Sub-Group|106|||Yes|Subgroup|Formal|Other new published name|Described|Newcastle Coal Measures|27861|||Late Permian|||||Late Permian||||||||No|39609||||||Of McKenzie and Britten (1969). Replaced by Adamstown Formation. Apparently current again (2015): RefID 70647.|Conglomerate, tuff, sandstone, siltstone, claystone, black coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Adderley Formation|23323|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Crudine Group|4970|||Lower Devonian||||eruption|Late Silurian||||||900||No|42712||Stuart-Smith P.|01-JUN-93|||Bathurst 1:250 000 sheet area, DESC in 94/27645. Intruded by the Tarana Granite.|Upward fining sequence of felsic volcaniclastic conglomerate and sandstone.|acid volcanic rock|||N||17-JAN-23
Adelargo Basalt Member|41273|Adelargo Member|31840|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Warrumba Volcanics|32474|||Middle Devonian||||eruption|Middle Devonian||||||||No|50628||||||Original name shortened to Adelargo Basalt, then original name restored.|Basalt, trachyandesite, trachyte|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
Adelong Norite|134|South Adelong Gabbro""|17109|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Avenall Basic Intrusive Complex|23347|||Late Silurian||||intrusion|Early Silurian||||||||No|60086|||||||Medium to coarse-grained hornblende diorite, metagabbro; very minor acid veins|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Agnes Banks Sand|28319|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pleistocene||||deposition|Pleistocene|||||1|8|NSW|Yes|31056|42925|Gobert V.||Hawke, J.|27-AUG-77||Mottled orange-grey, clayey quartz sand grading upwards into buff and cream coloured, fine to medium grained sand with minor clay. Rare crossbedding and occasional pebbles.|regolith|||N||17-JAN-23
Agnes Greywacke|26339|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Coffs Harbour Association|38341|||Pennsylvanian||||deposition|Pennsylvanian||||||||No|31694|||||||Lithic wacke, minor slate, rare chert, metabasalt, metamorphosed felsic volcanics|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Airly Volcanics|83207|Airly Province Volcanics|69593|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Rupelian|30.7|.4|isotopic, K/Ar||Thanetian|57.3|.8|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. This is a composite age range based on ~20 K-Ar analysis by multiple workers. Errors are typically sub >1 Ma and commonly fall between 0.8 and 0.4 Ma.|OIB-like alkaline basalt lavas, plugs and diatremes.|basic volcanic rock|||N||17-JAN-23
Akuna Mudstone|25757|Akuna Siltstone|32176|||Yes|Formation, beds|Formal|Other new published name|Defined|Bendoc Group|1474|||Hirnantian|||inferred, biostratigraphic correlation|deposition|Katian|||inferred, biostratigraphic correlation|||300|VIC|No|41570|42647|||||Murrindal area. Equivalent to the Gungoandra Siltstone. In faulted contact with Yalmy Group above, and Sunlight Creek Formation and Pinnak Sandstone. Geological Survey of Victoria map code: Oba. Proposed to be reassigned from the Bendoc Group to Margules Group in 2018, but GSNSW Seamless 2021 still shows this unit as part of the Bendoc Group. Age based on graptolites.|Mudstone - laminated, well-bedded; siliceous siltstone, thin sandstone beds: purple, khaki and green-grey.|siliciclastic sedimentary rock|||N||17-JAN-23
Alandoon Chert|210|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Girilambone Group|27158|||Darriwilian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||||No|42566|||||||Chert|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Albert Basalt|221|||||Yes|Formation, beds|Formal|Variation of published name|Described|Focal Peak Volcanics|83654|||Miocene|22.4|.7|isotopic, K/Ar|eruption|Chattian|23.3|.7|isotopic, K/Ar|eruption||||No|44784||||||Previously said to be of Lamington Volcanics, but they underlie this. Said to be of Focal Peak Group in 2007, of Focal Peak Volcanic Complex in 2021. Age range from GSNSW seamless geology 2021.|Olivine basalt, extrusive rhyolite, sediments between basalt flows |basic volcanic rock|||N||17-JAN-23
Alberta Conglomerate|29276|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Teamsters Creek Subgroup|17916|||Ediacaran||||deposition|Ediacaran|593|32||||300||No|30261|||||||Diamictite, siltstone, sandstone, some conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Albury Gneiss|234|Albury gneiss|236|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Ordovician|||||Ordovician||||||||No|45003|||||||Gneiss|metamorphic rock|||N||17-JAN-23
Alcheringa Coal|237|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Horseshoe Creek Subgroup|8506|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||A distinctive coal-rich sequence with tuffaceous claystone beds.|organic rich sedimentary rock|||N||17-JAN-23
Alkaline Volcanics|34207|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoproterozoic||||eruption|Neoproterozoic||||||||No|22671||||||Correlated with the Mt Arrowsmith Volcanics|Volcanics|igneous rock|||N||17-JAN-23
Allambie Woolshed Granite|73519|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian||||intrusion|Silurian|423.1|2.4||||||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet.|Grey, quartz-orthoclase-biotite granitoid, grainsize typically 3-4 mm; with zircon, apatite, monazite and garnet.|acid intrusive rock|||Y||17-JAN-23
Allandale Formation|279|Allandale formation|287|||Yes|Formation, beds|Formal|Variation of published name|Described|Dalwood Group|28493|||Artinskian||||deposition|Sakmarian|||inferred, biostratigraphic correlation|||300||No|43491||||||Hunter Coalfield. See also Lexicon. SI56-1/Singleton,Cessnock. Not clear if this IS a unit in Qld as well as NSW?  but the name should not be used for rocks in Qld as Allandale Arfvedsonite Granite has priority in that State. See also Allendale Formation (probably misspelt). Numerical age: 290-286Ma from 2004 reference.|Conglomerate, lithic sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Allans Creek Formation|27315|||||Yes|Formation, beds|Formal|Other new published name|Described|Illawarra Coal Measures|27802|||Lopingian||||deposition|Lopingian||||||||No|34060||||||May have been superseded by Allans Creek Sandstone?|||||N||17-JAN-23
Allara Shale Member|23327|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Arkarula Formation|30027|||Permian||||deposition|Permian||||deposition||||No|37094||R.A.Britten|12-FEB-74|||Used in GSNSW seamless geology dataset 2021. RefID 43194 (1993) states it is to be a redefined Member within an (elevated) Arkarula Formation. Not mentioned in Geology of New South Wales(1998). Late Permian.|Shale|fine grained siliciclastic rock|||N||27-APR-23
Allaru Mudstone|291|Allaru Member|290|||Yes|Formation, beds|Formal|Variation of published name|Defined|Wilgunya Subgroup|20031|||Albian||||deposition|Albian|||||87|700|QLD|No|33642|63979|||||See also Allaru Formation. Previously considered laterally equivalent to Oodnadatta Formation, but not by Roach (2015). The name Allaru Mudstone is only used when Toolebuc Formation is present, see Strzelecki 1:250k explan notes (1995). Part of Wilgunyah Subgroup, Rolling Downs Gp, although some authors attribute it to the Maree Subgroup of the Neales River Group. See also Alluru Mudstone (a misspelling). Type Section type advised by Paul Blake 30-JUN-2023.|Primarily blue-grey mudstone (partly pyritic) and interbedded calcareous siltstone, cone-in-cone limestone and lesser sandstone.|fine grained siliciclastic rock|carbonate sedimentary rock|intracratonic|N||17-JUL-23
Allawa Ignimbrite Member|70446|Allawa Tuff Member|69436|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian|310|||||||No|62095|62095|||||In the Werrie block/ Tamworth Belt.  Age: ~310Ma.  Reserved as Allawa by J. Roberts (2002). Allawa Tuff Member preferred by GSNSW [May- 2011]|Beige unwelded ignimbrite; groundmass micropoikilitic.|acid volcanic rock|||N||02-JUN-23
Allendale Metasediments|23328|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Broken Hill Group|2617|||Statherian|||||Statherian|1691|3||||1000|NSW|No|38969|39662|B.P.J.Stevens|25-JAN-82|||Term not used in SA.  Not to be confused with the Allandale Formation nomenclature, or the misspelt Allendale Formation - which are Permian in age. Within the Willyama Supergroup and previously included in the Purnamoota Subgroup. Equivalent to Plumbago Formation in the Olary Domain.|Metasediments. Albitic psammite, pelite. Pelitic to psammitic metasedimentary composite gneiss, including garnet-bearing feldspathic composite gneiss, sporadic basic gneiss and quartz-gahnite rock. Calc-silicate bodies at base.|metasedimentary siliciclastic rock||continental rift|N|S-type|17-JAN-23
Alley Sandstone Member|26341|||||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Biddabirra Formation|28129|||Lochkovian||||deposition|Lochkovian|424|10||||350|NSW|No|38292|43032|||||A sample from the Cobar 1:100k sheet GR 384858 6518889, constrained in age by the brachiopod Howellela jaqueti, was inferred to be Pragian in age during the mapping program but is now regarded as Lochkovian (Early Devonian) in age (Pogson & Glen 2008, based on Sherwin 1995).[from RefID 69002 (2010)]|Thick-bedded sandstone marker unit.|siliciclastic sedimentary rock|||N||04-AUG-23
Alloway Bank Conglomerate Member|21114|Alloway Bank Conglomerate|34442|||Yes|Member, phase|Reserved|Reserved|Reserved|Drik-Drik Formation|27392|||Devonian||||deposition|Devonian||||||||No|||P.Cawood|03-OCT-78|||Reservation revived by GSNSW 5-MAY-2011.|Conglomerate|sedimentary rock|||N||17-JAN-23
Allyn River Member|23329|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||1000||No|40883||D.Lindley|14-JUN-83|||New member of the Flagstaff Formation.  Thickness in type section: 740m.|Green to brown, medium- thickly bedded lithic sandstone with turbiditic sedimentary structures and interbeds of brown thinly bedded mudstone|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Alma Granite Gneiss|317|Alma Gneiss|24654|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Silver City Suite|70121|Statherian|1704|3||intrusion|Statherian|1704|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|29864||Stevens, B. (NSWGS)|01-MAR-06|||Originally superseded by Alma Gneiss, but now redefined [where?] as Alma Granite Gneiss. This name preferred by GSNSW in 2012. Alma Gneiss used prior to that. Magmatic age: 1704+/-3Ma. Metamorphic age 1610+/-9Ma. U/Pb SHRIMP.|Mainly medium to coarse-grained quartzofeldspathic gneiss with abundant megacrysts. Can also be basic and have thin beds or bodies of leucocratic Na plagioclase-quartz rocks.|metamorphosed acid igneous rock||continental rift|Y|S-type|17-JAN-23
Alma Park Granite|81813|Mount Royal Granite|82129|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||Jindera Suite|31594|Gorstian|429.2|2.5|isotopic, U/Pb-Pb/Pb ion probe||Sheinwoodian|430.5|3.4||||||No|||Eastlake, M. (GSNSW)|21-JAN-20|||The name is derived from the locality of 'Alma Park', ca. 11 km NNE of Walbundrie, NSW. Alma Park lies within the western margin of the unit. Not to be confused with the Alma Granite Gneiss (which is Statherian and of the Curnamona Province). Alma Park Granite forms a body ~24 x 12 km2 nestled between the Jindera Granite and the Wallandoon Ignimbrite. Bull (2017; GSNSW Report GS2017/0149) described the Alma Park Granite (there informally termed the Mt Royal granite).  Published in GSNSW seamless geology.|Fine- to medium-grained biotite-muscovite-granite with or without cordierite and tourmaline. It commonly features pegmatite and aplite dykes or veins. Incipient greisenisation is indicated from secondary interstitial quartz and muscovite.|acid intrusive rock|||Y||29-SEP-23
Alnwick Formation|21118|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Four Mile Creek Subgroup|28559|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Grey fine-grained fels-lithic sandstone - sporadically laminated with mudstone or carbonaceous shale; dark grey mudstone, brown claystone, coal - dull and bright laminations and bands (sporadic calcite-healed joints), coaly shale|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Alstonville basalt|83652|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Oligocene|27.6||isotopic, K/Ar||Eocene|41.4||isotopic, K/Ar|||||No|73581||||||Well exposed at Lennox Heads.where it exhibits columnar joints. Is up to 150 m thick and probably forms the extensive aquifers found in this region. K?Ar age dates provide an Eocene?Oligocene age range of 41.4?27.6 Ma. largely consists of high Mg sodic trachybasaltic magmas that fractionated in closed magma chambers. from Simpson and Sutherland (2022)GSNSW Quarterly Notes 156.|Largely consists of high Mg sodic trachybasaltic magmas.|basic volcanic rock|||N||29-MAR-23
Althorpe Formation|335|Althorpe Claystone Member|334|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian||||||1.39|NSW|No|40805|40805||||||Claystone and tuff layers.|fine grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Alton Limestone Member|23331|Jericho Limestone""|8924|||Yes|Member, phase|Formal|Resvd name published|Described|Bells Creek Volcanics|24709|||Lower Devonian||||deposition|Late Silurian||||||||No|42712||Stuart-Smith P.|01-JUN-93|||BATHURST 1:250 000 sheet area, DESC in 94/27645. Formerly known as Jericho Limestone and Cow Quarries limestone.|Thickly bedded iohite, coarse grained fossilerous marble containing rare talc schist bands.|carbonate sedimentary rock|||N||17-JAN-23
Alum Mountain Volcanics|342|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Kungurian|274.1|3.4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Kungurian|||inferred|eruption||2040|NSW|No|43432|36057|||||Contains basalts previously mapped with the Dalwood Group.|Flows of albitised alkaline olivine basalt and massive to flow banded rhyolite with interbedded pebble conglomerate, sandstone, mudstone, tuff, breccia and coal seams at the base.|basic volcanic rock|acid volcanic rock|extensional continental backarc|N||17-JAN-23
Alum Rock Conglomerate|344|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Cisuralian|291.3|2.9|isotopic, U/Pb-Pb/Pb ion probe|deposition|Cisuralian|293.7|3.4|isotopic, U/Pb-Pb/Pb ion probe||||QLD|No|44543|22601|||||Tectonic unit: Southern New England Orogen, Barnard Basin, slivers in Texas Block [refid: 65114]. Silver Spur Subprovince, Woolomin Province (Geology of Queensland 2013)|Conglomerate, locally pebbly sandstone, and siltstone; local rhyolitic to dacitic breccias, tuff and lava; minor calcareous arenite and limestone.|medium-coarse grained siliciclastic rock|acid volcanic rock||N||02-JUN-23
Ambone Volcanics|23332|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Pragian||||eruption|Lochkovian||||||280|NSW|No|37772|41126|E.Scheibner|23-JUL-80||||Volcanics|igneous rock|||N||17-JAN-23
Amboyne Granodiorite|357|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Bullenbalong Suite|2895|Wenlock|427|3|isotopic, K/Ar|intrusion|Llandovery|430|3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|60078|41905|A.White|01-AUG-77|||See also the informal Amboyne Granite. Murrindal area. Age: 427+/-3Ma. Age and lithology updated from GSV data (HG, Dec 2005). GSV code: G71. Now [2011] includes former Deddick Granodiorite of Chappell et al. (1991).|S-type, cordierite-garnet-biotite granodiorite.|acid intrusive rock|||Y|S-type|17-JAN-23
American Creek Coal Member|24656|Bimlow Seam|1670|||Yes|Member, phase|Formal|Unknown or process pending|Described|Allans Creek Formation|27315|||Late Permian||||deposition|Late Permian||||||||No|29900||||||see also American Creek Coal.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Amiens Leucomonzogranite|82283|||||Yes|Formation, beds|Formal|Other new published name|Described|||Amiens Suite|82284|Middle Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||part of Stanthorpe Supersuite.|Pale pink to pale pinkish-grey, medium-grained, moderately porphyritic, leucocratic biotite (rarely amphibole-bearing) monzogranite to syenogranite; locally fine-grained and highly porphyritic. I-type.|acid intrusive rock|||Y|I-type|23-AUG-23
Amiens Suite|82284|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Middle Triassic|||inferred||Lower Triassic|||inferred|||||No||||||||||||Y||17-JAN-23
Amphitheatre Group|381|Amphitheatre Beds|374|||Yes|Group, Suite|Formal|Variation of published name|Redefined|Cobar Supergroup|27673|||Lochkovian||||deposition|Late Silurian|||||||NSW|No|43491|43774|||||Defined 1987. Redefined 1994. See also definition card for Amphitheatre Formation. See also Lexicon. Referred to in Cobar Basin. Informally divided into Upper and Lower Amphitheatre Group, seperated by the Shume Formation. Contains Lochkovian trilobites and brachiopods. Hosts an unnamed granite dated at c.423 Ma.|Thin- to medium-bedded sandstone and thinly lamainated siltstone, thin limestone beds and minor felsic volcanics; overlain by thin- to medium-bedded sandstone and siltstone overlain by coarse-grained beds.|siliciclastic sedimentary rock|||N||04-AUG-23
Amphitheatre Group, lower|379|||||Yes|Subgroup|Informal|Variation of published name|Described|Amphitheatre Group|381|||Lochkovian|||inferred|deposition|Pridoli|||inferred||1500|7000||No|60520||||||Refers to lower section only of the Amphitheatre Group.  Broadly correlates in age, but different facies to CSA Siltstone. See also Amphitheatre Group, Lower (RDEF). Used in GSNSW seamless geology dataset 2021.  Represents syn-rift phase of sedimentation. Deposited as deep water turbidites.|Thin to medium bedded, massive or graded, parallel-laminated and ripple cross-laminated, poorly sorted, fine to medium-grained, quartzose to quartz-lithic sandstone interbedded with siltstone and mudstone. Minor tuff, ?lava.|siliciclastic sedimentary rock|||N||04-AUG-23
Amphitheatre Group, upper|39242|Elouera Beds|6110|||Yes|Subgroup|Informal|Variation of published name|Fully described|Amphitheatre Group|381|||Pragian|||inferred|deposition|Lochkovian|427|29|inferred|||4000||No|60520||||||Refers to upper section only of the Amphitheatre Group. See also Amphitheatre Group, Upper (RDEF).Used in GSNSW seamless geology dataset 2021. Thin- to medium bedded turbidite sequence of sandstone, siltstone and mudstone. Sandstones are typically quartz-rich with well-developed Bouma divisions.  Represents sag phase of sedimentation.|Poorly outcropping mica and feldspar rich sandstone and siltstone.|siliciclastic sedimentary rock|||N||04-AUG-23
Andersons Flat beds|427|Andersons Flat Beds|425|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Manning Group|11186|||Kungurian||||deposition|Asselian||||||||No|41348|||||||Lithofeldspathic sandstone, conglomerate and mudstone|siliciclastic sedimentary rock|||N||02-SEP-23
Anembo Granodiorite|25684|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian|412.7|1.9|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|36413|40276|S.J.Richardson|27-FEB-75|Hawke, J.|20-FEB-79|Originally defined in Ref ID 36413 (1979).  See also the informal Anembo Granite.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Angullong Formation|27693|Angullong Tuff|455|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Upper Ordovician|443|||deposition|Katian|449|||||1050||No|29905|23214|||||Used in 1997 Bathurst 1:250 000 sheet. Intended to replace Angullong Tuff. Molong-Wellington Volcanic Belt. Also said to be Bolindian in age (Australian name for late Ordovician) in NSW Seamless although also gives 440Ma [Rb/Sr] best isotopic age [Llandovery]. Katian age derived from fossil conodonts. GSNSW seamless gives  describes this unit as 'Basaltic sandstone, thin- to medium-bedded calcareous siltstone.' This description is significantly different from the 1998 definition in the Bathurst 1:250k explanatory notes.|Primary andesite and volcaniclastic conglomerate, sandstone and siltstone; breccia. Rare allochthonous limestone blocks in the lower part.|siliciclastic sedimentary rock|||N||08-JUN-23
Angus Place Sandstone|24602|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian||||||15|NSW|Yes|38614|40806|C.Bembrick|19-JUN-80|Russell, T.|13-JUL-83|Western Coalfield of Sydney Basin. Synonym of Watts Sandstone. Formerly part of Charbon Sub-Group.|Quartz lithic-sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Annalee Pyroclastics|24660|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wandsworth Volcanic Group|29113|||Late Permian||||eruption|Cisuralian||||||45|NSW|No|34350|34350||||||Felsic pyroclastics, rhyolite, trachyte, minor rhyolitic tuffaceous sandstone.|acid volcanic rock|||N||23-AUG-23
Annandale Metadolerite|82392|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Lady Louise Suite|35889|Statherian|1683|5|isotopic, U/Pb-Pb/Pb ion probe||Statherian|||inferred|||||No|73512||||||Used in GSNSW seamless geology 2021.|Basic gneisses, includes intervening metasedimentary rocks. ?Dolerite.|foliated metamorphic rock|metasedimentary rock||Y||17-JAN-23
Anson Formation|29659|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mumbil Group|13411|||Early Silurian||||deposition|Early Silurian||||||1000||No|22679||Scott M. for Lachlan NGMA project.|30-AUG-95|||Northwest. Originally informally referred to as Licking Hole Limestone Member. Previously has been included in Barnby Hills Shale and Mullions Range Volcanics. Also formerly referred to as Clifton Grove Formation|Carbonaceous pyritic siltstone, felsic volcanics, volcanic sandstone, limestone|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Appin Formation|502|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Sydney Subgroup|17602|||Late Permian||||deposition|Late Permian||||||40||No|34060|||||||||||N||17-JAN-23
Apple Tree Flat Subgroup|504|Apple Tree Flat Sub-Group|503|||Yes|Subgroup|Formal|Unknown or process pending|Described|Wollombi Coal Measures|20362|||Late Permian|||||Late Permian||||||30||No|41010|||||||||||N||17-JAN-23
Apple Tree Gully Granodiorite|80764|Apple Tree Granodiorite|77393|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|||Apple Tree Gully Suite|82285|Lower Triassic|||inferred||Late Permian|252.3|2|inferred|||||No|71628||||||Outcrops ~ 26 km NNW of Emmaville, ~ 5 km south of the southern contact of the Mole Leucogranite (GR 399 500, 6 691 600; Glen Innes 1:100 000 Sheet). The intrusion is irregular in shape. Apple Tree Gully Granodiorite intruded the Emmaville Volcanics (Wandsworth Volcanic Group) and the Bondonga beds. It is overlain by Tertiary basalt (Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GSNSW Report 2017/0408). GSNSW Seamless 2023 show this unit as Early Triassic.|Quartz-poor granodiorite.|acid intrusive rock|||Y|I-type|21-AUG-23
Apple Tree Gully Suite|82285|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Boxwell Supersuite|69437|Late Permian|||inferred||Late Permian|||inferred|||||No||||||||||||Y||17-JAN-23
Appleogue Dacite Member|37907|Appleogue|30089|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Clifden Formation|4147|||Serpukhovian||||eruption|Serpukhovian|||||||NSW|Yes|24605|24605|Roberts, J.|27-FEB-96|Sutherland, F.L.|22-JAN-03|See also published definition as Appleogue Dacite (although this is clearly still of the Clifden Formation, so just an abbreviation rather than a deliberate name change) and the same article uses Appleogue Dacite Member throughout text, while Appleogue Dacite used in the definition in Appendix! Geological Province: Boomi Block.|Dark grey to black, hornblende dacite containing plagioclase, hornblende, altered biotite and opaque minerals. The groundmass is spherulitic to chloritic and zeolitic, and contains small fragments of pumice and possible shards.||||N||21-JUL-23
Applethorpe Monzogranite Phase|82287|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||||Middle Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||This subunit does not "technically" qualify as a Phase according to stratigraphic naming conventions.|Grey to pinkish grey, fine-grained, relatively biotite-rich, porphyritic biotite granite.|acid intrusive rock|||Y||17-JAN-23
Apsley River Complex|67896|||||Yes|Group, Suite|Informal|Variation of published name|Mentioned|||Bakers Creek Supersuite|75958|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Source: Interim NSWDMR 250k Jan 2001. See also Apsley River Diorite. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Mafic igneous complex; gabbro, diorite, granodiorite.|basic intrusive rock|acid intrusive rock||Y|I-type|17-JAN-23
Arable Tonalite|520|||||Yes|Formation, beds|Formal|Other new published name|Described|||Murrumbucka Suite|31611|Late Silurian||||intrusion|Late Silurian||||||||No|49705|||||||Tonalite|acid intrusive rock|||Y||17-JAN-23
Ararat Formation|24663|Ararat Sandstone|534|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Visean||||deposition|Tournaisian||||||800||No|44797|44244||||||Pebbly sandstone, oolitic and crinoidal limestone; coarse volcanolithic sandstone, mudstone; lenses of conglomerate.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Archerfield Sandstone|26350|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Wittingham Coal Measures|20334|||Late Permian||||deposition|Late Permian||||||30||No|29942||||||Stated to be within the Vane Subgroup and the Jerrys Plain Subgroup (Wittingham Coal Measures) - which needs to be determined - either base oif the latter or top of the former?|Well-sorted quartz lithic sandstone.|siliciclastic sedimentary rock|||N||02-SEP-23
Ardlethan Granite|554|||||Yes|Formation, beds|Formal|Other new published name|Described|||Ardlethan Suite|31543|Pragian|410|2.5|isotopic, Rb/Sr|magmatic crystallisation|Lochkovian|414.7|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|71213||||||Originally of Wynn (1961). Superseded by Wantabadgery Granite and Junee Reefs Granite in some areas. Previously included in the Koetong Supersuite [Bodorkos et al., 2013]. Considered as a felsic 'specialised' granite - resulting from extensive fractional crystallisation; responsible for tin mineralisation in Ardlethan, NSW. The mineralising event at Ardlethan is dated at 410+/-2.5Ma by Richards et al (Rb-Sr supported by K-Ar).|Porphyritic muscovite-biotite granite. S-type. Felsic and fractionated. Includes leucocratic syenogranite.|acid intrusive rock|||Y|S-type|18-AUG-23
Ardlethan Suite|31543|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Argalong Granite|26253|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|42313|42313|H.Basden|06-MAY-82||||Granite|acid intrusive rock|||Y||17-JAN-23
Argyle Formation|28148|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Mount Fairy Group|26052|||Pridoli||||deposition|Ludlow||||||800|NSW|No|34481||||||Not to be confused with Argyll Granodiorite - two unrelated units of different ages. Previously of the Taralga Group.|Packets of grey to white, medium-thick bedded, fine-medium grained, quartz and lithic-quartz sandstone, interbedded with packets of greenish grey and red, laminated to thinly bedded, rhythmically interbedded, fine-grained sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Argyll Granodiorite|581|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Argyll Suite|73911|Cisuralian||||intrusion|Permian||||||||No|31806||||||Not to be confused with Argyle Formation - two unrelated units of different ages. Source: Interim DMR250k Jan 2001. Formerly in the Hillgrove Suite; now in the Argyll Suite, of Hillgrove Supersuite.|Biotite granodiorite, gneissic in part. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Argyll Suite|73911|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||Hillgrove Supersuite|67847||||||||||||||No|||Champion, Blevin and Bultitude,|20-NOV-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Arkarula Formation|30027|Arkarula Sandstone Member|602|||Yes|Formation, beds|Formal|Variation of published name|Described|Brothers Subgroup|30028|||Late Permian||||deposition|Late Permian|256|||deposition||51||No|43194||||||Used in GSNSW seamless geology dataset 2021. Max Age: 256 Ma.|Fining-up sequence of fine to medium-grained lithic sandstone and siltstone with worm burrows.|siliciclastic sedimentary rock|||N||27-APR-23
Armidale beds|37004|Armidale Beds|615|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Rupelian|||||Late Eocene||||||||No|44450|||||||||||N||17-JAN-23
Arramagong West Granite|29572|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ludlow||||intrusion|Wenlock||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. Probably Late Silurian. Possible related to Young Ganodiorite|Granite|acid intrusive rock|||Y||17-JAN-23
Arranmor Ignimbrite Member|36829|Arranmor Ignimbrite|33383|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Lopingian|256.4|1.6|isotopic, U/Pb-Pb/Pb ion probe|eruption|Lopingian||||||150||No|23859|23859|||||Type Locality: 392000E, 6745000N. Occuring 40km north of Glen Innes.|Ignimbrite|acid volcanic rock||continental margin arc|N||17-JAN-23
Arrowfield Coal Member|77272|Arrowfield Seam|634|||Yes|Member, phase|Processing pending|Variation of published name|Briefly described|Mount Thorley Formation|23836|||Late Permian||||deposition|Late Permian||||||||No|68004||||||A variation on Arrowfield Seam (unit no. 634).|Coal, dull and bright to bright banded, sporadic calcite in cleats and joints; carbonaceous claystone, carbonaceous siltstone with fossil plant debris|organic rich sedimentary rock|||N||17-JAN-23
Arsenic Ridge Quartz Monzodiorite|640|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Boggy Plain Suite|2091|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|35109|35109||||||Quartz Monzodiorite|intermediate intrusive rock|||Y||17-JAN-23
Arthursleigh Suite|31547|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||Marulan Supersuite|69871|Pragian||||intrusion|Pragian|413.3|||||||No|42726||||||Includes named 8 granitic units and one unnamed unit - Torwood Granodiorite, Springponds Tonalite and Columba, Marulan, Lumley, Mount Hannibal, Corridgery and Banshea Granites in Goulburn 1:250k sheet area and extends east into Moss Vale 1:100k area, where it includes the Pleasant Hill Granite, age: 412.6 +/-2.2 Ma. Broadly contemporaneous with Bindook Group volcanics, which the plutons intrude.|Massive to porphyritic coarse-grained biotite-hornblende granite, medium- to coarse-grained biotite granite, fine- to medium-grained porphyritic leuco-granite, tonalite, granodiorite, and microgranite dykes.|acid intrusive rock|||Y||10-SEP-23
Arthursleigh Tonalite|654|Arthursleigh Granodiorite|21158|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Arthursleigh Suite|31547|Pragian||||intrusion|Pragian||||||||No|41420||||||Originally reserved as Arthursleigh Granodiorite.|Heterogenous tonalite; with well-dev'd unusual zonation from relatively mafic core to a felsic rim of adamellite; has a contact zone >4km wide in Late Ordovician strata along its eastern margin.|acid intrusive rock|||Y|I-type|17-JAN-23
Arties Coal Member|77623|Arties Seam|657|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Banded bright and dull coal seam; thin brown and grey mudstone bands, sporadic calcite in cleats; seam thickens to the NW with splits developing towards the base|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Arumpo bentonites|83667|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||Pliocene|3||inferred|maximum depositional age||||No|73581||||||Comprises 2 significant horizontal beds of bentonite that are 5-8 m thick, and are Na-Mg enriched. Murray Basin. Occurs 90 km northeast of Mildura. Originated from two separate volcanic events (Gardam et al., 2008). The lower bed was deposited in a marine environment, within a graben associated with the Neckarboo Fault. The overlying sediments are comprised of fluvial sequences and some additional bentonite formations.|Comprises 2 significant horizontal beds of bentonite.|sediment|||N||05-FEB-23
Ashburnia Group|29663|Cadia Group|3279|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Early Silurian|||||Early Silurian||||||205||No|22679|23214|Krynen, J. for Lachlan NGMA project.|31-AUG-95|||Bathurst 1:250 000 sheet area. To replace Cadia Group.|Grey-green feldspathic siltstone, graptolitic mudstone; thin-bedded graded fine-grained sandstone to siltstone upsequence; sporadic thin limestone conglomerate lenses; fossiliferous siltstone, algal limestone, massive-bedded fossiliferous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Ashburnia Group, Waugoola Group|42014|||||Yes|Supergroup|Informal|Variation of published name|Not recorded|||||Wenlock||||deposition|Llandovery||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Shale, limestone, siltstone, calcareous and feldspathic sandstone, conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Ashfield Shale|25701|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wianamatta Group|19967|||Middle Triassic||||deposition|Middle Triassic||||||61.6|NSW|No|43373|35690||||||Black to light grey shale and laminite.|siliciclastic sedimentary rock|||N||19-JUL-23
Ashford Coal Measures|705|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Kungurian||||deposition|Artinskian||||||300||No|48784|44565|||||Separate unit from Ashford Limestone nomenclature.|Fluvial arenite, argillite, cobble conglomerate and interbedded coal horizons|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Ashford Limestone Member|76101|Ashford Limestone|709|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Texas beds|18012|||Visean||||deposition|Visean||||||||No|||||||GSNSW's position is that this is current and has been published on the Inverell 1:250K metallogenic map (1998) [GSNSW State List May 2011]. This name also supersedes Ashford Caves Limestone Member. Note also unrelated unit:  Ashford Coal Measures.|Fossiliferous limestone, marble and magnetite-rich rock|carbonate sedimentary rock|||N||17-JAN-23
Ashford Member|77318|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Ashford Coal Measures|705|||Cisuralian||||deposition|Cisuralian||||||||No|68005||||||Invalidly named unit of Ashford Coal Measures. Contains the economically important Ashford seam; bituminous, medium volatile, high rank coking coal.|Coal, conglomerate.|organic rich sedimentary rock|||N||17-JAN-23
Ashleigh Member|714|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Glendalough Formation|7375|||Wenlock||||deposition|Llandovery||||||||No|35258|||||||Limestone and black shale|carbonate sedimentary rock|||N||17-JAN-23
Ashton Member|27696|||||Yes|Member, phase|Formal|Other new published name|Fully described|Regans Creek Limestone|26869|||Upper Ordovician||||deposition|Upper Ordovician||||||41||No|32151|||||||||||N||17-JAN-23
Ashtonfields Coal Member|77599|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Alnwick Formation|21118|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW) after B.C.Preston, K.J.Brown|14-JUN-12|||This name revived by GSNSW 14-JUN-2012.Used in GSNSW seamless geology dataset 2021.|Coal: dull and bright bands with stoney laminae; brown-black coaly shale, thin very fine-grained sandstone and siltstone partings|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Ashvale Suite|31545|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Ashvale Tonalite|82393|Ashvale Granite|721|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pridoli|||inferred||Pridoli|||inferred|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021. I-type pluton that intrudes the Westerly and Yoauk Leucogranites.|Medium-grained, weakly foliated dark-coloured biotite-hornblende tonalite. Accessory phases are zircon, apatite and opaques Contains rare equidimensional pelitic inclusions.|acid intrusive rock|||Y|I-type|06-SEP-23
Asylum Granite|33796|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Crooked Corner Suite|69868|Pridoli||||intrusion|Ludlow||||||||No|50233||Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wyangla Batholith.|Foliated to massive, porphyritic biotite granite, miarolitic allanite-biotite microgranite and intrusive rhyolite|acid intrusive rock|||Y||06-SEP-23
Attunga Creek Monzogranite|41049|Attunga Creek Adamellite|748|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moonbi Supersuite|36465|Lopingian|248|5||intrusion|Lopingian|253.5|1.4|isotopic, K/Ar|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade Project 18 Nov 2003. Formerly of the Moonbi Plutonic Suite as Attunga Adamellite. GSNSW Seamless 2023 shows this unit as Early Triassic in spite of giving Late Permian SHRIMP data.|Massive, medium- to coarse-grained biotite and hornblende monzogranite with prominent pink K-feldspar crystals, and minor titanite and magnetite grains.|acid intrusive rock|||Y|I-type|30-SEP-23
Attunga Eclogite|40176|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoproterozoic|571|22|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Neoproterozoic||||||||No|24599||||||Not to be confused with the Attunga Creek nomenclature of NSW or Attunga Paringa Formation in Victoria.  See also the informal Attunga eclogite. Used in the Mafic-Ultramafic Event Series dataset 2013, where age of eclogite facies metamorphism, i.e., time of eclogite formation given as 571+/-22 Ma from Watanabe et al. (1998).  In the Woodsreef Mélange, southern part of New England Orogen (uncertain location: serpentinised ultramafic rocks in Peel Fault ~10 km northeast of Altunga at: ~Lat 30.850000, Long 150.925000)|Mafic eclogite (high-pressure metamorphosed basaltic rock, such as a basalt or gabbro), metagabbro|low-intermediate grade metamorphic rock|metamorphosed basic igneous rock||U||17-JAN-23
Austinmer Sandstone Member|776|Austinmer Sandstone|777|||Yes|Member, phase|Formal|Unknown or process pending|Described|Bargo Claystone|1098|||Late Permian||||deposition|Late Permian||||||||No|29900|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Australasian Coal|781|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Adamstown Subgroup|107|||Permian||||deposition|Permian||||||||No|39308||||||This Formation was downgraded to the informal Australasian coal seam instead, but subsequently reinstated. Updated from GSNSW seamless geology dataset 2021.|Coal with numerous tuff bands.|organic rich sedimentary rock|igneous volcanic rock||N||17-JAN-23
Avenall Basic Intrusive Complex|23347|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Late Silurian||||intrusion|Early Silurian||||||||No|37529||H.Basden|05-MAY-80||||Mafic Intrusives|basic intrusive rock|||Y||04-SEP-23
Avoca Valley Shale|24675|Upper Avoca Valley Shale|18853|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cudal Group|4974|||Ludlow||||deposition|Wenlock||||||370|NSW|No|43515|40328|||||Originally named Upper Avoca Valley Shale. Intruded by Cowra Granodiorite. 370m thick at type section.|Green and red-brown shale, coarse garnetiferous arenite, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Avon Coal Member|77423|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Waukivory Creek Formation|24087|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Invalidly named member of Waukivory Creek Formation, Avon Subgroup, Gloucester Basin. In GSNSW stratigraphy list Nov 2013. Avon Subgroup has priority. Probably at least partly equivalent to the Avon Coal Seam. This Coal Member should be renamed to avoid any confusion with the Subgroup.|Coal with quartz rich tuffaceous material|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Avon Lea Mudstone Member|795|||||Yes|Member, phase|Formal|Other new published name|Fully described|Cadia Coach Shale|3277|||Llandovery||||deposition|Llandovery||||||12||No|35258|||||||Massive grey mudstone characterised by very sparsely distributed white, sand sized feldspar grains.|siliciclastic sedimentary rock|||N||17-JAN-23
Avon Subgroup|802|||||Yes|Subgroup|Formal|Variation of published name|Briefly described|Gloucester Coal Measures|7452|||Late Permian|||||Late Permian||||||420||No|40872||||||Not related to Avon Supergroup in Victoria Tasman Fold Belt, which should be Avon River Supergroup. Subset of the Gloucester Coal Measures which Include rocks of the former Avon Coal Measures.|||||N||17-JAN-23
Avondale Granite|29277|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Redfern Suite|31535|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Name ispossibly invalid as Avondale Clay in South Australia has priority for usage, although they are of different ages.|Granite|acid intrusive rock|||Y||17-JAN-23
Avymore Claystone|77384|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Black Jack Group|1798|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|12-JUN-12|||The unit averages 1.5 m in thickness in the southern and central parts of the Cobbora Embayment.  Used in GSNSW seamless geology dataset 2021.|Yellow to off white or buff claystone deposited as a locally reworked tuff.|fine grained siliciclastic rock|||N||31-MAR-23
Awaba Tuff|808|Awaba Tuff Member|807|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Newcastle Coal Measures|27861|||Lopingian|253.14|.06|isotopic, U/Pb-Pb/Pb, TIMS|eruption|Lopingian|256|4|isotopic, U/Pb||2.91|30|NSW|No|43344||||||Elevated from Member to Formation. Replaces Awaba Tuff Member. Thickness in type section 9.43m in BHP Coal Point Bore.|Tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, chert, usually contains abundant mica in basal 0.2-0.4 m.|acid volcanic rock|siliciclastic sedimentary rock||N||14-AUG-23
Ayr Conglomerate Member|819|Ayr Conglomerate|820|||Yes|Member, phase|Formal|Other new published name|Defined|Isismurra Formation|8801|||Mississippian||||deposition|Mississippian||||||470|NSW|No|32869||||||Defn card held for Ayr Conglomerate, but it is described as a member of the Isismurra Formation, ie. this is the same unit. [CEB May 2002]|Basal conglomerate, poorly sorted with interbeds and matrix of lithic arenite; large amount of arc-derived clasts.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Ayrdale Sandstone Member|821|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Rowan Formation|26878|||Cisuralian||||deposition|Cisuralian||||||||No|36940|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Baal Bone Formation|24603|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian||||||53|NSW|Yes|39232|40806|C.Bembrick, Robertson Research (Australia) Pty Ltd|25-JUL-80|Russell, T.|13-JUL-83|See letter for further information. Apparently not published in proposed publication: Australian Coal Geology. See Roy Soc NSW, 1983, instead (84/24116). Formerly part of Charbon Sub-Group.|Mudstone, siltstone, claystone, bioturbation.|siliciclastic sedimentary rock|||N||17-JAN-23
Baan Baa Formation|24168|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||||||deposition||||||0|54|NSW|Yes|40952||S.Thomson|20-MAR-86|NSW SNSC|24-OCT-86|Definition dated 24-JUN-1986.|||||N||17-JAN-23
Babego Tuff Member|829|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lochkovian||||eruption|Lochkovian||||||||No|35287|||||||Tuff|igneous rock|||N||17-JAN-23
Babepercy Volcanics|23349|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Coombadjha Volcanic Complex|23506|||Late Permian||||eruption|Late Permian||||||100||No|41041||McPhie, J.|11-MAY-82||||Bedded volcaniclastic rocks and fine-grained silicic porphyry.|igneous rock|||N||17-JAN-23
Babepercy Volcanics Member|82394|Babepercy Volcanics|23349|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Coombadjha Formation|82391|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Bedded volcaniclastic rocks and fine-grained silicic porphyry.|acid volcanic rock|sedimentary rock||N||17-JAN-23
Babinda Volcanics|25702|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Kopyje Group|28654|||Pragian||||eruption|Late Silurian|418.9|2.5||||1500|NSW|No|42467|41528|||||Kopyje Shelf.|Aphyric to sparsely plagioclase +/- quartz-phyric coherent, often amygdular to vesicular dacitic lava, pumice-rich volcanic sandstone, and less abundant vitric-rich volcanic siltstone, crystal-lithic volcanic sandstone and volcanic lithic breccia.|acid volcanic rock|||N|I-type|09-AUG-23
Back Creek Group|845|Middle Bowen Beds|11779|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Late Permian||||deposition|Cisuralian||||||400|QLD|No|44514|36739|||||Almost identical in scope to the earlier term Middle Bowen (marine) series (Jack 1879, Koppe 1978).  Main oil source in Surat Basin -- for Moonie field. Only present in eastern part of Surat Basin.|Quartzose to lithic sandstone, siltstone, mudstone, carbonaceous shale, calcareous sandstone and siltstone, conglomerate, coal, limestone and sandy coquinite.|siliciclastic sedimentary rock|organic rich sedimentary rock|retro foreland basin|N||31-JUL-23
Back Creek Ignimbrite Member|70448|Back Creek Rhyodacite Tuff""|40551|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Currabubula Formation|5055|||Pennsylvanian|308.9|2.8||intrusion|Pennsylvanian|308.9|2.8||||||No|62095||||||RefID: 62095 - "Carboniferous-Lower Permian stratigraphy in Tamworth Belt ......." by Roberts et al (AJES 53/2, 2006). Could this be a typo for Chilcotts Creek Ignimbrite Member?? Relationship with Back Creek Tuff Mbr (superseded by Kankool Ignimbrite Member) unclear - probably both names refer to the same unit? Nomenclaturally the Back Creek Group has priority.|Tuff.|acid volcanic rock|||N||02-JUN-23
Back Forest Tuff Bed|37355|||||Yes|Member, phase|Formal|Resvd name published|Described|Gerringong Volcanics|7155|||Late Permian|||inferred|eruption|Late Permian|||inferred|||||No|71542||Jones B.|15-NOV-01|||Type section 56/288250E, 6140125N. A new bed within the Broughton Formation, southern Sydney Basin. It forms part of the Gerringong Volcanic facies. Assumed NLR 6-FEB-2009.|Thin tuffaceous ash deposit containing latitic clasts, pumiceous material and glass shards. ?andesitic|intermediate volcanic rock|||N||17-JAN-23
Back Station Ignimbrite Member|69887|||||Yes|Member, phase|Formal|Other new published name|Defined|Gundary Volcanics|69883|||Lochkovian|414|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Lochkovian|414|4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006). Part of the Mount Fairy Group. Outcrops in Strathaird area were formerly placed in Turrallo Quartz Diorite by Scheibner (1973).|Blue-grey crystal-rich welded dacitic ignimbrite composed of crystals/fragments of plagioclase, qtz-hornblende, clinopyroxene and orthopyroxene, +accessory opaques, K-feldspar, apatite + zircon, set in micro- to crypto-crystalline matrix; spherulites....|acid volcanic rock|||N||17-JAN-23
Back Swamp Granodiorite|25770|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|35263|41905|||||See also Black Swamp Granite and Black Swamp Granodiorite.|Cordierite biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y||17-JAN-23
Baconian Swamp granite|76031|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Informal unit based entirely on geophysics.  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943.|Interpreted as S-type granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Baconian Swamp granite suite|80443|Baconian Swamp Granite Suite|76030|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Middle Devonian|||inferred||Middle Devonian|||inferred, intrusive relationship|||||No|70718||||||Hay-Booligal Zone. Informal name, derived from geophysics with no known outcrop or drillcore intersecting this suite.||acid intrusive rock|||Y|S-type|17-JAN-23
Badgerys Breccia|25771|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Talaterang Group|28268|||Carboniferous||||deposition|Carboniferous||||||26|NSW|No|31298|31298|||||Of the Talaterang Group (Scheibner, 1998); but interpreted as part of the Shoalhaven Group by Tye, Fielding and Jones (1996).   Unit to be downgraded to Member, for use in the Moss Vale 1:100k sheet area. Tye et al. (1996) suggested the 'Badgerys Breccia' is nothing more than a facies variation of the Tallong Conglomerate. [S. Trigg 16-FEB-2012]|Poorly sorted angular clasts, upper part is megabreccia (a lateral moraine?).|siliciclastic sedimentary rock|||N||17-JAN-23
Badgerys Breccia Member|76755|Badgerys Breccia|25771|||Yes|Member, phase|Formal|Variation of published name|Fully described|Tallong Conglomerate|17708|||Cisuralian||||deposition|Cisuralian||||||||No|70661||Trigg, S., Campbell, L. (GSNSW)|16-FEB-12|||Of the Tallong Conglomerate. For use in the Moss Vale 1:100k sheet area. Tye et al. (1996) suggested the 'Badgerys Breccia' is nothing more than a facies variation of the Tallong Conglomerate. [S. Trigg 16-FEB-2012]|Sedimentary pebble breccia with a local mega-breccia and some sandstone lenses. Massive to poorly stratified.|sedimentary rock|||N||17-JAN-23
Badja Granodiorite|21173|Badja Granite|869|||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Lewis P.|21-DEC-90|||Same unit as Tilga Granodiorite used in D. Ilsley's thesis.|Hornblende-biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Bagdad Formation|875|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Ashburnia Group|29663|||Llandovery||||deposition|Llandovery||||||104||No|35258|23214||||||Limestone, sandstone, conglomerate, siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||06-SEP-23
Bakers Creek Complex|82289|Bakers Creek Diorite Complex|73103|||Yes|Group, Suite|Formal|Variation of published name|Described|||Bakers Creek Supersuite|75958|Cisuralian|||inferred||Pennsylvanian|299.7|2|isotopic, U/Pb-Pb/Pb ion probe|||||No||||||||Mafic igneous complex; pyroxene-bearing diorite, quartz diorite, tonalite, granodiorite, and monzogranite.|basic intrusive rock|intermediate intrusive rock||Y||20-JUL-23
Bakers Creek Suite|37374|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Hillgrove Supersuite|67847|Carboniferous|293.3|3.2|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Carboniferous|305.1|2.9|isotopic, U/Pb-Pb/Pb ICP-MS|||||No|24040||||||May be the same rocks as Bakers Creek Diorite Complex. To be included in Bakers Creek Supersuite.|Contains a variety of rock types ranging from gabbros and diorites through to tonalites and granophyres.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Bakers Creek Supersuite|75958|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Cisuralian|||||Cisuralian||||||||No|71628||GSNSW stratigraphy review (Blevin, Greenfield, Cameron)|17-MAY-11|||New England Orogen. Partly replaces Hillgrove Supersuite. To include Barney House Gabbro, Charon Creek Diorite, Cheyenne Complex, Table Top Diorite, Bakers Creek Suite, Apsley River Suite. Used in GSNSW seamless geology 2023.|Gabbro and diorite, with granodiorite and monzogranite.||||Y||04-SEP-23
Balala Granodiorite|917|||||Yes|Formation, beds|Formal|Other new published name|Described|||Uralla Supersuite|67894|Lower Triassic||||intrusion|Cisuralian|295|1.7||||||No|30789||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Part of the Uralla Supersuite.|Fine to coarse grained hornblende - biotite granodiorite and minor diorite|acid intrusive rock|||Y|I-type|23-AUG-23
Balarang Conglomerate|920|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||deposition|Devonian||||||||No|43407||||||Is a NSW unit and does not extend into Queensland [advice from IWW JUL-2020].|||||N||17-JAN-23
Bald Hill Claystone|939|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lower Triassic||||||20||No|43342||||||Within the Narrabeen Group.|Dominantly red shale and fine to medium-grained sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Bald Hill Formation|73063|Rosenthal Creek Formation|16352|||Yes|Formation, beds|Formal|Variation of published name|Described|Silverwood Group|16903|||Emsian||||deposition|Pragian||||||2450||No|61392||||||In the Keinjan Terrane. Subdivided into four lithological packages - Units A, B and C, and the subunit, Kelvin Falls Sill. Not to be confused with the Brisbane area name, Bald Hills, or the NSW Triassic Bald Hill Claystone.|Hyperbyssal and extrusive metabasites and metagabbro; polymictic paraconglomerate and breccias; basaltic hydroclastic debris flows, volcaniclastic sediments, limestone, arenite, mudstone.|metamorphosed basic igneous rock|siliciclastic sedimentary rock|island arc|N||17-FEB-23
Baldon granite|76050|||||Yes|Formation, beds|Informal|Other new published name|Described|||Cunninyeuk granite suite|80441|Upper Devonian|||inferred|intrusion|Upper Devonian|||inferred|||||No|66934||||||Originally of Cunninyuek Granite Suite (should be Cunninyeuk). Informal unit based entirely on geophysics. Interpreted as S-type granite similar to Lake Boga and Pyramid Hill Granites. Shown as Late Devonian in RefID 66943. Extends across Swan Hill, Deniliquin and Hay 1:250k map sheet areas.|Inferred as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Baldwin Formation|949|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Upper Devonian||||deposition|Upper Devonian||||||2000||No|43385|43399||||||Massive to thickly bedded, dark grey greywacke with subordinate arenite, mudstone, siltstone.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Baledmund Formation|954|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kopyje Group|28654|||Pragian||||deposition|Pridoli|419.3|2.8|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||2000|NSW|No|35287|41528|||||Kopyje Shelf. Contains age-diagnostic conodont and trilobite.|Thinly laminated, commonly ferruginous, occasionally calcareous, siltstone and minor interbedded, well-sorted fine-grained lithic-quartz sandstone. Boulder to granule polymictic conglomerate and sedimentary breccia are variably developed at the base.|siliciclastic sedimentary rock|||N||04-AUG-23
Balgownie Coal Member|27324|Gillan Creek Seam|25007|||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Late Permian||||deposition|Late Permian||||||||No|29900|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Balickera Conglomerate|965|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Carboniferous||||deposition|Carboniferous|||||||NSW|No|44253|44254|||||Balickera Conglomerate equiv to lower Mount Johnstone Fm, but retained as a Member [J.Greenfield 22 JUN-2012]. Formerly included in Kings Hill Group, but this name subsequently abandoned.|Conglomerate, contains tuff and ignimbrite.|siliciclastic sedimentary rock|||N||17-JAN-23
Balickera Conglomerate Member|77082|Balickera Conglomerate|965|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Mount Johnstone Formation|12849|||||||deposition|||||||||No|||Greenfield, J. (GSNSW)|26-JUN-12|||Balickera Conglomerate equiv to lower Mount Johnstone Fm, but retained as a Member [J.Greenfield 22 JUN-2012]|Conglomerate, contains tuff and ignimbrite.|siliciclastic sedimentary rock|||N||17-JAN-23
Ballallaba Monzogranite|77015|Ballallaba Adamellite|27282|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenbog Suite|7361|Lower Devonian|394|6||intrusion|Lower Devonian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. This name used in 2013 GSNSW State list, and in GSNSW Seamless geology 2023.|Hornblende-biotite monzogranite, biotite monzogranite, porphyritic monzogranite, leucogranite.|acid intrusive rock|||Y|I-type|18-SEP-23
Ballandean Monzogranite|82290|Ballandean Granite|41584|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Ballandean Suite|73886|Cisuralian|||||Cisuralian|295|||||||No|71628||||||New name (this study); previously Ballandean Granite. GSNSW seamless geology also uses Ballandean Monzogranite.|White to grey, fine- to medium-grained, variably porphyritic hornblende-biotite monzogranite and biotite-hornblende-(clinopyroxene) granodiorite to monzogranite, and minor quartz monzonite.|acid intrusive rock|||Y|I-type|04-SEP-23
Ballast Formation|33967|Ballast beds|988|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Girilambone Group|27158|||Darriwilian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||||No|22555||||||Structural zone/unit: Girilambone Zone/Canbelego Block. Includes an un-named but separately mapped sub-unit: 'subsurface, highly altered vesicular basalt, gabbro and ultramafic rocks'.|Quartzose arenite (turbidite), siltstone, black siliceous mudstone, less common chert; basalt layers locally; variably metamorphosed.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Ballengara Member|991|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Hyndmans Creek Formation|21988|||Serpukhovian||||deposition|Visean||||||||No|38803||||||Replaced in part by Pappinbarra Formation and in part by Hyndmans Creek Formation. Previously included in Cooperabung Formation, now included in Hyndmans Creek Formation by NSW Geological Survey (18APR05). Lithology, age updated from GSNSW seamless geology dataset 2021.|Fine-grained sandstone, coarse-grained sandstone with crinoid fragments and fossiliferous conglomeratic limestone.||||N||02-JUN-23
Ballimore Formation|997|Ballimore Beds|994|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Lower Jurassic||||deposition|Upper Triassic|||||||NSW|No|43476|30610|||||Redefined 1973. Laterally equivalent to Napperby Formation + Purlawaugh Formation.|||||N||17-JAN-23
Ballingoole Limestone|28166|Ballingoole Formation|998|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bowan Park Limestone Subgroup|31724|||Katian||||deposition|Katian||||||280|NSW|No|33063|33063|||||No single type section due to outcrop problems.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Balls Pyramid Basalt|83552|||||Yes|Formation, beds|Formal|Other new published name|Described|Lord Howe Volcanic Complex|83554|||Miocene|||||Miocene||||||||No|73554||||||Used in GSNSW Seamless Geology 2021.|Basaltic lava flows (usually only a few metres thick) with rare thin tuffaceous horizons and rare dykes.|basic volcanic rock|||N||05-FEB-23
Ballyhooley Granite|1000|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Hovells Suite|69895|Ludlow||||intrusion|Ludlow|425|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||Part of the Wyangala Batholith. Probably not related to the Bally Hooley Ignimbrite of Victoria. Previously of Ballyhooley Suite. Stated to be part of Hovells Suite in GOULBURN 1:250K map sheet (2008).|Grey, coarse-grained, foliated, equigranular biotite granite to granodiorite in a zoned pluton with medium-grained, foliated, often prophyritic biotite granodiorite stocks. Moderately high K, Th and U radioelement response.|acid intrusive rock|||Y|S-type|17-JAN-23
Balmain Coal Member|21186|||||Yes|Member, phase|Informal|Resvd name published|Unpublished|Loddon Sandstone|34000|||Lopingian||||deposition|Lopingian||||||||No|||Hill M.|22-FEB-94|||Central & NW Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Coal and carbonaceous claystone, low angle trough cross-bedding, carbonaceous fossil plant remains.|organic rich sedimentary rock|||N||17-JAN-23
Balmeringa Granite|69875|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Tumboramboro Suite|69874|Devonian||||intrusion|Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Of the Wologorong Supersuite.|Fine grained, equigranular, cordierite?-biotite granite; xenoliths of composite gneiss, metasedimentary rock and quartzo-feldspathic segregations; high K and Th, low-high U response; low magnetic susceptibility.|acid intrusive rock|||Y||18-SEP-23
Balmoral Coal Member|1001|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Skeletar Formation|16963|||Permian||||deposition|Permian||||||||No|36940||||||Of Greta Coal Measures, Sydney Basin. Two splits (lower is the "Balmoral" split and the upper is the "Savoy" split).|Coal, with two splits (lower is the "Balmoral" split and the upper is the "Savoy" split),  intersplit sediments include sandstone, shale, and carbonaceous shale|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Banalasta Monzogranite|41050|Banalasta Adamellite|1022|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Banalasta Suite|67897|Artinskian||||intrusion|Sakmarian|286.2|2.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Part of Bundarra Supersuite.|Porphyritic biotite-muscovite-cordierite granite|acid intrusive rock|||Y|S-type|17-JAN-23
Banalasta Suite|67897|Banalasta Suite""|40242|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bundarra Supersuite|67901|Cisuralian|||||Cisuralian||||||||No|24222||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.|Monzogranite.|acid intrusive rock|||Y||17-JAN-23
Bancannia andesite""|79643|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Drumian|||inferred|magmatic crystallisation|Miaolingian|506.1|2.7|isotopic, U/Pb-Pb/Pb ion probe|||||No|69043||||||Delamerian Orogen. The sample dated resembles (in hand specimen) the Mount Wright Volcanics, but because it is younger than the Cymbric Vale Formation, it cannot be part of the Mount Wright Volcanics.|Feldspar phyric andesite.|intermediate volcanic rock|||N||17-JAN-23
Banda Banda Monzodiorite|26367|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Banda Banda Suite|82291|Upper Triassic|222.9|||intrusion|Middle Triassic|240||inferred|intrusion||||No|38916||||||Of the Gundle Belt. Source: Interim DMR250k Jan 2001|Monzodiorite|intermediate intrusive rock|||Y||23-AUG-23
Banda Banda Suite|82291|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Upper Triassic|||inferred||Middle Triassic|||inferred|||||No||||||||||||Y||17-JAN-23
Bandandra sand|1029|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||Sand|sediment|||N||17-JAN-23
Bandon Grove Limestone Member|23357|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||15||No|40883||D.Lindley|10-AUG-83||||Biogenic limestone of crinoid columnals, brachiopods and solitary corals.|carbonate sedimentary rock|||N||17-JAN-23
Bangadang Formation|82395|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Darriwilian|458.4||inferred||Warendan|485.4||inferred|||||No|||||||Lithology from GSNSW seamless geology 2021, 2023.|Laminated metasiltstone and metamudstone; thin- to medium-bedded fine-grained quartz-wacke with detrital muscovite+feldspar grains; thick-bedded quartz-arenite; laminated cherty metasiltstone packages.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||11-SEP-23
Bangadilly Granite|1037|Bangadilly Granodiorite|21192|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Arthursleigh Suite|31547|Pragian||||intrusion|Pragian||||||||No|42726||||||See also reserved name Bangadilly Granodiorite. Formerly of Bangadilly Suite. Based on geochemistry [Simpson 1979, 1986] and petrology, GSNSW are placing the Bangadilly Granite in the Arthursleigh Suite [advice from S.Trigg 16-FEB-2012].|Coarse-grained biotite granite to a medium- to coarse-grained biotite-hornblende granodiorite.|acid intrusive rock|||Y|I-type|03-SEP-23
Bango Limestone Member|1051|||||Yes|Member, phase|Formal|Variation of published name|Defined|Hawkins Volcanics|8184|||Wenlock|||inferred, biostratigraphic correlation|deposition|Wenlock|||inferred, biostratigraphic correlation|||90|NSW|No|32675||||||Formerly Bango Beds (Shearsby, 1912), Bango Series (Brown, 1940). Type section is Bango Limestone Quarry, where it is 50 m thick.|Massive, recrystallised, fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Bangus Formation|80945|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Wenlock|||||Wenlock|430.6|1.7||||||No|||Eastlake, M. (GSNSW)|19-MAR-19|||Occurs on the Tarcutta (8427) and Tumut (8257) 1:100 000 map sheet areas. A multiply deformed sequence of compositionally immature turbiditic sedimentary rocks. Age is derived from detrital zircon geochronology and an intrusive relationship with the Wondalga Granodiorite (432+/-1.9 Ma). Wheretobepublished: GSNSW Stratigraphic Unit Table Database. Published in GSNSW seamless geology.|Laminated siltstone and fine-grained sandstone; medium- to thick-bedded amphibole- and/or pyroxene-rich arkosic sandstone with graded bedding; chlorite-epidote-actinolite schist; syngenetic, banded silica-magnetite+/-sulfide intervals. Greenschist facies.|siliciclastic sedimentary rock|||N||30-SEP-23
Banks Wall Sandstone|1065|Banks Wall Sandstone Member|1064|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Grose Subgroup|26595|||Lower Triassic||||deposition|Lower Triassic||||||114.6||No|29749|||||||Predominantly quartzose, but also contains abundant ironstone bands, occasional conglomerates and numerous claystone lenses several metres thick.|siliciclastic sedimentary rock|||N||19-JUL-23
Bannaweera Gabbro|82346|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cisuralian|||inferred||Cisuralian|||inferred|||||No|71628||||||no age dating. Broad age inferred from unit relationships.Brown et al. (1990) after unpublished works by Ransley (1970) and Brown (1986). Named after a local homestead. Forms a curvilinear, ~4 x 0.350 km intrusion, with a prominent ridge, about 13 km WNW of Uralla. Previously included (?as the only unit) in the Bannaweera Suite. GSNSW seamless 2023 shows this unit as Cisuralian.|Medium-grained hornblende gabbro, hornblende melagabbro, gabbro-diorite, with a pegmatite-appinite facies.|basic intrusive rock|||Y||29-AUG-23
Banshea Granite|1073|Banshea Adamellite|1072|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Arthursleigh Suite|31547|Lochkovian|413.3|1.8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lochkovian||||||||No|42726||||||Supersedes Banshea Adamellite - see Taralga 2nd edition 100K geology map, 2006.  Constrains the age of the Ruby Creek silver prospect.|Porphyritic, biotite-hornblende granite with subordinate, coarse grained, inequigranular, hornblende-biotite granite and fine grained, hornblende rich granite; minor aplitic phases; low K, Th and U responses; low magnetic susceptibility.|acid intrusive rock|||Y|I-type|17-JAN-23
Bar Beach Formation|1077|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Lambton Subgroup|10115|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||Of Lambton Subgroup. Included Cockle Creek Conglomerate Member. This name dropped in 1999, but revived again more recently. Used in GSNSW seamless geology dataset 2021.|Shale, siltstone, sandstone; minor conglomerate, claystone and tuff.|siliciclastic sedimentary rock|||N||30-AUG-23
Baralaba Coal|77054|Baralaba Coal Measures|1078|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Blackwater Group|1876|||Late Permian||||deposition|Late Permian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||See previous name for definition. Probably includes Kaloola Member. Used in GSNSW seamless geology dataset 2021 where age comes from.|Calcareous mudstone and shale, coal and feldspatholithic sandstone; minor lithic sublabile sandstone, tuff, bands of calcareous sandstone nodules and concretionary ironstone.|sedimentary rock|||N||03-APR-23
Baralaba Coal Measures|1078|Baralaba Coal measures|1079|||Yes|Formation, beds|Formal|Other new published name|Defined|Blackwater Group|1876|||Wuchiapingian||||deposition|Wuchiapingian|||inferred, underlying unit|||35|NSW|No|48600|44169|||||See also the misspelt Barabala Coal Measures, Baralba Coal Measures. Reference Section for lower part in GSQ Munduberra 5.  Complete section in logs and cuttings from UOD Burunga 1 & UOD Cockatoo Creek 1.|Calcareous mudstone and shale, coal and feldspatholithic sandstone; minor lithic sublabile sandstone, tuff, bands of calcareous sandstone nodules and concretionary ironstone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||31-JUL-23
Barcaldane Granite|26369|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Bardool Conglomerate|1090|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nymboida Coal Measures|14438|||Middle Triassic||||deposition|Middle Triassic||||||1070|NSW|No|43881|34340|||||Is a NSW unit and does not extend into Queensland [advice from IWW Jul-2020]|Cobble conglomerate, lithic sandstone, claystone, siltstone.|siliciclastic sedimentary rock|||N||30-JUN-23
Barfield Formation|27325|||||Yes|Formation, beds|Formal|Other new published name|Defined|Back Creek Group|845|||Roadian|260|||deposition|Kungurian|||biozone|||700|NSW|No|44514|44169|||||Gas source rocks.  Reference section in GSQ Mundubbera 7 & 8.|Green to dark blue, locally calcareous mudstone with local calcareous to phosphatic concretions and glendonites; lithic and feldspathic sandstone and minor conglomerate; minor lapilli tuff and volcanilithic pebble conglomerate; rare andesite.|siliciclastic sedimentary rock|||N||31-JUL-23
Bargo Claystone|1098|Bargo Claystone Member|1097|||Yes|Formation, beds|Formal|Variation of published name|Described|Sydney Subgroup|17602|||Lopingian||||deposition|Lopingian||||||||No|34060|||||||Claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Barmedman Granite|23361|||||Yes|Formation, beds|Formal|Resvd name published|Described|Temora Complex|69152|Barmedman Suite|31550|Famennian|364|2||intrusion|Famennian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD in Chappell et al (1991).|Biotite granite|acid intrusive rock|||Y||17-JAN-23
Barmedman Suite|31550|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian|364|||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Barnby Hills Shale|24694|Barnby Hills shale|1127|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mumbil Group|13411|||Ludlow||||deposition|Wenlock||||||600|NSW|No|43517|23170|||||Northwest. Originally included in Molong Beds.|Thinly interbedded shale, siltstone and minor quartzose arenite; minor limestone.|siliciclastic sedimentary rock|||N||06-SEP-23
Barney House Gabbro|36970|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian||||intrusion|Cisuralian||||||||No|23720||||||Dorrigo - Coffs Harbour 1:250 000 sheet. To be moved to Barney House Suite, Bakers Creek Supersuite.|Olivine gabbro.|basic intrusive rock|||Y||17-JAN-23
Barneys Spring Andesite Member|23362|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Caroda Formation|3651|||Visean||||eruption|Visean||||||||No|41009||R.Brown|16-JAN-87|||See also defn for (misspelt) Barneys Springs Andesite Member. Age updated from GSNSW seamless geology dataset 2021.|Brown to grey, locally agglomeratic andesite with large crystals of resorbed plagioclase, clinopyroxene, orthopyroxene and opaque minerals. The groundmass is predominantly red-brown glass partially replaced by chlorite and zeolite|intermediate volcanic rock||forearc|N||02-JUN-23
Barokaville Formation|1137|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|35187||||||(Taylor 1976). Name probably obsolete. Unit probably Cainozoic.|||||N||17-JAN-23
Barongarook Ignimbrite Member|70451|Barongarook|41414|||Yes|Member, phase|Formal|Resvd name published|Defined|Woodton Formation|31412|||Permian||||eruption|Permian||||||12||No|62095|62095|||||Reserved as Barongarook. See also Barangarook Tuff Member (misspelt and should be Barongarook).|Beige unwelded ignimbrite.|acid volcanic rock||extensional continental backarc|N||17-JAN-23
Baroorangee Creek Formation|76020|Baroorangee Creek Subgroup|35624|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ponto Group|35621|||Cambrian||||deposition|Cambrian||||||||No|66918|66623||||||Mica schists including magnetite-chlorite schist, hematite-quartz gneiss, minor dolerite; very minor calcite-quartz schist. Also red-brown to black, very fine-grained quartz and magnetite rock; white quartz veins with pyrite.|foliated metamorphic rock|||N||17-JAN-23
Barracks Creek Monzogranite|76942|Barracks Creek Adamellite|1154|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Monzogranite, leucogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Barrallier Ignimbrite|34265|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Bindook Group|69879|||Pragian|413.5|2.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lochkovian|414.4|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|500|700||No|22678||||||See misspelt Barallier Formation for original SHRIMP dating report. Includes rocks of the former Rileys Ridge Rhyodacite Member and the Pulpit Rock Dacite Member.|Bluish grey, welded, dacitic ignimbrite containing fractured phenocrysts of plagioclase, quartz, hornblende, enstatite, with minor biotite set in a recrystallised quartzo-feldspathic groundmass.|acid volcanic rock|||N|I-type|17-JAN-23
Barrandella Shale Member|26371|Barrandella Shale|1167|||Yes|Member, phase|Formal|Variation of published name|Defined|Silverdale Formation|16898|||Ludlow|||biozone|deposition|Ludlow|||biozone|||122.8|NSW|No|45075|68592|||||The name `Barrandella Shales¿ was first used by Etheridge (1904). Part of Silverdale Fm, Hattons Corner Group.|Grey mudstone with thin siltstone and very fine-grained sandstone interbeds, fossiliferous shale, thinly-bedded limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Barrat Formation|35611|Barrat Conglomerate|1171|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||||No|61964||Meakin S.|13-JUN-00|||Superseded Barrat Conglomerate on CARGELLIGO 1:250 000 map sheet as use of the term "conglomerate' was misleading because most of the unit consists of pebbly sandstone and sandstone.|Mainly pebbly polymictic paraconglom., pebbly sandstone, med.grained lithic sandstone, quartz-lithic sandstone + minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Barrett Coal Member|77627|Barrett Seam|27327|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Foybrook Formation|26561|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Coal dull and bright bands, calcite in cleats; light-grey very fine-grained sandstone, dark-brown mudstone bands with coaly laminations, oolitic siderite|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Barrier Suite|74589|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||Potosi Supersuite|41392||||||||||||||No|64097|||||||||||N||17-JAN-23
Barrington Basalt|83197|Barrington Tops tholeiite|1194|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Eocene|48.4|.5|isotopic, K/Ar||Paleocene|59|.6|isotopic, Ar/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. The oldest K-Ar age date of 58.7 +/- 0.5 Ma falls within error of modern Ar-Ar dating of 58.2 +/- 0.5 to 59.0 +/- 0.6 Ma. Some U-Pb zircon ages are 3 Ma suggesting minor volcanism continued well after the main shield forming event between 58.7-48.5 Ma. See also Barrington Tops alkali olivine basalt.|Alkaline olivine basalt and basanite flows with minor evolved hawaiite and nepheline hawaiite with minor intrusions of theralite and teschenite. Minor tholeiitic basalt flows at the base of the sequence.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Barrington River Granodiorite|82347|||||Yes|Formation, beds|Formal|Other new published name|Described|||Omadale Brook Suite|82351|Kungurian|277.1|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Kungurian|277.1|1.9|inferred|||||No|71628||||||Of Omadale Brook Suite, Barrington Tops Supersuite. Includes the (SHRIMP dated) Glowang Granodiorite Phase. GSNSW seamless 2023 shows this unit as Triassic, and does not include geochron.|Equigranular, medium-grained orthopyroxene-clinopyroxene-(amphibole-biotite) granodiorite; minor dark grey, biotite-clinopyroxene-orthopyroxene granodiorite and amphibole-(pyroxene-opaque oxide) .|acid intrusive rock|||Y||24-AUG-23
Barrington Tops Supersuite|82349|||||Yes|Supergroup|Informal|Other new published name|Briefly described|||||Guadalupian|265||inferred|magmatic crystallisation|Cisuralian|280||inferred|magmatic crystallisation||||No|71628||||||In 2017 consisted of the Barrington Tops Complex, formerly Barrington Tops Granodiorite. Emplaced over at least 10 Ma, age range inferred from dating of most constituent units. in 2020 appears to consist of Omadale Brook Suite, an unnamed granodiorite, and Gummi Plain Granodiorite,. GSNSW regards this unit as Triassic, in spite of Early Permian geochron.|A magmatic complex incorporating early quartz diorite dykes and stocks, clinopyroxene-orthopyroxene granodiorite and hornblende-biotite-granodiorite plutons (dominant), and later aplitic, granodioritic and hornblende-phyric dykes. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Barrona Granite|79940|Barrona granite|78370|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||Utah Lake Suite|79961|Middle Devonian|||||Middle Devonian||||||||No|||Purdy, D. (GSQ), Hegarty, R. (GSNSW)|20-JUN-17|||Name to be formalised. Non-outcropping, non-magnetic granite. Peanut shaped on the Wanaaring 1:100k map sheet. Age:  389 Ma, recalculated K-Ar; Richards and McDougall 1986. Shows magnetic contrast in the aureole with both granite and schist intersected in water bores. Thomson Orogen. Published in GSNSW seamless geology.|Biotite granite; hornfelsed contact rocks at margin.|acid intrusive rock|||Y||26-SEP-23
Barrow Range Member|1214|Barrow Range Beds|1212|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lower Devonian||||deposition|Lower Devonian||||||100||No|35287||||||See also Barrow Range Beds, Barrow Range Sandstone.|Conglomerate, quartz-lithic arenite.||||N||20-JUL-23
Barry Granodiorite|1218|Barry Granite|27704|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Barry Suite|31549|Late Silurian||||intrusion|Late Silurian|425.8|1.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|34907||||||Formerly named Barry Granite and included Sunset Hills Granite. Intrudes the Adaminaby Group, Coombing Formation and Blayney Volcanics.|Hornblende biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Barry Suite|31549|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Bartletts Creek Granite|29526|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Late Silurian||||intrusion|Ludlow|||||||NSW|No|22679||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Intrudes Adaminaby Group. Probably s-type granite.|Biotite granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Baryulgil Serpentinite|1232|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Middle Devonian|||||Late Silurian||||||||No|36961|||||||Serpentinite|metamorphosed basic igneous rock|||N||17-JAN-23
Basal Coal Member|82396|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Alum Mountain Volcanics|342|||Permian|||inferred||Permian|||inferred|||||No|||||||Invalid name. Used in GSNSW seamless geology dataset 2021.|Coal.|organic rich sedimentary rock|||N||17-JAN-23
Basin Creek Formation|1237|||||Yes|Formation, beds|Formal|Other new published name|Described|Nymboida Coal Measures|14438|||Middle Triassic||||deposition|Middle Triassic||||||||No|43881||||||See also other use of  "Basin Creek Formation" in QLD.|Lithic sandstone, claystone, siltstone,pebble conglomerate, coal.|siliciclastic sedimentary rock|||N||19-JUL-23
Basin Tuff|68979|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cisuralian||||eruption|Cisuralian||||||||No|60299|||||||Tuff|igneous rock|||N||17-JAN-23
Bass Point Sandstone|24700|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pleistocene||||deposition|Pleistocene||||||||No|29901|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Basso Suite|35879|Basso|35454|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||Ninnerie Supersuite|69798|Statherian|1699|10|||Statherian|1712|2|||||SA|No|23347||Conor C.|07-APR-00|||Intrudes the Curnamona Group, thus characterising the lower part of Willyama Supergroup. To become part of Kalabity Supersuite [ Reserved10SEP2009]|Granofels, albitic; granite gneiss; derived from felsic volcanic rock and granite; generally Na-altered; A-type.|metamorphosed acid igneous rock|metamorphosed acid igneous rock||Y|A-type|17-JAN-23
Bathurst Granite|1244|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Bathurst Suite|31450|Carboniferous|325|7|isotopic, Rb/Sr|intrusion|Mississippian|330|||||||No|43515||||||Mafic I-type granite. Intrudes the Dunkeld Granite and is intruded by the Tarana Granite. Rb/Sr Age: 325-330Ma. K/Ar ages are younger (~301-310Ma).|Coarse-grained, porphyritic biotite granite, porphyritic granite and granodiorite, aplite|acid intrusive rock|||Y|I-type|17-JAN-23
Bathurst Suite|31450|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bathurst Supersuite|31449|Pennsylvanian||||intrusion|Mississippian||||||||No|42726||||||I-type granitoids.|Granites, adamellite|acid intrusive rock|||Y||08-SEP-23
Bathurst Supersuite|31449|||||Yes|Supergroup|Formal|Other new published name|Described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726|||||||Potassium-rich, oxidised, I-type biotite(+/- hornblende) granite, leucogranite, granodiorite, aplite, porphyry and rare hornblende gabbro and diorite. Commonly medium- to coarse-grained and equigranular to slightly porphyritic.|acid intrusive rock|||Y|I-type|08-SEP-23
Bawley Gabbro|68154|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|60281||||||See also Bawley Microgranite - which supersedes?|Gabbro|basic intrusive rock|||Y||17-JAN-23
Bay Formation|1282|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Crudine Group|4970|||Lower Devonian|405||isotopic, U/Pb-Pb/Pb ion probe|deposition|Lower Devonian|408||isotopic, U/Pb-Pb/Pb ion probe|||1300||No|43515|23170|||||Age: 405 and 408Ma (U/Pb SHRIMP zircon) form 1998 reference.|Consists of interbedded fine to coarse sandstone, pebbly sandstone, siltstone, shale, schist, tuff and rare quartz-feldspar porphyry.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Bayswater Coal Member|1288|Bayswater coal member|1295|||Yes|Member, phase|Formal|Unknown or process pending|Described|Burnamwood Formation|25821|||Late Permian||||deposition|Late Permian||||||||No|29942||||||See also Bayswater Coal.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Baywulla Formation|1299|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Caswell Creek Group|3771|||Namurian||||deposition|Visean|||||100|350|QLD|No|44515|44360||||||Limestone, subgreywacke, conglomerate.|sedimentary rock|||N||31-JUL-23
Beabula igneous intrusions|81159|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|70718||||||Hay 1:250 000 sheet area. No outcrop. Intrude Hay-Booligal basement. Aeromag. character: Circulate 2-5 km diameter anomalies with peak amplitudes of approximately 20?40 nT. Interpreted as ultramafic intrusion with modelled depths approximately between 1300-2300m and magnetic susceptibility of approximately 40-90x10_-3 SI.  Age poorly constrained but now interpreted to be Mesozoic. Updated from GSNSW seamless geology dataset 2021.|Ultramafic intrusions.|ultramafic intrusive rock|||Y||17-JAN-23
Beacon Mudstone|1304|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Permian||||deposition|Devonian||||||||No|44543|44543||||||Mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Beanbah Granite|21206|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Silurian||||intrusion|Silurian||||||||No|43153||Glen R.A.|15-SEP-93||||Poorly exposed biotite granite/granodiorite; coincident with relative magnetic high|acid intrusive rock|||Y||17-JAN-23
Beargamil Subgroup|1321|Beargamil Sub-Group|1320|||Yes|Subgroup|Formal|Variation of published name|Defined|Hervey Group|25947|||Upper Devonian||||deposition|Upper Devonian||||||||No|43507|43507||||||Sandstone, siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Beauchamp Falls Shale Member|25779|Beauchamp Falls Shale|1338|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Caley Formation|28198|||Triassic||||deposition|Triassic|||||||NSW|No|43360|34205||||||Shale|fine grained siliciclastic rock|||N||17-JAN-23
Beckers Formation|1347|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Dalwood Group|28493|||Artinskian|287|2|isotopic, U/Pb-Pb/Pb ion probe|deposition|Asselian||||||130||No|32094||||||Age: 287.1+/-2.4Ma (SHRIMP). Geological Province: Cranky Corner Basin.|Sandstone, bioturbated carbonaceous mudstone/siltstone with 10 m thick basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Beckom South Granite|79400|||||Yes|Formation, beds|Informal|Resvd name published|Described|||||Devonian||||intrusion|Devonian||||||||No|70777||Trigg, S. (GSNSW)|08-APR-16|||Map Sheet: 8229 Ardlethan 1:100k, SI55-10 Narrandera 1:250k. Medium-grained equigranular to porphyritic granite. To be published: In a Quarterly Notes of the GSNSW within the next year.|Medium-grained equigranular to porphyritic granite.|acid intrusive rock|||Y||17-JAN-23
Bedlam Formation|24705|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|37727|||||||||||N||17-JAN-23
Bee Conglomerate Member|1362|Bee Conglomerate|1364|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Chesney Formation|3959|||Lower Devonian||||deposition|Lower Devonian||||||||No|35219|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Beechwood beds|1379|Beechwood Beds|1378|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|41347||||||No longer included in the Macleay Group.|Fissile blue grey mudstone and quartz-mica sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Beetoomba Granodiorite|37870|Beetomba Granodiorite|37631|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|24145||||||See also Beetomba Granodiorite. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende granodiorite: pinkish grey, medium grained; I-type; very altered |acid intrusive rock|||Y|I-type|17-JAN-23
Begargo Leucitite|69599|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Langhian|15.3|.7|isotopic, Ar/Ar, step heat|eruption|Langhian|15.6|.8|isotopic, Ar/Ar, step heat|||||No|61155||||||Cenozoic Igneous Province. Lachlan Valley. Ages from Cohen et al. 2008, leucitite sample 'Begargo Hill, BEH-V'.|Leucitite|basic volcanic rock|||N||17-JAN-23
Begonia Monzogranite|76975|Begonia Adamellite|21217|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Myocum Suite|31523|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology 2021, 2023.|Monzogranite, granite|acid intrusive rock|||Y|I-type|05-SEP-23
Belar Member|81963|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Siding Spring Formation|81962|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Poorly sorted, matrix to clast-supported volcaniclastic mudstone, sandstone, conglomerate and breccia. Inferred lahar deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Belbora beds|1410|Belbora Beds|1409|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Carboniferous|||||Devonian||||||||No|41348|||||||||||N||17-JAN-23
Belford Formation|1417|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Permian||||deposition|Permian||||||||No|43385||||||See also Lexicon.|||||N||17-JAN-23
Belgrave Formation|34752|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|22892|||||||||||N||17-JAN-23
Belimebung Volcanics|21219|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Furongian|489.3|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Furongian|493.3|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Does not crop out. Age previously believed to be close to Ordovician/ Silurian boundary. Changed to Belimebung Igneous Complex, but original name now reinstated. Used in GSNSW seamless geology dataset 2021, but with Cambrian age from SHRIMP U-Pb on zircon dating.|Lithic tuff; volcaniclastic sandstone and conglomerate; andesite; diorite; quartz monzonite.|igneous volcanic rock|medium-coarse grained siliciclastic rock|island arc|N|I-type|17-JAN-23
Bell River Member|30910|Catombal Park Formation|3798|||Yes|Member, phase|Formal|Resvd name published|Defined|Dripstone Formation|30526|||Wenlock||||eruption|Wenlock||||||120||No|6969|23170|Scott M.|11-FEB-97|||Wellington & Euchareena 1:100 000 sheet area.|Felsic volcanics and limestone.|acid volcanic rock|||N||17-JAN-23
Bellarwi Microgranite|81798|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Ludfordian|427.9|3.3|||Sheinwoodian|427.9|3.3||||||No|||Eastlake, M. (GSNSW)|06-JAN-20|||Barmedman 1:100 000 map sheet area 8329, Cootamundra 1:250k, SI55-11.  Used in GSNSW seamless geology 2021, 2023.|Leucocratic equigranular microgranite with minor biotite (5%) and muscovite (3%). Locally contains abundant irregular shaped tourmaline- or muscovite-bearing pegmatite segregations.|acid intrusive rock|||Y||04-SEP-23
Bellata Group|30037|Bellata|21220|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Cisuralian|||||Cisuralian||||||||No|43194|||||||Conglomerate, lithic sandstone, siltstone, claystone, carbonaceous claystone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Bellbird Creek Formation|1423|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Merrimbula Group|11713|||Frasnian||||deposition|Frasnian||||||1740||No|43461||||||Includes invertebrate fossils.|White, red-brown and green-grey, current-bedded, quartzose, fine- to very coarse-grained sandstone, red shale, siltstone and conglomerate. Rare marine microfossils and macroflora. Rare tuffaceous sandstone and intermediate dykes.|siliciclastic sedimentary rock|||N||17-JAN-23
Bellbird Lens|36330|||||Yes|Bed|Formal|Unknown or process pending|Briefly described|Pelton Coal Member|28916|||Guadalupian|||||Guadalupian||||||||No|23540||||||Of Paxton Formation, Greta Coal Measures, Sydney Basin. Different unit to Bellbird Creek Formation.|Siltstone, claystone and fine-grained sandstone with ripple laminations and bioturbation|siliciclastic sedimentary rock|||N||17-JAN-23
Bellbridge Granite|77284|Bellbridge Gneiss|24176|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pridoli||||intrusion|Ludlow||||||||No|68115||||||Omeo Zone. Shown as Bellbridge Gneiss on the Hume 1:50 000 geological map (O'Shea, 1979). Later mapping showed it to be granite, hence its renaming as Bellbridge Granite, G174. GSNSW is still using Bellbridge Gneiss in the seamless geology datasets.|Biotite granite: weakly foliated, medium to coarse grained, with orthoclase phenocrysts up to 3 cm and biotite schlieren; S-type.|acid intrusive rock|||Y|S-type|04-SEP-23
Bellingen Slate|37003|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Nambucca beds|29689|||Permian||||deposition|Permian||||||1300||No|44450|||||||Dark micaceous slate, lithofeldspathic sandstone, minor conglomerate.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Bells Creek Volcanics|24709|Bells Creek Rhyolite|1428|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mumbil Group|13411|||Ludlow||||eruption|Wenlock||||||2400||No|43515|43517|||||Defining ref (Dubbo Explan Notes, 1999) does not mention underlying unit. Tanwarra Shale is from previous reference. Originally named Bells Creek Rhyolite. Intruded by both Bathurst and Tarana Granites.|Rhyolite, rhyolitic tuff and lava, quartz feldspar porphyry, tuffaceous sandstone, breccia; minor actinolite schist, marble|acid volcanic rock|||N||17-JAN-23
Belmont Coal Member|77380|||||Yes|Member, phase|Invalid|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021. Invalid name. Revived name Late Permian Belmont Conglomerate Member, Sydney Basin has priority.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east.|organic rich sedimentary rock|||N||17-JAN-23
Belmont Conglomerate Member|1432|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Croudace Bay Formation|4945|||Lopingian||||deposition|Lopingian||||||||No|43447||||||This Member was dropped [1999]. Formerly of Croudace Bay Formation, Boolaroo Subgroup, Newcastle Coal Measures. Name revived ?2015. Used in GSNSW seamless geology dataset 2021. Note: the Early Permian Belmont Coal Member of the Gunnedah Basin is unrelated.|Conglomerate and sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Belmore Granite|1435|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Tom Groggin Suite|18286|Silurian||||intrusion|Silurian||||||||No|60086|||||||S-type, mafic, unfractionated granite|acid intrusive rock|||Y||17-JAN-23
Belmore Volcanics|83467|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Burdigalian|19.5|.4|isotopic, K/Ar||Aquitanian|20.8|.4|isotopic, K/Ar|||||No|||||||Invalid name. Not related to Belmore Granite. Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Basal massive microvesicular trachyte (>50m) overlain by moderately vesicular porphyritic trachyte (>50 m). Overlain by highly vesicular porphyritic trachyte (>110m) capped by massive highly porphyritic trachyte (>250m).|intermediate igneous rock|basic volcanic rock||N||17-JAN-23
Belougery Split Rock Member|81954|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Macha Formation|81953|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Orange to white weathering, flow foliated, porphyritic trachyte; contains late, interstitial quartz.|intermediate volcanic rock|||N||17-JAN-23
Beloura Tank Limestone Member|1437|Beloura Tank Limestone|1439|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baledmund Formation|954|||Lower Devonian||||deposition|Lower Devonian|||||||NSW|No|35287|41528||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Belowra Granodiorite|30472|Belowra Granite|26382|||Yes|Formation, beds|Formal|Variation of published name|Described|||Belowra Suite|30471|Lower Devonian||||intrusion|Late Silurian||||||||No|22815|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Belowra Suite|30471|Belowra Granite|26382|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Belowrie Formation|24178|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||900|NSW|Yes|40328|40328|G.Bradley|06-JUN-74|NSW SNSC|11-OCT-74||Shales with a prominent andesitic to basaltic tuff and lava member near the middle of the formation.|siliciclastic sedimentary rock|||N||17-JAN-23
Belubula Limestone|1444|Boonderoo Limestone Member|24750|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cliefden Caves Limestone Subgroup|31725|||Katian||||deposition|Katian||||||290|NSW|Yes|38219|38219|Webby B.D., Packham G.H.|12-JAN-82|Russell, T.|12-FEB-82|Invalid name. Definition card 1982. Intended to replace the invalid name Boonderoo Limestone Member. Modified after Carne & Jones (1919) "Belubula Limestone Belt", but disused for over 50 years until 1982. Different unit from  Belubula Shale.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Belubula Shale|1445|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cudal Group|4974|||Ludlow||||deposition|Ludlow||||||435||No|43515||||||Different unit from Belubula Limestone. Name introduced 1965, when Belubula Limestone had been disused for over 40 years.|Consists of brown, red and grey shale; sandstone. Unit can be sub-divided into four informal units.|siliciclastic sedimentary rock|||N||17-JAN-23
Belvedere Formation|1446|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Middle Devonian||||deposition|Middle Devonian||||||||No|43507|43507||||||||||N||17-JAN-23
Bemboka Granodiorite|1448|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Bemboka Suite|30473|Lower Devonian||||intrusion|Lower Devonian||||||||No|40646|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Bemboka Suite|30473|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Bemm River beds|70035|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|22857|||||||||||N||17-JAN-23
Ben Boyd Formation|1451|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Merrimbula Group|11713|||Famennian||||deposition|Frasnian||||||850|NSW|No|42158||Larkin, P. (UNSW)|31-DEC-75|||Previously included in Worange Point Formation.|Fluvial to marine sandstone, conglomerate, siltstone, quartzite, shale|siliciclastic sedimentary rock|||N||17-JAN-23
Ben Bullen Igneous Complex|30745|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43363||||||Precursor to Ben Bullen Gabbro? Mapped as unnamed diorite/gabbro pluton on Bathurst 1:100k sheet, but corresponds with this unit on Glen Alice 1:50k sheet. See also informal Ben Bullen Gabbro. GSNSW consider this name current in 2011.|Small plutons of hornblende diorite, gabbro and dolerite. Irregular areas of olivine norite, and gabbroic anorthosite. Rare limestone blocks xenoliths at Ben Bullen.|basic intrusive rock|||Y||17-JAN-23
Bena Monzodiorite|33192|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||intrusion|Early Silurian||||||||No|24417||Scott M.|10-NOV-98|||Forbes 1:250 000 sheet area.|Grey-pink, glomero/porphyritic biotite, quartz monzodiorite.|intermediate intrusive rock|||Y||17-JAN-23
Bendemeer Monzogranite|41051|Bendemeer Adamellite|26384|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Moonbi Suite|29249|Lower Triassic||||intrusion|Lower Triassic|247.5|1.6|isotopic, Rb/Sr|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Within the Moonbi Supersuite. Lith description, age updated from GSNSW seamless geology 2023.|Grey to pale grey, coarse-grained, equigranular to porphyritic, biotite-hornblende (-pyroxene) monzogranite, with minor leucomonzogranite and rare granodiorite.|acid intrusive rock|||Y|I-type|23-AUG-23
Bendemeer Supersuite|38325|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Lower Triassic|||||Late Permian||||||||No|61773||||||Name may have been abandoned?|||||Y|I-type|17-JAN-23
Bendethera Limestone Member|1466|Bendethera Limestone|1467|||Yes|Member, phase|Formal|Resvd name published|Defined|De Drack Formation|5292|||Ludlow|||biozone|deposition|Wenlock|||biozone|||100|NSW|Yes|39028|40276|Owen M.||Russell, T.|14-SEP-82|Previously known as Bendethera Limestone and included in Long Flat Volcanics, but never defined.|Massive, white to grey, coarsely recrystallised limestone. Fossils very rare. Some thin tuff beds and nodular limestone horizons occur rarely.|carbonate sedimentary rock|||N||17-JAN-23
Bendick Formation|1468|||||Yes|Formation, beds|Formal|Other new published name|Defined|Beargamil Subgroup|1321|||Frasnian||||deposition|Frasnian||||||350||No|43507|43507|||||Part of the Hervey Group.|Red, partly planar/ripple x-lam.siltst.+ fine-gr.sst, tog. with subordinate med. to thick bedded, poorly sorted, massive polymictic conglom.+ pebbly coarse-gr. lithic-qtz. to qtz-lithic sst; vein qtz pebbles+minor vol|siliciclastic sedimentary rock|||N||17-JAN-23
Bendoc Group|1474|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Hirnantian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||700||No|42294||Glen D., Lewis P.|10-SEP-90|||Murrindal area. MITTA MITTA 1:50 000. Geological Survey of Victoria map code: Ob. Now extended north to Cobar region [2016]. Proposed in 2018 that the New Country Sandstone, Akuna Mudstone, Gungoandra Siltstone and Willandra Sandstone are reassigned from the Bendoc Group to Margules Group. GSNSW seamless geology 2021 confirms reassignment of Gungoandra Siltstone and Willandra Sandstone, but not Akuna Mudstone. Unknown if GSV proceeded with reassignement of New Country Sandstone.|Black shale and slate, siliceous mudstone, chert, siltstone, fine grained quartz sandstone to quartzite; deep marine, massive to laminated, commonly graptolitic.|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||11-SEP-23
Bendora Granodiorite|25781|Bendora Granite|1475|||Yes|Formation, beds|Formal|Variation of published name|Defined|||McKeahnie Suite|31610|Late Silurian||||intrusion|Late Silurian|||||||ACT|No|36441|45147|||||See also Bendora Granite. This name included in GSNSW 2013 list of current names.|Granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Benelabri Formation|41275|||||Yes|Formation, beds|Formal|Variation of published name|Described|Coogal Subgroup|30031|||Lopingian||||deposition|Lopingian|258.05|.08|isotopic, U/Pb-Pb/Pb, TIMS|deposition||35||No|50629||||||Used in GSNSW seamless geology dataset 2021.|Interbedded claystone, siltstone and fine-grained quartzose sandstone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||27-APR-23
Bengalla Coal Member|26385|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Sydney Basin.|Coal: bright and dull & bright banded, fusainous penny bands, minor calcite; grey-brown claystone bands, carbonaceous shale, fine- to medium-grained grey sandstone - sporadically silty, coaly shale|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bengoro Ridge Formation|70127|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wana Karnu Group|70131|||Middle Devonian|||inferred, biostratigraphic correlation|deposition|Lower Devonian|||inferred, biostratigraphic correlation|||||No|66918|66623|Sharp, T.|10-MAR-06|||To be used in the Broken Hill Region.|White to buff quartz sandstone, pebbly sandstone, conglomerate, and rare siltstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Benjeroop Granite|83414|Bunjeroop pluton|83408|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Middle Devonian|||inferred||Middle Devonian|||inferred|||||No|73505||||||Used in RefID 73505 Moore (2005). G656. Named after  Benjeroop Parish and Benjeroop 1, which intersected the granite. Aligned in the foliation of the Governor Fault system ~30 km N of Kerang.  A 100 nT high, showing magnetic zoning. A 10 micrometre/second/second gravity low on a regional gradient. Part of the Lalbert Batholith. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - benheroop pluton.|Granite. Interpreted I-type.|acid intrusive rock|||Y|I-type|28-AUG-23
Bennetts Creek Volcanics|1489|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Llandovery||||eruption|Llandovery|||||||NSW|No|33780|35109||||||Felsic volcanics, shales and limestone lenses, conglomerates.|acid volcanic rock|||N||17-JAN-23
Bennys Top Limestone|35363|Bennys Tops Limestone Member|30308|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Glen Ward beds|37292|||Middle Devonian||||deposition|Lower Devonian||||||||No|23185||||||Variations Benny's Tops limestone, "Bennys Tops limestones", Benny's Top limestone all said to be of Glen Ward beds (ie Member rank)|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Benolong Volcanic Suite|83967|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||||Lower Jurassic|||||Upper Triassic||||||||No|||Simpson, B. (GSNSW)|28-AUG-23|||Named after the locality of Benolong (add geographic coordinates), 22 km south-east of Dubbo (Dubbo 1:250,000 map sheet area. Outcrop extends from 2 km south of Dubbo in the north (Dubbo 1:100,000 map sheet area) to 5 km south of Wambangalang in the south (Wellington 1:100,000 map sheet area). The majority of recognised outcrops lie within or adjacent to an area defined by Benolong Road, Nubingerie Road, Eulandool Road, and Obley Road.|Trachyte, comendite, rhyolite.||||N||15-SEP-23
Benwerrin Diorite|23378|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|42313|42313|H.Basden|22-APR-85|||Name approved by R.Staines|Diorite|intermediate intrusive rock|||Y||17-JAN-23
Berendebba Granite|33412|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Emsian||||intrusion|Emsian||||||||No|24417||Wallace D.A.|27-APR-99|||Forbes 1:250 000 sheet area.|Granite|acid intrusive rock|||Y||17-JAN-23
Beresfield Coal Member|77602|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Coal: dull and bright bands, calcite veinlets and fusain lens; carbonaceous mudstone, light brown claystone|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bergalia Formation|1498|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Chattian||||deposition|Rupelian||||||20||No|43465||||||Overlain by Moruya Province Volcanics (Coila Basalt). In Southeastern NSW.|Gravel, sand, clay|siliciclastic sedimentary rock|||N||17-JAN-23
Berkeley Latite Member|1504|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|29900||||||Wollongong area. Not related to Berkley Formation, Wellington area. Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Latite|intermediate volcanic rock|||N||01-SEP-23
Berkley Formation|29661|Mandagery Park Formation|11156|||Yes|Formation, beds|Formal|Resvd name published|Defined|Gregra Group|7789|||Lochkovian||||deposition|Lochkovian||||||1200||No|43640|23170|Raymond, O.L.|30-AUG-95|||Wellington. To replace Mandagery Park Formation. Not related to Berkeley Latite Member, Wollongong area.|Well bedded, lithic, volcaniclastic sandstone with minor siltstone, shale and fossiliferous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Berrico Creek Formation|1516|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||300||No|32671|44244||||||Grey and brown lithic arenite, mudstone; minor conglomerate, discontinuous limestone|siliciclastic sedimentary rock|||N||17-JAN-23
Berridale Granite|1517|Berridale granite|1519|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|43344||||||Now referred to as the Berridale Batholith.|Granite|acid intrusive rock|||Y||17-JAN-23
Berridong Siltstone|1520|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||400|NSW|No|43476|40328||||||Siltstone, lithic sandstone, phyllite.|siliciclastic sedimentary rock|||N||17-JAN-23
Berrigan Granite|1524|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Silurian||||intrusion|Silurian||||||||No|44340|||||||Non-foliated coarse to very coarse pink biotite granite|acid intrusive rock|||Y||17-JAN-23
Berry Siltstone|27336|Berry Formation|1526|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Shoalhaven Group|16844|||Guadalupian|264|||deposition|Guadalupian|265|||||550||No|45006|||||||Indistinct bedding to flat-bedded, mid- to dark-grey siltstone and very fine feldsphathic litharenite, interbedded with thin, fine-grained sandstone lenses.|siliciclastic sedimentary rock|||N||30-AUG-23
Bethanga Gneissic Granite|37798|Bethanga Gneiss|1544|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lochkovian||||intrusion|Ludlow|419.9|3.4||||||No|23309||||||G175. Seems to be preferred GSV name for this unit. See also Bethanga Gneiss, Bethanga Granite (preferred by GSNSW).|Coarse-grained, well-foliated, heterogeneous cordierite-garnet granite: quartz, perthitic K-feldspar, plagioclase, reddish-brown biotite, muscovite, cordierite, and garnet, and accessory zircon, apatite, ilmenite and sillimanite; enclaves common.|acid intrusive rock|foliated metamorphic rock||Y|S-type|27-SEP-23
Bethungra Formation|28365|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Lower Devonian||||eruption|Lower Devonian|||||500|1000|NSW|Yes|35608|22638|Fitzpatrick K. after B.L. Schmidt||Hawke, J.|20-FEB-79|Possibly faulted against the Frampton Volcanics. Defined 1979. Redefinition published 1995.|Dacite, rhyolite, siltstone and sandstone.|acid volcanic rock|||N||17-JAN-23
Beugamel Sandstone|21242|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Trundle Group|29079|||Lower Devonian||||deposition|Lower Devonian||||||180||No|43441||Sherwin L.|13-AUG-93|||Narromine, Forbes 1:250 000 sheets. Of Wallingalair Group in Narromine 1:250 000 sheet area.|Medium to coarse-grained, thickly bedded, dominantly quartzose arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Bexley Rhyolite Member|37908|Bexley Rhyodacite|30058|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Clifden Formation|4147|||Serpukhovian||||eruption|Serpukhovian|327|3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|24605||Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03||Rhyolite|acid volcanic rock|||N||17-JAN-23
Bibblewindi Coal Member|79325|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||4|10|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|11-FEB-16|||Occurs in three areas over the Mullaley Sub-basin where the Maules Creek Formation greater than 60m thick. The areas are: - 1/ north and south of Narrabri, 2/ west of Werris Creek, and; 3/ south of Mullaley (650 square kilometres). Proposed publicaiton: AJES.|Coal, dull with chonchoidal fractures near base to dull with minor bright bands towards the top. Comprises a single seam in type section. Coal is free from stone bands in type section.|organic rich sedimentary rock|||N||17-JAN-23
Bickham Formation|1574|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Kazanian||||deposition|Ufimian||||||||No|43407|||||||Sandstones and conglomerates.|siliciclastic sedimentary rock|||N||30-AUG-23
Biddabirra Formation|28129|Biddabirra Beds|1578|||Yes|Formation, beds|Formal|Variation of published name|Defined|Amphitheatre Group|381|||Pragian||||deposition|Lochkovian||||||4000|NSW|No|38292|41821||||||Medium to thick bedded, massive or graded and parallel-laminated, moderately to poorly sorted, fine to medium-grained, quartzose to lithic-quartz sandstone packets, interbedded with thin bedded siltstone, mudstone and fine sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Biddi Granodiorite|25783|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Ingebyrah Suite|8689|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|33782|41905||||||Cordierite biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Bideroie Ignimbrite Member|40754|Bideroie|39897|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Pennsylvanian|||inferred|eruption|Pennsylvanian|||inferred|||55|NSW|Yes|50613|50613|Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|Volcanic member of the Kaputar package (informal grouping of stratigraphically recognisable distinctive, mappable units).|Beige, pink or brown, unwelded to slightly welded ignimbrite, with quartz, plagioclase, K-feldspar, biotite, opaque minerals and rare pumices. Groundmass micropoikilitic or spherulitic.|acid volcanic rock|||N||17-JAN-23
Big Ben Coal Member|77600|Big Ben seam|28366|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Alnwick Formation|21118|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Coal: dull and bright with many stoney bands, carbonate-healed cleats; coaly shale, carbonaceous mudstone bands, light-brown soft claystone, very fine-grained sandstone parting downseam|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Big Box Hill Syenite|29517|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Ordovician||||intrusion|Upper Ordovician|||||||NSW|No|43642||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Intrudes the Weemalla Formation.|Syenite|intermediate intrusive rock|||Y||17-JAN-23
Big Bull Gabbro Phase|82356|Big Bull Gabbro|37379|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Sheep Station Creek Complex|28997|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Variation on Big Bull Gabro used in 2017 and earlier.|Massive, medium-grained olivine gabbro, quartz gabbro, and pegmatite gabbro.|basic intrusive rock|||Y|I-type|29-AUG-23
Big Hill Creek Granite|82358|Gundle Granite|7897|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Triassic|||inferred||Upper Triassic|||inferred, intrusive relationship|intrusion||||No|71628|||||||Porphyry and leucomonzogranite.|acid intrusive rock|||Y||16-AUG-23
Big Hole Formation|24181|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Upper Devonian||||deposition|Upper Devonian||||||140|NSW|Yes|39028|40276|M.Owen|02-APR-81|Russell, T.|14-SEP-82|For use in the Araluen 1:100 000 sheet.|Quartz, lithic sandstone some interbedded siltstone and shale|siliciclastic sedimentary rock|||N||17-JAN-23
Big Jack Granite|29201|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||Lewis P.|21-DEC-90||||Medium biotite granite|acid intrusive rock|||Y||17-JAN-23
Big Sink beds|34932|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Quaternary||||deposition|Zanclean||||||||No|22952||||||Consists of: Big Sink unit and conglomerate unit.|Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Big Table Top Formation|1601|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Maitland Group|11039|||Permian||||deposition|Permian||||||||No|39288||||||Lith desc from GSNSW seamless geology 2023.|Basal poorly sorted pebble to cobble paraconglomerate, fining-up through coarse- to medium-grained sandstone, minor silty sandstone beds are bioturbated.||||N||29-AUG-23
Bigga Granite|1608|Bigga Adamellite|37424|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Hovells Suite|69895|Pridoli||||intrusion|Wenlock|430|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|34544||||||Intrudes the Adaminaby Group and Streamville Granodiorite. Previously of Wyangala Suite. Stated to be of Hovells Suite on GOULBURN 1"250K map sheet (2008).|Blue-grey, coarse-grained, massive to protomylonitic, porphyritic, often megacrystic biotite granite. High K, Th and U radioelement response.|acid intrusive rock|||Y|S-type|17-JAN-23
Biggam Tonalite|1617|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Bijerkerno Metasediments|28168|Bijerkerno Beds|27338|||Yes|Formation, beds|Formal|Variation of published name|Defined|Paragon Group|14860|||Statherian|1642|5|inferred, overlying unit|deposition|Statherian|1657|4|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||700|NSW|No|38969|39662|||||Olary / Broken Hill Province. Interpreted to be the equivalent of the Mooeulooloo Formation in the Olary Domain. Its dating indicates a temporal similarity with Mount Isa Group (Qld.) Lower part of unit sampled twice and tuffaceous sediment gives depositional ages: 1657+/-4 Ma, 1655+/-4 Ma U/Pb SHRIMP.|Variable graphitic sediments with regular, alternating psammite-rich and phyllitic intervals. Psammite, psammopelite, pelite.|metasedimentary siliciclastic rock|acid volcanic rock|continental rift|N||17-JAN-23
Billabong Creek Formation|38194|Billabong Creek Limestone|1630|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Northparkes Volcanic Group|35020|||Eastonian||||deposition|Darriwilian||||||320||No|23736||||||See also Billabong Creek Limestone, still in use both inside and outside GSNSW. [CEB Dec2012]. Previously of the Northparkes Group. Of Northparkes Volcanic Group in GSNSW seamless geology dataset 2023. Includes rare interbedded basaltic andesite lavas and volcaniclastic sediments assigned to the Goonumbla Volcanics (Crawford et al., 2007, RefID 63283, discussing Billabong Creek Limestone).|Limestone, fossiliferous limestone, oolitic limestone, mudstone; mudstone and fine-grained volcaniclastic rocks.|carbonate sedimentary rock|||N||09-JUN-23
Billabong Creek granodiorite|80456|||||Yes|Formation, beds|Invalid|Other new published name|Briefly described|||Jawbone Creek granodiorite suite|80462|Late Silurian|||inferred, geological correlation||Late Silurian|||inferred, geological correlation|||||No|70718||||||Subcrop, Deniliquin 1:250 000 map sheet area.|granodiorite inferred.|acid intrusive rock|||Y|I-type|17-JAN-23
Billilingra Dacite Member|21249|||||Yes|Member, phase|Informal|Resvd name published|Defined|Rothlyn Formation|24479|||Lower Devonian|407|3|isotopic, K/Ar|eruption|Late Silurian||||||600|NSW|Yes|49690||Henderson G.A.M.|02-AUG-85|||Appears in BMR Record 1990/35. GS NSW appears to have reduced this unit to informal status.[2013 State list. CEB].|Crystal-rich, greenish-grey, hornblende-biotite dacitic crystal tuff.|acid volcanic rock|||N||17-JAN-23
Billy Brook Formation|24721|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Dalwood Group|28493|||Artinskian||||deposition|Sakmarian|285.4|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||100||No|46849||||||Geological Province: Cranky Corner Basin.|Sandstone, siltstone, claystone, conglomerate.|siliciclastic sedimentary rock|||N||30-AUG-23
Billy Creek Formation, Wirrealpa Limestone, Lake Frome Group, Yarrawurta Shale|83130|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Moralana Supergroup|26314|||Middle Cambrian|||inferred||Early Cambrian|||inferred|||||No|||||||Informal grouping used in surface/subsurface unit interpreted for GA Solid Geology layer. Source: unit Eo13  Cowley, W.M. (compiler).2008. Solid Geology South Australia, Neoproterozoic to Ordovician Timeslice, 1:2 million. Arrowie Basin; Stuart Shelf. Part of Moralana Supergroup. Sequence Set Cambrian-2 and 3 of Adelaide Geosyncline and Stuart Shelf. 523+/-2Ma|Shallow marine to terrestrial redbeds, peritidal to marine limestone; tuff|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Billygoat Hill Complex|82359|Billygoat Hill Monzonite|1656|||Yes|Group, Suite|Formal|Variation of published name|Described|||Highlands Suite|73960|Lower Triassic|250|5|isotopic, K/Ar||Guadalupian||||||||No|71628||||||GSNSW seamless geology 2023 show this unit as Late Permian and does not include the K-Ar dates (of unspecified meaning), which range from mid-Permian to Early Triassic.|Comprises early stocks of porphyritic, fine biotite-hornblende-cpx-(opx) quartz monzonite to monzogranite, with later more felsic, weakly porphyritic to inequigranular biotite-hornblende-(cpx) quartz monzonite to monzogranite. I-type.|acid intrusive rock|||Y|I-type|01-SEP-23
Billyrambija Dolerite Member|79193|||||Yes|Member, phase|Formal|Variation of published name|Described|Crookwell Basalt|35344|||Paleogene||||intrusion|Paleogene||||||||No|68592||||||These rocks are also referred to as Billyrambija Dolerite in the same publication (RefID 68592).|Black, massive, porphyritic coarse-grained dolerite sill.|basic intrusive rock|||Y||17-JAN-23
Billyrimba Leucomonzogranite|38268|Billyrimba Leucoadamellite|1660|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bolivia Range Suite|73987|Middle Triassic||||intrusion|Middle Triassic|241.4|1.2||||||No|23811||||||Within the Stanthorpe Supersuite.|Medium-coarse grained, equigranular, buff coloured biotite leucogranite.|acid intrusive rock|||Y|I-type|18-AUG-23
Billys Creek Granodiorite|82361|Billys Creek Tonalite|1662|||Yes|Formation, beds|Formal|Variation of published name|Described|||Billys Creek Suite|82360|Carnian|231.8||isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation|Carnian||||magmatic crystallisation||||No|71628|||||||Fine- to medium-grained, commonly porphyritic, hornblende-biotite tonalite, granodiorite and monzogranite. I-type. Lithology and mineralogy described thoroughly.|acid intrusive rock|||Y|I-type|23-AUG-23
Billys Creek Suite|82360|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Carnian|231.8||isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation|Carnian|236.5|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No||||||||Granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Billys Lookout Granite|27107|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|427|2|||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76||Granite (perthite, microcline, quartz, minor andesine, biotite).|acid intrusive rock|||Y||17-JAN-23
Bilpa Conglomerate|41598|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mutawintji Group|72958|||Late Cambrian||||deposition|Late Cambrian||||||||No|50618|66623|||||Spelling of parent Group has changed.|Very poorly sorted, pebble to boulder polymictic conglomerate with rounded to angular clasts and carbonate-rich cement.|siliciclastic sedimentary rock|||N||17-JAN-23
Bimbadeen Basalt|82362|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Allandale Formation|279|||Permian|||||Permian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Basalt with interbedded conglomerate lenses, basalt has sporadic amygdules variably infilled with secondary minerals.|basic volcanic rock|sedimentary rock||N||21-JUL-23
Bimberi Leucogranite|26254|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Silurian||||intrusion|Late Silurian|||||||NSW|No|36443|45147|D.Wyborn|10-SEP-76||||Leucogranite, leucomonzogranite, aplite|acid intrusive rock|||Y|S-type|17-JAN-23
Bimbimbie Granodiorite|1669|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Currowong Suite|5085|Lower Devonian|414.8|3.7|isotopic, Rb/Sr|intrusion|Late Silurian|417.3|4.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33852|41905|||||Rb/Sr Age: 414.8+/-3.7 Ma.  See also the informal Bimbimbie Granite. Age and lithology updated from GSV data (HG, Dec 2005). See also  RefID 67060 p505.|Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Binda Granite|1674|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Crooked Corner Suite|69868|Pridoli||||intrusion|Ludlow||||||||No|42726||Chappell et al., Pogson D.|11-NOV-99|||Formalized on CROOKWELL 1:100 000 sheet (2000).|Foliated to massive, biotite granite, biotite tonalite, biotite-quartz monzonite, and muscovite-biotite granodiorite, albite granite, with miarolitic cavities.  Intruded by dykes of dolerite, microgranite, aplite, rhyolite, and veins of quartz.|acid intrusive rock|||Y||17-JAN-23
Binda Granite, Kings Vale Granite|42001|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Foliated to massive biotite granite, biotite tonalite, biotite quartz monzonite, muscovite-biotite granodiorite, albite granite, aplite; with miarolitic cavities|acid intrusive rock|||Y||17-JAN-23
Bindaboo Coal Member|77065|Bindaboo seam|38303|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Leloma Formation|23722|||Late Permian||||deposition|Late Permian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Formation.|Coal splits separated by stone bands (coal is 50%), high- and medium-volatile bituminous coal|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bindaboo seam|38303|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Gloucester Coal Measures|7452|||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Basin Coal Measures. To be replaced by the Bindaboo Coal Member [GSNSW July-2012].|Coal|organic rich sedimentary rock|||N||17-JAN-23
Bindawalla Ignimbrite Member|70455|Bindawalla|41415|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian|315|||||3||No|62095|62095|||||In the Werrie block/Tamworth Belt. Age: <315.3Ma.|Red to green unwelded ignimbrite containing rare phenocrysts of quartz, plagioclase, biotite and opaque minerals. Pumice fragments, random shards, undeformed vesicles are common. Groundmass chloritic and zeolitic.|acid volcanic rock|||N||17-JAN-23
Bindo Creek Formation|39363|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Devonian||||deposition|Silurian||||||||No|24123|||||||||||N||17-JAN-23
Bindogandri Granite|28368|Bumberry Granite|2940|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bindogandri Suite|31552|Middle Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76|I-type or A-type?, GSNSW says of  Boggy Plains Supersuite. Curiously, although GSNSW has placed the Bindogandri Granite directly in the Boggy Plains Supersuite (2012 State list), the Wirrinya Granite is still shown as part of the Bindogandri Suite.|Pink, fine to medium grained, granophyric granite and aplite; miarolitic cavities in some parts|acid intrusive rock|||Y||17-JAN-23
Bindogandri Suite|31552|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Boggy Plains Supersuite|34323|Middle Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Curiously, although GSNSW has placed the Bindogandri Granite directly in the Boggy Plains Supersuite (2012 State list), the Wirrinya Granite is still shown as part of this Suite.|Granite|acid intrusive rock|||Y||17-JAN-23
Bindook Group|69879|Bindook Volcanic Complex|1684|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Pragian|414.4|2.9|isotopic, U/Pb-Pb/Pb ion probe|eruption|Lochkovian|||inferred, biostratigraphic correlation|||3500||No|64238||Thomas. O. (GSNSW)|14-DEC-05|||Used in Eastern Australia 1:1million Surface Geology dataset.  Proposed for new GOULBURN 1:250 000 sheet (2006) to replace Bindook Volcanic Complex of previous publications/maps [12/05 PP].  Basal age from faunas in the Windellama Limestone Member at the base of the Tangerang Formation (also base of Group). Middle SHRIMP dates from Newacres Ignimbrite Member, Quialigo Volcanics (Wilde, 2002). Minimum age from Barralier Ignimbrite at the top of the Group (Black, 2006).|Rhyolitic to dacitic welded ignimbrite and lava, turbiditic quartzose and volcanic sandstone and siltstone; minor conglomerate, limestone blocks, felsic volcanic breccia and intrusives.|acid volcanic rock|||N||17-JAN-23
Bingara Volcanics|69825|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Delungra Volcanic Suite|69824|Early Miocene|23.9|.3|isotopic, K/Ar|eruption|Rupelian|30|2.8|isotopic, U/Pb-Pb/Pb ion probe|||60|NSW|Yes|63347|63347|Dawson, M. (GSNSW)|21-NOV-05|||Interfingers with Derra Derra Volcanics. Age information from GSNSW seamless geology dataset 2021. Min age based on one sample. U-Pb SHRIMP zircon ages obtained from the Monte Christo diamond mine near Bingara yield ages >30 ? 2.8 Ma which may reflect some inheritance.|Alkaline olivine basalt and basanite lavas with minor volcaniclastic rocks and diamond-bearing gravels.|basic volcanic rock|||N||17-JAN-23
Binghams Back Formation|70031|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Campbells Group|3427|||Lochkovian|411|4|inferred, overlying unit|deposition|Ludlow|423.7|2.5|inferred, underlying unit|||1200|NSW|No|64238||Thomas, O. (GSNSW)|31-JAN-06|||Named for a creek in NE of CROOKWELL 1:100 000 sheet.|Grey to buff, fine- to coarse-grained quartzose to quartzo-feldspathic sandstone interbedded with green-grey siltstone and mudstone. Rare vitric tuff. Two subunits: sandstone with siltstone/mudstone; and siltstone/mudstone lesser sandstone.|siliciclastic sedimentary rock|||N||05-SEP-23
Bingie Bingie Gabbro|1689|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Bingie Bingie Suite|30469|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Gabbro, gabbroic diorite|basic intrusive rock|||Y||17-JAN-23
Bingie Bingie Suite|30469|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|22815|||||||Gabbro, gabbroic diorite|basic intrusive rock|||Y||17-JAN-23
Bingie Grumble Formation|81956|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Orange to white-weathering, flow-foliated, porphyritic trachyte, Contains bright green aegerine, olive green wilkinsonite and feldspathoids. Minor autobreccia.|intermediate volcanic rock|||N||17-JAN-23
Bingleburn Formation|1690|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Visean||||deposition|Tournaisian||||||||No|31228|||||||||||N||17-JAN-23
Bingleburra Formation|1691|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Tournaisian||||deposition|Tournaisian||||||375||No|43432|44244|||||Is a NSW unit and does not extend into Queensland [advice from IWW JUL-2020].|Brown and grey, thinly bedded mudstone and siltstone with thin interbeds of lithic sandstone, oolitic and crinoidal limestone|siliciclastic sedimentary rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Binna Burra Rhyolite|1700|Binna Burra rhyolite|1701|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lamington Volcanics|10120|||Early Miocene|20.5|||eruption|Early Miocene|23.9|.2|isotopic, K/Ar|||||No|44871|44871|||||Defined 1962. Numerical ages form 1993.|Rhyolite|acid volcanic rock|||N||31-JUL-23
Biraganbil Formation|30648|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Chesleigh Group|30854|||Pridoli||||deposition|Ludlow||||||1500||No|22529|23170|Meakin S.|18-DEC-96|||Mudgee area.|Quartz-lithic, feldspar-lithic and quartz sandstone, siltstone, slate, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Bird Cage Bed|35167|||||Yes|Bed|Informal|Other new published name|Mentioned|Fern Valley coal seam|35121||||||||||||||||No|23055||||||Of Newcastle Coal Measures.|||||N||17-JAN-23
Bird Flat Volcanic Member|38921|Bird Flat Member|33401|||Yes|Member, phase|Formal|Variation of published name|Defined|Kadungle Volcanics|24325|||Lower Devonian||||eruption|Lower Devonian||||||300||No|50299|24417|||||Reserved as Bird Flat Member by L. Sherwin (09/09/1996).|Volcanics|igneous rock|||N||17-JAN-23
Birdwood Formation|28370|Birdwood beds|1725|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Frasnian||||deposition|Frasnian||||||1550||No|42547|22736||||||Volcaniclastic sandstone, siltstone, mudstone, ash-fall tuff and rare basalt.|medium-coarse grained siliciclastic rock||forearc|N||18-SEP-23
Birken Head Rhyolite|77319|||||Yes|Member, phase|Processing pending|Variation of published name|Briefly described|Willuri Formation|39257|||Pennsylvanian||||eruption|Serpukhovian|324|3||||||No|68005||||||Associated with at least 11 ignimbrite members of the Willuri Formation. Is this a replacement of Birken Head Volcanic Member (unit no. 39258)?|Red-green, glassy to partly pumiceous, unwelded ignimbrite. Also purple, grey to beige rhyolitic ignimbrites, welded and unwelded, pumiceous to fine-grained to glassy to spherulitic; rhyolite lava; crystal-rich resedimented pyroclastics.|acid volcanic rock|||N||17-JAN-23
Birken Head Volcanic Member|39258|Birken Head|36744|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Kasimovian|||inferred|eruption|Serpukhovian|315||inferred|||650|NSW|Yes|50613|50613|Roberts J.|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Reserved as Birken Head.  Volcanic member of the Tulcumba package (informal grouping of stratigraphically recognisable distinctive, mappable units).  Early Namurian to Early Stephanian age range indicated by NSWGS GIS data (2005). Used in GSNSW seamless geology dataset 2021.|Rhyolitic and lesser dacitic ignimbrite, rhyolite lava|acid volcanic rock|||N||17-JAN-23
Birrimba Member|81175|||||Yes|Member, phase|Formal|Other new published name|Defined|Narrama Formation|73364|||Lower Ordovician|||inferred, lithostratigraphic correlation||Lower Ordovician|||inferred, lithostratigraphic correlation||||NSW|No|72296||||||New name, after Birrimba property and homestead: defined in this study (Gilmore, in Gilmore et al., 2018). Type locality designated on the Narringa property at Lat. -31.4027 degrees, Long. 146.9081 degrees.|Red-grey, massive to finely laminated, quartz-hematite +/- magnetite units; white quartz veining common. Contains euhedral pyrite cubes <3mm, commonly weathered or removed entirely, leaving vughs. Also a white to beige, massive silica-pyrite rock.|acid volcanic rock|sedimentary rock||N||17-JAN-23
Bishopthorpe Dolerite|36147|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bishopthorpe Suite|74311|Emsian||||intrusion|Pragian||||||||No|50234||Scott M. GSNSW, Orange. scottm@minerals.nsw.gov.au|10-JUL-01|||GOULBURN 1:250 000 sheet area.|Dolerite and gabbro with ophitic Ti-augite and plagioclase|basic intrusive rock|||Y||17-JAN-23
Bishopthorpe Suite|74311|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Devonian|||||Devonian||||||||No|64238|||||||Green-grey, massive, equigranular, sub-ophitic dolerite and gabbro.|basic intrusive rock|||Y||17-JAN-23
Bitter Ground Volcanics|21260|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Frasnian||||eruption|Frasnian||||||3000||No|22736||Leitch E.C.|30-OCT-84|||NLR Jan91. Reactivated by John Roberts Feb95.|Basalt, andesite and dacite flows, dolerite intrusions and intercalated tuff, siltstone and sandstone|basic volcanic rock|metamorphosed igneous rock|forearc|N||17-JAN-23
Bitter Vine Leucomonzogranite Phase|82363|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||Botumburra Range Granodiorite|2363|Carnian|||inferred||Carnian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine-grained biotite leucomonzogranite.|acid intrusive rock|||Y|I-type|16-AUG-23
Bittles Tank Volcanics|73421|||||Yes|Member, phase|Formal|Resvd name published|Defined|Ponto Group|35621|||Cambrian||||eruption|Cambrian|496|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66918|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used in the Koonenberry 1:500 000 map sheet area. Includes magnetic intrusions or volcanics, unknown age and affinity. Adjacent to faults.|Dykes and plutons of foliated diorite; coarse-grained gabbro to dolerite; green-grey cleaved magnetic metadolerite; dark-grey, very fine-grained, deformed and strongly magnetic phyllite. Green-grey, variably cleaved, fine-grained porphyritic metabasalt.|basic intrusive rock|basic volcanic rock||Y||17-JAN-23
Black Bog Shale|1776|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hattons Corner Group|8145|||Ludlow|||biozone|deposition|Ludlow|||||67|152|NSW|No|43385|68592|||||Originally named Black Bog Shales (Brown, 1940). Formerly of the Booroo Ponds Group, now (2012) included in the Hattons Corner Group. Geological Province: Canberra-Yass Shelf.|Dark grey shale, mudstone, siltstone and black graptolitic shale; and 2 unnamed subunits of black graptolitic shale/mudstone/silstone(upper) and dark grey shale/mudstone (lower)|fine grained siliciclastic rock|||N||06-SEP-23
Black Hill Gabbroic Complex|34791|Black Hill Norite|24727|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Ordovician||||intrusion|Lower Ordovician|489|10||||||No|22945||||||Probably in SA, not NSW?. Probably replaces Black Hill Gabbro. No 'Black Hill'  unit used in GSNSW seamless geology 2021.|Gabbro|basic intrusive rock|||Y||17-JAN-23
Black Jack Group|1798|Black Jack Formation|1796|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lopingian||||deposition|Guadalupian|||||470|799.64||No|43194||||||See NSW Geol Survey Memoir 12, p133.  Should take precedence over Black Jack Granite and Black Jack Granodiorite nomenclature, superseding Black Jack Formation and Black Jack Coal Measures (NSW and Qld). Used in GSNSW seamless geology dataset 2021.|Coal bearing, upper is conglomeratic sandstone, abundant tuff and pyroclastic detritus.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||26-SEP-23
Black Knob Monzogranite|82366|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Triassic|249|2|isotopic, Rb/Sr||Late Permian|||inferred|||||No|71628||||||Proposed in 2017 to be part of Black Knob Suite, but the Suite no longer used in 2020/21.|Slightly porphyritic, hornblende-biotite-(clinopyroxene-orthopyroxene) quartz monzonite to quartz-poor monzogranite, possibly minor monzonite. Characterised by abundant mafic enclaves (similar to Moggs Swamp Complex). A-type.|acid intrusive rock|||Y|A-type|21-AUG-23
Black Mountain Sandstone|24186|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Early Silurian|||inferred, overlying unit|deposition|Early Silurian|||inferred, underlying unit|||450|ACT|Yes|39800|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|Defined in BMR Bulletin 233 (1991). Reassigned Silurian in age from Ordovician in Bega-Mallacoota 1:250000 Geological Sheet SJ/55-4, SJ/55-8: Explanatory Notes (1994). Extended to include Tidbinbilla Quartzite on Abell et al 2008 - Geology of the ACT.|Grey, thickly bedded, massive, medium-grained arenite with siltstone and shale interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Black Range Group|1812|Black Range Series|1815|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Pragian|||inferred, overlying unit|eruption|Lochkovian|||inferred, underlying unit|||4400||No|43491|68592|||||Forbes 1:250 000 sheet area. SHRIMP zircon U¿Pb isotopic age dates on Mountain Creek Volcanics, Pilleuil Andesite, Willawong Creek Granite all considered to include a component of inherited zircon which explains why they are too old cf biostratigraphy of underlying Hattons Corner Group.Have a close geochemical/genetic association with the plutons of the Boggy Plain Supersuite.| I-type volcanics and sediments.|acid volcanic rock|sedimentary rock||N|I-type|17-JAN-23
Black Rock Subgroup|28374|Black Rock Sub-Group|1834|||Yes|Subgroup|Formal|Variation of published name|Fully described|Catombal Group|3797|||Famennian||||deposition|Frasnian||||||||No|43513||||||See also Black Rock Sub-Group, Black Rock Sandstone (NSW).|Massive to bedded quartz and lithic sandstone, haematitic shale, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Black Snake Creek Granite|1837|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Black Snake Creek Suite|82121|Lower Triassic||||intrusion|Lopingian|252|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|33766|33476|||||Defined 1976. NOT Same unit as Black Snake Porphyry defined in 1995 in Goomeri 1:100 000 sheet (9345)|The bulk of the granitoid body is medium-grained, grey-pink granite with a very small amount of mafic minerals. The marginal phase is finer grained, averaging 1mm; it is grey-pink and has a saccharoidal texture|acid intrusive rock|||Y|I-type|24-AUG-23
Black Snake Creek Suite|82121|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Lopingian|||inferred||Lopingian|||inferred|magmatic crystallisation||||No|71628||||||Age from Black Snake Creek Granite. This appears to be the only constituent of this Suite.|||||Y||21-SEP-23
Black Springs Granite|1841|Black Springs Granodiorite|1842|||Yes|Formation, beds|Formal|Variation of published name|Described|||Oberon Supersuite|31533|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Bathurst 1:250 000 sheet area. Intrudes the Adaminaby Group and Rockley Volcanics.|Grey, medium-grained, equigranular to seriate hornblende biotite granite|acid intrusive rock|||Y||17-JAN-23
Blackfellows Gully Leucomonzogranite|67907|Blackfellows Gully Leucogranite|1857|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Llangothlin Suite|74008|Lower Triassic||||intrusion|Late Permian||||||||No|71628||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Uralla Suite, now the Uralla Supersuite. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Biotite - (hornblende) leucomonzonite; includes porphyritic, flow-banded and coarse equigranular variants|acid intrusive rock|||Y|I-type|22-AUG-23
Blackmans Creek Granite|1863|Blackman's Creek Leucogranite|1861|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Blackmans Creek Suite|31551|Ludlow||||intrusion|Ludlow||||||||No|42726||||||Reserved as Blackmans Creek Leucogranite (Tobisch, Paterson, Pogson, 1999). Stated to be of the Yewrangara Suite on the GOULBURN 1:250K provisional (2008 map sheet.|Medium-coarse grained, massive-mildy foliated, generally equigranular, leucocratic arfvedsonite-biotite granite; moderately high magnetic susceptibility.|acid intrusive rock|||Y|A-type|17-JAN-23
Blackmans Creek Granite, Spring Road Granite|42004|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Foliated biotite tonalitic granite; minor porphyritic microgranite, quartz diorite, biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Blackmans Creek Suite|31551|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Devonian||||intrusion|Middle Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Blackmans Flat Conglomerate|1865|Upper Marrangaroo Conglomerate|18925|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cullen Bullen Subgroup|24607|||Late Permian||||deposition|Late Permian||||||20.5|NSW|Yes|43318|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd|13-JUN-83|Russell, T.|13-JUL-83|Formerly of Lithgow Coal Measures. See also Blackmans Flat Formation.|Quartz sandstone, pebbly, coarse-grained.|siliciclastic sedimentary rock|||N||17-JAN-23
Blacks Flat Diorite|1869|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Early Silurian|417|6|isotopic, K/Ar|magmatic crystallisation|Early Silurian|435.8|2.1|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|29648|42313||||||Fine to medium-grained monzodiorite|intermediate intrusive rock|||Y||17-JAN-23
Blacksmiths Creek Monzogranite|82414|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Sailor Jack Suite|73887|Lower Triassic|||inferred, intrusive relationship||Late Permian|||inferred, intrusive relationship|||||No|||||||Used in 2017, but not included in GS NSW seamless geology 2021. Is this a Qld-only unit? No. Shown in Seamless as part of 'Unassigned composite unit', Pui_c, in combination with Tenterfield Creek Leucogranite (no boundaries have been delineated).|Pale grey, fine-grained, moderately porphyritic hornblende-biotite granodiorite. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Blackwater Group|1876|Upper Bowen Beds|29089|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Lopingian|248|||deposition|Lopingian|251|||||1550|QLD|No|43994|48900|||||Defined 1969. Generalised numerical ages taken from regional diagram. Unit consistently described as Permian. Used in GSNSW seamless geology dataset 2021.|Feldspathic and lithic sandstone, silty sandstone, calcareous sandstone, ashstone and cherty mudstone, carbonaceous mudstone and coal; commonly abundant plant fossils and fossil wood.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||31-JUL-23
Blakefield Coal Member|26399|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Malabar Formation|11055|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Blanchetown Clay|1918|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wunghnu Group|20670|||Lower Pleistocene|1.2|||deposition|Lower Pleistocene|2.4|||||20|SA|No|71248|42966|||||Age: ~2.0Ma. Lake Bungunnia sediments.|Laminated greenish-grey and red-brown clay and silty clay, locally calcareous and gypsiferous; minor interbedded quartz sand, ostracod sand; contains calcareous, gypsiferous and siliceous nodules.|regolith|||N||17-JAN-23
Bland Diorite|25792|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Early Silurian||||intrusion|Early Silurian|433.7|2.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76|NOTE: Incorrect uses of  the "Bland" prefix have occurred in the literature, e.g Bland Granite and Bland Diorite. See also RefID 67060 p505.|Medium to coarse diorite and hornblende porphyrite.|intermediate intrusive rock|||Y|S-type|17-JAN-23
Blandford Rhyodacite Member|70462|Blandford|41416|||Yes|Member, phase|Formal|Resvd name published|Defined|Woodton Formation|31412|||Cisuralian||||eruption|Cisuralian|291|4|||10|||No|62095|62095|||||Age: 291.1+/-3.6Ma. (Asselian). see also the abbreviated Blandford Rhyodacite.|Beige to white rhyodacite lava with scattered medium to coarse phenocrysts of plagioclase and fine opaque minerals.|acid volcanic rock||extensional continental backarc|N||17-JAN-23
Blanket Flat Granite|1926|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|07-JUN-07|||Of the Wyangala Batholith. Formalized on CROOKWELL 1:100 000 sheet (2000). Previously of Blanket Flat Suite. Stated to be of Hovells Suite on GOULBURN 1"250K map sheet (2008).|Medium-coarse grained, equigranular to porphyritic and locally megacrystic, massive-foliated cordierite?-muscovite-biotite granite and minor biotite-quartz monzonite. Medium-high  K and Th with low-high U response; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Blathery Creek Conglomerate Member|31256|||||Yes|Member, phase|Formal|Other new published name|Defined|Curra Creek Conglomerate|5052|||Upper Devonian||||deposition|Upper Devonian||||||80|NSW|No|43512|43512||||||Red conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Blaxland Granite|1934|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Hartley Suite|31451|Carboniferous||||intrusion|Carboniferous||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Blayney Volcanics|29501|Blayney Basalt|1935|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Sandbian||||eruption|Middle Ordovician|||||||NSW|No|22679|23214|||||Used on Bathurst 1:250 000 sheet, to replace Blayney Basalt, Blayney Andesite. Molong-Wellington Volcanic Belt.|Clinopyroxene basalt, agglomeratic in places; volcanic sandstone.|basic volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Bletchley Park Volcanic Member|23393|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Late Silurian||||eruption|Silurian|||||||NSW|No|42313|42313|Lightner, J.|28-JUN-77||||Volcanics|igneous rock|||N||17-JAN-23
Blind Gabbro|1955|Blind Granite|1956|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Blind Suite|1957|Lochkovian|414.6|4.1|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Silurian|||||||NSW|No|35263|41905||||||Orthopyroxene and clinopyroxene gabbro, gabbroic diorite|basic intrusive rock|||Y|I-type|04-SEP-23
Blind Suite|1957|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|41905|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Bloomfield Limestone Member|26402|Bloomfield Limestone|1965|||Yes|Member, phase|Formal|Variation of published name|Fully described|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||120||No|32483||||||Part of the Murrumbidgee Group.|Blue-grey, thinly interbedded, massive or laminated fossiliferous limestone and shale.|carbonate sedimentary rock|||N||17-JAN-23
Blow Clear Member|25794|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Burcher Greywacke|3060|||Wenlock||||deposition|Llandovery|||||||NSW|Yes|35503|35503|Kemezys K.J.|15-JAN-76|Hawke, J.|12-OCT-76|Forbes 1:250 000 sheet area. For more definition information see Burcher Greywacke details.|Matrix (coarse grained greywacke) supported lithic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Blow Hole Latite Member|1968|Blow Hole Latite|1969|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|29900||||||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]. Previously considered a member of the Broughton Formation.|Basaltic lava flow. Three pillowed, columnar, microporphyritic flows separated by breccias.|intermediate volcanic rock|||N||17-JAN-23
Blowering Formation|27671|Blowering Group|1973|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Ludlow||||deposition|Wenlock|432.4|4.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|60078|42313|||||See also "Blowering porphyry", "Blowering Porphyry", "Blowering beds".  Part of this unit now defined as Brawlin Formation by Basden and Gilligan (2004).|Dacite, dacitic tuff, slate, slaty siltstone, quartzite, feldspathic and lithic sandstone, conglomerate; minor trachyandesite crystal tuff, quartz trachyandesite, chert, mudstone; slightly to very foliated.|acid volcanic rock|siliciclastic sedimentary rock|oceanic backarc|N|S-type|06-SEP-23
Blowering Formation, Jackalass Slate|42288|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||deposition|Late Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Dacite, dacitic tuff, volcaniclastic slate, slaty siltstone, quartzite, feldspathic and lithic sandstone, polymictic conglomerate; minor trachyandesite crystal tuff, quartz trachyandesite, chert, mudstone; slightly to very foliated|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Blue Knob Basalt|1991|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lamington Volcanics|10120|||Neogene||||eruption|Cenozoic||||||350||No|43881|43881|||||Previously included in the MacPherson Volcanics.|Basalt and andesite|basic volcanic rock|||N||17-JAN-23
Blue Knob Serpentinite|75836|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|65317||||||Probably accidentally 'formalised'. Only used in figure for serpentinite near Blue Knob.  No description. NOT related to Blue Knob Basalt.|||||N||17-JAN-23
Blue Nobby Monzogranite|82367|Blue Knobby Monzogranite|41052|||Yes|Formation, beds|Formal|Variation of published name|Described|||Hillgrove Supersuite|67847|Cisuralian|||||Cisuralian|296|3.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||71628. Used in GSNSW seamless geology dataset 2021.|Grey, coarse-grained K-feldspar-rich biotite monzogranite, with small pods and dykes of leucocratic syenogranite; rare garnet; massive to foliated. S-type.|acid intrusive rock|||Y|S-type|29-AUG-23
Blue Waterhole Formation|2006|Blue Waterhole Formation|2006|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cooleman Plains Group|4528|||Pridoli||||deposition|Ludlow||||||600|NSW|No|36441|45147||||||Siltstone, cherty siltstone, limestone and hornfels|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Bluevale Coal Member|77374|Blue Vale|21271|||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Check spelling. Originally reserved as Blue Vale. This name revived by GSNSW 14-JUN-2012.|Coal: Typically high volatile, ash 8-13% (raw), seam ranges from 2-3m in Vickery area, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Bluff Limestone|2017|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Middle Devonian||||deposition|Lower Devonian||||||||No|43526|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Bluff Mountain Trachyte Member|81949|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Naman Formation|81948|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Flow-foliated, porphyritic, medium-grained, aegerine-arfvedsonite trachyte forming blocky outcrop.|intermediate volcanic rock|||N||17-JAN-23
Boambolo Formation|2046|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Douro Group|5668|||Wenlock|||inferred, overlying unit|deposition|Wenlock|||inferred, underlying unit||40|276|NSW|Yes|32675||Pogson & Baker (1974) after Moignard (1970)|06-JUN-74|NSW SNSC|11-OCT-74|First defined in an unpublished thesis by Moignard (1970) and the term subsequently published in a stratigraphic table without definition by Pogson and Baker (1974).|Shale, siltstone, medium to coarse quartz sandstone. Contains gastropods, brachiopods, ostracodes, crinoids, algae.|siliciclastic sedimentary rock|||N||17-JAN-23
Boat Harbour Breccia|24189|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Lord Howe Volcanic Complex|83554|||Miocene||||eruption|Miocene|6.9||||||NSW|Yes|36958||I.McDougall|24-NOV-80||11-DEC-80|For use on Lord Howe Island. Approved - see letter on file 79/665 11/12/80|Massive, well-indurated breccia. Basaltic fragments in a fine grained matrix.|basic volcanic rock|||N||17-JAN-23
Bobadah Tuff Member|2049|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Majuba Volcanics|27473|||Lochkovian||||eruption|Lochkovian||||||||No|35287|||||||Tuff|igneous volcanic rock|||N||17-JAN-23
Bobelah Granite|77134|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Tarcoon Suite|77133|Lower Devonian||||magmatic crystallisation|Late Silurian|417.1|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|69635||Hegarty, R. (GSNSW)|05-MAY-11|||Age indistinguishable from Sainsbury Park Granite,  Compton Downs Granite. Similar magnetic signature, I-type geochemistry + proximal to Compton Downs Granite.|Biotite granite, locally altered and deformed|acid intrusive rock|||Y|I-type|17-JAN-23
Boblegigbie Granite|79359|||||Yes|Formation, beds|Informal|Resvd name published|Described|||||Devonian||||intrusion|Devonian||||||||No|70777||Trigg, S. (GSNSW)|26-FEB-16|||Narrandera 1:100k map sheet area 8228.  Very porphyritic hypabbysal granite. To be published = Probably in a volume of Quarterly Notes of the Geological Survey of New South Wales this year or in 2017.|Very porphyritic hypabbysal granite|acid intrusive rock|||Y||17-JAN-23
Bobs Creek Formation|25796|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Woolomin Group|27097|||Famennian||||deposition|Ludlow|||||||NSW|Yes|41328|41328|Aitchison J.C. et al.||NSW SNSC|27-FEB-91|Age updated from 2010 Manilla map.|Low grade regionally metamorphosed, multiply deformed thinly bedded chert, mudstone, wacke, basic volcanic and rare limestone|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock|accretionary wedge|N||17-JAN-23
Boco Formation|2060|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Wendalpa Subgroup|19731|||Cryogenian||||deposition|Cryogenian||||||||No|30261|||||||Dolomite, limestone, minor sandstone,chert, contains stromatolites.|carbonate sedimentary rock|||N||17-JAN-23
Bocobidgle Conglomerate|23398|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Forbes Group|25912|||Wenlock||||deposition|Wenlock||||||300|NSW|No|40891|46522|L.Sherwin|06-FEB-86||||Cobble conglomerate to medium sandstone, limy beds; contains corals.|siliciclastic sedimentary rock|||N||17-JAN-23
Bodalla Monzogranite|36110|Bodalla Adamellite|26408|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Moruya Suite|12371|Upper Devonian||||intrusion|Middle Devonian||||||||No|23439||||||Supersedes Bodalla Adamellite?  See also the informal Bodalla Granite.|Monzogranite|acid intrusive rock|||Y||17-JAN-23
Bodonga beds|42412|Bodonga Beds|2066|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|44093|||||||Ortho- and paraconglomerate, lithic sandstone and minor siltstone, locally fossiliferous; commonly weakly metamorphosed.|siliciclastic sedimentary rock|||N||17-JAN-23
Bog Hole Monzogranite|77003|Bog Hole Adamellite|25797|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Coarse-grained biotite monzogranite and granite|acid intrusive rock|||Y||29-SEP-23
Bogalong Suite|31620|Bogalong Granite|2078|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Fine to coarse grained, leucocratic, perthitic, biotite-, muscovite-, and biotite-muscovite granites|acid intrusive rock|||Y|S-type|17-JAN-23
Bogan Schist|21278|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tottenham Subgroup|30980|||Darriwilian|||||Tremadocian||||||1400||No|43441|22831|Sherwin L.|15-FEB-94|||Narromine 1:250 000 sheet, 8333. Parent Tottenham Subgroup, Girilambone Group.|Feldspathic quartz-muscovite schist.|metamorphic rock|||N||17-JAN-23
Bogandillon Member|33791|Bogandillon Chert Member|24741|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Weelah Formation|19672|||Silurian||||deposition|Silurian|||||||NSW|No|||Lyons P.|09-NOV-99|||Name revised because the unit is tuffaceous & not a chert. Insufficient detailed work was done to justify using the unit on the 1999 Forbes 1:250k sheet, but it may be redefined in the future.|||||N||17-JAN-23
Bogandyera Granite|2084|Bogandyera granite|2085|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mannus Creek Suite|31616|Lower Devonian||||intrusion|Lower Devonian||||||||No|45087||||||Chappell et al., in an AMIRA Report  in 1999, combined this unit along with the Prison Farm Granodiorite and the Munderoo Granodiorite into the Bogandyera Granite, and renamed the (parent) Mannus Creek Suite as the Bogandyera Suite, but these changes were not reflected in publicly available documents, and have apparently not been supported by GSNSW work, given that they retained all 3 units as part of the Mannus Creek Suite in 2013.|I-type, felsic, unfractionated granite|acid intrusive rock|||Y|I-type|18-AUG-23
Bogey Hole Formation|2087|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Lambton Subgroup|10115|||Permian||||deposition|Permian||||||||No|43447||||||Of Lambton Subgroup, Newcastle Coal Measures. Included Cockle Creek Conglomerate Member. This name dropped by 1999, but apparently now reinstated. Used in GSNSW seamless geology dataset 2021.|Shale, siltstone, sandstone, minor conglomerate, claystone and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||02-SEP-23
Boggabri Volcanics|2088|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Guadalupian|260||palaeomagnetism|deposition|Cisuralian|291||palaeomagnetism||15.54|775||No|43408||||||Now includes Gunnedah Volcanics. [1993]|Rhyolitic to dacitic lavas and ashflow tuffs with interbedded shale. Rare trachyte and andesite.|acid volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Boggy Plain Granitic Complex|27715|Boggy Plain Adamellite|27111|||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||Boggy Plain Suite|2091|Lower Devonian||||intrusion|Late Silurian|417.2|4.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|60078||||||Supersedes Boggy Plain Adamellite? See also RefID 67060 p505.|Monzogranite, some gabbro, quartz gabbro, minor granodiorite|acid intrusive rock|||Y|I-type|04-SEP-23
Boggy Plain Suite|2091|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||Boggy Plain Supersuite|2092|Silurian|||||Silurian||||||||No|45147||||||Consists of one pluton only - concentrically zoned.|concentrically zoned from marginal diorites inwards through granodiorites to hornblende monzogranites to a central aplitic core. High-temperature I-Type granites|acid igneous rock|||Y|I-type|04-SEP-23
Boggy Plain Supersuite|2092|||||Yes|Supergroup|Formal|Unknown or process pending|Defined|||||Lochkovian||||intrusion|Lochkovian||||||||No|40882||||||Incl: Boebuck, Banimboola, Anglers Rest, Bingo Munjie, Post Office and Charlestown intrusions; also includes Boggy Plain and Nallawa Suites.  Three new suites to be added in for new GOULBURN 1:250 000 sheet (2006) - Monteagle, Karoopa and Childowla Suites|I-type granite. Consists of a belt of granite plutons and associated volcanic complexes. Potassium-rich, oxidised I-type biotite-hornblende granite, leucogranite, monzodiorite and aplite.|acid igneous rock|||Y|I-type|17-JAN-23
Boginderra Granite|23400|||||Yes|Formation, beds|Informal|Resvd name published|Described|Narraburra Complex|69150|Narraburra Suite|31617|Upper Devonian|358|9|isotopic, Rb/Sr|intrusion|Upper Devonian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area.  Age and parent deduced from Wormald et al, 2004, AJES, vol 51, p372.|Arfvedsonite-aegirine granite|acid intrusive rock|||Y||17-JAN-23
Bogolo Formation|2097|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Wagonga Group|19196|||Hirnantian||||deposition|Katian||||||850||No|29992||||||Originally the basal unit of Wilson's (1968) Narooma Group and overlain by Wagonga Formation. Now the redefined Wagonga Group includes Bogolo Fm. conformably overlying the Narooma Chert. In the Narooma Terrane.  Includes the Kianga Basalt. Age evidence poor.|Mudstone, conglomerate with blocks of basalt, chert and sandstone beds in an argillaceous matrix; minor quartz arenite.|fine grained siliciclastic rock|basic volcanic rock||N||17-JAN-23
Bogolong Formation|79858|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Cocoparra Group|4293|||Upper Devonian|||||Upper Devonian|||inferred, underlying unit|||||No|72083||Trigg, S. (GSNSW)|13-JUN-17|||A distinctive recessive unit in the Narrandera area. The type area is on private property around GR 473140 6160000 (Narrandera 1:100K sheet). New name, after Bogolong Hills; a subdivision of previously undifferentiated Cocoparra Group.|Mostly red-purple, fine- to medium-grained quartzose sandstone, locally micaceous; typically thin- to medium-bedded; local well-developed ripple marks characteristic.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Bogong Granite|2101|Bogong granite|2104|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bogong Suite|31481|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|33995|42313||||||Fine to coarse-grained biotite granite; pink aplitic granite and leucogranite; minor fine to medium-grained biotite mafic granite; rare aplite dykes, quartz veins|acid intrusive rock|||Y|I-type|17-JAN-23
Bogong Suite|31481|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Bogungra Dacite Member|74588|Bogungra Granite|2105|||Yes|Member, phase|Formal|Other new published name|Redefined|Tangerang Formation|27094|||Pragian||||intrusion|Lochkovian||||||||No|64238|||||||Greenish-grey, massive, medium-grained porphyritic intrusive dacite composed of plagioclase, ferroan enstatite, augite and minor quartz phenocrysts set in a finely granophyric groundmass.|acid intrusive rock|||Y||17-JAN-23
Bohena Coal Member|79331|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||1|18|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|10-FEB-16|||Proposed publication: AJES.|Coal, dull to dull with minor bright bands. Comprises a single seam in the type section. Coal has four carbonaceous mudstone bands.|organic rich sedimentary rock|||N||17-JAN-23
Boiling Down Sandstone Member|2108|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Goonoo Goonoo Mudstone|7573|||Tournaisian||||deposition|Tournaisian|||||||NSW|No|43399|43399|||||See also equivalent Tulcumba sandstone.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bolairo Granodiorite|2119|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Clear Range Suite|31567|Late Silurian||||intrusion|Late Silurian||||||||No|45003|||||||Xenolith-rich granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Bold Slate Granite|23401|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||Ilsley D., Lewis P.|14-FEB-80||||Fine leucogranite|acid intrusive rock|||Y||17-JAN-23
Bolivia Range Leucomonzogranite|38267|Bolivia Range Leucoadamellite|2125|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bolivia Range Suite|73987|Anisian|241||isotopic, Rb/Sr|intrusion|Olenekian|247.7|1.5||||||No|23811||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Foremrly in the Moonbi Supersuite - now of the Bolivia Range Suite within the Stanthorpe Supersuite.|Inhomogeneous, pink granite varying from medium-grained leucogranite to porphyritic and coarse-grained granite with rapakivi structure. Microgranite is also present. Miarolitic cavities abundant in places.|acid intrusive rock|||Y|I-type|17-AUG-23
Bolivia Range Suite|73987|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Stanthorpe Supersuite|73988||||||||||||||No|69639||Champion, Blevin and Bultitude|20-NOV-07|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Published in: C. J. Bryant, 2017, A compendium of granites of the southern New England Orogen, eastern Australia (Refid: 71628). A full description appears in chapter 15 pp4-25. Indexing pending. Includes the Bolivia Range Leucomonzogranite, Deepwater Syenogranite, Mount Mackenzie Monzogranite, Nonnington Leucomonzogranite, Pyes Creek Leucomonzogranite, and tentatively the Billyrimba Leucomonzogranite|Leucomonzogranite, syenogranite, monzogranite.|acid intrusive rock|||Y||24-AUG-23
Bollol Creek Coal Member|21285|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||D.Butel|03-AUG-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012. Used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash (~11.9% raw), bituminous  (steaming) coal, thickness typically 0.9m in Boggabri region, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Boloko Granodiorite|2134|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Ingebyrah Suite|8689|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|33782|41905||||||Biotite monzogranite|acid intrusive rock|||Y||17-JAN-23
Bolong Granite|38762|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Scott, M.|01-AUG-03|||TARALA 1:100 000 map sheet|Granite|acid intrusive rock|||Y||17-JAN-23
Bolton Point Conglomerate Member|2139|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Eleebana Formation|6050|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||Formerly of Eleebana Formation, Moon Island Beach Subgroup, Newcastle Coal Measures. This Member was dropped. These rocks seem likely to have been included in the Boolaroo Formation [RefID 68111]. Original name and relations reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Pebble to cobble polymictic ortho-conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Boltons beds|2145|Boltons Beds|2143|||Yes|Formation, beds|Informal|Unknown or process pending|Fully described|Kiandra Group|27446|||Lower Ordovician||||deposition|Lower Ordovician||||||2000||No|23710||||||Tantangara, Brindabella.  Not related to Bolton Point Conglomerate Member.|Quartz arenite, siltstone and shale; distal turbidite. Contains graptolites|siliciclastic sedimentary rock|||N||17-JAN-23
Bombala Suite|31536|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Tonghi Supersuite|18338|Devonian||||intrusion|Silurian||||||||No|42726||||||All or part has become Kelvin Suite?|Granite|acid intrusive rock|||Y||17-JAN-23
Bombala Supersuite|77132|||||Yes|Supergroup|Informal|Variation of published name|Briefly described||||||||||||||||||No|68592||Blevin, P. (GSNSW)|05-MAY-11||||Intrusive rocks mainly comprising tonalite and granodiorite|acid intrusive rock|||Y||17-JAN-23
Bombala Tonalite|32182|Bombala Granite|2148|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kelvin Suite|32180|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||||||Was part of Bombala Suite as Bombala Granite.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Bombay Volcanics|24744|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Silurian||||eruption|Silurian||||||1745|NSW|Yes|12185|30735|Felton E.A.||Hawke, J.|27-AUG-77||Grey-green medium-grained dacitic crystal tuff; rhyolite, rhyolitic ignimbrite. Minor shale, siltstone, lithic sandstone.|acid volcanic rock|||N||17-JAN-23
Bombo Latite Member|83913|Bumbo Latite Member|27728|||Yes|Member, phase|Formal|Variation of published name|Described|Gerringong Volcanics|7155|||Lopingian|252|4|||Guadalupian|265.05|.35||||||No|||||||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]. Previously spelled  as Bumbo Latite Member but matched to local place name spelling in GSNSW seamless geology. Age from Richards J.R. and McDougall I. 1986 pers comm. Revised K-Ar dating from New South Wales and new unpublished data. In Jones D.G. 1986. K-Ar Isotopic dates, New South Wales. GS 1986/237.|Dark grey to black, porphyritic basalt (in hand specimen) plagioclase phenocrysts with minor clinopyroxene; sporadically vesicular. Jointing and breccia zones common. Alkaline on TAS diagram; Available geochemical analyses classified as trachyandesite.||||N||11-JUN-23
Bomera Conglomerate Member|70102|Bomera|21287|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Digby Formation|5470|||Lower Triassic||||deposition|Lower Triassic||||||113||No|43194|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Bondi Granite|2167|||||Yes|Formation, beds|Formal|Other new published name|Described|||Wallagaraugh Suite|25586|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Porphyritic biotite granite|acid intrusive rock|||Y||17-JAN-23
Bondo Ankaramite|70033|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||intrusion|||||||||No|61819|||||||A lava rock of doleritic appearance with large pyroxene, plagioclase and olivine crystals.|basic volcanic rock|||N||17-JAN-23
Bondonga beds|2168|Bondonga Beds|26413|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cisuralian|251.6|3.2|inferred, overlying unit|minimum depositional age|Cisuralian|280.7|3|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|60079||||||Silver Spur Subprovince, Woolomin Province (Geology of Queensland 2013).|Lithic, locally pebbly arenite, clast to matrix supported sandy to muddy conglomerate, locally pebbly mudstone; minor siltstone; rare limestone and basalt.|siliciclastic sedimentary rock||extensional continental backarc|N||18-AUG-23
Bone Cave breccia unit|34930|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|22952|||||||Breccia|sedimentary rock|||N||17-JAN-23
Bong Bong Basalt|2172|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Triassic||||eruption|Upper Triassic||||||||No|43346|43346||||||Grey, compact, non-vesicular basalt; sub-phaneritic texture, subconchoidal fracture; emplaced as a sill.|basic volcanic rock|||N||19-JUL-23
Bongalaby Formation|27113|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mulwaree Group|26064|||Emsian||||deposition|Pragian||||||200|NSW|Yes|30730|30735|Felton E.A.||Bryan, J.H.|27-OCT-75||Feldspar-quartz-lithic volcaniclastic sandstone, pebbly granulestone and minor clast-supported conglomerate; interbedded with siltstone; thinly bedded calcareous arenite and siltstone, thin beds of fossiliferous limestone; minor rhyolite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Bonna mafic-ultramafic|82826|Bonna Igneous Complex|77336|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Used in GSNSW seamless geology dataset 2023.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||U||13-JUN-23
Bonnie Doon Member|2179|||||Yes|Member, phase|Formal|Other new published name|Described|Bunyan Formation|3053|||Miocene||||deposition|Miocene||||||||No|40664||||||Uppermost member of the Bunyan Formation (per email Lawrence Sherwin 22/9/08). PP.|Diatomite and clay, greater down sequence|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bonnington Siltstone|27717|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||460||No|32869|44244||||||Grey, thinly bedded siliceous siltstone, cherty mudstone and minor lithic sandstone|fine grained siliciclastic rock||forearc|N||17-JAN-23
Bonshaw Coal Seam|77367|Bonshaw Seam|2184|||Yes|Member, phase|Informal|Variation of published name|Reserved|Ashford Coal Measures|705|||||||deposition|||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Informal reference to a coal seam in the Ashford Coal Measures - see also Bonshaw Member, Bonshaw Seam. Coal: Minor, low quality seam, generally 2 metres thick with interbedded shaley coal banding|Coal: Minor, low quality seam, generally 2 metres thick with interbedded shaley coal banding|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bonshaw Member|77320|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Ashford Coal Measures|705|||Cisuralian||||deposition|Cisuralian||||||||No|68005||||||Contains the Bonshaw seam and its splits; carbonaceous claystone and thin coal layers, with little or no economic significance.|Mainly coarse sandstone, conglomerate and interbedded layers of fine sediments including carbonaceous shale with rare, thin coal plies.|siliciclastic sedimentary rock|||N||17-JAN-23
Booda Formation|78892|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Middle Ordovician|494|7|isotopic, U/Pb|deposition|Late Cambrian|495|9|isotopic, U/Pb-Pb/Pb ion probe|||||No|69635||GSNSW|01-NOV-13|||GSNSW unit code S__b, so probably Silurian: but see RefID 70602. Eastern Lachlan Orogen.|Cleaved metasandstone and phyllite.|metasedimentary siliciclastic rock|||N||17-JAN-23
Boogledie Formation|2192|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kandos Group|29513|||Eifelian||||deposition|Emsian||||||950||No|43476|23170|||||Replaces informal Melrose Formation.|Feldspathic-lithic arenite, shale, pebbly arenite and conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Bookookoorara Monzogranite|73824|Bookookoorara Adamellite|2198|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bungulla Supersuite|82122|Middle Triassic|240.1|2.4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lower Triassic|249.8|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|63732||Blevin, P.|12-NOV-07|||Replaces "Adamellite".  Ref: Champion, Blevin and Bultitude, pers.comm., 2007. Previously within the Stanthorpe Supersuite. of Bungulla Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Medium to coarse-grained monzogranite with a porphyritic texture.|acid intrusive rock|||Y|I-type|18-AUG-23
Bookpurnong Formation|2203|Bookpurnong Beds|2200|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Pliocene||||deposition|Miocene|7.2||stable isotopes|||50|SA|No|30996||||||Superseded Bookpurnong Beds of Lawrence (1961) - revised by Rogers et al (1995) to Bookpurnong Formation. Recent literature sometimes refers to superseded name Bookpurnong Beds. Preferred age from Sr isotopes in shelly fossils 6.5 - 7.2 Ma. See also Bookpurnong beds.|Consists of clays with occasional sandy, silty, carbonaceous and calcareous beds. Shallow marine clays and marls; grey to brown muds; pinnate cracks filled with kaolinite common; local goethite-rich lenticular mottles.|regolith|||N||17-JAN-23
Boolahbone Granite|24748|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lochkovian|415.8|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|420|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|34449|41126|||||See also misspelt versions - Boolabone Granite, Boohlabone Granite and Boolabane Granite.|Biotite graphic granite and muscovite-biotite graphic monzogranite. Minor porphyritic biotite microgranodiorite (A-type)|acid intrusive rock|||Y|A-type|17-JAN-23
Boolambayte Formation|23408|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||1370|NSW|No|36057|36057|D.T.Crane, J.W.Hunt|10-FEB-76||||Interbedded mudstone and structureless, lithic sandstone, thick massive lithic sandstone and upper part of both lithic sandstone and mudstone with 3 calcarenites, brown lithic sandstone and boulder conglomerate at base|siliciclastic sedimentary rock|||N||17-JAN-23
Boolaroo Subgroup|2220|Boolaroo Sub-Group|2218|||Yes|Subgroup|Formal|Unknown or process pending|Briefly described|Newcastle Coal Measures|27861|||Late Permian|||||Late Permian|||||||NSW|No|39666||||||Of McKenzie and Britten (1969). Replaced in part by Boolaroo Formation. Apparently reinstated as Subgroup (2015): RefID 70647. See Boolaroo Formation for details of type section location.|Sandstone, conglomerate, tuff, black coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||14-AUG-23
Boomerang Creek Gneiss|24749|||||Yes|Formation, beds|Formal|Variation of published name|Described||||||||||||||||||No|34544|||||||Gneiss|high grade metamorphic rock|||N||17-JAN-23
Boomerang Tank Limestone Member|27345|Boomerang Tank Limestone|2239|||Yes|Member, phase|Formal|Variation of published name|Fully described|Baledmund Formation|954|||Lochkovian||||deposition|Lochkovian||||||||No|35287||||||Within the Kopyje Group (Cobar Supergroup). Contains late Lochkovian age-diagnostic conodont.|Limestone|carbonate sedimentary rock|||N||04-AUG-23
Boomi Rhyolite Member|37903|Boomi Rhyodacite|30060|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Caroda Formation|3651|||Visean||||eruption|Visean||||||25|NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03||Rhyolite|acid volcanic rock|||N||17-JAN-23
Boonabah Volcanics|32497|Boonbah Volcanics|29573|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Ordovician|||inferred|eruption|Upper Ordovician|||inferred|||||No|22638||||||Misspelt when reserved or published? Cootamundra 1: 250 000 map sheet. Does no outcrop. Age may be close to Ordovician/ Silurian boundary|Basalt, andesitic breccia and volcaniclastic rocks intruded by quartz diorite dykes.|basic volcanic rock|intermediate volcanic rock|island arc|N||17-JAN-23
Boonanghi beds|2253|Boonanghi Beds|27114|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Carboniferous||||deposition|Upper Devonian||||||||No|41347||||||Suggested to be superseded by Boonanghi Formation, however name still in use by NSW Geological Survey (18ARP05).|Mudstone, laminite, lithic sandstone, tuff, minor limestone and conglomerate.|fine grained siliciclastic rock|metamorphosed igneous rock|forearc|N||17-JAN-23
Boonoo Granite|73902|Boonoo Monzogranite|82369|||Yes|Formation, beds|Formal|Resvd name published|Described|||Boonoo Suite|73903|Anisian|245.6|2.5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Olenekian||||||||No|63732||||||Boonoo Monzogranite - "renamed Boonoo Granite on the GSQ 2007 map" - ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007.  Within the Herries Supersuite.|Grey to pinkish grey, medium- to fine-grained, slightly to moderately porphyritic muscovite-titanite-biotite monzogranite; with scarce mafic inclusions to ~3cm.|acid intrusive rock||continental margin arc|Y|I-type|23-AUG-23
Boonoo Monzogranite|82369|Boonoo Granite|73902|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Boonoo Suite|73903|Middle Triassic|||inferred||Middle Triassic|245.69|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023. See also Boonoo Granite, used in Qld.|Grey to pinkish grey, medium- to fine-grained, weakly to moderately porphyritic biotite-(amphibole) monzogranite. I-type.|acid intrusive rock|||Y|I-type|23-AUG-23
Boonoo Suite|73903|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Herries Supersuite|73827||||||||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007. This one-granite suite may be dropped.|||||Y||17-JAN-23
Boorabil Ignimbrite Member|39259|Boorabil|36746|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Westphalian||||eruption|Westphalian|||||||NSW|Yes|50613|50613|Roberts, J.|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Originally reserved as Boorabil.  Volcanic member of the Tulcumba package (informal grouping of stratigraphically recognisable distinctive, mappable units).|Beige, pink or brown, unwelded to slightly welded ignimbrite, with quartz, plagioclase, K-feldspar, biotite, opaque minerals and rare pumices. Groundmass micropoikilitic or spherulitic.|acid volcanic rock|||N||17-JAN-23
Booragul Tuff Member|2268|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Catherine Hill Bay Formation|3791|||Lopingian|||inferred|eruption|Lopingian|||inferred|||||No|37083||||||Formerly of Catherine Hill Bay Formation, Moon Island Beach Subgroup, Newcastle Coal Measures.This Member was dropped, but reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Tuff and tuffaceous sandstone.|igneous volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Boorah Limestone|2270|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40883|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Booral Formation|2271|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Westphalian||||deposition|Namurian||||||1125||No|44372|44244||||||Grey, often siliceous mudstone, siltstone; medium-grained lithic arenite, feldspathic arenite|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Booral Formation, Buckets Gap Formation|42293|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Siliceous mudstone, siltstone, lithic and feldspathic sandstone; minor conglomerate, rhyodacitic to dacitic ignimbrites and keratophyre sills|siliciclastic sedimentary rock|||N||17-JAN-23
Booralee Volcanics|29733|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Late Silurian||||eruption|Early Silurian|||||||NSW|No|43277||Meakin N.S., Watkins J.J.|20-SEP-95|||Nyngan-Walgett area|Highly altered massive pink feldspar syenite porphyry|intermediate volcanic rock|||N||17-JAN-23
Boorolong Granodiorite|26416|Booralong Monzogranite|77033|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||Mount Duval Suite|67902|Lower Triassic|249.8||isotopic, Rb/Sr|intrusion|Late Permian|||inferred|||||No|31806||||||Used in 2017, with explanation as to why this spelling should be preferred. Not used in GSNSW seamless geology dataset 2021, where Booralong Granodiorite is preferred.|Medium-grained, porphyritic biotite-hornblende granodiorite-monzogranite. I-type.|acid intrusive rock|||Y|I-type|27-SEP-23
Boorook Group|2284|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||||Permian|||||Permian||||||||No|43385||||||Drake area.|||||N||17-JAN-23
Booroomba Leucogranite|2286|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pridoli||||intrusion|Ludlow|||||||ACT|No|32820|45147||||||Leucogranite, aplite|acid intrusive rock|||Y|S-type|17-JAN-23
Booroomin Group|2288|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Permian|||||Permian||||||||No|34043|||||||||||N||17-JAN-23
Booroorban granite|80447|Booroorban granodiorite|76039|||Yes|Formation, beds|Informal|Variation of published name|Described|||Booroorban granite suite|80438|Lower Devonian|398|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lower Devonian|409.4|5.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70718||||||Previously published as Booroorban granodiorite (2008), and this name used p68, p77, p95 in Carlton (2016) Hay explan Notes, but dominant usage in these notes is Booroorban granite.|Porphoritic granodiorite; coarse-grained, massive, inequigranular granite (pale grey in hand specimen).|acid intrusive rock|||Y|I-type|17-JAN-23
Booroorban granite suite|80438|Booroorban Granodiorite Suite|76038|||Yes|Group, Suite|Informal|Variation of published name|Described|||||Devonian|||inferred|intrusion|Silurian|||inferred|intrusion||||No|70718||||||Radiometric age from Booroorban granite.||acid intrusive rock|||Y||17-JAN-23
Booth Limestone Member|23410|||||Yes|Member, phase|Formal|Resvd name published|Defined|Gundaroo Sandstone|23639|||Pragian||||deposition|Lower Devonian|||||||NSW|No|41700|41821|G.MacRae|28-JAN-86||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Boothenba Sandstone Member|25803|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Talbragar Formation|17673|||Upper Triassic||||deposition|Upper Triassic|||||||NSW|No|30610|30610||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bootheragandra Group|42361|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Devonian||||deposition|Silurian||||||||No|61964||||||Initially an informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project. (from Cargelligo 250K map) -  formalised by 2006 (publication of the CARGELLIGO sheet).|Includes a thick sequence of pebble-boulder conglomerate (clasts are mostly quartz sandstone and lesser granite); less common lithologies include quartz sandstone, pebbly quartz sandstone, slate and phyllite.|siliciclastic sedimentary rock|||N||17-JAN-23
Boothumble Formation|2294|Boothumble Beds|2293|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mouramba Group|25736|||Lower Devonian|418|||deposition|Lower Devonian|418|||||1700|NSW|No|41394|41394|||||Together with the Yegi Conglomerate this formation is a transgressive sequence of basal synrift coarse, basement-derived alluvial fan clastics - but is not exposed on CARGELLIGO sheet. Of Mouramba Group [2016], Cobar Supergroup.|Massive and crossbedded granule to cobble conglomerate pebbly lithic sandstone, and well-sorted quartz sandstone with minor siltstone and shale|siliciclastic sedimentary rock|||N||17-JAN-23
Booti Booti Sandstone|24752|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Namurian||||deposition|Visean||||||150|NSW|No|32868|36057||||||Coal-rich crossbedded sandstone with white siltstone and parallel laminated quartzose sandstone with sorted brachiopod valves|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Bootoowa Fossil Member|39667|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Ural Volcanics|18968|||Lower Devonian||||deposition|Lower Devonian||||||30||No|61964||Meakin, S.|14-NOV-03|||For use on map sheet 8131S. Nearest town: Lake Cargelligo. Within the Rast Group.|Fossiliferous rhyolitic breccia with clasts of porphyritic rhyolite, limestone, silicified shelly fossils and crystals of quartz and feldspar.|sedimentary rock|||N||17-JAN-23
Borah Limestone Member|28143|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Mandowa Mudstone|26010|||Upper Devonian||||deposition|Upper Devonian||||||1|NSW|No|43435|37987|||||Of Goonoo Goonoo Mudstone/Mandowa Mudstone. Equivalent Kiah Limestone Member.|Three interbedded limestone horizons; contains ammonoids, conodonts.|carbonate sedimentary rock|||N||21-SEP-23
Boraig Group|24753|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|60086||||||Previously considered part of Boggy Plain Suite.|Rhyolite, rhyodacite, tuff, lapilli tuff, feldspathic sandstone, granophyre deposited in shield building volcanic complexes|acid volcanic rock|||N||17-JAN-23
Borambil Creek Formation|2307|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Late Permian||||deposition|Late Permian||||||105||No|43440||||||Synonymous with Porcupine Formation (Porcupine Fm definition card). Geological Province: Werrie Basin.|Lithic sandstone, conglomerate, shale.|siliciclastic sedimentary rock|||N||02-SEP-23
Borda Coal Member|77589|||||Yes|Member, phase|Reserved|Reserved|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12||||Dull and bright banded coal, minor dark grey carbonaceous mudstone, minor thin bands moderately hard claystone|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Boree Creek Formation|2330|Rosyth Limestone Member|16372|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Waugoola Group|19623|||Wenlock||||deposition|Llandovery||||||100||No|33116|23214|||||Originally named Rosyth Limestone Member of the Panuara Formation. Consists of three sub-units "Limestone A", "Tuffaceous Trilobite Bed" and "Limestone B".|Shallow-water limestone.|carbonate sedimentary rock|||N||17-JAN-23
Borehole Coal|2336|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|39292||||||Previously of Lambton Subgroup, Newcastle Coal Measures. This Formation was downgraded to the informal Borehole coal seam instead [1999]. See also Borehole Seam. Name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Coal with minor bands, sporadic pyrite nodules.|organic rich sedimentary rock|||N||14-AUG-23
Borehole coal seam|35122|Borehole Coal|2336|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Lambton Formation|10113|||Late Permian||||deposition|Late Permian||||||||No|23055||||||Informal unit. Within Lambton Formation, Newcastle Cola Measures.||organic rich sedimentary rock|||N||17-JAN-23
Borenore Limestone|2341|Borenore Limestone Member|28390|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Mumbil Group|13411|||Pridoli||||deposition|Wenlock||||||900||No|43344||||||Previously included as a member of the Gamboola Shale (Joplin 1952) Panuara Formation (Walker 1959).|Brecciated, fossiliferous limestone, tuffaceous siltstone and shale, calcareous arenite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Boro Granite|2344|Shoalhaven Granite|32627|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Glenbog Suite|7361|Pragian||||intrusion|Lochkovian|411.5|3.1|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|39800|36413|||NSW SNSC|20-JUN-76|See also Lexicon. Was, probably mistakenly, listed for VIC as well as NSW. Name first used formally on Canberra 1:250 000 geological sheet (1st edn) (Joplin, 1953); not defined. Defn first in 79/01441, Geology of the Braidwood 1:100 0000 sheet, 1975.|Pink porphyritic hornblende-biotite granite and granodiorite|acid intrusive rock|||Y||17-JAN-23
Boshy Formation|23411|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Kayrunnera Group|9352|||Late Cambrian||||deposition|Late Cambrian||||||100||No|41587||Webby B.D.|31-MAR-87||||Interbedded fine-grained quartz sandstone, feldspathic sandstone, siltstone, calcarenite and impure limestone beds and lenses; minor siltstone and conglomerate interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Botany Sands|2352|Botany sands|2353|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Holocene||||deposition|Pleistocene||||||80||No|29591||||||Overlie Sydney Basin sediments. Oldest [?European migrant use] producing groundwater system still in active use in Australia. The Botany Sands, the Botany Sands aquifer and the Botany Basin appear to all be the same package of sediments.|Sands, silts,clays and peats.|regolith|||N||17-JAN-23
Botheram Granodiorite|2356|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Botobolar Granite|2357|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Namurian||||intrusion|Visean||||||||No|43476|23170||||||Granite|acid intrusive rock|||Y||17-JAN-23
Botumburra Range Granodiorite|2363|Botumburra Range Adamellite|2362|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||Carrai Supersuite|82123|Upper Triassic|232.7|1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Triassic|232.7|1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|35664||||||Both names replaced by Botumburra Range Monzogranite. Name reinstated in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408, and used in GSNSW seamless geology dataset 2021.|Grey to pink to greenish, fine to medium-grained biotite-hornblende granodiorite and monzogranite.|acid intrusive rock|||Y|I-type|19-JUL-23
Boulderwood Formation|32390|Boulderwood Conglomerate|2385|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Middle Triassic||||deposition|Lower Triassic||||||20||No|50590|23170|||||Dubbo 1:250 000 sheet area. Equivalent to Digby Formation, Gunnedah Basin?|Thin-bedded quartz lithic conglomerate, coarse pebbly quartz-lithic sandstone, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Boulton Formation|33410|Bolten Formation|31224|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hervey Group|25947|||Frasnian||||deposition|Givetian||||||707||No|23217|23217|Young G.C.|27-APR-99|||FORBES 1:250 000 sheet area. Name misspelt as Bolten Formation when originally published by Conolly (1965). To replace 'Kadina Formation' Aust. Geol. Surv. Rec. 1999/18. Supersedes both "Bolten Formation" and "Bolton Formation".|Red siltstone, shale, conglomerate.||||N||20-JUL-23
Bourimbla Limestone Member|27115|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician||||||24|NSW|No|33063|33063|||||For lithology description see Semeniuk (1973a,b).|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Bowan Park Limestone Subgroup|31724|Bowan Park Limestone|2400|||Yes|Subgroup|Formal|Variation of published name|Fully described|Cabonne Group|21409|||Katian||||deposition|Katian||||||564||No|43782||||||Molong-Wellington Volcanic Belt.|Thinly to thickly bedded to massive limestone and marl with minor lithic sandstone and mudstone at the base.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bowens Road Coal|2417|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40872||||||To be replaced by Bowens  Road Coal Member.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Bowens Road Coal Member|77428|Bowens Road Coal|2417|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Wenham Formation|24093|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Craven Subgroup, Gloucester Basin. See informal Bowens Road seam, and variations|Coal, bright at base, primarily dull coal with high inherent ash,  high- and medium-volatile bituminous coal|organic rich sedimentary rock|||N||17-JAN-23
Bowfield Coal Member|77273|Bowfield Seam|2427|||Yes|Member, phase|Processing pending|Variation of published name|Briefly described|Mount Thorley Formation|23836|||Late Permian||||deposition|Late Permian||||||||No|68004||||||A variation on Bowfield seam (unit no. 2427).||organic rich sedimentary rock|||N||17-JAN-23
Bowman beds|26419|Bowman Beds|2430|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Mississippian||||deposition|Upper Devonian||||||||No|41347||||||Now be included in Budook beds?|Siltstone, sandstone, volcanics, minor limestone, and conglomerate|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Bowmans Hill Tonalite|77127|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||Arthursleigh Suite|31547|Devonian|||||Devonian||||||||No|||Simpson, C. (GSNSW)|05-MAY-11||||Granite, granodiorite, diorite, porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Bowna Gneiss|2431|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40498|||||||Gneiss|high grade metamorphic rock|||N||17-JAN-23
Bowral Trachyte|72934|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|61186||||||Traditional building stone used in Sydney - probably a name used in the dimension stone industry.||intermediate volcanic rock|||N||17-JAN-23
Bowspring Limestone Member|2439|Bowspring Limestone|2441|||Yes|Member, phase|Formal|Other new published name|Defined|Silverdale Formation|16898|||Ludlow|||inferred, biostratigraphic correlation|deposition|Ludlow|||inferred, biostratigraphic correlation||7.5|31.5|NSW|No|29989|||||||Bedded, semi-nodular, fossiliferous biosparite, biomicrite and micritic limestone with interbeds of shale; shale with nodular limestone interbeds.|carbonate sedimentary rock|||N||17-JAN-23
Box Ridge Volcanics|29583|Box Ridge Formation|2449|||Yes|Formation, beds|Formal|Variation of published name|Defined|Campbells Group|3427|||Lower Devonian|||inferred, geological correlation|eruption|Lower Devonian|||inferred, geological correlation|||1600|NSW|No|22679|22679|||||Replaces the defined Box Ridge Formation. Also fomerly referred to as Box Ridge Member and Pine Ridge Volcanics. Can be subdivided into three informal units: "Pine Ridge Volcanics", "Crawford Formation" and "Barrier Volcanics".|Basalt with fine to coarse grained, locally pebbly to conglomeratic, lithic sandstone, siltstone and mudstone; minor diorite.|metamorphosed basic igneous rock|siliciclastic sedimentary rock||N||17-JAN-23
Boxers Creek Formation|31756|Towrang Beds|18521|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Mount Fairy Group|26052|||Lochkovian|||biozone|deposition|Pridoli|||inferred, underlying unit|||1500|NSW|No|43834||||||Also previously mapped as De Drack Formation.|Very thin to very thick-bedded (up to 3m) fine- to very coarse-grained feldspar-lithic-quartz sandstone, siltstone, shale.  Crystal-rich in places.  Metasedimentary, tuffaceous chert and meta-vein quartz lithic fragments commonly comprise 20-40 percent.|siliciclastic sedimentary rock|||N||05-SEP-23
Boxvale Sandstone Member|2455|Boxvale Sandstone|2456|||Yes|Member, phase|Formal|Variation of published name|Defined|Evergreen Formation|6416|||Toarcian||||deposition|Lower Jurassic||||||60||No|43982|44169|||||Of Reeves (1947). Assigned to the Evergreen Formation by Jensen et al. (1964). Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Mundrabilla 1:250k sheet area.|Fine to coarse grained, cross bedded, quartzose sandstone with carbonaceous siltstone, shale and coal interbeds.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Boxwell Granodiorite|27116|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Boxwell Suite|69438|Lopingian|252||isotopic, Rb/Sr|intrusion|Lopingian|256.6|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||QLD|No|42748|42748|Stroud J.|22-NOV-91|||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. In Geology of Queensland 2013, p456,457. See also misspelt Boxwell Granite. GSNSW seamless lists this unit as early Triassic in spite of Permian geochron results.|Dark grey, medium to coarse-grained, equigranular, hornblende-bearing monzodiorite and quartz monzodiorite; granodiorite.|intermediate intrusive rock|||Y|I-type|20-AUG-23
Boxwell Suite|69438|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Boxwell Supersuite|69437|Permian||||intrusion|Permian||||||||No|63748||Mark Dawson (NSWGS)|08-JUL-05|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. To be used in reclassification of NSW / QLD granites by P.Blevin.||igneous intrusive rock|||Y||09-AUG-23
Boxwell Supersuite|69437|||||Yes|Supergroup|Formal|Resvd name published|Briefly described|||||Permian||||intrusion|Permian||||||||No|63748||Mark Dawson (NSWGS)|08-JUL-05|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. To be used in reclassification of NSW / QLD granites by P.Blevin.|Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Boyd Volcanic Complex|27117|Eden Rhyolite|5960|||Yes|Group, Suite|Formal|Resvd name published|Defined|||Gabo Suite|6947|Frasnian||||eruption|Givetian|395|4|inferred|||1500|NSW|Yes|40646|22815|Fergusson C.L., Cas R.A.F., Crook K.A.W., Powell C.McA. and others|03-MAY-78|Hawke, J.|27-SEP-78|Replaced Eden Rhyolite in 1979, and Paradise Porphyry.  Also replaces Lochiel Formation and Bunga beds.  Also defined in Bega-Mallacoota 1:250000 Geological Sheet SJ/55-4, SJ/55-8: Explanatory Notes (1994).  Age is mostly Frasnian, but the former Bunga beds were probably Givetian. Interbedded with sediments containing fish faunas.|Acid volcanics, basalts; quartz porphyries and minor sediments.|acid volcanic rock|basic volcanic rock||N|A-type|17-JAN-23
Brackendale Metamorphics|2470|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Coffs Harbour Association|38341|||Carboniferous||||deposition|Carboniferous||||||||No|31694|||||||Lithic arenite, slate, biotite schist, migmatite, rare chert|siliciclastic sedimentary rock|metasedimentary siliciclastic rock|accretionary wedge|N||17-JAN-23
Bradfordville Volcaniclastic Member|70026|Corrinyah Volcaniclastic Member|69889|||Yes|Member, phase|Formal|Other new published name|Defined|Gundary Volcanics|69883|||Lochkovian|414|4|inferred, overlying unit|eruption|Lochkovian||||||850|NSW|No|64238||Thomas, O. (GSNSW)|31-JAN-06|||New name replaces Corrinyah Volcaniclastic Member (per email from O.Thomas 31/1/06) PP. Part of the Mount Fairy Group.|Unstratified, crystal rich, vitriclast bearing rhyolitic volcanic sandstone, conglomerate and minor very fine-grained vitric tuff or mudstone; coarse grained volcaniclastic rocks have obvious K-feldspar.|acid volcanic rock|||N||17-JAN-23
Bradleys Creek Metamorphic Complex|34467|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Middle Devonian|||||Silurian||||||||No|22721|22721||||||Metamorphics|metamorphic rock|||N||17-JAN-23
Braidwood Granodiorite|2487|Braidwood Granite|2486|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||Braidwood Suite|31487|Pragian|410.8|3.2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lochkovian|411.3|2.6|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|46967|40276|||||1986 redefinition of Braidwood Granite. Age also constrained by intrusive relationship with dated Members of  Long Plains Volcanics. K/Ar age of 415 Ma is too old.|Hornblende-biotite granodiorite, some with euhedral hornblende phenocrysts (porphyritic phase). Some mafic quartz diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Braidwood Suite|31487|||||Yes|Group, Suite|Formal|Other new published name|Defined|||Candelo Supersuite|3452|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Is this one-pluton suite still needed?|Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Branch Swamp Monzogranite|82370|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Surface Hill Suite|82657|Middle Triassic|||inferred||Middle Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023.|Pink, medium-grained, equigranular granite. I-type.|acid intrusive rock|||Y|I-type|23-AUG-23
Brandy Springs beds|26422|Brandy Springs Beds|24761|||Yes|Formation, beds|Informal|Variation of published name|Described|Sandon Association|67995|||Carboniferous|||||Devonian||||||||No|41347|||||||||||N||17-JAN-23
Brangan Volcanics|31717|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Jindalee Group|27440|||Pridoli|||inferred|intrusion|Ludlow|||inferred|||||No|22434||Wallace D.|22-SEP-97|||Parkes 1997 prelim. 1:100k. Originally reserved as Silurian, of Forbes Group.  Previously part of the now discarded "Hoskins Formation".|Fine- to medium-grained metadolerite and basalt|basic intrusive rock|basic volcanic rock||N||17-JAN-23
Branxton Formation|2498|Branxton Subgroup|2501|||Yes|Formation, beds|Formal|Variation of published name|Defined|Maitland Group|11039|||Wordian|267|||deposition|Wordian|272|3|isotopic, U/Pb-Pb/Pb ion probe|||1300|NSW|No|43440|43447|||||Defined 1966. Contains fossiliferous unit known as "Fenestella Shale".  In Lochinvar and Belford Dome areas this unit is subdivided into lower Elderslie Fm., Fenestella Shale, Belford Fm. and Muree Sst.|Conglomerate, sandstone, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Brassington mass|32509|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Dundee Rhyodacite|5829|||Late Permian|||||Permian||||||||No|42378||||||Informal subdivision of Dundee Rhyodacite.|||||N||17-JAN-23
Brawlin Formation|40188|Blowering Formation|27671|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Silurian||||deposition|Early Silurian|||||||NSW|No|50191|60280|Basden, H.|04-FEB-04|||Formerly included in the Blowering Formation.  Laterally equivalent to Jackalass Slate and Bumbolee Creek Formation of the Tumut area.|Belt of sedimentary rocks and lesser volcanic rocks immediately west of the Jindalee Group and just east of Cootamundra.|siliciclastic sedimentary rock|||N||17-JAN-23
Braymont Coal Member|21318|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian||||deposition|Artinskian||||||||No|70791||C.R.Weber|04-AUG-77|||Notification of change of ORIGN. This name revived by GSNSW 14-JUN-2012. Thickness ranges between 2-9 m, greatest thickness at Boggabri and Maules Creek, splitting and coalescence to the east|Coal: Typically high volatile, very low ash (>10% raw), bituminous (steaming) coal,|organic rich sedimentary rock|||N||17-JAN-23
Brayton Limestone Member|74536|||||Yes|Member, phase|Formal|Other new published name|Defined|Longreach Volcanics|36331|||Lochkovian|||biozone|deposition|Lochkovian|||biozone|||30|NSW|No|64238||||||Extensively quarried as a source of marble and lime in the nineteenth century. It hosts the first recorded marble quarry in New South Wales as noted by Surveyor-General Mitchell in 1838 and was extensively quarried as a source of lime (Carne & Jones 1919; Lishmund et al. 1986).|White to cream bedded fossiliferous limestone recrystallised to marble.|metasedimentary carbonate rock|||N||17-JAN-23
Breadknife Trachyte Member|81965|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mount Naman Formation|81948|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Pale orange-white lava deposits and intrusions that contain small, variable-sized crystals and are faintly banded.|intermediate volcanic rock|||N||17-JAN-23
Break O'Day Amphibolite|23416|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Girilambone Group|27158|||Darriwilian|||||Tremadocian||||||||No|42566||D.J.Pogson|16-AUG-77|||Card [?]|Mafic amphibolite|metamorphosed basic igneous rock|||N||17-JAN-23
Breckin Ignimbrite Member|25809|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Mowbray Formation|26060|||Visean||||eruption|Visean||||||40|NSW|Yes|31228|31228|Hamilton G, Hall G.|12-MAR-72|NSW SNSC|||Grey andesitic and red rhyodacitic ignimbrite|acid volcanic rock|||N||17-JAN-23
Bredbo Group|21321|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Late Silurian||||deposition|Late Silurian||||||||No|22815||Lewis P.C.|07-APR-94|||Bega 1:250 000 sheet area. Not VAR on Bredbo River Granite.|Mudstone, slate, sandstone, epiclastic volcanics; silicic volcanics mainly ignimbrite, minor sediments.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Bredbo River Monzogranite|76943|Bredbo River Adamellite|2522|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Varies from massive, fine-grained and porphyritic to coarse-grained equigranular biotite monzogranite, hornblende-biotite monzogranite. Sporadic metasedimentary xenoliths|acid intrusive rock|||Y|I-type|29-SEP-23
Breeza Coal Member|76052|Breeza coal seam|70100|||Yes|Member, phase|Informal|Variation of published name|Mentioned|Clare Sandstone|30032|||Late Permian||||deposition|Late Permian||||||||No|65116||||||Within Black Jack Group, but not clear what 'Formation' it is part of in RefID 65116. Possibly Clare Sandstone, Brothers Subgroup (also shown as Sequence D2 in refID 65116). Name to be used by GSNSW [10/7/12 on advice from J. Greenfield and G. Colquhoun, (GO'C)]. Used in GSNSW seamless geology dataset 2021, as part of Clare Sandstone, Coogal Subgroup.|Coal, internally characterised by five lithotype profiles, primarily dull plies in lower two sections, bright plies in the mid section and variably dull-bright plies uppermost sections, carbonaceous claystone layers separate sections|organic rich sedimentary rock|siliciclastic sedimentary rock||N||30-MAR-23
Brevelon Tank Quartzite|79467|||||Yes|Formation, beds|Formal|Other new published name|Described|Girilambone Group|27158|||Middle Ordovician|||||Lower Ordovician||||||||No|70602|||||||Quartzite, poorly sorted subrounded to angular quartz clasts with undulose extinction, in a matrix of finer aligned quartz grains and minor muscovite grains that define a foliation.|metasedimentary siliciclastic rock|||N||17-JAN-23
Brewarrina Granite|78458|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lochkovian||||intrusion|Ludlow|420.9|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|69042||||||See also Brewarrina granite. Thomson Orogen? ?Low-magnetic intensity. Contains significant inherited and xenocrystic zircons - the youngest two of which yielded a U-Pb age of ~467 Ma [RefID 69002 (2010)].|White, coarse-grained, equigranular, biotite- and cordierite-bearing alkali-feldspar granite. Crosscut by aplite dykes. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Brewarrina granite|78371|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Lower Devonian||||magmatic crystallisation|Pridoli|420.9|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|69002||||||Occurs in the eastern Thompson Orogen. Contains significant inherited and xenocrystic zircons - the youngest two of which yielded a U-Pb age of ~467 Ma. S-type granite.|White, coarse-grained, equigranular, biotite- and cordierite-bearing alkali-feldspar granite. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Briarlee Granite|35709|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Pridoli||||intrusion|Ludlow||||||||No|50231||Pogson D.|05-FEB-01|||BOOROWA 1:100 000 sheet area. Age: probable Late Silurian. Part of the Wyangala Batholith.|Pinkish-cream to leucocratic, medium- to coarse-grained, massive to locally foliated,  equigranular to porphyritic biotite granite and granodiorite.|acid intrusive rock|||Y||17-JAN-23
Briars Sharrow Gabbro|78993|||||Yes|Formation, beds|Formal|Reserved|Described|||||Pridoli||||intrusion|Pridoli||||||||No|71069||Deyssing, L. (GSNSW)|13-JAN-15|||Named after Briars Sharrow Road. A pluton of the Thurralilly Suite. Published in/with the Captains Flat Special 1:50 000 map and notes. [GO'C 13/1/2015]. Used in GSNSW seamless geology dataset 2021.|Grey to green, massive, medium- to very coarse-grained, gabbro, with some fine- to medium-grained dolerite.|basic intrusive rock|||Y||21-JUL-23
Bribbaree Formation|21325|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Llandovery||||deposition|Upper Ordovician||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Probable equivalent of Kirribilli Formation.|Siltstone, sandstone, chert, mudstone|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Bridge Creek Limestone Member|2538|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bagdad Formation|875|||Llandovery||||deposition|Llandovery||||||36||No|43385|||||||Contains abundant corals, algal remains, brachipods, bryozoans, conodonts and gastropods.|carbonate sedimentary rock|||N||17-JAN-23
Bridle Creek Dolerite|36405|Bondo Dolerite|29424|||Yes|Member, phase|Formal|Resvd name published|Defined|Monaro Volcanics|12067|||Lutetian||||intrusion|Lutetian|44.5|.6|isotopic, K/Ar|||5||No|50126|50126|Sharp K. ph 02 6452 2914|19-SEP-01|||Distinct flow of different age from Bondo Dolerite.  Age: K/Ar dated as 44.5+/-0.6Ma.|Relatively coarse-grained basaltic rock.|basic intrusive rock|||Y||17-JAN-23
Brigalow Formation|30030|Brigalow|21328|||Yes|Formation, beds|Formal|Resvd name published|Described|Brothers Subgroup|30028|||Late Permian||||deposition|Late Permian||||||28||No|43194||||||Used in GSNSW seamless geology dataset 2021.|Fining-up sequence of medium to coarse-grained quartzose sandstone and siltstone.|siliciclastic sedimentary rock|||N||30-MAR-23
Bringelly Shale|2570|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Wianamatta Group|19967|||Middle Triassic||||deposition|Middle Triassic||||||257|NSW|No|43365|35690||||||Shale, carbonaceous claystone, laminite, lithic sandstone, rare coal|siliciclastic sedimentary rock|||N||27-AUG-23
Brisbane Meadows Sandstone Member|70236|||||Yes|Member, phase|Reserved|Reserved|Reserved|Tangerang Formation|27094|||||||deposition|||||||||No|||Simpson, C. (GSNSW)|30-MAR-06|||To be included in the Tangerang Formation.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Brittlejack Granite|29525|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Lewis Ponds Suite|77126|||Mississippian||||intrusion|Mississippian|||||||NSW|No|43653||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area|Biotite muscovite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Britton Coal Member|80143|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Broad Gully Formation|2589|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Late Permian||||deposition|Late Permian||||||||No|43385||||||See also "Broad Gully Formation".|||||N||17-JAN-23
Brogans Creek Limestone Member|77058|Brogans Creek Limestone|29514|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Carwell Creek Formation|3712|||Lower Devonian||||deposition|Lower Devonian||||||||No|70297||Greenfield, J. (GSNSW)|10-JUL-12|||Published in GSNSW seamless geology. Lith desc from 2023 version.|Medium- to thin-bedded limestone. Occasionally richly fossiliferous.|carbonate sedimentary rock|||N||27-SEP-23
Brogans Rhyodacite Member|70467|Brogans Tuff Member|30922|||Yes|Member, phase|Formal|Variation of published name|Defined|Woodton Formation|31412|||Permian||||eruption|Permian|290|3|isotopic, U/Pb-Pb/Pb ion probe|||8||No|62095|62095|||||Age: 290.5+/-2.8Ma (Asselian). Thickness: ~8m. See also the abbreviated Brogans Rhyodacite.|Red to pink rhyodacitic lava flow with small folds is interbedded with multicoloured siltstone, volcanolithic sandstone and pebble to cobble conglomerate.|acid volcanic rock|siliciclastic sedimentary rock|extensional continental backarc|N||17-JAN-23
Brogo Granodiorite|30475|Brogo Granite|2611|||Yes|Formation, beds|Formal|Variation of published name|Described|||Brogo Suite|30474|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Brogo Suite|30474|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Cobargo Supersuite|4250|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Broken Cart Granodiorite|23424|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Young Suite|31669|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|36441|45147|D.Wyborn|24-SEP-76||||Granodiorite, porphyritic granodiorite, minor monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Broken Hill Group|2617|Broken Hill Suite|34509|||Yes|Group, Suite|Formal|Variation of published name|Defined|Willyama Supergroup|20135|||Statherian|1685|3|||Statherian|1693|3||||2000|NSW|No|38969|39662|||||Olary / Broken Hill Province. Curnamona Province. Willyama Fold belt. Hosts the Broken Hill ore body in psammopelitic metasediments in a transitional position between upper and lower sections of Willyama Supergroup. Age is effectively constrained by Plumbago Formation at 1693+/-3Ma, and Hores Gneiss at 1685+/-3Ma (RefID: 64741, p309).|Metasediments, garnetiferous quartzo-feldspathic gneiss, amphibolite, minor garnet and gahnite-rich rocks, banded iron formation.|foliated metamorphic rock|high grade metamorphic rock||N||17-JAN-23
Broken Range Group|26255|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|Cobar Supergroup|27673|||Lower Devonian||||deposition|Late Silurian||||||2300|NSW|No|37772|41126|E.Scheibner|04-JAN-82|||Hosts Au mineralisation in the Mount Solar mine.|Thin to thick-bedded, massive or graded, parallel-laminated and ripple cross laminated, poorly sorted, fine to medium sometimes coarse-grained, quartzose to lithic sandstone and interbedded siltstone. Minor pebbly sandstone, conglomerate, rhyolite lava.|siliciclastic sedimentary rock|||N||17-JAN-23
Bromley Hills Formation|35393|Rosenthal Creek Formation|16352|||Yes|Formation, beds|Formal|Variation of reserved name|Described|Silverwood Group|16903|||Upper Devonian||||deposition|Middle Devonian||||||1720||No|61392||van Noord K.A.A.|05-APR-00|||Used in PhD. Was to be replaced by Mindip Formation for publication. See also Mendip Formation, Rosenthal Creek Formation. Age: younger than Early Devonian. Warwick, Allora 1:100k sheet areas, 9341, 9241. Volcaniclastic conglomerate and breccia, sandstone, siltstone and mudstone. Rare volcanics.|Pebbly turbiditic arenite and mudstone with coarse debris flows.|medium-coarse grained siliciclastic rock||island arc|N||17-JAN-23
Bronxhome Formation|29574|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Llandovery||||deposition|Upper Ordovician||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area.|Siltstone, sandstone, shale, chert|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Brooklana beds|28402|Brooklana Beds|25813|||Yes|Formation, beds|Informal|Unknown or process pending|Fully described|Coffs Harbour Association|38341|||Westphalian||||deposition|Tournaisian||||||1000||No|37489||||||See also Brooklana Formation, misspelling Brookland Beds, and definition for Brooklana Beds.|Thinly bedded siliceous mudstone and siltstone with rare lithofeldspathic wacke, locally chert, jasper, magnetite-bearing chert and metabasalt.|siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Brooklyn Conglomerate Member|34254|||||Yes|Member, phase|Formal|Variation of published name|Described|Tangerang Formation|27094|||Pragian||||deposition|Lochkovian||||||60||No|22678||||||Of Jones et al. 1986.  Relationship with the name Brooklyn Formation uncertain?|Massive to diffusely bedded cobble to boulder conglomerate, containing clasts to 60cm of quartz arenite, siltstone and mudstone, increasing interbeds of graded quartz arenite towards the top.|siliciclastic sedimentary rock|||N||17-JAN-23
Brookong Formation|21339|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kopyje Group|28654|||Lochkovian||||deposition|Pridoli|425|7.3||||||No|730|43774|Glen R.|21-APR-88|||(Glen 1994). Kopyje Shelf.|Thinly bedded siltstone and fine quartzose to lithic sandstone, basal boulder to granule polymictic conglomerate|siliciclastic sedimentary rock|||N||04-AUG-23
Brooman Basalt|83459|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Chattian|27.4|.3|isotopic, K/Ar||Rupelian|28|.3|isotopic, K/Ar|||||No|||||||Of Spry et al. (1999). Said to be of South Coast Volcanic Complex (invalid name). Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Alkaline transitional tholeiitic basalt with olivine phenocrysts and microphenocrysts of augite in a plagioclase groundmass which may contain volcanic glass. Vesicles are commonly infilled with calcite, palagonite and Fe-oxides.|basic volcanic rock|||N||17-JAN-23
Broonie Coal Member|26426|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Burnamwood Formation|25821|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Brothers Creek Granite|29587|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Lewis Ponds Suite|77126|||Mississippian||||intrusion|Mississippian|||||||NSW|No|43653||Wyborn D. for Lachlan NGMA project|14-AUG-95|||Bathurst 1:250 000 sheet area|Biotite muscovite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Brothers Subgroup|30028|Brothers|21340|||Yes|Subgroup|Formal|Resvd name published|Briefly described|Black Jack Group|1798|||Late Permian||||deposition|Late Permian||||||||No|43194||||||Used in GSNSW seamless geology dataset 2021.|Fining-up sequences of fine-medium grained quartzose and lithic sandstone, siltstone and conglomerate with worm burrows|siliciclastic sedimentary rock|||N||30-MAR-23
Brougham Coal Member|2654|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|39288||||||Greta Coal Measures, Sydney Basin. Defined in 1975 Rec NSW Geol Survey Record 16(1) p29.|Coal and carbonaceous shale, occurs as two splits separated by sandstone, shale or carbonaceous shale|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Broughton Formation|2659|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Shoalhaven Group|16844|||Late Permian|255|||eruption|Late Permian||||||370||No|38690||||||Same as Budgong Sandstone of the Wollongong area?  Superseded by Gerringong Volcanics? - see unpublished NSWGS GIS data, 2005. NO, interbedded with Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Volcaniclastic sandstone, conglomerate, mudstone.|siliciclastic sedimentary rock|||N||02-SEP-23
Broula Granite|29521|Bumbaldry Granite|2936|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Boggy Plain Supersuite|2092|Emsian||||intrusion|Emsian|||||||NSW|No|43642||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area|Hornblende biotite orthopyroxene granite|acid intrusive rock|||Y|I-type|17-JAN-23
Browning Vale Andesite Member|28233|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baldwin Formation|949|||Famennian||||eruption|Famennian|||||||NSW|No|38802|38802||||||Micro-porphyritic vesicular andesite (emplaced as flows), interbedded with argillite, sandstone and conglomerate|intermediate volcanic rock||forearc|N||17-JAN-23
Brownmore Sandstone Member|23426|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||950||No|40883||D.Lindley|14-JUN-83|||New member of the Flagstaff Sandstone.  Max. thickness in type section: 830m.|Brown, massive, crossbedded or laminated lithic sandstone with interbeds of conglomerate, mudstone and lenses of shelly and coralline limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Browns Creek Intrusive Complex|77664|Carcoar Granodiorite|3588|||Yes|Group, Suite|Informal|Other new published name|Described|||||Lower Devonian|407|4|isotopic, Rb/Sr||Silurian|437.1|5.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|67806||||||The Browns Creek Clay (unit number 2688) in Victoria has precedence.  The Browns Creek Intrusive Complex Incorporates the Carcoar Granodiorite, the Long Hill Diorite and the Browns Creek dykes (Mine Dyke Group). The browns Creek Intrusive Complex is not used by GSNSW in their seamless geology 2021. They still use Carcoar Granodiorite (incorporating Long Hill Diorite).|||||Y||17-JAN-23
Bruinbun Granite|2701|||||Yes|Formation, beds|Formal|Other new published name|Described|||Bathurst Suite|31450|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|43515||||||Bathurst 1:250 000 sheet. Intrudes the Chesleigh and Cookman Formation and undifferentiated Turondale and Waterbeach Formations.|Biotite granite|acid intrusive rock|||Y||17-JAN-23
Brungle Creek Metabasalt|23428|Bauld Hill Basic Formation""|1272|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Jindalee Group|27440|||Pridoli||||eruption|Ludlow||||||||No|37529|22638|K.Crook|16-APR-75|||Also supersedes "Bald Hill Formation", Brungle Creek Volcanics.|Basalts, basaltic hyaloclastics, cherts, polymictic conglomerate.|basic volcanic rock|sedimentary rock||N||06-SEP-23
Brungle Creek Metabasalt, Wyangle Formation|42300|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Early Silurian||||deposition|Early Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Metabasalt, volcaniclastic sandstone and siltstone, interbedded slate, siliceous slate; minor chert, calcarenite, andesitic tuff and lava; rare marble|metamorphosed basic igneous rock|siliciclastic sedimentary rock||N||17-JAN-23
Brusches Formation|35364|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|23185|||||||||||N||17-JAN-23
Brushy Hill Limestone Member|2726|Brushy Hill Limestone|27350|||Yes|Member, phase|Formal|Resvd name published|Defined|Dangarfield Formation|25714|||Visean||||deposition|Tournaisian||||||22|NSW|No|32866|35245||||||Lower cross-bedded oolith skeletal grainstone and an upper more richly fossiliferous thinly bedded oolith and skeletal grainstone - separated by thin mudstones.|carbonate sedimentary rock|||N||17-JAN-23
Bruxner Granodiorite|82371|Bruxner Monzogranite|39023|||Yes|Formation, beds|Formal|Variation of published name|Described|||Clarence River Supersuite|36112|Late Permian|||||Late Permian|256|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023.|Grey, fine- to medium-grained, equigranular, hornblende-biotite-(pyroxene) quartz diorite to granodiorite and pink, hydrothermally altered leucocratic hornblende-biotite monzogranite. Detailed descriptions. I-type.|acid intrusive rock|||Y|I-type|23-AUG-23
Bryden Formation|2732|Bryden Beds|2731|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Toogoolawah Group|18352|||Middle Triassic||||deposition|Lower Triassic||||||1500||No|30302|||||||Conglomerate, sandstone, shale, minor tuff.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Brymedura Sandstone|2734|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Black Rock Subgroup|28374|||Famennian||||deposition|Famennian||||||270|NSW|No|43512|43512||||||Coarse pebbly quartz sandstone with minor finer grained sandstone near the base.|siliciclastic sedimentary rock|||N||17-JAN-23
Buccleuch Formation|30504|Buccleuch beds|2742|||Yes|Formation, beds|Formal|Variation of published name|Described|Renmark Group|16036|||Rupelian||||deposition|Late Eocene||||||||No|43195||||||May be in part lateral equivalent of Olney Formation, Renmark Group.|Bryozoal and glauconitic limestones, bryozoal clayey sand, and black pyritic/ferruginous clay.|carbonate sedimentary rock|||N||17-JAN-23
Buccleugh Granite|2744|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Buccleugh Suite|31581|Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Buccleugh Suite|31581|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Buchan Group|2754|Buchan Limestone|2756|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Devonian||||deposition|Lower Devonian||||||||No|43431||||||Formerly known as Buchan Limestone, Buchan Series or series, Upper Buchan beds and Bindi Limestone.|Nonmagnetic limestones, dolomites and calcareous silts.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Buchanan Maitland Coal Member|77601|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Alnwick Formation|21118|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.Used in GSNSW seamless geology dataset 2021.|Coal: dull and bright bands, minor stoney bands upseam; carbonaceous shale, coaly shale, grey hard mudstone, brown soft claystone, minor very fine-grained sandstone beds and partings|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Buchargingah Granite|2762|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Koetong Suite|9703|Silurian||||intrusion|Silurian||||||||No|42726|||||||Composite two-mica granite that includes fine- and medium- to coarse-grained phases. Finer phase may have pegmatitic and/or epidote pods or veinlets.|acid intrusive rock|||Y||17-JAN-23
Buckambool Sandstone|27639|||||Yes|Formation, beds|Formal|Other new published name|Defined|Winduck Group|25683|||Emsian||||deposition|Pridoli|421|10|||950|1000|NSW|No|35925|43032|R.A.Glen|12-APR-79|||Winduck Shelf. Time-transgressive basal and upper boundaries. Contains age-diagnostic brachiopod and other fossils.|Interbedded 'flaggy' quartz sandstone and recessive siltstone; rich in shelly fossils locally.|siliciclastic sedimentary rock|||N||04-AUG-23
Buckaroo Conglomerate|2775|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Knowles Group|30853|||Upper Devonian||||deposition|Upper Devonian||||||420||No|43476|23170|||||Dubbo 1:250 000 sheet area. Formerly considered part of Lambie Group.|Quartz-rich purple conglomerate, quartz arenite and red mudstone interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Buckburraga Slate|2778|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crudine Group|4970|||Lower Devonian||||deposition|Lower Devonian||||||300|NSW|Yes|29903||Bowman H.N. (after Gemuts I.)|14-SEP-72|NSW SNSC||First included in the Burraga Beds (now Burraga Group). Max. thickness increased in RefID 22857.|Consists of thinly bedded, laminated, grey-green shale and black slate with minor carboneous shale lenses.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Buckenbowra Andesite Member|78492|||||Yes|Member, phase|Informal|Variation of published name|Described|Comerong Volcanics|25853|||Upper Devonian||||eruption|Middle Devonian||||||||No|66768||||||This name is invalid. See Buckenbowra Granodiorite.||intermediate volcanic rock|||N||17-JAN-23
Buckenbowra Granodiorite|26429|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Moruya Suite|12371|Emsian|384.6|7.9||intrusion|Pragian|395.8|8.1||||||No|35248||||||See also the informal Buckenbowra Granite, and Buckenbowra Andesite Member.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Buckendoon Sand Member|2780|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|40726|||||||Sand|sediment|||N||17-JAN-23
Buckets Gap Formation|26430|Buckets Gap formation|2786|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Carboniferous||||deposition|Carboniferous||||||610||No|34072|44244||||||Mudstone interbedded with fine lithic arenites; randomly pebbly.|siliciclastic sedimentary rock|||N||17-JAN-23
Bucketts Way Coal Member|77069|Bucketts Way seam|38308|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Dog Trap Creek Formation|23550|||Late Permian||||deposition|Late Permian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin.|High- and medium-volatile bituminous dull coal, two coal bands separated by a stoney band|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bucketts Way seam|38308|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Gloucester Coal Measures|7452|||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal . To be replaced by Bucketts Way Coal Member [GSNSW July-2012]|Coal|organic rich sedimentary rock|||N||17-JAN-23
Buckingbong Granite|80755|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Silurian|||||Silurian|430||inferred||||NSW|No|71889|||||||Medium- to coarse-grained, bioitite-muscovite granite.|acid intrusive rock|||Y||06-SEP-23
Buckleys Lake Monzogranite|76944|Buckleys Lake Adamellite|2802|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Delegate Supersuite|31499|Lower Devonian|415.6|4.4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Silurian|417.5||isotopic, Rb/Sr|||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. See also RefID 67060 p505. Published in GSNSW seamless geology.|Large-grained, pink monzogranite, equigranular texture at margin to porphyritic in the centre|acid intrusive rock|||Y|I-type|29-SEP-23
Buckleys Lake Suite|31501|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Delegate Supersuite|31499|Late Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Budderoo Lamprophyre|2811|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Triassic|||||Upper Triassic||||||||No|43346|43346||||||Lamprophyre|exotic composition igneous rock|||Y||19-JUL-23
Buddigower Granite|23432|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|42726||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.|Foliated biotite granite|acid intrusive rock|||Y||17-JAN-23
Buddong Volcanics|2812|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boraig Group|24753|||Lower Devonian||||eruption|Lower Devonian||||||1060||No|60086|||||||Rhyolitic tuff, agglomerate.|acid volcanic rock|||N||17-JAN-23
Budgee Formation|30046|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|43188||||||Probably obsolete?|||||N||17-JAN-23
Budgery Sandstone Member|35306|Budgery Sandstone|2813|||Yes|Member, phase|Formal|Variation of published name|Redefined|Narrama Formation|73364|||Darriwilian||||deposition|Tremadocian|497|7|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|||NSW|No|23173||||||Appears on the Cobar Metallogenic map as having no named Formation parent, just  "massive white quartzite and micaceous quartzite (includes Budgery Sandstone Member)". Is now (2013) to be included in Narrama Formation. Maximum depositional age. No type section; type area is at Trig Hill Lat. -31.263263 degrees, Long. 146.895719 degrees, and nearby rises, just W of Girilambone town.|Massive to well-foliated, fine- to medium-grained quartz-rich metasandstone to quartzite; total lack of fine-grained intercalations. Metamorphic mica rare to minor; locally gives the rock a schistose aspect. Greenschist facies regional metamorphism.|metasedimentary siliciclastic rock|||N||17-JAN-23
Budginigi Ignimbrite|80312|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Culcairn Group|80310|||Lower Devonian|||||Lower Devonian||||||||No|73457||Bull, K., Gilmore, P. (GSNSW)|17-NOV-17|||East Riverina Project. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Published in GSNSW seamless geology.|Subaerial. Includes felsic lavas and subvolcanic intrusions, pyroclastic deposits including crystal-rich ignimbrite and minor hyaloclastite.|acid volcanic rock|||N|S-type|26-SEP-23
Budgong Sandstone|2815|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Shoalhaven Group|16844|||Wuchiapingian||||deposition|Capitanian||||||370||No|29900||||||Probably superseded by Broughton Formation. Age said to be: 264-263 Ma, Late Permian, in 2004 reference.|Red, brown, grey lithic sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Budhang Chert Member|73654|Budhang Chert|73670|||Yes|Member, phase|Informal|Other new published name|Briefly described|Abercrombie Formation|69898|||Floian|||inferred, biostratigraphic correlation|deposition|Tremadocian|||inferred, biostratigraphic correlation|||||No|63279||||||Shown in 2013 Bathurst metallogenic map RefID 70297 as Member of Adaminaby Group [?] at the same time as the [former] parent Triangle Formation is shown as part of the Cabonne Group. Correlated with Mummel Chert Member & thus included in Abercrombie Formation. Possibly replaced by Budhang Chert, but GSNSW seamless Geology 2021 uses Budhang Chert Member. Age from  late Lancefieldian to early Bendigonian conodont assemblages present in the unit.|||||N||17-JAN-23
Budthingeroo Granite|24777|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Buff Point Coal Member|78863|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Catherine Hill Bay Formation|3791|||Lopingian||||deposition|Lopingian||||||||No|68711||||||Name abandoned. Used by 1975 Standing Committee on Coalfield Geology NSW. See also other variations of Buff Point. Rocks were [1999] part of Moon Island Beach Formation. Original name reinstated, as Member of Catherine Hill Bay Formation. Updated from GSNSW seamless geology dataset 2021.|Coal with siltstone and claystone bands.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Buffers Creek Formation|36963|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Cisuralian||||deposition|Mississippian||||||1500||No|23720||||||Dorrigo - Coffs Harbour 1:250 000 sheet|Siltstone, lithic wacke, diamictite, felsic tuff, minor metabasalt and dolerite|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Buggary Granodiorite|2828|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Buggary Suite|31651|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|35263|41905||||||Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Buggary Suite|31651|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Buggs Creek Volcanic Member|2830|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Berrico Creek Formation|1516|||Visean||||eruption|Visean||||||45||No|32868||||||See also Buggs Creek Ignimbrite, which may replace this name, but GSNSW Seamless geology still uses Buggs Creek Volcanic Member in 2021.|Pink. purple to fawn rhyodacitic ignimbrite with minor andesite and volcanic breccia.|acid volcanic rock|||N||02-JUN-23
Bugs Ridge Granite|2835|Bugs Ridge Adamellite|21353|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|42726||||||Wyangala Batholith.|Foliated biotite granite, leucogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Bugtown Tonalite|23434|Bugtown tonalite|2837|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|36443|45147|D.Wyborn|24-SEP-76||||Tonalite, granodiorite|acid intrusive rock|||Y||17-JAN-23
Bugwah Formation|29529|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Holocene|.006||luminescence|deposition|Upper Pleistocene|.013||luminescence|||12|NSW|No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area.|Unconsolidated yellow-grey to dark grey sand, sandy silt, silt, clayey silt, silty clay and clay; sparse carbonate nodules.|regolith|||N||17-JAN-23
Bukalong Granite|28410|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Bukalong Suite|30476|Lower Devonian||||intrusion|Late Silurian|420||isotopic, Rb/Sr|||||No|42726||||||Reserved as Bukalong Granodiorite. Referred to as "Bukalong Adamellite" by Beams (1980 unpubl.). Rb/Sr Age: 420Ma.|Biotite granite, monzogranite|acid intrusive rock|||Y||17-JAN-23
Bukalong Suite|30476|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Tonghi Supersuite|18338|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Bukkulla Member|77321|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Ashford Coal Measures|705|||Cisuralian||||deposition|Cisuralian||||||||No|68005||||||Contains the Bukkulla seam. Apparently not current in NSW in June 2012.|||||N||17-JAN-23
Bulahdelah Formation|27727|Bulahdelah Beds|2844|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Kungurian||||deposition|Kungurian||||||1000||No|43447|||||||Grey-brown, massive-thickly bedded lithic sandstone with occasional pebble stringers and poorly exposed siltstone and claystone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Bulbodney Creek Intrusive Complex|2845|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Fifield Suite|77333|Upper Ordovician|||inferred||Katian|448|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|48958||||||Used in GSNSW seamless geology dataset 2021, 2023.|Olivine-rich ultramafic rocks (entirely subsurface, defined by magnetic imagery and RAB drilling)|ultramafic igneous rock|||U||13-JUN-23
Bulga Complex|2852|Bulga complex|2854|||Yes|Group, Suite|Formal|Other new published name|Described|||||Bathonian||||eruption|Pliensbachian||||||||No|29698||||||Mullaley area. Used on the Surface Geology of  Australia, 1:1 million scale, New South Wales map.|Massive flows and lava domes of microsyenite, phonolitic trachyte and phonolite.|acid igneous rock|||N||17-JAN-23
Bulga Formation|27351|||||Yes|Formation, beds|Formal|Variation of published name|Described|Vane Subgroup|26973|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Singleton Coal Measures, Hunter Valley.  Not to be confused with the Bulgo Sandstone, a coastal unit of the Narrabeen Group.|Laminated siltstone and fine-grained sandstone with abundant burrows.|siliciclastic sedimentary rock|||N||17-JAN-23
Bulgas Monzonite|2857|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39331|||||||Monzonite|intermediate intrusive rock|||Y||17-JAN-23
Bulgo Sandstone|2863|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lower Triassic||||||100||No|43395||||||Not to be confused with Bulga Formation in the Singleton area.|Fine to medium-grained quartz-lithic sandstone with lenticular shale interbeds.|siliciclastic sedimentary rock|||N||19-JUL-23
Bulgoo Formation|2869|Bulgoo Sandstone|2871|||Yes|Formation, beds|Formal|Other new published name|Defined|Mulga Downs Group|26063|||Eifelian||||deposition|Emsian||||||2600|NSW|No|42467|41126|||||Possible correlative within this group to Naradhan Sandstone of Cocoparra Group.|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bullaganang Suite|74015|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Stanthorpe Supersuite|73988|Cisuralian|||||Cisuralian||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.||acid intrusive rock|||Y||17-JAN-23
Bullaganang Supersuite|74065|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Cisuralian|||||Cisuralian||||||||No|63748||||||Donchak et al (2013) incorporated this Supersuite into the Stanthorpe Supersuite; the authors of this volume however, note significant age ranges of the incorporated Supersuites and thus suggest this issue be revisited.|||||Y||17-JAN-23
Bullamalita Conglomerate|36336|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bindook Group|69879|||Pragian||||deposition|Lochkovian||||||||No|50234||Pogson D.|20-AUG-01|||GOULBURN 1:100 000 sheet area.|Cream to grey, matrix- to clast-supported boulder conglom. Clasts of qtz'ose sst., lithic-quartz sst., siltst., shale + quartz-feldspar-phyric rhyolite up to 60cm but predom. <30cm in a coarse-grained to granule-sized quartz-lithic volcaniclastic matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Bullanamang Porphyry|2885|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bredbo Group|21321|||Lower Devonian||||eruption|Late Silurian||||||500|NSW|Yes|32820|36413|Richardson S.J.||Hawke, J.|20-FEB-79|Parent stated as Colinton Volcanics in Bega-Mallacoota Explan Notes.|Porphyry, coarse grained intrusive rhyolite porphyry|acid intrusive rock|||Y||17-JAN-23
Bullawyarra Schist|2889|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Jindalee Group|27440|||Early Silurian|435.8|2.1|inferred, intrusive relationship||Ordovician||||||||No|29454||||||Tumut 1:100 000 map sheet. The minimum age is from Blacks Flat Diorite which intrudes this unit. This minimum age is compatible with biostratigraphic constraints (Bodorkos et al., 2013)|Metabasalt, minor cherty argillite.|metamorphosed basic igneous rock|||N||17-JAN-23
Bulldog Shale|2891|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Marree Subgroup|11374|||Albian|110||isotopic, U/Pb-Pb/Pb ion probe|deposition|Aptian|||biozone||200|340|SA|No|44658||||||Formerly of the Neales River Group. Subsurface age determinations have been based on spore-pollen and dinoflagellate assemblages and give an Early Cretaceous (Aptian to Albian) age, see Strzelecki 1:250k explan notes (1995) for details. Aquitard. Eromanga Basin. Diverse range of fossils.|Grey mudstone; bioturbated, fossiliferous, pyritic and shaly; minor silt to very fine-grained marine sandstone intervals. Mid-unit concretions and exotic lonestones; glendonites.|fine grained siliciclastic rock|||N||19-JUN-23
Bullenbalong Granodiorite|27120|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Lower Devonian|412|9|isotopic, Rb/Sr|intrusion|Late Silurian|||||||NSW|No|33780|35109|||||Rb/Sr age: 411.9+/-9.4 Ma|Biotite-rich granite|acid intrusive rock|||Y||17-JAN-23
Bullenbalong Suite|2895|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||Bullenbalong Supersuite|2897|Wenlock||||intrusion|Wenlock||||||||No|41563|||||||Rocks crowded with biotite and cordierite-rich enclaves.  The Bullenbalong pluton is of grey cordierite granites with the assemblage quartz, plagioclase, K-feldspar, red-brown biotite and cordierite with accessory apatite, zircon and monazite.|acid intrusive rock|||Y|S-type|17-JAN-23
Bullenbalong Supersuite|2897|||||Yes|Supergroup|Formal|Variation of published name|Fully described|||||Devonian||||intrusion|Silurian||||||||No|41133|||||||Predominantly granodiorite to tonalite; granite. Strongly peraluminous S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Bullenbung Granite|2899|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Pridoli||||intrusion|Telychian||||||||No|42726||||||Formal name not intended. Chappell et al. (1991). Mount Arthur area: south side of Murrumbidgee River. May be part of the Collingullie Granite. Used in GSNSW seamless geology dataset 2021.|Massive to foliated, medium-grained, cordierite-bearing biotite granite; fine- to medium-grained tourmaline–muscovite granite. Aplite and coarse-grained tourmaline- and/or muscovite-pegmatite veins and masses occur locally.|acid intrusive rock|||Y||24-JUL-23
Bulli Coal|2904|Bulli coal|2909|||Yes|Formation, beds|Formal|Variation of published name|Described|Sydney Subgroup|17602|||Changhsingian||||deposition|Changhsingian|252.6|.3|isotopic, U/Pb-Pb/Pb, TIMS|eruption||||No|29900||||||Illawarra Coal Measures.|Coal|organic rich sedimentary rock|||N||07-JUL-23
Bulliac Formation|70000|Bulliac beds|69997|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||deposition|Upper Devonian||||||||No|61766|||||||Characterised by thick structureless beds of blue-grey coarse-grained feldspathic lithic sst and breccia.|siliciclastic sedimentary rock|||N||17-JAN-23
Bullio Granite|2911|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Arthursleigh Suite|31547|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||To be formalised by GSNSW (Carol Simpson)[May 2011]|Granite, granodiorite, diorite, porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Bullio Granite, Bangadilly Granite|79795|Bullio Granite, Bangadilly Granite, Greenstead Granite|42280|||Yes|Formation, beds|Informal|Variation of published name|Unpublished|||Arthursleigh Suite|31547|Devonian|||||Devonian||||||||No|||||||Informal grouping of units to be used for Pre-Cz geology, NSW & Vic geological map. Name Greenstead Granite never published anywhere else. Changed to another name?|Granite, granodiorite, diorite, porphyry.|acid intrusive rock|||Y||17-JAN-23
Bullock Dray Spur Monzogranite|77629|Bullock Dray Spur Adamellite|21364|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)	|14-JUN-12|||Kosciuszko Batholith, Lachlan Orogen. Published in GSNSW seamless geology.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y||29-SEP-23
Bulls Camp Volcanics|2926|Bulls Camp volcanics|2927|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Gregra Group|7789|||Lower Devonian|||inferred, overlying unit|eruption|Lower Devonian|412|3|isotopic, U/Pb-Pb/Pb ion probe|||360|NSW|No|43515||||||Bathurst 1997 1:250 000 sheet. Formerly of Mumbil Group. See also Bulls Camp Rhyolite.  Age: 412+/-3 Ma (SHRIMP U-Pb).|Crystal-vitric, leucocratic rhyolitic or latitic tuff.|acid volcanic rock|||N||17-JAN-23
Bumballa Formation|33275|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bendoc Group|1474|||Sandbian|||inferred, biostratigraphic correlation|deposition|Sandbian|||inferred, biostratigraphic correlation|||300||No|24037|24037|Fergusson C.|28-OCT-98|||Near Goulburn. Previously included as an unnamed unit in the Bendoc Group. Maximum thickness: ~300m. Age based on conodonts and graptolites. Proposed in 2018 to include rocks of the Glen Fergus Mmeber|Olive to grey, buff and cream ripple cross-laminated to graded fine-grained sst. interbedded with grey to black laminated siltst. + mudstone with v. minor chert. Lesser intervals of fine- to coarse-gr. quartzose sandstone; 2 subunits - siltstone and shale|siliciclastic sedimentary rock|||N||11-SEP-23
Bumberra Formation|2937|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Knowles Group|30853|||Famennian||||deposition|Famennian||||||400||No|43476|23170|||||Dubbo 1:250k map area. Formerly considered part of Lambie Group. Defining ref (Dubbo Explan Notes, 1999) goves age as Late Devonian to Famennian. Max Age of Famennian comes from another strat article.|Quartz and sublithic arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Bumberry Formation|2939|||||Yes|Formation, beds|Formal|Other new published name|Defined|Nangar Subgroup|13778|||Famennian||||deposition|Famennian||||||770||No|43507|43507|||||Within the Hervey Group. Nangar Subgroup not used on the latest Goulburn 1:250k.|Repeated upward-fining cycles of white, thick-bedded, massive to planar-laminated, or x-bedded, moderately sorted, med.-gr., quartzose to lithic-quartz sst intervals passing upwards to red, thinly bedded sst+siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bumbolee Creek Formation|2947|Bumbolee Creek Beds|24786|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Early Silurian|428||isotopic, U/Pb|deposition|Early Silurian||||||||No|37529||||||See also Jackalass Slate.|Quartz-rich shale/slate, and fine sandstone; quartz-rich sandstone and fine lithic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Bunaleer Dacite Member|68915|Bunaleer Rhyodacite Member|39260|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Moscovian||||eruption|Bashkirian|315|3.5|isotopic, U/Pb-Pb/Pb ion probe|||460|NSW|Yes|50613|50613|Roberts J.|15-JAN-02|||Originally reserved as Bunaleer. Definition card help for Bunaleer Rhyodacite Member but published (with definition) as Bunaleer Dacite Member.|Grey, strongly flow foliated dacite; dome-like structure with interbedded glass, pyroclastics and conglomerate at flanks|acid volcanic rock|||N||17-JAN-23
Bundaburrah Granodiorite|27121|Bundaburrah Granite|2956|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|29907|29907|Bowman H.N.||Hawke, J.|03-JUN-76|Name to be restored on the 1999 Forbes 1:250 000 sheet.|Hypersthene-augite granodiorite.|acid intrusive rock|||Y||17-JAN-23
Bundamba Group|2963|Bundamba Beds|2958|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Middle Jurassic||||deposition|Norian|||||||QLD|No|39813|44510|||||Supersedes Tabulam Group of McElroy (1963) 97/28843. See also Lexicon.|Polymictic and quartz conglomerate, quartz and quartz-lithic sandstone, fossil wood, siltstone, claystone, minor coal.|siliciclastic sedimentary rock|||N||03-JUL-23
Bundanoon Granite|24789|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Bundarra Supersuite|67901|||||Yes|Supergroup|Formal|Variation of published name|Described|||||Cisuralian|285.3|3.2|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Pennsylvanian|298.5|2.9|isotopic, U/Pb-Pb/Pb ICP-MS|||||No|24513||||||Age: ~280Ma. Within southern New England Orogen. S-type granites of the New England Batholith. Used in GSNSW seamless geology dataset 2021.|Coarse-grained, equigranular to porphyritic granitic rocks; contains muscovite, cordierite and rare garnet; K-feldspar megacrysts abundant in places.|acid intrusive rock|||Y|S-type|17-JAN-23
Bundeena Group|39274|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|24237||||||Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|||||N||17-JAN-23
Bundella Syenite|29518|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Ordovician||||intrusion|Upper Ordovician|||||||NSW|No|43640||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Intrudes the Weemalla Formation.|Mildly altered pyroxene monzodiorite.|intermediate intrusive rock|||Y||17-JAN-23
Bundong Granite|69877|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Glenbog Suite|7361|Pragian||||intrusion|Pragian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Part of the Glenbog Supersuite.|Pink, massive, medium-coarse grained, inequigranular biotite granite; minor microgranite dykes. Generally has a high radioelement response and high magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Bundook beds|34392|Bundook Beds|24790|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Famennian||||deposition|Frasnian||||||2740||No|44244||||||May now include the "Bowman beds"?|Volcanic and limestone breccia, limestone lenses, mudstone, lava flows, sandstone alternating with laminated siltstone and claystone, lithic arenite, chert, tuff, rare conglomerate or breccia|acid volcanic rock|carbonate sedimentary rock||N||17-JAN-23
Bundundah Granite|2992|Bundundah Porphyritic Microgranite""|2993|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||Oberon Supersuite|31533|Carboniferous||||magmatic crystallisation|Carboniferous|324.4|3.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||Variation on "Bundundah Porphyritic Microgranite". Full name not shown in article 42726. This form of the name now preferred by GSNSW and to be described in TRIGG S. J. and CAMPBELL L. M. 2011. Moss Vale 1:100 000 Geological Sheet 8928, Explanatory Notes. Geological Survey of New South Wales. In preparation [2011]. Name published in GA Record 2010/31 (RefID 66300). Same age as Touga Granite.|Porphyritic pink granite.|acid intrusive rock|||Y||17-JAN-23
Bundycoola Formation|23439|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mulga Downs Group|26063|||Famennian||||deposition|Emsian||||||600|NSW|No|37798|41821|R.A.Glen|24-DEC-80||||Polymictic litharenite and polymictic conglomerate; gritty layers, interbedded with siltstone and friable silty arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Bunga beds|3000|Bunga Beds|2998|||Yes|Formation, beds|Informal|Variation of published name|Described|Boyd Volcanic Complex|27117|||Frasnian||||deposition|Givetian|||||40|200||No|42448||||||Fully described as Bunga Beds. May be similar age to Antarctic Aztec Siltstone based on having early xenacanth shark Antarctilamna in common (see 1993 ref under Bunga Beds)|Interbedded sandstone, shale and conglomerate with minor rhyolite and basalt.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Bungaba Coal Member|23440|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Glen Davis Formation|24610|||Late Permian||||deposition|Late Permian||||||||No|42657||Yoo E.K.|27-MAY-93|||Of the Illawarra Coal Measures.  Current name may be a seam rather than member?|Dull/minor bright coal; numerous carbonaceous and tuffaceous claystone layers.|organic rich sedimentary rock|||N||17-JAN-23
Bungambil Granite|79357|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Devonian||||intrusion|Devonian|413||isotopic|||||No|72083||Trigg, S. (GSNSW)|26-FEB-16|||Ardlethan 1:100k map sheet area 8229. Medium- to coarse-grained equigranular biotite granite, I-type. To be published = Probably in a quarterly note of the Geological survey of New South Wales later in 2016 or in 2017.|Medium- to coarse-grained equigranular biotite granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Bungawalbin Member|82373|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Orara Formation|82372|||Lower Cretaceous|||||Middle Jurassic||||||||No|70820||||||Used in GSNSW seamless geology dataset 2021.|Mudstone and carbonaceous mudstone, thinly interbedded with fine-grained sandstone. Increasing amounts of massive quartzose sandstone beds at base of member.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||20-AUG-23
Bungendore Formation|24203|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Weereewa Group|77796|||Quaternary||||deposition|Pliocene||||||54|NSW|Yes|42820|42820|R.Abell|08-OCT-84|||NLR Jan 91 but BD in J1202/03 P163. Publ. in BMR Bull 233.|mottled clay; gravelly clay with quartz and lithic clasts; clay with colour, carbonaceous or silty laminations.|regolith|||N||20-AUG-23
Bungil Formation|3008|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Blythesdale Group|2034|||Aptian|||biozone|weathering|Valanginian|||biozone|deposition||269|QLD|No|34613||||||Ref 65384 Chan (2009) gives age as probably Aptian. Ref 65119 (2009) gives age as: 135-116 Ma (Valanginian- Aptian), but also says fission track age: 108+/-6 Ma [metamorphism?]|Glauconitic, labile to quartzose, siltstone, mudstone. Subdominant coarse-grained quartzose sandstone in some areas. Minor thin coal seams.|fine grained siliciclastic rock||intracratonic|N||02-AUG-23
Bungonia Group|34589|Bungonia Limestone|3018|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Lochkovian||||deposition|Wenlock||||||1235||No|22842||||||Status upgraded from Bungonia Limestone.|Interbedded fossiliferous shale, sandstone, limestone, siltstone and shallow marine mass flow deposits|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Bungulla Monzogranite|38279|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bungulla Suite|67899|Middle Triassic|244||isotopic, Rb/Sr|intrusion|Lopingian|252.5|1.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|23811||||||Unit confirmed by Champion, Blevin and Bultitude, pers.comm., 2007. Within the Stanthorpe Supersuite. See also Bungulla Granite. In Geology of Queensland 2013, p460.|Pale pinkish grey to grey, fine to medium-grained, coarsely porphyritic hornblende-titanite granodiorite to monzogranite; pale pink to white K-feldspar phenocrysts to 10 cm; locally abundant enclaves|acid intrusive rock||continental margin arc|Y|I-type|22-AUG-23
Bungulla Suite|67899|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bungulla Supersuite|82122||||||||||||||No|61783||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Previously in Moonbi Supersuite, then classed in the Stanthorpe Supersuite. Upgraded to Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408. but used in GSNSW seamless geology dataset 2021, 2023.|Monzogranite.|acid intrusive rock|||Y||22-AUG-23
Bungulla Supersuite|82122|Bungulla Suite|67899|||Yes|Supergroup|Informal|Variation of published name|Mentioned||||||||||||||||||No|71628||||||Used in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|||||Y||21-SEP-23
Bungunnia Limestone|3026|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Wunghnu Group|20670|||Chibanian||||deposition|Lower Pleistocene||||||3|SA|No|71248|42966||||||Limestone and dolomite, thin-bedded, micritic. Lacustrine.|carbonate sedimentary rock|||N||17-JAN-23
Bunker Creek Formation|73423|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Teltawongee Group|37348|||Cambrian|515.5|2.7|inferred, intrusive relationship|deposition|Cambrian|517|10||||10000||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet.|Silty and muddy massive sandstone;fine to medium grained turbiditic quartzofeldspathic arenites. Erosional basal contact with some rip-up clasts, sand grains to 1mm, detrital muscovite to 3mm; climbing ripples, laminations and rare muddy tops.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Bunnyong Sandstone Member|3037|Bunnyong Sandstone|24792|||Yes|Member, phase|Informal|Variation of published name|Mentioned|Long Swamp Formation|24613|||Permian||||deposition|Permian||||||||No|39232||||||In GS NSW 2013 stratigraphy list.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bunyan Formation|3053|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Middle Miocene||||deposition|Middle Miocene||||||210||No|40664||||||Monaro region.|Includes diatomite, clay, sandy clay, sands, gravels, coal (lignite)|siliciclastic sedimentary rock|||N||17-JAN-23
Bunyip Sand|3054|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Recent||||deposition|Quaternary|||||||SA|No|34180|30754|||||Definition information also in 94/27899.|||||N||17-JAN-23
Burbie Formation|81946|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Green, white weathering, porphyritic to equigranular fine-grained basaltic trachyandesite; minor trachyandesite.|intermediate volcanic rock|||N||17-JAN-23
Burcher Greywacke|3060|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Early Silurian||||deposition|Early Silurian|||inferred, underlying unit|||4000|NSW|Yes|35503|35503|Kemezys K.J.|15-JAN-76|Hawke, J.|12-OCT-76|Forbes 1:250 000 sheet area.|Fine to medium-grained greywacke, silty lenses|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock|continental rift|N||17-JAN-23
Burdekins Gap Basalt Member|23444|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Alum Mountain Volcanics|342|||Cisuralian|275.1|3.4|inferred, overlying unit|eruption|Pennsylvanian|||inferred|||350|NSW|No|36057|36057|Hunt, J., Crane, D.|23-JUL-76||||Dominantly massive crystalline and amygdaloidal basalt with thin interbeds of fine conglomerate, pebbly lithic sandstone, and minor coal seams, sometimes rich in thin clay-rich seat earth.|basic volcanic rock|sedimentary rock||N||17-JAN-23
Burgoon Formation|3066|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Goonigal Group|24297|||Pridoli||||deposition|Pridoli||||||630||No|43476|23170|||||Includes the Yarran Cherts. Intruded by Gumble Granite.|Pyritic, lithic and feldspathic tuffs interbedded with cherts.|siliciclastic sedimentary rock|||N||17-JAN-23
Burilda Granite|21388|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Lewis P.C.|07-APR-94|||Bega 1:250 000 sheet area|Granite|acid intrusive rock|||Y||17-JAN-23
Burly Jacky Sandstone Member|3078|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Glendalough Formation|7375|||Wenlock||||deposition|Llandovery||||||||No|35258|||||||Coarse, calcareous, quartz feldspathic sandstone facies|siliciclastic sedimentary rock|||N||17-JAN-23
Burnamwood Formation|25821|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian||||||214|NSW|No|29942|40805||||||Sandstone, siltstone and five named coal seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Burnewang Ignimbrite Member|70469|Burnewang|41449|||Yes|Member, phase|Formal|Resvd name published|Defined|Merlewood Formation|26028|||Mississippian||||eruption|Mississippian|343|||||10||No|62095||||||Previously mapped as Wheelihans Gap Ignimbrite Member rocks. Age: ~343Ma. In the Werrie block/Tamworth Belt.|Varies from single dense, red unwelded ignimbrite to thin interbeds of ignimbrite, siltstone and volcanolithic sandstone; some reworking shown.|acid volcanic rock||forearc|N||17-JAN-23
Burnt Hill Granite|3097|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Burnt Hill Suite|31556|Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Stated to be of the Whick Whack Suite on the GOULBURN 1:250K provisional (2008) map sheet.|Pinkish-grey, fine- to medium-grained, generally massive, equigranular, biotite granite.|acid intrusive rock|||Y|A-type|17-JAN-23
Burnt Hill Suite|31556|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Burnt Yards Basalt Member|77076|Burnt Yards Basalt|73706|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Forest Reefs Volcanics|6819|||Llandovery||||eruption|Llandovery||||||||No|70297||Blevin, P. (GSNSW)|10-JUL-12||||Basaltic andesite to basaltic trachyandesite; being high-K calc-alkaline suite|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Burra Group|3106|||||Yes|Group, Suite|Formal|Variation of published name|Defined|Warrina Supergroup|24564|||Cryogenian|700|||deposition|Tonian|777|7|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||10400|SA|No|44690|37854|||||Established by Thomson et al (1964). Poor age constraints. Also in Stansbury Basin. Not related to Burra Burra Creek Formation. Age: <777+/-7Ma from basal Boucaut Volcanics. Adelaide Geosyncline.|Siltstone, laminated; shale; sandstone, heavy mineral lamination, quartzose to feldspathic, cross bedding; minor dolomite, blue-grey to pale pink, lenticular.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||14-JUN-23
Burra-Moko Head Sandstone|28305|Burra-Moko Head Sandstone Member|3114|||Yes|Formation, beds|Formal|Variation of published name|Described|Grose Subgroup|26595|||Triassic||||deposition|Lower Triassic||||||112||No|29749||||||Supersedes Burra Moko Head Member, Burra Moko Head Sandstone and Burra Moko Head Sandstone Member.|Quartzose to quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||16-AUG-23
Burraga Granite|3117|Thompsons Creek Granite|18070|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Burraga Suite|31555|Carboniferous||||intrusion|Carboniferous|320||isotopic, Rb/Sr|||||No|42726||||||Use of this name should be discouraged. See Thompsons Creek Granite, which superseded Burraga Granodiorite in 1973, because Burraga Group is used in the same area.|Coarse-grained, leucocratic biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Burraga Suite|31555|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Burragorang Claystone Member|3124|Burragorang Claystone|3125|||Yes|Member, phase|Formal|Unknown or process pending|Described|Farmers Creek Formation|24609|||Permian||||deposition|Permian||||||16||No|39232||||||See also Burragorang Claystone.|Claystone|siliciclastic sedimentary rock|||N||17-JAN-23
Burragundy Formation|26295|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian||||deposition|Silurian||||||1500|NSW|Yes|40328|40328|G.Bradley|13-AUG-73|NSW SNSC||Upper part now included in Kabadah Formation (Dubbo Explan Notes, 1999).|||||N||17-JAN-23
Burralow Formation|25822|||||Yes|Formation, beds|Formal|Other new published name|Defined|Gosford Subgroup|7628|||Middle Triassic|240|||deposition|Lower Triassic||||||6|NSW|No|43317|34205|||||Within the Narrabeen Group. Appears to have been upgraded to Burralow Subgroup of the Narrabeen Group? - but requires confirmation. Continued usage of Formation suggests change of rank not widely accepted, or was a misspelling. June 2012 GSNSW state list places this unit in Gosford Subgroup, Narrabeen Group.|Variable lithology containing mainly quartz sandstones, shales and red-brown claystones.|siliciclastic sedimentary rock|||N||19-JUL-23
Burranah Formation|24797|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Silurian|435.4|4.6|isotopic, U/Pb|deposition|Upper Ordovician|450|||||2500||No|43476|23170|||||Rockley-Gulgong Volcanic Belt.|Latite, basalt and andesite lavas and intrusive rocks; volcaniclastic sandstone, mudstone, conglomerate, breccia, allochthonous limestone.|intermediate volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Burrandana Granite|3126|||||Yes|Formation, beds|Informal|Other new published name|Described|||Kyeamba Suite|31597|Lochkovian||||magmatic crystallisation|Pridoli|417.7|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||Previously thought  [By who? Not Chappell et al.1991] to be part of the c.430 Ma Koetong Supersuite; only possible if the latter were emplaced over 10-15 m.y.|Medium- to coarse-grained, porphyritic, quartz-rich biotite granodiorite. Enclaves of quartzite and other metasedimentary rocks are locally prominent. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Burrandong Creek Member|25710|Burrandong Creek Conglomerate Member|27263|||Yes|Member, phase|Formal|Variation of published name|Redefined|Bocobidgle Conglomerate|23398|||Early Silurian||||deposition|Bolindian|||||||NSW|No|42489|46522||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Burrawan serpentinite|75833|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name for serpentinites lying on the Sapling Creek Fault between the Port Macquarie Block and the Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Burrawan Serpentinite in figs.|||||N||17-JAN-23
Burrawinda Suite|69893|Wheeo Suite|31657|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Ludlow||||intrusion|Wenlock|427|||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006). Age from constituent units: Mulgowrie Granodiorite (427.8 +/-2.7 Ma) and Winduella Tonalite (427.9 +/-3.0 Ma). Previously included in Keverstone Supersuite, but not part of this Supersuite in GSNSW Seamless geology 2021.|Granite, granodiorite and tonalite.|acid intrusive rock|||Y|S-type|17-JAN-23
Burrawong Limestone|3130|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cudal Group|4974|||Ludlow||||deposition|Ludlow||||||730||No|43476|23170|||||Wellington &/or Euchareena 1:100 000 sheet area. See misspelt Burrowang Limestone.|Pale to mid-grey coloured forming massive boulders; limestone consists of calcareous detritus made up of corals, bryozoa, crinoids, molluscs, brachiopods and algae.|carbonate sedimentary rock|||N||17-JAN-23
Burridgee Diorite|42497|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Devonian||||intrusion|Devonian||||||||No|64238||Thomas, O.|18-JAN-05|||On TARALGA 1:100k sheet.|Dark grey to green-grey, massive equigranular to sparsely porphyritic quartz diorite; minor fine-grained quartz dolerite and coarse-grained equigranular gabbro.|intermediate intrusive rock|||Y||10-SEP-23
Burrill Formation|3138|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cookamidgera Subgroup|4495|||Upper Devonian||||deposition|Upper Devonian||||||305|NSW|No|43507|43507|||||Parent:Cookamidgera Subgroup|Reddish purple mudstone, cross-bedded off-white fine-grained quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Burrinjuck Granite|3142|Burrinjuck granite|3143|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Boggy Plain Supersuite|2092|Emsian||||intrusion|Pragian||||||||No|33995||||||Previously included in the Young Granodiorite, but reinstated on the BATHURST 1:250 000 (1998). Previously only unit in the Burrinjuck Suite. Part of Boggy Plain Supersuite.|Comprises pink, medium- to fine-grained, massive, equigranular, leucocratic biotite granite; Intruded by aplite.|acid intrusive rock|||Y||10-SEP-23
Burrowa Hills Granite|70239|Burrowa Hills Granodiorite|38072|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Gooramma Suite|70027|Devonian||||intrusion|Devonian||||||||No|64238||GSNSW|31-MAR-06|||Originally reserved as Burrowa Hills Granodiorite, name altered after more detailed petrography was undertaken.|Pinkish-grey, medium-grained, massive, equigranular biotite-augite?-ferroan enstatite? granite and biotite-hornblende-quartz -augite-ferroan enstatite monzonite.|acid intrusive rock|||Y||17-JAN-23
Burrundulla Shale|3159|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Middle Devonian||||deposition|Lower Devonian||||||||No|43476||||||Last used 1972. Probably obsolete.|Shale|siliciclastic sedimentary rock|||N||17-JAN-23
Burthong Formation|3177|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mouramba Group|25736|||Lochkovian||||deposition|Pridoli||||||4000|NSW|No|41394|41528||||||Ripple cross-laminated and parallel-laminated, moderate to well sorted, fine to very fine-grained quartz-lithic sandstone with lesser laminated siltstone; some massive to bedded granule to pebble polymictic conglomerate and coarse pebbly lithic sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Burtons Tank Granite|79941|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Paleozoic|||||Paleozoic||||||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Used in GSNSW seamless geology 2023.|Felsic intrusion surrounded by broad magnetic high (hornfels?)|acid intrusive rock|||Y||04-SEP-23
Bushmans Volcanics|39004|Bushmans Andesite|3193|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Early Silurian||||eruption|Early Silurian||||||||No|24417||||||Reserved as Bushman Volcanics (Raymond, 1998), but probably a variation on Bushmans Andesite. Variously separated from and included in other units over time. Distinguished from Goonumbla Volcanics, then combined with Nash Hill Volcanics in 2000, but Bushman Volcanics and Bushmans Volcanics used in 2007 and 2009.|||||N||17-JAN-23
Bushranger Volcanics|29507|Bushranger Ignimbrite|21401|||Yes|Formation, beds|Formal|Resvd name published|Defined|Crudine Group|4970|||Pragian||||eruption|Lochkovian||||||500||No|22679|22679|Henderson G.A.M.|28-FEB-92|||Blayney area|Coarse-grained volcanic rocks including porphyritic andesite, less common basalt; minor rhyodacitic rocks at the S end of the belt; thin interbeds of siltstone and shale.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Butchers Block Tonalite|38462|Butchers Block Granite|37640|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Koetong Supersuite|9704|Lower Devonian|||||Lower Devonian||||||||No|24133||||||Incorrectly shown as Tom Groggin Granite on the previous 1:250 000 map (VandenBerg 1997). Geol Surv Victoria name. Geological Province: Omeo Province.  Age from Tallangatta 1:250,000 Map Sheet (HG, 25/11/04). Appears to be called Grass Flat Adamellite (now Grass Flat Monzogranite) in NSW (Kosciusko National Park 1:250,000 map and Lachlan Fold Belt granites map). Grass Flat name has precedence.|Tonalite; magnetic; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Butheroo Shale Member|3199|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Purlawaugh Formation|15676|||Lower Jurassic||||deposition|Lower Jurassic|||||||NSW|No|30610|30610|||||Geological Province from GSNSW 2013 State list.|Shale|siliciclastic sedimentary rock|||N||17-JAN-23
Butmaroo Granite|28421|||||Yes|Formation, beds|Informal|Other new published name|Fully described|||Thurralilly Suite|75928|Silurian||||intrusion|Silurian||||||||No|42726|||||||Hornblende-biotite granite and granodiorite (incorporates Tallaganda Granodiorite)|acid intrusive rock|||Y||17-JAN-23
Butmaroo Suite|31655|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Buttai Coal Member, Lower|82548|||||Yes|Member, phase|Invalid|Other new published name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. May have previously been included in Buttai Coal.|Dull and bright-banded coal; coaly and/or carbonaceous shale, light brown claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Buttai Coal Member, Upper|82549|||||Yes|Member, phase|Invalid|Other new published name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.May have previously been included in Buttai Coal.|Dull and bright-banded coal; carbonaceous shale, coaly shale; thin beds, light grey, very fine-grained sandstone.|organic rich sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Byabbara beds|3214|Byabbara Beds|26444|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Carboniferous||||deposition|Carboniferous||||||||No|41348|||||||Lithic sandstone, siltstone, mudstone, tuff, limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Byawatha Conglomerate Member|35692|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Rankin Formation|15840|||Upper Devonian||||deposition|Upper Devonian||||||170||No|61964||Meakin S.|30-JAN-01|||For use on CARGELLIGO 1:250 000 sheet area. Rocks were formerly undiff'erentiated, together with those of the Essex Member. Also referred to as the abbreviated Byawatha Member. Faulted against Square Head Formation.|Polymictic, medium to thick bedded pebble-granule conglomerate to pebbly sandstone, medium to large scale trough cross beds (clasts: dominantly quartzite, minor black chert).|siliciclastic sedimentary rock|||N||11-SEP-23
Bygoo Hills Formation|79873|Ardlethan Sandstone|28332|||Yes|Formation, beds|Reserved|Reserved|Reserved|Cocoparra Group|4293|||Upper Devonian|||||Upper Devonian|||||||NSW|No|||Trigg, S. (GSNSW)|20-JUN-17|||Ardlethan 1:100k sheet 8229. This is part of the Cocoparra Group and largely corresponds to  the 'Ardlethan Sandstone' of Conolly from the 1960s although the lower part of the Ardlethan Sandstone as described by Conolly is a separate unit, now included in the Hazeldene Sandstone. See informal Bygoo Hills sandstone.|||||N||17-JAN-23
Bygoo Hills sandstone|81250|Bygoo Hills Formation|79873|||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described||||||||||||||||||No|72083||||||Trigg (2015, 2016). Informal name. Crops out E of Ardlethan. Has similar lithology to Narrandera Sandstone but lacks a basal conglomerate.|Mostly quartz-rich sandstone with mud-galls abundant locally.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Bymue Member|3223|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Woorinen Formation|20618|||Holocene||||deposition|Chibanian|||||||NSW|No|35272|42966||||||||||N||17-JAN-23
Byng Volcanics|29500|Byng Rhyolite|32654|||Yes|Formation, beds|Formal|Resvd name published|Defined|Cabonne Group|21409|||Sandbian||||eruption|Sandbian|455|||||2000|NSW|No|22679|23214|Scott M.|21-JUL-95|||Bathurst 1:250 000 sheet. Molong-Wellington Volcanic Belt.|Basalt, volcaniclastic sandstone.|basic volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Bynguano Quartzite|3224|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mutawintji Group|72958|||Tremadocian||||deposition|Late Cambrian||||||600||No|43501||||||Replaced by Bynguano Formation for a few years, then Bynguano Quartzite reinstated.|Predominantly quartzite, with cross-bedded quartz sandstone; some pebbly sandstone or conglomerate near the base; red and green micaceous siltstones occur higher in the unit.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Byong Volcanics|3226|Byong volcanics|3227|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Derriwong Group|5403|||Lower Devonian||||eruption|Late Silurian||||||1000||No|29993||||||Correlates with Cowcumbala Rhyolite|Feldspar porphyry lava or shallow intrusion.|acid volcanic rock|||N||17-JAN-23
Byrnes Creek Formation|23449|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Ordovician||||deposition|Ordovician|||||||NSW|No|37986|37986|Hutton, A.C.|21-OCT-80||||||||N||17-JAN-23
Byrock Granite|3233|Westella Granite|81787|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Westella Suite|73375|Lower Devonian||||magmatic crystallisation|Lower Devonian|414.7|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|34449||||||Includes an un-named but separately-mapped sub-unit of 'altered granite; extensive silica replacement with sericite and iron oxides'.|I-type granite; grey to white, medium- to coarse-grained biotite granite with abundant biotite-rich enclaves; contains xenoliths of metamorphosed country-rock; foliated locally.|acid intrusive rock|||Y|I-type|17-JAN-23
Byrock Leucitite|24803|||||Yes|Formation, beds|Invalid|Other new published name|Briefly described|Byrock Leucitite Suite|83664|||Burdigalian|17|.3|isotopic, Ar/Ar, step heat||Burdigalian|17.9|.2|isotopic, Ar/Ar, step heat|||||No|34449||||||Of Byrock Leucitite Suite.  Earlier K-Ar dates provided age contraints between 16.8 - 12.2 Ma. These dates are considered unreliable in favour of modern Ar-Ar dating which precisely places the volcanism between 17.9 - 17.0 Ma. This name is invalid. Byrock Granite probably has priority.|Olivine-bearing leucitite lava flows with phlogopite phenocrysts up to 3 mm.|foid-bearing volcanic rock|||N||17-JAN-23
Byrock Leucitite Suite|83664|||||Yes|Group, Suite|Invalid|Other new published name|Briefly described|||||Burdigalian|17||isotopic, Ar/Ar, step heat||Burdigalian|17.9||isotopic, Ar/Ar, step heat|||||No|73581||||||This name is invalid. Byrock Granite has priority. Suggest changing unit name to Cosgrove Leucitite Suite, after the Cosgrove hotspot track thatt produced these rocks. Used in GSNSW seamless geology dataset 2021.|Olivine-bearing leucitite lava flows with phlogopite phenocrysts up to 3 mm. Olivine-bearing vesiculated leucitite lava flows, plugs and minor scoria and volcaniclastic rocks.|foid-bearing volcanic rock|||Y||05-FEB-23
Byron Range Group|3235|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Lower Devonian||||deposition|Lower Devonian||||||||No|37195|||||||Limestone, siltstone, quartzite, shale, sandstone, conglomerate|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
CSA Siltstone|3248|C.S.A. Siltstone|3242|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Amphitheatre Group|381|||Lochkovian||||deposition|Lochkovian|||||||NSW|No|29947|43774|||||Defined as C.S.A. Siltstone in 1987. Redefined as CSA Siltstone in 1994.|Thin bedded, graded, parallel-laminated carbonaceous siltstone + mudstone w  thin, fine-grained, ripple cross-laminated quartz sandstone beds. Rare med. bedded, massive to parallel-laminated, med.-grained lithic sandstone beds. Thin felsic tuff nr top.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||03-AUG-23
Cabanandra Granodiorite|3251|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Dalgety Supersuite|5145|Wenlock||||intrusion|Llandovery||||||||No|41850||VandenBerg, A.H.M.|08-FEB-89|||Dalgety Supersuite. GSV Code: G67. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite granodiorite: medium grained, quartz phyric; grey; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Cabonne Group|21409|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Bolindian||||eruption|Darriwilian|||inferred, underlying unit|||4500|NSW|No|43127|23170|Watkins J.J.|25-MAR-94|||To be used in Quarterly Notes article, & on Bathurst 1:250 000 sheet. Thickness: due to complexity of type section - 800m to 4000m.|Basalt, basaltic andesite, latite lava and intrusions; chert; volcaniclastic siltstone, sandstone; limestone, calcareous breccia.|intermediate volcanic rock|||N||17-JAN-23
Cabramurra Basalt|83202|Kiandra Basalt|9514|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Burdigalian|20.9|.4|isotopic, K/Ar||Chattian|23.2|.6|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Alkaline nepheline basalt and basanite dykes.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Caddigat dyke swarm|82711|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021|Quartz-biotite microgranite porphyry.|acid intrusive rock|||Y|S-type|06-SEP-23
Cadia Coach Shale|3277|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Ashburnia Group|29663|||Llandovery||||deposition|Llandovery||||||105||No|35258|23214|||||Invalid name as originally described (belonging to Cadia Group) in Bathurst 1:250 000 sheet area [CEBNov95] Originally included in the Panuara Formation (subsequently Panuara Group).|Feldspathic siltstone and arenite, limestone, conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cadia Far East monzonite|83285|Cadia Far East Monzonite|73745|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Llandovery|||||Llandovery|437|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|73154||||||Informal unit or sample description? Probably part of the Cadia Intrusive Complex.|||||Y||17-JAN-23
Cadia Hill Monzonite|29660|Cadia monzodiorite complex|24805|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Ordovician|439|6|isotopic, U/Pb|intrusion|Upper Ordovician||||||||No|43640||Wyborn D. for Lachlan NGMA project|29-AUG-95|||Bathurst 1:250 000 sheet area. See also other variations of Cadia, including Cadia Intrusive Complex.|Monzonite, monzodiorite, orthoclase porphyry|intermediate intrusive rock|||Y||17-OCT-23
Cadiangullong Porphyry|29519|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||eruption|Upper Ordovician|||||||NSW|No|43642|23214|Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area Intrudes Weemalla Formation.|Dark, coarse grained feldspar-clinopyroxene porphyry with large phenocrysts of strongly sericitised and carbonatised feldspars and carbonatised clinopyroxene.|igneous rock|||U||17-JAN-23
Cadna-owie Formation|3284|Transition Beds""|18534|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Aptian|||inferred|deposition|Berriasian|||inferred, geological correlation||10|100|SA|No|44658|69946|||||Defined Wopfner, Freytag and Heath 1970. See also Marree Formation. Formerly part of Rolling Downs Group, NSW; Blythsdale Group, Qld & Neales River Group, SA. Age - Neocomian-Aptian  (see Strzelecki 1:250k explan notes (1995) for details). Currently (2013) ungrouped. The name Rolling Downs Group is applied to the succession from top Cadna-owie Formation to top Winton Formation. See 'Geology and Mineral Resources of the Northern Territory (2013), p41:6. Main aquifer of the Great Artesian Basin.|Transitional, non-marine to marine pale grey sandstone, siltstone, calcareous sandstone and pebbly sandstone, some feldspathic;intraformational conglomerate; thin coaly layers, dark mudstone, layers of kaolin-like material, possibly altered tuff.|siliciclastic sedimentary rock||intracratonic|N||17-JAN-23
Cadumble Formation|3296|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Middle Devonian||||deposition|Lower Devonian||||||||No|43476|||||||||||N||17-JAN-23
Cairncross Monzogranite|76945|Cairncross Adamellite|3302|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glen Esk Supersuite|82460|Upper Triassic|||inferred|intrusion|Upper Triassic|||inferred|||||No|71628||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Quartz-K-feldspar porphyry, micromonzogranite,  monzogranite porphyry and leucogranite porphyry.|acid intrusive rock|||Y|I-type|16-AUG-23
Caladenia Limestone Member|3304|Caladenia limestone member|3307|||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Towanga Sandstone|27245|||||||deposition|||||||||No|23710|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Calamia Member|24205|||||Yes|Member, phase|Formal|Variation of published name|Redefined|Gatton Sandstone|7050|||Lower Jurassic||||deposition|Upper Triassic|||||42|137|NSW|Yes|41631|42248|L.Etheridge|14-MAR-85|NSW SNSC|27-FEB-91|Formerly of lower Marburg Formation (definition card 1985). Redefined A.T.Wells, L.Etheridge,1988, and new definition card approved 1991. Grafton (SH56-6) and Maclean (SH56-7) 1:250 000 sheet areas. Contradictory statements re thickness in definition: 92m and 137m, both in Pillar Valley DDH2, and range from 42-120m!?|Siltstone and mudrocks, fine to medium grained sandstone.|siliciclastic sedimentary rock||oceanic backarc|N||02-JUN-23
Calarie Sandstone|3310|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Derriwong Group|5403|||Pridoli||||deposition|Ludlow||||||300||No|33118|||||||Sandstone|siliciclastic sedimentary rock|||N||06-SEP-23
Calderwood Latite Member|23454|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|38690||P.Carr|26-MAR-80|||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Coarsely porphyritic latite.|intermediate volcanic rock|||N||17-JAN-23
Caley Formation|28198|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Narrabeen Group|13874|||Lower Triassic||||deposition|Late Permian||||||46.6|NSW|No|43317|34205|||||Originally only in Grose River area.|Claystone, shale, quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||21-AUG-23
Calivil Formation|3322|Calivil Sand|3326|||Yes|Formation, beds|Formal|Other new published name|Defined|Wunghnu Group|20670|||Pliocene|||inferred, overlying unit|deposition|Eocene|||inferred, biostratigraphic correlation|||65|VIC|No|31951|42966|||||Originally Calivil Formation (Macumber 1973), modified to Calivil Sand (Lawrence 1975); reverted to Calivil Formation (Tickell and Humphreys 1980) see 61185. Age variably interpreted as anywhere from Eocene to Pliocene, depending on location of study. Formerly included in Wunghnu Group, now advised this is a stand-alone unit  (per email, Fons Vandenberg 10/10/08) - "the reason being that most of its distribution is not associated with anything" and it simply  "records the sea-level high during the deposition of the Murray Group". Included in Loddon River Group in 2006 - but not used by GSV. Also see informal Calivil-Renmark Formation. Distribution modified in 2009.|River valley deposits; interbedded clay, silty clay, silt and subangular to subrounded fine to coarse-grained quartz sand, reef quartz and metasediment gravel, minor ligneous clay; silicified and ferruginised duricrust common.|regolith|||N||17-JAN-23
Callaghans Creek Quartz Monzodiorite|82375|Callaghan Creek Tonalite|77040|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moonbi Supersuite|36465|Middle Triassic|244.8||isotopic, Rb/Sr||Lower Triassic|265||isotopic, Sm/Nd|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine-grained, microporphyritic, biotite-hornblende-pyroxene quartz monzodiorite.|intermediate intrusive rock|||Y|I-type|21-AUG-23
Calleen Granodiorite|41168|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|50385||||||Reserved as Calleen Granite (Duggan and Lyons, 1998)|Gneissic, coarse-grained biotite granite|acid intrusive rock|||Y||17-JAN-23
Callemondah Granodiorite|3345|Callemondah Granite|3344|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Clear Range Suite|31567|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|12185|36413||||||Xenolith-rich granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Caloma Sandstone|3359|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nangar Subgroup|13778|||Upper Devonian||||deposition|Upper Devonian||||||229|NSW|No|43510|43507|||||Parent:Nangar Subgroup|Pinkish to white, thickly-bedded orthoquartzite; rarely reddish, coarse-grained with pebble bands.|siliciclastic sedimentary rock|||N||17-JAN-23
Caloola Dacite|81800|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||Silurian|||inferred, intrusive relationship|intrusion||||No|||Eastlake, M. (GSNSW)|06-JAN-20|||Tarcutta 1:100 000 map sheet area, 8427, Wagga Wagga 1:250k, SI55-15.  A subnorth-south trending dyke, up to 70 m wide, that cuts the Belmore Granite. It is a greyish-green seriate-porphyritic dacite that contains approximately 20% euhedral to subhedral phenocrysts of plagioclase and hornblende set in a very fine-grained aphanitic to weakly spherulitic quartzo-feldspathic groundmass.The unit is expected to be incorporated into the Geological Survey of New South Wales Stratigraphic Unit Tables in 2020.|It is a greyish-green seriate-porphyritic dacite that contains approximately 20% euhedral to subhedral phenocrysts of plagioclase and hornblende set in a very fine-grained aphanitic to weakly spherulitic quartzo-feldspathic groundmass.|acid volcanic rock|||Y||17-JAN-23
Calytria Quartzite Member|23458|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Crowl Creek Formation|23523|||Mississippian||||deposition|Givetian||||||52|NSW|No|40913|41126|E.Scheibner|19-DEC-80||||Coarse- to medium-grained quartz arenite and quartzite, scarce scattered quartz pebbles.|siliciclastic sedimentary rock|||N||08-SEP-23
Cambalong Metamorphic Complex|33680|Cambalong Complex|24207|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Ordovician|||||Late Cambrian||||||||No|22815||||||Defined as Cambalong Complex. Metamorphosed Adaminaby Group rocks. Occurs near Bombala. Considered to be continuous with the Kuark Metamorphic Complex.  See also Cambalong metamorphic complex.|Metasediments; biotite schist, metasandstone, chert, pegmatite and aplite dykes, biotite-andalusite schist|metasedimentary siliciclastic rock|||N||17-JAN-23
Cambewarra Latite Member|3370|Cambewarra Latite|3371|||Yes|Member, phase|Formal|Unknown or process pending|Described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|29900||||||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Amygdaloidal, red-yellow, finely porphyritic, with labradorite phenocrysts, pillowed latite flow.|intermediate volcanic rock|||N||01-SEP-23
Camboon Volcanics|3378|Camboon Andesite|3375|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Cisuralian|277.9|4|isotopic, K/Ar|eruption|Pennsylvanian|309.1|3.3|isotopic, U/Pb-Pb/Pb ion probe|||3000||No|43995|65388|||||Hosts Cracow gold deposit. Surface/Subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Rockhampton, Duaringa, Mundrabilla 250k sheet areas.|Basaltic to andesitic lava and equivalent volcaniclastic rocks; subordinate felsic ignimbrite, other felsic volcaniclastic rocks and minor lava; commonly deformed.|intermediate volcanic rock|acid volcanic rock|extensional continental backarc|N||17-JAN-23
Cambrai Granite|23460|||||Yes|Formation, beds|Formal|Resvd name published|Described|Narraburra Complex|69150|Barmedman Suite|31550|Famennian|365|4|isotopic, Rb/Sr|intrusion|Frasnian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area.  Age and parentage deduced form Wormald et al, 2004, AJES, 51, p372.|Leucocratic biotite granite|acid intrusive rock|||Y||17-JAN-23
Cambrian rocks 79421|79421|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Cambrian|||||Cambrian||||||||No|||||||Cambrian, undivided.|||||N||17-JAN-23
Cambrian sedimentary rocks 76535|76535|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Cambrian|490|||deposition|Early Cambrian|545|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset.|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Cambrian sedimentary rocks 76536|76536|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Cambrian|490|||deposition|Early Cambrian|545|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset, and 'Pre-Cz geology, NSW & Vic'.|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Camden Haven Group|28197|Camden Haven Series|3383|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Triassic||||deposition|Lower Triassic||||||260|NSW|No|43384|||||||Quartz and quartz-lithic sandstone and carbonaceous and micaceous siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Camden Head Claystone|3385|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Camden Haven Group|28197|||Lower Triassic|||biozone|deposition|Lower Triassic|||biozone|||82|NSW|Yes|32719|66090|Pratt G.W., Herbert C.|11-DEC-72|NSW SNSC|01-SEP-10|Was replaced by Camden Head Claystone Member in 1998, but original name used in 2004. Redefined July 2010. See published definition for figures and locations referred to in Unit Definition data.|Sequence of red-brown claystone and siltstone with lesser amounts of  grey, fossil-bearing siltstone, sandstone and conglomerate; usually has a thin basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Camelford Limestone|3390|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Mumbil Group|13411|||Lochkovian||||deposition|Pridoli||||||610||No|42033|23170||||||Massive to poorly bedded limestone. limestone conglomerate.|carbonate sedimentary rock|||N||17-JAN-23
Camels Hump Quartzite|3392|||||Yes|Formation, beds|Formal|Variation of published name|Described|Farnell Group|6531|||Neoproterozoic||||deposition|Neoproterozoic||||||||No|43501||||||Part of Torrowangee Group in 1968, 1970.|Massive to finely-laminated, medium- to fine-grained quartzite, well-sorted, silicified; sporadic finely-laminated zones.|siliciclastic sedimentary rock|||N||17-JAN-23
Camp Hill Sandstone Member|24208|Camp Hill Sandstone|3407|||Yes|Member, phase|Formal|Variation of published name|Redefined|Canberra Formation|3447|||Wenlock|||inferred, biostratigraphic correlation|deposition|Wenlock||||||100|ACT|Yes|36633|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|Defined in BMR Bulletin 233. RefID 22857  increases to c.100m the definition thickness of 60m.|Well-bedded arenite and siltstone; thin shale partings; thin beds of coarse-grained quartz arenite at the base.|siliciclastic sedimentary rock|||N||17-JAN-23
Camp Vale Coal Member|77590|||||Yes|Member, phase|Reserved|Reserved|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Dull coal with subordinate bright bands, minor beds of carbonaceous mudstone and shale, sideritic band|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Campbells Group|3427|Campbells Beds|3423|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Lochkovian|||inferred, overlying unit|deposition|Wenlock||||||4750|NSW|No|43515||||||Reinstated to group status from formation status. BURRAGA. See also Campbell's Group, Campbells Formation.  To be used on the new GOULBURN 1:250 000 sheet (2006) also. Maximum age constrained by fossils in the Kildrummie Formation (Goulburn Explan Notes 2012)|Siltstone, phyllite, black siltstone, quartzose and minor volcaniclastic sandstone, quartzite, quartz-muscovite schist, felsic tuff.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||05-SEP-23
Campbells Group undifferentiated sediments|42011|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Campbells Group|3427|||Lochkovian||||deposition|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Siltstone, phyllite, slate, quartzose and felsic volcaniclastic sandstone, carbonaceous and pyritic siltstone, limestone; minor felsic lava|siliciclastic sedimentary rock|||N||17-JAN-23
Campbells Hill Monzogranite Phase|82376|Campbells Hill Monzogranite|41053|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Walcha Road Monzogranite|41073|Lower Triassic|||inferred||Late Permian|||inferred|||||No|71628|||||||Light grey, medium-grained, texturally heterogeneous, weakly porphyritic, felsic biotite plagioclase-rich monzogranite to granodiorite, characterised by sparse K-feldspar megacrysts and rare hornblende.|acid intrusive rock|||Y|I-type|21-AUG-23
Camperdown Complex|3429|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||Hillgrove Supersuite|67847|Cisuralian||||intrusion|Cisuralian||||||||No|31806|||||||Pyroxene gabbro, pyroxene diorite, hornblende diorite, tonalite, granodiorite.|basic intrusive rock|||N||17-JAN-23
Campfire Monzogranite|67904|Campfire Adamellite|3430|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Hillgrove Supersuite|67847|Stephanian||||intrusion|Namurian||||||||No|||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Published in Surface Geology of Australia, 1:1,000,000 scale - New South Wales.|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y||17-JAN-23
Campground Granodiorite Phase|82379|Campground Granodiorite|82378|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Sheep Station Creek Complex|28997|Cisuralian|||||Cisuralian||||||||No|||||||Lith desc from GSNSW seamless geology 2021, 2023.|Medium- to fine-grained amphibole-biotite granodiorite.|acid intrusive rock|||Y|I-type|01-SEP-23
Cana Creek Tuff Member|23463|||||Yes|Member, phase|Formal|Variation of published name|Redefined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian|319|||||85||No|41800|62095|McPhie, J.|07-JUN-82|||Redefined by J. Roberts et al (AJES 53[2] 2006). How does Cana Creek Ignimbrite Member relate (used in 1991)?|Rhyolitic ignimbrite.|acid volcanic rock||forearc|N||02-JUN-23
Canangle Subgroup|3442|Canangle Sub-Group|3440|||Yes|Subgroup|Formal|Variation of published name|Fully described|Catombal Group|3797|||Famennian||||deposition|Upper Devonian||||||||No|43507||||||Bathurst sheet area.|Conglomerate, sediments.|siliciclastic sedimentary rock|||N||17-JAN-23
Canberra Formation|3447|Canberra Group|3450|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Wenlock|432.3|3.1|inferred, overlying unit|deposition|Wenlock|||inferred|deposition||1000|ACT|Yes|36633|42820|Abell, R.S. (after Henderson, G.A.M., after Opik 1958)|29-OCT-90|Brakel, A.|26-OCT-90|BMR Bulletin 233. Draft definition card by Henderson 1978, approved definition by Abell 1990. Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group [2012]. Minimum age from Laidlaw Volcanics (GS NSW seamless geology 2021).|Mudstone, siltstone, minor sandstone, limestone, hornfels, dacitic ignimbrite volcaniclastic sediments, minor agglomerate and ashstone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Candelo Suite|30477|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Consists of 2 members. See also misspelt Candello Suite.|Tonalite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Candelo Supersuite|3452|||||Yes|Supergroup|Formal|Variation of published name|Defined|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42827|||||||Granitic suites|acid intrusive rock|||Y||17-JAN-23
Candelo Tonalite|21429|Candelo Granite|24814|||Yes|Formation, beds|Formal|Resvd name published|Described|||Candelo Suite|30477|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Chappell B.W., Lewis P.|09-OCT-75|||Card.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Candoin Creek Tonalite|3456|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Moruya Suite|12371|Silurian||||intrusion|Silurian||||||||No|35248||||||See also the informal Candoin Creek Granite.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Cannabul Monzogranite|76976|Cannabul Adamellite|21432|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Cannela Formation|73521|Cannela beds|73610|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Ponto Group|35621|||Cambrian||||deposition|Cambrian|508.3|2.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|66922|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. See misspelt Canella beds for original SHRIMP dating report.|Quartzose turbiditic metasediments consisting of foliated metamorphosed mudstone (phyllite), muddy sandstone and quartzose sandstone intercalated with felsic and vitric tuff units that make up about 30% of the section.|metasedimentary siliciclastic rock|acid volcanic rock||N||17-JAN-23
Canobolas Volcanic Complex|3473|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Late Miocene|11|||eruption|Middle Miocene|13|||||||No|34547||||||Would suggest that this name revert to informal, it is almost used as a 'feature term' rather than a stratigraphic term.|Melilite in hawaiites.|basic volcanic rock|||N||17-JAN-23
Canobolas Volcanics|79862|Canobolas Volcanic Complex|3473|||Yes|Formation, beds|Formal|Variation of published name|Described||||||||||||||||||No|67821||||||Additional minor lithologies include quartz tholeiite and pyroclastic rocks.|Thin alkaline to transitional basaltic lavas, domes and plugs capped by trachyte, minor volcaniclastic units and interbedded non-volcanogenic sediments. Hawaiite and trachyte dominant rock types with minor mugearite, rhyolite, comendite, benmoreite.||||N||17-JAN-23
Canomodine Limestone|3476|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cabonne Group|21409|||Katian||||deposition|Katian||||||400|NSW|No|44086||||||Type Locality GR 666200 6290800 to GR 664900 628900. Molong-Wellington Volcanic Belt.|Thick-bedded to massive, wackestone, limey mudstone, minor shale and tuff.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Canonbar Igneous Complex|73680|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Ordovician|||||Ordovician||||||||No|63278||||||Inferred from geophysics. Lithology description from GSNSW seamless geology 2023.|Mixed intrusive phases.||||Y||28-SEP-23
Canowindra Volcanics|29527|Canowindra Porphyry|3479|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cudal Group|4974|||Wenlock|428||inferred|eruption|Wenlock|431.7|4.3|isotopic, U/Pb-Pb/Pb ion probe|||1000|NSW|No|43158|23170|||||Replaces Canowindra Porphyry in Bathurst 1:250 000 sheet area. See also RefID 67060 p505. Said to be of Wyangala Batholith. Equivalent to the Douro Group.|Garnetiferous quartz-feldspar-cordierite porphyritic lava, tuff, ashtone, ignimbrite.|acid volcanic rock|||N|S-type|17-JAN-23
Canowindra Volcanics, Nargong Volcanics|42000|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Cudal Group|4974|||Wenlock||||eruption|Wenlock||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Porphyritic garnetiferous quartz-feldspar-cordierite rhyolite to rhyodacite lava and ignimbrite, tuff, mass flow deposits; porphyritic andesite|acid volcanic rock|||N||17-JAN-23
Caoura Basalt|83660|Caoura basalt|3480|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Rupelian|28.7|.3|isotopic, K/Ar||Rupelian|31.2|1.3|isotopic, K/Ar|||||No|73581||||||Of Southern Highlands Volcanic Complex. (invalid name), according to GSNSW seamless geology 2021.|Low potassium (low-K) tholeiitic basalt.|basic volcanic rock|||N||05-FEB-23
Caoura basalt|3480|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|39356|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Cape Horn Coal Member|3498|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Permian||||deposition|Permian||||||||No|29900|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Cappanana Formation|3554|Cappanana beds|24819|||Yes|Formation, beds|Formal|Variation of published name|Defined|Bredbo Group|21321|||Ludlow||||deposition|Late Silurian||||||700|NSW|No|32820|42820|||||Also Defined in Bega-Mallacoota 1:250000 Geological Sheet SJ/55-4, SJ/55-8: Explanatory Notes (1994). Equivalent to, but not yet formally included in, the Douro Group.|Siltstone, shale, sandstone, limestone and minor volcanics, tuff, quartzite, minor limestone, calc-silicate hornfels.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Captain Rocks Formation|30309|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Middle Devonian||||deposition|Middle Devonian||||||||No|24008||Stratford J.|12-JUN-96|||Gamilaroi terrane in upper Barnard River catchment, centred on an area approx. 90 km north of Scone|||||N||17-JAN-23
Captains Flat Formation|3563|Captains Flat Beds|3562|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hoskinstown Group|8512|||Late Silurian|419.6|2.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Late Silurian|428.1|2.9|isotopic, U/Pb-Pb/Pb ion probe|||1200|NSW|Yes|12185|42820||||||Shale, siltstone, acid and basic volcanic flows and tuff; minor basalt and basaltic breccia, dacite and rhyodacite, lithic tuff and minor shale and conglomerate, volcanic chert.|fine grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Cara Formation|28435|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Tournaisian||||deposition|Late Silurian|||||||NSW|Yes|41328|41328|Aitchison J.C. et al.||NSW SNSC|27-FEB-91|In Central Block and Woodsreef Melange.|Low grade regionally metamorphosed, multiply deformed siliceous and tuffaceous thinly bedded argillite, chert, volcaniclastic wacke, pebble conglomerate and rare basalt.|siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Caragabal Granite|3566|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Caragabal Suite|31544|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76|1999 Forbes 1:250 000 sheet shows unit to be Late Silurian-Early Devonian.|Medium to coarse grained, pink, biotite granite|acid intrusive rock|||Y||17-JAN-23
Caragabal Suite|31544|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Carawandool Volcanics|31459|Milpose Volcanics|26031|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Trundle Group|29079|||Lower Devonian||||eruption|Lower Devonian|403.8|2.1||||||No|22466||Raymond, O.L.|07-AUG-97|||Previously mapped as the southern part of the Milpose Volcanics on the Forbes 250k metallogenic map.|Grey and maroon, flow banded rhyolite and dacite lavas; minor basalt, andesite, andesitic breccia and conglomerate, felsic and mafic tuffs, ignimbrite, epiclastic and quartzose sediments|acid volcanic rock||oceanic backarc|N||17-JAN-23
Carboniferous felsic volcanics 76524|76524|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|314|||eruption|Mississippian|354|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanics, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Carboniferous granites 76526|76526|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Gzhelian|300|||intrusion|Visean|330|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic intrusive rocks.  Range in composition from alkali feldspar granite to tonalite; includes associated rocks such as migmatite and minor gabbro and diorite.|acid intrusive rock|||Y||17-JAN-23
Carboniferous sediments, metasediments 78228|78228|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY. Age given as Carboniferous?|Sandstone, schist, phyllite,slate, chert, jasper, basalt, tuff and amphibolite.|medium-coarse grained siliciclastic rock|metasedimentary siliciclastic rock||N||24-FEB-23
Carcoar Granodiorite|3588|Carcoar Granite|3587|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Carcoar Suite|34302|Lower Devonian|407|4|isotopic, Rb/Sr|intrusion|Late Silurian|434.4|5.5|isotopic, U/Pb-Pb/Pb ion probe|||||No|42802||||||Originally named Carcoar Granite and included two sub units; Stokefield Diorite (see Stokefield Metagabbro) and Long Hill Diorite (obselete).  Intrudes the Coombing Formation and Stokefield Metagabbro. See also RefID 67060 p505.|Hornblende biotite granodiorite and tonalite.|acid intrusive rock|||Y|I-type|06-SEP-23
Cardinal View Formation|40934|Cardinal View Shale|3599|||Yes|Formation, beds|Formal|Variation of published name|Defined|Bungonia Group|34589|||Ludlow||||deposition|Wenlock||||||||No|50234|||||||Basal fossiliferous, biostromal limestone; overlain by a coarsening-upward, graded, siliciclastic sequence of shale, siltstone and sandstone. Numerous mass flow deposits up to 4cm thick, consist of shale, sandstone and limestone clasts (up to 1m).|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Carellan beds|3604|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|31519|||||||||||N||17-JAN-23
Cargelligo Formation|33857|Cargelligo Group|3607|||Yes|Formation, beds|Formal|Variation of published name|Described|Rast Group|23935|||Lower Devonian||||deposition|Lower Devonian||||||||No|22508||||||Intersected by the Booligal No.2 well at 293-811m.|Sandstone, siltstone and cleaved slate.|siliciclastic sedimentary rock|||N||17-JAN-23
Cargo Creek Limestone|3610|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cabonne Group|21409|||Katian||||deposition|Katian||||||400||No|44086||||||First used Carne & Jones (1919). See also Lexicon. Molong-Wellington Volcanic Belt.|Mostly composed of massive, dark grey limestone.|carbonate sedimentary rock|||N||17-JAN-23
Cargo Volcanics|3613|||||Yes|Formation, beds|Informal|Variation of published name|Described|Cabonne Group|21409|||Sandbian|455|||eruption|Darriwilian|470|||||||No|43357||||||Invalid name. Variation on Cargo Andesite. Cargo Creek Limestone has priority. Proposed to be included in Fairbridge Volcanics in 1998, but subsequently found to be geochemically distinct, so name reinstated in ~2011. Molong-Wellington Volcanic Belt.|A basaltic andesite-dominated succession of massive and pillow lava, volcanic breccia, high-level porphyritic sills and dykes, and a smaller volume of volcaniclastic rocks interpreted as turbidites and debris-flow deposits.|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
Carlachy Sandstone Member|33398|Carlachy|30487|||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Weddin Sandstone|27609|||Famennian||||deposition|Famennian||||||350||No|50299||Sherwin L.|09-SEP-96|||Bogan Gate 1:100 000 sheet area.  Essentially a wedge or lens within the Cloghnan Shale.|Sandstone|siliciclastic sedimentary rock|||N||11-SEP-23
Carlton Formation|25834|Carlton Conglomerate|3627|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Canangle Subgroup|3442|||Mississippian||||deposition|Mississippian||||||120|NSW|No|32151|32151|||||Do not confuse with Carlton nomenclature in Northern Territory.|Massive oligomictic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Carlton ultramafic|82828|Carlton Igneous Complex|77337|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Annular structure with a NE axis of elongation; found in the Gregar and Horton Park prospects. Used in GSNSW seamless geology dataset 2023.|Ultramafic igneous rock.|ultramafic igneous rock|||U||13-JUN-23
Carlwood granite|23470|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|36600||R.Facer|25-JUL-78||||Granite|acid intrusive rock|||Y||17-JAN-23
Carne Dacite Member|23473|||||Yes|Member, phase|Formal|Other new published name|Redefined|Tangerang Formation|27094|||Pragian||||eruption|Lochkovian|||||||NSW|No|39568|39568|B.G.Jones|28-JAN-83||||Small, greenish-grey, massive to rarely flow banded and autobrecciated, medium-grained, porphyritic intrusive dacite bodies at various stratigraphic levels within the formation. Abundant phenocrysts of plagioclase and altered pyroxene and minor hornblende|acid volcanic rock|||N||17-JAN-23
Caroda Formation|3651|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Visean||||||650|NSW|No|43435|37987|||||Includes fossiliferous sandstone.|Cross bedded lithic arenite and conglomerate, subordinate laminated shale, siltstone, lenticular oolitic limestone, magnetite horizons. Succeeded by coarse fluvial litharenite, minor pebbly sandstone, shale, thin coal, conglomerate and andesitic tuff.|siliciclastic sedimentary rock|metamorphosed igneous rock|forearc|N||17-JAN-23
Carolees Granite|23474|||||Yes|Formation, beds|Informal|Resvd name published|Fully described|||||Famennian||||intrusion|Frasnian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area.|Granite|acid intrusive rock|||Y||17-JAN-23
Carolina Forest Formation|30985|Carolina Forest Schist|21453|||Yes|Formation, beds|Formal|Resvd name published|Defined|Tottenham Subgroup|30980|||Darriwilian||||deposition|Tremadocian||||||750||No|43441|22831|||||Part of the Tottenham Subgroup, Girilambone Group.|Basic schist with banded magnetite quartzite.|metamorphic rock|||N||17-JAN-23
Caroona Coal Member|77377|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Benelabri Formation|41275|||Permian||||deposition|Permian||||deposition||||No|||Greenfield, J. (GSNSW)|26-SEP-12|||Used in GSNSW seamless geology dataset 2021. This name revived by GSNSW 14-JUN-2012. See also Caroona Seam.|Coal with consistent lithotype profile, bright layered basal section overlain by dull coal with minor bright bands, an uppermost bright banded section. Thin carbonaceous claystone separates the three sections|organic rich sedimentary rock|||N||27-APR-23
Carrabear Formation|29530|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Pleistocene|1.34|.29||deposition|Upper Pleistocene|2.56|.39|||||NSW|No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area|||||N||17-JAN-23
Carrai Granodiorite|3671|Carrai Adamellite|28439|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Carrai Supersuite|82123|Middle Triassic|224||isotopic, Rb/Sr|intrusion|Lower Triassic|242|11||||||No|35664||||||See also Carrai Adamellite, Carrai Granite. Previously within Round Mountain Supersuite.|Hornblende-biotite granodiorite, and monzogranite, minor biotite leucogranite. Granitoids of unnamed suite (Gundle granitoid belt) I-type granitoids and leucogranites|acid intrusive rock|||Y|I-type|27-AUG-23
Carrai Supersuite|82123|Carrai Suite|73981|||Yes|Supergroup|Informal|Variation of reserved name|Briefly described|||||Upper Triassic|||||Carnian|232.7|1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72528||||||Includes Botumburra Range Monzogranite, Botumburra Suite. Age from Botumburra Range Granodiorite. Used in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.||acid intrusive rock|||Y||17-JAN-23
Carramere Coal Member|3673|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Lucernia Coal|10842|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Carramundra Member|40759|Carramundra|39894|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Kasimovian||||eruption|Moscovian|309|4|isotopic, U/Pb-Pb/Pb ion probe|||320|NSW|Yes|50613|50613|Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|Volcanic member of the Piney Range package (informal grouping of stratigraphically recognisable distinctive, mappable units).|Contains three beige ignimbrites, the informal Carramundra beds a, b and c.|acid volcanic rock|||N||17-JAN-23
Carrington Formation|79942|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17||||Magnetic mafic schist.|low-intermediate grade metamorphic rock|||N||17-JAN-23
Carsonville Formation|3698|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pennsylvanian||||deposition|Pennsylvanian||||||||No|32671|||||||||||N||17-JAN-23
Cartwrights Creek Metasediments|26257|||||Yes|Formation, beds|Formal|Other new published name|Defined|Paragon Group|14860|||Statherian|1655|7|inferred, overlying unit|deposition|Statherian|1754|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1000|NSW|No|38969|39662|B.P.J.Stevens|25-JAN-82|||Within the Willyama Supergroup. Equivalent of Alconie Formation in Olary Domain. From 2008 includes Campbells Creek Metasediments (?of Euriowie Inlier). Advice GSNSW May 2011.|Dark grey, graphitic phyllite, after chiastolite schist. Includes fine-grained graphitic metasandstone in upper section.|metasedimentary rock||continental rift|N||17-JAN-23
Carwell Creek Formation|3712|Carwell Creek Beds|27736|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kandos Group|29513|||Emsian||||deposition|Pragian||||||1050||No|42379|23170|||||Originally Carwell Creeks beds.|Lithic arenite, crinoidal lithic arenite, shale, basal limestone. Contains corals, stromatoporoids, brachiopods, conodonts.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||11-SEP-23
Carwoola Formation|3716|Carwoola Beds|3715|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hoskinstown Group|8512|||Late Silurian||||deposition|Late Silurian||||||1200|NSW|Yes|32820|42820|Abell, R.S. (after Richardson, 1979)|02-APR-07||||Sandstone, siltstone, shale|siliciclastic sedimentary rock|||N||17-JAN-23
Cary Formation|28440|Cary Beds|3718|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cudal Group|4974|||Ludlow||||deposition|Wenlock||||||250|NSW|No|40328|40328||||||Mainly shale and chert; minor quartzo-feldspathic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cascade Creek beds|26465|Cascade Creek Beds|3729|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Woolomin Association""|42341|||Early Paleozoic|||||Early Paleozoic||||||||No|41348|||||||||||N||17-JAN-23
Castlemaine Group|36202|Castlemaine Supergroup|27738|||Yes|Group, Suite|Formal|Variation of published name|Defined|Lachlan Supergroup|82541|||Darriwilian|450||inferred, biostratigraphic correlation|deformation|Tremadocian|490||inferred, biostratigraphic correlation|deposition||6000||No|24276|64612|||||Upgraded to Castlemaine Supergroup by Cas & VandenBerg (1988) but relegated to group status by VandenBerg et al (2000) IN Geology of Victoria 2003 (refid 24551). Can be subdivided biostratigraphically using graptolites.|Marine turbiditic sandstone, siltstone, mudstone, black shale; minor granule conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Cataract Creek Granodiorite|82384|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||The Brothers Suite|77628|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|71628|||||||Granodiorite.|acid intrusive rock|||Y|A-type|16-AUG-23
Cataract River Member|3779|Cataract River Formation|28443|||Yes|Member, phase|Formal|Unknown or process pending|Described|Drake Volcanics|28513|||Late Permian||||deposition|Late Permian||||||||No|39279||||||Of Drake Volcanics. Name not broadly accepted.|||||N||17-JAN-23
Cathcart Monzogranite|77032|Cathcart Adamellite|33672|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Monzogranite, aplite|acid intrusive rock|||Y||05-SEP-23
Cathcart Suite|31521|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Adamellite, Granite|acid intrusive rock|||Y||17-JAN-23
Cathedral Group|3787|||||Yes|Group, Suite|Formal|Other new published name|Described|Murrindindi Supergroup|35522|||Middle Devonian||||deposition|Emsian||||||4000||No|33238||||||"Geology of Victoria", 1989, indicates in Fig 4.1 & 5.3 that Cathedral Beds and Koala Creek Beds (p153;Fig5.2) are part of Cathedral Group (p115).|Fluvial sandstone, conglomerate, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Catherine Hill Bay Formation|3791|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Moon Island Beach Subgroup|12215|||Lopingian||||deposition|Lopingian||||||||No|43447||||||Of Moon Island Beach Subgroup, Newcastle Coal Measures. This name has been dropped [in 1999], but apparently reinstated in ~2015. Updated from GSNSW seamless geology dataset 2021.|Quartz-lithic pebble polymictic conglomerate, quartz-lithic sandstone, shale, carbonaceous shale, coal and tuff.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||02-SEP-23
Catombal Group|3797|Catombal Formation|3795|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Famennian||||deposition|Givetian||||||2000||No|43528|43512|||||Defined 1963 by Conolly.  Comprised of Canangle and Blackrock Subgroups.|Massive to bedded, red to brown, purple and green quartz and lithic sandstone, siltstone, shale and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Cauldwell Vale Conglomerate Member|3818|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lower Devonian||||deposition|Late Silurian||||||||No|35287|||||||Massive unsorted, largely unstratified pebble to boulder conglomerate and coarse-grained pebbly quartz -lithic sandstone.|medium-coarse grained siliciclastic rock|||N||05-SEP-23
Cavan Bluff Limestone|3824|Cavan Formation|3826|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Murrumbidgee Group|27854|||Pragian||||deposition|Pragian||||||||No|12185||||||Same unit as variations - Cavan Limestone and Cavan Formation.|Blue-grey, massive, thin to medium bedded, flaggy, impure, silty limestone interbedded with shale overlain by medium-thick bedded highly fossiliferous limestone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cave Creek Limestone|3832|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Late Silurian||||deposition|Late Silurian||||||450||No|60086|||||||Massive limestone|carbonate sedimentary rock|||N||17-JAN-23
Cedar Party Limestone|3853|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Manning Group|11186|||Permian||||deposition|Permian||||||120||No|43385|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Celeys Creek Monzogranite|76977|Celeys Creek Adamellite|21475|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. No longer included in Bombala Suite. Used in GSNSW seamless geology dataset 2021.|Very leucocratic, weathered, variably either massive or foliated, biotite monzogranite; granitic texture with an absence of xenoliths.|acid intrusive rock|||Y|I-type|17-JAN-23
Cemetery Creek Tonalite|32271|Cemetery Creek Granodiorite|21477|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Tom Groggin Suite|18286|Silurian||||intrusion|Silurian||||||||No|44092||||||Kosciusko 1:100 000 sheet area.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Cenozoic intrusive complexes 76539|76539|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Miocene|11|||intrusion|Miocene|12|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mixed felsic, mafic and/or alkaline intrusives; may include ultramafic rocks; includes alkaline rocks such as trachyte and syenite.|igneous intrusive rock|||Y||17-JAN-23
Cenozoic intrusive complexes 76540|76540|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Early Miocene|25|||intrusion|Chattian|27|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Note: Min Age name does not match numerical age (Late Oligocene) CEB Feb-2012]|Mixed felsic, mafic and/or alkaline intrusives; may include ultramafic rocks; includes alkaline rocks such as trachyte and syenite.|igneous intrusive rock|||Y||17-JAN-23
Cenozoic mafic volcanics 76538|76538|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Holocene|0|||eruption|Paleocene|65|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly basaltic rocks; may include minor ultramafic volcanics.|basic volcanic rock|||N||17-JAN-23
Cenozoic regolith 76541|76541|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Holocene|0|||deposition|Paleocene|65|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Surficial or regolith units; poorly consolidated alluvial, colluvial, aeolian, lacustrine and coastal deposits; residual deposits (eg, laterite).|regolith|||N||17-JAN-23
Cenozoic regolith 76542|76542|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Holocene|0|||deposition|Paleocene|65|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Surficial or regolith units; poorly consolidated alluvial, colluvial, aeolian, lacustrine and coastal deposits; residual deposits (eg, laterite).|regolith|||N||17-JAN-23
Central Valley Breccia Member|81964|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Siding Spring Formation|81962|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Volcaniclastic polymictic breccia, variably pyritic; rare metasedimentary clasts. Inferred near-vent deposits.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Cerberean Volcanics|3873|Cerberean volcanics|3878|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Upper Devonian||||eruption|Devonian|367.1|2.3|isotopic, Rb/Sr|||1000||No|43461|||||||Volcanics.|igneous rock|||N||17-JAN-23
Cessnock Sandstone Member|24835|Cessnock Sandstone|3881|||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Permian||||deposition|Permian||||||16|NSW|No|43447|34345||||||Sandstone|siliciclastic sedimentary rock|||N||02-SEP-23
Chaelundi Complex|3883|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||||Upper Triassic|233|3|isotopic, U/Pb|intrusion|Upper Triassic|237.7|1.5|isotopic, Rb/Sr|||||No|31806||||||See also Chaelundi Adamellite, Chaelundi Leucomonzogranite (Chaelundi Complex - Felsic leucocratic phase), dated at : 233 +/- 3 Ma; U-Pb zircon (Phillips et al. 2011).|Coarse-grained leucocratic hornblende-biotite granite, granodiorite, marginal quartz porphyries in places. May be altered near Demon Fault|acid intrusive rock|||Y||24-AUG-23
Chaelundi Mountain Monzogranite|82124|Chaelundi Complex|3883|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||Dandahra Creek Suite|80727|Middle Triassic|||inferred||Middle Triassic|237.7|1.5|inferred|magmatic crystallisation||||No|71628||||||This name not used in quoted reference - Chisholm et al., 2014a. Used as part of the Dandahra Creek Suite, and not part of the ungrouped Chaelundi Complex in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408|A-type granites.|acid intrusive rock|||Y|A-type|23-AUG-23
Chain Valley Coal Member|3886|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Eleebana Formation|6050|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|37083||||||This Member was dropped [1999]. Formerly of Eleebana Formation, Moon Island Beach Subgroup, Newcastle Coal Measures. These rocks likely to be part of Boolaroo Formation. Original name and relations reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Coal with minor thin tuffaceous claystone bands and/or rare ?carbonaceous claystone bands.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Chalk Mountain Formation|24605|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Langhian||||deposition|Burdigalian|||||15|18|NSW|Yes|38689||Holmes W.B.K., Holmes F.M.|05-APR-82|NSW SNSC|10-DEC-83||Lacustrine sediments of white to pale grey siltstone, mudstone and clay with interbedded diatomite, tuff and one lignite band near the top.|siliciclastic sedimentary rock|||N||25-SEP-23
Chalkers Ridge Member|81960|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Shawns Creek Formation|81958|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Massive to weakly bedded volcaniclastic breccia comprising quartz crystals and felsic coherent clasts in a glassy matrix.|acid volcanic rock|||N||17-JAN-23
Champion-type granite|34499|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|22771|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Chapmans Creek Granite|3911|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||Lockyersleigh Suite|31604|Carboniferous||||intrusion|Carboniferous||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Charbon Subgroup|3917|Charbon Sub-Group|3915|||Yes|Subgroup|Formal|Unknown or process pending|Redefined|Illawarra Coal Measures|27802|||Wuchiapingian|||||Capitanian|||||||NSW|No|39232|40806|||||Redefined 1986. See also definition data for Charbon Sub-Group.|Delta plain sediments with marine incursions: sandstone, siltstone, claystone, coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Charcoal Tank Granite|32689|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Ungarie Suite|31652|Early Silurian||||intrusion|Llandovery||||||||No|22434||Duggan M. Lyons P.|05-AUG-98|||Wyalong 1:100k sheet area.|Medium-grained, cordierite-bearing two-mica granite|acid intrusive rock|||Y||17-JAN-23
Charlestown Conglomerate Member|3921|Charlestown Conglomerate|3922|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Tickhole Formation|27913|||Lopingian|||inferred|deposition|Lopingian|||inferred|||109||No|43447||||||Newcastle Coalfield. This Member was dropped [1999]. Formerly of Tickhole Formation, Adamstown Subgroup, Newcastle Coal Measures. These rocks were included in the Adamstown Formation, but original nomenclature reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Charlton Formation|3925|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|29942||||||Formerly of Apple Tree Flat Subgroup. Updated from GSNSW seamless geology dataset 2021.|Sandstone, siltstone and minor shale, bounded at the top by inferior coal and at the base by a distinctive biotite rich tuffaceous claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Charon Creek Quartz Diorite|82385|Charon Creek Diorite|75959|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Bakers Creek Supersuite|75958|Cisuralian|||inferred||Cisuralian|290.4|3.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dark grey, medium-grained quartz diorite; minor tonalite.|intermediate intrusive rock|acid intrusive rock||Y|I-type|17-JAN-23
Chateau Douglas Sandstone Member|28221|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Kingsfield Formation|9617|||Tournaisian||||deposition|Tournaisian|||||||NSW|No|35245|35245|||||Age: entirely Early Tournaisian.|Lithic sandstone with scattered volcanic pebbles and magnetic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Chaucer Redbed Member|3937|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Waugoola Group|19623|||Llandovery||||deposition|Llandovery||||||||No|35258|||||||||||N||17-JAN-23
Checkers Member|3938|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Regans Creek Limestone|26869|||Upper Ordovician||||deposition|Upper Ordovician||||||48||No|32151||||||48m thick at type section.|||||N||17-JAN-23
Cheesemans Creek Formation|24837|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cabonne Group|21409|||Katian|||biozone|deposition|Katian|||biozone|||900||No|33116||||||Molong-Wellington Volcanic Belt.|Basaltic andesite, mafic and quartz latite, siltstone, sandstone, breccia, conglomerate.|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Cheitmore Limestone Member|28449|Cheitmore Limestone|28192|||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock|||||||NSW|Yes|39028|40276|Owen M.||Russell, T.|14-SEP-82|Formerly considered to be part of Long Flat Volcanics.|Grey, strongly recrystallised massive sporite, rare patches of crinoid ossicles present. Recrystallisation caused by the Braidwood Granodiorite, which crops out close by.|carbonate sedimentary rock|||N||17-JAN-23
Chellington Quartz Syenite|21487|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22638||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area.|Alkali feldspar quartz syenite|acid intrusive rock|||Y||17-JAN-23
Chesleigh Group|30854|Chesleigh Formation|3957|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Pridoli|417|5||deposition|Ludlow|420|5||||3000||No|22529|23170|Colquhoun G., Meakin S.|30-JAN-97|||To replace Chesleigh Formation. In Mudgee area.|Felsic volcaniclastic, quartz-lithic, feldspar-lithic and quartzose sandstone, siltstone, slate, shale; crystal and vitric tuff; breccia and conglomerate; chert, felsic porphyry.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Chesney Formation|3959|Chesney Greywacke|27366|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Nurri Group|14417|||Lochkovian||||magmatic crystallisation|Ludlow|423.2|3.5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1400|NSW|No|29621|43032|||||Maximum age provided by concordant [detrital?] zircons [from sandstone?] at 421 and 433 Ma (RefID 69002). SHRIMP ages from Black (2007) and Bodorkos et al. (2013) are of rhyolite flows within the Chesney Formation.|Thick bedded, massive and graded, coarse to fine-grained quartz-lithic sandstone interbedded with siltstone and mudstone. Pebbles and cobbles are abundant in conglomeratic units at or near the base. Interbedded with rhyolite flows.|siliciclastic sedimentary rock|acid volcanic rock||N||03-AUG-23
Cheviot Hills Granite|82387|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023.|Felsic intrusive.|acid intrusive rock|||Y|I-type|23-AUG-23
Cheyenne Complex|3972|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian||||intrusion|Cisuralian|280|2.8|isotopic, U/Pb|||||No|31806||||||Previously of the Hillgrove Supersuite. To become part  of the Bakers Creek Supersuite. See also Cheyenne complex.|Pyroxene gabbro, diorite, monzogranite, granophyre; calc-alkaline and tholeiitic complexes associated with the Hillgrove Plutonic Suite|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Chichester Formation|24219|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Visean||||deposition|Visean||||||1006|NSW|Yes|35953|39660|Roberts, J.|23-JAN-74|NSW SNSC|||Thinly bedded mudstone and siltstone, interbeds of thick to medium bedded grey to brown lithic sandstone and conglomerate. Contains a basal member of conglomerate and lensoidal volcanics|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Chilcotts Creek Ignimbrite Member|70476|Chilcotts Creek|36751|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian|310|||||15||No|62095|62095|||||Age: ~310Ma. Thickness: ~15m.  In the Werrie block/Tamworth Belt.|Beige, slightly welded to to unwelded ignimbrite.|acid volcanic rock|||N||02-JUN-23
Childowla Quartz Monzonite|40949|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Childowla Suite|73233|Pragian||||intrusion|Emsian||||||||No|50230||||||Also referred to as Childowla Granite (per email from O.Thomas 31/1/06) and is the only pluton in the Childowla Suite. GSNSW State list 2012 places this unit in the Boggy Plain Supersuite.|Medium-fine grained, foliated, equigranular, biotite-hornblende-quartz monzonite to granodiorite; high magnetic susceptibility.|intermediate intrusive rock|||Y||17-JAN-23
Childowla Suite|73233|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||Boggy Plains Supersuite|34323|Devonian|||||Devonian||||||||No|64238||Pogson, D. (GSNSW)|07-MAY-07|||Contains one component pluton, the Childowla Quartz Monzogranite, which is a pink, medium- to fine-grained, equigranular, quartz monzonite to granodiorite. To be pub: 2007/2008 GOULBURN Geological Notes (GSNSW). Note: This Suite name appears to have been dropped. it no longer appears in the 2012 GSNSW State list. Reappears in the 2013 Yass 1:100 000 sheet (2nd ed).|Medium-fine grained, foliated, equigranular, biotite-hornblende-quartz monzonite to granodiorite; high magnetic susceptibility.|intermediate intrusive rock|||Y||17-JAN-23
Chillingham Volcanics|3991|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Upper Triassic||||eruption|Upper Triassic||||||1500||No|43384||||||These volcanics appear to be older than the Clarence-Moreton Basin and younger than the Ipswich Basin.|Rhyolite, lithic rhyolitic tuff, shale, basal cobble conglomerate.|acid volcanic rock||oceanic backarc|N||23-AUG-23
Chinghee Conglomerate|4013|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Focal Peak Volcanic Complex|83656|||Chattian|||inferred|deposition|Chattian|||inferred, geological correlation|||30.5||No|44871|44871|||||Defined 1961. Previously said to be of Lamington Volcanics, but they underlie this unit. Said to be of Focal Peak Volcanic Complex in 2021. Age range from GSNSW seamless geology 2021. Unit hasn't be directly dated and is assigned a date based on the Focal Peak Volcano.|Lacustrine coarse sandstone and conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Chowilla Sand|4042|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Chibanian||||deposition|Piacenzian||||||10|SA|No|34180|42966|||||Occurs at base of Blanchetown Clay. Well-sorted sand unit considered as separate from Blanchetown Clay by Firman (1973) but as part of it by Gill (1973) who interpreted it to interbed with the clay, showing the sand is possibly reworked Loxton-Parilla Sand.  See also Chowilla Sand Member.|Dark-yellow to pale-yellow fine quartz-sand.|sediment|||N||17-JAN-23
Christine Judith Conglomerate|26477|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Pintapah Subgroup|15278|||Neoproterozoic|802|10|inferred, geological correlation|deposition|Neoproterozoic||||||150||No|30261||||||Age stated to be: >802+/-10Ma from correlation with South Australian units [ in 1998].|Monomictic conglomerate with rounded, well-sorted quartzite pebbles and cobbles in a quartzite matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Cintra Coal Member|80145|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Clagger Sandstone|4080|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Beargamil Subgroup|1321|||Famennian||||deposition|Famennian||||||259|NSW|No|43510|43507|||||of the Hervey Group.  NARROMINE sheet.|Red, poorly sorted sandstones and pebbly sandstone, lesser red shales and siltstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Claire Creek Limestone Member|4081|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Cowombat Siltstone|25864|||Devonian||||deposition|Devonian||||||||No|37727|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Clandulla Limestone|30040|Clandulla|21503|||Yes|Formation, beds|Formal|Resvd name published|Defined|Kandos Group|29513|||Lochkovian||||deposition|Lochkovian||||||170||No|43188|23170||||||Limestone and dolomite, carbonaceous shale.|carbonate sedimentary rock|||N||17-JAN-23
Clanricard Coal Member|26479|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Sydney Basin.|Dull and bright finely banded coal, fusainous, minor calcite; brown waxy to carbonaceous claystone, carbonaceous to coaly shale|organic rich sedimentary rock|||N||17-JAN-23
Clare Sandstone|30032|Clare Sandstone Member|4092|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Coogal Subgroup|30031|||Lopingian||||deposition|Lopingian|257.33|.57|isotopic, U/Pb-Pb/Pb, TIMS|deposition||95||No|43194||||||Used in GSNSW seamless geology dataset 2021.|Medium to coarse-grained quartzose sandstone; quartzose conglomerate.|siliciclastic sedimentary rock|||N||27-APR-23
Claremont Gabbronorite|81799|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian|415.8|4.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||Eastlake, M. (GSNSW)|06-JAN-20|||Tarcutta 1:100 000 map sheet area, 8427, Wagga Wagga 1:250k, SI55-15. The unit intrudes the northwest margin of the mid-Silurian Ellerslie Granodiorite and is dated at 415.8 +/- 4.6 Ma (Bodorkos et al. in prep.). The unit is expected to be incorporated into the Geological Survey of New South Wales Stratigraphic Unit Tables in 2020. Published in GSNSW seamless geology.|Dark greenish-grey, medium-grained, subequigranular, hornblende-bearing gabbronorite with patchy coarse-grained amphibole-quartz-feldspar segregations developed near the pluton margins.|basic intrusive rock|||Y||26-SEP-23
Clarence River Supersuite|36112|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Lopingian|255|1|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lopingian|256|1.4||||||No|61795||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. Note: Greymare Granodiorite of the Greymare Suite, now in Clarence River Supersuite (In Geology of Queensland 2013, p457 and p464). Quoted age from Cullens Creek Granite, but this is no longer considered part of the Supersuite.|Calcic and sodic, predominantly dioritic, tonalitic and granodiorite intrusive rocks; I-type granite.|acid intrusive rock|||Y|I-type|16-OCT-23
Clarendon Formation|4098|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Holocene||||deposition|Pleistocene|||||4|8|NSW|Yes|31056|42925|Gobert V.||Hawke, J.|27-AUG-77|In Cumberland Basin stratigraphy IN The geology of the Penrith 1:100 0000 Sheet (94/27858)|Sand, clayey loam, clay content increases with depth. Transported ironstone pisolites concentrated towards top of unit.|regolith|sediment||N||17-JAN-23
Clareval Coal Member|77609|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Alum Mountain Volcanics|342|||Permian|||inferred|deposition|Permian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Myall Syncline. Used in GSNSW seamless geology dataset 2021.|Coal.|organic rich sedimentary rock|||N||17-JAN-23
Clarevale Barite Member|40924|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|De Drack Formation|5292|||Wenlock||||deposition|Wenlock||||||||No|50234||||||Shown as unnamed unit Sfdb on Goulburn 1:250 k map (2013) and Explan Notes (2012).|Off-white, grey and red-brown laminated to very thinly bedded barite with ferruginous laminae.|sedimentary rock|||N||17-JAN-23
Clay Bed|35169|||||Yes|Bed|Informal|Other new published name|Mentioned|Dudley Seam|5756|||||||deposition|||||||||No|23055||||||Newcastle Coal Measures.|Clay|sediment|||N||17-JAN-23
Clear Creek Formation|4124|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Tumut Pond Group|26961|||Silurian||||deposition|Silurian||||||570||No|34405|||||||Rhythmically bedded sandstone and slate|siliciclastic sedimentary rock|||N||17-JAN-23
Clear Hills Monzodiorite|33400|Clear Hills Granite|4125|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|24417||||||Also used on Forbes 1:250 000 prelim. 1999.|Augite-hypersthene-biotite quartz monzodiorite|intermediate intrusive rock|||Y|I-type|17-JAN-23
Clear Range Granodiorite|4128|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Clear Range Suite|31567|Late Silurian||||intrusion|Late Silurian|||||||ACT|No|45003|36413|||||Type area on Clear Range (ACT/NSW border). Sample 20535 (Joyce, 1973a,b), from GR 814533 is said to be fairly representative. References imply that this location is in the ACT.|Xenolith-rich granodiorite, muscovite biotite granodiorite to tonalite|acid intrusive rock|||Y|S-type|17-JAN-23
Clear Range Suite|31567|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bullenbalong Supersuite|2897|Lower Devonian|||||Silurian||||||||No|42726|||||||Granite, granodiorite and tonalite|acid intrusive rock|||Y||17-JAN-23
Clearview Limestone Member|25846|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ballingoole Limestone|28166|||Upper Ordovician||||deposition|Upper Ordovician||||||152|NSW|No|33063|33063|||||Age determined by fossil assembleges.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Clematis Group|4137|Clematis Sandstone|4139|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Middle Triassic|||biozone|deposition|Lower Triassic|||biozone|deposition||||No|30914||||||Replaces Clematis Sandstone in Bowen Basin, but not Galilee Basin, where Clematis Sandstone still used. However, used in Galilee Basin in RefID 68411.|Medium to coarse-grained, cross-bedded, quartzose to sublabile and micaceous sandstone; siltstone, mudstone and granule to pebble conglomerate; some fine conglomerate and grey and red mudstone.|siliciclastic sedimentary rock||intracratonic|N||17-JAN-23
Clevedale Migmatite|4144|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Willyama Supergroup|20135|||Statherian|||||Statherian||||||425|NSW|No|38969|39662|B.P.J.Stevens|25-JAN-82|||Part of the Willyama Supergroup. See proposed change to Clevedale Migmatite Member (June 2012). Appears as Clevedale Migmatite and constituent of Thorndale Composite Gneiss (in RefID 70015; 2015).|Metasedimentary pelitic to psammitic migmatite. Partially melted metasediments with or without albitic alteration.|metasedimentary siliciclastic rock||continental rift|N|A-type|17-JAN-23
Clevedale Migmatite Member|76946|Clevedale Migmatite|4144|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Thorndale Composite Gneiss|18082|||Paleoproterozoic|||||Paleoproterozoic||||||||No|62993||Greenfield, J. (GSNSW)|14-JUN-12|||See previous name for definition. GSNSW using this name in State dataset [June 2012]. Clevedale Migmatite appears as constituent of Thorndale Composite Gneiss (in RefID 70015; 2015).|Migmatite to migmatitic composite gneiss, sporadically leucocratic; minor basic gneiss and rare, thin, plagioclase-quartz rock and medium-grained biotite-rich quartzo-feldspathic gneiss|high grade metamorphic rock|||N||17-JAN-23
Cliefden Caves Limestone Subgroup|31725|Cliefden Caves Limestone Group|4145|||Yes|Subgroup|Formal|Variation of published name|Defined|Cabonne Group|21409|||Upper Ordovician||||deposition|Upper Ordovician||||||460|NSW|No|43782|23214|||||Molong-Wellington Volcanic Belt. Previously defined as Cliefden Caves Limestone Group, 1982.|Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Clifden Formation|4147|||||Yes|Formation, beds|Formal|Other new published name|Defined|Currangandi Group|38099|||Bashkirian||||deposition|Serpukhovian||||||650||No|43435|43435|||||Geological Province: Boomi, Kathrose and Darthula blocks.|Cross bedded coarse grained fluvial feldspathic and lithic sandstone, subordinate orthoconglomerate, mudstone, carbonaceous shale, rhyodacitic ash flow vitric tuff|siliciclastic sedimentary rock|acid volcanic rock|forearc|N||17-JAN-23
Clifford Formation|4152|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Horseshoe Creek Subgroup|8506|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|29942||||||Included in Horseshoe Creek Subgroup, Wollomombi Coal Measures in 2002, but part of Newcastle Coal Measures by 2015. Updated from GSNSW seamless geology dataset 2021.|A dominantly sandstone sequence with minor tuffaceous claystone and vestigial coal beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Cliffs Tank Complex|73522|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Paleozoic|||||Paleozoic||||||||No|66918|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Interpreted to be a serpentinite melange within the Mount Wright Fault zone.|Serpentinised pyroxene-olivine melange with knockers and clasts of dolerite, Kara Formation and Ponto Group.|metamorphosed ultramafic rock|basic intrusive rock||N||04-SEP-23
Clift Coal Member|77386|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Trinkey Formation|18599|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Gunnedah Basin. See also Clift Seam.|Coal, internally characterised by five lithotype profiles, primarily bright and dull plies in lower two sections, bright plies decrease markedly in the upper three sections,  carbonaceous claystone layers separate sections|organic rich sedimentary rock|||N||17-JAN-23
Clifton Subgroup|4163|Clifton Sub-Group|4160|||Yes|Subgroup|Formal|Other new published name|Described|Narrabeen Group|13874|||Lower Triassic||||deposition|Late Permian||||||492||No|43317|||||||Sandstone, claystone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Cliftonwood Limestone Member|4165|Cliftonwood Limestone|4167|||Yes|Member, phase|Formal|Variation of published name|Defined|Yass Formation|20908|||Wenlock||||deposition|Wenlock||||||65|NSW|No|38035|68592|||||Interbedded with the O'Briens Creek Sandstone Member within the Yass Formation.|Well bedded, stromatolitic, calcareous mudstone; poorly fossiliferous limestone, micritic nodular limestone, intraclastic limestone, interbedded mudstone and fine-medium grained sandstone; algal biomicrite and intramicrudite with abundant fossils.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Clive Leucomonzogranite|82388|Clive Monzogranite|38274|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bolivia Range Suite|73987|Lopingian|||||Lopingian|254.6|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628|||||||Pale buff to white, coarse-grained, equigranular biotite-(hornblende) leucomonzogranite. Banded sedimentary xenoliths and igneous xenoliths common locally. I-type.|acid intrusive rock|||Y|I-type|22-AUG-23
Cloghnan Shale Member|76947|Cloghnan Shale|4177|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Euchabil Gap Formation|32326|||Upper Devonian||||deposition|Upper Devonian||||||||No|||Greenfield, J. (GSNSW), Young , G.C.|14-JUN-12|||Name changed to reflect rank as Member of Euchabil Gap Formation (noted by Young 2006). Published in GSNSW seamless geology. Lith desc from 2023 version.|Maroon siltstone and shale.|fine grained siliciclastic rock|||N||27-SEP-23
Clonolly Ignimbrite Member|32327|Clonally Ignimbrite Member|30991|||Yes|Member, phase|Formal|Variation of published name|Fully described|Kadungle Volcanics|24325|||Pragian||||eruption|Lochkovian||||||2000||No|22831||||||Name misspelt when first published.|Fine-grained laminated ignimbrite; contains brachiopods.|acid volcanic rock|||N||17-JAN-23
Cloughers Creek Formation|28458|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Nymboida Coal Measures|14438|||Middle Triassic||||deposition|Middle Triassic||||||||No|34340|||||||Medium-grained, blue-green lithic sandstone, sporadically brecciated and clayey; light grey siltstone, silty shale, carbonaceous shale and coal; basal polymictic pebble-conglomerate with angular clasts in a silty matrix.||||N||19-JUL-23
Cloverdale Coal Member|77427|Cloverdale seam|38305|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Jilleon Formation|23668|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Of Craven Subgroup, Gloucester Basin.|Banded coal seam  with variable stone bands, ranges in thickness from 5-10 m|organic rich sedimentary rock|||N||17-JAN-23
Cloyne Limestone Member|78671|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Rothlyn Formation|24479|||Lower Devonian||||deposition|Lower Devonian||||||150||No|49690||||||Unrelated to Miocene Cloyne Member of Bunyan Formation, used 1986, 1990. Age from parent unit (Rothlyn Formation) and stratigraphic relations.|Pale, buff-grey, banded limestone and coarsely crystalline marble.|carbonate sedimentary rock|metasedimentary carbonate rock||N||17-JAN-23
Cloyne Member|29203|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bunyan Formation|3053|||Miocene||||deposition|Miocene||||||||No|40664||Henderson G.A.M.|02-AUG-85|||An unrelated Silurian Cloyne Limestone Member of Rothlyn Formation appears in BMR Record 1990/35, p11-12.|interbedded clay, sands and gravels|siliciclastic sedimentary rock|||N||17-JAN-23
Clwydd Sandstone Member|27127|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Caley Formation|28198|||Triassic||||deposition|Triassic|||||||NSW|No|43360|34205||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Clyde Coal|77275|Clyde Coal Measures|4200|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Talaterang Group|28268|||Cisuralian||||deposition|Cisuralian||||||||No|||Greenfield, J. (GSNSW)|05-MAY-11|||Used in GSNSW seamless Geology datasets.|Interbeded grey to dark-grey carbonaceous (and micaceous) siltstone and shale with fine- to medium-grained grey lithic sandstone; coal with bright hard bands and sporadic carbonaceous streaks|organic rich sedimentary rock|siliciclastic sedimentary rock||N||02-SEP-23
Coal Cliff Sandstone|27370|Coal Cliff sandstone|4206|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Late Permian||||||||No|34009||||||Lith desc updated from GSNSW seamless geology 2023.|Medium-grained quartz-lithic sandstone with calcareous-cement; also contains sideritic oolites.|siliciclastic sedimentary rock|||N||02-SEP-23
Coan Granite|25849|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lochkovian||||intrusion|Lochkovian|||||||NSW|No|34449|41126||||||Micrographic and coarse biotite granite, graphic biotite monzogranite; S-type|acid intrusive rock|||Y||17-JAN-23
Coando Volcanics|26259|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Pragian|409|7||eruption|Lochkovian||||||300|NSW|No|37772|41126|E.Scheibner|23-JUL-80|||Age updated form GSNSW seamless geology 2023.|Upward-fining pyroclastic mass flow deposits, with coarse pebbly bases and lithic-ash tops, showing cross bedding, slumping, and other sedimentary features. Commonly welded.|igneous volcanic rock|||N||08-SEP-23
Coastal Granite Association|82390|||||Yes|Association|Informal|Other new published name|Briefly described|||||Triassic|212||inferred||Triassic|240||inferred|||||No|||||||Granites < 240 Ma that occur along and to the east of the Demon Fault are delineated part of the Coastal Granite Association. Used in 2017, and many previous papers. Not used in GSNSW seamless geology dataset 2021 (which uses Costal Association Granites instead).|Granites.||||Y||17-JAN-23
Coates Creek Ignimbrite Member|77050|Coates Creek Member|29508|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Dulladerry Volcanics|29509|||Middle Devonian||||intrusion|Middle Devonian||||||||No|70297||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW July 2012.|Maroon, flow banded rheomorphic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Cobar Supergroup|27673|Cobar Group|4228|||Yes|Supergroup|Formal|Variation of published name|Redefined|||||Pragian|||||Pridoli|||biozone|||7000|NSW|No|46900|41528|||||Supersedes the "Cobar Series", "Cobar Group", and Cobar Super-Group. In the Cobar Basin. Min age from Queen Bee Porphyry, within Chesney Formation. A distinct hiatus occurs between the lower and upper parts of this supergroup to the east of the Cobar Basin.|Contorted quartzite, sandstone, phyllite and slate. Metasedimentary rock sequences of deep-water turbidites (Amphitheatre Group) and shelf facies (Winduck, Kopyje Groups), and sandstone-dominated Nurri Group. Typically non-magnetic.|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||04-AUG-23
Cobargo Granodiorite|21510|Cobargo Granite|4249|||Yes|Formation, beds|Formal|Resvd name published|Described|||Cobargo Suite|31492|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Lewis P.|21-DEC-90|||Accidently published as Cobargo Granite in Chappell et al (1991).|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Cobargo Suite|31492|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Cobargo Supersuite|4250|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite, granodiorite, diorite|acid intrusive rock|||Y||17-JAN-23
Cobargo Supersuite|4250|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|42827|||||||Felsic Intrusives|acid intrusive rock|||Y||17-JAN-23
Cobbannah Group|32459|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Wenlock|430||inferred||Llandovery|440||inferred|||3850||No|44187||VandenBerg, A.H.M.|23-MAR-07|||Warburton 1:250 000 sheet area. Used on May 1997 map.|Deep marine; quartzite and minor siltstone; no fossils; sandstone, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cobbitty Claystone Bed|4257|||||Yes|Bed|Formal|Unknown or process pending|Defined|Bringelly Shale|2570|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|35690|35690||||||Claystone|fine grained siliciclastic rock|||N||17-JAN-23
Cobblers Creek Limestone|4260|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Waugoola Group|19623|||Llandovery||||deposition|Llandovery||||||44||No|35258|23214|||||Bathurst 1:250 000 sheet area.|Mainly comprises thinly bedded calcarenite to calcirudite and calcareous sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Cobbora Formation|77257|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|68004||||||The name Cobborah had been reserved (unit no. 21511) but not used.|Conglomerate, breccias, arkose sandstone, coaly siltstone, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cobbys Corner Member|83330|||||Yes|Member, phase|Formal|Other new published name|Described|Neds Beach Formation|82619|||Pleistocene|.08||||Pleistocene|.1|||||||No|73136||||||On Lord Howe Island.|Volcanic-rich eolianite unit [dune?].|sediment|||N||25-JUL-23
Cobcroft Microgranite|4266|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42659|||||||Microgranite|acid intrusive rock|||Y||17-JAN-23
Cobra Formation|27372|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Mount Fairy Group|26052|||Lochkovian|||inferred, overlying unit|deposition|Wenlock|||biozone|||500||No|34481||||||Previously of Taralga Group. Retained in a form close to original definition (Scheibner 1973) after Jongsma (1968). Age range: fossils suggest mid Wenlock - early Ludlow. Upper part of Cobra Formation (as mapped by Scheibner, 1973), now considered to be part of overlying Kerrawary Siltstone. Conglomeratic base of Cobra Formation (Scheibner 1973), now defined as separate unit, Shivering Conglomerate. Note: Cobra Formation as defined herein includes both Cobra Formation and Whipbird Creek Formation sections measured by Scheibner (1973; fig. 12).|Massive pyritic mudstone, medium bedded marl and thinly bedded-laminated siltstone and shale. Flaggy, fine grained siliceous sandstone; 1-5cm calcareous, fossiliferous bands in fine grained rock; minor limestone, limestone breccia, rhyolite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||05-SEP-23
Cockabutta Creek Sandstone Member|23494|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Glen Davis Formation|24610|||Late Permian||||deposition|Late Permian||||||10||No|42657||Yoo E.K.|23-FEB-93||||Quartz-lithic coarse-grained sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Cockatoo Point Limestone Member|40947|||||Yes|Member, phase|Formal|Other new published name|Defined|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||||No|50230||||||Part of the Murrumbidgee Group.|Blue-grey, massive, medium bedded, crinoidal limestone.|carbonate sedimentary rock|||N||17-JAN-23
Cockburn Formation|4279|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Sandon Association|67995|||Carboniferous||||deposition|Devonian||||||||No|38194||||||||siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Cocketgedong Member|80115|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Urana Formation|18976|||Cisuralian|||||Cisuralian||||||||No|69798|||||||||||N||17-JAN-23
Cockle Creek Conglomerate Member|4281|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Bogey Hole Formation|2087|||Lopingian||||deposition|Lopingian||||||||No|43447||||||This Member was dropped. Formerly of Bogey Hole Formation, Lambton Subgroup, Newcastle Coal Measures. These rocks were included in Lambton Formation until Bogey Hole Formation reinstated ~2015.Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Coco Range Sandstone|21515|Coco Range beds|4289|||Yes|Formation, beds|Formal|Defined variation of published name|Defined|Mulga Downs Group|26063|||Eifelian||||deposition|Emsian||||||1320|NSW|Yes|22730|22730|Ward et al 1969, Neef G., Bottrill R.S., Ritchie A.|01-AUG-94|NSW SNSC|06-JUN-94|Variation of name published long ago, but Defn card is for Sandstone.  Upgrading of Coco Range beds of Ward et al (1969). See also the misspelt Coco Range Formation.|Fine arenite with fish fossils.|siliciclastic sedimentary rock|||N||17-JAN-23
Cocomingla Complex|40952|Cocomingla Gabbro|4291|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Pridoli||||intrusion|Ludlow||||||||No|50231||||||Part of the Wyangala Batholith.|Grey-green, medium- coarse-gr., porphyritic hornblende-pyroxene gabbro + quartz monzograbbro; grey, fine- to medium-gr, equigranular, quartz monzodiorite; greenish-grey, fine- to med.-gr., porphyritic, quartz monzonite. Low K and Th radioelement response|intermediate intrusive rock|||Y||17-JAN-23
Cocoparra Group|4293|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Eifelian||||deposition|Emsian||||||5800||No|71364||||||For detailed geophysics of this group - see RefID: 61964 ( p228-229).|Quartz-rich and lesser lithic sandstone, pebbly sandstone, conglomerate, siltstone, grit; mainly fluvial sequence.|siliciclastic sedimentary rock|||N||17-JAN-23
Coeypolly Conglomerate Member|70478|Porphyry Boulder Horizon|70479|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Currabubula Formation|5055|||Pennsylvanian|||inferred|deposition|Pennsylvanian|||inferred|||||No|62095||||||Of Voisey and Williams (1964). Also referred to as Coeypolly Conglomerate (McKelvey and McPhie 1964). Roberts et al (2006) found rocks impossible to recognise as a discrete, mappable unit at Formation level. Considered obsolete in 2006? But now (2010) recognised as a Member of Currabubula Formation. Used in GSNSW seamless geology dataset 2021. See also various 'Coepolly' misspellings.|Boulder conglomerate in basal region of Currabubula Formation.|siliciclastic sedimentary rock|||N||17-JAN-23
Coffs Harbour Association|38341|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Carboniferous||||deposition|Carboniferous||||||||No|61003||||||Of Korsch (1977).  Not a formal stratigraphic name, but retained on advice from GSNSW (April 2010).  Relationship to the Coffs Harbour beds is unclear, but they are possibly not exactly the same unit.|Undifferentiated metasediments and contact metamorphosed metasediments: massive grey metaclaystone, foliated metasiltstone, fine-grained lithic sandstone, medium-grained lithic wacke; minor conglomerate quartz-magnetite rock and chert|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Coffs Harbour beds|4301|Coffs Harbour Beds|28145|||Yes|Formation, beds|Informal|Variation of published name|Described|Coffs Harbour Association|38341|||Pennsylvanian|||||Pennsylvanian||||||||No|43852||||||Relationship to the later described Coffs Harbour Association is not clear.  Possibly not the same unit (eg, Grafton-Maclean preliminary map suggested that the beds were part of the Association).  Grafton-Maclean metallogenic map (1st edition) did not use Coffs Harbour beds.|||||N||17-JAN-23
Coggan Coal|24857|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|42657|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Cohens Gully Ignimbrite Member|70480|Cohens Gully|41450|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian||||||70||No|62095|62095|||||Age is probably Westphalian. In the Werrie block/Tamworth Belt.  See also the abbreviated version, Cohens Gully Member.|Unwelded pink, green or red ignimbrite; distinguishable by its abundant biotite. Paler pink to green in colour compared with underlying ignimbrite.|acid volcanic rock|||N||17-JAN-23
Coila Basalt|25851|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Oligocene|28.7||isotopic, K/Ar|eruption|Oligocene|35||isotopic, K/Ar|||31|NSW|No|29746|29746||||||Basalt|basic volcanic rock|||N||27-APR-23
Colinton Volcanics|4334|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Bredbo Group|21321|||Late Silurian|||inferred, overlying unit|magmatic crystallisation|Late Silurian|425.1|3.2|isotopic, U/Pb-Pb/Pb ion probe|||4000|NSW|Yes|12185|42820|||||Also defined and thickness stated as 700m in Bega-Mallacoota Explan Notes. Ngunawal Basin. Includes part of  the former "Bransby Beds" of Richardson (1979). Unclear where stratigraphically the dated samples came from. Change in numerical age boundary for Silurian/Devonian Periods since 1995 has changed the age of this unit from late Silurian to Early Devonian; but after Ogg et al. (2008) its maximum is back in the Silurian! Equivalent to, but not yet formally included in, the Douro Group.|Rhyolitic to rhyodacitic crystal and lithic tuff, minor siltstone, sandstone, and limestone lenses; dacite, andesite, rhyolite, tuff, limestone|acid volcanic rock|||N||17-JAN-23
Collett Monzogranite Phase|82381|Collett Monzogranite|82380|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Sheep Station Creek Complex|28997|Cisuralian|||||Cisuralian||||||||No|||||||used in GS NSW seamless geology dataset 2021.|Light grey, weakly porphyritic, medium- to fine-grained, biotite (+/-hornblende) monzogranite.|acid intrusive rock|||Y|I-type|01-SEP-23
Collingullie Granite|23496|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Collingullie Suite|31562|Lower Devonian|415.4|2||intrusion|Wenlock|415.4|2|isotopic, U/Pb|||||No|42726||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.|Felsic, S-type, unfractionated, feldspar-phyric, biotite granite|acid intrusive rock|||Y||22-AUG-23
Collingullie Suite|31562|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Ludlow||||intrusion|Wenlock||||||||No|42726||||||This name may be obsolete. Not used by GSNSW in 2013.|Granite|acid intrusive rock|||Y||17-JAN-23
Collinswood Granite|26486|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Collygra Coal Member|79332|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||1|3|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|10-FEB-16|||Proposed publication: AJES.||organic rich sedimentary rock|||N||17-JAN-23
Colo Vale Sandstone|4362|Colo Vale Formation|4361|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Clifton Subgroup|4163|||Late Permian||||deposition|Late Permian||||||180||No|31297||||||Lith desc updated from GSNSW seamless geology 2023.|Quartz-lithic sandstone, polymictic conglomeratic (with clasts of cherts) down sequence, and minor interbedded grey and red mudstone.|siliciclastic sedimentary rock|||N||02-SEP-23
Colong Limestone|4365|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40398||||||After Colong Caves limestone of McElroy (1959) and Colong limestone of Wynn (1963). Name not currently used by GSNSW [2013].|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Colraine Mudstone|4374|Colraine Limestone|4373|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Manning Group|11186|||Cisuralian||||deposition|Cisuralian||||||900||No|43385|||||||Friable, grey to black siltstone, rare calcareous sandstone, limestone|fine grained siliciclastic rock|||N||17-JAN-23
Columba Granite|4375|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Arthursleigh Suite|31547|Devonian||||intrusion|Devonian||||||||No|34481||||||Stated to be in Columba Suite by one source and in Arthursleigh Suite on GOULBURN 1:250K map (2008) - needs clarification. Has latter replaced Columba Suite?|Pale pink to reddish fine- to medium-grained, equigranular to porphyritic, leucocratic granite with traces of biotite and muscovite, and micrographic quartz and K-feldspar. Locally but by cataclasite veins.|acid intrusive rock|||Y|I-type|17-JAN-23
Columba Suite|31561|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Oberon Supersuite|31533|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||To be used on the new GOULBURN 1:250 000 sheet (2006) as part of the Oberon Supersuite.|Granite|acid intrusive rock|||Y||17-JAN-23
Comarto Basalt|73422|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Tournaisian||||eruption|Miaolingian||||||||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||To be used on the Koonenberry 1:500 000 map sheet. Age poorly constrained. GSNSW seamless geology 2023 shows age range as Mindyallan to Tournasian (mid-Cambrian to early Carboniferous)|Nested subalkaline basaltic vents with tholeiitic to calc-alkaline character with porphyritic, ophitic and pyroclastic textures preserved.|basic volcanic rock|||N||30-SEP-23
Combaning Formation|21522|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Derriwong Group|5403|||Lochkovian||||deposition|Ludlow||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Probably equivalent to the Derriwong Group and Trundle Group.|Siltstone, sandstone, shale, conglomerate, minor felsic volcanic rocks|siliciclastic sedimentary rock|||N||18-AUG-23
Comboyne Basalt|4387|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Miocene||||eruption|Middle Miocene||||||||No|29990||||||In the Kempsey area.|Flows of alkaline intergranular olivine basalt, ankaramite and tholeiitic basalt, with occasional sediment interbeds, dolerite, teschenite, trachyte and microsyenite|basic volcanic rock|||N||17-JAN-23
Comboyne Volcanics|83471|Comboyne Province Volcanics|69664|||Yes|Formation, beds|Formal|Other new published name|Described||||||||||||||||||No||||||||Contains fine-grained flow-banded trachyte and comendite comprised of sequidimensional feldspar, quartz, aegirine and riebeckite/arfvedsonite and coarse-grained anorthoclase-rich trachyitic and comenditic volcanic plugs.||||N||17-JAN-23
Come By Chance Formation|69665|Come-By-Chance Formation|4389|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Piacenzian||||deposition|Zanclean||||||19||No|61155|||||||||||N||17-JAN-23
Comerong Volcanics|25853|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Frasnian||||eruption|Givetian||||||300|NSW|No|12185|40276|||||Also defined in Bega-Mallacoota 1:250000 Geological Sheet SJ/55-4, SJ/55-8: Explanatory Notes (1994). Age: 372-376 Ma. Either includes or overlies the Nettletons Creek fish horizon.|Alkali rhyolite, mainly ignimbrites with minor lavas and quartz felspar porphyry, agglomerate; epidotised amygdaloidal basalt, conglomerate.|acid volcanic rock|basic volcanic rock||N|A-type|17-JAN-23
Comiala Shale Member|27131|Comiala Shale|4396|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Purlawaugh Formation|15676|||Middle Jurassic||||deposition|Middle Jurassic|||||||NSW|No|30610|30610||||||Shale|fine grained siliciclastic rock|||N||17-JAN-23
Commong Formation|34399|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Permian||||deposition|Permian||||||||No|22736||||||See also Commong Beds. Lithology description from GSNSW seamless geology 2023.|Mudstone, siltstone, sandstone and limestone.|siliciclastic sedimentary rock||extensional continental backarc|N||28-SEP-23
Compton Downs Granite|4403|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Tarcoon Suite|77133|Lower Devonian|416.4|2.53|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Late Silurian|||||||NSW|No|34449|71345|||||See also the informal Compton Downs granite.|Granodiorite with local pegmatite and variably altered.|acid intrusive rock|||Y|I-type|10-SEP-23
Condadilly Formation|4414|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Permian||||deposition|Cisuralian||||||||No|43409|43409||||||Permian shale & thin sstn bands with Glossopteris.|fine grained siliciclastic rock|||N||17-JAN-23
Condamine beds|4417|Condamine Beds|4415|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Late Permian||||deposition|Cisuralian||||||||No|39071|||||||Mudstone, acid tuff, sandstone, conglomerate.|fine grained siliciclastic rock|acid volcanic rock|continental margin arc|N||17-JAN-23
Condong Gabbro|4423|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42726|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Condor Granite|4424|||||Yes|Formation, beds|Formal|Other new published name|Described|||Condor Suite|31566|Lower Devonian||||intrusion|Pridoli||||||||No|29992||||||See also Condor Granodiorite, which replaced this name for some years. Used in GSNSW seamless geology dataset 2021.|Hornblende-biotite granite.|acid intrusive rock|||Y||24-JUL-23
Condor Suite|31566|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Confreys Formation|74202|Confreys Shale Member|4432|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||||No|61964||||||Supersedes "Confreys Shale Member" (of "Womboyne Conglomerate") now upgraded to formation status within Cocoparra Group.|Interbedded fine-grained, light red and white sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Conger Formation|4433|Carsonville Formation""|41388|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Tournaisian||||||1070||No|43432|44244||||||Grey to brown, fine- to coarse-grained lithic arenite beds up to 6m thick; interbedded lenticular boulder conglomerate, mudstone and thin andesitic to rhyodacitic ignimbrites|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Congi Creek Monzogranite Phase|82377|Congi Creek Monzogranite|41054|||Yes|Member, phase|Formal|Variation of published name|Described|||Walcha Road Monzogranite|41073|Lower Triassic|||inferred||Late Permian|250.6|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628|||||||Light grey, fine- to medium-grained, equigranular to very sparsely porphyritic, felsic biotite monzogranite (plagioclase-rich) to granodiorite, with sparse K-feldspar megacrysts and hornblende.|acid intrusive rock|||Y|I-type|21-AUG-23
Conjola Subgroup|4444|Conjola Formation|27374|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Shoalhaven Group|16844|||Permian||||deposition|Cisuralian||||||||No|37092||||||See also Conjola Formation.|Quartz sandstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Conlea porphyry|79102|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||magmatic crystallisation|Lower Devonian|398|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|69635||||||Informal name. Southern Thomson Orogen.  U-Pb SHRIMP zircon magmatic crystallisation age. Sample from 403.65-405.0 m in drillhole TFB002A (Meridian Minerals Limited). Shown as Conlea Porphyry p2.|Grey, intermediate porphyry with disseminated pyrite. Gradational contact zones approximately two metres thick both above and below, passing into a pink granite phase.|intermediate volcanic rock|||Y||17-JAN-23
Connell Member|79189|||||Yes|Member, phase|Formal|Variation of published name|Defined|Glen Bower Formation|28309|||Wenlock|||inferred, geological correlation|deposition|Wenlock|||inferred, geological correlation|||350|NSW|No|68592||||||Name first published by Moignard (1970). Described by Cramsie et al. (1978).|Medium- to coarse-grained quartzose sandstones, mudstones and thinly-bedded, very fine-grained sandstones with interbedded carbonates including lensoidal boundstone mounds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||06-SEP-23
Connemarra Formation|21532|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Trundle Group|29079|||Lochkovian||||deposition|Lochkovian||||||1350||No|43441||Sherwin L.|21-APR-94|||Narromine 1:250 000 sheet, 8432-II.|Siltstone, mudstone and marl; limestone lenses. Contains brachiopods, conodonts.|siliciclastic sedimentary rock|||N||11-SEP-23
Connolly Volcanics|4452|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Silverwood Group|16903|||Emsian|||inferred, biostratigraphic correlation|eruption|Late Silurian||||||2430||No|32492||||||Redefined by Kenrick van Noord in his 1999 QUT PhD. To be published in QGMJ.|Intermediate to basic volcanics, sandstone, conglomerate, limestone.|intermediate volcanic rock||island arc|N||17-JAN-23
Cooba Monzonite|80946|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Llandovery|438.2|2|isotopic, U/Pb-Pb/Pb ion probe||Llandovery|438.2|2||||||No|||Eastlake, M. (GSNSW)|19-MAR-19|||Poorly exposed on the Junee (8428) 1:100 000 map sheet area. Displays medium-grained equigranular texture with varying degrees of propylitic (epidote-chlorite) alteration. SHRIMP date is derived from Bodorkos et al (in prep). Wheretobepublished = Detailed geological descriptions published in GSNSW reports GS2017/0147 and GS2018/0255. Also to be published via GSNSW Stratigraphic Unit Table database. Used in GSNSW seamless geology dataset 2021, 2023.|Medium-grained, equigranular, amphibole-bearing monzonite with euhedral plagioclase enveloped by interstitial K-feldspar. Poorly exposed.|intermediate intrusive rock|||Y||03-SEP-23
Coocoran Claystone Member|4471|Coocoran Claystone|4472|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Griman Creek Formation|7826|||Albian||||deposition|Albian|||||0|3.6||No|42346|||||||Fine-grained pale kaolinitic claystone, often silicified to porcelanite.|siliciclastic sedimentary rock|||N||17-JAN-23
Coodravale Granodiorite|23503|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Silurian||||intrusion|Late Silurian|||||||NSW|No|36441|45147|D.Wyborn|23-FEB-77||||Granodiorite, monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Coogal Subgroup|30031|Coogal|21538|||Yes|Subgroup|Formal|Resvd name published|Briefly described|Black Jack Group|1798|||Late Permian||||deposition|Late Permian||||deposition||||No|43194||||||Used in GSNSW seamless geology dataset 2021.|Quartzose sandstone, siltstone, claystone, coal, carbonaceous siltstone, minor quartzose conglomerate and minor tuff|siliciclastic sedimentary rock|organic rich sedimentary rock||N||27-APR-23
Cooinbil Limestone|4489|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Llandovery||||deposition|Llandovery||||||||No|40328||||||Name not currently used by GSNSW [2013]. Probably obsolete.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Cookaburragong Granodiorite|33193|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Koetong Suite|9703|Llandovery|432|3.1|isotopic, U/Pb|intrusion|Llandovery|432|3.1|isotopic, U/Pb|||||No|24417||Scott M.|10-NOV-98|||Forbes 1:250 000 sheet area (03/32987).  Intrudes Humbug Sandstone (Wagga Group).  The former Ungarie Suite of Chappell et al (1991) replaced by Koetong Suite (of the Koetong Supersuite).|Grey, medium-grained porphyritic biotite granodiorite, with metasedimentary xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Cookamidgera Subgroup|4495|Cookamidgera Sub-Group|4494|||Yes|Subgroup|Formal|Variation of published name|Defined|Hervey Group|25947|||Famennian|||||Upper Devonian||||||500|NSW|No|43507|43507|||||Defined 1965. Name discontinued on BATHURST 1:250 000 explan. notes (1998), however still used on FORBES (1999)  and GOULBURN  (2008) 1:250 000 sheets. See also Cookamidgera Formation used on BATHURST  1:250 000 sheet.|Red siltstone and sandstone.||||N||20-JUL-23
Cookbundoon Formation|40938|Cookbundoon Sandstone|28467|||Yes|Formation, beds|Formal|Variation of published name|Defined|Lambie Group|10103|||Lower Devonian||||deposition|Lower Devonian||||||||No|50234||||||Now includes some of the old Wiarborough Formation, although most of the Wiarborough Formation is now included in Cowpers Creek Conglomerate (Goulburn 1:250000 Explanatory Notes (Thomas & Pogson 2012)).|White to grey,thick-bedded, medium-grained to granule quartzite and quartzose sandstone, occasionally pebbly.  Lenses of polymict conglomerate at base.  Rare lithic-quartz sandstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cookeys Plains Formation|24223|Bogan Gate Sandstone Group""|77672|||Yes|Formation, beds|Formal|Resvd name published|Defined|Derriwong Group|5403|||Lochkovian||||deposition|Ludlow|||||1200|1600|NSW|Yes|36066|39660|L.Sherwin|02-AUG-79|NSW SNSC|18-APR-80|Definition 03-MAR-1980.|Shale, siltstone and fine-grained arenite; limestone, coarse to medium-grained arenite; contains conodonts, corals, trilobites, brachiopods.|siliciclastic sedimentary rock|||N||17-JAN-23
Cookman Formation|4499|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crudine Group|4970|||Lochkovian||||deposition|Lochkovian||||||800|NSW|No|43384|43517|||||In Bathurst 1:250 000 sheet area.|Interbedded cream to dark grey fine to medium grained quartz rich sandstone, siltstone, laminated shale and minor dark to black cherty tuff.|siliciclastic sedimentary rock|||N||17-JAN-23
Cookopie Monzonite|24224|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Devonian||||intrusion|Silurian|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82||Hornblende monzonite.|intermediate intrusive rock|||Y||17-JAN-23
Cooks Vale Granite|33801|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Tumboramboro Suite|69874|Emsian||||intrusion|Emsian||||||||No|50233||Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wologorong Batholith.|Leucocratic, coarse grained, muscovite-biotite granite, extensively recrystallised; medium-high K, low Th, low-high U response; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Coolabah Monzodiorite|81172|||||Yes|Formation, beds|Formal|Other new published name|Defined||||||||||Lower Devonian|||inferred, structural relationship|intrusion|||NSW|No|72296||||||New name, after the village of Coolabah. A type locality is designated at Lat -31.2425 degrees Long 146.9159 degrees, ~150m N of the Okeh and Murrawombie road junction.|Massive, coarse-grained porphyritic monzodiorite dykes, with large labradorite crystals within a groundmass of augite, plagioclase, alkali feldspar and quartz.|intermediate intrusive rock|||Y||17-JAN-23
Coolac Serpentinite|4506|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Late Silurian|392|14|||Early Silurian|409|11|||||NSW|No|29454|42313|||||See also Coolac Ophiolite Suite. See also Honeysuckle Metabasic Igneous Complex. Geological Province: Tasman Fold Belt.|Serpentinite; partly serpentinised harzburgite and wehrlite; very minor chromitite, rodingite dykes|metamorphosed ultramafic rock|||N||17-JAN-23
Coolagolite Granodiorite|24606|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Cobargo Suite|31492|Lower Devonian||||intrusion|Lower Devonian||||||||No|40776||B.W.Chappell|09-OCT-75|||See also the informal Coolagolite Granite.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||10-SEP-23
Coolamine Igneous Complex|25856|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Coolamine Suite|31468|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|29456|45147|Owen M., Wyborn D.||Hawke, J.|08-DEC-76|Part of the Boggy Plains Supersuite.|Granodiorite, quartz monzodiorite, quartz monzogabbro, quartz gabbro, minor monzogranite and tonalite|acid intrusive rock|basic intrusive rock||Y||17-JAN-23
Coolamine Suite|31468|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Boggy Plain Supersuite|2092|Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Used in GSNSW seamless geology 2023.|Granite|acid intrusive rock|||Y||10-SEP-23
Coolangatta Latite Member|37353|||||Yes|Member, phase|Formal|Resvd name published|Described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian|||||30|40||No|71542||Jones B.|15-NOV-01|||Type section 56/291300E, 6141500N. A new member within the Broughton Formation, southern Sydney Basin. It forms part of the Gerringong Volcanic facies. Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Dark grey, trachytic porphyritic (feldspar-phyric) latite extrusion in a fine-grained groundmass.|intermediate volcanic rock|||N||17-JAN-23
Coolangubra Monzogranite|76978|Coolangubra Adamellite|21543|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Coolangubra Suite|31461|Lower Devonian||||intrusion|Lower Devonian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Biotite monzogranite.|acid intrusive rock|||Y|I-type|26-SEP-23
Coolangubra Suite|31461|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite, adamellite, granodiorite|acid intrusive rock|||Y||17-JAN-23
Cooleman Limestone|25857|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cooleman Plains Group|4528|||Pridoli||||deposition|Ludlow||||||650|NSW|No|39800|45147||||||Massive to well-bedded limestone, commonly strongly recrystallised|carbonate sedimentary rock|||N||17-JAN-23
Cooleman Mountains Granodiorite|4526|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39409|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Cooleman Plains Group|4528|Cooleman Group|4525|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Late Silurian|||||Late Silurian||||||||No|36441|||||||||||N||17-JAN-23
Coolringdon beds|24868|Coolringdon Beds|4560|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Upper Ordovician|||||Upper Ordovician||||||||No|35191||||||Incorperated into the adaminably beds?|||||N||17-JAN-23
Coolumbooka Granodiorite|21546|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Bombala Supersuite|77132|Lower Devonian||||intrusion|Late Silurian|396|||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Coolumbooka Granite in Chappell et al (1991). Rb/Sr Age: 396Ma.|Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Coolumbooka Suite|31565|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|42726|||||||Granite, granodiorite|acid intrusive rock|||Y||17-JAN-23
Cooma Creek Member|24869|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bunyan Formation|3053|||Miocene||||deposition|Miocene||||||||No|40664|||||||Coal, clay sand, gravel|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Cooma Granodiorite|4571|Cooma Granite|4570|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Cooma Suite|4573|Silurian|432.8|3.5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Silurian|433.4|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|33781||||||Age range: 385-400 Ma. See also RefID 67060 p505.|Biotite granite, foliated granite, leucogranite, diorite, tonalitic gneiss|acid intrusive rock|||Y|S-type|17-JAN-23
Cooma Metamorphic Complex|4572|Cooma metamorphic complex|4577|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Ordovician|||||Lower Ordovician||||||||No|31386||||||Metamorphosed Adaminaby Group rocks. Contains a core of heterogeneous diatexitic granite (Cooma suite). May be correlated with the Cambalong Complex.|Migmatites, minor amphibolites including Soho Street Amphibolite;Mica schist, biotite schist, andalusite-sillimanite bearing schist, orthoclase-cordierite knotted schists|metamorphic rock|||N||17-JAN-23
Cooma Suite|4573|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Cooma Supersuite|31495|Silurian||||intrusion|Silurian||||||||No|42110|||||||Granite, granodioroite.|acid intrusive rock|||Y||17-JAN-23
Cooma Supersuite|31495|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726|||||||S-type granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Coomaloo Ignimbrite Member|31842|||||Yes|Member, phase|Formal|Resvd name published|Described|Warrumba Volcanics|32474|||Middle Devonian||||eruption|Middle Devonian||||||||No|24417||Raymond, O.L.|15-OCT-97|||Grenfell 1:100 000 sheet area.|Ignimbrite|acid volcanic rock|||N||17-JAN-23
Coombadjha Formation|82391|Coombadjha Volcanic Complex|23506|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Wandsworth Volcanic Group|29113|||Lopingian|253.6||inferred, intrusive relationship||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Volcaniclastic sandstone, felsic porphyry, welded ignimbrite.|medium-coarse grained siliciclastic rock|acid volcanic rock||N||17-JAN-23
Coomber Formation|29939|Coomber|21548|||Yes|Formation, beds|Formal|Resvd name published|Defined|Cabonne Group|21409|||Llandovery||||deposition|Upper Ordovician||||||1750|NSW|Yes|43188|23170|Campbell J.C., Pemberton J. (1992)|10-NOV-80|Basden H., Fergusson C|16-NOV-95|Reservation renewed by Pemberton, U Wollongong 09-OCT-1992. Defn card supplied by C.L. Fergusson & G.P. Colquhoun. Rockley-Gulgong Volcanic Belt. Intruded by Pyangle Pass Granite. Ang unconformably overlain by L Carboniferous-E Permian Rylstone Volcanics & Permian Shoalhaven Group.|Mafic volcanic sandstone, dark siliceous mudstone, rare radiolarian chert and limestone blocks; basalt, dolerite, gabbro and diorite sills or lavas|siliciclastic sedimentary rock|||N||17-JAN-23
Coombing Formation|4594|Malongulli Formation""|11125|||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Upper Ordovician||||deposition|Middle Ordovician|467|4|isotopic, U/Pb-Pb/Pb ICP-MS|||3000|NSW|No|49794|22679|||||Molong-Wellington Volcanic Belt. Type Section: GR 700200 6273550 Age determined by palaeontological evidence, and from laser ablation ICP-MS U/Pb of detrital zircons.|Feldspathic mudstone which is commonly silicified and grades to fine-grained volcaniclastic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Coonambidgal Formation|4598|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Wunghnu Group|20670|||Holocene||||deposition|Pleistocene||||||8|NSW|No|70961|42966|||||Defined by Lawrence (1966) from type locality in NSW. Mostly restricted to major river trenches with lithology reflecting rocks through which the rivers flow (RedID: 60599). This name often used to include all the Quaternary alluvium in the Riverine Plains, but it is in fact a geomorphic unit and not primarily defined from its lithology. Age: <14 000 years BP. Radiocarbon date: 25 000 years BP. Said to have lapsed into disuse by GSV (VandenBerg, 2009). Maybe, but still used in SA (MESA, vol.66, 2012) and NSW.|Alluvial flood plain and fan deposits, channel sands and clay playettes; clay, silt, fine to coarse-grained sand, gravel. Nonmagnetic with dendritic, moderately magnetic responses (10-20 nT); low K, Th, and variable U (60597).|regolith|||N||17-JAN-23
Coonambro Volcanics|31716|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|24417||Wyborn D., Raymond O.|22-SEP-97|||Parkes 1997 prelim. 1:100k. Formerly considered part of Black Range Group.  Published in FORBES 1:250 000 Explan. Notes (03/32987).|Andesitic lavas, breccia, dacitic ignimbrite|acid volcanic rock|||N||17-JAN-23
Coonardoo Sandstone|21553|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Trundle Group|29079|||Frasnian||||deposition|Givetian||||||300||No|43441|22831|Sherwin L.|21-APR-94|||Formerly mapped in the Wallingalair Group, now redefined as Trundle Group. Used on NARROMINE 1:250 000 sheet, 8432-1, part of Wallingalair Group. QNote 96, 1994. Part of Trundle Group on FORBES 1:250 000 sheet [1999].|Medium to coarse arenite, pebbly to conglomeratic arenite; contains brachiopods, conodonts, fish plates.|siliciclastic sedimentary rock|||N||17-JAN-23
Coondella Creek Monzogranite|77004|Coondella Creek Adamellite|25860|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Fine leucogranite.|acid intrusive rock|||Y|I-type|29-SEP-23
Coonemia Complex|36363|||||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Middle Triassic|239|6|||Lopingian||||||||No|67663||||||One of several intrusive complexes in the southernmost Sydney Basin. NOT used in GSNSW seamless geology datasets 2021-2023, but discussed in GA alkaline rocks dataset report. Lith description and corrected age values from Carr (1984) who also incorporated the Currambene Dolerite (e.g., Ozmic, 1971) in this unit. Available dates are Mid-Triassic. Age range extended herein to include the possibility that these rocks overlap with the alkaline shoshonitic rocks of the Gerringong Volcanics. GSNSW seamless 2021-2023 uses Currambene Dolerite but not Coonemia Complex.|Basaltic to monzonite, differentiated laccolith and numerous small dykes and sills. Shoshonitic geochemistry, assumed alkaline(?) by correlation.||||Y||08-JUN-23
Coonigan Formation|4616|||||Yes|Formation, beds|Formal|Other new published name|Defined|Gnalta Group|7460|||Middle Cambrian||||deposition|Early Cambrian|||||113|115|NSW|Yes|43501||Kruse P.D.|01-AUG-06|NSW SNSC||See file 82/86 folios 209 and 195 re: approval.|Basal limestone and shale, overlain by fossiliferous limestones, and c.14 m of white micaceous shale at the top which contains a diverse trilobite fauna.|fine grained siliciclastic rock|carbonate sedimentary rock||N||11-SEP-23
Coonongooba Formation|4618|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Tatarian||||deposition|Tatarian||||||||No|45090|||||||||||N||17-JAN-23
Coopernook Conglomerate Member|76918|Coopernook Conglomerate|74042|||Yes|Member, phase|Formal|Resvd name published|Defined|Camden Head Claystone|3385|||Lower Triassic|||inferred, overlying unit|deposition|Lower Triassic|||||30|50|NSW|Yes|66090|66090|||||Lorne Basin. See published definition for figures and locations referred to in Unit Definition data.|Chert and quartz pebble conglomerate with subdominant sandstone and mudstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Coopers Creek Limestone|24873|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Jordan River Group|9028|||Emsian||||deposition|Pragian||||||||No|43530||||||Moe area, sheet 8121. See also Coopers Creek Formation, Coopers Creek Beds. Used as dimension stone in Victoria.|In Victoria, includes limestones and silty limestones, medium to dark grey in colour and partly consisting of comminuted fossil fragments. Deep marine deposits.|carbonate sedimentary rock|||N||06-SEP-23
Coorabakh Conglomerate|75739|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Camden Haven Group|28197|||Lower Triassic|||inferred, geological correlation|deposition|Lower Triassic|||inferred, geological correlation||30||NSW|Yes|66090|66090|Pratt, G.W.|19-DEC-07|Sherwin, L.|01-SEP-10|Map Sheet = NSW 9434, nearest Town = Comboyne. Published in GSNSW Quarterly Notes 134 (2010). Lorne Basin.|Chert and quartz, pebble and granule conglomerate with interbedded and subordinate sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Coorabin Coal Measures|4633|||||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Lopingian||||deposition|Cisuralian|||||20|80||No|44340|||||||Upward-fining sequence of conglomerate, sandstone, siltstone, mudstone, carbonaceous clay and coal.|organic rich sedimentary rock|||N||02-SEP-23
Cooreen mafic-ultramafic|82832|Cooreen Igneous Complex|77345|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Forms dykes and annular structures. Used in GSNSW seamless geology dataset 2023.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||Y||13-JUN-23
Coorikiana Sandstone|26493|Coorikiana Sandstone Member|4646|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Marree Subgroup|11374|||Albian||||deposition|Albian||||||20||No|33819||||||Formerly within the Neales River Group, now Rolling Downs Group. Formerly a member of the Oodnadatta Formation. Also, formerly named Attraction Hill Sandstone Member of the Marree Formation. Lateral to Toolebuc Formation and Allaru Mudstone; interfingers laterally with Mackunda Formation. Eromanga Basin.  Reference section in Dullingari 11.|Coarsening-upwards succession of greenish-white to grey, fine- to very fine-grained sandstone; glauconitic, bioturbated and broadly cross-bedded; sandy siltstone and minor siltstone interbeds; weathers buff to yellow.|siliciclastic sedimentary rock|||N||31-JUL-23
Coorongooba Creek Sandstone|25861|Coorongooba Creek Sandstone|25861|||Yes|Formation, beds|Formal|Variation of published name|Defined|Nile Subgroup|27092|||Late Permian||||deposition|Late Permian||||||19|NSW|No|43360|40806|||||Within the Ilawarra Coal Measures.|Medium-grained, quartz-lithic to lithic sandstone; thinly interbedded shale and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cootamundra Group|4654|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Lower Devonian|||||Lower Devonian||||||3250|NSW|No|35206|35070|||||Supersedes Cootamundra Volcanics?||siliciclastic sedimentary rock|acid volcanic rock|oceanic backarc|N||17-JAN-23
Cootamundra Group, Stockinbingal Formation, Bethungra Formation|42285|||||Yes|Supergroup|Informal|Variation of published name|Not recorded|||||Lower Devonian||||deposition|Lower Devonian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Rhyolite, rhyodacite, dacite; laminated siltstone; quartzose, quartz-lithic, tuffaceous and arkosic sandstones, shale, conglomerate|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Cootralantra Granodiorite|27134|Cootralantra granodiorite|4661|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Bullenbalong Suite|2895|Lower Devonian|418|2.7|isotopic, Rb/Sr|intrusion|Late Silurian|428.7|4.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33779|35109|||||Rb/Sr Ages: 421 Ma and 418+/-2.7 Ma. Within the Bullenbalong Supersuite. Previously of the Cootralantra Suite (now discontinued).|Biotite-rich granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Copeland Road Formation|4667|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Carboniferous||||deposition|Carboniferous||||||760||No|43447|44244||||||Lithic arenite interbedded with minor mudstone and siltstone; cross-bedded or massive arenite; black hard siltstone; rich brachiopod fauna.|siliciclastic sedimentary rock|||N||17-JAN-23
Copeland Road Formation, Faulkland Formation|79794|Copeland Road Formation, Faulkland Formation, Karuah Formation|42294|||Yes|Formation, beds|Informal|Variation of published name|Unpublished|||||Carboniferous|||||Carboniferous||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million basement geological map. Karuah Formation rocks now included in Mount Johnstone Formation.|Massive to crossbedded lithic sandstone; interbedded mudstone, arkose, magnetitiferous sandstone, keratophyre sills|siliciclastic sedimentary rock|||N||17-JAN-23
Copes Creek Andesite|34439|Copes Creek Keratophyre|4670|||Yes|Member, phase|Formal|Variation of published name|Described|Tamworth Group|17757|||Lochkovian||||eruption|Pridoli||||||300||No|22750||||||Loomberah District|Massive, green to grey keratophyre and quartz-keratophyre, minor brecciated or vesicular keratophyre.|intermediate volcanic rock|||N||17-JAN-23
Copeton Monzogranite|79315|Copeton Adamellite|23509|||Yes|Formation, beds|Formal|Variation of published name|Described|||Banalasta Suite|67897|Permian||||intrusion|Permian||||||||No|71628||Blevin, P. (GSNSW)|30-NOV-13|||IUGS standard name to replace adamellite. Also published in GSNSW seamless geology.|Porphyritic monzogranite with a coarse-grained groundmass, with white tabular very coarse-grained feldspar (orthoclase) phenocrysts, less than 10% biotite, sporadic cordierite is characteristic|acid intrusive rock|||Y|S-type|27-SEP-23
Copeton Suite|82398|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bundarra Supersuite|67901|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Included in Bundarra Supersuite in 2017, but not in GSNSW seamless geology dataset 2021.|Monzogranite and syenogranite.|acid intrusive rock|||Y|S-type|17-JAN-23
Copi Dam Arenite Member|34357|Copi Dam Sandstone Member|21558|||Yes|Member, phase|Formal|Resvd name published|Defined|Coco Range Sandstone|21515|||Eifelian||||deposition|Emsian||||||38|NSW|Yes|22730||Neef G., Bottrill R.S., Ritchie A.||NSW SNSC|06-JUN-94|Variation of reserved Copi Dam Sandstone Member, 1 of 5 sub-units of the Coco Range Sandstone of the Mulga Downs Group. See also Copi Dam Member and Copi Dam Pebbly Arenite Member, as well as the Copi Tank nomenclature which is probably superseded?|Medium to coarse pebbly sandstone, often with a basal lag of quartz pebbles and granules and shale or siltstone intraclasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Copper Creek Shale|4677|Copper Creek Beds|4676|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hoskinstown Group|8512|||Late Silurian|||inferred, biostratigraphic correlation|deposition|Late Silurian|||inferred, biostratigraphic correlation|||150|NSW|Yes|12185|42820||||||Dark grey shale and siltstone, arenite beds near base; minor limestone; contains corals.|siliciclastic sedimentary rock|||N||17-JAN-23
Copper Hill Suite|68844|Copper Hill Intrusive Complex|37468|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Bolindian|445||isotopic, U/Pb-Pb/Pb ion probe||Eastonian|456||isotopic, U/Pb-Pb/Pb ion probe|||||No|24518||||||Name refers to a widespread magmatic suite. Correlated with Cowal and Narromine Igneous Complexes. Crawford et al. (2007) imply that their Copper Hill Suite rocks are part of the Narromine Igneous Complex, but  GSNSW 2021 Seamless Geology has downgraded this unit to an informal, formation-rank rank unit: 'Unassigned Ordovician intrusions - copper hill intrusives', that is NOT part of the (probably older)Narromine Igneous Complex..|Dominantly of dacitic porphyries, with distinctive medium-K calc-alkaline compositions.|acid volcanic rock|||Y||21-FEB-23
Copper Mine Range Formation|37349|Copper Mine Range beds|34549|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Teltawongee Group|37348|||Middle Cambrian|||inferred, biostratigraphic correlation|deposition|Early Cambrian|||inferred, biostratigraphic correlation|||||No|66623|66623|Direen N.|29-DEC-98|||Defined in Direen's PhD. Redefined: formerly Copper Mine Range Beds (Pogson and Scheibner 1971) and beds (Scheibner and Basden 1998). Now included in Teltawongee Group. Contains sponge spicules; also glauconite-bearing dolomite beds in the northwest. About 1.5 km thick.|Wide variety of lithologies. Grey, dark green-grey and maroon mudstone and siltstone, sporadically laminated but generally massive bedding; quartzite and ? conglomerate. Local black carbonaceous shale and siltstone, individual beds to 5 m thick.|siliciclastic sedimentary rock|||N||17-JAN-23
Copperhannia Member|31721|Copperhannia Formation|24876|||Yes|Member, phase|Formal|Variation of published name|Defined|Cunningham Formation|5031|||Pragian||||deposition|Pragian||||||800||No|22679||||||BATHURST 1997 1:250 000 sheet area.  A limestone bearing unit at the base of Cunningham Formation.|Calcarenite, slate, limestone, marble, conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Coppermine Creek Volcanics|4690|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Ordovician||||eruption|Upper Ordovician||||||||No|34404||||||See also Copper Mine Creek Volcanics - unclear which form of the name is accepted?|||||N||17-JAN-23
Copplestone Member|40929|Copplestone Formation|4693|||Yes|Member, phase|Formal|Variation of published name|Defined|Glen Bower Formation|28309|||Wenlock|||inferred, biostratigraphic correlation|deposition|Wenlock|||inferred|||70|NSW|No|50230||||||First named by Moignard (1970) in an unpublished thesis. Within the Douro Group, but stated to be of the Yass Formation in 2003 and of the Ravenswood Formation (2008). Goulburn 1:250k notes and map [2012, 2013] now place this unit back in the Glen Bower Formation.|Laminated, algal limestone interbedded with mudstone and muddy limestone with sporadic carbonate nodules and lenses; coarse grained, quartz lithic sandstone; biohermal fossiliferous limestone and limestone breccia.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Coradgery Monzonite|24228|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Devonian||||intrusion|Middle Devonian|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|Definition by Bowman H., Richardson S., Dolanski J.||intermediate intrusive rock|||Y||17-JAN-23
Coramba beds|4698|Coramba Beds|25862|||Yes|Formation, beds|Informal|Variation of published name|Fully described|Coffs Harbour Association|38341|||Westphalian||||deposition|Tournaisian||||||||No|31695||||||See also Coramba Formation. Part of the "Coffs Harbour Association".|Lithofeldspathic wacke, minor siltstone, siliceous siltstone, mudstone, metabasalt, chert and jasper, rare calcareous siltstone and felsic volcanics|medium-coarse grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock|accretionary wedge|N||17-JAN-23
Corangula Formation|34755|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|22892|||||||||||N||17-JAN-23
Cordeaux Crinanite|4710|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Quaternary||||eruption|Cenozoic|26.2|3|isotopic|||||No|43346|43346||||||Melanocratic crinanite (olivine analcime dolerite), camptonite and teschenite|foid-bearing volcanic rock|||N||17-JAN-23
Cordillo Silcrete|4714|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Miocene|||||Oligocene||||||||No|38605|66623|||||Data from Strzelecki 1:250k explan notes (1995) suggest that this material could well be mainly late Tertiary [?Pliocene], not Oligocene-Miocene as suggested by Wopfner (1974), see . See also Cordillo Surface.|Variably siliceous, sheet-like bodies of silica-indurated sandstone and some conglomerate, now mainly comprising chalcedonic and locally opaline rocks; light grey to pale orange-brown.|regolith|||N||17-JAN-23
Coreen Creek Coal Member|4718|||||Yes|Member, phase|Formal|Other new published name|Defined|Loughmore Formation|27183|||Late Permian||||deposition|Late Permian|||||.5|7|NSW|Yes|35498|35498|Palese G.W.|11-NOV-75|NSW SNSC|20-JUN-76|Part of the Coorabin Coal Measures. Carbonaceous sandstone and mudstone. Max. thickness: 7m. Geological Province: Ovens Graben. See also Cooreen Creek Coal Member.|Carbonaceous sandstone and mudstone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Coreena Member|4721|||||Yes|Member, phase|Formal|Variation of published name|Defined|Wallumbilla Formation|19323|||Albian||||deposition|Aptian||||||165|QLD|No|44414|45110|||||In the Tibooburra area these rocks are included in the Oornoo beds.|Fine-grained calcareous labile and sub-labile sandstone, clayey sandstone, sandy siltstone; cone-in-cone structures and spheroidal calcareous concretions.Minor thin coal seams, coquinite|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Corella Ignimbrite|80571|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Gurragong Group|80567|||Lower Devonian|||||Late Silurian||||||||No|||Bull, K., Gilmore, P. (GSNSW)|30-JUL-18|||Includes informal 'lithic ignimbrite' from Cargelligo that has now been extended to the south. Lith desc updated from GSNSW seamless geology 2023.|Clast- and crystal-rich, variably welded volcaniclastic sandstone, interpreted to be lithic-rich ignimbrite.|acid volcanic rock|||N||04-SEP-23
Corner Limestone Member|4735|||||Yes|Member, phase|Formal|Other new published name|Defined|Ballingoole Limestone|28166|||Upper Ordovician||||deposition|Upper Ordovician||||||120|NSW|No|33063|33063||||||Typically massive limestone.|carbonate sedimentary rock|||N||17-JAN-23
Corona Dolomite|26498|Corona dolomite|4736|||Yes|Formation, beds|Formal|Variation of published name|Described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Cryogenian||||||||No|30261||||||Within the Torrowangee Group. Age: ~700Ma.|Massive, recrystallised, homogeneous, buff-coloured dolomite.|carbonate sedimentary rock|||N||28-AUG-23
Coronga Peak Quartzite|73368|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kopyje Group|28654|||Lower Devonian||||deposition|Late Silurian|471|12|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|70941||Burton, G.|22-MAY-07|||For use on map sheet 8136; nearest town is Byrock. To be published: 2008? Explan.Notes for Sussex abd Byrock 1:100K map sheets, GSNSW|Massive to less commonly laminated quartzite; white to pale grey, fine- to medium-grained (rarely coarser), quartzose variably recrystallised sandstone; rare pebbly beds|siliciclastic sedimentary rock|||N||17-JAN-23
Corradigbee Formation|78901|||||Yes|Formation, beds|Formal|Other new published name|Described|Hatchery Creek Group|78899|||Middle Devonian||||deposition|Lower Devonian||||||||No|67823||||||Hunt and Young (2010).|Sequence of grey-black siltstones and mudstones.|fine grained siliciclastic rock|||N||17-JAN-23
Corridgery Granite|36774|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Arthursleigh Suite|31547|Pragian||||intrusion|Pragian||||||||No|50234||Dennis Pogson - NSW Geological Survey|07-FEB-02|||GOULBURN 100K Sheet.  Part of the Marulan Batholith.|Pink and green, medium- to coarse-grained, massive, equigranular and porphyritic, biotite-hornblende granite. High to very high magnetic susceptibility.|acid intrusive rock|||Y|I-type|17-JAN-23
Corringle Formation|4751|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian||||deposition|Silurian||||||100|NSW|Yes|35503|35503|Kemezys K.J.||Hawke, J.|12-OCT-76||Greenish-brown sericitic quartz-feldspar rock with breccia texture. Probably tuffaceous breccia or paraconglomerate. Fragments about 1 cm average.|sedimentary rock|||N||17-JAN-23
Corrong metasedimentary rock|82712|Corrong metasediments|80445|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Interpreted from geophysics as turbiditic metasedimentary rocks.|metasedimentary rock|||N||03-SEP-23
Corryong Granite|4755|Corryong granite|4756|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Tom Groggin Suite|18286|Late Silurian|421|3|isotopic, K/Ar|intrusion|Early Silurian|321|3||||||No|60085||||||Of the Koetong Supersuite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G92|Nonmagnetic, grey, medium to very coarse grained, equigranular to strongly porphyritic in K-feldspar, two-mica-cordierite S-type granite; locally contains sillimanite or andalusite.|acid intrusive rock|||Y|S-type|17-JAN-23
Cottesbrook Monzogranite|38278|Cottesbrook Leucoadamellite|4775|||Yes|Formation, beds|Formal|Variation of published name|Described|||Wards Mistake Suite|67903|Late Permian|||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|253.4|1.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|23811||||||Probably replaces Cottesbrook Adamellite and Cottesbrook Leucoadamellite (DP JAN 04). GSNSW seamless geology 2023 shows Min age for this unit as 237.6+/-1.8 Ma, but the source of this date, and the event it is dating is unknown.|Texturally heterogeneous, grey, medium- to coarse-grained, equigranular to porphyritic monzogranite with minor quartz monzonite; xenoliths locally abundant.|acid intrusive rock|intermediate intrusive rock||Y|I-type|19-OCT-23
Cotton Formation|27752|Cotton Siltstone|4779|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Llandovery||||deposition|Upper Ordovician||||||1500|NSW|No|40891|46522|||||Previously named "Cotton Series" (Andrews, 1910) and "Cotton Beds" (Sherwin, 1973b) before being upgraded to formation status by Sherwin et al (1987).  Includes part of Mugincoble Chert. Structurally and conformably interfinger with Bushman and Nash Hill Volcanics.  Age: ca 443Ma.|Consists of fine-grained siltstone, with isolated calcareous horizons containing a shallow-water coralline assemblage. Lower part of unit has little or no sign of volcanic input.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock|island arc|N||17-JAN-23
Coturaundee Range Ultramafic|76148|Coturaundee Range Ultramafics|73398|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|||||Permian|||||Middle Devonian||||||||No|66623|66623|||||Formerly Cupala Creek kimberlitic sill (Bottrill and Neef 1998), Cupala Creek ultramafic sill (Stevens et al. 2000); defined in this study. Coturaundee Range. A phlogopite-rich sill, 1500 m long and up to 100 m thick, cut by dykes of darker grey basalt. Not brecciated, unlike diatremes, except for irregular and brecciated contacts with host sandstone.|Grey, phlogopite-rich rock, up to 20% pseudomorphs of serpentine after euhedral olivine; minor fine-grained secondary andradite; rare diopside; common accessory perovskite, sphene and apatite.|ultramafic intrusive rock|||N||17-JAN-23
Couragago Granodiorite|27265|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Young Suite|31669|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|36441|45147|D.Wyborn|24-SEP-76|||Of Young Batholith.  Intruded by Burrinjuck Adamellite.|Granodiorite, monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Covan Creek Formation|4789|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Fairy Group|26052|||Lochkovian|||inferred, overlying unit|deposition|Ludlow|||inferred, underlying unit|||1500|NSW|Yes|30730|30735|Felton E.A.||Bryan, J.H.|27-OCT-75|See also the informal Covan Creek formation.|Thin-thick bedded, very fine-very coarse grained, lithic quartz-quartzose sandstone with interbedded, laminated, siltstone and mudstone.Rare felsic volcanic rocks; sandstone typically contains fragments of dark chert and fine grained metasediments.|siliciclastic sedimentary rock|||N||17-JAN-23
Cow Flat Granite Porphyry|28479|Cow Flat Porphyry|4791|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|36441||||||Part of the Murrumbidgee Batholith. Intrudes Tidbinbilla Quartzite and Adaminaby Beds.|Leucocratic quartz feldspar porphyry|acid intrusive rock|||Y|S-type|17-JAN-23
Cowangara Formation|21568|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Devonian||||deposition|Famennian||||||||No|43755|22736|Roberts J.|06-SEP-93|||To be used in Hastings Terrane, Northern NSW. Interdigitates with Rollans Road Formation.|Cleaved, turbiditic, thinly to medium bedded grey to black laminated fine lithic sandstone, siltstone and slate with lenses of massive conglomerate.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Cowcumbala Rhyolite|27135|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Cootamundra Group|4654|||Lower Devonian||||eruption|Lower Devonian||||||1750|NSW|No|35206|22638||||||Massive and flow-banded, pink to purple rhyolitic to rhyodacitic lavas; minor pebble conglomerate, grit, minor siltstone, grey tuffaceous sandstone, and shale|acid volcanic rock|||N||17-JAN-23
Cowombat Siltstone|25864|Cowombat Formation|4803|||Yes|Formation, beds|Formal|Variation of published name|Defined|Enano Group|24268|||Pridoli||||deposition|Ludlow||||||800|VIC|No|33606|39447||||||Siltstone, sandstone, limestone, conglomerate: nonmagnetic cut by northeast, north and west-northwest weakly magnetic (10-20 nT) trends; moderate to high total count K, Th, low U|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cowpers Creek Conglomerate|74598|||||Yes|Formation, beds|Formal|Other new published name|Defined|Lambie Group|10103|||Devonian||||deposition|Devonian||||||||No|64238||||||Now includes most of the old Wiarborough Formation (Goulburn 1:250000 Explanatory Notes (Thomas & Pogson 2012)).|Poorly sorted, mostly thick bedded, matrix and clast supported, pebble-boulder, polymictic conglomerate and coarse grained, commonly pebbly, quartz lithic and lithic quartz sandstone; common large scale planar and trough cross bedding.|siliciclastic sedimentary rock|||N||11-SEP-23
Cowra Granodiorite|4811|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Cowra Suite|31569|Late Silurian||||intrusion|Late Silurian|428.5|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|43515||||||First published in 1950. Included in Young Granodiorite in 1973, but name used again in 1983. Originally included as part of the Young Granodiorite.  Intrudes the Avoca Valley Shale and Canowindra Volcanics.  Fully described. See also RefID 67060 p505.|Mafic garnet cordierite granodiorite, abundant enclaves|acid intrusive rock|||Y|S-type|17-JAN-23
Cowra Suite|31569|||||Yes|Group, Suite|Formal|Other new published name|Described|||Bullenbalong Supersuite|2897|Devonian|||||Silurian||||||||No|42726|||||||Granodiorite and granite. S-type.Characterised by scattered large garnets rimmed by cordierite.|acid intrusive rock|||Y|S-type|17-JAN-23
Cowridge Siltstone|4813|||||Yes|Formation, beds|Formal|Other new published name|Defined|Hattons Corner Group|8145|||Pridoli|||inferred, biostratigraphic correlation|deposition|Pridoli|||biozone||85|155|NSW|No|31852|68592|||||Formerly of the Barambogie Group, now included in the Hattons Corner Group.|Interbedded siltstone, fine-grained sandstone, mudstone. Also includes an upper and lower mudstone subunit.|siliciclastic sedimentary rock|||N||06-SEP-23
Cowriga Limestone Member|31722|Cowriga Limestone|24231|||Yes|Member, phase|Formal|Variation of published name|Fully described|Blayney Volcanics|29501|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|22679|22679|||||Bathurst 1997 1:250 000 sheet. Formerly part of Panuara Formation.|Foliated recrystallised grey limestone; corals.|carbonate sedimentary rock|||N||17-JAN-23
Coxs Coal Member|79333|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||1|4|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|10-FEB-16|||Proposed publication: AJES.||organic rich sedimentary rock|||N||17-JAN-23
Coxs River Gabbro|4822|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||See also Coxs River Granite.||basic intrusive rock|||Y||17-JAN-23
Coynallan Tonalite|37713|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Surveyors Creek Suite|37872|Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G579|Weakly to moderately magnetic, medium grained equigranular to coarse and porphyritic, I-type hornblende tonalite; massive to foliated; numerous round mafic enclaves to several metres across.|acid intrusive rock|||Y|I-type|17-JAN-23
Crack Hardy Point Monzodiorite|32254|Crack Hardy Point Quartz Monzodiorite|23517|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Boggy Plain Suite|2091|Lower Devonian||||intrusion|Lower Devonian||||||||No|60078||||||Lithology description from GSNSW seamless geology 2023.|Hornblende-biotite granodiorite, tonalite, quartz monzonite, diorite; sporadic amphibolite xenoliths.|intermediate intrusive rock|||Y||28-SEP-23
Cranbrook Formation|31294|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area. Not related to Cranebrook Formation.|||||N||17-JAN-23
Cranebrook Formation|4846|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Pleistocene|||||8|15|NSW|Yes|31056|42925|Gobert V.||Hawke, J.|27-AUG-77|Not related to Cranbrook Formation.|||||N||17-JAN-23
Cranky Corner Sandstone|4847|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Dalwood Group|28493|||Artinskian|281|2.2|isotopic, U/Pb-Pb/Pb ion probe|deposition|Sakmarian|||inferred, biostratigraphic correlation|magmatic crystallisation||70||No|32094||||||Age: 284.1+/-2.2Ma (SHRIMP).  Geological Province: Cranky Corner Basin.|Green massive fine to medium-grained, upwards coarsening fossiliferous sandstone, minor siltstone.|siliciclastic sedimentary rock|||N||02-SEP-23
Cranleigh Coal Member|21573|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Richards, G.W.|18-SEP-78|||Originally reserved for S.Butel. This name revived by GSNSW 14-JUN-2012. Used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, ash 15% (ad), splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Craven Subgroup|24888|Craven Coal Measures|4854|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Gloucester Coal Measures|7452|||Late Permian|||||Late Permian||||||980||No|40872||||||Includes the Wenham Formation, Wards River Conglomerate, Jilleon and Leloma Formations, Crowthers Road Conglomerate.  Supersedes Craven Coal Measures, Stratford Coal Measures,  Lower and Upper Craven Measures.|Boulder to pebble polymictic conglomerate (largely volcaniclastic clasts), medium- to coarse-grained lithic sandstone, laminated and massive mudstone and claystone, coal, sporadic claystone deposited as airfall tuff.|siliciclastic sedimentary rock||extensional continental backarc|N||02-SEP-23
Crawney Limestone Member|4869|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Yarrimie Formation|20896|||Givetian||||deposition|Givetian||||||116||No|43400|43400||||||Fossiliferous and recrystallised limestone and calcareous mudstone.|carbonate sedimentary rock|||N||17-JAN-23
Crescent Complex|4879|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Cenozoic||||intrusion|Cenozoic||||||||No|31806||||||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|Gabbro, diorite, minor granophyre, mafic and felsic dykes|basic intrusive rock|||N|I-type|17-JAN-23
Crescent Head Formation|69439|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Macleay Group|10958|||Permian||||deposition|Permian||||||||No|||Mark Dawson (NSWGS)|08-JUL-05|||Name reserved to formalise unnamed sediments at Crescent Head.  May or may not become part of the Macleay Group. Published in GSNSW seamless geology, as part of Macleay Group.|Massive sandstone, laminated sandstone, siltstone, and conglomerate|siliciclastic sedimentary rock|||N||27-SEP-23
Creswells Tank Granodiorite|70521|Tibooburra Granodiorite|18127|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tibooburra Suite|73401|Pridoli|427.7|2.3||intrusion|Ludlow|427.7|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66920|66623|Brown, R. (UNE/NSW MInerals)|01-JUN-06|||Used on map sheet 9239; nearest town is Tibooburra. Included in the newly reserved Tibooburra Suite [2007].|Massive, weakly porphyritic, leucocratic, medium-grained seriate granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Cretaceous intrusive complexes 76564|76564|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Cretaceous|92|||intrusion|Lower Cretaceous|100|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mixed felsic, mafic and/or alkaline intrusives; may include ultramafic rocks; includes alkaline rocks such as trachyte and syenite.|igneous intrusive rock|||Y||17-JAN-23
Cretaceous sedimentary rocks 76566|76566|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Cretaceous|97|||deposition|Lower Cretaceous|141|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Cringadale granite|80451|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glen Emu granite suite|80442|Silurian|||inferred||Silurian|||inferred|||||No|70718||||||Subsurface Balranald 1:250 k sheet area.|Interpreted as granite or granodiorite.|acid intrusive rock|||Y||17-JAN-23
Crinoidal Limestone Member|29283|Crinoidal Limestone|4903|||Yes|Member, phase|Formal|Variation of published name|Defined|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||||No|32483|||||||Massive crinoidal limestone with interbedded tuffaceous sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Croajingalong Granite|4910|Croajingalong Adamellite|4909|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Wallagaraugh Suite|25586|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Age updated from GSV data (HG, Dec 2005) GSV Code: G5.|Coarse grained, porphyritic I-type granite, with reddish biotite, pink K-feldspar|acid intrusive rock|||Y|I-type|17-JAN-23
Crooked Corner Suite|69868|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Devonian|||||Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2008). Previously included in Keverstone Supersuite, but not part of this Supersuite in GSNSW seamless geology 2021.|Biotite granites, aplitic granite, rhyolite intrusives and rhyolite dykes.|acid intrusive rock|acid volcanic rock||Y||17-JAN-23
Crookwell Basalt|35344|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Eocene||||eruption|Eocene||||||||No|50232||Johnston A.|15-MAR-00|||GUNNING 1:100 000 sheet area.|Fine grained, alkali olivine basalt and dolerite with minor trachyte and lithic welded ignimbrite.|basic volcanic rock|||N||17-JAN-23
Croppies Gunyah Ignimbrite Member|78645|Croppies Gunyah Rhyolite Member|77430|||Yes|Member, phase|Formal|Variation of published name|Defined|Long Flat Volcanics|10619|||Pragian||||magmatic crystallisation|Lochkovian|414|2.5|isotopic, U/Pb-Pb/Pb ion probe|||||No|69159|||||||Grey to white, medium-grained, moderately crystal-rich, densely-welded rhyolitic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Crossleys Tank Formation|23521|Gurrangully Formation|7929|||Yes|Formation, beds|Formal|Resvd name published|Defined|Rast Group|23935|||Emsian||||deposition|Pridoli||||||2500|NSW|No|41394|41394|G.MacRae|05-OCT-82|||Rift-fill sequence of quartz-rich sandstones - mostly unfossiliferous (apart from "Square Head Beds"). Within the Cobar Supergroup.|Monotonous sequence of quartz sandstone to sublithic or subarkosic sandstone interbedded with minor mudstone, slate, siltstone and rare conglomerate; unbioturbated.|siliciclastic sedimentary rock|||N||17-JAN-23
Crossleys Tank Formation, Preston Formation|42298|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Rast Group|23935|||Lochkovian||||deposition|Pridoli||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Quartz-rich, quartzofeldpsathic and lithic sandstone, with intercalated mudstone, slate, conglomerate and rhyolitic intrusions|siliciclastic sedimentary rock|||N||17-JAN-23
Croudace Bay Formation|4945|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boolaroo Subgroup|2220|||Lopingian||||deposition|Lopingian||||||||No|43447||||||This name was dropped [1999]. Of Boolaroo Subgroup. Included Belmont Conglomerate Member. Replaced in part by Boolaroo Formation. Apparently reinstated when Boolaroo Subgroup reinstated (2015): RefID 70647. Used in GSNSW seamless geology dataset 2021.|Conglomerate, sandstone, siltstone, claystone and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||02-SEP-23
Crow Mountain Creek beds|4948|Crow Mountain Creek Beds|4947|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||Visean|||||Upper Devonian||||||||No|32683|||||||||||N||17-JAN-23
Crow Valley Granite|4949|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||intrusion|Silurian||||||||No|12185|||||||Biotite granite.|acid intrusive rock|||Y||17-JAN-23
Crowl Creek Formation|23523|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mulga Downs Group|26063|||Mississippian||||deposition|Emsian||||||2235|NSW|No|37798|41821|R.A.Glen|01-AUG-81|||Use in Cobar area. See also Crowl Formation (probably misspelt as the place name is Crowl Creek).||medium-coarse grained siliciclastic rock|||N||17-JAN-23
Crowther Monzodiorite|29918|Bumbaldry Granite|2936|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gooramma Suite|70027|Emsian||||intrusion|Emsian||||||||No|43642||Raymond, O.L.|06-NOV-95|||BATHURST 1:250 000 sheet area. Intrudes the Warrangong and Canowindra Volcanics..  Previously included in Young Granodiorite by Brunker (1972) and Bowan (1976). Also included in "Bumbaldry Granite" of Chappell et al (1991).|Fine-medium grained, massive, equigranular-partly porphyritic augite quartz monzodiorite to biotite?-pyroxene-hornblende quartz monzonite to augite monzonite; high K and Th; high-very high magnetic susceptibility.|intermediate intrusive rock|||Y||17-JAN-23
Crowthers Road Conglomerate|4961|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Craven Subgroup|24888|||Permian||||deposition|Permian||||||15||No|37099||||||Gloucester Basin.|Massive polymictic boulder to pebble conglomerate, interbedded medium to coarse-grained lithic sandstone, and mudstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Cruaich Member|81959|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Shawns Creek Formation|81958|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Scoria crystal trachyte-lithic lapilli tuff, palagonite-altered ash matrix.|acid volcanic rock|||N||17-JAN-23
Crudine Group|4970|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Pragian||||deposition|Lochkovian||||||2700||No|43384|23170||||||Thin to thick bedded and massive, quartzose, feldspathic and crystal-lithic felsic volcaniclastic sandstones; dacitic to rhyolitic and andesitic lavas and volcaniclastics; slate, tuff, siltstone, conglomerate, phyllite, rare limestone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Cucum Granite|4973|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended. Of the probably obsolete Cootralantra Suite.||acid intrusive rock|||Y||17-JAN-23
Cudal Group|4974|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Ludlow|||||Llandovery||||||2000|NSW|No|43515|40328|||||Defining ref in 1999 from Dubbo 1:250 000 Notes. First referred to by map only as Cudal Shale.|Thick shaly sequence containing occasional carbonate bearing intervals, includes major rhyolitic volcaniclastic unit. Weakly feldspar-phyric rhyolite; rhyolitic tuff, tuffaceous sandstone, siltstone; fossiliferous limestone, calcareous sandstone, breccia|carbonate sedimentary rock|acid volcanic rock||N||17-JAN-23
Cudal Group undifferentiated sediments|42012|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Cudal Group|4974|||Lochkovian||||deposition|Llandovery||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Shale; lesser limestone, siltstone, sandstone, tuffaceous sandstone, greywacke, chert, felsic tuff|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cuddyong Formation|70030|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Campbells Group|3427|||Lochkovian|420|9|isotopic, U/Pb-Pb/Pb ion probe|deposition|Wenlock|||inferred, lithostratigraphic correlation||50|3500|NSW|No|64238||Thomas, O. )GSNSW)|31-JAN-06|||Named for parish/trig/creek that drains into Peelwood Creek (Goulburn 1:250 000).|Siltstone, phyllite, black siltstone, quartzose and minor volcaniclastic sandstone, quartzite, quartz-muscovite schist, felsic tuff. Commonly pyritic and often containing clear rounded volcanic quartz grains in the sandstone. Four subunits............|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||05-SEP-23
Cudgegong Volcanics|4978|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||eruption|||||||||No|43316|||||||||||N||17-JAN-23
Cudgelbar Sandstone Member|33397|Cudgelbar|30488|||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Weddin Sandstone|27609|||Famennian||||deposition|Famennian||||||500||No|50299||Sherwin L.|09-SEP-96|||Bogan Gate 1:100 000 sheet area. Lithology description from GSNSW seamless geology 2023.|Medium- to coarse-grained quartzose sandstone and conglomerate.|siliciclastic sedimentary rock|||N||28-SEP-23
Cudgewa Falls Volcanics|37537|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mount Burrowa Volcanic Group|37868|||Middle Devonian||||eruption|Lower Devonian||||||||No|23309||||||Informal ignimbrite subunit also recognised in GSNSW seamless geology.|Dark crystal poor lava, massive to flow banded rhyolite; pale green and grey ignimbrite with variable pumice and crystal content; includes fine bands of pyroclastic surge deposits with abundant accretionary lapilli.|acid volcanic rock|||N||20-JUL-23
Cues Formation|26261|||||Yes|Formation, beds|Formal|Other new published name|Defined|Thackaringa Group|25749|Himalaya Suite|33124|Statherian|1700|4|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1701|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||1000|NSW|No|38969|39662|I.L.Willis|09-FEB-82|||Part of Himalaya Suite used in Proterozoic Granites Project. Within the Willyama Supergroup. Age: ca 1700 Ma. From 2008, incorporates the Alders Tank Formation (Stevens et al. 2008 AJES 55(3), p306, 320)|Interpreted as a deformed sill-like granite, including Potosi-type gneiss.  Pelitic paragneiss, contains cordierite.|metamorphosed acid igneous rock|metasedimentary siliciclastic rock|continental rift|U|S-type|17-JAN-23
Cuga Burga Volcanics|4981|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Gregra Group|7789|Boggy Plain Suite|2091|Lower Devonian||||eruption|Late Silurian||||||1000|NSW|No|43528|23170|||||Defined Strusz 1960 - J Proc R Soc NSW 93. Part of Boggy Plain Suite. Defining ref (Dubbo Explan Notes, 1999) refers to numerous overlying and underlying units. Mumbil Group is from a previous reference.|Mafic submarine volcanics.  Contain keratophyre and quartz keratophyre, lavas and tuffs, sediments and limestone.|basic volcanic rock|sedimentary rock||N||05-SEP-23
Culaden Granodiorite|4983|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Wards Mistake Suite|67903|Lower Triassic|||inferred|intrusion|Lopingian|252.2|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|38915||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Unclear why seamless shows Middle Triassic age, but also Permian geochron age.|Strongly porphyritic, biotite-hornblende-(pyroxene) monzogranitic to granodiorite porphyrite; lesser hornblende-biotite granodiorite to quartz diorite. I-type.|acid intrusive rock|||Y|I-type|21-AUG-23
Culcairn Group|80310|||||Yes|Group, Suite|Reserved|Reserved|Reserved|Cobar Supergroup|27673|||Lower Devonian|||||Lower Devonian||||||||No|||Bull, K., Gilmore, P. (GSNSW)|17-NOV-17|||East Riverina Project. Subaerial. Includes felsic lavas and subvolcanic intrusions, pyroclastic deposits including crystal-rich ignimbrite and minor hyaloclastite. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Includes both I-type (Wallandoon) and S-type (Budginigi) ignimbrites.|||||N||17-JAN-23
Culela Mudstone Member|77061|Culela Member|33408|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Weddin Sandstone|27609|||Upper Devonian||||deposition|Upper Devonian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Published in GSNSW seamless geology. Lith desc from 2023 version.|Red to green mudstone, siltstone; interbedded fine sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||27-SEP-23
Culgoa|79943|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||For use in AJES paper as Culgoa Zone, sthn Thomson Orogen, but may be formalised as a result of planned drilling. Subsurface magnetite quartzite, mafic schist, intermediate intrusive rocks, and ultramafic rocks. ?interpreted from geophysics.|||||Y||17-JAN-23
Culgoa Suite|82400|||||Yes|Group, Suite|Formal|Variation of reserved name|Briefly described|||||Ordovician|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Narrow horizons of moderate to high magnetic intensity: intermediate intrusive rocks, ultramafic rocks, mafic schist, magnetite quartzite.|intermediate intrusive rock|ultramafic igneous rock||Y||17-JAN-23
Cullen Bullen Subgroup|24607|Cullen Bullen Sub-Group|4987|||Yes|Subgroup|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Wuchiapingian|||||Capitanian|||||||NSW|Yes|39232|40806|C.Bembrick|30-JUN-80|||See letter for more information.|Coarse-grained pebbly sandstone, coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||02-SEP-23
Cullendore Supersuite|82402|||||Yes|Supergroup|Informal|Other new published name|Described|||||Middle Triassic|247||inferred||Lower Triassic|249||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, and in 2017  publication.|I-type syenogranites.|acid intrusive rock|||Y|I-type|17-JAN-23
Cullendore Syenogranite|82401|Cullendore Granite|73992|||Yes|Formation, beds|Formal|Variation of published name|Described|||Cullendore Supersuite|82402|Middle Triassic|||inferred||Middle Triassic|246.9|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, and in 2017  publication.|Granite complex comprising pale pink, greyish pink, or grey, fine- to coarse-grained, mildly to moderately porphyritic, monzogranite-syenogranite, biotite monzogranite, and biotite-alkali feldspar granite. Locally abundant dykes.|acid intrusive rock|||Y|I-type|23-AUG-23
Cullens Creek Granodiorite|82403|Cullens Creek Granite|25867|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Triassic|246||||Lower Triassic|246.7|1.5||||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. See Cullens Creek Granite for geochron reference.|Pale to dark grey, fine- to medium-grained, slightly porphyritic hornblende-biotite granodiorite, quartz diorite and quartz monzodiorite; pale pinkish-grey, leucocratic biotite granodiorite; minor tonalite and aplite. I-type.|acid intrusive rock|intermediate intrusive rock||Y|I-type|23-AUG-23
Cullerin Granite|4992|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Cumberland Rhyolite|5014|||||Yes|Formation, beds|Informal|Unknown or process pending|Described|Boraig Group|24753|||Lower Devonian||||eruption|Lower Devonian||||||240||No|60086||||||Described. Wagga Wagga metallogenic map.|Rhyolite, rhyolitic tuff.|acid volcanic rock|||N||17-JAN-23
Cumberland Subgroup|26507|||||Yes|Subgroup|Formal|Variation of published name|Fully described|Illawarra Coal Measures|27802|||Permian|||||Late Permian||||||||No|30450|||||||||||N||17-JAN-23
Cumberoona Tonalite|74587|Cumberoona Granite|33793|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Gunning Suite|31580|Ludlow||||intrusion|Wenlock|429|2.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|64238|68592|||||Also includes part of Wheeo Granite of Chappell et al. (1991).|Dark grey, coarse-grained, strongly  foliated, porphyritic hornblende-biotite granodiorite and tonalite. Low K, Th and U radioelement response.|acid intrusive rock|||Y|I-type|17-JAN-23
Cumbijowa Granite|5017|Cumbijowa Adamellite""|38928|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Cumbijowa Suite|31563|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Formal name originally not intended. Name used on Parkes 1997 prelim. 1:100k sheet.|Garnetiferous biotite-muscovite granite porphyry|acid intrusive rock|||Y||17-JAN-23
Cumbijowa Suite|31563|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Late Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Cumboogle Formation|31302|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|50590||Warren A.|11-MAR-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Cumborah Gravel|5018|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Early Miocene||||deposition|Oligocene||||||||No|35187||||||Taylor (1976, 1978a). See also Cumborah Formation.  Tg shown on Nyngan-Walgett 1:250 000 sheets is correlated with this unit. Age: 23-21Ma.  In the Walgett area.|Quartz-rich gravel sheets.|regolith|||N||17-JAN-23
Cunglebung Creek beds|5030|Cunglebung Creek Beds|23526|||Yes|Formation, beds|Informal|Resvd name published|Defined|Coffs Harbour Association|38341|||Westphalian||||deposition|Tournaisian|||||||NSW|Yes|38755||Fergusson C.L.||Russell, T.|10-DEC-83||Black-grey massive and laminated metaclaystone and metasiltstone, with rare lithic wacke, breccia and chert|fine grained siliciclastic rock|||N||17-JAN-23
Cunningham Formation|5031|Cunningham Group|30809|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Emsian||||deposition|Lochkovian||||||3700|NSW|No|43528|23170|||||Defining ref (Dubbo Explan Notes, 1999) refers to several overlying and underlying units, so no single one is selected. Merrions Formation is from a previous reference.|Phyllite, slate, shale, siltstone,  quartz-feldspar-lithic- calcareous sandstone, tuff|metasedimentary siliciclastic rock|||N||17-JAN-23
Cunninyeuk granite|80460|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Cunninyeuk granite suite|80441|Upper Devonian|||inferred, geological correlation||Upper Devonian|||inferred, geological correlation|||||No|70718||||||Extends across Swan Hill and Balranald map sheet areas.|Interpreted to be S-type granite , with metamorphic aureole.|acid intrusive rock|||Y||17-JAN-23
Cunninyeuk granite suite|80441|Cunninyuek Granite Suite|76049|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Upper Devonian|||inferred, geological correlation||Upper Devonian|||inferred, geological correlation|||||No|70718||||||Informal name, derived from geophysics. Suite extends across Swan Hill, Deniliquin, Balranald and Hay 1:250k map sheet areas.|Interpreted to be S-type granites , with metamorphic aureoles.|acid intrusive rock|||Y|S-type|17-JAN-23
Cupala Creek Formation|24235|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Kayrunnera Group|9352|||Ordovician||||deposition|Late Cambrian|496|||||1020|NSW|Yes|38692|66623|D.T.Crane, G.Neef, C.Powell|11-OCT-79|Russell, T.|18-JUN-82|Geological Province: Tasman Fold Belt. See also informal Cupala Creek Sill.|Olive-grey siltstone, red and grey arenite, basal conglomerate. Fluvial and terrigenous coarse clastic sediments.|siliciclastic sedimentary rock|||N||17-JAN-23
Curdimurka Subgroup|24236|||||Yes|Subgroup|Formal|Resvd name published|Defined|Callanna Group|3338|||Cryogenian||||deposition|Neoproterozoic|802|10|isotopic, U/Pb|eruption||4700|SA|Yes|37854|37854|R.P.Coats|19-DEC-80|Gatehouse, C.G.|10-AUG-83|age: Cryogenian? Date is for Rook Tuff, near base of Curdimurka Subgroup.|Siltstone, dark grey, carbonaceous, lithic, pyritic, laminated, micaceous; sandstone, feldspathic, lithic, cross bedded, halite casts; dolomite, stromatolitic, cryptalgal laminated, brown to yellow weathering; limestone, stromatolitic|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Curmulee Conglomerate|24238|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Upper Devonian||||deposition|Upper Devonian||||||20|NSW|Yes|39028|40276|M.Owen|03-APR-81|Russell, T.|14-SEP-82|For use in the Araluen 1:100 000sheet.|Reddish-brown massive medium-grained polymictic conglomerate, minor pebbly arenite and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Curra Creek Conglomerate|5052|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Canangle Subgroup|3442|||Famennian||||deposition|Famennian||||||1000|NSW|No|43512|43512|||||Defined 1963. Wellington 1:100 000 sheet area.  See also Curra Curra Conglomerate.|Red-purple conglomerate, minor interbedded red-purple sandstone and siltstone.|siliciclastic sedimentary rock|||N||10-JUL-23
Curra Keith Tongue Member|82404|Curra Keith Tongue|27137|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Isismurra Formation|8801|||Visean|342.1|3.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Tournaisian|349.5|1.8|isotopic, U/Pb-Pb/Pb ion probe|eruption||||No|||||||Used in GSNSW seamless geology dataset 2021. See also Curra Keith Ignimbrite Tongue.|Buff, lithoidal dacitic ignimbrite with interbedded sandstone, shale and conglomerate.|acid volcanic rock|||N||17-JAN-23
Currabubula Formation|5055|Currabubula formation|5056|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Currangandi Group|38099|||Sakmarian|293|4|isotopic, K/Ar|deposition|Gzhelian|302|4|isotopic, K/Ar|||||No|43418|62095|||||Synonymous with Upper Kuttung Series, Rossmore Formation and Currabubula Fm. of Voisey and Williams (1964). Includes 18 members, some unnamed.  In the Werrie Block/Tamworth Belt. Numerical age: 293+/-4 Ma, K-Ar (McPhie 1984) was Carboniferous then. Modern references still consider this unit to be Late Carboniferous.|Paraconglomerate and orthoconglomerate with subordinate pebbly sandstone, sandstone, mudstone; ignimbrite and airfall tuff.|siliciclastic sedimentary rock|acid volcanic rock|forearc|N||17-JAN-23
Currabungla Granite|38763|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Scott, M.|01-AUG-03|||TARALGA 1:100 000 map sheet||acid intrusive rock|||Y||17-JAN-23
Currah Granite|33194|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Koetong Supersuite|9704|Silurian|||inferred|intrusion|Silurian|||inferred|||||No|50554||Scott M.|10-DEC-98|||Forbes 1:250 000 sheet area.|Biotite-muscovite granite (as subcrop only).|acid intrusive rock|||Y||17-JAN-23
Currajong Limestone Member|5060|Currajong Limestone|5062|||Yes|Member, phase|Formal|Other new published name|Defined|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||120||No|32483|||||||Blue-grey, massive-well laminated, thinly-thickly bedded, fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Currambene Dolerite|5065|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Triassic||||intrusion|Triassic||||||||No|29750||||||This unit was incorporated in the Coonemia Complex by Carr (1984), but not by GSNSW seamless 2021-2023 which uses Currambene Dolerite but not Coonemia Complex.|Coherent porphyritic dolerite.|basic intrusive rock|||Y||07-JUN-23
Currangandi Group|38099|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Pennsylvanian||||eruption|Serpukhovian|||||||NSW|Yes|50613|50613|Roberts, J.|08-APR-03|Taylor, G., Neef, G.|24-SEP-03|Tentatively also includes Willuri Formation and Currabubula Formation. Lithgroups updated from GSNSW seamless geology dataset 2021.|Continental, volcaniclastic sandstone, conglomerate and siltstone with interbedded ignimbrites, rare lavas and in some cases glacigene features including varved shale, dropped pebbles and tillite.|acid volcanic rock|siliciclastic sedimentary rock||N||02-JUN-23
Currango beds|28491|Currango Beds|25869|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|45147|||||||||||N||17-JAN-23
Currangorambla Granophyre|5068|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|39409|||||||||||Y||17-JAN-23
Currawalla Shale|74607|Currawalla Formation|30098|||Yes|Formation, beds|Formal|Variation of published name|Defined|Bendoc Group|1474|||Katian|||inferred, biostratigraphic correlation|deposition|Sandbian|||inferred, biostratigraphic correlation||200|250||No|61964|61964|||||Name applied to former 'thick-bedded' sequence of Trigg's Tallebung Group (1987).  Intruded by Yalgogrin, Kikoira and Ungarie Granites. For palaeontological details see RefID: 61964 (p258-259). Contains graptolites which are Gisbornian to early Bolindian in age|Finely laminated or massive shale (grading to slate) with minor interbedded quartz sandstone with graptolites.|fine grained siliciclastic rock|||N||17-JAN-23
Currawang Basalt|27138|Currawang Volcanics|5073|||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Fairy Group|26052|||Ludlow|||inferred, geological correlation|eruption|Ludlow|423.4|2.5|inferred, underlying unit|||1000|NSW|Yes|30730|30735|Felton E.A.||Bryan, J.H.|27-OCT-75||Dark green amygdaloidal meta-flow banded pillow-basalt, fine grained basaltic hyaloclastite, rare mafic volcaniclastic sandstone, cherty mudstone, tuffaceous siltstone and mudstone.|metamorphosed basic igneous rock|siliciclastic sedimentary rock||N||17-JAN-23
Currawinya Conglomerate|5077|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pennsylvanian||||deposition|Pennsylvanian|||||||NSW|No|32086|32086|||||New England Orogen.|||||N||17-JAN-23
Curricabark Formation|30310|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|24008||Stratford J.|12-JUN-96|||Gamilaroi terrane in upper Barnard River catchment, centred on an area approx. 90 km north of Scone|||||N||17-JAN-23
Currowan Creek Basalt Member|78494|||||Yes|Member, phase|Informal|Other new published name|Described|Comerong Volcanics|25853|||Upper Devonian||||eruption|Middle Devonian||||||||No|66768|||||||Many 1-2m thick basalt flows, commonly amygdaloidal; amygdales filled with quartz, chlorite, calcite and epidote. Fluviatile, red sandstone and siltstone interbedded in the top 80m of unit.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Currowong Granodiorite|5084|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Currowong Suite|5085|Lower Devonian|415.3|3.7|isotopic, Rb/Sr|intrusion|Late Silurian|||||||NSW|No|40328|41905|||||Named after Corrowong Creek? Rb/Sr Age: 415.3+/-3.7 Ma.  See also the informal Currowong Granite.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Currowong Suite|5085|Currawong Suite|5081|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Currowong Supersuite|5087|Lower Devonian|||||Silurian||||||||No|42827||||||Named after Corrowong Creek? Age ~417 - 415 Ma.|||||Y||17-JAN-23
Currowong Supersuite|5087|||||Yes|Supergroup|Formal|Variation of published name|Briefly described||||||||||||||||||No|42827||||||Named after Corrowong Creek? See also Dalgety Supersuite.|||||Y||17-JAN-23
Currumbene Siltstone Member|5090|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45090||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Currumburrama Volcanics|21594|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||eruption|Upper Ordovician||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Does not outcrop. Age may be close to Ordovician/ Silurian boundary. Lithology description from GSNSW seamless geology 2023.|Latite, ?basalt, porphyritic andesite, trachyandesite, andesite-trachyte, syenite and micromonzonite (as sub-crop only).|basic volcanic rock|intermediate volcanic rock||N||28-SEP-23
Curumbenya Ignimbrite Member|31705|Curumbenya Ignimbrite|29510|||Yes|Member, phase|Formal|Resvd name published|Fully described|Dulladerry Volcanics|29509|||Givetian||||intrusion|Devonian|376|4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|43782||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Parkes 1:100k sheet area. Maximum thickness: >200m.|Quartz and K-feldspar - phyric ignimbrite.|acid volcanic rock|||N||17-JAN-23
Cusack Creek Conglomerate Member|5094|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Lochiel Formation|25172|||||||deposition|||||||||No|32127|||||||||||N||17-JAN-23
Cusin Creek Granite|33122|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mundi Mundi Suite|33123|Mesoproterozoic|1596|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Paleoproterozoic|1600|||||||No|22553||Budd, A., Bastrakova, I.|19-NOV-98|||Broken Hill area, sheets SH54-15,7134. Used in Proterozoic Granites Project (Gc), Broken Hill - Olary Province.||acid intrusive rock|||Y||17-JAN-23
Cut Hill Formation|5097|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|32671|||||||||||N||17-JAN-23
Cuttaburra Granite|79634|Cuttaburra granite""|79646|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Ludlow||||magmatic crystallisation|Wenlock|428.3|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|69511|||||||Medium-grained, porphyritic granodiorite; crystals of feldspar, quartz and biotite up to 4.5mm long occur in a coarsely recrystallised groundmass.|acid intrusive rock|||N||17-JAN-23
Cymbric Vale Formation|27385|||||Yes|Formation, beds|Formal|Other new published name|Defined|Gnalta Group|7460|||Early Cambrian|510.3|3.2|isotopic, U/Pb-Pb/Pb ion probe|deposition|Early Cambrian|531.8|8|isotopic, U/Pb-Pb/Pb ion probe|||1900|NSW|Yes|43501||Kruse P.D.||NSW SNSC||Approved by NSW Sub-Committee. See file 82/86 folios 209 and 195. Geological Province: Tasman Fold Belt. Includes a dacitic/rhyolitic dyke which intrudes Mount Arrowsmith Volcanics.|Pink to brown, medium to coarse-grained, poorly sorted feldspathic and lithic sandstone; interbeds of fossiliferous calcareous and cherty siltstone, blue-green chert, silicified sandstone; rhyolitic vitric tuffs; dacitic quartz-plagioclase porphyry.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Daalboro Sandstone|5119|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Yarra Yarra Creek Group|29299|||Emsian||||deposition|Pragian||||||||No|9548||||||Lithology description from GSNSW seamless geology 2023.|Coarse-grained, massive to cross-bedded, thickly bedded sandstone.|siliciclastic sedimentary rock|||N||28-SEP-23
Daisy Plains Leucosyenogranite|82407|Daisy Plains Leucomonzogranite|76948|||Yes|Formation, beds|Formal|Variation of published name|Described|||Carrai Supersuite|82123|Upper Triassic|||inferred||Upper Triassic|||inferred, intrusive relationship|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Shown as Late Triassic, matching other units in this suite.|Fine- to medium-grained, broadly equigranular, biotite leucosyenogranite with lesser leucomonzogranite. I-type.|acid intrusive rock|||Y|I-type|23-AUG-23
Dakiel Formation|5129|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Rockhampton Group|16202|||Visean||||deposition|Visean|||||800|1000||No|44360|44360|||||Tentatively made a constituent of the Rockhampton Group following the discontinuation of the previous Caswell Creek Group parent.||siliciclastic sedimentary rock|||N||17-JAN-23
Dalgety Granodiorite|5142|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Dalgety Suite|5143|Late Silurian|413.1||isotopic, Rb/Sr|intrusion|Late Silurian|435.1|4.4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33779|41905|||||See also the informal Dalgety Granite. See also RefID 67060 p505.|Biotite granodiorite and monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Dalgety Suite|5143|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Dalgety Supersuite|5145|Late Silurian||||intrusion|Silurian||||||||No|41563||||||Age ~435 Ma.|S-type granite, felsic; equigranular, non-fractionated granitoids.|acid intrusive rock|||Y|S-type|17-JAN-23
Dalgety Supersuite|5145|||||Yes|Supergroup|Formal|Variation of published name|Described|||||Wenlock||||intrusion|Wenlock||||||||No|42827||||||Superseded by Currowong Supersuite?|Granites|acid intrusive rock|||Y||17-JAN-23
Dalmally Basalt Member|5150|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Triassic||||eruption|Triassic|||||||NSW|Yes|32801|32803|Retallack G.J.|30-JUN-75|Hawke, J.|27-AUG-77|||basic volcanic rock|||N||17-JAN-23
Dalnit Bore Metasediments|23530|||||Yes|Formation, beds|Formal|Other new published name|Defined|Paragon Group|14860|||Statherian|1642|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1655|4|inferred, underlying unit|||700|NSW|No|38969|39662|W.J.Stroud|17-FEB-82|||Within the Willyama Supergroup. Depositional age: 1642+/-5 Ma. Equivalent of Dayana Formation in Olary Domain.|Fine-grained, feldspathic beds interpreted as tuffaceous siltstones. Graphitic phyllite with rare lenticular psammite.|metasedimentary siliciclastic rock||continental rift|N||17-JAN-23
Dalrida Granite|31423|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Eifelian||||intrusion|Eifelian|395.4|1.7|||||NSW|No|60548||Raymond, O.L.|24-JUL-97|||Marsden 1:100 000 sheet area.|Muscovite-biotite granite|acid intrusive rock|||Y||17-JAN-23
Dalwood Group|28493|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Artinskian||||deposition|Kasimovian|303.7|2.4|isotopic, U/Pb-Pb/Pb ion probe|||360||No|43385||||||See also Lexicon. Name supersedes Lower Marine Beds, Series, Stage.  Geological Province: Cranky Corner Basin. Some former basalts of this group are now included in the Alum Mountains Volcanics. Proposed by Slee (1968) that Dalwood Group should be subdivided, from top to base, into Billy Brook Formation, Cranky Corner Sandstone, Branch Creek and Tamby Creek Formations. Branch Creek Fm. was not retained. Age control from volcaniclastics and tuffs in Billy Brook and Tamby Creek Formations.|Sandstone, lithic sandstone, conglomerate, siltstone, basalt|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Damnation Gully Gabbro|81945|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Fine- to medium-grained, equigranular gabbro, outcrops are block and dark green-grey.|basic intrusive rock|||Y||17-JAN-23
Danabar Claystone Member|77390|||||Yes|Member, phase|Reserved|Reserved|Reserved|Trinkey Formation|18599|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12||||Tuffaceous claystone member|fine grained siliciclastic rock|||N||17-JAN-23
Danberry loamy sand|5170|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||||||N||17-JAN-23
Dancing Dicks Conglomerate Member|82429|Dancing Dicks Conglomerate|5171|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Tangaratta Formation|17776|||Tournaisian|||||Tournaisian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Polymictic para- and ortho-conglomerate.|medium-coarse grained siliciclastic rock|||N||29-AUG-23
Dandahra Creek Leucosyenogranite|82125|Dandahra Creek Leucogranite|5174|||Yes|Formation, beds|Formal|Variation of published name|Described|||Dandahra Creek Suite|80727|Carnian|||inferred||Ladinian|237.6|1.8|inferred|||||No|71628||||||This name not used in quoted reference - Chisholm et al., 2014a. Used in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408. Also used in GSNSW seamless geology dataset 2021, 2023.|Very coarse- to coarse-grained, equigranular, biotite leucosyenogranite.|acid intrusive rock|||Y||24-AUG-23
Dandahra Creek Suite|80727|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Upper Triassic|237||inferred, geological correlation||Middle Triassic|240||inferred, geochemical correlation|||||No|72528||||||Published in: C. J. Bryant, 2017, A compendium of granites of the southern New England Orogen, eastern Australia (Refid: 71628), indexing pending. A full description appears in chapter 17 pp4-12. Includes Dandahra Creek Leucosyenogranite, Chaelundi Mountain Monzogranite, Mann River Leucogranite.|ferroan, alkali-calcic to calc-alkaline, A-type granites. Leucosyenogranite, monzogranite, leucogranite.|acid intrusive rock|||Y|A-type|17-JAN-23
Dangarfield Formation|25714|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Visean||||deposition|Tournaisian||||||1020|NSW|Yes|32671|35245|Roberts J., Oversby B.S.|03-AUG-70|||Age: Early Tournaisian to Early Visean. RefID 22857 significantly increases the maximum thickness stated in the Definition.|Thin-bedded brown to green lithic arenite, minor dark to light-grey oolitic or biogenic limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Danswell Creek Granodiorite|24240|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Wangrah Suite|31494|Middle Devonian|353|7|isotopic, K/Ar|intrusion|Middle Devonian|356|7|isotopic, K/Ar||||NSW|Yes|36414|36413|S.J.Richardson|26-MAR-75|Hawke, J.|20-FEB-79||Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Danu Rhyolite Member|81955|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Macha Formation|81953|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Porphyritic, flow-foliated rhyolite containing phenocrysts of anorthoclase, arfvedsonite, aegerine and quartz.|acid volcanic rock|||N||17-JAN-23
Dapper Formation|77585|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Millie Group|30036|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Gunnedah Basin- Cobbora Embayment, Tooraweena Trough|Thick sequence of pebble and granule conglomerate, sandstone, siltstone, claystone, carbonaceous claystone and coal|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Dapto Latite Member|5187|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Gerringong Volcanics|7155|||Cisuralian||||eruption|Cisuralian||||||||No|29900||||||Included in the Shoalhaven Group by Sherwin and Holmes (1986). Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Two porphyritic latite flows, separated by breccia.|intermediate volcanic rock|||N||17-JAN-23
Darbys Ridge Conglomerate|33453|Darby Conglomerate Member|5203|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Yarra Yarra Creek Group|29299|||Lower Devonian||||deposition|Lower Devonian|||||||NSW|No|24417||Sherwin L.|05-MAY-99|||Forbes 1:250 000 sheet area.|Brown to red-brown pebbly quartz sandstone; polymictic pebble to cobble ortho- to para-conglomerate with a coarse-grained sandstone matrix.||||N||20-JUL-23
Darcoola granite|76032|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Appear to be informal unit based entirely on geophysics, although there may be some data from water bores?  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943.|S-type granitic rocks inferred.|acid intrusive rock|||Y|S-type|17-JAN-23
Dargals Monzogranite|77026|Dargals Adamellite|32245|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Free Damper Suite|31577|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. State list map symbol suggests this unit now (2012) regarded as Devonian? Published in GSNSW seamless geology.|Biotite monzogranite commonly containing hornblende.|acid intrusive rock|||Y|I-type|29-SEP-23
Darkes Forest Sandstone|5221|Darkes Forest Sandstone Member|24904|||Yes|Formation, beds|Formal|Other new published name|Described|Sydney Subgroup|17602|||Late Permian||||deposition|Late Permian||||||||No|34060||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Daroobalgie Volcanics|23533|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Silurian||||eruption|Ordovician|||||||NSW|No|40891|46522|Krynen, J.|14-OCT-85|||Included in Parkes Volcanics in 2007, but subsequently reinstated as a distinct unit in 2011. See also misspelling Daraboolgie.|||||N||17-JAN-23
Darthula Rhyodacite Member|37914|Darthula Rhyodacite|30054|||Yes|Member, phase|Formal|Resvd name published|Defined|Rocky Creek Conglomerate|16236|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03||||||N||17-JAN-23
Darts Creek Mudstone|23537|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Tournaisian||||deposition|Upper Devonian||||||1100|NSW|No|36057|36057|D.T.Crane, J.W.Hunt|10-FEB-76||||Monotonous dark grey mudstone and siltstone with minor interbedded lithic sandstone near the top of the formation|siliciclastic sedimentary rock|||N||17-JAN-23
Davies Creek Granite|5274|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Wologorong Supersuite|69873|Late Silurian||||intrusion|Late Silurian||||||||No|43469||||||Oberon area. Intrudes Rockley Volcanics. Comprises of a series of syntectonic S-type granophyre dykes and stocks.|Foliated to massive, pink, medium-grained biotite granite and leucogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Davies Plains Limestone Member|5275|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32590||||||||carbonate sedimentary rock|||N||17-JAN-23
Davys Plains Limestone Member|5279|Davys Plains Limestone|5280|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|33063|33063|||||For lithology description see Semeniuk (1973a,b). 95m thick at type section.|Pisolite- and lithoclast-dominated limestone.|carbonate sedimentary rock|||N||17-JAN-23
Dawes Range Group|5283|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|34085|||||||||||N||17-JAN-23
Dawsons Granite|35345|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Parkesbourne Suite|69872|Pragian||||intrusion|Lochkovian||||||||No|50232||Johnston A.|15-MAR-00|||GUNNING 1:100 000 sheet area.  Published by Thomas, O.D. et al (2001).  Part of the Wologorong Batholith.|White and cream to grey, leucocratic porphyritic biotite-muscovite granite with quartz and feldspar phenocrysts, micaceous clots to up to 10mm and metsedimentary xenoliths up to 30mm, set in groundmass of 1mm crystals with local graphic textures.|acid intrusive rock|||Y||17-JAN-23
Daylesford Limestone|27079|Daylesford Formation|24908|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Bowan Park Limestone Subgroup|31724|||Katian||||deposition|Katian||||||250|NSW|No|33063|33063|||||Probably also supersedes the Daylesford Limestone Member?|Predominantly skeletal wackestone with lime mudstone as the pevasive matrix. Coarse clastic to conglomerate facies contain volcaniclastic detritus.|carbonate sedimentary rock|||N||17-JAN-23
Days Creek Gabbro|5290|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Days Creek Suite|74036|Cisuralian||||intrusion|Cisuralian||||||||No|31806|||||||Olivine-hypersthene and hypersthene gabbro, migmatite, minor diorite and granite. Calc-alkaline and tholeiitic complexes associated with the Hillgrove Plutonic Suite|basic intrusive rock|||Y||17-JAN-23
Days Creek Suite|74036|||||Yes|Group, Suite|Reserved|Reserved|Unpublished||||||||||||||||||No|||Blevin, Bultitude & Champion|17-DEC-07|||Blevin, Bultitude & Champion, pers.comm., Nov 2007|||||Y||17-JAN-23
Daysdale Granite|5291|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
De Drack Formation|5292|Mount Fairy Beds|12704|||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Fairy Group|26052|||Ludlow||||deposition|Wenlock||||||300|NSW|Yes|31411|40276|Felton E.A.||Bryan, J.H.|27-OCT-75|Previously of Lambie Group. Used on the new GOULBURN 1:250 000 sheet (2006) also. Now includes some of the old Wiarborough Formation, although most of the old Wiarborough Formation is included in Cowpers Creek Conglomerate (Goulburn 1:250000 Explanatory Notes (Thomas & Pogson 2012)).|Volcaniclastic sandstone, laminated tuffaceous and cherty siltstone and shale, limestone, barite, calcareous siltstone and mudstone.  Rare vitric tuff and volcanic sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
De Nardi granite|79736|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Ludlow||||magmatic crystallisation|Wenlock|427.2|3.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|69511||||||Dated sample of unnamed granite at De Nardi Prospect from diamond drill core from hole CCR-144, 366.68 - 370 m.|Partially carbonate- and sericite-altered, coarse-grained, leucocratic granite.|acid intrusive rock|||Y||17-JAN-23
Deakin Volcanics|25874|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Douro Group|5668|Laidlaw Volcanic Suite|10023|Late Silurian|||inferred, overlying unit|eruption|Late Silurian||||||1500|ACT|Yes|43385|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|BMR Bulletin 233. Similar composition and probably similar age (Early Devonian) to Colinton Volcanics. Includes acanthodian fish spines in sandstone. Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group [2012].|Rhyodacitic ignimbrite and minor volcaniclastic and argillaceous sediments|acid volcanic rock|||N||17-JAN-23
Deards Coal Member|77066|Deards seam|38304|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Leloma Formation|23722|||Late Permian||||deposition|Late Permian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12||||Coal splits separated by stone bands (coal is 50%), high- and medium-volatile bituminous coal|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Deards seam|38304|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by Deards Coal Member [GSNSW July-2012].|||||N||17-JAN-23
Dederang Siltstone Member|73365|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Meryula Formation|11741|||Lower Devonian||||deposition|Late Silurian||||||||No|70941||Burton, G.|22-MAY-07|||For use on map sheet 8135; nearest town is Coolabah. To be published: 2008? Explan.Notes for Sussex abd Byrock 1:100K map sheets, GSNSW. Within the Kopyje Group (Cobar Supergroup).|Massive siltstone; buff to red, quartzose, micaceous, fine-grained sandstone and siltstone (locally ferruginised); strongly cleaved.|siliciclastic sedimentary rock|||N||17-JAN-23
Deep Gully Creek Conglomerate Member|5335|||||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Cowcumbala Rhyolite|27135|||Lower Devonian||||deposition|Lower Devonian||||||50|NSW|No|35206|22638||||||Pebble conglomerate, tuffaceous sandstone, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Deepwater Syenogranite|80703|Kingsgate Leucogranite|37189|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Bolivia Range Suite|73987|Lopingian|||inferred||Lopingian|256.1|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Appears in: C.J. Bryant, 2017, A compendium of granites of the southern New England Orogen, eastern Australia [refID 71628]. A full description is found in chapter 15 pp12-15. Rocks previously included in Kingsgate Syenogranite. Coeval with Arranmor Ignimbrite Member (Emmaville Volcanics), occuring 40km north of Glen Innes. Includes Mo-Sn-W-Bi mineralisation.|Coarse-grained, biotite leucosyenogranite to K-feldspar-rich leucomonzogranite.|acid intrusive rock|||Y||20-AUG-23
Delegate Monzogranite|77005|Delegate Adamellite|25876|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Delegate Suite|31500|Lower Devonian|419.2|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Ludlow|424.5|.94|isotopic, Rb/Sr|||||No|72571||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Time Scale ICS 2012. See also RefID 67060 p505. Published in GSNSW seamless geology.|Coarse-grained, pinkish-white, felsic biotite monzogranite; porphyritic in centre grading to equigranular at the margins|acid intrusive rock|||Y|I-type|29-SEP-23
Delegate River Mudstone|5352|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Bredbo Group|21321|||Ludlow||||deposition|Late Silurian||||||220||No|32671|22815|||||Not related to Delegate Adamellite, Suite or Supersuite.|Fossiliferous mudstone, calcareous shale and limestone|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Delegate Suite|31500|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Delegate Supersuite|31499|Lower Devonian|||||Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Delegate Supersuite|31499|||||Yes|Supergroup|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Dellwood Ignimbrite Member|36826|Dellwood Ignimbrite|35761|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian|254.8|1.5||intrusion|Permian||||||||No|23859|23859|||||Type Locality: 399000E, 6746000N||acid volcanic rock||continental margin arc|N||09-AUG-23
Delungra Volcanic Suite|69824|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Early Miocene|19|||eruption|Chattian|21.3|.4|isotopic, Ar/Ar||||NSW|Yes|63347|63347|Dawson, M. (GSNSW)|21-NOV-05||||Lithologies include mafic flows, intrusions and volcaniclastic rocks of theoleiitic and alkaline composition.|igneous volcanic rock|basic igneous rock||N||02-JUN-23
Demon Creek Granite|5360|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|30911||||||||acid intrusive rock|||Y||17-JAN-23
Dempsey Formation|5365|Dempsey Beds|5364|||Yes|Formation, beds|Formal|Variation of published name|Described|Tomago Coal Measures|18289|||Late Permian||||deposition|Late Permian||||||590||No|43491|||||||Siltstone, sandstone, tuff; minor carbonaceous claystone; several coal seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Denman Formation|25877|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wittingham Coal Measures|20334|||Late Permian||||deposition|Late Permian||||||30|NSW|No|29942|40805||||||Dark grey striped sandstone-siltstone laminite with abundant burrows.|siliciclastic sedimentary rock|||N||02-SEP-23
Depot Glen Formation|76024|Depot Glen beds|21640|||Yes|Formation, beds|Formal|Variation of published name|Defined|Teltawongee Group|37348|||Drumian|504.5|2.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Miaolingian||||deposition|||NSW|No|66921|66623|||||Felsic tuffs dated (Koonenberry Explan Notes p37, 348. RefID66623).|Strongly-cleaved metamudstone (phyllite); interbedded metasiltstone and subarkose sandstone (containing detrital muscovite); regionally metamorphosed to greenschist facies; some laminated tuffaceous metamudstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Derale Sandstone|5387|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Knowles Group|30853|||Famennian||||deposition|Upper Devonian||||||800||No|43476|23170|||||Formerly considered part of Lambie Group.|Richly fossiliferous quartz arenite and sublithic arenite, rare shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Deriah Formation|5391|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Ladinian||||deposition|Ladinian||||||160||No|41472|||||||Very distinctive green sandstone: fine- to medium-grained lithic sandstone rich in volcanic fragments, with common mudstone clasts overlain by off-white lithic sandstone and dark grey mudstone.|medium-coarse grained siliciclastic rock|||N||27-AUG-23
Dering Siltstone|26517|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Teamsters Creek Subgroup|17916|||Neoproterozoic||||deposition|Neoproterozoic||||||200||No|30261|||||||Comprises dark grey laminated diamictite with interbedded thin (1m) gravel and boulder beds, and pebbly siltstone, siltstone and slump breccias with a high clast to matrix ratio.|siliciclastic sedimentary rock|||N||17-JAN-23
Derra Derra Volcanics|69826|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Delungra Volcanic Suite|69824|Early Miocene|22.6|.5|isotopic, K/Ar|eruption|Chattian|27.3|.6|isotopic, K/Ar|||150|NSW|Yes|63347|63347|Dawson, M. (GSNSW)|22-NOV-05|||Interfingers with Bingara Volcanics.|Quartz- and olivine-bearing tholeiitic basalt and diamond-bearing gravels.|basic volcanic rock|||N||27-APR-23
Derrida Phase|74616|Derrida Granite|5396|||Yes|Member, phase|Formal|Variation of published name|Described|Ungarie Granite|18839|||Ludlow||||intrusion|Wenlock|426.3|3.3|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|61964||||||Describes a part of the Ungarie Granite, formerly mapped  separately as "Derrida Granite" (Chappell et al, 1991) - with different chemical properties and enhanced prospectivity compared with the rest of Ungarie Granite. On NYMAGEE sheet. Also published in GSNSW seamless geology.|Equigranular, fine- to medium-grained cordierite-biotite granite.|acid intrusive rock|||N|S-type|27-SEP-23
Derriwong Group|5403|Derriwong beds|5406|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Devonian||||deposition|Late Silurian||||||100||No|36066||||||Equivalent of the Combaning Formation. Includes Lochkovian vertebrate fossil fauna (See "Derriwong Beds")|Sandstone, siltstone, shale, basal polymictic conglomerate; porphyritic rhyolitic volcanics and shallow intrusives; minor limestone|siliciclastic sedimentary rock|acid volcanic rock|oceanic backarc|N||17-JAN-23
Deua Formation|5426|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Upper Devonian||||deposition|Upper Devonian||||||360|NSW|Yes|39028|40276|Owen M.|01-APR-82|Russell, T.|14-SEP-82|Contains marine sediments and fish fauna. Includes brachiopods and bivalves.|Medium to fine purplish quartzofeldspathic sandstone, minor shale|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Devils Chimney breccia pipe|76949|Devils Chimney|5429|||Yes|Formation, beds|Informal|Variation of published name|Reserved|||||Neogene|||||Mesozoic||||||||No|||||||See previous name for definition.|A 60m tall heterolithic volcanic breccia pipe. Clast-supported breccia material includes sedimentary, mafic and ultramafic igneous rock clasts. Matrix is fine-grained and turbid hematite- and goethite-pigmented kaolinite|igneous volcanic rock|||N||17-JAN-23
Devils Elbow Limestone Member|5432|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Silver Gully Formation|16884|||Devonian||||deposition|Devonian||||||||No|42376||||||Name may be obsolete.||carbonate sedimentary rock|||N||17-JAN-23
Devils Pulpit Member|34256|||||Yes|Member, phase|Formal|Variation of published name|Defined|Tangerang Formation|27094|||Pragian||||deposition|Lochkovian||||||200||No|22678||||||Reservation of Devils Pulpit Sandstone Member lapsed 1984. Reservation of Devils Pulpit Tuff Member lapsed 1992.|Massive, thick-bedded, occasionally graded, rhyolitic polymictic volcanic breccia + rare fossil fragments, intercalated with thick-bedded, often graded, coarse- and fine-grained volcanic sst, minor laminated vitric mudstone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Devonian felsic to mafic volcanics 76557|76557|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|354|||eruption|Lower Devonian|410|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly a bimodal mixture of mafic and felsic volcanics; may include andesites|basic volcanic rock|acid volcanic rock||N||17-JAN-23
Devonian sedimentary rocks 76555|76555|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|384|||deposition|Lower Devonian|410|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Devonian sedimentary rocks 76556|76556|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|384|||deposition|Lower Devonian|410|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Devonian to Carboniferous felsic to mafic volcanics 76549|76549|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|333|||eruption|Middle Devonian|384|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly a bimodal mixture of mafic and felsic volcanics; may include andesites|basic volcanic rock|acid volcanic rock||N||17-JAN-23
Devonian to Carboniferous sedimentary rocks 76547|76547|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|314|||deposition|Lower Devonian|410|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Devonian to Carboniferous sedimentary rocks 76548|76548|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|333|||deposition|Middle Devonian|384|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Devonian to Carboniferous volcaniclastic sedimentary rocks 76546|76546|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|314|||deposition|Upper Devonian|368|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly volcaniclastic sedimentary rocks.|sedimentary rock|||N||17-JAN-23
Dewrang Group|24917|Dewrang Formation|5442|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Guadalupian|||||Cisuralian||||||580||No|40872|44244|||||Of the Gloucester Basin (New England Fold Belt).|||||N||17-JAN-23
Dhruwalgha Tinguaite|5445|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Triassic|136|5|||Upper Triassic||||||||No|43346|43346|||||K-Ar age from Jones DG 1986 K-Ar isotopic dates, New South Wales Geological Survey of New South Wales. GS NSW Seamless shows unit age as Late Triassic.|Porphyritic tinguaite.||||Y||23-AUG-23
Dicksons Road Dacite Member|27141|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Florida Volcanics|6774|||Lower Devonian||||eruption|Lower Devonian|||||||NSW|No|35287|39618||||||Flow-foliated porphyritic dacite.||||N||20-JUL-23
Dicky Cooper Monzogranite|77039|Dicky Cooper Adamellite|32264|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Biotite monzogranite commonly containing cordierite|acid intrusive rock|||Y|S-type|29-SEP-23
Digby Formation|5470|Digby Beds|5469|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Lower Triassic||||deposition|Late Permian||||||250||No|38614||||||Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|Conglomerate at base, overlain by quartz-lithic sandstone which gradually changes into quartzose sandstone unit of cross-bedded sandstone with well-rounded quartz pebbles; a siltstone/sandstone and grey/purple claystone palaeosol is present on top.|siliciclastic sedimentary rock|||N||21-AUG-23
Digby Formation, Napperby Formation|42287|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Ladinian||||deposition|Induan||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Poorly sorted, pebble to boulder orthoconglomerate; finely laminated quartzose sandstone and siltstone interbedded with thick, massive or crossbedded quartzose sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Dights Creek Coal|5479|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Glen Gallic Subgroup|27417|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Durain rich coals separated by tuffaceous claystone.|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Dights Hill Tonalite|28505|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|31278|||||||||||Y||17-JAN-23
Digilah Formation|5480|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Callovian||||deposition|Callovian||||||30||No|31326||||||Of Loughnan and Evans (1978). Formerly (?) the upper section of the Purlawaugh Formation, which overlay the Ukebung Formation, representing the lower section of Purlawaugh Formation|Monotonous succession of thinly bedded mudstones and siltstones, lenticular beds of clay-ironstone|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Dignams Siltstone|37357|||||Yes|Formation, beds|Formal|Resvd name published|Described|Margules Group|69897|||Katian|||inferred|deposition|Katian|||inferred|||||No|50234||Scott, M.|19-FEB-02|||Goulburn 1:100 000, Kingsdale 1:25 000 sheet areas. Perviously of Bendoc Group.|Grey to cream ripple laminated to medium-bedded siltstone with minor mudstone and quartzose fine-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Dilga Formation|27390|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Devonian||||deposition|Silurian||||||||No|43476|||||||||||N||17-JAN-23
Dingo Road Basalt Member|78493|||||Yes|Member, phase|Informal|Other new published name|Described|Comerong Volcanics|25853|||Upper Devonian||||eruption|Middle Devonian||||||||No|66768|||||||Basalt, with intercalated lacustrine sedimentary rocks, minor mafic tuff and lapilli tuff, sparsely amygdaloidal with amygdales filled with chlorite and quartz.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Dinoga Formation|29267|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Devonian||||deposition|Middle Cambrian|||||||NSW|Yes|41328|41328|Aitchison J.C. et al.|||27-FEB-91|In Central Block and Woodsreef Melange.|Siltstone; quartz and lithic wacke; minor mudstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Dirnaseer Gabbro|21669|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes|Olivine gabbro, troctolite, anorthosite, gabbro, norite|basic intrusive rock|||Y||17-JAN-23
Discovery Limestone|35865|||||Yes|Member, phase|Formal|Other new published name|Briefly described|||||Middle Cambrian||||deposition|Middle Cambrian||||||||No|23336||||||Parent probably Coonigan Formation.||carbonate sedimentary rock|||N||17-JAN-23
Djuan Tonalite|5547|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Triassic|234.8|8|isotopic, K/Ar|intrusion|Late Permian|263.7|.9|isotopic, Ar/Ar||||QLD|Yes|42525|30303|||Withnall, I.|20-MAR-08|DEFINITION CARD  rec'd March 2008. Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Ipswich 1:250k sheet area.|Tonalite, appinite, hornblendite.  Detailed lithology given in the UNIT DEFINITION section.|acid intrusive rock|||Y||17-JAN-23
Dochra Siltstone Member|26521|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Late Permian||||deposition|Late Permian||||||||No|43447||||||Lith desc added from GSNSW seamless geology 2023.|Micaceous siltstone forming benches in outcrop, with fucoidal markings resembling worm burrows on weathered bedding planes, and contains marine fossils.|siliciclastic sedimentary rock|||N||02-SEP-23
Docker Head Claystone Member|5553|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Banks Wall Sandstone|1065|||||||deposition|||||||||No|31886|||||||||||N||17-JAN-23
Doctor George Granite|23549|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mumbulla Suite|30468|Upper Devonian||||intrusion|Middle Devonian||||||||No|38320||B.W.Chappell|27-OCT-75||||Fine leucogranite|acid intrusive rock|||Y||17-JAN-23
Dodger Diorite|5556|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Boggy Plain Suite|2091|Lower Devonian||||intrusion|Late Silurian||||||||No|40882|||||||Hornblende-biotite granodiorite, tonalite, quartz monzonite, diorite; sporadic amphibolite xenoliths.||||Y||24-JUL-23
Dog Trap Creek Formation|23550|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Avon Subgroup|802|||Late Permian||||deposition|Late Permian||||||150||No|40872|44244|M.Lennox|20-MAR-85|||For use in Stroud-Gloucester Trough. To be used for sedimentary fm.only.|Cyclic succession of shale, siltstone and sandstone.|siliciclastic sedimentary rock||extensional continental backarc|N||02-SEP-23
Donaldson Coal Member, Lower|82550|||||Yes|Member, phase|Invalid|Other new published name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.Equivalent to the Whites Creek Coal Member. Probably a variation on Donaldson Seam.|Dull and bright-banded coal with sporadic stoney bands; carbonaceous shale, coaly shale, carbonaceous mudstone, brown soft claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Donaldson Coal Member, Middle|82551|||||Yes|Member, phase|Invalid|Other new published name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Probably a variation on Donaldson Seam.|Dull and bright-banded coal with sporadic stoney bands; calcite in cleats; carbonaceous shale with coaly laminae, carbonaceous mudstone, thin bed of laminated siltstone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Donaldson Coal Member, Upper|82552|||||Yes|Member, phase|Invalid|Other new published name|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Probably a variation on Donaldson Seam.|Dull and bright-banded coal with sporadic stoney bands; coaly shale, dark grey mudstone (sporadically carbonaceous), brown claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Doncaster Member|5593|||||Yes|Member, phase|Formal|Variation of published name|Defined|Wallumbilla Formation|19323|||Aptian||||deposition|Barremian|||||150|300|QLD|No|44406|45110|||||Eromanga & Surat Basins. Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Chinchilla 1:250k sheet area.|Mudstone, siltstone; minor quartz sandstone in part glauconitic, silty limestone, gypsum.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Donganelly Formation|36335|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Mount Fairy Group|26052|||Ludlow||||deposition|Wenlock||||||||No|50234||Pogson D.|20-AUG-01|||Goulburn 1:100 000 sheet area.|||||N||17-JAN-23
Donkey Gap Gabbro|5605|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42726||||||||basic intrusive rock|||Y||17-JAN-23
Donnellys Castle Leucomonzogranite|82408|Stanthorpe Monzogranite|38272|||Yes|Formation, beds|Formal|Other new published name|Described|||Ruby Creek Suite|82409|Middle Triassic|||||Middle Triassic||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pale pink, medium-grained, slightly porphyritic, leucocratic biotite monzogranite.|acid intrusive rock|||Y|I-type|18-AUG-23
Donovan Basic Complex|24250|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Upper Devonian|355|13|isotopic, Rb/Sr|minimum depositional age|Lower Devonian||||intrusion|||NSW|Yes|39028|40276|D.Wyborn|30-NOV-79|Russell, T.|14-SEP-82|Used on the Araluen 1:100 000 sheet.|Gabbro, quartz gabbro, granophyre|basic intrusive rock|||N||17-JAN-23
Doona Coal Member|77387|||||Yes|Member, phase|Informal|Variation of published name|Reserved|Trinkey Formation|18599|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||See also Doona Seam.|Coal: Typically 3-4m thick in Caroona area, dull and banded coal with thin beds and laminae of tuffaceous claystone throughout|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Doona Sandstone Member|5620|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Purlawaugh Formation|15676|||Upper Jurassic||||deposition|Middle Jurassic||||||3||No|35095||||||Not related to Doona Coal Member. Formerly of Ukebung Formation. Unclear if this unit has been dropped and absorbed into the Purlawaugh Formation, or is now a member of the Purlawaugh Formation [GSNSW considered this a Member of Purlawaugh Fm in 2013].|Dull grey to white, fine to medium-grained arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Doonbah Clay|5621|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40726|||||||||||N||17-JAN-23
Doonbara Formation|5622|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Miocene||||deposition|Oligocene||||||40||No|33820||||||Probably not in QLD? NSW uses this unit in the 2009 Koonenberry notes. Said to be Miocene to Pliocene in SA 2015 Wintinna 1:250k digital map sheet. See also misspelt Doonbarra Formation. 7 - 40m thick.|Alluvial, colluvial and residual clastics, commonly silicified or ferruginised. Ferruginous quartzose sandstone and granule conglomerate with maghemite pisolites.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Doone Member|23553|||||Yes|Member, phase|Formal|Resvd name published|Defined|Rast Group|23935|||Devonian||||deposition|Devonian||||||350|NSW|No|41394|41394|S.Trigg|29-OCT-82||||Arenite and granule-cobble conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Doongala Chert Member|39535|||||Yes|Member, phase|Formal|Resvd name published|Described|Abercrombie Formation|69898|||Darriwilian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||||No|61964||Colquhoun, G.|27-OCT-03|||To be used on 1:100 000 map sheet 8230. Within the Wagga Group. Formerly of Clements Formation, but Clements incorporated into, and superseded by the Abercrombie Formation in 2018. Age said to be based on graptolites and conodonts. Contains latest Darriwilian conodont assemblage of Pygodus serra-Periodon aculeatus.|Thin chert beds (up to 10m thick) which pass laterally into quartz sandstone turbidites and shale of undifferentiated Clements Fm. Forms rare outcrops + abundant scree of v. fractured chert; numerous conodonts, radiolarians.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Doonside Formation|5628|||||Yes|Formation, beds|Formal|Other new published name|Defined|Curtis Island Group|5093|||Mississippian||||deposition|Lower Devonian|||||2100|3600|QLD|No|38406|31659||||||Chert, jasper, mudstone, siltstone, lithic sandstone, tuff, limestone, and altered basalt.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Dooralong Shale|24252|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Narrabeen Group|13874|||Lopingian||||deposition|Lopingian|||||8|201|NSW|Yes|36042|39660|R.Uren|25-NOV-77|Hawke, J.|12-JUL-78||Interbedded siltstone and claystone, and fine to coarse-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Doradilla Formation|81170|Doradilla metasiltstone|79104|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Cobar Supergroup|27673|||Lower Devonian|||||Lower Devonian||||||||No|72296||||||Probably the 415.9+/-3.4 Ma age for Doradilla metasiltstone applies to this unit? Lithology description from GSNSW seamless geology 2023.|Granoblastic marble; complex skarn grading into well laminated calc-silicate and intercalated pelitic hornfels; dolomite and wrigglite skarn locally. Metasiltstone and intercalated fine grained meta quartz sandstone.||||N||28-SEP-23
Doradilla metasiltstone|79104|Doradilla sandstone|78381|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Lower Devonian||||deposition|Lower Devonian|415.9|3.4|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|69635||||||Informal name. North-western Lachlan Orogen. U-Pb SHRIMP zircon maximum depositional age. Sampled from drill core DDH DR20 (Aberfoyle), at the depth interval 268.05 to 269.6 m. May be equivalent to Cobar Supergroup and younger than Girilambone Group.|Sample: foliated and laminated metasiltstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Dormans Flat Granite|41585|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Triassic||||intrusion|Triassic||||||||No|63732||||||To be used on Warwick and Tweed Heads 1:250 000 map sheets, GSQ - map symbol Rgsf.   Also to be used on Queensland 1:1million geological map, National Maps Project. In Geology of Queensland 2013, p458. GS NSW changed this unit name to Dormans Flat Monzogranite in 2017. Unclear whether GSQ was consulted about this change.|Pale pinkish grey to pale reddish brown, fine grained, highly porphyritic, (allanite-titanite) biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Dormans Flat Monzogranite|82410|Dormans Flat Granite|41585|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Sailor Jack Supersuite|82412|Permian|||inferred||Permian|||inferred, intrusive relationship|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Intended to replace Dormans Flat Granodiorite. Unclear if GSQ accepts this name change.|Pale pinkish grey to pale reddish brown, fine-grained, highly porphyritic biotite-(hornblende) monzogranite. I-type.|acid intrusive rock|||Y|I-type|04-SEP-23
Dorrigo Mountain Complex|5642|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Sakmarian|295.5|3||intrusion|Pennsylvanian||||||||No|31806|||||||Microdiorite, microgranite; other minor intrusives and plutons of unknown affinity|acid intrusive rock|||Y|I-type|24-AUG-23
Dorroughby Tuff Member|5644|Dorroughby Tuff|30762|||Yes|Member, phase|Formal|Variation of published name|Mentioned|Nimbin Rhyolite|14148|||||||eruption|||||||||No|43881|||||||||||N||17-JAN-23
Double Peak Volcanics|23556|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Lochkovian||||eruption|Lochkovian|||||||NSW|No|37772|41126|E.Scheibner|23-JUL-80||||Siltstone, shale, fine-grained sandstone, felsic volcaniclastic rocks.|acid volcanic rock|||N||11-SEP-23
Doubtful River Gabbro|5654|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Ordovician||||intrusion|Upper Ordovician|445|10|isotopic, K/Ar|||||No|45147|||||||Gabbro, diorite, metabasic intrusives, pyroxenite|basic intrusive rock|||Y||17-JAN-23
Doughboy Volcanics|82481|Doughboy Basalt|5657|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Priabonian|37.3|1.4|isotopic, K/Ar||Ypresian|48.3|.45|isotopic, Ar/Ar|||||No|73581||||||Used in GSNSW seamless geology dataset 2021.|Basalt flows, minor basaltic volcaniclastic rocks. Basaltic vent and breccias includes alkali dolerite, basaltic diatreme breccia, all undifferentiated.|basic volcanic rock|||N||29-MAR-23
Douro Group|5668|Douro Volcanics|5674|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Ludlow|||inferred, overlying unit||Wenlock|432||inferred, intrusive relationship||||NSW|No|30731|35070|||||Used on the new GOULBURN 1:250 000 sheet (2006) also. Includes Hawkins Volcanics, age: 433.7 Ma.|Felsic ignimbrites and volcaniclastics; terrestrial and marine deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Dowd Formation|24929|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Pridoli||||deposition|Pridoli||||||720|NSW|No|43476|40328||||||Shale, siltstone, fine-grained sandstone, lithic sandstone, rhyolite, calcarenite.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Downderry Limestone Member|5685|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ballingoole Limestone|28166|||Katian||||deposition|Katian||||||7.5|NSW|No|33063|33063|||||Age determined by fossil assembleges.|Grey weathering to brown calcarenite, massive to bedded, with angular quartz grains and occasional lithic fragments. Shallow-water, fossiliferous calcarenite debris infilling probable submarine channels.|siliciclastic sedimentary rock|||N||17-JAN-23
Downs Rhyodacite Member|37910|Downs Rhyodacite|30056|||Yes|Member, phase|Formal|Resvd name published|Defined|Clifden Formation|4147|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|To be replaced by 'The Downs Rhyodacite Member' [GSNSW May-2011]|||||N||17-JAN-23
Doyalson Formation|5686|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34270|||||||||||N||17-JAN-23
Doyles Creek Subgroup|5688|Doyles Creek Sub-Group|5687|||Yes|Subgroup|Formal|Unknown or process pending|Described|Wollombi Coal Measures|20362|||Late Permian|||||Late Permian||||||60||No|41010|||||||||||N||17-JAN-23
Doyles Hill Coal Member|80147|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Doyles River Road Serpentinite|75835|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|65317||||||Probably accidentally 'formalised'. Only used in figure for serpentinite near Doyles River Road.  No description.|||||N||17-JAN-23
Dr George Mountain Granite|5689|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Mumbulla Suite|30468|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Drake Volcanics|28513|Drake volcanics|5698|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Wandsworth Volcanic Group|29113|||Guadalupian|264.4|2.5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Guadalupian||||magmatic crystallisation||1500||No|43385||||||DEFINED as Drake Andesite in 79/04313. See also Cataract River Formation. Situated c. 42 km southeast of Tenterfield.|Complexly interbedded rhyodacitic to andesitic flows, tuffs, breccias and volcanolithic sediments; including porphyritic lava, rhyolitic to andesitic crystal-lithic tuff, breccia and agglomerate. Also epiclastic sediments and subvolcanic intrusives.|acid volcanic rock|intermediate volcanic rock|continental margin arc|N||17-JAN-23
Dramoore Granodiorite|21693|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Cooma Suite|4573|Late Silurian||||intrusion|Late Silurian||||||||No|22815||Lewis P.C.|07-APR-94|||Bega 1:250 000 sheet area|Foliated granodiorite and tonalite|acid intrusive rock|||Y||17-JAN-23
Drik-Drik Formation|27392|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Tamworth Group|17757|||Pragian||||deposition|Lochkovian||||||550||No|43400|43400|||||See also Drik Drik Formation.|Arenites, argillites, haematitic breccias, minor siltstones and calcareous siltstone, keratophyre, conglomerate and crystalline limestone lenses and limestone breccia impregnated with haematite of Nemingha Limestone.|siliciclastic sedimentary rock||island arc|N||17-JAN-23
Drildool beds|32375|Drildool Beds|39319|||Yes|Formation, beds|Informal|Other new published name|Described|||||Barremian||||deposition|Hauterivian||||||280||No|12597||||||Nyngan 1:250 000 sheet area. Great Australian Basin. Lateral equivalent of Bungil Formation. Coonamble Embayment. Tight aquitard and partial aquifer.|Grey, fine grained lithic sandstone, laminated interbedded and intermixed with siltstone, mudstone and minor thin coal seams. Rare mudstone breccia. Sporadic pebbles, siderite nodules and fragments of mudstone and coal.|siliciclastic sedimentary rock|||N||17-JAN-23
Dripstone Formation|30526|Dripstone Group|5704|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mumbil Group|13411|||Llandovery|436|4||eruption|Llandovery||||||545||No|23225|23170|Scott M.|25-SEP-96|||Wellington &/or Euchareena 1:100 000 sheet area.|Rhyolitic to felsitic tuff and tuffaceous sandstone; siltstone; mafic to felsic lava; limestone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Drogheda Volcanics|29673|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Crudine Group|4970|||Middle Devonian||||eruption|Lower Devonian||||||500|NSW|No|43639||Wyborn D. for Lachlan NGMA.|04-SEP-95|||Originally reserved to  replace Kowmung Volcaniclastics in Bathurst 1:250 000 sheet area; however, does not appear to have done so [Dec/2005 PP]. Type section along tributary of Tuglow River.  May be genetically related to the Bindook Complex.|Consists of a succession of rhyolite ignimbrite and pyroclastic surge and fall deposits.|acid volcanic rock|||N||17-JAN-23
Drouin Conglomerate Member|73366|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Meryula Formation|11741|||Lower Devonian||||deposition|Late Silurian||||||||No|70941||Burton, G.|22-MAY-07|||For use on map sheet 8135; nearest town is Coolabah. To be published: 2008? Explan.Notes for Sussex abd Byrock 1:100K map sheets, GSNSW. Within the Kopyje Group (Cobar Supergroup).|Massive to rarely bedded matrix- to clast-supported conglomerate, pebbly sandstone and sandstone; minor chert and vein quartz|siliciclastic sedimentary rock|||N||17-JAN-23
Dry Creek Granodiorite|82416|Rocky Creek Granodiorite|77396|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Boxwell Supersuite|69437|Late Permian|||inferred||Late Permian|257.3|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Replaces Rocky Creek Granite (NSW) and Rocky Creek Granodiorite.|Medium- to coarse-grained, equigranular, quartz-poor biotite-hornblende granodiorite to quartz monzodiorite - quartz diorite. I-type.|acid intrusive rock|||Y|I-type|20-AUG-23
Dryden Sandstone Member|23562|||||Yes|Member, phase|Formal|Resvd name published|Defined|Burthong Formation|3177|||Devonian||||deposition|Devonian||||||200|NSW|No|41528|41528|Trigg S.|05-OCT-82|||Lithology description from GSNSW seamless geology 2023.|Massive to parallel-laminated and minor cross-bedded lithic-quartz to quartz-rich medium sandstone and minor feldspathic, medium- to coarse-grained sandstone, interbedded with poorly outcropping siltstone.|siliciclastic sedimentary rock|||N||28-SEP-23
Drysdale Conglomerate Member|24931|Drysdale Conglomerate|5731|||Yes|Member, phase|Formal|Variation of published name|Redefined|Chesney Formation|3959|||Lochkovian||||deposition|Lochkovian|||||||NSW|Yes|29621|43774|Baker C.J., Schmidt B.L., Sherwin L.||Bryan, J.H.|27-OCT-75||Conglomerate, pebbly sandstone, sandstone and sandstone with minor siltstone and claystone. The pebbles and cobbles in the conglomerate are mainly quartzite, chert, sandstone and vein quartz with minor siltstone and claystone.||||N||03-AUG-23
Dubbo Volcanics|83465|Dubbo basalts|69851|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Serravallian|12.3|.3|isotopic, K/Ar||Burdigalian|20|.8|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Dominantly high potassium (high-K) alkali olivine basalts and transitional to tholeiites with uncommon hawaiite and rare mugearites. High potassium (high-K) trachyte.|basic volcanic rock|||N||17-JAN-23
Duckhole Coal Member|77591|||||Yes|Formation, beds|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||Sydney Basin. This name revived by GSNSW 14-JUN-2012.|Coal: dull and bright bands, rare stoney bands, thin shale beds - coaly to carbonaceous, grey hard sideritic mudstone, carbonaceous mudstone beds|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Duckmaloi Granite|5750|||||Yes|Formation, beds|Formal|Other new published name|Described|||Oberon Suite|31534|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Bathurst 1:250 000 sheet area. Intrudes Mumbil Group.|Grey, coarse-grained biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Duddo Limestone|5752|Duddo limestone|5754|||Yes|Formation, beds|Formal|Other new published name|Defined|Murray Group|13544|||Langhian||||deposition|Chattian||||||130|VIC|No|70961|42966|||||Of Lawrence (1966). Retained as a formal unit through the Lawrence (1975) and Lawrence and Abele(1988) stratigraphic name revisions where it overlay Netherby Marl. It appears to have been excluded from the Murray Supergroup stratigraphic reclassification by Lukasik and James (1998); now reinstated in the Murray Group in South Australia but may have been replaced by Victoria? No; included in Murray Group in Vic as well (VandenBerg 2009).|Marine: calcarenite, bryozoal limestone; prodigiously fossiliferous|carbonate sedimentary rock|||N||17-JAN-23
Dudley Coal|5755|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|39292||||||This Formation was downgraded to the informal Dudley coal seam instead, but original name revived ~2015.Updated from GSNSW seamless geology dataset 2021. To the west, this unit forms a part of the West Borehole Coal. To the north and east this unit forms a part of the Young Wallsend Coal.|Coal bands range in thickness from 2.8-7.3 m.|organic rich sedimentary rock|||N||17-JAN-23
Dukes Basalt|39631|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|24087|||||||Composed of 2 sub-lithologies: massive basalt, and pillow basalt.|basic volcanic rock|||N||17-JAN-23
Dulladerry Volcanics|29509|Dulladerry Rhyolite|5787|||Yes|Formation, beds|Formal|Variation of published name|Defined|Rocky Ponds Group|32475|||Frasnian|376|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Frasnian|376|4|isotopic, U/Pb-Pb/Pb ion probe|||2300|NSW|No|43494|23214|||||Used in Narromine and Bathurst 1:250 000 sheet areas. 1993 ref says includes Lochkovian microvertebrate fauna . Originally assigned an Early Devonian age but now (2006) considered to be Middle Devonian. (see also Dulladerry Rhyolite), and more recent SHRIMP dating (2013)suggests Late Devonian age.|Quartz-K-feldspar phyric, welded rhyolitic ignimbrite, rhyolite lavas, volcanic breccia, basalt; minor andesite, volcaniclastic sandstone, siltstone, conglomerate.|acid volcanic rock|basic volcanic rock||N|A-type|17-JAN-23
Duluth Gabbro|37359|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|24037|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Dumboy-Gragin Leucosyenogranite|82418|Dumboy-Gragin Granite|5798|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Triassic|||inferred||Late Permian|252|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||GSNSW seamless geology 2023 lists a minimum age of 243.20+/-3.7 Ma for this unit, from ANU, but no published reference.|White to grey, coarse- to fine-grained, seriate to porphyritic, leucocratic syenogranite and alkali feldspar granite with abundant miarolitic cavities, and granophyric intergrowths. I-type.|acid intrusive rock|||Y|I-type|21-AUG-23
Dumbudgery Creek Complex|82419|Dumbudgery Creek Granodiorite|27393|||Yes|Formation, beds|Formal|Variation of published name|Described|||Clarence River Supersuite|36112|Lower Triassic|249||inferred||Late Permian|255|1|inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Unclear why GSNSW seamless shows this unit as Middle Triassic when geochron indicates Permian age.|An intrusive complex comprising a diverse range of intermediate to felsic, heterogeneous, hybrid, low-K granites; several sinuous zones and dykes of mafic rocks; numerous country rock inclusions and roof pendants. I-type. Lithologies very detailed.|acid intrusive rock|basic intrusive rock||Y|I-type|16-OCT-23
Dummy Creek Conglomerate|25886|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wandsworth Volcanic Group|29113|||Late Permian||||deposition|Cisuralian|||||||NSW|No|34026|34350||||||Lithic conglomerate, coarse sandstone, massive mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Duncans Creek Suite|39092|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Clarence River Supersuite|36112||||||||||||||No|23799||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. Of Shaw and Flood (1981), and Bryant and others (1997).|||||Y||17-JAN-23
Duncans Creek Trondhjemite|5803|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Duncans Creek Suite|39092|Middle Triassic|249|2.9|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Permian|252|3.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|30911||||||Previously of the Nundle Plutonic Suite.  Early Palaeozoic in age. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.|Trondhjemite.|acid intrusive rock|||Y|I-type|20-AUG-23
Dunchurch Formation|5806|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crudine Group|4970|||Lower Devonian|411|4||deposition|Lower Devonian|411|4|isotopic, U/Pb-Pb/Pb ion probe|||1800|NSW|Yes|29903||Gemuts I.|14-SEP-72|||In Bathurst 1:250 000 sheet area.  First included in the Burraga Beds (now Burraga Group). Includes an unnamed metadacite unit. Age: 411 +/- 4Ma (SHRIMP U/Pb zircon). Approved - copied from xerox sent by NSW Stratigraphic Nomenclature Sub-Committee.|Dark grey, very thickly bedded, massive to normal graded, fine-grained to pebbly, crystal-rich, dacitic to andesitic volcaniclastic sandstone, interbedded grey siltstone and shale.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Dundee Rhyodacite|5829|Dundee Ignimbrite|5825|||Yes|Formation, beds|Formal|Other new published name|Fully described|Wandsworth Volcanic Group|29113|Dundee Suite|74026|Lower Triassic|246||isotopic, Rb/Sr|eruption|Lopingian|257.6|2.5|isotopic, U/Pb-Pb/Pb ion probe|||2000||No|33476||||||Min Age: Early Triassic, Max Age: Late Permian; NSW Geol. Surv. U-Pb zircon sample submitted. pers. comm. Cec Murray, GSQ, 09-NOV-2005.  Intruded by the Stanthorpe Monzogranite. Formerly Dundee "Adamellite Porphyrite", and "Blue Granite".|Blue grey crystal rich ignimbritic rhyodacite; with crystals of quartz, plagioclase, biotite, hornblende, clinopyroxene, and minor K-feldspar and orthopyroxene.|acid volcanic rock||continental margin arc|N|I-type|19-OCT-23
Dundee Suite|74026|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||Dundee Supersuite|73899||||||||||||||No|||Blevin, Bultitude & Champion|10-DEC-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Dundurrabin Granodiorite|24937|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Dundurrabin Suite|73905|Permian||||intrusion|Permian|||||||NSW|Yes|31806|35264|Korsch R.J.||Hawke, J.|16-AUG-76|Formerly of Hillgrove Suite.  Now part of Herries Supersuite.|Biotite granodiorite, leucogranite, commonly foliated with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y||17-JAN-23
Dunedin Park Sand Member|5838|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Lake Victoria Sand|10073|||Holocene||||deposition|Holocene|||||||NSW|Yes|30996|30996|||||Check for Defn Card.|||||N||17-JAN-23
Dunedoo Formation|5840|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Permian||||deposition|Late Permian||||||103||No|31326|23170||||||Consists of basal conglomerate overlain by whitish, coarse and fine-grained feldspathic sandstone and siltstone, shale, minor black carbonaceous shale and thin coal seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||02-SEP-23
Dungarubba Clay|34758|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|22892||||||Age: 250 000yrs Bp.|||||N||17-JAN-23
Dungay Group|24256|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||||||||||||||NSW|Yes|36961||H.J.Harrington|22-MAY-81|Russell, T.|13-JUL-81||||||N||17-JAN-23
Dungeree Volcanics|5845|||||Yes|Formation, beds|Formal|Other new published name|Defined|Tannabutta Group|30153|||Pridoli|415|9||eruption|Wenlock|419|9||||1000||No|43476|23170||||||Consist of greenish-grey almost aphanitic rhyolite and white altered rhyolite.; brecciation is common.|acid volcanic rock|||N||05-SEP-23
Dunhill Bluff Limestone Member|24258|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden. Reserved in Central Register, BMR Canberra (Ref. 80/1569).||carbonate sedimentary rock|||N||17-JAN-23
Dunkeld Granite|5846|Dunkeld adamellite|5847|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Bathurst Supersuite|31449|Pennsylvanian|301||inferred, isotopic correlation|intrusion|Mississippian|340||inferred, isotopic correlation|||||No|42726||||||Formal name not intended in Chappell et al (1991).|Coarse grained porphyritic felsic granite|acid intrusive rock|||Y||17-JAN-23
Dunmoogin Formation|26531|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Crudine Group|4970|||Devonian||||deposition|Devonian||||||500||No|43476|||||||In the Windeyer area this consists of laminated siltstone, minor sandstone beds in places.|siliciclastic sedimentary rock|||N||17-JAN-23
Dunoon Dacite|24938|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Hyandra Creek Group|8619|||Lochkovian||||eruption|Lochkovian||||||400||No|43476|23170||||||Dacite, rhyolite.|acid volcanic rock|||N||17-JAN-23
Dunskeig Granite|36473|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||intrusion|||||||||No|23550||||||||acid intrusive rock|||Y||17-JAN-23
Dural Sandstone Member|77582|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Loddon Sandstone|34000|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after  Hill M.|14-JUN-12|||Sydney Basin.|Medium-grained lithic sandstone, minor siltstone and claystone, rare conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Durallie Road Formation|23566|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Dewrang Group|24917|||Late Permian||||deposition|Cisuralian||||||250||No|40872|44244|M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Basal pebbly conglomerate dominated by porphyritic felsic volcanic clasts; massive, thickly bedded lithic sst., mudstone.|siliciclastic sedimentary rock||extensional continental backarc|N||02-SEP-23
Durandal Granite|30352|Durandal Adamellite|5871|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bathurst Suite|31450|Carboniferous|305|10||intrusion|Carboniferous|318|17||||||No|43641||||||Bathurst 1:250 000 sheet area. Supersedes Durandal Adamellite. See also misspelling - Duronal Granite.|Pink, biotite-poor granite|acid intrusive rock|||Y|I-type|17-JAN-23
Duri Andesite Member|5873|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|32286||||||||intermediate volcanic rock|||N||17-JAN-23
Duroux Monzogranite|82428|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Medium- to coarse-grained, equigranular, biotite-leucogranite, microgranite and aplite; heavily weathered.|acid intrusive rock|||Y|I-type|24-AUG-23
Durrallie Formation|38300|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Late Permian||||deposition|Late Permian||||||||No|23623||||||Possibly misspelt - see Durallie Road Formation.|||||N||17-JAN-23
Duxford Member|5881|Duxford member|5882|||Yes|Member, phase|Formal|Unknown or process pending|Described|Namoi Formation|13721|||Mississippian||||deposition|Mississippian||||||||No|43407||||||Originally part of Martindale Mudstone (which was correlated with the Namoi Mudstone).|Lithic sandstone, polymictic conglomerate, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Dyamberin beds|5883|Dyamberin Beds|25889|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Permian||||deposition|Permian||||||||No|42866||||||See definition for Beds.|Lithic wacke, siltstone and mudstone, minor diamictite, and felsic volcanics.|siliciclastic sedimentary rock|||N||17-JAN-23
Dynamite Tank Granodiorite|70522|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tibooburra Suite|73401|Ludlow|425.7|2.2||intrusion|Ludlow|425.7|2.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|66920|66623|Brown, R. (UNE/NSW Minerals)|01-JUN-06|||To be used on map sheet 9239; nearest town is Tibooburra. To be included in the newly reserved Tibooburra Suite.|Massive, medium-grained, quartz-feldspar-biotite-hornblende granodiorite with minor mafic enclaves; lesser massive, equigranular plagioclase-amphibole diorite with subordinate biotite, K-feldspar and quartz.|acid intrusive rock|||Y||17-JAN-23
Dyrring Formation|5888|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32671|||||||||||N||17-JAN-23
Eagleton Volcanics|5895|||||Yes|Formation, beds|Formal|Other new published name|Defined|Gilmore Volcanic Group|7238|||Visean|||inferred, lithostratigraphic correlation|eruption|Visean|||inferred, lithostratigraphic correlation|||||No|44254|44254|||||Age from Gilmore Volcanic Group. Lithology updated from GSNSW seamless geology dataset 2021.|Massive toscanite and dellenitic coherent volcanics and ignimbrite units. Acid to intermediate lithic, crystal and vitric tuff.||||N||02-JUN-23
East Lake Suite|73913|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||Hillgrove Supersuite|67847||||||||||||||No|||Blevin, Bultitude & Champion|20-NOV-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
East Maitland Coal Measures|5903|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43491||||||||organic rich sedimentary rock|||N||17-JAN-23
Easter Monday Formation|73552|Easter Monday beds|21727|||Yes|Formation, beds|Formal|Resvd name published|Defined|Warratta Group|73409|||Ordovician|||inferred|deposition|Late Cambrian|497|2.6|isotopic, Pb/Pb isochron age|deposition|||NSW|No|66921|66623|Gilmore, P. (GNSW), Greenfield, J. (GNSW)|25-JUN-07|||To replace the Easter Monday beds on new KOONENBERRY 1:500 000 map sheet. Definition states that this unit could be considered part of the Thomson Orogen. Age: 497 +/- 2.6 Ma, SHRIMP II, Greenfield 2010b (RefID 69002, 2010). Age derived from tuffaceous mudstones.(RefID 69001, 2008)|Phyllitic sandstone, metasiltstone, and siliciclastic metasandstone, minor conglomerate and calcareous sandstone; regionally metamorphosed to lower greenschist facies.|metasedimentary siliciclastic rock|||N||17-JAN-23
Eastern Branch Member|5907|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Parrabel Beds|27218|||||||deposition|||||||||No|40590||||||||carbonate sedimentary rock||extensional continental backarc|N||17-JAN-23
Eastern Limestone|5917|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41863||||||||carbonate sedimentary rock|||N||17-JAN-23
Eastlake Monzogranite|82430|East Lake Monzogranite|41055|||Yes|Formation, beds|Formal|Variation of published name|Described|||Hillgrove Supersuite|67847|Permian|||inferred||Cisuralian|292.1|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Spelling of name corrected in 2017. Note geochron date may relate to Shallow Lagoon Monzogranite rather than this unit. Used in GSNSW seamless geology dataset 2021.|Plagioclase-rich biotite monzogranite; amphibole bearing variants; weakly to moderately deformed.|acid intrusive rock|||Y|S-type|17-JAN-23
Eastons Arm Rhyolite Member|77633|Eastons Arm Rhyolite|37300|||Yes|Member, phase|Reserved|Variation of published name|Briefly described|Clifden Formation|4147|||Carboniferous||||eruption|Carboniferous||||||||No|||Greenfield, J. (GSNSW)|12-JUN-12|||Junior synonym of Peri Rhyolite Member?|Rhyolite and ignimbrite|acid volcanic rock|||N||17-JAN-23
Eastwood Granite|36472|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||intrusion|||||||||No|23550||||||||acid intrusive rock|||Y||17-JAN-23
Ebor Volcanic Complex|69440|Ebor volcanics|5939|||Yes|Group, Suite|Reserved|Reserved|Reserved|||||Cenozoic||||eruption|Cenozoic||||||||No|||Mark Dawson (NSWGS)|11-JUL-05|||Name from unpublished NSWGS GIS dataset, 2005|Basalt flows, minor basaltic volcaniclastics; basaltic vent and breccias; includes alkali dolerite, basaltic diatreme breccia|basic volcanic rock|||N||17-JAN-23
Echo Hills Formation|69441|||||Yes|Formation, beds|Formal|Resvd name published|Described|Manning Group|11186|||Kungurian||||deposition|Asselian||||||||No|68005||Mark Dawson (GSNSW)|11-JUL-05|||From unpublished NSWGS GIS dataset, 2005. Same unit as Echo Sandstones which is published (RefID: 61793). Uncertain which is in current use?|Siltstone and sandstone, coarse conglomerates and interbedded shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Eckersley Formation|5944|||||Yes|Formation, beds|Formal|Other new published name|Described|Sydney Subgroup|17602|||Changhsingian||||deposition|Wuchiapingian|252.6|.3||||||No|34060||||||Lith desc from GSNSW seamless geology 2023.|Sandstone, siltstone, claystone and coal.||||N||30-AUG-23
Edderton Coal Member|5949|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Sydney Basin|Coal: dull thinly banded, minor bright bands, fusainous, minor calcite; carbonaceous shale, light brown waxy claystone|organic rich sedimentary rock|||N||17-JAN-23
Edgeworth Tuff Member|5970|Fern Valley Tuff Member|6596|||Yes|Member, phase|Formal|Other new published name|Briefly described|Glebe Formation|7326|||Lopingian|||inferred, lithostratigraphic correlation|eruption|Lopingian|||inferred, lithostratigraphic correlation|||||No|37083||||||Formerly of Highfields Formation, Cardiff Sub-Group/Glebe Formation, Adamstown Subgroup. This Member dropped in 1999, but continued to be used, at least informally, as a member of the Adamstown Formation. See also Edgeworth tuff. Edgeworth Tuff Member reinstated when Glebe Formation reinstated, probably ~2015.  Used in GSNSW seamless geology dataset 2021. May include Fern Valley Tuff, or be another younger tuff?|Tuff, shale, sandstone and polymictic conglomerate.|igneous volcanic rock|siliciclastic sedimentary rock||N||14-AUG-23
Edgeworth tuff|72984|Edgeworth Tuff Member|5970|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Adamstown Formation|105|||||||eruption|||||||||No|62033|||||||||||N||17-JAN-23
Edinboro Formation|29505|Edinboro|21730|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Canangle Subgroup|3442|||Famennian||||deposition|Famennian||||||166||No|43642||C.Killick|08-AUG-84|||For use in Bathurst 1:250 000 sheet area. Originally reserved as Edinboro by Colin Killick in 1984. NLR 1991. Name revived by Lachlan NGMA Project.|Fine-grained arenite and red mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Edinglassie Coal Member|26532|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942|||||||Dull & bright finely interbanded coal, fine fusainous traces and penny bands, minor calcite; light brown waxy claystone with carbonaceous plant fossil traces, carbonaceous shale|organic rich sedimentary rock|||N||17-JAN-23
Edithvale Formation|39340|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian|||||||NSW|Yes|61964||Meakin, S.|10-OCT-03|||1:100 000 map sheet 8230. Thickness: >200m.|Poorly sorted pebbly sandstone, polymictic conglomerate, lithic sandstone, sandstone and siltstone; planar and trough cross bedded. No fossils.|siliciclastic sedimentary rock|||N||17-JAN-23
Ednas Gneiss|24260|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rantyga Group|70113|||Statherian|||||Statherian|1710|||||2500|NSW|Yes|46598|42897|Stevens B.P.J.|10-JUN-86|NSW SNSC|27-FEB-91|Briefly described in Ref. GOLD1687,  p302. Within the Willyama Supergroup.|Quartz-albite-magnetite gneiss, sodic plagioclase-quartz-magnetite rock, minor albite-hornblende-quartz rock, minor quartzo-feldspathic composite gneiss.|foliated metamorphic rock|||N||17-JAN-23
Edols Conglomerate|24944|Edols Sandstone""|38915|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Derriwong Group|5403|||Devonian||||deposition|Silurian||||||200||No|36066||||||Formerly considered to include the rocks now known as Manna Conglomerate (of the Ootha Group) by Scott (in Lyons and Wallace 1999).|Polymict conglomerate and massive medium-grained quartz and lithic sandstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Edwardstown Tonalite|79401|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Late Cambrian|||||Late Cambrian|501.2|2.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|71708||Bruce, M. (GSNSW)|08-APR-16|||Map Sheet: 8527 Tumut 1:100k, SI55-14 Wagga Wagga 1:250k.The tonalite is an allocthonous body within the Jackalass Slate and is exposed in a cutting along Gocup Road approximately 1.5 km north of the junction with Edwardstown Road. In hand specimen, the rock is a deeply weathered, medium-grained, greeny-grey, quartz-bearing tonalite. In thin section, the tonalite is dominated by euhedral to subhedral sericitised feldspar crystals (65-70%) with patchy carbonate alteration, and unaltered quartz (15-20%). The remainder is made up of ferromagnesian minerals - completely altered to chlorite +/- carbonate; accessory apatite, rare zircon, and Fe-Ti oxides. To be published: Manuscript has been submitted (8/4/2016) to the Australian Journal of Earth Sciences and if accepted will undergo the peer review process.|Deeply weathered, medium grained, greeny grey, quartz bearing tonalite. Euhedral/subhedral sericitised feldspar (65-70 vol%), patchy carbonate alteration, quartz (15-20 vol%). Minor altered ferromag. minerals; accessory apatite.|acid intrusive rock|||Y||17-JAN-23
Efflux Siltstone Member|34598|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Frome Hill Formation|6926|||Lochkovian||||deposition|Pridoli||||||170||No|22842|||||||Poorly bedded calcareous, siliceous and sandy shale, siltstone, chert and very fine-grained sandstone. Fossiliferous sandstone grading to shale and white crinoidal mudstone locally.|siliciclastic sedimentary rock|||N||17-JAN-23
Egan Peaks Monzogranite|76979|Egan Peaks Adamellite|21733|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Jingo Creek Suite|31530|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Biotite monzogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Egebek pegmatite|6004|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39652|||||||||||Y||17-JAN-23
Eight Foot Six Inch Bed|35104|||||Yes|Bed|Informal|Other new published name|Mentioned|Victoria Tunnel coal seam|35119||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Eight Mile Creek beds|24945|Eight Mile Creek Beds|6007|||Yes|Formation, beds|Informal|Variation of published name|Described|Wild Ash Group|82703|||Lopingian|||inferred|deposition|Cisuralian|||inferred|||||No|39252||||||Previously of Wildash Group.|Felsic, intermediate dacitic to basaltic volcanicrocks and pyroclastics; siliceous epiclastic sandstone, siltstone, conglomerate, pebbly lithic arenite and mudstone.|medium-coarse grained siliciclastic rock|igneous volcanic rock|extensional continental backarc|N||17-JAN-23
Ekersley Formation|6020|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29944|||||||||||N||17-JAN-23
El Capitan Leucitite|83204|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Byrock Leucitite Suite|83664|||Burdigalian|17|.2|inferred, geological correlation||Burdigalian|17.9|.3|isotopic, Ar/Ar, step heat|||||No|||||||Used in GSNSW seamless geology dataset 2021.Of Byrock Leucitite Suite.  Earlier K-Ar dates provided age contraints between 16.8 - 12.2 Ma. These dates are considered unreliable in favour of modern Ar-Ar dating which precisely places the volcanism between 17.9 - 17.0 Ma.|Olivine-bearing vesiculated leucitite lava flows, plugs and minor scoria and volcaniclastic rocks.|foid-bearing volcanic rock|||Y||17-JAN-23
Elby Glen Station serpentinite|75831|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name. Located within western margin of Nthn Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Elby Glen Station Serpentinite in figs.|||||N||17-JAN-23
Elderslie Formation|6045|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Branxton Subgroup|2501|||Permian||||deposition|Permian||||||||No|43385|||||||Includes tuffaceous siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Eleebana Formation|6050|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Moon Island Beach Subgroup|12215|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||Of Moon Island Beach Subgroup, Newcastle Coal Measures. Included Bolton Point Conglomerate Member, Chain Valley Coal Member, Awaba Tuff Member. This name was dropped [1999]. Apparently reinstated when original Moon Island Beach Subgroup reinstated (2015): RefID 70647. Used in GSNSW seamless geology dataset 2021.|Conglomerate, sandstone, siltstone, claystone, coal and tuff.|siliciclastic sedimentary rock|||N||02-SEP-23
Ellenborough Volcanics|21740|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Devonian||||eruption|Frasnian||||||2000||No|22736|22736|Roberts J.|06-SEP-93||||Basaltic and andesitic massive flows and rare pillow lava and breccia with intercalations of thinly bedded to laminated mudstone, siltstone, sandstone and ash-tuff|basic volcanic rock||forearc|N||17-JAN-23
Ellenden Granite|25893|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Thurralilly Suite|75928|Late Silurian||||intrusion|Late Silurian|423.4|3.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|12185|30735|||NSW SNSC|20-JUN-76|Age is indistinguishable from the Woodlawn Volcanics and the leucogranite phase of the Lockhart Igneous Complex. Shallow-level intrusions. Previously said to be of Ellenden Suite.|Leucocratic, medium-grained, equigranular, biotite+/-muscovite granite with a marginal phase of fine- to medium-grained, leucocratic, porphyritic, granite and microgranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Ellenden Suite|31573|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian|||||Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Ellersley Formation|32393|Ellersley Spilite|6090|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hyandra Creek Group|8619|||Lochkovian||||deposition|Lochkovian||||||500||No|23170|23170|||||Dubbo 1:250 000 sheet area.|Trachylatite.|intermediate volcanic rock|||N||17-JAN-23
Ellerslie Granodiorite|6092|Wondalga-Ellerslie granite""|20426|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Ellerslie Suite|31635|Late Silurian||||intrusion|Late Silurian||||||||No|37529||||||Also supersedes Ellerslie Granite.|I-type, mafic, unfractionated granodiorite|acid intrusive rock|||Y||17-JAN-23
Ellerslie Suite|31635|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian|||||Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Elliots Shale Member|6102|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Kohinoor Volcanics|27175|||||||deposition|||||||||No|36413||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Ellismayne Siltstone Member|77391|||||Yes|Member, phase|Reserved|Reserved|Reserved|Trinkey Formation|18599|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12||||Carbonaceous siltstone and claystone, siltstone, claystone and sandstone|fine grained siliciclastic rock|||N||17-JAN-23
Elmside Formation|26537|||||Yes|Formation, beds|Formal|Other new published name|Defined|Hattons Corner Group|8145|||Lochkovian|||biozone|deposition|Pridoli|||biozone||62|85|NSW|No|31852|68592|||||Formerly of the Barambogie Group, now included in the Hattons Corner Group (2003). Includes limestone lenses that probably correspond to the ¿Upper Trilobite Bed¿ (Mitchell 1886).|Medium- to thin-bedded quartz-lithic sandstone, mudstone; algal limestone lenses in mudstone occur.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||05-SEP-23
Elmswood Ignimbrite Member|70482|Elmswood|36742|||Yes|Member, phase|Formal|Resvd name published|Defined|Seaham Formation|16708|||Mississippian||||intrusion|Mississippian|||||15|||No|62095|62095|||||See also the abbreviated versions: Elmswood Ignimbrite and Elmswood Member. Age: 326.4+/-2.6Ma.|Slightly welded, grey to purple ignimbrite in lower section; upper part is unwelded, beige to brown and of finer composition.|acid volcanic rock||forearc|N||02-JUN-23
Elsmore Leucomonzogranite|82442|Elsmore Granite|6114|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Triassic|||inferred||Late Permian|250.3|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|White, medium- to coarse-grained, seriate to porphyritic leucomonzogranite to leucosyenogranite, with extensive greisenisation and silicification in parts. Pervasively altered. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Elura Limestone|72759|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|61907||||||||carbonate sedimentary rock|||N||17-JAN-23
Elura Limestone Member|82205|Elura Limestone|72759|||Yes|Member, phase|Formal|Variation of published name|Defined|Brookong Formation|21339|||Lochkovian|||inferred, biostratigraphic correlation|deposition|Pridoli|||inferred, biostratigraphic correlation|deposition|||NSW|Yes|73143||||Gilmore, P., NSW Subcommission convenor|01-FEB-21|Proposed publication: Zhen, Y.Y. & Fitzherbert, J., 2021. Lochkovian (Early Devonian) corals and conodonts from the Elura limestone Member, north of Cobar in central-western New South Wales. Quarterly Notes of the Geological Survey of New South Wales, in press.|It consists of limestone with minor intercalated dark calcareous mudstone and siltstone of reefal, back reefal and out-shelf facies. The limestone is dominated by rudstone, boundstone, packstone, floatstone with minor grainstone.|carbonate sedimentary rock|||N||17-JAN-23
Elwells Creek Coal Member|77603|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Coal: Coal of ranging thickness and distribution|organic rich sedimentary rock|||N||17-JAN-23
Emerald Beach Monzogranite|77013|Emerald Beach Adamellite|27147|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Triassic|||inferred|intrusion|Upper Triassic|228.5|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Ungrouped.|Medium-grained, sparsely to strongly porphyritic, biotite monzogranite.|acid intrusive rock|||Y|A-type|19-JUL-23
Emmagool Tuff|6137|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||eruption|Silurian||||||||No|43476|||||||||||N||17-JAN-23
Emmaville Volcanics|6143|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Wandsworth Volcanic Group|29113|||Lopingian||||eruption|Lopingian|252.3|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|32671||||||Supersedes "Emmaville Volcanic Formation" and "Vegetable Creek Volcanics"?  Redefined by Pogson 1972.|Felsic volcanics and volcaniclastics: ignimbritic rhyolites and rhyodacites; rhyodacitic lavas, minor dacite, andesite; porphyritic dacite lava, dacitic ash flow, rhyolitic ash flow; minor interbedded sediments; basal conglomerate, sandstone, lutite.|acid volcanic rock|||N||21-AUG-23
Emohruo Granite|73372|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Westella Suite|73375|Lower Devonian|416.7|3.4|isotopic|intrusion|Late Silurian||||||||No|70941||Trigg, S. (GSNSW)|24-MAY-07|||For use on BYROCK map sheet; nearest town is Bourke. To be pub: BYROCK Sheet Explan. Notes (2008), GSNSW. Originally misspelt as Emohrou Granite. Corrected SEP-2008.|Poorly outcropping ?granite; strongly foliated; grey, fine- to medium-grained biotite granite/granodiorite with mafic enclaves/xenoliths, mylonitic.|acid intrusive rock|||Y|I-type|17-JAN-23
Emu Creek Formation|6156|Emu Creek formation|6161|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Westphalian||||deposition|Pennsylvanian|323|2.3||||3500||No|32494||||||NSW only, not Qld.|Western unit: medium to thin bedded, in places rhythmically interbedded, sandstone and siltstone and prominent conglomerate beds. Mainly volcanic and acid plutonic detritus. Eastern unit: thick bedded sandstone, laminated to massive siltstone and conglom|medium-coarse grained siliciclastic rock||forearc|N||17-JAN-23
Emu Flat Formation|6162|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|36936|||||||||||N||17-JAN-23
Emu Hollow Dacite|24953|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Katian||||eruption|Katian|449|4|isotopic, K/Ar|||||No|34895|||||||||||N||17-JAN-23
Enmore Monzogranite|41056|Enmore Adamellite|6194|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Enmore Suite|73914|Permian||||intrusion|Permian||||||||No|24366||||||Formerly in the Hillgrove Suite; now in the Enmore Suite, of Hillgrove Supersuite.|Biotite monzogranite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Erigolia Granite|41569|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Koetong Suite|9703|Wenlock|428|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Wenlock|429.2|3.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|60303||||||Within the Koeting Supersuite. Intrudes Clements Formation (Wagga Group). Ages: ~428.2Ma, 428.0+/-3.4Ma.|Coarse- to medium-grained leucocratic equigranular to sparsely porphyritic granite with metasedimentary xenoliths and biotite-rich microgranular enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Erimeran Granite|25898|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Erimeran Suite|31574|Ludlow|424.5|2.6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Wenlock|427.2|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|45003|41528|||||See also RefID 67060 p505. Is texturally and compositionally similar to the Thule Granite. An additional age of 434 +/- 4 Ma is derived by SHRIMP from Isaacs (2000); However this age was not supported by the present study (2016) which gave a date of 424.5 +/- 2.6 Ma U-Pb SHRIMP.|Medium to coarse-grained, porphyritic, cordierite-muscovite-biotite granite, microgranite, monzogranite and micromonzogranite; lesser equigranular, medium-grained, porphyritic muscovite-biotite granite and microgranite; minor foliated, coarse-grained bio|acid intrusive rock|||Y|S-type|05-SEP-23
Erimeran Suite|31574|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Erins Vale Formation|24958|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cumberland Subgroup|26507|||Capitanian||||deposition|Wordian||||||100||No|34060|||||||Fine to medium-grained bioturbated lithic sandstone.|medium-coarse grained siliciclastic rock|||N||02-SEP-23
Ermelo Pyroclastics|37298|Ermelo Andesite Tuff|6233|||Yes|Formation, beds|Formal|Variation of published name|Defined|Currangandi Group|38099|||Bashkirian|||||Serpukhovian|321.3|2|isotopic, U/Pb-Pb/Pb ion probe|||366|NSW|Yes|61767|24605|||Sutherland, F.L.|22-JAN-03|Age: 319+/-5Ma (K-Ar), 321.3+/-3.2Ma (SHRIMP U-Pb). Definition by Roberts, J.|Dark, hornblende pyroxene andesitic to dacitic pyroclastic fall or/and flow deposit|intermediate volcanic rock||forearc|N||17-JAN-23
Errowan Monzonite|29585|Errowan Syenite|6252|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|22679|23214|||||Renamed as the Errowan Intrusive Complex? Name change apparently not accepted by GSNSW.|Biotite clinopyroxene monzonite, altered quartz syenite, pyritised monzonite|intermediate intrusive rock|||Y||17-JAN-23
Escott Zeolitite Member|68031|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Currabubula Formation|5055|||Pennsylvanian|||inferred|deposition|Serpukhovian|||inferred|||||No|50613||||||See also Escott Zeolitite.|Interbedded crystal-vitric tuffs and laminated lacustrine siltstone and mudstone.|acid volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Esk Formation|6265|Esk Shale|6270|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Toogoolawah Group|18352|||Middle Triassic||||deposition|Lower Triassic||||||3000||No|44115||||||Formerly "Esk Shales", "Esk Beds" and "Esk Formation".|Polymictic pebble to boulder conglomerate, feldspathic sandstone, shale, minor acid tuff.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Essex Member|35608|||||Yes|Member, phase|Formal|Resvd name published|Defined|Rankin Formation|15840|||Famennian||||deposition|Famennian||||||300||No|61964|61964|Meakin S.|13-JUN-00|||For use on CARGELLIGO 1:250 000 map sheet area. Within the Cocoparra Group. These rocks were formerly mapped as undifferentiated, together with the Bywatha Conglomerate Member. For palaeontological details - see RefID: 61964, p261.|Thin, medium bedded quartz sandstone, minor mudchip breccias, rounded to sub-angular quartz grains; marine trace fossils and rare shelly debris.|siliciclastic sedimentary rock|||N||17-JAN-23
Etheridge Monzogranite|77031|Etheridge Adamellite|32263|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Biotite monzogranite commonly containing cordierite|acid intrusive rock|||Y|S-type|29-SEP-23
Ettamogah Tuff Member|27676|||||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Babinda Volcanics|25702|||Lower Devonian||||eruption|Lower Devonian||||||900|NSW|No|35287|41528||||||Rhyolitic, chloritic, porphyritic, lithic-crystal, often vesicular tuff and volcanic breccia. Minor tuff.||||N||20-JUL-23
Ettlewood Calc-Silicate Member|6324|Ettlewood Calc-silicate Member|6326|||Yes|Member, phase|Formal|Other new published name|Defined|Allendale Metasediments|23328|||Statherian|1693|4|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1693|4|isotopic, U/Pb-Pb/Pb ion probe|deposition|||NSW|No|38969|39662|||||Part of Broken Hill Group in the Olary / Broken Hill Province. Equivalent to the marker unit, Bimba Formation, in the Olary Domain. The Bimba-Ettlewood equivalent provides a tie-point for the two domains. Hosts polymetallic mineralization (Zn-Pb-Ag-Cu-Co-W). An adjacent tuffaceous metasiltstone was dated at 1693 +/- 4 Ma (Page et al., 2005a).|Pale, planar to irregularly layered epidote and clinopyroxene-rich calc-silicate.|metasedimentary carbonate rock||continental rift|N|S-type|17-JAN-23
Ettrema Limestone Member|6333|||||Yes|Member, phase|Formal|Other new published name|Described|Bellbird Creek Formation|1423|||Famennian||||deposition|Frasnian||||||||No|32129||||||See also Ettrema Limestone. Contains a number of Late Famennian (Late Devonian) fossils (1992 ref). but see also: Frasnian based on conodonts of the upper gigas Zone (Pickett, 1972)(1993 ref to Ettrema Limestone member.|Grey limestone and intercalated shale; conodonts and invertebrate macrofauna. Grey fine-grained quartzose sandstone and brown, micaceous siltstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Ettrick Formation|6337|Ettrick Marl|6341|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murray Group|13544|||Early Miocene|14.78|||deposition|Rupelian|||biozone|||50|SA|No|43466|42966|||||Shown as NOT Murray Group in SA (96/28130). Revised stratigraphy for the Murray Group (Lukasik and James 1999) up to Murray Supergroup, included this unit in its definition, along with Geera Clay and Winnambool Formation. Formerly part of the now obsolete Glenelg Group together with Compton Conglomerate; this is the basal unit of Murray Group ( in South Australia) and incorporates the former Compton Conglomerate rocks.|Glauconitic marl, calcareous clay, and mudstone, with silt and sand.|carbonate sedimentary rock|||N||17-JAN-23
Euchabil Gap Formation|32326|Euchabel Gap Formation|21757|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Trundle Group|29079|||Upper Devonian||||deposition|Givetian||||||570||No|22831||||||Narromine 1:250 000 sheet. Name misspelt when reserved & first published. Of Wallingalair Group. Also Forbes 1:250 000 sheet area, but of Trundle Group there. Age revised by Young (2006) dating of underlying Coonardoo Sandstone as Givetian or younger.|Siltstone and fine-grained quartzose arenite with claystone fragments; poorly preserved fossils.||||N||20-JUL-23
Eucumbene Granite|6348|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|45087||||||||acid intrusive rock|||Y||17-JAN-23
Eugowra Granite|27770|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Eugowra Suite|31470|Lower Devonian||||intrusion|Lower Devonian|394|2.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|43510|||||||Biotite granite, hornblende biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Eugowra Suite|31470|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Eulendool Formation|30099|||||Yes|Formation, beds|Formal|Other new published name|Described|Adaminaby Group|98|||Upper Ordovician||||deposition|Lower Ordovician||||||||No|43089||||||Name suggested by Trigg (1987) for thick-bedded sequence within the former Tallebung Group. Probably refers to a composite of the sandstone-rich packages overlying/underlying Currawalla Shale.  On NYMAGEE sheet. Previously of Wagga Group. Incorporated into Adaminaby Group when Wagga Group name dropped. See 2018 proposal in RefID 73140 and GSNSW seamless geology 2021.|Thick-bedded graded, parallel-laminated and ripple cross laminated, poorly sorted fine to coarse-grained, quartz sandstone and quartzite, interbedded with thinly bedded to massive mudstone and siltstone, minor massive to graded conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Eulowrie Pyroclastic Member|40557|Eulowrie Pyroclastics|37309|||Yes|Member, phase|Formal|Variation of published name|Defined|Lark Hill Formation|10194|||Kasimovian|310.6|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Moscovian||||||||No|24605|24605|||||Supersedes Eulowrie Pyroclastics [GSNSW May 2011].|Laminated, cherty, ash-rich siltstone (containing shards, feldspar, quartz and pumice). Slumps and sandstone dykes characterise the upper western part of the section|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Eungai Mudstone|6369|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Famennian||||deposition|Frasnian||||||||No|43435|43435||||||Massive and laminated grey mudstone with rare wacke horizons and tuffaceous laminae and beds|fine grained siliciclastic rock|||N||17-JAN-23
Eura Bonny Granite|36152|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Koetong Suite|9703|Ludlow|427.4|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|427.4|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|61964||Meakin S. GSNSW  meakins@minerals.nsw.gov.au|05-JUN-01|||CARGELLIGO 1:250 000 map sheet area.  Lithologically similar to other granites of Koetung Suite but with larger K-feldspar phenocrysts. Age: ~428.2Ma. Within the Koetong Supersuite.|Highly weathered porphyritic biotite granite - K-feldspar phenocrysts set in a coarse-grained groundmass of anhedral quartz and euhedral plagioclase crystals with scattered biotite and muscovite flakes.|acid intrusive rock|||Y|S-type|17-JAN-23
Euradux Granite|75927|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Braidwood Suite|31487|Pragian||||intrusion|Pragian||||||||No|69159||Deyssing, L. (GSNSW)|20-APR-11|||Pink-grey, medium to coarse-grained, massive, porphyritic, biotite granite. To be published = Braidwood 1:100 000 geological map 2nd edition.|Pink-grey, medium to coarse-grained, massive, porphyritic, biotite granite.|acid intrusive rock|||Y||17-JAN-23
Euralie Limestone Member|6372|||||Yes|Member, phase|Formal|Variation of published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|deposition|Wenlock|||inferred, underlying unit||7|45|NSW|No|31852|68592|||||Originally named as member of  Laidlaw Formation, later part of Silverdale Formation, now (2012) part of Yanawe Formation.|Fossiliferous tuffaceous sandstone, mudstone and limestone interbeds, calcareous nodules sporadically developed.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Euranbene Granite|6376|Euranbene Adamellite|23583|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Formal name not intended in 1991, but this name preferred by GSNSW in 2011.||acid intrusive rock|||Y||17-JAN-23
Eurimbla Formation|72812|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Llandovery|||inferred, biostratigraphic correlation|deposition|Llandovery|||inferred, underlying unit||||NSW|No|64238||Pogson, D. (NSW)|14-FEB-07|||Published: Explan.Notes (2nd ed.) for GOULBURN 1:250K Geological Sheet SI 55-12; nearest town is Boorowa.|Purplish to greenish, polymictic conglomerate, lithic sandstone, laminated quartzose siltstone and minor black siliceous mudstone, and volcaniclastic sandstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Euriowie Subgroup|6382|Euriowie Sub-Group|26540|||Yes|Subgroup|Formal|Variation of published name|Described|Torrowangee Group|18460|||Ediacaran||||deposition|Cryogenian||||||||No|36733||||||Part of the Adelaidean sequence. South Australian equivalent is Farina Subgroup.|Limestone, dolomite, calcareous siltstone and sandstone, sandy limestone and conglomerate of marine origin.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Eurolie granite|80448|Eurolie granodiorite|76040|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Booroorban granite suite|80438|Lower Devonian|||inferred, intrusive relationship||Lower Devonian|||inferred|||||No|70718||||||Informal name, interpreted from geophysics.|Interpreted as I-type granite similar to Booroorban granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Eurombah Formation|6386|Eurombah Beds|6385|||Yes|Formation, beds|Formal|Variation of published name|Defined|Injune Creek Group|8710|||Callovian||||deposition|Callovian||||||95|QLD|No|33367|45110|||||Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Ipswich 1:250k sheet area. Type section in DRD 22; intersected in GSQ Munduberra 1.|Lithic conglomeratic sandstone with mudstone and siltstone beds.|siliciclastic sedimentary rock|||N||31-JUL-23
Eurongilly Serpentinite|29575|Mooney Mooney Serpentinite|12238|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Silurian|||||Early Silurian||||||||No|22638|22638|Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. Age unknown but possibly Late Silurian. Forms in situ outcrops and displaced blocks. Highly magnetic.|Fine-grained, light greenish-grey serpentinite; dominated by fine serpentine minerals with domains of disseminated magnetite. Locally has extensive carbonate alteration.|metamorphosed ultramafic rock|||N||17-JAN-23
Eurow Formation|24965|Eurow Member""|37115|||Yes|Formation, beds|Formal|Other new published name|Defined|Hervey Group|25947|||Upper Devonian||||deposition|Famennian||||||680|NSW|No|43510|43507|||||Defined Connolly 1965a - J Roy Soc NSW 98. Replaced by Eurow Member in Bathurst 1997 1:250 000 sheet area, but Formation used in Forbes 1999 1:250 000 sheet area. Formerly considered part of Cookamidgera Subgroup.|Friable red sandstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Eurunderee Coal Member|80148|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Eurundury Formation|30026|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|43188|||||||||||N||17-JAN-23
Eurydesma beds|37372|Eurydesma Limestone|6394|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Sakmarian|||inferred, biostratigraphic correlation|deposition|Asselian||||||200||No|63731||after Olgers et al 1974|19-JUN-02|||Fully described as Eurydesma Beds in 1974, see R164. Of Silverwood Block.|Conglomerate, sandstone, siltstone, limestone.|medium-coarse grained siliciclastic rock||extensional continental backarc|N||17-JAN-23
Eusdale Granite|30351|Eusdale Adamellite|25902|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bathurst Suite|31450|Carboniferous||||intrusion|Carboniferous||||||||No|43641||||||Used on 2nd edition Bathurst area maps. Supersedes Eusdale Adamellite. See also misspelling - Eusdah Granite.|Pink, biotite, porphyritic granite|acid intrusive rock|||Y||17-JAN-23
Eustah Granite|26541|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42712||||||||acid intrusive rock|||Y||17-JAN-23
Evans Crown Granite|6403|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bathurst Supersuite|31449|Pennsylvanian||||intrusion|Pennsylvanian|312||isotopic, Rb/Sr|||||No|42712||||||Intrudes the Lambie Group, Tarana Granite and Gibbons Creek Sandstone. Age:312Ma (Rb/Sr).|Pink, medium-grained, equigranular biotite leucogranite and porphyritic|acid intrusive rock|||Y||17-JAN-23
Evans Head Coal Measures|24966|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Triassic||||deposition|Upper Triassic||||||300||No|43383||||||Some publications appear to have included this in the Woogaroo Subgroup, however NSW GIS has this unit as group rank.|Thin- to thick-bedded, crossbedded, coarse-grained quartz to sublithic arenite, thinly-bedded grey siltstone, claystone, minor coal, as partings and very thin bands.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Evelyn Creek Volcanics|76099|Evelyn Creek volcanics|76150|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Ordovician|||inferred, intrusive relationship|eruption|Cambrian|||inferred, intrusive relationship|||||No|67207||||||Originally Evelyn Creek Suite. See also Evelyn Creek volcanics for definition. Used in GSNSW seamless geology dataset 2021.|Dark grey, foliated and folded mafic sills and dykes, medium-grained monzodiorite. Dark brown to green, foliated and folded aphanitic metadolerite. Dark-brown to green aphanitic mafic sills with amygdales; alkali basalt to trachybasalt.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Evergreen Formation|6416|||||Yes|Formation, beds|Formal|Other new published name|Defined|Bundamba Group|2963|||Toarcian|||biozone|deposition|Pliensbachian|||biozone||30|255||No|44124|44636|||||Includes the former "Evergreen Shales" and Boxvale Sandstone as a member. Age from palynoflora (units APJ21, 22, 3) [1997 reference].|Labile and sublabile, sandstone overlain by carbonaceous mudstone, siltstone and minor coal; local oolitic ironstone.|medium-coarse grained siliciclastic rock|organic rich sedimentary rock|intracratonic|N||17-JAN-23
Evergreen Formation, lower|80635|Evergreen Formation|6416|||Yes|Formation, beds|Informal|Variation of published name|Briefly described||||||||||||||||||No|71805||||||Of Evans (1962) based on study of Glentulloch -1 well. Eromanga Basin.|||||N||17-JAN-23
Evergreen Formation, upper|39795|Evergreen Formation|6416|||Yes|Formation, beds|Informal|Variation of published name|Described||||||||||||||||||No|61310||||||Refers to the upper part of Evergreen Formation only.|||||N||17-JAN-23
Ewolong Formation|27152|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Yarra Yarra Creek Group|29299|||Lower Devonian||||deposition|Lower Devonian||||||150|NSW|No|9548|42566||||||Quartz-lithic conglomerate with angular clasts; massive to cross-bedded sandstone.||||N||20-JUL-23
Excelsior Porphyry Member|6437|||||Yes|Member, phase|Formal|Resvd name published|Defined|Lovetts Formation|10687|||Silurian|||inferred|eruption|Silurian|||inferred|||40|NSW|Yes|29903||Bowman H.N.|15-SEP-72|||Basal lithology of the Lovetts Formation in the Burraga Copper Mine.|Quartz-feldspar porphyry.|acid volcanic rock|||U||17-JAN-23
Excursion Creek Sandstone Member|28543|||||Yes|Member, phase|Formal|Variation of published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|deposition|Ludlow|||inferred, underlying unit||22|104.9|NSW|No|32675|68592|||||Originally named as member of  Laidlaw Formation, later part of Silverdale Formation, now (2012) part of Yanawe Formation.|Medium-very fine grained, thin-medium bedded, massive volcanic sandstone with lesser siltstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Exmouth Granodiorite|6445|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Uralla Suite|18973|Permian||||intrusion|Permian||||||||No|31806|||||||Hornblende-biotite granodiorite.|acid intrusive rock|||Y||17-JAN-23
Eyre Formation|6451|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lutetian|42||biozone|deposition|Danian|62||biozone|||120|SA|No|24176|33938|||||See also Winton Formation. See Strzelecki 1:250k explan notes (1995) for location of type section. Geological Province: Callabonna Subbasin/ Lake Eyre Basin.  Overprinted by the "Cordillo Silcrete". See also Lake Eyre Formation. Dominantly a braided stream and floodplain deposit. Palynology age range. Rare leaf fossils in silt or clay layers; variably lignitic near base (+/- pyrite). Reddish horizons and silcrete mark paleosols.|Variably silcrete-altered quartzose sandstone, minor pebbly sandstone and conglomerate; ubiquitous glossy quartz pebbles. Pyritic, carbonaceous sand,  range from silt to small cobble, with bands of lignite and clay: montmorillonite, kaolinite, illite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Eyriebower Coal Member|6463|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Lucernia Coal|10842|||Late Permian||||deposition|Late Permian||||||||No|29942||||||See also Eyriebower Coal - both names used in same text (RefID: 23717).||organic rich sedimentary rock|||N||17-JAN-23
F Ply bed|82445|||||Yes|Bed|Informal|Other new published name|Briefly described|||Ulan Coal Member, Lower|82443|Permian|253.8|1.9|inferred, overlying unit||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Tuffaceous claystone, marker horizon within the Ulan Lower Coal seam between the E and G coal plies.|fine grained siliciclastic rock|||N||17-JAN-23
Fairbairns Lane Coal Member|77068|Fairbairns Lane seam|38307|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Jilleon Formation|23668|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin. Used in GSNSW seamless geology 2021.|Up to 5 coal bands, basal bands are bright coal, grading up to dull coal; high- and medium-volatile bituminous coal|organic rich sedimentary rock|||N||17-JAN-23
Fairbairns Lane seam|38307|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by the Fairbairns Lane Coal Member [GSNSW July-2012]. Not related to (obsolete) Fairbairn Group.|||||N||17-JAN-23
Fairbridge Volcanics|25904|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Middle Ordovician|447|5||eruption|Middle Ordovician|464.6|3.2|||2000|2750|NSW|No|29362|23170|||||Replaces Cargo Volcanics (& Cargo Andesite) in the Bathurst 1:250 000 sheet notes (1998). Molong-Wellington Volcanic Belt. Formerly part of Kenilworth Group which has been discontinued (Pogson et al., 2012) in favour of Cabonne Group. Dubbo 1:250 000 sheet area.|Basaltic to andesitic and latitic volcanics, volcaniclastic sandstone, tuff, conglomerate, breccia, siltstone; minor limestone, partly allochthonous.|basic volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Fairfield Creek Member|6481|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Drake Volcanics|28513|||Late Permian||||deposition|Late Permian||||||||No|33476||||||Not used since 1991. May be obsolete?|Well-laminated rhyolitic crystal-lithic tuff.|acid volcanic rock|||N||17-JAN-23
Fairford Formation|6491|Fairford Claystone|6490|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Wuchiapingian|257.43|.09|isotopic, U/Pb-Pb/Pb, TIMS|||4.55|NSW|No|40805|40805||||||A distinctive off-white tuffaceous claystone to lithic (volcanigenic) sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Fairholme Igneous Complex|33490|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Ordovician|445||||Ordovician|480|||||||No|63284||Raymond, O.L.|10-JUN-99|||Volcanics & intrusives. Forbes 1:250 000 sheet area - published as "Fairholme igneous complex". Name used by Newcrest.|Pillow basalt and hbd-phyric intrusive.|basic intrusive rock|||Y||17-JAN-23
Fairy Meadow Limestone Member|6504|||||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock|||||||NSW|Yes|30736|30735|Felton E.A.||Bryan, J.H.|27-OCT-75||Finely laminated micrite.|carbonate sedimentary rock|||N||17-JAN-23
Faithful Coal Member|80149|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Falnash Granite|31708|Meadow Flat Granite|11585|||Yes|Formation, beds|Formal|Other new published name|Described|||Bathurst Supersuite|31449|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|43782|||||||Medium grained porphyritic granite|acid intrusive rock|||Y||17-JAN-23
Faraway Hills Quartzite|27403|Far Away Hills Quartzite|24973|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Farnell Group|6531|||Neoproterozoic|||||Neoproterozoic||||||40||No|34563|||||||Grey, silicified massive quartzite with white clay matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Farley Formation|6526|Farley formation|6529|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Dalwood Group|28493|||Cisuralian||||deposition|Cisuralian||||||300||No|43385||||||See also Lexicon. SI56-1/Singleton, Cessnock. Previously (wrongly) shown as being in QLD as well as NSW.|Silty sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Farmborough Claystone Member|21773|||||Yes|Member, phase|Formal|Resvd name published|Described|Wongawilli Coal|20443|||Changhsingian|253.59|.05||deposition|Wuchiapingian|254.1|.32||||1.3||No|24471||Hutton A.|20-DEC-90|||This version of the name used in GSNSW Seamless geology 2023. See also Farmborough Claystone for more on ID-TIMS dating.|Light-coloured claystone, sporadically weathered to kaolinite, containing (characteristic) angular broken fragments of devitrified glass with pumice texture.||||N||14-AUG-23
Farmcote Gneiss|35525|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rantyga Group|70113|||Statherian|1605|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Statherian|1705|5|isotopic, U/Pb-Pb/Pb ion probe|||5000|NSW|Yes|63519|64097|Stevens B.P.J.|20-JUN-00|||New unit at top of Rantyga Group (Willyama Supergroup) in the Broken Hill-Olary region (Redan Sub-block) - equivalent to Lady Brassey Formation and Alma Gneiss (Thackaringa Group) in Broken Hill and Euriowie Inliers. Max metamorphic age 1605+/-3 Ma U/Pb SHRIMP. For detailed lithology, see 'General Description' under UNIT DEFINITION - stating 'uncertain whether the leucogneisses should be considered part of the stratigraphic unit'.|Metasediments and gneiss.|metasedimentary rock|foliated metamorphic rock|continental rift|N|I-type|17-JAN-23
Farmers Creek Formation|24609|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wallerawang Subgroup|19281|||Late Permian||||deposition|Late Permian||||||97|NSW|Yes|38614|40806|C.Bembrick|30-JUN-80|Russell, T.|13-JUL-83|See letter for more information. Wallerawang Subgroup, Illawarra Coal Measures.|Claystone, carbonaceous claystone, mudstone, tuffaceous shale, coal.|fine grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Farnell Group|6531|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Ediacaran||||deposition|Ediacaran||||||||No|30261||||||Part of the Adelaidean sequence. South Australian equivalent is Wilpena Group.|Grades from basal cap dolomite, through a thick siltstone-rich package into an upwards-coarsening sequence of quartzite and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Farquhar Limestone Member|6536|Farquhar limestone member|6540|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Towanga Sandstone|27245|||Early Silurian||||deposition|Early Silurian||||||||No|23710||||||Originally of Towanga Formation. Probably of Towanga Sandstone.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Fassifern Coal|6550|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Boolaroo Subgroup|2220|||Lopingian|253.25|.04||deposition|Lopingian|253.38|.08|isotopic, U/Pb-Pb/Pb, TIMS|maximum depositional age||||No|34270||||||This Formation was downgraded to the informal Fassifern coal seam instead, and the rocks included in the Boolaroo Formation. Original name reinstated ~2015. Previously of Moon Island Beach Subgroup, now Boolaroo Subgroup. Updated from GSNSW seamless geology dataset 2021.|Coal with minor thin tuffaceous claystone bands and/or rare ?carbonaceous claystone bands.|organic rich sedimentary rock|fine grained siliciclastic rock||N||14-AUG-23
Fassifern coal seam|35115|Fassifern Coal|6550|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Boolaroo Formation|2217|||Late Permian||||deposition|Late Permian||||||||No|23055||||||Informal unit. Within Boolaroo Formation, Newcastle Coal Measures.||organic rich sedimentary rock|||N||17-JAN-23
Faulkland Formation|6555|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Serpukhovian||||deposition|Visean||||||750||No|32671|44244||||||Massive red and grey lithic arenite; shell banks.||||N||02-JUN-23
Federal Suite|31675|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Fencers Creek Conglomerate Member|32686|Fencers Creek Conglomerate|24976|||Yes|Member, phase|Formal|Variation of published name|Redefined|Brawlin Formation|40188|||Llandovery||||deposition|Llandovery||||||||No|22638|22638|||||Cootamundra 1:250k sheet area.  Redefined 1995. Formerly of the Blowering Formation. Used in GSNSW seamless geology dataset 2021.|Stretched pebble conglomerate, sandstone, claystone.||||N||24-JUL-23
Fenestella Shale Member|78693|Fenestella Shale|6580|||Yes|Member, phase|Formal|Variation of published name|Fully described|Branxton Formation|2498|||Wordian|||inferred, underlying unit|deposition|Roadian|271.4||isotopic, U/Pb-Pb/Pb, TIMS|maximum depositional age|30|60||No|68493||||||Formerly 'Fenestella Shale' of Jones(1939). 30-60 m thick. Type locality: Mulbring quarry at 32deg54'00"S, 151deg28'12"E. Deposited during Fielding et al.'s (2008) glacial episode P3. Top part of Greta Coal Measures (underlying the Branxton Formation) dated by CA-IDTIMS with maximum depositional age of 271.4 Ma, hence this member at the top of the Branxton Formation inferred to be early Wordian age.|Consists of interbedded yellowish brown micaceous shale and siltstone, with sparse bands of very thin calcareous mudstone.|fine grained siliciclastic rock|||N||02-SEP-23
Fennell Bay Member|35171|Fennel Bay Chert|30967|||Yes|Member, phase|Formal|Other new published name|Mentioned|Newcastle Coal Measures|27861|||||||deposition|||||||||No|23055|||||||||||N||17-JAN-23
Fentonville Tonalite|25907|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Hornblende-biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Fenwicks Creek Serpentinite|75834|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|65317||||||Probably accidentally 'formalised'. Only used in figure for serpentinite near Fenwicks Creek.  No description.|||||N||17-JAN-23
Feral gneiss|76847|||||Yes|Formation, beds|Informal|Other new published name|Described|Willyama Supergroup|20135|||Paleoproterozoic|||||Paleoproterozoic||||||||No|65681||||||An informal name for a felsic gneiss with a relatively minor outcrop area, northeast of Broken Hill airport.|Light-grey, leucocratic, megacrystic, felsic gneiss with non-aligned, euhedral to subhedral K-feldspar megacrysts in a coarse- to medium-grained groundmass of quartz, alkali feldspar, plagioclase, biotite and minor sillimanite.|foliated metamorphic rock|||N||17-JAN-23
Fermoy Volcanics|21778|||||Yes|Formation, beds|Formal|Resvd name published|Described|Derriwong Group|5403|||Lochkovian||||eruption|Pridoli||||||200||No|43441||Sherwin L.|13-AUG-93|||Narromine 1:250 000 sheet. Used in GSNSW seamless geology dataset 2021.|Feldspar porphyry lava or shallow intrusive.||||N||24-JUL-23
Fern Valley Coal|6594|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Adamstown Subgroup|107|||Lopingian|||inferred, lithostratigraphic correlation|deposition|Lopingian|||inferred, lithostratigraphic correlation|||||No|39308||||||Originally name of a Formation within Adamstown Subgroup in the Newcastle Coal Measures. This Formation has been downgraded to the informal Fern Valley coal seam instead [1999]. More recently used as seam or member of Adamstown Formation. Name revived and used in GSNSW seamless geology dataset 2021.|Coal generally forms bands, which are split to include polymictic conglomerate, sandstone, shale and tuff.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Fern Valley Coal Member, Lower|82554|Fern Valley Coal|6594|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Fern Valley Coal|6594|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Thin bands of coal with numerous tuff bands.|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Fern Valley Coal Member, Upper|82555|Fern Valley Coal|6594|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Fern Valley Coal|6594|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Thin bands of coal with numerous tuff bands.|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Ferndale Conglomerate Member|6600|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Tighes Hill Formation|18147|||Lopingian||||deposition|Lopingian||||||||No|43447||||||This Member was dropped. Formerly of Tighes Hill Formation, Lambton Subgroup, Newcastle Coal Measures. Reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Fernside Monzodiorite|29586|Fernside Diorite|21781|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|22679|23214|Henderson T. Wyborn D.|19-APR-93|||Originally reserved as Fernside Diorite by R.Close 6-Jun-77. Lapsed Jan-83. Reserved again APR-93. Name varied AUG-95. Intrudes Blayney Volcanics. Forms an elongate intusion 3.5km in length and about 0.5km in width.|Clinopyroxene monzonite and diorite.|intermediate intrusive rock|||Y||17-JAN-23
Fife Monzogranite|76950|Fife Adamellite|6641|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Middle Triassic||||intrusion|Lower Triassic||||||||No|71628||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine-grained, leucocratic biotite-hornblende monzogranite to monzogranite-syenogranite.|acid intrusive rock|||Y|I-type|16-AUG-23
Fifeshire Shale|40945|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Murrumbidgee Group|27854|||Pragian||||deposition|Pragian||||||||No|50230|||||||Red-grey, massive to finely laminated shale or mudstone with lesser amounts of calcareous shale and fine-very fine grained, irregularly spaced beds of silty micritic limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Fifield Suite|77333|Fifield Complex|39941|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Silurian|||||Middle Ordovician|||inferred, intrusive relationship|||||No|69635||Blevin, P. (GSNSW)|05-MAY-12||||Semi-vertical pipe-like intrusions of Alaskan-type ultramafic to mafic rocks; contains ultramafic (dunite, peridotites, wehrlites, pyroxenites and hornblendites) and felsic (monzonites, monzodiorites and diorites) zones. Foliated alpine serpentinites.|ultramafic igneous rock|basic igneous rock||Y||17-JAN-23
Fifteen Mile Tank Conglomerate Member|23591|Fifteen Mile Tank Conglomerate|6646|||Yes|Member, phase|Formal|Resvd name published|Defined|Boothumble Formation|2294|||Devonian||||deposition|Devonian||||||1000|NSW|No|41394|41394|G.MacRae|05-OCT-82||||Clast-supported pebble and cobble conglomerate and arenite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Figtree Coal Member|6647|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Pheasants Nest Formation|26100|||||||deposition|||||||||No|29900||||||Of Pheasants Nest Formation (advice from Roger Cameron's Sydney Basin spreadsheet OCT-2010)||organic rich sedimentary rock|||N||17-JAN-23
Figtree Creek Ignimbrite Member|75943|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Currabubula Formation|5055|||Serpukhovian||||eruption|Serpukhovian||||||||No|65902||||||Of Currabubula Formation. Overlies Coeypolly Conglomerate Member in the Werrie Syncline.|Ignimbrite.|acid volcanic rock|||N||17-JAN-23
Figurehead Monzogranite|76980|Figurehead Adamellite|21785|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Wallagaraugh Suite|25586|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Porphyritic monzogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Finch clay facies|70081|Finch Claystone|6648|||Yes|Bed|Informal|Variation of published name|Briefly described|Wallangulla Sandstone Member|19267|||Albian||||deposition|Albian|||||1|6||No|22857||||||Not intended as a formal name. Hosts much of the precious black opal in the upper 1m or so. Source of a diverse range of fossils.|Grey to buff, montmorillonite-rich claystone.  Numerous clay beds interbedded with sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Finister Granodiorite|6655|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Finister Suite|6656|Late Silurian||||intrusion|Silurian|436.2|4.7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33852|41905|||||Rb/Sr Ages: 421.5 Ma to 415.9 Ma. 207Pb/206Pb Age: 440Ma. See also RefID 67060 p505.|Hornblende-biotite granodiorite and tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Finister Suite|6656|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Late Silurian|||||Silurian||||||||No|41905|||||||||||Y||17-JAN-23
Fitz Creek beds|35395|||||Yes|Formation, beds|Informal|Resvd name published|Described|Wild Ash Group|82703|||Lopingian|||inferred|eruption|Cisuralian|||inferred|||1770||No|61392||van Noord K.A.A.|05-APR-00|||Age unknown, considered Early to Late Permian based on correlation. Location: Warwick, Allora 1:100k sheet areas, 9341, 9241. Reserved as part of the Silverwood Group, but not included in this group on ALLORA Special 1:100k map sheet. Previously of Wildash Group.|Siliceous volcaniclastic sediments and debris flow deposits, lapilli tuff, rhyolite lava|acid volcanic rock||extensional continental backarc|N||17-JAN-23
Five Hundred Acre Granodiorite|21794|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Shannons Flat Suite|31633|Late Silurian||||intrusion|Late Silurian||||||||No|22815||Lewis P.|21-DEC-90|||BD as 500 Acre Granite Chappell et al (1991).|Leucocratic tonalite to monzogranite|acid intrusive rock|||Y||17-JAN-23
Five Islands Latite Member|6710|Five Islands Latite|6711|||Yes|Member, phase|Formal|Unknown or process pending|Described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|38690||||||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Fine-grained pillowed latite flow.|intermediate volcanic rock|||N||17-JAN-23
Five Mile Creek Syenogranite|74779|Stanthorpe Adamellite|17272|||Yes|Formation, beds|Formal|Other new published name|Described|||||Triassic|242.2||isotopic|intrusion|Triassic|242.2||isotopic, Rb/Sr|||||No|61789||||||Previously mapped as Stanthorpe Adamellite. Medium-grained, seriate, biotite- and hornblende-bearing syenogranite and is regionally extensive. Age 242.2 Ma by Shaw (1994), probably Rb-Sr. Of Stanthorpe Granite Group.|Medium-grained, seriate, biotite- and hornblende-bearing syenogranite and is regionally extensive.|acid intrusive rock|||Y||17-JAN-23
Flaggy Range Monzogranite Phase|82447|||||Yes|Member, phase|Formal|Other new published name|Briefly described|||Banalasta Monzogranite|41050|Cisuralian|||inferred, geological correlation||Cisuralian|||inferred, geological correlation|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse- to very coarse-grained, strongly porphyritic biotite (+/-muscovite, +/-cordierite, +/-garnet) monzogranite.|acid intrusive rock|||Y|S-type|01-SEP-23
Flagstaff Formation|6721|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Visean||||deposition|Visean||||||||No|34072|44244||||||Volcaniclastic, lithic sandstone, mudstone, conglomerate, volcanic breccia, dacitic ignimbrite, chert and limestone.|siliciclastic sedimentary rock|acid volcanic rock|forearc|N||17-JAN-23
Fleming Coal Member|26556|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Rowan Formation|26878|||||||deposition|||||||||No|39346||||||Greta Coal Measures, Sydney Basin|Coal with a few irregular discontinuous bands|organic rich sedimentary rock|||N||17-JAN-23
Flint Hill Chert Member|21799|||||Yes|Member, phase|Formal|Resvd name published|Described|Bribbaree Formation|21325|||Darriwilian||||deposition|Darriwilian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes|Dark grey-blue to black, generally thinly bedded chert.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Flixton Coal Member|21800|||||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||D.Butel|03-AUG-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012.|Coal: Typically high volatile, very low ash, bituminous  (soft coking) coal, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Floods Creek Formation|6764|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Neoproterozoic||||||1070||No|30261|||||||Calcareous sandstone, interbedded grey-green siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Florida Volcanics|6774|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kopyje Group|28654|||Lochkovian|415.6|3.6|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation|Ludlow|421.7|2.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||1000||No|35219||||||Kopyje Shelf.|Rhyolitic and rhyodacitic lithic-crystal tuff and volcanic breccia, rhyolite lava, flow-foliated porphyritic dacite and minor siltstone|acid volcanic rock|||N|I-type|04-AUG-23
Flyblowers Creek Coal|77385|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Black Jack Group|1798|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Thick sequence of predominantly dull coal with bands of claystone, siltstone and sandstone.  Many of the bands were deposited as reworked airfall tuff|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Flying Fox Gully Trachyandesite Member|25911|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Pokolbin Hills Volcanics|26106|||Pennsylvanian||||eruption|Pennsylvanian|||||||NSW|No|29915|29915|||||Parent unit, lithology added from GSNSW seamless geology dataset 2021.|Leucocratic trachyandesite.|intermediate volcanic rock|||N||02-JUN-23
Focal Peak Volcanic Complex|83656|Focal Peak Group|83655|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Chattian|23||inferred, geological correlation||Chattian|24||inferred, geological correlation|||||No|||||||Used in GSNSW seamless geology 2021. Includes Albert Basalt, Chinghee Conglomerate, Kyogle Basalt, Mount Gillies Volcanics. May be superseded by Focal Peak Volcanics (Simpson and Sutherland, 2022, GSNSW Quarterly Notes 156).|Olivine basalt, extrusive rhyolite, sedimentary rocks between basalt flows.Hawaiite, minor alkali olivine basalt, basanite, rare tholeiitic volcanic rocks. Rhyolitic tuffs, flows, acid agglomerate, tuff, pitchstone. Lacustrine, coarse sandstone, conglom.|igneous volcanic rock|||N||17-JAN-23
Focal Peak Volcanics|83654|Focal Peak Group|83655|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Chattian|23||inferred|eruption|Chattian|24||inferred|eruption||||No|73581||||||May also replace Focal Peak Volcanic Complex used in GSNSW seamless geology 2021. Age inferred from seamless geology.|Scattered basaltic and felsic volcanic units. Includes numerous thin basal basalt lava units, interbedded with volcaniclastics.|igneous volcanic rock|||N||27-APR-23
Foggs Hollow Granite|6789|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Formal name not intended in Chappell et al (1991). Formalized on CROOKWELL 1:100 000 sheet (2000).  Part of the Wyangala Batholith.|Cream to grey, coarse-grained, massive to occasionally mildly foliated, equigranular to occasionally porphyritic (or megacrystic) biotite-muscovite granite and characteristic smoky grey quartz. High K, U and mod.to high Th radioelement response|acid intrusive rock|||Y||17-JAN-23
Folly Point Limestone Member|34596|Folly Point Limestone|23597|||Yes|Member, phase|Formal|Variation of published name|Fully described|Frome Hill Formation|6926|||Pridoli||||deposition|Pridoli||||||225||No|22842|||||||Fossiliferous limestone interbedded with well-sorted, medium-grained, fossiliferous sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Folly Volcanics|37289|Folly Spilite""|34393|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Tamworth Group|17757|||Eifelian||||eruption|Emsian||||||||No|24008||||||Referred to as Folly Basalt by Caprarelli and Leitch (2002). See also Folly Spilite.|Massive basalts with subordinate intercalated basaltic pillow lavas, albite dolerite, siliceous argillite, sandstone and rare basaltic breccias|basic volcanic rock||island arc|N||17-JAN-23
Forbes Group|25912|Forbes Beds|6800|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Late Silurian|||inferred, biostratigraphic correlation|deposition|Early Silurian|||inferred, biostratigraphic correlation|||3500|NSW|No|33118|46522||||||Fine grained sandstone, siltstone and mudstone; polymictic calcareous conglomerate, sandstone, limestone lenses|medium-coarse grained siliciclastic rock|carbonate sedimentary rock|oceanic backarc|N||17-JAN-23
Forbesdale Volcanic Member|6801|||||Yes|Member, phase|Formal|Other new published name|Briefly described|||||||||eruption|||||||||No|42547|||||||||||N||17-JAN-23
Forest Lodge Quartz Monzodiorite|74591|Forest Lodge Granite|6815|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Turrallo Suite|67914|Pragian||||intrusion|Pragian||||||||No|64238|||||||Grey, medium-grained, porphyritic, quartz monzodiorite with large crystals of plagioclase and augite set in an equigranular mosaic of plagioclase, pyroxene (clinopyroxene and orthopyroxene), K-feldspar, and miarolitic cavities|intermediate intrusive rock|||Y||17-JAN-23
Forest Range Member|29306|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Mingaletta Formation|23795|||Bashkirian||||deposition|Visean||||||||No|38803||||||Formerly included in Cooperabung Formation, now included in the base of the Mingaletta Formation. Used in GSNSW seamless geology dataset 2021.|Sandstone.||||N||24-JUL-23
Forest Reefs Volcanics|6819|Forest Reefs Beds|6818|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Katian||||eruption|Katian||||||2500||No|42759|23214|||||Age: ~448 Ma. Previously part of Weemalla Formation. Molong-Wellington Volcanic Belt.|Pyroxene-phyric volcanics, limestone, lapillistone and volcanics sandstone and conglomerate.|intermediate volcanic rock|basic volcanic rock||N||11-SEP-23
Forest Reefs Volcanics, Angullong Formation, Malongulli Formation, Millambri Formation, Weemalla Formation|41998|||||Yes|Subgroup|Informal|Variation of published name|Described|Cabonne Group|21409|||Llandovery||||deposition|Darriwilian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Mafic volcaniclastic sandstone, siltstone and conglomerate; calcareous siltstone, basalt, trachybasalt, latite, chert, limestone|medium-coarse grained siliciclastic rock|basic volcanic rock||N||17-JAN-23
Fossil Hill Limestone|6862|Fossil Hill Limestone Member|6861|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cliefden Caves Limestone Subgroup|31725|||Katian||||deposition|Katian||||||114|NSW|Yes|38219|38219|Webby B.D., Packham G.H.||Russell, T.|12-FEB-82||Well-bedded, fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Fosters Creek Conglomerate|23600|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Campbells Group|3427|||Ludlow|||inferred, geological correlation|deposition|Wenlock|||inferred, geological correlation|||300|NSW|No|42712||Henderson T. Wyborn D.|19-APR-93|||BLAYNEY 1:100 000 sheet, DESC in 94/27645. Previously of the Mumbil Group.|Massive, matrix-clast supported, polymictic conglomerate, pebbly sandstone and cherty siltstone; well rounded-angular clasts include crystal rich-fine grained andesite, feldspathic sandstone, quartzose sandstone and minor chert and cherty siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Fountain Dale Tuff Member|26560|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Majuba Volcanics|27473|||Lochkovian||||eruption|Lochkovian||||||||No|9548||||||Lith desc from GSNSW seamless geology 2023.|Rhyolitic vitric tuff, lithic-crystal tuff. Minor volcanic breccia, and coherent rhyolite volcanic rocks.||||N||10-SEP-23
Fountaindale Granodiorite|79848|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Wenlock|424.7|1.5|isotopic, Re/Os|alteration|Wenlock|420|2|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation||||No|67416|||||||Medium to fine grained biotite- and hornblende-bearing granodiorite.  Moderately oxidised calc-alkaline I-type of medium-K calc-alkaline character.  Ie Compositionally similar to other "intrusion related gold deposits".|acid intrusive rock|||Y|I-type|17-JAN-23
Four Bull Granodiorite|77435|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lopingian||||intrusion|Lopingian|258.4|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|05-MAY-11|||New England Orogen. Previously considered to be of Herries Supersuite, but no longer grouped. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|White to pink, medium- to fine-grained, equigranular to mildly porphyritic, leucosyenogranite to leucomonzogranite, and possibly granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Four Mile Creek Subgroup|28559|Four Mile Creek Formation|6872|||Yes|Subgroup|Formal|Variation of published name|Described|Tomago Coal Measures|18289|||Late Permian|||||Late Permian|||||||NSW|No|42214||||||Both Formation and Subgroup in use in the 1990s but  Subgroup now preferred by GSNSW [14-JUN-2012].|Interbedded fine- to medium grained sandstone with grey sporadically laminated shale, coarse-grained sandstone, dull coal with minor bright bands, carbonaceous shale and mudstone, sideritic bands, minor claystone (white to brown to grey) and siltstone|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Four Winds Ignimbrite Member|69885|||||Yes|Member, phase|Formal|Other new published name|Defined|Quialigo Volcanics|69864|||Devonian||||eruption|Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Part of the Bindook Group.|Green-grey, lithic-crystal-rich dacitic welded ignimbrite and dacitic volcanic breccia.|acid volcanic rock|||N||17-JAN-23
Fowlers Gap Formation|27409|Fowlers Gap Beds|6878|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Farnell Group|6531|||Neoproterozoic||||deposition|Neoproterozoic||||||1500||No|30261|||||||Purple, yellow shales bleached white in outcrop, interbedded with massive quartzite.|siliciclastic sedimentary rock|||N||17-JAN-23
Fox Tor Quartz Diorite|82448|Fox Tor Diorite|39666|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Triassic|239.7|6.7|isotopic, K/Ar||Lower Triassic||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Grey, medium- to coarse-grained, equigranular to slightly porphyritic, two-pyroxene-hornblende-biotite quartz diorite; locally flow-aligned and hybridised variants. I-type.|intermediate intrusive rock|||Y|I-type|24-AUG-23
Foybrook Formation|26561|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Vane Subgroup|26973|||Late Permian||||deposition|Late Permian||||||300||No|29942|||||||Lithic sandstone, siltstone, shale, conglomerate and coal seams.|siliciclastic sedimentary rock|||N||17-JAN-23
Frampton Volcanics|6881|Gooandra Volcanics|26266|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Late Silurian|420.1|1.7|isotopic, U/Pb-Pb/Pb ion probe|eruption|Llandovery|428|6||||||No|29682||||||Mapped as part of Gooandra Volcanics below Jackalass Slate and Bumbolee Creek Formation by Stuart-Smith (1990b), with a SHRIMP zircon age of 425Ma - a controversial interpretation. Unclear waht part of the Framption Volcanics was dated.|Rhyolite, rhyodacite, dacite, quartz-feldspar sandstone, siltstone, volcaniclastic and polymictic conglomerate, numerous rhyolitic and rhyodacitic dykes, limestone|acid volcanic rock|siliciclastic sedimentary rock|oceanic backarc|N||18-AUG-23
Frazer Beach Member|80988|||||Yes|Member, phase|Reserved|Reserved|Reserved|Dooralong Shale|24252|||Lower Triassic|||||Late Permian||||||||No|||Nicoll, R. (GA)|15-APR-19||||||||N||17-JAN-23
Free Damper Monzogranite|77023|Free Damper Adamellite|32241|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Free Damper Suite|31577|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. State list map symbol suggests this unit now (2012) regarded as Devonian. Published in GSNSW seamless geology.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|29-SEP-23
Free Damper Suite|31577|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian|||||Devonian||||||||No|42726|||||||Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y||17-JAN-23
Freyers Metasediments|23602|||||Yes|Formation, beds|Formal|Other new published name|Defined|Purnamoota Subgroup|15683|||Paleoproterozoic||||deposition|Paleoproterozoic|1750|||maximum depositional age||500|NSW|No|38969|39662|B.P.J.Stevens|25-JAN-82|||Within the Broken Hill Group. Max depositional age: ~1750Ma.|Psammitic to pelitic/psammopelitic metasediments. Minor tourmaline-quartz rocks. Rare basic gneiss and quartz-gahnite rock.|metasedimentary siliciclastic rock||continental rift|N||17-JAN-23
Friendly Coal Member|80151|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Rowan Formation|26878|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Frog Hollow Formation|35359|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Eifelian||||deposition|Emsian||||||||No|23185|||||||||||N||17-JAN-23
Frogs Hollow Granodiorite|21817|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Ilsley D., Lewis P.|14-FEB-80|||BD as Frogs Hollow Granite in Chappell et al (1991) - formal name not intended. Name not currently used by GSNSW [May 2011-Aug 2012]|Biotite-hornblende granodiorite|acid intrusive rock|||Y||17-JAN-23
Frome Hill Formation|6926|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Bungonia Group|34589|||Lochkovian||||deposition|Ludlow||||||565||No|40698|||||||Basal sequence of fossiliferous limestone and interbedded calcareous sandstone; locally overlain by a siliciclastic succession of siltstone, shale and minor sandstone, or a micritic limestone with mass flow units with limestone and chert pebbles.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Fullerton Cove Coal Member|77586|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Dempsey Formation|5365|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Thin bright coal bands, sporadic dull bands and rare carbonaceous shale bands|organic rich sedimentary rock|||N||17-JAN-23
Fullerton Gneiss|42437|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Tumboramboro Suite|69874|Devonian|||||Devonian||||||||No|64238||Thomas, O.|11-JAN-05|||Map sheet 8829; nearest town is Laggan.|Grey-brown metasedimentary composite gneiss with minor migmatite, quartzo-feldspathic segregation veins and pods of equigranular biotite-quartz-feldspar xenolithic granodiorite.|foliated metamorphic rock|high grade metamorphic rock||N||17-JAN-23
Funeral Creek Limestone|39276|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Kayrunnera Group|9352|||Late Cambrian||||deposition|Late Cambrian||||||||No|24241|66623|||||Related to Funeral Creek Volcanics? Very unlikely! See also Funeral Creek Formation.|An isolated overturned allochthonous pod of fossiliferous limestone with a distinctive brecciated appearance, composed of subrounded to tabular clasts of carbonate up to 20cm long.|carbonate sedimentary rock|||N||17-JAN-23
Fyshwick Gravel|6942|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Miocene||||deposition|Paleocene|||||||ACT|No|44970|44970|||||Permian age refuted by.Jennings (1972) and Ollier and Brown (1975). Age uncertain but likely to be in the Paleocene- Miocene range.|Quartz pebble gravel, coarse sandstone.||||N||17-JAN-23
Gabo Suite|6947|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42827|||||||Granite, monzogranite, biotite monzogranite; A-type subvolcanic granites.|acid intrusive rock|||Y|A-type|17-JAN-23
Gaden Tonalite|28226|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Hornblende and biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Gairdners Creek Quartzite|26565|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Teamsters Creek Subgroup|17916|||Neoproterozoic|||||Neoproterozoic||||||4||No|30261|||||||Massive to weakly bedded, well-sorted quartzite with local, well-rounded quartz cobbles.|siliciclastic sedimentary rock|||N||17-JAN-23
Galambo Granite|73371|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tarcoon Suite|77133|||Lochkovian|417.8|3.2|isotopic, U/Pb|intrusion|Pridoli|||||||NSW|No|70941|71345|Trigg, S. (GSNSW)|24-MAY-07|||For use on BYROCK map sheet; nearest town is Bourke. To be pub: BYROCK Sheet Explan. Notes (2008), GSNSW. Large igneous body known from drilling and geomagnetics. Published informally (mentioned) as Galambo granite in RefID 68823. Named after the Galambo property, whose homestead is situated over the granite. Type location/section: RAB hole CAC 5.5, 50-66 m (EOH) as proposed by Trigg (in Burton et al., 2012); collared at Lat -30.4719° Long 145.9353° GR 397800 6628430.|Mostly hornblende granodiorite; also adamellite, syenite, biotite granite; strongly magnetic|acid intrusive rock|||Y||17-JAN-23
Galloping Swamp Coal Member|77592|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after  R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012.|Coal: bright bands and dull stoney bands, coaly shale with sideritic inclusions, carbonaceous shale|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Galore Hill Sandstone|82452|Galore Hill Formation|79860|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Mulga Downs Group|26063|||Eifelian|||inferred||Emsian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, to replace Galore Hill Formation, established in 2017, 2018.|Thin (<5 to 15m thick), irregularly developed basal pebble to cobble conglomerate (predominantly quartz clasts) that fines up into fine- to medium-grained quartz-rich sandstone and siltstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Gambier Limestone|6976|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Heytesbury Group|8311|||Early Miocene||||deposition|Oligocene||||||400|SA|No|43466|42966|||||Of Murray Group in Murray Basin & Glenelg Group, Otway Basin & Heytesbury Group, Gambier Basin. See also Lexicon.  Age: 27.5-~24Ma to ~33-15Ma [from 1995 reference]. Interfingered with Naracoorte Limestone. See also: Compton Sandstone - Trade name only - produced from the Gambier Limestone (see RefID 68211)|Includes grey, cream bryozoal limestone, dolomitic in part, with minor glauconite; fossiliferous. Open marine shelf.|carbonate sedimentary rock|||N||17-JAN-23
Gamboola Shale|37403|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|23214||||||Bathurst Area||siliciclastic sedimentary rock|||N||17-JAN-23
Ganantagi Granite|6987|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|43510||||||Forbes 1:250 000 sheet area.|Peralkaline granite|acid intrusive rock|||Y||17-JAN-23
Gang Gang Monzogranite|76951|Gang Gang Adamellite|6988|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Late Silurian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Biotite-muscovite monzogranite, sodic leucogranite|acid intrusive rock|||Y||30-SEP-23
Ganmain Granite|23607|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Tom Groggin Suite|18286|Late Silurian||||intrusion|Late Silurian|428.7|1.8|isotopic, U/Pb|||||No|42726||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. BD in Chappell et al (1991), but formal name not intended.|Light grey, medium- to coarse-grained, inequigranular cordierite-biotite granite with biotite-rich schistose, and xenolithic quartz, enclaves; weakly K-feldspar-megacrystic felsic granite. Aplite dykes. S-type.|acid intrusive rock|||Y||23-AUG-23
Gap Road Conglomerate|6992|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|42214|||||||||||N||17-JAN-23
Gap Sandstone|6993|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wallerawang Subgroup|19281|||Late Permian||||deposition|Late Permian||||||13|NSW|Yes|44026||Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83|Wallerawang Subgroup, Illawarra Coal Measures.|Lithic, medium-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Gara Monzogranite|41058|Gara Adamellite|6994|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Gara Suite|73915|Permian||||intrusion|Permian||||||||No|24366||||||Formerly in the Hillgrove Suite; now in the Gara Suite, of Hillgrove Supersuite.|Biotite monzogranite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Garibaldi Monzogranite|77016|Garibaldi Adamellite|27412|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Hillgrove Supersuite|67847|Permian|||inferred|intrusion|Permian|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Previously shown as Permian but given Carboniferous symbol by GSNSW MAY-2011. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y|S-type|17-JAN-23
Garie Formation|7014|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Gosford Subgroup|7628|||Middle Triassic||||deposition|Olenekian|248.33|.13|isotopic, U/Pb-Pb/Pb, TIMS|||8||No|31297|||||||Clay pellet sandstone, dark lithic fine sandstone, chocolate claystone bands.|siliciclastic sedimentary rock|||N||17-JAN-23
Garland Granodiorite|21833|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|22679||Close R., Henderson G.A.M.|06-JUN-77|||Card. BD as Garland Granite in Chappell et al (1991). Reverted to Granodiorite in Bathurst 1:250 000 map notes. Previously only unit in Garland Suite.|Leucocratic, foliated, porphyritic to granophyric, hornblende biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Garoo Conglomerate Member|7019|Garoo Conglomerate|7020|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Tangaratta Formation|17776|||Tournaisian||||deposition|Tournaisian||||||||No|43399|43399||||||Polymictic conglomerate in argillaceous matrix and some lithic arenites|siliciclastic sedimentary rock|||N||17-JAN-23
Garra Formation|7025|Garra beds|7027|||Yes|Formation, beds|Formal|Variation of published name|Defined|Gregra Group|7789|||Emsian||||deposition|Lochkovian||||||1015|NSW|No|43521|43522|||||Defined 1965. See also Garra Limestone.  Includes Pragian vertebrate fossil fauna.|Fossilerous limestone with minor cherty and volcaniclastic sandstone, fissile shale and marly siltstone, with minor rare tuff.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Garrawilla Volcanics|27082|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Toarcian|177.9|1.9|isotopic, K/Ar|eruption|Norian|203.2|2.1|isotopic, K/Ar|||180|NSW|No|43355|30610|||||Basal unit of the Surat Basin and overlies the top units of the Gunnedah Basin beneath.|Dolerite, basalt, trachyte, tuff, breccia.|basic volcanic rock|basic intrusive rock||N||27-AUG-23
Gatelee Ignimbrite|25718|Gatelee Andesite""|7045|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||Boggy Plain Suite|2091|Lower Devonian||||deposition|Lower Devonian|||||||NSW|No|29992|42313|||||Correlates with Cowcumbala Rhyolite|Porphyritic ashflow rhyolitic ignimbrite, polymictic conglomerate|acid volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Gattamurh Granite|7046|Willis Granite|20092|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Early Silurian||||intrusion|Early Silurian||||||||No|42726||||||Briefly described. Also called Gattamurrh Granite [by whom??]. Age updated from GSV data (HG, Dec 2005).|Granite|acid intrusive rock|||Y|I-type|17-JAN-23
Gatton Sandstone|7050|Gatton Sandstone Member|7048|||Yes|Formation, beds|Formal|Variation of published name|Defined|Marburg Subgroup|11255|||Toarcian||||deposition|Pliensbachian||||||800|QLD|Yes|44026|42248|Wells A.T.|01-MAR-88|NSW SNSC|27-FEB-91|Of the Bundamba Group. Aquifer: generally artesian.Clarence-Moreton Basin.|Thin- to thick-bedded, coarse- to medium-grained, feldspathic to lithic feldspathic sandstone with clay matrix; subordinate intervals of granule, pebble and minor cobble polymictic conglomerate, with abundant ferruginised fossil wood logs and fragments.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock|oceanic backarc|N||17-JAN-23
Gatum Gully Member|23610|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||Late Permian||||deposition|Late Permian||||||||No|33476||Thomson, J.|24-AUG-77|||Card. This name appears to have been published in 1976? Drake area, nthn NSW.|Rhyolitic to rhyodacitic tuffs, agglomerates, breccias and conglomerates.|acid volcanic rock|||N||17-JAN-23
Gearys Gap Formation|26305|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Weereewa Group|77796|||Piacenzian||||deposition|Zanclean|3.93|.36|isotopic||58|110|NSW|Yes|40664|42820|Abell, R.S.|13-SEP-84|||Publ in AJES 33(2), Walker & Taylor Ref 86/25576.  To be Publ. in BMR Bull 233. Approved by A. Waltho 17-MAY-1990? Maximum thickness increased in RefID 61155 to110m.|Deeply weathered, horizontally bedded sands and subrounded, poorly sorted quartz-rich gravels and minor silt and clay strata. Fluvial sands and gravels.|regolith|||N||20-AUG-23
Geehi Granite|7086|Geehi granite|7089|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|29953|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Geera Clay|7090|||||Yes|Formation, beds|Formal|Other new published name|Defined|Murray Group|13544|||Middle Miocene||||deposition|Chattian||||||150|VIC|No|29898|42966|||||Included in the Murray Group stratigraphic scheme by Lawrence (1966), retained through the various revisions of the Murray Group up to Murray Supergroup; and is now included in the reinstated Murray Group in South Australia. The revision of the Murray Group stratigraphy by Lukasik and James (1999) upgrading to Murray Supergroup, included this unit in its definition, along with Ettrick and Winnambool Formations.|Carbonaceous silts and minor carbonates; massive pyritic clays with minor sand and silt layers. Sparse marine fossils.|regolith|carbonate sedimentary rock||N||17-JAN-23
Geneffe Shale|7118|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||deposition|Silurian||||||||No|43476||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Genowlan Formation|30747|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kandos Group|29513|||Emsian|404.3||biozone|deposition|Pragian|408.4||biozone|||||No|43363||||||Jenolan Beds?Probably not. Used in GSNSW seamless geology dataset 2021. Age range given as Polygnathus pireneae (base) to Polygnathus dehiscens (top). Numerical age range from Seamless dataset..|Medium- to coarse-grained immature volcanic rich sandstone, pebbly sandstone and minor pebble to cobble conglomerate with rhyolitic to dacitic volcanic clasts.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gentle Annie Porphyry|37719|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Middle Devonian||||eruption|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005).|Quartz porphyry: pale cream coloured; bipyramidal quartz phenocrysts in an aphanitic groundmass; small cubic moulds after ?pyrite; moderately altered; nonmagnetic||||U||20-JUL-23
Geordies Spur Gabbro|32273|Gordies Spur Gabbro|23632|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|44092|||||||Gabbro, diorite, metabasic intrusives, pyroxenite|basic intrusive rock|||Y||17-JAN-23
Georges Bore Granite Gneiss|70111|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Silver City Suite|70121|Statherian|1695|4|isotopic, U/Pb-Pb/Pb ion probe||Statherian|1695|4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|64944|64097|Stevens, B. (NSWGS)|01-MAR-06|||Intrudes Thackaringa Group and Broken Hill Group. Geological province: Broken Hill Domain.|Consists of apparently irregular areas of megacryst-rich and megacryst-poor quartz - feldspar - biotite gneiss, and minor garnet-bearing gneiss.|foliated metamorphic rock|||Y||17-JAN-23
Georges Knob Conglomerate Member|28570|George's Knob Conglomerate Member|31976|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Basin Creek Formation|1237|||Triassic||||deposition|Triassic||||||||No|34340||||||Lith desc from GSNSW seamless geology 2023.|Pebble conglomerate, minor claystone, siltstone, sandstone.||||N||27-AUG-23
Georgica Rhyolite Member|7133|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kyogle Basalt|25142|||Miocene|20||isotopic, K/Ar|eruption|Miocene|23||isotopic, K/Ar||||NSW|Yes|30604||Duggan M.B., Mason D.R.|20-OCT-76|Hawke, J.|08-DEC-76|Of Kyogle Basalt, Lamington Volcanics (source of age information).||acid volcanic rock|||N||17-JAN-23
Gerar Igneous Complex|78244|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Nyngan 1:25k sheet area. Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Used in GSNSW seamless geology dataset 2021, 2023.|Ultramafic igneous rock.|ultramafic igneous rock|||Y||13-JUN-23
Gerringong Volcanics|7155|Gerringong volcanics|7157|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Permian|258|||eruption|Late Permian|264||||||NSW|No|43346|43346|||||See also Lexicon. SI56-9.  Collective term for 6 latite flows interbedded within the Broughton Formation, and 4 flows within the overlying Pheasants Nest Formation. [advice from J.Greenfield, R.Cameron GSNSW OCT-2010]|Latite, trachyte tuff with pebbly bands.|intermediate volcanic rock|||N||17-JAN-23
Gerybong Limestone Member|7159|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|33063|33063|||||Lithology description from GSNSW seamless geology 2023.|Dark grey, thin- to thick-bedded limestone, lime mudstone (mainly burrowed) and skeletal wackestone.|carbonate sedimentary rock|||N||28-SEP-23
Getty Gabbro|83228|Getty gabbro|78378|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Triassic|280|120|isotopic, U/Pb-Pb/Pb ICP-MS||Ediacaran|535|19|isotopic|intrusion||||No|73175||||||Previously considered to be Neoproterozoic, but may include xenocrystic zircons from Cobar Basin sedimentary rocks, and so may actually be Permo-Triassic.|?Includes monzodiorite andalkaline gabbro.|basic intrusive rock|||N||17-JAN-23
Ghangat Basalt|37290|Ghanghat Basalt|69999|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||eruption|Middle Devonian||||||||No|24008||||||This spelling matches current (2009) place name spelling. It is unclear whether this is a misspelling of the Ghanghat Basalt (publ. 1999), or a correction of  an original misspelling.||basic volcanic rock|||N||17-JAN-23
Ghanghat Basalt|69999|Ghanghat Spilite|69996|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||eruption|Middle Devonian||||||||No|61766||||||See also Ghangat Basalt, which is the current (2009) correct place name spelling.||basic volcanic rock|||N||17-JAN-23
Ghost Hill Formation|7161|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cudal Group|4974|||Silurian||||deposition|Silurian||||||140||No|43515||||||Bathurst 1:250 000 sheet area. Intrudes Woodstock and Burley Limestones.  Not to be confused with Ghost Rocks Granite, reserved for Map sheet 8829.|Lithic, feldspathic and quartz arenite, coarse quartzofeldspathic arenite, minor laminated chert.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Ghost Rocks Granite|42501|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Tumboramboro Suite|69874|Devonian||||intrusion|Devonian||||||||No|64238||Thomas, O.|17-JAN-05|||Not to be confused with Ghost Hill Formation in the Cudal Group.  Map Sheet 8829, nearest town is Laggan.|Grey-brown mylonitised muscovite-biotite-quartz-feldspar megacrystic granite. Rounded K-feldspar porphyroblasts (up to 50mm), and plagioclase crystals in a foliated groundmass of biotite and muscovite folia and ribbons of recrystallised quartz.|acid intrusive rock|||Y||17-JAN-23
Giants Den Leucosyenogranite|82450|Giants Den Leucoadamellite|23613|||Yes|Formation, beds|Formal|Variation of published name|Described|||Glenclair Suite|67900|Cisuralian|||inferred||Cisuralian|288.7|1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine- to medium-grained, porphyritic to even-grained leucosyenogranite; minor leucomonzogranite. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Gibbons Creek Sandstone|7165|Cox Subgroup|34686|||Yes|Formation, beds|Formal|Other new published name|Defined|Lambie Group|10103|||Upper Devonian||||deposition|Upper Devonian||||||1300||No|32708|23170|||||Formerly the "Cox Subgroup" of Conolly (1962, 1969a,b).|Fossiliferous quartz arenite, siltstone, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Gibraltar Granite|26570|Gibraltar Adamellite|25003|||Yes|Formation, beds|Formal|Variation of published name|Described|||Thurralilly Suite|75928|Lower Devonian|||inferred|intrusion|Pridoli|||inferred|||||No|42726||||||Formal name not intended by Chappell in 1991, but subsequently adopted by GSNSW.|Strongly-foliated, medium- to coarse-grained biotite granite, with mafic-rich xenoliths.|acid intrusive rock|||Y||17-JAN-23
Gibraltar Ignimbrite|7167|Gibraltar Rhyolite|7169|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Wandsworth Volcanic Group|29113|||Lower Triassic||||eruption|Lopingian|251.6|3.2|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation||80||No|31694||||||New England region. Not related to Gibraltar Adamellite or Gibraltar Creek Gabbro.|Ignimbritic rhyolite.|acid volcanic rock|||N||17-JAN-23
Gibsonvale Formation|35899|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Neogene||||deposition|Cenozoic|||||||NSW|Yes|61964|61964|Meakin S.|01-MAY-01|||Alluvial sequence which hosts tin deposits in the Cargelligo 1:250 000 sheet area.|Cream to white coarse quartz sandstone to gravel, mottled red-brown in places; hosts cassiterite concentrations.|siliciclastic sedimentary rock|||N||17-JAN-23
Gidginbung Volcanics|21844|||||Yes|Formation, beds|Formal|Resvd name published|Described|Cowal Igneous Complex|37285|||Llandovery|435|5||eruption|Llandovery|439|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes|Andesite, trachyandesite, volcanic chert, breccia, ?dacite.|intermediate volcanic rock||island arc|N||17-JAN-23
Gidya Gossan Member|35633|||||Yes|Member, phase|Reserved|Reserved|Reserved|Grasmere beds|35626|||||||deposition|||||||||No|||Buckley P.M.|15-NOV-00|||Of Palgamurtie Subgroup, Ponto Group, Koonenberry Belt. Koonenberry 1:250 000 sheet area. Age Middle Cambrian? to Ordovician?|||||N||17-JAN-23
Gidyen Volcanic Member|73666|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Triangle Formation|29502|||||||eruption|||||||||No|63278||||||Never formally defined and appears to represent an admixture of allochthonous debris indistinguishable from the Rockley Volcanics.|Consists of massive pyroxene basalt lavas and breccias with clasts of lava and chert.|basic volcanic rock|||N||17-JAN-23
Gilgai Leucogranite|82453|Gilgai Granite|7218|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Triassic|||inferred||Lopingian|252.2|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pink to grey, microgranitic to coarse-grained, porphyritic to equigranular biotite-(hornblende) leucogranite; contains abundant miarolitic cavities and granophyric intergrowths. I-type.|acid intrusive rock|||Y|I-type|20-AUG-23
Gilgal Formation|25923|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Wenlock||||deposition|Wenlock||||||600|NSW|No|43476|40328||||||Shale, siltstone, rhyolitic tuff, lithic sandstone, volcaniclastic sandstone, quartzose sandstone, phyllite.|fine grained siliciclastic rock|||N||17-JAN-23
Gilgoenbon mafic-ultramafic|82530|Gilgoenbon Igneous Complex|77340|||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. further downgraded in GSNSW seamless geology dataset 2023 to 'Westlyn Igneous Complex - Gilgoenbon mafic-ultramafic', but still a member level unit of the Westlyn Igneous Complex.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||U||13-JUN-23
Gilgunnia Granite|7222|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Late Silurian|422.5|3.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|43389|41821|||||A high-level pluton that is  the same age and inferred to be co-magmatic with Mount Halfway Volcanics. Is petrographically and chemically related to the Mount Halfway Volcanics.  A sample from unnamed granite from the R7 Prospect, north of Gilgunnia Granite, gave a magmatic crystallisation age of 422.8+/-4.9 Ma.|Coarse-grained equigranular cordierite-biotite granite and monzogranite, minor fine-grained sparsely porphyritic biotite granite, porphyritic microgranodiorite and occasional latite dykes (S-type)|acid intrusive rock|||Y|S-type|17-JAN-23
Gilgurry Mudstone|7225|Gilgurry Formation|7224|||Yes|Formation, beds|Formal|Other new published name|Defined|Wandsworth Volcanic Group|29113|||Late Permian||||deposition|Late Permian||||||573|NSW|No|43385|33476||||||Dark grey to green siltstone, siliceous and calcareous mudstone and minor light brown feldspathic sandstone. Mudstone massive and poorly bedded, where calcareous is light grey and contains abundant fossil fragments.|fine grained siliciclastic rock||retro foreland basin|N||17-JAN-23
Gillenbah Granite|79855|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ludlow|||||Wenlock|427||isotopic, U/Pb-Pb/Pb ion probe|||||No|72083||Trigg, S. (GSNSW)|13-JUN-17|||Stands out in magnetic imagery. Simon B. has managed a provisional  SHRIMP age from drill chips - 427 Ma [June2017]. New name; from Gillenbah locality a few kms SW of Narrandera. Previously known only from drill core.|Mylonitic granite. Coarse grains of feldspar and muscovite; quartz and ?tourmaline also present.|acid intrusive rock|||Y||06-SEP-23
Gillieston Sequence|36329|||||Yes|Formation, beds|Sequence stratigraphy|Other new published name|Briefly described||||||||||||||||||No|23540|||||||||||N||17-JAN-23
Gilmore Hill Suite|69147|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Famennian|365|4|isotopic, Rb/Sr|intrusion|Famennian||||||||No|60423||||||No longer considered part of the Temora Complex/Narraburra Complex in GSNSW Seamless 2021.|Sodic I type granites||||Y||17-JAN-23
Gilmore Volcanic Group|7238|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||||No|44253|44254|||||See also Gilmore Volcanics.|Pink to brown lithic sandstone, tuffs, rhyodacitic lavas, volcanic breccia, conglomerate|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Gilwhite Limestone|35360|Gilwhite Limestone Member|30921|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Eifelian||||deposition|Emsian||||||||No|23185||||||||carbonate sedimentary rock|||N||17-JAN-23
Gindoono Limestone|7248|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34449||||||||carbonate sedimentary rock|||N||17-JAN-23
Gingara Granite|7249|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Devonian||||intrusion|Devonian||||||||No|29992||||||||acid intrusive rock|||Y||17-JAN-23
Gingenbullen Dolerite|7250|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Jurassic||||intrusion|Jurassic||||||||No|43870||||||To be replaced by Mount Gingenbullen Tholiite, but both names used in GSNSW seamless geology dataset 2021.|Tholeiitic dolerite; dark medium to fine-grained holocrystalline magnetite and olivine bearing rock; columnar jointing.|basic intrusive rock|||Y||17-AUG-23
Gingera Granite|7253|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||intrusion|Silurian||||||||No|39800|||||||Foliated granodiorite.|acid intrusive rock|||Y||17-JAN-23
Ginini Leucomonzogranite|77014|Ginini Leucoadamellite|27157|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology.|White, medium-grained, biotite-poor, leucomonzogranite, aplite|acid intrusive rock|||Y|I-type|06-SEP-23
Ginninderra Porphyry|7262|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Ludlow||||intrusion|Ludlow|||||||NSW|No|36441|45147|M.Owen|27-AUG-74|||Card.|Intrusive red porphyry with quartz, plagioclase and mafic phenocrysts, rare K-feldspar megacrysts|acid intrusive rock|||Y|I-type|17-JAN-23
Girard Creek Diorite|82455|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Light to dark grey, fine- to medium-grained, equigranular clinopyroxene-orthopyroxene-hornblende-biotite diorite to quartz diorite. Thrust-faulted and weakly jointed.|intermediate intrusive rock|||Y||24-AUG-23
Girilambone Group|27158|Girilambone Beds|7283|||Yes|Group, Suite|Formal|Variation of published name|Defined|Lachlan Supergroup|82541|||Darriwilian|||inferred, biostratigraphic correlation|deposition|Tremadocian|484||isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||3000|NSW|No|43384|24417|||||Defined 1965. Redefined 1987, 2000. Originally named "Girilambone Series".  Also previously termed "Girilambone Beds" by Brunker (1969). Correlative of the Jindalee Group. Max age from youngest concordant detrital zircon age [RefID 69002 (2010)]. Proposed to be included in the Lachlan Supergroup in 2018, and confirmed in GSNSW Seamless Geology 2021.|Deformed and metamorphosed, micaceous, quartzose and quartz-lithic sandstone, pelite, chert; minor intercalations of polymictic conglomerate, siltstone, quartzite, and mafic and intermediate volcanics; black shale.|metasedimentary siliciclastic rock|basic volcanic rock|oceanic backarc|N||04-AUG-23
Giro beds|7292|Giro Beds|7290|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Manning Group|11186|||Kungurian||||deposition|Asselian||||||||No|41348|||||||Diamictite, polymictic conglomerate, grey lithic sandstone, massive and laminated siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Girrakool beds|7295|Girrakool Beds|25011|||Yes|Formation, beds|Informal|Other new published name|Fully described|Coffs Harbour Association|38341|||Permian|||||Pennsylvanian||||||||No|37489|||||||Lithofeldspathic wacke, slate, minor chert, rare mafic and felsic volcanics.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock|accretionary wedge|N||17-JAN-23
Girrakool beds, Agnes Greywacke|42292|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Coffs Harbour Association|38341|||Pennsylvanian||||deposition|Pennsylvanian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Lithofeldspathic wacke, slate, minor chert, rare mafic and felsic volcanics|medium-coarse grained siliciclastic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Gladefield Volcanics|7302|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Late Silurian||||eruption|Silurian||||||||No|12185|||||||Acid lavas, tuff, ashstone, interbedded shale.|acid volcanic rock|||N||17-JAN-23
Gladstone Formation|7306|Toll Bar Formation|18267|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Barra Group|24695|||Late Permian||||deposition|Late Permian||||||250|NSW|Yes|43385||Lowe S.P.||NSW SNSC||Of Hanlon, 1949. Superseded by Watermark Formation? Defn from Lowe's 1971 UNE BSc(Hons) thesis? See also Lexicon.|||||N||17-JAN-23
Gleamwoods Monzogranite|82457|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Gleamwoods Suite|82458|Permian|||inferred||Permian|||inferred|||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021.|Pale pinkish-grey, fine- to medium-grained, highly porphyritic monzogranite; locally, flow alignment of phenocrysts and granophyric groundmass; mafic inclusions are common. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Gleamwoods Suite|82458|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Sailor Jack Supersuite|82412|Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Glebe Formation|7326|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|34351||||||Of Adamstown Subgroup, Newcastle Coal Measures. This name was dropped ~1999. Included Redhead Conglomerate Member, Edgeworth Tuff Member, Tingira Conglomerate Member. Name apparently reinstated when Adamstown Subgroup reinstated (2015): RefID 70647. No longer includes Redhead Conglomerate Member. Updated from  GSNSW seamless geology dataset 2021.|Polymictic conglomerate, sandstone, shale and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||02-SEP-23
Gleesons Limestone Member|24286|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician||||||20|NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden. See also Gleesons Member.||carbonate sedimentary rock|||N||17-JAN-23
Glen Allyn Ignimbrite Member|40761|Glen Allyn|39895|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian||||intrusion|Serpukhovian|||||5|35|NSW|Yes|50613|50613|Roberts, J,|16-DEC-03|NSW SNSC|07-APR-04|Named after a Homestead in NSW not location in QLD. reserved as Glen Allyn. Volcanic member of the Gunnan package (informal grouping of stratigraphically recognisable distinctive, mappable units). Used in GSNSW seamless geology dataset 2021.|Lower part with small plagioclase and K-feldspar phenocrysts, and small orientated, elongate pumice fragments; upper part with coarser shards and slightly larger and more abundant phenocrysts and pumice fragments.|acid volcanic rock|||N||17-JAN-23
Glen Ayr Syenite|21854|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|22679|23214|Henderson T. Wyborn D.|19-APR-93|||Blayney 1:100 000 sheet. Intrudes the Weemalla Formation and Forest Reefs volcanics.|Biotite syenite, biotite clinopyroxene monzonite|intermediate intrusive rock|||Y||17-JAN-23
Glen Bell Formation|70279|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Silurian||||deposition|Upper Ordovician||||||||No|65398|65398|Brown, R. (NSW GS)|28-APR-06||||Limestone, limestone conglomerate, sandstone,siltstone, argillite, mafic volcanic rocks|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Glen Bower Formation|28309|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Douro Group|5668|||Wenlock|||inferred|deposition|Wenlock|||inferred|||1500|NSW|No|32675|45147|||||The majority of this unit was included into the Yass Formation and in part  the Glen Bower Member on the Yass 100K sheet, 2003 (refid 50230), but this change has been rescinded [2012, 2013]. Originally Glenbower Formation (Shearsby, 1905); later they were named Glen Bower Beds (Harper, 1909). Currently Glen Bower Formation (Pogson and Baker, 1974), and more recently Goulburn 1:250k notes & map, 2012, 2013.|Laminated, tuffaceous mudstone; thinly bedded, interbedded quartz lithic sandstone and mudstone; coarse grained cross stratified-planar laminated quartzose sandstone. Algal and biohermal limestone, mudstone with carbonate nodules and lenses.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Glen Davis Formation|24610|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian||||||26|NSW|Yes|39232|40806|C.Bembrick|19-JUN-80|Russell, T.|13-JUL-83|Western Coalfield of Sydney Basin. Formerly part of Charbon Sub-Group.|Coal, carbonaceous claystone, claystone and siltstone and sandstone.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Glen Eden Granite|74801|Glen Eden granite""|38330|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Triassic|240|1|isotopic, Ar/Ar|intrusion|Lower Triassic|240|1|isotopic, Ar/Ar|||||No|61804|||||||Porphyritic microleucogranite.|acid intrusive rock|||Y||17-JAN-23
Glen Eden Microleucogranite|82750|Glen Eden Granite|74801|||Yes|Formation, beds|Formal|Variation of published name|Described|||Stanthorpe Supersuite|73988|Permian|||inferred||Permian|270||isotopic, Re/Os|alteration||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021. This intrusion is not exposed as the surface, but is intersected in drill core. Documented occurrences comprise a series of dykes at depths of more than 80 m. These dykes are interpreted as representing the roof zone of the intrusion (e.g., Somarin, 1998).|Three phases of intrusion are detailed: fine- to very fine-grained, biotite microgranite porphyry, micrographic granite, and aplite.|acid intrusive rock|||Y||17-JAN-23
Glen Emu granite|80453|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glen Emu granite suite|80442|Silurian|||inferred||Silurian|||inferred|||||No|70718||||||Balranald 1:250 k sheet  area.|interpreted as granite or granodiorite.|acid intrusive rock|||Y||17-JAN-23
Glen Emu granite suite|80442|Glen Emu Granite Suite|76041|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Silurian|||inferred, geological correlation||Silurian|||inferred, geological correlation|||||No|70718||||||Informal name, derived from geophysics. Suite occurs across Balranald, Pooncarie, Booligal and Hay 1:250k map sheet areas.|Interpreted as granites or granodiorites.|acid intrusive rock|||Y||17-JAN-23
Glen Esk Monzogranite|77012|Glen Esk Adamellite|26576|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glen Esk Suite|74017|Upper Triassic||||intrusion|Upper Triassic|221.2|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pink, medium- to coarse-grained, porphyritic monzogranite and leucogranite, granodiorite xenolithic variant and microgranite marginal facies.|acid intrusive rock|||Y|I-type|24-AUG-23
Glen Esk Suite|74017|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Glen Esk Supersuite|82460|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|||Blevin, Bultitude & Champion|10-DEC-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007. Name is spelt Glen Esk and Glenesk in NSW, ACT, TAS, QLD, and SA.  Glen Esk appears to be more accepted due to heavier usage. Glen Esk Suite used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite and leucogranite, with finer-grained marginal variants.|acid intrusive rock|||Y||17-JAN-23
Glen Esk Supersuite|82460|||||Yes|Supergroup|Informal|Other new published name|Briefly described|||||Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite, with leucosyenogranite and leucomonzogranite.|acid intrusive rock|||Y||17-JAN-23
Glen Gallic Subgroup|27417|Glen Gallic Sub-Group|7337|||Yes|Subgroup|Formal|Unknown or process pending|Described|Wollombi Coal Measures|20362|||Late Permian|||||Late Permian||||||55||No|41010||||||See also Sub-Group, Sub-group.|||||N||17-JAN-23
Glen Garry Microleucosyenogranite|82461|Glen Garry Microleucogranite|38275|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kingsgate Supersuite|82127|Late Permian|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. GSNSW shows this unit as Middle Triassic, but other dated units in this Supersuite are Late Permian.|Pinkish, fine- to medium-grained, equigranular (saccharoidal) leucosyenogranite and rarer leucomonzogranite. I-type.|acid intrusive rock|||Y|I-type|19-OCT-23
Glen Idle Rhyolite Member|40559|Glen Idle Rhyolite|37305|||Yes|Member, phase|Formal|Variation of published name|Fully described|Clifden Formation|4147|||Namurian||||eruption|Namurian||||||||No|24605||||||Fully Described. Name changed to more clearly express rank. See previous name for definition.||acid volcanic rock|||N||17-JAN-23
Glen Logan Gravel|7343|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lutetian||||deposition|Lutetian||||||||No|34600|||||||||||N||17-JAN-23
Glen Munro Coal Member|7344|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Mount Ogilvie Formation|26055|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Glen Road Coal Member|77071|Glen Road seam|38313|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Waukivory Creek Formation|24087|||Lopingian|||inferred|deposition|Lopingian|||inferred|deposition||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin.Used in GSNSW seamless geology dataset 2021.|A composite of seams, being high- and medium-volatile bituminous coal|organic rich sedimentary rock|||N||17-JAN-23
Glen Road seam|38313|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by Glen Road Coal Member [GSNSW July-2012]|||||N||17-JAN-23
Glen Ward beds|37292|Glen Ward Beds|37165|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Late Silurian|||||Late Silurian||||||5000||No|69601||||||See also Early Devonian Glen Ward Beds.|Conglomeratic sandstones, limestones, turbidite sequence and basaltic extrusives.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Glenara Coal Member|80152|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Skeletar Formation|16963|||Cisuralian|||||Cisuralian||||||||No|70791||||||Werrie Basin. Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium.||organic rich sedimentary rock|||N||17-JAN-23
Glenariff Granite|78509|Glenariff granite|78376|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Pridoli||||magmatic crystallisation|Pridoli|422.7|2.4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|68823|71345|||||Type location: Lat: -30.7267 Long: 146.5839 (GR 460165 6600615), the collar location for drill hole Glenariff DDH1. Named for the Glenariff homestead and station; the homestead is approximately 2.5km south of the southern margin of the granite. Anomalous Cu, Pb, Zn, Ag, Sn and W were reported from the Lindsay Park prospect (Byrnes 1993, Blevin 2011),|Pink alkali feldspar granite with biotite; miarolitic upper margin; leucocratic biotite quartz monzonite reported.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenbawn oolite|7360|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|31519|||||||||||N||17-JAN-23
Glenbog Granodiorite|25013|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Glenbog Suite|7361|Lower Devonian|412|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lower Devonian|412|3|isotopic, U/Pb-Pb/Pb ICP-MS|||||No|41133||||||See also the informal Glenbog Granite.|Hornblende-biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenbog Suite|7361|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||Glenbog Supersuite|7362|Lower Devonian|||||Lower Devonian||||||||No|38822||B.W.Chappell|09-OCT-75|||Previously reserved as Glenbog.  Comprises 12 seperate plutons.|Mineral assemblage is: quartz, plagioclase, K-feldspar, sepia-brown biotite, hornblende and minor magnetite, ilmenite and allanite; titanite is absent; Granite, granodiorite, monzogranite; I-type granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenbog Supersuite|7362|||||Yes|Supergroup|Formal|Variation of published name|Described|||||Wenlock||||intrusion|Wenlock||||||||No|42827||||||Watchmaker Granodiorite may be associated with this supersuite because of its similarity to the Blue Gums Tonalite.  To be used by GSNSW on the new GOULBURN 1:250 000 sheet (2006) also. [12/05 PP].|Tonalite, granite, granodiorite.|acid intrusive rock|||Y||17-JAN-23
Glenburnie Leucomonzogranite|41059|Glenburnie Adamellite|7364|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenburnie Suite|74019|Lower Triassic||||intrusion|Cisuralian|295.2|2.3||||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.  Previously in Uralla Supersuite.|Leucocratic, approximately equigranular, biotite and biotite - hornblende monzogranite|acid intrusive rock|||Y|I-type|25-AUG-23
Glencairn Formation|70280|Glencairn Limestone|35361|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tamworth Group|17757|||Upper Devonian||||deposition|Lower Devonian||||||||No|66720||Brown, R. (NSW GS)|28-APR-06|||Supersedes Glencairn Limestone.|Volcaniclastic conglomerate, cross-bedded sandstone and minor siltstone with major limestone lenses.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||11-SEP-23
Glenclair Suite|67900|||||Yes|Group, Suite|Reserved|Other new published name|Briefly described|||Bundarra Supersuite|67901|||||intrusion|||||||||No|68005||Champion, Blevin and Bultitude|04-FEB-05|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.||igneous intrusive rock|||Y||17-JAN-23
Glenclair Syenogranite|82451|Glenclair Monzogranite|41060|||Yes|Formation, beds|Formal|Variation of published name|Described|||Glenclair Suite|67900|Cisuralian|280|1|isotopic, K/Ar||Cisuralian|288||isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to coarse-grained, porphyritic biotite-muscovite (+/- cordierite, +/- garnet) syenogranite to leucosyenogranite with lesser monzogranite-leucomonzogranite.|acid intrusive rock|||Y|S-type|17-JAN-23
Glendale Limestone Member|30043|Glendale|21864|||Yes|Member, phase|Formal|Resvd name published|Described|Carwell Creek Formation|3712|||Emsian||||deposition|Emsian||||||||No|43188||||||Invalid. Name was reserved in 1990, but usurped in 1992 by BD of Glendale Monzonite in 94/27735.|Limestone, dolomitic limestone and dolomite; rare conglomerate beds.|carbonate sedimentary rock|||N||17-JAN-23
Glendale Quartz Monzonite|29584|Glendale Monzonite|28577|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Upper Ordovician|440|||intrusion|Upper Ordovician|450|||||||No|22679||||||To replace Glendale Monzonite in the Bathurst 1:250 000 sheet area. Originally included as part of the now superseded Prince of Wales Diorite. Wholly enclosed within the Tettenhall Monzodiorite.|Quartz monzonite.|intermediate intrusive rock|||Y||17-JAN-23
Glendalough Formation|7375|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Waugoola Group|19623|||Wenlock||||deposition|Llandovery||||||132||No|35258|23214|||||Orginally included in the Panuara Formation (subsequently Panuara Group).|Shale, limestone, siltstone, calcareous and feldspathic arenite, conglomerate; contains graptolites|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Glendon Siltstone Member|7380|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Mulbring Siltstone|25303|||Guadalupian||||deposition|Guadalupian||||||||No|34043||||||Used in GSNSW seamless geology dataset 2021.|Medium-grey siltstone, characterised by very large boulder-sized calcareous globular concretions (forming smooth residual mounds in outcrop).|siliciclastic sedimentary rock|||N||24-JUL-23
Glenelg element - basement rocks 83210|83210|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||inferred||Archean|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Unit AM9 'Pre-Neoproterozoic basement'. Area based on potential field and GA crustal element Glenelg, from Archean-Paleoproterozoic polygons GSSA database. Crustal element Glenelg: pre-Neoproterozoic basement to Stansbury Basin-Kanmantoo Trough.|unknown|unknown|||U||17-JAN-23
Gleneski Formation|7410|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mumbil Group|13411|||Ludlow||||deposition|Ludlow||||||1200||No|43476|23170|||||Defining ref (Dubbo Explan Notes, 1999) makes no mention of overlying or underlying units. Cuga Burga Volcanics is from previous reference.|Rhyolitic, felsic to latitic lava, intrusives and tuff.|acid volcanic rock|||N||05-SEP-23
Glengarry Granite|7413|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Formal name not intended in Chappell et al (1991).  Name formalised on CROOKWELL 1:100 000 sheet (2000).|Coarse- to medium-grained, massive,  equigranularallanite-hornblende?- biotite granite. High K, Th and U. redioelement response.|acid intrusive rock|||Y||17-JAN-23
Glengeera Formation|28578|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Lower Devonian||||deposition|Lower Devonian||||||600|NSW|No|43476|40328||||||Purple sandstone, siltstone and shale, lithic sandstone, rhyolite, limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Glengowan Shale Member|38201|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Pinegrove Formation|15255|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|23717||||||See also Glengowan Member.|Sandstone and shale, sporadically tuffaceous.|siliciclastic sedimentary rock|||N||17-JAN-23
Glenhope granite|76033|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Appear to be informal unit based entirely on geophysics, although there may be some data from water bores?  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943. Note: no formal place of this name in Hay region.|Interpreted as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Gleniffer Monzogranite|78895|Glenifer Monzogranite|73833|||Yes|Formation, beds|Formal|Resvd name published|Described|||Hillgrove Supersuite|67847|Cisuralian||||intrusion|Cisuralian|295.5|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW), Chisholm, E. (GA)|14-JUL-14|||Champion, Blevin and Bultitude, pers.comm., Nov 2007. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition) as Glenifer Monzogranite. Name probably misspelt when first published as Glenifer Adamellite. See also Gleniffer Adamellite. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite, granodiorite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|25-AUG-23
Gleninga Formation|7420|||||Yes|Formation, beds|Formal|Resvd name published|Described|Yarra Yarra Creek Group|29299|||Emsian||||deposition|Lochkovian||||||350||No|9548||||||Used in GSNSW seamless geology dataset 2021.|Fine- to medium-grained, well-sorted quartzose sandstone; flaggy to blocky outcrop.||||N||21-JUL-23
Glenisla Volcanics|30051|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Douro Group|5668|||Wenlock||||eruption|Wenlock|432.2|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|24417|24417|Wallace D. for Lachlan NGMA project.|23-JAN-96|||Forbes 1:250 000 sheet area.  Intruded by Grenfell and Eugowra Granites.|Garnetiferous quartz-plagioclase-biotite porphyritic rhyodacite and volcaniclastic sandstone.|acid volcanic rock|||N||17-JAN-23
Glenlawn Mudstone|7422|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Goonoo Goonoo Mudstone|7573|||Tournaisian||||deposition|Tournaisian||||||||No|43417||||||In the Rouchel Block. Also included as a member of the Tangaratta Formation in the Werrie and Rocky Creek Blocks by NSWGS (Mark Dawson, pers. comm. 2005)|Mudstone, siltstone, sandstone, lithic sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Glenlawn Mudstone Member|82462|Glenlawn Mudstone|7422|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Goonoo Goonoo Mudstone|7573|||Tournaisian|||||Tournaisian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Mudstone, siltstone, sandstone, lithic sandstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Glenlee Rhyolite|7423|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Hyandra Creek Group|8619|||Lochkovian||||eruption|Lochkovian||||||200||No|43476|23170||||||Porphyritic rhyolite, green rhyolite.|acid volcanic rock|||N||17-JAN-23
Glenmore Formation|7435|Glenmore Beds|7434|||Yes|Formation, beds|Formal|Variation of published name|Defined|Wandsworth Volcanic Group|29113|||Late Permian||||deposition|Cisuralian||||||100|NSW|No|42748|42748||||||Texturally and mineralogically immature clastic sediments interbedded rarely with limestone and epiclastic sediments: boulder conglomerate, coarse arenite, minor fossil-bearing calcareous horizons, claystone and coal.|siliciclastic sedimentary rock|||N||17-JAN-23
Glennie Ridge Granite|34613|Obley Granite|27053|||Yes|Formation, beds|Formal|Variation of published name|Described|||Nallawa Suite|36469|Upper Devonian||||intrusion|Upper Devonian||||||||No|22831||||||Narromine 1:250 000 sheet area. Lithology description from GSNSW seamless geology 2023.|Fine- to medium-grained granite.|acid intrusive rock|||Y||28-SEP-23
Glenore Monzogranite|67908|Glenore Adamellite|7437|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Duval Suite|67902|Lower Triassic|253.7|1.4||intrusion|Late Permian||||||||No|68111||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Within the Uralla Supersuite. 250 - 247 Ma, Rb-Sr (biotite) (Shaw 1994), but intruded by Mount Duval Monzogranite (253.7+/-1.4 Ma U-Pb SHRIMP)|Porphyritic hornblende-biotite monzogranite.|acid intrusive rock|||Y|I-type|22-AUG-23
Glenrae Limestone Member|25925|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|33063|33063|||||25m thick at type section. Eastonian.|Massively calcreted limestone.|carbonate sedimentary rock|||N||17-JAN-23
Glenreach Monzogranite|69449|Glenreach Adamellite|7438|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Duval Suite|67902|Lower Triassic||||intrusion|Late Permian||||||||No|71628||Mark Dawson (NSWGS)|12-JUL-05|||Unpublished NSWGS GIS data, 2005.  Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Within the Uralla Supersuite. GSNSW seamless 2023 shows this unit as Early Triassic, but other units in the Suite have Permian geochron ages.|Approximately equigranular hornblende - biotite monzogranite with porphyritic margin|acid intrusive rock|||Y|I-type|22-AUG-23
Glenroc Coal Member|77383|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Glenrock Granodiorite|7440|Glenrock granodiorite|7442|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Arthursleigh Suite|31547|Pragian||||intrusion|Pragian||||||||No|34544||||||Marulan, NSW.  Steve Trigg, GSNSW advises that Uringalla Granite is now included in the Glenrock Granodiorite as it is  considered a northern extension (16-Feb-2012)|Pink to grey, equigranular, moderately coarse-grained biotite hornblende granodiorite with minor pyroxene. Abundant fine-grained igneous enclaves and country rock xenoliths locally|acid intrusive rock|||Y|I-type|17-JAN-23
Glenrossal Granite|26583|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Warri Suite|31656|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended. Wrongly shown as part of Watch Box Suite on Chappell et al (1991).|Hornblende-biotite monzogranite and granodiorite|acid intrusive rock|||Y||17-JAN-23
Glenrowan Intrusives|27783|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Bathonian|148|1.6||intrusion|Norian|203|2|isotopic, K/Ar|||||No|29698||||||Probably overlain by Pilliga Sandstone (contacts not exposed).|Sills and dykes of alkali dolerite and micro-syenodolerite.|basic intrusive rock|||Y||17-JAN-23
Glenrowe Granite|30522|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Boggy Plain Supersuite|2092|Emsian||||intrusion|Lochkovian||||||||No|23043||Scott M., Wyborn D.|25-SEP-96|||Wellington 1:100 000 sheet area. Yeoval Batholith. Description provided to Central Register 11May98. Previously considered part of Yeoval Suite.|Pink to red medium-grained biotite-hornblende and biotite-ferrohastingsite granite|acid intrusive rock|||Y||17-JAN-23
Glenroy Conglomerate Member|7444|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Ararat Formation|24663|||Visean||||deposition|Visean||||||||No|31228||||||Peterson-Gresford area.  Previously regarded as belonging to the Bingleburra Formation. Lithology description from GSNSW seamless geology 2023.|Medium- to fine-grained lithic sandstone, conglomerate. Volcanic clasts predominate (85%) with 8% sedimentary clasts and 6% plutonic clasts. Sandstone also contains ignimbrite clasts.|siliciclastic sedimentary rock|||N||28-SEP-23
Glenroy Formation|79944|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Middle Devonian|||inferred||Silurian|459|6|isotopic, U/Pb|||||No|71965||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Metasediments; possibly intersected by AOP Strathmore 1 - Interbedded pale green shale and fine-grained quartzose sandstone, poorly developed cleavage is parallel to bedding.|Metasediments; interbedded pale green shale and fine-grained quartzose sandstone, poorly developed cleavage is parallel to bedding.|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Glenview Coal Member|77421|||||Yes|Member, phase|Reserved|Variation of published name|Reserved|Dog Trap Creek Formation|23550|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Probably the same as informal Glenview Seam. Gloucester Basin.|Coal: Marine-influenced, pyrite and feldspar abundant. Occurs between biotubated sedimentary rocks|organic rich sedimentary rock|||N||17-JAN-23
Glenwood Formation|7447|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Late Silurian||||deposition|Late Silurian||||||||No|43500|||||||||||N||17-JAN-23
Glory Vale Conglomerate|7449|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|Manning Group|11186|||Permian||||deposition|Permian||||||||No|32094|||||||Polymictic conglomerate, lithic sandstone, siltstone, claystone, rare limestone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gloucester Coal Measures|7452|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Wordian||||deposition|Wordian||||||2040||No|43491|||||||Sandstone, mudstone, coal, claystone, conglomerate and volcanics|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Gloucester Tops Granodiorite|82353|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Omadale Brook Suite|82351|Roadian|||inferred, geochemical correlation||Kungurian|||inferred, geochemical correlation|||||No|71628||||||Different unit to Triassic Gloucester Granite in Qld. The only dated unit in the Barrington Tops Supersuite (an unnamed granodiorite) is Kungurian (Early Permian), but GSNSW shows all the units in this Supersuite as Triassic.|Fine- to medium-grained, amphibole granodiorite - tonalite - quartz monzodiorite. Characterised by conspicuous glomerophyric aggregates (< 1cm) of ferromagnesian minerals. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Glowang Granodiorite Phase|82354|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||Barrington River Granodiorite|82347|Kungurian|||inferred|magmatic crystallisation|Kungurian|277.2|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||This unit has Early Permian geochron, but is shown as Triassic in GSNSW seamless geology 2023.|Dark grey, waxy, biotite-clinopyroxene-orthopyroxene granodiorite.|acid intrusive rock|||Y||24-AUG-23
Gnalta Group|7460|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Middle Cambrian||||eruption|Early Cambrian|||||500|5105|NSW|Yes|43502|66623|Kruse P.D.||||Time equivalent to Teltawongee beds? Fault bounded against Ponto beds and Mount Arrowsmith Volcanics. Max. thickness from Geology of NSW Vol 2 (1998) RefID 22857 p404.|Basic, intermediate and acid volcanics, shale, carbonate, sandstone, siltstone;regionally metamorphosed to prehnite-pumpellyite facies; shallow water deposition.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Gnaltaknoko Member|76154|Gnaltaknoka Member|73402|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Mount Daubeny Formation|12623|||Lower Devonian|414.2|2.7|inferred, intrusive relationship|deposition|Late Silurian|425|7|inferred, lithostratigraphic correlation|||||No|66623|66623|||||Possibly equivalent to Koonburra Creek Quartzite Member. Northern Mount Daubeny Basin. Basal clasts derived from underlying Ponto and Teltawongee Groups and units to the north. Sphericity of clasts increases up-sequence. 590 m thick, including 160 m of intercalated volcanics.|Conglomerate; basal horizons containing boulders and angular rafts of sandstone, minor siltstone and quartzite; andesitic flows and related pyroclastics are intercalated; above these is quartzofeldspathic sandstone then polymict cobble conglomerate.|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Goalen Head Gabbro|27420|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||intrusion|Devonian||||||||No|60007|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Goat Mountain Alkali Granite|32525|Goat Mountain Granophyre|32402|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gulgong Suite|31452|Visean||||intrusion|Visean||||||||No|23043|23170|Cameron R.|22-JUN-98|||Dubbo 1:250 000 sheet area.|Leucocratic porphyritic primarily fine-grained alkali granite|acid intrusive rock|||Y|I-type|17-JAN-23
Gobondery Granite|7469|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Gobondery Suite|31578|Middle Devonian||||intrusion|Middle Devonian||||||||No|43510||||||Boggy Plain Supersuite|Pink, fine to medium grained fluorite bearing granite|acid intrusive rock|||Y||17-JAN-23
Gobondery Suite|31578|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Gocup Granite|7470|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian|409|3|isotopic, K/Ar||||NSW|No|39331|42313|||||Previously the only unit of the Gocup Suite.|Fine to coarse-grained biotite granite; minor coarse-grained muscovite-biotite granite; very minor aplite dykes, quartz veins; rare pegmatite dykes.|acid intrusive rock|||Y||17-JAN-23
Gogs Top Trondhjemite|7481|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Gummi Plain Suite|73892|Permian||||intrusion|Permian||||||||No|39874||||||Within the Clarence River Supersuite.|Fine- and medium-grained, equigranular, hornblende-biotite trondhjemite-tonalite; locally sheared.|igneous intrusive rock|||Y|I-type|24-JUL-23
Golden Gully beds|7502|Golden Gully Beds|7501|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|35118|||||||||||N||17-JAN-23
Gomiala Shale|27422|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Jurassic||||deposition|Jurassic||||||||No|32485||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Gongolgon Granite|78375|Gongolgin Granite|25019|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Tarcoon Suite|77133|Lower Devonian||||intrusion|Lower Devonian|410.9|2.5|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|70210|71345|||||Type location: Lat -30.3471 Long 146.8965; GR490049 6642742 (excellent exposure of weathered granite on the southern bank of the Bogan River adjacent to the weir) Also exposed sporadically in the Gongolgon village surrounds. Named for the village of Gongolgon.|Equigranular to porphyritic I-type granite; tourmaline-rich patches, graphic and miarolitic textures locally. Quartz-feldspar porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Gooandra Volcanics|26266|||||Yes|Formation, beds|Formal|Other new published name|Defined|Kiandra Group|27446|||Early Silurian||||eruption|Upper Ordovician||||||3000|NSW|No|36443|45147|D.Wyborn|26-NOV-76||||Metabasalt, basalt breccia, pillow lavas, amphibolite, chloritic schists, feldspathic sandstone; aphyric and feldspar phyric basalt, lava breccia, pillow lava, rhyolite, shale; fine feldspathic siltstone and shale|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Goobang Volcanics|33689|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Northparkes Volcanic Group|35020|||Silurian|||inferred, geochemical correlation|eruption|Upper Ordovician|||inferred, geological correlation||||NSW|No|24417||Raymond, O.L.|27-SEP-99|||Formation in Goonumbla Volcanic Group [but this name subsequently reverted to Goonumbla Volcanics, at Formation Rank].  Published in FORBES 1:250 000 Explan. Notes (03/32987). Previously assumed to be [Late] Ordovician, but geochemical correlation of some units in the area to Goonumbla Volcanics suggests these units may be Early Silurian (Llandovery) [in 2007].|Intermediate-mafic volcanics, intrusives and sediments. Fine grained andesitic sandstone.|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Goobarragandra Volcanics|25929|Goobarragandra Beds|7533|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Douro Group|5668|||Wenlock|428|1.9|inferred, intrusive relationship|eruption|Silurian|429|16|isotopic, Rb/Sr||||NSW|No|38548|22638|||||Redefined 1995. 429 +/- 16 Ma isochron. Volcanic equivalent of Young Granodiorite. Previously "Goobarragandra porphyry" and includes former "Fiery Range Porphyry" and "Wyora Porphyry".|Porphyritic dacitic to rhyolitic ignimbrite, ashfall tuff, minor dacite and andesite lava, tuff and agglomerate, volcaniclastic shale, siltstone; very minor sandstone, polymictic conglomerate, marble, limestone|acid volcanic rock|sedimentary rock||N|S-type|17-JAN-23
Goobothery Granite|35617|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Meakin S.|21-OCT-00|||Cargelligo 1:250 000 map sheet area.||acid intrusive rock|||Y||17-JAN-23
Good Dog Lamprophyre|7540|Good Dog Mountain lamprophyre|7542|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Cretaceous|101|4|||Lower Cretaceous|||||||NSW|No|43346|43346|||||Used in GSNSW seamless geology dataset 2021.|A leucocratic lamprophyric quartz-diorite; sporadically varying towards a porphyritic augite-mica lamprophyre to a mica lamprophyre; emplaced as a neck/plug and associated dykes.||||Y||20-JUL-23
Goodravale Limestone|7552|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32585||||||||carbonate sedimentary rock|||N||17-JAN-23
Goodwood Mudstone|68172|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Maryborough Formation|11409|||Cretaceous||||deposition|Cretaceous||||||||No|60281||||||Unlikely to be related to  Miocene Goodwood Fm, SA. Probably in Qld, not NSW.||siliciclastic sedimentary rock|||N||17-JAN-23
Googodery Trachyte|32590|Googoodery Rhyolite|7559|||Yes|Formation, beds|Formal|Variation of published name|Defined|Benolong Volcanic Suite|83967|||Lower Jurassic||||eruption|Middle Triassic||||||||No|23043|23170|Morgan L.|23-JUL-98|||Wellington &/or Euchareena 1:100 000 sheet area. Name misspelt when first published. Corrected on Dubbo 1:250 000 sheet.
Now considered a part of the Benolong Suite on the basis of work to be published by Brenainn Simpson.|Porphyritic, locally flow-banded trachyte and lesser trachylatite to latite lava and intrusions|intermediate volcanic rock|||N||31-AUG-23
Googong Monzogranite|76952|Googong Adamellite|7556|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Medium- to coarse-grained porphyritic monzogranite with dacitic xenoliths|acid intrusive rock|||Y|I-type|29-SEP-23
Goolang Siltstone Member|7560|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Bardool Conglomerate|1090|||Triassic||||deposition|Triassic|||||||NSW|No|43881|34340|||||Lith desc from GSNSW seamless geology 2023.|Grey to light grey, cherty siltstone with a blocky to irregular-blocky fracture; fossil plant fragments.|siliciclastic sedimentary rock|||N||28-AUG-23
Gooleys Basalt Member|82464|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Forest Reefs Volcanics|6819|||Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Age range: Gi1 (Gisbornian) (base) to Bo3 (Bolindian) (top).|Coarsely porphyritic basaltic intrusions, displaying a lower clinopyroxene and higher plagioclase phenocrysts abundances.|basic volcanic rock|||N||17-JAN-23
Gooligal Group|40440|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|24580|||||||||||N||17-JAN-23
Gooloo granite|23626|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Carboniferous||||intrusion|Carboniferous||||||||No|36600||R.Facer|25-JUL-78|||SI56-13. Granite in Gooloo Creek. After McIlveen (1975) A metallogenic study of the  Ulladulla 1:250 000 sheet SI56-13. GSNSW, 16pp. Unit not named in McIlveen.||acid intrusive rock|||Y||27-APR-23
Gooloogong Member|33409|||||Yes|Member, phase|Formal|Resvd name published|Defined|Hunter Formation|31710|||Upper Devonian||||deposition|Upper Devonian||||||80||No|23217|23392|Young G.C.|27-APR-99|||Forbes 1:250 000 sheet area. (Young, 1999b). Used in GSNSW seamless geology dataset 2021.|Buff sandstone and siltstone.||||N||20-JUL-23
Goombargana Granite|7562|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended. Lithology description from GSNSW seamless geology 2023.|Felsic, medium-grained muscovite-biotite-tourmaline granite, with or without cordierite (fibrolite and feathery muscovite present as alteration after cordierite). May contain biotite-rich enclaves.|acid intrusive rock|||Y||28-SEP-23
Goona Volcanics|23627|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Pragian||||eruption|Pragian||||||700|NSW|No|37772|41126|E.Scheibner|23-JUL-80|||Lith desc from GSNSW seamless geology 2023.|Mottled, welded, upward-graded submarine ash flows. Vitric tuff mainly as massive fine tops of ash flows. Intercalated sandstone, siltstone and shale.||||N||10-SEP-23
Goonbri Formation|24296|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Bellata Group|30037|||Artinskian||||deposition|Sakmarian|||||100|150|NSW|Yes|40767|43194|S.Thomson|10-DEC-85|NSW SNSC|24-OCT-86|Parent added from Geol Surv NSW Mem Geol 12.|Dark organic-rich siltstone, thin coal, graded siltstone-claystone, laminated sandstone and siltstone.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Goonda Point Shale|7566|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41463||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Goondi Formation|77251|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|68004||||||New name.|Colluvial/alluvial deposits from weathering of basement metasediments: subangular broken pieces of basement metasediments in a light grey sandstone matrix; clasts have tabular shape and bimodal sorting.|siliciclastic sedimentary rock|||N||17-JAN-23
Goondiwindi Conglomerate|7567|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Permian||||deposition|Permian||||||||No|43436|||||||||||N||17-JAN-23
Goonigal Group|24297|Fairhill Formation""|6495|||Yes|Group, Suite|Formal|Unknown or process pending|Redefined|||||Pridoli||||deposition|Ludlow||||||1425|NSW|Yes|40328|40328|G.Bradley|01-JUL-74|NSW SNSC|11-OCT-74|Redefined 1998, 1999. Includes some rocks previously included in Burgoon Subgroup, Cudal Group, Fairhill Formation and Manildra Group. Intruded by Gumble Granite.|Feldspar-lithic volcaniclastic sandstone, siltstone, shale, chert; pyroxene andesite lava; minor conglomerate, breccia, calcareous sandstone, rhyolite dykes|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Goonoo Goonoo Mudstone|7573|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Tournaisian||||deposition|Tournaisian||||||1200|NSW|No|43399|37987|||||See also Mandowa Mudstone|Massive, laminated mudstone with subordinate thin beds and lenses of arenite and a marker bed of limestone|fine grained siliciclastic rock||forearc|N||17-JAN-23
Goonoonglah Monzodiorite|40939|Goonoonglah Gabbro|7574|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Keverstone Supersuite|69867|Pridoli||||intrusion|Ludlow||||||||No|50233|68592|||||Of the Wyangala Batholith.  See also the misspelt Goonooglah Monzodiorite. Of Keverstone Supersuite in GSNSW seamless geology 2021.|Medium grained, commonly porphyritic; pyroxene-biotite-hornblende-quartz syenite, quartz monzonite and quartz monzodiorite, minor biotite-hornblende-quartz diorite and medium grained, biotite-hornblende-augite gabbro; medium K, low Th and U;|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Goonoonglah Monzodiorite, Yewrangara Granite, Sentry Box Granite|79783|Goonoonglah Monzodiorite, Yewangara Granite, Sentry Box Granite|42003|||Yes|Formation, beds|Informal|Variation of published name|Unpublished|||||Late Silurian|||||Late Silurian||||||||No|||||||Informal grouping of units used on the New South Wales 1:1 million geological map, National Maps Project. To be used in Pre-Cz geology, NSW & Vic. Of the Wyangala Batholith.|Porphyritic pyroxene-biotite-hornblende-quartz monzodiorite, quartz monzonite, quartz-alkali gabbro; leucocratic massive equigranular hornblende-biotite granite and soda granite|acid intrusive rock|||N||17-JAN-23
Goonumbla Volcanics|7578|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Northparkes Volcanic Group|35020|||Katian|450.9|4.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Darriwilian|466||||2500|4000|NSW|No|43499|46522|||||Was to be replaced by Goonumbla Group/ Goonumbla Volcanic Group in Forbes 1:250 000 sheet area, but this proposal abandoned. Age: 450.9+/-4.2 Ma (zircon U-Pb, Butera et al., 2001).|Basal, medium- to coarse-grained volcanic sandstone with local masses of allochthonous limestone; coarsens upwards into pebbly volcanic sandstone and thick conglomerate beds; basaltic andesite.|intermediate volcanic rock|||N||09-JUN-23
Goonumbla monzonites 82940|82940|Goonumbla Volcanic Complex Intrusives|72280|||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Ordovician|||inferred|magmatic crystallisation|Ordovician|||inferred|magmatic crystallisation||||No|||||||Invalid name. Used in GSNSW seamless geology dataset 2021 as ' Goonumbla monzonite 22', 'Goonumbla monzonite 26', ' Goonumbla monzonite 27', 'Goonumbla monzonite 28', 'Goonumbla monzonite 31', 'Goonumbla monzonite 48', Oulo, Ould, Oulh, Pulp, Oulq, Oulv. Goonumbla monzonite 26 magmatic crystallisation age given as 484.30+/-2.90 Ma; U-Pb to 438.90+/-4.70 Ma; U-Pb ANU. Used in GA Solid Geology layer.|Pyroxene-quartz monzonite, monzonite, minor sulphide mineralisation.|intermediate intrusive rock|||Y||17-JAN-23
Gooramma Suite|70027|||||Yes|Group, Suite|Formal|Other new published name|Defined|||Boggy Plains Supersuite|34323|Devonian|||||Devonian||||||||No|64238||Thomas, O. (GSNSW)|31-JAN-06|||Named for locality by YASS-BOOROWA 1:100 000 sheet boundaries - in the Mountain Creek Volcanics belt.|Mainly granite to granodiorite; several plutons also have quartz monzonite and quartz monzodiorite phases; dykes range from quartz monzonite to quartz monzodiorite to diorite; one small gabbro body; typically medium-grained and equigranular. I-type.|acid intrusive rock|||Y|I-type|10-SEP-23
Goorangoola Formation|7583|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||deposition|||||||||No|34466|||||||||||N||17-JAN-23
Goran Conglomerate Member|23631|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Black Jack Formation|1796|||||||deposition|||||||||No|38614||Beckett, J.|16-DEC-82||||Lithic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Gordonbrook Serpentinite|7608|Gordonbrook Serpentine|7607|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Cisuralian||||intrusion|Pennsylvanian||||||||No|34220|||||||Serpentinised peridotites (mainly dunite and harzburgite) and pyroxenites|ultramafic intrusive rock|||N||17-JAN-23
Gore Series|7610|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|48940|||||||||||N||17-JAN-23
Gosford Subgroup|7628|||||Yes|Subgroup|Formal|Variation of published name|Fully described|Narrabeen Group|13874|||Middle Triassic|||||Middle Triassic||||||||No|36121||||||Recent reference (2004) suggests Early to Middle Triassic age.|||||N||17-JAN-23
Gosford Subgroup and Bald Hill Claystone|82466|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Narrabeen Group|13874|||Middle Triassic|||||Middle Triassic||||||||No|||||||A grouping of convenience, for display purposes, where unit boundaries are unclear.Used in GSNSW seamless geology dataset 2021.|Interbedded quartzose and quartz-lithic sandstone and mudrock and chocolate shale|siliciclastic sedimentary rock|||N||27-AUG-23
Gosforth Shale|7631|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Lochinvar Formation|10550|||Permian||||deposition|Permian||||||||No|32945||||||Newcastle 1:250k.||siliciclastic sedimentary rock|||N||17-JAN-23
Gospel Oak Shale|24298|Lower Avoca Valley Shale|10698|||Yes|Formation, beds|Formal|Resvd name published|Defined|Cudal Group|4974|||Silurian||||deposition|Silurian||||||110|NSW|Yes|40328|40328|Pickett, J.|27-JAN-77|Hawke, J.|09-FEB-77|Published in NSW Bull.29. See also 'definition card' for invalid name Liscombe Pools Shale. Originally named Lower Avoca Valley Shale by Rudall (1964)|Red, green and brown shale, buff siltstone, shale with concretions.|fine grained siliciclastic rock|||N||17-JAN-23
Gostwyck Monzogranite|41061|Gostwyck Adamellite|7634|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Gostwyck Suite|73916|Permian||||intrusion|Permian||||||||No|24366||||||Formerly in the Hillgrove Suite; now in the Gostwyck Suite, of Hillgrove Supersuite.|Biotite monzogranite. Commonly foliated S-type biotite granitoid commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Gourock Granodiorite|24299|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Late Silurian|426|1.9|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|39028|40276|D.Wyborn|30-NOV-79|Russell, T.|14-SEP-82|To be used on the Araluen 1:100 000 sheet.|Foliated hornblende-biotite granodiorite, foliated biotite monzogranite, leucogranite|acid intrusive rock|||Y||10-SEP-23
Govetts Leap Sandstone Member|25932|Govetts Leap Sandstone|7641|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Cayley Formation|30746|||Triassic||||deposition|Triassic|||||||NSW|No|43360|34205|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Gowan Brae monzogranite|73104|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|62757||||||Granitoid of the Moonbi Supersuite. See also "Gowan Brae monzogranite".||acid intrusive rock|||Y||17-JAN-23
Gowan Green Group|28211|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned|||||Cambrian|||||Cambrian||||||||No|43476|||||||||||N||17-JAN-23
Gowrie Sandstone Member|7643|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Tangaratta Formation|17776|||Tournaisian||||deposition|Tournaisian||||||||No|43399|43399||||||Green labile sandstones minor conglomerate with discontinuous bedding. Shale breccias are abundant and crinoids stems are locally present|siliciclastic sedimentary rock|||N||17-JAN-23
Grafton Formation|7661|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lower Cretaceous||||deposition|Upper Jurassic||||||276||No|43384|||||||Interbedded sandstone (lithic to quartz arenites and wackes), clayey siltstone, claystone and minor coal; bedding thin to thick; commonly with ferruginous lateritic weathering profile.|siliciclastic sedimentary rock|organic rich sedimentary rock|oceanic backarc|N||17-JAN-23
Gragin Conglomerate|7665|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Ladinian||||deposition|Ladinian|||||60|100|NSW|Yes|34134|36570|Rade 1954, Bourke 1977.|01-JUL-77|Hawke, J.|05-SEP-77|In the Warialda Trough.|Orthoconglomerate, sporadic paraconglomerate, minor lithic arenite and rare mudstone at the top of the unit.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Graman Monzogranite|82467|||||Yes|Formation, beds|Formal|Other new published name|Described|||Bundarra Supersuite|67901|Cisuralian|||inferred||Cisuralian|288.6|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse-grained, porphyritic biotite (+/- muscovite, +/- cordierite) monzogranite; locally cut by quartz tourmaline veins.|acid intrusive rock|||Y|S-type|01-SEP-23
Grampians Group|7672|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Lower Devonian||||deposition|Upper Ordovician||||||6000||No|43461|50154|||||Numerical age range (425 - 415) from 2001 reference. Likely to be AGSO 1996 timescale (Llandovery to Ludlow). 2003 ref says: Includes Early Devonian possible tetrapod trackways. Pragian age based on isotopic evidence. GSV 2011 age range Late Ordovician - Early Devonian.|Marginal marine and fluvial sandstone, red mudstone, minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Grand High Tops Member|81961|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Shawns Creek Formation|81958|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Clast-supported polymictic volcaniclastic breccia; clasts of felsic coherent fragments and feldspar crystals, matrix formerly glass.|acid volcanic rock|||N||17-JAN-23
Granite Hills Complex|82469|Herries Granite|41586|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Lower Triassic|247||||Lopingian|256|||||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Composite unit comprising pale pink to greyish pink, to grey, fine- to coarse-grained, slightly to moderately porphyritic, hornblende-biotite monzogranite. Mafic enclaves common. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Grants Corner Granodiorite|29590|Grants Corner Granite|7701|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Grants Corner Suite|31525|Late Silurian||||intrusion|Late Silurian||||||||No|43642||||||To replace Grants Corner Granite in Bathurst 1:250 000 sheet area. Forms part of the Pine Mount Granodiorite of Stevens (1955) and the Pine Mount Intrusive Complex of Madsen (1970).  Intrudes Walli Volcanics.  See also the informal Grants Corner Granite.|Medium grained, slightly porphyritic, hornblende biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Grants Corner Suite|31525|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Grants Corner Supersuite|31524||||||||||||||No|42726|||||||||||Y||17-JAN-23
Grants Corner Supersuite|31524|||||Yes|Supergroup|Formal|Other new published name|Described||||||||||||||||||No|42726|||||||Unfractionated I-type equigranular to slightly porphyritic biotite-hornblende granodiorite; xenolith-rich porphyritic hornblende tonalite.|acid intrusive rock|||Y|I-type|17-JAN-23
Grants Head Formation|7702|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Camden Haven Group|28197|||Lower Triassic|||biozone|deposition|Lower Triassic|||biozone|||155|NSW|Yes|32719|66090|Pratt G.W., Herbert C.|11-DEC-72|Sherwin, L.|01-SEP-10|Redefined 7-JUL-2010, G.W. Pratt. See GSNSW Quarterly Notes 134 (June 2010).|Upwards-fining sequence of mudstone (~60%) interbedded sandstone (~40%); minor basal pebble and granule conglomerate interbedded with crossbedded quartz to lithic-quartz sandstone and siltstone; carbonaceous shale, laminated shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Granya Granite|7707|Granya granite|7709|||Yes|Formation, beds|Formal|Other new published name|Described|||Koetong Suite|9703|Wenlock|428.2|2.7||intrusion|Llandovery|435.8|4.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|29953||||||Of the Koetong Supersuite. This unit is called the Koetong Granite in New South Wales. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G103. See also RefID 67060 p503, 505.|Granite: coarse grained, leucocratic; contains quartz, K-feldspar, plagioclase, biotite, muscovite and accessory apatite, zircon, tourmaline and sillimanite; abundant enclaves; S-type.|acid intrusive rock|||Y|S-type|21-AUG-23
Grasmere Formation|76021|Grasmere beds|35626|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ponto Group|35621|||Cambrian||||deposition|Cambrian||||||||No|66918|66623||||||Dominant magnetic mudstone (phyllite) and non-magnetic metasandstone, with lesser mafic phyllite and metamorphosed mafic volcanic members, minor laminated felsic tuff layers and quartz-magnetite beds.|metasedimentary siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Grass Flat Monzogranite|77630|Grass Flat Granite|7710|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Tom Groggin Suite|18286|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)	|14-JUN-12|||See also Grass Flat Adamellite, Grass Flat Granite, Butchers Block Tonalite. Published in GSNSW seamless geology. GSV may still be using Grass Flat Granite.|Granite and leucogranite, mainly discordant, mostly massive.|acid intrusive rock|||Y||29-SEP-23
Grasstree Quartz Monzodiorite|82478|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Not related to Grasstrees Monzogranite in Qld.|Pale grey to pinkish grey, very fine-grained, highly porphyritic biotite-hornblende quartz monzodiorite. A-type (tentative).|intermediate intrusive rock|||Y|I-type|24-AUG-23
Grasstrees Coal Member|7711|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|37773||||||Greta Coal Measures, Sydney Basin.|Coal with variable quality and either two or three splits. Intersplit rocks include sandstone, shale and carbonaceous shale|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Grassy Gully Rhyolite Member|75931|Grassy Gully Rhyolite|7718|||Yes|Member, phase|Formal|Variation of published name|Fully described|Yalwal Volcanics|20784|||Upper Devonian||||magmatic crystallisation|Givetian|384.5|4.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|66300||Campbell, L., Trigg, S. (GSNSW)|11-MAY-11|||Reduced from Formation to Member rank, of the Yalwal Volcanics [GSNSW Mossvale 1:100k mapping team May-2011]. This age is indistinguishable from that of Tullyangela Granite, indicating at least local exposure of plutonic equivalents of the Late Devonian volcanic succession in southern MOSS VALE area.|Grey to pink, aphanitic generally, locally spherulitic, flow-banded rhyolite, rhyolitic breccia; sericitised, silicified locally. Intercalated sandstone, siltstone and basalt.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Gravel Creek Member|73425|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kara Formation|73550|||Neoproterozoic||||deposition|Neoproterozoic||||||||No|66917|66623|Gilmore, P. (GNSW)|25-JUN-07|||To be used on the Koonenberry 1:500 000 map sheet.|A thickly-bedded sequence of dark grey slate and calcareous metasandstone to impure limestone, overlain by lithic-feldspathic metasandstone; originally mudstone and sandstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Great Cobar Slate|7731|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nurri Group|14417|||Lower Devonian||||deposition|Late Silurian|||||||NSW|No|46032|43032|||||Quartz-rich zones host localised Cu-Pb-Zn deposits (Gladestone, Dapville and Great Cobar).|Carbonaceous mudstone with thin interbeds of fine siltstone, rare graded, medium to fine grained quartzose sandstone.|siliciclastic sedimentary rock|||N||03-AUG-23
Great Northern Coal|7738|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Moon Island Beach Subgroup|12215|||Lopingian|252.7|.05||deposition|Lopingian|252.85|.12|isotopic, U/Pb-Pb/Pb, TIMS|maximum depositional age||||No|34270||||||This Formation was downgraded to the informal Great Northern coal seam instead. Original name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021. age from : Metcalfe I., Crowley JL., Nicoll RS., Schmitz M. 2015. High-precision U-Pb CA-TIMS calibration of Middle Permian to Lower Triassic sequences, mass extinction and extreme climate-change in eastern Australian Gondwana, Gondwana Research 28 (2015) 61-81.|Hard, dull, (steaming) coal, high ash content, minor dirt bands.|organic rich sedimentary rock|||N||14-AUG-23
Green Hills Granodiorite|7753|New Maragle Granite|14059|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Tom Groggin Suite|18286|Pridoli||||intrusion|Llandovery|428.3|2.1||||||No|37529||||||See also Green Hills Granite. Previously shown as Tom Groggin Granite by Chappell et al. (1991).|Medium to coarse-grained biotite granodiorite, fine to medium-grained biotite-muscovite granodiorite/granite; biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths.|acid intrusive rock|||Y|S-type|21-AUG-23
Greenbah Formation|21904|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Ordovician||||deposition|Ordovician||||||||No|43127||Watkins J.J.|25-MAR-94|||To be used in Quarterly Notes article.|||||N||17-JAN-23
Greenbergers Granite|7758|||||Yes|Formation, beds|Informal|Resvd name published|Fully described|||||Upper Devonian|||inferred|intrusion|Upper Devonian|||inferred|||||No|42726||||||Misspelling of Reserved Name Greenburgers Granite. Updated from GSNSW seamless geology dataset 2021.|Medium- to coarse-grained, inequigranular, hornblende?biotite granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Greengrove Formation|7762|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cudal Group|4974|||Llandovery||||deposition|Llandovery||||||430||No|33116||||||Defined by Savage 1969 (a).|Grey to brown shale, minor lithic arenite; massive fossiliferous limestone horizons.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Greengrove mafic intrusion|79339|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|70297||||||Invalid name.Should NOT be formalised. Note: Silurian Greengrove Formation (arenite and limestone) is also a NSW unit used in the same Bathurst  map sheet area & on the same map sheet. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|||||Y||17-JAN-23
Greenland Ignimbrite Member|7765|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|31918||||||||acid volcanic rock|||N||17-JAN-23
Greenridge Formation|7768|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40726|||||||||||N||17-JAN-23
Greenslopes Porphyry|29670|Jerula Granite|8944|||Yes|Formation, beds|Formal|Resvd name published|Described|||Wologorong Supersuite|69873|Devonian||||eruption|Silurian||||||||No|43639||Wallace D. for Lachlan NGMA project.|01-SEP-95|||To replace Jerula Granite. Bathurst 1:250 000 sheet area. Intrudes the Adaminaby Group and Rockley Volcanics.  Is a pink massive porphyry.|A pink massive porphyry.|acid intrusive rock|||Y||17-JAN-23
Greenwood Granite|7780|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|39800|||||||Biotite granite.|acid intrusive rock|||Y||17-JAN-23
Gregra Group|7789|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Emsian||||deposition|Lochkovian||||||2000||No|34478|23170|||||Defining ref (Dubbo Explan Notes, 1999) refers to many overlying and underlying units. Bulls Camp Volcanics is from a previous ref. Includes the Garra and Berkley Formations, Maradana Shale, Cuga Burga and Bulls Camp Volcanics.|Fossiliferous limestone, calcareous sandstone, siltstone and breccia; latitic to rhyolitic and andesitic volcanics and volcaniclastics; laminated shale, siltstone, fine-grained feldspathic sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Greigs Creek Coal|7790|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Moon Island Beach Subgroup|12215|||Lopingian|||inferred, lithostratigraphic correlation|deposition|Lopingian|||inferred, lithostratigraphic correlation|||||No|29942||||||Formerly of Glen Gallic Subgroup. Updated from GSNSW seamless geology dataset 2021.|Mainly dull, banded coal with minor shale and claystone bands.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Grenfell Granite|7795|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Boggy Plain Supersuite|2092|Middle Devonian||||intrusion|Middle Devonian||||||||No|43499|24417|||||Forbes 1:250 000 sheet area. Previously the only unit of the Grenfell Suite.|Coarse grained, pink, fractionated biotite granite|acid intrusive rock|||Y||17-JAN-23
Gresford Conglomerate Member|7796|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Ararat Formation|24663|||Visean||||deposition|Visean||||||||No|31228||||||Previously regarded as belonging to the Bingleburra Formation. Lithology description from GSNSW seamless geology 2023.|Thick-bedded, coarse-grained conglomeratic lithic sandstone, conglomerate. Volcanic clasts predominate (85%) with 8% sedimentary clasts and 6% plutonic clasts. Sandstone also contains ignimbrite clasts.|siliciclastic sedimentary rock|||N||28-SEP-23
Gresham Granite|21911|Greshan Granite|7797|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bathurst Supersuite|31449|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|43127||Henderson T. Wyborn D.|19-APR-93|||Blayney 1:100 000 sheet, BD as Greshan Granite in Chappell et al (1991).|Graphic biotite granite, porphyritic granite, dioritic enclaves, aplite|acid intrusive rock|||Y||17-JAN-23
Greta Coal Measures|7798|Lower Coal Measures|10719|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Roadian|271||isotopic, U/Pb-Pb/Pb, TIMS|deposition|Roadian|||||180|480|NSW|No|44063|22601|||||See also Lexicon. SI56-1/Muswellbrook.   Age: 278-269Ma, 278-275Ma (Roberts et al 1995) and 274-273Ma (Nicholl et al 1998). Geological Province: Cranky Corner Basin.|Coal seams, siltstone, sandstone, claystone, chert.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Grey Mare Granodiorite|7815|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Tom Groggin Suite|18286|Late Silurian||||intrusion|Late Silurian||||||||No|34519||||||See also Grey Mare Granite. Probably not related to Greymare Granodiorite.|Biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y||17-JAN-23
Grey Range Group|73424|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Ediacaran|||inferred, geological correlation|eruption|Ediacaran|586|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|66917|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used in the Koonenberry 1:500 000 map sheet area. SHRIMP date from Mount Arrowsmith Volcanics.|Metasedimentary rocks, dominantly slate, siltstone, sandstone with undifferentiated mafic igneous rocks and related intrusions.|metasedimentary siliciclastic rock|basic intrusive rock||N||17-JAN-23
Greymare Granodiorite|7819|Greymare Granite|7818|||Yes|Formation, beds|Formal|Variation of published name|Described|||Greymare Suite|73901|Cisuralian|279.6|2.6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Cisuralian|279.6|2.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|32876||||||Note: Greymare Granodiorite of the Greymare Suite, now in Clarence River Supersuite (In Geology of Queensland 2013, p457 and p464).|Granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Greymare Suite|73901|||||Yes|Group, Suite|Informal|Resvd name published|Briefly described|||Greymare Supersuite|73900|Lower Triassic|||||Permian||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007. Note: Greymare Granodiorite of the Greymare Suite, now in Clarence River Supersuite (In Geology of Queensland 2013, p457 and p464).|||||Y||17-JAN-23
Greymare Supersuite|73900|||||Yes|Supergroup|Informal|Resvd name published|Mentioned|||||Lower Triassic|||||Permian||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007. Note: Greymare Granodiorite of the Greymare Suite, now in Clarence River Supersuite (In Geology of Queensland 2013, p457 and p464).|||||Y||17-JAN-23
Grieg Creek Conglomerate|7822|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40276|||||||||||N||17-JAN-23
Griffith Analcimite|83464|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Langhian|14.9|.4|isotopic, Ar/Ar|eruption|Langhian|||inferred|eruption||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Olivine-bearing extrusive igneous rock (from a lava) with an analcime groundmass.|igneous volcanic rock|foid-bearing volcanic rock||N||27-APR-23
Griman Creek Formation|7826|Griman Creek Group|7829|||Yes|Formation, beds|Formal|Variation of published name|Defined|Rolling Downs Group|16267|||Cenomanian||||deposition|Aptian||||||345|QLD|No|43459|45110|||||Numerical ages don't match age names. Basis of numerical age range (from 2009 ref) unknown. Another 2009 ref gives: Age: ?-107Ma, Fission Track age: 103+/-9 Ma. Defined by Reiser (1970): his type section was the interval between 25' and 1135' (7.6m and 346m) in GSQ drillhole Surat 3. Angledool Explan Notes (2011) nominate a Reference section in the Lightning Ridge area, NSW.|Grey, weathering to white, fine- to medium-grained sandstone, laminated to massive siltstone, and mudstone; kaolinised. Intraformational conglomerate and coal present in upper part.|siliciclastic sedimentary rock|||N||10-JUL-23
Grogan Volcanics|21915|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||eruption|Upper Ordovician||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Age may be close to Ordovician/Silurian boundary. Does not outcrop||intermediate volcanic rock|||N||17-JAN-23
Grong Grong Granite|25032|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Koetong Suite|9703|Late Silurian||||intrusion|Early Silurian|430.6|1.8||||||No|71364||||||Previously of Grong Grong Suite. Now(2021) included in Koetong Suite.|Medium-grained, equigranular, muscovite-biotite granite with scattered feldspar phenocrysts to 2 cm long. Contains rare to locally abundant biotite-rich enclaves.|acid intrusive rock|||Y||21-AUG-23
Grose Subgroup|26595|Grose Sub-Group|7836|||Yes|Subgroup|Formal|Unknown or process pending|Described|Narrabeen Group|13874|||Lower Triassic|||||Late Permian||||||||No|31061|||||||||||N||17-JAN-23
Grosses Plain Tonalite|28190|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|35263|41905|||||Used in GSNSW seamless geology dataset 2021.|Medium-grained, mafic, hornblende-biotite tonalite; sporadic aggregates of biotite, hornblende, apatite and magnetite, sulphides common.||||Y||24-JUL-23
Grove Porphyrite|7840|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|31140||||||See also Grove tonalite porphyrite.|||||N||17-JAN-23
Guapa Tank Rhyodacite Member|25936|||||Yes|Member, phase|Formal|Resvd name published|Defined|Burthong Formation|3177|||Devonian||||eruption|Devonian||||||900|NSW|No|41394|41528||||||Porphyritic, rhyodacitic coherent volcanics; vitric-lithic tuff; minor crystal tuff. Locally pyritic and silicified.||||N||20-JUL-23
Gubberamunda Sandstone|7848|||||Yes|Formation, beds|Formal|Other new published name|Defined|Injune Creek Group|8710|||Berriasian|||biozone|deposition|Tithonian|||biozone|||298|QLD|No|44375|45110|||||Age from Ref 65119 (2009): Age: Tithonian- Berriasian from palynofloras - Geology of Queensland 2013p537.  Fission Track age (of exposure): 131+/-11 Ma.]. Aquifer: generally artesian. part of or overlying Injune Creek Group?|Medium- to coarse-grained, largely quartzose, poorly sorted sandstone with minor conglomerates and siltstones.|siliciclastic sedimentary rock||intracratonic|N||17-JAN-23
Gulf Siltstone-Argillite Formation|27790|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|38915||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Gulf Station Leucosyenogranite|82480|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Permian|||||Permian||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine- to medium-grained biotite leucosyenogranite. Has undergone deformation, annealing, pervasive alteration, and is strongly jointed.|acid intrusive rock|||Y||03-SEP-23
Gulgong Granite|7860|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Gulgong Suite|31452|Visean||||intrusion|Tournaisian||||||||No|43355|23170||||||Leucocratic medium- to coarse-grained porphyritic megacrystic granite, minor aplite phases, minor quartz monzonite|acid intrusive rock|||Y|I-type|17-JAN-23
Gulgong Suite|31452|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bathurst Supersuite|31449|Pennsylvanian|||||Mississippian||||||||No|42726||||||Briefly described.  Replaced by the Gulgong Plutonic Suite on Dubbo 1:250 000 sheet (1999) with slightly different constituents, but original name now reinstated.||acid intrusive rock|||Y||17-JAN-23
Gullengumbel Formation|7863|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||940||No|43476|23170|||||Defining ref (Dubbo Explan Notes, 1999) gives age of Late Silurian only. The Ludlow ages are from a previous reference.|Sandstone, siltstone, shale, phyllite, hornfels.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Gum Creek Member|76156|Gum Creek beds|38165|||Yes|Member, phase|Formal|Variation of published name|Defined|Ravendale Formation|15860|||Givetian||||deposition|Givetian||||||||No|66623|66623|||||As distinct from Gum Creek Basalt. Named as Gum Creek beds by Neef and Larsen (2003); now defined (2010). Menamurtee Hills area. One of three contemporaneous basal units of Ravendale Formation; correlated with Turkaro Range Conglomerate Member and Rocky Tank Conglomerate Member. Interpreted to have formed from Tabberabberan uplift and erosion of Menamurtee Sandstone. See also Gum Creek Beds.|Medium-grained quartzose sandstone similar to the Menamurtee Sandstone, and distinct from overlying white to buff planar-laminated and cross-bedded fluvial quartzose sandstones of undifferentiated Ravendale Formation.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gum Vale beds|68693|Gum Vale Beds|7870|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Cretaceous||||deposition|Cretaceous||||||||No|44093||||||Previously known as Gum Vale Beds. See also Gum Vale Formation. Known as Cadna-owie Formation outside the Tibooburra area. Local unit in part equivalent to Cadna-owie Formation and part Algebuckina Sandstone.|Sandstone, calcareous sandstone, siltstone, shale, ironstone, quartz pebble conglomerate; fossil wood|siliciclastic sedimentary rock|||N||17-JAN-23
Gum Valley Volcanics|39365|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|24123|||||||||||N||17-JAN-23
Gumbalara Formation|82482|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Llandovery|||inferred||Cambrian|||inferred|||||No||||||||Metasedimentary steeply dipping sandstone, siltstone and mudstone (low metamorphic grade). Single cleavage oblique to bedding. Broad areas of low magnetic intensity interpreted as metasedimentary rocks. No age control.|siliciclastic sedimentary rock|metasedimentary rock||N||17-JAN-23
Gumbardo Formation|28254|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Emsian||||deposition|Pragian||||magmatic crystallisation|26|756|QLD|No|44888|64783|||||First named by Phillips Petroleum Company (1963) in PPC Gumbardo-1, and defined by them in 1964;  the reference section being 3167.8 to 3912.1 m. Redefined 1970. Redefined again 2007 as the section between 3148.5 and 3904 m, to exclude Ordovician volcanic rocks. See also informal variation Gumbardo Volcanics. Reappears with several mentions in 2013 (RefID 68731). [Unit unlikely to occur in NSW].|Comprises volcanic and volcaniclastic rocks. Volcaniclastics are feldspathic and lithofeldspathic labile sandstones. Volcanic rocks are mainly acidic, although there are some mafic volcanic rocks.|igneous volcanic rock||continental rift|N||17-JAN-23
Gumbercoo|79946|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||For use in AJES paper as Gumbercoo Zone, sthn Thomson Orogen, but may be formalised as a result of planned drilling. Metasedimentary rocks ?interpreted from geophysics.|||||N||17-JAN-23
Gumbercoo Formation|82483|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lochkovian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Steeply dipping, cleaved, metasedimentary siliclastic siltstone and sandstone (possibly turbiditic origin).|siliciclastic sedimentary rock|||N||17-JAN-23
Gumble Granite|7872|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Boggy Plain Supersuite|2092|Middle Devonian||||intrusion|Lower Devonian||||||||No|43515||||||Intrudes the Kabadah Formation, Cudal, Goonigal and Gregra Groups.  I-Type granite.|Pink, weakly quartz-K feldspar-phyric, felsic granite with minor biotite; some aplite and granophyric granite porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Gummi Plain Granodiorite|82355|||||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Barrington Tops Supersuite|82349|Wordian|||inferred|magmatic crystallisation|Roadian|267.8|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||in 2017, was assigned to Gummi Plain Suite, but this Suite name appears to have been dropped in 2020/21, in favour of the broader Barrington Tops Supersuite.|Black and white speckled to waxy, medium-grained hornblende-biotite-(pyroxene) granodiorite to tonalite; strongly altered, finer-grained, porphyritic marginal variant.|acid intrusive rock|||Y||16-AUG-23
Gums Road Limestone Member|26597|||||Yes|Member, phase|Formal|Variation of published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|deposition|Ludlow|||inferred||3|23.7|NSW|No|31852|68592|||||Previously included in Silverdale Formation.|Fossiliferous massive-bedded limestone (biomicrite, intrasparrudite, pelsparrudite, biomicrudite), quartzose biomicrudite, clayey biomcrite, shale partings and conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Gumtree Monzogranite Phase|82383|Gumtree Monzogranite|82382|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Sheep Station Creek Complex|28997|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Cream-grey, equigranular medium-grained, biotite monzogranite.|acid intrusive rock|||Y|I-type|01-SEP-23
Gundagai Serpentinite|27162|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Jindalee Group|27440|||Lower Ordovician|||||Cambrian||||||1000|NSW|Yes|35206|22638|Winward K., Clift D.S.L.  (see 73/908 folio 11)||||Used in GSNSW seamless geology dataset 2021.|Serpentinite, talc-carbonate rocks, pyroxenite, pegmatite gabbro.||||N||21-JUL-23
Gundahl Complex|7886|Gundahl complex|7888|||Yes|Formation, beds|Formal|Resvd name published|Defined|Coffs Harbour Association|38341|||Pennsylvanian|||inferred, geological correlation|deposition|Mississippian|||inferred, geological correlation||||NSW|Yes|39648||C.L.Fergusson, J.McPhie|15-SEP-81|Russell, T.|10-DEC-88|Previously reserved as Gundahl Beds.|Tectonic melange: blocks of bedded metasediment, chert, greenstone (altered mafic volcanics), and massive lithic wacke in a sheared argillaceous matrix. Subordinate gossan, ferruginous chert, breccia, jasper, limestone and calcareous shales|igneous rock|sedimentary rock|accretionary wedge|N|I-type|17-JAN-23
Gundangaroo Formation|7892|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nile Subgroup|27092|||Late Permian||||deposition|Late Permian||||||23.5|NSW|No|43360|40806|||||Formerly considered part of Cullen Bullen Subgroup, now top of Nile Subgroup, Illawarra Coal Measures (2012).|Thin coal seams, carbonaceous shale, fossil wood horizons, grey shale.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Gundara Quartzite Member|73406|||||Yes|Member, phase|Formal|Resvd name published|Defined|Rowena Formation|16395|||Middle Ordovician||||deposition|Lower Ordovician||||||||No|64679|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet.|Buff to white planar- and cross-bedded quartzite. Includes angular quartz-vein conglomerate, distinctive quartz pebble bands and trace fossils.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gundaroo Sandstone|23639|||||Yes|Formation, beds|Formal|Other new published name|Defined|Winduck Group|25683|||Emsian||||deposition|Pragian|||||90|1250|NSW|No|35925|43032|R.A.Glen|12-APR-79|||Winduck Shelf. Time-transgressive basal boundary.|Light red-brown to very light beige, fine- to medium-grained, litharenite, sublitharenite and (bimodal) quartz arenite. Sporadic beds contain chocolate-coloured shale rip-up clasts. Secondary silicification and quartz overgrowths|medium-coarse grained siliciclastic rock|||N||04-AUG-23
Gundary Volcanics|69883|Gundary Formation|31755|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Mount Fairy Group|26052|||Lochkovian|||inferred, overlying unit|eruption|Lochkovian|414|4|isotopic, U/Pb-Pb/Pb ion probe|||1350|NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006) and will redefine Gundary Formation of previous publications, maps etc. Included are four members: Tiranna Andesite, Back Station Ignimbrite, Komungla Rhyolite and Corrinyah (replaced by Bradfordville) Volcaniclastic Members. [12/05 PP].|Crystal rich, pyroxene and hornblende dacitic welded ignimbrite, crystal-lithic rich, rhyolitic to dacitic volcanic sandstone and conglomerate. Porphyritic rhyolite and andesite with basalt. Quartzose-lithic quartz sandtsone, siltstone and mudstone.|acid volcanic rock|siliciclastic sedimentary rock|oceanic backarc|N||17-JAN-23
Gundaur Cr-rich harzburgite|82533|Gundaur Igneous Complex|77350|||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Forms plugs and sills with an E-W axis of elongation. This unit apparently further downgraded in GSNSW seamless geology dataset 2023 to 'Westlyn Igneous Complex - Gundaur Cr-rich harzburgite'.|Cr-rich harzburgite; forms plugs and sills with an E-W axis of elongation.|ultramafic intrusive rock|||Y||13-JUN-23
Gundawarra Coal Member|21920|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||G.W.Richards|03-AUG-78|||Originally reserved for S.Butel. This name revived by GSNSW 14-JUN-2012.  Used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, seam thickness ranges, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Gundibindyal Granite|29581|Gundibindya Granite|7895|||Yes|Formation, beds|Formal|Resvd name published|Described|||Gundibindyal Suite|32685|Lower Devonian|417.9|2||intrusion|Late Silurian||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. Misspelt as Gundibindya Granite in Chappell et al (1991)?|Porphyritic biotite granite|acid intrusive rock|||Y||21-AUG-23
Gundibindyal Suite|32685|Gundibindya Suite|31579|||Yes|Group, Suite|Formal|Variation of published name|Mentioned|||||Devonian|||||Devonian||||||||No|44192||||||Cootamundra 1:250 000 sheet area. Misspelt as Gundibindya Suite in Chappell et al (1991)?||acid intrusive rock|||Y||17-JAN-23
Gundillion Conglomerate|24302|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Upper Devonian||||deposition|Upper Devonian||||||150|NSW|Yes|39028|40276|M.Owen|03-APR-81|Russell, T.|14-SEP-82|For use in the Araluen 1:100 000 sheet.|Red to brown, polymictic, matrix to clast-supported pebble to cobble conglomerate fining upwards into coarse to very coarse-grained lithic-rich sandstones. Clasts include chert, mudstone, siltstone, fine-grained quartz sandstone, rhyolitic volcanics.|siliciclastic sedimentary rock|||N||17-JAN-23
Gundle Monzogranite|82484|Gundle Granite|7897|||Yes|Formation, beds|Formal|Variation of published name|Described|||Glen Esk Suite|74017|Upper Triassic|213|12|isotopic, U/Pb-Pb/Pb ICP-MS||Upper Triassic|217.1|2.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Off-white, green-grey to pale pink, coarse-grained biotite-hornblende monzogranite and biotite leucomonzogranite, grading into porphyritic, microgranitic and sugary-texture aplitic variants towards the margin.|acid intrusive rock|||Y|I-type|16-AUG-23
Gundle Suite|73985|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||Round Mountain Supersuite|73982||||||||||||||No|||Blevin, Bultitude & Champion|22-NOV-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Gundurimba Clay|7899|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|40726||||||Age: 120000yrs BP.|||||N||17-JAN-23
Gungarlin Monzogranite|77006|Gungarlin Adamellite|25938|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Coarse- to medium-grained biotite monzogranite; quartz aggregates to 10 mm, irregular K-feldspar crystals to 15 mm, tabular plagioclase to 5 mm, large deformed biotite clumps with secondary chlorite and epidote|acid intrusive rock|||Y|S-type|30-SEP-23
Gungoandra Siltstone|7908|Gungoandra Siltstone Member|7907|||Yes|Formation, beds|Formal|Variation of published name|Defined|Margules Group|69897|||Llandovery|||inferred|deposition|Katian|||inferred|||100|NSW|No|42294|22815|||||Cooma area. Proposed to be reassigned from the Bendoc Group to Margules Group in 2018 and the GSNSW seamless geology demonstrates this change has been made.|Siliceous mudstone and fine grained quartzites|fine grained siliciclastic rock|||N||17-JAN-23
Gunnan Ignimbrite Member|82485|Gunnan Ignimbrite|77360|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Willuri Formation|39257|||Bashkirian|||inferred||Serpukhovian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Brown-grey, coarse, crystal-rich, slightly welded to unwelded, rhyolitic ignimbrite.|acid volcanic rock|||N||20-JUL-23
Gunnedah Basin - sedimentary rocks 82932|82932|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Gunnedah Basin units ', Pub. Used in GA Solid Geology layer.|Quartz-lithic and tuffaceous sandstone, siltstone, granule to pebble conglom, some pumice-rich; carbonaceous siltstone; rare coal. Beds of Glossopteris-bearing siltstone and fine-grained sandstone.|siliciclastic sedimentary rock|||N||02-SEP-23
Gunnedah Formation|77553|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Pliocene||||deposition|Pliocene||||||||No|66891||||||Age, lithology and environment of deposition details from Ringrose-Voase et al (2003) after Gates (1980) unpub. Fresh water aquifer.|Interbeded clays with sand and gravel layers.|regolith|||N||17-JAN-23
Gunnee Formation|7913|Gunnee Beds|7912|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Anisian||||deposition|Anisian|||||||NSW|Yes|36570|36570|Rade 1954, Bourke 1977.|01-JUL-77|Hawke, J.|05-SEP-77|In the Warialda Trough.|Interbedded conglomerate and very coarse lithic arenite; very coarse feldspatholithic gravel at the base, grades upwards into labile sandstone, siltstone and carbonaceous mudstone and minor coal.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gunnible Formation|7914|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||||||deposition|||||||||No|43409|43409||||||||||N||17-JAN-23
Gunning Granite|7915|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Gunning Suite|31580|Ludlow||||intrusion|Wenlock|428.6|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|44861||||||Part of the Wyangala Batholith.|Porphyritic hornblende granodiorite with biotite, magnetite, allanite, apatite, zircon and relict calcic cores in plagioclase; minor aplite and miarolitic leucogranite soda granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Gunning Suite|31580|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Silurian|||inferred||Silurian|||inferred|||||No|42726||||||Age constrained by dating of Cumberoona Tonalite (429.2 +/-3 Ma) and Gunning Granite (428.6 +/- 2.4 Ma). Part of previous Wheeo Suite incorporated.|Granites, granodiorite and tonalite.|acid intrusive rock|||Y|I-type|17-JAN-23
Gunningbland Formation|35027|Gunningbland Shale Member|7916|||Yes|Formation, beds|Formal|Variation of published name|Defined|Northparkes Volcanic Group|35020|||Katian||||deposition|Darriwilian||||||400|NSW|No|24417|24417|Raymond, O.L.|17-FEB-00|||Of Percival (1978). Upgraded to formation status from Gunningbland Shale Member.|A sequence of volcanic siltstone, mudstone, sandstone and patchy limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Gunningrah Tonalite|21923|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Kelvin Suite|32180|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Lewis P.|21-DEC-90|||BD as Gunnungrah Granite (in Bombala Suite) Chappell et al (1991), but formal name not intended.|Hornblende-biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Gunny Bag Granite|82487|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Triassic|||||Triassic||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Porphyry and leucomonzogranite.|acid intrusive rock|||Y|A-type|16-AUG-23
Gurnang Porphyry|7925|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||eruption|||||||||No|32999|||||||||||U||17-JAN-23
Guroba Formation|26600|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Crudine Group|4970|||Lochkovian||||deposition|Lochkovian||||||700||No|43476|23170||||||Quartzofeldspathic arenite, siltstone, tuff and breccia.|siliciclastic sedimentary rock|||N||11-SEP-23
Gurragong Group|80567|Gurragong Volcanics|40131|||Yes|Group, Suite|Reserved|Reserved|Reserved|Cobar Supergroup|27673|||Lochkovian|||||Pridoli||||||||No|||Bull, K. (GSNSW)|30-JUL-18|||Intended to replace Gurragong Volcanics. Includes Mout Ariah Rhyolite, Indarra Tuff, Corella Ignimbrite, Walleroobie Ignimbrite and two informal units that were mapped/described on Cargelligo - 1. quartz feldspar porphyry - probably correlative of Mount Ariah Rhyolite - tbc., 2.garnet granite.|||||N||17-JAN-23
Gurragong Volcanics|40131|Curragong Volcanic Complex|30824|||Yes|Formation, beds|Formal|Resvd name published|Defined|Rast Group|23935|||Lochkovian|416.5|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|418.6|2.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|60303|61964|Meakin, S.|20-JAN-04|||To replace original reserved name, Gurragong Volcanic Complex. Interpreted as southerly extension of Ural Volcanics. Narrow belt of garnet-bearing silicic volcanic and related intrusive igneous rocks. Subdivided into 5 informal units; quartz feldspar porphyry; garnet granite; biotite ignimbrite; lithic ignimbrite; rhyolite lava or shallow intrusion. Now (JUL-2018) proposed to be upgraded and replaced by Gurragong Group.|Silicic volcanic and intrusive rocks; biotite ignimbrite, lithic quartz-feldspar ignimbrite, rhyolite lava, quartz-feldspar porphyry, megacrystic garnet granite; volcaniclastics.|acid volcanic rock|acid intrusive rock||N|A-type|17-JAN-23
Gurrangorambla Granophyre|7927|Gurrangorambla Range Granophyre|7928|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Coolamine Suite|31468|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|29456|45147||||||Granophyre|acid intrusive rock|||Y||17-JAN-23
Gurrundah Granite|35786|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Parkesbourne Suite|69872|Pragian||||intrusion|Lochkovian||||||||No|50232||Scott M.|23-MAR-01|||GOULBURN 1:250 000 sheet area.  Part of the Wologorong Batholith.|Medium-grained, porphyritic biotite granite and granodiorite, porphyritic alkali feldspar granite and quartz monzonite; low K, Th and U response; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Guy Fawkes Granodiorite|82489|||||Yes|Formation, beds|Formal|Other new published name|Described|||Carrai Supersuite|82123|Upper Triassic|||inferred||Middle Triassic|237.4|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium to light greenish-grey, equigranular, medium-grained hornblende-biotite granodiorite, and (K-feldspar) porphyritic hornblende-biotite monzogranite. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Guygallon Volcanic Member|40991|Guygallon Tongue|21930|||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||230||No|50268|||||||White to grey volcanogenic sandstone, volcanic breccia and siltstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Gwando Siltstone|26601|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Yarra Yarra Creek Group|29299|||Pragian||||deposition|Pragian||||||700||No|9548||||||Lithology description from GSNSW seamless geology 2023.|Thinly bedded siltstone, very rare in outcrop.|siliciclastic sedimentary rock|||N||28-SEP-23
Gwydir River Monzogranite|41062|Gwydir River Adamellite|28270|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Duval Suite|67902|Lower Triassic|244||isotopic, Rb/Sr|intrusion|Changhsingian|252.3|1.5|isotopic, U/Pb-Pb/Pb ion probe|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.|Coarse, porphyritic monzogranite to granodiorite|acid intrusive rock|||Y|I-type|22-AUG-23
Gyarran Volcanics|26602|||||Yes|Formation, beds|Formal|Variation of published name|Described|Dalwood Group|28493|||Sakmarian||||eruption|Asselian||||||218||No|43477||||||Proposed that Gyarran Volcanics and Skeletar Formation combine to form the Dalwood Group (1994).|Rhyolite, acid to basic volcanics and pyroclastics.|acid volcanic rock|||N||17-JAN-23
Hadrells Hill Member|80314|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Budginigi Ignimbrite|80312|||Lower Devonian|||||Lower Devonian||||||||No|||Bull, K., Gilmore, P. (GSNSW)|17-NOV-17|||East Riverina Project. Subaerial. Pyroclastic deposits including crystal-rich ignimbrite and minor hyaloclastite. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Published in GSNSW seamless geology. Lith desc from 2023 version. Directly underlies unconformity at Hadrells Hill.|Very altered and weathered crystal lithic pumice breccia up to 5 m thick. Contains cuspate clasts indicative of quench fragmentation, from deposition of a felsic coherent unit in a subaqueous environment.||||N||27-SEP-23
Haedon Formation|27044|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Darriwilian||||deposition|Darriwilian||||||150||No|41347||P.Cawood|03-OCT-78||||Reworked limestone; massive bedded and oolitic limestone; conglomerate, sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock|island arc|N||17-JAN-23
Haematitic Limestone Member|82490|Haematitic Limestone Member""|37394|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Bagdad Formation|875|||Rhuddanian|||inferred||Rhuddanian|||inferred|||||No|||||||Invalid name (not after a place name). Used in GSNSW seamless geology dataset 2021.|Haematitic ?thin-bedded limestone.|carbonate sedimentary rock|||N||17-JAN-23
Half Moon Peak Monzogranite|76993|Half Moon Peak Adamellite|23641|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||McKeahnie Suite|31610|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. S-type or I-type? Published in GSNSW seamless geology. Lith desc as I-type from 2023 version.|Coarse- to medium-grained biotite monzogranite, alkali-feldspar megacrysts to 20mm; xenoliths of McKeahnie Monzogranite|acid intrusive rock|||Y||30-SEP-23
Hall Gully Tuff Member|82491|Hall Gully Tuff|7974|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Currabubula Formation|5055|||Pennsylvanian|||inferred||Pennsylvanian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Rhyolitic tuff.|acid volcanic rock|||N||17-JAN-23
Hallett Coal Member|7980|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Rowan Formation|26878|||Permian||||deposition|Permian|||||||NSW|Yes|39346||||||Defined in Standing Committee of Coalfield Geology of New South Wales 1975. [see card file]. Of Greta Coal Measures, Sydney Basin.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Halls Creek Arenite|7986|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Permian|||||Permian||||||||No|42631||||||Inappropriate name. WA/NT Halls Creek nomenclature takes precedence.|||||N||17-JAN-23
Halls Peak Volcanics|37319|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Permian|||inferred|eruption|Permian|292.6|2|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|24011||||||Lith desc update from GSNSW seamless geology 2023. GSNSW says dating is maximum depositional. Manton et al. (2019), after Moody et al (1993) show the date as magmatic crystallisation.|Siltstone with slaty cleavage, intermediate and silicic igneous rocks interstratified with meta-siltstone, meta-sandstone and paraconglomerate, sporadic sulphide lenses.|metamorphosed acid igneous rock|metasedimentary rock|extensional continental backarc|N||02-SEP-23
Hambledon Hill Member|7997|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Pinegrove Formation|15255|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|29942||||||See also Hambledon Hill Sand Member, Hambledon Hill Sandstone Member.|Sandstone, tuff and siltstone.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Hampden Member|8022|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Drake Volcanics|28513|||Late Permian||||deposition|Late Permian||||||||No|33476||||||May have been replaced by Hampden Slate Member? NO. That unit in Mt Isa area, not NSW.|||||N||17-JAN-23
Hampton Granite|8032|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Redfern Suite|31535|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Not related to Hampton Complex (WA).|Granite|acid intrusive rock|||Y||17-JAN-23
Hangmans Creek Granodiorite|21940|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Ilsley D., Lewis P.|14-FEB-80|||BD as Hangmans Creek Granite in Chappell et al (1991).|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Hannam Vale Granodiorite|82492|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||The Brothers Suite|77628|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Porphyritic microgranodiorite.|acid intrusive rock|||Y|A-type|24-AUG-23
Hanover Formation|8050|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cudal Group|4974|||Pridoli||||deposition|Wenlock||||||300||No|43476|23170|||||Defining ref (Dubbo Explan Notes, 1999) does not mention overlying unit - Cuga Burga comes from previous entry.|Massive to laminated, buff to grey to green to purple, quartzose micaceous shale, siltstone, fine-grained sandstone; rhyolitic tuff, tuffaceous sandstone; minor latitic sandstone and breccia|siliciclastic sedimentary rock|||N||17-JAN-23
Hanrahan Agglomerate Member|8051|||||Yes|Member, phase|Formal|Resvd name published|Defined|Lovetts Formation|10687|||Silurian||||deposition|Silurian||||||70|NSW|Yes|29903||Bowman H.N.|15-SEP-73||||Interbedded dark grey agglomerate and coarse tuffs.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Happy Jacks Monzogranite|77007|Happy Jacks Adamellite|25941|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Pridoli||||intrusion|Wenlock||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Mafic biotite monzogranite rich in K-feldspar, variable to biotite granodiorite; non-porphyritic, strongly sheared, quartz and K-feldspar sheared into lenses, biotite recrystallised to biotite and muscovite|acid intrusive rock|||Y|S-type|30-SEP-23
Happy Valley Granite|28596|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|60086||||||||acid intrusive rock|||Y||17-JAN-23
Harden basalt|8074|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35070||||||||basic volcanic rock|||N||17-JAN-23
Hargrave Coal Member|8089|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Late Permian||||deposition|Late Permian||||||||No|29900||||||||organic rich sedimentary rock|||N||17-JAN-23
Harrisons Peak Granite|25943|Harrison's Peak Granite|32665|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|39800|36413||||||Biotite granite, massive, homogenous, medium-grained|acid intrusive rock|||Y||17-JAN-23
Hartley Granite|26606|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Hartley Suite|31451|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Hartley Hill Coal|8112|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|39308||||||This Formation was downgraded to the informal Hartley Hill coal seam instead. Previously of Boolaroo Subgroup. Reinstated ~2015 as part of Adamstown Subgroup. Updated from GSNSW seamless geology dataset 2021.|Coal and minor tuffaceous 'dirt' bands.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Hartley Hill coal seam|8114|Hartley Hill Coal|8112|||Yes|Formation, beds|Informal|Unknown or process pending|Described|Boolaroo Formation|2217|||Late Permian||||deposition|Late Permian||||||||No|29687||||||Informal unit of Boolaroo Formation. Variously defined over the years and sometimes correlated with the Australasian Coal (seam). The definition of Bewley and Crapp (1972), after Jones (1929) is used here [RefID 68711published 1999], where the seam overlies and is separated from the Australasian coal seam by a characteristic tuffaceous bed (Warners Bay Tuff).||organic rich sedimentary rock|||N||17-JAN-23
Hartley Suite|31451|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bathurst Supersuite|31449|Carboniferous|||||Carboniferous||||||||No|42726|||||||||||Y||17-JAN-23
Hartley Vale Claystone Member|8116|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Caley Formation|28198|||Triassic||||deposition|Triassic|||||||NSW|No|43360|34205||||||||||N||17-JAN-23
Harts Paddock Diorite|38464|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|24133|||||||Diorite|intermediate intrusive rock|||Y||17-JAN-23
Hartwood Tuff Member|28130|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baledmund Formation|954|||Lower Devonian||||eruption|Lower Devonian||||||200|NSW|No|35287|41528|||||Used in GSNSW seamless geology dataset 2021.|Vitric and vitric-crystal felsic tuff.||||N||20-JUL-23
Hat Head Member|69450|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Crescent Head Formation|69439|||Permian||||deposition|Permian||||||||No|||Ollie Raymond|13-JUL-05|||Name reserved for previously unnamed sediments at Hat Head, Hastings 250K. Published in GSNSW seamless geology.|Massive and bedded conglomerate|siliciclastic sedimentary rock|||N||27-SEP-23
Hatchery Creek Group|78899|Hatchery Creek Conglomerate|25047|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Middle Devonian|||inferred, biostratigraphic correlation||Emsian|||inferred, biostratigraphic correlation|||1800||No|67823||||||Of Hunt and Young (2010).|Purple quartz-rich pebble conglomerate, quartz sandstone, minor siltstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Hathaway Conglomerate Member|23644|||||Yes|Member, phase|Formal|Resvd name published|Defined|Burthong Formation|3177|||Lochkovian||||deposition|Pridoli||||||150|NSW|No|41528|41528|S.Trigg|05-OCT-82|||Used in GSNSW seamless geology dataset 2021.|Cross-bedded to massive, arkosic granule- to pebble-conglomerate with minor sandstone and siltstone.||||N||24-JUL-23
Hattons Corner Group|8145|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Lochkovian|||biozone|deposition|Ludlow|||biozone||||NSW|No|31852|68592||||||Fossiliferous shale, calcareous and non-calcareous mudstone, siltstone, black shale, limestone, minor quartz-lithic sandstone|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Havilah Granite|8157|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Gulgong Suite|31452|Pennsylvanian||||intrusion|Namurian||||||||No|43476|23170|||||Not included in the Gulgong Plutonic Suite on the DUBBO 250K.|Equigranular to megacrystic biotite granite, rare pegmatite|acid intrusive rock|||Y|I-type|17-JAN-23
Hawkesbury Sandstone|8165|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Anisian||||deposition|Anisian||||||290||No|43549|||||||Medium to coarse-grained quartz sandstone with minor shale and laminite lenses. Secondary quartz cement.|medium-coarse grained siliciclastic rock|||N||14-AUG-23
Hawkins Suite|8179|Hawkins Volcanic Suite|8182|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Devonian|||||Silurian|434.8|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|41563||||||Defined as Hawkins Volcanic Suite, but name subsequently simplified. Probably part of Bullenbalong Supersuite. See also RefID 67060 p505.|||||Y|S-type|17-JAN-23
Hawkins Volcanics|8184|||||Yes|Formation, beds|Formal|Other new published name|Defined|Douro Group|5668|Hawkins Suite|8179|Wenlock|428.8|1.9|inferred, intrusive relationship|eruption|Wenlock|434.8|4.3|inferred, isotopic correlation|magmatic crystallisation||1770|NSW|No|33325|68592|||||Assigned to the Bullenbalong Suite (Bullenbalong Supersuite) on Lachlan Fold Belt Granites map (1991). Assigned to the Hawkins Volcanic Suite in the Canberra 1:100k sheet area (1991), but this name simplified to Hawkins Suite (probably Bullenbalong Supersuite). Assigned to the Douro Group in the YASS 1:100k sheet area (1978). See also RefID 67060 p505.|Medium-coarse, massive, welded porphyritic dacitic-rhyolitic ignimbrite; subordinate medium-coarse, massive volcaniclastic sandstone, siltstone,mudstone and conglomerate; minor coherent dacite and rhyolite, very minor limestone and volcanic breccia.|acid volcanic rock|siliciclastic sedimentary rock||N|S-type|17-JAN-23
Hawks Nest beds|80190|Hawks Nest Beds|27428|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Devonian|||||Devonian||||||||No|70217|||||||Shale and greywacke.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Hawksview Granite|8189|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Hawksview Suite|31589|Ludlow|422|1.5|isotopic, U/Pb|intrusion|Wenlock||||||||No|60085||||||Unit  just north of the NSW-Vic border.  Nomenclature history is confusing.  A wide variety of GSV and GSNSW publications have referred to both "Hawksview" and "Hawkesview" - the geographic homestead name is "Hawksview".|I-type, felsic, unfractionated granite|acid intrusive rock|||Y||17-JAN-23
Hawksview Suite|31589|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Haydonville serpentinite|75829|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name for small lenses of serpentinite outcropping near Haydonville on the northern tip of the Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Haydonville Serpentinite in figs.|||||N||17-JAN-23
Hazeldean Granodiorite|35616|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gooramma Suite|70027|Emsian||||intrusion|Pragian||||||||No|50231||Pogson D.|17-OCT-00|||Boorowa 1:100 000 sheet area.|Dark grey, medium-grained, massive, porphyritic biotite-pyroxene? granodiorite.|acid intrusive rock|||Y||17-JAN-23
Hazeldene Sandstone|37334|Ardlethan Sandstone|28332|||Yes|Formation, beds|Formal|Resvd name published|Defined|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||200|NSW|Yes|61964|61964|Meakin, S.|30-MAY-02|||For use on the CARGELLIGO 1:250 000 sheet area.  See UNIT DEFINITION. The  lower part of the Ardlethan Sandstone as described by Conolly is now included in the Hazeldene Sandstone.|Fine- to medium-grained, moderately sorted, maroon sandstone with a significant detrital mica component; minor pebbly sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Hazelgrove Formation|39364|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Silurian||||deposition|Devonian||||||||No|24123|||||||||||N||17-JAN-23
Hazelvale Rhyodacite Member|37912|Hazelvale Dacite|30055|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Rocky Creek Conglomerate|16236|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03||||||N||17-JAN-23
Heatherdale Shale|8214|Heatherdale Shales|68691|||Yes|Formation, beds|Formal|Variation of published name|Described|Normanville Group|14255|||Cambrian Series 2|514.98|.22|isotopic, U/Pb-Pb/Pb, TIMS|deposition|Terreneuvian|||inferred|deposition||||No|34014||||||Max Age: 526 (+/-) 6 Ma.|Pyritic, calcareous shale and siltstone, containing bivalve arthropods and conocoryphid trilobites massive to flat-laminated with minor ripple-lamination, black pyritic and phosphatic shale at type section; and thin tuff bed.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Hebden Gully Coal Member|8235|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Permian||||deposition|Permian||||||||No|29942||||||Sydney Basin.|Banded bright and dull seam, calcite in cleats; thin buff tuff band, dark grey pelletoid claystone bands|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Heifer Creek Sandstone Member|8248|||||Yes|Member, phase|Formal|Variation of published name|Redefined|Koukandowie Formation|9839|||Middle Jurassic||||deposition|Lower Jurassic||||||125|QLD|Yes|43993|42248|Wells A.T.|01-MAR-88|NSW SNSC|27-FEB-91|Formerly considered a member of the Marburg Formation.|Quartz rich to quartz-lithic medium to very coarse-grained sandstone in thick fining upward sequences from granule conglomerate to siltstone|siliciclastic sedimentary rock||oceanic backarc|N||17-JAN-23
Hell Hole Creek Monzogranite|76996|Hell Hole Creek Adamellite|24308|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Boggy Plain Suite|2091|Lower Devonian||||intrusion|Lower Devonian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Of the Boggy Plain Suite. Tantangara 1:100k sheet, Lachlan Fold Belt.  Different unit  to Hell Hole Monzogranite in New England. Published in GSNSW seamless geology.|Medium- to coarse-grained, reddish-pink to weathered light pink monzogranite with pale-green plagioclase phenocrysts to 50 mm; minor medium-grained medium-grey granodiorite, minor quartz gabbro|acid intrusive rock|||Y|I-type|26-SEP-23
Helms moraine|8271|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|34367|||||||||||N||17-JAN-23
Henleigh Siltstone|73653|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Bendigonian||||deposition|Lower Ordovician||||||310||No|63279|||||||Consists of  laminated siltstone and shale, interbedded with volcaniclastic sandstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Hennings Tank Tuff Member|23648|||||Yes|Member, phase|Formal|Resvd name published|Defined|Baledmund Formation|954|||Lower Devonian||||eruption|Lower Devonian|||||||NSW|No|41528|41528|G.MacRae|28-MAR-85|||Used in GSNSW seamless geology dataset 2021.|Rhyolitic vitric tuff, minor bedded crystal tuff.||||N||20-JUL-23
Henry River Granite|8273|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Henry River Suite|73917|Stephanian||||intrusion|Namurian||||||||No|30789||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly in the Hillgrove Suite; now in the Henry River Suite (Hillgrove Supersuite). Not to be confused with Henry River nomenclature in WA - Henry River Formation.|Foliated, fine-grained, biotite granite (monzogranite?). Characterised by an irregular texture and blue quartz, with common metasedimentary enclaves|acid intrusive rock|||Y|S-type|17-JAN-23
Henry River Monzogranite|82497|Henry River Granite|8273|||Yes|Formation, beds|Formal|Variation of published name|Described|||Hillgrove Supersuite|67847|Sakmarian|||inferred||Sakmarian|293.1|5.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Grey-blue, texturally heterogeneous, fine- to medium-grained biotite monzogranite-granodiorite; locally amphibole bearing; weakly to strongly foliated. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Hensleigh Siltstone|8277|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Fairbridge Volcanic Group|6474|||Floian|||inferred, biostratigraphic correlation|deposition|Floian|||inferred, biostratigraphic correlation||310|2000||No|35118|23170|||||Represents a cessation of volcanic activity. Age: Early Bendigonian on the basis of fossil assemblage.|Laminated graptolitic siltstone; minor volcaniclastic sandstone, allochthonous limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Herndale Coal Member|77368|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Herries Monzogranite|82470|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Granite Hills Complex|82469|Lower Triassic|||||Lopingian|251.8|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pale pink to greyish pink, medium- to coarse-grained, slightly to moderately porphyritic hornblende-biotite monzogranite; minor tonalite. I-type.|acid intrusive rock|||Y|I-type|21-AUG-23
Hervey Group|25947|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Upper Devonian||||deposition|Frasnian||||||1600|NSW|No|43507|35070|||||Subdivided into: Beargamil, Nangar and Cookamidgera Subgroups by Conolly 1965a. Age stated to be: 354-365 Ma in palaeomag paper, but more likely to be determined from fossils and correlations. Includes Famennian Bothriolepis-phyllolepid-Remigolepis-Groenlandasapis associations of placoderms, distinguished as Jemalong-Canowindra fauna and Grenfell fauna. Also includes tetrapods and lungfishes [see RefID68298 publ 1993].|Terrigenous to shallow marine, red to white and green, quartzose to lithic sandstone, siltstone, shale and conglomerate; sandstones commonly thick-bedded and massive to cross-stratified.|siliciclastic sedimentary rock|||N||17-JAN-23
Hexham Subgroup|25055|||||Yes|Subgroup|Formal|Variation of published name|Briefly described|Tomago Coal Measures|18289||||||||||||||||No|42214||||||Probably supersedes Hexham Formation.|||||N||17-JAN-23
Hianana Volcanics|23649|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Coombadjha Volcanic Complex|23506|||Late Permian||||eruption|Cisuralian||||||||No|41041||J.McPhie|11-MAY-82||||Volcanic breccia composed of block-sized fragments of porphyry; massive porphyritic lava with plagioclase phenocrysts and bedded volcaniclastics composed of angular volcanic lithic and crystal fragments, typically coarse ash in finer matrix|igneous volcanic rock|||N||17-JAN-23
Hianana Volcanics Member|82498|Hianana Volcanics|23649|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Coombadjha Formation|82391|||Late Permian|||||Cisuralian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.
|Volcanic breccia (block-sized porphyry clasts); massive porphyry (emplaced as a lava) with plagioclase phenocrysts; bedded volcaniclastic rock composed of angular volcanic lithic and crystal fragments, matrix is coarse-grained volcaniclastic sandstone.|igneous volcanic rock|||N||17-JAN-23
Hickory Hill Diorite|81811|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Lower Devonian|410.8|1.7|isotopic, U/Pb-Pb/Pb ion probe||Lower Devonian||||||||No|||Eastlake, M. (GSNSW)|21-JAN-20|||Named for Hickory Hill located immediately east of the intrusion. Nearest town is Ryan, NSW. Hickory Hill Diorite is not exposed at the surface, but was intersected in drill core by holes targeting the high magnetic response that is characteristic of the unit in geophysical images. It forms an elongate north-south trending body approximately 10 km long occupying a fault at the western margin of the Wallandoon Ignimbrite. The unit is expected to be published in the Geological Survey of New South Wales Stratigraphic Unit Tables during 2020.|Seriate-textured, medium-grained (0.5-7 mm) hornblende quartz-diorite.|intermediate intrusive rock|||Y||17-JAN-23
Higgins Creek Conglomerate|8329|Higgins Creek Sandstone|8330|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|34040|||||||||||N||17-JAN-23
High Valley andesite tuff|37297|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Caroda Formation|3651|||Carboniferous||||eruption|Carboniferous||||||||No|24010||||||||intermediate volcanic rock|||N||17-JAN-23
Highfields Formation|8336|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|43447|||||||||||N||17-JAN-23
Highlands Complex|8337|Highlands Igneous Complex|29564|||Yes|Formation, beds|Formal|Other new published name|Described|||Highlands Suite|73960|Lower Triassic||||intrusion|Late Permian|251.5|1.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|42866||||||Granitoid of the Moonbi Supersuite.|Hypersthene-augite-amphibole-biotite monzonite, amphibole-biotite monzogranite, syenite. High-K I-type granitoids|intermediate intrusive rock|||N|I-type|21-AUG-23
Hill 60 Member|8344|Hill 60 member|8345|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43418||||||Tamwoth Belt.|||||N||17-JAN-23
Hill End conglomerate|8346|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37433|||||||||||N||17-JAN-23
Hillcrest Tuff Member|27084|||||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Babinda Volcanics|25702|||Lower Devonian||||eruption|Lower Devonian||||||700|NSW|No|35287|41528|||||Used in GSNSW seamless geology dataset 2021.|Rhyolitic vitric tuff and minor crystal tuff.||||N||20-JUL-23
Hillgrove Monzogranite|76953|Hillgrove Adamellite|8349|||Yes|Formation, beds|Formal|Variation of published name|Described|||Hillgrove Supersuite|67847|Permian|269|||intrusion|Permian|297|||||||No|69639||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for description. See also Hillgrove Granite (289+/-25 Ma, whole rock Rb-Sr age).|Biotite monzogranite; commonly foliated S-type biotite granitoids commonly with blue quartz, minor amphibole, garnet and graphite.|acid intrusive rock|||Y|S-type|27-SEP-23
Hillgrove Supersuite|67847|Hillgrove Plutonic Suite|8350|||Yes|Supergroup|Formal|Variation of published name|Described|||||Cisuralian|288||isotopic, Lu/Hf||Pennsylvanian|303|||||||No|24513||||||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007. Partly replaced by Bakers Creek Supersuite. Used in GSNSW seamless geology dataset 2021. Lithology description from GSNSW seamless geology 2023.|Monzogranite, granodiorite and leucomonzogranite.|acid intrusive rock|||Y|S-type|28-SEP-23
Hillsborough Tuff Member|8354|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Kahibah Formation|25098|||Lopingian|||inferred|eruption|Lopingian|||inferred|||||No|34351||||||This Member was dropped in ~1999. Formerly of Kahibah Formation, Adamstown Subgroup, Newcastle Coal Measures. Rocks then included in Adamstown Formation. Adamstown Subgroup reinstated ~2015, along with all its formations and members. Updated from GSNSW seamless geology dataset 2021.|Tuff, tuffaceous claystone.|igneous volcanic rock|||N||17-JAN-23
Hillsdale Coal Member|8357|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Dights Creek Coal|5479|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Aparently not currently used in NSW (May 2011, June 2012)||organic rich sedimentary rock|||N||17-JAN-23
Hillside Claystone Member|38204|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|||||Permian||||deposition|Permian||||||||No|23717||||||See also Hillside Member.|||||N||17-JAN-23
Hillston Volcanic Complex|30938|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Hope Group|25281|||Lower Devonian||||eruption|Pridoli||||||||No|22508||Cameron R.|24-APR-96|||Pooncarie 1:250 000 geol. sheet. To be published 1996. On Merriwagga 1:100 000 (2008) unit does not outcrop in map area - is shown only in the interpretative cross-section.|Crystal tuff with weakly flow-oriented fabric, minor siltstone xenoliths; quartz-mica diorite; porphyritic coherent rhyolite; porphyritic microgranite; ferruginous quartzite. Volcanics are sericitised and kaolinised.||||N||06-SEP-23
Hilltop Coal Member|8363|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|37773||||||Sydney Basin. Coal member of the Savoy Trig Station area||organic rich sedimentary rock|||N||17-JAN-23
Hillview Gabbro Phase|82439|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Woodburn Complex|82435|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Compositionally and texturally zoned, medium- to coarse-grained, leucocratic olivine gabbro and clinopyroxene-orthopyroxene-leucogabbro; chilled marginal phase.|basic intrusive rock|||Y|I-type|17-JAN-23
Himalaya Formation|8373|||||Yes|Formation, beds|Formal|Other new published name|Defined|Thackaringa Group|25749|Himalaya Suite|33124|Statherian|1690|11|inferred|deposition|Statherian|1730||inferred|maximum depositional age|20|1000|NSW|No|38969|39662|I.L.Willis|09-FEB-82|||Part of Himalaya Suite used in Proterozoic Granites Project. Intruded by Potosi Supersuite. Within the Willyama Supergroup. Max. depositional age considered to be close to +1730Ma.|Medium-grained saccharoidal leucocratic psammitic and albitic metasediment. Variably-interbedded albite-quartz rich rocks, composite gneiss, basic gneiss, horizons of thinly-beded quartz-magnetite rock. Pyrite-rich rocks towards bottom.|metasedimentary rock|foliated metamorphic rock|continental rift|N|S-type|17-JAN-23
Himalaya Suite|33124|||||Yes|Group, Suite|Informal|STRATLEX Entry|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|50606||||||Broken Hill area. May extend into SA. Used in Proterozoic Granites Project, Broken Hill - Olary Province.|||||Y||17-JAN-23
Hobden Gully Coal Member|8391|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Dights Creek Coal|5479|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Hobwee Basalt|8395|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lamington Volcanics|10120|||Early Miocene||||eruption|Early Miocene||||||600||No|44871|44871|||||Defined 1962.|Olivine basalt|basic volcanic rock|||N||17-JAN-23
Holbrook Granite|8422|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian|415.1|2||intrusion|Lower Devonian|415.1|2||||||No|42726||||||Briefly described. Formal name not intended|I-type, felsic, unfractionated granite|acid intrusive rock|||Y||21-AUG-23
Hollanders Formation|23650|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mumbil Group|13411|||Lower Devonian||||deposition|Late Silurian||||||330||No|42712||Stuart-Smith P.|01-JUN-93|||Bathurst 1:250 000 sheet area, DESC in 94/27645.|Limestone, mudstone, arenite, siltstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||05-SEP-23
Hollymount Formation|24312|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Miocene||||deposition|Oligocene|||||1|15|NSW|Yes|39848|39848|P.Bishop|28-MAR-84|NSW SNSC|04-OCT-84||Unconsolidated alluvial quartzose sand, polymictic gravel, and consolidated silcrete and quartz- and iron-cemented sandstone.|regolith|siliciclastic sedimentary rock||N||17-JAN-23
Home Rule Quartz Monzonite|33384|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gulgong Suite|31452|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|23043|23170|Cameron R.|16-FEB-99|||Dubbo 1:250 000 sheet area.|Leucocratic coarse-grained to megacrystic porphyritic quartz monzonite, minor granite|intermediate intrusive rock|||Y||17-JAN-23
Homeleigh Agglomerate Member|8440|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Cenozoic||||deposition|Cenozoic|||||5|30|NSW|Yes|30604|30604|Duggan M.B., Mason D.R.|20-OCT-76|Hawke, J.|08-DEC-76|See also Homeleigh Agglomerate.|||||N||17-JAN-23
Homestead Gorge Formation|70130|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wana Karnu Group|70131|||Lower Devonian||||deposition|Lower Devonian||||||||No|66918|66623|Sharp, T.|10-MAR-06|||To be used in the Broken Hill Region.|Thick to very thick beds of white to buff quartz sandstone, pebbly in places, with horizons of vertical worm burrows.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Homeville Coal Member|8446|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|45090||||||||organic rich sedimentary rock|||N||17-JAN-23
Honeybugle Complex|8451|Honeybugle complex|8454|||Yes|Formation, beds|Formal|Variation of published name|Described|||Fifield Suite|77333|Aeronian|442.1|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Hirnantian|442.1|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|41594||||||Max Age: 445 (+/-) 6 Ma. Used in GSNSW seamless geology dataset 2021, 2023..|Hornblendite, hornblende-bearing pyroxenite, anorthositic norite, lherzolite, peridotite, hornblende monzonite, syenodiorite, fine-grained amphibolite, includes some metasediments (largely concealed, based on aeromagnetic imagery)|ultramafic intrusive rock|intermediate intrusive rock||Y||13-JUN-23
Honeysuckle Creek Leucosyenogranite|82499|Honeysuckle Creek Leucomonzogranite|41064|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pink to cream, fine- to medium-grained, equigranular biotite leucosyenogranite with lesser porphyritic and aphanitic variants. Has well-developed jointing. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Honeysuckle beds|32687|Honeysuckle Beds|25950|||Yes|Formation, beds|Informal|Variation of published name|Redefined|||||Late Silurian|||||Late Silurian||||||||No|22638|22638|||||Placed by Stuart-Smith (1990b) as above the Blowering Formation but further study and age determination is required to solve the controversy over timing of events.  See also Honeysuckle Metabasic Igneous Complex and "Honeysuckle beds".|Metabasalt; minor metadolerite, meta-andesite, siltstone, shale, quartzite; dolerite, amphibolite, ultramafic rocks, gabbro, intermediate volcanic rocks, lithic tuff|metamorphosed basic igneous rock|||N||17-JAN-23
Hooray Sandstone|8476|Tarlton Formation|17854|||Yes|Formation, beds|Formal|Other new published name|Defined|Blythesdale Group|2034|||Valanginian||||deposition|Tithonian||||||200|QLD|No|44375|63979|||||Of Woolley (1941), Exon (1966). See also De Souza Sandstone. Incorporates both Tarlton Fm and Longsight Sst - although prominent outcrops previously mapped as Tarlton Formation are now assigned to Kelly Creek Formation. Detailed lithology+nomenclatural history in RefID: 63979. Some references include this unit in the Georgina Basin but this Jurassic unit overlies Georgina Basin rocks. Formerly part of Rolling Downs Group. A major aquifer in the Great Artesian Basin.|Fluvial, pale coloured, medium- to coarse-grained, quartzose sandstone, commonly cross bedded and pebbly; minor siltstone, conglomerate, coal.|siliciclastic sedimentary rock|organic rich sedimentary rock|continental rift|N||17-JAN-23
Hopping Joe Granite|26620|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Hopping Joe Suite|31488|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Hopping Joe Suite|31488|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Hores Gneiss|8489|Parnell gneiss|14910|||Yes|Formation, beds|Formal|Resvd name published|Defined|Purnamoota Subgroup|15683|Mount Gipps Igneous Suite|35739|Statherian|1685|3|isotopic, U/Pb-Pb/Pb ion probe||Statherian|1690|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||200|NSW|No|38969|39662|B.P.J.Stevens|25-JAN-82|||Max Age: 1690 +/- 5 Ma. Now considered to be volcaniclastic (B. Stevens 14-FEB-2001). Within the Broken Hill Group, Willyama Supergroup. Hosts the Broken Hill orebody.|Quartz-feldspar-biotite-garnet gneiss, interpreted as metadacite. Minor metasediments included. Lithology includes Potosi-type gneiss.|metamorphosed acid igneous rock|metasedimentary rock|continental rift|N|S-type|17-JAN-23
Horse Arm Formation|70278|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Upper Devonian||||deposition|Lower Devonian||||||||No|66720||Brown, R. (NSW GS)|28-APR-06||||Volcanic breccia, andesite, conglomerate, sandstone, siltstone, rare limestone and calcareous sandstone|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Horseshoe Creek Subgroup|8506|Horseshoe Creek Sub-Group|8505|||Yes|Subgroup|Formal|Unknown or process pending|Described|Wollombi Coal Measures|20362|||Late Permian|||||Late Permian||||||110||No|41010|||||||||||N||17-JAN-23
Horton ultramafic|83912|Horton Park Igneous Complex|77341|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)||||Of Fifield Suite. Reserved as Horton Park ultramafic. Used in GSNSW seamless geology dataset 2022, 2023, and GA alkaline rocks dataset.|Ultramafic igneous rock.||||U||11-JUN-23
Hoskins Chert|35282|Hoskins Formation|25951|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Jindalee Group|27440|||Upper Ordovician|||inferred, biostratigraphic correlation|deposition|Middle Ordovician|||inferred, biostratigraphic correlation||||NSW|No|24417||Wallace D. after Bowman H.N.|09-DEC-99|||Redefinition of Hoskins Formation. Previously reserved as Hoskins Chert Member. The dominant chert lithology remains. The mafic volcanics become part of the Brangan Volcanics (which are more abundant in the South). Age from conodonts: an Ordovician fragmented ophiolite sequence within a Silurian sedimentary matrix (Jindalee Grroup).|Chert, cherty siltstone, quartz, localised manganese horizons|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Hoskinstown Group|8512|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Ludlow|||inferred, biostratigraphic correlation||Wenlock|||inferred, biostratigraphic correlation|||5000|NSW|Yes|48878|42820|||||Previously Captains Flat Group (Glasson and Paine, 1965).||fine grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Hoskissons Coal|8515|Hoskissons Coal Member|28610|||Yes|Formation, beds|Formal|Variation of published name|Described|Coogal Subgroup|30031|||Lopingian||||deposition|Lopingian|258.05|.08|isotopic, U/Pb-Pb/Pb, TIMS|deposition||18||No|41290||||||Used in GSNSW seamless geology dataset 2021. Within the Black Jack Group.|Coal with subordinate sandstone, carbonaceous siltstone, claystone and tuff.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||27-APR-23
Hospital Porphyry|35852|Hospital Hill Porphyry|26621|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Upper Devonian||||eruption|Middle Devonian||||||||No|60007||||||Probable variation on Hospital Hill Porphyry. Was included in Boyd Volcanic Complex in 1994. Reinstated in 2000?|||||U||17-JAN-23
Hovells Suite|69895|Wyangala Suite|20700|||Yes|Group, Suite|Formal|Other new published name|Defined|||Wyangala Supersuite|20701|Devonian||||intrusion|Silurian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006). Replaces Wyangala Suite. Also incorporates part of old Wheeo Suite.|Typically cream to grey, medium- to coarse-grained, massive to foliated, equigranular to porphyritic (often megacrystic) cordierite-muscovite-biotite granite and granodiorite. Characteristically megacrystic in K-feldspar.|acid intrusive rock|||Y|S-type|17-JAN-23
Howe Range Granite|26622|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Gabo Suite|6947|Middle Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G2|Brick-red granite even-grained with perthitic alkali feldspar dominated over plagioclase; khaki coloured ferrohastingsite and Fe-rich biotite; accessory magnetite, zoned zircon, allanite, apatite and secondary fluorite.|acid intrusive rock|||Y|A-type|17-JAN-23
Howes Hill Coal Member|77378|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Benelabri Formation|41275|||Permian||||deposition|Permian||||deposition||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021. See also Howes Hill Seam.|Coal, upward-dulling lithotype profile, basal interlayered bright and dull plies, sporadic bright layers in the middle, and dull layers at the top. Thin carbonaceous claystone layers separate the three sections|organic rich sedimentary rock|||N||27-APR-23
Howlong Hill Granite|82500|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lochkovian|||||Pridoli|415.3|4.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Porphyritic microgranite composed of quartz, K-feldspar and sodic plagioclase that occur both as 1-3 mm phenocrysts and as groundmass.|acid intrusive rock|||Y||05-SEP-23
Howqua Chert|8538|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Floian||||deposition|Late Cambrian|485||inferred, biostratigraphic correlation||480|600||No|32074||||||Dated by conodonts and graptolites.|Black chert, siliceous shale, mafic sandstone, pebbly sandstone and chert conglomerate.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Hudsons Peak Ignimbrite Member|82501|Hudsons Peak Andesite|8556|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Newtown Formation|26078|||Visean|||inferred||Visean|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as Hudsons Peak Ignimbrite member.|Ignimbrite.|acid volcanic rock|||N||17-JAN-23
Hudsons Peak Ignimbrite Member, Johns Hill Ignimbrite Member, Martins Creek Ignimbrite Member|42357|||||Yes|Member, phase|Informal|Variation of published name|Not recorded|Newtown Formation|26078|||Visean||||eruption|Visean||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Ignimbrite|acid volcanic rock|||N||17-JAN-23
Hughies Bore beds|21981|||||Yes|Formation, beds|Informal|Resvd name published|Defined|Mulga Downs Group|26063|||Tournaisian|||||Middle Devonian||||||||No|44188|22893|Cameron R.|15-FEB-95|||Pooncarie 1:250 000 geol. sheet, 1996. Lithology description from GSNSW seamless geology 2023.|Fine- to medium-grained quartz arenite, low angle crossbeds and trough crossbeds. Sporadic interbeds with silicified siltstone or mudstone intra-clasts (leaving pseudo-fossil impressions on bedding planes).||||N||28-SEP-23
Hulong Conglomerate Member|74213|Willow Bridge Tuff|20116|||Yes|Member, phase|Formal|Other new published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|deposition|Wenlock|||inferred, underlying unit||||NSW|No|64238|68592|Pogson, D. / NSW|16-APR-08|Sherwin, L.|16-APR-08|For use on the 1:100K map sheet for YASS. Published: GOULB URN 1:250K geological sheet SI/55-12, 2nd.ed. Explanatory Notes 2012. Previously included in the Willow Bridge Tuff of Cramsie et al (1975) and the Laidlaw Volcanics of Owen & Wyborn (1979).|Varicoloured polymictic pebble paraconglomerate sporadically grading to orthoconglomerate. Composed of clasts of chert, ?vitric tuff, ?siliceous mudstone in a matrix of medium- to very fine-grained quartz litharenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Hume Limestone Member|8569|Hume Limestone|8571|||Yes|Member, phase|Formal|Variation of published name|Defined|Silverdale Formation|16898|||Ludlow|||biozone|deposition|Ludlow|||biozone||7|26.5|NSW|No|29989|68592|||||Originally included in Jenkins (1878)  'Hume Beds', which were much more extensive.|Coralline and crinoidal biomicrites and biosparites, shaly mudstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Hume Park Granite|8572|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Young Suite|31669|Ludlow||||intrusion|Ludlow||||||||No|34405|||||||Medium-coarse grained, equigranular to porphyritic, cordierite?-biotite granite and granodiorite with sparse biotite rich dioritic enclaves and rare metasandstone xenoliths.|acid intrusive rock|||Y||17-JAN-23
Humewood Volcanic Sandstone Member|74212|||||Yes|Member, phase|Formal|Other new published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|eruption|Wenlock|||inferred, underlying unit||170|430|NSW|No|64238|68592|Pogson, D. / NSW|16-APR-08|Sherwin, L.|16-APR-08|Previously included in the Willow Bridge Tuff of Cramsie et al (1975) and the Laidlaw Volcanics of Owen & Wyborn (1979). For use on the 1:100K map sheet for YASS.  Member of the Yanawe Formation (Douro Group). Published: GOULB URN 1:250K geological sheet SI/55-12, 2nd.ed. Explanatory Notes (2012).|varicoloured very coarse grained, crystal rich volcaniclastic sandstone; sporadically thinly banded with a fragmental texture and bimodal sorting; high magnetic susceptibility.|siliciclastic sedimentary rock|||N||17-JAN-23
Hummock Formation|73520|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kayrunnera Group|9352|||Furongian||||deposition|Miaolingian||||||||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Age from GSNSW seamless geology 2023.|White to red-maroon, well-laminated to festoon cross-bedded, medium- to fine-grained quartzite (originally quartz sandstone); minor siltstone and conglomerate interbeds near the base. Regionally metamorphosed to greenschist facies.|metasedimentary siliciclastic rock|||N||30-SEP-23
Hungerford Granite|8589|Eulo Ridge Granite|68103|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lochkovian||||intrusion|Pridoli|419.1|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|43386||||||It appears that this unit was merged into the Eulo Ridge Granite for some years, but has recently (2012) been recognised as a separate unit again. In Geology of Queensland 2013, p166-7, Eulo Ridge, SW Qld. Exposed in scattered outcrops between Hungerford on the NSW-QLD border and  Eulo 100km north in QLD. c.361 Ma K-Ar dating by Evernden and Richards (1962) and 385 Ma SHRIMP-IIe dating by Geoscience Australia (Glen et al. 2010, RefID69002).|Grey, porphyritic muscovite-biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Hunter Formation|31710|Hunter Siltstone|8592|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hervey Group|25947|||Upper Devonian||||deposition|Upper Devonian||||||525|NSW|No|43782|23392|||||Bathurst 1997, Forbes 1999 1:250 000 sheets. Hunter Siltstone includes Grenfell fauna which may be slightly younger than Worange Point Formation fauna.|Red-brown siltstone and mudstone with minor thin interbeds of pinkish white sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Hunter Valley Volcanics|8593|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|33220|||||||||||N||17-JAN-23
Huntingdale Volcanics|30856|Huntingdale Porphyry|8597|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Lower Devonian||||eruption|Lower Devonian||||||||No|22529||Colquhoun G. Meakin S.|30-JAN-97|||To be used in GSNSW Quarterly Notes article, Mudgee area. Lithology description from GSNSW seamless geology 2023.|Rhyolitic and dacitic, crystal-rich to vitric ignimbrite, silicic vitric tuff, volcaniclastic sandstone to pebbly sandstone.|intermediate volcanic rock|||N||28-SEP-23
Huntley Claystone Member|21983|||||Yes|Member, phase|Formal|Resvd name published|Described|Bargo Claystone|1098|||||||deposition||254.86|.3||||||No|24471||Hutton A.|20-DEC-90|||Appears to have been initially published as Huntley Claystone, before a couple of uses as a Member. NSW Seamless uses Huntley Claystone Member.|Tuffaceous claystone.||||N||14-AUG-23
Hunton Group|68913|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Pridoli|||||Ludlow||||||||No|60332|||||||||||N||17-JAN-23
Hurlstone Monzogranite|76981|Hurlstone Adamellite|21986|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Myocum Suite|31523|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Pink monzogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Hutton Sandstone|8610|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Bundamba Group|2963|||Callovian|||biozone|deposition|Pliensbachian|||biozone||40|290|QLD|No|44727|63979|||||Surat and Eromanga Basins. Early to Middle Jurassic in age from palynological evidence, see Strzelecki 1:250k explan notes (1995).   A high-quality aquifer in the Great Artesian Basin.|Poorly sorted, coarse to medium-grained, feldspathic sublabile sandstone (at base) and fine-grained, well-sorted quartzose sandstone (at top); minor carbonaceous siltstone, mudstone, coal and rare pebble conglomerate.|siliciclastic sedimentary rock|organic rich sedimentary rock|intracratonic|N||17-JAN-23
Hutton Sandstone, lower|39796|Hutton Sandstone|8610|||Yes|Member, phase|Informal|Variation of published name|Mentioned|||||Middle Jurassic|||inferred, overlying unit|deposition|Pliensbachian||||deposition||||No|60999||||||Informal subdivision of Hutton Sandstone.|||||N||17-JAN-23
Hyandra Creek Group|8619|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Lochkovian||||eruption|Lochkovian||||||||No|43476||||||Part of Boggy Plain Suite? In Dubbo 1:250 000 map sheet area. Suite grouping not used by GSNSW.|Dacite, rhyolite, rhyolite breccia, trachylatite, minor lithic sandstone.|acid volcanic rock|||N||17-JAN-23
Hyde Creek Granodiorite|21987|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Hyde Creek Suite|31462|Lower Devonian||||intrusion|Lower Devonian||||||||No|43233||Lewis P.|21-DEC-90|||BD as Hyde Creek Granite in Chappell et al (1991), but formal name not intended.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Hyde Creek Suite|31462|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Hyde Greywacke Member|8621|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Goonoo Goonoo Mudstone|7573|||Mississippian||||deposition|Upper Devonian|||||||NSW|No|43399|43399||||||Dark green, lithic labile greywacke with graded bedding.||||N||20-JUL-23
Hyland Creek Gabbro|77610|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Permian||||intrusion|Permian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Myall Syncline. Unit used in Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY (as Unnamed gabbro (at Hyland Creek)  and also in Geoscience Australia's Mafic-Ultramafic Event Series dataset 2013. Published in GSNSW seamless geology.|Quartz gabbro.|basic intrusive rock|||Y||29-SEP-23
Hylea Intrusive Complex|8630|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Fifield Suite|77333|Llandovery|442.8|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Ordovician|448|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|Yes|40365|40365|Stroud W.J.|01-FEB-73|||K-Ar age: 405 Ma (Pogson and Hilyard, 1981) - possible metamorphic age.  SHRIMP age: 448+/-4Ma (Elliott and Martin, 1991). also used in GSNSW seamless geology dataset 2021.|Upper phase: a coarse-grained melanocratic hornblendite cumulate. Lower phase: Fine-grained leucocratic syenodiorite|ultramafic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Hyndmans Creek Formation|21988|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Namurian||||deposition|Visean||||||2000|NSW|No|22736|22736|Roberts J.|06-SEP-93|||Southern Hastings Block unit, author recomends use as replacement for lower section of Cooperabung Formation.|Thinly and regularly interbedded siltstone and fine volcanolithic sandstone with minor intraformational breccia.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Icely Granite|8637|Icely Road Quartz Monzonite|8638|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bathurst Suite|31450|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|42726||||||Formal name not intended in Chappell et al (1991).|Porphyritic alkali feldspar granite, biotite granite, leucogranite|acid intrusive rock|||Y||17-JAN-23
Illabo Formation|21992|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Ordovician|||inferred, biostratigraphic correlation|deposition|Upper Ordovician|||inferred, biostratigraphic correlation|||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes|Interbedded siltstone, chert and siliceous siltstone with minor sandstone intervals.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Illaroo Lamprophyre|83462|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neogene|||inferred||Paleogene|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Lamprophyric quartz diorite.|intermediate intrusive rock|exotic composition igneous rock||Y||17-JAN-23
Illawambra Monzogranite|76982|Illawambra Adamellite|21993|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Hornblende monzogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Illawarra Coal Measures|27802|Wollondilly Coal Measures|20366|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Changhsingian||||deposition|Wordian||||||150|NSW|No|43346|23170|||||See also Lexicon. SI56-9. Now Nile Subgroup and  Charbon Subgroup (Goldbery, 1969). Equivalent Newcastle and Tomago Coal Measures (Packham, 1969). Previously referred to as Wallerawang Coal Measures, Lithgow Coal Measures and the Western Coal Measures.|Shale, quartz-lithic sandstone, conglomerate, chert, sporadically carbonaceous mudstone, coal and torbanite seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Illunie Volcanics|31839|Illunie Rhyolite|8666|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Douro Group|5668|||Silurian||||eruption|Early Silurian||||||||No|23392|24417|Lachlan Project (O. Raymond)|22-APR-99|||To be used in the Grenfell 1:100 000 sheet area.|Quartz-plagioclase-biotite phyric rhyodacite|acid volcanic rock|||N||17-JAN-23
Ina Volcanics|24315|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Early Silurian||||eruption|Early Silurian||||||2000|NSW|Yes|35503|35503|K.J.Kemezys|15-JAN-76|Hawke, J.|12-OCT-76|Part of Ootha Formation? Thickness of 2km? The former Cowal Member iis now dusused due to its becoming undifferentiated.|Consist of a succession of rhyolite tuff porphyries, sandstones, andesites, shales and minor conglomerates|acid volcanic rock||oceanic backarc|N||17-JAN-23
Indarra Tuff|80569|Indarra Member|80308|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Gurragong Group|80567|||Lower Devonian|||||Lower Devonian||||||||No|||Bull, K., Gilmore, P. (GSNSW)|30-JUL-18|||East Riverina Project. Includes informal 'lithic ignimbrite' from Cargelligo that has now been extended to the south. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Published in GSNSW seamless geology. Lith desc updated from 2023 version.|Non-welded, pumice- and shard-bearing, poorly to moderately crystal-rich, rhyolite-lithic, volcaniclastic sandstone. (Subaerial pyroclastic deposits including lithic-rich ignimbrite and  crystal lithic tuff.)|acid volcanic rock|||N||26-SEP-23
Ingalara Ashstone Member|21998|||||Yes|Member, phase|Informal|Resvd name published|Defined|Colinton Volcanics|4334|||Late Silurian|||inferred, overlying unit|deposition|Late Silurian|||inferred, underlying unit|||250|NSW|Yes|49690||Henderson G.A.M.|02-AUG-85|||Appears in BMR Record 1990/35. GS NSW appears to have reduced this unit to informal status [2013 State list, CEB]. Age from Colinton Volcanics. Change in numerical age boundary for Silurian/Devonian Periods since 1995 has changed the age of this unit from late Silurian to Early Devonian.[CEB Nov2014][?but recent radiometric ages from related units eg Williamsdale Dacite Member, are Late Silurian CEB Feb2018]|Pale buff to white, siliceous, fine-grained tuff or ashstone. Consists of white to very pale grey, fine-grained, massive to faintly banded rhyolitic tuff or ashstone.|acid volcanic rock|||N||17-JAN-23
Ingebyrah Granodiorite|8688|Ingebyrah Granite|8687|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Ingebyrah Suite|8689|Early Silurian||||intrusion|Early Silurian|||||||NSW|No|33782|41905|||||This unit is called the Suggan Buggan Granodiorite in Victoria (Geol Survey of Victoria)|Grey, medium and coarse grained, massive, biotite-cordierite granodiorite and tonalite commonly containing metasedimentary xenoliths|acid intrusive rock|||Y|S-type|17-JAN-23
Ingebyrah Suite|8689|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Bullenbalong Supersuite|2897|Late Silurian|||||Late Silurian||||||||No|41898||||||Named from Ingebyrah pluton but consists of two plutons (Ingebyrah and Pot Hole).|The Ingebyrah pluton rocks are grey cordierite; rocks of Pot Hole pluton have same mineral assemblage and contain large quartz aggregates.||||Y||17-JAN-23
Ingleba Leucomonzogranite|82503|Ingleba Monzogranite|67905|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kilburnie Suite|73923|Cisuralian|289||isotopic, Rb/Sr||Kasimovian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to coarse-grained biotite syenogranite-monzogranite. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Ingleba Monzogranite|67905|Ingleba Adamellite|8695|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ingleba Suite|73922|Stephanian||||intrusion|Namurian||||||||No|||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Within the Hillgrove Supersuite. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y||17-JAN-23
Ingleburn Formation|8696|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Queens Pinch Group|30152|||Emsian||||deposition|Pragian||||||600||No|43476|23170||||||Dacite and andesite lava, fossiliferous mudstone, polymictic conglomerate, quartz arenite.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Injune Creek Group|8710|Injune Creek Beds|8709|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Tithonian||||deposition|Bathonian|168|||||775||No|44021|44021|||||Originally the informally-named Injune Creek Beds (Jensen 1921); subsequently renamed and formally defined as Injune Creek Group by Exon (1966); its stratigraphy was amended by Swarbrick et al. (1973).|Calcareous lithic sandstone, siltstone, mudstone, coal, conglomerate|medium-coarse grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Inlet Monzogranite|76004|Inlet Monzonite|8716|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Moonbi Supersuite|36465|Lower Triassic|251.3|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Late Permian|252.8|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Weakly zoned, equigranular to porphyritic, mafic-rich, quartz-poor monzogranite, with lesser quartz monzodiorite and granodiorite. Abundant enclaves. I-type.|acid intrusive rock|||Y|I-type|16-AUG-23
Inner Barrier formation|8735|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|31011|||||||||||N||17-JAN-23
Inspiration Point Formation|83835|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pridoli|||||Wenlock||||||3220|NSW|No|73582|||||||Tuffaceous sandstone, limestone, siltstone, conglomerate and sandstone, with interbedded silicic lavas (spilite, quartz porphyry, silicic and dacitic flows).|medium-coarse grained siliciclastic rock|acid volcanic rock||N||04-AUG-23
Inverary Tonalite|24317|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|40132|40132|B.G.Jones|10-FEB-78|Russell, T.|18-JUN-82|Of the Marulan Batholith.  See also Inverary Granite.|||||Y||17-JAN-23
Inverell Volcanics|69820|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Delungra Volcanic Suite|69824|Early Miocene|18.5|1|isotopic, K/Ar|eruption|Early Miocene|19.8|.2|isotopic, K/Ar|||80|NSW|Yes|63347|63347|Dawson, M. (DPI, NSW)|15-NOV-05|||For Sheet 9138; nearest town is Inverell.|Undersaturated alkaline olivine basalt / basinite and weathered volcaniclastic rocks.|basic volcanic rock|||N||27-APR-23
Inverleith Sandstone|8748|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Yarra Yarra Creek Group|29299|||Emsian||||deposition|Emsian||||||350||No|9548||||||Lithology description from GSNSW seamless geology 2023.|Interbedded fine- to medium-grained laminate and cross-bedded moderately sorted sandstone; thicker cross-bedded units down sequence; flaggy outcrops with impersistent beds.|siliciclastic sedimentary rock|||N||28-SEP-23
Iona Tonalite|8753|Iona Granodiorite|8752|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Currowong Suite|5085|Late Silurian|416.9|4.2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Wenlock|422|3|||||NSW|No|39721|41905|||||Currowong Suite. GSV Code: G54.  See also the informal Iona Granite. Age and lithology updated from GSV data (HG, Dec 2005). See also RefID 67060 p503, 505.|I-type hornblende-biotite tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Ipswich Coal Measures|8762|Ipswich beds|8764|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Upper Triassic||||deposition|Upper Triassic||||||1220||No|44716|44510|||||early Late Triassic.|Shale, conglomerate, sandstone, coal, siltstone, basalt, tuff.|fine grained siliciclastic rock|organic rich sedimentary rock||N||27-AUG-23
Ironbark Creek Arenite|8777|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Sakmarian|||||Sakmarian||||||30|NSW|No|32683|32683|||||Tamworth Belt. Not to be confused with Ironbark nomeclature in Northern Territory. Not the same as Ironbark Formation, also Permian and NSW.|Massive fossiliferous quartzose and lithic sandstone.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Ironbark Formation|33969|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|Four Mile Creek Subgroup|28559|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|22578||||||Sydney Basin. NOT same unit as Ironbark Creek Arenite, New England Fold Belt.|Light grey fine-grained fels-lithic sandstone, grey weakly-laminated siltstone, grey shale sporadically carbonaceous, grey to brown soft claystone, coal: dull and bright bands with calcite-healed cleats|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Ironbong Dacite Member|27165|||||Yes|Member, phase|Formal|Resvd name published|Redefined|Bethungra Formation|28365|||Lower Devonian||||eruption|Lower Devonian||||||200|NSW|Yes|35608|22638|Fitzpatrick K. after B.L. Schmidt||Hawke, J.|20-FEB-79|Used in GSNSW seamless geology dataset 2021|Dacite, rhyolite, rhyodacite, minor conglomerate lenses.||||N||20-JUL-23
Irondale Coal|8780|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian|||||2|3.5|NSW|Yes|38603|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83|Formerly part of Charbon Sub-Group.|Bright coal, generally brighter and thicker towards the top; two or three stone layers.|organic rich sedimentary rock|||N||17-JAN-23
Irondoon Granodiorite|8785|Irondoon Granite|8784|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kuark Metamorphic Complex Supersuite|34704|Lower Devonian||||intrusion|Late Silurian||||||||No|30574||||||To be used again on Craigie, Vic 1:100 000 sheet. Kuark Metamorphic Complex Supersuite. GSV Code: G32. Age and lithology updated from GSV data (HG, Dec 2005)|Moderately magnetic, dark grey, medium grained, strongly foliated biotite granodiorite with abundant elongate mafic inclusions; forms dyke like bodies|acid intrusive rock|||Y||17-JAN-23
Irwin Creek Breccia|8787|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Mesozoic|||||Mesozoic||||||||No|36220||||||Age and lith desc from GSNSW seamless geology 2023.|Aphanitic basalt capped by breccia.||||N||18-AUG-23
Isaacs Formation|8795|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|43432|||||||||||N||17-JAN-23
Isabella Granite|26634|Isabella Granodiorite|8797|||Yes|Formation, beds|Formal|Variation of published name|Described|||Isabella Suite|31592|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Bathurst 1:250 000 sheet area.|Coarse-grained, equigranular to seriate leucogranite|acid intrusive rock|||Y||17-JAN-23
Isabella Suite|31592|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Pennsylvanian|||||Pennsylvanian||||||||No|42726|||||||||||Y||17-JAN-23
Isismede Ignimbrite Member|70490|||||Yes|Member, phase|Formal|Resvd name published|Defined|Merlewood Formation|26028|||Mississippian||||intrusion|Upper Devonian||||||||No|62095|62095|||||Reserved as Isismede.  Age:ca352Ma.  In the Werrie block/Tamworth Belt.|Pale-red, partly reworked, unwelded ignimbrite.|acid volcanic rock||forearc|N||17-JAN-23
Isismurra Formation|8801|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Visean|342.1|3.2|isotopic, U/Pb-Pb/Pb ion probe|deposition|Visean||||||2250||No|43407|44244|||||Parts now mapped as Merlewood Formation.|Pink, purple or brown, thickly bedded or crossbedded pebbly lithic sandstone, conglomerate, minor purple or buff siltstone and shale, and dacitic ignimbrites|siliciclastic sedimentary rock|acid volcanic rock|forearc|N||17-JAN-23
Island Bend Monzogranite|77028|Island Bend Adamellite|32247|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Published in GSNSW seamless geology.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|29-SEP-23
Island Bend Suite|31591|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Ivanhoe Sandstone Member|8807|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Illawarra Coal Measures|27802|||||||deposition|||||||||No|39232||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Iventure Ignimbrite Member|8810|||||Yes|Member, phase|Formal|Resvd name published|Described|Currabubula Formation|5055|||Pennsylvanian||||eruption|Serpukhovian||||||||No|41800||||||In the Werrie Block/Tamworth Belt. NOTE that it is given (Refid 65902) as a Member of two Formations: the Currabubula Formation as well as the Willuri Formation; it would have been preferable to raise it to Formation status.|Rhyolitic ignimbrite, quartz and feldspar, strongly welded, coarse-grained with coarse-grained shards, abundant lithophysae.|acid volcanic rock|||N||02-JUN-23
Ivor Leucogranite|29576|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Famennian||||intrusion|Frasnian||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. Lithology description from GSNSW seamless geology 2023.|Leucocratic, pale pink, foliated, fine-to medium-grained granite with minor biotite (3%) and accessory muscovite; subequigranular to porphyritic with phenocrysts of quartz and K-feldspar.|acid intrusive rock|||Y||28-SEP-23
Jackalass Slate|23664|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Silurian|||||Late Silurian|||||||NSW|No|37529|42313|H.Basden|06-FEB-81|||See also Bumbolee Formation. Hosts (previously thought to be intruded by) an altered tonalite aged 501.2 +/- 2.6 Ma (ie Cambrian); now thought that both were incorporated in a Middle-Late  Silurian melange.|Volcaniclastic slate and siltstone; minor sandstone; rare marble; chert, jasper; polymictic conglomerate.|metasedimentary siliciclastic rock|medium-coarse grained siliciclastic rock||N||07-SEP-23
Jackson Granite|8829|Jackson granite|8830|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|39800|45147|||||Age given as Silurian on Lachlan Fold Belt granites map (1991). Formerly the only unit in the Jackson Suite. Incorporates Black Mountain Granite (see Owen & Wyborn (1979) BMR Bull 204.|Granite, aplite, monzogranite|acid intrusive rock|||Y||17-JAN-23
Jacqua Creek Siltstone Member|70238|||||Yes|Member, phase|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Simpson, C. (GSNSW)|30-MAR-06|||To be included in the Tangerang Formation.||siliciclastic sedimentary rock|||N||17-JAN-23
Jagungal Volcanics|8837|Jagungal volcanics|8838|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Middle Ordovician||||eruption|Middle Ordovician||||||||No|36512||||||Used in GSNSW seamless geology dataset 2021.|Metabasalt, emplaced as pillow lavas.||||N||21-JUL-23
Jamberoo Sandstone Member|8843|Jamberoo Sandstone|27804|||Yes|Member, phase|Formal|Other new published name|Described|Broughton Formation|2659|||Late Permian||||deposition|Late Permian||||||||No|29900||||||Also supersedes Jamberoo Tuffs. Within the Shoalhaven Group.|Red and green, volcaniclastic sandstones, with interbedded conglomerates, common marine fossils, Harvey paleosols in the upper part.|siliciclastic sedimentary rock|||N||17-JAN-23
Jamon Granite|36474|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|23550||||||||acid intrusive rock|||Y||17-JAN-23
Janina Monzogranite|82504|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Pridoli|||inferred||Pridoli|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Medium-grained biotite quartz monogranite (S-type). Low magnetic intensity. Common sericite alteration of plagioclase feldspar. Biotite altered to chlorite and has apatite and zircon inclusions.|acid intrusive rock|||Y|S-type|17-JAN-23
Jasdec Park Sandstone Member|34022|Jasdec Park|22019|||Yes|Member, phase|Informal|Resvd name published|Briefly described|Branxton Formation|2498|||Guadalupian||||deposition|Guadalupian||||||24||No|22601||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Jaunter Tuff|8889|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|40622|||||||||||N||17-JAN-23
Jawbone Creek Granodiorite Suite|76043|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Lower Devonian|||inferred|intrusion|Late Silurian|||inferred|||||No|66934||||||Suite of  informal units mostly based on geophysics in Hay and Deniliquin 1:250k map sheet areas. See also Jawbone Creek granodiorite suite. Wanganella granodiorite intersected in Bundy No.1 drillhole. Most constituent granodiorites have associated Bouger gravity lows. Magnetic signatures suggest suite is I-type. Used in GSNSW seamless geology dataset 2021.|Biotite granodiorite, interpreted as an I-type granite. Granodiorite interpreted from geophysics.|acid intrusive rock|||Y|I-type|17-JAN-23
Jawbone Creek granodiorite|80457|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Jawbone Creek granodiorite suite|80462|Late Silurian|||inferred, geological correlation||Late Silurian|||inferred, geological correlation|||||No|70718||||||Subsurface, Deniliquin 1:250 000 sheet area. Magnetic signature suggests may be I-type. Not used in GSNSW seamless geology dataset 2021.|granodiorite infered.|acid intrusive rock|||Y|I-type|17-JAN-23
Jeffreys Flat Formation|73551|Jeffreys Flat beds|22022|||Yes|Formation, beds|Formal|Variation of published name|Defined|Warratta Group|73409|||Ordovician||||deposition|Cambrian|510.4|3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|66921|66623|Gilmore, P. (GNSW), Greenfield, J. (GNSW)|25-JUN-07|||Maximum age: c. 510.4 +/- 3 Ma (Greenfield 2010b).  Age constrained by rounded boulders of deformed felsic tuff in a diamictite unit. Replaces the Jeffreys Flat beds on new Koonenberry 1:500 000 map sheet. (DP 25-6-07). RefID 66921. See also misspellings Jefferys Flat and Jeffereys Flat.|Variably cleaved phyllite and slate; originally siltstone with minor sandstone beds, local  minor limestone and conglomerate; local quartzo-feldspathic sandstone, impure limestone, slate with diagenetic pyrite, diamictite conglomerate.|metasedimentary siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Jeffries Formation|39362|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Ordovician||||deposition|Ordovician||||||||No|24123|||||||||||N||17-JAN-23
Jemidee Microgranodiorite|28225|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|37986|37986||||||Fine-grained, pale-grey to green, holocrystalline porphyritic microgranodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Jenners Monzogranite|82506|||||Yes|Formation, beds|Formal|Other new published name|Described|||Jenners Suite|82505|Middle Triassic|||inferred|magmatic crystallisation|Middle Triassic|241.9|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pale pink, off-white to buff, or pale brown to brown, porphyritic coarse- to fine-grained (groundmass), biotite-(hornblende) K-feldspar-rich monzogranite to syenogranite; locally flow-aligned. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Jenners Suite|82505|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Stanthorpe Supersuite|73988|Middle Triassic|||||Lower Triassic||||||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranites.|acid intrusive rock|||Y|I-type|17-JAN-23
Jenny Lind Tonalite|77277|Jenny Lind Granite|25087|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Clarence River Supersuite|36112|Lopingian|255.3|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|255.3|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||Blevin, P. (GSNSW)|05-MAY-11|||Used in GSNSW seamless geology dataset 2021, 2323 and 2017 publication. Seamless data gives late Permian magmatic crystallisation age but also says the unit is Early Triassic?|Light grey, medium-grained, equigranular hornblende-biotite-pyroxene quartz diorite, quartz monzodiorite, tonalite and granodiorite. Ferromagnesian phases give the rock a speckled appearance|intermediate intrusive rock|acid intrusive rock||Y|I-type|16-OCT-23
Jenolan Caves Limestone|8912|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Mumbil Group|13411|||Pridoli||||deposition|Pridoli||||||168||No|30109||||||Previously known as Caves Limestone.|Limestone, shales.|carbonate sedimentary rock|||N||17-JAN-23
Jeralong Coal Member|77369|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous  (steaming) coal, thickness typically 3.0m in Boggabri region, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Jerangle Metamorphic Complex|33682|Jerangle Igneous Complex|8918|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Lower Ordovician|||||Late Cambrian||||||||No|22815|22815|||||See also Jerangle metamorphic complex.|Metasediments, biotite schist|metasedimentary siliciclastic rock|||N||17-JAN-23
Jeremadra Granodiorite|26638|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Moruya Suite|12371|Emsian||||intrusion|Pragian||||||||No|35248||||||See also the informal Jeremadra Granite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Jeremy Formation|74243|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock|||inferred, geological correlation|deposition|Darriwilian|||inferred, geological correlation|||1000|NSW|No|64238||Thomas, O. (GSNSW)|05-APR-08|||For use on GOULBURN 1:250K map sheet and Explanatory Notes; TARALGA  1:100K geological map. prov. map products already released - Explan.Notes expected 2009. Southern extension (in Taralga sheet area) of contentious 'Triangle Formation' rocks in Oberon sheet area.|Grey/khaki laminated to very thinly-bedded chloritic siltstone+mudstone with thin fine-gr. sandstone beds, schistose massive to diffusely bedded med.gr. poorly sorted chloritic feldspathic sst + minor poorly-sorted (bimodal) to well-sorted qtz-rich sst.|siliciclastic sedimentary rock|||N||17-JAN-23
Jerilderie Formation|8926|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Triassic||||deposition|Middle Triassic|242|||||220|NSW|Yes|35498|35498|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Hawke, J.|20-FEB-79||Conglomerate, sandstone, mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Jerrabattgulla Creek Basalt|83470|Jerrabuttgulla Creek basalts|75048|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Burdigalian|||inferred||Burdigalian|19.1|.4|isotopic, K/Ar|||||No|73581||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Olivine nephlinite through to quartz tholeiitic basalt. Olivine phyric with abundant Ti-augite and opaque minerals. Three distinct magma pulses are observed evolving from alkaline to transitional and back to alkaline compositions.|foid-bearing volcanic rock|basic volcanic rock||N||29-MAR-23
Jerrabuttgulla Creek basalts|75048|||||Yes|Formation, beds|Informal|Other new published name|Fully described|||||Miocene||||eruption|Miocene||||||||No|64827||||||Informal compound name for a small intraplate basaltic lava field in the upper Shoalhaven River catchment.  Forms multiple lobes east of the Shoalhaven Fault scarp, the largest outcrop, of at least 3 flows, being 90m thick.||basic volcanic rock|||N||17-JAN-23
Jerrara Formation|40919|Jerrara Beds|8928|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Llandovery|||biozone|deposition|Llandovery|||biozone||300||NSW|No|50234|||||||Grey, thinly bedded massive to laminated shale with minor graptolitic black shale horizons. Also contains ironstone and limestone subunits.|fine grained siliciclastic rock|||N||06-SEP-23
Jerrawa beds|8937|Jerrawa Beds|25088|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Upper Ordovician|||||Upper Ordovician||||||||No|42560|||||||||||N||17-JAN-23
Jerricho Limestone|8938|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|34692||||||||carbonate sedimentary rock|||N||17-JAN-23
Jerrys Plains Subgroup|26639|||||Yes|Subgroup|Formal|Variation of published name|Defined|Wittingham Coal Measures|20334|||Late Permian|||||Late Permian||||||800||No|39346|44244||||||Numerous coal seams; claystone, tuff, siltstone, sandstone, conglomerate.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Jerula Limestone Member|34631|Jerula Formation|23666|||Yes|Member, phase|Formal|Other new published name|Described|Gleninga Formation|7420|||Pragian||||deposition|Pragian||||||||No|22831|||||||Shallow marine limestone.|carbonate sedimentary rock|||N||17-JAN-23
Jesse Limestone Member|31720|Jesse Limestone|25089|||Yes|Member, phase|Formal|Variation of published name|Described|Limekilns Formation|25167|||Emsian|||biozone|deposition|Pragian||||||||No|43641||||||Formerly Formation. Reduced in rank for use in the Bathurst 1:250 000 sheet area. Includes Emsian vertebrate fossil fauna (see Jesse Limestone)|Fossiliferous limestone|carbonate sedimentary rock|||N||17-JAN-23
Jews Creek Volcanics|8950|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Goonigal Group|24297|||Ludlow||||eruption|Ludlow||||||215||No|43476|23170|||||Intruded by Gumble Granite.|Pyroxene andesites, green and grey cherts, vitric tuff.|intermediate volcanic rock|||N||17-JAN-23
Jibbinbar Granite|74030|||||Yes|Formation, beds|Formal|Other new published name|Described|||Mount You You Suite|73979|Permian||||intrusion|Permian|298.1|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|63732||||||Intrudes Texas beds. In Geology of Queensland 2013, p456,457.|White to pale brown, pale grey, or brown to reddish brown, fine- to medium-grained, mainly even-grained (allanite-titanite-)biotite syenogranite; commonly altered.|acid intrusive rock|||Y|I-type|17-JAN-23
Jibbinbar Leucosyenogranite|82508|Jibbinbar Granite|74030|||Yes|Formation, beds|Formal|Variation of published name|Described|||Mount You You Suite|73979|Asselian|||||Gzhelian|298.1|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Does this unit occur in Qld? Is GSQ happy with name change?|White to pale brown, pale grey, or brown to reddish brown; fine- to medium-grained, typically even-grained but locally porphyritic, biotite syenogranite; commonly altered. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Jillamatong Granodiorite|29245|Jillamatong Granodiorite|29245|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Silurian|434.6|4.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33780|41905|||||See also RefID 67060 p505.|Cordierite biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y|S-type|17-JAN-23
Jilleon Formation|23668|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Craven Subgroup|24888|||Late Permian||||deposition|Late Permian||||||280||No|40872||M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Upward coarsening sandstone; subordinate siltstone to medium-grained sandstone; thin coal seams, sideritic bands.||||N||02-SEP-23
Jillicambra Monzogranite|76983|Jillicambra Adamellite|22034|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Published in GSNSW seamless geology.|Coarse- to fine-grained, reddish to leucocratic, sporadically porphyritic monzogranite to granite. Commonly aplitic in appearance, massive, non-foliated, inclusion-free.|acid intrusive rock|||Y|I-type|29-SEP-23
Jimberoo Formation|74201|Jimberoo Member|26641|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||1268||No|61964||||||Previously known as "Stitts Member" of "Mountain Creek Formation" the latter later renamed as "Womboyne Conglomerate".  Stitts member was later replaced by "Jimberoo Member". Now upgraded to formation status in Cocoparra Group.|Thin to medium bedded, coarse- to medium-grained red-brown, red and white sandstone, regularly interbedded with red siltstone and very fine-grained red to beige sandstone.|siliciclastic sedimentary rock|||N||11-SEP-23
Jincumbilly Monzogranite|76954|Jincumbilly Adamellite|8969|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ingebyrah Suite|8689|Late Silurian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Grey, fine-grained, cordierite-biotite felsic monzogranite|acid intrusive rock|||Y|S-type|30-SEP-23
Jindabyne Suite|8971|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Lower Devonian|||||Late Silurian||||||||No|45147||||||Dating of  two plutons put age at least in 416 -424 Ma range.|I-type granites. Comprises nine plutons of tonalite with minor granodiorite and quartz diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Jindabyne Tonalite|8972|Jindabyne tonalite|8973|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|424.1|4.2|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33780|35109|||||Formerly named Jindabyne Granite. See also RefID 67060 p505.|Tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Jindalee Group|27440|Jindalee Beds|8976|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Late Silurian|||inferred, intrusive relationship|metamorphism|Lower Ordovician|||inferred, biostratigraphic correlation|deposition||||No|37529||||||Some units previously mapped as Jindalee Group now Yandilla Volcanics [Cootamundra explan notes 1995]. Minimum age for Bullawyarra Schist constrained by age of intrusive Blacks Flat Diorite (435.8+/-2.1 Ma) (Bodorkos et al, 2013). Fragmented ophiolite sequence of now-serpentinised harzburgites and other ultramafic rocks, gabbros, pillow basalts and bedded and inter-pillow cherts, and jasper. Cherts contain Ordovician conodonts.|Metamorphosed mafic and ultramafic volcanics and intrusives; metabasalt, serpentinite, metagabbro, metadolerite, quartzite, chert, quartz-magnetite rocks, BIF, quartz-mica schist, slate, phyllite, harzburgite, pyroxenite, talc-carbonate rocks, chromitite.|metamorphosed basic igneous rock|metamorphosed ultramafic rock|oceanic backarc|N||17-JAN-23
Jinden Monzogranite|76997|Jinden Adamellite|24320|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian|402|6|isotopic, Rb/Sr|intrusion|Lower Devonian|406|6|isotopic, K/Ar|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Hornblende-biotite monzogranite, biotite monzogranite, leucogranite, aplite.|acid intrusive rock|||Y|I-type|26-SEP-23
Jinden Suite|31489|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Jindera Granite|8980|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Jindera Suite|31594|Lower Devonian|403.4|2.5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Silurian|||inferred|||||No|44340||||||Part split out in 2020 as Ryan Granite.|I-type, felsic, fractionated granite|acid intrusive rock|||Y||21-AUG-23
Jindera Suite|31594|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Late Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Jingera Rock Syenite Complex|8987|Jingera Alkaline Complex|8985|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Upper Jurassic||||intrusion|Middle Jurassic||||||||No|35525|22815|||||K/Ar Age: 168.2+/-2.5 Ma.|Syenite, nepheline syenite, monzonite, gabbro|intermediate intrusive rock|||Y||17-JAN-23
Jingerangle Formation|29577|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Cabonne Group|21409|||Hirnantian||||deposition|Katian||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra, Forbes 1:250 000 sheet area|Interbedded siltstone and mudstone, minor silicified sandstone, claystone|siliciclastic sedimentary rock|||N||17-JAN-23
Jinglemoney Conglomerate|78646|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Bindook Group|69879|||Lochkovian||||deposition|Lochkovian||||||||No|69159|||||||Grey to brown, medium-bedded, poorly-sorted, peble to cobble conglomerate, interbedded with grey, medium-bedded, fine- to medium-grained sandstone. Clasts include quartz-rich sandstone and siltstone, mudstone, chert, quartz, rhyolitic ignimbrite.|siliciclastic sedimentary rock|||N||17-JAN-23
Jingo Creek Monzogranite|76984|Jingo Creek Adamellite|22036|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Jingo Creek Suite|31530|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Biotite monzogranite|acid intrusive rock|||Y|I-type|29-SEP-23
Jingo Creek Suite|31530|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Jo Doth Tuff Member|40791|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Leloma Formation|23722|||Late Permian||||eruption|Late Permian||||||15||No|50147||||||See also Jo Doth Tuff.|Thick white claystone and minor sandstone sequence, representing several layers of airfall and water-reworked dacitic tuffs.||||N||02-SEP-23
Joaramin Ignimbrite|34262|||||Yes|Formation, beds|Formal|Other new published name|Defined|Bindook Group|69879|||Pragian||||eruption|Pragian||||||140||No|22678|||||||Pale pink to green-grey, densely welded, crystal-rich, rhyolitic ignimbrite containing whole + fractured phenocrysts of plagioclase, quartz, orthoclase, minor biotite + trace hornblende set in fine-gr. recrystallised qtz-feldspathic matrix.|acid volcanic rock|||N||17-JAN-23
Johnniefelds granodiorite|76757|||||Yes|Formation, beds|Informal|Resvd name published|Described|||Arthursleigh Suite|31547|Lochkovian|||inferred, intrusive relationship|intrusion|Lower Devonian|||inferred|||||No|70661||Trigg. S. (GSNSW), after Prybl (1986)|16-FEB-12|||Jonniefelds granite was mapped and named by Prybl (1986) in her unpublished honours thesis. GSNSW has done no work on it, but consider we can put it on the on Moss Vale 1:100 000 geological map as an informal unit. The name comes from the Johnniefelds property (homestead at GR 774900 6159850, Zone 55, Goulburn) (Note: The property name is misspelt as 'Johnniefields' on the Goulburn 1:100 000 topographic sheet SeriesR651, Sheet 8828 edition 2-AAS).|Bimodal, holocrystalline, medium to coarse-grained biotite-hornblende granodiorite. Characterised by a contact metamorphic microstructure and a strong mineral lineation locally. Fine grained igneous enclaves common|acid intrusive rock|||Y||17-JAN-23
Johns Hill Ignimbrite Member|82502|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Newtown Formation|26078|||Visean|||inferred||Visean|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Ignimbrite.|acid volcanic rock|||N||17-JAN-23
Johnsons Creek Conglomerate|9012|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Serpukhovian||||deposition|Serpukhovian||||||830||No|32671|44244||||||Coarse, massive, pebble to cobble conglomerate|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Johnsons Creek Conglomerate, McInnes Formation|42295|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Massive conglomerate with clasts dominantly of acid volcanics; lithic sandstone, diamictite. Thickly bedded, coarse lithic sandstone with interbeds of conglomerate, siltstone, carbonaceous shale and coal; minor volcanic breccia and rhyolite flows|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Jolly Nose Conglomerate|26269|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Camden Haven Group|28197|||Lower Triassic|||inferred, overlying unit|deposition|Late Permian|||||2|140|NSW|No|36826|66090|E.C.Leitch|04-DEC-79|||To be used in Port Macquarie district. Previously shown as part of the Camden Haven Group, but excluded, without explanation, in 2010. More recent GSNSW seamless geology 2023 includes this unit in Camden Haven Group again.|Purple-red polymictic conglomerate. Clasts lithology dominated by ~80% lithic and quartzofeldspathic sandstone; other portion includes granitoids, quartzite and acid volcanic rocks.|medium-coarse grained siliciclastic rock|||N||27-AUG-23
Jones Creek Diorite|9018|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Jindalee Group|27440|||Cambrian||||intrusion|Cambrian||||||||No|42313||||||Cootamundra - Tumut area. Used in GSNSW seamless geology dataset 2021.|Massive diorite with flow alignment of phenocrysts, nodular diorite with round clusters of phenocrysts from 5 cm to 10 cm.||||Y||21-JUL-23
Jooriland Group|9026|Upper Marine Series|18921|||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned|||||Permian|||||Permian||||||||No|43477||||||South Western Coalfield. Superseded? Equivalent to Shoalhaven Group?|||||N||17-JAN-23
Joppa Siltstone Member|69891|Joppa Formation|36334|||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock|||||||NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  This will redefine Joppa Formation of the previous GOULBURN 1:100 000 sheet. asdf  Part of the Mount Fairy Group.|Fawn, cream, buff and khaki laminated to medium bedded siltstone, mudstone and fine grained quartzose sandstone with starved ripples.|siliciclastic sedimentary rock|||N||17-JAN-23
Jounama Creek Limestone|9034|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40498||||||||carbonate sedimentary rock|||N||17-JAN-23
Juhle Mountain Granodiorite|82509|||||Yes|Formation, beds|Formal|Other new published name|Described|||The Brothers Suite|77628|Upper Triassic|||inferred||Upper Triassic|212||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Amphibole-biotite granodiorite to monzogranite with abundant granophyric variants. A-type.|acid intrusive rock|||Y|A-type|24-AUG-23
Julong Granite|33794|Wheeo Granite|19864|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Pridoli||||intrusion|Ludlow||||||||No|50233|68592|Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wyangala Batholith. Shown as of Burrawinda Suite on Goulburn Provisional (2008). Of Hovells Suite in GSNSW state listing 2012.|Massive to strongly foliated porphyritic muscovite-biotite granite. High K radioelement response.|acid intrusive rock|||Y||17-JAN-23
Jumping Creek Granodiorite|22044|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||Ilsley D., Lewis P.|14-FEB-80|||Used in a thesis and the Cooma 100K map.||acid intrusive rock|||Y||17-JAN-23
Junawarra Volcanics|29578|||||Yes|Formation, beds|Formal|Resvd name published|Described|Cowal Igneous Complex|37285|||Wenlock|431|1.8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Wenlock||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area|Andesite, andesitic agglomerate, latite, sedimentary rocks, minor dacite|intermediate volcanic rock|||N||17-JAN-23
Junction Reefs Monzodiorite|9077|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Upper Ordovician|428.6|7.6|isotopic, U/Pb|intrusion|Upper Ordovician|449|10|isotopic, K/Ar|||||No|42802||||||Bathurst 1:250 000 sheet area. Intrudes the Weemalla Formation. Comprises of a small circular stock 300m in diameter.|Monzodiorite.|intermediate intrusive rock|||Y||17-JAN-23
Junee Reefs Granite|22048|Wantabadgery Granite|19423|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Koetong Supersuite|9704|Late Silurian||||intrusion|Late Silurian|431.2|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Age assumed to be Late Silurian. Formerly included in the Wantabadgery Granite &  "Ardlethan Granite" before that.|Grey, equigranular, porphyritic, quartz-feldspar-biotite-muscovite granite; tourmaline-bearing, locally pegmatitic, xenolith-rich.|acid intrusive rock|||Y||17-JAN-23
Jurambula sand|9091|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||||||N||17-JAN-23
Jurassic intrusions 78229|78229|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic|||||Jurassic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Analcimite dykes & plugs|foid-bearing volcanic rock|||Y||17-JAN-23
Jurassic mafic volcanics 76558|76558|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Middle Jurassic|172|||eruption|Lower Jurassic||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly basaltic rocks; may include minor ultramafic volcanics|basic volcanic rock|||N||17-JAN-23
Jurassic sedimentary rocks 76561|76561|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Jurassic|141|||deposition|Lower Jurassic|205|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Jurassic to Cretaceous sedimentary rocks 76560|76560|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Cretaceous|97|||deposition|Middle Jurassic|175|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Kabadah Formation|29570|Kabadah Beds|9095|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Llandovery||||deposition|Upper Ordovician||||||800||No|43494|23170|||||Replaces Kabadah Beds in the Bathurst 1:250 000 sheet area. Intruded by Gumble Granite. Incl: the former Kabadah Beds, Loombah, Bournewood and Yullundry Formations as first mapped by Maggs (1963). Also incl:  Buckinbah Volcanics and Myrangle Fm.|Mafic volcaniclastic sandstone, siltstone, shale, chert; minor limestone, conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kadoona Dacite Member|24324|||||Yes|Member, phase|Formal|Other new published name|Defined|Long Flat Volcanics|10619|||Lochkovian||||eruption|Lochkovian|413.4|2.6|||||NSW|Yes|39028|40276|D.Wyborn|30-NOV-79|Russell, T.|14-SEP-82|Used on the Araluen 1:100 000 sheet. Previously considered Late Silurian age. See also Kadoona Dacite. Defined.|Grey to green, medium-grained, moderately fragmental and densely welded, crystal-rich dacitic ignimbrite. Variable lithic clast content.|acid volcanic rock|||N|I-type|17-JAN-23
Kadungle Volcanics|24325|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Trundle Group|29079|||Lower Devonian||||eruption|Lower Devonian||||||2000|NSW|Yes|36066|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|Narromine 1:250 000 Geological sheet|Rhyolite lavas and ignimbrites, minor shale and arenite; contains brachiopods and corals.||||N||17-JAN-23
Kahibah Formation|25098|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|43447||||||Of Adamstown Subgroup, Newcastle Coal Measures. This name dropped~1999. Included Hillsborough Tuff Member, Whitebridge Conglomerate Member. Name revived ~2015.  Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate, sandstone, shale and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||02-SEP-23
Kain Porphyry Member|77047|Kain Porphyry|25691|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Long Flat Volcanics|10619|||Pragian||||eruption|Lochkovian|414.1|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|66300||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW. See previous name for definition. Interpreted as a subvolcanic unit intruding the eruptive components of Long Flat Volcanics, and has the same age as them.|Green to grey, medium to coarse grained, plagioclase-phyric coherent dacite.|acid volcanic rock|||U||17-JAN-23
Kaiwilta Member|78580|||||Yes|Member, phase|Formal|Resvd name published|Defined|Narrama Formation|73364|||Floian||||deposition|Floian||||||||No|67322|||||||Medium- to coarse-grained, lithic, quartzose sandstone and minor quartzose siltstone, conodont-bearing chert, and intercalated amygdaloidal basalt|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Kalimna Limestone Member|24328|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden. 9m thick at type section.|Includes thin-bedded terrigenous-rich limestones.|carbonate sedimentary rock|||N||17-JAN-23
Kalkite Monzogranite|77018|Kalkite Adamellite|28222|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Lower Devonian|410|5.4|isotopic, Rb/Sr|intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards.|Coarse-grained, moderately mafic, sporadically porphyritic biotite monzogranite to granodiorite; biotite as aggregates of small grains (with interleaved muscovite) or large crystals with inclusions of zircon and apatite|acid intrusive rock|||Y|S-type|29-SEP-23
Kallinga Formation|25100|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40774|||||||||||N||17-JAN-23
Kaloe Tonalite|77043|Kaloe Granodiorite|22059|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kaloe Suite|73894|Sakmarian|291.2|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Sakmarian|293.1|1.8|isotopic, Ar/Ar|||||No|69639||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards.|Medium-grained, equigranular, hornblende-rich tonalite with a platy deformation foliation; cut by abundant mafic dykes in places.|acid intrusive rock|||Y|I-type|27-SEP-23
Kameruka Granodiorite|9184|Kameruka granodiorite|9189|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Kameruka Suite|9185|Lower Devonian||||intrusion|Lower Devonian||||||||No|40646||||||See also the informal Kameruka Granite. Age: 381+/-7 Ma Rb/Sr (Fergusson et. al, 1979), ~420 Ma [SHRIMP?] zircon, but poorly constrained (I Williams pers. comm. in 1993 paper)|Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Kameruka Suite|9185|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian||||intrusion|Late Silurian||||||||No|42827|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Kameruka Supersuite|9187|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42827|||||||Granite, Granodiorite|acid intrusive rock|||Y||23-AUG-23
Kanangra Granite|9203|Tuglow Granite|26959|||Yes|Formation, beds|Formal|Other new published name|Defined|||Tuglow Suite|31649|Carboniferous||||intrusion|Carboniferous||||||||No|34481||||||Bathurst 1:250 000 sheet. Name replaces Tuglow Granite, however unit remains in the Tuglow Suite. Intrudes the Adaminaby Group.|Pale pink, medium-grained hornblende granite, monzogranite.|acid intrusive rock|||Y||17-JAN-23
Kandie Tank Limestone|9205|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Kayrunnera Group|9352|||Tremadocian||||deposition|Late Cambrian||||||||No|32677|66623||||||Shallow-marine shale, massive microcrystalline grey limestone with conodonts, quartzite.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Kandos Group|29513|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Eifelian||||deposition|Lochkovian||||||4000|NSW|No|43188|23170|Wyborn D. for Lachlan NGMA project|21-JUL-95|||Dubbo and Bathurst 1:250 000 sheet area. Formerly referred to as Kandos Series.|Quartz, lithic, feldspathic and volcanic sandstone, shale, pebbly sandstone and conglomerate; dacitic to rhyolitic ignimbrite, minor lava and tuff; limestone, dolomite, calcarenite; rare carbonaceous shale|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kangaloolah Volcanics|9206|||||Yes|Formation, beds|Formal|Other new published name|Defined|Campbells Group|3427|||Pridoli|423.7|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|||inferred|||2000|NSW|No|29993||||||BATHURST 1:250 000 sheet area. Parts of the unit have previously been mapped as Thompsons Volcanics. Can be divided into three unnamed subunits. Included in both Mumbil and Campbells Groups by varying authors.|Rhyolitic-dacitic, crystal rich, quartzo-feldspathic and feldspathic volcaniclastic sandstone. Minor laminated fine-grained volcaniclastic sandstone, siltstone, breccia, conglomerate and limestone.|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
Kangaloon Sandstone|9207|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Clifton Subgroup|4163|||Middle Triassic||||deposition|Late Permian||||||||No|29901||||||Lith desc from GSNSW seamless geology 2023.|Conglomerate, coarse- to medium-grained quartz-lithic sandstone (fines up sequence), minor intercalated siltstone, claystone and carbonaceous partings up sequence.|siliciclastic sedimentary rock|||N||02-SEP-23
Kangaroo Creek Sandstone|9211|Kangaroo Creek Series""|9212|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Cretaceous||||deposition|Oxfordian||||||500|QLD|No|43384||||||Warwick 1:250 000 sheet area, QLD & NSW. Also referred to as Kangaroo Creek Formation. Type section in Bungawalbin Creek 2.|Quartz arenite, minor quartz and lithic conglomerate; thick to very thin bedded, high-angle crossbedding.|medium-coarse grained siliciclastic rock||oceanic backarc|N||31-JUL-23
Kangaroo Creek Sandstone Member|82513|Kangaroo Creek Sandstone|9211|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Orara Formation|82372|||Lower Cretaceous|||inferred||Middle Jurassic|||inferred|||||No|70820||||||Used in GSNSW seamless geology dataset 2021- 2023. Intended to replace the Kangaroo Creek Sandstone?|Massive, quartzose, medium- to coarse-grained fluvial channel sandstone. Some siltstone and carbonaceous mudstone units (<50 cm thick) are preserved within the sands along with sand beds rich in garnet.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||20-AUG-23
Kangaroo Mountain Basanite|30652|Kangaroo Basanite|25103|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Jurassic||||eruption|Jurassic|||||||NSW|No|43346|43346|||||Defined 1952.|Alkaline olivine basalt and basanite|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Kankool Ignimbrite Member|70450|Kankool|41418|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||intrusion|Pennsylvanian|308.9|2.8|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|62095|62095|||||Age: ~310Ma. Replaces Back Creek Tuff Member.|Beige unwelded ignimbrite with fine to medium phenocrysts of plagioclase, quartz biotite and opaque minerals.|acid volcanic rock|||N||17-JAN-23
Kanmantoo Group|28634|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|Moralana Supergroup|26314|||Early Cambrian|514|3|||Early Cambrian|522|2|inferred, underlying unit|||9000||No|65624||||||In the Adelaide Fold Belt., Kanmantoo Trough.  Minimum age from earliest Delamerian Orogeny magmatism. Part of the Moralana Supergroup in South Australia. May extend into NSW? Probably not Tas.|Marine metasandstone, phyllite, schist, gneiss, minor calcsilicate and marble. Sandstone; siltstone, occasionally sulphidic; metamorphosed. Also basalt/dolerite undercover.|metasedimentary siliciclastic rock|metasedimentary carbonate rock||N||08-SEP-23
Kantappa Quartzite Member|9253|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Mulcatcha Formation|28825|||Neoproterozoic||||deposition|Neoproterozoic||||||||No|30261|||||||Thin-bedded pebble- and cobble-bearing orthoquartzite.|siliciclastic sedimentary rock|||N||17-JAN-23
Kara Formation|73550|Kara beds|9266|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Grey Range Group|73424|||Ediacaran|||inferred|deposition|Ediacaran|585.5|3.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|66917|66623|Gilmore, P. (GNSW), Greenfield, J. (GNSW)|25-JUN-07|||Replaces the Kara beds on new Koonenberry 1:500 000 map sheet. Age inferred from max. age of interbedded Mount Arrowsmith Volcanics.|Variably cleaved phyllite and minor quartzite; interbedded sandstone and siltstone with minor dolomitic and calcareous beds; ripples, bioturbation, cross-bedding; massive yellow, dolomitised limestone with variable lithic component.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Karalinga Formation|23685|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Bungonia Group|34589|||Late Silurian||||deposition|Late Silurian|||||||NSW|No|37986|37986|Hutton, A.C.|16-NOV-77|||Wollongong 1:250 000 map area. Previously of Taralga Group.|Black shale, chert and limestone|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Karanga Moorah Granite|77611|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Permian||||intrusion|Permian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Myall Syncline. Check spelling. Place names database has only Karangamoorah Hsd.|Biotite granite|acid intrusive rock|||N||17-JAN-23
Karawina Formation|23686|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mumbil Group|13411|||Lower Devonian||||deposition|Late Silurian||||||300||No|42712||Stuart-Smith P.|31-MAY-93|||Bathurst 1:250 000 sheet area, DESC in 94/27645.|Composed of metamorphosed feldspathic quartz sandstone, conglomerate and metasiltstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Karikeree Metadolerite|23687|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Permian||||intrusion|Late Permian|||||||NSW|No|40134|40134|E.C.Leitch|19-NOV-79|||To be used in Port Macquarie district.|Massive cleaved metadolerite.|basic intrusive rock|||Y||17-JAN-23
Karingal Rhyolite Member|40130|Karingal Intrusion|39370|||Yes|Member, phase|Formal|Resvd name published|Fully described|Ural Volcanics|18968|||Lochkovian|422|4||eruption|Lochkovian|422|4||||||No|61964||Meakin, S.|19-JAN-04|||Lake Cargelligo sheet area (8131). Originally reserved as Karingal Intrusion by same originator (Meakin 2003). Within the Rast Group.|Grey, speckled, very coarse-grained boulder-forming porphyritic rhyolite; euhedral to rounded feldspar megacrysts; lithic and/or fine-grained porphyritic mafic enclaves.|acid volcanic rock|||N||17-JAN-23
Karingle Trachyte|83968|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Benolong Volcanic Suite|83967|||Lower Jurassic|||||Upper Triassic||||||||No|||Simpson, B. (GSNSW)|28-AUG-23|||Named after the Karingle homestead (add geographic coordinates) which is central to the several outcrops of the formation. Outcrop extends across both the Dubbo 1:100,000 and Wellington 1:100,000 map sheet areas.|Trachyte.||||N||19-SEP-23
Karinya Metamorphics|67879|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Sandon Association|67995|||Mississippian|||inferred|deposition|Upper Devonian|||inferred|||||No|||GSNSW|03-FEB-05|||In use in NSW already but not reference for indexing as yet (DP030205). Used in GSNSW seamless geology dataset 2021. Not related to Karinya Shale, SA.|Lithic wacke, slate, numerous amphibolite and quartzite horizons|medium-coarse grained siliciclastic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Karonstadt Complex|82515|Karonstadt Hybrid suite|74789|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Compositionally and texturally diverse intrusives incorporating layered olivine-clinopyroxene-orthopyroxene gabbros, dolerite, diorite, hybrid granites, and strongly porphyritic biotite-hornblende monzogranite.|basic intrusive rock|acid intrusive rock||Y||19-JUL-23
Karoopa Granite|35615|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Boggy Plain Supersuite|2092|Emsian||||intrusion|Emsian||||||||No|50231||Pogson D.|17-OCT-00|||BOOROWA 1:100 000 sheet area.  Included in the Karoopa Suite for the new GOULBURN 1:250 000 sheet (2008). Intruded by dykes of grey, massive, porphyritic rhyolite. Formerly only unit of Karoopa Suite.|Fine-medium grained, massive, equigranular, leucocratic, biotite granite with rare miarolitic cavities; minor biotite tonalite; microgranitic marginal phases; intruded by massive, porphyritic rhyolite dykes; moderate-high magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Karoora Granodiorite|81801|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Silurian|408|17|inferred||Silurian|408|17|inferred|||||No|||Eastlake, M. (GSNSW)|07-JAN-20|||Barmedman 1:100 000 map sheet area 8329, Cootamundra 1:250k, SI55-11.   The unit intrudes Ordovician metasedimentary rocks of the Adaminaby Group and is inferred to be of mid-Silurian age similar to the neighbouring Wargin Granite. The unit is expected to be incorporated into the Geological Survey of New South Wales Stratigraphic Unit Tables in 2020. Published in GSNSW seamless geology.|Massive, light- to mid-grey, medium-grained, equigranular to (locally) seriate-inequigranular, biotite-granodiorite. Contains uncommon mafic to intermediate microgranitoid enclaves|acid intrusive rock|||Y||30-SEP-23
Karpa Kora Igneous Complex|82521|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian|||inferred||Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Felsic porphyry, vitric tuff, lapilli tuff. Many small magnetic anomalies of low to moderate intensity which form clusters.|acid volcanic rock|||N||17-JAN-23
Karrakurra Formation|9302|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32671|||||||||||N||17-JAN-23
Karralee Ignimbrite Member|70496|Karralee|41835|||Yes|Member, phase|Formal|Variation of published name|Defined|Currabubula Formation|5055|||Pennsylvanian||||intrusion|Pennsylvanian||||||||No|62095|62095|||||Age is probably Westphalian.  In the Werrie block/Tamworth Belt. See also the informal Karralee Member and the misspelt Karrallee Ignimbrite .Member.|Purple to brown, welded to unwelded ignimbrite with rare coarse phenocrysts.  Interbeded with less extensive unnamed rhyodacite flows.|acid volcanic rock|||N||17-JAN-23
Karratta Bore Granite|79971|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Devonian|||inferred||Cambrian|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|04-JUL-17|||To be published in an AJES article on the Southern Thomson. After the Karratta Bore in QLD. Multiphase felsic intrusion. Distinct eliptical magnetic low areas with more highly magnetic margin and internal zones interpreted as a multiphase felsic intrusion. Used in GSNSW seamless geology dataset 2021, 2023, where shown as between Cambrian and Devonian.|Distinct eliptical magnetic low areas with more highly magnetic margin and internal zones interpreted as a multiphase felsic intrusion.|acid intrusive rock|||Y||03-SEP-23
Kars Ultramafic Intrusive Complex|33404|Kars complex|9304|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Fifield Suite|77333|Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|60008||Lachlan Project|22-APR-99|||Used in GSNSW seamless geology dataset 2021, 2023. Previously informally referred to to as "Kars intrusive complex".|Northern zone: Olivine-pyroxenite cut by wehrlite-dunite and olivine pyroxenite, dunite dykes and pods. Southern zone: Monzonite, monzonite dykes enclosing pyroxenite|ultramafic intrusive rock|intermediate intrusive rock||Y||13-JUN-23
Karuah Formation|9305|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||600||No|43432|44244|||||Defined 1991. Rocks  included in Mount Johnstone Formation, along with Italia Road Formation [J.Greenfield 22-JUN-2012]. Name later reinstated. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate and lithic arenite; boulder conglomerate, pebbly sandstone and mudstone; schlieren of heavy minerals.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Katandra Member|9306|||||Yes|Member, phase|Formal|Other new published name|Defined|Shepparton Formation|25474|||Pleistocene||||deposition|Pleistocene|||||||VIC|No|70961|42966||||||||||N||17-JAN-23
Kataway Mudstone|23689|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Tournaisian||||||630|NSW|No|36057|44244|D.T.Crane, J.W.Hunt|10-FEB-76||||Grey to brown mudstone and siltstone containing trace fossils with rare interbeds of lithic sandstone and minor limestone|fine grained siliciclastic rock|||N||17-JAN-23
Katoomba Coal Member|9333|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Farmers Creek Formation|24609|||||||deposition|||||||||No|39232||||||See also Katoomba Coal.||organic rich sedimentary rock|||N||17-JAN-23
Kayrunnera Group|9352|Kayrunnera Beds|9351|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Lower Ordovician|||biozone||Late Cambrian|||biozone||||NSW|No|41587|66623|||||Kayrunnera Beds first used by Brunker et al. (1971) on Koonenberry 1:500 000 sheet. Subsequently defined as a Group by Webby et al. (1988).|Moderately to weakly deformed slate and slaty siltstone;originally shallow marine shale, carbonate, sandstone, conglomerate. Contains trilobites, conodonts and other fossils. Regionally metamorphosed to greenschist facies.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kearsley Lens|9357|||||Yes|Bed|Formal|Unknown or process pending|Briefly described|Greta Coal Member|7799|||Cisuralian|||||Cisuralian||||||||No|34015|||||||||||N||17-JAN-23
Keatings Shale Member|9358|Keating's Shale Member|32664|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Kohinoor Volcanics|27175|||Wenlock||||deposition|Wenlock|||||||NSW|No|48878|48878|||||Defined as Wenlockian age in 1965. Name not used since 1982, but in GSNSW digital listing, 2012.||siliciclastic sedimentary rock|||N||17-JAN-23
Kedumba Granite|9360|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Formal name not intended. Not related to Kedumba Granodiorite, Qld.||acid intrusive rock|||Y||17-JAN-23
Keelindi beds|9364|Keelindi Beds|35072|||Yes|Formation, beds|Informal|Other new published name|Described|||||Valanginian||||deposition|Tithonian||||||200||No|42596|||||||Off-white, fine to coarse grained, poorly to well sorted, quartzose sandstone, pebbly sandstone and conglomerate interbedded with minor shale, siltstone and coal. Cross-bedded, kaolinitic and iron stained. Rare silicified wood, ?worm burrows.|siliciclastic sedimentary rock|||N||25-SEP-23
Keelindi beds, Kumbarilla beds|84120|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|||||Lower Cretaceous|||||Middle Jurassic||||||||No|||||||Merged unit for the 1:1M solid geology mapping across the NSW-QLD border. See individual units for more information.|Sandstone, siltstone, mudstone, conglomerate. Minor shale and coal. Rare silicified wood, ?worm burrows.||||N||17-OCT-23
Keenan mafic-ultramafic|82830|Keenan Igneous Complex|77343|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Forms dykes and annular structures with a NW axis of elongation. Used in GSNSW seamless geology dataset 2023.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||Y||13-JUN-23
Keepit Conglomerate|9376|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Parry Group|14916|||Famennian||||deposition|Famennian||||||510||No|43418|||||||Polymictic pebble to boulder conglomerate, labile lithic and feldspatholithic arenite, subordinate massive and laminated mudstone; tuff; rare local andesite and dacite olistoliths.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Keginni Conglomerate Member|9380|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Bundycoola Formation|23439|||Givetian||||deposition|Givetian||||||200|NSW|No|40913|41126|||||See also Keginni Sandstone Member.|Massive to thickly bedded pebble to cobble polymictic conglomerate.|siliciclastic sedimentary rock|||N||11-SEP-23
Kelle Volcanic Breccia Member|9392|Kelle Agglomerate Member|9391|||Yes|Member, phase|Formal|Variation of published name|Fully described|Majuba Volcanics|27473|||Lochkovian||||eruption|Lochkovian||||||||No|42566|||||||Rhyolitic, coarse lithic-crystal tuff and volcanic breccia.||||N||20-JUL-23
Kellys Creek Leucomonzogranite|73842|Kellys Creek Leucoadamellite|9400|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Tallawudjah Suite|82680|Upper Triassic|||inferred|intrusion|Upper Triassic|221.3|2.2|inferred|||||No|71628||Champion, Blevin and Bultitude|13-NOV-07|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to fine-grained, porphyritic to equigranular biotite-(hornblende) leucomonzogranite.|acid intrusive rock|||Y|I-type|24-AUG-23
Kellys Plain Volcanics|9408|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||eruption|Pridoli||||||300|NSW|No|29456|45147||||||Dacite ignimbrite, rhyodacite ignimbrite, tuff, agglomerate, rhyolite; porphyritic monzogranite|acid volcanic rock|||N|S-type|17-JAN-23
Kellyville Laminite Member|27172|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ashfield Shale|25701|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|35690|35690||||||||||N||17-JAN-23
Kelvin Suite|32180|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bombala Supersuite|77132|Lower Devonian|||||Late Silurian||||||||No|43233||||||Consists of two plutons: Bombala and Gunningrah Tonalites.  Appears to have replaced the Bombala Suite?||acid intrusive rock|||Y||17-JAN-23
Kembla Sandstone|9417|Colemans Creek Sandstone|27744|||Yes|Formation, beds|Formal|Other new published name|Described|Sydney Subgroup|17602|||Late Permian||||deposition|Late Permian||||||||No|34569||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Kempfield Granodiorite|29941|Kempfield Granite|23692|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|22679||Henderson T. Wyborn D.|06-JUN-77|||Originally reserved R.Close 6-JUN-77, as Kempfield Granite. Reserved again for use in Bathurst 1:250 000 sheet area, 1995. Originally included in the Barry Granite. Intrudes the Coombing Formation, Triangle and Campbells Formations.|Recrystallised biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Kempsey beds|9426|Kempsey Beds|9423|||Yes|Formation, beds|Informal|Unknown or process pending|Fully described|||||Cisuralian||||deposition|Pennsylvanian||||||2000||No|38803|||||||Lithic sandstone, mudstone, siltstone, pebbly sandstone, minor conglomerate|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Kengal Formation|81816|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian|||inferred, geological correlation|deposition|Lower Devonian|413.7|2.2||maximum depositional age||||No|73457||Trigg, S. (GSNSW)|23-JAN-20|||Name is derived from 'Kengal' is the aborigianal place name for The Rock, southwest of Wagga Wagga. The nearest town is The Rock. The name and a brief description of the unit is given in a GSNSW report (Geological mapping in parts of the East Riverina Project area in 2018, S.J. Trigg) that is in the final stages of editing and shaould be in the GSNSW DIGS and available in the first half of this year. A more detailed description will be given in a GSNSW 'Quarterly Notes' publication later in the year. Also used in GSNSW seamless geology dataset 2021.|Intercalated polymictic matrix-supported conglomerate, sandstone, pebbly sandstone and some red siltstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||11-SEP-23
Kennedy Range Monzogranite|77021|Kennedy Range Adamellite|29223|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian|||inferred|intrusion|Late Silurian|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Used in GSNSW seamless geology dataset 2021.|Hornblende-biotite monzogranite and granite, aplite, hornfelsed granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Kenross Monzogranite|76955|Kenross Adamellite|9442|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Used in GSNSW seamless geology dataset 2021.|Even-textured, medium- to coarse-grained, grey cordierite-biotite monzogranite; cordierite as large scattered lumps altered to micas or pinite|acid intrusive rock|||Y|S-type|06-SEP-23
Kenset Granite|33800|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Pogson D.|11-NOV-99|||Crookwell 1:100 000 sheet area.||acid intrusive rock|||Y||17-JAN-23
Kensington Formation|25678|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Sakmarian||||deposition|Sakmarian||||||1300||No|41009||R.E.Brown|04-FEB-87||||Conglomerate, siltstone, sandstone, limestone and rare basalt|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Kentucky Quartz Diorite|82522|Kentucky Diorite|26660|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Suite|18973|Lower Triassic|245.3||isotopic, Rb/Sr||Late Permian|265||isotopic, Sm/Nd|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Includes the Kentucky Diorite (Binns et al., 1967) and Kentucky Ponds Diorite (Flood, 1971), both small intrusions. Historically the small intrusions were considered Permo-Triassic, but this current unit is now considered to be Early Triassic.|Medium- to coarse-grained, weakly porphyritic, two-pyroxene-hornblende-biotite-quartz diorite; minor gabbro, quartz gabbro, quartz monzodiorite, and tonalite; locally contains appinitic diorite and felsic pegmatite.|intermediate intrusive rock|||Y|I-type|19-OCT-23
Kenyu Formation|9449|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cabonne Group|21409|||Llandovery|||inferred, overlying unit|deposition|Sandbian|||inferred, biostratigraphic correlation||||NSW|No|43515||||||Listed as part of the Cabonne Group on DUBBO 250k(?) and BOOROWA 100k map sheets; also on GOULBURN 1:250K sheet (2008). No type section determined.|Mudstone, andesite, tuff, conglomerate, tuffaceous sandstone; siltstone, shale, limestone.|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Kerang Sand Member|9458|||||Yes|Member, phase|Formal|Other new published name|Defined|Loxton Sand|10825|||Zanclean||||deposition|Late Miocene||||||30|VIC|No|34757|42966|||||Of Macumber (1991) who divided the Parilla Sand into three sub-units: the Kerang Sand (which name he used interchangeably with Kerang Sand Member), Tragowel Member and Wandella Sandstone. Only differentiated in VIC. Parilla Sand itself is now Loxton Sand.|Medium to coarse-grained marine quartz sand.|siliciclastic sedimentary rock|||N||17-JAN-23
Kergunyah Leucitite|9466|||||Yes|Formation, beds|Formal|Other new published name|Described||||||||||||||||||No|34449||||||Cobar region.|||||N||17-JAN-23
Kerillon Tuff Member|22086|||||Yes|Member, phase|Formal|Other new published name|Defined|Tangerang Formation|27094|||Pragian||||magmatic crystallisation|Lochkovian|412.7|2.2|isotopic, U/Pb-Pb/Pb ion probe|||2000||No|22678||C.Simpson|09-DEC-87||||Rhyolitic accretionary lapilli-bearing non-welded ignimbrite and volcaniclastic rocks overlain by coarse-grained welded, crystal-rich dacitic ignimbrite, and subordinate volcanic breccia, ashfall tuffs + tuffaceous sandstone.|acid volcanic rock|||N||08-SEP-23
Kerrawarra Dacite Member|34259|||||Yes|Member, phase|Formal|Other new published name|Defined|Tangerang Formation|27094|||Pragian||||eruption|Pragian||||||2000|NSW|No|22678||||||Sandstone facies includes plant fragments asigned to Eognathodus sulcatus (base) to Polygnathus pireneae (top) zones. Updated from GSNSW seamless geology dataset 2021.|Dark grey, massive to flow banded, crystal-rich dacitic lava, phenocrysts of plagioclase, pyroxene and trace quartz set in originally glassy groundmass, minor autobrecciated dacite, discontinuous horizons of feldspathic siltstone and minor sandstone.|acid volcanic rock|||N|I-type|17-JAN-23
Kerrawary Siltstone|70251|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Mount Fairy Group|26052|||Ludlow||||deposition|Ludlow||||||600|NSW|No|64238||Sherwin, L. (NSWGS)|18-APR-06|||Name previously used to reserve Kerrawary Tonalite (Jones, B. G. 1981) but this name is now obsolete. Used on TARALGA sheet. The beds now separated as Kerrawary Siltstone in the type area were formerly split between the upper part of the Cobra Formation and the base of the Argyle Formation of the `Taralga Group' (Scheibner 1973a, b). The outcrops on the Hume Highway, east of Goulburn, were formerly an undifferentiated unit within the `Towrang Beds' of Brunker and Offenberg (1970).|Grey, thickly- to very thickly-bedded laminated siltstone with minor massive thinly- to medium-bedded fine- to medium-grained quartzose sandstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Kerrininna Volcanics|82523|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Emsian|||inferred||Emsian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Relatively young intermediate to mafic intrusions ?interpreted from geophysics.|Altered intermediate to felsic porphyritic volcanics and/or sub-volcanic rocks (oxidised, medium-K proprphyritic dacite in Milcarpa 1 drillhole - Roach et al. 2018).|intermediate volcanic rock|acid volcanic rock||N||08-SEP-23
Keverstone Supersuite|69867|||||Yes|Supergroup|Formal|Resvd name published|Defined|||||Lower Devonian|||||Lower Devonian||||||||No|68592||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Will include the Crooked Corner and Whick Whack Suites (new names). 12/05 PP.|A-type. Felsic plutons are biotite granite and leucogranite and minor biotite-quartz syenite. Mafic plutons are quartz syenite, quartz monzonite and quartz monzodiorite, with minor quartz diorite and gabbro.|acid intrusive rock|intermediate intrusive rock||Y|A-type|17-JAN-23
Kewell Creek Volcanic Member|70498|Kewell Creek Tuff Member|30925|||Yes|Member, phase|Formal|Variation of published name|Redefined|Seaham Formation|16708|||Pennsylvanian||||eruption|Pennsylvanian||||||155||No|62095|62095|||||Similar to Birken Head Volcanic Member (Willuri Formation). Age: 320.5+/-2.9Ma. See also Kewell Creek Volcanics.|Interbedded, dacitic ashflow and ashfall ignimbrites, volcanic agglomerate, epiclastic conglomerate, volcanolithic sandstone and multicoloured ash-rich siltstone.|acid volcanic rock||forearc|N||02-JUN-23
Khan Yunis Formation|25970|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Famennian||||deposition|Famennian||||||550|NSW|Yes|39028|40276|Owen M.||Russell, T.|14-SEP-82||Reddish quartzofeldspathic, lithic sandstone, red siltstone and shale, minor conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Khancoban Granodiorite|32248|Khancoban Granite|9486|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Khancoban Suite|31595|Lower Devonian||||intrusion|Late Silurian||||||||No|60078|||||||Hornblende-biotite granodiorite, tonalite, quartz monzodiorite, diorite; common amphibolite xenoliths|acid intrusive rock|||Y||17-JAN-23
Khancoban Suite|31595|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Khatoun Tonalite|9490|Khartoun Tonalite|9487|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Suite|18973|Late Permian||||intrusion|Lopingian|253.3|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|30135||||||Correct spelling should probably be Khartoun Tonalite, but popular usage uses Khatoun Tonalite. Within the Uralla Supersuite. See also Kantoun Tonalite.|Massive, equigranular tonalite and pyroxene tonalite|acid intrusive rock|||Y|I-type|19-OCT-23
Kia-Ora Syenogranite Phase|82525|Kia-Ora Syenogranite|74783|||Yes|Member, phase|Formal|Variation of published name|Described|||Cullendore Syenogranite|82401|Middle Triassic|||inferred, geochemical correlation||Middle Triassic|||inferred, geochemical correlation|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Light pink, medium-grained, mildly porphyritic, biotite syenogranite.|acid intrusive rock|||Y|I-type|24-AUG-23
Kiah Limestone Member|9503|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Mandowa Mudstone|26010|||Famennian||||deposition|Famennian||||||||No|43406||||||Of Goonoo Goonoo Mudstone/Mandowa Mudstone. Equivalent Borah Limestone Member|Fine-grained, grey, thinly bedded and laminated micritic limestone.|carbonate sedimentary rock||forearc|N||17-JAN-23
Kialla Quartz Diorite|40936|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Emsian||||intrusion|Pragian|425.4|2.4|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|50234||||||Part of the Wologorong Batholith, but ungrouped intrusion.|Mid greenish-grey, fine- to medium-grained, equigranular, massive quartz diorite and dark grey, coarse-grained, micropoikilitic, massive quartz gabbro. rare dark grey massive tonalite near western margin.|intermediate intrusive rock|||Y||17-JAN-23
Kiama Sandstone Member|9508|Kiama Sandstone|9509|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Broughton Formation|2659|||Late Permian||||deposition|Late Permian||||||55||No|29900|||||||Purple-brown volcaniclastic sandstone with rare marine fossils; Loveleigh palaeosol near base.|siliciclastic sedimentary rock|||N||17-JAN-23
Kiandra Group|27446|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Katian||||eruption|Darriwilian||||||||No|36443|||||||Basaltic lavas, agglomerate, sandstone, mudstone and chert deposited in a submarine volcanic chain.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Kidbul mafic-ultramafic|82531|Kidbul Igneous Complex|77342|||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||U||11-SEP-23
Kidgery mafic-ultramafic|82836|Kidgery Metabasalt Member|82528|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Previous informal names include Old Kidgery, Kidgery Railway, Miandetta. Briefly described in GSNSW seamless geology dataset 2023 as 'Westlyn Igneous Complex - Kidgery mafic-ultramafic'.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||U||15-JUN-23
Kikoira Granite|9537|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Koetong Supersuite|9704|Ludlow|417|13|isotopic, K/Ar|intrusion|Llandovery|430.2|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71213||||||Of Griffin (1957). Formerly part of  Kikoira Suite of Chappell et al (1991). Now included in Koetong Suite (of the Koetong Supersuite).|Coarse- to medium-grained porphyritic granite, sporadically megacrystic, feldspar megacrysts to 9cm; abundant schistose to quartzitic xenoliths and melanocratic enclaves. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Kilbrechin Conglomerate  Member|35851|||||Yes|Member, phase|Formal|Other new published name|Fully described|Rosemeath Formation|33387|||Mississippian||||deposition|Upper Devonian|||||||NSW|No|23329|||||||Pebble- to cobble-paraconglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Kilburnie Monzogranite|67906|Kilburnie Adamellite|9541|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kilburnie Suite|73923|Stephanian||||intrusion|Namurian||||||||No|71703||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y|S-type|17-JAN-23
Kildrummie Formation|9545|Kildrummie Group|9547|||Yes|Formation, beds|Formal|Variation of published name|Defined|Campbells Group|3427|||Ludlow|||inferred, biostratigraphic correlation|deposition|Wenlock|||inferred, biostratigraphic correlation|||200|NSW|No|37727|30453|||||Defined 1976. Redefined with member status ( as Kildrummie Limestone Member) - but  reinstated as a formation on the GOULBURN 1:250K map sheet in 2012.|Grey, massive medium-bedded calcareous siltstone and mudstone interbedded in places with well sorted mica-feldspar-quartz sandstone. Grey thickly bedded recrystallised calc-arenite commonly present near base.|siliciclastic sedimentary rock|||N||17-JAN-23
Kilgower Member|9552|Kilgower Sandstone Member|9553|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Tabberabbera Formation|17618|||Middle Devonian||||deposition|Lower Devonian||||||||No|43461||||||Same as Kilgower Sandstone Member.|Interbedded mudstone and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Killarney Rhyolite|83970|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Benolong Volcanic Suite|83967|||Lower Jurassic|||||Upper Triassic|||||||NSW|No|||Simpson, B. (GSNSW)|28-AUG-23|||Named after the Killarney homestead (add geographic coordinates) where the type section is located. Only a single sizable body was found in the field. Rhyolite dykes in the area are reported which have petrographical characteristics consistent with this Member, however definitive attribution is not currently possible. The type section is located on the Killarney property (-32.49438, 148.65878, GDA94). [presumably on the Dubbo 1:100 000 map sheet tbc].|Quartz and K-feldspar phyric rhyolite.||||N||15-SEP-23
Killiecrankie Conglomerate Member|82535|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Cowangara Formation|21568|||Devonian|||inferred||Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Lensoidal conglomerate composed of poorly sorted, pebble to cobble clasts of volcanic rocks and siltstone.|medium-coarse grained siliciclastic rock|||N||11-SEP-23
Killimicat Granite|25972|Killimicat Adamellite|9562|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bogong Suite|31481|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|37529|42313||||||Fine to medium-grained biotite granite; minor aplite dykes, quartz veins|acid intrusive rock|||Y|I-type|17-JAN-23
Kiloran Conglomerate|9567|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45088|||||||||||N||17-JAN-23
Kimberley Park Monzogranite|77019|Kimberley Park Adamellite|28312|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Argyll Suite|73911|Permian|||inferred|intrusion|Carboniferous|310||isotopic, Sm/Nd|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y|S-type|17-JAN-23
Kimberley Park Suite|73928|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||Hillgrove Supersuite|67847||||||||||||||No|||Champion, Blevin and Bultitude,|20-NOV-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Kimbriki Formation|9576|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Manning Group|11186|||Cisuralian||||deposition|Cisuralian||||||||No|43385|||||||Crinoidal sandstone, tuffaceous sandstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kimo Diorite|23699|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Silurian||||magmatic crystallisation|Late Silurian|419.1|2.7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|42313|42313|H.Basden|06-MAY-82||||Includes conchoidal-fracturing hornblende diorite. I-type.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Kimridge Volcanic Member|36402|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Covan Creek Formation|4789|||Ludlow||||eruption|Ludlow||||||||No|50234||Pogson D.|21-AUG-01|||Goulburn 1:100 000 sheet area.|||||N||17-JAN-23
Kindee Conglomerate|22101|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Visean||||deposition|Tournaisian||||||1000||No|22736|22736|Roberts J.|06-SEP-93||||Marine lithic sandstone, siltstone, conglomerate, diamictite and intraformational breccia|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Kindee Creek Tonalite|80917|Kindee Creek tonalite|80786|||Yes|Formation, beds|Formal|Variation of published name|Described|||Carrai Supersuite|82123|Upper Triassic|||||Upper Triassic|227.3|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|||||||Published in RefID 71628 Bryant (2017), GSNSW Report GS2017/0408, pp17-30 to 17-32. Of Carrai Supersuite.|Medium-grained, porphyritic to equigranular tonalite, and possibly granodiorite, and monzogranite porphyry.|acid intrusive rock|||Y|I-type|17-JAN-23
King Gunnia Calc-Silicate Member|23700|||||Yes|Member, phase|Formal|Variation of published name|Defined|Cartwrights Creek Metasediments|26257|||Statherian|1647|8|isotopic, U/Pb-Pb/Pb ion probe|diagenesis|Statherian|1651|8|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|38969|39662|Brown, R. (GSNSW)|17-FEB-82|||Included in the dark, planar-layered amphibole-rich rocks of the Paragon Group  (Willyama Supergroup).|Layered, dark, graphitic, amphibole-rich rock; layering thin, planar, continuous; minor quartz and plagioclase-rich layers. Interpreted as a metamorphosed carbonaceous limestone.|metasedimentary carbonate rock||continental rift|N||17-JAN-23
Kings Cross Formation|32272|Kings Cross Shale|9608|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Tumut Pond Group|26961|||Late Silurian||||eruption|Early Silurian||||||||No|44092||||||Volcaniclastic.|Porphyritic dacite and rhyodacite ignimbrite, rare dacite lava, tuff and agglomerate|acid volcanic rock|||N||17-JAN-23
Kings Plains Granodiorite|82761|Kings Plain Granodiorite|77395|||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|||Boxwell Supersuite|69437|Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in 2017. This spelling matches place names in the area. The misspelling Kings Plain Granodiorite used in GSNSW seamless geology dataset 2021. Age from Seamless geology.|Quartz-poor granodiorite.|acid intrusive rock|||Y|I-type|18-AUG-23
Kings Vale Granite|33795|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Ludlow||||intrusion|Ludlow||||||||No|50233||Pogson D.|11-NOV-99|||Crookwell 1:100 000 sheet area.  Of the Wyangala Batholith.||acid intrusive rock|||Y||17-JAN-23
Kingsdale Limestone Member|40921|||||Yes|Member, phase|Formal|Variation of reserved name|Defined|De Drack Formation|5292|||Wenlock||||deposition|Wenlock||||||500|NSW|No|50234||||||Reserved as Kingsdale Limestone (Scott, M., 2001). Part of the Mount Fairy Group.|Grey, blue-grey to white, massive fossiliferous limestone (including micrite and grainstone) and dolomite, limestone breccia, and laminated to thinly bedded limestone and siltstone.|carbonate sedimentary rock|||N||17-JAN-23
Kingsfield Formation|9617|Kingsfield Beds|9616|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Tournaisian||||deposition|Famennian||||||700|NSW|No|35245|44244|||||Underlies the Macqueen Member (Dangarfield Formation).|Mudstone, sandstone, volcanics.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Kingsford Formation|30044|Kingsford|22108|||Yes|Formation, beds|Formal|Resvd name published|Defined|Queens Pinch Group|30152|||Lower Devonian||||deposition|Lower Devonian||||||250||No|43188|23170||||||Arenite, limestone breccia, mudstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kingsgate Suite|82536|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Kingsgate Supersuite|82127|Middle Triassic|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Equigranular, biotite syenogranite, with biotite leucomonzogranite and leucosyenogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Kingsgate Supersuite|82127|Kingsgate Leucogranite|37189|||Yes|Supergroup|Informal|Other new published name|Mentioned|||||Middle Triassic|||inferred||Lopingian|||inferred|||||No|72528||||||Used in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408. Also used in GSNSW seamless geology dataset 2021.|Equigranular, biotite syenogranite, biotite leucomonzogranite and leucosyenogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Kingsgate Syenogranite|82126|Kingsgate Leucogranite|37189|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||Kingsgate Suite|82536|Lopingian|254.4|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|254.4|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Of the Kingsgate Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408. Also used in GSNSW seamless geology dataset 2021.|Coarse-grained, pink to white, equigranular, biotite syenogranite, with minor leucosyenogranite; locally greisenous; minor chilled marginal variants and aplite veins.|acid intrusive rock|||Y|I-type|21-AUG-23
Kingsland Conglomerate Member|24337|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Carboniferous||||deposition|Carboniferous|||||40|60|NSW|Yes|37987|37987|A.Mory|28-JUN-78|Russell, T.|13-JUL-81||||||N||17-JAN-23
Kingsmill Peak Andesite Member|70499|Kingsmill's Peak Andesite|69451|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Merlewood Formation|26028|||Visean||||eruption|Visean||||||||No|62095||||||Reserved as Kingsmill's Peak Andesite.|Pyroxene andesite.|intermediate volcanic rock|||Y||17-JAN-23
Kirawin Formation|9634|||||Yes|Formation, beds|Formal|Other new published name|Defined|Black Range Group|1812|||Pragian|||inferred, overlying unit|deposition|Pragian|||inferred, underlying unit|||1000|NSW|No|36441|45147|||||age: 412-c.410 Ma (from Fig.7a, RefID 67823).|Massive-well laminated mudstone or shale, thin interbeds of fine grained, silty, volcaniclastic sandstone, minor lenses of volcaniclastic, pebble to granule conglomerate and pebbly sandstone, rare lenses of silty limestone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Kirribilli Formation|31707|Kirribilli beds|24612|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Ordovician||||deposition|Ordovician||||||||No|23334||||||Used on Parkes 1997 prelim. 1:100k sheet.|Turbidites; spaced cleavage/stripey layering is widespread in parts of this unit.|siliciclastic sedimentary rock|||N||17-JAN-23
Kirribilli Formation, Mugincoble Chert|42296|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Upper Ordovician||||deposition|Middle Ordovician||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Buff, green, mauve and light grey, commonly strongly foliated shale, siltstone, slate, phyllite, minor coarse limonitic sandstone; chert (locally manganiferous), quartz|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Kitchener Formation|27814|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Cisuralian||||deposition|Cisuralian||||||||No|34015|||||||||||N||17-JAN-23
Kiwarrak beds|26666|Kiwarrak Beds|9651|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Carboniferous||||deposition|Devonian||||||||No|41348||||||Tentatively included in the Bundook Beds by NSWGS in Brigalow South resource assessment dataset, 2001.|Laminite, mudstone, claystone, sandstone|fine grained siliciclastic rock|||N||11-SEP-23
Knightvale Granite|73373|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock||||intrusion|Wenlock|430|2.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|64681||Burton, G.|24-MAY-07|||For use on Map Sheet 8136; nearest town is Byrock. To be pub: 2008? Explan. Notes for SUSSEX and BYROCK 1:100K map sheet, GSNSW. Age: 430 +/- 2.6 Ma, U-Pb SHRIMP (Refid 69002)|Hornblende-biotite-bearing, magnetic granodiorite, with basalt xenoliths|acid intrusive rock|||Y|I-type|17-JAN-23
Knowles Group|39822|||||Yes|Group, Suite|Formal|Other new published name|Mentioned||||||||||||||||||No|24247|||||||||||N||17-JAN-23
Koetong Granite|9701|Koetong granite|9705|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Koetong Suite|9703|Lochkovian|418|4|isotopic, Rb/Sr|intrusion|Ludlow|419|6|isotopic, U/Pb|||||No|70910||||||Described. Of the Koetong Supersuite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G101. ?Called Granya Granite in Victoria?|Nonmagnetic, bluish grey, two mica cordierite granite; coarse grained biotite muscovite granite; S-type, mostly equigranular but centre is porphyritic and parts of margins are fine grained; locally abundant enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Koetong Suite|9703|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||Koetong Supersuite|9704|Silurian|432|||intrusion|Silurian|435|||||||No|42827||||||In CARGELLIGO the Koetong Supersuite is represented by only the Koetong Suite which includes: Erigolia, Eura Bonny, Weethalle, Kikoira, Yalgogrin and Ungarie Granites and Cookaburragong Granodiorite.  Incorporates the former "Ungarie Suite (mafic) and felsic "Kikoira Suite"  of Chappell et al (1991) .See also RefID 67060 p503, 505.|Predominantly medium grained equigranular to porphyritic biotite granites, with metasedimentary xenoliths and ovoid biotite-rich microgranular enclaves. Felsic, S-type.|acid intrusive rock|||Y|S-type|23-AUG-23
Koetong Supersuite|9704|||||Yes|Supergroup|Formal|Variation of published name|Described|||||Early Silurian|427|||intrusion|Early Silurian|433|||||||No|41563||||||Part of the Wagga Batholith.  In CARGELLIGO the supersuite is represented by only the Koetong Suite which includes: Erigolia, Eura Bonny, Weethalle, Kikoira, Yalgogrin and Ungarie Granites and Cookaburragong Granodiorite.|Well-defined group of high-K, peraluminous, S-type granites extending from northern Victoria to Cargelligo area; fractionated; Coarse- to medium-grained equigranular to porphyritic biotite +/- cordierite and muscovite granite and granodiorite.|acid intrusive rock|||Y|S-type|23-AUG-23
Kohinoor Volcanics|27175|Kohinoor Volcanics Formation|32631|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Hoskinstown Group|8512|||Late Silurian||||magmatic crystallisation|Late Silurian|425.7|3.4|isotopic, U/Pb-Pb/Pb ion probe|||1300|NSW|Yes|12185|42820||||||Rhyodacitic ignimbrite, agglomerate and minor argillaceous sediments.|acid volcanic rock|||N||05-SEP-23
Kohinoor Volcanics, Copper Creek Shale|42279|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Hoskinstown Group|8512|||Late Silurian||||deposition|Late Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Rhyodacitic ignimbrite, agglomerate; dark grey shale, siltstone, limestone, quartzite with conglomerate|acid volcanic rock|siliciclastic sedimentary rock||N||05-SEP-23
Komoora mafic-ultramafic|82827|Komoora Igneous Complex|82534|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Used in GSNSW seamless geology dataset 2023. See also previous (?misspelt) name Koonora Igneous Complex.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||Y||27-SEP-23
Komungla Rhyolite Member|69888|||||Yes|Member, phase|Formal|Other new published name|Defined|Gundary Volcanics|69883|||Lochkovian|||inferred|eruption|Pridoli|||inferred, intrusive relationship|||1580|NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Of the Mount Fairy Group.|Cream vesicular quartz-feldspar-phyric rhyolite, miarolitic quartz-feldspar-phyric micrographic rhyolite and aplite intrusive.|acid volcanic rock|acid intrusive rock||Y||17-JAN-23
Koo-Lee Tuff Member|37354|||||Yes|Member, phase|Formal|Resvd name published|Described|Gerringong Volcanics|7155|||Late Permian|||inferred|eruption|Late Permian|||inferred||2||NSW|No|71542||Jones B.|15-NOV-01|||Type section 56/291250E, 6141300N. A new member within the Broughton Formation, southern Sydney Basin. It forms part of the Gerringong Volcanic facies. Named for the property of Koo-Lee on which it occurs.The Koo Lee Tuff is a fine grained, fossiliferous, mafic tuff [pers.comm. Glenn Bann 18-Oct-2021]|Slightly fossiliferous pyroclastic vitric mafic tuff. Volcanic ash deposit including chaotic glass shards in a cryptocrystalline vitreous matrix.|basic volcanic rock|||N||17-JAN-23
Koogah Formation|28651|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Artinskian||||deposition|Artinskian||||||||No|43407|||||||Coals, carbonaceous shales and sandstones.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Kookabookra Monzogranite|38287|Kookabookra Adamellite|9763|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kookabookra Suite|73931|Cisuralian||||intrusion|Cisuralian|292|3||||||No|23811||||||Formerly of Hillgrove Suite; now part of Kookabookra Suite in the Hillgrove Supersuite.|Foliated, coarse-grained, slightly porphyritic biotite monzogranite, with metasedimentary enclaves, rare hornblende-rich enclaves and some leucocratic phases|acid intrusive rock|||Y|S-type|25-AUG-23
Koolambah Monzogranite|76956|Koolambah Granodiorite|9767|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Michelago Suite|77098|Lower Devonian||||intrusion|Lower Devonian||||||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See previous name Koolambah Adamellite for definition. Of Michelago Suite. Used in GSNSW seamless geology dataset 2021, 2023.|Hornblende-biotite monzogranite|acid intrusive rock|||Y|I-type|10-SEP-23
Koolanock Sandstone|27176|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Serpukhovian||||deposition|Serpukhovian||||||1625|NSW|No|32868|36057||||||Brown to grey lithic sandstone, interbedded bioturbated siltstone, cream rhyolite flows, upward fining conglomerate, carbonaceous siltstone and minor coal seams|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Koonburra Creek Quartzite Member|24342|Koonburra Creek Quartzite|9791|||Yes|Member, phase|Formal|Resvd name published|Redefined|Mount Daubeny Formation|12623|||Lower Devonian||||deposition|Late Silurian||||||75|NSW|Yes|42121|42121|Neef G.|14-AUG-81|NSW SNSC|27-FEB-91|Basal member of Mount Daubeny Formation. See also misspelt Koonaburra Creek Quartzite Member.|Grey, fine-grained, commonly tabular cross-stratified, orthoquartzite; rare small clasts of vein quartz; very rare clasts of red arenite.|metasedimentary siliciclastic rock|||N||17-JAN-23
Koonenberry Formation|22128|Koonenberry beds|35625|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ponto Group|35621|||Middle Cambrian||||deposition|Middle Cambrian||||||||No|66623|66623|S.R.Penney, S.W.Davies|24-JAN-87||||Magnetic and non-magnetic green-grey metamudstone (phyllite), metasiltstone, metasandstone, dolerite sills, tholeiitic basalt, pillow basalt, basaltic tuff and thin quartz-magnetite horizons; red-brown to black, very fine-grained, quartz-magnetite rock.|metasedimentary siliciclastic rock|basic volcanic rock||N||17-JAN-23
Koorainghat beds|9801|Koorainghat Beds|28653|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mississippian||||deposition|Devonian||||||||No|41348||||||Tentatively included in Devonian Bundook beds by NSWGS Brigalow resource assessment work (2001)|Lithic sandstone, tuff, laminite, siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kooranjie Conglomerate|80932|Kooranjie Conglomerate Member|22130|||Yes|Formation, beds|Informal|Variation of reserved name|Mentioned|||||Pridoli|||||Pridoli||||||||No|70751||||||Possibly a member of Mount Knobby Formation?|||||N||17-JAN-23
Koorawatha Formation|9803|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cookamidgera Subgroup|4495|||Famennian||||deposition|Famennian||||||300||No|43507|43507|||||Part of the Hervey Group.|Red to fawn, thin to medium bedded, well-sorted, planar-laminated and ripple x-laminated, interbedded. fine-grained lithic-quartz sandstone and red siltstone, with minor interbeds of white, thin-bedded, fine-grained quartz sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kooringal Dacite Member|37902|||||Yes|Member, phase|Formal|Variation of reserved name|Defined|Caroda Formation|3651|||Visean||||eruption|Visean|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|Also referred to as the abbreviated Kooringal Dacite.|||||N||17-JAN-23
Kooringaroo Group|72565|Kooringaroo|22133|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Cenozoic|||||Cenozoic||||||||No|68592||Scott, M. (GSNSW)|02-OCT-06|||Prev. reserved (Jones 1992) but not published. Re-reserved for use on map sheet 8828 IIS, nearest town is Bungonia, named for the property in centre sheet. To be published on Goulburn 250k map and Explan. Notes (2007). Not used in GSNSW Seamless Geology 2021.|||||N||17-JAN-23
Kopyje Group|28654|Kopyje Beds|27452|||Yes|Group, Suite|Formal|Variation of published name|Defined|Cobar Supergroup|27673|||Lochkovian|||||Pridoli||||||2000|NSW|No|35287|41528|||||Kopyje Shelf, Canbelego-Mineral Volcanic Belt.|Shelf sediments of sandstone and limestone - including polymictic conglomerates with lithic sandstone and minor siltstone. Also volcanic and volcaniclstic rocks.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||29-SEP-23
Koreelah Conglomerate Member|24343|||||Yes|Member, phase|Formal|Resvd name published|Defined|Gatton Sandstone|7050|||Jurassic||||deposition|Triassic||||||50|NSW|Yes|42248|42248|Wells A.T.|21-APR-88|NSW SNSC|27-FEB-91|Within the Marburg Subgroup.|Polymictic conglomerate, conglomeratic sandstone, sandstone, siltstone, ferruginised and silicified wood|siliciclastic sedimentary rock||oceanic backarc|N||17-JAN-23
Koreelah Creek Granodiorite|67848|Koreelan Creek Granodiorite|25132|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Middle Triassic||||intrusion|Lower Triassic|246.3|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Place name is spelt "Koreelah Creek", but the unit name has rarely been published with this spelling until 2017 - see Koreelan Creek Granodiorite. Used in GSNSW seamless geology dataset 2021 and 2017 publication. Previously included in Clarence River Suite. Currently [2021] ungrouped.|Mottled grey and white, fine- to medium-grained, equigranular to seriate, hornblende-biotite-(pyroxene) granodiorite to quartz diorite and quartz monzodiorite, with minor tonalite and monzogranite; local porphyritic and foliated variants. I-type.|acid intrusive rock|intermediate intrusive rock||Y|I-type|18-AUG-23
Koringaroo Group|72792|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Oligocene|||||Oligocene||||||||No|62740||||||Misspelling of Kooringaroo? Kooringaroo Group reserved by M.Scott (2006) for Goulburn map sheet.|||||N||17-JAN-23
Kosciusko Batholith - igneous rocks 82914|82914|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Kosciusko Batholith units', Duk, Suk. Used in GA Solid Geology layer.|Gneissic to massive granite (common metasedimentary xenoliths), granodiorite and tonalite, sporadic aplite; biotite+/-muscovite monzogranite, leucogranite; sporadic gabbro, diorite and microgranite porphyry.|acid intrusive rock|basic intrusive rock||Y||05-SEP-23
Kosciusko Granite|9831|Kosciusko granite|9835|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Late Silurian||||intrusion|Late Silurian||||||||No|43344|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Kotara Formation|27815|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||15||No|43447||||||Of Adamstown Subgroup, Newcastle Coal Measures. This name was dropped ~1999. Included Merewether Conglomerate Member. Rocks were in Adamstown Formation, but Adamstown Subgroup and all its formations and members reinstated ~2015.Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate, sandstone, shale and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||02-SEP-23
Koukandowie Formation|9839|Koukandowie Sandstone Member|9842|||Yes|Formation, beds|Formal|Variation of published name|Defined|Marburg Subgroup|11255|||Bajocian|||inferred, biostratigraphic correlation|deposition|Toarcian|||inferred, biostratigraphic correlation|||400|QLD|Yes|42951|42248|Wells A.T.|01-MAR-88|NSW SNSC|27-FEB-91|Of the Bundamba Group. Said to include Westgrove Ironstone Member (usually associated with Evergreen Formation, Surat Basin) in RefID 72921, Bianchi et al. (2019). Type section in  GSQ Ipswich 24 (Reference Section GSQ Ipswich 18).|Fine- to coarse-grained, quartz to quartz-lithic sandstone in fining-up sequences.  Crossbedded and rippled; thin pebble conglomerates at base of sand channels; shale and siltstone, minor coal, ferruginous oolite marker|siliciclastic sedimentary rock||oceanic backarc|N||31-JUL-23
Koukandowie Formation - shale and sandstone|83919|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Koukandowie Formation|9839|||Bajocian|||||Toarcian||||||||No|||||||Informal subunit of Koukandowie Formation. Used in GSNSW seamless geology dataset 2023. Used in GA Solid Geology dataset.|Fine- to coarse-grained, thin-to very thick-bedded, cross-bedded, quartz to sublithic sandstones, (mainly arenite), interbedded with pebble and minor cobble conglomerate, grey siltstone and claystone, minor coal.||||N||04-AUG-23
Kow Sand|9844|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|33486|||||||Sand|siliciclastic sedimentary rock|||N||17-JAN-23
Kowmung Formation|69882|Kowmung Volcaniclastics|27177|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Mount Fairy Group|26052|||Lochkovian|||inferred, overlying unit|deposition|Lochkovian|||inferred, underlying unit|||600|NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||Will replace the informal "Kowmung Formation" and Kowmung Volcaniclastics on the new GOULBURN 1:250 000 sheet (2006) - becoming part of the Mount Fairy Group.|Massive, very thick bedded, medium-coarse grained, lithic quartzofeldspathic sandstone interbedded with siltstone and mudstone; massive to flow banded rhyolite; minor rhyolitic volcanic breccia and sandstone.|acid volcanic rock|siliciclastic sedimentary rock||N||11-SEP-23
Kruge Conglomerate Member|23706|||||Yes|Member, phase|Formal|Resvd name published|Defined|Burthong Formation|3177|||Lochkovian||||deposition|Pridoli||||||350|NSW|No|41394|41528|G.MacRae|28-MAR-85|||Used in GSNSW seamless geology dataset 2021.|Massive- and cross-bedded granule conglomerate and sandstone (subarkosic sublitharenite); massive- to parallel-laminated sandstone (sublitharenite).||||N||24-JUL-23
Kuark Metamorphic Complex|9854|Kuark Metamorphics|9856|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Wenlock|||||Llandovery||||||||No|42627||||||Rocks derived from Pinnak Sandstone.The Kuark Metamorphic Belt is in middle of MURRUNGOWAR. Considered to be continuous with Cambalong Metamorphic Complex near Bombala. See also Kuark Metamorphics.|Cordierite-andalusite schist and phyllite with porphyroblasts of andalusite and/or cordierite in a mica/quartz matrix. K-feldspar-sillimanite schist, gneiss and minor migmatite with biotite, sillimanite, K-feldspar, quartz, cordierite, plagioclase.|metasedimentary siliciclastic rock|||N||17-JAN-23
Kullatine Formation|9879|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Serpukhovian||||deposition|Serpukhovian|323|||||1370|NSW|No|33992|34293|||||Supersedes Taits Creek Formation. Formerly shown to be in Qld - probably poor reference.|Siltstone, lithic sandstone, diamictite and conglomerate|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Kulnura Marine Tongue|9886|||||Yes|Formation, beds|Formal|Other new published name|Described|Wallis Creek Subgroup|19293|||Late Permian|||||Late Permian||||||160||No|29900|||||||Siltstone, mudstone and claystone; sporadic fossil, dropstones and glendonites.|fine grained siliciclastic rock|||N||17-JAN-23
Kunderang Brook Limestone|9906|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Cisuralian||||deposition|Cisuralian||||||||No|29990||||||||carbonate sedimentary rock|||N||17-JAN-23
Kurool Formation|9924|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|34109|||||||||||N||17-JAN-23
Kurrajong Park Formation|9925|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cudal Group|4974|||Wenlock||||deposition|Wenlock||||||392||No|31852|||||||Interbedded grey to brown and black siltstone and fine to coarse grained lithic sandstone with minor shale and siliceous sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Kurri Kurri Conglomerate|9934|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Cisuralian||||deposition|Cisuralian||||||||No|34015||||||Sydney Basin.|Orthoconglomerate, poorly sorted, with fine- to medium-grained matrix, clasts range from granule to cobble-size, clasts include characteristic green jasper pebbles, minor sandstone and shale near base. Coal|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Kurrool Formation|9935|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Canangle Subgroup|3442|||Famennian||||deposition|Famennian||||||540||No|43512|23170|||||Wellington &/or Euchareena 1:100 000 sheet area. Defining ref (Dubbo Explan Notes, 1999) refers to age of unit as Late Carboniferous. Famennian ages come from another ref - contradiction which needs clarification.|Red siltstone, minor sandstone and conglomerate.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Kurrunbede Coal Member|77370|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Check spelling. Kurrumbede previously reserved. Used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, seam thickness ranges, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Kuttung Formation|9951|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pennsylvanian||||deposition|Pennsylvanian|300|10||||||No|43925||||||See also Kuttung Group, Kuttung Volcanics. It appears that Kuttung Formation is used in Qld & Kuttung Volcanics in NSW.|Tuff,  andesite, dacite, siltstone, sandstone, conglomerate, shale|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Kyambra Granodiorite|9966|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|45003||||||||acid intrusive rock|||Y||17-JAN-23
Kyeamba Monzogranite|77631|Kyeamba Adamellite|27816|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||Kyeamba Suite|31597|Silurian||||intrusion|Silurian||||||||No|69371||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. Previously shown as part of Koetong Supersuite, but reasons unclear. See previous name for definition. Eastern Lachlan Orogen. Note: The dating of Burrandana Granite, Kyeamba Suite at 417.7+/-2.8 Ma is said to cast doubt on the previous inclusion of this Suite in the Koetong Supersuite (Bodorkos et al.2013).|Medium-grained, commonly feldspar-phyric monzogranite|acid intrusive rock|||Y||17-JAN-23
Kyeamba Suite|31597|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||magmatic crystallisation|Late Silurian|417.7|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||The dating of Burrandana Granite, Kyeamba Suite at 417.7+/-2.8 Ma is said to cast doubt on the previous inclusion of this Suite in the Koetong Supersuite (Bodorkos et al.2013).|S-type, felsic, unfractionated granite|acid intrusive rock|||Y||17-JAN-23
Kyndalyn Mudstone Member|9979|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Merlewood Formation|26028|||Visean||||deposition|Visean|||||0|170|NSW|Yes|32286|37987|Moore D., Roberts J.|08-SEP-75|Bryan, J.H.|23-SEP-75||Well-bedded mudstone with subordinate siltstone.|fine grained siliciclastic rock|||N||17-JAN-23
Kynuna Granite|30553|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Boggy Plain Supersuite|2092|Emsian||||intrusion|Lochkovian||||||||No|23043||Wyborn D.|21-OCT-96|||Wellington 1:100 000 sheet area. Yeoval Batholith. Description provided to Central Register 11May98. Previously considered part of Yeoval Suite.|Pink to red medium-grained biotite granite|acid intrusive rock|||Y||17-JAN-23
Kyogle Basalt|25142|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Focal Peak Volcanics|83654|||Chattian|||inferred, geological correlation|eruption|Chattian|||inferred, geological correlation||50|330|NSW|Yes|30605|30604|Duggan M.B., Mason D.R.|20-OCT-76|Hawke, J.|08-DEC-76|Previously said to be of Lamington Volcanics, but they underlie this. Said to be of Focal Peak Group in 2007, of Focal Peak Volcanic Complex in 2021. Age range from GSNSW seamless geology 2021. Unit hasn't be directly dated and is assigned a date in the GSNSW seamless geology 2021 based on the Focal Peak Volcano.|Predominantly hawaiite with minor alkali olivine basalt and basanite and rare tholeiitic volcanics. Many hawaiites, especially those near the base of the sequence, approach mugearite in composition.|basic volcanic rock|||N||17-JAN-23
Kyong Formation|24349|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Thackaringa Group|25749|||Statherian||||deposition|Statherian|||||180|860|NSW|Yes|40290|40290|R.E.Brown|30-APR-85|NSW SNSC|11-DEC-85|Olary / Broken Hill Province. Within the Willyama Supergroup.|Psammitic to pelitic metasediments intercalated with quartzo-feldspathic gneisses (including leucocratic and biotite-rich types), forming beds and lenses.|metasedimentary siliciclastic rock|||N||17-JAN-23
Kywong beds|34075|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Manning Group|11186|||Cisuralian||||deposition|Cisuralian||||||||No|22612|||||||Polymictic conglomerate, lithic sandstone, laminated siltstone, ash fall tuffs and andesitic lava flows|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Lachlan Supergroup|82541|||||Yes|Supergroup|Informal|Other new published name|Fully described|||||Ordovician|||inferred||Furongian|||inferred|||||No|73140||||||Used in GSNSW seamless geology dataset 2021.|||||N||17-JAN-23
Lady Brassey Formation|23711|||||Yes|Formation, beds|Formal|Other new published name|Defined|Thackaringa Group|25749|||Statherian|1704|3||deposition|Statherian|1720|||||600|NSW|No|38969|39662|I.L.Willis|09-FEB-82|||Part of Himalaya Suite, used in Proterozoic Granites Project. Within the Willyama Supergroup. Lateral equivalent of Alma Gneiss. Part of the formation was formerly referred to as "Farmcote gneiss" in the Redan geophysical zone of Broken Hill Domain - a zone in which the stratigraphy has been revised to create the new Rantyga Group (Redan and Ednas Gneisses, Mulculca Formation and the now formalised Farmcote Gneiss).|Well to poorly bedded leucocratic sodic plagioclase-quartz rocks, either massive, discrete units or thin to thick interbeds within psammitic to pelitic metasedimentary composite gneisses. Substantial conformable basic gneiss.|high grade metamorphic rock||continental rift|N|A-type|17-JAN-23
Lady Don Quartzite|10001|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Pintapah Subgroup|15278|||Neoproterozoic|||||Cryogenian||||||150||No|30261|||||||White, silicified quartzite.|metamorphic rock|||N||17-JAN-23
Lady Louise Suite|35889|Lady Louise|35462|||Yes|Group, Suite|Formal|Resvd name published|Defined|Willyama Supergroup|20135|||Statherian|1685|4|isotopic, U/Pb-Pb/Pb ion probe||Statherian|1690||||||SA|No|23347|23347|Conor C.|07-APR-00|||Age: ~1.69Ma. Olary Domain, Curnamona Province. Intrudes the Saltbush Group. Of Willyama Supergroup?|Amphibolite, quartz-bearing, locally differentiated to hornblende granite, intrusive sills and dykes, metamorphosed and deformed; metabasalt with pillows.|metamorphosed basic igneous rock|||Y||17-JAN-23
Lady Northcotts Granodiorite|32270|Lady Northcotes Canyon Granodiorite|22156|||Yes|Formation, beds|Informal|Variation of reserved name|Mentioned|||Lady Northcotts Suite|31600|Late Silurian||||intrusion|Late Silurian||||||||No|60078||||||Correct spelling of name used in Kosciusco National Park map, Wyborn et al 1990.|Biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y||17-JAN-23
Lady Northcotts Suite|31600|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Laidlaw Volcanics|10024|Laidlaw Formation|10016|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Douro Group|5668|Laidlaw Volcanic Suite|10023|Ludlow|||inferred, biostratigraphic correlation|eruption|Llandovery|432.9|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|150|1300|NSW|No|32106|68592|||||See also RefID 67060 p505. Minimum age from conodont fauna in Bowspring Limesone member of overlying Silverdale Formation.|Dark to light grey, very coarse-grained, porphyritic, rhyodacitic ignimbrite. Sporadically grades to a coarse-grained equigranular ignimbrite. lesser amounts of volcaniclastic sandstone, volcanic breccia, and minor airfall tuff. Rare columnar structure.|acid volcanic rock|siliciclastic sedimentary rock||N|S-type|17-JAN-23
Lake Bathurst Limestone Member|27457|||||Yes|Member, phase|Formal|Variation of published name|Defined|Bongalaby Formation|27113|||Emsian|||biozone|deposition|Emsian|||biozone|||80|NSW|Yes|30730||Huleatt M.B.||Hawke, J.|20-FEB-79|Also referred to as Lake Bathurst Limestone.|Grey to blue-grey, fossiliferous, massive to well-bedded biomicrite; lesser sandy biomicrite, biosparite and calc-arenite; minor cross-bedded, coarse-grained, calcareous lithic-quartz-feldspar sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Lake Bathurst Suite|31522|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Glenbog Supersuite|7362||||||||||||||No|42726|||||||||||Y||17-JAN-23
Lake Cowal Volcanic Complex|33050|Cowal Complex|4793|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Upper Ordovician|460||inferred, intrusive relationship|minimum depositional age|Middle Ordovician|470||isotopic, U/Pb-Pb/Pb ion probe|||||No|22797|24417|Raymond O., Lyons P.|12-NOV-98|||Subsurface in Forbes 1:250 000 sheet area. See also Lake Cowal Volcanics, Cowal Igneous Complex. Updated from GSNSW seamless geology dataset 2021.|Intermediate calc-alkaline volcanic, volcaniclastic and epiclastic rocks, trachyandesite (emplaced as a lava); intruded by syenite, granodiorite, diorite and gabbro; polymictic conglomerate, sandstone, laminated pelite, trachyandesite and hyaloclastite.|intermediate volcanic rock|basic intrusive rock|island arc|N||24-JUL-23
Lake George Formation (NSW)|10050|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Pleistocene|||||Pliocene||||||||No|40664||||||Invalid name. Lake George Beds, beds, Formation WA has priority. (CEBMar95).|||||N||17-JAN-23
Lake Victoria Sand|10073|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Holocene||||deposition|Pleistocene||||||43.5|NSW|Yes|30996|30996|Gill E.D.|19-SEP-72||||||||N||17-JAN-23
Lakes Road Rhyolite Member|23712|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Alum Mountain Volcanics|342|||Kungurian|||inferred|eruption|Kungurian|275.1|3.4|isotopic, U/Pb-Pb/Pb ion probe|deposition||130|NSW|No|36057|36057|J.Hunt, D.Crane|23-JUL-76||||Rhyolitic volcanics|acid volcanic rock|||N||17-JAN-23
Lambie Group|10103|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Upper Devonian||||deposition|Upper Devonian||||||3109||No|43491|23170||||||Terrigenous to shallow marine, quartz sandstone, quartzite, siltstone, mudstone, conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Lambs Valley Ignimbrite Member|25987|||||Yes|Member, phase|Formal|Variation of published name|Defined|Mowbray Formation|26060|||Serpukhovian||||intrusion|Visean|||||40|100|NSW|Yes|31228|31228|Hamilton G., Hall G.|12-MAR-73|||Previously included in the Mowbray Formation. GSNSW seamless geology dataset 2021 lists this unit as Carboniferous to Carnian (late Triassic), but also say it is part of the Mowbray Formation which they say is Serpukhovian, although other members of this formation are said to be Visean (older)?|Basal white welded rhyodacitic ignimbrite overlain by purple welded rhyodacitic ignimbrite that turns lime-green in colour when weathered.|acid volcanic rock|||N||02-JUN-23
Lambton Subgroup|10115|Lambton Sub-Group|25150|||Yes|Subgroup|Formal|Variation of published name|Described|Newcastle Coal Measures|27861|||Lopingian|||||Lopingian|||||||NSW|No|43448||||||Of McKenzie and Britten (1969). Replaced by Lambton Formation. Apparently reinstated as Subgroup (2015): RefID 70647. Updated from GSNSW seamless geology dataset 2021.
See Lambton Formation for type section location.|Sandstone, siltstone, claystone, conglomerate, coal and tuffaceous sandstone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||14-AUG-23
Lamington Group|10117|Lamington Volcanics|10120|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Early Miocene|17|||eruption|Early Miocene|22|||||||No|44782||||||Replaced by Lamington Volcanics - confirmed by GSQ Feb 2007 but appears to have reverted back to Group in 2012.  Associated with the Tweed Volcano. Lamington Volcanics used in Geology of Queensland 2013, p595. Age: 22-17Ma. In the Brisbane region. Preferred name in NSW is still Lamington Group [Aug 2012].|Olivine basalt.|basic volcanic rock|||N||17-JAN-23
Lamington Volcanics|10120|Lamington Group|10117|||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Early Miocene|17|||eruption|Early Miocene|22|||||||No|43881||||||See also Lamington Group (Fully Desc.) - the preferred name in NSW [Aug-2012] and Qld [2012 State map]. Probably supersedes MacPherson Volcanics. Lamington Volcanics used in Geology of Queensland 2013, p595.|Basalt, sub-alkali basalt with members of rhyolite, trachyte, tuff, agglomerate, conglomerate and andesite|basic volcanic rock|acid volcanic rock||N||17-JAN-23
Lamons Creek Quartz Monzodiorite|82542|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Medium-grained, seriate, biotite-(hornblende) quartz monzodiorite, characterised by migmatitic-schistose and alkali granite enclaves.|intermediate intrusive rock|||Y||24-AUG-23
Landers Creek Formation|10139|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boraig Group|24753|||Lower Devonian||||deposition|Lower Devonian||||||420||No|34403|||||||Andesitic tuff, sandstone.|medium-coarse grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Lanes Shaft Coal Member|25988|||||Yes|Member, phase|Formal|Resvd name published|Defined|Narrow Plain Formation|13911|||Late Permian||||deposition|Late Permian|||||3.5|19|NSW|Yes|35498|35498|Palese G.W.|11-NOV-75|NSW SNSC|20-JUN-76|Geological Province: Ovens Graben [underlies Murray Basin]|Coal dull, very uniform; common fusain lenses; clayey in part; three claystone buff to grey, possibly tuffaceous bands.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lang Formation|73367|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Girilambone Group|27158|||Darriwilian||||deposition|Tremadocian|||||||NSW|No|67322||Burton, G.|22-MAY-07|||For use on map sheet 8135; nearest town is Nyngan.  Explan. Notes for Sussex and Byrock 1:100K map sheets, GSNSW. Facies variant of Ballast Formation. Named after Lang Trig Station; the rather complicated type area (no type section) is in this vicinity with the coordinates of a number of separate outcrops detailed. Used in GSNSW seamless geology dataset 2023. Lith description updated for GA Alkaline Rocks dataset, probably from Burton et al. (2012). Age is constrained by conodont assemblages (Percival, 2007)|Interbedded quartz-rich sandstone, siltstone, slate and phyllite with minor thin chert horizons; variably metamorphosed.  Rare mafic to intermediate volcanic rocks.|siliciclastic sedimentary rock|||N||09-JUN-23
Langari Hill Volcanics|69819|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Miocene|14.2|.02|isotopic, K/Ar|eruption|Middle Miocene|20.5|.3|isotopic, K/Ar|||80||No|63347|63347|Dawson, M. (DPI, NSW)|15-NOV-05|||For Sheet 9138; nearest town is Inverell.|Olivine-bearing tholeiitic basalt with minor volcaniclastic rocks.|basic volcanic rock|||N||27-APR-23
Lapstone Complex|28669|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|36042|||||||||||N||17-JAN-23
Larbert Conglomerate|75929|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Bindook Group|69879|||Lochkovian||||deposition|Lochkovian||||||||No|69159||Deyssing, L. (GSNSW)|20-APR-11|||To be published = Braidwood 1:100000 geological map 2nd ed.|Cream to green, pebble to cobble conglomerate. Clasts include quartz-rich sandstone and siltstone, mudstone and chert.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Lark Hill Formation|10194|||||Yes|Formation, beds|Formal|Other new published name|Defined|Currangandi Group|38099|||Kasimovian|305|||deposition|Moscovian|311|||||730||No|43435|43435|||||Geological Province: Boomi Block. Age : Westphalian (= Moscovian-Kasimovian)|Coarse lithic and feldspathic arenite, subordinate orthoconglomerate and paraconglomerate, siltstone and rhyodacitic and dacitic ashflow tuff|siliciclastic sedimentary rock|acid volcanic rock|forearc|N||17-JAN-23
Laura Creek molybdenite|10233|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|41603|||||||||||N||17-JAN-23
Laurieton Conglomerate|10240|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Camden Haven Group|28197|||Lower Triassic|||inferred, overlying unit|deposition|Lower Triassic|||inferred, underlying unit||45|210|NSW|Yes|32719|66090|Pratt, G.W., Herbert C.|15-DEC-72|Sherwin, L.|01-AUG-10|Originally defined by Pratt, G.W., Herbert C. 1972. Redefined by Pratt, July 2010.|Coarse jasper, quartz and chert bearing conglomerate, minor sandstone and siltstone to the west.Reddish to grey poorly to moderately sorted pebble to cobble conglomerate. Sandstone beds uncommon. Reddish-purple mudstones absent.|siliciclastic sedimentary rock|||N||17-JAN-23
Lawrence Sandstone Member|10263|Lawrence Sandstone|10264|||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Late Permian||||deposition|Late Permian||||||||No|29900||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Lawsons Creek Shale|10267|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Knowles Group|30853|||Upper Devonian||||deposition|Frasnian||||||400||No|43476|23170|||||Formerly considered part of Lambie Group.|Mudstone, shale with thin quartz arenite interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Lawsons Gully Porphyry|10268|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||eruption|Lower Devonian|||||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76||||||U||17-JAN-23
Laytons Range Conglomerate|26684|Laytons Range Conglomerate Member|10272|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Woogaroo Subgroup|20540|||Rhaetian||||deposition|Rhaetian||||||80||No|34340||||||Previously mapped as Corindi Conglomerate, but this name has now been discarded.  Incorporates the Aberdare Conglomerate.|Polymictic pebble and cobble ortho- and para-conglomerate; subordinate lenses and beds of coarse-grained, crossbedded sublithic to lithic sandstone. Clasts include chert, volcanics and sedimentary rocks|medium-coarse grained siliciclastic rock||oceanic backarc|N||27-AUG-23
Leadville Quartz Monzonite|35069|Leadville Monzonite|32396|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|||Gulgong Suite|31452|Visean||||intrusion|Tournaisian||||||||No|23043|23170||||||Porphyritic quartz monzonite|intermediate intrusive rock|||Y||17-JAN-23
Leaning Rock Monzogranite|77030|Leaning Rock Adamellite|32259|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Published in GSNSW seamless geology.|White aplitic granite and leucogranite.|acid intrusive rock|||Y||30-SEP-23
Leard Formation|10280|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Bellata Group|30037|||Kungurian||||deposition|Sakmarian|||||30|32|NSW|Yes|36940|43194|J.W.Brownlow|08-FEB-77|||Parent added from Geol Surv NSW Mem Geol 12. Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|Pelletoidal clay sandstone and conglomerate, poorly bedded and carbonaceous; minor dull coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||02-SEP-23
Lease Tuff Member|10285|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Meryula Formation|11741|||Lower Devonian||||eruption|Lower Devonian|||||||NSW|No|35287|39618|||||Used in GSNSW seamless geology dataset 2021.|Vitric and crystal-lithic felsic tuff, tuffaceous siltstone.||||N||21-JUL-23
Leather Barrel Pyroxenite|22180|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Middle Ordovician|||||Lower Ordovician||||||||No|44092||L.Wyborn|03-DEC-76|||After lapsing in 1981, reserved name finally published 1990.|Gabbro, diorite, metabasic intrusive rock, pyroxenite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Ledgeworth Facies|40925|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Hawkins Volcanics|8184|||Wenlock|||||Wenlock||||||||No|50230||||||Briefly described.|Grey to white, aphanitic vitric tuff, with sporadically developed finely disseminated pyrite, abundant quartz and host-rock breccia, laminated crypto-crystalline quartz veins.||||N||17-JAN-23
Leesville Granodiorite|25990|Leesville Granite|10295|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Leeton Igneous Complex|33861|||||Yes|Group, Suite|Informal|Other new published name|Described|||||Middle Devonian|||inferred, overlying unit||Middle Devonian|||inferred, intrusive relationship|||||No|22508|||||||Plutonic, dominantly silicic; includes altered porphyritic leucocratic granite with quartz, feldspar and biotite crystals in a matrix of perthite-microcline, and greisen granites composed of quartz and feldspar with miarolitic cavities and sulfides.|acid intrusive rock|||Y||17-JAN-23
Legume Sandstone|23721|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33476||J.Thomson|24-AUG-77|||Publ. 79/04313. Connection missed.||siliciclastic sedimentary rock|||N||17-JAN-23
Leloma Formation|23722|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Craven Subgroup|24888|||Late Permian||||deposition|Late Permian||||||585||No|40872||M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Bedded, lithic sandstone, mudstone, coal and mudstone and claystone.  Pebble conglomerate and coarse sandstone stringers. Distinctive white claystone beds after airfall tuffs. Westwards coarsening.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Lemington Coal Member|77625|Lemington Seams|10332|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Foybrook Formation|26561|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Banded bright and dull coal separating (up) to 10 splits, calcite in cleats; brown and grey claystone and mudstone bands|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lemington Seams|10332|||||Yes|Formation, beds|Informal|Unknown or process pending|Described||||||||||||||||||No|29942|||||||||||N||17-JAN-23
Leneghans Flat Claystone Member|22182|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Sandgate Formation|77588|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||B.C.Preston, K.J.Brown|10-JUL-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Light grey and grey tuffaceous claystone, moderately soft and waxy with sporadic harder 'cherty' phases, weakly laminated in parts, limonite deposition along sub-vertical joint planes|fine grained siliciclastic rock|||N||17-JAN-23
Lerida Limestone Member|23723|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Biddabirra Formation|28129|||Lower Devonian||||deposition|Lower Devonian|||||||NSW|No|38292|43032|R.A.Glen|24-JAN-80|||To be used in the Cobar area. Part of lower Amphitheatre Group. Said to be included in the CSA Siltstone (Glen, 1994), but more recently included in the Biddabirra Formation.|Limestone.|carbonate sedimentary rock|||N||03-AUG-23
Lett Granite|26686|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Hartley Suite|31451|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Levy Greywacke Member|10362|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||||||deposition|||||||||No|43400|43400|||||See also Levy Graywacke Member (Geology of NSW, 1998) - data yet to be entered. PP 12/2004.|||||N||17-JAN-23
Lewes Member|82543|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Mount Ariah Rhyolite|80568|||Lochkovian|||inferred||Lochkovian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Quartz-feldspar porphyry.|acid volcanic rock|||N|S-type|18-SEP-23
Lewis Coal Member|27463|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Skeletar Formation|16963|||Permian||||deposition|Permian||||||||No|39346||||||Greta Coal Measures, Sydney Basin. Musswellbrook area.|Coal, with no persistent bands and relatively few "floating" bands|organic rich sedimentary rock|||N||17-JAN-23
Lewis Ponds Granite|28114|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Lewis Ponds Suite|77126|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Includes Brittlejack Granite & Brothers Creek Granite as 'Members'in Bathurst 1:250 000 sheet notes.Formal name not intended in Chappell et al (1991). Intrudes Anson Formation, Mullions Range Volcanics, Barnby Hills Shale and Bay Formation.|Biotite muscovite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Lewis Ponds Suite|77126|||||Yes|Group, Suite|Reserved|Variation of published name|Reserved|||Bathurst Supersuite|31449||||||||||||||No|||Blevin, P. (GSNSW)|05-MAY-11||||Biotite muscovite granite|acid intrusive rock|||Y||17-JAN-23
Liamena Rhyolite|26687|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Permian||||eruption|Permian||||||||No|43355||||||||acid volcanic rock|||N||17-JAN-23
Lick Hole Formation|10376|Lick Hole Limestone|10377|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Byron Range Group|3235|||Lower Devonian||||deposition|Lower Devonian||||||||No|32583||||||Of Adamson (1957). See also Lick Hole Limestone, used from the 1960s to 1990s.|Fossiliferous well-bedded marine limestone with a pronounced rubbly appearance to spheroidal concretions to 10cm, and calcareous shale; fossils include corals, trilobites, brachiopods and molluscs|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lickhole Volcanic Group|37572|Lickhole Volcanics|22191|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Middle Cambrian||||eruption|Early Cambrian||||||||No|23309||||||Possibly meant to replace Lickhole Volcanics.|Pillowed and massive tholeiitic basalt, boninitic lavas and breccia, andesitic breccia; interflow chert, gabbro, dolerite, hyaloclastite, volcaniclastic sandstone|basic volcanic rock|||N||17-JAN-23
Licking Gully Granite|35614|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Ludlow||||intrusion|Ludlow||||||||No|50231||Pogson D.|17-OCT-00|||Boorowa 1:100 000 sheet area. Part of the Wyangala Batholith.|Coarse grained, massive-foliated, equigranular to sporadically porphyritic biotite granite. Minor porphyritic biotite microgranite with aplitic granite at margins; high K, medium to high Th and U response; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Licking Hole Creek Diorite|10378|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||Wyangala Suite|20700|Silurian|||inferred|intrusion|Silurian|||inferred|||||No|32590||||||Probably not related to Licking Hole Limestone Member, Lick Hole Limestone, Lick Hole Formation or Lickhole Volcanics. Shown as a part of the Wyangala Suite in the GSNSW state list 2012.|||||Y||17-JAN-23
Licount Mudstone|10379|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37987||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Liddell Coal Member|77624|Liddell Seam|10381|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Foybrook Formation|26561|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin|Banded bright and dull seam, sporadic calcite in cleates, sporadically separates into 3 splits; thin brown and grey mudstone bands and claystone|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lidsdale Coal|10383|Lidsdale coal|10385|||Yes|Member, phase|Formal|Variation of published name|Defined|Cullen Bullen Subgroup|24607|||Late Permian||||deposition|Late Permian|||||.5|5|NSW|Yes|39232|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83||Predominantly dull coal, thin claystone, carbonaceous and tuffaceous claystone and siltstone.|organic rich sedimentary rock|||N||17-JAN-23
Limbri Monzogranite|82544|Limbri Leucomonzogranite|41065|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Moonbi Supersuite|36465|Lower Triassic|245.4||inferred||Late Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Medium-grained, inequigranular to equigranular, leucocratic, biotite monzogranite.|acid intrusive rock|||Y|I-type|19-OCT-23
Limekilns Formation|25167|Limekilns Group|10421|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Emsian||||deposition|Pragian||||||510||No|42051||||||Unit reduced in rank from Group to Formation in Bathurst 1:250 000 sheet area, 1997.|Bedded sequence of monotonous grey siltstone with minor fine grained sandstone and fossiliferous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Limestone A|77060|Limestone A""|37397|||Yes|Member, phase|Informal|Variation of published name|Reserved|Boree Creek Formation|2330|||Wenlock||||deposition|Llandovery||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Informal unnamed unit. used in GSNSW Seamless geolgoy 2021.|Red coloured thinly bedded limestone, extremely fossiliferous|carbonate sedimentary rock|||N||17-JAN-23
Limestone B|77063|Limestone B""|37399|||Yes|Member, phase|Informal|Variation of published name|Reserved|Boree Creek Formation|2330|||Wenlock||||deposition|Llandovery||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Informal unnamed unit. used in GSNSW Seamless geolgoy 2021.|Consists of thin to moderately thick bedded, marly, partly dolomitic limestone.|carbonate sedimentary rock|||N||17-JAN-23
Lincount Mudstone|10430|Lincourt Mudstone|10431|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|43417||||||?Equivalent of Goonoo Goonoo Mudstone of Mory (1981).||siliciclastic sedimentary rock|||N||17-JAN-23
Linden Coal Member|77064|Linden seam|38301|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Leloma Formation|23722|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Craven Subgroup, Gloucester Basin. Used in GSNSW seamless geology dataset 2021.|A six metre thick coaly sequence including sandstone and mudstone.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Linden Hill Tonalite|82545|Linden Hill Monzogranite|76957|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Triassic|246||inferred||Middle Triassic|250||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Porphyritic biotite-hornblende tonalite; minor leucomonzogranite. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Linden seam|38301|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Gloucester Coal Measures|7452|||Late Permian|||||Late Permian||||||||No|23623||||||Briefly described. Of the Gloucester Basin Coal Measures. To be replaced by Linden Coal Member [GSNSW July-2012]|||||N||17-JAN-23
Lingula beds|10438|Lingula Beds|35867|||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|Mulga Downs Group|26063|||Frasnian|||inferred||Emsian|||inferred|||||No|41639||||||Used in, and updated from, GSNSW seamless geology dataset 2021.|Dark to grey-brown, fine- to medium-grained, hematitic tuffaceous quartzitic sandstone and siltstone, intercalated with brown fine- to medium-grained quartzite and rare bands of dark brown shale. Siltstone shows rhythmic sedimentation and slump bedding.|siliciclastic sedimentary rock|||N||17-JAN-23
Lintiss Vale Formation|26690|Lintiss Vale Beds|10445|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Farnell Group|6531|||Neoproterozoic||||deposition|Neoproterozoic||||||1200||No|30261|||||||Siltstone-sandstone; quartzite beds; and minor limestone/carbonates.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Linton Monzogranite|82546|||||Yes|Formation, beds|Formal|Other new published name|Described|||Copeton Suite|82398|Cisuralian||||magmatic crystallisation|Cisuralian|287.7|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Formalised  after Linton monzogranite of Jeon et al. (2012). Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse-grained, porphyritic and less commonly equigranular, biotite (+/- muscovite, +/- cordierite, +/- garnet) monzogranite and syenogranite; locally greisenous. S-type.|acid intrusive rock|||Y|S-type|01-SEP-23
Liscombe Pools Limestone|10454|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cudal Group|4974|||Llandovery||||deposition|Llandovery||||||10||No|32590|23214|||||Originally included as part of the Millambri Formation. Lithology description from GSNSW seamless geology 2023.|Grey, fine-grained, commonly silicified bioclastic limestone.|carbonate sedimentary rock|||N||28-SEP-23
Lismore Basalt|10455|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Lamington Volcanics|10120|||Early Miocene||||eruption|Early Miocene|23.9|.2|isotopic, K/Ar||50|150|NSW|Yes|43881|30604|Duggan M.B., Mason D.R.|20-OCT-76|Hawke, J.|08-DEC-76|Formerly of MacPherson Volcanics|Predominantly tholeiitic with occasional alkaline types of formations|basic volcanic rock|||N||27-APR-23
Lithgow Coal|10470|Lithgow coal|10474|||Yes|Formation, beds|Formal|Variation of published name|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian|||||2.6|9|NSW|Yes|38603|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83||Dull coal with minor bright layers; a few thin carbonaceous or tuffaceous claystone layers in the upper half.|organic rich sedimentary rock|||N||17-JAN-23
Little Bay Shale|29940|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Miocene||||deposition|Middle Miocene||||||27|NSW|Yes|22943||Pickett J.|07-DEC-95||15-MAY-96|Type section in borehole, NSWGS Little Bay DDH5.|Poorly consolidated shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Little Broken Hill Gabbro|31393|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cryogenian|827|9||intrusion|Cryogenian|827|9|isotopic, U/Pb|||||No|43572|||||||Tholeiitic dolerite dykes and gabbro.|basic intrusive rock|||Y||17-JAN-23
Little Brown Mountain Granite|23732|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mumbulla Suite|30468|Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||Lewis P.|21-DEC-90|||Was assigned to Gabo Suite in 1991, but reassigned to the Mumbulla Suite in 1994.|Fine granite|acid intrusive rock|||Y||17-JAN-23
Little Forest Granite|29591|Little Forest Aplite|10482|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Silurian||||intrusion|Silurian||||||||No|22679||||||Reserved as Little Forest Adamellite, then published once as Little Forest Aplite. Used in Bathurst 1:250 000 sheet area. Originally named Sunnyside Granodiorite. Intrudes the Adaminaby Group.|Biotite granite, leucogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Little Mount Porphyry|26693|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Carboniferous||||eruption|Carboniferous||||||||No|43405|||||||||||U||17-JAN-23
Little Plains Granite|29531|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Late Silurian||||intrusion|Wenlock|||||||NSW|No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area. Max Age: 425 Ma.|Undeformed medium grained hornblende-bearing biotite granodiorite with minor quartz monzonite. Minor aplite dykes.|acid intrusive rock|||Y||17-JAN-23
Little Popong Monzogranite|77009|Little Popong Adamellite|25996|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Dalgety Suite|5143|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021|Cordierite biotite monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Little Range Granite|35343|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Gooramma Suite|70027|Emsian||||intrusion|Pragian||||||||No|50231||Johnston A.|15-MAR-00|||BOOROWA 1:100 000 sheet area.|Grey, medium-grained, massive, weakly porphyritic to equigranular biotite-hornblende-augite-ferroan enstatite granite.|acid intrusive rock|||Y||17-JAN-23
Little Redbank Granodiorite|40986|Little Redbank Granite|10486|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Gunning Suite|31580|Pridoli||||intrusion|Ludlow||||||||No|50233||||||See also the informal Little Redbank Granite.  Of the Wyangala Batholith.|Blue-grey to dark grey, med- to coarse-gr., foliated, equigranular, hornblende-biotite granodiorite, minor aplite. Low K, Th and U radioelement response.|acid intrusive rock|||Y||06-SEP-23
Little Tank Formation|28684|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|42144|||||||||||N||17-JAN-23
Liverpool East Basalt|83205|Liverpool Range Volcanics|10505|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Liverpool Range Volcanic Complex|77259|||Rupelian|38.3|1|isotopic, K/Ar||Bartonian|42.7|1.7|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. Oldest ages near Murrurundi have experienced variable degrees of weathering. Bulk of the ages fall between 40 - 39 Ma.|Nepheline-bearing high Na-alkaline olivine basalt.|basic volcanic rock|||N||17-JAN-23
Liverpool Range Volcanic Complex|77259|Liverpool Range Volcanics|10505|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Rupelian|||inferred|eruption|Bartonian|||inferred|||||No|68004||||||Variation on current Liverpool Range Volcanics (unit no. 10505). The Liverpool Range Volcanic Complex appears to be preferred in GSNSW seamless geology dataset 2021. Now includesLiverpool East Basalt and LIverpool West Basalt.|||||N||17-JAN-23
Liverpool West Basalt|83206|Liverpool Range Volcanics|10505|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Liverpool Range Volcanic Complex|77259|||Rupelian|33.4|.4|isotopic, K/Ar||Priabonian|35.7|.7|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. 11 K-Ar dates from reasonably fresh samples obtained from the Coolabah Tops.|Olivine phyric tholeiitic to transitional basalt with common amygdales.|basic volcanic rock|||N||17-JAN-23
Livingstone Porphyry|10511|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|32820|36413|Richardson S.J.||Hawke, J.|20-FEB-79||Dacitic intrusive porphyry, minor xenoliths.|acid intrusive rock|||Y||17-JAN-23
Llanelly Suite|31599|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Llangothlin Monzogranite|76958|Llangothlin Adamellite|10519|||Yes|Formation, beds|Formal|Variation of published name|Described|||Llangothlin Suite|74008|Permian|253.1|1.5||intrusion|Permian||||||||No|69639||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards.|Porphyritic hornblende-biotite monzogranite|acid intrusive rock|||Y||27-SEP-23
Llangothlin Suite|74008|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Uralla Supersuite|67894|Middle Triassic|||inferred||Late Permian|||inferred|||||No|69639||Champion, Blevin and Bultitude,|05-DEC-07|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite, microgranite and minor syenogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Llanillo Silcrete|10520|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Early Eocene|||||Thanetian||||||||No|35187||||||A silcrete surface is usually an exhumed siliceous 'alteration' event rather than a sedimentation event. The Llanillo silcrete event (misspelt as "Llandillo" on the 1:250K Walgett geological map reference) can form in different parent materials.|||||N||17-JAN-23
Lobbs Hole Limestone|10527|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32583||||||||carbonate sedimentary rock|||N||17-JAN-23
Lobelia Limestone Member|10529|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Towanga Sandstone|27245|||Silurian||||deposition|Llandovery||||||||No|37727|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Lobs Hole Monzogranite|76959|Lobs Hole Adamellite|10532|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|15-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Monzogranite.|acid intrusive rock|||Y|I-type|29-SEP-23
Lochaber Greywacke|10540|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|Sandon Association|67995|||Mississippian||||deposition|Upper Devonian||||||||No|||||||See also Lochaber Greywackes - part of the "Sandon Association". Used in Surface Geology of Australia 1:1 million scale data sets.|Lithic wacke, slate, minor chert and jasper, rare metabasalt|medium-coarse grained siliciclastic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Lochinvar Formation|10550|Lochinvar formation|10555|||Yes|Formation, beds|Formal|Other new published name|Fully described|Dalwood Group|28493|||Sakmarian|||inferred, overlying unit|eruption|Sakmarian||||||835||No|43385||||||See also Lexicon.|Basalt, siltstone, sandstone.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Lock Lomond Granite|35507|Loch Lomond Granite|33411|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|||Eugowra Suite|31470|Lower Devonian||||intrusion|Lower Devonian||||||||No|24417||Wallace D.A.,Raymond O.|31-MAY-00|||Forbes 1:250 000 sheet area.|Hornblende biotite granite|acid intrusive rock|||Y||17-JAN-23
Lockhart Igneous Complex|39352|Lockhart Basic Intrusive Complex|25998|||Yes|Group, Suite|Formal|Variation of published name|Defined|||Thurralilly Suite|75928|Late Silurian|424.4|3.2|isotopic, U/Pb-Pb/Pb ion probe||Late Silurian|428.5|3.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|24116||||||A porphyritic leucocratic granite within the complex has been dated as 424.4 +/-3.2 Ma. A tonalite phase dated at 428.5+/- 3.1 Ma. See also Lockhart igneous complex, originally used in 1969.|Weakly to strongly foliated, equigranular to porphyritic, biotite granite, granodiorite, leucogranite, hornblende+/-pyroxene olivine dolerite to gabbro and enclave-rich granodiorite to quartz diorite.|basic intrusive rock|acid intrusive rock||Y||06-SEP-23
Lockyersleigh Granite|10578|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Lockyersleigh Suite|31604|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Formal name not intended.  Formalised on GOULBURN 1:100 000 Sheet 8828 (2002).  Previously Lockyersleigh Adamellite?|Medium-coarse grained, porphyritic, hornblende-biotite granite with equigranular, hornblende-biotite granodiorite marginal phase; monzodiorite and aplite dykes.|acid intrusive rock|||Y||17-JAN-23
Lockyersleigh Suite|31604|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Carboniferous|||||Carboniferous||||||||No|42726||||||To be included in the Oberon Supersuite on new GOULBURN 1:250 000 sheet (2008) - does not appear on provisional edition (June 2008).PP.|Granite|acid intrusive rock|||Y||17-JAN-23
Loddon Sandstone|34000|Loddon Member|22210|||Yes|Formation, beds|Formal|Resvd name published|Described|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian||||||||No|22578||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Loder Coal Member|27468|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Skeletar Formation|16963|||Permian||||deposition|Permian||||||||No|39346||||||Of Greta Coal Measures, Sydney Basin.|Coal|organic rich sedimentary rock|||N||17-JAN-23
London Bridge Formation|10603|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Ludlow||||deposition|Ludlow||||||||No|12185||||||Name appears to be used interchangably with London Bridge Limestone.|Calcareous shale, limestone, sandstone, tuff, porphyry, altered acid lavas.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Londonderry Clay|10608|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Miocene||||deposition|Oligocene|||||1|9|NSW|Yes|31056|42925|Gobert V.||Hawke, J.|27-AUG-77||Clay with patches of ferruginised consolidated sand.|regolith|||N||17-JAN-23
Long Beach Formation|23737|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Miocene||||deposition|Early Miocene||||||||No|42786||Nott J.|30-AUG-90|||DESC 94/27719.|||||N||17-JAN-23
Long Flat Volcanics|10619|Long Flat Porphyry|10617|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Bindook Group|69879|Glenbog Suite|7361|Pragian||||eruption|Lochkovian|411.5|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|Yes|12185|40276|||NSW SNSC|20-FEB-76|The ages of all dated units in the LFV are indistinguishable from each other and the "northern phase" of the Braidwood Granodiorite [ refID 66300, 2010].|Porphyritic rhyolite to dacite, ignimbrite; minor quartzose and volcaniclastic sandstone, siltstone.|acid volcanic rock|||N||17-JAN-23
Long Mountain Breccia Member|35394|||||Yes|Member, phase|Formal|Other new published name|Described|Bromley Hills Formation|35393|||Mississippian||||deposition|Middle Devonian||||||||No|61392||van Noord K.A.A.|05-APR-00|||Age unknown, at least younger than Early Devonian. Location: Warwick, Allora 1:100k sheet areas, 9341, 9241. Para-conglomerate/breccia with lesser sandstone. Within the Silverwood Group.|Polymictic megabreccia containing blocks of basaltic to andesitic volcanics and clastic sedimentary rocks||||N||20-JUL-23
Long Panel Tuff Member|10624|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Majuba Volcanics|27473|||Lochkovian||||eruption|Lochkovian||||||||No|9548||||||Lith desc from GSNSW seamless geology 2023.|Rhyolitic coarse lithic crystal tuff.||||N||10-SEP-23
Long Swamp Creek Formation|27292|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Minuma Range Group|11947|||Upper Devonian||||deposition|Upper Devonian||||||150|NSW|Yes|39028|40276|M.Owen|03-APR-81|Russell, T.|14-SEP-82|For use in the Araluen 1:100 000 sheet. Contains marine sediments and fish fauna. Not related to Long Swamp Formation.|Interbedded brown shale and quartzofeldspathic sandstone; sandstone-shale ratio increasing upwards|siliciclastic sedimentary rock|||N||17-JAN-23
Long Swamp Formation|24613|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian||||||40|NSW|Yes|39232|40806|C.Bembrick|19-JUN-80|||Western Coalfield of Sydney Basin. Formerly part of Charbon Sub-Group. Not related to Long Swamp Creek Formation.|Bioturbated claystone and siltstone, tuff, sandstone and thin discontinuous coal layers.|siliciclastic sedimentary rock|||N||02-SEP-23
Long Tunnel Metabasic Igneous Complex|23738|Long Tunnel Metabasic igneous complex|10628|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Late Silurian||||intrusion|Silurian|419.1|2.7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|37529|42313|H.Basden|23-SEP-81|||Minimum age from intrusion by the Kimo Diorite.|Metabasalt, meta-andesite, minor keratophyre, serpentinite and sediments.|metamorphosed basic igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Long Tunnel Metabasic Igneous Complex, Snowball Metabasic Igneous Complex, Valley View Metabasic Igneous Complex|42356|||||Yes|Supergroup|Informal|Variation of published name|Not recorded|||||Early Silurian|||||Early Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Metabasalt; minor meta-andesite, quartz keratophyre, volcaniclastic conglomerate and sandstone, metamicrogabbro, chert, siltstone|metamorphosed basic igneous rock|||Y||17-JAN-23
Longford Creek Siltstone Member|38203|Longford Creek Member|25176|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Lucernia Coal|10842|||Late Permian||||deposition|Late Permian||||||||No|23717||||||See also Longford Creek Member.||siliciclastic sedimentary rock|||N||17-JAN-23
Longreach Volcanics|36331|Longreach volcanics|10637|||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Fairy Group|26052|||Lochkovian|||biozone|eruption|Pridoli|||inferred, geological correlation|||900|NSW|No|50234||O'Reilly S.Y. 1972, Pogson D. 2001|20-AUG-01|||Brayton district, Goulburn 1:100 000 sheet area. See  79/03292 for description.|Amygdaloidal glomeroporphyritic basalt to andesite lava, minor siltstone,siliceous volcanic breccia and fine-grained vitric rhyolitic tuff. Rare limestone.|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Looanga Monzogranite|41066|Looanga Leucoadamellite|10645|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Moonbi Suite|29249|Lower Triassic|246.7||isotopic, Rb/Sr|intrusion|Late Permian||||||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly classed in the Moonbi Suite, now[?] part of the Looanga Suite within the Moonbi Supersuite. GSNSW Seamless geology 2023 places this unit in the Moonbi Suite, as does a 2017 publication, and shows an Early Triassic age, although another unit in the same Suite has Permian geochron.|Medium to coarse grained equigranular biotite - (hornblende) monzogranite.|acid intrusive rock|||Y|I-type|19-OCT-23
Lookdown Limestone|10646|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Bungonia Group|34589|||Ludlow||||deposition|Wenlock||||||270||No|40698||||||Replaced by Lookdown Limestone Member in the 1990s, and this name continued to be used until 2013. GSNSW reverted to Lookdown Limestone (basal Bungonia Group), overlain by Cardinal View Formation, for the Moss Vale 1:100k sheet area and explanatory notes published in 2016.|Fossiliferous limestone (dominantly biomicrudite and biomicrite) with small lenses of primary dolomite, spiculite and quartz rich anhydrite; coarsely recrystallised in places.|carbonate sedimentary rock|||N||17-JAN-23
Loomat Granite|26701|Loomat Granodiorite|33673|||Yes|Formation, beds|Formal|Variation of published name|Described|||Coolangubra Suite|31461|Lower Devonian||||intrusion|Llandovery||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G20|Highly to moderately magnetic, pale pinkish grey, very coarse grained, massive to weakly foliated biotite granite; prominent K-feldspar crystals to 40mm long|acid intrusive rock|||Y|I-type|17-JAN-23
Loomberah Limestone Member|10653|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Yarrimie Formation|20896|||Emsian||||deposition|Emsian||||||45|NSW|No|43400|43400|||||See also Loomberah Limestone.|Limestone rudite grading into bioclastic limestone.|carbonate sedimentary rock|||N||17-JAN-23
Looney Intrusive Complex|25692|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82||Diorite pervasively intruded by granite, diorite|intermediate intrusive rock|||Y||17-JAN-23
Lord Howe Volcanic Complex|83554|Lord Howe Island volcanics|10659|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Miocene|||inferred, geological correlation||Miocene|||inferred, geological correlation|||||No|73554||||||Used in GSNSW Seamless Geology 2021.|Basalt and basaltic breccia.|basic volcanic rock|||N||05-FEB-23
Lords Granite|31715|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|24417||Wyborn D., Raymond O.|22-SEP-97|||Parkes 1997 prelim. 1:100k.|Hornblende biotite granite, leucogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Lorne Forest Granodiorite|82510|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||The Brothers Suite|77628|Upper Triassic|||||Upper Triassic||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Porphyritic hornblende quartz monzonite and hornblende micromonzogranite.|intermediate intrusive rock|acid intrusive rock||Y|A-type|24-AUG-23
Lostock Sandstone Member|23741|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||930||No|40883||D.Lindley|14-JUN-83|||New member of the Flagstaff Sandstone.|In type area: Grey calcareous sandstone, grey mudstone, and an upper unit of thickly bedded medium to coarse-grained green and yellow-green lithic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Loughmore Formation|27183|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Coorabin Coal Measures|4633|||Late Permian||||deposition|Late Permian|||||7|18|NSW|Yes|35498|35498|Palese, G.W.|17-NOV-75|NSW SNSC|20-JUN-76||Pebble sandstone, siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Louie pluton|42360|||||Yes|Formation, beds|Informal|Variation of published name|Not recorded|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project. (from GSV mag. interp. map). GSV Code: G709|Magnetic intrusive; interpreted from geophysics data|acid intrusive rock|||Y||17-JAN-23
Louth Group|79635|||||Yes|Group, Suite|Invalid|Other new published name|Briefly described|||||Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|70821||||||Different (older) unit to Siluro-Devonian Louth Volcanics.|Siliciclastic metasedimentary rocks with intercalated mafic horizon flows, sills and dykes.|metasedimentary siliciclastic rock|basic volcanic rock||N||17-JAN-23
Louth Volcanics|78367|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian|400|||eruption|Late Silurian|422||inferred|||||No|69001||||||See also Louth volcanics. Contains a concordant 422 Ma zircon in volcanogenic sandstone which provides a maximum age for ?most/all of the Louth Volcanics.|Comprises volcanics, volcaniclastics, and dolerite.|igneous volcanic rock|||N||17-JAN-23
Louth volcanics|78374|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||eruption|Late Silurian|422||inferred|||||No|69002||||||See also Louth Volcanics. Represented by zones of both linear and irregular magnetic anomalies. Contains a concordant 422 Ma zircon in volcanogenic sandstone which provides a maximum age for ?most/all of the Louth volcanics.  Conodonts in limestone fragments suggest an Early Devonian age. Also used in GA 1:2.5m Bedrock Geology.|Basalt and basaltic andesites, volcaniclastic rocks and dolerite.|basic volcanic rock|basic intrusive rock||N||17-JAN-23
Lovetts Formation|10687|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Silurian||||deposition|Silurian|||||||NSW|Yes|29903||Bowman H.N. (After I. Gemuts)|14-SEP-72|||We hold a 'definition card' for this unit, but no type section or area is proposed.|Greenish slates, dark brown subgreywackes, quartz feldspar porphyry and tuffs.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Lowana Formation|10693|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Famennian||||deposition|Frasnian||||||800||No|43435|43435||||||Green-black, thinly bedded siltstone and mudstone with thin white tuffaceous beds|fine grained siliciclastic rock|||N||17-JAN-23
Lowlands Formation|10819|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Holocene||||deposition|Pleistocene|||||||NSW|No|35098|42925||||||||||N||17-JAN-23
Lowther Creek Granite|10824|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Redfern Suite|31535|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Loxton Sand|10825|Loxton Sands|10827|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wunghnu Group|20670|||Pliocene|||inferred, biostratigraphic correlation|deposition|Miocene|10|||||150||No|34418||||||Of Ludbrook (1957) in South Australia. Included in the original stratigraphic scheme for the Murray Group and over- and underlying units of Lawrence (1961). Overlay Bookpurnong Formation and the Group - and then was absorbed into the new Diapur Sandstone of Lawrence (1966). Diapur Sandstone was renamed Parilla Sand comprising the original rocks incorporated into it, namely Loxton Sand and Norwest Bend Fm./Parilla Sand. Often referred to as Loxton-Parilla Sands to describe the unit as it occurs across borders from Victoria to South Australia. Proposed that the Loxton Sand be redefined to include all of the Loxton-Parilla Sands in 2011(Refid 67179).|Quartz sandstone: well sorted, fine to medium grained; well bedded; abundant lag horizons containing shelly fossils, pebble beds, rounded ironstone fragments; some heavy mineral concentrations; dissected or remobilised strand lines.|regolith|||N||17-JAN-23
Loyola Limestone|10831|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lower Devonian||||deposition|Lower Devonian||||||||No|43461|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Lucan Complex|29592|Lucan|22222|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Silurian|||||Silurian||||||||No|43642||R.Close|06-JUN-77|||Originally reserved as Lucan by Close. Name lapsed 1983. Name proposed again for use in Bathurst area by Lachlan NGMA team.|Consists of granodiorite, porphyritic tonalite, rhyodacite.|acid intrusive rock|||Y|I-type|17-JAN-23
Lucas Creek Granite|26001|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|33780|45147||||||Leucogranite, monzogranite|acid intrusive rock|||Y||17-JAN-23
Lucernia Coal|10842|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Horseshoe Creek Subgroup|8506|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Apparently not in current use in NSW (May 2011, June 2012). Part of Wollombi Coal Measures.|A rich coal-bearing sequence comprising distinctive phases of coal and tuffaceous sandstone.|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Lucyvale Granite|10849|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Koetong Suite|9703|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G575|Pervasively altered, highly magnetic, deep pink, variably fine to coarse grained, A-type, biotite leucogranite|acid intrusive rock|||Y|A-type|17-JAN-23
Lumga Siltstone|26002|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Walters Range Group|24072|||Lower Devonian||||deposition|Lower Devonian|||||||NSW|No|41394|41394||||||Thin-bedded siltstone, interbedded quartz-rich medium-graimed arenite, minor flaggy arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Lumley Granite|10866|Lumley Adamellite|29224|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Arthursleigh Suite|31547|Emsian||||intrusion|Pragian||||||||No|42726||||||Formal name not originally intended.  Formalised on GOULBURN 1:100 000 Sheet 8828 (2002) as part of the Marulan Batholith.  Defined in 1976 as Lumley Adamellite (see Unit Definition for that stratigraphic name).|Grey, medium - coarse-grained, equigranular to weakly porphyritic biotite granite with rare hornblende. Low to high K, low to medium Th and U response. High magnetic susceptibility.|acid intrusive rock|||Y|I-type|17-JAN-23
Luton Formation|26003|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Tournaisian||||deposition|Tournaisian||||||560|NSW|No|43435|37987|||||Type locality is Slaughterhouse Creek near Gravesend, NSW.|Calcareous and arkosic arenite, siltstone and claystone with orthoconglomerate towards the base; rare limestone lenses and tuff; laminite extensively developed in the north|siliciclastic sedimentary rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Lynch mafic-ultramafic|82831|Lynch Igneous Complex|77344|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Forms dykes with a NNE axis of elongation. Used in GSNSW seamless geology dataset 2023|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||Y||13-JUN-23
Lynwood Granite|36776|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Lynwood Suite|69870|Pragian||||intrusion|Pragian||||||||No|50234||Dennis Pogson - NSW Geological Survey|07-FEB-02|||Goulburn 100K Sheet.  Part of the Marulan Batholith.||acid intrusive rock|||Y||17-JAN-23
Lynwood Suite|69870|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||Marulan Supersuite|69871||||||||||||||No|||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).|||||Y||17-JAN-23
Ma Ma Creek Member|10907|Ma-Ma Creek Sandstone Member|10913|||Yes|Member, phase|Formal|Variation of published name|Defined|Koukandowie Formation|9839|||Toarcian||||deposition|Pliensbachian||||||102|QLD|Yes|42951|42248|Wells A.T.|30-MAR-91|NSW SNSC|27-FEB-91|Card to convenor 1988. Defined in 91/27169. Type section in Qld. See also Ma Ma Creek Sandstone Member.|Flaggy lithic sandstones, shales and siltstones with minor fossil wood conglomerate bands and rare thin coal interbeds|siliciclastic sedimentary rock|organic rich sedimentary rock|oceanic backarc|N||17-JAN-23
MacDonald River Monzogranite|82565|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Bundarra Supersuite|67901|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse-grained biotite (+/- muscovite, +/- cordierite) monzogranite.|acid intrusive rock|||Y|S-type|01-AUG-23
MacPherson Volcanics|10928|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||||||eruption|||||||||No|43881|43881|||||Probably superseded by Lamington Volcanics.|||||N||17-JAN-23
Macclesfield Granite|35406|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Gooramma Suite|70027|Emsian||||intrusion|Pragian||||||||No|50231||Pogson D.|17-APR-00|||West of Boorowa, BOOROWA 1:100 000 and GOULBURN 1:250 000 sheet area.|Medium grained, massive, porphyritic, leucocratic granite; moderate-high magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Maccullochs Range beds|73750|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian|||||Late Silurian||||||||No|63398|||||||||||N||17-JAN-23
Macha Formation|81953|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Orange to white weathering, porphyritic to equigranular quartz trachyte to rhyolite lava deposits and intrusions with minor autobreccia.|acid volcanic rock|intermediate volcanic rock||N||17-JAN-23
Mackenzie Monzogranite|38266|MacKenzie Adamellite|10922|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Stanthorpe Suite|17277|Induan||||intrusion|Changhsingian|251.7|2.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|23811||||||To replace Mackenzie Adamellite, MacKenzie Adamellite. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Moonbi Supersuite - now of the Stanthorpe Suite, Stanthorpe Supersuite. See also MacKenzie Monzogranite.|Coarse grained to porphyritic hornblende-biotite leucogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Mackeys Creek Shale|27825|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cudal Group|4974|||Ludlow||||deposition|Ludlow||||||150||No|33116|23170|||||Parts of this unit were previously included in the Nora Formation and the Mandagery Cherts. 150m thick at type section|Quartzose shale, siltstone, minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mackunda Formation|10952|Mackunda Beds|10951|||Yes|Formation, beds|Formal|Variation of published name|Defined|Manuka Subgroup|11215|||Cenomanian||||deposition|Albian|||||30.5|275|QLD|No|44417|44417|||||Defined 1965 Neales River Group (see Strzelecki 1:250k map (1994) and explan notes (1995)).  Now defined as part of Manuka Subgroup in the Rolling Downs Group.|Pale grey-green, interbedded, glauconitic cross-bedded sand, silt, shale and calcareous shale. Local ferricrete capping.|siliciclastic sedimentary rock||intracratonic|N||17-JAN-23
Maclean Sandstone Member|10956|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Walloon Coal Measures|19303|||Oxfordian||||deposition|Oxfordian||||||50|NSW|No|30785|30785||||||Thick-bedded, crossbedded, feldspathic to lithic arenite with thin pebbly conglomeratic lenses and minor siltstone lenses; minor coal.|siliciclastic sedimentary rock|organic rich sedimentary rock|oceanic backarc|N||19-JUL-23
Macleay Group|10958|Macleay Formation|34751|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Permian||||deposition|Permian||||||1500||No|43385|||||||Upward fining beds of volcanogenic conglomerate, sandstone and siltstone, some limestone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Macquarie Park Sandstone|27826|Columbine Sandstone|4378|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Black Rock Subgroup|28374|||Famennian||||deposition|Famennian||||||160|NSW|No|43512|43512|||||Defined 1963. Formerly Columbine Sandstone. Includes Coffee Hill Member.|Consists of massive to bedded, fint to medium-grained quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Macquarie River basalts|35078|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Neogene||||eruption|Cenozoic||||||||No|23043||||||||basic volcanic rock|||N||17-JAN-23
Macqueen Member|41630|Macqueen Formation|10964|||Yes|Member, phase|Formal|Variation of published name|Described|Dangarfield Formation|25714|||Tournaisian||||deposition|Visean||||||64||No|44244||||||Basal unit of the Dangarfield Formation.|Green lithic sandstone, siltstone, calcareous skeletal mudstone, and wackestone, and contains poorly preserved brachiopods, bivalves and gastropods as well as rare conodonts, fish teeth and plates.||||N||17-JAN-23
Macs Tank Ultramafic|76023|Macs Tank Ultramafic Complex|74924|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Paleozoic|||||Paleozoic||||||||No|63793|66623|||||Named  by Buckley (2002); formerly  Macs Tank Serpentinite (Crawford et al. 1997); subsequently Macs Tank Ultramafic Complex (Sharp 2004); redefined in 2010.  A 3 x 1.5 km outcrop in Mutawintji National Park. Relatively undeformed: probably intruded along the Mount Wright Fault after the Delamerian Orogeny. Possibly correlated with Cliffs Tank Complex.|Serpentinised pyroxene-olivine ultramafic; occasional small inclusions/intrusions of dolerite.|metamorphosed ultramafic rock|basic intrusive rock||Y||17-JAN-23
Madron Formation|34756|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|22893|||||||||||N||17-JAN-23
Maffra Monzogranite|77010|Maffra Adamellite|26005|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Delegate Suite|31500|Lower Devonian||||intrusion|Lower Devonian|412.6|4.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Age: 412-413 Ma (Lewis et al. 1994). I -type. See RefID 67060 p505. Published in GSNSW seamless geology.|Fine-grained, muscovite-biotite monzogranite, pink-green on fresh surfaces|acid intrusive rock|||Y|I-type|26-SEP-23
Magdala Basalt|39629|Magdala Volcanics|36738|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Cambrian|||inferred, biostratigraphic correlation|eruption|Early Cambrian|515||inferred, biostratigraphic correlation||1000|1500||No|24087||||||Replaced Magdala Volcanics ~2002 - 2008, then Volcanics reinstated? Basalt appears to be preferred by 2018.|Tholeiitic to andesitic basalt, some undeformed pillow lava; interlayered volcanic sediments including volcanogenic sandstone, black and red mudstone, shale and chert; sub-greenschist metamorphism.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Magistrate Volcanic Member|36824|Magistrate Volcanics|33386|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Emmaville Volcanics|6143|||Late Permian|252.5|1.5||eruption|Permian||||||450||No|23859|23859|||||Type Locality: 403900E, 674900N.||acid volcanic rock||continental margin arc|N||10-AUG-23
Mailman Gap Member|35610|Mailman Gap Conglomerate Member|26717|||Yes|Member, phase|Formal|Variation of published name|Described|Rankin Formation|15840|||Upper Devonian||||deposition|Upper Devonian||||||599||No|61964||Meakin S.|13-JUN-00|||Part of the Cocoparra Group.|Coarse-grained quartz-lithic sandstone with increasing pebble content downwards; basal sequence of polymictic pebble-cobble orthoconglomerate grading into paraconglomerates; cross-bedded.|siliciclastic sedimentary rock|||N||17-JAN-23
Main Camp Syenite|11025|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Triassic||||intrusion|Triassic|||||||NSW|No|33766|33476|||||See also misspelt or subset unit Main Camp Creek Gabbro.|Complex consisting of trachyte, syenite, diorite, dolerite and gabbro.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Main Range Volcanics|11031|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Early Miocene|19.4||isotopic, K/Ar|eruption|Chattian|25||isotopic, K/Ar||||QLD|No|44782|38205|||||Shown as Paleogene on 2012 1:2 million State map.|Alkali-olivine basalt, minor tuff, sandstone, mudstone.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Maitland Group|11039|Upper Marine Series|18921|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Roadian|||||Kungurian||||||2000|NSW|No|39811|43477|||||Northern Coalfield. See also Lexicon. Transgresses over the Greta Coal Measures.|Siltstone, claystone, fine- to coarse-grained sandstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Majors Creek Formation|26007|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Serpukhovian||||deposition|Visean|||||||NSW|No|34293|34293||||||Lithic sandstone, cherty mudstone|siliciclastic sedimentary rock||forearc|N||29-AUG-23
Majuba Volcanics|27473|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kopyje Group|28654|||Pragian||||eruption|Lochkovian||||||2000||No|35219||||||Kopyje Shelf.|In the north: feldspar +/- quartz phyric, locally flow-banded rhyolitic to dacitic lavas. In the south: dacitic lava, moderately crystal-rich rhyolite, poorly sorted often pumiceous volcaniclastic sandstone and siltstone.|acid volcanic rock|||N|I-type|04-AUG-23
Majurgong Formation|11044|Murrumbidgee Series|28837|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrumbidgee Group|27854|||Emsian||||deposition|Emsian||||||120||No|43430||||||Overlain by the Spirifer Yassensis Limestone Member of the Taemas Limestone.|Red-brown-maroon, thinly bedded-massive shale,fine-very fine grained quartz rich sandstone and less common calcareous siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Malabar Formation|11055|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian|||||||NSW|No|29942|40805||||||Sandstone, siltstone, conglomerate, four named coal seams; minor claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Malachis Hill Formation|11059|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cabonne Group|21409|||Hirnantian||||deposition|Katian||||||550||No|43516||||||Was proposed to be included in Cheesemans Creek Formation (Packham et al., 2003) [?], but still in use in 2007, 2012, 2013, 2016...? Southern Molong¿Wellington Volcanic Belt. Said to be underlain by Cargo Volcanics (which may have been replaced by Fairbridge Volcanics?). GSNSW appears to have had the intention to subsume this unit into the Oakdale Formation (northern Molong-Wellington Volcanic Belt), in 2011, but are still using the name in 2016.|Consists of turbiditic siltstone and qtz-rich sandstone.|siliciclastic sedimentary rock|||N||11-SEP-23
Malara Quartz Monzodiorite|80701|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lower Triassic|||||Lopingian|251.2|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Published in: C. J. Bryant, 2017, A compendium of granites of the southern New England Orogen, eastern Australia (Refid: 71628). A full description appears in chapter 19 pp95-p96. Indexing pending.|Pale to medium grey, fine and locally medium-grained, moderately to slightly porphyritic hornblende-biotite and biotite quartz monzodiorite.|intermediate intrusive rock|||Y||22-AUG-23
Maldon Shale|11085|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35690||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Mallee Tank Group|27474|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Lower Devonian|||||Late Silurian|||||||NSW|No|43385|46032|||||See also Amphitheatre Group, Kopyje Group. See also Lexicon.|||||N||17-JAN-23
Malongulli Formation|11126|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Upper Ordovician|||biozone|deposition|Upper Ordovician||||||462||No|44086|23214|||||Age: ~470-480 Ma from 1995 reference. More recently [2017] stated to be Katian [Late Ordovician] from graptolite fauna. Molong-Wellington Volcanic Belt.|Calcareous and feldspathic siltstone, limestone, arenite, conglomerate, mudstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||11-SEP-23
Mammy Johnsons Coal Member|82564|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Mammy Johnsons Formation|23757|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Thin coal member with numerous stone bands.|organic rich sedimentary rock|||N||17-JAN-23
Mammy Johnsons Formation|23757|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Dewrang Group|24917|||Lopingian|||inferred|deposition|Lopingian|||inferred|||300||No|40872|44244|M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough. Used in GSNSW seamless geology dataset 2021.|Massive and thickly bedded lithic sandstone, pebble conglomerate and coarse grained sandstone stringers, horizons of laminated dark grey mudstone. Discontinuous thick coals and minor claystones after airfall tuffs|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock|extensional continental backarc|N||17-JAN-23
Manar Ignimbrite Member|77429|Manar Porphyry|27476|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Long Flat Volcanics|10619|||Pragian||||intrusion|Lochkovian|413|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66300||||||Croppies Gunyah Ignimbrite Member|Green to grey, fine- to medium-grained, mainly crystal-rich and highly fragmented, densely welded rhyolitic ignimbrite; variable lithic clast content.|acid volcanic rock|||N||17-JAN-23
Mandagery Formation|31704|Mandagery Sandstone|11157|||Yes|Formation, beds|Formal|Variation of published name|Defined|Nangar Subgroup|13778|||Famennian||||deposition|Frasnian||||||900||No|43782||||||Bathurst 1997 1:250 000 sheet. Parkes 1997 prelim. 1:100k. (Conolly, 1969a). Contains the famous Canowindra fish fossils.  In the Parkes Syncline. Part of the Hervey Group. Nangar Subgroup not used on the latest Goulburn 1:250k.|White, thick bedded, coarse-gr. pebbly to conglom., quartzose to lithic-quartz sst; overlain by massive, thick bedded, medium- to fine-gr. quartzose sst; thinly bedded planar-laminated, flaggy, med.- to fine-gr. sst + minor red siltstone.|siliciclastic sedimentary rock|||N||11-SEP-23
Mandari Granodiorite|11159|Mandari granodiorite|23758|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Arthursleigh Suite|31547|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|37986|37986||||||Cream to pink to pale green, coarse-grained, inequigranular to strongly porphyritic biotite¿hornblende granite. Finer-grained, more mafic granite occurs at the northeastern margin|acid intrusive rock|||Y|I-type|17-JAN-23
Mandaring Formation|81817|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73457||Trigg, S. (GSNSW)|23-JAN-20|||Named for 'Mandaring' is the name of the property on which the unit almost entirely occurs. The access road to the property also bears the same name. The nearest town is Holbrook. The Mandaring Formation is named and described in a GSNSW report (Geological mapping in parts of the East Riverina Project area in 2018, S.J. Trigg) that is in the final stage of editing and should be in the GSNSW DIGS and available to the public in the first half of this year. Also used in GSNSW seamless geology dataset 2021.|Off-white to red-brown medium-grained quartzose sandstone with pebbly sandstone and pebble- to cobble-conglomerate locally. Recessive thinly-interbedded fine-grained sandstone and siltstone units.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mandowa Mudstone|26010|||||Yes|Formation, beds|Formal|Other new published name|Defined|Parry Group|14916|||Famennian||||deposition|Famennian||||||650|NSW|No|43406|37987|||||See also Goonoo Goonoo Mudstone. See also Mandowa Formation.|Grey, thinly bedded, laminated and massive mudstone with subordinate thin siltstone and fine sandstone; scattered limestone bodies; andesite.|fine grained siliciclastic rock|siliciclastic sedimentary rock|forearc|N||17-JAN-23
Mandurama Ponds Granodiorite|22253|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Silurian||||intrusion|Silurian||||||||No|22679||Henderson T. Wyborn D.|19-APR-93|||Blayney 1:100 000 sheet. Originally named Sunnyside Granodiorite. Intrudes the Adaminaby Group. Intruded by Roseburg and Little Forest Granite.|I-type granodiorite. Hornblende alllanite biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Manfred Sandstone|22254|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mulga Downs Group|26063|||Upper Devonian||||deposition|Middle Devonian||||||||No|44188|22893|Cameron R.|15-FEB-95|||Pooncarie 1:250 000 geol. sheet.|Medium- to coarse-grained quartzitic arenite with quartzite in the basal section; sporadic quartz pebbles and cobbles to 4.5 cm; fines upsequence to fine- to medium-grained arenite to sublitharenite|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Manilla Group|11183|||||Yes|Group, Suite|Formal|Unknown or process pending|Described||||||||||||||||||No|43385|||||||||||N||17-JAN-23
Mann River Leucogranite|80702|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Dandahra Creek Suite|80727|Middle Triassic|||inferred||Ladinian|239.1|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628|||||||Pinkish-brown porphyritic, leucomonzogranite; fine-grained, highly porphyritic, marginal variant.|acid intrusive rock|||Y|A-type|25-AUG-23
Manna Conglomerate|26011|Wamboyne Conglomerate|19347|||Yes|Formation, beds|Formal|Other new published name|Defined|Ootha Group|14623|||Lower Devonian||||deposition|Late Silurian||||||5000|NSW|Yes|35503|35503|Kemezys K.J.|15-JAN-76|Hawke, J.|12-OCT-76|Initially considered a southerly extension of Derriwong Group, but now used, on the Forbes sheet, as the base of the Ootha Group, while Edols Conglomerate is used in the Derriwong Group. First called "Womboyne Conglomerate" (Brunker 1972); previously included as part of "Condobolin Formation " (Connolly 1965). Also considered part of Edols Conglomerate (Scott in Lyons and Wallace 1999). Max.thickness:1000m (estimated).|Pebble conglomerate with quartz and quartzite clasts, massive medium-grained quartz and lithic quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mannering Park Tuff Member|25202|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Catherine Hill Bay Formation|3791|||Lopingian||||eruption|Lopingian||||||||No|43447||||||Formerly of Catherine Hill Bay Formation, Moon Island Beach Subgroup, Newcastle Coal Measures.This Member was dropped, but reinstated ~2015.Updated from GSNSW seamless geology dataset 2021.|Tuff, siltstone and claystone.|igneous volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Manning Group|11186|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Cisuralian|291|||deposition|Cisuralian|294|||||5000||No|43385|22612||||||Diamictite, conglomerate, sandstone, mudstone, felsic and intermediate volcanics and limestone. Deposited in high energy, deep-marine sedimentary conditions (flysch sedimentation).|siliciclastic sedimentary rock|metamorphosed igneous rock|accretionary wedge|N||17-JAN-23
Mannus Creek Suite|31616|Mannus Creek Granite|11192|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Wenlock||||||||No|42726||||||Chappell et al., in an AMIRA Report in 1999, combined the Munderoo Granodiorite, the Bogandyera Granite and the Prison Farm Granodiorite into the Bogandyera Granite, and renamed the  (parent) Mannus Creek Suite as the Bogandyera Suite, but these changes were not reflected in publicly available documents, and have evidently not been supported by GSNSW work, given that they retained all 3 units as part of the Mannus Creek Suite in 2013.|I-type, felsic, unfractionated granite and granodiorite|acid intrusive rock|||Y|I-type|21-AUG-23
Manooka Limestone Member|26012|Manooka Limestone|11195|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|33063|33063|||||16m thick at type section. For lithology description see Semeniuk (1973a,b). Lithology description from GSNSW seamless geology 2023.|Light grey to brown, Intercalated, thick-bedded to massive, grainstone; dark grey, thin- to thick-bedded packstone, skeletal wackstone and burrowed lime mudstone.|carbonate sedimentary rock|||N||28-SEP-23
Manoora Granite|11196|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Mantappa Dolomite|27477|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Farnell Group|6531|||Neoproterozoic||||deposition|Neoproterozoic||||||2||No|30261|||||||Brown to buff, finely laminated dolomite; Comprises a 2m thick finely laminated buff dolomite; Cap dolomite.|carbonate sedimentary rock|||N||17-JAN-23
Manuka Farm Porphyritic Microgranodiorite|82567|Manuka Farm Porphyritic Microtonalite|11212|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Suite|18973|Lower Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Texturally heterogeneous,fine- to medium-grained, commonly porphyritic possibly quartz-poor granodiorite - quartz monzodiorite, ranging from pyroxene-dominant to hornblende-biotite dominant ferromagnesian assemblages.|acid intrusive rock|||Y|I-type|19-OCT-23
Manuka Subgroup|11215|||||Yes|Subgroup|Formal|Variation of published name|Briefly described|Rolling Downs Group|16267|||Lower Cretaceous|||||Lower Cretaceous||||||||No|29591|||||||||||N||17-JAN-23
Maradana Shale|11229|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Gregra Group|7789|||Lochkovian||||deposition|Lochkovian||||||300||No|43461|23170|||||Previously formed the upper part of Manilda Beds. First mapped as "Murrabah Shale" by Maggs (1963); renamed by Pickett (1982) to correlate with Maradana Shale of Savage (1969).  Est. thickness at Wansey Creek: 450m.|Olive green to dark greyish brown coloured, laminated, calcareous shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Maramingo Granite|11232|Maramingo Adamellite|33674|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|30574||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G31|Granite|acid intrusive rock|||Y|I-type|17-JAN-23
Marangulla Syenite|29522|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Ordovician||||intrusion|Upper Ordovician|||||||NSW|No|24268||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area Intrudes the Weemalla Formation|Syenite.|intermediate intrusive rock|||Y||11-SEP-23
Marble Arch Limestone Member|26013|||||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock|||||||NSW|Yes|40276|40276|Owen M.||Russell, T.|14-SEP-82||Strongly recrystallised to coarse sporite, tending to marble. Locally a saccharoidal texture and cleavage developed. Alteration is due to thermal metamorphism by the Braidwood Granodiorite, which crops out within 50 m of the limestone.|carbonate sedimentary rock|metasedimentary carbonate rock||N||17-JAN-23
Marburg Subgroup|11255|Marburg Formation|11252|||Yes|Subgroup|Formal|Variation of published name|Redefined|Bundamba Group|2963|||Bathonian|||biozone|deposition|Pliensbachian|||biozone|||1200|QLD|Yes|42951|42248|Wells A.T.|01-MAR-88|NSW SNSC|27-FEB-91|Formerly referred to as the Marburg sequence ('formation', 'sandstone').|Fine to coarse-grained, thin- to very thick- bedded, crossbedded, quartzose to lithofeldspathic sandstone, interbedded with polymictic pebble and minor cobble conglomerate, siltstone and claystone; minor coal and basalt, fossil wood ferruginous oolite|siliciclastic sedimentary rock|||N||17-JAN-23
Marengo Plain Granodiorite Phase|82569|Marengo Plain Granodiorite|82568|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Sheep Station Creek Complex|28997|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Not related to Silurian VIC Marengo Granodiorite.|Heterogenous, equigranular to porphyritic, biotite (+/- amphibole) monzogranite; locally contains abundant enclaves.|acid intrusive rock|||Y|I-type|17-JAN-23
Mares Forest Volcanics|70244|Wombeyan Volcanics""|79221|||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Fairy Group|26052|||Lochkovian||||eruption|Lochkovian||||||||No|64238||Sherwin, L. (GSNSW)|07-APR-06|||To be applied to a series of volcanics formerly part of the Bindook Volcanic Complex. Not related to obsolete "Mares Forest Formation".|Rhyolitic volcaniclastics with minor discontinuous lenses of massive, poorly sorted volcanogenic pebbly sandstone; 2 subunits - a rhyolitic ignimbrite (with pumice shards), and polymictic volcaniclastic rock with angular fragments.|acid volcanic rock|||N||11-SEP-23
Margules Group|69897|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Hirnantian|||inferred||Katian|||inferred|||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006). Proposed in 2018 that New Country Sandstone, Akuna Mudstone, Gungoandra Siltstone and Willandra Sandstone be ressigned from Bendoc Group to this Group, but Akuna Mudstone remains in Bendoc Group in GSNSW seamless Greology 2021, and it is unclear what GSV has done about the New Country Sandstone.|Grey to yellowish-brown, lithic-quartz and quartzose sandstone; black, buff, greenish laminated to medium-bedded siltstone and lesser mudstone; olive, grey and buff, laminated to medium-bedded siltstone, minor mudstone and quartzose sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Marker Two Coal Member|77422|||||Yes|Member, phase|Informal|Reserved|Reserved|Dog Trap Creek Formation|23550|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Informal name. Gloucester Basin.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Marks Point Conglomerate|11328|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41463|||||||||||N||17-JAN-23
Markwell Coal|77101|Markwell Coal Measures|11329|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Permian|||inferred|deposition|Permian|||inferred|||||No|||Greenfield, J. (GSNSW)|11-JUL-12|||Because these beds are thin and not well exposed they have been mapped only in the vicinity of Burdekins Gap; elsewhere on the Bulahdelah 1:100 000 sheet, they are included with the Bulahdelah Formation. Myall Syncline. Used in GSNSW seamless geology dataset 2021.|Pebble to boulder polymictic conglomerate (clasts include porphyritic black "pitchstone", acid volcanics, sandstone and mudstone), pebbly and lithic cross bedded sandstone, shale, carbonaceous shale and impure coal seams|siliciclastic sedimentary rock|organic rich sedimentary rock||N||02-SEP-23
Markwell Coal Measures|11329|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Permian||||deposition|Permian||||||18||No|43447|44244|||||Because these beds are thin and not well exposed they have been mapped only in the vicinity of Burdekins Gap; elsewhere on the Bulahdelah 1:100 000 sheet, they are included with the Bulahdelah Formation. To be replaced by Markwell Coal [GSNSW July-2012]|Pebble to boulder conglomerate with clasts of felsic volcanics; lenses of crossbedded sandstone and lenses of coal|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Marobee Conglomerate|23764|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Ordovician||||deposition|Ordovician||||||500|NSW|No|41394|41394|G.MacRae|05-OCT-82|||Of Trigg (1987) - for a conglomerate sequence within the former Tallebung Group. Previously included in the Boothumble beds of Brunker (1973).|Quartzite, mudstone, siltstone, conglomerate.||||N||21-JUL-23
Marooba Formation|23766|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Winduck Group|25683|||Emsian||||deposition|Emsian||||||750||No|40913||E.Scheibner|23-JUL-80|||Used in GSNSW seamless geology dataset 2021.|Fine- to medium-grained sublitharenite to quartz arenite. Massive, cross-bedded in lower part.||||N||21-JUL-23
Maroota Sand|39353|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|24117||||||Sydney Basin.|||||N||17-JAN-23
Marra Creek Formation|29532|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Holocene|.006||luminescence|deposition|Holocene|||||||NSW|No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area|Unconsolidated pale to dark grey silt, clay, sandy silt, clayey silt; carbonate nodules common; boulders and pebbles along channels; cracking soils common.|regolith|||N||17-JAN-23
Marrangaroo Conglomerate|11364|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Cullen Bullen Subgroup|24607|||Late Permian||||deposition|Late Permian||||||4|NSW|Yes|43317|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83|Formerly of Lithgow Coal Measures.|Fluvial, pebbly sandstone to cobble conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Marrar Dyke|22270|||||Yes|Formation, beds|Invalid|Resvd name published|Described|||||Devonian||||intrusion|Devonian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Does not crop out.  Very uncertain age.|Monzogabbro|basic intrusive rock|||Y||17-JAN-23
Marrawarra Rhyolite Member|36827|Marrawarra Rhyolite|35762|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian||||eruption|Permian||||||||No|23859|23859|||||Type Locality: 407000E, 6740000N||acid volcanic rock|||N||17-JAN-23
Marriangaah Siltstone|11375|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32672||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Marsden Park breccia|11376|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40263|||||||||||N||17-JAN-23
Martindale Mudstone Member|82570|Martindale Mudstone|11383|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Tangaratta Formation|17776|||Tournaisian|||inferred||Tournaisian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Siltstone, lithic sandstone, mudstone, minor conglomerate horizons and rare crinoidal and oolitic limestone interbeds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||08-SEP-23
Martins Creek Ignimbrite Member|11385|Martins Creek Ignimbrite|11386|||Yes|Member, phase|Formal|Variation of published name|Fully described|Isismurra Formation|8801|||Visean|329|9||intrusion|Visean|332|2.2|isotopic, U/Pb-Pb/Pb ion probe|||45||No|31228||||||Previously included in the Newtown Formation. Also stated to be of Isismurra Formation where it extends northwestwards as one of the highest ignimbrites in the Isismurra Formation. Age: ~331Ma.|Blue-grey, red-mottled  welded andesitic ignimbrite with minor interbeds of beige to grey dacitic ignimbrite.|intermediate volcanic rock|acid volcanic rock|forearc|N||02-JUN-23
Martinsburg Slate|37317|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned||||||||||||||||||No|24011|||||||||||N||17-JAN-23
Marulan Granite|11390|Marulan Adamellite|11389|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Arthursleigh Suite|31547|Lochkovian||||intrusion|Pridoli|416.7|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|29989||||||Of the Marulan Batholith.  Part of the Arthursleigh Suite - Marulan Supersuite.|Pinkish-grey, medium-grained, equigranular to strongly porphyritic, hornblende-biotite granite. High magnetic response.|acid intrusive rock|||Y|I-type|17-JAN-23
Marulan Supersuite|69871|Marulan Suite|36109|||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Lochkovian|412.6|2.2|isotopic, U/Pb-Pb/Pb ion probe||Lochkovian|414.8|2.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|68592||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006) and will contain the Lynwood, Arthursleigh, Roslyn and Bogungra Suites [12/05 PP].  Marulan Suite is here upgraded to Supersuite status (per email from O.Thomas 31/1/06). PP.|Includes porphyritic granite.|acid intrusive rock|||Y||17-JAN-23
Maryland Granite|11417|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Maryland Suite|73906|Middle Triassic|241||isotopic, Rb/Sr|intrusion|Lopingian|252.4|1.5|isotopic, Rb/Sr||||NSW|No|44625|33476|||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly of the Moonbi Supersuite.  Part of the Herries Supersuite. See also the mineralogically distinct Maryland River Quartz Monzodiorite. See also Maryland granite.|Fine to medium-grained, equigranular to slightly porphyritic, greyish-blue hornblende-biotite monzogranite.|acid intrusive rock||continental margin arc|Y|I-type|10-AUG-23
Maryland Granodiorite|82571|Maryland Granite|11417|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Triassic|252.4|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|252.4|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|Medium-grey, medium-grained, uneven-grained to slightly porphyritic hornblende-biotite granodiorite to monzogranite; mafic inclusions are common. I-type.|acid intrusive rock|||Y|I-type|24-AUG-23
Maryland River Quartz Monzodiorite|74782|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Late Permian||||intrusion|Late Permian|||inferred, intrusive relationship|||||No|61789||||||Mineralogically different from Maryland Granite. Older than Undercliffe Falls Monzogranite. Intrudes Permian felsic volcanics.|Medium-grained, seriate, biotite quartz monzonite - quartz diorite.|intermediate intrusive rock|||Y||17-JAN-23
Marylebone Dolerite|11419|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||intrusion|||||||||No|33061||||||||basic intrusive rock|||Y||17-JAN-23
Matong Granodiorite|25216|Matong Granite|23771|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Dalgety Suite|5143|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|41905|41905|||||See also the informal Matong Granite.|Cordierite biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Matthews Gap Dacitic Tuff Member|26020|Matthews Gap Dacitic Tuff|34104|||Yes|Member, phase|Formal|Variation of published name|Defined|Pokolbin Hills Volcanics|26106|||Kasimovian||||magmatic crystallisation|Moscovian|309|3|isotopic, U/Pb-Pb/Pb conventional||||NSW|No|29915|29915|||||Age: 309+/-3 Ma. See also Matthews Gap Dacite Tuff Member. Said to be of Patterson Volcanics in 2015 paper.|Dacitic tuff.|acid volcanic rock|||N||14-AUG-23
Maude granite|76034|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Appear to be informal unit based entirely on geophysics, although there may be some data from water bores?  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943. Other uses of Maude are unrelated to this unit.|Inferred as S-type granitic rocks.|acid intrusive rock|||Y|S-type|10-SEP-23
Maules Creek Formation|11472|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bellata Group|30037|||Kungurian||||deposition|Artinskian||||||100|NSW|Yes|36940|43194|Geological Survey of New South Wales|04-AUG-77|||Parent added from Geol Surv NSW Mem Geol 12. Coals have moderate gas content, reasonable permeabilities and more than 96% methane. Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|Basal carbonaceous claystone, pelletoidal clay sandstone, minor coal, passing upwards into upward-fining cycles of sandstone, thinly bedded siltstone / sandstone and coal. Conglomerate dominant towards top|fine grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
May Farm Mudstone Member|11488|||||Yes|Member, phase|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41542||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Maybole Volcanic Suite|69815|||||Yes|Group, Suite|Invalid|Resvd name published|Defined|||||Rupelian|31.3|5.5|fission track|eruption|Lutetian|43.9|.6|fission track|||||No|63347|63347|Dawson, M.  (DPI, NSW)|15-NOV-05|||For Sheet 9238; nearest town is Glen Innes. Either this name, or the Maybole Volcanics name is invalid. Related units should not have the same name.|Lithologies include mafic flows, tuffs, intrusions and volcaniclastic rocks of alkaline affinity.||||N||27-APR-23
Maybole Volcanics|69817|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Rupelian|32|||eruption|Lutetian|40|||||||No|63347|63347|Dawson, M. (DPI, NSW)|15-NOV-05|||For Sheet 9238; nearest town is Glen Innes. Max.thickness: >400m; 100m in type area. Either this name, or the Maybole Volcanic Suite name is invalid. Related units should not have the same name.|Alkali olivine and transit. basalt flows and plugs and red and white sapphire-bearing tuffs and minor corundum-bearing volcaniclastic rocks.|basic volcanic rock|||N||16-FEB-23
Mayers Flat Limestone Member|23774|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Wallanbah Formation|25682|||Mississippian||||deposition|Mississippian||||||20|NSW|No|36057|36057|D.T.Crane, J.W.Hunt|10-FEB-76|||||carbonate sedimentary rock|||N||17-JAN-23
Mayfair Granite|23775|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||Wangarabell Suite|31571|Llandovery||||intrusion|Ashgill||||||||No|42726|22638|Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD as Mayfair Granite in Chappell et al (1991), but formal name not intended.||acid intrusive rock|||Y||17-JAN-23
McCabes Granite|22284|Woodlands Granite|20510|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Wallundry Suite|29582|Llandovery||||intrusion|Ashgill||||||||No|22638|22638|Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Dated 431 +/- 4 Ma by Rb-Sr. Previously "Woodlands Granite"||acid intrusive rock|||Y||17-JAN-23
McCarty Limestone|37576|McCarty Limestone Member|11527|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Cowombat Siltstone|25864|||Llandovery||||deposition|Llandovery||||||||No|23309||||||See also McCarty Limestone Member.  Of Cowombat Siltstone?|Limestone|carbonate sedimentary rock|||N||17-JAN-23
McDougalls Well Conglomerate|11538|McDougalls Wall Conglomerate|11537|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yancowinna Subgroup|20809|||Neoproterozoic||||deposition|Cryogenian||||||30||No|30261||||||See also McDougalls Wall Conglomerate.|Polymictic paraconglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
McGraths Hump Metabasalt|36964|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Pennsylvanian||||eruption|Cisuralian||||||1900||No|23720||||||Dorrigo-Coffs Harbour 1:250 000 Sheet|Metabasaltic pillow lavas and massive flows, dolerite intrusives and minor siltstone and diamictite|metamorphosed basic igneous rock|basic intrusive rock|extensional continental backarc|N||15-MAR-23
McInnes Formation|11542|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pennsylvanian||||deposition|Serpukhovian||||||1500||No|43447|22601||||||Lithic arenite with minor interbeds of conglomerate, breccia and mudstone|siliciclastic sedimentary rock||forearc|N||17-JAN-23
McKeahnie Monzogranite|76994|McKeahnie Adamellite|23779|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||McKeahnie Suite|31610|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. S-type or I-type? Published in GSNSW seamless geology. Lith desc as I-type from 2023 version.|Grey to white, foliated, biotite monzogranite|acid intrusive rock|||Y||30-SEP-23
McKeahnie Suite|31610|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
McLaughlins Flat Granodiorite|11564|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|35109|45147||||||Biotite granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
McLeod Hill Gabbro|11568|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Gabbro, diorite|basic intrusive rock|||Y||17-JAN-23
McMillan Formation|75068|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Late Permian||||deposition|Late Permian||||||||No|61612|||||||||||N||17-JAN-23
McPherson Volcanics|11577|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35296|||||||||||N||17-JAN-23
Mcleods Trail Granogabbro|11583|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39409||||||||basic intrusive rock|||Y||17-JAN-23
Meadow Flat Shale|25223|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39364||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Meadows Tank Formation|11589|Meadows Tank Sandstone|11591|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mulga Downs Group|26063|||Eifelian||||deposition|Emsian|||||200|1300|NSW|No|37798|41821||||||Conglomerate, sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Medowie Clay Member|80168|||||Yes|Member, phase|Invalid|Other new published name|Mentioned|||||Quaternary|||||Quaternary||||||||No|68811||||||Not stated what this is a member of. Aquitard.|||||N||17-JAN-23
Medowie Coal Member|77594|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Sydney Basin.|Coal: dull and bright, sporadically stoney; dark grey to carbonaceous shale, brown to grey mudstone, weakly carbonaceous, sideritic band|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Melbergen Sandstone|27486|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||||No|35163|||||||Very fine- to fine-grained quartz sandstones, sporadically grading to medium-grained sandstones - with secondary silicification.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Melgra Formation|31301|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Toongi Group|26178|||Silurian||||deposition|Silurian||||||||No|50590||Warren A.|11-MAR-97|||Dubbo 1:250 000 sheet area.|Quartzite||||N||17-JAN-23
Meloola Volcanics|24377|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Derriwong Group|5403|||Lower Devonian||||eruption|Pridoli||||||230|NSW|Yes|40365|40365|S.J.Richardson|06-MAR-80|Russell, T.|18-JUN-82|Limestones include small vertebrate fossil fauna.|Fine-grained siliceous volcanics, minor arenite, siltstone, conglomerate; contains corals, conodonts.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Melougel Ignimbrite|39132|Melougal Porphyry|37335|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Rast Group|23935|||Lochkovian||||intrusion|Lochkovian||||||||No|61964||Meakin, S.|19-SEP-03|||Originally reserved as Melougal Porphyry.  Within the Rast Group.|Dark grey elongated tors of very crystal-rich, densely welded ignimbrite, and some broken phenocrysts and faint, relict strung-out shards and pumice fragments.|acid volcanic rock|||N|A-type|17-JAN-23
Melvilles Coal Member|11633|Melvilles Seam|11634|||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Pamboola Formation|30029|||Late Permian||||deposition|Late Permian||||||5||No|37094||||||Used in GSNSW seamless geology dataset 2021. Formerly a Member of Black Jack Formation.|Coal; minor fine-grained sandstone, carbonaceous siltstone and claystone, tuff|organic rich sedimentary rock|siliciclastic sedimentary rock||N||30-MAR-23
Menai Claystone Member|11640|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Scythian||||deposition|Scythian||||||||No|33683|||||||||||N||17-JAN-23
Menamurtee Sandstone|33758|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Wana Karnu Group|70131|||Eifelian||||deposition|Emsian||||||||No|24345|66623|Neef G.|27-OCT-99|||Western New South Wales. Part of the 700m thick Menamurtee dome sequence. Now (2010) part of the Wana Karnu Group.|Medium- to coarse-grained, pebbly, massive grey lithic and quartzose sandstone, local kaolinite-rich beds and rare conglomerate beds up to 5m thick.|siliciclastic sedimentary rock|||N||17-JAN-23
Menindee|76720|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Gibson, D., Magee, J (GA groundwater)|15-DEC-11|||To be used for Cenozoic unit in the Menindee 1:250 K sheet area (SI54-3).|||||N||17-JAN-23
Merewether Conglomerate Member|11673|Merewether Conglomerate|11674|||Yes|Member, phase|Informal|Other new published name|Mentioned|Kotara Formation|27815|||Lopingian||||deposition|Lopingian||||||||No|43447||||||Formerly of Kotara Formation, Adamstown Subgroup, Newcastle Coal Measures. This Member was dropped. See also Merewether Conglomerate. Name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mereworth alkali olivine basalt|11675|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|36557||||||||basic volcanic rock|||N||17-JAN-23
Merigan Black Shale|11678|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Birkenburn Beds|26395|||Upper Ordovician||||deposition|Upper Ordovician||||||150|NSW|Yes|30736||Felton E.A.||Bryan, J.H.|27-OCT-75|||siliciclastic sedimentary rock|||N||17-JAN-23
Meringo Creek Formation|11682|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Chattian||||deposition|Chattian||||||45||No|43465|||||||Pebble and cobble conglomerate, quartz sandstone poorly cemented in part, buff and grey claystone and sand|siliciclastic sedimentary rock|||N||17-JAN-23
Merlewood Formation|26028|Lower Kuttung Series|10757|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Serpukhovian|326.8|1.9||deposition|Visean|348.1|1.8||||1500|NSW|No|43418|37987|||||Mapping of this unit now incorporates parts of Waverley Formation. In the Werrie block/Tamworth Belt.|Coarse cross-bedded feldspathic and lithic sandstone; red-pink ignimbrites, unwelded, locally pumiceous; minor conglomerate, mudstone and limestone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock|forearc|N||17-JAN-23
Meroo Lamprophyre|83463|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neogene|||inferred||Paleogene|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Lamprophyric quartz diorite.|intermediate intrusive rock|exotic composition igneous rock||Y||17-JAN-23
Merrastone Formation|23787|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Kungurian||||deposition|Asselian||||||375||No|41009||R.Brown|16-JAN-87||||Conglomerate, breccia, lithic sandstone, siltstone, mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Merriangaah Siltstone|11705|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Yalmy Group|20777|||Wenlock||||deposition|Llandovery|||||80|||No|29994|22815||||||Siltstone and shale|fine grained siliciclastic rock|||N||17-JAN-23
Merricumbene Granodiorite|11708|Merricumbene Granite|27833|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Merricumbene Suite|31493|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|39028|40276||||||Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Merricumbene Suite|31493|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Cobargo Supersuite|4250|Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Merriganowry Shale Member|31719|Merriganowry Shale|29511|||Yes|Member, phase|Formal|Resvd name published|Described|Dulladerry Volcanics|29509|||Givetian||||deposition|Givetian||||||||No|43782||||||Bathurst 1:250 000 sheet area|Consists of slumped shale with graded interbeds of rhyolitic sandstone, minor rhyolite lava.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Merrimbula Group|11713|Merrimbula Formation|11711|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Famennian||||deposition|Frasnian||||||3200|NSW|No|43461|40276|||||See also the misspelt Merimbula Group.|Sandstone, siltstone, mudstone, and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Merrimerriwa Formation|11724|Merri Formation""|11703|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mulga Downs Group|26063|||Eifelian||||deposition|Emsian||||||400|NSW|No|42467|41821||||||||||N||17-JAN-23
Merrions Formation|29917|Merrions Tuff|27834|||Yes|Formation, beds|Formal|Variation of published name|Defined|Crudine Group|4970|||Pragian|||inferred, overlying unit|magmatic crystallisation|Lochkovian|413.4|5.5|isotopic, U/Pb-Pb/Pb ion probe|||662|NSW|No|43494|23170|||||Used in Bathurst 1:250 000 sheet area. Originally mapped as Paling Yard Tuff and Winburn Tuff. Age range: 413.4+/-5.5Ma and 411.8+/-5.5 MA (Black & Jagodzinski (2003), a revision of Jagodzinski & Black (1999)).|Consists of very coarse pale-coloured feldspathic sandstone; minor siltstone interbeds.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Merriown Coal Member|22317|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||D.Butel|03-AUG-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash (>6% raw), bituminous  (steaming) coal, thickness typically 2.8 m in Boggabri region, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Merritop granite|80452|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glen Emu granite suite|80442|Silurian|||inferred||Silurian|||inferred|||||No|70718||||||Booligal 1:250k sheet area.|Interpreted as granite or granodiorite.|acid intrusive rock|||Y||17-JAN-23
Merrygoen Ironstone Member|26029|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Purlawaugh Formation|15676|||Middle Jurassic||||deposition|Lower Jurassic|||||||NSW|No|30610|30610|||||Geological Province from GSNSW 2013 State list.|||||N||17-JAN-23
Merton Formation|41247|Merton Formation""|11736|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Toongi Group|26178|||||||deposition|||||||||No|50590|||||||||||N||17-JAN-23
Merumbadgee Monzogranite|76961|Merumbadgee Adamellite|11739|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Dalgety Suite|5143|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Cordierite biotite monzogranite|acid intrusive rock|||Y|S-type|30-SEP-23
Merumbago Granodiorite|26275|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Finister Suite|6656|Early Silurian||||intrusion|Early Silurian|||||||NSW|No|38500|41905|B.W.Chappell|27-OCT-75||||Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Merungi Gap Conglomerate Member|74755|Meringi Gap Conglomerate Member|42043|||Yes|Member, phase|Formal|Resvd name published|Defined|Naradhan Sandstone|27517|||Upper Devonian|||inferred, geological correlation|deposition|Upper Devonian|||inferred, geological correlation|||||No|61964|61964|||||Reserved as Meringi Gap Conglomerate Member (misspelt). To be used on Map Sheet 8130 (Rankin Springs area). Note place name is Merungi Gap. Revised stratigraphy of Cocoparra Group recently added this unit at the top of Naradhan Sandstone.|Primarily a polymictic orthoconglomerate with clasts to cobble size in matrix of very coarse-grained quartz lithic sandstone.||||N||17-JAN-23
Meryula Formation|11741|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Kopyje Group|28654|||Lochkovian||||deposition|Pridoli||||||1500|NSW|No|35287|43032|||||Kopyje Shelf.|Siltstone and minor fine-grained quartzose sandstone, interbedded with occasional biohermal and biostromal limestone and felsic tuffs; coarse quartz-lithic sandstone and conglomerate at base|siliciclastic sedimentary rock|||N||04-AUG-23
Mesoproterozoic granites 76638|76638|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Calymmian|1510|||intrusion|Calymmian|1600|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic intrusive rocks.  Range in composition from alkali feldspar granite to tonalite; includes associated rocks such as migmatite and minor gabbro and diorite.|acid intrusive rock|||Y||17-JAN-23
Metford Formation|22318|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||B.C.Preston, K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Grey fine- to very fine-grained lithic sandstone, grey laminated siltstone, dark green-grey mudstone, thin coal seams, aphanitic igneous intrusion with irregular contacts|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Micaligo Monzogranite|76998|Micaligo Adamellite|24379|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Michelago Suite|77098|Lower Devonian|||inferred|intrusion|Lower Devonian|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Used in GSNSW seamless geology dataset 2021.|Biotite-hornblende monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Micaligo Suite|31606|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Micalong Creek beds|11760|Micalong Creek Beds|11757|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||||Pridoli|||||Pridoli||||||||No|45147||||||Used in GSNSW seamless geology dataset 2021.|Recrystallised limestone, marble and interbedded shale.||||N||24-JUL-23
Micalong Suite|70032|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||Wyangala Supersuite|20701|Silurian|||||Silurian||||||||No|64238||Thomas, O. (GSNSW)|31-JAN-06|||Includes the Micalong Basic Igneous Complex.|Plutons include dolerite, gabbro and tonalite as well as quartz diorite and leucogranodiorite, with very minor hornblende pyroxenite. Gabbro and diorite typically well jointed; local steeply dipping spaced cleavage. I-type.|basic intrusive rock|||Y||17-JAN-23
Micalong Swamp Basic Igneous Complex|27194|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||Micalong Suite|70032|Early Silurian||||intrusion|Early Silurian|430|9|isotopic, K/Ar||||NSW|Yes|33959|45147|Owen M., Wyborn D.||Hawke, J.|08-DEC-76|See also Micalong Basic Igneous Complex.|Hornblende gabbro, hornblende dolerite, two pyroxene gabbro, olivine gabbro, leucogabbro, anorthosite, diorite, granodiorite granophyre, hornblendite.|basic intrusive rock|||Y||17-JAN-23
Michelago Igneous Complex|11773|Michelago Granite|11771|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Michelago Suite|77098|Lower Devonian||||intrusion|Lower Devonian|395|8|isotopic, K/Ar||||NSW|Yes|32820|36413|Richardson S.J.||Hawke, J.|20-FEB-79|After Brown (1928). See also Michelago Granite.|Minor phases including coarse to medium-grained leucogranite, aplite, and biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Michelago Suite|77098|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|||Blevin, P. (GSNSW)|05-MAY-11|||Used in GSNSW seamless geology dataset 2021.|Intrusive suite mainly comprising monzogranite and granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Middle Beach Member|83329|||||Yes|Member, phase|Formal|Other new published name|Described|Neds Beach Formation|82619|||Upper Pleistocene|.08||luminescence||Upper Pleistocene|.1||luminescence|||||No|73136||||||Lord Howe Island.|Miliolid-rich, very pale brown to white, poorly lithified dune sands.|sediment|||N||25-JUL-23
Middle Bed|35168|||||Yes|Bed|Informal|Other new published name|Mentioned|Victoria Tunnel coal seam|35119||||||||||||||||No|23055||||||Tuff marker bed in Newcastle Coal Measures.|||||N||17-JAN-23
Middle Brother Granodiorite|80914|Middle Brother monzodiorite|80913|||Yes|Formation, beds|Formal|Variation of published name|Described|||The Brothers Suite|77628|Upper Triassic|209||isotopic, K/Ar||Upper Triassic|212.5|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|71628||||||Published in RefID 71628 Bryant (2017), GSNSW Report GS2017/0408, pp17: 80 to 17: 83. Used in GSNSW seamless geology dataset 2021. See also Middle Brother Diorite.|Hornblende-biotite-(pyroxene) granodiorite, two-pyroxene diorite to monzodiorite, and monzogranite.|acid intrusive rock|intermediate intrusive rock||Y|A-type|23-AUG-23
Middle Creek granodiorite|82128|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Wenlock|||||Wenlock|430.9|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72528||||||Informal name used in company reports for unnamed porphyritic granodiorite dated herein with U-Pb SHRIMP magmatic crystallisation age of 430.9+/-2.1 Ma|||||Y||17-JAN-23
Middle River Coal Member|11801|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Farmers Creek Formation|24609|||||||deposition|||||||||No|40806|||||||A sequence of coal and argillaceous sedimentary rocks and oil shale; coal is basically dull with bright layers; sedimentary bands are thicker in upper parts of the unit.|organic rich sedimentary rock|||N||17-JAN-23
Middledale Gabbroic Diorite|22324|Middledale Granite|11825|||Yes|Formation, beds|Formal|Resvd name published|Described|||Wallundry Suite|29582|Pridoli|416.75|.24|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Pridoli|416.8|1.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|22638||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD as Middledale Granite in Chappell et al (1991). Dated 431 +/- 4 Ma by Rb-Sr in 1995. More recent SHRIMP dating (S. Bodorkos pers comm) puts the age at 416 +/-3 Ma.|Gabbroic diorite, noritic gabbro, gabbro, diorite.|basic intrusive rock|||Y||17-JAN-23
Midway Granite|78457|Midway granite|78373|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Triassic|230.7|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Triassic|235|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|70210||||||Southern Thomson Orogen area [but too young to be part of Thomson Orogen as currently defined]. Accidental capitalisation of informal name? See also Midway granite. Not related to Midway Creek Granodiorite in N. Qld. Related to tin and base metal mineralisation at Doradilla.|Granite and quartz-feldspar porphyry dykes.|acid intrusive rock|||Y|S-type|25-AUG-23
Midway granite|78373|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Upper Triassic||||intrusion|Upper Triassic|235|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|69002||||||Comprises a small stock about 300m in diameter. 235 +/- 1.4 Ma, SHRIMP II (Burton et al. 2007). See also Midway Granite.||acid intrusive rock|||Y||17-JAN-23
Mihi Rhyolite Member|40757|Mihi|39892|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Bashkirian||||eruption|Serpukhovian|320|4.5|isotopic, U/Pb-Pb/Pb ion probe|||90|NSW|Yes|50613|50613|Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|Reserved as Mihi.  Volcanic member of the Piney Range package (informal grouping of stratigraphically recognisable distinctive, mappable units.|Red to green, unwelded rhyolitic ignimbrite. Medial parts highly pumiceous, the remainder contains quartz, plagioclase, minor K-feldspar, biotite and opaques in a glassy, shard-rich. Groundmass. Shards are partially replaced by chlorite and zeolite.|acid volcanic rock|||N||17-JAN-23
Mila Granodiorite|22326|Mila Granite|11829|||Yes|Formation, beds|Formal|Resvd name published|Described|||Mila Suite|31609|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Mila Granite in Chappell et al (1991).|Coarse granodiorite|acid intrusive rock|||Y||17-JAN-23
Mila Suite|31609|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Milandra Granite|31714|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|23392||Wallace D.|22-SEP-97|||Parkes 1997 prelim. 1:100k. Previously of Eugowra Suite. Ungrouped by GSNSW in 2012.|Leucocratic biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Milbrodale Formation|23790|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian|||||||NSW|No|40805|40805|P.Wootton|20-SEP-84||||A waxy white tuffaceous claystone to cherty siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Milby Chert Member|38481|||||Yes|Member, phase|Formal|Resvd name published|Described|Abercrombie Formation|69898|||Floian|||inferred, biostratigraphic correlation|deposition|Floian|||inferred, biostratigraphic correlation|||||No|61964||Scott, M.|13-JUN-03|||For use on TULLIBIGEA map sheet.  Includes an unnamed Orodovician chert member of Scott and Sherwin (2000). Formerly of Clements Formation, but Clements incorporated into, and superseded by the Abercrombie Formation in 2018. Contains late Bendigonian to early Castlemainian conodonts.|A relatively poorly exposed and laterally impersistent chert which forms lenticular bodies that pass into sandstone, mudstone and shale of the turbiditic sequence.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Mile Road beds|34363|Mile Road Formation|22329|||Yes|Formation, beds|Informal|Resvd name published|Described|||||Frasnian||||deposition|Givetian||||||||No|22736||||||New name for sandstone, siltstone succession near base of southern Hastings Block. Shown on map in AJES 42(6), Figs 2 & 7. Replaces (in part) Byabbara beds shown as Cb on the Tamworth-Hastings 1:250K  metallogenic map.|Siltstone, volcanogenic sandstone, limestone and conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock|island arc|N||17-JAN-23
Milk Shanty Formation|25236|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Byron Range Group|3235|||Devonian||||deposition|Devonian||||||170||No|60086|||||||Siltstone, sandstone and conglomerate.||||N||17-JAN-23
Mill Creek Siltstone|26740|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Jurassic||||deposition|Jurassic||||||||No|43881||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Millah Murrah Granite|11838|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Bathurst Supersuite|31449|Pennsylvanian||||intrusion|Carboniferous||||||||No|43515||||||Bathurst 1:250 000 sheet Intrudes the Crudine Group.|Medium grained, equigranular, leucocratic granite|acid intrusive rock|||Y||17-JAN-23
Millambri Formation|27195|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Cabonne Group|21409|||Early Silurian||||deposition|Upper Ordovician||||||1250|NSW|No|43385|34404|||||Southern Molong-Wellington Volcanic Belt.|Immature volcaniclastic arenite and siltstone, conglomerate lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Millamolong Porphyry|29520|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Cabonne Group|21409|||Upper Ordovician||||eruption|Upper Ordovician|||||||NSW|No|43642|23214|Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Intrudes the Weemalla Formation.|Feldspar porphyry.|acid igneous rock|||U||17-JAN-23
Millendale Formation|78647|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Llandovery||||deposition|Llandovery||||||||No|69159|||||||Grey, cream, brown to buff, medium- to thickly-bedded medium-grained quartz-rich sandstone interbedded with grey to pink siltstone, grading to grey siltstone and mudstone with fine-grained quartzose sandstone laminae towards the top of the Formation.|siliciclastic sedimentary rock|||N||17-JAN-23
Millewa Group|28128|Millewa Formation|33954|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Albian|||||Aptian||||||279|VIC|No|31745|42966||||||||||N||17-JAN-23
Millfield Farm Formation|11848|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39288|||||||||||N||17-JAN-23
Millie Group|30036|Millie|22334|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Late Permian||||deposition|Late Permian||||||||No|43194|||||||Basal conglomerate passing upward into bioturbated silty sandstone and minor siltstone with dropped pebbles; fining up sequence of intensely bioturbated silty sandstone to siltstone/claystone laminite.|siliciclastic sedimentary rock|||N||17-JAN-23
Milligans Road Formation|74041|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Jurassic|||inferred, geological correlation|deposition|Upper Triassic|||inferred, geological correlation||12|27|NSW|Yes|66090|66090|Pratt, W.|19-DEC-07|Sherwin, L.|01-SEP-10|For use on map sheet 9434; nearest town is Kendall. Published in NSWGS Quarterly Notes 134 (2010). Of Lorne Basin.|Sandstones and tuffs with minor carbonaceous mudstones.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Millsville Formation|30024|Millsville Beds|29210|||Yes|Formation, beds|Formal|Variation of published name|Defined|Tannabutta Group|30153|||Ludlow||||deposition|Silurian||||||247||No|43188|23170||||||Deep marine clastics.|siliciclastic sedimentary rock|||N||06-SEP-23
Millthorpe Volcanics|73514|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Upper Ordovician||||eruption|Upper Ordovician||||||900||No|63284|63283|||||Formerly mapped as part of the Byng Volcanics by Pogson and Watkins (1998). See refid: 63283, p214. Molong-Wellington Volcanic Belt.|Plagioclase and clinopyroxene-phyric evolved shoshonitic basalt and basaltic andesite lavas with subordinate volcaniclastic sandstone. Occasional clinopyroxene and hornblende-phyric basaltic andesite lavas.|basic volcanic rock|||N||17-JAN-23
Milmiland Granite|29555|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area. Max Age: 394 (+/-) 2 Ma.|Leucocratic, medium-grained, equigranular, high level, unfractionated, A-type granite with mafic xenoliths.  Mild alteration to chlorite, sphene, clay and clinozoisite.  Well jointed.|acid intrusive rock|||Y||17-JAN-23
Milroy Granite|33693|Glenroy Granite|42111|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bogalong Suite|31620|Lower Devonian||||intrusion|Lower Devonian||||||||No|24417||Raymond, O.L.|29-SEP-99|||Marsden 1:100 000 sheet area. Used in GSNSW seamless geology dataset 2021.|Medium- to fine-grained, felsic biotite granite|acid intrusive rock|||Y|S-type|24-JUL-23
Milton Grove Formation|34494|Milton Grove beds|22336|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mulga Downs Group|26063|||Mississippian||||deposition|Upper Devonian||||||||No|22799|22893|||||See also Milton Grove beds. Lithology description from GSNSW seamless geology 2023.|Medium- to fine-grained, red-brown quartz arenite to litharenite form resistant beds. Very fine-grained laminated litharenite form the recessive beds.||||N||28-SEP-23
Milton Monzonite|11875|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Triassic|245|6|palaeomagnetism|intrusion|Kungurian|275.5|4.3|isotopic, K/Ar|||||No|43446||||||See also Milton Complex Age: 245+/-6Ma K-Ar whole rock (Facer and Carr, 1979) and 275.5+/-4.3 Ma U-Pb zircon SHRIMP magmatic crystallisation age (Shi et al. 2022).|Porphyritic monzonite with phenocrysts of glassy plagioclase in a black fine-grained (and sporadically sub-aphanitic) matrix; variable to a monzonite-porphyry; weathers to a light colour; small zones of olivine basalt ?dyke material.|intermediate intrusive rock|||Y||16-OCT-23
Minchinbury Sandstone|27678|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Wianamatta Group|19967|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|43365|35690||||||Sandy barrier island complex. Fine to medium-grained lithic sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Minemoorong ultramafic|82718|Minemoorong Intrusive Complex|34616|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Ordovician|||inferred||Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. Evidently a deliberate downgrading of published name Minemoorong Intrusive Complex. Probable Alaskan-type intrusive complex (partly pyroxenite) defined by intense aeromagnetic anomaly. Previously informally known as East Albert.|Probable Alaskan-type intrusive complex (partly pyroxenite) defined by intense aeromagnetic anomaly.|ultramafic intrusive rock|||Y||13-JUN-23
Mineral Hill Volcanics|11894|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kopyje Group|28654|||Lochkovian|417.6|3.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Pridoli|422.2|3.7|isotopic, U/Pb-Pb/Pb ion probe|eruption||300||No|34405||||||Originally mapped within the "Ootha Group" (Rose and Brunker, 1969) and combined with Talingaboolba Formation by McClatchie (1971). Latest age data, palaeontological and radiometric, from Quarterly Notes 147, esp. p13. Kopyje Shelf.|Aphyric to crystal-poor dacite to moderately coarse-grained crystal-rich rhyolite, crystal-lithic and vitric volcaniclastic sandstone, lesser mudstone, siltstone, jasper/chert and limestone.|acid volcanic rock|siliciclastic sedimentary rock||N|I-type|04-AUG-23
Mingaletta Formation|23795|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Manning Group|11186|||Carboniferous||||deposition|Carboniferous|326.3|3.9|unknown||||NSW|No|38803|38803|D.Hamilton|30-JUN-82||||Thick succession of non-marine sandstone, siltstone, conglomerate, vitric tuff, minor rhyolite and coal-bearing beds.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Mingelo Volcanics|27687|Mingelo Dacite|28227|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Rhuddanian|||inferred, geochemical correlation|eruption|Darriwilian|463||inferred, geochemical correlation|||1000|NSW|No|40891|46522|||||Numerical ages: 463-455 Ma [said to be Darriwilian- Gisbornian] from 2007 reference. Age range updated from GSNSW seamless geology dataset 2023. Lith description is now [2023] a combination of Crawford et al. (2007) refID 63283, and GSNSW seamless. Used in GA Alkaline Rocks dataset.|Dacite and epiclastics; basaltic andesite lavas, ranging from vesicular and formerly glassy, to massive, with plagioclase, augite and rare altered olivine phenocrysts. Dominantly a high-K calc alkaline to shoshonitic suite.|intermediate volcanic rock|||N||08-JUN-23
Minjary Volcanics|11921|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Boggy Plain Suite|2091|Lower Devonian||||eruption|Lower Devonian||||||350||No|40497||||||See also misspelling Mingary Volcanics.|Dacitic to rhyolitic tuffs, airfall and ash flow; porphyritic rhyolitic ashfall and ashflow tuff and ignimbrite; polymictic conglomerate and sandstone.|acid volcanic rock|||N||17-JAN-23
Minmi Member|11923|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Bungil Formation|3008|||Aptian||||deposition|Early Aptian||||||||No|44377|44377|||||Defined 1964. Previously of Blythesdale Formation. Also listed as member of Hackdown Formation [but name not in database]. Ref 65384 Chan (2009) gives age as 'probably Aptian'. Unclear if this unit is really as widespread as the list of States suggests.|Calcareous and glauconitic protoquartzites|siliciclastic sedimentary rock|||N||10-JUL-23
Minnalong Sandstone|24381|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Cretaceous||||deposition|Upper Jurassic|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|||siliciclastic sedimentary rock|||N||17-JAN-23
Minnamurra Latite Member|11927|Minnamurra Latite|11929|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|29900||||||See also mis-spellings Minamurra, Minumurra. Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Glomeroporphyritic flow with phenocrysts of labradorite.|intermediate volcanic rock|||N||17-JAN-23
Minnegans Monzogranite|76962|Minnegans Adamellite|11932|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Late Silurian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Fine- to medium-grained mafic cordierite-biotite monzogranite (cordierite to 85% of rock); abundant mafic clots; quartz and K-feldspar crystals to 3-4 mm|acid intrusive rock|||Y|S-type|30-SEP-23
Minoru Plains Volcanics|79636|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Devonian||||eruption|Cambrian||||||||No|70821||||||N and S of Cunnamulla. Map symbol ( Emp) implies Cambrian age suspected or inferred. Lithology description and age range from GSNSW seamless geology 2023.|Relatively narrow belt of roughly linear magnetic high features; interpreted as intermediate or mafic volcanic interval, dissected and offset by many minor faults.||||N||30-SEP-23
Minuma Range Group|11947|Minuma Beds|11945|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Upper Devonian|||||Upper Devonian|||||||NSW|No|39028|40276||||||Shallow marine, fluvial clastic deposits; mature quartzose and kaolin-rich sediments, weakly cleaved; basal conglomerates, overlying shallow marine succession, upper fluvial unit; red mustone beds in upper and lower units.||||N||17-JAN-23
Minyon Falls Rhyolite Member|28758|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Nimbin Rhyolite|14148|||||||eruption|||||||||No|43881|43881|||||||acid volcanic rock|||N||17-JAN-23
Mirani Monzogranite|82574|Mirani Monzogranite""|41067|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Hillgrove Supersuite|67847|Permian|||inferred||Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to coarse-grained, equigranular to locally porphyritic, biotite monzogranite; weakly to strongly foliated. S-type.|acid intrusive rock|||Y|S-type|01-SEP-23
Mirannie Volcanic Member|11956|Mirannie Ignimbrite Member|40468|||Yes|Member, phase|Formal|Unknown or process pending|Described|Seaham Formation|16708|||Serpukhovian|||inferred, biostratigraphic correlation|eruption|Serpukhovian|321.3|4.4|isotopic, U/Pb-Pb/Pb ion probe|||230||No|32379||||||Important marker horizon. See 1:100 000 explan notes for Camberwell, Dungog & Bulahdelah p109. See also misspelling Mirranie Volcanic Member.|Lithic rhyodacitic ignimbrite with distinctive crystals of rose-coloured quartz.|acid volcanic rock|||N||17-JAN-23
Mirrabooka Formation|26743|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mumbil Group|13411|||Ludlow||||deposition|Wenlock||||||500||No|33116||||||Not to be confused with Mirrabooka Member in WA.|Fine quartzose arenite, minor cherty or sandy layers.|siliciclastic sedimentary rock|||N||17-JAN-23
Mirrie Formation|77260|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|68004||||||Apparently an application of the reserved name Mirrie (unit no. 22350), originator Tadros, N.Z. 1991.|Pebble conglomerate in a black carbonaceous claystone matrix; clasts from basement metasediments and matrix is from organic-rich swamp or lake sediments.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Mishurley Creek Granite|29688|Billabong Creek Granite|34245|||Yes|Formation, beds|Formal|Resvd name published|Described|||Mishurley Creek Suite|82576|Lochkovian|419.3|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|419.3|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|22638||Warren A.|07-SEP-95|||Cootamundra 1:250 000 sheet. Replaces Billabong Creek Granite.|Fine-grained quartz monzonite (monzodiorite), biotite altered to muscovite, minor sporadic interstitial fluorite.|acid intrusive rock|intermediate intrusive rock||Y||21-AUG-23
Mishurley Creek Suite|82576|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Lochkovian|||inferred||Llandovery|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Fine-grained quartz monzonite (monzodiorite), biotite altered to muscovite, minor sporadic interstitial fluorite; leucocratic biotite-(muscovite) granite, gneissic biotite granite, massive monzogranite.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Mitchell Cave beds|34936|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Pleistocene|||||Pleistocene||||||||No|22952||||||Not actually on any series map, mostly unconolidated cave deposits. Should remain informal as this name is similar to the early Ordovician Mitchell Formation.|||||N||17-JAN-23
Mitchell Formation|33382|Mitchell Breccia|11978|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Floian|476||inferred, biostratigraphic correlation|deposition|Tremadocian|485||inferred, biostratigraphic correlation||1100|||No|22857|23170|Meakin S.|16-FEB-99|||To be used on Dubbo 1:250 000, 2nd ed map.|Bedded volcaniclastic sandstone, shales and massive to poorly bedded conglomerate to angular sedimentary breccias and minor lavas; rare limestones at the top of the unit.|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Mitchell Formation, Hensleigh Siltstone|42297|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Lower Ordovician||||deposition|Lower Ordovician||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Latitic conglomerate, sandstone, siltstone, laminated graptolitic siltstone; minor latite, allochthonous limestone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mitchells Creek Group|11982|||||Yes|Group, Suite|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|39364|||||||||||N||17-JAN-23
Mitchie Well Formation|25246|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Cryogenian||||||2130||No|30261|||||||Lenticular grey limestone interbedded with laminated calcareous siltstone.|carbonate sedimentary rock|||N||17-JAN-23
Mittagang Gneiss|11992|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|34404|||||||||||N||17-JAN-23
Mittagong Formation|27489|Mittagong formation|11994|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Middle Triassic||||deposition|Middle Triassic||||||10||No|43320|||||||Interbedded shale, laminite and medium-grained quartz sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Mittagong Syenites|28760|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|40811|||||||||||Y||17-JAN-23
Moffats Coal Member|77595|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012.|Coal: bright and dull bands, sporadically stoney, rarely fusainous; dark grey carbonaceous shale beds, coaly shale, weakly carbonaceous mudstone beds|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mogendoura Granodiorite|26745|Mogendoura Granite|12009|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Moruya Suite|12371|Lower Devonian||||intrusion|Pragian||||||||No|35248||||||See also the informal Mogendoura Granite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Moggs Swamp Complex|82577|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium-grained, locally porphyritic, biotite-hornblende-clinopyroxene-(orthopyroxene) quartz diorite - quartz-poor tonalite to quartz-poor granodiorite - quartz monzodiorite enclosing quartzo-feldspathic veins and pegmatite.|intermediate intrusive rock|acid intrusive rock||Y||16-AUG-23
Mogongong Conglomerate Member|12015|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Peaks Formation|31703|||Upper Devonian||||deposition|Upper Devonian||||||120||No|43510|43507|||||In Forbes 1:250 000 sheet area. Now [1999] considered to be Middle Devonian. Used in GSNSW seamless geology dataset 2021.|Polymictic conglomerate.||||N||21-JUL-23
Mograni Limestone Member|23803|Mograni Limestone|12016|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Wallanbah Formation|25682|||Tournaisian||||deposition|Tournaisian||||||75|NSW|No|36057|36057|D.T.Crane, J.W.Hunt|10-FEB-76|||||carbonate sedimentary rock|||N||17-JAN-23
Moira Formation|78891|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mulga Downs Group|26063|||Upper Devonian|||inferred|deposition|Middle Devonian|414|7|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|69635||GSNSW|01-NOV-13|||GSNSW Unit code Dmdz, so probably Devonian. [well, yes; it IS part of the Mulga Downs Group]. Darling Basin. Maximum deposition age indicates it is not part of the Thomson Orogen.|Includes both fine-grained red sandstone, and feldspathic coarse-grained sandstone to granule conglomerate.|siliciclastic sedimentary rock|||N||11-SEP-23
Mole Leucogranite|12037|Mole Granite|12035|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Lower Triassic||||magmatic crystallisation|Lopingian|249.8|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|38842||||||Original use of name in 1982 replaced by Mole Granite for many years, but this name reinstated in 2017 and used in GSNSW seamless geology dataset 2021.|Coarse- to very coarse-grained, seriate biotite leucomonzogranite to leucosyenogranites, with a marginal porphyritic phase, and minor microgranite; locally greisenous and silexite phases. Highly fractionated I-type.|acid intrusive rock|||Y|I-type|18-JUL-23
Molineaux-Lowan Sands|34521|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Holocene||||deposition|Upper Pleistocene||||||||No|22799||||||The Molineaux Sand (SA) and the Lowan Sand (Vic) are essentially the same unit - see 94/27899. The unit is called Molineaux-Lowan Sands in NSW.|||||N||17-JAN-23
Molong Limestone|12050|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mumbil Group|13411|||Wenlock|424.3|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|428.2|1.8|isotopic, U/Pb-Pb/Pb ion probe|||1220|NSW|No|43344|29362|||||Northwest. Previously included in Molong Beds, Gamboola Formation and Nanima Formation. Adrian (1977) formally separated the unit from Reedy Creek Limestone. 1200m thick at type section. Ages of two tuffs.|Massive to bedded, poorly to highly fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Monaro Volcanics|12067|Monaro Alkaline Volcanics|25251|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Oligocene||||eruption|Eocene||||||||No|36557|||||||Medium- to very coarse-grained porphyritic dolerite, massive to vesicular dark blue-grey to black porphyritic basalt, coarse- to very-fine grained. Lacustrine to fluvial unconsolidated sedimentary rocks and silcrete form the sub-basaltic component|basic intrusive rock|basic volcanic rock||N||17-JAN-23
Monash Formation|26036|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Albian||||deposition|Aptian||||||279|SA|No|33488|42966|||||Consists of: Coombool Member, Merreti Member and Pyap Member.|||||N||17-JAN-23
Monga Granite|12098|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Monga Suite|31607|Upper Devonian||||intrusion|Middle Devonian|371|6|isotopic, Rb/Sr||||NSW|No|12185|40276||||||Pink alkali granite, monzogranite, graphic granite, granodiorite|acid intrusive rock|||Y|A-type|17-JAN-23
Monga Suite|31607|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Mongamula Monzogranite|77038|Mongamula Adamellite|24383|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Monga Suite|31607|Upper Devonian||||intrusion|Middle Devonian||||||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards. See previous name for definition. Published in GSNSW seamless geology.|Biotite monzogranite, leucomonzogranite|acid intrusive rock|||Y|I-type|26-SEP-23
Monkellan Granodiorite|24384|Michelago Granite|11771|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Michelago Suite|77098|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|36414|36413|S.J.Richardson|27-FEB-75|Hawke, J.|20-FEB-79|Formerly of Michelago Igneous Complex.|Biotite granodiorite and minor porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Monkey Place Creek Tuff Member|12103|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|||||||||eruption|||||||||No|29942|||||||||||N||17-JAN-23
Montagu Dacite Member|22365|||||Yes|Member, phase|Formal|Variation of reserved name|Defined|Rothlyn Formation|24479|||Lower Devonian|||inferred, overlying unit|eruption|Late Silurian|||inferred, underlying unit|||800|NSW|Yes|49690||Henderson G.A.M.|02-AUG-85|||Appears in BMR Record 1990/35. This name revived by GSNSW 14-JUN-2012. Age from parent unit, and underlying Colinton Volcanics.|Bouldery outcrops of coarse, grey dacite with large hornblende phenocrysts.|acid volcanic rock|||N||04-SEP-23
Montague Island Complex|28764|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42855|||||||||||N||17-JAN-23
Montrose Coal|12140|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Adamstown Subgroup|107|||Lopingian|||inferred, lithostratigraphic correlation|deposition|Lopingian|||inferred, lithostratigraphic correlation|||||No|36042||||||This Formation was downgraded to the informal Montrose coal seam instead. Of Adamstown Subgroup, Newcastle Coal Measures. Name reinstated. Updated from GSNSW seamless geology dataset 2021. This unit coalesces with the Wave Hill Coal unit in the west.|Coal bands form thicknesses from 2.4-3.9 m.|organic rich sedimentary rock|||N||17-JAN-23
Monza gabbro|83274|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Miaolingian|||||Miaolingian|503.2|3.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|73154||||||Informal/invalid name. Unclear if this is realy intended to be a unit name or a lith description of dated sample of Monza Inrusive Complex. Entirely sub-surface body.|||||Y||17-JAN-23
Mooculta Granite|79107|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|69635||||||Coherent, rhyolitic sills in DDH T17 may be related to this unit.|Biotite granodiorite with pelitic metasedimentary xenoliths.|acid intrusive rock|||Y||10-SEP-23
Mooga Sandstone|12170|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Blythesdale Group|2034|||Hauterivian||||deposition|Upper Jurassic||||||168|QLD|No|44375|45110|||||See also Mooga Formation. Generally considered Cretaceous, but grouped with Jurassic-Cretaceous units in compilations. Aquifer: generally artesian.|Quartzose, sub-labile sandstone; minor siltstone, shale, mudstone and coal.|siliciclastic sedimentary rock||intracratonic|N||17-JAN-23
Mooki Coal Member|79335|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||1.5|3.5|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|10-FEB-16|||Proposed publication: AJES.||organic rich sedimentary rock|||N||17-JAN-23
Moolarben Coal Member|24616|||||Yes|Member, phase|Formal|Resvd name published|Defined|State Mine Creek Formation|25699|||Late Permian||||deposition|Late Permian|||||3|3.6|NSW|Yes|38614|40806|C.Bembrick|30-JUN-80|Russell, T.|13-JUL-83|See letter for more information.|Dull coal with minor bright layers, mainly in the lower part, and numerous carbonaceous claystone layers.|organic rich sedimentary rock|||N||17-JAN-23
Moolayember Formation|12187|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Triassic|231|||deposition|Anisian||||||736|QLD|No|44423|48919||||||Dominantly interbedded olive, green-brown and green-grey mudstones and lithic to sub-labile, medium- to coarse-grained sandstones. Lesser grey to black carbonaceous shale, siltstone, mudstone, coal, conglomerate; minor tuff and limestone.|siliciclastic sedimentary rock||intracratonic|N||04-JUL-23
Moolpa granite|80459|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Cunninyeuk granite suite|80441|Upper Devonian|||inferred, geological correlation||Upper Devonian|||inferred, geological correlation|||||No|70718||||||Extends across Swan Hill & Balranald 1:250k map sheet areas.|Interpreted to be S-type granite , with metamorphic aureole.|acid intrusive rock|||Y||17-JAN-23
Moombil Siltstone|38288|Moombil beds|12210|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Coffs Harbour Association|38341|||Westphalian||||deposition|Tournaisian||||||||No|44450|||||||Black massive siltstone, rare lithofeldspathic wacke and granule conglomerate|fine grained siliciclastic rock||accretionary wedge|N||25-AUG-23
Moombooldool Granite|79358|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Aeronian||||intrusion|Aeronian|430||inferred|||||No|72083||Trigg, S. (GSNSW)|26-FEB-16|||Ardlethan 1:100k map sheet area 8229. Very poorly exposed coarse-grained granite. To be published = Probably in a volume of Quarterly Notes of the Geological survey of New South Wales later this year or in 2017.|Fine- to medium-grained, subequigranular to subporphyritic tourmaline-muscovite granite.|acid intrusive rock|||Y||24-JUL-23
Moon Island Beach Subgroup|12215|Moon Island Beach Sub-Group|12212|||Yes|Subgroup|Formal|Other new published name|Briefly described|Newcastle Coal Measures|27861|||Late Permian|||||Late Permian||||||||No|43448||||||Of McKenzie and Britten (1969). Replaced in part by Moon Island Beach Formation, the base of which is raised to top of Awaba Tuff. Formerly of Newcastle Coal Measures. Included Fassifern Coal, Eleebana Formation, Great Northern Coal, Catherine Hill Bay Formation, Wallarah Coal. Apparently reinstated as modified Subgroup (2015): RefID 70647. Used in GSNSW seamless geology dataset 2021.|Polymictic conglomerate, sandstone,siltstone, claystone, black coal and tuff.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||03-SEP-23
Moona Plains Gabbro|75962|Moona Plains Complex|25257|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|Bakers Creek Supersuite|75958|||Cisuralian|289|2.9|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Cisuralian|289|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||GSNSW stratigraphy review (Blevin, Greenfield, Cameron)|17-MAY-11|||Of Bakers Creek Suite. Used in GSNSW seamless geology dataset 2021.|Mafic igneous complex; olivine gabbro, gabbro, diorite, quartz diorite, tonalite, monzogranite and granophyre.|basic intrusive rock|||Y|I-type|17-JAN-23
Moona Vale Conglomerate Member|33759|Moona Vale Conglomerate|35868|||Yes|Member, phase|Formal|Resvd name published|Redefined|Menamurtee Sandstone|33758|||Devonian||||deposition|Devonian||||||||No|23469|66623|Neef G.|27-OCT-99|||Western New South Wales. Of Menamurtee Sandstone in Koonenberry notes (2010).|Massive, clast-supported unit with rounded to angular boulders of well-cemented sandstones, quartzite and less common felsic porphyry, to 1.5 m in diameter; progressive decrease in size northwards; coarse sandstone matrix; rare sandstone lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Moonbah Tonalite|12226|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|41905||||||Hornblende-biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Moonbi Monzogranite|41069|Moonbi Adamellite|27492|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Moonbi Suite|29249|Lower Triassic|247||isotopic, Rb/Sr|intrusion|Late Permian|251.1|1.8|isotopic, Rb/Sr|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.|Coarsely porphyritic biotite - hornblende monzogranite and minor monzonite.|acid intrusive rock|intermediate intrusive rock||Y|I-type|22-AUG-23
Moonbi Suite|29249|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Moonbi Supersuite|36465|Lower Triassic|||||Late Permian||||||||No|38683||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007.  See also Moonbi Plutonic Suite. Comprises two plutons - Moonbi and Bendemeer plutons.|Fractionated, I-type, oxidised granites.|acid intrusive rock|||Y||16-AUG-23
Moonbi Supersuite|36465|Moonbi Suite|29249|||Yes|Supergroup|Formal|Variation of published name|Described|||||Lower Triassic|243|||intrusion|Late Permian|251|||||||No|61783||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007.|High-K hornblende-biotite (+/-augite) I-type granite.|acid intrusive rock|intermediate intrusive rock||Y|I-type|18-AUG-23
Moonbilleen Gabbro|82579|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Jindalee Group|27440|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Gabbro and leucogabbro.|basic intrusive rock|||Y||17-JAN-23
Mooneba Formation|34753|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|22893||||||Age: 3740yrs Bp.|||||N||17-JAN-23
Moonshine Granite|35404|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gooramma Suite|70027|Emsian||||intrusion|Emsian||||||||No|50231||Pogson D.|17-APR-00|||BOOROWA 1:100 000 and GOULBURN 1:250 000 sheet area.|Medium grained, massive, generally equigranular, hypersthene-augite-biotite-hornblende granite to granodiorite. Minor marginal leucocratic, porphyritic granite to microgranite; high to very high magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Moonta Gully Monzogranite|38285|Moonta Gully Adamellite|12261|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moonta Gully Suite|74022|Lopingian||||intrusion|Lopingian|253.6|1.6||||||No|23811|||||||Medium-grained, mildly porphyritic, grey, biotite-hornblende monzogranite|acid intrusive rock|||Y|I-type|21-AUG-23
Mooraback beds|34397|Mooraback Beds|12273|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Macleay Group|10958|||Permian||||deposition|Permian||||||||No|22736||||||Update of Mooraback Beds|Black and grey fine sandstone and siltstone|siliciclastic sedimentary rock|||N||03-SEP-23
Mooral Creek serpentinite|75832|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name. Located in the southern Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Mooral Creek Serpentinite p622 and in figs.|||||N||17-JAN-23
Moorara Granite|12278|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Formal name not intended.|Granite|acid intrusive rock|||Y||17-JAN-23
Moore Creek Limestone Member|12281|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Yarrimie Formation|20896|||Givetian||||deposition|Eifelian||||||60||No|43400||||||Tamworth area. See also Moore Creek Limestone.|Massive biohermal coralline limestone, crinoidal, calcareous sedimentary rocks.|carbonate sedimentary rock||island arc|N||17-JAN-23
Moore Creek Limestone Member, Sulcor Limestone Member|42302|||||Yes|Member, phase|Informal|Variation of published name|Not recorded|Yarrimie Formation|20896|||Givetian||||deposition|Eifelian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Olistostromal limestone lenses|carbonate sedimentary rock|||N||17-JAN-23
Moorilda Monzonite|22380|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||intrusion|Upper Ordovician|440|||||||No|22679|23214|Henderson T. Wyborn D.|19-APR-93|||Blayney 1:100 000 sheet. Intrudes the Blayney Volcanics. Only four known outcrops. Magnetic anomaly suggests the unit is more extensive with depth.|Clinopyroxene monzonite, altered monzonite|intermediate intrusive rock|||Y||17-JAN-23
Moorlands Lignite Member|12289|Moorlands Coal Measures|12288|||Yes|Member, phase|Formal|Other new published name|Defined|Olney Formation|14553|||Rupelian||||deposition|Late Eocene|||||||SA|No|23671|42966|||||Renmark Group.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Moorna Formation|12292|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Lower Pleistocene||||deposition|Piacenzian|||||||NSW|Yes|30994|42966|Gill E.D.|05-SEP-72||||River sands.|regolith|||N||17-JAN-23
Mooroona Granite|22382|Fernleigh Granite|6607|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes||acid intrusive rock|||Y||17-JAN-23
Moppy Road Limestone Member|82580|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Wootton beds|20622|||Carboniferous|||inferred||Carboniferous|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Limestone.|carbonate sedimentary rock|||N||08-SEP-23
Moralana Supergroup|26314|Glenelg River beds""|37555|||Yes|Supergroup|Formal|Resvd name published|Defined|||||Early Cambrian|551|6|||Ediacaran|572|9|||||SA|Yes|38004|38004|C.G.Gatehouse|06-NOV-81|Gatehouse, C.G.|13-JAN-82|Enclose Truro Volcanics. Thought to be Early Cambrian. Younger than 500-600 Ma (detrital zircons).|Shelf and basin carbonates dominate in Hawker and Normanville Groups. Redbeds and sandstones dominate in Lake Frome Group. Very thick metamorphosed sandstone/siltstone sequence in Kanmantoo Group.|sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Morden Formation|23810|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Kayrunnera Group|9352|||Late Cambrian||||deposition|Late Cambrian||||||6||No|41587||Webby B.D.|31-MAR-87||||Hard white medium-grained quartzite with silty laminations; thin limestone lenses.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Morgans Creek Leucomonzogranite|82581|Morgans Creek Monzogranite|73843|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Triassic|240.8|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Middle Triassic|240.8|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|Pinkish, coarse-grained, equigranular to porphyritic (biotite) leucomonzogranite; aplitic, microgranitic, graphic and pegmatitic marginal variants. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Morgans Gully Siltstone|12332|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Lambie Group|10103|||Upper Devonian||||deposition|Devonian||||||||No|32708||||||Bathurst 1:250 000 sheet area.|Predominantly purple siltstone, in thick, strongly cleaved beds or within a monotonous sequence interbedded with thick to medium bedded sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Moripo Dacite|39366|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||eruption|||||||||No|24124|||||||||||N||17-JAN-23
Morkalla Formation|12337|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Millewa Group|28128|||Albian||||deposition|Aptian||||||120|VIC|No|31745|42966||||||Interbedded siltstone, mudstone and minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Morland Granodiorite|37393|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Emsian||||intrusion|Emsian||||||||No|50234||Johnston, A.|15-JUL-02|||GOULBURN  Sheet: 8828 (2002).  (Nearest Town: Marulan).||acid intrusive rock|||Y||17-JAN-23
Morley Member|25266|Morley Formation|12340|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|36413|||||||||||N||17-JAN-23
Mornington Complex|82583|Mornington Diorite|12344|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian|280||isotopic|minimum depositional age|Cisuralian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Age: c.280 Ma (Sr87/Sr86: Hensel, 1982). Based on 87Sr/86Sr analyses of two gabbros, three quartz diorites, and one felsic rock, yielding a date of 280 Ma and initial 87Sr/86Sr ratio of 0.7064. These dates are associated with large errors, and therefore must be regarded as a minimum.|Fine- to medium-grained quartz diorite; lesser gabbro, tonalite and monzogranite.|intermediate intrusive rock|basic intrusive rock||Y|I-type|01-SEP-23
Mornington Suite|74034|||||Yes|Group, Suite|Reserved|Reserved|Unpublished|||||Permian|||||Permian||||||||No|||Blevin, Bultitude & Champion|17-DEC-07|||Blevin, Bultitude & Champion, pers.comm., Nov 2007. New England.|||||Y||17-JAN-23
Moroka Glen Formation|12350|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Delatite Group|21636|||Upper Devonian||||deposition|Upper Devonian||||||300||No|43461||||||Previously included in the former Avon River Group. Geological Survey of Victoria map code: Dadm.|Conglomerate, pebbly sandstone, sandstone, and red and grey mudstone: upward fining sequence; clasts are well-rounded and consist of quartzite, sandstone, vein quartz, chert and minor mudstone in a quartzose or clayey matrix; sparse basalt flows.|siliciclastic sedimentary rock|||N||17-JAN-23
Morpeth Coal Member|82561|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Morpeth Formation|77605|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull and bright-banded coal with sporadic stoney bands; carbonaceous shale with coaly laminae, thin light grey-brown claystone beds, thin siltstone beds, coal has pyritic laminae at base.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Morpeth Formation|77605|Morpeth Seam|12354|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Carbonaceous shale with coaly laminae, light grey siltstone, coal with dull and bright bands & some stoney bands, cintered coal, grey-brown claystone, green-grey aphanitic igneous intrusion(s)|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mortray Hill Granite Complex|33739|Mortray Hill Granite|33415|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|||Bogalong Suite|31620|Lower Devonian|||||Lower Devonian||||||||No|24417||Wallace D.A., Raymond O.|27-APR-99|||Forbes 1:250 000 sheet area.|Fine- to medium-grained, felsic muscovite granite; Medium- to coarse-grained pink-grey, leucocratic, perthitic biotite granite; Coarse-grained, yellow-pink, leucocratic, perthitic, biotite-muscovite granite|acid intrusive rock|||Y|S-type|17-JAN-23
Morundury Porphyries|12364|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|36390|||||||||||N||17-JAN-23
Moruya Suite|12371|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Moruya Supersuite|12372|Upper Devonian||||magmatic crystallisation|Middle Devonian|396.2|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|38822||||||Age: 379Ma. Composed of 6 north-south-trending elongate plutons at the extreme eastern side of the Bega Batholith.|I-type granite. Contains mafic enclaves and clots of mafic minerals which become less abundant as rocks become more felsic.|acid intrusive rock|||Y|I-type|17-JAN-23
Moruya Supersuite|12372|||||Yes|Supergroup|Formal|Variation of published name|Briefly described||||||||||||||||||No|42827|||||||||||Y||17-JAN-23
Moruya Tonalite|28778|Moruya tonalite|12377|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Moruya Suite|12371|Lower Devonian||||intrusion|Lower Devonian||||||||No|35248|||||||Tonalite, granodiorite, biotite granite, monzogranite, diorite, gabbro|acid intrusive rock|||Y||17-JAN-23
Morven Granite|82588|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Koetong Suite|9703|Wenlock|||inferred||Llandovery|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Medium-grained (1-3 mm), subporphyritic granite to granodiorite that contains trace to 1% phenocrysts of 1-2 cm, clay-altered K-feldspar.|acid intrusive rock|||Y|S-type|24-JUL-23
Mosmans Swamp Andesite|12406|Mosman's Swamp Andesites|32976|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||eruption|||||||||No|39666||||||Formerly assigned to the "Volcanic Stage" of the "Kuttung Series" (Osborne, 1922) and then to the  "Gilmore Volcanics" (Roberts, 1961). Defined as Mosman's Swamp Andesites by Rattigan in 1967.||intermediate volcanic rock|||N||17-JAN-23
Mossgiel Granite|38897|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian|423|9|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Silurian|427|7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|70718||Moffitt, B.|14-AUG-03|Meakin, S.|04-SEP-03|Located about 15 kilometres south of Mossgiel on the Cobb Highway between Hay to Ivanhoe. See also informal Mossgiel granite.|Medium to coarse grained, high-level emplaced, quartz-megacrystic garnet-?cordierite-biotite-An25 feldspar-micrographic granite. The granite is relatively melanocratic and S type granite with low quartz and is completely undeformed.|acid intrusive rock|||Y|S-type|17-JAN-23
Mostyn Vale Formation|23812|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Parry Group|14916|||Famennian|||biozone|deposition|Frasnian||||||2000||No|41009||R.E.Brown|16-JAN-87|||Includes Late Devonian vertebrate fossil assemblages.|Pebbly lithic wacke, diamictite, lithic wacke, orthoconglomerate, olistostromal volcanic breccia, rhyodacitic to basaltic lavas, tuffs, agglomerates, rare limestone.|medium-coarse grained siliciclastic rock|igneous volcanic rock|forearc|N||17-JAN-23
Mother Shipton Monzodiorite|22394|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lochkovian||||intrusion|Silurian|||||||NSW|No|22638|22638|Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. Used in GSNSW seamless geology dataset 2023 and GA Alkaline Rocks dataset. Considered to be the geochemical equivalent of the Gidginbung Volcanics.|Green-grey, medium-grained, equigranular pyroxene-monzodiorite with accessory biotite; texture of intergrown clinopyroxene and plagioclase; epidote-chlorite-carbonate altered. I-type.|intermediate intrusive rock|||Y||08-JUN-23
Mount Agony Formation|81166|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|71538|||||||||||N||17-JAN-23
Mount Ainslie Volcanics|12438|Ainslie Volcanics|181|||Yes|Formation, beds|Formal|Variation of published name|Defined|Douro Group|5668|Hawkins Suite|8179|Wenlock||||eruption|Wenlock|||||700||ACT|Yes|39975|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|BMR Bulletin 233. Approved by A. Waltho for NSW 17-MAY-1990. Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group.|Dacitic ignimbrite, minor ashstone, agglomerate and shale; porphyry|acid volcanic rock|||N||17-JAN-23
Mount Alfred Granite|12451|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|33779||||||Age and lithology updated from GSV data (HG, Dec 2005). This granite, along with Forest Creek and Walwa Granite included in Corryong Granite on GSV's 1997 Tallangatta 1:250k, but appears to have been subsequently recognised again as G567.|Two-mica cordierite granite: grey, fine grained and equigranular; abundant small metasedimentary enclaves; S-type; nonmagnetic; weathered|acid intrusive rock|||Y|S-type|06-SEP-23
Mount Allen Granite|12454|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Silurian|422.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|43389|41126||||||Micrographic, microporphyritic muscovite microgranite and subporphyritic biotite monzogranite (S-type)|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Ariah Rhyolite|80568|Mount Ariah Member|80307|||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|Gurragong Group|80567|||Lower Devonian|||||Lower Devonian||||||||No|||Bull, K., Gilmore, P. (GSNSW)|30-JUL-18|||East Riverina Project. Includes informal 'rhyolite lava or shallow intrusion' unit from Cargelligo that has now been extended to the south. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Published in GSNSW seamless geology. Lith desc updated from 2023 version.|Rhyolitic coherent volcanic rocks (commonly flow banded) and associated autoclastic breccias. Subaerial lavas, sub-volcanic intrusions, and autoclastic facies.|acid volcanic rock|||N||27-SEP-23
Mount Arrowsmith Volcanics|12467|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Grey Range Group|73424|||Ediacaran||||eruption|Ediacaran|585.5|3.2|isotopic, U/Pb-Pb/Pb ion probe|||2000|NSW|No|36534|66623|||||Formerly assigned within the Kara beds. Geological Province: Tasman Fold Belt. Now included in the Grey Range Group. Narrow trends of high magnetic intensity, continuous over many kilometres, parallel to sub-parallel and dislocated by fractures.|Transitional alkaline to tholeiitic basaltic metamorphosed lavas - alkali basalt, trachybasalt, trachyte and related intrusives.|metamorphosed basic igneous rock|metamorphosed igneous rock||N||28-AUG-23
Mount Arthur Coal Member|12468|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Mount Arthur Seam|12472|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Mount Arthur Granite|12470|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Mount Arthur Suite|31548|Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Mount Arthur Suite|31548|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Mount Barney Central Complex|12484|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Paleogene||||eruption|Paleogene||||||||No|44778|44778|||||Mapped as Mount Barney Volcanic field (shown as:Tbv1, Tbv2, Tbv3 and Tbb) on the Warwick-Tweed Heads 1:250K metallogenic map - Provisional Issue 2001. Shown as Mount Barney central complex, Mount Barney Granophyre in Geology of Queensland 2013, p640. Mount Barney Igneous Complex preferred by NSW in 2021, but Mount Barney Central Complex preferred by GSQ in 2022.|Granophyre, rhyolite, minor trachyte, volcaniclastics, rhyolite intrusion, gabbro, dolerite|acid volcanic rock|||N||17-JAN-23
Mount Barney beds|12490|Mount Barney Beds|12482|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||Pennsylvanian||||deposition|Pennsylvanian||||||||No|44372||||||Coffs Harbour Block (Yarrol Province). Yarrol Province outlier (Geology of Queensland 2013, p350-1)|Lithic and feldspathic sandstone, conglomerate, siltstone, mudstone; minor acid volcanics, calc-silicate rocks|medium-coarse grained siliciclastic rock|acid volcanic rock|forearc|N||17-JAN-23
Mount Boorithumble Member|35609|||||Yes|Member, phase|Reserved|Reserved|Reserved|Ural Volcanics|18968|||||||deposition|||||||||No|||Meakin S.|13-JUN-00|||Cargelligo 1:250 000 map sheet area.|||||N||17-JAN-23
Mount Boppy Conglomerate Member|27498|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lower Devonian||||deposition|Lower Devonian||||||||No|35287||||||Kopyje Shelf. Basal member of Baledmund Formation.|Massive and bedded conglomerate, arenite and quartzite. Sedimentary breccia with sub-angular fragments of vein quartz, quartz schist, and phyllite.|siliciclastic sedimentary rock|||N||28-AUG-23
Mount Boss Tonalite|82589|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Carrai Supersuite|82123|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Medium-grained, porphyritic to equigranular tonalite, and possibly granodiorite, and monzogranite porphyry.|acid intrusive rock|||Y|I-type|16-AUG-23
Mount Brace Coal Member|77587|Mount Brace seam|77261|||Yes|Member, phase|Reserved|Variation of published name|Reserved|||||||||deposition|||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Said to be of  Charbon Subgroup, but what formation?|Coal: Thin, uneconomic coal member|organic rich sedimentary rock|||N||17-JAN-23
Mount Bright Rhyolitic Ignimbrite Member|26048|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Pokolbin Hills Volcanics|26106|||Pennsylvanian||||magmatic crystallisation|Pennsylvanian|311.2|1.8|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|29915|29915||||||Relatively crystal-poor, fairly fine-grained, pumice-rich, densely welded ignimbrite. Dominant phenocrysts are quartz and plagioclase with less K-feldspar. Very high emplacement temperature, and a subaerial setting indicated.|acid volcanic rock|||N||02-JUN-23
Mount Bullaganang Leucosyenogranite|82585|Mount Bullaganang Granite|69203|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Mount Bullaganang Supersuite|82586|Cisuralian||||magmatic crystallisation|Cisuralian|291.5|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021.|Pale pink to pale brownish pink, medium-grained, uneven-grained, leucocratic biotite syenogranite. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Bullaganang Supersuite|82586|Bullaganang Supersuite|74065|||Yes|Supergroup|Informal|Variation of published name|Described|||||Cisuralian|291||inferred, geochemical correlation||Cisuralian|298||inferred, geochemical correlation|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine- to medium-grained, pale pink to pale grey (fresh), inequigranular to porphyritic, commonly leucocratic biotite monzogranite-syenogranite. I-type.|acid intrusive rock|||Y||17-JAN-23
Mount Byar Ignimbrite Member|40756|Mount Byar|39891|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Pennsylvanian|||inferred|eruption|Pennsylvanian|||inferred||7|40|NSW|Yes|50613|50613|Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|Reserved as Mount Byar.  Volcanic member of the Kaputar package (informal grouping of stratigraphically recognisable distinctive, mappable units.  Age: Late Namurian?|Varies from fine, purple, welded, rhyolitic ignimbrite with small phenocrysts of feldspars, and pumice fragments; to coarser, purple to red, unwelded to poorly welded ignimbrite further south.Groundmass of both types is spherulitic to micropoikilitic.|acid volcanic rock|||N||17-JAN-23
Mount Carnham Granodiorite Phase|82422|Mount Carnham Granodiorite|82420|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Dumbudgery Creek Complex|82419|Late Permian|||||Late Permian|255|1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021. Age from previous name.|Pink or pink-grey, medium-grained, equigranular, biotite-hornblende granodiorite with minor tonalite and monzogranite.|acid intrusive rock|||Y|I-type|21-AUG-23
Mount Carrington Rhyolite|26049|Mount Carrington rhyolite|25273|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Permian||||eruption|Carboniferous|||||||NSW|No|33766|33476|||||See also Drake Volcanics.||acid volcanic rock||forearc|N||17-JAN-23
Mount Charlotte Silcrete|12582|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Pliocene|||||Late Miocene||||||||No|35187|||||||||||N||17-JAN-23
Mount Cole Formation|33416|Pipe Formation|26845|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Hervey Group|25947|||Frasnian||||deposition|Frasnian||||||650||No|23217|24417|Young G.C.|27-APR-99|||Forbes 1:250 000 sheet area.  Previously also referred to as "Nyrang Formation".  Thickness: 344 in type section. Note: Pipe Formation continues to be used  in the Bathurst and Narromine 1:250k areas.|Red, green and buff shale, minor sandstone.||||N||21-JUL-23
Mount Dangar Basalt|82591|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Rhaetian|||inferred||Rhaetian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Fresh basalt with well developed collumnar joints.|basic volcanic rock|||N||23-AUG-23
Mount Darling Basalt|72573|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Ordovician|||inferred, intrusive relationship|eruption|Ordovician|||inferred||||NSW|No|64238||Thomas, O. (GSNSW)|10-OCT-06|||For use on map sheet 8629; nearest town is Wyangala.  Published in GOULBURN NSW 1:250K map and Explan. Notes (2007?[ actually 2013, 2012]). Described as 'Massive to pillow basalt  exposed on Mount Darling, south of Wyangala Dam'.|Green to black, massive to pillowed, fine-grained basalt; slightly porphyritic in places.|basic volcanic rock|||N||17-JAN-23
Mount Daubeny Formation|12623|Cootawundy Beds|26494|||Yes|Formation, beds|Formal|Variation of published name|Defined|Winduck Group|25683|||Lower Devonian|413.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|minimum depositional age|Late Silurian|425|7|isotopic, U/Pb-Pb/Pb ion probe|||7000|NSW|Yes|42121|42298|||NSW SNSC|27-FEB-91|Also supersedes Mount Daubeny Beds. See also misspelling Mount Daubney Beds.  An intramontane sequence in the Mount Daubeny Basin.|Pale red, maroon, grey and greenish-grey feldspathic sandstone with subordinate siltstone and conglomerate; a 6m thick sequence of orthoquartzite interbedded with grey arenite and siltstone; matrix-supported conglomerate with mainly dacitic clasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Dijou Volcanic Member|77051|Mount Dijou Volcanics|27501|||Yes|Member, phase|Formal|Variation of published name|Fully described|Narrama Formation|73364|||Floian||||eruption|Floian||||||||No|67322||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW.|Deformed and altered pillow basalt; gabbro, andesite, minor rhyolite, hyaloclastite breccia, chert and rare quartzite|basic volcanic rock|basic intrusive rock||N||17-JAN-23
Mount Dromedary Igneous Complex|12644|Mount Dromedary igneous complex|12652|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Albian|100|6|isotopic, K/Ar|intrusion|Albian|108|3.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|46574||||||See also Mount Dromedary Complex. Paper (refid 66889) has provided an analysis showing this unit to be significantly older (108.8+/-3.9Ma) than a widely accepted value (98.8+/-0.6Ma).|Monzonite, nepheline monzonite, quartz diorite, some mafic volcanics.|intermediate intrusive rock|||Y||15-AUG-23
Mount Durham Tuff Member|22411|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Seaham Formation|16708|||Kasimovian|306.5|2.1||eruption|Moscovian|311|0||||354||No|44244||J.Roberts|24-APR-85|||Age: 306.5+/-2.1Ma. Geological Province: Cranky Corner Basin. Lithology groups updated from GSNSW seamless geology dataset 2021.|Tuffaceous arenite, felsic tuff. Coarse-grained, granular, pebbly, porphyritic ignimbrite. Rhyolite to rhyodacite.|acid volcanic rock|||N||02-JUN-23
Mount Duval Monzogranite|41070|Mount Duval Adamellite|12662|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Mount Duval Suite|67902|Lopingian||||intrusion|Lopingian|253.7|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly in the Uralla Suite, now the Uralla Supersuite. The Newholme Monzogranite has been distinguished (2010) in the southern part of what was a larger Mount Duval Monzogranite (RefID 66660).|Medium to coarse-grained, massive & non-foliated mesocratic, in places K-feldspar porphyritic, hornblende-biotite monzogranite. Enclaves: igneous 66%, metasedimentary 26%, quartz 8%.|acid intrusive rock|||Y|I-type|19-OCT-23
Mount Duval Suite|67902|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Uralla Supersuite|67894|Lower Triassic|||||Late Permian||||||||No|70217||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Age range from constituent units.|Monzogranite to granodiorite.||||Y||22-AUG-23
Mount Ephraim Granodiorite|12695|Mount Ephraim Granite|27502|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Mount Ephraim Suite|73896|Wuchiapingian|255.3|1.3||intrusion|Kungurian||||||||No|42376||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov 2007.  Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly in the Nundle Suite.|Trondhjemite, granodiorite.|acid intrusive rock||extensional continental backarc|Y|I-type|10-AUG-23
Mount Euriowie pegmatite|12700|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39652|||||||||||Y||17-JAN-23
Mount Exmouth Formation|81943|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Green, white weathering, basalt to basaltic trachyandesite, porphyritic to aphanitic coherent and volcaniclastic units.|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
Mount Fairy Group|26052|Mount Fairy Beds|12704|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Lochkovian||||deposition|Pridoli|||inferred||||NSW|Yes|39800|30735|Felton E.A.||Bryan, J.H.|27-OCT-75|To be used for the new GOULBURN 1:250 000 sheet (2006) also. Intruded by the Early Devonian Boro Granite. Interfingered with the Campbells Group. Age from constituent units.|Rhyolite to dacite flows and intrusives, dacitic tuff and breccia, rhyodacitic ignimbrite, pyroxene andesite, basalt, mafic volcanic breccia, felsic and mafic volcaniclastic conglomerate and sandstone, quartzose sandstone, siltstone and shale, limestone.|acid volcanic rock|siliciclastic sedimentary rock|oceanic backarc|N||17-JAN-23
Mount Flakney Granite|26760|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Koetong Suite|9703|Silurian||||intrusion|Silurian|432.3|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||Originally of Kyeamba Suite. Later considered of Koetong Suite. See also RefID 67060 p503, 505. Shown as Kyeamba Suite in 2013 GSNSW list. Shows a high K anomaly in airborne radiometric data.|S-type, felsic, fractionated granite|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Foster Monzonite|32376|Mount Foster Granite|12716|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|43277|||||||Leucocratic, porphyritic, high level, unfractionated, A-type quartz monzonite with mafic xenoliths. Well jointed with minor alteration along joints and fractures.|acid intrusive rock|||Y||17-JAN-23
Mount Frome Limestone|12721|||||Yes|Formation, beds|Formal|Other new published name|Defined|Kandos Group|29513|||Givetian||||deposition|Emsian|||biozone|||238||No|43461|23170|||||Defining ref (Dubbo Explan Notes, 1999) makes no reference to underlying unit except in Fig 3, p7. Basal contacts are obscured in the Dubbo 1:250 000 sheet area. Said to include Emsian vertebrate fossil fauna in 1993 reference.|Limestone, calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Mount George serpentinite|75830|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name for serpentinites near Mt George township. Located on SW margin of Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Mt George Serpentinite in figs|||||N||17-JAN-23
Mount Gibraltar Microsyenite|31205|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Upper Jurassic|150||||Middle Jurassic|165|||||||No|43491||||||See also Gibraltar Syenite, and variations including "Mount Gibraltar microsyenite" with U/Pb SHRIMP Age: (Inherited, not crystallisation) 325.4 +/- 4.1 Ma.|||||Y||17-JAN-23
Mount Gingenbullen Tholeiite|77580|Gingenbullen Dolerite|7250|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Jurassic|||||Jurassic||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021. Differnent unit to Gingenbulen Dolerite, also used in GSNSW seamless geology 2021.|Medium- to fine-grained, dark holocrystalline tholeiite, ophitic texture, with magnetite and anomalous olivine; characterised by columnar jointing|igneous volcanic rock|||N||17-JAN-23
Mount Gipps Igneous Suite|35739|||||Yes|Group, Suite|Reserved|Reserved|Reserved||||||||||||||||||No|||Stevens B.P.J.|15-FEB-01|||To include Rasp Ridge Gneiss and Hores Gneiss. Of Broken Hill Group age.|||||Y||17-JAN-23
Mount Halfway Volcanics|23819|The Peaks Porphyry""|18046|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Pragian|408.6|3.6|isotopic, U/Pb-Pb/Pb ICP-MS|eruption|Ludlow|422.8|2.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||2000|NSW|No|37772|41821|E.Scheibner|15-OCT-80|||Radiometric age from Bull et al. (2008) of 411+/-5 Ma said to be from Mount Hope Volcanics, is an average from 3 separate samples of Mount Halfway Volcanics (as per Mt Allen 1:100 000 sheet  (1985). The  individual samples give ages of : 415.3+/-4.7 Ma (KB426), 408.6+/-3.6 Ma (KB511B), 409.5 +/-7 Ma (KB502).|Rhyolite to dacitic lavas, ignimbrites, igniturbidites, tuffs, agglomerate interbedded with arenite, siltstone.|acid volcanic rock|siliciclastic sedimentary rock||N|S-type|04-SEP-23
Mount Hannibal Granite|70240|Mount Hannibal Granodiorite|36775|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Arthursleigh Suite|31547|Emsian||||intrusion|Pragian||||||||No|50234||Dennis Pogson - NSW Geological Survey|07-FEB-02|||GOULBURN 100K Sheet.  Part of the Marulan Batholith. Name altered to reflect petrography.|Grey, medium-grained, massive, equigranular, biotite-hornblende granite; weakly porphyritic at margins. High to very high magnetic susceptibility.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Helen Rhyodacite Member|70502|Mount Helen|41419|||Yes|Member, phase|Formal|Other new published name|Defined|Currabubula Formation|5055|||Pennsylvanian||||eruption|Pennsylvanian||||||||No|62095|62095|||||Reserved as Mount Helen. Thickness at type locality: 20m. In the Werrie block/Tamworth Belt.|Grey to purple rhyodacite lava containing coarse phenocrysts of plagioclase, some aggregated, and minor opaque minerals. Fine, felted feldspars in groundmass are flow foliated.|acid volcanic rock|||N||17-JAN-23
Mount Hercules Sandstone Member|12795|||||Yes|Member, phase|Formal|Resvd name published|Defined|Bringelly Shale|2570|||Middle Triassic||||deposition|Middle Triassic||||||44|NSW|Yes|35690|39626|Stroud W.J., after Dyer (1966)||NSW SNSC|27-MAY-75||Fine- to medium-grained quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Mount Hook Rhyolite Member|37913|Mount Hook Rhyolite|37315|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Rocky Creek Conglomerate|16236|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|||acid volcanic rock|||N||17-JAN-23
Mount Hope Group|25281|Mount Hope Volcanics|12801|||Yes|Group, Suite|Formal|Variation of published name|Defined|Cobar Supergroup|27673|||Lower Devonian|408.6|3.6|isotopic, U/Pb-Pb/Pb ICP-MS|deposition|Late Silurian|||||||NSW|No|37772|41528|||||Massive Early Devonian sulphide mineralisation is associated with this unit. Radiometric age from Bull et al. (2008) of 411+/-5 Ma is an average from 3 separate samples of Mount Halfway Volcanics (as per Mt Allen 1:100 000 sheet  (1985). The  individual samples give ages of : 415.3+/-4.7 Ma (KB426), 408.6+/-3.6 Ma (KB511B), 409.5 +/-7 Ma (KB502). The oldest part of this Group (Mount Kennan and Double Peak Volcanics) have not yet been radiometrically dated [CEB Jan2017].|Massive to flow banded, spherulitic, vesicular and mottled, rhyolite and rhyodacite lavas, marine 'igniturbidite' ashflow tuffs, volcanic and lithic sandstone, conglomerate, siltstone, mudstone and breccia; rare basalt|acid volcanic rock|medium-coarse grained siliciclastic rock||N|S-type|03-AUG-23
Mount Hutton Formation|12809|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boolaroo Subgroup|2220|||Lopingian||||deposition|Lopingian||||||||No|43447||||||This name was dropped [1999]. Formerly of Boolaroo Subgroup, Newcastle Coal Measures. See also Mount Hutton Tuff member, which seems to be a different unit, a little higher in the sequence. Mount Hutton Formation reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Interbeds of sandstone with shale.|siliciclastic sedimentary rock|||N||03-SEP-23
Mount Hutton tuff|38240|Mount Hutton Tuff|38214|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||||||||eruption|||||||||No|23717||||||Used in 2006. See also Mount Hutton Tuff member.|||||N||17-JAN-23
Mount Jellore Complex|12836|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|32187|||||||||||N||17-JAN-23
Mount Johnstone Formation|12849|Mount Johnstone Beds|28802|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||650||No|43440|44244|||||See also Lexicon. See also Mount Johnson Formation, NSW. Included former Italia Road and Karuah Formation rocks, but Karuah Fm later reinstated as separate unit. Balickera Conglomerate also equiv to lower Mount Johnstone Fm, but may be retained (?as a Member)|Boulder conglomerate, lithic arenites with interbeds of laminated sandstone, shales, carbonaceous shales, poor coal, tuffs and minor cherts|siliciclastic sedimentary rock|organic rich sedimentary rock|forearc|N||17-JAN-23
Mount Johnstone Formation - conglmerate|82909|Mount Johnstone Formation|12849|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mount Johnstone Formation|12849|||Visean|||inferred||Visean|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as Mount Johnstone Formation (lower) - conglomerate, Cutj_c. May be  the same as Balickera Conglomerate Member, stratno 77082?|Polymictic boulder conglomerate with grey, pumiceous rhyolitic tuff and ignimbrite.|medium-coarse grained siliciclastic rock|acid volcanic rock||N||17-JAN-23
Mount Johnstone Formation - sandstone|82910|Mount Johnstone Formation|12849|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mount Johnstone Formation|12849|||Visean|||inferred||Visean|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as Mount Johnstone Formation (upper) - sandstone, Cutj_s.|Graded, massive, lithic arenite with interbeds of fine, laminated sandstone, shale, carbonaceous shale, poor coal and minor chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Jonblee Leucomonzogranite|38269|Mount Jonblee Leucoadamellite|12852|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kingsgate Suite|82536|Lopingian|||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|254.6|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|23811||||||Includes the Petries Sugarloaf mass. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Moonbi Supersuite; then in the Bolivia Range Suite of the Stanthorpe Supersuite. Of Kingsgate Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Medium to coarse grained, saccharoidal, pale pink to buff coloured leucogranite; includes to buff leucomonzogranite spotted with occasional biotite flakes. Characteristically saccharoidal (includes Petries Sugarloaf mass)|acid intrusive rock|||Y|I-type|27-AUG-23
Mount Kelly Granite|77135|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pragian|408.8|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lochkovian|||||||NSW|No|70210|71345|Hegarty, R. (GSNSW)|05-MAY-11|||Type location: Lat -30.2049 Long 146.8881; GR489224 6658510. Named for Mount Kelly (GR488846 6654971). Described by Brunker (1969) from tors of biotite-bearing leucocratic granite near Moorwari homestead. Referred to informally as Mount Kelly granite by Proksch (1982), Black (2006), Blevin (2011) and Hegarty (2011). Exposure is restricted to approximately 4 x 2 km including Mount Kelly and the type locality. Exposed as whalebacks, tors and low out outcrop at Mount Kelly and along the Gongolgon-Brewarrina road (Blevin 2011). Magnetic anomaly is a ellipsoid shape 11km E-W and 5Km N-S. Subdued magnetic anomaly, suggesting a lower magnetic signature than granites of the Tarcoon Suite to the west or thicker floodplain cover.|Medium grained, equigranular grey/pale pink syenogranite, with dark quartz, grey plagioclase, very pale pink alkali feldspar and biotite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Kennan Volcanics|28308|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Lochkovian||||eruption|Lochkovian||||||1000|NSW|No|37772|41126|E.Scheibner|15-OCT-80|||Basal Mount Hope Group. Contains clasts of metasedimentary rock purportedly derived from the Thule Block [Granite].|Plagioclase phyric dacitic and quartz feldspar phyric rhyolitic lavas; intercalated with volcanic crystal-lithic breccia, sandstone, siltstone and other non-volcanic feldspathic litharenite to sublitharenite.|acid volcanic rock|siliciclastic sedimentary rock||N|A-type|17-JAN-23
Mount Knobby Formation|12872|||||Yes|Formation, beds|Formal|Variation of published name|Described|Kopyje Group|28654|||Lochkovian||||deposition|Pridoli||||||3000||No|9548||||||Within Cobar Supergroup.|Parallel-laminated and ripple cross bedded, partly graded, medium- to fine-grained, lithic-quartz and lithic sandstone, siltstone and massive polymictic pebble conglomerate; very minor crystal tuff|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Knowles Group|30853|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Famennian||||deposition|Frasnian||||||2020||No|22529|23170|Colquhoun G. Meakin S.|30-JAN-97|||Not related to Mount Knowles Limestone, Mount Knowles Limestone Member. Defining ref (Dubbo Explan Notes, 1999) gives age of Late Devonian. Frasnian to Famenian age comes from another strat article.|Purple polymictic conglomerate to pebbly sandstone, red-purple quartz sandstone; thick- to thin-bedded lithic quartz and quartz sandstone, fossiliferous in part; brown-grey mudstone, shale|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mount Leonard Formation|23823|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian|||||||NSW|No|40805|40805|P.Wootton|20-SEP-84||||Massive sandstone, conglomerate, interbedded thin coal seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Mount Lewin Limestone Member|12887|||||Yes|Member, phase|Formal|Resvd name published|Defined|Vandon Limestone|27304|||Upper Ordovician||||deposition|Upper Ordovician||||||30|NSW|Yes|38219|38219|Webby B.D., Packham G.H.||Russell, T.|12-FEB-82|Cliefden. Previously "grey unit" of Percival (1976). Lithology description from GSNSW seamless geology 2023.|Grey, massive, burrow-mottled lime mudstone and wackestone with shelly fragments, algal remains, abundantly fossiliferous.|carbonate sedimentary rock|||N||28-SEP-23
Mount Lidgbird Basalt|12893|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Lord Howe Volcanic Complex|83554|||Messinian|4.4|.13|isotopic, K/Ar|eruption|Messinian|7.9|.18|isotopic, K/Ar||875||NSW|Yes|61946||McDougall I., Embleton B.J.J., Stone D.B.||||Max Age: 6.4 Ma (from 1981 ref). Used in GSNSW Seamless Geology 2021.|Porphyritic basalt (mainly olivine with plagioclase and pyroxene crystals) basalt and aphyric basalt tabular, lava flow deposits up to 30 m thick. Sporadic columnar jointing, some basalt flows and very sparse tuffs.|basic volcanic rock|||N||25-JUL-23
Mount Lindesay Monzogranite|82590|||||Yes|Formation, beds|Formal|Other new published name|Described|||Stanthorpe Supersuite|73988|Middle Triassic|248.7|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Late Permian|||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Composite unit comprising pale pink, texturally and compositionally heterogeneous biotite-(hornblende) monzogranite-syenogranite; leucocratic variants locally prevalent.|acid intrusive rock|||Y|I-type|19-OCT-23
Mount Mackenzie Monzogranite|82592|Mackenzie Leucoadamellite|10946|||Yes|Formation, beds|Informal|Other new published name|Fully described|||Bolivia Range Suite|73987|Lower Triassic|251.7|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|251.7|2.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication NOT related to Mount Mackenzie Granite in Bowen area, Qld.|Pinkish, coarse-grained, seriate to porphyritic hornblende-biotite leucocratic monzogranite. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Mount Manara Conglomerate|28804|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Mulga Downs Group|26063|||Upper Devonian||||deposition|Upper Devonian||||||||No|43379|||||||Conglomerate, sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Marlay Monzogranite|82594|Mount Marley Monzogranite|82593|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Severn River Suite|82595|Middle Triassic|||inferred||Middle Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Spelling corrected form 2017.|Pale grey to pale pink, fine-grained, moderately porphyritic biotite monzogranite containing numerous plagioclase phenocrysts.|acid intrusive rock|||Y|I-type|19-JUL-23
Mount Marsden Claystone|12914|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nile Subgroup|27092|||Late Permian||||deposition|Late Permian||||||19|NSW|No|43360|40806|||||Formerly (wrongly) shown as also occurring in QLD.|Thin massive limestones, dolomite, claystone, siltstone; few pebble horizons.|carbonate sedimentary rock|||N||17-JAN-23
Mount Merrere Conglomerate|78380|Merrere Conglomerate|11701|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|Cobar Supergroup|27673|||Lower Devonian||||deposition|Lower Devonian||||||||No|69002||||||Originally Merrere Conglomerate. Reduced to Merrere Conglomerate Member of the Ballast Formation, Girilambone Group from ~1998 to 2012, but now upgraded again as the Mount Merrere Conglomerate of the Cobar Supergroup. Is name change accidental or deliberate?|Conglomerate includes clasts of quartzite, chert and sandstone.|siliciclastic sedimentary rock|||N||03-AUG-23
Mount Misery Granite|12933|Mount Misery Adamellite""|34291|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Mount Misery Suite|31612|Late Silurian||||intrusion|Late Silurian||||||||No|42726|23214|||||Wyangala Batholith. NOT related to Mount Misery Granite (VIC) or Mount Misery (QLD). Originally named Mount Misery Adamellite. Intrudes the Adaminaby Group.|Biotite granite, contaminated tonalite, microdiorite.|acid intrusive rock|intermediate intrusive rock||Y|I-type|01-AUG-23
Mount Misery Suite|31612|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Mount Mitchell Monzogranite|38283|Mount Mitchell Adamellite|12936|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bungulla Supersuite|82122|Lower Triassic|243||isotopic, Rb/Sr|intrusion|Late Permian|253.7|1.5|isotopic, Rb/Sr|||||No|23811||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Moonbi Supersuite, then in Stanthorpe Suite of the Stanthorpe Supersuite. Of Bungulla Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Coarse-grained, porphyritic to equigranular, biotite-hornblende monzogranite and leucogranite.|acid intrusive rock|||Y|I-type|18-AUG-23
Mount Murray Branch Formation|12955|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Cooleman Group|4525|||Late Silurian||||deposition|Late Silurian||||||||No|12185|||||||Fossiliferous thin-bedded limestone, chert, siltstone, calcareous siltstone, shale.|sedimentary rock|||N||17-JAN-23
Mount Naman Formation|81948|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Pale orange-white, fine-grained porphyritic to equigranular trachydacite to rhyolite coherent and volcaniclastic rocks.|intermediate volcanic rock|acid volcanic rock||N||17-JAN-23
Mount Nebo Monchiquite|12964|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Cretaceous|||||Cretaceous||||||||No|36220||||||Also shown on the mapface of the 1:100K Southern Coalfields map, depicted as Tnm.|Monchiquite (sills), with euhedral to sub-hedral titanaugite and hornblende, mainly with sub-ophitic intergrowth, opaques, biotite and minor altered olivine (<0.15mm), in an interstitial groundmass of nepheline and needles of titanaugite and opaques|basic volcanic rock|||N||26-SEP-23
Mount Norman Leucomonzogranite|82597|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Amiens Suite|82284|Middle Triassic|||inferred||Middle Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|Pale pink to pale brown, or brown to red-brown, medium- to coarse-grained (groundmass), strongly, coarsely porphyritic, biotite leucomonzogranite to leucosyenogranite.|acid intrusive rock|||Y|I-type|25-AUG-23
Mount Ogilvie Formation|26055|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plains Subgroup|26639|||Late Permian||||deposition|Late Permian|||||||NSW|No|29942|40805||||||Sandstone, siltstone, carbonaceous siltstone, minor claystone; two named coal seams.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Olive Diorite|73697|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Llandovery|432||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Ordovician|445||inferred, underlying unit|maximum depositional age||||No|63286|||||||Consists of quartz, hornblende and plagioclase-phyric diorite.|intermediate intrusive rock|||Y||17-JAN-23
Mount Olive Formation|12987|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|45090|||||||||||N||17-JAN-23
Mount Oxley Formation|34470|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Mulga Downs Group|26063|||Upper Devonian||||deposition|Middle Devonian||||||||No|22768||||||Appears in RefID 69635: not to be confused with Oxley Metamorphics (also Devonian in NSW). Nearby unrelated unit, called Mount Oxley Granite, is an invalid name.|Includes sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Painter Volcanics|24403|Mount Painter Porphyry|12996|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Douro Group|5668|Hawkins Suite|8179|Wenlock||||eruption|Wenlock|430.7|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||1000|ACT|Yes|35325|42820|Abell, R.S. (after Opik 1958)|29-OCT-90|Brakel, A.|26-OCT-90|Defined in BMR Bulletin 233. Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group [2012].|Dacitic ignimbrite with lithic xenoliths and dacitic autoliths, tuffaceous sandstone and siltstone, minor tuff and ashstone|acid volcanic rock|||N|S-type|17-JAN-23
Mount Pleasant Basalt Member|31723|Mount Pleasant Basalt|13034|||Yes|Member, phase|Formal|Variation of published name|Defined|Forest Reefs Volcanics|6819|||Sandbian|||inferred, overlying unit|eruption|Sandbian|||inferred, underlying unit|||300||No|24268|22679|||||Blayney Area. Not related to Mount Pleasant Granite, NSW or to Mount Pleasant Porphyry, NSW & ACT. Supersedes Mount Pleasant Volcanics. Previously of Weemalla Formation. Age of emplacement: inferred from early Darriwillian detrital zircons in Coombing Formation and poorly preserved Late Darriwillian to late Gisbornian graptolites in overlying black mudstone facies RefID 63286 (2007). Is once again attributed to the Weemalla Formation in 2013 (RefID 70297): surely a mistake?|Porphyritic trachybasalt, pillow lava.|basic volcanic rock|||N||17-JAN-23
Mount Pleasant Limestone Member|13039|||||Yes|Member, phase|Formal|Other new published name|Described|Yessabah Limestone|25672|||Cisuralian||||deposition|Cisuralian||||||||No|47059||||||INVALID NAME. "Mount Pleasant" already used in NSW, WA, ACT and VIC! Lithology description from GSNSW seamless geology 2023.|Limestone, calcareous mudstone.|carbonate sedimentary rock|||N||28-SEP-23
Mount Poole Monzogranite|76985|Mount Poole Adamellite|22441|||Yes|Formation, beds|Formal|Variation of published name|Described|||Wallagaraugh Suite|25586|Emsian|402.5|2.6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Silurian||||||||No|69801||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards.|Coarse monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Rivers Ignimbrite Member|26056|Mount Rivers Member|13066|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||71|NSW|No|31228|31228|||||In part formerly mapped as Martins Creek Andesite.|Brown to purple dacitic ignimbrite with interbedded volcanic breccia, sandstone siltstone and chert|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Royal Formation|30984|Mount Royal Schist|22442|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Tottenham Subgroup|30980|||Darriwilian||||deposition|Tremadocian||||||1000||No|43441|22831|||||Age: ?Early Ordovician Parent:Tottenham Subgroup.|Basic schist with pods of banded magnetite quartzite.|metamorphosed basic igneous rock|||N||17-JAN-23
Mount Royal Volcanics|83198|Mount Royal Basalt|69615|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lutetian|43.4|.7|isotopic, K/Ar||Selandian|61|.2|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. Said to be of invalid name Mount Royal Vlocanic Complex. The oldest K-Ar age is 61.0 +/- 0.2, with 6 additional K-Ar ages falling between 54.7 +/- 1.4 and 43.4 +/- 0.7.|Flat-lying olivine basalt, hawaiite, nephaline benmoreite, and teralite flows with some intrusions of theralite and teschenite. Rare tholeiitic flows at the base of the sequence.|basic volcanic rock|||N||17-JAN-23
Mount Russell Volcanics|69821|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Delungra Volcanic Suite|69824|Early Miocene|19|||eruption|Chattian|22.6|.5|isotopic, K/Ar|||200||No|63347|63347|Dawson, M. (DPI, NSW)|15-NOV-05|||For Sheet 9038; nearest town is Delungra.|Quartz-bearing tholeiitic basalt; dolerite (lavas and plugs) and minor volcaniclastic deposits, claystone and rare diamond-bearing gravels.|basic volcanic rock|||N||27-APR-23
Mount Solitary formation|13104|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34449|||||||||||N||17-JAN-23
Mount Stromlo Granite|13115|||||Yes|Formation, beds|Formal|Other new published name|Described|||Bathurst Supersuite|31449|Carboniferous||||intrusion|Carboniferous||||||||No|42712||||||Oberon area.|Pink, fine to coarse-grained, porphyritic biotite granite|acid intrusive rock|||Y||17-JAN-23
Mount Susannah Conglomerate|34614|Mount Susannah Conglomerate Member|13124|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kopyje Group|28654|||Lochkovian||||deposition|Pridoli||||||500||No|22831||||||Variation of Mount Susannah Conglomerate Member. Formation rank in Narromine area. Basal member of Baledmund Formation in Gindoono 1:100 000 sheet area. Includes conglomerate outcrops previously identified as Condobolin Formation. See Narromine 1:250K 2nd edition notes p38 [advised 14-FEB-2018 by GSNSW].|Coarse lithic conglomerate and minor coarse grained lithic sandstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mount Terrible Volcanic Complex|69972|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Cisuralian||||eruption||300|8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|61801|||||||||||N||17-JAN-23
Mount Thorley Formation|23836|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Jerrys Plans Subgroup|8943|||Late Permian||||deposition|Late Permian|||||||NSW|No|40805|40805|P.Wootton|20-SEP-84||||Sandstone, siltstone and coal seams.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Tomah basalt|13145|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|43344||||||||basic volcanic rock|||N||17-JAN-23
Mount Unicorn Porphyry|37765|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G582|Pale cream to buff coloured, quartz-feldspar porphyry; bipyramidal quartz phenocrysts and altered feldspar; patchily to pervasively altered; consists of nonmagnetic and magnetic phases|acid intrusive rock|||Y||17-JAN-23
Mount View Range Granodiorite|13171|Mount View Granodiorite|13170|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Mississippian||||intrusion|Mississippian|||||||NSW|No|29915|29915|||||Lithology description from GSNSW seamless geology 2023.|Grey, medium-grained granodiorite containing plagioclase, quartz, orthoclase, biotite, hornblende and rare augite. I-type mineralogy.|acid intrusive rock|||Y||28-SEP-23
Mount View Sandstone|13172|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|42214||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Mount Vincent Formation|13173|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|33867|||||||||||N||17-JAN-23
Mount Wagra gneiss|13177|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|34221|||||||||||N||17-JAN-23
Mount Wallop Quartzite Member|13178|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|30261|||||||Quartzite horizon with pebbles and cobbles.||||N||17-JAN-23
Mount Walton Porphyry|26059|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|42566|42566||||||I-type. Massive medium-grained crowded pink two-feldspar porphyry typically with accessory fluorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Warning Central Complex|13184|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Cenozoic||||intrusion|Cenozoic||||||||No|43881||||||Incorporates the Mount Nullum Igneous Complex.|Syenite, peralkaline granite, microgranite, monzonite, dolerite; rhyolite, basalt|acid intrusive rock|acid volcanic rock||N||17-JAN-23
Mount Woolooma lamprophyre|13244|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|39623|||||||||||Y||17-JAN-23
Mount Woowoolahra Granite|13245|Mount Woowoolahra granite|25299|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|46889||||||||acid intrusive rock|||Y||17-JAN-23
Mount Wright Volcanics|13247|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Gnalta Group|7460|||Early Cambrian|505|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Early Cambrian|521|5|isotopic, U/Pb-Pb/Pb ion probe|||4000|NSW|Yes|43502||Kruse P.D.|01-JAN-82|NSW Subcommittee||Previously part of the 'Kara beds' in N.S.W. Max Age: 586 (+/-) 7 Ma. See also Mount Wright Formation. Definition pre-1986. Archaeocyathid faunas indicate Early Cambrian age.|Includes calc-alkaline volcanics - basalts and andesites with archaeocyathid limestone lenses; dacite, shale, minor chert. Regionally metamorphosed to prehnite-pumpellyite facies.|intermediate volcanic rock|sedimentary rock||N||17-JAN-23
Mount York Claystone|27508|Mount York Claystone Member|13252|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Grose Subgroup|26595|||Triassic||||deposition|Lower Triassic||||||13||No|29749|||||||Red-brown claystone.||||N||28-AUG-23
Mount You You Suite|73979|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Mount Bullaganang Supersuite|82586|Lower Triassic|||||Permian||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007. Originally of Mount You You Supersuite. In 2021 of Mount Bullaganang Supersuite.|||||Y||17-JAN-23
Mount Youngal Suite|31613|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Mount Youngal Tonalite|32249|Mount Youngal Granodiorite|22454|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Youngal Suite|31613|Lower Devonian||||intrusion|Lower Devonian||||||||No|44092||||||Used in GSNSW seamless geology dataset 2021.|Hornblende-biotite granodiorite, tonalite, quartz monzodiorite, diorite; common amphibolite xenoliths.||||Y||21-JUL-23
Mountain Creek Suite|32033|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Lower Devonian|||||Lower Devonian||||||||No|43158|||||||||||Y||17-JAN-23
Mountain Creek Volcanics|13264|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Black Range Group|1812|Mountain Creek Suite|32033|Emsian|406|1|isotopic, Rb/Sr|deposition|Silurian|420.3|3|isotopic, U/Pb-Pb/Pb ion probe|||5000|NSW|No|39800|22638|||||Of the Boggy Plain Suite (Boggy Plain Supersuite) on Lachlan Fold Belt granites map (Chappell et al (1991)).|Fine grained, feldspar phyric, rhyolitic-dacitic welded ignimbrite and flow banded lava. Lenses of volcaniclastic sandstone, siltstone and breccia; minor basal, polymictic, pebble-cobble conglomerate and pebbly sandstone; high mag susceptibility.|acid volcanic rock|siliciclastic sedimentary rock||N|I-type|17-JAN-23
Mountain Dam Limestone|13267|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cobar Supergroup|27673|||Lower Devonian||||deposition|Lochkovian|||||||NSW|No|34449|41394|||||Lithology description from GSNSW seamless geology 2023.|Grey-blue, partly recrystallised bioclastic limestone.|carbonate sedimentary rock|||N||28-SEP-23
Mountain Home Granite|82779|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021. After Genske et al. (2012). A blind pluton, inferred from geophysical modelling. Named after a local homestead. Located ~25 km WSW of Uralla.|Felsic intrusive, not exposed at the surface. ?I-type granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Moura Formation|29589|Moura beds|13274|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Goonigal Group|24297|||Pridoli||||deposition|Silurian||||||||No|43640||||||Bathurst , Forbes 1:250 000 sheet areas.|Consists of well-banded lithic sandstone with lesser intercalated shale, siltstone and minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Mouramba Group|25736|Mouramba Formation|13276|||Yes|Group, Suite|Formal|Variation of published name|Redefined|Cobar Supergroup|27673|||Lochkovian|||||Late Silurian||||||5000|NSW|No|41394|41528|||||(MacRae 1987).||medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mowambah Granodiorite|27209|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bullenbalong Suite|2895|Wenlock||||intrusion|Wenlock|||||||NSW|No|35109|35109|||||This unit was called the Ingeegoodbee Granodiorite in Victoria (Geol Survey of Victoria) until 2011.|Biotite granodiorite and tonalite commonly containing cordierite; common metasedimentary xenoliths|acid intrusive rock|||Y|S-type|17-JAN-23
Mowbray Formation|26060|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Gilmore Volcanic Group|7238|||Namurian||||deposition|Namurian||||||198|NSW|Yes|31228|31228|Hamilton G.|12-MAR-73||||Yellow to red lithic sandstone and conglomerate with interbedded rhyolitic and rhyodacitic ignimbrite and tuff.||||N||17-JAN-23
Moyne Farm Gabbro|13291|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||||basic intrusive rock|||Y||17-JAN-23
Mozart Chert|73667|Mozart Chert Member|37821|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Adaminaby Group|98|||Sandbian|||biozone|deposition|Darriwilian|||biozone|||||No|63293||||||Previously included in Triangle Formation. Same age as Numeralla Chert and Nattery Chert Member of Abercrombie Formation. Rockley-Gulgong Volcanic Belt. Contains late Darriwilian to early Gisbornian conodont fauna. Said to be of the Adaminaby Group in 2011 and the Cabonne Group in 2012.|||||N||17-JAN-23
Muckabunnya Formation|76152|Muckabunnya beds|38164|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wana Karnu Group|70131|||Middle Devonian||||deposition|Lower Devonian||||||||No|66623|66623|||||Formerly Mootwingee Series (Andrews 1922), undifferentiated Mulga Downs Group (Rose 1974), part of Snake Cave Sandstone (Buckley 2000), Muckabunnya beds of Neef & Larsen (2002). Redefined in this study. Equivalent to much of Wana Karnu Group. Outcrops east of Koonenberry Fault as high strike ridges with local cliffs. 3000m thick. Abundant Skolithos in unit b. ;  See also misspelling Muckabunnya Beds (RefID 67562, 2012)|Medium- to coarse-grained, poorly to well sorted, quartz-rich sandstone with local pebbly intervals; very minor shale; clay and mica rich matrix common; planar cross-beds, sporadic ripples; some rutilated and fibrolitic detrital quartz.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Muddy Lake Diorite|73681|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Ordovician||||intrusion|Upper Ordovician|456|5|isotopic, K/Ar|||||No|63278|||||||Diorite sill.|intermediate intrusive rock|||Y||17-JAN-23
Mudgee River Granite|28823|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Gulgong Suite|31452|Pennsylvanian||||intrusion|Visean||||||||No|43476||||||Not included in the Gulgong Plutonic Suite on the DUBBO 250K.|Biotite granodiorite, biotite-quartz monzodiorite, monzonite|intermediate intrusive rock|||Y|I-type|17-JAN-23
Mudgingar Granite|32286|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Yeoval Suite|31486|Emsian||||intrusion|Lochkovian||||||||No|23043||Warren A.|05-MAY-98|||Dubbo 1:250 000 sheet area.|Medium- to coarse-grained pink granite; includes aplitic dykes.|acid intrusive rock|||Y||17-JAN-23
Mufflers Creek Granite|13328|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|45147||||||||acid intrusive rock|||Y||17-JAN-23
Mugga Mugga Porphyry Member|24407|Mugga Mugga Porphyry|13330|||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Deakin Volcanics|25874|||Ludlow|414|9|isotopic, Rb/Sr|tectonic process|Ludlow|||inferred, underlying unit|minimum depositional age||600|ACT|Yes|36633|42820|Abell, R.S. (after Henderson, G.A.M., after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|Defined in BMR Bulletin 233, Abell (1991). Maximum thickness measurements/estimates/guesstimates range from 300m to 600m. A radiometric age of 414+/-9Ma for the Mugga Mugga Porphyry Member relates to the intrusion of the younger Federal Golf Course tonalite which reset the isotopic chemistry of the porphyry.|Compact blue and mauve-grey porphyritic rhyodacite, volcaniclastic and waterlaid epiclastic tuff, tuffaceous shale.|acid volcanic rock|siliciclastic sedimentary rock||U||17-JAN-23
Mugincoble Chert|13338|Mugincoble Beds|13337|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Ordovician|||inferred, biostratigraphic correlation|deposition|Middle Ordovician||||||2000|NSW|Yes|40365|46522|Bowman H.N., Richardson S.J.||Russell, T.|18-JUN-82|Darriwilian. Considered a member of the Kirribilli Formation by Glen et al. (2007), but more recently stated to overlie Kirribilli Formation.|Black to grey massive to thick beds of radiolaran-bearing chert with phyllite interbeds.|biogenic silica sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Muirs Creek Conglomerate|13340|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Serpukhovian||||deposition|Serpukhovian||||||200|NSW|No|32868|44244||||||Massive boulder to cobble conglomerate containing clasts of acid volcanics and lenses of crossbedded sandstone and coal|medium-coarse grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Mulbring Siltstone|25303|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Maitland Group|11039|||Lopingian|||inferred, biostratigraphic correlation|deposition|Wordian|||biozone|eruption||393||No|43440|22601|||||Age; previously described as Kazanian (Late Permian), which was correlated with the Roadian-Wordian (Guadalupian) in 2004. Fossils from the Fenestella Shale Member of the Branxton Formation (basal Maitland Group) are shown to be Wordian [2012 ref], so Mulbring Siltstone (top Maitland Group) must be younger than previously thought [2012 ref shows it as Lopingian].|Fine-grained offshore sediments: siltstone, claystone, minor fine-grained sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Mulcatcha Formation|28825|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yancowinna Subgroup|20809|||Neoproterozoic||||deposition|Cryogenian||||||850||No|30261|||||||Flaggy, quartzose sandstone with lenticular boulder and arkosic sandstone beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Mulculca Formation|29225|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rantyga Group|70113|||Statherian||||deposition|Statherian||||||1500|NSW|Yes|46598|42897|Stevens B.P.J.|10-JUN-86|NSW SNSC|27-FEB-91|Within the Willyama Supergroup.|Abundant metasedimentary composite gneiss, variable sodic plagioclase-quartz-magnetite rock, quartz-albite-magnetite gneiss, minor quartz-magnetite rock common, minor basic gneiss, albite-hornblende-quartz rock.|metasedimentary siliciclastic rock|||N||17-JAN-23
Mulga Downs Group|26063|Mulga Downs Stage|77881|||Yes|Group, Suite|Formal|Variation of published name|Defined|Cobar Supergroup|27673|||Frasnian||||deposition|Pragian||||||4700|NSW|No|43384|22799|||||Also in Nelyambo Trough and Kanmantoo Fold Belt. Divided into 5 formations and 2 members. Includes fish fauna. Originally called Mulga Downs Stage (Mulholland 1940).|Quartzitic fluvial and alluvial sedimentary rocks; arenites and quartzites, minor conglomerate, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Mulga Spring Complex|13354|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned||||||||||||||||||No|41594|||||||||||N||17-JAN-23
Mulgoa Laminite Member|13364|Mulgoa Laminite|25304|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ashfield Shale|25701|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|35690|35690||||||||||N||17-JAN-23
Mulgowrie Granite|33798|Wheeo Granite|19864|Mulgowrie Granodiorite|77436|Yes|Formation, beds|Superseded|Resvd name published|Briefly described|||Burrawinda Suite|69893|Ludlow|427.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|427.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|50233||Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wyangala Batholith. Age from Mulgowrie Granodiorite. Used in GSNSW seamless geology dataset 2021, in spite of being defined as Mulgowrie Granodiorite.|Dark grey to cream to white, medium- to coarse-grained, foliated, porphyritic, (sporadically megacrystic) to equigranular, cordierite–muscovite–biotite granodiorite, tonalite and granite, sporadic mafic enclaves and sedimentary xenoliths.|acid intrusive rock|intermediate intrusive rock||Y|S-type|04-SEP-23
Mulgowrie Granodiorite|77436|Mulgowrie Granite|33798|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Burrawinda Suite|69893|Devonian||||intrusion|Silurian|427.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|||||No|66300|68592|||||A variation of Mulgowrie Granite (Unit no. 33798), which is the name preferred by GSNSW in 2012, 2021, 2023. And yet the Granodiorite was published in the 2013 Gunning and Crookwell  1:100 000 geological sheets (refID 70541 etc), and defined under that name.|Medium to coarse grained, foliated, porphyritic to equigranular, cordierite-muscovite-biotite granodiorite, tonalite and granite; granodiorite locally contains mafic enclaves and sedimentary xenoliths; low to high K and medium to high Th response.|acid intrusive rock|||Y|S-type|27-SEP-23
Mulgowrie Granodiorite, Julong Granite, Cumberoona Tonalite|79784|Mulgowrie Granite, Julong Granite, Cumberoona Granite|42002|||Yes|Formation, beds|Informal|Variation of published name|Unpublished|||||Late Silurian|||||Late Silurian||||||||No|||||||Informal grouping of units used on the New South Wales 1:1 million geological map, National Maps Project.  To be used in Pre-Cz geology, NSW & Vic. Of the Wyangala Batholith.|Foliated to massive, porphyritic to megacrystic, biotite granite and granodiorite containing sedimentary xenoliths, biotite-allanite soda-granite to soda-monzodiorite; massive to strongly foliated, porphyritic muscovite-biotite granite; strongly foliated|acid intrusive rock|intermediate intrusive rock||N||17-JAN-23
Mulguthrie Formation|33419|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Ootha Group|14623|||Lower Devonian||||deposition|Late Silurian||||||||No|24417|24417|Sherwin L.|27-APR-99|||Forbes 1:250 000 sheet area.  Previously of the Ootha Subgroup, now upgraded to Ootha Group. Used in GSNSW seamless geology dataset 2021.|Mudstone, sandstone.||||N||24-JUL-23
Mulla Creek Volcanics|13372|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35911|||||||||||N||17-JAN-23
Mullagalah Quartz Diorite|81788|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian|||||Lower Devonian|414.9|4.2||||||No|71345||||||Unclear whether this unit is intended to stand alone in the longer term, as an equivalent to the Galambo Granite, or be included in the Galambo Granite|Quartz-biotite-hornblende bearing, I-type quartz diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mullamuddy Formation|13385|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Queens Pinch Group|30152|||Pragian|||inferred, biostratigraphic correlation|deposition|Lochkovian||||||780||No|43461|23170||||||Volcanic arenite and conglomerate, shale|siliciclastic sedimentary rock|||N||18-SEP-23
Mullengandra Monzodiorite|81812|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|407.4|1.9|isotopic, U/Pb-Pb/Pb ion probe||Lower Devonian||||||||No|73457||Eastlake, M. (GSNSW)|21-JAN-20|||The name is derived from Mullengandra Creek and Mullengandra town; NE of Hume Highway, SE of Woomargama. The nearest town is Mullengandra, which lies approximately 4.5 km to the east of the center of the intrusion. Mullengandra Monzodiorite lies ca. 25 km NE of Albury, forming a small body between the older sheared Koetong Granite to the NW, and the Yellow Creek Granite to the SW. The unit is expected to be published in the Geological Survey of New South Wales Stratigraphic Unit Tables during 2020. Published in GSNSW seamless geology.|The dominant rock type is fine-grained, porphyritic quartz-monzodiorite with phenocrysts of plagioclase 3-5 mm long. The groundmass consists of plagioclase, quartz, minor late interstitial pink K-feldspar.|intermediate igneous rock|||Y||26-SEP-23
Mullens Granite|78648|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Glenbog Suite|7361|Pragian||||intrusion|Pragian||||||||No|69159|||||||Grey, green to pink, medium- to coarse-grained, massive, equigranular to occasionally weakly porphyritic, biotite-hornblende granite.|acid intrusive rock|||Y||17-JAN-23
Mullions Range Volcanics|13397|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mumbil Group|13411|||Lochkovian|417|4|isotopic, U/Pb-Pb/Pb ion probe|deposition|Ludlow|||inferred, biostratigraphic correlation|deposition||2000||No|43515|23170|||||SHRIMP U/Pb Age: 417+/-4 Ma. Originally included much of the Anson Formation.  Mainly submarine deposition.|Rhyolite, tuffaceous mudstone, rhyolite breccia, volcanic conglomerate, dacite, limestone|acid volcanic rock|||N||17-JAN-23
Mullungudgery Granite|82599|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Mixed granite, monzonite, diorite, andesite.|acid intrusive rock|intermediate igneous rock||Y||06-SEP-23
Mulwaree Group|26064|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Emsian|||||Pragian|||||||NSW|Yes|30730|30735|Felton E.A.||Bryan, J.H.|27-OCT-75|||medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Mumbedah Granite|13407|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Mumbedah Suite|31608|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Mumbedah Suite|31608|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Mumbidgle Formation|13408|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Forbes Group|25912|||Late Silurian||||deposition|Silurian||||||1000|NSW|No|33118|46522||||||Siltstone, shale, minor sandstone; contains brachiopods, trilobites, graptolites, gastropods, lamellibranchs|siliciclastic sedimentary rock|||N||17-JAN-23
Mumbil Group|13411|Mumbil Formation|25307|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Pridoli|||||Llandovery||||||3000||No|32154|23170||||||Characterised by widespread shale, fine sandstone/siltstone and carbonate deposition, in many areas in conjunction with felsic volcanic eruptive centers of rhyolitic to dacitic composition.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Mumbil Group undifferentiated sediments|42013|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Mumbil Group|13411|||Lochkovian||||deposition|Wenlock||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project.|Feldspathic, micaceous and carbonaceous siltstone, limestone, shale, sandstone; minor volcaniclastic sandstone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mumbulla Granite|23848|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mumbulla Suite|30468|Upper Devonian||||intrusion|Middle Devonian||||||||No|40646||B.W.Chappell|27-OCT-75|||Not sure of Bega Batholith?|Medium-grained leucogranite|acid intrusive rock|||Y||17-JAN-23
Mumbulla Suite|30468|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian|||||Middle Devonian||||||||No|42726|||||||Fine-grained granite, fine- to medium-grained leucogranite|acid intrusive rock|||Y|A-type|17-JAN-23
Mummel Chert Member|69901|||||Yes|Member, phase|Formal|Variation of published name|Defined|Abercrombie Formation|69898|||Floian|||biozone|deposition|Floian|||biozone|||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006) - downgraded from Mummel Formation originally reserved (3/2005) by M. Scott, but not published [12/05 PP]. Includes conodonts indicative of a late Bendigonian to Chewtonian age.|Varicoloured medium-bedded to laminated chert interbedded with grey massive to laminated siltstone, mudstone and fine-grained sandstone.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Munderoo Granodiorite|13428|Munderoo granodiorite|13429|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mannus Creek Suite|31616|Wenlock|||inferred|intrusion|Wenlock|429.2|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|45087||||||Chappell et al., in an AMIRA Report in 1999, combined this unit along with the Bogandyera Granite and the Prison Farm Granodiorite into the Bogandyera Granite, and renamed the  (parent) Mannus Creek Suite as the Bogandyera Suite, but these changes were not reflected in publicly available documents, and have evidently not been supported by GSNSW work, given that they retained all 3 units as part of the Mannus Creek Suite in 2013.|I-type, felsic, unfractionated granite|acid intrusive rock|||Y|I-type|21-AUG-23
Mundi Mundi Granite|13430|Mundi Mundi granite|13433|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ninnerie Supersuite|69798|Calymmian|1591|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Calymmian|1591|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|43491|||||||Post deformation two-mica granite.|acid intrusive rock|||Y||17-JAN-23
Mundi Mundi Suite|33123|||||Yes|Group, Suite|Informal|STRATLEX Entry|Briefly described|||||Calymmian|1590||||Calymmian|1600|||||||No|50606||||||Broken Hill area. May extend into SA. Used in Proterozoic Granites Project, Broken Hill - Olary Province.|Equigranular, pink to grey, leucocratic muscovite + biotite + microcline granite with scattered, euhedral microcline phenocrysts.|acid intrusive rock|||Y||17-JAN-23
Mundoonen Sandstone|13443|Mundoonen Series|13446|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Margules Group|69897|||Llandovery|||inferred|deposition|Katian|||inferred|deposition||||No|34405|||||||Thick-bedded massive to graded med-gr. granule quartzose to lithic-quartz sst.; thinly bedded, massive-fine- to med.gr.quartzose-lithic-qtz sst.interbedded with x-lam.sst; with 2 quartzose to lithic-quartz subunits, thinly and thickly bedded respectively.|siliciclastic sedimentary rock|||N||17-JAN-23
Mungay Formation|34754|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|22892||||||Age: 6425-8530yrs Bp.|||||N||17-JAN-23
Mungo Unit|13470|Mungo unit|13471|||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described||||||||||||||||||No|29643|||||||||||N||17-JAN-23
Munmorah Conglomerate|13477|Munmorah conglomerate|13479|||Yes|Formation, beds|Formal|Other new published name|Defined|Clifton Subgroup|4163|||Lower Triassic||||deposition|Late Permian||||||140|NSW|Yes|43342||Uren R.E.||Hawke, J.|12-JUL-78|Previously included Vales Point Coal Member. The coal now [1999] marks the top of the underlying Newcastle Coal Measures. Unclear if other Member units are still in use or not. Included in ascending order: Cowper Tuff Member, Karignan Conglomerate Member, Vales Point Coal Member.|Medium to coarse-grained sandstone and conglomerate; minor siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Murda Formation|33191|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Girilambone Group|27158|||Upper Ordovician||||deposition|Upper Ordovician||||||||No|50554|24417|Scott M.|10-NOV-98|||FORBES 1:250 000 sheet area.  (See RefID: 24417).|Magnetite-bearing massive red sandstone with minor white sandstone, siltstone and chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Murder Dog Monzogranite|69452|Murder Dog Adamellite|13504|||Yes|Formation, beds|Formal|Resvd name published|Described|||Hillgrove Supersuite|67847|Stephanian|298|2||intrusion|Namurian||||||||No|69639||Mark Dawson (NSWGS)|13-JUL-05|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.  Previously intended to be part of Hillgrove Suite, now part of Murder Dog Suite of the Hillgrove Supersuite. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Biotite monzogranite and granodiorite +/- trace almandine (amphibole free)|acid intrusive rock|||Y|S-type|25-AUG-23
Murdering Gully Tuff Member|35097|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Glenrock Lagoon Formation|35161|||||||eruption|||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Muree Sandstone|13509|Muree Formation|13506|||Yes|Formation, beds|Formal|Variation of published name|Described|Maitland Group|11039|||Guadalupian||||deposition|Guadalupian||||||300|NSW|No|43491|||||||Fine to coarse-grained sandstone, conglomerate, minor clay.|siliciclastic sedimentary rock|||N||17-JAN-23
Murga pyroxenite-hornblendite|82717|Murga Intrusive Complex|24410|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Tout Intrusive Complex|18490|||Lower Devonian|||inferred||Lower Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Previously informally known as Wanda Bye Intrusion. GSNSW appear to have downgraded this unit even further in the 2023 seamless to 'Tout Intrusive Complex - Murga pyroxenite-hornblendite', although they still list it as a distinct member of the Tout Intrusive Complex.|Peripheral zone of coarse-grained hornblende pyroxenite grading to augite hornblendite. A central zone of sericitised and saussuritised meladiorite grading to quartz diorite.|ultramafic intrusive rock|||Y||13-JUN-23
Muriarra Formation|13516|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Ordovician||||deposition|Ordovician||||||||No|43385|||||||||||N||17-JAN-23
Murrabah Shale|13532|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43476||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Murrabit pluton|83409|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||Used in RefID 73496 Moore (2005). G657. Magnetic response shows strongly zoned pluton, with the northwestern part nonmagnetic and the southeastern part with responses to 80 nT;  gravity about 40 micrometres/second/second lower than the regional.. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - murrabit pluton. See also Murrabit Granite.|Interpreted ?I-type granite.|igneous intrusive rock|||Y||02-AUG-23
Murrabrine Quartz Diorite|22482|Murrabrine Granite|13533|||Yes|Formation, beds|Formal|Resvd name published|Described|||Cobargo Suite|31492|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Murrabrine Granite in Chappell et al (1991), but formal name not intended.|Diorite, quartz diorite|intermediate intrusive rock|||Y||17-JAN-23
Murrawombie Schist|38848|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Girilambone Group|27158|||Ordovician|||||Ordovician||||||||No|24417||||||||metamorphic rock|||N||17-JAN-23
Murrawong Creek Formation|23854|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Late Cambrian||||deposition|Middle Cambrian||||||500||No|41347||P.Cawood|03-OCT-78||||Arenite, granule to boulder conglomerate, clasts of limestone; trilobites, brachiopods, conodonts.|siliciclastic sedimentary rock||island arc|N||17-JAN-23
Murray Basin - sediments 81563|81563|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Quaternary|||inferred||Paleocene|||inferred|||||No|||||||For use by Tony Meixner in 'Estimates of geological and geophysical surfaces' work, EGGS database.|Sedimentary rocks.|sedimentary rock|||N||17-JAN-23
Murray Gates Leucogranite|37766|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Leucogranite: grey to pink, medium to coarse grained; up to 5% biotite; massive and equigranular with some porphyritic phases; nonmagnetic. A-type|acid intrusive rock|||Y|A-type|17-JAN-23
Murray Group|13544|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Middle Miocene||||deposition|Rupelian||||||||No|34308|50154|||||Name was upgraded to Murray Supergroup by Lukasik and James (1998) - but this change was not accepted by other authors.  Re-instated as Murray Group discussed by Rogers, P.A.  "Discussion and Reply" (AJES 46, p485-486). Lithostratigraphy has now been overhauled and revised by Cowley and Barnett (2007) - see RefID: 64237 where a detailed nomenclatural history and evolution is presented. The Ludbrook (1961) strat.scheme included all units between base of Bookpurnong Beds (top) and top of Ettrick Formation (basal), namely, Mannum Fm., Finniss Clay, Morgan Limestone and Pata Limestone - with the basal Ettrick Fm being incorporated with Compton Conglomerate into the Glenelg Group which underlay the Mannum Fm (Murray Group). Lawrence (1969) then expanded the group to include all Tertiary marine units above the underlying Knight Group - namely, Netherby Marl, Geera Clay, Duddo Limestone and Winnambool Formation, as well as Bookpurnong Beds and Diapur Sandstone above; in 1975 Lawrence excluded the latter from a revised scheme. Another revision in 1988 removed Bookpurnong Beds from the Murray Group. Rogers (1995) then incorporated Mannum Formation, Morgan Limestone and Pata Limestone into one single unit, Mannum Limestone.  There then followed a comprehensive lithological and palaeontological study by Lukasik and James whereby Murray Group was elevated to Murray Supergroup (including Ettrick Fm., Geera Clay and Winnambool Fm. but not Duddo Limestone - with Mannum Fm, Finnis Fm. and Pata Fm. reinstated (as formations) but Morgan Limestone became Morgan Group. This became controversial and was met with resistance. The outcome of this debate is that Murray Supergroup has not been accepted and Murray Group has been reinstated, but the Morgan Group is retained at the subgroup level as Morgan Subgroup with the original members, namely, Woolpunda Marl, Portee Carbonate and Cowirra Clay Members.|Consolidated well bedded pale grey, yellow, white and cream, highly fossiliferous skeletal calcarenite, calcareous cemented quartz sandstone, bioclastic limestone; minor weakly consolidated calcareous clay; abundant skeletal debris.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Murrays Flats beds|13549|||||Yes|Formation, beds|Informal|Variation of published name|Described|||||Lower Devonian|||||Lower Devonian||||||2000||No|42142|||||||Andesitic to felsic volcanics, volcaniclastics and clastics|intermediate volcanic rock|acid volcanic rock||N||17-JAN-23
Murrindindi Supergroup|35522|Yarra Supergroup|33844|||Yes|Supergroup|Formal|Resvd name published|Defined|||||Middle Devonian|||||Silurian||||||||No|23309|64612|VandenBerg, A.H.M.|15-JUN-00|||Melbourne Zone. Replaces the term Yarra Supergroup. Will be used in "The Tasman Fold Belt System in Victoria Special Publication".|Siltstone, shale, sandstone, rare conglomerate and limestone; sandstone typically quartz-rich in the lower part and lithic in the upper part; siltstone commonly bioturbated; marine to fluvial.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Murringo Granite|13558|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Murringo Suite|31614|Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Murringo Suite|31614|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Murruin Formation|74371|||||Yes|Formation, beds|Formal|Other new published name|Defined|Bindook Group|69879|||Devonian||||deposition|Devonian||||||||No|64238|||||||Polymictic, massive, mainly clast-supported boulder conglom., + clasts of silicic volcs,+ less abundant limest., marble, granite; passes up into volcanic sst of plagioclase, qtz, pyroxene, minor biotite + prominent dk green vitriclasts; 2 unnamed subunits|siliciclastic sedimentary rock|||N||18-SEP-23
Murrumbateman Creek Formation|13560|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Early Silurian||||deposition|Early Silurian||||||900|NSW|Yes|12185|42820|Abell, R.S.|03-OCT-07||||Sandstone, siltstone and shale|siliciclastic sedimentary rock|||N||17-JAN-23
Murrumbidgee Batholith - igneous rocks 82938|82938|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Silurian|429.1|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Silurian|429.1|3.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Unassigned Murrumbidgee Batholith units?, Suu. Used in GA Solid Geology layer.|Pale pink, fine- to medium-grained, leucogranite, with porphyritic aplite dykes; green-grey dacitic porphyry; dacitic porphyry with sporadic xenoliths.|acid intrusive rock|||Y||17-JAN-23
Murrumbidgee Group|27854|Goodradigbee Group|25020|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Emsian||||deposition|Pragian||||||800||No|43430|||||||Massive to bedded fossiliferous limestone; shale, siltstone, quartzose and tuffaceous sandstone|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Murrumbogie Intrusive Complex|24413|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Fifield Suite|77333|Lower Devonian|||inferred, overlying unit||Ordovician|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|Originally considered Devonian, more recently considered Ordovician [Sep-2012CEB]. Used in GSNSW seamless geology dataset 2021, 2023. Source and interpretation of 413+/-5 Ma age unclear.|Hornblendite and hornblende diorite with pyroxenite xenoliths; much of the feldspar has been altered to epidote and sericite but K feldspar is common in remaining rocks, hornblende altered to actinolite and sphene|ultramafic intrusive rock|intermediate intrusive rock||Y||13-JUN-23
Murrumbucka Suite|31611|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||Medium- to coarse-grained tonalite, biotite tonalite and biotite granodiorite||||Y||17-JAN-23
Murrumbucka Tonalite|26067|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Murrumbucka Suite|31611|Late Silurian||||intrusion|Late Silurian|||||||NSW|No|45003|36413|||||Correlated with parts of Cooma Complex.|Biotite-hornblende tonalite|acid intrusive rock|||Y||06-SEP-23
Murrumburrah Monchiquite|13570|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|monchiquite, nephelinite, basanite 82967|82967|||Lower Jurassic|||||Lower Jurassic|||||||NSW|No|29682|35070|||||198.5 +/- 3 Ma. Lithology updated from GSNSW seamless geology dataset 2021|Olivine nepheline lamprophyre.||||N||05-JUN-23
Murrurundi Ignimbrite Member|70503|Murrurundi|41420|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||intrusion|Pennsylvanian||||||70||No|62095|62095|||||Age is probably Westphalian. In the Werrie block/Tamworth Belt.|Unwelded red to pink ignimbrite.|acid volcanic rock|||N||17-JAN-23
Murta Formation|13577|Murta Member|13579|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Valanginian||||deposition|Berriasian|||||44|85|QLD|No|37287|63979|||||Supersedes former Murta Member, originally a part of Mooga Formation (now obsolete) - unit elevated to formation status.  See RefID: 23155 Strzelecki 1:250k explan notes (1995) for details of changes and locality and thickness of type section. Age - Neocomian. Passes lat. into upper Hooray Sst. Type section in Dullingari North 1.|Interbedded and interlaminated sandstone, silty sandstone, siltstone and lesser mudstone, intraformational conglomerate and coal|siliciclastic sedimentary rock|organic rich sedimentary rock||N||31-JUL-23
Murulla beds|77168|Murulla Beds|13592|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Singleton Supergroup|16939|||Lopingian|||||Lopingian||||||||No|68003||||||Werrie Basin. Unit in Singleton Supergroup? or equivalent to Singleton Supergroup? Name not in current use by GSNSW [Jun-2012]. Updated from GSNSW seamless geology dataset 2021. Shown as Wuchiapingian age.|Coal seams, claystone, siltstone, sandstone, conglomerate.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Musical Tonalite|22487|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Tom Groggin Suite|18286|Late Silurian||||intrusion|Late Silurian||||||||No|60078||L.Wyborn|11-OCT-77|||Card. BD informally as Musical Granite in Chappell et al (1991).|Biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y||17-JAN-23
Muswellbrook Coal Member|13615|Muswellbrook Formation|13616|||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Cisuralian||||deposition|Cisuralian||||||||No|39346||||||Both the Formation and the Coal Member have been in intermittent use since the 1980s, but GSNSW now prefers Muswellbrook Coal Member [Oct-2012CEB], of Rowan Fm, Greta Coal Measures, Sydney Basin.|Coal, no persistent bands, sporadic 'floating' ?discontinuous bands. Contains pyrite as nodules, thin lenticular bands, and cleat fillings|organic rich sedimentary rock|||N||17-JAN-23
Mutawintji Group|72958|Mootwingee Group|12302|||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Middle Ordovician|||inferred||Late Cambrian|||biozone|||||No|64679|66623|||||Supersedes Mootwingee Group as a result of a request by the Mutawintji people - to change the spelling  to reflect correct pronunciation. See both versions of the name for stratigraphic information as documented in the literature for each version.|Folded and weakly cleaved metasedimentary rocks; basal conglomerate overlain by fluvial to shallow marine sandstone and siltstone; fossiliferous marl at the top of the sequence; regionally metamorphosed to prehnite-pumpellyite facies.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mutawintji Group, Kayrunnera Group, Kandie Tank Limestone|78902|Mootwingee Group, Kayrunnera Group, Kandie Tank Limestone|40869|||Yes|Supergroup|Informal|Variation of published name|Briefly described|||||Lower Ordovician||||deposition|Late Cambrian||||||||No|||S.Liu||||Informal grouping of units for use in the 1:2.5M Bedrock Geology of Australia dataset. Also used with old spelling of "Mootwingee" in the 1:1M Surface Geology of Australia.|Shallow-marine shale, limestone and quartzite|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mutmutbilly Granite|35613|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gunning Suite|31580|Pridoli||||intrusion|Ludlow||||||||No|50232||Pogson D.|17-OCT-00|||GUNNING 1:100 000 sheet area. Part of the Wyangala Batholith.|Light grey, med- to coarse-gr., porphyritic biotite granite and granodiorite with a minor component of small microdiorite xenoliths and miarolitic cavities.  Margins comprise porphyritic microgranite and rhyolite. Low K, Th, U radioelement response.|acid intrusive rock|||Y||17-JAN-23
Muttama Creek Siltstone|13618|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Cootamundra Group|4654|||Emsian||||deposition|Lochkovian||||||1750|NSW|No|35206|22638||||||Shale, siltstone, sandstone, minor volcanics.|siliciclastic sedimentary rock|||N||17-JAN-23
Mutton Bird Point Formation|83553|||||Yes|Formation, beds|Formal|Other new published name|Described|Lord Howe Volcanic Complex|83554|||Messinian|||inferred||Messinian|||inferred|||||No|73581||||||Used in GSNSW Seamless Geology 2021.|Basaltic breccia and hyaloclastite (glassy) breccia and basalt pillow lava deposits.|basic volcanic rock|||N||05-FEB-23
Myall Block - sedimentary rocks 82919|82919|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||inferred||Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Myall Block units', Cum. Used in GA Solid Geology layer.|Siliclastic rocks with minor volcanic and carbonate rocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Myall Mudstone|13623|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|37083||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Myalla Road Syenite Complex|30467|Myalla Road Syenite|27855|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Upper Jurassic||||intrusion|Middle Jurassic||||||||No|22815|22815|||||K/Ar  Ages range from 161Ma to 171Ma.|Medium- to fine-grained, slightly porphyritic syenite; dark, porphyritic, sporadically fine-grained monzonite.|intermediate intrusive rock|||Y||19-JUL-23
Myamley Sandstone|28274|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Yarra Yarra Creek Group|29299|||Pragian||||deposition|Pragian||||||400||No|42449||||||Lithology description from GSNSW seamless geology 2023.|Fine- to medium-grained sandstone, with flaggy bedded outcrops.|siliciclastic sedimentary rock|||N||28-SEP-23
Myanbah Leucosyenogranite|82600|Myanbah Leucomonzogranite|67909|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Supersuite|67894|Lower Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium-grained, sugary-textured, biotite leucosyenogranite to K-feldspar-rich leucomonzogranite. I-type.|acid intrusive rock|||Y|I-type|19-OCT-23
Myocum Monzogranite|76986|Myocum Adamellite|22493|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Myocum Suite|31523|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. S-type or I-type? Published in GSNSW seamless geology. Lith desc as I-type from 2023 version.|Leucogranite and monzogranite, aplite, porphyritic units.|acid intrusive rock|||Y||29-SEP-23
Myocum Suite|31523|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Glenbog Supersuite|7362|Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Myra beds|26792|Myra Beds|13648|||Yes|Formation, beds|Informal|Variation of published name|Fully described|Woolomin Group|27097|||Devonian|||||Silurian||||||||No|41348|||||||Slate, phyllite, chert, jasper, metabasalt extrusives and intrusives, minor lithic wacke|metasedimentary siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock|accretionary wedge|N||17-JAN-23
Myrong Granite|79949|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Used in GSNSW seamless geology 2023. Granitoid intrusion with moderate to low magnetic intensity.|Granitoid intrusion with moderate to low magnetic intensity.|acid intrusive rock|||Y||04-SEP-23
Myrtle Grove Formation|23857|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||Kandos Group|29513|Emsian|||inferred, biostratigraphic correlation|deposition|Emsian|||inferred, biostratigraphic correlation|||||No|43363||Geological Survey of New South Wales|14-FEB-69|||Card. Has appeared on Glen Alice 1:50 000 prov.ed map. M 90/26955 but NLR30-6-82. Used in GSNSW seamless geology dataset 2021.|Lithic and quartz sandstone, shale, limestone lenses. Rare quartzite and slate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Myuna Conglomerate|13664|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41463|||||||||||N||17-JAN-23
Nacka Nacka Metabasic Igneous Complex|27052|Batlow Amphibolite|23366|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Llandovery|438|3|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation|Upper Ordovician|466||isotopic, K/Ar|||||No|37529||H.Basden|12-DEC-80|||Also supersedes Gilmore Creek Amphibolite.|Metabasalt, basalt breccia, pillow lavas, amphibolite, chloritic schists, feldspathic sandstone|metamorphosed basic igneous rock|basic volcanic rock||Y||01-AUG-23
Nagero Coal Member|22498|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||D.Butel|03-AUG-78|||Note the new ORIGN. Also used in GSNSW seamless geology dataset 2021.|Typically high volatile, very low ash, bituminous (soft coking) coal, seam splits and thins to the south-east.|organic rich sedimentary rock|||N||17-JAN-23
Nagha Granite|13682|Nagha Adamellite|22499|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Gabo Suite|6947|Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G3|Felsic, equigranular, brick red, biotite granite with perthitic alkali feldspar dominant over plagioclase, ferrohastingsite, Fe-rich biotite, accessory magnetite, zircon, allanite, apatite and secondary fluorite|acid intrusive rock|||Y||17-JAN-23
Naghi Granite|13683|Naghi Adamellite|22500|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Variation on Naghi Adamellite.  A pluton that straddles the NSW-Victoria border. Renamed Naghi Granite in Victoria to accord with GSV naming practice. Note that NSW uses Naghi Monzogranite.|Granite: pink to red, medium to fine grained, equigranular; contains biotite and minor hastingsite with rare fluorite; A-type.|acid intrusive rock|||Y|A-type|17-JAN-23
Naghi Monzogranite|76987|Naghi Adamellite|22500|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Gabo Suite|6947|Upper Devonian||||intrusion|Middle Devonian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Note Naghi Granite is used in Victoria in 2011. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite|acid intrusive rock|||Y|A-type|17-JAN-23
Nalbaugh Granodiorite|22501|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Nalbaugh Suite|31537|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Nalbaugh Granite (Vic and NSW) in Chappell et al (1991), but formal name not intended.|Biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Nalbaugh Suite|31537|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Tonghi Supersuite|18338|Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Nallawa Suite|36469|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Boggy Plain Supersuite|2092|Devonian|||||Devonian||||||||No|23549||||||NOT superseded by Nallawa Complex. Only this unit and informal subdivisions used in GSNSW seamless geology 2023.|Pink, fine- to medium-grained two feldspar-biotite granite, ferrohastingsite and magnetite hypersolvus granite. Minor phases include sodic phase aplitic granite and granodiorite, and dioritic phase diorite, monzodiorite, granodiorite, quartz diorite.||||Y||11-SEP-23
Nalleen Tuff Member|13702|Nalleen Tuff|38242|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Dights Creek Coal|5479|||Late Permian||||eruption|Late Permian||||||||No|39666||||||See also Nalleen Member, Naleen Tuff Member.|||||N||17-JAN-23
Namba Formation|13707|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Serravallian||||deposition|Chattian|23.5|||deposition||250|SA|No|30920|30056|||||Callabonna Sub-basin, Lake Eyre Basin. The lower unit only occurs subsurface: interbedded indurated dark sandy claystone with skew planes, and sand (fine to coarse, low sphericity, subrounded, polished); structures like upper unit, burrows less evident; rare vertebrate, invertebrate and plant fossils; white very fine-grained dolomite interbedded with olive-grey clay (palygorskite) near base. Is a SA unit and does not extend into Queensland [Advice from IWW JUL-2020]|Sand, fine to medium-grained, poorly sorted, angular, silt, thin dolomite, oolitic dolomite interbeds. Shallow, brackish to fresh water lakes.|regolith|carbonate sedimentary rock||N||17-JAN-23
Nambucca beds|29689|Nambucca Beds|26796|||Yes|Group, Suite|Informal|Variation of published name|Fully described|||||Cisuralian|||||Pennsylvanian|||||3000|4000||No|44450|||||||Slate, phyllite, schist, lithofeldspathic sandstone, minor conglomerate.|metasedimentary siliciclastic rock||extensional continental backarc|N||17-JAN-23
Nambucurra Granodiorite|22502|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian|415.3|8.22|isotopic, K/Ar|intrusion|Silurian|||inferred|||||No|44188||Cameron R.|15-FEB-95|||Pooncarie 1:250 000 geol. sheet 1996. Known from drill core in Nambucurra No.1 (or Nambaccuara - 1)  well, Pooncarie 1:250k map sheet. Alternate spelling of well name from Zwingmann et al. (2001), now available as GSNSW GS Report 2006/119. Well completion report uses Nambucurra.|Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Namoi Coal Member|80154|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Maules Creek Formation|11472|||Cisuralian|||||Cisuralian||||||||No|70791||||||Different unit to Namoi Formation. Is this an old name for one of the other Coal Members of the Maules Creek Formation?||organic rich sedimentary rock|||N||17-JAN-23
Namoi Formation|13721|Lower Burindi Series|10714|||Yes|Formation, beds|Formal|Other new published name|Defined|Parry Group|14916|||Visean||||deposition|Tournaisian|||||640|1200|NSW|No|43435|37987|||||See also Goonoo Goonoo Mudstone.  In the Tamworth Belt.|Thinly bedded mudstone and siltstone with minor conglomerate, litharenite, calcareous sandstone, siltstone and bioclastic limestone; rare tuff|fine grained siliciclastic rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Namoi Tops Monzogranite|82609|||||Yes|Formation, beds|Formal|Other new published name|Described|||Copeton Suite|82398|Cisuralian||||magmatic crystallisation|Cisuralian|292.3|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Heterogeneous unit comprising white to light grey, medium[- to coarse-grained, weakly to coarsely porphyritic and equigranular biotite-(?) monzogranite. S-type.|acid intrusive rock|||Y|S-type|01-SEP-23
Namungo Monzogranite|77020|Namungo Adamellite|28845|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Used in GSNSW seamless geology dataset 2021.|Garnet - andalusite - muscovite bearing monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Namur Sandstone|13738|Namur Sandstone Member|13733|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Berriasian||||deposition|Oxfordian|||||||SA|No|37287|23155|||||Supersedes former Namur Sandstone Member (1995) as unit has been elevated to formation status, see ref Strzelecki 1:250k explan notes (1995) for details of change.  Name often used by petroleum companies for Hooray Sandstone in northern and eastern Cooper-Eromanga Basins area. Appears as within Rolling Downs Group on Cobham Lake 100k (2010) and Mount Arrowsmith 25k (2007) maps. Tyope section in Strzelecki 4 in SA but "Upper Namur Sandstone" is described in GSQ Thargomindah 1-1A.|White to pale grey, flat and cross-bedded, fine- to coarse-grained, quartzose sandstone; minor siltstone and mudstone interbeds; channel lag conglomerates. Locally strongly cemented with calcite.|siliciclastic sedimentary rock|||N||31-JUL-23
Nandewar Volcanic Complex|41276|Nandewar Volcanics|13763|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Early Miocene|16|||eruption|Early Miocene|21|||||||No|50629|||||||Includes basaltic and trachytic lava flows and pyroclastic tuffs. Rhyolite plugs and flows (Killarney Gap) and basalts, alkali rhyolites and trachytes (Mount Kaputar), tuff; minor interbedded diatomite.|igneous volcanic rock|||N||17-JAN-23
Nandillyan Limestone|13773|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Mumbil Group|13411|||Wenlock||||deposition|Wenlock||||||600||No|43517|23170|||||Northwest Originally named Nadillyan Limestone Member. Aslo previously included as part of Gamboola Formation. Previously thought to be a synonym of Narragal Limestone.|Bedded highly fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Nandooka Sandstone|13774|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40595||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Nangahrah Formation|26071|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Woolomin Group|27097|||Famennian||||deposition|Ludlow|||||||NSW|Yes|41328|65398|Aitchison J.C., et al.||NSW SNSC|27-FEB-91|See also misspelling - Nangarah. Age updated from 2010 Manilla map.|Low grade regionally metamorphosed, multiply deformed chert, lithic and volcaniclastic wacke, breccia, basic volcanics, siltstone, mudstone and rare limestone|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock|accretionary wedge|N||17-JAN-23
Nangar Subgroup|13778|Nangar Sub-Group|13777|||Yes|Subgroup|Formal|Unknown or process pending|Defined|Hervey Group|25947|||Upper Devonian|||||Upper Devonian|||||||NSW|No|43507|43507|||||Consists of Caloma Sandstone(top), Pipe Formation, Mandagery Sandstone, Bumberry Formation, Weddin Sandstone, Cloghnan Shale, Troffs Formation, Boona Sandstone, Condobolin Formation(base).|||||N||17-JAN-23
Nangunyah|79950|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||For use in AJES paper as Nangunyah Zone, sthn Thomson Orogen, but may be formalised as a result of planned drilling. Siliciclastic metasedimentary rocks, with intercalated mafic horizon flows, sills and dykes ?interpreted from geophysics.|||||N||17-JAN-23
Nangunyah Formation|82610|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Emsian|||inferred||Furongian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Broad areas of low to moderate magnetic intensity interpreted as siliciclastic metasedimentary rocks with intercalated mafic horizons (flows, sills or dykes?).|metasedimentary siliciclastic rock|basic igneous rock||N||11-SEP-23
Nantilla Intrusion|82612|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Nantilla Suite|82611|Pridoli|||inferred||Wenlock|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Granitoid intrusion with high magnetic intensity|acid intrusive rock|||Y||17-JAN-23
Nantilla Suite|82611|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Pridoli|||inferred||Wenlock|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Granitoid intrusions with high magnetic intensity.|acid intrusive rock|||Y||17-JAN-23
Napperby Formation|13831|Napperby Beds|13830|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Middle Triassic||||deposition|Lower Triassic||||||250||No|37856|23170|||||Not related to Napperby Gneiss/Napperby Suite in NT. Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020]|Lacustrine and prograding delta sequences -  finely laminated quartzose sandstone and siltstone interbedded with thick, massive or crossbedded sandstones; minor conglomerate.|siliciclastic sedimentary rock|||N||19-JUL-23
Naradhan Sandstone|27517|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||778||No|43507|||||||White to maroon, medium to thick bedded, medium- to coarse-grained quartz sandstone - grading upwards to finer sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Nargong Volcanics|29826|Nargong|22511|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Cudal Group|4974|||Silurian||||eruption|Silurian||||||750||No|43642||Raymond, O.L.|30-AUG-95|||Originally reserved 1977 by R.Close. Allowed to lapse 1983. Revived for use in the Bathurst 1:250 000 sheet area, Aug 95.  Originally mapped as Walli Volcanics.|Andesite, porphyritic in plagioclase, augite and rare orthopyroxene, sericitised andesite.|intermediate volcanic rock|||N||17-JAN-23
Naringla Granodiorite|23864|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yeoval Complex|30531|Yeoval Suite|31486|Emsian||||intrusion|Lochkovian||||||||No|39658||I.Paterson|02-FEB-82||||Granodiorite-gabbro phase: hornblende granodiorite, quartz monzodiorite, diorite, two pyroxene diorite and quartz diorite, two pyroxene gabbro|acid intrusive rock|||Y||17-JAN-23
Narooma Chert|22512|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wagonga Group|19196|||Upper Ordovician||||deposition|Late Cambrian||||||600||No|22815|22815|Lewis P.|21-DEC-90|||Redefinition of the Wagonga Group has reinterpreted Narooma Chert as now being overlain by Bogolo Formation including the incorporated Kianga Basalt rocks (Glen et al 2005, AJES 51/6).|Slates interbedded with ribbon cherts, pale yellow to black as silt content increases up-section, with Furongian to Darriwilian conodonts; overlain by chert beds to 30cm thick alternating with shale and siltstone containing Eastonian graptolites.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Narrabeen Group|13874|Narrabeen group|13884|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Anisian||||deposition|Induan||||||808|NSW|No|43346|23170|||||See also Lexicon. SI56-5. Includes Munmorah Conglomerate. Defining ref (Dubbo Explan Notes, 1999) says o/lying is Purlawaugh Fm and the u/lying is the Illawarra Coal Measures. Boundary with underlying Newcastle Coal Measures modified in 1999 to be above the uppermost coal seam (usually Vales Point). Divided into Lower, Middle and Upper Narrabeen, based on depositional cycles; and 4 subgroups.|Quartz-lithic to quartzose sandstone, conglomerate, mudstone, siltstone, rare coal.|siliciclastic sedimentary rock|||N||28-AUG-23
Narrabri Formation|77554|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Pleistocene||||deposition|Pleistocene||||||||No|66891||||||Age, lithology and environment of deposition (meandering streams) details from Ringrose-Voase et al (2003) after Gates (1980) unpub. Saline aquifer.|Black grey and brown cracking clays with laterally discontinuous channel deposits  resulting in shoestring sand lenses.|regolith|||N||17-JAN-23
Narrabundah Ashstone Member|24420|Narrabundah Ashstone|13889|||Yes|Member, phase|Formal|Variation of published name|Redefined|Canberra Formation|3447|||Wenlock|||inferred, lithostratigraphic correlation|deposition|Wenlock|||inferred, lithostratigraphic correlation|||70|ACT|Yes|36633|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|Defined in BMR Bulletin 233. Used in GSNSW seamless geology dataset 2021.|Massive tuffaceous arenite, fine to medium grained tuff, and ashstone.||||N||24-JUL-23
Narraburra Granite|13890|||||Yes|Formation, beds|Formal|Other new published name|Described|Narraburra Complex|69150|Narraburra Suite|31617|Upper Devonian||||intrusion|Upper Devonian||||||||No|41320||||||See also Narraburra Complex - NOT equiv. to Narraburra Suite.|Arfvedsonite-aegirine granite (leucocratic)|acid intrusive rock|||Y||05-JUN-23
Narraburra Suite|31617|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|Narraburra Complex|69150|||Tournaisian|358|9|isotopic, Rb/Sr|intrusion|Famennian||||||||No|42726||||||Part of the Narraburra Complex? The term Narraburra Suite is being restricted to a subset of peralkaline or near peralkaline units in the area.|||||Y||05-JUN-23
Narragal Limestone|13896|Narragal Limestone Member|28853|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mumbil Group|13411|||Ludlow||||deposition|Ludlow||||||300||No|43517|23170||||||Massive to well-bedded limestone and dolomitic limestone; minor shale, rare chert|carbonate sedimentary rock|||N||17-JAN-23
Narragudgil Volcanics|33406|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Llandovery|433.7|2.3|inferred, intrusive relationship|intrusion|Middle Ordovician|||||||NSW|No|22434||Duggan M.|18-MAR-99|||Mafic volcanics in the Wyalong area.|Gabbro, andesite, diorite, basaltic andesite; metamorphosed to greenschist and amphibolite grade|basic intrusive rock|basic volcanic rock|island arc|N||17-JAN-23
Narrama Formation|73364|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Girilambone Group|27158|||Middle Ordovician|||biozone|deposition|Lower Ordovician|496|2.5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|67322||Burton, G.|22-MAY-07|||For use on map sheet 8135; nearest town is Cobar. To be published: 2008? Explan.Notes for Sussex and Byrock 1:100K map sheets, GSNSW. To include Budgery Sandstone Member (G.Fraser, pers. comm.; GO'C 2013). Maximum depositional age from detrital zircons.|Interbedded sandstone, siltstone, slate, phyllite, schist with rare thin chert horizons; radiolarians and conodonts in fine-grained rocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Narrandera Sandstone|79859|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Cocoparra Group|4293|||Upper Devonian|||||Upper Devonian|||inferred, underlying unit||250|300||No|72083||Trigg, S. (GSNSW)|13-JUN-17|||New name, after the town which is built at least in part on the Formation; a subdivision of previously undifferentiated Cocoparra Group. A suitable type area is a quarry/borrow pit on the S side of the Old Wagga Road at GR 465920 6153580 on Narrandera 1:100k sheet.|Well-laminated to locally massive, medium-grained quartz-rich sandstone; conglomerate to pebbly sandstone commonly developed at the base to 5m.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Narrangullen Rhyolite|25331|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|43344||||||||acid volcanic rock|||N||17-JAN-23
Narrawa Granite|33802|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Burrawinda Suite|69893|Ludlow||||intrusion|Ludlow||||||||No|50233||Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wyangala Batholith.|Cream to white, coarse-grained, equigranular, leucocratic granite. High K and low Th radioelement response.|acid intrusive rock|||Y||17-JAN-23
Narrawolga Coal Member|80155|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||Rowan Formation|26878|Cisuralian|||||Cisuralian||||||||No|70791||||||Name probably introduced by Dawson et al. (2006) 36th Sydney Basin Symposium, where it was shown as a Coal Member of the Railway View Conglomerate, basal Maitland Group. The diagram in Dawson (2016), RefID 70791, shows this unit as a member of the Rowan Formation, but also shows this Formation extending up beyond the Greta Coal Measures and into the Maitland Group as well, which may be an error.||organic rich sedimentary rock|||N||17-JAN-23
Narromine Igneous Complex|68843|Narromine Complex|39952|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Ordovician|448||||Middle Ordovician|471|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|24518||||||All undercover. Data from geophysics and drilling. Crawford et al. (2007) imply that their Copper Hill Suite rocks are part of the Narromine Igneous Complex, but the 2021 GSNSW Seamless Geology shows them as distinct and unrelated. Kemp, Blevin et al (2020) paper suggests that Crawford et al.?s (2007) dates of 467+/-5 and 471+/-6 Ma may actually represent a magmatic episode, rather than being inherited cores, as Crawford et al interpreted.|Basaltic and andesitic volcanics and volcaniclastic sedimentary rocks intruded by large plutons.|basic volcanic rock|intermediate volcanic rock||Y||27-APR-23
Narrow Plain Formation|13911|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Coorabin Coal Measures|4633|||Late Permian||||deposition|Late Permian|||||15|35|NSW|Yes|35498|35498|Palese G.W.|13-NOV-75|NSW SNSC|20-JUN-76||Poorly consolidated clayey sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Narrowleaf Leucogranite|37767|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Leucogranite: grey to pink, medium to coarse grained; up to 3% biotite; massive and equigranular with some porphyritic phases; nonmagnetic. A-type|acid intrusive rock|||Y||17-JAN-23
Narwonah Rhyolite|24423|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||eruption|Lower Devonian|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|||acid volcanic rock|||N||17-JAN-23
Nash Hill Volcanics|29252|Nash Hill Andesite|13924|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Northparkes Volcanic Group|35020|||Early Silurian||||eruption|Upper Ordovician|||||||NSW|No|39684|46522|||||Lithology description from GSNSW seamless geology 2023.|Brecciated, plagioclase-phyric, clinopyroxene-phyric and non-porphyritic, variably vesicular basalt to andesite; mafic epiclastic sandstone.|basic volcanic rock|intermediate volcanic rock||N||28-SEP-23
Native Dog Member|13935|Native Dog Ignimbrite Member|31407|||Yes|Member, phase|Formal|Resvd name published|Defined|Isismurra Formation|8801|||Mississippian||||deposition|Mississippian||||||500|NSW|No|32529|45088|||||Defn card held for Native Dog Ignimbrite Member.  Reserved as Native Dog Ignimbrite Member but appears to have only been published as Native Dog Member until informal reference to 'lower Native Dog Ignimbrite Member' in 1991.|Consists of a lower fine-grained ignimbrite and an upper sequence of green fine-grained ignimbrites, vitric lithic tuff and interbedded lithic sandstone and conglomerate.|medium-coarse grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Nattery Chert Member|69899|Nattery Chert|36333|||Yes|Member, phase|Formal|Variation of published name|Defined|Abercrombie Formation|69898|||Darriwilian|||biozone|deposition|Darriwilian|||biozone|deposition||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006) - downgrading Nattery Chert of previous GOULBURN 1:100 000 sheet.  Of the Adaminaby Group.Age based on conodonts|Varicoloured medium-bedded to laminated chert interbedded with cherty siltstone and mudstone, minor graded and cross-laminated fine-grained quartzose sandstone.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nea Subgroup|30034|Nea|22518|||Yes|Subgroup|Informal|Resvd name published|Briefly described|Black Jack Group|1798|||Lopingian|||||Lopingian||||||||No|43194|||||||Coarse- and fine-grained feldspathic sandstone, siltstone, shale, carbonaceous claystone, minor thin coal seams, minor conglomerate, minor tuffaceous sedimentary rocks.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||27-APR-23
Neara Volcanics|13946|Neara Beds|13943|||Yes|Formation, beds|Formal|Variation of published name|Defined|Toogoolawah Group|18352|||Middle Triassic|240.9|||eruption|Lower Triassic||||||1000|QLD|No|44671|44671|||||See also Lexicon. Age is based largely on poorly-constrained plant fossils and limited radiometric age data. Further geochronological work is required to test the correlation with [now dated as Late Triassic] Mount Marcella Volcanics, and determine the southern extent of Late Triassic volcanism (Purdy 2010).|Volcaniclastic conglomerate; andesite, sandstone.|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Neath Sandstone|28856|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Cisuralian||||deposition|Cisuralian||||||||No|34015||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Nebine Metamorphics|79789|Nebine metamorphics|79723|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Furongian|435|4|isotopic, U/Pb|deposition|Cambrian|520|10|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|71251||Purdy, D. (GSQ), Roach, I. (GA)|04-APR-17|||The informal Nebine metamorphics are to be formalised in forthcoming borehole completion records for GSQ Eulo 1. Maximum depositional age given. Age determination from GSQ Mitchell 1. Lithological description from GSQ Eulo 1. RefID 71965 shows the unit extending in to NSW in the interpreted basement geology map p896.|Multiply deformed, green, quartz-muscovite-biotite-chlorite schist that is strongly weathered in the upper part. Fine bedding shown by variation in relative abundance and grainsize of muscovite, quartz and biotite.|metasedimentary siliciclastic rock|||N||17-JAN-23
Neds Beach Formation|82619|Neds Beach Calcarenite|13957|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Pleistocene|||||Pleistocene||||||||No|73136||||||Used in Woodroffe et al. (2006). Geomorphological Evolution of Lord Howe Island and Carbonate Production at the Latitudinal Limit to Reef Growth.  Journal of Coastal Research 22(1), p188-201. [ca.] 0.125 Ma.|Calcarenites of skeletal carbonate grainstones comprising grains of coralline algae, molluscs, foraminifera, bryozoans, and some volcanic grains with only rare coral. Predominately deposited as eolianite that comprise cross-bedded units 3-25 m thick.||||N||25-JUL-23
Neegulbah Bed|35162|||||Yes|Bed|Formal|Other new published name|Mentioned|Upper Pilot Coal|18946||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Negero Coal Member|77381|||||Yes|Member, phase|Reserved|Reserved|Reserved|Maules Creek Formation|11472|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12||||Coal: Typically high volatile, very low ash, bituminous  (soft coking) coal, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Nelligen Granodiorite|13976|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Nelligen Suite|31615|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|No|35248|40276||||||Biotite monzogranite and felsic medium grained biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Nelligen Suite|31615|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Nelungaloo Volcanics|27679|Nelungaloo Andesite|13992|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Lower Ordovician|481|4|inferred, intrusive relationship|minimum depositional age|Lower Ordovician||||eruption|650|1500|NSW|No|33121|46522||||||Aphanitic and porphyritic basaltic lavas comprising mainly plag+clinopyx+olivine+Fe+Ti oxide-phyric, high-K calc-alkaline to shoshonitic andesites and volcaniclastic sedimentary rocks.|basic volcanic rock|intermediate volcanic rock|island arc|N||17-JAN-23
Nelungaloo Volcanics, Yarrimbah Formation|42286|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Lower Ordovician||||eruption|Lower Ordovician||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Basaltic to andesitic lavas, arkose, volcanic conglomerate; chert, cherty sandstone, volcanic conglomerate and sandstone, siltstone|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Neoproterozoic sedimentary rocks 76672|76672|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ediacaran|560|||deposition|Cryogenian||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Neoproterozoic sedimentary rocks 76673|76673|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|600|||deposition|Neoproterozoic|900|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Neranleigh-Fernvale beds|14021|Neranleigh-Fernvale Beds|14015|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||||Mississippian||||deposition|Upper Devonian||||||||No|37509||||||Min Age: Early Carboniferous, Max Age: Late Devonian radiolarians and conodonts, pers. comm. Cec Murray, GSQ, 04- NOV-2005. Shown as Late Devonian  to Carboniferous on Queensland Geology 1:2 mill map 2012. Shown as Carboniferous, in Beenleigh and South D'Aguilar Subprovinces, Wandilla Province (Geology of Queensland 2013, p334,336).|Feldspathic and lithic meta-arenite, metasiltstone and conglomerate proximal turbidites, with structurally intercalated or stratigraphically underlying chert, jasper and basic meta- volcanics.|siliciclastic sedimentary rock|basic volcanic rock|accretionary wedge|N||17-JAN-23
Neriga Province Volcanics|69633|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Rupelian||||eruption|Lutetian||||||||No|61155||||||In the Bathurst-Goulburn region.|||||N||17-JAN-23
Nerong Volcanics|14025|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||eruption|Visean|338.6|3.8|isotopic, U/Pb-Pb/Pb ion probe|||820||No|43432|44244||||||Ignimbrite interbedded with tuffaceous sandstone and conglomerate; dominant rhyodacitic ignimbrite.|acid volcanic rock|siliciclastic sedimentary rock|forearc|N||02-JUN-23
Nerong Volcanics, Berrico Creek Formation, Conger Formation|42284|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Rhyodacitic ignimbrite, thickly bedded to cross-stratified lithic sandstone, conglomerate; minor dacite, andesite, volcanic breccia, rhyolitic pitchstone, mudstone, discontinuous limestone, carbonaceous shale, lithic crystal tuff|acid volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Nerringah Sandstone Member|70237|||||Yes|Member, phase|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Simpson, C. (GSNSW)|30-MAR-06|||To be included in the Tangerang Formation.||siliciclastic sedimentary rock|||N||17-JAN-23
Nest Hill Granite|14026|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Koetong Suite|9703|Silurian||||intrusion|Silurian|429.2|2||||||No|42726||||||Briefly described. Formal name not intended|Grey, medium- to coarse-grained, equigranular to subequigranular biotite +/- muscovite granite/monzogranite with weakly perthitic K-feldspar; contains microgranitoid enclaves.|acid intrusive rock|||Y||22-AUG-23
Nettlebecks Lane Monzodiorite|83270|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Lower Ordovician|477|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lower Ordovician|484|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|73154||||||More recent dating gives slightly younger age for this unit than Butera et al., (2001) proposed.|Monzodiorite stock.|intermediate intrusive rock|||Y||17-JAN-23
Nevann Siltstone|22526|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Tournaisian||||deposition|Tournaisian||||||550||No|22736|22736|Roberts J.|06-SEP-93||||Grey laminated siltstone and minor lithic sandstone|fine grained siliciclastic rock||forearc|N||17-JAN-23
Neville Suite|31618|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726||||||This name may no longer be required [CEB Jun2014]?|||||Y||17-JAN-23
New Building Granodiorite|22530|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||New Building Suite|31463|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Lewis P.|21-DEC-90|||BD as New Building Granite in Chappell et al (1991), but formal name not intended.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
New Building Suite|31463|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
New England Province - alkali basalt 83833|83833|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||inferred||Cenozoic|||inferred|||||No|||||||Probably the New England part of GSNSW seamless geology 2021 unit 'Ungrouped Cenozoic igneous units - alkali basalt'  CZuc_f. Used in Cenozoic layer of Geoscience Australia's Alkaline Rocks dataset.|Coherent alkali-basalt volcanics including basanite and nephelinite varieties.|foid-bearing volcanic rock|||N||27-APR-23
New England Suite|40237|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned|||New England Supersuite|29686||||||||||||||No|38822|||||||||||Y||17-JAN-23
New England Supersuite|29686|||||Yes|Supergroup|Formal|Variation of published name|Briefly described||||||||||||||||||No|43017|||||||||||Y||17-JAN-23
New Tank Formation|70132|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wana Karnu Group|70131|||Lower Devonian||||deposition|Lower Devonian||||||400||No|66918|66623|Sharp, T.|10-MAR-06|||To be used in the Broken Hill Region.|Thick to very thick beds of white to buff pebbly sandstone, sandstone and conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
New Yards Granite|75736|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Chisholm, E. (GA)|18-AUG-10|||Map Sheet: Wollongong 1:250 000 (Burragorang 1:100 000 area), also located on the 1971 version of the Yerranderie 1:50 000. Nearest Town: Yerranderie. Felsic intrusive ¿ granitic pluton, approximately 2km x 4km in size, trending north-north-east in the Jooriland region.||acid intrusive rock|||Y||17-JAN-23
Newacres Ignimbrite Member|70029|||||Yes|Member, phase|Formal|Resvd name published|Defined|Quialigo Volcanics|69864|||Lower Devonian|409|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Lower Devonian|414.4|2.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|64238||Thomas, O. (GSNSW)|31-JAN-06|||Named for property on Windellama to south of Goulburn. Part of the Bindook Group.|Cream to grey quartz-feldspar phyric crystal-rich welded rhyolitic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Newcastle Coal Measures|27861|Upper Coal Measures|18878|||Yes|Group, Suite|Formal|Variation of published name|Defined|Singleton Supergroup|16939|||Changhsingian|252|||deposition|Wuchiapingian|256|||||1200|NSW|No|43491|43477|||||SI56-1/Muswellbrook. In 1999, top redefined as above the uppermost coal, usually the Vales Point coal seam. This redefinition first proposed by Uren (1977). Base redefined as the top of the Waratah Sandstone. Replaces entire Wollombi C.M. nomenclature as ratified by Coalfield Geology Council (2004) - which also recommended Amoco Wybong DDH1 be adopted as 'Reference Bore' for Newcastle. C.M. in Hunter Valley (formerly Wollombi C.M.). Apparently includes Waratah Sandstone in 2015 (RefID 70647).|Fine- to medium-grained quartz-lithic sandstone, polymictic conglomerate, carbonaceous claystone, coal, laminated very fine-grained sandstone or siltstone with claystone/mudstone, tuffaceous claystone/mudstone; abundant plant fossils and bioturbation.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Newholme Monzogranite|78602|Mount Duval Monzogranite|41070|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Mount Duval Suite|67902|Lopingian|252.8|1.5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lopingian|253.7|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|66660||||||Previously included in the Mount Duval Monzogranite, then Uralla Supersuite. GSNSW seamless geology dataset 2021 places this unit in the Mount Duval Suite, Uralla Supersuite. Distinguishable by its high radiometric response. Overlain by Tertiary basaltic lavas and intruded by Miocene (16.5 Ma K-Ar) basalt plugs.|Medium to coarse grained, massive and non-foliated, inequigranular & commonly K-feldspar porphyritic monzogranite. Enclaves: igneous 21%, metasedimentary 61%, quartz 18%.|acid intrusive rock|||Y||17-JAN-23
Newman Member|14105|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Drake Volcanics|28513|||Late Permian||||deposition|Late Permian||||||||No|39279||||||Wandsworth Volcanic Group? New England area.|Well-laminated rhyolitic crystal-lithic tuff.|acid volcanic rock|||N||17-JAN-23
Newnes Formation|24618|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Changhsingian||||deposition|Wordian||||||14|NSW|Yes|39232|40806|C.Bembrick|19-JUN-80|Russell, T.|13-JUL-83|Western Coalfield of Sydney Basin. Formerly part of Charbon Sub-Group.|Fine- to medium-grained, lithic sandstone, with interbedded siltstone and claystone (west of Wollar Hingeline) and upward-fining lithic sandstone (east of the Wollar Hingeline).|siliciclastic sedimentary rock|||N||17-JAN-23
Newport Formation (NSW)|29789|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Gosford Subgroup|7628|||Middle Triassic|||||Middle Triassic||||||49||No|34205||||||Invalid name introduced by Helby (1969) and Goldbery (1969). Not to be confused with Newport Formation of Victoria.|Interbedded laminite, shale, quartz to lithic-quartz sandstone; minor red claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Newton Boyd Granodiorite|25341|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Newton Boyd Suite|73907|Lower Triassic||||intrusion|Late Permian|252.8|1|||||NSW|Yes|35173|35173|Korsch R.J., Archer N.R., McConachy G.W.||Hawke, J.|01-MAY-78|Formerly of the Moonbi Suite.  Part of the Herries Supersuite.|Medium to coarse-grained equigranular to porphyritic biotite monzogranite and granodiorite. Includes altered granitoid: coarse to medium-grained, equigranular to porphyritic to irregularly-textured, granular felsic rock|acid intrusive rock|||Y|I-type|10-AUG-23
Newtown Formation|26078|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Gilmore Volcanic Group|7238|||Visean||||deposition|Visean||||||650|NSW|Yes|31228|31228|Hamilton G.|12-MAR-73||||Red to purple lithic sandstone, red, purple, or green siltstone, pebble conglomerate with interbedded rhyolitic and rhyodacitic ignimbrite and tuff|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Niemur granodiorite|80454|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Jawbone Creek granodiorite suite|80462|Late Silurian|||inferred, geological correlation||Late Silurian|||inferred, geological correlation|||||No|70718||||||Informal name, interpreted from geophysics. Deniliquin 1:250 000 sheet area. Intrudes the Bendigo Zone of the Murray Basin. Magnetic signatures suggest whole suite is I-type.|granodiorite inferred.|acid intrusive rock|||Y|I-type|17-JAN-23
Nile Subgroup|27092|||||Yes|Subgroup|Formal|Unknown or process pending|Redefined|Illawarra Coal Measures|27802|||Capitanian|||||Wordian|||||||NSW|No|38614|40806|||||Lith desc from GSNSW seamless geology 2023.|Claystone, sandstone, shale, and siltstone; minor limestone, dolomite and coal.||||N||30-AUG-23
Nimbin Rhyolite|14148|Nimbin rhyolite|14149|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Lamington Volcanics|10120|||Cenozoic||||eruption|Cenozoic|||||50|500|NSW|Yes|43881|30604|Duggan M.B., Mason D.R.|20-OCT-76|Hawke, J.|08-DEC-76||Porphyritic and aphyric rhyolite, obsidian, pitchstone, tuff, agglomerate; flows 50-150m thick interstratified with tuffs and agglomerates up to 20 metres thick|acid volcanic rock|||N||03-JUN-23
Nimmitabel Monzogranite|76988|Nimmitabel Adamellite|22554|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Nine Mile Volcanics|26079|Nine-Mile Volcanics|14162|||Yes|Formation, beds|Formal|Other new published name|Defined|Kiandra Group|27446|||Upper Ordovician||||eruption|Upper Ordovician||||||1050|NSW|No|34404|45147||||||High potassium porphyritic basalt; basaltic tuff, minor chert and feldspathic arenite|basic volcanic rock|sedimentary rock||N||17-JAN-23
Nioka Limestone Member|82614|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||Myrtle Grove Formation|23857|Emsian|||biozone||Emsian|||biozone|||||No|||||||Used in GSNSW seamless geology dataset 2021. Not related to Nioka Porphyritic Dacite Member. Age: Polygnathus dehiscens (base) to Polygnathus perbonus-gronbergi (top).|Micritic limestone, calcarenite, calcareous shale.|carbonate sedimentary rock|||N||17-JAN-23
Nioka Porphyritic Dacite Member|14179|Nioka Dacite|41355|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Emmaville Volcanics|6143|||Late Permian||||eruption|Late Permian||||||||No|42378||||||Not related to Nioka Limestone Member.|Dacitic ashflow, rhyolitic ash flow, porphyritic dacite lava.|igneous volcanic rock|||N||17-JAN-23
Nobbys Beach Lamprophyre|72992|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Permian|||inferred, geochemical correlation||Permian|||inferred, geochemical correlation||||NSW|Yes|63763||Och, D. and Leitch, E.C. (GSNSW)|29-MAR-07|||Used on map sheet 9435-2S; nearest town is Port Macquarie. Published in 2007 series Quarterly Notes/GSNSW.|Fine-grained, dark green-black lamprophyre dykes that cut the Tacking Point Gabbro and the Watonga Formation.|exotic composition igneous rock|||Y||17-JAN-23
Nobbys Coal|28870|Nobbys Seam|14196|||Yes|Member, phase|Invalid|Other new published name|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|39292||||||This name is invalid. Nobbys Tuff has priority. This Formation was downgraded to the informal Nobbys coal seam instead. Original name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Banded coal (moderately bright), shale, carbonaceous shale (high ash content).|organic rich material|fine grained siliciclastic rock||N||14-AUG-23
Nobbys Tuff|14198|Nobbys Tuff Member|14197|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Newcastle Coal Measures|27861|||Lopingian||||eruption|Wuchiapingian|255.02|.03|isotopic, U/Pb-Pb/Pb, TIMS|magmatic crystallisation|2.22|25||No|29922||||||Formation status. Replaces Nobbys Tuff Member, Nobbys Chert. Thickness: 0.5-25m, 24.4m in type section at Nobbys Headland.|Tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, chert.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Nobbys coal seam|35126|Nobbys Coal|28870|||Yes|Formation, beds|Informal|Variation of published name|Fully described|Lambton Formation|10113|||Late Permian||||deposition|Late Permian||||||||No|23055||||||Nobbys Coal has been downgraded to the informal Nobbys coal seam instead.||organic rich sedimentary rock|||N||17-JAN-23
Nolan Dolerite|14209|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Triassic||||intrusion|Upper Triassic||||||||No|29901||||||Lithology description from GSNSW seamless geology 2023.|Mid-grey dolerite.|basic intrusive rock|||Y||26-SEP-23
Nombi Extrusives|27863|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||Garrawilla Volcanics|27082|Bathonian|||inferred, geological correlation||Norian|||inferred, geological correlation|||||No|29698||||||Also used in GSNSW seamless geology dataset 2021. For use in Alkaline Rocks data compilation.|Basanite with analcime and large resorbed crystals of olivine and clinopyroxene, emplaced as structureless flows (0.3 to 4.5 m thick).|foid-bearing volcanic rock|||N||17-JAN-23
Nombiginni Volcanics|23876|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Lochkovian||||eruption|Pridoli||||||1500|NSW|No|37772|41126|E.Scheibner|11-AUG-80||||Plagioclase-phyric dacite and minor quartz-plagioclase phyric rhyolite lavas (A-type). Locally amygdular with micropoikilitic to spherulitic matrix, intercalated with subordinate arenite.|acid volcanic rock|medium-coarse grained siliciclastic rock||N|A-type|04-SEP-23
Nonnington Leucomonzogranite|38270|Nonnington Leucoadamellite|14213|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bolivia Range Suite|73987|Middle Triassic|240.5|||intrusion|Late Permian|251.7|2.1||||||No|23811||||||See also Nonnington Leucoadamellite. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Moonbi Supersuite; now of the Bolivia Range Suite in the Stanthorpe Supersuite.|Fine to medium grained, equigranular, saccharoidal, biotite-poor leucogranite. (Probably leucogranite phase of Mackenzie Monzogranite).|acid intrusive rock|||Y|I-type|19-OCT-23
Noonthorangee Formation|76142|Noonthorangee Subgroup|35622|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ponto Group|35621|||Middle Cambrian|508.6|3.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Middle Cambrian|512|3.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|66623|66623|||||Redefined; formerly portion of Wonominta beds (Warris 1967), then Noonthorangee Subgroup (Buckley 2000). Unlike the former Noonthorangee Subgroup, it has no formal members, and intrusive and extrusive rocks are now included in Bittles Tank Volcanics. Three feldspathic air-fall tuffs have been dated. Thickness c. 2 km.|Mostly non-magnetic meta-mudstone-phyllite, locally grading into metasiltstone or metasandstone; locally interbedded with felsic, laminated and cherty (airfall) tuff; some calcareous phyllites and quartz-magnetite rocks.|fine grained siliciclastic rock|acid volcanic rock||N||17-JAN-23
Nootumbulla Sandstone|14234|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Mutawintji Group|72958|||Late Cambrian||||deposition|Late Cambrian||||||153||No|43501|66623|||||Equivalent to the Scopes/Scropes Range Formation (GSNSW 2007).|Folded and weakly cleaved feldspathic sandstone, shale, siltstone; includes some limestone and basal polished quartz pebble conglomerate near Comarto.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Norholm Sandstone Member|23878|||||Yes|Member, phase|Formal|Resvd name published|Defined|Boothumble Formation|2294|||Lower Devonian||||deposition|Devonian||||||650|NSW|No|41394|41394|G.MacRae|05-OCT-82|||Lith desc from GSNSW seamless geology 2023.|Massive to laminated, lithic-quartz and quartz-rich sandstone. Conglomerate locally with clasts of quartz and quartzite. Ripple marks, minor siltstone and shale.|siliciclastic sedimentary rock|||N||11-SEP-23
North Britain Monzogranite|82615|Hell Hole Monzogranite|77099|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Wards Mistake Suite|67903|Middle Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, to replace the invalid Hell Hole Monzogranite used in 2017.|Light grey-white, fine- to medium-grained, porphyritic biotite-hornblende monzogranite.|acid intrusive rock|||Y|I-type|19-OCT-23
North Brother Granodiorite|82511|||||Yes|Formation, beds|Formal|Other new published name|Described|||The Brothers Suite|77628|Upper Triassic|||||Upper Triassic|212.4|4.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|Fine- to medium-grained, porphyritic two-pyroxene-amphibole microgranite to granodiorite. A-type.|acid intrusive rock|||Y|A-type|23-AUG-23
North Mooney Complex|28874|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Ludlow|425|6|isotopic, K/Ar|magmatic crystallisation|Wenlock|426.8|2.2|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|29682|22638|||||SHRIMP date form a pegmatitic gabbro within the Complex.|Dunite, wehrlite, gabbro, diorite.|ultramafic intrusive rock|basic intrusive rock|oceanic backarc|Y||17-JAN-23
North Peak porphyry|29253|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|34449|||||||||||U||17-JAN-23
North Ridge Basalt|14280|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Lord Howe Volcanic Complex|83554|||Messinian|6.62|.22|isotopic, K/Ar|eruption|Messinian|7.2|.08|isotopic, K/Ar||200||NSW|Yes|61946||McDougall I., Embleton B.J.J., Stone D.B.||||Contains large crystals of plagioclase, clinopyroxene and rare olivine. Used in GSNSW Seamless Geology 2021.|Tholeiitic lavas.|basic volcanic rock|||N||17-JAN-23
North Stockton Sandbeds|80169|||||Yes|Formation, beds|Informal|Other new published name|Fully described|||||Holocene|||||Holocene||||||||No|68811|||||||Sand|sediment|||N||17-JAN-23
North Toukley Coal Lens|14282|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34270||||||||organic rich sedimentary rock|||N||17-JAN-23
North peridotite|83922|West Lynn North Igneous Complex|77352|||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||||Middle Ordovician||||||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023 as 'Westlyn Igneous Complex - North peridotite'. Ofiw_y.|Peridotite.||||Y||04-AUG-23
Northam Coal Member|22567|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||D.Butel|03-AUG-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash (7-14% raw), bituminous  (soft coking) coal, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Northcotte Formation|23880|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Tamworth Group|17757|||Emsian||||deposition|Pragian||||||||No|38686||P.Cawood|03-OCT-78||||Green sandstone and siltstone, tuff, minor argillite; rare limestone.|siliciclastic sedimentary rock||island arc|N||11-SEP-23
Northern Limestone|28875|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41863||||||Descriptioin of distribution, not stratigraphic unit.||carbonate sedimentary rock|||N||17-JAN-23
Northparkes Volcanic Group|35020|Northparkes Group|38197|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Katian||||eruption|Darriwilian||||||||No|24417|24417|Raymond, O.L.|17-FEB-00|||Forbes 1:250 000 sheet, Parkes, Bogan Gate 1:100 000 sheets.  New group (03/32987). This name was replaced by the Northparkes Group for much of the 2000s, but GSNSW has returned to using Northparkes Volcanic Group in their Seamless Geology datasets. Age and constituents updated from GSNSW seamless geology dataset 2023.|Andesitic to basaltic and trachytic lavas and volcanic breccias, monzonitic intrusives, volcaniclastic sandstone and conglomerate, limestone, mudstone; commonly altered and sheared in Parkes Fault Zone.|intermediate volcanic rock|basic volcanic rock|island arc|N||31-AUG-23
Noumea beds|14313|Noumea Beds|14312|||Yes|Formation, beds|Informal|Variation of published name|Described|Parry Group|14916|||Famennian||||deposition|Frasnian||||||300||No|37987||||||See also Noumea Formation - probably misspelt?|Interbedded massive and andesitic lithic wacke, pebbly wacke, laminated siltstone and mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Novice Sandstone Member|14315|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Permian||||deposition|Permian||||||||No|34569||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Nowra Sandstone|14320|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Shoalhaven Group|16844|||Kungurian|||biozone|deposition|Kungurian|||biozone|deposition||90|NSW|No|43346|43346|||||See also Lexicon. SI56-9. Age: late Kungurian ~273-272 Ma from 2010 biozonation chart. Previously considered to be a little younger (Roadian, Guadalupian).|Quartzose sandstone, minor siltstone plus conglomerate beds.|medium-coarse grained siliciclastic rock|||N||03-SEP-23
Nowranie Creek Formation|26082|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Coorabin Coal Measures|4633|||Late Permian||||deposition|Late Permian||||||7|NSW|Yes|35498|35498|Palese, G.W.|15-NOV-75|NSW SNSC|20-JUN-76||Coarse sandstone, siltstone, carbonaceous shale.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Noyeau Hollow Andesite|24434|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||||||eruption||||||1500|3000|NSW|Yes|39655||S.J.Richardson|18-OCT-76|Russell, T.|18-JUN-82|||intermediate volcanic rock|||N||17-JAN-23
Nubingerie Formation|31299|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Devonian||||deposition|Devonian||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Nubrigyn Member|33380|Nubrigyn Formation|14326|||Yes|Member, phase|Formal|Variation of published name|Defined|Cunningham Formation|5031|||Emsian||||deposition|Lochkovian||||||400|NSW|No|22768|23170|Meakin S.|16-FEB-99|||Used on Dubbo 1:250 000, 2nd ed.|Arenites, rudites and olistostromes with olistoliths up to 1km in length|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Nuchea Conglomerate|41602|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mutawintji Group|72958|||Late Cambrian|||inferred, overlying unit|deposition|Late Cambrian|||||50|110||No|50618|66623|||||Spelling of parent group has been changed. Minimum age constrained by fossils in overlying Nootumbulla Sandstone (Ref ID66623, 2010)|Medium- to coarse-grained conglomerate with highly polished and very well-rounded blue-grey, strongly recrystallised quartzite pebbles, cobbles and boulders to 60 cm diameter; minor interbedded red quartzose pebbly sandstone lenses.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Nulla Nulla Sand Member|14339|Nulla Nulla Sand|14341|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Lake Victoria Sand|10073|||Holocene||||deposition|Pleistocene|||||||NSW|No|30996|30996|||||See also Nulla Sand Member.|Sand|sediment|||N||17-JAN-23
Nullawa Member|77137|||||Yes|Member, phase|Formal|Resvd name published|Described|Bugwah Formation|29529|||Quaternary|.001||luminescence|deposition|Quaternary|.002||luminescence|||||No|68069||||||Reserved as Nullawa Formation (Burton, 2004). Has three facies mapped separately: channel, crevasse splay and backplain. Age from single thermoluminescence sample, conflicts with parent Bugwah Formation.|Unconsolidated red-brown, beige and grey sand, silt, silty clay and clay; carbonate nodules.|regolith|||N||17-JAN-23
Nullawonga Latite Member|73515|||||Yes|Member, phase|Formal|Other new published name|Described|Forest Reefs Volcanics|6819|||Llandovery||||eruption|Katian||||||||No|63285|||||||Consists of latitic lava, breccia and ignimbrite.|intermediate volcanic rock|||N||17-JAN-23
Nulling Member|30855|Nulling Formation|14378|||Yes|Member, phase|Formal|Variation of published name|Described|Piambong Formation|30646|||Lower Devonian||||deposition|Lower Devonian||||||||No|22529||Colquhoun G., Meakin S.|30-JAN-97|||Volcanics. Mudgee area.|Rhyodacite-dacite flows, volcanic arenite, quartz-rich conglomerate.||||N||21-JUL-23
Numbla Vale Monzogranite|76963|Numbla Vale Adamellite|14381|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Dalgety Suite|5143|Late Silurian||||intrusion|Silurian|435.6|4.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|72571||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. See also RefID 67060 p505. Used in GSNSW seamless geology dataset 2021.|Medium-grey, medium-grained, cordierite-biotite monzogranite, mineral aggregation results in coarse-grained appearance|acid intrusive rock|||Y|S-type|17-JAN-23
Numeralla Chert Member|33831|Numeralla Chert|32461|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Abercrombie Formation|69898|||Darriwilian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||||No|22545||||||Updated from GSNSW seamless geology dataset 2021. Age based on conodonts.|Brown to tan to yellow, massive to blocky, sporadically laminated, chert beds, with interbeds of ?distal turbidites. Several mappable chert bands range from 20 to 100 m thick, some being siliceous mudstones with sporadic black bioturbations.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Numinbah Valley Formation|14383|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Cenozoic||||deposition|Upper Cretaceous||||||||No|44784|||||||Weakly consolidated to unconsolidated sub-basaltic sediments containing dicotyledonous leaf impressions (younger than mid-Cretaceous)|sedimentary rock|||N||17-JAN-23
Nundle Suite|29562|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Clarence River Supersuite|36112|Cisuralian|||||Cisuralian||||||||No|38822||||||Listed but said to be not used in GSNSW seamless geology dataset 2021. Name may be obsolete.|Porphyries, granitoids, leucocratic sills and dykes.|acid intrusive rock|||Y|I-type|17-JAN-23
Nundooka Sandstone|25356|Nundooka sandstone|14390|||Yes|Formation, beds|Formal|Variation of published name|Defined|Mulga Downs Group|26063|||Famennian||||deposition|Givetian||||||1425|NSW|Yes|43501||Neef G., Bottrill R.S., Ritchie A.||NSW SNSC|06-JUN-94|Investigation of fish fauna suggests Middle Devonian age likely rather than Famennian age assigned by Neef et al (1995). See Young et al (2010) , Nundooka Sandstone"". Note that RefID 23336 Neef et al (1996) proposes a substantially increased maximum thickness.|Subdivided: Upper Light Grey Arenite (with kaolinitic matrix and >370m thick); Marker Bed of quartzose fine-arenite (28-55m thick); Central Light Grey Arenite (kaolinitic matrix, ~55m thick); Quartzose Arenite (150-320m thick); Basal Friable Arenite (475-|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Nundora Formation|37338|Nundora lavas|69955|||Yes|Formation, beds|Formal|Resvd name published|Defined|Teltawongee Group|37348|||Middle Cambrian||||deposition|Early Cambrian|||||||NSW|No|66623|66623|Direen N.|29-DEC-98|||Definition in PhD. To be published in GSNSW Bulletins?  Published as the informal term Nundora lavas (Crawford et al 1997 AJES 44/6) prior to this reservation.|Maroon, turbiditic silty and muddy, massive sandstones; graded bedded; erosional basal contact with rip-up clasts, coarse-grained basal sand, detrital muscovite to 3 mm. Unfossiliferous. Shows climbing ripples, laminations and rare muddy tops|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Nunduro Conglomerate|26814|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Teamsters Creek Subgroup|17916|||Neoproterozoic||||deposition|Neoproterozoic||||||70||No|30261|||||||Quartzite clast-dominated conglomerate with a pebbly silty matrix; rare large clasts (up to 20 m).|siliciclastic sedimentary rock|||N||17-JAN-23
Nungar beds|14394|Nungar Beds|14392|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||||Eastonian||||deposition|Darriwilian||||||||No|45147||||||See also Nungar Group, published 2007.|Quartz arenite, siltstone and shale (distal flysch sequence), black shale|siliciclastic sedimentary rock|||N||17-JAN-23
Nungatta Granodiorite|14398|Nungatta Granite|14396|||Yes|Formation, beds|Formal|Other new published name|Described|||Nungatta Suite|31490|Lower Devonian||||intrusion|Late Silurian||||||||No|41850||||||Candelo Supersuite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G19|Highly magnetic, grey, medium grained, weakly foliated, hornblende-biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Nungatta Suite|31490|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Consists of one pluton: Nungatta Granodiorite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Nunkeri Leucogranite|36332|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Pogson D.|20-AUG-01|||Goulburn 1:100 000 sheet area.||acid intrusive rock|||Y||17-JAN-23
Nurri Group|14417|Nurri Formation|14416|||Yes|Group, Suite|Formal|Variation of published name|Redefined|Cobar Supergroup|27673|||Lower Devonian|||||Lower Devonian||||||||No|35219|43774||||||Coarse-grained clastics and thick beds of sandstone. Lesser siltstone, mudstone.|siliciclastic sedimentary rock|||N||03-AUG-23
Nurri Group and possible equivalents 78460|78460|||||Yes|Formation, beds|Unnamed|Unnamed published|Redefined|||||Lower Devonian||||deposition|Late Silurian||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. Dcn. Belt of linear trends of low to moderate magnetic intensity. Sediments and tuff of the Nurri Group and possible equivalents. Also used in GA 1:2.5m Bedrock Geology.|sediments, tuff|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Nyangay granite|76036|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Informal unit based entirely on geophysics. Interpreted as S-type granite. Shown as Late Devonian in RefID 66943.|Interpreted as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Nymagee Igneous Complex|26087|Nymagee Granite|14435|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Late Silurian||||intrusion|Early Silurian|428.1|4.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|39214|41528|||||Max Age: 440 Ma Rb-Sr. Different unit to Nymagee felsic dykes.|Massive, porphyritic, biotite-muscovite granite and muscovite-biotite monzogranite; lesser massive equigranular muscovite-biotite monzogranite (S-type). Strongly foliated, coarse, biotite-muscovite granite and monzogranite.|acid intrusive rock|||Y|S-type|17-JAN-23
Nymboi Granite|78521|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Triassic||||magmatic crystallisation|Upper Triassic|221.3|2.2|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|68111|||||||Granite.|acid intrusive rock|||Y||17-JAN-23
Nymboida Coal Measures|14438|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Middle Triassic||||deposition|Middle Triassic||||||1000|NSW|No|43384|43881|||||Not  included in  the Woogaroo Subgroup (Bundamba Group).|Lithic sandstones (wackes, minor arenites), siltstone, polymictic conglomerate, coal, rhyolitic tuff, basalt.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||04-JUL-23
Nyngan Igneous Complex|77334|Nyngan Intrusive Complex|33875|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Fifield Suite|77333|Silurian|||inferred||Ordovician|||inferred|||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Ultramafic igneous rock with an E-W axis of elongation. See also Fifield Complex and variations. Assume this is to replace Nyngan Intrusive Complex. Used in GSNSW seamless geology dataset 2021, 2023. See also distinct unit Nyngan South diorite, in same area.|Ultramafic igneous rock|ultramafic igneous rock|||U||13-JUN-23
Nyngan South diorite|82834|Nyngan South Igneous Complex|77348|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Used in GSNSW seamless geology dataset 2023.|Described as mafic igneous rock, but name is diorite [intermediate igneous rock]??|intermediate intrusive rock|basic igneous rock||Y||13-JUN-23
Nyora Granite|14445|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lochkovian|419.1|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|419.1|2.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|42726||||||Age: 419.1+/-2.5Ma (provisional).  Initially thought to belong to Koetong Suite but its transitional S- to A-type character and Late Silurian age suggest otherwise. Cargelligo District.|Coarsely crystalline granite with feldspar megacrysts to 10cm and rare metasedimentary xenoliths.|acid intrusive rock|||Y||17-JAN-23
Nyrang Sandstone Member|14446|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Wallace Shale|19257|||||||deposition|||||||||No|33116||||||(Pickett, 1982).||siliciclastic sedimentary rock|||N||17-JAN-23
O'Briens Creek Sandstone Member|40931|O'Briens Creek Sandstone|25359|||Yes|Member, phase|Formal|Variation of published name|Defined|Yass Formation|20908|||Wenlock||||deposition|Wenlock|||||15|450|NSW|No|22857|68592|||||Interbedded with Cliftonwood Limestone Member within the Yass Formation.  To be replaced by Fairy Hole Creek Sandstone Member on the new GOULBURN 1:250 000 sheet (2006) - does NOT appear that it has on Prov 2nd.ed. 2008 (PP May08). Nor on final 2013 edition. Distinguished by medium- to coarse-grained, quartz-lithic or quartz-feldspathic sandstone displaying cross-bedding, ripple marks, mud cracks, and rain prints.|Brown-beige to off-white, very coarse- to medium-grained quartzo-feldspathic sandstone, poorly sorted, sub-rounded to angular grains. Sparsely fossiliferous (brachiopods, gastropods, crinoid stems),  rare laminar siltstone near the base.|siliciclastic sedimentary rock|||N||07-SEP-23
O'Briens Monchiquite|23882|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Cretaceous|||||Cretaceous||||||||No|36220||H.N.Bowman|17-SEP-71|||Said to be part of Nebo Volcanic Province by GSNSW, in their 2023 seamless geology.|Mid to dark grey monchiquite.||||N||26-SEP-23
Oakdale Formation|14461|Oakdale Group|14463|||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Katian||||deposition|Darriwilian||||||2000||No|43528|23170|||||Defined 1960. Replaced by Oakdale Group. Oakdale Sandstone, Qld is a quite different Tertiary unit. Reduced to Fm again for Bathurst 1:250 000 sheet NGMA project. Molong-Wellington Volcanic Belt.|Mafic volcanic sandstone; basalt, basaltic andesite, latite lavas and intrusions; volcaniclastic breccia and conglomerate, siltstone, shale, chert; minor allochthonous limestone and calcareous sediments.|medium-coarse grained siliciclastic rock|basic volcanic rock||N||17-JAN-23
Oakfields Tongue Member|82616|Oakfields Tongue|26088|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Isismurra Formation|8801|Mississippian|||inferred||Mississippian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Purple and red to buff lithoidal dacitic ignimbrite.|acid intrusive rock|||N||08-SEP-23
Oaklands Coal Measures|14466|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43467||||||||organic rich sedimentary rock|||N||17-JAN-23
Oakley Limestone Member|28886|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|No|33063|33063|||||For lithology description see Semeniuk (1973a,b). Lithology description from GSNSW seamless geology 2023.|Massive or very thick-bedded skeletal lithoclast grainstone.|carbonate sedimentary rock|||N||28-SEP-23
Oban River Leucomonzogranite|38276|Oban River Leucoadamellite|14479|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kingsgate Suite|82536|Lower Triassic|248||isotopic, Rb/Sr|intrusion|Lopingian|252.1|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|23811||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously of Oban Suite. Of Kingsgate Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Pink to white, coarse- to very coarse-grained, equigranular biotite leucomonzogranite and leucosyenogranite. I-type|acid intrusive rock|||Y|I-type|22-AUG-23
Oberon Basalt|83201|||||Yes|Formation, beds|Invalid|Other new published name|Briefly described|||||Langhian|16.6|.4|isotopic, K/Ar||Aquitanian|23.4|.6|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021 and GA alkaline rocks dataset. Invalid name. Multiple other uses of Oberon in same area.|Weakly porphyritic basanites and alkali basalts dominated by olivine, titaniferous clinopyroxene, plagioclase and Ti-Fe oxides with minor ilmenite, nephaline, apatite, and rare volcanic glass.|foid-bearing volcanic rock|basic volcanic rock||N||17-JAN-23
Oberon Granite|14480|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Oberon Suite|31534|Carboniferous||||intrusion|Carboniferous||||||||No|43515|||||||Coarse-grained, porphyritic and equigranular biotite hornblende granite|acid intrusive rock|||Y|I-type|17-JAN-23
Oberon Hill Chert|14481|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40622|||||||||||N||17-JAN-23
Oberon Suite|31534|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Oberon Supersuite|31533|Carboniferous|||||Carboniferous||||||||No|42726||||||May have been replaced by Redfern Suite, or partially replaced?  Contains the Oberon Granite.|Coarse-grained, porphyritic and equigranular biotite hornblende granite; grey, coarse-grained biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Oberon Supersuite|31533|||||Yes|Supergroup|Formal|Other new published name|Defined|||||Carboniferous|||||Carboniferous||||||||No|42726||||||Bathurst 1:250 000 sheet area. To be used on new GOULBURN 1:250 000 sheet (2006) and will include Abercorn, Columba, Kanangra and Lockyersleigh Suites.|Oxidised to reduced, occasionally strongly fractionated, I-type biotite-hornblende granite, leucogranite, and granodiorite. Equigranular to occasionally porphyritic.|acid intrusive rock|||Y||17-JAN-23
Obley Granite|27053|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Yeoval Suite|31486|Lower Devonian||||intrusion|Lower Devonian||||||||No|39658||I.Paterson|02-FEB-82|||See also Yeoval Granite (considered equivalent at one time).|Medium to coarse grained pink granite|acid intrusive rock|||Y||17-JAN-23
Ogilvies Monzogranite|77027|Ogilvies Adamellite|32246|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|17-JAN-23
Ogilvies Suite|31622|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Old Armidale group|35053|||||Yes|Group, Suite|Informal|Other new published name|Described||||||||||||||||||No|23050||||||Described|||||N||17-JAN-23
Old Budda Tank Breccia|82617|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Basaltic breccia with later alkali basalt and late-stage baryte-bearing trachyte. Breccia includes ultramafic mantle, crustal & country rock fragments. Basalt is olivine and clinopyroxene phyric with a glassy groundmass. Pervasive clay-carbonate altered.|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
Old Coach Road Formation|70129|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wana Karnu Group|70131|||Middle Devonian||||deposition|Lower Devonian||||||||No|66918|66623|Sharp, T.|10-MAR-06|||To be used in the Broken Hill Region.|Dominated by medium- to coarse-grained, white to cream, flaggy sandstones, rarely laminated and pebbly, with interbedded conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Old Cork beds|69703|Old Cork Beds|14513|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lutetian||||deposition|Lutetian||||||78||No|61155||||||GSQ (2013) show this and Mueller Sandstone as part of their Old Cork Basin, a ponding of the ancestral Diamantina River. These units are within the present catchment, and of the right age to alternatively be considered by GA (in 2022) to be an erosional remnant of the Lake Eyre Basin|Fluviatile and lacustrine grey mudstone, and white limestone, minor sandy siltstone, silty sandstone, calcareous sandstone; duricrusted|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Old Hut Limestone Member|14514|Old Hut Limestone|14515|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Cowombat Siltstone|25864|||Silurian||||deposition|Silurian||||||||No|37727|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Old Leake Quartz Monzonite|35067|Old Leake Monzonite|32527|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gulgong Suite|31452|Tournaisian||||intrusion|Tournaisian|357.6|4.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|23043|23170|||||Defining ref (Dubbo Explan Notes, 1999) gives age as Late Devonian to Early Carbonfierous.|Mafic quartz monzonite|intermediate intrusive rock|||Y||17-JAN-23
Old Red Sandstone|14519|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||deposition|||||||||No|42050||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Olivedale Tuff Member|27527|Ballast Chert|28343|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lochkovian||||eruption|Lochkovian|||||||NSW|No|35287|||||||Massive, blue-grey vitric to lithic-vitric tuff of rhyolititc composition.|acid volcanic rock|||N||17-JAN-23
Olney Formation|14553|Renmark Beds, Upper|40366|||Yes|Formation, beds|Formal|Other new published name|Defined|Renmark Group|16036|||Chattian||||deposition|Bartonian||||||320|SA|No|31745|42966|||||In part lateral equivalent to Buccleuch Formation? Hosts more lignitic coal than any other formation in the Murray Basin.|Unconsolidated to poorly consolidated, thinly-bedded, dark brown, grey, black, carbonaceous sand, silt, clay, brown coal, peat; commonly micaceous, pyritic, ferruginised; intercalated poorly-sorted fine-medium quartz sand and polymictic sand.|regolith|||N||17-JAN-23
Omadale Brook Granodiorite|82352|||||Yes|Formation, beds|Formal|Other new published name|Described|||Omadale Brook Suite|82351|Roadian|||inferred||Kungurian|272.5|1.65|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628|||||||Waxy, medium-grained orthopyroxene-clinopyroxene-(hornblende-biotite) granodiorite; porphyritic, finer-grained chilled marginal phase. I-type.|acid intrusive rock|||Y|I-type|16-AUG-23
Omadale Brook Suite|82351|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Barrington Tops Supersuite|82349|Guadalupian|||inferred|magmatic crystallisation|Kungurian|277.1|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No||||||||Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Omeo Metamorphic Complex|14578|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Wenlock||||intrusion|Llandovery|||||||VIC|No|33602||||||See also Omeo Metamorphics.  Includes [or intruded by?]  larger intrusions Mac Creek and Wattle Grove Granodiorites. Subdivided into informal igneous and metamorphic phases. Protolith: Pinnak Sandstone.|Granite, pegmatite, leucogranite, granodiorite, schist, phyllite, gneiss and migmatite.|acid intrusive rock|high grade metamorphic rock||N||01-AUG-23
Onavale Coal Member|77371|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||Greenfield, J. (GSNSW)|26-SEP-12|||This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Ondyong Point Formation|24437|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Weereewa Group|77796|||Quaternary||||deposition|Piacenzian|2.97|.23|isotopic||54|106|NSW|Yes|42820|42820|Abell, R.S.|17-SEP-84|||Replaces Rocky Point Formation. NLR Jan 91 but BD in J1202/03 P163. Approved by A. Waltho 17-MAY-1990?|Cyclic sand, clay, silt; fluvio-lacustrine.|regolith|||N||20-AUG-23
Onslow Granodiorite|24440|Michelago Granite|11771|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||intrusion|Lower Devonian|395|8|isotopic, K/Ar||||NSW|Yes|36414|36413|S.J.Richardson|05-JUN-75|Hawke, J.|20-FEB-79|Formerly of Michelago Igneous Complex. Now ungrouped.|Medium-grained mafic rich (20%) granodiorite with bluish-coloured quartz crystals|acid intrusive rock|||Y|I-type|17-JAN-23
Oodnadatta Formation|14592|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Marree Subgroup|11374|||Albian||||deposition|Albian||||||229|SA|No|44658||||||Formerly of Neales River Group, now Rolling Downs Group [2012]. Age - Albian, based on spore pollen assemblages, see ref Strzelecki 1:250k explan notes (1995). Not easily distinguishable from Bulldog Shale, esp. if Coorikiana Sst absent.|Claystone and siltstone, interbedded; with fine-grained sandstone, calcareous and ferruginous concretions; limestone with celestite and barite veins.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Oolambeyan granite|76037|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, intrusive relationship|||||No|66934||||||Of Baconian Swamp Granite Suite. Appear to be informal unit based entirely on geophysics, although there may be some data from water bores?  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943.|Inferred as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Oolong Granite|14598|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Gunning Suite|31580|Pridoli||||intrusion|Ludlow||||||||No|42726||||||Formalised on GUNNING map sheet 8728 (2001). Part of the Wyangala Batholith.|Grey to cream, med- to coarse-gr., equigran. to porphyritic hornblende-biotite granite+granodiorite with abundant ovoid microdiorite enclaves. Pluton is zoned with core of fine- to med.gr. leucocratic qtz.-feldspar-phyric granite with high K rad.response|acid intrusive rock|||Y||17-JAN-23
Ootha Group|14623|Ootha beds|14626|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Devonian||||deposition|Late Silurian||||||||No|34469||Sherwin L.|27-JUL-99|||Previously referred to as "Ootha Series" and "Ootha Formation" and included in the Derriwong Group. Reduced to formation status (Ootha Formation) by Sherwin (1996b) -replaced by Ootha Formation, Ootha Subgroup, but name revived for the 1999 FORBES 1:250 000 sheet notes.|Siltstone, sandstone, mudstone, basal polymictic conglomerate; minor rhyolitic tuff, volcaniclastic sandstone.|siliciclastic sedimentary rock||oceanic backarc|N||17-JAN-23
Orallo Formation|14635|Orallo Coal Measures|14633|||Yes|Formation, beds|Formal|Variation of published name|Defined|Blythesdale Group|2034|||Berriasian|140|||deposition|Tithonian|149|||||306|NSW|No|44371|36570|||||Formerly Orallo Coal Measures, Fossil Wood Beds. One NSW ref suggests Kimmeridgian maximum age. Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Chinchilla 1:250k sheet area.|Medium-grained, sub-lithic sandstone and interbedded siltstone and mudstone with minor coal and fossil wood.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock|intracratonic|N||17-JAN-23
Orara Formation|82372|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Cretaceous|||||Middle Jurassic||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Lower quartzose sandstone and upper fine-grained mudstone and carbonaceous rocks.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||05-JUN-23
Orchard Formation|31296|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Toongi Group|26178|||Silurian||||deposition|Silurian||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Ordovician dykes, veins 78253|78253|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician||||intrusion|Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|?mafic dykes and veins.|basic intrusive rock|||Y||17-JAN-23
Ordovician mafic volcanics 76679|76679|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|434|||eruption|Lower Ordovician||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly basaltic rocks; may include minor ultramafic volcanics|basic volcanic rock|||N||17-JAN-23
Ordovician mafic-ultramafic intrusives 76716|76716|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|434|||intrusion|Upper Ordovician|459|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly ultramafic intrusive rocks.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Ordovician sedimentary rocks 76682|76682|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|434|||deposition|Lower Ordovician||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Ormoral Volcanics|35392|Rosenthal Creek Formation|16352|||Yes|Formation, beds|Formal|Other new published name|Described|Silverwood Group|16903|||Middle Devonian||||deposition|Lower Devonian||||||620||No|61392||van Noord K.A.A.|05-APR-00|||Age unknown, at least younger than Early Devonian. Location: Warwick, Allora 1:100k sheet areas, 9341, 9241. Volcanics, hypabyssal intrusives and volcaniclastic rocks mainly, lesser sandstone.|Volcaniclastic, turbiditic arenite, siltstone with minor mudstone; peperite; minor volcaniclastic lapilli breccia, subalkaline spilite.|siliciclastic sedimentary rock||island arc|N||17-JAN-23
Otford Sandstone Member|14671|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Wombarra Claystone|20389|||Lower Triassic|||inferred, lithostratigraphic correlation|deposition|Late Permian|||inferred, lithostratigraphic correlation|||||No|43383||||||Age from parent unit - Wombarra Claystone.||siliciclastic sedimentary rock|||N||17-JAN-23
Ottery Monzogranite|77622|Ottery Adamellite-Porphyrite|14680|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Wards Mistake Suite|67903|Middle Triassic|||inferred|intrusion|Lopingian|||inferred|||||No|71628||Blevin, P. (GSNSW)|14-JUN-12|||Name updated to meet IUGS standards. See also previous name. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Porphyritic biotite-hornblende monzogranite; locally micrographic; extensively altered.|acid intrusive rock|||Y|I-type|19-OCT-23
Ourimperee Ignimbrite Member|39261|Ourimperee|36750|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian|||inferred|intrusion|Serpukhovian|||inferred|||115|NSW|Yes|50613|50613|Roberts J.|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Originally reserved as Ourimperee. Volcanic member of the Gunnan package (informal grouping of stratigraphically recognisable distinctive, mappable units.|Pink, red or beige, unwelded to moderately welded ignimbrite with quartz, plagioclase, K-feldspar, biotite, opaque minerals and pumice fragments; ground mass poikilolitic.|acid volcanic rock|||N||17-JAN-23
Owendale Intrusive Complex|24448|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Fifield Suite|77333|Lower Devonian|||||Ordovician|||||||NSW|Yes|40365|40365|S.J.Richardson|13-SEP-79|Russell, T.|18-JUN-82|Also used in GSNSW seamless geology dataset 2021, 2023. Previously informally known as Kelvin Grove Intrusion.|Dunite, pyroxenite, hornblende pyroxenite, monzodiorite|ultramafic intrusive rock|intermediate intrusive rock||Y||13-JUN-23
Oxley Metamorphics|26827|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Sandon Association|67995|||Mississippian|||||Upper Devonian||||||||No|31694||||||Different unit to Early Devonian Oxley volcanics.|Siliceous schists and phyllite with interbedded chert, jasper and metabasalt|metasedimentary siliciclastic rock||accretionary wedge|N||17-JAN-23
Oxley Volcanics|82618|Oxley volcanics|81717|||Yes|Formation, beds|Invalid|Variation of published name|Briefly described|||||Pragian|||inferred||Lochkovian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. This name is invalid. See also Oxley volcanics. Oxley Metamorphics has priority in NSW.|Quartz-pyhric coherent rhyolite. Massive, moderately microcrystalline, quartzo-feldspathic groundmass partially replaced by white mica and carbonate. Subaerial (lava?) flows.|acid volcanic rock|||N||26-SEP-23
Paddys Flat Formation|14761|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Gzhelian||||deposition|Pennsylvanian|305.5|1.4||||||No|32494||||||In NSW only, not Qld.|Thickly-bedded, immature sandstone with feldspathic and lithic clasts commonly altered to clay, and polymictic pebble-cobble, clast-supported conglomerate; minor interlaminated sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Paddys River Volcanics|26093|||||Yes|Formation, beds|Formal|Other new published name|Defined|Douro Group|5668|Hawkins Suite|8179|Wenlock||||eruption|Wenlock|||||||ACT|No|12185|45147|||||To be replaced by Paddys River Volcanic Member, of Hawkins Volcanics? Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group [2012]. This name used in GSNSW seamless geology dataset 2021.|Grey green dacite ignimbrite, limestone and shale lenses, minor rhyolite and andesite|acid volcanic rock|||N||17-JAN-23
Padua Granodiorite|29593|Padua Granite|26828|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Padua Suite|31526|Silurian||||intrusion|Silurian||||||||No|43642||||||Forms part of the Pine Mount Granodiorite of Stevens (1955) and the Pine Mount Intrusive Complex of Madsen (1970).  Intrudes Walli Volcanics.  See also the informal Padua Granite.|Consists of medium grained, equigranular, biotite hornblende granodiorite.|acid intrusive rock|||Y||17-JAN-23
Padua Suite|31526|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Grants Corner Supersuite|31524||||||||||||||No|42726|||||||||||Y||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76597|76597|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1600||||Statherian|1800|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleozoic serpentinite 78234|78234|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Serpentinite|metamorphosed ultramafic rock|||Y||17-JAN-23
Paleozoic ultramafics, undivided 78466|78466|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. MS. Narrow horizons of moderate to high magnetic intensity. Ultramafics, mafic schist, magnetite quartzite. Age unknown. Also used in GA 1:2.5m Bedrock Geology, where age assumed to be Paleozoic.|ultramafics, schist - moderate to high magnetic intensity|ultramafic igneous rock|metamorphic rock||U||17-JAN-23
Palerang Formation|14788|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Silurian||||deposition|Late Silurian|||||920||NSW|Yes|31411|30735|Huleatt M.B.||Bryan, J.H.|27-OCT-75||Quartz sandstone, quartz lithic sandstone, shale, siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Paling Yard Formation|14792|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Black Rock Subgroup|28374|||Famennian||||deposition|Frasnian||||||260||No|43512|43512|||||lith desc from GSNSW seamless geology 2023.|Hematitic shale and fine-grained sandstone. Minor red-purple conglomerate.||||N||11-SEP-23
Pallal Conglomerate Member|26829|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Namoi Formation|13721|||Visean||||deposition|Visean||||||||No|43436|||||||Cross-bedded, coarse-grained wacke, lenticular orthoconglomerate and siltstone. Contains angular sedimentary blocks up to three metres in diameter.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Pamboola Formation|30029|Pamboola|22619|||Yes|Formation, beds|Formal|Resvd name published|Described|Brothers Subgroup|30028|||Late Permian||||deposition|Late Permian||||||89||No|43194||||||Used in GSNSW seamless geology dataset 2021.|Lithic sandstone, siltstone, claystone, conglomerate and intercalated coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||30-MAR-23
Pangee Road Volcanic Breccia Member|26830|Pangee Road Agglomerate Member|14824|||Yes|Member, phase|Formal|Variation of published name|Fully described|Baledmund Formation|954|||Lochkovian||||eruption|Lochkovian||||||200||No|42566||||||Defined as Pangee Road Agglomerate Member. Not related to Pangee Igneous Complex.|Rhyolitic volcanic breccia and tuff.||||N||21-JUL-23
Pangee mafic-ultramafic|82833|Pangee Igneous Complex|77346|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333||||||||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Not related to Pangee Road Volcanic Breccia Member. Used in GSNSW seamless geology dataset 2023|Mafic to ultramafic igneous rock|basic igneous rock|ultramafic igneous rock||U||13-JUN-23
Pappinbarra Formation|22625|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Visean||||deposition|Tournaisian||||||1355||No|22736|22736|Roberts J.|23-NOV-93|||Includes rocks of obsolete Cooperabung Fm.|Turbiditic lithic and volcanolithic sandstone and interbedded siltstone with minor conglomerate, tuff, calcareous sandstone, crinoidal sandstone and limestone.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Paradise Porphyry|27533|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Boyd Volcanic Complex|27117|||Upper Devonian||||eruption|Middle Devonian||||||||No|60007|||||||Granite and rhyolite porphyry.||||U||20-JUL-23
Paragon Group|14860|||||Yes|Group, Suite|Formal|Other new published name|Defined|Willyama Supergroup|20135|||Statherian|1640|||deposition|Statherian|1657|||||1700|NSW|No|38969|39662|W.J.Stroud|19-MAR-82|||Equivalent of Strathearn Group in Olary Domain.|Predominantly graphitic metasediments including phyllite, schists, psammites and minor calc-silicates.|metasedimentary rock|||N||17-JAN-23
Parilla Sand|14873|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wunghnu Group|20670|||Zanclean||||deposition|Late Miocene||||||150|SA|No|70961|50154|||||Parilla Sand in SA only partly correlates with 'Parilla Sand' in Victoria (which is mainly equivalent to Loxton Sands in SA). Equivalent to Dorodong Sand, Norwest Bend Formation.  Parent relationship in "Geology of Victoria", 2003. For discussion on stratigraphic revision of the Murray Group see RefID: 64237 - Parilla Sand was part of the Murray Group original stratigraphic scheme of Ludbrook (1961), together with Norwest Bend Formation, and the underlying Loxton Sand. The two sands and Norwest Bend Formation were replaced by Diapur Sandstone (Lawrence 1966) and then renamed by Lawrence in his 1975 revision of the Murray Group stratigraphy, as Parilla Sand. Overlies Bookpurnong Beds and the Murray Group. The original configuration for this trio of units - Norwest Bend Formation/Parilla Sand/Loxton Sand was retained in the stratigraphic revision by Rogers et al (1998). See Parilla Sands Refid 67179, AJES 58(6), Robson & Webb (2011), for details of proposal that Parilla Sand(s) be superseded by a modified definition of Loxton Sand.|Sand, fine to medium-grained, unfossiliferous, non-marine, clayey, quartz rich; sandy clay.|regolith|||N||17-JAN-23
Parkers Road Coal Member|77073|Parkers Road seam|38315|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Waukivory Creek Formation|24087|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin. Used in GSNSW seamless geology dataset 2021.

|High- and medium-volatile bituminous dull coal sandstone and mudstone.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Parkers Road seam|38315|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by Parkers Road Coal Member [GSNSW July-2012].|||||N||17-JAN-23
Parkes Volcanics|25742|Parkes Andesite|14887|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Northparkes Volcanic Group|35020|||Upper Ordovician||||eruption|Middle Ordovician|465||||||NSW|No|40891|46522||||||Consist of plagioclase-phyric basaltic andesites and andesites with subordinate augite phenocrysts.|intermediate volcanic rock|||N||17-JAN-23
Parkesbourne Granite|35788|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Parkesbourne Suite|69872|Pragian||||intrusion|Pragian||||||||No|50234||Scott M.|23-MAR-01|||Goulburn 1:250 000 sheet area.  Part of the Wologorong Batholith.|Foliated to massive, cream leucocratic muscovite-biotite sodic granite and syenite|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Parkesbourne Suite|69872|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||Wologorong Supersuite|69873|Devonian|||||Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).|Leucocratic, fine- to coarse-grained, equigranular to sparsely porphyritic, muscovite-biotite granite and granodiorite; minor quartz monzonite, aplite and rhyolite dykes. Largely unstrained to strongly foliated to mylonitic. S-type.|acid intrusive rock|intermediate intrusive rock||Y|S-type|17-JAN-23
Parkvale Gabbro|27217|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian|||inferred|intrusion|Lower Devonian|||inferred||||NSW|No|35287|42566||||||Dark blue-green coarsely crystalline horneblende-biotite gabbro.|basic intrusive rock|||Y||17-JAN-23
Parlour Mountain Leucomonzogranite|67895|Parlour Mountain Leucoadamellite|28910|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Triassic||||intrusion|Late Permian|254.7|1.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|69639||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously within the Uralla Supersuite. GSNSW seamless geology dataset 2021 does not group this unit.|Massive, equigranular, medium to coarse grained biotite granite|acid intrusive rock|||Y|I-type|22-AUG-23
Parnell Formation|26096|Parnell Gneiss|14906|||Yes|Formation, beds|Formal|Variation of published name|Defined|Purnamoota Subgroup|15683|Potosi Supersuite|41392|Statherian||||magmatic crystallisation|Statherian|1696|6|isotopic, U/Pb|||500|NSW|No|38969|39662|||||Within the Broken Hill Group (Willyama Supergroup). See also Parnell Gneiss and Parnell Metadolerites. Crystallisation age: 1693+/-5Ma and >/-1682+/-9Ma. metamorphic age 1594+/-7 Ma (Page et al. 2005).|Comprises quartzo-feldspathic gneiss. Some embedded metasediments and bounding amphibolites.|high grade metamorphic rock||continental rift|Y||17-JAN-23
Parrabel beds|14913|Parrabel Beds|27218|||Yes|Formation, beds|Informal|Variation of published name|Fully described|Nambucca beds|29689|||Permian||||deposition|Permian||||||||No|41347|||||||Diamictite, paraconglomerate, conglomerate, lithic sandstone, mudstone, limestone, metabasalt and minor vitric tuff.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Parry Group|14916|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Mississippian||||deposition|Upper Devonian|||||||NSW|No|43399|43399|||||Defined 1961. In the Tamworth Belt.|Mudstone, sandstone, radiolarian argillite, conglomerate, limestone, lava sills and minor chert, breccia and siltstone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Paterson Volcanics|14945|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Serpukhovian|307|4|isotopic, K/Ar|eruption|Serpukhovian|325.3|3.8|isotopic, U/Pb|||150||No|43440|44244|||||Max Age: 328 (+/-) 1.4 Ma.  Supersedes Paterson Rhyolite also.|Grey-green rhyodacitic ignimbrite.|acid volcanic rock||forearc|N||17-JAN-23
Patho pluton|83407|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73496||||||Used in RefID 73496 Moore (2005). G751. Weakly reversely magnetised with response about 10 nT below surrounding rocks;  where subcropping gravity response about 5 micrometres/second/second below surroundings but part of a broader 70 micrometres per second squared low. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - patho Pluton.|Igneous intrusive rock. Interpreted S-type granite.|igneous intrusive rock|||Y||17-JAN-23
Patmore Limestone Member|40948|||||Yes|Member, phase|Formal|Other new published name|Defined|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||||No|50230||||||Part of the Murrumbidgee Group.|Light grey, massive, medium-thick bedded crinoidal limestone.|carbonate sedimentary rock|||N||17-JAN-23
Patonga Claystone|27534|||||Yes|Formation, beds|Formal|Other new published name|Described|Clifton Subgroup|4163|||Middle Triassic||||deposition|Lower Triassic||||||167||No|31297|||||||Siltstone and claystone; minor sandstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||19-JUL-23
Paxton Formation|14958|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Guadalupian||||deposition|Guadalupian||||||||No|34015|||||||||||N||17-JAN-23
Peach Tree Chert Member|69900|||||Yes|Member, phase|Formal|Resvd name published|Defined|Abercrombie Formation|69898|||Darriwilian|||biozone|deposition|Darriwilian|||biozone|||20|NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Of the Adaminaby Group.|Varicoloured thin to medium-bedded chert interbedded with quartzose sandstone, siltstone and mudstone.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Peachvale Rhyolite|14964|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Hyandra Creek Group|8619|||Lochkovian||||eruption|Pridoli||||||600||No|32485|23170||||||Rhyolite breccia, rhyolite, minor spilite.|acid volcanic rock|||N||17-JAN-23
Peak Rhyolite|80106|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Chesney Formation|3959|||Lochkovian|418.1|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Ludlow|423.2|3.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70941||||||Cobar Basin.|Relatively unaltered, flow-banded, amygdaloidal rhyolite.|acid volcanic rock|||N||03-AUG-23
Peaks Formation|31703|Peaks Sandstone|27875|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hervey Group|25947|||Middle Devonian||||deposition|Middle Devonian||||||860||No|43782|23392|||||Bathurst 1997 1:250 000 sheet. Supersedes "Peaks Sandstone" and "Bogan Gate Sandstone".  Max. thickness: 860m.|Red shale, mudstone and siltstone; white to pink-red-brown arenite; conglomerate lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Peakview Tonalite|32399|Peakview Granite|14978|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22815|||||||Hornblende-biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Peats Ridge basalt|14980|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35758||||||||basic volcanic rock|||N||17-JAN-23
Pebbley Beach Formation|14998|||||Yes|Formation, beds|Formal|Other new published name|Defined|Shoalhaven Group|16844|||Artinskian||||deposition|Sakmarian|||||||NSW|No|32945|31081|||||Correlated lithostratigraphically with Yadboro Conglomerate.  See also the misspelt Pebbly Beach Formation.|Dominated by siltstone, with minor sandstone, conglomerate and coal; channelling and cross-bedding are evident. Weakly to intensely bioturbated.|siliciclastic sedimentary rock|||N||17-JAN-23
Pee Dee beds|36962|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Nambucca beds|29689|||Cisuralian||||deposition|Pennsylvanian||||||||No|23720|||||||Slaty siltstone, lithic sandstone, minor diamictite|siliciclastic sedimentary rock|||N||17-JAN-23
Peel Serpentinite|15007|||||Yes|Formation, beds|Formal|Unknown or process pending|Described||||||||||||||||||No|43400|||||||||||N||17-JAN-23
Peelwood Porphyry|15011|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||eruption|||||||||No|32999|||||||||||U||17-JAN-23
Peelwood Shale|15012|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37727||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Peera Peera Formation|24619|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Rhaetian||||deposition|Carnian||||||190|SA|No|36922|41063|M.J.Wiltshire|13-JAN-78|||May be misspelling of place name Peera Perra but defined as here.|Shale, siltstone, minor coal and sandstone at base, overlain by cyclical upward-fining sandstone, capped by highly carbonaceous shale with occasional thin sandstone beds.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Pejar Granite|35787|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Pragian||||intrusion|Pragian||||||||No|50234||Scott M.|23-MAR-01|||Goulburn 1:250 000 sheet area.  Part of the Wologorong Batholith.|Cream biotite leucogranite with plagioclase phenocrysts|acid intrusive rock|||Y||17-JAN-23
Pelton Coal Member|28916|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Paxton Formation|14958|||Permian||||deposition|Permian||||||||No|45090||||||Of Greta Coal Measures, Sydney Basin.|Coal (with numerous stone bands) and coaly shale, minor shale and siltstone|organic rich sedimentary rock|||N||17-JAN-23
Pendergast Tonalite|26099|Pendergast tonalite|15036|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian||||intrusion|Late Silurian|||||||NSW|No|33780|35109||||||Biotite tonalite|acid intrusive rock|||Y||17-JAN-23
Pendianna Tank Granite|73374|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Westella Suite|73375|Lower Devonian||||intrusion|Late Silurian||||||||No|70941||Burton, G.|24-MAY-07|||For use on Map Sheet 8136; nearest town is Byrock. Bourke 1:250 k sheet area. pub: Explan. Notes for SUSSEX and BYROCK 1:100K map sheet, GSNSW. See also mis-spelt Pendiana Tank Granite (RefID 70602).|Grey, quartz-K-feldspar-plagioclase-biotite granite with sparse biotite-rich enclaves.|acid intrusive rock|||Y|I-type|05-SEP-23
Pennyweight Monzogranite|77024|Pennyweight Adamellite|32242|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Free Damper Suite|31577|Lower Devonian|||inferred|intrusion|Pridoli|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. State list map symbol suggests this unit now (2012) regarded as Devonian. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|17-JAN-23
Penrith Sandstone Member|77583|||||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Loddon Sandstone|34000|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW) after  Hill M.|14-JUN-12|||Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Lithic sandstone, minor siltstone, claystone and rare conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Penryn Rhyolite Member|39262|Penryn|36745|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian|||inferred|eruption|Serpukhovian|||inferred|||50|NSW|Yes|50613|50613|J.Roberts|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Basal member of the Tulcumba package (informal grouping of stratigraphically recognisable distinctive, mappable units) overlying the Piney Range package.|Rhyolite ignimbrite and lava, felsic volcanic breccia, andesitic ignimbrite|acid volcanic rock|||N||17-JAN-23
Penshurst Sandstone Member|15041|||||Yes|Member, phase|Formal|Resvd name published|Defined|Boothumble Formation|2294|||Devonian||||deposition|Devonian||||||700|NSW|No|41394|41394|||||Lithology description from GSNSW seamless geology 2023.|Massive, laminated and cross-bedded fine- to coarse-grained quartzose to lithic-quartz sandstone. Lithic granule conglomerate. Minor polymictic, commonly matrix-supported pebble conglomerate, mostly at the base of the unit|siliciclastic sedimentary rock|||N||28-SEP-23
Pentamerus Limestone|15042|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|32585||||||||carbonate sedimentary rock|||N||17-JAN-23
Peppercorn Formation|15053|Peppercorn Beds|15051|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cooleman Plains Group|4528|||Ludlow||||deposition|Late Silurian||||||1000|NSW|No|36441|45147||||||Basal conglomerate, overlain by arenite, siltstone and cleaved shale, with minor limestone lenses|siliciclastic sedimentary rock|||N||17-JAN-23
Peri Rhyodacite Tuff Member|26840|Peri Rhyodacite Tuff|15065|||Yes|Member, phase|Formal|Unknown or process pending|Described|Clifden Formation|4147|||Pennsylvanian||||eruption|Pennsylvanian||||||10||No|30135||||||See also Peri Rhyolite Member. Updated from GSNSW seamless geology dataset 2021.|Beige to grey, unwelded to slightly welded ignimbrite with altered feldspar, embayed quartz, rare biotite and opaque minerals. Rare pumice. Groundmass with crescentic to flattened shards, bubble walls. Micropoikilitic. Chloritic and zeolitic alteration.|acid volcanic rock|||N||02-JUN-23
Pericoe Monzogranite|76989|Pericoe Adamellite|22642|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian|||inferred|intrusion|Late Silurian|||inferred|||||No|69801||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Pink, equigranular coarse-grained monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Pericoe Suite|32184|Perico Suite|31679|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian|||||Late Silurian||||||||No|43233||||||||acid intrusive rock|||Y||17-JAN-23
Permian basalt 78231|78231|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||eruption|Permian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Basalt, interbedded with sediment, mainly Pc|basic volcanic rock|sedimentary rock||N||17-JAN-23
Permian felsic volcanics 76686|76686|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Triassic|247|||eruption|Guadalupian|258|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset [Note: age name at odds with 2012 numerical age (Lopingian, Middle Triassic). Mistranslation from old timescale? CEB Feb-2012]|Mainly felsic volcanics, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Permian felsic volcanics 76687|76687|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian|273|||eruption|Cisuralian|298|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanics, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Permian granites 76688|76688|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lopingian|251||inferred|intrusion|Cisuralian|298||inferred|||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset, and the Basement Geology dataset 2019.|Mainly felsic intrusive rocks.  Range in composition from alkali feldspar granite to tonalite; includes associated rocks such as migmatite and minor gabbro and diorite.|acid intrusive rock|||Y||17-JAN-23
Permian mafic volcanics 76684|76684|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian|273|||eruption|Cisuralian|298|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly basaltic rocks; may include minor ultramafic volcanics|basic volcanic rock|||N||17-JAN-23
Permian sedimentary rocks 76690|76690|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian|273|||deposition|Cisuralian|298|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Permian sedimentary rocks 76692|76692|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian|273|||deposition|Pennsylvanian|306|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Permian sedimentary rocks 76694|76694|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lopingian|252|||deposition|Guadalupian|270|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Permian sedimentary rocks 76695|76695|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lopingian|252|||deposition|Cisuralian|273|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Permian serpentinites 76685|76685|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian|273||||Cisuralian|298|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Serpentinised ultramafic rocks; includes ophiolites|metamorphosed ultramafic rock|||N||17-JAN-23
Perricoota pluton|83406|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73505||||||Used in RefID 73496 Moore (2005). G659. Nonmagnetic but with magnetic contact aureole to 40 nT;  gravity low to 200 micrometres/second/second below the regional. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - perricoota Pluton.|Igneous intrusive rock. Interpreted S-type granite.|igneous intrusive rock|||Y|S-type|01-AUG-23
Petroi Metabasalt|25393|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Cisuralian||||eruption|Cisuralian|||||||NSW|No|40258|40258|||||Not related to obsolete name Petroi Leucoadamellite. Lithology updated from in GSNSW seamless geology dataset 2023 which gives age as just Permian. Used in GA Alkaline Rocks dataset. Previously considered a subunit of the Nambucca beds, but not in GSNSW seamless 2021 or 2023.|Altered basalt flows and breccias, vesicular pillow lava, metadolerite sills and intercalated metasandstone and slate, minor beds of paraconglomerate and granule conglomerate.|basic volcanic rock|||N||08-JUN-23
Peveril Peak Sandstone|33763|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Devonian||||deposition|Devonian||||||||No|||Neef G.|27-OCT-99|||Western New South Wales.||siliciclastic sedimentary rock|||N||17-JAN-23
Pheasant Creek Volcanics Member|82620|Pheasant Creek Volcanics|23901|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Coombadjha Formation|82391|||Lopingian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Predominantly ignimbrite with lesser breccia, crystal tuff and silicic lava-rock. Includes parts which are strongly foliated, lithic rich, brecciated or comprising microbreccia, silicic volcanic rock (emplaced as a lava), and volcanic breccia.|acid volcanic rock|||N|I-type|17-JAN-23
Pheasants Nest Formation|26100|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cumberland Subgroup|26507|||Late Permian||||deposition|Late Permian||||||75|NSW|No|34569|42896|||||At base of Illawarra Coal Measures.|Interbedded lithic sandstone, coal, claystone, siltstone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Phils Creek Formation|72762|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Ordovician||||deposition|Upper Ordovician||||||||No|61910|||||||Deep marine turbiditic sequence of fine-grained sediments and shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Phosphate Mine beds|34937|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|22952|||||||||||N||17-JAN-23
Pi Pi Ignimbrite|23902|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Coombadjha Volcanic Complex|23506|||Late Permian||||eruption|Cisuralian||||||||No|41041||J.McPhie|11-MAY-82||||Black, densely welded dacitic ignimbrite, with generally < 25% crystal fragments (predominantly plagioclase) with well-developed foliation of platy grey relict pumice fragments|acid volcanic rock|||N||17-JAN-23
Pi Pi Ignimbrite Member|82621|Pi Pi Ignimbrite|23902|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Coombadjha Formation|82391|||Lopingian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Black, densely welded dacitic ignimbrite, with generally < 25% crystal fragments (predominantly plagioclase) with well-developed foliation of platy grey relict pumice fragments.|acid volcanic rock|||N|I-type|17-JAN-23
Piallaway Trig Ignimbrite Member|15147|||||Yes|Member, phase|Formal|Resvd name published|Described|Currabubula Formation|5055|||Kasimovian|306|4.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Moscovian|306|4.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|41800||||||In the Werrie Block/Tamworth Belt. See misspelling Piallaway Trig Member, RefID 65902 for source of isotopic age (U/Pb SHRIMP using SL13 standard).|Relatively coarse-grained, crystal-rich, lithic, variably welded ignimbrite.|acid volcanic rock|||N||02-JUN-23
Piambong Formation|30646|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Chesleigh Group|30854|||Pridoli||||deposition|Ludlow||||||2000||No|22529|23170|Meakin S.|12-DEC-96|||Dubbo mapping project|Volcanic and quartzose arenite and siltstone, rhyolitic and felsic breccia, vitric tuff, latite, quartz latite.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Piercefield Coal Member|15178|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Piercefield seams|27879|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Pigeon House Creek Siltstone|15182|||||Yes|Formation, beds|Formal|Other new published name|Defined|Talaterang Group|28268|||Cisuralian||||deposition|Cisuralian||||||45||No|43981|43981|||||Previously included in the Talaterang Group [?]. And again in 1997, 2004, having been part of the Shoalhaven Group in the 1960s.|Fine-grained sandstone and carbonaceous siltstone.|siliciclastic sedimentary rock|||N||03-SEP-23
Pigeon Square Gabbro|23904|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Silurian||||intrusion|Late Silurian|||||||NSW|Yes|40328||D.Wyborn|22-JUN-72|Bryan, J.H.|27-OCT-75|NLR ?1984 but publ 1982 [indexed 1986]. Name may be obsolete?|Two pyroxene bearing leucogabbro, hornblende gabbro, dolerite, olivine gabbro, gabbro pegmatite.|basic intrusive rock|||Y||17-JAN-23
Pigna Barney Ophiolitic Complex|29629|Pigna Barney Igneous Complex|15183|||Yes|Group, Suite|Formal|Variation of published name|Briefly described||||||||||||||||||No|42997|||||||||||N||17-JAN-23
Pikedale beds|15185|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Cisuralian||||deposition|Cisuralian|289.7|9.9|isotopic, U/Pb-Pb/Pb ICP-MS|||||No|42559||||||Silver Spur Subprovince, Woolomin Province (Geology of Queensland 2013).|Lithic (locally pebbly) arenite, conglomerate, and mudstone; rare acid vitric tuff.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Pikes Gully Coal Member|77626|Pikes Gully Seam|26842|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Foybrook Formation|26561|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|12-JUN-12|||Sydney Basin.|Coal: dull and bright bands; siltstone beds with coaly laminations, thin tuff bands, fine- to medium-grained light to mid-grey sandstone|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Piles Creek Sandstone|15197|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43358||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Pillar Valley Formation|15202|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Jurassic||||deposition|Lower Jurassic||||||||No|41631|||||||||||N||17-JAN-23
Pilleuil Andesite|27536|||||Yes|Formation, beds|Formal|Other new published name|Defined|Black Range Group|1812|||Lochkovian|||inferred|eruption|Lochkovian|420.2|3.1|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|||NSW|No|32675||||||A SHRIMP U-Pb zircon age of 419.7 +/- 3.1 Ma (Black, 2005) is considered too old and to include a component of inherited zircon (Goulburn Explan. Notes, 2012). Biostratigraphy from  top of underlying Hattons Corner Group indicate early Lochkovian age and overlying Cavan Bluff Limestone of Murrumbidgee Group is Pragian. [Note: the revised International Chronostratigraphic Chart (2012 onwards), removes the apparent conflict between biostratigraphy and radiometric dating seen in this part of earlier versions of the Timescale.] See also misspleeling Pilleul Andesite.|Blue-grey, fine-grained, massive feldspar- and pyroxene-phyric andesite; rare thin lenses of fine-grained, massive, volcaniclastic sandstone.|intermediate volcanic rock|||N||17-JAN-23
Pilleuil Andesite, Waynes Knob Rhyolite, Sharpeningstone Conglomerate|41967|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Black Range Group|1812|||Pragian||||deposition|Lochkovian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Andesite lava and tuff; rhyolite; polymictic pebble to cobble conglomerate, pebbly sandstone and mudstone|intermediate volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Pilliga Sandstone|15212|Pilliga Series""|15213|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Injune Creek Group|8710|||Upper Jurassic|||inferred, biostratigraphic correlation|deposition|Upper Jurassic|||inferred, biostratigraphic correlation|||300|NSW|No|43394|23170|||||See also previous definitions. Surat Basin; Coonamble Embayment. Aquifer: generally artesian.|Medium to very coarse grained, well sorted, angular to subangular quartzose sandstone and conglomerate. Minor interbeds of mudstone, siltstone and fine grained sandstone and coal. Common carbonaceous fragments and iron staining. Rare lithic fragments.|medium-coarse grained siliciclastic rock|||N||25-SEP-23
Pilliga Sandstone, Springbok Sandstone|84121|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Injune Creek Group|8710|||Upper Jurassic|||||Upper Jurassic||||||||No|||||||Merged unit for the 1:1M solid geology mapping in the NSW-QLD border area. Aquifer: generally artesian.|Med-v. coarse grained, quartzose sandstone and conglomerate. Minor interbeds of mudstone, siltstone, fine grained sandstone, coal. Clayey lithic sublabile to very lithic sandstone; calcareous in part; interbedded with carbonaceous mudstone and siltstone.||||N||
Pilot Coal, Lower|82557|Lower Pilot Coal|10797|||Yes|Formation, beds|Invalid|Variation of published name|Briefly described|Boolaroo Subgroup|2220|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Two or more coal splits, separated by beds of sandstone, siltstone, claystone and tuffaceous claystone.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||14-AUG-23
Pilot Coal, Upper|82556|Upper Pilot Coal|18946|||Yes|Formation, beds|Invalid|Variation of published name|Briefly described|Boolaroo Subgroup|2220|||Lopingian|||inferred||Lopingian|253.55|.06|isotopic, U/Pb-Pb/Pb, TIMS|maximum depositional age||||No|||||||Used in GSNSW seamless geology dataset 2021.|Coal and tuff bands, often split by shale and sandstone; formation is commonly a grouping of lenticular coal horizons.|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Pilot Range Granite|15220|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|70910||||||Beechworth area, Victoria.|Granite|acid intrusive rock|||Y||17-JAN-23
Pimbilla Tank Group|73404|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Floian|||biozone|deposition|Late Cambrian|||inferred||||NSW|No|66917|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used in the Koonenberry 1:500 000 map sheet area.|Metasedimentary rocks, dominantly mudstone with minor sandstone, fossiliferous limestone, quartzite and basal pebbly conglomerate.|metasedimentary siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Pimpara Member|73420|Pimpira Member|34692|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Wydjah Formation|34693|||Miaolingian||||deposition|Miaolingian||||||||No|66917||Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. ?Correction of spelling of published name: Pimpara Tank. See also Pimpira Member. Updated from GSNSW seamless geology dataset 2021. Age given as Templetonian (equivalent to Wuliuan in 2020 time scale).|Boldly outcropping impure dolostone interbedded with recessive blue-grey shale and siltstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Pincally Formation|40891|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Gnalta Group|7460|||Middle Cambrian||||deposition|Middle Cambrian||||||300||No|22857|||||||Blue grey shale, siltstone, tuffaceous lithic sandstone and minor limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Pincham Syenite|81957|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Sub-equigranular quartz syenite. Areas of magmatic quartz-hematite-apatite and resorbed primary syenite.|intermediate intrusive rock|||N||17-JAN-23
Pine Cliffs Rhyolite Member|37909|Pine Cliffs Rhyodacite|30057|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Clifden Formation|4147|||Carboniferous||||eruption|Carboniferous|||||25||NSW|Yes|24605||Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|||acid volcanic rock|||N||17-JAN-23
Pine Mountain Granite|15244|Pine Mountain granite|15248|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian|404|12||intrusion|Late Silurian|413|12||||||No|29953||||||Tallangatta 1:250 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G99. Intrudes the Corryong Granite. Previously the only unit in the Pine Mountain Suite.|Nonmagnetic, pale to deep pink, medium to coarse grained, leucogranite; A-type; minor fine grained granite pods.|acid intrusive rock|||Y|A-type|17-JAN-23
Pinegrove Formation|15255|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Boolaroo Subgroup|2220|||Lopingian||||deposition|Lopingian||||||||No|29942||||||Previously of Doyles Creek Subgroup, now Boolaroo Subgroup. Updated from GSNSW seamless geology dataset 2021.|A sequence of shale and sandstone with minor tuffaceous claystone. Contains a vestigial coal member comprising inferior coal plies and bands.|siliciclastic sedimentary rock|||N||17-JAN-23
Pinehurst Granite|27054|||||Yes|Formation, beds|Informal|Resvd name published|Described|Narraburra Complex|69150|Narraburra Suite|31617|Tournaisian|358|9|isotopic, Rb/Sr|intrusion|Famennian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area.  Age and parentage deduced from Wormald et al, 2004, AJES, 51, p372.|Arfvedsonite-aegirine granite|acid intrusive rock|||Y||17-JAN-23
Piney Range Member|40758|||||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian||||deposition|Serpukhovian||||||400|NSW|Yes|50613|50613|Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|Volcanic member of the Piney Range package (informal grouping of stratigraphically recognisable mappable units). Of the New England Orogen.|Purple to grey, unwelded to welded ignimbrite, with scattered phenocrysts of plagioclase, minor K-feldspar, quartz, biotite and opaques. Groundmass is micropoikilitic or spherulitic, including rare pumice and orientated thick shards.|acid volcanic rock|||N||17-JAN-23
Pingbilly Formation|15258|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Pimbilla Tank Group|73404|||Floian||||deposition|Floian||||||||No|35118||||||West of Mount Arrowsmith this unit is faulted against Cambrian formations and western Kara beds.|Poorly outcropping, cleaved, blue-grey, green and brown micaceous mudstone and shale; fossiliferous.|fine grained siliciclastic rock|||N||17-JAN-23
Pinnacles Lens|23906|||||Yes|Formation, beds|Formal|Resvd name published|Described||||||||||||||||||No|42786||Nott J.|30-AUG-90||||||||N||17-JAN-23
Pinnak Sandstone|23907|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Adaminaby Group|98|||Darriwilian|||inferred, overlying unit|deposition|Tremadocian||||||2200||No|40136||VandenBerg, A.H.M.|23-APR-80|||Previously  Adaminaby Beds, Hotham slates and Mallacoota Beds in East Gippsland (VIC). Where it extends north of MURRINDAL and BENDOC into NSW the unit is still Adaminaby Group, and not differentiated as a separate unit. Deposited as an extensive submarine fan, dominated by sandstones. Expanded [2011] to include Broadbent River Sandstone. Proposed to be incorporated into, and superseded by the Abercrombie Formation in 2018, but Pinnak Sandstone still used in GSNSW seamless geology in 2021.|Quartz sandstone; turbiditic; mudstone interbeds and rare black siliceous shale. Thinly bedded chert horizons. Nonmagnetic except where altered; moderate, although variable, total count, K, Th, U.|siliciclastic sedimentary rock|||N||01-AUG-23
Pintapah Subgroup|15278|Pintapah Sub-Group|26844|||Yes|Subgroup|Formal|Unknown or process pending|Described|Poolamacca Group|15430|||Neoproterozoic|||||Cryogenian||||||||No|36733|||||||Fluviatile to shallow marine, mature sandstone and lesser conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Piora Member|82622|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Grafton Formation|7661|||Lower Cretaceous|||inferred||Middle Jurassic|||inferred|||||No|70820||||||Used in GSNSW seamless geology dataset 2021.|Medium- to coarse-grained quartzose sandstone with a strongly developed clay matrix. Contains minor amounts of carbonaceous material, coal clasts, mudstone bands, and garnet-rich sandy beds.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||20-AUG-23
Pipe Formation|26845|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nangar Subgroup|13778|||Upper Devonian||||deposition|Upper Devonian||||||480|NSW|No|43510|43507|||||Defined Connolly 1965 - J Roy Soc NSW 98. Of Hervey Group. Parent: Nangar Subgroup. GSNSW's position is that this is valid for the Narromine 250K map sheet area (and is also used on the Bathurst 250 map sheet area). The correlative used in the Forbes 250K map sheet area is the Mount Cole Formation.|Red, green and buff shale; minor finely bedded white to red arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Pipeclay Creek Formation|15285|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Late Cambrian||||deposition|Middle Cambrian||||||1000||No|43400|43400||||||Cherty siltstone, lenses of granule conglomerate|siliciclastic sedimentary rock||island arc|N||17-JAN-23
Pipeclay Creek Formation, Murrawong Creek Formation|69445|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Iverian||||deposition|Boomerangian||||||||No|||Ollie Raymond|11-JUL-05|||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project|Thinly banded black and white argillite and chert, volcanolithic wackes, fine to coarse bedded sandstone, limestone conglomerate|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Pipers Flat Formation|29938|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Llandovery||||deposition|Llandovery||||||375||No|22486|23214|Watkins J.J.|04-DEC-95|||For use in Bathurst 1:250 000 sheet area.|Consists of steeply west dipping sequence of medium bedded volcaniclastic sandstone with interbeds of thinly bedded graptolite shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Pitarpunga pluton|83404|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73496||||||Used in RefID 73496 Moore (2005). G318. Nonmagnetic but with magentic contact aureole;  gravity low to 80 micrometres/second/second below the regional. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - pitarpunga pluton|Igneous intrusive rock.Interpreted S-type granite.|igneous intrusive rock|||Y|S-type|02-AUG-23
Pitch Creek Volcanics|34004|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Tamworth Group|17757|||Lower Devonian||||eruption|Late Silurian||||||||No|69601||||||Gamilaroi terrane|Keratophyric andesite, dacite, rhyodacite and haematitic breccia|intermediate volcanic rock|acid volcanic rock||N||17-JAN-23
Pitt Town Sand|27221|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pleistocene||||deposition|Pleistocene|||||1|8|NSW|Yes|35098|42925|Gobert V.||Hawke, J.|27-AUG-77||||||N||17-JAN-23
Pittman Formation|15299|||||Yes|Formation, beds|Formal|Other new published name|Defined|Adaminaby Group|98|||Katian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation|||2650|ACT|Yes|43385|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|BMR Bulletin 233. Known as Foxlow beds on MICHELAGO (Refid 24128). Graptolite faunas of two different ages occur in the Pittman Formation - one of probable late Darriwilian age and the other (about 30m below the overlying Acton Shale) with Gisbornian affinities (Opik 1958). The Acton Shale Member  includes graptolites of Gisbornian to Bolindian age. Name proposed to be dropped in 2018 and rocks included in the Abercrombie Formation, except the Acton Shale Member, which was proposed to be included in the Warbisco Shale of the Bendoc Group. These proposed changes are not reflected in the GSNSW seamless geology 2021 which continues to use Pittman Formation and Acton Shale Member, although not including them in the Adaminaby Group.|Quartz-rich arenite, shale, siltstone, minor black shale, chert, impure calcareous arenite; turbidite|siliciclastic sedimentary rock|||N||17-JAN-23
Plagyan Ignimbrite Member|37911|Plagyan Ignimbrite|37306|||Yes|Member, phase|Formal|Resvd name published|Defined|Rocky Creek Conglomerate|16236|||Namurian||||eruption|Namurian||||||300|NSW|Yes|24605|24605|Roberts, J.|22-JAN-03|Sutherland, F.L.|22-JAN-03|Part of the Kaputar package of the Willuri Formation. In the Rocky Creek Syncline. Note that RefID24605 proposes a dramatically increased maximum thickness.|Coarse grey or purple rhyolitic ignimbrite and interbedded grey hornblende-rich dacitic to andesitic ignimbrite|acid volcanic rock||forearc|N||17-JAN-23
Pleasant Hill Granite|75932|Mount Pleasant Granite|13037|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Arthursleigh Suite|31547|Pragian||||intrusion|Lower Devonian|412.6|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|66300||Trigg, S.J., Campbell, L.M. (GSNSW)|11-MAY-11|||Replaces invalid Mount Pleasant Granite.  To be published: TRIGG S. J. and CAMPBELL L. M. 2010. Moss Vale 1:100 000 Sheet Explanatory Notes. Geological Survey of NSW. In preparation.|Coarse- to very coarse-grained holocrystalline equigranular granite to granodiorite, containing quartz, plagioclase, K-feldspar, biotite and hornblende.|acid intrusive rock|||Y||17-JAN-23
Plug Tank Formation|15332|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|42144|||||||||||N||17-JAN-23
Plum Pudding Serpentinite|75738|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Brown, R. (GSNSW)|31-AUG-10|||Northerly trending belt of schistose serpentinite, serpentinite melange and minor metagabbro and metadolerite developed as a splay off the Great Serpentinite Belt for a length of more than 20 km and a width up to 6.5 km. To be published in the Manilla 1:100,000 geological notes, now in final stages of preparation for publication.|||||N||17-JAN-23
Plumbago Creek beds|68215|Plumbago Creek Mudstone|29635|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Cisuralian|||||Cisuralian||||||||No|44093||||||See also Plumbago Creek Beds, replaced by Plumbago Creek Mudstone.  This name possibly replaces both these names?|||||N||17-JAN-23
Pocket Formation|15351|Pocket Beds|28930|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cooleman Plains Group|4528|||Ludlow||||deposition|Late Silurian||||||1000|NSW|No|36443|45147||||||Lithic sandstone, siltstone and mudstone, limestone lenses.|siliciclastic sedimentary rock|||N||06-SEP-23
Poidevins Sandstone|37356|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Margules Group|69897|||Llandovery|||inferred|deposition|Katian|||inferred|deposition||||No|50234||Scott, M.|19-FEB-02|||GOULBURN 1:100 000, Kingsdale 1:25 000 sheet areas.|Medium-very thickly bedded, fine-very coarse grained, quartzose to feldspar lithic quartz sandstone interbedded with siltstone and mudstone; graded bedding and ripple cross-lamination are common; bimodal sorting in places.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Pokolbin Hills Volcanics|26106|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Carboniferous||||eruption|Carboniferous|||||||NSW|No|29915|29915||||||Ignimbrite, tuff, trachyandesite, trachyte, andesite, pitchstone, agglomerate and some sedimentary rocks.|acid volcanic rock|||N||02-JUN-23
Pokolbin Limestone|15389|Pokolbin limestone|15390|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Permian||||deposition|Permian||||||||No|39307||||||Invalid name.||carbonate sedimentary rock|||N||17-JAN-23
Pola Fogal Complex|78174|Pola Fogal Hornblendite-Tonalite Suite|79982|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Silurian|436|9|isotopic, U/Pb-Pb/Pb ion probe||Upper Ordovician||||||||No|68822||||||Age derived from tonalite in the complex with reported minimum age of 436 Ma (Kimbrough et al. 1993). This was reported as unpublished U-Pb SHRIMP data (436 +/- 9 Ma) of Kimbrough et al, 1993,  on the Pola Fogal Suite in Aitchison & Flood (1994) (RefID 50168). See also Pola Fogal Suite.|||||Y||17-JAN-23
Pollocks Creek Monzonite|77634|Pollocks Creek Monzonite""|15413|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Central Lachlan Orogen. Used in GSNSW seamless geology dataset 2021.|Monzonite and diorite intrusions|intermediate intrusive rock|||Y||17-JAN-23
Pollwombra Granodiorite|15418|Pollwombra Adamellite|15417|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||Moruya Suite|12371|Lower Devonian||||intrusion|Lower Devonian||||||||No|35248||||||Mentioned.  See also the informal Pollwombra Granite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Ponto Group|35621|Ponto beds|15426|||Yes|Group, Suite|Formal|Resvd name published|Redefined|||||Middle Cambrian|496.3|3.1|inferred, intrusive relationship|deposition|Middle Cambrian|512|3.1|isotopic, U/Pb-Pb/Pb ion probe|deposition|||NSW|No|64671|66623|Buckley P.M.|15-NOV-00|||Koonenberry Belt. Koonenberry 1:250 000 sheet area. Age Middle Cambrian? to Ordovician? Tentatively subdivided into Barroorangee Creek, Palgamurtie and Noonthorangee Subgroups on the Koonenberry Pre-Permian  Interpretation Map (2000); the subdivisions "into subgroups, formations, beds and members are tentative, depending on the degree of confidence" (stated in map legend). See also Ponto Complex.|Thick phyllite units interbedded with fine-gr. turbiditic quartzofeldspathic arenites. Massive to well-cleaved tholeiitic metabasalts (trachyandesites) +lam'd siliceous tuffs; strongly deformed phyllite; unfossiliferous.|metasedimentary siliciclastic rock|metamorphosed basic igneous rock||N||17-JAN-23
Poolamacca Group|15430|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Cryogenian||||deposition|Cryogenian||||||||No|30261||||||New South Wales equivalent of Poolamacca Group of South Australia.|Basal quartzite and conglomerate, carbonate and basalt.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Pooncarie Ironstone|22680|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Pleistocene|||||Pliocene||||||1||No|44188||Cameron R.|15-FEB-95|||Pooncarie 1:250 000 geol. sheet. To be published 1996.|||||N||17-JAN-23
Pooraka Formation|15448|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Pleistocene||||deposition|Upper Pleistocene||||||450|SA|No|44660|42966|||||Occurs around basin margins. Variously referred to as Pooraka Formation I, P.F. II and P.F. III, as well as various versions of Pooraka Formation gravels - see Pooraka Formation gravels for variations. Piedmont slope distal deposit. Remnants on dissected surfaces and plateaus. Also called Hookina Creek Formation by Williams (1982).|Unconsolidated red-brown poorly-sorted clayey sand, gravel, conglomerate, breccia; as colluvial sheet wash, alluvial fan and residual lag; forms extensive, coalesced, low-angle fans, high-angle talus cones and scree slopes|regolith|||N||17-JAN-23
Porcupine Formation|15452|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Millie Group|30036|||Late Permian||||deposition|Late Permian||||||186|NSW|Yes|43385|43194|Hanlon F.N.1949, Lowe S.P.1971||||Parent added from Geol Surv NSW Mem Geol 12, (1993). Defn from Lowe's 1971 UNE BSc(Hons) thesis? See also Lexicon. Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|Basal conglomerate passing upward into bioturbated silty sandstone and minor siltstone with dropped pebbles.|siliciclastic sedimentary rock|||N||03-SEP-23
Port Macquarie Serpentinite|73111|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Cambrian|530||||Early Cambrian|530||||||NSW|Yes|63763||Och, D. and Leitch, E.C. (GSNSW)|19-APR-07|||For use on map sheet 9435-2S; nearest town is Port Macquarie. To be pub. in 2007 series Quarterly Notes/GSNSW. Age is probably Early Cambrian,  ~530Ma (see RefID: 637863).|Comprises serpentinite melange with a matrix of schistose serpentinite, native phacoids of massive serpentinite, phacoids of highly altered mafic rock (rodingite).............cont'd......|metamorphosed basic igneous rock|||N||17-JAN-23
Porters Mount Quartz Diorite|33742|Porters Mount Tonalite|33417|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Lower Devonian|399.7|2.6||||||No|24417||Raymond, O.L.|27-APR-99|||Forbes 1:250 000 sheet area. Used in GSNSW seamless geology dataset 2021.|Quartz diorite, tonalite, diorite.||||Y||21-JUL-23
Postmans Creek Granodiorite|15493|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Triassic||||intrusion|Late Permian|||||||NSW|No|33766|33476|||||Has been identified as a fragment of the Dundee Rhyodacite (Blevin, pers. comm., 2014), reported in Bryant (2017), Waltenberg et al. (2019), so this unit may be obsolete? GSNSW still lists this unit in 2023 seamless, as Permo-Triassic.|Medium to coarse-grained, blue-grey rock, containing plagioclase, K-feldspar, hornblende, biotite, quartz, chlorite and disseminated pyrite. Parts are slightly porphyritic with euhedral plagioclase in a medium-grained groundmass. Hornblende is poikolitic|acid intrusive rock|||Y|I-type|27-AUG-23
Pot Hole Monzogranite|76964|Pot Hole Adamellite|15494|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ingebyrah Suite|8689|Silurian|||inferred|intrusion|Silurian|||inferred|||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021|Grey, coarse-grained biotite monzogranite, prominent deformation fabrics present|acid intrusive rock|||Y|S-type|17-JAN-23
Potosi Gneiss|15497|Potosi gneiss|15501|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Potosi Suite|33126|Paleoproterozoic|||||Paleoproterozoic|1690|5|isotopic, U/Pb|||||No|45003||||||See also Lexicon. Part of the Potosi Supersuite.|||||N||17-JAN-23
Potts Hill Sandstone Member|15512|Potts Hill Sandstone|15514|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Bringelly Shale|2570|||Triassic||||deposition|Triassic||||||||No|35690||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Pound Rock Rhyodacite Member|37915|Pound Rock Rhyodacite|30053|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Rocky Creek Conglomerate|16236|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03||||||N||17-JAN-23
Powder Horn Hill Microgranite|22689|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Lower Devonian||||intrusion|Silurian||||||||No|22638|22638|Warren A., Gilligan L., Raphael N.|23-NOV-93|||Cootamundra 1:250 000 sheet. Possibly the fine-grained equivalent of Gudibindyal Granite.|Microgranite|acid intrusive rock|||Y||17-JAN-23
Prairie Sand|25414|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|30289|||||||||||N||17-JAN-23
Precipice Sandstone|15540|Hospital Hill Sandstone""|8518|||Yes|Formation, beds|Formal|Other new published name|Defined|Bundamba Group|2963|||Toarcian|||inferred, biostratigraphic correlation|deposition|Sinemurian|||inferred, biostratigraphic correlation||45|100|QLD|No|44095|45110|||||On the MUNDUBERRA sheet. Maximum age extended back from Early Jurassic to Late Triassic since 2001, although GSQ 2012 map does not agree. Hydrocarbon reservoir. Eromanga, Surat Basins. A deep, high-quality aquifer in the Great Artesian Basin. Traditionally interpreted as a braided fluvial deposit; however some evidence of tidal to marine influence (RefID 71806, Bianchi et al., 2018).|Thick-bedded, cross-bedded, pebbly quartzose sandstone, minor lithic sublabile sandstone, siltstone, mudstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock|intracratonic|N||17-JAN-23
Precipice Sandstone, Lower|80636|Precipice Sandstone|15540|||Yes|Member, phase|Informal|Variation of published name|Described|Precipice Sandstone|15540||||||||||||||||No|71805||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Precipice Sandstone, Upper|80637|Precipice Sandstone|15540|||Yes|Member, phase|Informal|Variation of published name|Described|Precipice Sandstone|15540||||||||||||||||No|71805||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Preston Formation|41571|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Rast Group|23935|||Lower Devonian||||deposition|Late Silurian||||||||No|60303||||||Within the Rast Trough (Lachlan Fold Belt). Muddy marine basinal sequnce was originally mapped as Ural Volcanics using nomenclature such as "Boothumble beds", "Preston beds" and "Yelkin beds".  Hosts the large Browns Reef polymetallic deposit. Max.thickness: >1500m.|Volcaniclastic and fossiliferous sandstone. Interbedded mudstone,quartz sandstone, lithic sandstone with rare conglomerate lenses and rhyolite sills.|siliciclastic sedimentary rock|acid volcanic rock||N||05-SEP-23
Pretty Point Tonalite|22697|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Why Worry Suite|31661|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Chappell B.W., Lewis P.|28-NOV-75|||Card. BD as Pretty Point Granite in Chappell et al (1991), but formal name not intended.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Pretty View Tuff Member|15569|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Majuba Volcanics|27473|||Lochkovian||||eruption|Lochkovian||||||||No|35287||||||Used in GSNSW seamless geology dataset 2021.|Rhyolitic vitric tuff.||||N||21-JUL-23
Primley Monzogranite|82601|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Uralla Supersuite|67894|Middle Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in 2017. Named after the Primley homestead. ?Misspelt Pimley Monzogranite in GSNSW seamless geology dataset 2021, 2023. and shown as Middle Triassic. No geochron, but other units in the Suite have Permian ages..|Medium-grained, porphyritic, hornblende-biotite monzogranite.|acid intrusive rock|||Y|I-type|19-OCT-23
Pringles Monzogranite|41071|Pringles Adamellite|15603|||Yes|Formation, beds|Formal|Variation of published name|Described|||Banalasta Suite|67897|Artinskian||||magmatic crystallisation|Sakmarian|288.7|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Within the Bundarra Supersuite. Features minor scattered Sn-W mineralisation.|Equigranular to porphyritic biotite-muscovite- cordierite granite|acid intrusive rock|||Y||30-AUG-23
Prison Farm Granodiorite|26857|Prison Farm granodiorite|15608|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mannus Creek Suite|31616|Lower Devonian||||intrusion|Lower Devonian||||||||No|45087||||||Chappell et al., in an AMIRA Report in 1999, combined this unit along with the Bogandyera Granite and the Munderoo Granodiorite into the Bogandyera Granite, and renamed the  (parent) Mannus Creek Suite as the Bogandyera Suite, but these changes were not reflected in publicly available documents, and have apparently not been supported by GSNSW work, given that they retained all 3 units as part of the Mannus Creek Suite in 2013.|I-type, felsic, unfractionated granite|acid intrusive rock|||Y|I-type|17-JAN-23
Prospect Picrite|26112|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Jurassic|||||Lower Jurassic||||||130|NSW|No|42925|42925|||||Replaces Prospect Dolerite and Prospect Hill Dolerite.|Picrite, dolerite and minor basalt.|basic intrusive rock|||N||05-JUN-23
Prudoe Shale|15634|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|30286||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Puddledock Complex|15642|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Woodlands Suite|73977|Late Permian||||intrusion|Late Permian||||||||No|31806||||||Within the Moonbi Supersuite.|Pyroxene syenite and pyroxene alkali granite.|intermediate intrusive rock|||N|I-type|17-JAN-23
Pullabooka Formation|31422|Pullabooka Beds|15652|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Trundle Group|29079|||Lower Devonian||||deposition|Lower Devonian||||||||No|50299||Lachlan Project (O.Raymond)|24-JUL-97|||To be used in the Marsden 1:100 000 sheet area. Formalises Pullabooka Beds.|Massive to poorly bedded quartz sandstone and quartzite, minor siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Purgatory Creek Limestone|28944|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34220||||||||carbonate sedimentary rock|||N||17-JAN-23
Purgatory Creek adamellite|15673|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|34220||||||||acid intrusive rock|||Y||17-JAN-23
Purgatory Monzogranite|82628|Purgatory Creek adamellite|15673|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Triassic|||inferred||Permian|||inferred|||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021.|Medium- to coarse-grained, equigranular, biotite-leucogranite, microgranite, and aplite; heavily weathered.|acid intrusive rock|||Y||17-JAN-23
Purlawaugh Formation|15676|Purlawaugh Beds|27884|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Bathonian||||deposition|Pliensbachian||||||100|NSW|No|34157|30610|||||Supersedes the Ukebung Formation of Loughan and Evans (1978) - and Digilah Formation? This formation divided into the lower Ukebung Formation and upper Digilah Formation by Loughan and Evans (1978). Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020]|Fine to medium grained lithic to labile sandstone thinly interbedded with siltstone, mudstone and thin coal seams. Abundant carbonaceous fragments, thin beds of flint clay.|siliciclastic sedimentary rock|||N||25-SEP-23
Purnamoota Road Gneiss|68901|Purnamoota gneiss|83163|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Calymmian|1574||||Calymmian|1597|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|6823||||||Variation on Purnamoota Road Leucocratic gneiss, an informal name for some of the granites in the NSW portion of the Curnamona Province considered to be part of the Ninnerie Supersuite [see Wade, 2011, RefID 67540]. These rocks previously included in Hores Gneiss, Potosi Gneiss, but ages distinct.|Quartzofeldspathic-biotite-garnet leucocratic gneiss.|metamorphosed acid igneous rock|||Y||17-JAN-23
Purnamoota Subgroup|15683|Purnamoota Sub-Group|27543|||Yes|Subgroup|Formal|Other new published name|Defined|Broken Hill Group|2617|||Statherian|1685|5|isotopic, U/Pb||Statherian|1685|5|isotopic, U/Pb|||1000|NSW|No|38969|39662|||||Olary / Broken Hill Province. Comprises two "Potosi-type" gneiss units enclosing the Freyers Metasediments between Parnell Gneiss below and Hores Gneiss above.  Within the Willyama Supergroup. Adjacent to Wondervale Well Granite Gneiss, which intruded at or just above the base of Broken Hill Group.|Consists of two horizons of garnet-bearing quartzofeldspathic Potosi-type gneiss, separated by pelitic rocks. Minor calc-silicate, garnet-rich BIF, quartz-gahnite and quartz-garnet rock. Basic gneiss sills generally present and locally abundant.|metamorphosed acid igneous rock|||N||17-JAN-23
Purnim Volcanic Member|22707|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Trundle Group|29079|||Lower Devonian||||eruption|Lower Devonian||||||300||No|43441||Sherwin L.|13-AUG-93|||Narromine 1:250 000 sheet. Used in GSNSW seamless geology dataset 2021.|Pink to grey, altered porphyritic andesite, sub-trachytic groundmass.||||N||21-JUL-23
Purnoo Conglomerate Member|29552|||||Yes|Member, phase|Formal|Other new published name|Described|Nowra Sandstone|14320|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, overlying unit|deposition||||No|42972||||||Shoalhaven Group. Fisher (1972).|Very poorly sorted, predominantly matrix-supported pebble to cobble conglomerate. Clasts subangular to mostly well rounded, comprising mainly quartzite with lesser white quartz, black chert, sandstone and igneous lithologies.|sedimentary rock|||N||17-JAN-23
Puxtrees Coal Member|26861|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|37773||||||Of Greta Coal Measures, Sydney Basin. Occurs as two splits: the 'Thiess Split' and the 'Puxtrees Split'|Coal and carbonaceous shale|organic rich sedimentary rock|||N||17-JAN-23
Pyangle Pass Granite|30047|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Namurian||||intrusion|Mississippian||||||||No|43188|23170||||||Biotite granite, aplite, pegmatite|acid intrusive rock|||Y||17-JAN-23
Pyes Creek Leucomonzogranite|38277|Pyes Creek Adamellite|15699|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bolivia Range Suite|73987|Lower Triassic||||intrusion|Late Permian|253.1|1.4||||||No|23811||||||Probably also supersedes Pyes Creek Leucoadamellite. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Most probably part of Uralla Supersuite - Blevin, Champion & Bultitude, pers.comm, Nov 2007. GSNSW seamless geology dataset 2021 places this unit in the Bolivia Range Suite, Stanthorpe Supersuite.|Coarse grained, equigranular leucogranite without xenoliths.|acid intrusive rock|||Y|I-type|17-AUG-23
Pyramid Hill Arenite|30904|||||Yes|Member, phase|Informal|Variation of published name|Defined|Tangaratta Formation|17776|||Tournaisian||||deposition|Tournaisian|||||||NSW|No|43399|43399|||||Name last used 1968. Shown as informal Pyramid Hill arenite (of Tangaratta Formation) in GSNSW State list 2013.|Lenses of labile sandstones and lithic wackes with minor conglomerate interbedded with Goonoo Goonoo Mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Pyramid Hill Arenite Member|30897|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Tangaratta Formation|17776|||Tournaisian|||inferred|deposition|Tournaisian|||inferred|||||No|43400||||||Used in GSNSW seamless geology dataset 2021.|Interbedded lenses of labile sandstone and litharenite with minor conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Quaama Granodiorite|33671|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Cobargo Suite|31492|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||B.W.Chappell|27-OCT-75|||See also the informal Quaama Granite.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Quarantine Bay Member|28252|Quarantine Bay Conglomerate Member|15726|||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Middle Devonian||||deposition|Middle Devonian||||||||No|33268||||||See also "Quarantine Bay Member".|Sedolithic breccia-conglomerate-sandstone facies.||||N||17-JAN-23
Quarry Creek Limestone|15730|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Waugoola Group|19623|||Wenlock||||deposition|Llandovery||||||6||No|43517||||||West of Mount Canobolas. Overlying Panuara Formation contains graptolites originally assigned to the late Llandovery but now believed to be lower Wenlock (RefID 5253 1995)|Well-bedded very fossiliferous limestone; basal pebbly lithic sandstone; contains corals, stromatoporoids.|metasedimentary carbonate rock|siliciclastic sedimentary rock||N||17-JAN-23
Quartz Pot Creek Monzogranite|82631|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Sailor Jack Supersuite|82412|Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarsely porphyritic, hornblende-biotite monzogranite to granodiorite. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Queen Bee Porphyry|15747|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lochkovian||||eruption|Pridoli|417.6|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|45003||||||Cobar district.|||||U||03-AUG-23
Queens Pinch Group|30152|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Emsian||||deposition|Lochkovian||||||1700||No|44093|23170|Colquhoun G.|12-MAR-96|||Mudgee 1:100 000 sheet.|Lithic, volcanic and minor quartz sandstone; mudstone, pebbly mudstone, basaltic and polymictic conglomerate; allodapic and allochthonous limestone and limestone breccia; dacite and andesite lava|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Quialigo Volcanics|69864|Quialigo Formation|36337|||Yes|Formation, beds|Formal|Variation of published name|Defined|Bindook Group|69879|||Lower Devonian|409|4|isotopic, U/Pb|eruption|Lower Devonian|414|3|isotopic, U/Pb|||||No|64238||GSNSW|12-DEC-05|||Name changed to demonstrate its overwhelmingly volcanic nature.  For use on new GOULBURN 1:250 000 sheet (2006) - and will include three members: Saltpetre Andesite, Four Winds Ignimbrite and Kooringle Ignimbrite Members. [Dec 2005 PP]. Includes Newacres Ignimbrite Member in Moss Vale sheet area, age: 414.4 - 409 Ma|Rhyolitic and dacitic crystal-rich ignimbrite, feldspar-pyroxene-phyric andesite, feldspar-phyric basalt, minor volcanic conglomerate, slate, laminated siltstone and lithic sandstone.|acid volcanic rock|sedimentary rock||N||17-JAN-23
Quidong Limestone|15761|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Bredbo Group|21321|||Ludlow||||deposition|Late Silurian||||||130||No|29992||||||Thickness estimated at 130m, but this includes thrust duplication.|Limestone, shale|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Quintoc Group|22719|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43755||Roberts J.|06-SEP-93|||To be used in Hastings Terrane, Northern NSW.|||||N||17-JAN-23
Quondolo Formation|23932|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neogene||||deposition|Cenozoic||||||||No|42786||Nott J.|30-AUG-90|||DESC 94/27719.|||||N||17-JAN-23
Quondong Limestone|27688|Quondong Formation|15776|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Bowan Park Limestone Subgroup|31724|||Katian||||deposition|Katian||||||34|NSW|No|33063|23214||||||Alternating units of limestone, marl and minor terrigenous mudstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Rabbit Creek Formation|31297|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Toongi Group|26178|||Silurian||||deposition|Silurian||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Racehorse Porphyry|82633|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Biotite porphyry; extensively altered, locally greisenous.|igneous rock|||Y||27-AUG-23
Raceview Formation|15784|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Woogaroo Subgroup|20540|||Norian||||deposition|Norian|211||inferred|||250||No|43910|44774|||||Ipswich-Moreton Basin. Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Ipswich 1:250k sheet area. Reference section in section in drillhole N.S. 272, Qld or NSW?|Thinly interbedded, fine- to medium-grained, quartz-lithic and quartz sandstone, silty sandstone, grey to buff siltstone and claystone, carbonaceous siltstone and claystone, minor laminite and coaly bands.|siliciclastic sedimentary rock|organic rich sedimentary rock|oceanic backarc|N||31-JUL-23
Raggatt Volcanics|15797|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Northparkes Group|38197|||Katian||||deposition|Katian|||||50|600|NSW|Yes|36066|40365|Sherwin L.||Russell, T.|18-JUN-82||Andesitic to trachyandesitic lavas, tuffs, volcaniclastic breccias and sparse fossiliferous limestones.|intermediate volcanic rock|medium-coarse grained siliciclastic rock|island arc|N||17-JAN-23
Railway Comendite|83969|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Benolong Volcanic Suite|83967|||Lower Jurassic|||||Upper Triassic|||||||NSW|No|||Simpson, B. (GSNSW)|28-AUG-23|||Named after the Railway prospect which is the type locality which is cut by the disused Molong-Dubbo railway line. Outcrop extends across both the Dubbo 1:100,000 and Wellington 1:100,000 map sheet areas. Most bodies occur in the immediate vicinity of the Grandale homestead to the west of Dowds Hill. A prominent body occurs south of the Eulandool Road. The furthest afield body occurs south of Ten Mile Lane, adjacent to Peak Hill Road. Type section is located 1 km north of Toongi Road (-32.51611531, 148.6066196, GDA94). The best exposed constituent units occur as cappings to small hills. The remnant flows are typically a few 10s of meters in thickness, however, may have been thicker prior to erosion.|K-feldspar phyric comendite comprised dominantly of K-feldspar, quartz, and arfvendsonite ± aegirine groundmass.||||N||19-SEP-23
Rain Hill Monzodiorite|81967|Rain Hill Quartz Monzonite|81808|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Wenlock|||||Llandovery||||||||No|||Campbell, L.M. (GSNSW)|02-JUL-20|||Named for the Rain Hill prospect. Replaces the quartz monzonite based on new drillhole data which shows that monzodiorite is the more accurate name; in addition monzodiorite is entrenched in company literature.||intermediate intrusive rock|||Y||17-JAN-23
Rain Hill Quartz Monzonite|81808|Rain Hill Quartz Monzonite""|41039|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Wenlock|434.9|2.3|isotopic, Ar/Ar||Llandovery||||||||No|72495||||||Name apparently introduced in  WYBORN D. 1996. Geology, chemistry and gold/copper potential of the Temora belt and adjacent Gilmore Fault system. AMIRA Project report on P425 Magmatic and Hydrothermal Evolution of Major Intrusive Related Gold Deposits. Report (unpubl.).Wyborn refers to WORMALD R.J. 1993. The petrology and geochemistry of mid to Late Palaeozoic magmatism in the Temora region, New South Wales. PhD thesis, La Trobe University (unpubl.). Wormald's thesis refers to the 434.9 +/- 2.3 Ma (Hornblende Ar-Ar) "intermediate intrusive with monzonitic affinities" (p. 41, p110-111) as the Gidgingidginbung Quartz Monzodiorite, but this name was apparently never published.||intermediate intrusive rock|||Y||17-JAN-23
Rainbow Hill Member|15810|Middle Trilobite Bed""|32537|||Yes|Member, phase|Formal|Variation of published name|Defined|Rosebank Shale|16331|||Ludlow|||inferred, biostratigraphic correlation|deposition|Ludlow|||inferred, biostratigraphic correlation||2.3|8|NSW|No|37727||||||Forms the basal part of Rosebank Shale. Previously Rainbow Hill Marl Member of Link (1970, 1971), Dalmanites Bed of Brown (1941), Middle Trilobite Bed of Mitchell (1888) and Phacops Bed of Jenkins (1879). Renamed Rainbow Hill Member by Owen and Wyborn (1979), Strusz and Garratt (1999). The unit forms an excellent marker horizon in the Yass Basin sequence and is notable for its rich faunas, particularly of trilobites.|Thin, persistent, predominantly strongly bioturbated, highly fossiliferous siltstone, mudstone, shale with some calcareous siltstone and impure limestone pods.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Ralpine Valley Sandstone Member|80565|Tarago Conglomerate|25516|||Yes|Member, phase|Formal|Other new published name|Fully described|Long Flat Volcanics|10619|||Lower Devonian|||||Lower Devonian||||||280|NSW|No|71700||||||Presumably replaces Ralpin Valley Sandstone Member, although this name still in use in GSNSW Seamless Geology 2023. The place name spelling used on the 1:100k sheet is Ralpine Valley.|Sequence of grey, green to purple, thick- to very thick-bedded, coarse- to very coarse-grained, poorly sorted volcaniclastic sandstone and granule/pebble conglomerate rare interbedded siltstone, cobble conglomerate.|medium-coarse grained siliciclastic rock|||N||27-SEP-23
Ralvona Granite|82650|Ralvona granite''|81736|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Koetong Suite|9703|Gorstian|429|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Sheinwoodian|429|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021. Wagga Batholith.|Felsic, brown-grey, medium- to coarse-grained, equigranular, biotite-muscovite granite with accessory tourmaline. Contains fine-grained enclaves of the same mineralogy as the host granite, biotite-rich enclaves, rare metasedimentary rock xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Ralvona granite''|81736|Black Rock Granite|1826|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Ludlow|||inferred||Wenlock|429|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69801|||||||Medium- to coarse-grained, leucocratic, tourmaline bearing, two-mica granite.|acid intrusive rock|||Y||17-JAN-23
Ramleh Volcanics|83041|||||Yes|Member, phase|Formal|Other new published name|Described|Echo Hills Formation|69441|||Sakmarian|291.7|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Gzhelian|295.5|4.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|73202||||||New England Orogen, southern. Only recorded volcanics interbedded with the Manning Group, first described and named by Blair (1983) unpub BSc Hons thesis. Predominantly on the western edge of the Echo Hills Formation basin, occurs in the uppermost stratigraphic position with lower intrusions probably representing feeder dykes.|Columnar jointed rhyolite flows with distinct flow banding, typically aphanitic and glassy with rare quartz and plagioclase phenocrysts, glomeroporphyritic; discontinuous sills and dykes intrude lower sections of the Echo Hills Formation.|acid volcanic rock|||N||17-JAN-23
Rampsbeck Schist|36966|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Wongwibinda Metamorphic Complex|20454|||Pennsylvanian|||||Pennsylvanian||||||||No|23720||||||Dorrigo - Coffs Harbour 1:250 000 sheet|Biotite-, sillimanite-, cordierite-, almandine-, orthoclase schist, quartzite, amphibolite|metasedimentary siliciclastic rock|||N||17-JAN-23
Ramrod Creek Coal Member|15819|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Sydney Basin.|Dull banded coal, dull & bright banded coal with sporadic fine fusainous penny bands, sporadic calcite (two main splits); carbonaceous siltstone, light brown waxy claystone, grey medium- to fine-grained sandstone and fossiliferous siltstone|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Ranch Member|28263|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Daylesford Limestone|27079|||Upper Ordovician||||deposition|Upper Ordovician|453|4||||34|NSW|No|33063|33063|||||34m thick at type section. For lithology descriptions see Semeniuk (1973 a,b).|Coarse-grained sandstone to conglomerate, containing volcanic detritus including dacite clasts. Has a distinctive basal red sandstone with quartz grains, siltstone interbeds and rhynchonellide brachiopods.|siliciclastic sedimentary rock|||N||17-JAN-23
Ranchero Granite|81815|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian|418.8|2.7|isotopic, U/Pb-Pb/Pb ion probe|||||No|||Trigg, S. (GSNSW)|22-JAN-20|||Named for the property of Ranchero on which most of the outcrop of this unit occurs. Nearest town is Ardlethan.To be published = The Ranchero Granite is named and described in a GSNSW report (Geological mapping in parts of the East Riverina Project area in 2018, by S.J. Trigg) which is in the final stages of editing and approval and will be (should be?) on-line in the first half of the year. Published in GSNSW seamless geology.|A small S-type andalusite ± cordierite granite body porphyritic in K-feldspar and ?cordierite.|igneous intrusive rock|||Y|S-type|26-SEP-23
Rangari Limestone Member|15835|Rangari Limestone|15837|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Tulcumba Sandstone|26185|||Tournaisian||||deposition|Tournaisian||||||5||No|43409||||||Of the Parry Group.|Fine-grained oolitic and minor bioclastic limestone.|carbonate sedimentary rock||forearc|N||17-JAN-23
Rankin Formation|15840|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||1580||No|43507||||||Includes: Mailman Gap, Byawatha Conglomerate and Essex Members. Formerly included "Mailman Gap Conglomerate Member". For palaeontological detail see RefID: 61964 (p261); more detailed lithology also included.|Purple-brown, medium-grained trough to tabular corss-bedded quartz sandstone, minor pebbly quartz sandstone, conglomerate (vein quartz and quartzite clasts), siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Ranmoor Member|15841|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Wallumbilla Formation|19323|||Albian||||deposition|Albian||||||||No|44352|44417||||||Mudstone, in part carbonaceous, calcareous siltstone|fine grained siliciclastic rock|||N||17-JAN-23
Rantyga Group|70113|||||Yes|Group, Suite|Formal|Other new published name|Described|Willyama Supergroup|20135|||Statherian|1705||||Statherian|1710|||||||No|70657||Stevens, B. (NSWGS)|01-MAR-06|||Of Stevens (2006a) for rocks in Redan Sub-block (equivalent to Lady Brassey Fm and Alma Gneiss at base of Thackaringa Group in Broken Hill /Euriowie Inliers) in the Broken Hill area. Age range from bottom and top Formations (Ref ID 70000, 2015).|Albite-quartz-magnetite +/- hornblende +/- K feldspar +/- biotite +/- clinopyroxene gneiss and minor basic gneiss.|metamorphosed acid igneous rock|||N||17-JAN-23
Rappville Member|82623|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Grafton Formation|7661|||Lower Cretaceous|||inferred||Middle Jurassic|||inferred|||||No|70820||||||Used in GSNSW seamless geology dataset 2021.|Interbedded sandstone, siltstone and claystone.|siliciclastic sedimentary rock|||N||20-AUG-23
Rasp Ridge Granite Gneiss|70120|Rasp Ridge Gneiss|28167|||Yes|Formation, beds|Formal|Resvd name published|Redefined|||Silver City Suite|70121|Statherian|1683|3||magmatic crystallisation|Statherian|1683|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|Yes|64944|64097|Stevens, B. (NSWGS)|01-MAR-06|||Replaces Rasp Ridge Granite of Stevens et al (1983) - presented in AJES 55(3) list of DEFINTIONS as "modified" and interpreted here as a redefinition.  See 'Unit History' under UNIT DEFINITION for details of the revision. Magmatic age: 1683+/-3Ma. Maximum metamorphic age: 1609+/-7 Ma U/Pb SHRIMP (Page et al. 2005)|Interpreted as a syn-sedimentary granitic intrusion (concordant metagranite). Gneiss.|metamorphosed acid igneous rock|||Y|S-type|17-JAN-23
Rast Group|23935|Rast group|15848|||Yes|Group, Suite|Formal|Resvd name published|Defined|Cobar Supergroup|27673|||Lower Devonian|||inferred||Pridoli||||||6000|NSW|No|41394|41394|S.Trigg|29-OCT-82|||Originally defined as consisting of Crossleys Tank Formation and "Shepherds Hill Volcanics" (Trigg 1987). Now includes: Ural Volcanics (formerly "Shepherds Hill Volcanics"), Preston Formation, Gurragong Volcanics (416.5+/-2.4 Ma) and Melougel Ignimbrite and Crossleys Tank Formation.  Faulted against the Walters Range Group by the Uabba Fault (west) and against Wagga Group by the Woorara Fault (east).|Predominantly felsic volcanic, volcaniclastic and sedimentary rocks.|acid volcanic rock|sedimentary rock||N|A-type|17-JAN-23
Rata granite|76042|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glen Emu granite suite|80442|Silurian||||intrusion|Silurian|||inferred|||||No|66934||||||Extends across Pooncarie, Booligal &  Hay 1:250 000 sheet areas. Of Glen Emu granite suite. Informal unit based entirely on geophysics. Unit interpreted as S-type granite/granodiorite. Shown as Silurian-Devonian in RefID 66943.|Interpreted as S-type granite or granodiorite.|acid intrusive rock|||Y|S-type|17-JAN-23
Rathluba Coal Member, Lower|82558|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Rathluba Formation|77606|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull and bright-banded coal with sporadic stoney bands; minor beds of coaly shale, carbonaceous shale, dark grey mudstone and light brown claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Rathluba Coal Member, Upper|82559|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Rathluba Formation|77606|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull and bright-banded coal with sporadic stoney bands; minor beds of coaly shale, carbonaceous shale, dark grey mudstone, light brown claystone and grey very fine-grained sandstone with carbonaceous partings.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Rathluba Formation|77606|Rathluba beds|31247|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Carbonaceous shale with coaly laminae, dark grey mudstone, coal with dull and bright bands & some stoney bands, grey very fine-grained bioturbated sandstone, grey-brown claystone|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Rathmines Bed|35163|||||Yes|Bed|Formal|Other new published name|Mentioned|Upper Pilot seam|18948||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Ravendale Formation|15860|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Mulga Downs Group|26063|||Upper Devonian|382.5||biozone|deposition|Middle Devonian|387.5||biozone|||1500||No|43367|66623|||||Previously included in Mulga Downs Group. Age based on fish fossils from unpub. report by Young to GSNSW. See also Ravendale Sandstone.|Thickly bedded fine-grained quartz arenite and interbedded red shale and localised basal conglomerate, fluvial origin. Upward fining.|siliciclastic sedimentary rock|||N||17-JAN-23
Ravensfield Sandstone Member|15864|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Farley Formation|6526|||Artinskian||||deposition|Artinskian||||||||No|43440||||||Lith desc added from GSNSW seamless geology 2023.|Blue-grey felds-lithic quartz sandstone ( weathering to brown), massive, cross-laminated, even textured chloritic to calcareous matrix; thin polymictic conglomerate layers, abundant marine fossils.|siliciclastic sedimentary rock|||N||03-SEP-23
Ravine beds|15888|Ravine Beds|15887|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||Late Silurian|||||Late Silurian||||||2100||No|45147||||||Used in GSNSW seamless geology dataset 2021.|Shale, slate, siltstone, conglomerate.||||N||24-JUL-23
Ravine beds, Yarrangobilly Limestone|42290|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||deposition|Late Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Limestone, sandstone, siltstone and shale deposited predominantly in shallow water|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Raworth Claystone|22732|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||B.C.Preston, K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.

|Light grey to green-grey claystone and mudstone (with carbonaceous partings), minor beds of coaly shale and carbonaceous shale|fine grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Rawsons Pass Monzogranite|77029|Rawsons Pass Adamellite|32255|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Published in GSNSW seamless geology.|White aplitic granite and leucogranite.|acid intrusive rock|||Y|S-type|30-SEP-23
Razorback Creek Mudstone|15908|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Cisuralian||||deposition|Cisuralian||||||||No|32492||||||Warwick region. NSW only, not Qld?|Dominant lithology is olive-green mudstone. Characteristic massive appearance, poorly developed bedding features except in creek exposures where beds are up to 1m. In part is slightly calcareous with some horizons fossiliferous. Rare conglomerate beds|fine grained siliciclastic rock|||N||17-JAN-23
Razorback Sandstone Member|15911|Razorback Sandstone|15913|||Yes|Member, phase|Formal|Variation of published name|Described|Bringelly Shale|2570|||Triassic||||deposition|Triassic||||||||No|31725||||||Lith desc from GSNSW seamless geology 2023.|Fine- to medium-grained quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||28-AUG-23
Receptaculites Limestone Member|27546|Receptaculites Limestone|15918|||Yes|Member, phase|Formal|Variation of published name|Defined|Taemas Limestone|17642|||Lower Devonian||||deposition|Lower Devonian||||||180||No|32483||||||Part of the Murrumbidgee Group.|Blue-grey, well bedded-massive, fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Red Cliff Coal|77102|Red Cliff Coal Measures|15930|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Upper Triassic|||inferred|deposition|Upper Triassic|||inferred|||||No|||Greenfield, J. (GSNSW)|11-JUL-12|||Clarence-Moreton Basin. Surat Basin. Used in GSNSW seamless geology dataset 2021, 2023.|Thin bedded, to laminated carbonaceous claystone and siltstone, interbedded with lenses and beds of pebble-granule conglomerate and breccia (debris flows); minor carbonaceous fine lithic sandstone; coal partings. Equivalent to the Ipswich Coal Measures|siliciclastic sedimentary rock|||N||28-AUG-23
Red Cliff Coal Measures|15930|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Triassic||||deposition|Upper Triassic||||||600|NSW|No|43384|34340|||||Of McElroy (1963). Same unit as McTaggart's Esk beds (1963). Not included in  the Woogaroo Subgroup (Bundamba Group).  Equivalent to Ipswich Coal Measures. GSNSW plan to change this unit name to Red Cliff Coal [July-2012].|Thin bedded, to laminated carbonaceous claystone and siltstone, interbedded with lenses and beds of pebble-granule conglomerate and breccia (debris flows); minor carbonaceous fine lithic sandstone; coal partings. Equivalent to the Ipswich Coal Measures|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Red East Member|25434|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Regans Creek Limestone|26869|||Eastonian||||deposition|Eastonian||||||||No|32151||||||60+m thick at type section.|||||N||17-JAN-23
Red Hill Serpentinite|77327|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||Greenfield, J. (GSNSW)|05-MAY-11|||Broken Hill Domain, Curnamona Province. Serpentinite (three separate funnel-shaped bodies, closing downwards); shear zones with serpentinite, chrysotile asbestos and cummingtonite. Broken Hill 1:100k, 1989, 2009. Said to be of Gairdner Dyke Swarm, but this is form term for Gawler Craton/Musgraves Gairdner Dolerite? Used in GSNSW seamless geology dataset 2021.|Serpentinite (three separate funnel-shaped bodies, closing downwards), shear zones with serpentinite, chrysotile asbestos and cummingtonite.|metamorphosed ultramafic rock|||N||17-JAN-23
Red Range Microleucogranite|38271|Red Range Granite|15957|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kingsgate Supersuite|82127|Middle Triassic|245||isotopic, Rb/Sr|intrusion|Lopingian|253.2|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|23811||||||Probably supersedes Red Range Leucoadamellite. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.previously of Oban Suite, within the Moonbi Supersuite.  Features minor scattered Sn-W mineralisation. Of Kingsgate Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Fine to very fine-grained, equigranular pink microleucogranite.|acid intrusive rock|||Y|I-type|24-AUG-23
Redan Gneiss|15968|Redan gneiss|15971|||Yes|Formation, beds|Formal|Other new published name|Defined|Rantyga Group|70113|Redan Suite|33125|Statherian|1704|13|isotopic, U/Pb-Pb/Pb ion probe||Statherian|1710|4|isotopic, U/Pb-Pb/Pb ion probe|||1500|NSW|Yes|43464|42897|Modified from Rayner 1949 by Barney Stevens|19-SEP-06|||Part of the Willyama Supergroup. Occurs in the Redan geophysical zone in SE Broken Hill Domain. Similar in age to the intrusive part (the Amaroo Subsuite) of Basso Suite in Olary Domain.|The rocks consist of albite and quartz with various proportions of hornblende, clinopyroxene, K-feldspar, and iron/titanium oxides.|high grade metamorphic rock||continental rift|N|A-type|17-JAN-23
Redan Suite|33125|||||Yes|Group, Suite|Informal|STRATLEX Entry|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|50606||||||Broken Hill area. May extend into SA. Used in Proterozoic Granites Project, Broken Hill - Olary Province.||acid intrusive rock|||Y||17-JAN-23
Redbank Creek Coal Member|26868|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Malabar Formation|11055|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Redbank Falls Monzodiorite|22737|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lochkovian||||||||No|22638||Warren A., Gilligan L., Raphael N.|23-NOV-93|||Cootamundra 1:250 000 sheet. Lithology description from GSNSW seamless geology 2023.|Monzodiorite.|intermediate intrusive rock|||Y||28-SEP-23
Redfern Granite|15989|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Redfern Suite|31535|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended. Of the Oberon Suite in Lachlan Fold Belt Granites map (1991).|Granite|acid intrusive rock|||Y||17-JAN-23
Redfern Suite|31535|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Oberon Supersuite|31533||||||||||||||No|42726|||||||||||Y||17-JAN-23
Redhead Conglomerate Member|28959|Redhead Conglomerate|15990|||Yes|Member, phase|Formal|Unknown or process pending|Described|Fern Valley Coal|6594|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||Formerly of Glebe Formation, Adamstown Subgroup, Newcastle Coal Measures. This Member was dropped,but revived more recently as a member of the Fern Valley Coal. Used in GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Redlands Dunite Member|82532|Redlands Igneous Complex|77347|||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Dunite; forms sills.|ultramafic intrusive rock|||Y||13-JUN-23
Redmanvale Creek Formation|15993|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Moon Island Beach Subgroup|12215|||Lopingian||||deposition|Lopingian||||||||No|45090||||||Previously of Glen Gallic Subgroup. Updated from GSNSW seamless geology dataset 2021. Now of Moon Island Beach Subgroup.|Coarse-grained lithic sandstone and polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Reedy Creek Limestone|26121|Reedy Creek Formation|39651|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cabonne Group|21409|||Katian||||deposition|Katian||||||850|NSW|No|44988|29362|||||Molong-Wellington Volcanic Belt. Also said to be Eastonian in age (australian equivalent of late ordovician).|Bedded to massive limestone, tuffaceous arenite and shale, potassic lava.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Reefton Dolerite|22748|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22638||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. Presumably a different unit to the Reefton Quartz Monzonite of Wormald's 1991 PhD. Lithology description from GSNSW seamless geology 2023.|Dark greenish-grey, medium-grained, equigranular pyroxene-rich dolerite with subophitic microstructure.|basic intrusive rock|||Y||28-SEP-23
Reevesdale Basalt|24470|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Eocene|42.9||isotopic, K/Ar|eruption|Eocene|47.3||isotopic, K/Ar||0|8|NSW|Yes|40132|40132|B.G.Jones|10-FEB-78|Russell, T.|18-JUN-82||Grey to black, fine- to medium-grained, olivine basalt and red to orange pisolitic ironstone.|basic volcanic rock|||N||27-APR-23
Regans Creek Limestone|26869|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cabonne Group|21409|||Katian|||inferred, geological correlation|deposition|Katian|||inferred, geological correlation|||158||No|44086||||||Molong-Wellington Volcanic Belt.|Thick-bedded to massive wackestone, limey mudstone, calcarenite, siliceous nodules.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Regentville Siltstone Member|16005|Regentville Siltstone|16006|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ashfield Shale|25701|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|35690|35690|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Regina Volcanics|23938|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Hope Group|25281|||Lochkovian||||eruption|Lochkovian||||||400|NSW|No|37772|41126|E.Scheibner|11-AUG-80||||Volcaniclastic-rich host sequence, that includes crystal-rich siliceous volcaniclastic sandstone/breccia and pumice breccia.|acid volcanic rock|||N||17-JAN-23
Reids Flat Granite|16014|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Pridoli|419.5|||intrusion|Ludlow|425|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||Close R. 1977, Pogson D.|11-NOV-99|||Formal name not intended in Chappell et al (1991).  Formalized on CROOKWELL 1:100 000 sheet (2000). Original reservation revived.  Part of the Wyangala Batholith. Formerly of Wyangala Suite. Stated to be of Hovells Suite on GOULBURN 1:250K map sheet (2008).|Massive to strongly foliated porphyritic biotite-after-cordierite granite,  soda-granite, soda-syenite, granodiorite.|acid intrusive rock|||Y||17-JAN-23
Reids Flat Granite, Wywurri Granite|42005|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||Hovells Suite|69895|Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Massive to strongly foliated porphyritic and equigranular, biotite-cordierite+/-muscovite soda granite, soda syenite, granodiorite|acid intrusive rock|||Y||17-JAN-23
Reids Mistake Formation|28960|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Boolaroo Subgroup|2220|||Lopingian||||deposition|Lopingian||||||||No|34351||||||Of Boolaroo Subgroup, Newcastle Coal Measures. Proposed to be replaced by Reids Mistake Tuff, 1998. See 00/30791. This name dropped 1999. Reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Conglomerate, sandstone, siltstone, claystone and tuff.|siliciclastic sedimentary rock|igneous volcanic rock||N||03-SEP-23
Renmark Group|16036|Renmark beds|16039|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Middle Miocene|14.5|||deposition|Paleocene|65|||||300|SA|No|34312|42966|||||Renmark Group underlies almost entire Murray Basin as the basal unit. Originally informally divided into 'lower' and 'upper' Renmark Beds (Harris 1966) which became the Warina Sand (lower) and Olney Formation (upper), formalised by Lawrence (1975). Correlates with the Nirranda Group and Wangerrip Group. Formerly referred to as the Knight Group (see RefID: 60599). Important aquifer.|Fluvio-lacustrine deposits: gravel, quartz sand, silt and clay; pyritic, ferruginised, unconsolidated to poorly consolidated; minor seams of brown coal (in Victoria).|regolith|||N||17-JAN-23
Rewan Formation|16052|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Rewan Group|16054|||Lower Triassic||||deposition|Lopingian|||||61|840|QLD|No|39813|48900|||||Previously of Mimosa Group. Misprinted on Banana 1:100 000 geological sheet - should have been Rewan Group. Makes a reappearance in 2011Mantuan Downs Special and 2013 Alpha 1:100 000 sheet (RefID 69379).  Not subdivided in the Galilee Basin (Exon, 1970); in the Bowen Basin it was elevated to Group status by Jensen (1975) who divided it into two Formations (Arcadia Formation and Sagittarius Sandstone).|Green lithic sandstone, pebbly lithic sandstone, green to reddish brown mudstone and minor volcanolithic pebble conglomerate (at base).|siliciclastic sedimentary rock|||N||17-JAN-23
Rhyanna Formation|70325|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Fairy Group|26052|||Lochkovian||||deposition|Lochkovian||||||||No|64238||Scott, M. (GSNSW)|04-MAY-06|||To be used on map sheets 8829 and 8828; nearest towns - Taralga and Goulburn.|Greenish-grey, thin- to thick-bedded, siltstone grading up from fine-grained sandstone at bed bases, interbedded with silicified vitric and fine-grained felsic tuff; rare olistostrome deposits; 2 subunits - volcanilithic qtz sst, +sst/limest/siltst. rock|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Rhyolite Range beds|16070|Rhyolite Range Beds|28963|||Yes|Formation, beds|Informal|Variation of published name|Described|Wild Ash Group|82703|||Lopingian|||inferred, biostratigraphic correlation|deposition|Guadalupian|||inferred|||1200||No|39252||||||Of Olgers et al (1974) - redefined by Dennis (1974a). previouisly of Wildash Group.|Rhyolite, dacite and andesite; siliceous pebbly orthoconglomerate; locally pebbly and locally fossiliferous and bioturbated sandstone, locally calcareous siltstone, mudstone; minor pyroclastics.|medium-coarse grained siliciclastic rock|acid volcanic rock|continental margin arc|N||21-JUL-23
Rickabys Creek Gravel|16079|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Miocene||||deposition|Oligocene|||||2|12|NSW|Yes|31056|42925|Gobert Val||Hawke, J.|27-AUG-77|See also Rickaby's Creek Gravel.|Surficial deposit of semi-consolidated gravels.|regolith|||N||17-JAN-23
Ridge Monzogranite|74781|Stanthorpe Adamellite|17272|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|61789||||||Previously identified as Stanthorpe Adamellite. Intrudes Permian felsic volcanics. Intruded by Undercliffe Falls Monzogranite. May possibly extend into Qld, but not believed to be regionally extensive.|Granular, medium-grained, seriate, biotite-bearing monzogranite.|intermediate intrusive rock|||Y||17-JAN-23
Rifle Range Tuff Bed|77046|Rifle Range Tuff Member|16098|||Yes|Bed|Informal|Variation of published name|Briefly described|Blow Hole Latite Member|1968|||Lopingian|252|4|isotopic, K/Ar|eruption|Lopingian|||inferred|||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW. Age from parent unit. Used in GSNSW seamless geology dataset 2021, which is the source of the K/Ar date, but exactly the same date is given for a number of Mmebers within the Gerringong Volcanics, so it is not entirely clear what material was actually dated.|Red tuffaceous sandstone|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Ripley Road Sandstone|26871|||||Yes|Formation, beds|Formal|Other new published name|Defined|Woogaroo Subgroup|20540|||Lower Jurassic||||deposition|Upper Triassic||||||150|QLD|No|43910|44774|||||Aquifer: generally artesian. Type section in  drill hole N.S. 272, Qld or NSW?|Thick bedded, fine to medium to very coarse-grained quartz-rich sandstone and quartz-rich granule conglomerate. A grey clay matrix is characteristic of fresh rock.|medium-coarse grained siliciclastic rock||oceanic backarc|N||31-JUL-23
Risdon Stud Formation|16116|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Silverwood Group|16903|||Late Silurian|||inferred, biostratigraphic correlation|deposition|Early Cambrian||||||2500||No|31999||||||Redefined by Kenrick van Noord in his 1999 QUT PhD. To be published in QGMJ.|Silicified sequence of andesitic crystal-lithic tuff and thin to medium bedded, fine grained arenite and mudstone.|intermediate volcanic rock|medium-coarse grained siliciclastic rock|island arc|N||17-JAN-23
Riversdale Volcanics|27552|Riversdale Rhyolite|16137|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kandos Group|29513|||Pragian|389|8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Pragian|410|8|isotopic, U/Pb-Pb/Pb ion probe|||1250||No|43476|23170|||||Not related to Riversdale Formation, Georgina Basin.|Purple dacitic to rhyolitic ignimbrite, minor lava, silicic airfall tuff and accretionary lapilli lava. Sporadic minor limestone and minor conglomerate.|acid volcanic rock|||N||11-SEP-23
Rivertree Syenogranite|82640|Rivertree Granite|25445|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Cullendore Supersuite|82402|Lower Triassic|||inferred|magmatic crystallisation|Lower Triassic|249.1|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pink to grey, coarse-grained, porphyritic, less commonly equigranular, biotite-(hornblende) syenogranite; aplitic to porphyritic dykes. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Rixons Pass Teschenite|16153|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Cretaceous|||||Cretaceous||||||||No|36220||||||Used in GSNSW Seamless geology 2021, 2023.|Dark-grey fine-grained teschenite.||||Y||26-SEP-23
Roach Island Tuff|24473|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Lord Howe Volcanic Complex|83554|||Messinian|||inferred, overlying unit|eruption|Messinian|||inferred||||NSW|Yes|36958||I.McDougall|24-NOV-80|||For use on Lord Howe Island. Used in GSNSW Seamless Geology 2021.|Interbedded tuff, thin lavas and fragmental materials.|basic volcanic rock|||N||17-JAN-23
Roach Island Tuff, North Ridge Basalt, Boat Harbour Breccia, Mount Lidgbird Basalt|70140|||||Yes|Group, Suite|Informal|Variation of published name|Not recorded|||||Miocene||||eruption|Miocene||||||||No|||||||Informal grouping of units on Lord Howe Island for 1:1 million Geology of NSW.|Basalt, basaltic tuff and breccia; overlain in part by calcareous sands|basic volcanic rock|||N||17-JAN-23
Robertson Basalt|28287|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Cenozoic|35.1||isotopic, K/Ar|eruption|Cenozoic|63.8||isotopic, K/Ar|||||No|29901|||||||Alkaline olivine basalt and basanite|basic volcanic rock|foid-bearing volcanic rock||N||27-APR-23
Rock Flat Granodiorite|67880|Rock Flat Tonalite|32183|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Mila Suite|31609|Lower Devonian||||intrusion|Late Silurian||||||||No|||||||Rock Flat Tonalite is now called the Rock Flat Granodiorite (source is NSWGS South RACAC project data). Published in GSNSW seamless geology.|Biotite granodiorite|acid intrusive rock|||Y||26-SEP-23
Rockford Ignimbrite Member|70506|Highlands Tuff Member|70487|||Yes|Member, phase|Formal|Resvd name published|Defined|Currabubula Formation|5055|||Pennsylvanian||||intrusion|Pennsylvanian||||||||No|62095|62095|||||In the Werrie Block/Tamworth Belt.|Purple to beige, unwelded to possibly slightly welded ignimbrite; groundmass micropoikilitic.|acid volcanic rock|||N||02-JUN-23
Rockhampton Group|16202|Rockhampton Series|16204|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Visean||||deposition|Tournaisian|350.9|2.7|isotopic, U/Pb-Pb/Pb ICP-MS||1980|4000||No|44369|44388|||||See also Lexicon. Intruded by Toondahra Granite. Supersedes Crana beds, Cania Formation, Caswell Creek Group, Derrarabungy beds. The type area is in the Lion Creek, Ridgelands and Fitzroy blocks.|Dark grey mudstone, siltstone, felsic volcaniclastic sandstone, polymictic conglomerate, ooid-bearing sandstone and conglomerate with mudstone rip-up clasts; oolitic and pisolitic limestone and minor skeletal limestone; rare rhyolitic ignimbrite.|siliciclastic sedimentary rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Rockisle Granodiorite|16209|Rockisle Adamellite|16208|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Rockisle Suite|74023|Late Permian||||intrusion|Cisuralian||||||||No|38822||||||Probably supersedes Rockisle Adamellite. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Nundle Suite.|Granodiorite and minor monzogranite bearing trace secondary sub-aluminous calcic amphibole; primary hornblende bearing granitoids of mafic complexes; some are amphibole bearing phases in Hillgrove Suite members|acid intrusive rock|||Y|I-type|17-JAN-23
Rockley Volcanics|16213|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Upper Ordovician|||inferred, overlying unit|deposition|Upper Ordovician|||inferred, geological correlation|||5000|NSW|No|43469|43469|||||Intruded by Davies Creek Granite.|Massive to flow banded, coarsely to finely porphyritic, andesite to basalt with phenocrysts of plagioclase, pyroxene and hornblende; minor andesitic volcanic sandstone and siltstone.|medium-coarse grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Rocksberg Greenstone|16216|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Carboniferous|||||Upper Devonian|||||3000|4000||No|44211||||||North D'Aguilar Subprovince, Wandilla Province (Geology of Queensland 2013, p324)|Greenschist, glaucophane schist, amphibolite, actinolite schist, phyllite|metamorphosed basic igneous rock|metasedimentary siliciclastic rock|accretionary wedge|N||17-JAN-23
Rockton Granodiorite|16221|Rockton|22769|||Yes|Formation, beds|Formal|Resvd name published|Described|||Tonghi Suite|18336|Lower Devonian||||intrusion|Late Silurian||||||||No|41850||||||In Chappell et al (1991) this unit is labelled as the Weeragua or Fiddlers Green Granite and the Rockton Granite is in NSW just northwards.|Hornblende granodiorite|acid intrusive rock|||Y||17-JAN-23
Rockvale Monzogranite|76965|Rockvale Adamellite|16223|||Yes|Formation, beds|Formal|Variation of published name|Described|||Rockvale Suite|73933|Gzhelian|296.7|2.3|isotopic, U/Pb|intrusion|Kasimovian|303|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. GSNSW shows this as Carboniferous (from U/Pb SHRIMP date), although previously considered Permian.|Biotite monzogranite, granodiorite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|26-SEP-23
Rockvale Suite|73933|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||Hillgrove Supersuite|67847|Carboniferous|||||Carboniferous||||||||No|||Champion, Blevin and Bultitude|20-NOV-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007. Intention to include Rockvale Adamellite and Tobermory Adamellite and be included in Hillgrove Supersuite has not been published.|Biotite monzogranite, granodiorite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Rocky Beach Metamorphic Melange|72991|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician|||||Middle Ordovician|||||||NSW|Yes|62058||Och, D. and Leitch, E.C. (GSNSW)|29-MAR-07|||For use on map sheet 9435-2S; nearest town is Port Macquarie. Published in 2007 series Quarterly Notes/GSNSW.|Phacoids of multiply deformed polymetamorphosed high-pressure metamorphic rocks of mafic igneous parentage, and low-grade blocks of sedimentary and basaltic rocks derived from Watonga Formation, tog. with a narrow slice of antigorite serpentinite.|low-intermediate grade metamorphic rock|||N||17-JAN-23
Rocky Bridge Granodiorite|29588|Rocky Bridge Granite|22770|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Silurian||||intrusion|Silurian||||||||No|22679||Henderson T. Wyborn D.|19-APR-93|||Blayney 1:100 000 sheet. Replaced Rocky Bridge Granite AUG-95. Originally included with Neville Granite (now Sunset Hills Granite). Intrudes the Adaminaby Group. Hornblende-biotite granodiorite.|Hornblende biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Rocky Creek Conglomerate|16236|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Currangandi Group|38099|||Bashkirian||||deposition|Bashkirian||||||730||No|43385|24605|||||Geological Province: Boomi, Kathrose and Darthula Blocks.|Coarse boulder, cobble and pebble fluvial orthoconglomerate and paraconglomerate, minor feldsarenite and litharenite and intermediate ash flow, and glaciolacustrine tillite.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Rocky Glen Monzogranite|82645|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Bundarra Supersuite|67901|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse-grained biotite (+/- muscovite, +/- cordierite) monzogranite; possibly minor syenogranite.|acid intrusive rock|||Y|S-type|17-JAN-23
Rocky Hill Granite|16243|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|40497|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Rocky Ponds Group|32475|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Frasnian|376|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Frasnian|382.7|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|50628||Raymond, O.L.|10-JUN-98|||Note that Middle Devonian age is based on AGSO 1996 timescale.  Use of the ICS2004 timescale would put this unit in the Late Devonian (Frasnian).|Felsic to mafic volcanics.|acid volcanic rock|basic volcanic rock|intraplate setting|N|A-type|27-APR-23
Rocky River Monzogranite|68865|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Bungulla Supersuite|82122|Lower Triassic||||intrusion|Lower Triassic||||||||No|60422||||||Of the Bungulla-type granite in the Moonbi Supersuite. Later classed in Bungulla Suite of the Stanthorpe Supersuite.Of Bungulla Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Medium- to very coarse-grained, texturally heterogeneous, porphyritic biotite-hornblende-monzogranite with minor quartz monzonite.|acid intrusive rock|||Y|I-type|11-JUN-23
Rocky Tank Conglomerate Member|33761|||||Yes|Member, phase|Formal|Resvd name published|Redefined|Ravendale Formation|15860|||Givetian||||deposition|Givetian||||||50|NSW|Yes|50129||Neef G.|27-OCT-99|Roberts, J.|02-JUL-03|Western New South Wales. Shown as Member of Ravendale Formation in 2009 Koonenberry notes.|Conglomerate containing cobbles and boulders of grey quartzose sandstone, quartzite and vein quartz; up-sequence are coarse-grained sandstones with conglomeratic lenses.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Roden Quartz Syenite|16249|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|39214|||||||||||Y||17-JAN-23
Rollans Road Formation|22776|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Tournaisian||||deposition|Famennian||||||1000||No|22736|22736|Roberts J.|13-FEB-95||||Medium to thick bedded dark siltstone and volcaniclastic sandstone|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Rolling Downs Group|16267|Rolling Downs Formation|16264|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Cenomanian||||deposition|Barremian||||||1200|QLD|No|44269|44417|||||Defined Qld, Vine and Day (1965). See also Lexicon. Formerly Battle Camp Shale and Wolena Claystone and Urisino beds. Age: ~114-91Ma. At least 1000m thick. Age range from constituent units (Wallumbilla Fm, Winton Fm). Namur Sandstone appears as within Rolling Downs Group on Cobham Lake 100k (2010) and Mount Arrowsmith 25k (2007) maps.|Grey mudstone, siltstone and fine sandstone, minor glauconitic sandstone; locally hardened and partially calcreted grey clayey regolith interpreted as slaked unstable mudstone. Includes quartzite dropstones, sparse marine fossils.|fine grained siliciclastic rock||intracratonic|N||17-JAN-23
Rolling Grounds Latite|26126|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lochkovian||||eruption|Lochkovian||||||250|NSW|No|29456|45147||||||Latite, minor andesite|intermediate volcanic rock|||N||17-JAN-23
Rombo Coal Member|16296|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Waukivory Creek Formation|24087|||Late Permian||||deposition|Late Permian||||||||No|29942||||||See also Rombo Coal, Rombo seam. Previously (2002) included in Lucernia Coal, upper Hunter Coalfield.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Romner Granite|33797|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Whick Whack Suite|69869|Ludlow||||intrusion|Ludlow||||||||No|50233||Pogson D.|11-NOV-99|||CROOKWELL 1:100 000 sheet area.  Of the Wyangala Batholith.|Medium-coarse grained, foliated biotite granite; high K, medium-high Th and low-high U response and low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Rook Tuff|27299|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Curdimurka Subgroup|24236|||Cryogenian||||eruption|Tonian|802|10|isotopic, U/Pb|||60|SA|Yes|37854|37854|B.Murrell|29-NOV-76|Gatehouse, C.G.|10-AUG-83|Part of Adelaidean sequence. Age: Cryogenian [in 2005]. Within the Curdimurka Subgroup, Callanna Group.|Tuffaceous grey shale and siltstone with thin reddish porphyritic tuff, possibly an ignimbrite.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Rookery Limestone Member|25746|Rookery Limestone member|16303|||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Meryula Formation|11741|||Lochkovian||||deposition|Lochkovian|||||||NSW|No|35287|39618|||||Contains late Lochkovian age-diagnostic conodont. Lithology description from GSNSW seamless geology 2023.|Massive and thin-bedded bioclastic calcarenite.|carbonate sedimentary rock|||N||28-SEP-23
Rose Valley Member|27890|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bunyan Formation|3053|||Miocene||||deposition|Miocene||||||||No|40664|||||||Sand, gravel, clay|siliciclastic sedimentary rock|||N||17-JAN-23
Rosebank Shale|16331|Derringullen Formation|5398|||Yes|Formation, beds|Formal|Other new published name|Defined|Hattons Corner Group|8145|||Pridoli|||biozone|deposition|Ludlow|||biozone||82|128|NSW|No|31852|68592|||||Formerly of the Booroo Ponds Group (1970) - now included in the Hattons Corner Group (2003). Previously included in the Derringullen Formation,Hume Shale, Bowning Beds, Hume Beds. See Goulburn Notes (2012), p429, 430 for details.|Basal thin, persistent, strongly bioturbated, highly fossiliferous horizon of siltstone, mudstone, shale, minor calcareous siltstone and limestone; overlain by grey, green-grey and black shale, silty mudstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Rosebrook Limestone|16341|Rosebrook limestone|16343|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|42414||||||Not related to Rosebrook Member.||carbonate sedimentary rock|||N||17-JAN-23
Rosebrook Member|16342|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bunyan Formation|3053|||Miocene||||deposition|Miocene||||||||No|40664||||||Not related to Rosebrook Limestone.|Clay with minor sandy clay|fine grained siliciclastic rock|||N||17-JAN-23
Roseburg Granite|23946|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Roseburg Suite|31629|Silurian||||intrusion|Silurian||||||||No|42726||Close R. Henderson G.A.M.|06-JUN-77|||Card.|Foliated porphyritic biotite corderite granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Roseburg Granite, Little Forest Granite, Mandurama Ponds Granodiorite|42006|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Foliated porphyritic biotite cordierite granite; biotite granite, leucogranite; hornblende allanite biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Roseburg Suite|31629|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Rosedale Harzburgite Member|82529|Rosedale Igneous Complex|77339|||Yes|Member, phase|Informal|Variation of reserved name|Briefly described|Westlyn Igneous Complex|82527|||Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. E-W axis of elongation.|Harzburgite.|ultramafic intrusive rock|||Y||13-JUN-23
Rosedale Member|16344|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Currabubula Formation|5055|||Bashkirian||||deposition|Bashkirian||||||||No|44835|44835|||||In the Werrie Block/Tamworth Belt.|An interval of proglacial lake deposits with rhythmic grain-size alternation between clay, silt and sand laminae, and dispersed gravel.|siliciclastic sedimentary rock|||N||17-JAN-23
Roseleigh Rhyolite|82651|Roseleigh rhyolite|81257|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wuchiapingian|260.5|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Capitanian|260.5|1.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021.|Very pale green, highly-porphyritic, crystal-rich dykes, medium- to coarse-grained rhyolite, rarer aphyric rhyolite. Where porphyritic - euhedral to subhedral phenocrysts of quartz (10%), K-feldspar (10%) and plagioclase (5%), microcrystalline groundmass.|acid volcanic rock|||N|A-type|17-JAN-23
Roseleigh rhyolite|81257|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|72084||||||Informal name, for a previously unrecorded unit of rhyolite mapped on Leahy Road, c.900m SSE of Roseleigh Manor (whence the name). N-S outcrop; outcrops of similar lithology are described. Photographs, photomicrographs.|Crystal-rich, quartz-feldspar-phyric rhyolite lava or shallow sill. Fairly detailed description.|acid volcanic rock|||N||17-JAN-23
Rosemeath Formation|33387|Bombala Beds|26412|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Mississippian||||deposition|Upper Devonian|366||inferred, underlying unit|||420|NSW|Yes|23329|23329|McQueen, K.G.|17-MAR-99|Brakel, A.|23-MAR-99|Bombala area. Formerly included in fluvial 'red bed' rocks of the Merrimbula Group.|||||N||17-JAN-23
Roset Sandstone|26127|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mouramba Group|25736|||Lochkovian||||deposition|Lochkovian||||||1100|NSW|No|41394|41528||||||Crossbedded and parallel-laminated, thick-bedded, well-sorted fine and medium-grained lithic-quartz sandstone, intercalated on a scale of 10 to 30m, interbedded with thin-bedded ripple cross-laminated, fine to very fine grained sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Roseville Coal Member|77067|Roseville seam|38306|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Jilleon Formation|23668|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin. Used in GSNSW seamless geology dataset 2021.

|Up to 8 bright coal bands separated by stone bands|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Roseville seam|38306|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by Roseville Coal Member [GSNSW July-2012]|||||N||17-JAN-23
Roslyn Suite|70028|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||Marulan Supersuite|69871||||||||||||||No|||Thomas, O. (GSNSW)|31-JAN-06||||||||Y||17-JAN-23
Rossdhu Granite|29669|Tea Tree Granite (NSW)|17912|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Tea Tree Suite|31648|Carboniferous||||intrusion|Carboniferous||||||||No|43639||Wallace D. for Lachlan NGMA project.|01-SEP-95|||To replace Tea Tree Granite. Bathurst 1:250 000 sheet area. Intrudes the Adaminaby Group.|Pale pink, coarse-grained equigranular biotite granite|acid intrusive rock|||Y|S-type|17-JAN-23
Rossi Granodiorite|24477|Rossi Granite|16367|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Rossi Suite|31632|Lower Devonian||||intrusion|Late Silurian|||||||NSW|Yes|39028|40276|D.Wyborn|30-NOV-79|Russell, T.|14-SEP-82|Used on the Araluen 1:100 000 sheet. Superseded by Thurralilly Suite in 2010.|Foliated biotite granodiorite, foliated hornblende biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Rossi Suite|31632|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Rossmore Formation|16368|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pennsylvanian||||deposition|Pennsylvanian||||||||No|43407||||||Of Manser (1968). Synonymous with Currabubula Formation of Voisey and Williams (1964) and Upper Kuttung Series of Carey (1937).|||||N||17-JAN-23
Rosyth Limestone|27891|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Waugoola Group|19623|||Early Silurian||||deposition|Early Silurian||||||||No|43344||||||||carbonate sedimentary rock|||N||17-JAN-23
Rothery Tuff|24478|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||||||eruption|||||||6000|NSW|Yes|39655||S.J.Richardson|18-OCT-76|Russell, T.|18-JUN-82||||||N||17-JAN-23
Rothlyn Formation|24479|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bredbo Group|21321|||Lower Devonian|407|7|isotopic, K/Ar|magmatic crystallisation|Late Silurian|420.2|2.9|isotopic, U/Pb-Pb/Pb ion probe||700|1900|NSW|Yes|49690||Henderson G.A.M., Lewis P.|02-AUG-85|||Appears in BMR Record 1990/35. Name varied 12-DEC-90. BD in Chappell et al (1991).  Includes part of the former "Bransby Beds" of Richardson (1979) not included in the Colinton Volcanics.  In the Canberra-Yass Shelf.|Massive buff siltstone, volcanic sandstone; massive crystal rich coarse volcanic sandstone; siltstone; rhyolite.|siliciclastic sedimentary rock|acid volcanic rock||N||06-SEP-23
Rough Creek Tonalite|32244|Rough Creek Granite|16382|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Tom Groggin Suite|18286|Late Silurian||||intrusion|Late Silurian||||||||No|44092||||||See also Rough Creek Gneissic Granite.|Biotite granodiorite and tonalite commonly containing cordierite, common metasedimentary xenoliths|acid intrusive rock|||Y||17-JAN-23
Roumalla Monzogranite Phase|82648|Roumalla Monzogranite|82647|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Pringles Monzogranite|41071|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021.|Equigranular to seriate, leucocratic, K-feldspar-rich, biotite monzogranite, and possibly syenogranite. S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Round Flat Tonalite|25452|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Jindabyne Suite|8971|Lower Devonian|412.7|9.2|isotopic, Rb/Sr|intrusion|Late Silurian|416|4.6|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|35109|35109|||||Rb/Sr Age: 412.7+/-9.2 Ma. See also misspelling - Roundflat Tonalite. See also RefID 67060 p505.|Hornblende-biotite tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Round Mountain Leucomonzogranite|76966|Round Mountain Leucoadamellite|16389|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Carrai Supersuite|82123|Middle Triassic|238|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Middle Triassic|238|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Previously of Round Mountain Supersuite. part of Carrai Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Biotite leucogranite, minor hornblende-biotite leucogranite, miarolitic albite leucogranite dykes|acid intrusive rock|||Y|I-type|19-JUL-23
Round Top Formation|27559|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Byron Range Group|3235|||Devonian||||deposition|Devonian||||||30||No|60086|||||||||||N||17-JAN-23
Rouse Hill Siltstone Member|28979|Rouse Hill Siltstone|16391|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Ashfield Shale|25701|||Middle Triassic||||deposition|Middle Triassic|||||||NSW|No|35690|35690|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Rowan Formation|26878|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Roadian|271.6|.08|isotopic, U/Pb-Pb/Pb, TIMS|deposition|Artinskian||||||||No|34015|||||||Coal seams, siltstone, sandstone|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Rowen Brae Porphyry|29693|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||eruption|Upper Ordovician||||||||No|43640|23214|Krynen, J. for Lachlan NGMA project.|12-SEP-95|||To replace proposed name Barton Park Porphyry. Bathurst 1:250 000 sheet area. Intrudes the Fairbridge Volcanics and lower portion of the Weemalla Formation.|Dark grey dacite to latite porphyry.|acid volcanic rock|intermediate volcanic rock||Y||17-JAN-23
Rowena Formation|16395|Mootwingee Series|12303|||Yes|Formation, beds|Formal|Other new published name|Fully described|Mutawintji Group|72958|||Darriwilian||||deposition|Tremadocian||||||1700||No|43501||||||Equivalent to the upper part of the Gnalta stage of the former Mootwingee Series. Then of the former Mootwingee Group (name now changed - see Mutawintji Group).Koonenberry Belt. Includes the arandaspid Arandaspis sp. Indet.|Interbedded quartzose sandstones, siltstones, shales, conglomerates and occasional calcareous beds; a thin micrite/limestone horizon occurs in the middle of the Formation, which also has a c.15 m thick basal pebbly grey quartzite unit.|fine grained siliciclastic rock|carbonate sedimentary rock||N||21-SEP-23
Roxburgh Formation|26323|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kandos Group|29513|||Lower Devonian||||deposition|Lower Devonian|||||500|1000|NSW|Yes|36285|36285|J.Pemberton|24-MAY-78|Felton, E.A.|25-JUN-79||Arenite, rare volcaniclastic conglomerate and accretionary lapilli tuff horizons.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Ruby Creek Leucogranite|81636|Ruby Creek Granite|16417|||Yes|Formation, beds|Formal|Variation of published name|Described|||Ruby Creek Suite|82409|Middle Triassic|||||Middle Triassic|241.9|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Together with the Stanthorpe Granite forms the Ruby Creek Sn-W district. Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publications. Lithology description from GSNSW seamless geology 2023.|Pink to white and rarely pale to medium grey, fine- to medium-grained, weakly porphyritic (marginal) to equigranular, biotite leucomonzogranite to leucosyenogranite; abundant miarolitic cavities.|acid intrusive rock|||Y||26-SEP-23
Ruby Creek Suite|82409|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Stanthorpe Supersuite|73988|Middle Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Leucogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Ruby Hill breccia|82652|Ruby Hill neck 78225|78225|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Jurassic|||inferred||Jurassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Basic breccia with eclogite and granulite inclusions, intruded by alkali olivine basalt dykes.|basic volcanic rock|||N||17-AUG-23
Rubyview Gneiss|16421|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian|||||Ordovician|||||||VIC|Yes|37871||P.O'Shea|29-NOV-76||01-JAN-77||Gneiss|high grade metamorphic rock|||N||17-JAN-23
Rudd Bed|35165|||||Yes|Bed|Formal|Variation of published name|Mentioned|Upper Pilot seam|18948||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Rufus Formation|16430|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Pleistocene||||deposition|Pleistocene||||||6|VIC|Yes|30994|30996|Gill E.D.|06-SEP-72||||||||N||17-JAN-23
Run Boundary Granite|25456|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Silurian||||intrusion|Ordovician||||||||No|44340|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Rutherford Formation|16463|Rutherford Stage|30791|||Yes|Formation, beds|Formal|Other new published name|Fully described|Dalwood Group|28493|||Artinskian||||deposition|Sakmarian||||||385||No|43385||||||See also Lexicon. SI56-1/Singleton, Cessnock.|Siltstone, marl and minor sandstone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Rutherglen mafic-ultramafic|82835|Rutherglen Igneous Complex|77349|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||||Middle Ordovician||||||||No|||Campbell, L.M. (GSNSW)|20-OCT-21|||Of Fifield Suite. Forms dykes and annular structures with a general NW to NE axis of elongation. Used in GSNSW seamless geology dataset 2023.|Mafic to ultramafic igneous rock.|basic igneous rock|ultramafic igneous rock||Y||13-JUN-23
Rutledge Conglomerate Member|80085|Rutledge Quartzite Member|16472|||Yes|Member, phase|Formal|Variation of published name|Defined|Captains Flat Formation|3563|||Late Silurian|||inferred, overlying unit||Wenlock|||inferred, lithostratigraphic correlation||||NSW|No|71069||||||Revised and restricted to rocks at the base of the Hoskinstown Group.|Massive to normally graded, medium to thickly bedded, cream to brown, fine to coarse grained quartz arenite to lithic arenite and well rounded to angular, clast-supported, pebble conglomerate.|medium-coarse grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Ryan Granite|81810|Jindera Granite|8980|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian|417.4|2.1|isotopic, U/Pb-Pb/Pb ion probe|||||No|||Eastlake, M. (GSNSW)|21-JAN-20|||Named for the abandoned townsite of 'Ryan', west of Henty, NSW. The Ryan Granite crops out poorly approximately 16 km WSW of Henty, NSW. Previously included as part of the Jindera Granite by Bull (2017; GSNSW Report GS2017/0149). The rock also exhibits swapped rims texture among K-feldspar crystals, and secondary albite has crystallised between the K-feldspars.  To be published in the Geological Survey of New South Wales Stratigraphic Unit Tables during 2020. Published in GSNSW seamless geology.|Metasomatically altered, medium-grained biotite-granite with Si-poor secondary minerals such as aegerine, probable riebeckite, actinolite, allanite, and spinel.|igneous intrusive rock|||Y||26-SEP-23
Rye Park Granite|16485|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Hovells Suite|69895|Ludlow||||magmatic crystallisation|Llandovery|431.4|4.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|29989||||||Part of the Wyangala Batholith.|Foliated, cream-coloured, medium- to coarse-grained equigranular muscovite-biotite granite; very low magnetic susceptibility; leucocratic monzogranite.|acid intrusive rock|||Y||17-JAN-23
Rylstone Volcanics|16489|Rylstone Tuff|16488|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Cisuralian|292||isotopic, Rb/Sr|eruption|Cisuralian|292|10||||300||No|34037|23170|||||Will replace Rylstone Tuff in the Mudgee 1:100 000 sheet area. Age: 292Ma (Rb-Sr, Shaw et al 1989).|Rhyolitic to dacitic pyroclastic rocks; tuffaceous sandstone, breccia, conglomerate, siltstone, thin airfall tuff horizons; flow banded rhyolite lavas.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Ryrie Formation|16491|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Yalmy Group|20777|||Early Silurian||||deposition|Early Silurian||||||1600|NSW|Yes|32820|36413|Richardson S.|01-JAN-75|Hawke, J.|20-FEB-79|Age: Llandovery. Equivalent to the Tombong Formation. 'Gungoandra Siltstone Member' excluded from this unit in 1994.|Quartzite and quartz-rich sandstone with minor interbedded siltstone and shale|siliciclastic sedimentary rock|||N||17-JAN-23
Saddle Tuff|16495|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boraig Group|24753|||Lower Devonian||||eruption|Lower Devonian||||||270||No|60086|||||||Rhyolitic tuff, conglomerate.||||N||17-JAN-23
Saddleback Latite Member|26884|Saddleback Latite|16498|||Yes|Member, phase|Formal|Unknown or process pending|Described|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|29900||||||Of Gerringong Volcanics [advice from J.Greenfield, GSNSW OCT-2010]|Pillowed, coarsely porphyritic latite flow, with phenocrysts of labradorite and augite.|intermediate volcanic rock|||N||17-JAN-23
Saddleback Latite Member, Cambewarra Latite Member|42281|||||Yes|Member, phase|Informal|Variation of published name|Not recorded|Gerringong Volcanics|7155|||Late Permian||||eruption|Late Permian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Latite|intermediate volcanic rock|||N||17-JAN-23
Saddleback Mountain Agglomerate|16499|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Triassic|||||Upper Triassic||||||||No|43346|43346||||||Yellow-green to grey volcanic agglomerate.||||N||19-JUL-23
Sailor Jack Granite|41588|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Sailor Jack Suite|73887|Lower Triassic||||intrusion|Late Permian|253.1|1.5|isotopic, U/Pb-Pb/Pb ion probe|||||No|63732||||||To be used on Warwick and Tweed Heads 1:250 000 map sheets, GSQ - map symbol Rgsj. Probably replaces Herries Adamellite. Also used on Queensland 1:1million geological map, National Maps Project.  In Geology of Queensland 2013, p458. Replaced in NSW by Sailor Jack Monzogranite in 2017.|Pale pink to pale grey, medium-grained, porphyritic, hornblende-biotite monzogranite; with scattered mafic enclaves to ~3cm.|acid intrusive rock|||Y|I-type|19-OCT-23
Sailor Jack Monzogranite|82413|Sailor Jack Granite|41588|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Sailor Jack Suite|73887|Lower Triassic|||inferred||Late Permian|253.1|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Sailor Jack Granite still in use in QLD.|Pale pink to pale grey, fine- to medium-grained, moderately to highly porphyritic hornblende-biotite monzogranite to clinopyroxene-biotite-hornblende granodiorite; locally granophyric.|acid intrusive rock|||Y||19-OCT-23
Sailor Jack Suite|73887|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Sailor Jack Supersuite|82412|Lower Triassic||||intrusion|Late Permian||||||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov.2007. Originally of  Ballandean Supersuite, from 2017, of Sailor Jack Supersuite.||igneous intrusive rock|||Y||17-JAN-23
Sailor Jack Supersuite|82412|||||Yes|Supergroup|Informal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Late Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite to granodiorite.|acid igneous rock|||Y|I-type|17-JAN-23
Sainsbury Park Granite|79108|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Tarcoon Suite|77133|Lochkovian||||magmatic crystallisation|Pridoli|417.3|2.8|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|69635|71345|||||North-western Lachlan Orogen. U-Pb SHRIMP zircon magmatic crystallisation age. Shown as Sainsbury Park granite p136. Age indistinguishable from Bobelah Granite, Compton Downs Granite.|Sample: Highly weathered quartz-biotite granite with a kaolinitic matrix with some feldspar pseudomorphs. The granite is massive, but is cut by narrow, 040deg-trending mylonitic shear-bands.|acid intrusive rock|||Y|I-type|05-SEP-23
Saint Andrews beds|75579|Saint Andrews Beds|26885|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Devonian|||||Silurian||||||||No|43441|||||||Fine- to medium-grained sandy and calc-silicate hornfels.|metasedimentary carbonate rock|||N||17-JAN-23
Saint Heliers Coal Member|16535|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|39346||||||Of Greta Coal Measures, Sydney Basin.|Coal, a few 'floating' or ?discontinuous bands of claystone or pyrite|organic rich sedimentary rock|||N||17-JAN-23
Saint Marys Formation|26130|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Miocene||||deposition|Oligocene|||||2|9.6|NSW|Yes|35098|42925|Gobert Val||Hawke, J.|27-AUG-77|Not to be confused with St Marys granitic nomenclature in Tasmania.|Laterised sand and clay with ferricrete bands and minor silcrete.|regolith|||N||17-JAN-23
Salamagundia Granite|25462|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Salisbury Sandstone|24487|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Namurian||||deposition|Visean||||||650|NSW|Yes|36528|44244|J.Roberts|23-JAN-74||||Brown to orange, medium to thickly bedded lithic sandstone with rare cross stratification and minor conglomerate, with thin interbeds of green, red or purple siltstone in upper parts of the formation|medium-coarse grained siliciclastic rock||forearc|N||17-JAN-23
Salt Ash Coal Member|77596|||||Yes|Member, phase|Reserved|Reserved|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin.|Coal: dull and bright bands; carbonaceous shale, coaly shale, brown-grey mudstone, sporadic sideritic bands|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Saltpetre Andesite Member|69884|||||Yes|Member, phase|Formal|Resvd name published|Defined|Quialigo Volcanics|69864|||Pragian||||eruption|Lochkovian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Within the Bindook Group.|Green-grey flow banded feldspar-pyroxene-phyric andesite; commonly vesicular and vuggy.|intermediate volcanic rock|||N||17-JAN-23
Saltwater Creek Formation|27561|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Wittingham Coal Measures|20334|||Late Permian||||deposition|Late Permian||||||100||No|34448|||||||Sandstone, siltstone, minor coal bands|siliciclastic sedimentary rock|||N||17-JAN-23
Sams Road Rhyolite Member|16576|Sams Road Rhyolite|16577|||Yes|Member, phase|Formal|Other new published name|Defined|Alum Mountain Volcanics|342|||Cisuralian|275.1|3.4|inferred, overlying unit|eruption|Cisuralian|||inferred||||NSW|No|42833|42833||||||Welded ignimbrite (mainly glass shards with minor angular lithic fragments and fiamme), small amounts of crystal tuff, epiclastic deposits, autobreccia, and stratified polymict breccia.|acid volcanic rock|||N||30-AUG-23
Sandal Member|32683|Sandal Formation|26132|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Burcher Greywacke|3060|||Silurian||||deposition|Silurian||||||||No|50385||Duggan M. Lyons P.|05-AUG-98|||Wyalong 1:100 000 sheet area.|Sandstone, siltstone, chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Sandgate Formation|77588|Sandgate Seam|16595|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Hexham Subgroup|25055|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Coal dull and bright with shaley laminations, light brown to brown soft claystone with carbonaceous tracings, interbedded dark grey mudstone with light grey fine-grained sandstone|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Sandgate Member, Lower|82562|Sandgate Seam Lower|16593|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Sandgate Formation|77588|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dark brown to black dull coal with subordinate bright black bands, minor carbonaceous shale laminations, and minor brown claystone bands (soft and puggy).|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Sandgate Member, Upper|82563|Sandgate Seam Upper|16594|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Sandgate Formation|77588|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull coal with subordinate bright bands, black carbonaceous shale with coal laminations, brown soft waxy fissile claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Sandgate Seam Lower|16593|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|42182|||||||||||N||17-JAN-23
Sandhills Creek Limestone Member|16597|||||Yes|Member, phase|Formal|Resvd name published|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock||||||200|NSW|Yes|31411||Felton E.A.||Bryan, J.H.|27-OCT-75||Massive and bedded fossiliferous biomicrite; microcrystalline dolomite; occasional calcarenite and calcareous shale.|carbonate sedimentary rock|||N||17-JAN-23
Sandmount sand|16599|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||||||N||17-JAN-23
Sandon Association|67995|Sandon Association""|16600|||Yes|Supergroup|Invalid|Variation of published name|Briefly described|||||Mississippian||||deposition|Upper Devonian||||||||No|61003||||||To replace "Sandon Association". (NSWGS). Invalid name. Includes Sandon beds.|Lithic (meta-)wacke, slate, phyllite, chert, jasper, amphibolite, metabasalt. Greywacke, sandstone, siltstone, mudstone and paraconglomerate.||||N||08-SEP-23
Sandon beds|28301|Sandon Beds|27562|||Yes|Formation, beds|Informal|Unknown or process pending|Fully described|Sandon Association|67995|||Mississippian||||deposition|Upper Devonian||||||||No|35020||||||In Central Block and Woodsreef Melange. Part of the "Sandon Association".|Low-grade, regionally metamorphosed, multiply deformed lithic wacke, paraconglomerate, siltstone, mudstone, minor chert, jasper, spillite.|metasedimentary siliciclastic rock|metamorphosed basic igneous rock|accretionary wedge|N||17-JAN-23
Sandon beds, Lochaber Greywacke, Oxley Metamorphics, Wybeena Metamorphics|42299|||||Yes|Group, Suite|Informal|Variation of published name|Not recorded|Sandon Association|67995|||Mississippian||||deposition|Upper Devonian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Low grade regionally metamorphosed, multiply deformed lithic wacke, paraconglomerate, siltstone, mudstone, chert, jasper and minor basalt plus Permian volcanics|siliciclastic sedimentary rock|||N||17-JAN-23
Sandy Camp Monzogranite|76967|Sandy Camp Adamellite|16608|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Dalgety Suite|5143|Pridoli|||inferred|intrusion|Llandovery|||inferred|||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Used in GSNSW seamless geology dataset 2021.|Cordierite biotite monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Sandy Creek Monzogranite|82655|Sandy Creek Syenogranite|68867|||Yes|Formation, beds|Formal|Variation of published name|Described|||Stanthorpe Supersuite|73988|Lower Triassic||||magmatic crystallisation|Lopingian|251.6|2.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Assigned to the Surface Hill Suite in 2017, but only the Stanthorpe Supersuite in 2021.|Phenocryst-poor, fine- to coarse-grained, seriate to weakly porphyritic, leucocratic biotite-hornblende monzogranite-syenogranite. Comprises three variants ("zones"); detailed. I-type.|acid intrusive rock|||Y|I-type|22-AUG-23
Sandy Flat Leucomonzogranite|82537|Sandy Flat Monzogranite|38273|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Kingsgate Supersuite|82127|Lopingian|||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|253.6|1.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|Pink, coarse-grained, even-textured, biotite-(+/- hornblende) leucomonzogranite. I-type.|acid intrusive rock|||Y|I-type|21-AUG-23
Sapling Flat Igneous Complex|26134|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Devonian|||||Silurian|||||||NSW|Yes|32820|36413|Richardson S.J.||Hawke, J.|20-FEB-79||||||Y||17-JAN-23
Sara beds|16624|Sara Beds|28174|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Permian|||||Permian||||||||No|42866|||||||Undifferentiated metasediments: foliated metaclaystone, metasiltstone, and lithic wacke, minor orthoconglomerate, rare chert, metabasalt and felsic volcanics; includes unmapped inliers of ?Permian sediments within ?Carboniferous metasediments|metasedimentary siliciclastic rock|||N||17-JAN-23
Sarona Downs Tuff Member|16630|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baledmund Formation|954|||Lower Devonian||||eruption|Lower Devonian||||||250|NSW|No|35287|39618|||||Lith desc from GSNSW seamless geology 2023.|Rhyolitic crystal-lithic and vitric tuff.||||N||10-SEP-23
Sassafras Basalt|83461|Sassafras basalt|25465|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lutetian|44.3|.5|isotopic, K/Ar||Ypresian|50.9|.9|isotopic, K/Ar|||||No|73581||||||Young and McDougall (1985). Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Low potassium (low-K) tholeiitic to transitional olivine phyric basalt.|basic volcanic rock|||N||29-MAR-23
Sassafras basalt|25465|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||eruption|||||||||No|40591||||||Not intended as a formal name - probably relates to Sassafras Creek Formation?||basic volcanic rock|||N||17-JAN-23
Sawmill Tank Siltstone|27652|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Winduck Group|25683|||Pragian||||deposition|Lochkovian||||||500|NSW|No|35925|43032|R.A.Glen|12-APR-79|||Winduck Shelf. Time-transgressive basal and upper boundaries. Contains age-diagnostic brachiopod.|Thinly bedded siltstone, arenite.|siliciclastic sedimentary rock|||N||04-AUG-23
Sawpitt Granite|16649|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Redfern Suite|31535|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Sawtooth Ridge Limestone Member|34600|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Frome Hill Formation|6926|||Lochkovian||||deposition|Ludlow||||||60||No|22842|||||||Bedded, sparsely fossiliferous micrite with interbeds of finely laminated algal micrite and lenses of calcareous and siliceous siltstone. Intercalated lensoidal 'mass-flow' units containing fossil and limestone clasts locally.|sedimentary rock|||N||17-JAN-23
Saxa Shale Member|28989|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Talbragar Formation|17673|||Upper Triassic||||deposition|Upper Triassic|||||||NSW|No|30610|30610|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Saxonvale Claystone Member|77057|Saxonvale Member|23958|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mount Ogilvie Formation|26055|||Permian|||inferred|deposition|Permian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Of Singleton Supergroup. Used in GSNSW seamless geology dataset 2021.|Pale cherty claystone, variable to buff tuffaceous claystone, sporadically grades to silty sandstone|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Saxonvale Member|23958|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Mount Ogilvie Formation|26055|||Late Permian||||deposition|Late Permian|||||||NSW|No|40805|40805|P.Wootton|20-SEP-84|||Within the Jerrys Plains Subgroup. To be replaced by the Saxonvale Claystone Member [June 2012 GSNSW].|||||N||17-JAN-23
Says Hill Quartz-Orthoclase Porphyry|16653|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|38915|||||||||||U||17-JAN-23
Scabben Flat Volcanics|69881|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Mount Fairy Group|26052|||||||eruption|||||||||No|||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).|||||N||17-JAN-23
Scaham Formation|40230|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|38801|||||||||||N||17-JAN-23
Scammels Monzogranite|76968|Scammels Adamellite|16661|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian|385|11|isotopic, K/Ar|intrusion|Pridoli|||inferred|||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|17-JAN-23
Scarborough Sandstone|16663|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lower Triassic||||||||No|43395|||||||Quartz-lithic sandstone, pebbly in parts.|siliciclastic sedimentary rock|||N||19-JUL-23
Schillers Lane Granite|82683|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lochkovian|416.5|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|418.7|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021.|Porphyritic granite containing K-feldspar phenocrysts, plus garnet and orthopyroxene as crystal phases.|acid intrusive rock|||Y|A-type|05-SEP-23
Schneiders Granite|33684|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|24417|24417|Raymond, O.L.|13-SEP-99|||Replaces invalid Cemetery Granite (NSW), in Grenfell 1:100 000 sheet area.  Published in FORBES 1:250 000 Explan Notes (03/32987).|Strongly fractionated, medium grained, pink muscovite granite|acid intrusive rock|||Y||17-JAN-23
Scotch Derry Coal Member|82560|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Scotch Derry Formation|77607|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull and bright-banded coal with sporadic stoney bands; abundant beds of coaly shale and carbonaceous shale.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Scotch Derry Formation|77607|Scotch Derry Seam|25466|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Light grey very fine- to medium-grained sandstone, carbonaceous shale, grey silty mudstone (sporadically carbonaceous), coal: dull and bright with sporadic stoney bands; coaly shale, light brown to brown-grey claystone (some carbonaceous partings)|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Scotts Craig Conglomerate|74760|||||Yes|Formation, beds|Formal|Other new published name|Defined|Walters Range Group|24072|||Pragian|||inferred, underlying unit|deposition|Pragian|||inferred, underlying unit||10|60||No|61964|61964|||||Of Walters Range Group. Marker bed.  Top obscured or faulted. See also misspelt Scotts Graig Conglomerate.|Marker unit of pebbly sandstone to conglomerate; trough cross-bedded with abundant clasts of vein quartz.|siliciclastic sedimentary rock|||N||17-JAN-23
Scotts Head Leucoadamellite|16688|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|38842||||||||acid intrusive rock|||Y||17-JAN-23
Scropes Range Formation|75944|Scopes Range beds|16678|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Mutawintji Group|72958|||Lower Ordovician||||deposition|Late Cambrian||||||||No|66918|66623|Greenfield, J.G. (GSNSW)|17-MAY-11|||Published in the Koonenberry Explanatory Notes, currently being indexed. Spelling of place name and stratigraphic name corrected.|Weakly cleaved white to maroon fluviatile cross-bedded quartz sandstone, grading to shallow marine (increasing glauconite, trace fossils and trilobites); regionally metamorphosed to prehnite-pumpellyite facies. Scree breccia. Red conglomerate, siltstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Scropes Range Formation, Cupala Creek Formation|78745|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Ordovician||||deposition|Cambrian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:2.5 million basement geologyl map, National Maps Project. Scropes Range Formation, Cupala Creek Formation and unnamed late Cambrian-Ordovician sediments. Note: Scropes Range Formation, Mutawintji Group but Cupala Creek Formation, Kayrunnera Group. Neither occur near Qld border.|White to maroon cross-bedded quartz sandstone, regionally metamorphosed to prehnite-pumpellyite facies; olive-grey siltstone, red and grey arenite, basal conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Scrub Mountain Conglomerate Member|16692|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Tangaratta Formation|17776|||Tournaisian||||deposition|Tournaisian|||||||NSW|No|43399|43399|||||Previously of Goonoo Goonoo Mudstone of Crook, 1961.|Polymictic conglomerate with argillaceous matrix and some lithic arenite|siliciclastic sedimentary rock|||N||17-JAN-23
Sea Acres Dolerite|73110|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Triassic||||intrusion|Upper Triassic|240||inferred, intrusive relationship||.15|10|NSW|Yes|63763||Och, D. and Leitch, E.C. (GSNSW)|19-APR-07|||For use on map sheet 9435-2S; nearest town is Port Macquarie. To be published in 2007 series Quarterly Notes- GSNSW. Intrudes Karikeree metadolerite, Nobbys Beach Lamprophyre and Tacking Point Gabbro, but not Town Beach Dolerite or the Rocky Beach Metamorphic Melange (see RefID: 63763).|Mildly altered and little deformed dolerite dykes that transect Watonga Formation, Port Macquarie Serpentinite; calc-alkaline mafic rocks and felsic dykes.|basic intrusive rock|||Y||17-JAN-23
Seaham Formation|16708|Grahamstown Lake Formation|7670|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Kasimovian|305||isotopic, U/Pb-Pb/Pb ion probe|deposition|Serpukhovian|327||isotopic, U/Pb-Pb/Pb ion probe|||600||No|44833|62095|||||The former Seaham Fm. of Sussmilch and David (1920) and Roberts et al (1991) which replaced Grahamstown Lake Fm.  Maximum age is at least 326.4 +/- 2.9 Ma (Elmswood Ignimbrite Member); minimum age less than 305.7 +/- 2.7 Ma (Well Gully Ignimbrite Member) from Roberts et al (2006).|Tillite, varved siltstones, tuff, red and green zeolitic mudstone with dropstones interbedded within thick bedded lithic sandstone and conglomerate.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Seal Rocks Formation|22827|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Carboniferous||||deposition|Carboniferous||||||||No|23157||Skilbeck C.G.|27-APR-81|||Reserved 1981 as Seal Rocks. Reservation lapsed 1988. Requested again by Originator 11-APR-95|||||N||17-JAN-23
Searles Point Formation|83331|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pleistocene|||||Pleistocene||||||||No|73136||||||Lord Howe Island. Prominent at Searles Point and exposed at Hells Gate.|Diagenetically altered calcarenite comprising grains of coralline algae, molluscs, foraminifera, bryozoans, and some volcanic grains with only rare coral. Consists of eolianite units bounded by clay-rich brown and terra rossa palaeosols.|carbonate sedimentary rock|||N||25-JUL-23
Sentry Box Granite|16751|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Burrawinda Suite|69893|Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Formal name not intended in Chappell et al (1991). Formalized on CROOKWELL 1:100 000 sheet (2000).|Medium-coarse grained, generally massive,equigranular to sparsely porphyritic biotite granite with minor aplite veins. High K and medium-high Th response.|acid intrusive rock|||Y||17-JAN-23
Separovitch pegmatite|16753|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39652|||||||||||Y||17-JAN-23
Serpentine Creek Sandstone|16765|Serpentine Creek Beds|16763|||Yes|Formation, beds|Formal|Variation of published name|Described|Jordan River Group|9028|||Wenlock||||deposition|Llandovery||||||200||No|33601|||||||Thick to thin bedded, coarse- to fine-grained sandstone; contains  turbidites; siltstone is laminated and bioturbated; deep marine turbidite fan deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Seven Foot Bed|35101|||||Yes|Bed|Informal|Other new published name|Mentioned|Victoria Tunnel coal seam|35119||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Seventeen Flat Granogabbro|16778|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39409||||||||basic intrusive rock|||Y||17-JAN-23
Severn River Monzogranite|82596|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Severn River Suite|82595|Middle Triassic|||||Lower Triassic|246.9|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Heterogeneous, pink to pinkish grey, moderately porphyritic, medium- to fine-grained (locally quenched), biotite-(hornblende) monzogranite-?syenogranite to leucocratic biotite monzogranite; locally contains miarolitic cavities and pegmatite. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Severn River Suite|82595|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Stanthorpe Supersuite|73988|Middle Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Monzogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Shalimar Granodiorite|82604|Shalimar Tonalite|16792|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Supersuite|67894|Lower Triassic|238.1||||Lopingian|252||isotopic, Sm/Nd model age|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication. Sm/Nd  emplacement age of 265 Ma reported (Hensel HD, McCulloch MT, Chappell BW, 1985), later recalculated to 252 Ma.|Grey, fine- to medium-grained, porphyritic, hornblende-biotite-quartz monzodiorite to quartz-poor granodiorite, with minor monzogranite. I-type.|acid intrusive rock|intermediate intrusive rock||Y|I-type|22-AUG-23
Shallow Lagoon Monzogranite Phase|82434|Shallow Lagoon Monzogranite|82432|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Woodburn Complex|82435|Cisuralian|||||Cisuralian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Massive, biotite (-amphibole) monzogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Shannon Harbour Coal Member|23964|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|37094||F.W.Hanlon|12-FEB-74|||See also the informal Shannon Harbour Seam. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, ash 20% (ad), splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Shannons Flat Granodiorite|16803|Shannons Flat Adamellite|16801|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Shannons Flat Suite|31633|Lower Devonian|413|6|isotopic, Rb/Sr|intrusion|Late Silurian||||||||No|45003||||||This form of the name has come back into current use.|Foliated contaminated granodiorite|acid intrusive rock|||Y||17-JAN-23
Shannons Flat Suite|31633|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Wyangala Supersuite|20701|Lower Devonian||||intrusion|Silurian||||||||No|42726||||||Parent information from Phil Blevin, NSWGS, April 2010.|||||Y||17-JAN-23
Shannonvale Granodiorite|26891|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Permian||||intrusion|Permian||||||||No|30789||||||Grafton 1:250 000 sheet area||acid intrusive rock|||Y||17-JAN-23
Sharoon Granite|79952|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Devonian|||inferred||Cambrian|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Shown in GSNSW seamless geology 2023 as Cambrian to Devonian. Broad eliptical magnetic low possibly representing felsic intrusion.|Felsic intrusion?|acid intrusive rock|||Y||04-SEP-23
Sharpeningstone Conglomerate|26892|||||Yes|Formation, beds|Formal|Other new published name|Defined|Black Range Group|1812|||Lochkovian||||deposition|Lochkovian||||||170||No|31852|||||||Medium-very thickly bedded, poorly sorted, polymictic, pebble to cobble conglomerate to pebbly sandstone interbedded with subordinate mudstone and fine grained, lithic sandstone, especially towards top.|siliciclastic sedimentary rock|||N||17-JAN-23
Shaw Hill Gabbro|32274|Shaw Hill Gabbro""|16811|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Ordovician||||intrusion|Ordovician||||||||No|60078||||||Related to Shaw beds? Lithology description from GSNSW seamless geology 2023.|Gabbro to meta-gabbro with an ophitic to subophitic texture of pale brownish to colourless clinopyroxene partly enclosing random laths of partly sericitized plagioclase. Alteration to chlorite, biotite, actinolite and epidote is common.|basic intrusive rock|||Y||28-SEP-23
Shaw beds|16813|Shaw Beds|16809|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|35118|||||||||||N||17-JAN-23
Shawns Creek Formation|81958|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Crystal, vitric and scoria tuff, crystal vitric breccia, burnt wood-bearing pyroclastic deposits.|acid volcanic rock|||N||17-JAN-23
Sheep Station Creek Complex|28997|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian||||intrusion|Pennsylvanian||||||||No|31806||||||Monzogranite.|Massive and foliated granite, gabbro, granodiorite. Includes a number of apparently unrelated intrusives and plutons of various affinities|acid intrusive rock|foliated metamorphic rock||Y|I-type|17-JAN-23
Shell Hill Formation|70128|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Wana Karnu Group|70131|||Middle Devonian||||deposition|Lower Devonian||||||||No|66918|66623|Sharp, T.|10-MAR-06|||To be used in the Broken Hill Region.|White to buff, poorly-sorted, lightly indurated quartz sandstone, pebbly sandstone, siltstone and conglomerate.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Shepherds Hill Formation|16822|||||Yes|Formation, beds|Formal|Other new published name|Described|Lambton Subgroup|10115|||Permian||||deposition|Permian||||||||No|43447||||||Unrelated to Devonian Shepherds Hill Volcanics (Cobar region). Newcastle area. This name was dropped. Of Lambton Subgroup, Newcastle Coal Measures. Included Nobbys Tuff Member, which was raised to Formation status as Nobbys Tuff in 1999.  Unclear if the rest of the unit became part of Lambton Formation or Adamstown Formation or both. Name reinstated ~2015.|Polymictic conglomerate, sandstone, shale and tuff.|medium-coarse grained siliciclastic rock|igneous volcanic rock||N||03-SEP-23
Shepparton Formation|25474|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wunghnu Group|20670|||Holocene||||deposition|Pliocene|||||50|132|VIC|Yes|70961|42966|Tickell S.J.||Vic SNSC|08-NOV-76|Of Lawrence (1966). Partly equivalent to Parilla Sand. Fluvial and lacustrine sediments including channel sands, levee banks of fine sandy clay and floodplain clays (see refID:60599). Nonmagnetic with dendritic, moderately magnetic responses (10-20 nT); moderate K, variable Th, and U. Geological Survey of Victoria map code: Nws.  Bowler (1967) obtained radio-carbon dates on the upper part of the formation, ranging from 20 900+/-500 years BP to 30 600+/-1300 years BP.  Has nonconformable contact with Crosbie Granite. Yando Clay is a component in Loddon Valley. Geological Province: Murray Basin/Riverine Plain.|Unconsolidated to poorly consolidated mottled variegated clay, silty clay with lenses of polymictic, coarse to fine sand and gravel; partly modified by pedogenesis, includes intercalated red-brown paleosols. Forms extensive flat alluvial floodplains.|regolith|||N||17-JAN-23
Shivering Conglomerate|70025|Cobra Formation|27372|||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Fairy Group|26052|||Ludlow|||inferred, overlying unit|deposition|Wenlock|||biozone|||100|NSW|No|64238||Thomas, O. (GSNSW)|31-JAN-06|||Basal unit of the Mount Fairy Group - in the Kowmung River area. Previously included in the Cobra Formation of Scheibner (1973).|Matrix to clast-supported pebble to boulder conglomerate composed of rounded to angular clasts of grey laminated chert, siltstone, shale and quartzose sandstone, set in a medium-grained lithic-quartz sandstone matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Shoalhaven Group|16844|Upper Marine Series|18921|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Artinskian||||deposition|Sakmarian||||||1000||No|43346|23170|||||Southern Coalfield. See also Lexicon. SI56-9,13.  Interpretation by Tye, Fielding and Jones (1996) includes Yadboro, Burrawang and Tallong Conglomerates, and the Badgerys Breccia in this Group, rather than in the Talaterang Group.|Sandstone, siltstone, shale, polymictic conglomerate, claystone; rare tuff, carbonate, evaporite.|siliciclastic sedimentary rock|||N||17-JAN-23
Shoalwater Formation|16848|||||Yes|Formation, beds|Formal|Other new published name|Defined|Curtis Island Group|5093|||Carboniferous||||deposition|Carboniferous|328.9|2.3|||||QLD|No|38406|31659||||||Quartzose sandstone, mudstone; local quartz-muscovite-biotite schist; strongly foliated metasediments.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock|accretionary wedge|N||17-JAN-23
Shortland Formation|22842|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tomago Coal Measures|18289|||Late Permian||||deposition|Wuchiapingian||||||||No|43017||Preston B.C., K.J.Brown|31-MAY-85|||Reserved May85, no longer required June92, but published 1993.|||||N||17-JAN-23
Showgrounds Sandstone|16860|||||Yes|Formation, beds|Formal|Variation of published name|Described|Clematis Group|4137|||Anisian|||biozone|deposition|Anisian|||biozone|||13||No|43883||||||See also 1984 definition of Showgrounds Formation.  Precise age from Bradshaw et al, 2009.  Denison Trough, Bowen Basin. Hydrocarbon reservoir.|White coarse quartzose sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Shume Formation|16866|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Amphitheatre Group|381|||Lochkovian||||deposition|Pridoli|420.8|1.9||||1800|NSW|No|35287|41528|||||(MacRae 1987).|Massive to parallel-laminated, lesser cross-laminated and minor graded, moderate to well-sorted, medium- to fine-grained, lithic-quartz to quartz-rich sandstone interbedded with siltstone. Minor rhyolitic, crystal to crystal-lithic rich pyroclastics.|siliciclastic sedimentary rock|acid volcanic rock||N||12-OCT-23
Shuttleton Rhyolite Member|16867|Shuttleton Volcanic Member|16868|||Yes|Member, phase|Formal|Other new published name|Defined|Shume Formation|16866|||Pragian||||eruption|Ludfordian|421.9|2.7||||400|NSW|No|41528|41528||||||Felsic volcanics.|acid volcanic rock|||N|S-type|10-AUG-23
Siding Spring Formation|81962|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Scoria- or felsic clast-rich tuffs, volcaniclastic breccia, conglomerate, sandstone and mudstone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Signal Hill Conglomerate Member|16876|Signal Hill Conglomerate|16877|||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Bar Beach Formation|1077|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||This Member dropped in 1999. Formerly of Bar Beach Formation, Lambton Subgroup, Newcastle Coal Measures. Name revived again ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Silurian dolerite 78287|78287|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Dolerite|basic intrusive rock|||Y||17-JAN-23
Silurian gabbro 78288|78288|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Gabbro|basic intrusive rock|||Y||17-JAN-23
Silurian granites 76713|76713|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Pridoli|410|||intrusion|Ludlow|420|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic intrusive rocks.  Range in composition from alkali feldspar granite to tonalite; includes associated rocks such as migmatite and minor gabbro and diorite.|acid intrusive rock|||Y||17-JAN-23
Silurian mafic volcanics 76709|76709|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Wenlock|420|||eruption|Llandovery|427|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly basaltic rocks; may include minor ultramafic volcanics, for example in Archean units.|basic volcanic rock|||N||17-JAN-23
Silurian sedimentary rocks 76714|76714|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Pridoli|410|||deposition|Llandovery|434|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Silurian serpentinites 76712|76712|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Wenlock|425||||Llandovery|427|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Serpentinised ultramafic rocks; includes ophiolites|metamorphosed ultramafic rock|||N||17-JAN-23
Silurian to Devonian felsic volcanics 76710|76710|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|384|||eruption|Ludlow|420|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanics, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Silurian to Devonian sedimentary rocks 76711|76711|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|384|||deposition|Ludlow|420|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Silver City Suite|70121|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||Potosi Supersuite|41392|Statherian|1683|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1704|3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|64944|64097|Stevens, B. (GSNSW)|01-MAR-06|||Formerly mapped in Thackaringa Group - revised as a separate suite comprising Alma, Georges Bore, Stephens Creek, Wondervale Well and Rasp Ridge Granite Gneisses. Age: 1704-1683Ma. (U-Pb) per email W.Cowley to A. Whitaker (Mar08). Formerly mapped in Thackaringa Group - new grouping now erected to accommodate these metamorphosed and deformed granites. Comprise Alma, Georges Bore, Stephens Creek, Wondervale Well and Rasp Ridge Granite Gneisses. All intrude Thackaringa and/or Broken Hill Groups. Geochemically discussed as part of Potosi Supersuite (Wyborn et al , 1997). Type metagranite body is the large Stephens Creek Granite. Gneiss|Metagranite: quartz-feldspar-biotite gneiss with variable garnet, sillimanite and muscovite, even-grained to megacrystic, elongate parallel to enclosing stratigraphy. Occurs as sills.|acid intrusive rock|||Y|S-type|17-JAN-23
Silver Gully Formation|16884|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Tamworth Group|17757|||Eifelian||||deposition|Emsian||||||850||No|43400|43400||||||Volcanogenic breccia and conglomerate, laminated radiolarian argillite, laminated sandstone, siltstone and minor granule conglomerate, feldspatholithic sandstone, tuff, keratophyre; dolerite intrusions; minor basalt, limestone, chert and jasper bands|siliciclastic sedimentary rock||island arc|N||28-AUG-23
Silver King Metadolerites|79118|Silver King Formation|23971|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Purnamoota Subgroup|15683|Lady Louise Suite|35889|Statherian|||||Statherian||||||||No|69999||||||Abundant mafic igneous rocks in the upper Broken Hill Group. Probably intended to replace Silver King Formation.|Basic gneiss from syn-depositional, high-Fe tholeiitic dykes and sills; locally very abundant.|basic volcanic rock|||Y||17-JAN-23
Silverdale Formation|16898|Hume Series|8574|||Yes|Formation, beds|Formal|Other new published name|Redefined|Hattons Corner Group|8145|||Ludlow|||biozone|deposition|Ludlow|||biozone||60.3|164|NSW|No|31852|68592|||||In the Canberra-Yass Shelf. Redefined in 2012 to exclude volcaniclastic units that are now part of underlying Yanawe Formation.|Basal well bedded, semi-nodular, fossiliferous limestone with shale interbeds; shaly mudstone with thin beds of turbiditic siltstone; minor siltstone and calcareous siltstone; topped by biomicrite interbedded with shaly mudstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Silverspur Series|29002|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|48940|||||||||||N||17-JAN-23
Silverwood Group|16903|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Devonian||||deposition|Ludlow||||||||No|44269||||||See also Lexicon. A lot of debate over age range. Min Age: Middle Devonian, Max Age: Late Silurian, pers. comm. Cec Murray, GSQ, 04-NOV-2005.|Intermediate to mafic lava and pyroclastics; subvolcanic metabasite sills; associated volcaniclastic rocks; arenite, conglomerate, mudstone, chert, limestone.|intermediate volcanic rock|medium-coarse grained siliciclastic rock|island arc|N||17-JAN-23
Sinclair Conglomerate Member|25478|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Captains Flat Formation|3563|||Late Silurian||||deposition|Late Silurian||||||130|NSW|Yes|48878|42820||||||Lithic tuff and minor shale and conglomerate.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Singleton Supergroup|16939|Singleton Coal Measures|16934|||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Late Permian||||deposition|Late Permian||||||1500||No|37773||||||The Coalfield Geology Council in 2004 ratified the resolution that this supergroup in the Hunter Valley should now comprise Newcastle Coal Measures, Watts Sandstone and the Wittingham Coal Measures.|Coal seams, claystone, siltstone, sandstone, conglomerate, tuff, shale.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Singorimbah igneous intrusions|81161|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neogene|||inferred||Paleogene|||inferred|||||No|70718||||||Hay 1:250 000 sheet area. No outcrop. Interpreted as Middle Cenozoic as TMI inversion modelling indicates it intrudes Murray Basin sediments. Aeromag. Character: Roughly circular 2-5 km wide anomalies with peak amplitude of approximately 100-600 nT. It is interpreted as a igneous intrusion with an intermediate to mafic volcanic susceptibility. Used in GSNSW seamless geology 2021.|interpreted as a igneous intrusion with an intermediate to mafic volcanic susceptibility.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Skains Hill Granodiorite|29005|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39409||||||||acid intrusive rock|||Y||17-JAN-23
Skeletar Formation|16963|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Greta Coal Measures|7798|||Artinskian||||deposition|Artinskian||||||120||No|43477||||||Proposed that Skeletar Formation and Gyarran Volcanics are combined to form the Dalwood Group (1994).|Rhyolite, chert, and white tuffaceous shale containing glossopteris leaves, coal|acid volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Sloggets Granite|17001|||||Yes|Formation, beds|Formal|Other new published name|Described|||Sloggets Suite|31453|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Oberon area.|Pink, coarse-grained, megacrystic biotite granite|acid intrusive rock|||Y||17-JAN-23
Sloggets Suite|31453|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Bathurst Supersuite|31449|Carboniferous|||||Carboniferous||||||||No|42726||||||Oberon area.|||||Y||17-JAN-23
Sloping Rock Monzogranite|75934|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Pennsylvanian||||intrusion|Pennsylvanian||||||||No|70661||Campbell, L.M., Trigg, S.J. (GSNSW)|11-MAY-11|||To be published: TRIGG S. J. and CAMPBELL L. M. 2010. Moss Vale 1:100 000 Sheet Explanatory Notes. Geological Survey of NSW.|Leucocratic, generally aphyric and medium-grained. Miarolitic cavities are ubiquitous and xenoliths of country rock are abundant locally.|acid intrusive rock|||Y||04-SEP-23
Slowmans Creek Conglomerate|17002|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Lambie Group|10103|||Devonian||||deposition|Devonian||||||285||No|32708||||||Lambie Basin. Now includes the Mount Horrible Conglomerate, Winburndale Member and Bald Hill Conglomerate.|Red, purple, clast-supported oligomictic conglomerate, mudstone, arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Smokey Cape Suite|74024|||||Yes|Group, Suite|Reserved|Reserved|Unpublished||||||||||||||||||No|||Champion, Blevin and Bultitude|10-DEC-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Smoky Cape Syenogranite|82658|Smokey Cape Monzogranite|76969|||Yes|Formation, beds|Formal|Variation of published name|Described|||Coastal Granite Association|82390|Upper Triassic|218.4|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Triassic|218.4|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Spelling correction to match place name. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|White to pink, coarse-grained, equigranular biotite-hornblende syenogranite (three un-named phases described) with a fine-grained, porphyritic margin, and granophyric carapace. A-type.|acid intrusive rock|||Y|A-type|27-AUG-23
Snake Creek Mudstone Member|17026|||||Yes|Member, phase|Formal|Other new published name|Defined|Moolayember Formation|12187|||Middle Triassic||||deposition|Middle Triassic|||||||QLD|No|31369|31369|||||Replaced by Snake Creek Formation briefly? then usage reverted to this name.|Predominantly dark grey to black mudstone with minor laminae and thin beds of very fine grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Snapper Point Formation|17035|Megalong Conglomerate|11619|||Yes|Formation, beds|Formal|Variation of published name|Defined|Conjola Subgroup|4444|||Kungurian||||deposition|Artinskian||||||300|NSW|No|32945|31081|||||Of Shoalhaven Group.|White to yellow quartzose, fine to very coarse-grained sandstone, siltstone, pebbly sandstone, conglomerate. Fossiliferous locally.|medium-coarse grained siliciclastic rock|||N||03-SEP-23
Snapper Point Formation, Wandrawandian Siltstone|42282|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Shoalhaven Group|16844|||Permian||||deposition|Permian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Fine- to medium-grained sandstone, siltstone, wave rippled conglomerate. Fine-grained quartz-lithic silty sandstone and siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Snobs Creek Volcanics|17038|Snobs Creek Formation|17036|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Taggerty Subgroup|17652|||Famennian||||eruption|Famennian|367|22||||||No|43547||||||Age of 368.6+/-2.3Ma, K-Ar and Rb-Sr (Williams et al.1982), given in 1993 paper for Snobs Creek rhyolite.|Volcanics|igneous volcanic rock|||N||17-JAN-23
Snodgrass Monzogranite|77011|Snodgrass Adamellite|26143|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Dalgety Suite|5143|Pridoli|||inferred|intrusion|Silurian|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Snowball Metabasic Igneous Complex|29213|Snowball Metabasic igneous complex|17044|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Silurian|||||Early Silurian||||||||No|37529||H.Basden|19-MAR-80||||Basaltic lavas and tuffs, minor sediments.|basic volcanic rock|||Y||17-JAN-23
Snowy Gap Monzogranite|77002|Snowy Gap Adamellite|25483|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Pridoli|||inferred|intrusion|Llandovery|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Fine- to medium-grained equigranular biotite monzogranite; quartz as polygonal aggregates, K-feldspar as microcline perthite, secondary muscovite aggregates, sporadic inclusions|acid intrusive rock|||Y|S-type|17-JAN-23
Snowy Mountains Volcanics|17050|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Burdigalian|17.7||isotopic, K/Ar|eruption|Chattian|23.7|.7|isotopic, K/Ar|||||No|33221||||||Not a misspelling of Snowy River Volcanics. Used in NSW Seamless 2021.|||||N||17-JAN-23
Snowy River Volcanics|17062|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Emsian|398||palaeomagnetism|deposition|Lochkovian|416||palaeomagnetism|||||No|43384||||||Formerly referred to as Snowy River Porphyries (1876), Snowy River Series (1950). Snowy RIver Volcanics introduced by Ringwood (1955) [RefID 66222] , see Victorian published Lexicon (1966) p271 for more detail. Geological Province: Limestone Creek Graben. Name used interchangeably with Snowy River Volcanic Group. Snowy RIver Volcanics apparently preferred in NSW. Updated from GSNSW seamless geology dataset 2021.|Subaerial volcanics, including rhyolitic lava, porphyry dykes,  sedimentary rocks.|acid volcanic rock|siliciclastic sedimentary rock||N|I-type|17-JAN-23
Snubba Range Gabbro Member|82660|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Nacka Nacka Metabasic Igneous Complex|27052|||Llandovery|||inferred||Llandovery|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Predominantly mid to dark grey, fine- to medium-grained, equigranular to porphyritic, hornblende metagabbro/diorite with local pegmatite patches and dykes; local mingling structures at eastern contact; amphibolite.|metamorphosed basic igneous rock|||Y|I-type|17-JAN-23
Social Bend pluton|83405|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73505||||||Used in RefID 73496 Moore (2005). G658. Nonmagnetic but with magnetic contact aureole to 200 nT where interpreted to include mafic volcanic rocks, elsewhere to 20 nT;  gravity low to 30 micrometres/second/second below the regional. Also included in GSNSW Seamless 2021 as Unassigned Devonian intrusions - social Bend pluton.|Granite. Contact aureole interpreted to include mafic volcanic rocks.|igneous intrusive rock|||Y||01-AUG-23
Sofala Volcanics|17075|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cabonne Group|21409|||Early Silurian|439||isotopic, Ar/Ar|deposition|Upper Ordovician|447|5|isotopic, K/Ar|||2100||No|43384|23170|||||Age: Middle Gisbornian - Late Bolindian - K/Ar date 447 +/- 5Ma.|Mafic volcanic sandstone,  basalt to andesite flows and sills, mudstone, radiolarian chert, basaltic conglomerate.|medium-coarse grained siliciclastic rock|basic volcanic rock||N||17-JAN-23
Soho Street Amphibolite|17078|||||Yes|Formation, beds|Formal|Other new published name|Described|Cooma Metamorphic Complex|4572|||Lower Devonian|||||Late Silurian||||||50||No|49705||||||K/Ar dated at 410+/-12 Ma. Ar/Ar dated at 407+/-2 ma. These considered minimum ages.|||||N||17-JAN-23
Soldiers Quarry Member|80313|||||Yes|Member, phase|Formal|Resvd name published|Mentioned|Budginigi Ignimbrite|80312|||Lower Devonian|||||Lower Devonian||||||||No|72528||Bull, K., Gilmore, P. (GSNSW)|17-NOV-17|||East Riverina Project. Subaerial. Felsic lavas and subvolcanic intrusions. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Lithology description from GSNSW seamless geology 2023.|K-feldspar megacrystic, porphyritic coherent rhyolite to rhyodacite. Interpreted as a high-level, subvolcanic intrusion or a thick lava.||||N||28-SEP-23
Solitary Hill Granite|23979|||||Yes|Formation, beds|Informal|Resvd name published|Fully described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD in Chappell et al (1991), but formal name not intended.|Arfvedsonite-aegirine granite|acid intrusive rock|||Y||17-JAN-23
Sooley Volcanic Member|70456|Sooley Volcanics|36146|||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow|||inferred, overlying unit|eruption|Wenlock|||inferred, underlying unit|||800|NSW|No|64238||Scott, M. (GSNSW)|24-MAY-06|||To be used in the GOULBURN 1:250K mapping project. Status downgraded from the original Sooley Volcanics (May/06). Part of the Mount Fairy Group.|Grey, massive, crystal-poor, rhyolitic volcanic sandstone interbedded with fine- to v. coarse-gr.rhyolitic volcaniclastic sandstone, siltstone+ mudstone; grey to pale green fine- to medium-gr. feldspar-phyric quartz andesite.|siliciclastic sedimentary rock|||N||17-JAN-23
Sorronto Granite|30524|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Yeoval Suite|31486|Emsian||||intrusion|Lochkovian||||||||No|23043||Scott M., Wyborn D.|25-SEP-96|||Wellington 1:100 000 sheet area. Yeoval Batholith. Description provided to Central Register 11May98.|Pink to grey fine- to medium-grained biotite granite and biotite-hornblende granite|acid intrusive rock|||Y||17-JAN-23
Sounder Limestone|17107|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34692||||||||carbonate sedimentary rock|||N||17-JAN-23
Sourges Shale|17108|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cudal Group|4974|||Early Silurian||||deposition|Eastonian||||||850|NSW|No|32485|23170|||||Shown as part of Cudal Group in RefID 70297 (2011). Molong¿Wellington Volcanic Belt.|Well-bedded buff to pale grey shale, siltstone and fine-grained sandstone; minor tuffaceous sandstone|fine grained siliciclastic rock|||N||17-JAN-23
South Brother Microgranite|82512|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||The Brothers Suite|77628|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021, 2023 and 2017 publication.|(Perthitic alkali-feldspar)-porphyritic, riebeckite microgranite. Characterised by marked secondary alteration. A-type.|acid intrusive rock|||Y|A-type|27-AUG-23
South Casino Gravel|34757|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|22892|||||||||||N||17-JAN-23
South Coast Volcanics|83458|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Chattian|26.6|.5|isotopic, K/Ar||Rupelian|31.8|.5|isotopic, K/Ar|||||No||||||| Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset. Said to be of South Coast Volcanic Complex (invalid name), Cenozoic Igneous Province.|Olivine phyric tholeiitic basalt with common ophitic clinopyroxene crystals exceeding 1 mm in size, abundant plagioclase groundmass with Ti-Fe oxides.|basic volcanic rock|||N||17-JAN-23
South Fassifern Coal|17114|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34270||||||||organic rich sedimentary rock|||N||17-JAN-23
Southern Highlands Province - dolerite 83832|83832|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||inferred||Cenozoic|||inferred|||||No|||||||Probably GSNSW seamless geology unit 'Ungrouped Cenozoic igneous units - alkaline dolerite' CZuc_a. Used in Cenozoic layer of Geoscience Australia's Alkaline Rocks dataset.|Alkaline dolerite necks, dykes.|foid-bearing intrusive rock|||Y||27-APR-23
Southern Highlands Volcanics|83460|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Priabonian|37.4||isotopic, K/Ar||Ypresian|55.4||isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset. Said to be of Southern Highlands Volcanic Complex (invalid name).|High potassium (high-K) undersaturated to low K- saturated basaltic flows with common mantle xenoliths.|basic volcanic rock|||N||17-JAN-23
Southern Limestone|29012|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41863||||||Description of  distribution, not a stratigraphic unit.||carbonate sedimentary rock|||N||17-JAN-23
Spa Creek Siltstone|23982|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||||||deposition|||||||60||No|42567||Nott J.|30-AUG-90||||Well-sorted, organic-rich, purple-brown silts and localised patches of sand: very well laminated silts, rarely horizontal. Contains well-preserved microfloral assemblage.|siliciclastic sedimentary rock|||N||17-JAN-23
Specimen Hill Gabbroic Diorite|22872|Specimen Hill Gabbro|17147|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Wallundry Suite|29582|Llandovery|||inferred, geological correlation|intrusion|Llandovery|||inferred, geological correlation|||||No|22638||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD as Specimen Hill Gabbro in Chappell et al (1991).|Gabbroic diorite, noritic gabbro, quartz-hornblende diorite|basic intrusive rock|||Y||17-JAN-23
Speldon Formation|23984|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Gloucester Coal Measures|7452|||Late Permian||||deposition|Late Permian||||||80||No|40872|44244|M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Well-bedded pebbly sandstone, bioturbated mudstone, pebble conglomerate, coarse lithic sandstone.|siliciclastic sedimentary rock||extensional continental backarc|N||03-SEP-23
Spicers Creek Granodiorite|32268|Spicers Creek Adamellite|26325|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|60078||||||See also Spicers Creek Granite. Lithology description from GSNSW seamless geology 2023.|Monzogranite to grandiorite composition.|acid intrusive rock|||Y||28-SEP-23
Spion Kop Conglomerate|17167|||||Yes|Formation, beds|Formal|Other new published name|Defined|Currangandi Group|38099|||Serpukhovian||||deposition|Visean||||||550||No|43435|43435||||||Lenses of massive orthoconglomerate, minor paraconglomerate with thin sandstone lenses.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Spion Kop Conglomerate, Ermelo Pyroclastics|68908|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Currangandi Group|38099|||Namurian||||deposition|Namurian||||||||No|||Ollie Raymond||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project|Cobble sized fluvial orthoconglomerate, subordinate wacke and siltstone. Coarse grained dacitic, crystal vitric tuff, crystal rich sandstone and boulder conglomerate; many lithologies are extensively zeolitised|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Spire Trachyte Member|81950|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Naman Formation|81948|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Flow-foliated, porphyritic, fine-grained, aegerine-augite trachyte forming blocky outcrop, well developed columnar jointing.|intermediate volcanic rock|||N||17-JAN-23
Spirifer yassensis Limestone Member|17173|||||Yes|Member, phase|Formal|Variation of published name|Defined|Taemas Limestone|17642|||Lower Devonian||||deposition|Lower Devonian||||||120|NSW|No|32483||||||Originally Spirifer yassensis Limestone of Browne (1959). Correct palaeontological nomenclature requires generic/species names in following format: Spirifer yassensis Limestone Member, although the name appears as Spirifer Yassensis Limestone Member in the literature also. Part of the Murrumbidgee Group.|Fossiliferous thinly bedded limestone, shaly limestone.|carbonate sedimentary rock|||N||17-JAN-23
Splinter Creek Formation|17179|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Visean||||deposition|Visean||||||||No|44360|44360|||||The section regarded as typical for the lower part of this formation occurs in Portion 12, Parish New Cannindah whereas the type section for the upper part occurs along the north bank of Cannindah Creek in Portions 27 and 72, Parish Cannindah.|Brown mudstone, dark green and red-brown, very calcareous subgraywacke and polymictic conglomerate, oolitic, detrital and lutaceous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock|forearc|N||17-JAN-23
Spring Creek Granodiorite|17190|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|41898||||||||acid intrusive rock|||Y||17-JAN-23
Spring Creek Pegmatite|17194|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|40328||||||Cooma 1:100 000 sheet area|||||Y||17-JAN-23
Spring Road Granite|26906|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Whick Whack Suite|69869|Pridoli||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Wyangala Batholith. Formal name not intended in Chappell et al (1991).  Formalized on CROOKWELL  1:100 000 sheet (2000). Stated to be of the Whick Whack Suite on GOULBURN 1:250K provisional (2008) map sheet.|Medium-coarse grained, foliated-protomylonitic, equigranular-porphyritic, hornblende biotite granite and leucogranite; low-medium K and Th, low U response and low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Spring Road Suite|31634|||||Yes|Group, Suite|Informal|Other new published name|Briefly described||||||||||||||||||No|42726||||||Briefly described. Formal name not intended.|||||Y||17-JAN-23
Spring Valley Granite|17198|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34544||||||Lake George area.||acid intrusive rock|||Y||17-JAN-23
Springbok Sandstone|17205|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Injune Creek Group|8710|||Kimmeridgian||||deposition|Oxfordian||||||275|QLD|No|44171|45110|||||Formerly Springbok Sandstone Lens, Springbok Sandstone Member. Aquifer: generally artesian. Type section in  BMR Mitchell 3.|Clayey lithic sublabile to very lithic sandstone; calcareous in part; interbedded with carbonaceous mudstone and siltstone.|siliciclastic sedimentary rock||intracratonic|N||31-JUL-23
Springbrook Rhyolite|17206|Springbrook rhyolite|17208|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Neogene||||eruption|Cenozoic||||||||No|40623|||||||Rhyolite|acid volcanic rock|||N||29-MAR-23
Springfield Coal Member|77388|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Trinkey Formation|18599|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||See also Springfield Seam. Used in GSNSW Seamless 2021.|Coal, internally characterised by a dulling-up profile, basal section is 100% bright plies, sporadic thinly bedded carbonaceous claystoone and tuffaceous claystone|organic rich sedimentary rock|||N||17-JAN-23
Springfield Seam|77252|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Trinkey Formation|18599|||Late Permian|||||Late Permian||||||||No|43194||||||Related to Springfield Coal Member, NSW. Not to be confused with Springfield Sandstone (unit no. 26146) in Victoria.|Interbanded stony coal and tuff.|organic rich sedimentary rock|||N||17-JAN-23
Springponds Tonalite|77044|Springponds Granodiorite|24500|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Arthursleigh Suite|31547|Lower Devonian||||intrusion|Lower Devonian||||||||No|68592||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards. See previous name for definition.|Greenish-grey, massive, equigranular to weakly porphyritic, medium-grained pyroxene-hornblende-biotite tonalite. High magnetic susceptibility|acid intrusive rock|||Y||26-SEP-23
Sprys Tank Granite|79857|Mine Granite|11890|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||Koetong Suite|9703|Ludlow||||magmatic crystallisation|Wenlock|428.1|2.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72083||Trigg, S. (GSNSW)|13-JUN-17|||This is a new name for the Mine Granite from the Ardlethan mine area. This has been done because the Mine Granite lacks a distinct geographical name and the name is misleading since the pluton is only a passive host of the mineralised breccia pipes. See Bodorkos et al. (2013)  [RefID 69043] for SHRIMP U/Pb age. Previously thought to belong to Koetong Supersuite. An earlier age determination was a muscovite whole-rock Rb-Sr age of 417 +/- 2.5 Ma (Richards et al., 1982).|Grey, massive to weakly?foliated, medium- to (locally) coarse-grained, equigranular biotite granite with accessory cordierite and sparse K-feldspar megacrysts. Contains biotite-rich xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Square Head Formation|33859|Square Head beds|33860|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Bootheragandra Group|42361|||Lochkovian||||deposition|Lochkovian||||||||No|22508||||||Within the Cobar Supergroup.|Comprises several conglomeratic and quartz sandstone unnamed units; pebbly arenite, lithic arenite, conglomerate and cobble conglomerate. Contains brachiopods.|siliciclastic sedimentary rock|||N||17-JAN-23
Square Top Intrusion|83199|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Royal Volcanics|83198|||Lutetian|45.5||inferred, geological correlation|intrusion|Selandian|60.4||inferred, geological correlation|||||No|||||||Used in GSNSW seamless geology dataset 2021. A single K-Ar age of 60.0 +/- 2.0 is regarded as a 'reliable minimum age' by the authors [ who are not named in the Seamless]. Age is 59 Ma (Wilkinson and McDougall, 1967).|Analcime-olivine theralite.|foid-bearing intrusive rock|||Y||17-JAN-23
Stafford Coal Member|17234|Stafford Coal|38233|||Yes|Member, phase|Formal|Other new published name|Fully described|Charlton Formation|3925|||Late Permian||||deposition|Late Permian||||||||No|29942||||||See also Stafford Coal.||organic rich sedimentary rock|||N||17-JAN-23
Standbye Monzogranite|41072|Standbye Adamellite|29018|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Stanthorpe Suite|17277|Lower Triassic||||intrusion|Late Permian||||||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Previously in the Moonbi Supersuite - now in Stanthorpe Suite of the Stanthorpe Supersuite.|Coarsely porphyritic hornblende-biotite monzogranite with inequigranular groundmass|acid intrusive rock|||Y|I-type|17-JAN-23
Stanthorpe Granite|17274|Stanthorpe Adamellite|17272|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Stanthorpe Suite|17277|Middle Triassic|240.2||isotopic, Rb/Sr|intrusion|Lower Triassic|248.7|1.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|44068||||||Name reverted to Stanthorpe Granite, on 2007 GSQ maps, after a brief period as Stanthorpe Monzogranite. In Geology of Queensland 2013, p456,461. Together with the Ruby Creek Leucogranite forms the Ruby Creek Sn-W district.|Monzogranite to syenogranite.|acid intrusive rock||continental margin arc|Y|I-type|18-AUG-23
Stanthorpe Granite 1|73853|Stanthorpe Monzogranite 1|41572|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Stanthorpe Granite|17274|||Lower Triassic||||intrusion|Lower Triassic||||||||No|||||||Informal subdivision of the Stanthorpe Granite to be used on the Queensland 1:1million geological map 2nd edition, National Maps Project.  Previously may have been mapped as Rgst/a,/a?,/c, /c?,  Rlsu/1. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Pink, medium-grained, slightly to moderately porphyritic (fluorite-muscovite-allanite-hornblende-titanite-opaque oxides) biotite monzogranite to syenogranite; rare miarolitic cavities|acid intrusive rock|||Y||17-JAN-23
Stanthorpe Granite 2|73855|Stanthorpe Monzogranite 2|41573|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Stanthorpe Granite|17274|||Lower Triassic||||intrusion|Lower Triassic||||||||No|||||||Informal subdivision of the Stanthorpe Monzogranite to be used on the Queensland 1:1million geological map 2nd edition, National Maps Project.  Previously may have been mapped as Rgst/b. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Pale pink to pale brown, medium grained, coarsely porphyritic (allanite-muscovite) biotite monzogranite to syenogranite|acid intrusive rock|||Y||17-JAN-23
Stanthorpe Granite 3|73856|Stanthorpe Monzogranite 3|41574|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Stanthorpe Granite|17274|||Lower Triassic||||intrusion|Lower Triassic||||||||No|||||||Informal subdivision of the Stanthorpe Monzogranite to be used on the Queensland 1:1million 2nd edition geological map, National Maps Project.  Previously may have been mapped as Rgst, Rlsu/3,/4,/7,/8. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Medium to coarse, porphyritic to even-grained leucogranite, microgranite and quartz-feldspar porphyry|acid intrusive rock|||Y||17-JAN-23
Stanthorpe Granite 5|73858|Stanthorpe Monzogranite 5|41576|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Stanthorpe Granite|17274|||Lower Triassic||||intrusion|Lower Triassic||||||||No|||||||Informal subdivision of the Stanthorpe Monzogranite to be used on the Queensland 1:1million 2nd edition geological map, National Maps Project.  Previously may have been mapped as Rlsu/2, Rlsu/2?. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Pale pink to greyish pink, medium to fine grained, uneven grained to moderately  porphyritic hornblende-biotite and biotite monzogranite to syenogranite|acid intrusive rock|||Y||17-JAN-23
Stanthorpe Granite 6|73859|Stanthorpe Monzogranite 6|41577|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Stanthorpe Granite|17274|||Lower Triassic||||intrusion|Lower Triassic||||||||No|||||||Informal subdivision of the Stanthorpe Monzogranite to be used on the Queensland 1:1million 2nd edition geological map, National Maps Project.  Previously may have been mapped as Rlsu/5,/6. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Pale pink to greyish pink, medium to fine grained, uneven grained to moderately  porphyritic hornblende-biotite biotite monzogranite to syenogranite cut by numerous fine- to medium-grained dykes|acid intrusive rock|||Y||17-JAN-23
Stanthorpe Suite|17277|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Stanthorpe Supersuite|73988|Lower Triassic|||||Permian||||||||No|38839||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. This name may be obsolete. Used in 2017. Not used in GSNSW seamless geology dataset 2021.|||||Y||17-JAN-23
Stanthorpe Supersuite|73988|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Lower Triassic|237||inferred||Permian|254||inferred|||||No|63748||||||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007. Also used in GSNSW seamless geology dataset 2021 and 2017 publication.|||||Y||17-JAN-23
Stanton Rock Monzogranite|77022|Stanton Rock Adamellite|32185|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Medium-grained felsic monzogranite|acid intrusive rock|||Y|S-type|29-SEP-23
Stanton Rock Suite|31637|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Lower Devonian|||||Late Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Stanwell Park Claystone|17285|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lower Triassic||||||||No|43342|||||||Red, green and grey shale and quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Starvation Point Monzogranite|76999|Starvation Point Adamellite|24503|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Age from Kosciusko map data. Used in GSNSW seamless geology dataset 2021, where said to be Silurian age.|Monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
State Circle Shale|17298|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Llandovery||||deposition|Llandovery|||biozone|||113|ACT|Yes|43385|42820|Abell, R.S. (after Opik 1958)|26-OCT-90|Brakel, A.|26-OCT-90|BMR Bulletin 233.|Shale, mudstone, siltstone and minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
State Circle Shale, Black Mountain Sandstone|42289|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Early Silurian||||deposition|Early Silurian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Shale, mudstone, siltstone and minor sandstone; Sandstone, siltstone and minor shale|siliciclastic sedimentary rock|||N||17-JAN-23
State Mine Creek Formation|25699|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Late Permian||||deposition|Late Permian|||||5|31.5|NSW|Yes|38614|40806|C.Bembrick|19-JUN-80|Russell, T.|13-JUL-83|Western Coalfield of Sydney Basin. Formerly part of Charbon Sub-Group.|Claystone, mudstone, siltstone; thin coal; minor sandstone and coal seams; common worm burrows and plant remains.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Steamers Trachyte Member|17312|Steamers Trachyte|17314|||Yes|Member, phase|Informal|Variation of published name|Mentioned|Governors Chair Volcanics|23634|||Chattian|24.1|.5|isotopic, K/Ar|eruption|Chattian|25.6||inferred, lithostratigraphic correlation|||||No|48917||||||Variation on defined name. Used in GA alkaline rocks dataset. See also Steamers Trachyte.  Misspelt in GSNSW seamless geology dataset 2021 as Streamers Trachyte Member.|Two-feldspar trachyte with ferroaugite, altered olivine and Ti-Fe oxides.|intermediate volcanic rock|||N||17-JAN-23
Stephens Creek Granite Gneiss|70114|Stephens Creek quartzofeldspathic gneiss|17322|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Silver City Suite|70121|Statherian|1686|4|isotopic, U/Pb||Statherian|1689|5|isotopic, U/Pb||||NSW|Yes|64944|64097|Stevens, B. (NSWGS)|01-MAR-06|||Geological province: Broken Hill Domain.|Zoned granite gneiss body. Quartz-feldspar-biotite +/- sillimanite gneiss. K-feldspar megacrysts abundant in the middle parts, decreasing to few megacrysts in the upper parts.|high grade metamorphic rock|||Y||28-AUG-23
Stevens Tank Granite|79953|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Used in GSNSW seamless geology 2023. Zoned intrusion, presumably identified from geophysics.|Granitoid intrusion showing zonation in magnetic reponse.|acid intrusive rock|||Y||29-SEP-23
Stewartsfield Granodiorite|17329|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Clear Range Suite|31567|Silurian||||intrusion|Silurian||||||||No|31580||||||See also Stewartsfield Adamellite. Lithology description from GSNSW seamless geology 2023.|Granodiorite, granite.|acid intrusive rock|||Y||28-SEP-23
Stockinbingal Formation|24505|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian||||deposition|Lower Devonian||||||1000|NSW|Yes|35608|35609|K.R.Fitzpatrick, B.L.Schmidt|12-NOV-75|Hawke, J.|20-FEB-79|Thought to be equivalent to the Bethungra Formation|Dacite, rhyolite, siltstone and sandstone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Stockinbingal and Bethungra Formations|32522|Stockinbingal Formation|24505|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|44192||||||Informal combination of units used on Cootamundra & Wagga 1:250 000 metalloginic & geological sheets.||acid volcanic rock|||N||17-JAN-23
Stockrington Tuff Member|39829|Stockrington Tuff|17345|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Tickhole Formation|27913|||Lopingian||||eruption|Lopingian||||||||No|68711||||||Formerly of Tickhole Formation, Adamstown Subgroup, Newcastle Coal Measures. This Member dropped in 1999. See also Stockrington Tuff, used in 2003. Name appears to have been reinstated as a member of the Adamstown Formation. See also Stockrington Tuff, used in 2003, Stockrington tuff, used 2006. Updated from GSNSW seamless geology dataset 2021.|Tuff, tuffaceous claystone.|igneous volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Stockyard latite|17355|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Middle Triassic|238|6||eruption|Lopingian||||||||No|37253||||||NOT used in GSNSW seamless geology datasets 2021-2023, but used in GA alkaline rocks report. Available dates are Mid-Triassic from Facer and Carr 1979. Age range extended  in GA alkaline rocks report to include the possibility that these rocks overlap with the alkaline shoshonitic of the Gerringong Volcanics.|Fine-grained, porphyritic basaltic trachyandesite. Alkaline on TAS diagram.||||N||07-JUN-23
Stokefield Metagabbro|17356|Stokefield Diorite|24506|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Ordovician||||intrusion|Middle Ordovician||||||||No|49794|23214|||||Originally named Stokefield Diorite and included in the Carcoar Granite (now Carcoar Granodiorite).  Intrudes Coombing Formation of Kenilworth Group. Intruded by the Carcoar Granodiorite. Blayney area.|Foliated plagioclase-phyric metagabbro|metamorphosed basic igneous rock|||Y||17-JAN-23
Stone Boat Hill Granite|22896|Katunga Granite|9339|||Yes|Formation, beds|Formal|Resvd name published|Described|Narraburra Complex|69150|Barmedman Suite|31550|Famennian|365|4|isotopic, Rb/Sr|intrusion|Famennian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.  Age and parent deduced from Wormald et al, 2004, AJES, v51, p372.|Hornblende-biotite granite|acid intrusive rock|||Y||17-JAN-23
Stones Tank Tuff Member|27235|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Amphitheatre Group|381|||Lochkovian|421.7|2.1||eruption|Ludlow|421.7|2.1|||||NSW|No|35287|39618|||||Defined as part of of Mouramba Formation.Reassigned in unpublished 1985 Canbelego 8134 special (only SW part of sheet), to lower Amphitheatre Group (Cobar Supergroup).|Felsic tuffs and minor rhyolitic lavas. Laminated and welded rhyodacitic crystal and crystal-vitric tuff and minor flow-banded, pyritic, vughy, porphyritic rhyolite.Interbedded turffaceous arenite and siltstone.|acid volcanic rock|siliciclastic sedimentary rock||N||12-OCT-23
Stoney Pinch Formation|22898|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021. Part of the Singleton Supergroup.|Light grey very fine- to fine-grained lithic sandstone, abundant bioturbation with fossil shell fragments; dark grey and grey laminated shale, grey and dark grey siltstone with sandy phases, green-grey and brown claystone, basal pebble conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Stony Creek Coal Measures|17372|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40963||||||||organic rich sedimentary rock|||N||17-JAN-23
Stratford Coal Member|17401|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|37094||||||This name revived by GSNSW 14-JUN-2012. Different unit to Stratfrod Coal Measures.|Coal: Typically high volatile, ash 8-13% (raw), seam ranges from 2-3m in Vickery area, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Strathaird Formation|17403|||||Yes|Formation, beds|Formal|Other new published name|Defined|Lambie Group|10103|||Frasnian||||deposition|Emsian||||||240||No|29993||||||Now includes some of the old Wiarborough Formation, although most of the old Wiarborough Formation is included in Cowpers Creek Conglomerate (Goulburn 1:250000 Explanatory Notes (Thomas & Pogson 2012)).|Fine-coarse grained, thin-thickly bedded, moderately-well sorted, quartzose and lithic-quartz sandstone, pebbly-conglomeratic with interbedded mudstone and siltstone. Basal, thickly bedded, poorly sorted, cobble-boulder, polymictic conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Strathaven Monzogranite|82634|Strathaven Complex|77608|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Sailor Jack Supersuite|82412|Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pale grey to pale pinkish-grey, fine-grained, moderately porphyritic hornblende-biotite monzogranite to ?granodiorite. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Strathbogie Granite|17408|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Strathbogie Suite|25496|Upper Devonian|362|4|isotopic, K/Ar|intrusion|Upper Devonian|374|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|70933|61185|||||Same as Strathbogie Adamellite? See also Strathbogie Granodiorite. Age:365.3Ma, 365.6Ma Rb/Sr. Previously of Strathbogie Igneous Complex [RefID 61185, 1997). In 2010 the Trawool Granite and Kelvin View Granite names were dropped and the granite incorporated into the Strathbogie Granite.|Non-magnetic, S-type biotite cordierite granite; textural and lithological variations include fine grained, cordierite-rich granite, medium grained granite with minor cordierite, and coarse grained tourmaline rich granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Strathgled Formation|31295|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Toongi Group|26178|||Silurian||||deposition|Silurian||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Strathmore Formation|17417|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|29942||||||Formerly of Horseshoe Creek Subgroup (2002). Updated from GSNSW seamless geology dataset 2021. Now of Adamstown Subgroup.|A dominantly shaly sequence, richly carbonaceous, with minor claystone and sandstone beds occurring between two thick and distinctive coal sequences.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Streamville Granodiorite|22906|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Gunning Suite|31580|Pridoli||||intrusion|Ludlow||||||||No|22679||Close R., Henderson G.A.M.|06-JUN-77|||Card. BD as Streamville Granite in Chappell et al (1991). Reverts to Streamville Granodiorite in Bathurst 1:250 000 map notes. Intrudes the Adaminaby Group.  Part of the Wyangala Batholith. Previously of Streamville Suite. Stated to be part of the Gunning Suite on GOULBURN 1:250K map sheet (2008).|Hornblende-biotite granodiorite, felsic granodiorite, fine grained granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Stringy Road Granodiorite|22909|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Xmas Suite|31665|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Beams S., Lewis P.|20-JAN-78|||Card. BD as Stringy Road Granite in Chappell et al (1991), but formal name nto intended.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Stroud Mountain Microgranite|82661|Stroud Mountain porphyry|69374|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pink to grey, porphyritic microgranite.|acid intrusive rock|||Y|I-type|27-AUG-23
Stuckeys Creek Formation|17458|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|31618|||||||||||N||17-JAN-23
Stump Hole Granite|33413|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Milandra Granite|31714|||Lower Devonian||||intrusion|Lower Devonian||||||||No|50628||Wallace D.A.|27-APR-99|||Forbes 1:250 000 sheet area.||acid intrusive rock|||Y||17-JAN-23
Sturts Meadows Siltstone|27576|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Farnell Group|6531|||Ediacaran||||deposition|Ediacaran||||||3270||No|30261|||||||Finely laminated siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Styles Bed|35164|||||Yes|Bed|Informal|Other new published name|Mentioned|Upper Pilot seam|18948||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Sugarloaf Creek Formation|26152|Sugarloaf Creek Tuff|17494|||Yes|Formation, beds|Formal|Variation of published name|Defined|Black Range Group|1812|||Pragian||||deposition|Lochkovian||||||1200|NSW|No|36441|45147||||||Tuff, shale, tuffaceous siltstone, rhyolite, agglomerate; lithic sandstone, siltstone and shale|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Sulcor Limestone Member|29029|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Yarrimie Formation|20896|||Frasnian||||deposition|Givetian||||||120||No|43428||||||Probably includes the Follingtons Limestone. See also Sulcor Limestone.|Massive biohermal coralline limestone, crinoidal, minor calcareous sedimentary rocks.|carbonate sedimentary rock||island arc|N||17-JAN-23
Summit Porphyritic Granodiorite|17517|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|38915||||||||acid intrusive rock|||Y||17-JAN-23
Sun Valley Member|17521|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Hyndmans Creek Formation|21988|||Carboniferous||||deposition|Carboniferous||||||||No|38803||||||Included in Hyndmans Creek Formation - NSWGS Brigalow resource assessment dataset 2001|Siltstone|fine grained siliciclastic rock|||N||17-JAN-23
Sundew Basalt|73708|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Llandovery||||eruption|Llandovery||||||||No|63286|||||||Coarsely phorphyritic basaltic trachyandesite intrusions, also have lower clinopyroxene and higher plagioclase phenocrysts abundances.|basic volcanic rock|||N||17-JAN-23
Sundew Basalt Member|82465|Sundew Basalt|73708|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Forest Reefs Volcanics|6819|||Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Age: Gi1 (Gisbornian) (base) to Bo3 (Bolindian) (top)|Coarsely porphyritic basaltic trachyandesite intrusions, displaying a lower clinopyroxene and higher plagioclase phenocryst abundances.|intermediate volcanic rock|||N||17-JAN-23
Sundown Group|17531|||||Yes|Group, Suite|Formal|Resvd name published|Defined|Willyama Supergroup|20135|||Statherian|1672|7|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1686|6|isotopic|maximum depositional age||1500|NSW|No|38969|39662|W.J.Stroud|17-FEB-82|||Used in Broken Hill area. Olary / Broken Hill Province also Curnamona Province. Different unit from Sundown Volcanic Group of QLD. Various samples give various maximum depositional ages 1788+/-8 Ma, 1672+/-7 Ma (Page et al.2005 p639).|Interbedded pelite, psammopelitic and psammitic metasedimentary rocks.|metasedimentary siliciclastic rock||continental rift|N||17-JAN-23
Sunlight Creek Formation|24002|Sunlight Creek Mudstone Member|26153|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Bendoc Group|1474|||Sandbian|||inferred, biostratigraphic correlation|deposition|Sandbian|||inferred, biostratigraphic correlation|||250||No|41933||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area. Outcrops in Goolengook Road and Wrak thun bairluk belts on MURRUNGOWAR. Geological Survey of Victoria map code: Obs. Originally included in Warbisco Shale by Cas and VandenBerg (1988). Age based on conodonts and graptolites.|Sandstone and mudstone; alternating thin bedded pale grey fine grained sandstone and dark grey green mudstone, black siliceous mudstone, giving a stripey appearance to the quartzitic sandstone beds.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Sunny Ridge beds|25502|Sunny Ridge Beds|17535|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|35118|||||||||||N||17-JAN-23
Sunnyside Suite|31636|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726||||||Blayney - Bathurst region. Silurian.|||||Y||17-JAN-23
Sunset Hills Granite|29827|Neville Granite|23870|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Neville Suite|31618|Late Silurian|378.8|8.5|isotopic, K/Ar|intrusion|Late Silurian|430.1|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|22679||Raymond, O.L.|30-AUG-95|||To replace Neville Granite in the Bathurst 1:250 000 sheet area. Also previously shown as part of the Barry Granodiorite. Intrudes the Adaminaby Group, Coombing Formation and Kangaloolah Volcanics. See also RefID 67060 p505.|Biotite granodiorite, hornblende biotite granodiorite, biotite granite, leucogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Surat Siltstone|17546|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Rolling Downs Group|16267|||Cenomanian||||deposition|Albian||||||150|QLD|No|34613|45110|||||See also probable misspellings: Surat Sandstone, Surat Formation. Type section in GSQ Surat 1.|Siltstone, carbonaceous and pyritic mudstone, some fine glauconitic sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||31-JUL-23
Surface Hill Leucomonzogranite|82656|Surface Hill Syenogranite|68869|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Surface Hill Suite|82657|Middle Triassic|247.8|2.8|isotopic, U/Pb-Pb/Pb ion probe||Lower Triassic|249.7|2.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to coarse-grained biotite leucomonzogranite-leucosyenogranite, strongly porphyritic biotite microgranite, very fine-grained microgranite; locally aplitic and pegmatitic. Locally fine- or very fine-grained. Miarolitic cavities.|acid intrusive rock|||Y|I-type|19-JUL-23
Surface Hill Suite|82657|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Stanthorpe Supersuite|73988|Middle Triassic|||inferred||Lower Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|||||Y||17-JAN-23
Surveyors Creek Formation|22927|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology 2021. Part of the Singleton Supergroup.|Light grey very fine to fine grained sandstone, laminated with either carbonaceous traces or thin shale beds. Abundant bioturbation. Carbonaceous shale and mudstone, siltsone with plant fossil fragments. Thin dull and bright coal bands at base|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Sutchers Creek Formation|29032|||||Yes|Formation, beds|Formal|Other new published name|Defined|Queens Pinch Group|30152|||Emsian||||deposition|Emsian||||||180||No|43461|23170||||||Arenite, mudstone, limestone; corals, brachiopods, conodonts.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Sutcliffe Conglomerate Member|82463|Sutcliffe Conglomerate|17557|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Goonoo Goonoo Mudstone|7573|||Tournaisian|||inferred||Tournaisian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Polymictic orthoconglomerate, siltstone and lithic sandstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||20-JUL-23
Sutton Forest Formation|17560|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34139|||||||||||N||17-JAN-23
Sutton Granodiorite|26154|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Sutton Suite|31639|Lower Devonian||||intrusion|Late Silurian|410|4|isotopic, Rb/Sr||||NSW|Yes|42820|42820||||||Granodiorite, monzogranite and quartz-feldspar porphyry|acid intrusive rock|||Y|I-type|02-JUN-23
Sutton Suite|31639|||||Yes|Group, Suite|Informal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Swains Gully Limestone|17568|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Tournaisian||||deposition|Tournaisian||||||||No|41279||||||||carbonate sedimentary rock|||N||17-JAN-23
Swallow Creek Porphyry|29672|Swallow Keratophyre|29523|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician||||eruption|Ordovician|||||||NSW|No|43642|23214|Wyborn D. for Lachlan NGMA project|05-SEP-95|||Bathurst 1:250 000 sheet area. Formerly Swallow Keratophyre. Intrudes the Weemalla Formation and the Fairbridge Volcanics.|Consists of hornblende andesite.|intermediate intrusive rock|||Y||17-JAN-23
Swamp Creek Member|17571|Swamp Creek Formation|17569|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45147|||||||||||N||17-JAN-23
Swan Brook Granite|82663|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Felsic intrusive.|acid intrusive rock|||Y|I-type|17-JAN-23
Swan Ponds Suite|31527|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Grants Corner Supersuite|31524||||||||||||||No|42726|||||||||||Y||17-JAN-23
Swan Ponds Tonalite|29594|Swan Ponds Granite|17574|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Swan Ponds Suite|31527|Late Silurian||||intrusion|Silurian||||||||No|22679|23214|||||Replaces Swan Ponds Granite in the Bathurst 1:250 000 map notes.|I-type. Consists of xenolith -rich porphyritic hornblende tonalite.|acid intrusive rock|||Y|I-type|17-JAN-23
Swan Ponds Tonalite, Lucan Complex|42007|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Xenolith-rich porphyritic hornblende tonalite; granodiorite, porphyritic tonalite, rhyodacite|acid intrusive rock|||Y||17-JAN-23
Swastika Siltstone|37332|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||||No|61964||Meakin, S.|30-MAY-02|||For use on the CARGELLIGO 1:250 000 sheet area. Tentatively assigned to Cocoparra Group (2005).|Poorly outcropping, highly weathered /eroded. Weathered, ferruginous red-orange brown laminated siltstone, minor fine-grained lithic quartz sandstone; contains distinctive plant fossils.|siliciclastic sedimentary rock|||N||17-JAN-23
Swatchfield Monzonite|26920|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Early Silurian|437|8|isotopic, U/Pb|intrusion|Upper Ordovician|439|8||||||No|42712||||||Lithology description from GSNSW seamless geology 2023.|Monzonite containing altered plagioclase, altered clinopyroxene and apatite with interstitial K-feldspar and minor quartz in some rocks.|intermediate intrusive rock|||Y||28-SEP-23
Sydney Subgroup|17602|||||Yes|Subgroup|Formal|Variation of published name|Fully described|Illawarra Coal Measures|27802|||Permian|||||Late Permian||||||165||No|37065||||||Lith desc added form GSNSW seamless geology 2023.|Quartz-lithic sandstone, siltstone, mudstone, claystone, tuffaceous claystone, carbonaceous claystone, coal, torbanite, minor conglomerate.||||N||03-SEP-23
Sydney Volcanics|83472|||||Yes|Formation, beds|Formal|Other new published name|Described||||||||||||||||||No||||||||Basaltic plugs, dykes, necks, shallow intrusions. 
||||N||17-JAN-23
Tabita Formation|17620|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Pimbilla Tank Group|73404|||Floian|473||biozone|deposition|Floian|475||biozone|||||No|35118||||||Age from palaeontology by Zhen and Percival 2006 (GSNSW).|Poorly-bedded siliceous grey mudstones, overlain by highly fossiliferous limestones grading to dolostones interbedded with olive to grey-green shales and siltstones.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Table Top Diorite|75961|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian||||intrusion|Cisuralian||||||||No|71628||GSNSW stratigraphy review (Blevin, Greenfield, Cameron)|17-MAY-11|||Of Bakers Creek Supersuite, New England Orogen.  Carboniferous? Shown as Early Permian in GSNSW seamless geology 2023.|Microdiorite.||||Y||04-SEP-23
Tablelands Complex|17626|||||Yes|Supergroup|Formal|Structural term|Described|||||Carboniferous|||||Upper Devonian||||||||No|31601||||||Complexly deformed structure consisting largely of Devonian and Carboniferous deep-marine sedimentary rocks, including metabasalt-chert-argillite associations interpreted as part of a Middle-Late Palaeozoic subduction-accretion complex.  Intruded by Hillgrove Suite granitoids at 302Ma. Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|An accretionary wedge of deep-water turbidites.|siliciclastic sedimentary rock|||N||17-JAN-23
Tacking Point Gabbro|72990|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Triassic||||intrusion|Cisuralian|||||||NSW|Yes|62058||Och, D. (GSNSW)|29-MAR-07|||For use on map sheet 9435-2S; nearest town is Port Macquarie. Collective name for dolerite and gabbro emplaced within Watonga Formation, between Tacking Point and Miners Beach. To be published in 2007 series Quarterly Notes/GSNSW.|Coarse-grained, ranging from near-black (melanocratic gabbro) to pale grey (leucocratic gabbro); contains schlieren of pyroxenite, coarse pegmatitic segregations and uncommon narrow aplite dykes.|basic intrusive rock|||Y||02-JUN-23
Taemas Limestone|17642|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrumbidgee Group|27854|||Emsian|||biozone|deposition|Lower Devonian||||||970||No|43344||||||Conodonts in upper part of limestone sequence provide age limit of late Emsian.|Blue-grey, thick to thin, well bedded or massive, commonly richly fossiliferous limestone; minor impure flaggy limestone, calcareous mudstone or shale and tuffaceous sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Taggarts Mountain Ignimbrite Member|17648|||||Yes|Member, phase|Formal|Resvd name published|Described|Currabubula Formation|5055|||Bashkirian|319.3|2.8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Serpukhovian|319.3|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|41800||||||See also Taggarts Mountain Ignimbrite, Taggarts Mountain Member, Taggarts Ignimbrite Member. See RefID 65902 for source of isotopic age (U/Pb SHRIMP using AS3 standard), which also states that this Member is part of both the Currabubula Formation and the Willuri Formation.|Hard, red to beige rhyolitic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Talaterang Group|28268|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Cisuralian|||||Cisuralian|||||||NSW|No|31081|31081||||||Massive to thickly bedded fluvioglacial conglomerate; locally possible tillite, diamictite, varves, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Talbingo Basalt|17665|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Boraig Group|24753|||Lower Devonian||||eruption|Lower Devonian||||||450||No|60086|||||||Andesitic basalt.|basic volcanic rock|||N||17-JAN-23
Talbragar Fossil Fish Bed|17675|||||Yes|Bed|Formal|Unknown or process pending|Fully described|Purlawaugh Formation|15676|||Middle Jurassic|||||Lower Jurassic|151|4.27|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||.6||No|34157||||||Note: protected site (registered as a Crown Land Reserve with permission required for site access).|Light brown laminated cherty siltstone, very fine-grained sandstone interbeds, abundantly fossiliferous (fish and lacustrine plants).||||N||19-JUL-23
Talgarno Schist|17686|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian|||||Ordovician|||||||VIC|Yes|37871||P.O'Shea|26-NOV-76|Vic SNSC|01-JAN-77||Schist|metamorphic rock|||N||17-JAN-23
Talgarry Sand Member|26159|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Lake Victoria Sand|10073|||Holocene||||deposition|Holocene|||||||NSW|Yes|30996|30996|||||See also Talgarry Sand, Talgarry Member.|||||N||17-JAN-23
Talingaboolba Formation|29039|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kopyje Group|28654|||Lochkovian|||inferred, biostratigraphic correlation|deposition|Pridoli|||inferred|||1000||No|32087||||||Previously combined with Mineral Hill Volcanics in the "Ootha Group" (McClatchie 1971).|Mass flow lithic conglomerate, lithic and quartz-lithic sandstone, vitric-rich volcanic mudstone and siltstone, aphyric dacite; minor limestone.|medium-coarse grained siliciclastic rock|acid volcanic rock||N||17-JAN-23
Tallaganda Granodiorite|24511|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Thurralilly Suite|75928|Silurian||||intrusion|Silurian|||||||NSW|Yes|39028|40276|D.Wyborn|31-MAY-82|Russell, T.|14-SEP-82|Defined in Wyborn D., Owen M. (1986) Araluen 1:100k explan. notes.|Grey to cream, coarse-grained, massive to protomylonitic, equigranular to sparsely porphyritic, muscovite-biotite-K-feldspar-plagioclase-quartz granite to granodiorite.|acid intrusive rock|||Y||17-JAN-23
Tallawang Granite|32034|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Emsian||||intrusion|Emsian||||||||No|23043||Meakin S.|20-DEC-97|||Dubbo 1:250k area. Not related to Tallawong (Reserved).|Fine- to medium-grained biotite granite, alkali granite, quartz monzonite, granophyre.|acid intrusive rock|||Y||17-JAN-23
Tallawudjah Leucosyenogranite|80916|Tallawudjah Leucomonzogranite|76970|||Yes|Formation, beds|Formal|Variation of published name|Described|||Tallawudjah Suite|82680|Upper Triassic|||||Upper Triassic|229.9|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Published in RefID 71628 Bryant (2017), GSNSW Report GS2017/0408, pp17-68 to 17-70. Of Glen Esk Supersuite. Originally the Tallawudjah Leucoadamellite (Korsch, 1975, 1978)|Porphyritic biotite-hornblende leucosyenogranite, and possibly leucomonzogranite; commonly altered.|acid intrusive rock|||Y||27-AUG-23
Tallawudjah Suite|82680|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Glen Esk Supersuite|82460|Upper Triassic|||inferred||Upper Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Biotite- hornblende leucosyenogranite and leucomonzogranite.|acid intrusive rock|||Y|A-type|17-JAN-23
Tallong Conglomerate|17708|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Shoalhaven Group|16844|||Artinskian||||deposition|Sakmarian||||||207||No|29750|68592|||||Formerly mapped with the Talaterang Group.  In the Kanimblan Highlands 'province'.   Fluvioglacial drainage deposits infilling channels, which along with Yadboro Conglom. are lateral equivs. of Pebbley Beach and Snapper Pt. Formations. Now [2012] includes the Yagers Conglomerate and Burrawang Conglomerate in the Moss Vale 1:100k area [S. Trigg, GSNSW 16-FEB-2012].|Poorly stratified, poorly sorted, clast supported, cobble to pebble conglomerate with minor medium-coarse grained quartz-lithic sandstone. Clasts are subrounded-well rounded and comprise quartzite, sandstone, vein quartz, chert, volcanics.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Tallowa Gully Granite|82681|Tallowa Gully granite|76756|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Carboniferous|||inferred||Lower Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Porphyritic medium-grained biotite granite.|acid intrusive rock|||Y||17-JAN-23
Tallowa Gully granite|76756|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Carboniferous||||intrusion|Upper Devonian||||||||No|70661||Trigg. S. (GSNSW) after Craft (1931)|16-FEB-12|||A pluton, only known from scanty past work  (Craft 1931, Fisher 1972 BSc(hons), Szabados 1990 BSc(hons)), but will appear on Moss Vale 1:100 000 geological map as an informal unit. CRAFT F.A. 1931. The physiography of the Shoalhaven River valley. Proceedings of the Linnean Society of New South Wales 56, 99-132.|Poorly known porphyritic medium-grained biotite granite|acid intrusive rock|||Y||17-JAN-23
Tallwood Intrusive Complex|73700|Tallwood Monzodiorite|30216|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Llandovery|||||Upper Ordovician|439|||||||No|63286|||||||Consists of porphyritic mafic intrusions that are predominantly equigranular.|basic intrusive rock|||N||17-JAN-23
Tallwood Monzodiorite|30216|Tallwood Monzonite|22943|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|43127|||||||Porphyritic clinopyroxene monzonite and monzodiorite|intermediate intrusive rock|||Y||17-JAN-23
Tally Ho Ignimbrite Member|79109|||||Yes|Member, phase|Informal|Other new published name|Fully described|Long Flat Volcanics|10619|||Lower Devonian||||intrusion|Lower Devonian||||||||No|69635||||||Not related to Vic or Qld units.|Green-grey, porphyritic ignimbrite of dacitic composition which retains a faint welded fabric in places.|acid volcanic rock|||N||17-JAN-23
Talmo Formation|82682|Talmo Limestone|17711|||Yes|Formation, beds|Formal|Variation of published name|Described|Douro Group|5668|||Wenlock|||inferred||Wenlock|||inferred|||||No|73215||||||Used in GSNSW seamless geology dataset 2021.|Limestone and marble, interbedded mudstone and calcareous layers, and mudstone and interbedded quartz sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||25-JAN-23
Tamby Creek Formation|29042|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Dalwood Group|28493|||Gzhelian|300.3|2.4|isotopic, U/Pb-Pb/Pb ion probe|deposition|Kasimovian|303.7|2.4|isotopic, U/Pb-Pb/Pb ion probe|||130||No|32094|60293|||||Previously thought to be of Permian age. Geological Province: Cranky Corner Basin.|Andesite and andesite breccia interbedded with lithic sandstone, conglomerate and tuff.|intermediate volcanic rock|siliciclastic sedimentary rock||N||29-AUG-23
Tamworth Group|17757|Tamworth Beds|17753|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Frasnian||||deposition|Givetian||||||||No|43491|43400|||||In the Tamworth Belt.|A series of intermediate volcanics and volcaniclastics, red breccias and limestones.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Tangaratta Formation|17776|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Parry Group|14916|||Tournaisian||||deposition|Tournaisian||||||900||No|43418||||||See also Goonoo Goonoo Mudstone.|Thinly bedded, fine grained feldsarenite, siltstone, mudstone and rare limestone|siliciclastic sedimentary rock|||N||17-JAN-23
Tangerang Formation|27094|Tangerang Volcanics|17778|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bindook Group|69879|||Pragian||||deposition|Lochkovian||||||2600|NSW|No|39568|39568|||||Maximum age from dating of Kerillon Tuff Member.|Massive to well-bedded tuffaceous sst., volcanic breccia+siltstone, qtz.sst., minor basal conglom., rare allochthanous limest.blocks; rhyolitic non-welded ignimb., welded dacite ignimb., massive to flow-banded dacite lava +high level intrusive dacite.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Tangorin Coal Member|34101|||||Yes|Member, phase|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|22610||||||||organic rich sedimentary rock|||N||17-JAN-23
Tangy Dangy Coal Member|17781|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34270||||||||organic rich sedimentary rock|||N||17-JAN-23
Tanja Syenite Complex|30466|Tanja Lamprophyre-Syenite Complex|17783|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Cretaceous||||intrusion|Upper Cretaceous||||||||No|22815|||||||Syenite, microsyenite, melasyenite, shonkinite, pyroxenite, monzonite, biotite monzonite.|intermediate intrusive rock|||Y||19-JUL-23
Tannabutta Group|30153|Tannabutta|22948|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Pridoli||||deposition|Ludlow||||||3500||No|22529||Pemberton J.|29-OCT-90|||Varied by Gary Colquhoun for publication on Mudgee 1:100 000 sheet.|Rhyolite to dacite lava, volcanic sandstone and autoclastics, shale, black mudstone, lithic and quartz sandstone, slate, volcanic conglomerate, limestone and limestone breccia, allochthonous basalt blocks; rare latitic to trachytic lava.|acid volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Tantangara Formation|26163|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||2000|NSW|No|36443|45147||||||Sandstone, siltstone and shale; quartzite|siliciclastic sedimentary rock|||N||17-JAN-23
Tantitha Ultramafic Complex|34615|Tantitha Intrusive Complex|30989|||Yes|Formation, beds|Formal|Variation of published name|Described|Jindalee Group|27440|||Devonian|||||Ordovician||||||||No|22831|||||||Hornblende diorite, meladiorite-melagabbro, hornblende pyroxenite, clinopyroxenite, dunite, serpentinised dunite.|ultramafic igneous rock|||N||24-JUL-23
Tanwarra Shale|29046|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mumbil Group|13411|||Ludlow||||deposition|Wenlock||||||375|NSW|No|43515|43517|||||Bathurst 1:250 000 sheet area. First defined by Packham (1968b).|Prodominantly black and brown mudstone, siltstone, limestone and lithic sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tanyarto Formation|17804|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Neoproterozoic||||||950||No|30261|||||||Green-grey siltstone with minor limestone and minor ripples. A separately mapped un-named subunit also contains thin to massive, variably continuous, clean to gritty carbonate beds.|carbonate sedimentary rock|||N||17-JAN-23
Taplow Limestone Member|26327|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician||||||10|NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden||carbonate sedimentary rock|||N||17-JAN-23
Tappitallee Mountain Tuff Member|17828|Tappitallee Mountain Tuff|17829|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Pheasants Nest Formation|26100|||||||eruption|||||||||No|36220||||||Of Pheasants Nest Formation (advice from Roger Cameron's Sydney Basin spreadsheet OCT-2010)|||||N||17-JAN-23
Tara Granodiorite|26164|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Tara Suite|31641|Lower Devonian||||intrusion|Late Silurian|418.7|4.2|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33779|35109|||||Berridale 1:100 000 sheet area. See also RefID 67060 p505.|Hornblende-biotite granodiorite and tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Tara Suite|31641|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian|||||Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Tarago Conglomerate|25516|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mulwaree Group|26064|||Pragian||||deposition|Pragian||||||300|NSW|Yes|32671||Felton E.A.||Bryan, J.H.|27-OCT-75||Boulder and cobble conglomerate, coarse tuffaceous sandstone, red siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Tarakan Formation|24009|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Artinskian||||deposition|Asselian||||||600||No|41009||R.E.Brown|04-FEB-87||||Quartzose and lithic sandstone, orthoconglomerate, minor mudstone and siltstone|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Tarana Granite|17834|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Bathurst Suite|31450|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Intrudes Bells Creek Volcanics. Previously included as part of the Bathurst Granite.|Multiple phase, porphyritic to equigranular biotite granite.|acid intrusive rock|||Y||17-JAN-23
Tarban mass|32505|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Dundee Rhyodacite|5829|||Late Permian|||||Permian||||||||No|42378||||||Shown as Wybera/Tarban mass in 91/27302.|||||N||17-JAN-23
Tarcoon Suite|77133|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Lochkovian|408.8|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|417.3|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|69635||Hegarty, R. (GSNSW)|05-MAY-11|||See also published Tarcoon plutonic complex.|I-type granitoids including biotite-hornblende granodiorite, syenogranite, biotite adamellite, local microgranite, rhyolite, and gabbro; variably foliated and epidotised|acid intrusive rock|||Y|I-type|17-JAN-23
Taree Limestone Member|77055|Taree Limestone|17849|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Pappinbarra Formation|22625|||Visean||||deposition|Tournaisian||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Published in GSNSW seamless geology. Lith desc from 2023 version.|Predominantly oolitic limestone, abundant crinoid debris and shelly fragments in a dark micritic groundmass. The ooliths have a bioclastic rather than lithic nuclei, all clasts are coated.|carbonate sedimentary rock|||N||26-SEP-23
Tarlo Formation|25517|||||Yes|Formation, beds|Formal|Other new published name|Defined|Lambie Group|10103|||Upper Devonian||||deposition|Mississippian||||||1000||No|29993|||||||Thinly bedded, purplish to reddish to fawn, fine- to medium-grained, often flaggy, lithic-quartz sandstone, interbedded with purplish to red, fine-grained sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Tarpaulin Creek Ashstone Member|17862|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Uriarra Volcanics|18992|||Late Silurian||||deposition|Late Silurian|||||||ACT|No|34405||||||Refers Malcolm(1954).|Fine-grained bedded tuff.||||N|I-type|24-JUL-23
Tarran Volcanics|24013|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Cobar Supergroup|27673|||Lower Devonian|415|3.9|isotopic, U/Pb-Pb/Pb ion probe|eruption|Wenlock|433.1|4.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|41394|41528|G.MacRae|11-MAY-83||||Massive, medium to fine-grained rhyolitic crystal, lithic-crystal and partly bedded vitric tuff, minor rhyolite lava and pebble conglomerate, and lithic breccia|acid volcanic rock|||N|A-type|17-JAN-23
Tarrangatta Schist|24515|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Silurian|||||Ordovician|||||||VIC|Yes|37871||P.O'Shea|29-NOV-76|Vic SNSC|01-JAN-77|Unclear if related to Tallangatta nomenclature?|Schist|metamorphic rock|||N||17-JAN-23
Tarrawonga Coal Member|22954|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||C.R.Weber|04-AUG-77|||Notification of change in ORIGN. This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, ash 20% (ad), splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Taylors Hill Formation|17909|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Queens Pinch Group|30152|||Pragian|||biozone|deposition|Pragian|||biozone|||240||No|43476|23170|||||Defining ref (Dubbo Explan Notes, 1999) does not refer to overlying unit. Warratra Mudstone is from previous ref. Includes Pragian vertebrate fossil fauna.|Mudstone, arenite, basaltic conglomerate, limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tea Tree Suite|31648|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Pennsylvanian|||||Pennsylvanian||||||||No|42726||||||Name may be obsolete?|||||Y||17-JAN-23
Teamsters Creek Subgroup|17916|Teamsters Creek Sub-Group|17915|||Yes|Subgroup|Formal|Variation of published name|Described|Torrowangee Group|18460|||Ediacaran||||deposition|Cryogenian||||||||No|34814||||||South Australian equivalent is Yerelina Subgroup.|Glaciogenic pebbly siltstone and sandstone, local diamictite and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Telegraph Point Member|67877|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Mingaletta Formation|23795|||Carboniferous||||deposition|Carboniferous||||||||No|||GSNSW|03-FEB-05|||Currently used name in NSW - database doesn't have a reference yet (DP030205). Published in GSNSW seamless geology. Lith desc from 2023 version.|Volcanolithic sandstone.|siliciclastic sedimentary rock|||N||26-SEP-23
Telegraph Swamp Coal Member|77597|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Sydney Basin|Coal: dull and bright bands, sporadically stoney; carbonaceous shale with coal laminae, grey-brown moderately-hard sideritic claystone, rare siderite bands, minor laminated shale|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Telephone Creek Formation|70560|Telephone Creek Sandstone|22964|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|61820|||||||||||N||17-JAN-23
Teltawongee Group|37348|Teltawongee beds|29560|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Middle Cambrian|504.5|2.6|isotopic, U/Pb-Pb/Pb ion probe|deposition|Early Cambrian|515|2.7|inferred, intrusive relationship|||||No|23889|66623|Direen N.|29-DEC-98|||Defined in Direen's PhD and published in 2001. Delamerian Orogen. Felsic tuffs in Depot Glen Fm dated as 504.5 +/-2.6Ma. Bunker Ck Fm intruded by Williams Peak Granite (age: 515.1 +/-2.7 Ma)[Koonenberry Explan Notes p33, 37, 348. RefID 66623].|Well cleaved and folded dark grey to buff-brown, fine- to medium-grained turbiditic silty and muddy sandstones, several metres thick; minor grey, green slate and maroon slate units; regionally metamorphosed to greenschist facies.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Temi Formation|17938|Temi Group|17939|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Sakmarian||||deposition|Asselian||||||220|NSW|Yes|43407||Lowe S.P.||||Variation of Temi Group of Hanlon (in Hill,1955 - J.GeolSocAust 2). Definition card undated. Data probably from Lowe's 1971 UNE BSc(Hons) thesis. Geological Province: Werrie Basin.|Tuffaceous lithic sandstone and conglomerate, shale, carbonaceous shale.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Temora Volcanics|22967|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Middle Devonian|||inferred, biostratigraphic correlation|eruption|Silurian|||inferred, biostratigraphic correlation||||NSW|No|22638|72082|Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.|Lavas: andesite, trachyandesite, latite, basaltic andesite; associated volcaniclastic sandstone, siltstone, conglomerate; and lapilli tuff.|intermediate volcanic rock|||N||17-JAN-23
Temperance Formation|27908|Temperance Chert|25523|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kiandra Group|27446|||Gisbornian||||eruption|Gisbornian||||||5000|NSW|No|36443|45147||||||Interbedded basaltic tuff, chert, and feldspathic arenite, minor agglomerate|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Tenambit Sandstone|22970|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Wallis Creek Subgroup|19293|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Very fine- to fine-grained, light grey to light brown sandstone with green and brown colour banding throughout and fine carbonaceous tracings; light grey siltstone with green and brown colour-banding throughout|siliciclastic sedimentary rock|||N||17-JAN-23
Tenandra Formation|27584|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cudal Group|4974|||Late Silurian||||deposition|Late Silurian||||||370||No|43515||||||Reinstated into the Cudal Group. 370m thick at type section is thought to be a minimum thickness. Absence of fossils suggest deep marine deposition environment.|Shale, siliceous arenite, coarse quartzofeldspathic arenite, minor laminated chert.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Tenningerie sand|17955|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||||||N||17-JAN-23
Tent Hill Volcanics|17964|Tent Hill Porphyrite|17961|||Yes|Formation, beds|Formal|Variation of published name|Described|Wandsworth Volcanic Group|29113|||Late Permian||||eruption|Ufimian||||||400||No|38824|23812||||||Dominantly porphyritic volcanics, including interbedded ignimbrite and lavas, commonly dark blue-green in colour. Main phenocrysts are andesine, hornblende and biotite. Volcaniclastic bedded rocks range from rhyolitic to andesitic in composition|acid volcanic rock|||N||17-JAN-23
Tenterfield Creek Leucogranite|82929|Tenterfield Creek Leucosyenogranite|82795|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Permian|||inferred||Permian|||inferred|||||No|||||||Shown in GSNSW seamless geology dataset 2021 as part of 'Unassigned composite unit', Pui_c, in combination with Blacksmiths Creek Monzogranite (no boundaries have been delineated).|Leucogranite.|acid intrusive rock|||Y||17-JAN-23
Tenterfield Creek Leucogranite, Blacksmiths Creek Monzogranite|82928|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023 as  'Unassigned composite unit', Pui_c,  (no boundaries have been delineated). Used in GA Solid Geology layer.|Leucogranite, monzogranite|acid intrusive rock|||Y|I-type|01-SEP-23
Tenterfield mass|32507|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Dundee Rhyodacite|5829|||Late Permian|||||Permian||||||||No|42378||||||Informal subdivision of Dundee Rhyodacite. Used in GSNSW seamless geology dataset 2021.|Ignimbritic rhyodacite: strongly porphyritic blue-grey rock with euhedral to anhedral phenocrysts of quartz, zoned plagioclase, biotite, hornblende, clinopyroxene and minor K-feldspar and orthopyroxene, set in a microgranular quartz-feldspar groundmass.||||N||21-JUL-23
Teralba Conglomerate Member|17969|Teralba Conglomerate|17970|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Catherine Hill Bay Formation|3791|||Lopingian|||inferred, lithostratigraphic correlation|deposition|Lopingian|||inferred, lithostratigraphic correlation|||40||No|43447||||||This Member was dropped in 1999. Formerly of Catherine Hill Bay Formation, Moon Island Beach Subgroup, Newcastle Coal Measures. Used as Member of Moon Island Beach Formation in 2002. Reinstated as Member of Catherine Hill Bay Formation in ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic pebble conglomerate (massive beds, to graded bedding), sandstone (as lenses).|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Tereel Coal Member|77431|||||Yes|Member, phase|Reserved|Reserved|Reserved|Jilleon Formation|23668|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Of Craven Subgroup, Gloucester Basin.|Coal: marker seams M1, M3 and M8|organic rich sedimentary rock|||N||17-JAN-23
Terimbone Monzogranite|77620|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Wards Mistake Suite|67903|Lopingian|253.1|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|253.1|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|14-JUN-12|||New England Orogen. Named after Terimbone Tableland, not Terembone Homestead/Creek in western NSW.|Altered micrographic to porphyritic monzogranite (as dyke-like body) with chilled margins; mineralisation includes cassiterite, arsenopyrite and pyrite|acid intrusive rock|||Y|I-type|19-OCT-23
Termeil Complex|36362|Termeil Essexite|17973|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Middle Triassic|241|4|||Kungurian|278.9|3.7||||||No|23544||||||Age: 241+/-4 Ma K-Ar whole rock (Facer and Carr, 1979). 278.9+/-3.7 Ma U-Pb zircon crystallisation age (Shi et al., 2022). This name may be intended to replace Termeil Essexite.|Mafic monzonitic intrusion, dominant lithology of coarse-grained monzo-diorite, cut by irregular pegmatite veins and patches. Relationship between variants is diverse. Locally contains distinct spidery felsic residual melt segregations.||||N||16-OCT-23
Termeil Essexite|17973|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Mesozoic||||intrusion|Kungurian|278.9|3.7||||||No|43981||||||Also called Bawley Point Essexite. In Sydney Basin area. Age updated and code changed by GSNSW, Feb 2023 based on Shi et al. (2022), who used the name Termeil Complex.|Dark, coarsely crystalline, olivine essexite; consisting of labradorite, augite, orthoclase, magnetite, olivine and apatite with secondary minerals.|basic intrusive rock|||Y||16-OCT-23
Terni Granite|17982|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Pennsylvanian||||intrusion|Mississippian||||||||No|36516||||||||acid intrusive rock|||Y||17-JAN-23
Terrace Creek Rhyolite|17991|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|40622||||||||acid volcanic rock|||N||17-JAN-23
Terrible Vale Porphyritic Microgranodiorite|82495|Terrible Vale Porphyritic Microtonalite|17996|||Yes|Formation, beds|Formal|Variation of published name|Described|||Uralla Suite|18973|Lower Triassic|||||Late Permian||||||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Includes the former Terrible Vale Porphyritic Microtonalite (Flood, 1971), Harnham Grove Porphyritic Microtonalite and Salisbury Waters Porphyrite (Binns et al., 1967). Comprises two masses c.12km S of Uralla.|A texturally heterogeneous sequence ranging from two-pyroxene dacite-tuffasite and fragmental dacite to fine-grained, porphyritic and medium-grained equigranular quartz-poor granodiorite-quartz monzodiorite, possibly within minor monzogranite.|acid intrusive rock|||Y|I-type|19-OCT-23
Terrica beds|17999|Terrica Beds|26933|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cisuralian|||inferred, biostratigraphic correlation|deposition|Cisuralian|283.1|5.2|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|43008||||||Of Lucas (1959, 1960c). Silver Spur Subprovince, Woolomin Province (Geology of Queensland 2013).|Lithic arenite, mudstone, siltstone; rare vitric tuff and conglomerate; locally fossiliferous.|siliciclastic sedimentary rock|acid volcanic rock|extensional continental backarc|N||17-JAN-23
Terrigal Formation|28255|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Gosford Subgroup|7628|||Middle Triassic||||deposition|Lower Triassic||||||330||No|31297|||||||Interbedded fine to medium-grained sandstone and siltstone, minor claystone.|siliciclastic sedimentary rock|||N||19-JUL-23
Teston Coal Member|77376|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Tettenhall Intrusive Complex|73699|Tettenhall Monzodiorite|29916|||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Ordovician|||||Ordovician||||||||No|63286||||||Intended to replace Tettenhall Monzodiorite.|Consists of gabbroic to monzontic intrusions that include equigranular rocks.|intermediate intrusive rock|basic intrusive rock||N||17-JAN-23
Tettenhall Monzodiorite|29916|Prince of Wales Diorite|15591|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Ordovician|439|1|isotopic, Ar/Ar|intrusion|Upper Ordovician|439|3|isotopic, Rb/Sr|||||No|22679|23214|Raymond, O.L.|06-NOV-95|||Bathurst 1:250 000 sheet area. Intrudes Weemalla Formation and fully encloses the Glendale Quartz Monzonite. Age 439 +/- 1Ma (Ar/Ar), 439 +/- 3Ma (Rb/Sr). Squire & Crawford (2007) propose replacing this name with Tettenhall Intrusive Complex.|Porphyritic and aphyric monzonite and diorite|intermediate intrusive rock|||Y||17-JAN-23
Texas beds|18012|Texas Beds|18006|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||||Pennsylvanian||||deposition|Mississippian||||||||No|35020||||||In Central Block and Woodsreef Melange. Woolomin Province (Geology of Queensland 2013, p447). Age of unit has been reported as old as Silurian to as young as 'Namurian' (= Serpukhovian/Bashkirian). Geology of Queensland 2013, p451 prefers a Visean age.|Greywacke, conglomerate, siltstone, mudstone, slate, local phyllite, chert, basalt, limestone and rare tuff; low grade regionally metamorphosed, variably deformed.|siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Thackaringa Group|25749|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|Willyama Supergroup|20135|||Statherian|1699|10|||Statherian|1710|||||3000|NSW|No|38969|39662|||||Age: >1700Ma.  Intruded by Potosi Supersuite. Minor Pb-Zn-Ag-Cu mineralization.|Composite gneiss, albite-rich rocks, granitic gneiss, amphibolite, minor quartz-magnetite rocks and garnet-quartz rocks.|high grade metamorphic rock||continental rift|N|S-type|17-JAN-23
Thalaka granite|76047|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Thalaka granite suite|80440|Late Silurian|421||inferred, geological correlation|intrusion|Ordovician|||inferred|||||No|66934||||||Of Thalaka Granite Suite. Deniniquin and Hay 1:250 000 maps sheet area. Appears to be informal unit based entirely on geophysics, although there may be some data from water bores? Unit interpreted as S-type granite. Shown as Early Devonian in RefID 66943.|granite|acid intrusive rock|||Y|S-type|17-JAN-23
Thalaka granite suite|80440|Thalaka Granite Suite|76046|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Late Silurian|421|3|inferred, intrusive relationship|intrusion|Ordovician|||inferred|||||No|70718||||||No known outcrop or intersecting drillcore, interpreted entirely from geophysics.|granite inferred.|acid intrusive rock|||Y|S-type|17-JAN-23
Thanowring Granite|22979|||||Yes|Formation, beds|Formal|Resvd name published|Described|Narraburra Complex|69150|Narraburra Suite|31617|Tournaisian|358|9|isotopic, Rb/Sr|intrusion|Famennian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.  Age and parentage deduced from Wormald et al, 2004, AJES, 51, p372.|Arfvedsonite granite|acid intrusive rock|||Y||17-JAN-23
Tharwa Adamellite|18032|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Shannons Flat Suite|31633|Lower Devonian||||intrusion|Late Silurian|414|6|isotopic, Rb/Sr||||ACT|No|45003|36413|||||Age quoted in Abell (1991) as being from Roddick & Compston (1976), who gave Rb/Sr total rock age of 423 +/6 Ma. Parent suite information from Phil Blevin, NSWGS, April 2010. Has this unit been incorporated into the Shannons Flat Granodiorite?|Biotite monzogranite|acid intrusive rock|||Y||17-JAN-23
The Basin Monzogranite|67910|The Basin Adamellite|18033|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Duval Suite|67902|Lower Triassic|245.2||isotopic, Rb/Sr|intrusion|Late Permian||||||||No|68111||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Part of the Uralla Supersuite. GSNSW seamless geology 2023 shows this unit as Early Triassic, but other dated units in the same Suite are Late Permian.|Medium to coarse grained biotite monzogranite; minor porphyritic variants.|acid intrusive rock|||Y|I-type|22-AUG-23
The Brothers Suite|77628|The Brothers Granitoids|69453|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Triassic|||||Upper Triassic|212.5|1.6||||||No|71628||Blevin, P. (GSNSW)|14-JUN-12|||New England Orogen. Published in RefID 71628 Bryant (2017), GSNSW Report GS2017/0408, pp17:71 to 17:87. It includes the Middle Brother Granodiorite, North Brother Granodiorite, South Brother Microgranite, Lorne Forest Granodiorite, Juhle Mountain Granodiorite, Hannam Vale Granodiorite, and the Cataract Creek Granodiorite.|Hornblende-biotite granodiorite, varying to granite; porphyritic microgranite to microgranodiorite; porphyritic monzogranite; riebeckite microgranite|acid intrusive rock|||Y|A-type|23-AUG-23
The Calpe Ignimbrite Member|40755|The Calpe|39890|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Bashkirian|||inferred|intrusion|Serpukhovian|||inferred||||NSW|Yes|50613||Roberts, J.|16-DEC-03|NSW SNSC|07-APR-04|See also Calpe Ignimbrite Member (probably misspelt?) - defined in AJES 51(2), p227. Used in GSNSW seamless geology dataset 2021.|Pink-purple to orange unwelded to welded, ignimbrite with phenocrysts of quartz, plagioclase, minor K-feldspar and biotite. Groundmass shard-rich, partly micropoikilitic, vitric at the base.|acid volcanic rock|||N||17-JAN-23
The Downs Rhyodacite Member|77053|Downs Rhyodacite Member|37910|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Clifden Formation|4147|||Carboniferous||||eruption|Carboniferous||||||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW. See previous name for definition.|Unwelded red ignimbrite with quartz, feldspar and pumice fragments. The groundmass is vitric and contains shards and bubble walls|acid volcanic rock|||N||17-JAN-23
The Gap Sandstone|24023|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Permian||||deposition|Permian|||||||NSW|No|38614|40806|C.Bembrick|30-JUN-80|||See letter for more information.||siliciclastic sedimentary rock|||N||17-JAN-23
The Ghost Granodiorite|22981|||||Yes|Formation, beds|Informal|Reserved|Not recorded|||||||||intrusion|||||||||No|||L.Wyborn|03-DEC-76|||Samples accidently included in the Lady Northcotes Granodiorite collection by Chappell and the outcrop included in the Happy Jacks Adamellite on the Kosciusko NP map, 1990, but this unit is distinct [advice L.A. Wyborn, R. A. Eggleton 22-May-2019]. More information in L. Wyborn PhD, ANU.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
The Knobs Tonalite Phase|82437|The Knobs Tonalite|82436|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Woodburn Complex|82435|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Hornblende (-biotite) and clinopyroxene (-hornblende-biotite) tonalite.|acid intrusive rock|||Y|I-type|01-SEP-23
The Pinnacle Dolerite|32496|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Devonian||||intrusion|Devonian||||||||No|22638||||||Cootamundra 1:250 000 sheet area. Lithology description from GSNSW seamless geology 2023.|Dark greenish-grey, fine- to medium-grained, equigranular, pyroxene-rich dolerite.|basic intrusive rock|||Y||28-SEP-23
The Ram Swamp Monzogranite|82507|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Jenners Suite|82505|Middle Triassic|||inferred||Middle Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Pale pink to pink, or pale grey (locally), medium-grained, porphyritic biotite-(hornblende) monzogranite; rapakivi textures are locally well-developed. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
The Ridge Monzogranite|82684|Ridge Monzogranite|74781|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium-grained, seriate, K-feldspar-rich, biotite monzogranite. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
The Secrets Andesite|24518|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||||||eruption||||||||NSW|Yes|39656||H.N.Bowman|05-JUN-75|Bryan, J.H.|27-OCT-75|||intermediate volcanic rock|||N||17-JAN-23
The Tops Rhyolite Member|37917|The Tops Dacite|30052|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Lark Hill Formation|10194|||Pennsylvanian|316.3|2.1||eruption|Pennsylvanian|||||||NSW|Yes|50613||Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|Also replaces 'Tops Rhyolite Member'.|Grey-green ignimbrite: abundant feldspar (mostly plagioclase), quartz, biotite; flow textured groundmass, pumice replaced by chlorite and zeolite, rare shards and bubble walls. Red ignimbrite: finer grained, more quartz, tube pumice, vitric groundmass|acid volcanic rock|||N||17-JAN-23
The Valley Tank Arenite Member|34356|The Valley Tank Sandstone Member|22983|||Yes|Member, phase|Formal|Resvd name published|Defined|Coco Range Sandstone|21515|||Eifelian||||deposition|Emsian||||||150|NSW|Yes|22730||Neef G., Bottrill R.S., Ritchie A.||NSW SNSC|06-JUN-94|1 of 5 units in Coco Range Sandstone,  Variation of reserved The Valley Tank Sandstone.|Coarse-grained arenite and pebbly arenite followed by friable silty mudstone and arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Theiss Coal Member|77433|||||Yes|Member, phase|Reserved|Reserved|Reserved|Rowan Formation|26878|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Of Greta Coal Measures, Sydney Basin.  Unclear how this relates to the  'Thiess Split'  of the Puxtrees Coal Member.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Therribri Coal Member|22985|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Coal Measures|11471|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||D.Butel|03-AUG-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012. Used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash (7-14% raw), bituminous  (soft coking) coal, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Thirroul Sandstone|72979|Thirroul|22986|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Sydney Subgroup|17602|||Late Permian||||deposition|Late Permian||||||||No|61315||||||Reserved by Hutton (1994) - not known if published by originator. Within the Illawarra Coal Measures.||siliciclastic sedimentary rock|||N||17-JAN-23
Thirty Foot Coal|29054|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|41054||||||||organic rich sedimentary rock|||N||17-JAN-23
Tholeiitic Gabbro|34622|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Ordovician||||intrusion|Ordovician||||||||No|22831||||||Described.||basic intrusive rock|||Y||17-JAN-23
Thologolong Granite|18061|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Boggy Plain Supersuite|2092|Middle Devonian||||intrusion|Lower Devonian|415.7|2.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|32684||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G102. name also in NSW State list.|Pink, A-type, highly magnetic, coarse grained, two mica granite with a slightly finer grained marginal phase.|acid intrusive rock|||Y|A-type|22-AUG-23
Thomkins Gully Monzogranite Phase|82686|Undercliffe Falls Monzogranite|41352|||Yes|Member, phase|Informal|Other new published name|Briefly described|||Cullendore Syenogranite|82401|Middle Triassic|||||Middle Triassic||||||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium-grained, mildly porphyritic to equigranular, biotite-hornblende monzogranite. Contains ellipsoidal mafic enclaves. ?A-type.|acid intrusive rock|||Y||20-JUL-23
Thompsons Volcanics|37408|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Burraga Group|3120|||||||eruption|||||||||No|23214||||||Supserseded by Kangaloolah Volcanics on Blayney 1:100 000 (1996), reinstated in Bathurst 1:250 000 Explan. notes (1998).|||||N||17-JAN-23
Thorkidaan Volcanics|18080|Thorkidaan Volcanic Group|18078|||Yes|Formation, beds|Formal|Resvd name published|Defined|Enano Group|24268|||Pridoli||||eruption|Wenlock||||||3000|VIC|Yes|37330||VandenBerg, A.H.M.|25-JUL-78|Vic SNSC|30-MAR-78|Definition card 1978, superseded by published defn for Thorkidaan Volcanic Group but original name reinstated in 1987.  Northeast trending bands of high K, low Th, and low K, high Th. (60508)|Rhyolitic lava, minor volcaniclastics, pyroclastics and shallow intrusions; volcaniclastics are massive, porphyritic with phenocrysts of quartz, K-feldspar, plagioclase and biotite.|acid volcanic rock|||N||17-JAN-23
Thorndale Composite Gneiss|18082|Thorndale Gneiss|27585|||Yes|Formation, beds|Formal|Other new published name|Defined|Thackaringa Group|25749|||Statherian|1617|3|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Statherian|1735|35|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|1000|2000|NSW|No|38969|39662|||||In the Willyama Fold Belt; also in Curnamona Province. Max depositional age (1770-1700) from detrital zircons (Page et al. 2005). Apparent ages: 1640 to 1610Ma and older (SHRIMP zircon). See also misspelt Thornedale Composite Gneiss. Min age shown is maximum metamorphic age from Page et al (2005). Clevedale Migmatite appears as constituent of Thorndale Composite Gneiss (in RefID 70015; 2015).|Metasedimentary pelitic to  psammitic gneiss.|metasedimentary siliciclastic rock||continental rift|N||17-JAN-23
Thorndale Composite Gneiss, Clevedale Migmatite, Mulculca Formation, Ednas Gneiss, Redan Gneiss|40872|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Willyama Supergroup|20135|||Paleoproterozoic|||||Paleoproterozoic||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Metasedimentary composite gneiss, migmatite, albite, amphibolite, minor magnetite|high grade metamorphic rock|||N||17-JAN-23
Thornfield Coal Member|77373|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||Greenfield, J. (GSNSW)|26-SEP-12|||This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Thornton Claystone|24027|||||Yes|Formation, beds|Formal|Resvd name published|Described|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian|266|.4|isotopic, U/Pb-Pb/Pb, TIMS|||||No|42214||B.C.Preston, K.J.Brown|31-MAY-85|||Sydney Basin.|Light grey to white claystone with silty bands mid section, shaley laminations at top, slumping and disrupted bedding|fine grained siliciclastic rock|||N||17-JAN-23
Three Peaks Siltstone Member|29056|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Baledmund Formation|954|||Lochkovian||||deposition|Lochkovian||||||||No|35287|||||||Thin-bedded siltstone and fine-grained lithic-quartz arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Three Rocks Suite|31643|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Three Rocks Tonalite|32251|Three Rocks Granodiorite|22991|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Three Rocks Suite|31643|Lower Devonian||||intrusion|Lower Devonian||||||||No|60078|||||||Hornblende-biotite granodiorite, tonalite, quartz monzodiorite, diorite; common amphibolite xenoliths|acid intrusive rock|||Y||10-SEP-23
Three Sisters Sill|82166|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lochkovian|||||Lochkovian|414.2|2.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72522||||||Of Black, 2005, who described it as 'sill within Mount Daubeny Formation'. Compared with Wertago Volcanics age.|||||Y||17-JAN-23
Throsby Granite|24029|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Myocum Suite|31523|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||Ilsley D., Lewis P.|14-FEB-80||||Leucogranite, monzogranite|acid intrusive rock|||Y||17-JAN-23
Thrumster Slate|24030|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Cisuralian|||||Cisuralian||||||650|NSW|No|40134|40134|E.C.Leitch|19-NOV-79|||To be used in Port Macquarie district.|Slate, metasandstone and metagranule conglomerate.|metasedimentary siliciclastic rock||extensional continental backarc|N||17-JAN-23
Thule Granite|18106|Wirlong Granite|20291|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pridoli|422.8|2.6|inferred, overlying unit|magmatic crystallisation|Wenlock|425.7|2.4|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|43389|41821|||||Texturally and compositionally similar to the Erimeran Granite (427.2 +/- 2.4 Ma; Black, 2007).|Biotite-muscovite and muscovite granite; lesser porphyritic biotite-muscovite microgranite; minor porphyritic coarse grained muscovite-biotite granite with biotite-rich microgranitic enclaves, pegmatite, aplite|acid intrusive rock|||Y|S-type|10-AUG-23
Thurralilly Suite|75928|||||Yes|Group, Suite|Informal|Resvd name published|Defined|||||Silurian|||||Silurian||||||||No|66300||Deyssing, L. (GSNSW)|20-APR-11|||Grouping of  L. Silurian intrusive units ranging in composition from gabbro to leucogranite. To be published: Braidwood 1:100 000 geological map 2nd ed. To include Ellenden Granite, Butmaroo Granite, Tallaganda Granodiorite and the Lockhart Igneous Complex (reverting to former name, with multiple unnamed phases and will also supersede the Rossi Granodiorite)||acid intrusive rock|basic intrusive rock||Y||17-JAN-23
Thurungly Granite|29579|Gilmore Hill Granite|26573|||Yes|Formation, beds|Formal|Resvd name published|Described|Narraburra Complex|69150|Gilmore Hill Suite|69147|Upper Devonian||||intrusion|Upper Devonian||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area.  Age and parent deduced from Wormald et al, 2004, AJES, v51, p372|Hornblende-biotite granite|acid intrusive rock|||Y||17-JAN-23
Tia Granodiorite|18114|Tia Adamellite-Granodiorite|18112|||Yes|Formation, beds|Formal|Variation of published name|Described|||Hillgrove Supersuite|67847|Pennsylvanian|299.7|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Pennsylvanian|299.7|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|29990||||||Age 299.7 +/- 2.0 from McKibbin et al, 2017.  Intention to change parent to reserved name Tia Suite (of the Hillgrove Supersuite) (D.Champion, 2010, pers.comm.). GSNSW seamless geology dataset 2021 shows parent as Hillgrove Supersuite.|Foliated biotite granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Tiabundie beds|18117|Tiabundie Beds|18116|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|38222|||||||||||N||17-JAN-23
Tibooburra Granodiorite|18127|Tibooburra Granite|18126|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Tibooburra Suite|73401|Pridoli|420.6|3.3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Ludlow|427.7|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|40291||||||In the Thomson Fold Belt.  Included in the Tibooburra Suite in 2007. Min age from 1997 reference.|Massive, weakly porphyritic, strongly jointed, seriate granodiorite, minor granodiorite dykes, massive leucogratic granitoid, and massive equigranular diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Tibooburra Suite|73401|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Pridoli|420||||Ludlow|428|||||||No|66921|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Said to be Silurian, But Tibooburra Granodiorite has minimum age given as 412 Ma (Early Devonian). Thomson Orogen? See also Tibooburra suite.|Predominantly I-type suite dominated by undeformed, massive, medium grained hornblende granodiorite with smaller bodies of diorite, dacite, pegmatite and aplite.|acid intrusive rock|intermediate intrusive rock||Y|I-type|17-JAN-23
Tickhole Formation|27913|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||||No|43447||||||Of Adamstown Subgroup, Newcastle Coal Measures. This name was dropped. Included Stockrington Tuff Member, Charlestown Conglomerate Member. These rocks were included in Adamstown Formation, but the original units were subsequently reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate, sandstone and shale.|siliciclastic sedimentary rock|||N||03-SEP-23
Tidbinbilla Quartzite|18134|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Wenlock||||deposition|Llandovery||||||300|ACT|No|39800|45147|||||Shown as Black Mountain Sandstone on Abell et al 2008 - Geology of the ACT.|Massive to thin-bedded quartz sandstone and quartzite; minor shale, basal coarse gritstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Tiger Snake Igneous Complex|18146|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40246|||||||||||Y||17-JAN-23
Tighes Hill Formation|18147|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|43447||||||Of Lambton Subgroup, Newcastle Coal Measures. This name was dropped. Included Ferndale Conglomerate Member. These rocks were included in Lambton Formation, but original unit reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Shale, siltstone, sandstone, claystone, and tuff.|siliciclastic sedimentary rock|||N||03-SEP-23
Tiilungra Limestone Member|77324|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Namoi Formation|13721|||Carboniferous||||deposition|Carboniferous||||||||No|68005|||||||Coarse, crossbedded feldsarenite, siltstone, conglomerate, calcareous mudstone, oolitic & bioclastic limestone|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Tilbuster Granodiorite|18148|Tilbuster granodiorite|18149|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Uralla Supersuite|67894|Permian|||inferred|intrusion|Permian|||inferred|||||No|30789||||||Within the Uralla Supersuite.|Augite-bronzite-hornblende-biotite granodiorite. Transitional I-S type granitoids|acid intrusive rock|||Y|I-type|17-JAN-23
Tilligerry Creek Coal Member|77593|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Sydney Basin|Coal: either dull (and sporadically banded) or bright banded; carbonaceous shale, weakly carbonaceous grey-brown mudstone, brown sideritic claystone|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Tilligerry Mud Member|81862|||||Yes|Member, phase|Informal|Other new published name|Briefly described|||||Holocene|||inferred, overlying unit||Pleistocene|||inferred, underlying unit|||||No|68811||||||Member of what? Not stated.|Estuarine muds and sands.|sediment|||N||17-JAN-23
Tilmunda Syenogranite Phase|82646|Tilmunda Granite|29058|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Pringles Monzogranite|41071||||||||||||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Coarse-grained, equigranular to seriate, leucocratic biotite syenogranite-monzogranite. I-type.|acid intrusive rock|||Y||17-JAN-23
Timbarra Tablelands suite|68871|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described||||||||||||||||||No|60422||||||Previously Timbarra Tablelands pluton - now assigned this new informal name.|||||Y||17-JAN-23
Timbrebongie Granite|23006|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Boggy Plain Supersuite|2092|Pragian||||intrusion|Lochkovian||||||||No|43441||Sherwin L.|13-AUG-93|||Narromine 1:250 000 sheet.|Biotite rich coarse grained granite|acid intrusive rock|||Y||17-JAN-23
Timbury Hills Formation|18177|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Mississippian|360|8|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Pridoli|419.8|4.1|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|44423|44169|||||The 360 Ma age is interpreted to be metamorphism related to granite intrusion. The maximum depositional age of 401 +/-7 Ma, obtained from the same gneiss sample, is significantly younger than the 419.8 Ma maximum depositional age obtained from a sandstone. The stratigraphic positions of the samples within the Timbury Hills Formation are not known. The formation also contains Devonian plant fossils in AAO Pickanjinne 2.|Interbedded sandstone, siltstone and argillite metamorphosed to lower greenschist facies. Includes garnet-muscovite-biotite paragneiss. Has volcanic horizon(s).|metasedimentary siliciclastic rock|||N||17-JAN-23
Timor Limestone Member|18183|Timor Limestone|18184|||Yes|Member, phase|Formal|Unknown or process pending|Described|Yarrimie Formation|20896|||Frasnian||||deposition|Eifelian||||||360||No|43407|||||||Grey fossiliferous bioclastic limestone with local basal conglomerate, three cherty intervals and jasperoid nodules.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Timor Rock Trachyte Member|81951|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Naman Formation|81948|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Flow-foliated porphyritic anorthoclase, arfvedsonite trachyte.|intermediate volcanic rock|||N||17-JAN-23
Tinchelooka Diorite|79954|Tinchelooka diorite|78372|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Emsian|401.8|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Emsian|401.8|3.1|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71965||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Name to be formalised. Occurs on the Tinchelooka 1:100k map sheet as a bulbous-shaped area of high magnetic intensity interpreted as an intrusion. Zircons were extracted from a mineral exploration drill hole at the north-east end of the intrusion.|Massive undeformed altered fine- to medium-grained plagioclase-phyric porphyritic quartz diorite.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Tinda Mountain Conglomerate Member|25532|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Baledmund Formation|954|||Lochkovian||||deposition|Lochkovian||||||||No|35287||||||Used in GSNSW seamless geology dataset 2021.|Quartz-lithic cobble and boulder conglomerate and sandstone.||||N||21-JUL-23
Tinderra Granite|18200|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lower Devonian|410|10|isotopic, K/Ar|intrusion|Silurian||||||||No|45003||||||Max Age: ~410 Ma (K-Ar).|Locally foliated muscovite-biotite granite with minor greisenous phases (S-type).|acid intrusive rock|||Y|S-type|17-JAN-23
Tinderry Granite|26173|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Tinderry Suite|31646|Lower Devonian||||intrusion|Lower Devonian|390||||||NSW|No|39800|36413||||||Biotite granite, massive, homogenous, medium-grained|acid intrusive rock|||Y||17-JAN-23
Tinderry Suite|31646|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Tingaringy Granodiorite|18207|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Tingaringy Suite|18208|Lower Devonian||||intrusion|Late Silurian|425.5|4.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33852|41905|||||See also Tingaringi Granite, Granodiorite. Rb/Sr Age: 412+/-3.7 Ma. See also RefID 67060 p505.|Cordierite biotite tonalite, granodiorite and monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Tingaringy Suite|18208|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bullenbalong Supersuite|2897|Late Silurian|||||Silurian||||||||No|41905|||||||||||Y||17-JAN-23
Tingha Monzogranite|38354|Tingha Adamellite|18209|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Duval Suite|67902|Induan|251.3|1.7||intrusion|Changhsingian|251.3|1.7|isotopic, U/Pb-Pb/Pb ion probe|||||No|23812||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Within the Uralla Supersuite. Together with the Elsmore Granite and the Gilgai Granite forms the Tingha Sn-W district.|Porphyritic hornblende-biotite monzogranite.|acid intrusive rock|||Y|I-type|22-AUG-23
Tingira Conglomerate Member|18212|Violet Town Conglomerate Member|19125|||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Glebe Formation|7326|||Lopingian||||deposition|Lopingian||||||||No|34351||||||This Member dropped in 1999. Formerly of Glebe Formation, Adamstown Subgroup, Newcastle Coal Measures. Unit reinstated ~2015.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Tinkers Creek Granodiorite|18216|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|60007||||||||acid intrusive rock|||Y||17-JAN-23
Tinonee beds|18219|Tinonee Beds|18218|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Carboniferous|||||Devonian||||||||No|41348|||||||||||N||17-JAN-23
Tintern Granodiorite|29595|Tintern Aplite|29062|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Silurian||||intrusion|Silurian||||||||No|43642||||||To replace Tintern Aplite in Bathurst 1:250 000 map notes. Forms part of the Pine Mount Granodiorite of Stevens (1955) and the Pine Mount Intrusive Complex of Madsen (1970).  Intrudes Walli Volcanics.|Leucocratic, medium grained biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Tintern Granodiorite, Padua Granodiorite|42008|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Leucocratic, medium grained, biotite diorite; medium grained, equigranular, biotite hornblende granodiorite|acid intrusive rock|||Y||17-JAN-23
Tirranna Andesite Member|69886|||||Yes|Member, phase|Formal|Other new published name|Defined|Gundary Volcanics|69883|||Lochkovian|414|4|inferred, overlying unit|eruption|Lochkovian|||inferred, underlying unit||||NSW|No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Part of the Mount Fairy Group.|Green-grey massive to amygdaloidal pyroxene-phyric andesite affected by strong qtz-sericite + chlorite+/-pyrite alteration. Massive matrix-supported volcanic conglom.containing rounded scoriaceous andesite clasts, qtz-feldspar phyric rhyolite blocks.|intermediate volcanic rock|||N||17-JAN-23
Toaks Creek Conglomerate|18250|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Wombat Creek Group|20398|||Pridoli||||deposition|Pridoli|||||||VIC|No|38151|38151|P.Bolger|03-SEP-79||||Conglomerate deposited as fanglomerates; massive to crudely bedded, with high portion of rhyolite and porphyry clasts in lower part; minor sandstone lenses. (60505) Nonmagnetic (0-5nT); low total count, K, Th, U (60508)|siliciclastic sedimentary rock|||N||07-SEP-23
Tobermory Monzogranite|76971|Tobermory Adamellite|18252|||Yes|Formation, beds|Formal|Variation of published name|Described|||Rockvale Suite|73933|Cisuralian||||intrusion|Carboniferous||||||||No|71628||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Also published in GSNSW seamless geology.|Biotite monzogranite, commonly foliated with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|high grade metamorphic rock||Y|S-type|26-SEP-23
Tocumwal Granite|18255|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Silurian||||intrusion|Silurian||||||||No|44340|||||||White often porphyritic biotite granite|acid intrusive rock|||Y||17-JAN-23
Toggannoggra Rhyolite Member|24527|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Long Flat Volcanics|10619|||Pragian||||eruption|Lochkovian|412.3|2.3|||||NSW|Yes|39028|40276|D.Wyborn|30-NOV-79|Russell, T.|14-SEP-82|Previously considered Late Silurian age.|Cream, grey and black, medium-grained, moderately crystal-rich, densely-welded rhyolitic ignimbrite; minor intercalated non-welded tuff and volcanic sandstone; rare siltstone.|acid volcanic rock|||N||17-JAN-23
Tolga Member|33379|Tolga Calcarenite|18265|||Yes|Member, phase|Formal|Variation of published name|Defined|Cunningham Formation|5031|||Lochkovian||||deposition|Lochkovian||||||400|NSW|No|23043|23170|Meakin S.|16-FEB-99|||Dubbo 1:250 000 sheet, 2nd ed prelim. June 1998.|Calcareous sandstone and siltstone; shale.|carbonate sedimentary rock|||N||17-JAN-23
Toll Bar Formation|18267|Toll Bar Group|26949|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Kazanian||||deposition|Kazanian||||||600||No|43407||||||Geological Province: Werrie Basin. Max. Thickness: 600m+. Previously known as Toll Bar Group.|Claystone, lithic sandstone, conglomerate, limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tolleys Gully Leucomonzogranite|82606|Tollys Gully Leucomonzogranite|67913|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Uralla Supersuite|67894|Lower Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine-grained, equigranular, biotite leucomonzogranite.|acid intrusive rock|||Y||19-OCT-23
Tolligo Granodiorite|80963|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Lower Devonian|||inferred||Lower Devonian|||inferred|||||No|71039|||||||Interpreted as granodiorite.|acid intrusive rock|||Y||17-JAN-23
Tollingo Granodiorite|80721|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Devonian|||inferred||Devonian|||inferred|||||No|71693|||||||I-type. Medium-grained, white, hornblende-biotite granodiorite with prominent poikilitic texture comprising plagioclase, quartz and ferromagnesians set in alkali feldspar chadacrysts.|acid intrusive rock|||Y|I-type|17-JAN-23
Tom Groggin Suite|18286|Tom Groggin Supersuite|18287|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Koetong Supersuite|9704|Silurian||||intrusion|Silurian||||||||No|41563|||||||Granite, Tonalite, Granodiorite; Biotite and muscovite granite.|acid intrusive rock|||Y||17-JAN-23
Tomago Coal Measures|18289|||||Yes|Group, Suite|Formal|Other new published name|Redefined|Singleton Supergroup|16939|||Wuchiapingian||||deposition|Wordian||||||1250|NSW|No|43491|43477|||||See also Lexicon.|Siltstone, sandstone, coal,  tuff, claystone, conglomerate, minor clay.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Tomago Thin Coal Member|82553|Tomago Thin Seam|25538|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Alnwick Formation|21118|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dull and bright-banded coal with many stoney bands, carbonate-healed cleats; coaly shale, carbonaceous mudstone bands, light-brown soft claystone; seam split by grey very fine-grained sandstone and laminated mudstone beds.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Tombong Formation|33677|Tombong beds|18314|||Yes|Formation, beds|Formal|Variation of published name|Defined|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||400||No|22815|22815|||||Seems to be preferred name in NSW. See also Tombong beds.|Massive sandstone, minor siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Tomboye Basalt|26175|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Eocene|40.7||isotopic, K/Ar|eruption|Paleocene|44.8||isotopic, K/Ar||||NSW|Yes|30736|30735|Huleatt M.B.||Bryan, J.H.|27-OCT-75||Grey to black, fine- to medium-grained, weakly porphyritic and sometimes vesicular, olivine basalt.|basic volcanic rock|||N||27-APR-23
Tomcat Gully Sandstone|77379|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Coogal Subgroup|30031|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|12-JUN-12|||Sandstone, siltstone, claystone and coal with rare conglomerate.  The unit may correlate with the Clare Sandstone of the eastern Gunnedah Basin. Used in GSNSW seamless geology dataset 2021.|Sandstone, siltstone, claystone and coal with rare conglomerate.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Tomingley Siltstone|18317|Tomingley Beds|25539|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||deposition|Lower Ordovician|||||||NSW|Yes|40365|40365|Bowman H.N., Richaradson S.J.||Russell, T.|18-JUN-82|||siliciclastic sedimentary rock|||N||17-JAN-23
Toms Creek serpentinite|75837|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cisuralian|||||Pennsylvanian||||||||No|65317||||||Appears to be an informal name. Located in the southern Hastings Block, New England Orogen.  Structures suggest Early Permian emplacement. Shown as Toms Creek Serpentinite in figs. NOT related to Toms Creek rhyolite, QLD.|||||N||17-JAN-23
Tongarra Coal|27587|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Sydney Subgroup|17602|||Late Permian||||deposition|Late Permian||||||3.8||No|29900||||||Replaces Brimstone seam. Lithology description from GSNSW seamless geology 2023.|Coal, carbonaceous siltstone and shale, tuffaceous claystone. Coal is interbanded and interbedded dull and bright coal up sequence; interbedded carbonaceous and tuffaceous claystone in the basal sections.|organic rich sedimentary rock|||N||28-SEP-23
Tonghi Suite|18336|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Tonghi Supersuite|18338|Lower Devonian||||intrusion|Late Silurian||||||||No|42827|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Tonghi Supersuite|18338|||||Yes|Supergroup|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42827|||||||Granite, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Tongo Formation|79955|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Furongian|||inferred||Late Cambrian|||inferred|||||No|71965||Purdy, D. (GSQ), Hegarty (GSNSW)|20-JUN-17|||Possibly magnetised metasedimentary rocks similar to the Nurri Group. Characterised by linear trends of moderate magnetic intensity in the Gumbalara Zone. No known outcrop or drillcore; lithology, age and affinity are unknown. Interpreted to be overlain by non-magnetic Cobar Supergroup equivalents, which infers the Tongo Formation to be of Silurian age or older. Lithology description from GSNSW seamless geology 2023.|Steeply dipping light grey-green slate, metasedimentary siltstone and sandstone. Single foliation at a low angle to bedding. Rare carbonaceous layers. Pyrite as disseminated grains or in fractures. Common sedimentary structures.||||N||28-SEP-23
Tongo Granodiorite|82613|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Nantilla Suite|82611|Ludlow|||inferred||Ludlow|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Medium-grained, medium potassium (meduim-K) unfractionated granodiorite (I-type). High magnetic intensity.|acid intrusive rock|||Y|I-type|17-JAN-23
Tongo intrusion|82472|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Silurian|||||Silurian|425||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72914||||||Reference to granite at the botton of Tongo 1 well. Name should not be formalised. Tongo Formation used in the same area.|Magnetic, medium-K, I-type granodiorite that is unfractionated.|acid intrusive rock|||Y|I-type|17-JAN-23
Toogoolawah Group|18352|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Middle Triassic||||deposition|Lower Triassic||||||6000||No|29386|||||||Conglomerate, sandstone, shale, tuff, intermediate volcanics.|siliciclastic sedimentary rock|intermediate volcanic rock||N||04-JUL-23
Toolamanang Formation|30025|Toolamanang Volcanics|24530|||Yes|Formation, beds|Formal|Variation of published name|Defined|Tannabutta Group|30153|||Silurian||||deposition|Silurian||||||3000||No|43188|23170|||||See also defined name Toolamanang Volcanics.|Arenite, mudstone, fragmental basalt blocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Toolebuc Formation|18375|Toolebuc Limestone|18382|||Yes|Formation, beds|Formal|Variation of published name|Defined|Wilgunya Subgroup|20031|||Cenomanian|98|||deposition|Albian|101|||||65|QLD|Yes|44291|63979|Senior B.R., Exon N.F., Burger D.||Staines, H.R.E.|04-JUN-75|Previously included in the Marree Subgroup, Neales River Group (see Strzelecki 1:250k map (1994) and explan notes (1995)) in South Australia.  Age: ~101-~98Ma.|Laminated calcareous and kerogenous mudstone, minor coquinite and limestone, labile sandstone and oil shale.|carbonate sedimentary rock|fine grained siliciclastic rock|intracratonic|N||17-JAN-23
Toongi Group|26178|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Pridoli||||deposition|Wenlock||||||9000|NSW|No|43476|40328|||||See also the defined Toongi Hall Tuff (1982) which is a unit in this group.|Quartzose to lithic and volcaniclastic sandstone, shale, siltstone, chert, rhyolitic tuff; minor conglomerate, mafic tuff and lava, hornfels, phyllite.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Toongi Hall Tuff|18409|||||Yes|Formation, beds|Formal|Other new published name|Defined|Toongi Group|26178|||Ludlow||||eruption|Ludlow||||||450|NSW|No|43476|40328|||||Possibly refers to a part of Toongi Group.|Fine and coarse-grained cherty tuff, rhyolite tuff.|igneous volcanic rock|||N||17-JAN-23
Toopuntul granite|76035|||||Yes|Formation, beds|Informal|Other new published name|Described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred|intrusion|Middle Devonian|||inferred, geological correlation|||||No|66934||||||Of Baconian Swamp Granite Suite. Appear to be informal unit based entirely on geophysics, although there may be some data from water bores?  Interpreted as S-type granite. Shown as Late Devonian in RefID 66943.|Inferred as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Toorale gabbro|78976|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|69540||||||Inferred Neoproterozoic age (Glen et al., 2013) is called into question on the basis of the zircons used.|Gabbro.|basic intrusive rock|||Y||17-JAN-23
Top-Crossing Sandstone Member|36828|Top-Crossing Sandstone|35763|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian||||deposition|Permian||||||||No|23859|23859|||||Type Locality: 404000E, 6742800N||siliciclastic sedimentary rock|||N||17-JAN-23
Torowoko Formation|82687|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Devonian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Metasedimentary sequences containing metavolcanic (mafic?) intervals. Characterised by linear zones of high magnetic intensity sourced at depths of 300-1000 m.|metasedimentary rock|||N||11-SEP-23
Torrington Pendant|27589|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Permian|||||Carboniferous||||||||No|29988|||||||||||N||17-JAN-23
Torrowangee Group|18460|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Ediacaran|||||Cryogenian||||||||No|43383|||||||Sandstone, quartzite, siltstone, shale +/- pyrite, flaggy limestone, sandy limestone, dolomite, polymictic (para)conglomerate, diamictite, pebbly siltstone/mudstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Torrumbarry Clay|18467|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wunghnu Group|20670|||Zanclean||||deposition|Zanclean|||||||VIC|No|31746|42966|||||Mapped by Lawrence (1975) as Torrumbarry Clay and correlated with Calivil Fm. by Lawrence (1975) and Brown and Stephenson (1991); interpreted as White Hills Gravel by Cherry and Wilkinson (1994). Also known as Axedale clay (Edwards et al, 1998).|Clay.|sediment|||N||17-JAN-23
Torwood Granodiorite|23028|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Arthursleigh Suite|31547|Devonian||||intrusion|Devonian||||||||No|64238||B.G.Jones|10-APR-81||||Pale grey, medium - coarse-grained, equigranular granodiorite and tonalite. Low to medium K, low Th and U responses; high magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Tottenham Subgroup|30980|Tottenham Formation|23030|||Yes|Subgroup|Formal|Variation of reserved name|Described|Girilambone Group|27158|||Darriwilian|||||Tremadocian||||||||No|43441|||||||||||N||17-JAN-23
Touchwood Formation|24040|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Devonian||||deposition|Upper Devonian||||||1000|NSW|No|40134|40134|E.C.Leitch|19-NOV-79|||To be used in Port Macquarie district.|Siltstone, sandstone, paraconglomerate, basaltic breccia, keratophyric andesite.|siliciclastic sedimentary rock|basic volcanic rock|forearc|N||17-JAN-23
Touga Granite|18477|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Oberon Supersuite|31533|Carboniferous||||magmatic crystallisation|Carboniferous|325.5|2.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||Briefly described. Formal name not intended in 1991, but now formally recognised by GSNSW and published in GA Record 2010/31 (RefID 66300). To be described in: TRIGG S. J. and CAMPBELL L. M. 2011. Moss Vale 1:100 000 Geological Sheet 8928, Explanatory Notes. Geological Survey of New South Wales. In preparation.|Even- and medium-grained (2-3 mm) melanocratic and quartz-poor hornblende granodiorite, containing very pale green vitreous plagioclase, biotite, amphibole and very clear quartz.|acid intrusive rock|||Y||17-JAN-23
Toukley Coal Member|18482|Toukley Coal Lens|18481|||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Catherine Hill Bay Formation|3791|||Lopingian||||deposition|Lopingian||||||||No|37083||||||This Member was dropped. Formerly of Catherine Hill Bay Formation, Moon Island Beach Subgroup, Newcastle Coal Measures. Name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Coal with minor bands [of what?].|organic rich sedimentary rock|||N||17-JAN-23
Tout Intrusive Complex|18490|Tout Complex|18489|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Fifield Suite|77333|Wenlock|439.6|8.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Katian|439.6|8.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|Yes|33004|40365|Stroud W.J.|28-FEB-73|||Also used in GSNSW seamless geology dataset 2021, 2023. Previously informally known as Flemington Intrusion.|Dunite, pyroxenite, hornblende quartz monzonite, hornblende pyroxenite, gabbro, olivine pyroxenite, monzodiorite|ultramafic intrusive rock|intermediate intrusive rock||Y||13-JUN-23
Towallum Basalt|18492|Towallum basalt|18493|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Koukandowie Formation|9839|||Jurassic||||eruption|Lower Jurassic|187|5||||50||No|43881||||||Max Age: 187 (+/-) 5 Ma.  Formerly considered part of the Walloon Coal Measures.|Vesicular tholeiitic basalt, volcaniclastics.|basic volcanic rock||oceanic backarc|N||17-AUG-23
Towamba Granodiorite|23031|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Towamba Granite in Chappell et al (1991), but formal name not intended.|Hornblende granodiorite|acid intrusive rock|||Y||17-JAN-23
Towgon Grange Tonalite|77045|Towgon Grange Granodiorite|29072|||Yes|Formation, beds|Formal|Variation of published name|Described|||Clarence River Supersuite|36112|Lopingian||||intrusion|Lopingian|255.4|1.2||||||No|70876||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards.|Medium to coarse-grained, equigranular to weakly porphyritic, hornblende-biotite granodiorite, tonalite, quartz-diorite and diorite|acid intrusive rock|intermediate intrusive rock||Y|I-type|16-OCT-23
Town Beach Diorite|72989|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Triassic||||intrusion|Cisuralian|||||||NSW|Yes|63763||Och, D. (GSNSW)|29-MAR-07|||Collective name for serpentinite melange at Town Beach (see Lithology).  Map sheet 9435-2S; nearest town: Port Macquarie. To be published in 2007 series Quarterly Notes/GSNSW.|Serpentinite melange at Town Beach, intruded by small body of fine dark diorite, and later inhomogeneous pegmatitic gabbro.|intermediate intrusive rock|||Y||17-JAN-23
Towneys Creek Monzogranite|77000|Towneys Creek Adamellite|24533|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenbog Suite|7361|Lower Devonian|396||isotopic, K/Ar|intrusion|Late Silurian||||||||No|69270||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. See previous name for definition. Also used in GSNSW seamless geology dataset 2021.|Hornblende-biotite, muscovite-biotite, monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Towradgi dolerite|18520|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Middle Triassic|243|10||intrusion|Lopingian||||||||No|40044||||||Not used in GSNSW seamless geology datasets 2021-2023, but discussed in GA alkaline rocks dataset report. Available analysis suggests sub-alkaline, but the the presence of both K-felspar and olivine implies more alkalic than the geochemistry indicates. Included within the shoshonitic province by Carr (1998); assumed to be shoshonitic. Available dates are Mid-Triassic, Carr and Facer (1980). Age range extended herein to include the possibility that these rocks overlap with the alkaline shoshonitic of the Gerringong Volcanics.|Dolerite sill(?).|basic intrusive rock|||Y||07-JUN-23
Traegers Granite|82688|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Famennian|||inferred||Frasnian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Red-orange, fine- to medium-grained, seriate-inequigranular biotite?hornblende granite with rare intermediate microgranitoid enclaves. Weakly porphyritic granite with a granophyric groundmass occurs locally at the pluton margins.|acid intrusive rock|||Y|I-type|10-SEP-23
Tragowel Member|18525|||||Yes|Member, phase|Formal|Other new published name|Defined|Loxton Sand|10825|||Zanclean||||deposition|Zanclean||||||25|VIC|No|34757|42966|||||Of Parilla Sands; later this latter unit was renamed Loxton Sand. Only differentiated in VIC.|White clay and silt sequence.|regolith|||N||17-JAN-23
Tralee Coal Member|23037|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||G.W.Richards|03-AUG-78|||Originally reserved for S.Butel. This name revived by GSNSW 14-JUN-2012. Used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, seam thickness ranges, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Trangie Formation|29533|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Pleistocene||||deposition|Piacenzian||||||58|NSW|No|43277||Meakin N.S., Watkins J.J.|02-AUG-95|||Nyngan-Walgett area|||||N||17-JAN-23
Tranquille Dacite Member|39263|Tranquille|36749|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian|||inferred|eruption|Serpukhovian|||inferred||20|130|NSW|Yes|50613|50613|Roberts J.|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Originally reserved as Tranquille.  Volcanic member of the Gunnan package (informal grouping of stratigraphically recognisable distinctive, mappable units)|Grey to brown dacitic to andesitic ignimbrite with plagioclase, hornblende, biotite, rare quartz, opaque minerals and pumices. Groundmass largely chloritic.|acid volcanic rock|||N||17-JAN-23
Transmission Limestone Member|27303|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician|||||||NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden||carbonate sedimentary rock|||N||17-JAN-23
Trealmont Quartzite|18564|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Pridoli|||||Pridoli||||||60|NSW|No|43476|40328|||||Used in June 1998 version of Dubbo, 2nd ed.|Quartzose sandstone, lithic quartzose sandstone, quartzite.|metasedimentary siliciclastic rock|||N||17-JAN-23
Tremaine Tuff Member|77148|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Currabubula Formation|5055|||Carboniferous||||eruption|Carboniferous||||||||No|68003|||||||Lightly welded crystal vitric tuff. Heulandite-rich.||||N||17-JAN-23
Tresylva mafic-ultramafic|82719|Tresylva Complex|18574|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. Apparently a deliberate downgrading of published name Tresylva Complex.|Possible Alaskan-type intrusive complex, including (drilling-determined) hornblende pyroxenite, hornblende granite and uralitised microgabbro, defined by intense aeromagnetic anomaly.|ultramafic intrusive rock|acid intrusive rock||Y||13-JUN-23
Trevallyn Conglomerate Member|25553|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Ararat Formation|24663|||Mississippian||||deposition|Mississippian||||||||No|44833||||||Previously regarded as belonging to the Bingleburra Formation. Lithology description from GSNSW seamless geology 2023.|Thick-bedded, coarse-grained conglomeratic lithic sandstone, conglomerate. Volcanic clasts predominate (85%) with 8% sedimentary clasts and 6% plutonic clasts. Sandstone also contains ignimbrite clasts.|siliciclastic sedimentary rock|||N||28-SEP-23
Triangle Formation|29502|Triangle Group|18587|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Devonian||||deposition|Silurian||||||3000||No|22679|23214|||||Used on 1997 Bathurst 1:250 000 sheet. Rockley-Gulgong Volcanic Belt. Rather different to Triangle Group. In RefID 70297(Bathurst Metallogenic map)  this is shown as part of the Cabonne (formerly Kenilworth) Group while its two Members (Budhang and Mozart) are shown as part of the Adaminaby Group [?]. 2011 review suggests this unit (previously considered to be Ordovician) may be Siluro-Devonian with exotic blocks of Ordovician chert and Silurian limestones.|Volcanic and quartz sandstone, siltstone, phyllite, metabasalt, chert, slate; minor actinolite schist.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Triassic felsic to mafic volcanics 76708|76708|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Triassic|205|||eruption|Lower Triassic|245|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly a bimodal mixture of mafic and felsic volcanics; may include andesites|basic volcanic rock|acid volcanic rock||N||17-JAN-23
Triassic granites 76700|76700|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Triassic|205|||intrusion|Lower Triassic|251|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic intrusive rocks.  Range in composition from alkali feldspar granite to tonalite; includes associated rocks such as migmatite and minor gabbro and diorite.|acid intrusive rock|||Y||17-JAN-23
Triassic sedimentary rocks 76703|76703|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Triassic|205|||deposition|Lower Triassic|251|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset, and 'Pre-Cz geology, NSW & Vic'.|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Triassic sedimentary rocks 76704|76704|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Middle Triassic|230|||deposition|Lower Triassic|251|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Triassic sedimentary rocks 76706|76706|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Middle Triassic|238|||deposition|Lower Triassic|251|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Triassic sedimentary rocks 76707|76707|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Middle Triassic|238|||deposition|Lower Triassic|251|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset.|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Trigalong Formation|23046|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Llandovery||||deposition|Katian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes|Sub- to low-greenschist facies, laminated to thinly bedded, finely micaceous, metapelites (claystone, sandy claystone, mudstone), metasiltstone (can be siliceous), phyllite and lesser fine-grained quartzose metasandstone. Quartz veins prevalent.|siliciclastic sedimentary rock|||N||17-JAN-23
Trilobite Hill Limestone Member|24537|||||Yes|Member, phase|Formal|Resvd name published|Defined|Vandon Limestone|27304|||Upper Ordovician||||deposition|Upper Ordovician||||||29|NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden. Previously "island unit" of Percival (1976). Lithology description from GSNSW seamless geology 2023.|Grey, thin-bedded skeletal wackestone and lime mudstone (richly fossiliferous), thin-bedded fawn skeletal wackestone and shale, grey-brown wackestone with silicified bands,|carbonate sedimentary rock|||N||28-SEP-23
Trinkey Formation|18599|||||Yes|Formation, beds|Formal|Resvd name published|Described|Nea Subgroup|30034|||Lopingian|256.8|3.8|isotopic, U/Pb-Pb/Pb ion probe|deposition|Lopingian|257.46|||||258||No|43194|||||||Claystone, siltstone, fine-grained sandstone, tuff, carbonaceous claystone and tuffaceous stony coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Triple Chance pegmatite|18600|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34944|||||||||||Y||17-JAN-23
Triple Coal Member|77070|Triple seam|38311|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Waukivory Creek Formation|24087|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin. Used in GSNSW seamless geology dataset 2021.|High- and medium-volatile bituminous dull coal, contains two characteristic stone bands|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Tritton Formation|38847|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Girilambone Group|27158|||Darriwilian||||deposition|Tremadocian||||||||No|24417|||||||Clastic rocks: phyllite, sandstone, quartzwacke and quartz-mica schist.|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Troffs Formation|18606|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Trundle Group|29079|||Devonian||||deposition|Devonian||||||700||No|43507|43507||||||Medium to coarse-grained sandstone interbedded with fine sandstone and mudstone.||||N||21-JUL-23
Truganini Tuff Member|26957|Babinda Volcanics|25702|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Baledmund Formation|954|||Lochkovian||||eruption|Lochkovian|||||||NSW|No|35287|||||||Massive blue grey to white, crystal - vitric tuff containing small chloritic 'clots' or wisps.|acid volcanic rock|||N||17-JAN-23
Trundle Group|29079|Trundle beds|18619|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Emsian||||eruption|Pragian||||||2300||No|34449|22831|||||Equivalent of the Combaning Formation. Now includes rocks previously mapped as Wallingalair Group. Trundle Beds said by Turner (1993) to be late Lochkovian? Includes possible shark scales.|Fine to coarse grained, typically thick bedded quartzose sandstone, siltstone, shale, limestone, conglomerate, marl; rhyolitic to dacitic lavas, high level intrusives, ignimbrite, breccia and tuff, minor andesitic volcanics|acid volcanic rock||oceanic backarc|N||17-JAN-23
Trungley Hall Granite|24046|||||Yes|Formation, beds|Informal|Resvd name published|Described|Narraburra Complex|69150|Barmedman Suite|31550|Famennian|365|4|isotopic, Rb/Sr|intrusion|Famennian||||||||No|42726||Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. Age and parent deduced from Wormald et al, 2004, AJES, 51, p372.|Biotite-hornblende granite|acid intrusive rock|||Y||17-JAN-23
Trunkey Creek Slate|30219|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|43127||||||Related to "Trunkey Formation"?|||||N||17-JAN-23
Truro Volcanics|26184|||||Yes|Formation, beds|Formal|Other new published name|Defined|Normanville Group|14255|||Early Cambrian|526|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Cryogenian|642.5|3.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||300|SA|No|34536|30805|||||Age 526+/-4Ma (U-Pb), (Cooper et al, 1992). Within the Moralana Supergroup. Max age is of metagabbro from Chetwynd and part of Casterton 1:50k sheets area, Victoria. Age conflicts with younger age of enclosing Moralana Supergroup sediments.|Dark green fine grained basalt and andesite flows; cream quartz-phyric metarhyolite dykes and sills; dark green metadolerite dykes and sills; grey-green metadiorite dykes and sills; dark grey-green mafic volcaniclastic sandstones and granulestone|basic volcanic rock|metamorphosed igneous rock||N||17-JAN-23
Tucklan Formation|31015|Tucklan beds|18634|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Cabonne Group|21409|||Bolindian||||deposition|Eastonian||||||||No|43494|23170|||||To replace Tucklan beds on new Dubbo 1:250 000 sheet [advised by Simone Meakin GSNSW, March97]. Rockley-Gulgong Volcanic Belt.Adjacent to Gulgong Granite.|Dark mudstone, basalt to latite boulder conglomerate or breccia, lithic sandstone; rare chert, basalt, andesite, dolerite, latite, limestone|siliciclastic sedimentary rock|||N||17-JAN-23
Tueloga beds|83217|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Castlemaine Group|36202|||Lower Ordovician|||inferred|deposition|Furongian|||inferred|deposition||||No|73505||||||Informal name used in GSNSW seamless geology dataset 2021 as 'Castlemaine Group - "Tueloga beds" ', and shown as Furongian to Early Ordovician.|Turbiditic sandstone with lesser siltstone and mudstone; probably includes pyrrhotite-rich layers. Moderate magnetic response and variably reversely and normally magnetised.|siliciclastic sedimentary rock|||N||17-JAN-23
Tuena Formation|35029|Tuena Group|23054|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||deposition|Lower Devonian||||||||No|23048|||||||||||N||17-JAN-23
Tuffaceous Trilobite Bed|77062|Tuffaceous Trilobite Bed""|37398|||Yes|Bed|Informal|Variation of published name|Fully described|Boree Creek Formation|2330|||Wenlock|||||Llandovery||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Informal name or historic name?|Consists of thin bedded, calcareous, and tuffaceous sandstone and thin shale layers, rich in trilobite and ostracodes|siliciclastic sedimentary rock|||N||17-JAN-23
Tugalong Limestone Member|24048|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Karalinga Formation|23685|||Late Silurian||||deposition|Wenlock|||||||NSW|No|37986|37986|Hutton, A.C.|16-NOV-77||||Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Tuggerah Formation|26958|Tuggerah Sandstone|18636|||Yes|Formation, beds|Formal|Other new published name|Described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lower Triassic||||||98||No|43342|||||||Grey to green-grey laminite, red-brown claystone and siltstone, interbedded with fine- to medium-grained green-grey sandstone.|siliciclastic sedimentary rock|||N||19-JUL-23
Tuglow Suite|31649|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||Oberon Supersuite|31533|Carboniferous|||||Carboniferous||||||||No|42726||||||Other granites are likely to be added to this Suite (in Jenolan area) when geochemistry is confirmed eg. Abercorn Granite may be added (thus invalidating the Abercorn Suite in future).|||||Y||17-JAN-23
Tugrabakh Limestone Member|28291|Tugrabakh Limestone|18650|||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Wallanbah Formation|25682|||Tournaisian||||deposition|Tournaisian|||||||NSW|No|36057|36057|||||||carbonate sedimentary rock|||N||17-JAN-23
Tulcumba Sandstone|26185|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Parry Group|14916|||Tournaisian||||deposition|Tournaisian||||||230|NSW|No|43418|37987|||||Equivalent to Boiling Down Sandstone Member of Goonoo Goonoo Mudstone.|Coarse, cross-bedded feldsarenite, siltstone, conglomerate, calcareous mudstone, oolitic and bioclastic limestone.|medium-coarse grained siliciclastic rock||forearc|N||17-JAN-23
Tullamore Intrusive Complex|24539|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Lower Devonian|||||Lower Devonian|||||||NSW|Yes|40365|40365|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82||||||Y||17-JAN-23
Tullamullen Coal Member|79334|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred, overlying unit|deposition|Kungurian|||inferred, underlying unit||1.5|4.5|NSW|Yes|70791||Dawson, M. (Whitehaven Coal?)|10-FEB-16|||Proposed publication: AJES.||organic rich sedimentary rock|||N||17-JAN-23
Tullerah Sandstone Member|26960|||||Yes|Member, phase|Formal|Variation of published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|deposition|Ludlow|||inferred|||3.9|NSW|No|45075|68592|||||Previously included in Silverdale Formation. Top of the Yanawe Formation and Douro Group. Marks the end of volcanic influence.|Crystal tuff, tuffaceous sandstone. White-grey, thin-medium bedded, massive, medium-very fine grained arkosic to volcaniclastic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Tullibigeal Leucitite|35612|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Miocene|10|||eruption|Middle Miocene|14|||||||No|61964|61964|Meakin S.|19-JUN-00|||CARGELLIGO 1:250 000 map sheet.  Originally known as "Lake Cargelligo Leucite Basalt" (Stonier 1894) followed later by "Weja Hill Leucitite" (Scott 2000b). Lithological details for name reservation: Subaerial leucitite lava extrusions characterised by thermally oxidised basal scoria breccias; pebble-sized scoria beds; columnar jointed facies; vesicular facies and blocky lava facies which now form much of the outcrop. Detailed lithology in map legend of RefID: 64568, and in RefID: 61964.|Fine-grained grey to black olivine-phyric leucitite lava, breccia, and dykes.|foid-bearing volcanic rock|||N||17-JAN-23
Tullyangela Diorite|82689|Tullyangela Granite|75933|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Frasnian|382.4|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Givetian|382.4|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021.|Green-grey, equigranular, plagioclase-hornblende-pyroxene porphyritic, quartz diorite.|intermediate intrusive rock|||Y||17-JAN-23
Tumbarumba Basalt|83203|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Burdigalian|18.7|.2|isotopic, K/Ar||Chattian|23.7|.7|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021. See also Tumbarumba basalt.|Primitive undersaturated sapphire- and ruby-bearing basanite to alkali basalts and minor olivine basalts.|foid-bearing volcanic rock|basic volcanic rock||N||17-JAN-23
Tumboramboro Granite|74597|Tumboramboro|41548|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Tumboramboro Suite|69874|Devonian||||intrusion|Devonian||||||||No|64238|||||||Medium-coarse grained, massive-protomylonitic, equigranular-sparsely porphyritic, muscovite-biotite granite to granodiorite. Low to high K, Th and U; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Tumboramboro Suite|69874|Tumboramboro|41548|||Yes|Group, Suite|Formal|Variation of published name|Defined|||Wologorong Supersuite|69873|Devonian|||||Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Originally reserved as Tumboramboro by M. Scott (GSNSW).|Muscovite-biotite granite to granodiorite; fine-grained, cordierite-biotite granite with igneous and metasedimentary xenoliths; leucocratic coarse-grained muscovite-biotite granite; recrystallised metasedimentary composite gneiss with minor migmatite.||||Y||11-SEP-23
Tumut Pond Group|26961|Tumut Pond Beds|18683|||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Late Silurian|||||Early Silurian||||||||No|60086|||||||Serpentinite, gabbro xenoliths|metamorphosed ultramafic rock|metamorphosed basic igneous rock||N||17-JAN-23
Tunbridge Wells Diorite|29524|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Upper Ordovician||||intrusion|Upper Ordovician|||||||NSW|No|43640||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Intrudes the Weemalla Formation. Considered to be related to Cadia Hill Monzonite. Lith description updated from GSNSW seamless geology dataset 2023. Used in GA Alkaline Rocks dataset.|Monzodiorite to diorite.|intermediate intrusive rock|||Y||09-JUN-23
Tupia Formation|38124|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Miocene||||deposition|Miocene||||||||No|24343|24343||||||||||N||17-JAN-23
Turi Greywacke Member|18705|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||||||deposition|||||||||No|43399|43399|||||Of Goonoo Goonoo Mudstone of Crook, 1961.|||||N||17-JAN-23
Turill Coal Member|23064|||||Yes|Member, phase|Processing pending|Resvd name published|Briefly described|State Mine Creek Formation|25699|||Late Permian||||deposition|Late Permian||||||||No|68004||G.Bradley|23-MAR-84|||This reserved name had lapsed, but seems now (2002) to be used for original purpose.|Dull coal with bright layers and numerous thin carbonaceous claystone layers in lower half, and moderately thick carbonaceous and tuffaceous claystone layers in the upper half.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Turkaro Range Conglomerate Member|76174|||||Yes|Member, phase|Formal|Other new published name|Defined|Ravendale Formation|15860|||Givetian|||inferred, lithostratigraphic correlation|deposition|Givetian|||inferred, underlying unit|||||No|66623|66623|||||Defined 2010; one of three contemporaneous basal units of Ravendale Formation. Correlated with Rocky Tank Conglomerate Member and Gum Creek Member. About 380 m thick. Contains Skolithos tube trace fossils. Represents the first stage of a new sedimentary sequence after the Tabberabberan Orogeny.|Upward fining basal red-bed sequence of conglomerates, sandstones and siltstones; boulders of Teltawongee Group sandstones to 1 m in basal conglomerates; minor pale buff sandstones to 600 mm thick occur intermittently in middle of the sequence.|siliciclastic sedimentary rock|||N||17-JAN-23
Turon River Grits|29082|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Lambie Group|10103|||Devonian|||||Devonian||||||140||No|32708||||||Lambie Basin.|Oligomictic to polymictic conglomerate, coarse arenite and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Turondale Formation|18720|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crudine Group|4970|||Pragian|410|4||eruption|Lochkovian|411.3|3|isotopic, U/Pb-Pb/Pb ion probe|||900|NSW|No|43517|43517|||||Bathurst 1:250 000|Thickly-bedded, crystal-lithic, rhyolitic to rhyodacitic volcaniclastic sandstone interbedded with lesser thinly-bedded, pelagic and volcaniclastic sandstone, siltstone and phyllitic shale; minor rhyolitic tuff and conglomerate.|acid volcanic rock|siliciclastic sedimentary rock||N||11-SEP-23
Turondale and Waterbeach Formations undiff.|32519|Undifferentiated Turondale & Waterbeach Formation|37432|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Crudine Group|4970|||Devonian|||||Devonian||||||||No|43782||||||Informal combination of units used at 1:250 000 and 1:100 000 scale in Bathurst 250k sheet area.|||||N||17-JAN-23
Tuross Head Tonalite|27918|Tuross Head Granodiorite|26963|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moruya Suite|12371|Upper Devonian||||intrusion|Middle Devonian||||||||No|35109||||||Defined as Granodiorite.|Tonalite, quartz diorite, granodiorite.|acid intrusive rock|||Y||17-JAN-23
Turrallo Quartz Diorite|18725|Turallo Quartz Diorite|40937|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Turrallo Suite|67914|Pragian||||intrusion|Pragian||||||||No|34481||||||See also Turallo Granite ref  Chappell et al (1991).  Turallo Suite is Pragian according to 2nd edition Taralga 100K map (GSNSW).|Quartz diorite, quartz diorite porphyry, dacite porphyry.|intermediate intrusive rock|||Y||17-JAN-23
Turrallo Suite|67914|Turallo Suite|31645|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Devonian|||||Devonian||||||||No|64238||||||Replaces the misspelt Turallo Suite used on Lachlan Fold Belt Granites map.|Mainly quartz monzodiorite and monzonite.|intermediate intrusive rock|||Y||10-SEP-23
Turtle Rock Volcanics|18731|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Bathonian|||inferred|eruption|Toarcian|||inferred|||||No|43500||||||Previously considered to be Cenozoic. Used in GSNSW seamless geology dataset 2021, where the age is shown as Jurassic|Trachytic necks, lavas and volcanic rocks; quartz feldspar porphyry; breccia; olivine basalt; trachytic intrusives/volcanic necks; and dolerite necks.|intermediate volcanic rock|acid volcanic rock||Y||17-AUG-23
Tuting Monzogranite|82690|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Triassic|250||isotopic, U/Pb||Lower Triassic|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. This 250 Ma age determination is anomalous and needs verification. Is associated with W-Mo-Cu-(Au-Bi-Te) mineralisation.|Biotite monzogranite.|acid intrusive rock|||Y|I-type|27-AUG-23
Twin Tanks Formation|82693|Twin Tanks Metamorphics|79957|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Silurian|||inferred||Cambrian|||inferred|||||No|||||||Curved magnetic trends of low to moderate intensity adjacent to granite basement. Used in GSNSW seamless geology dataset 2021.|Metasedimentary mica schist and gneiss. Common altered/retrograded cordierite and minor actinolite porphyroblasts. Minor granite. Metamorphism up to upper greenschist (biotite-grade).|metasedimentary rock|foliated metamorphic rock||N||17-JAN-23
Twins Creek Granodiorite|32250|Twins Creek Gneiss|18741|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|60078|||||||Hornblende-biotite granodiorite, tonalite, quartz monzodiorite, diorite; common amphibolite xenoliths|acid intrusive rock|||Y||10-SEP-23
Two-Thirty breccia complex|83262|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Two-Thirty intrusive complex|83259|||Llandovery|||inferred||Llandovery||||alteration||||No|73287||||||Informal/invalid, prospect scale grouping of the breccia rocks at the Two-Thirty Prospect, Junee-Narromine volcanic belt, Macquarie Arc, Lachlan Orogen. Used interchangeably with the Two-Thirty breccia.|Comprises dominantly polymict magmatic-hydrothermal breccias with significant variation, containing cemented, igneous cemented and tectonic-hydrothermal breccia facies; contains Cu-Au (Mo) mineralisation and variable syn-brecciation alteration.|metasomatic rock|||N||17-JAN-23
Two-Thirty intrusive complex|83259|||||Yes|Group, Suite|Informal|Other new published name|Described|||||Llandovery|438.8|4.4|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Upper Ordovician||||intrusion||||No|73287||||||Informal/invalid, prospect scale grouping of the intrusive rocks at the Two-Thirty Prospect, Junee-Narromine volcanic belt, Macquarie Arc, Lachlan Orogen. Includes Two-Thirty Porphyry, Zero porphyry and other unnamed units. Intrusive phases divided into pre-, syn-, and post-mineralisation. Syn-mineralisation porphyries emplaced between 448 +/- 4.5 Ma and 447.1 +/- 4.5 Ma. Additional zircon U-Pb ages: 447.3+/-4.5 Ma, 448.0+/-4.5 Ma. Includes mafic, aplite and minor pebble dykes.|Basaltic dykes, monzonite, porphyry, quartz monzonite porphyry, biotite quartz monzonite, breccia.||||Y||17-JAN-23
Two-Thirty porphyry|83264|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Two-Thirty intrusive complex|83259|||Upper Ordovician|||inferred, geological correlation||Upper Ordovician|448|4.5|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion||||No|73287||||||Informal/invalid, prospect scale unit at the Two-Thirty Prospect, Junee-Narromine volcanic belt, Macquarie Arc, Lachlan Orogen. Used interchangeably with the Two-Thirty Porphyry. Of the Two-Thirty intrusive complex.|Monzonite porphyry.|intermediate intrusive rock|||Y||17-JAN-23
Twofold Bay Formation|18746|Two Fold Bay Formation|18744|||Yes|Formation, beds|Formal|Other new published name|Fully described|Merrimbula Group|11713|||Frasnian||||deposition|Frasnian||||||400||No|43461||||||Base unit of Merrimbula Group. Contains fish fauna near top of the formation.|Fluvial sandstone with mudrocks and conglomerate; local fossil soil at base|siliciclastic sedimentary rock|||N||17-JAN-23
Tyagong Serpentinite|18747|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Early Silurian|||||Early Silurian|||||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76||||||N||17-JAN-23
Tycannah Rhyodacite Member|37916|Tycannah|30088|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Lark Hill Formation|10194|||Carboniferous||||eruption|Carboniferous|||||||NSW|Yes|24605|24605|Roberts, J,|27-FEB-96|Sutherland, F.L.|22-JAN-03||||||N||17-JAN-23
Tyringham East Granodiorite|80918|Tyringham East granite|80790|||Yes|Formation, beds|Formal|Variation of published name|Described|||Billys Creek Suite|82360|Upper Triassic|||||Upper Triassic|236.5|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|||||||Published in RefID 71628 Bryant (2017), GSNSW Report GS2017/0408, pp17-51 to 17-53. Of Billys Creek Suite.|Dark grey, massive, fine to medium-grained granite; probably granodiorite or tonalite; extensive biotite and sericite alteration.|acid intrusive rock|||Y|I-type|17-JAN-23
Uargon Formation|83196|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Langhian|15.2|.2|isotopic, Ar/Ar||Burdigalian|18|.2|isotopic, Ar/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Basalt, trachybasalt (hawaiite); dark to medium green, white-weathering, porphyritic to equigranular or aphanitic. Minor autobreccia.|basic volcanic rock|||N||17-JAN-23
Ugalong Dacite|18770|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Koetong Suite|9703|Wenlock|428.2||isotopic, U/Pb|eruption|Llandovery|433.4|3.1|isotopic, U/Pb-Pb/Pb ion probe|||5000|NSW|Yes|35503|35503|Kemezys K.J.|15-JAN-76|Hawke, J.|12-OCT-76|Now believed to be Early Silurian - 1999 FORBES 1:250 000 sheet.   Formerly mapped as Ungarie Granite (Pogson et al 1967). The former Ungarie Suite of Chappell et al (1991) is now replaced by Koetong Suite (of the Koetong Supersuite).  Located closely with Koetong Suite granites.|Two distinct fault-bounded bodies of massive, porphyritic, mid- to dark grey dacite - crystal-rich biotite dacite and rhyodacite lavas and pyroclastics.|acid volcanic rock||oceanic backarc|N|S-type|17-JAN-23
Ulah Formation|18779|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mumbil Group|13411|||Ludlow||||deposition|Wenlock||||||500||No|35258||||||Originally included in the Panuara Formation.|Graptolite-bearing quartzofeldspathic shale, coarse micaceous horizons, local basal siltstone.|fine grained siliciclastic rock|||N||17-JAN-23
Ulan Coal|18784|Ulan Coal Measures|18783|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Charbon Subgroup|3917|||Late Permian|||inferred|deposition|Late Permian|||inferred|||||No|38603||||||Radiometric age from tuffaceous claystone in the C Marker bed, which separates the upper and lower parts of the Ulan Coal.|Coal - in seven distinct plies (ply A to ply G), primarily dull with minor bright bands, tuffaceous claystone (intra-seam), carbonaceous claystone and siltstone.|organic rich sedimentary rock|||N||17-JAN-23
Ulan Coal Member, Lower|82443|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Ulan Coal|18784|||Permian|||||Permian|253.8|1.9|inferred, geological correlation|deposition||||No|||||||Used in GSNSW seamless geology dataset 2021.|Coal, dull with minor bright, occasional carbonaceous and tuffaceous claystone.|organic rich sedimentary rock|||N||17-JAN-23
Ulan Coal Member, Upper|82446|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|||Ulan Coal|18784|Permian|||inferred||Permian|253.8|1.9|inferred, underlying unit|deposition||||No|||||||Used in GSNSW seamless geology dataset 2021.|Coal, dull coal with minor bright, occasional carbonaceous and tuffaceous claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Ulan Quartz Monzonite|32528|Ulan Granite|32401|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gulgong Suite|31452|Visean||||intrusion|Visean||||||||No|23043|23170|Cameron R.|22-JUN-98|||Dubbo 1:250 000 sheet area.|Megacrystic biotite subporphyritic quartz monzonite|intermediate intrusive rock|||Y||17-JAN-23
Ulandra Granite|28302|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Mishurley Creek Suite|82576|Llandovery|||inferred|intrusion|Llandovery|||inferred|||||No|29993|22638|||||Defined 1995. Cootamundra 1:250 000 sheet area. Ulandra Granite chem parent = Ulandra Suite (Chappell et al map, 1991). Now (2021) of Mishurley Creek Suite. Note: other units in this suite are Pridoli to Lochkovian age (late Silurian to early Devonian, rather than early Silurian).|Strongly foliated (to gneissic), medium- to coarse-grained granite; massive (undeformed) coarse-grained granite.|acid intrusive rock|foliated metamorphic rock||Y|S-type|17-JAN-23
Ulandra Suite|31650|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Ulinbawn Conglomerate Member|25564|Ulinbawn Member|23082|||Yes|Member, phase|Formal|Resvd name published|Defined|Rast Group|23935|||Lower Devonian||||deposition|Lower Devonian||||||30|NSW|No|41394|41394|||||Reserved as Ulinbawn Member (Trigg 1982).|Muddy cobble conglomerate and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Ulinda Sandstone Member|70038|Ulinda|23083|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Digby Formation|5470|||Lower Triassic||||deposition|Lower Triassic||||||73||No|43194|||||||Thin lithic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Ulladulla Mudstone|29086|Ulladulla tuffaceous mudstones and sands|18793|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Artinskian||||deposition|Artinskian|||||||NSW|No|43346|31081|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Umagarlee Monzodiorite|33389|Umagarlee Granite|30911|||Yes|Formation, beds|Formal|Resvd name published|Described|||Wuuluman Suite|67991|Namurian||||intrusion|Tournaisian||||||||No|23043||Scott M.|30-JUN-98|||Wellington & Euchareena 1:100 000 sheet area.|K-feldspar megacrystic mafic quartz monzodiorite (sphene, magnetite, hornblende, biotite)|intermediate intrusive rock|||Y||17-JAN-23
Umberatana Group|18806|||||Yes|Group, Suite|Formal|Other new published name|Fully described|Heysen Supergroup|24309|||Ediacaran|||inferred|deposition|Cryogenian|700||inferred||4500|9000||No|44538||||||Established by Thomson et al (1964). Poor age constraints. Also in Stuart Shelf, Broken Hill Block, and Stansbury Basin areas.|Tillite; sandstone; siltstone; arkose; dolomite; quartzite; conglomerate; shale; greywacke.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||14-JUN-23
Umbiella nephelinite|25566|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Middle Jurassic|167||isotopic, K/Ar||Lower Jurassic|||inferred|intrusion||||No|33349||||||For use in Alkaline Rocks data compilation. Approximately 35 km SE of Carcoar. Location from Jaques 2008. =Umbiella Creek of Jaques 2008. Nephelinite plug. Jaques (2008) reports a K-Ar age of 167 Ma (source not identified). See also refs: Ferguson et al. 1979 ?RefID 46920?; Ferguson 1980 RefID 36449.|Nephelinite.|foid-bearing volcanic rock|||Y||17-JAN-23
Unanderra Coal Member|26966|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Pheasants Nest Formation|26100|||Late Permian||||deposition|Late Permian||||||||No|29900||||||Of Pheasants Nest Formation (advice from Roger Cameron's Sydney Basin spreadsheet OCT-2010). Lithology description from GSNSW seamless geology 2023.|Shale and coal.|organic rich sedimentary rock|||N||28-SEP-23
Underbank Mudstone Member|24054|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Flagstaff Formation|6721|||Visean||||deposition|Visean||||||520||No|40883||D.Lindley|14-JUN-83|||New member of the Flagstaff Sandstone.|Fossiliferous grey to black mudstone interbedded with fine to medium-grained lithic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Undercliffe Falls Monzogranite|41352|Undercliffe Falls Adamellite|18827|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bungulla Suite|67899|Lower Triassic|245.4|||intrusion|Lower Triassic||||||||No|60079||||||Previously in the Moonbi Suite, then Bungulla Suite of the Stanthorpe Supersuite. See also Undercliffe Falls Granite, also used by GSQ in 2007. See misspelled Undercliff Falls Granite, as has SHRIMP age. Of Bungulla Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Coarse monzogranite characterised by flesh- to white-coloured K-feldspar phenocrysts set in a coarse groundmass of plagioclase, quartz, K-feldspar and abundant biotite and hornblende.  Mafic enclaves abundant|acid intrusive rock||continental margin arc|Y|I-type|27-AUG-23
Ungarie Granite|18839|Wyalong Granodiorite|20691|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Koetong Supersuite|9704|Lower Devonian|403|8|isotopic, K/Ar|intrusion|Llandovery|434.4|2.3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71213||||||Originally of Griffin (1960). Age: 403 +/- 8 Ma on biotite, 410 +/- 8 Ma on hornblende. Previously "Wyalong Granite", "Wyalong Granodiorite".  The former Ungarie Suite of Chappell et al (1991) replaced by Koetong Suite (of the Koetong Supersuite). Includes a northern extension known as the Derrida Phase - age 426.3 +/- 3.3 Ma u-Pb SHRIMP. See also RefID 67060 p505.|Medium-grained  equigranular to sporadically porphyritic biotite granodiorite and granite with biotite-rich microgranular enclaves and metasedimentary xenoliths. Contains the Derrida Phase.|acid intrusive rock|||Y|S-type|17-JAN-23
Upson Downs Sandstone|18966|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Devonian||||deposition|Devonian||||||||No|29993||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Ural Volcanics|18968|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Rast Group|23935|||Lower Devonian|410|8|isotopic, U/Pb-Pb/Pb ion probe|deposition|Late Silurian|421|2|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation||1000||No|44534||||||NOMENCLATURAL HISTORY (reference source is RefID: 61964): Volcanic and volcaniclastic parts of the former "Lake Cargelligo Group" (Griffin 1959, 1960). Rayner (1961, 1969) also named the same rocks "Shepherds Hill Volcanics", which were then considered to be an extension of the Ural Volcanics by Scheiber and Basden (1998). Original nomenclature now remains as part of the Rast Group. Includes the Bootoowa Fossil and Karingal Rhyolite Members and the Melougel Ignimbrite. Basal portion formerly termed "Preston beds" by Watt (in Maniw 1980b).|Rhyolitic to dacitic lavas, breccias, and intrusives; volcaniclastic sandstone and siltstone, minor slate, phyllite, mudstone.|acid volcanic rock|medium-coarse grained siliciclastic rock||N|A-type|17-JAN-23
Uralla Granodiorite|18971|Uralla granodiorite|18974|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Uralla Suite|18973|Middle Triassic|245|16|isotopic, Rb/Sr|intrusion|Late Permian|251||isotopic, Rb/Sr|||||No|31806||||||Age most likely to be late Middle Permian p35 98/29431. Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Within the Uralla Supersuite.
Age only constrained by old Rb/Sr analyses.|Equigranular medium grained hornblende-biotite granodiorite with mafic and/or porphyritic variants.|acid intrusive rock|||Y|I-type|22-AUG-23
Uralla Suite|18973|Uralla Plutonic Suite|18972|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Uralla Supersuite|67894|Lower Triassic|||||Late Permian||||||||No|38822||||||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007. NOT used in GSNSW seamless geology dataset 2021, but used in 2023. Age range from constituent units.|Granodiorite to tonalite, with monzodiorite, monzogranite, quartz-diorite and dacite, minor gabbro, diorite and felsic pegmatites.||||Y||22-AUG-23
Uralla Supersuite|67894|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Middle Triassic|243||||Late Permian|251|||||||No|24513||||||New England Orogen. I-type granites of the New England Batholith. Age range from constituent units. Note: GSNSW Seamless geology 2023 shows this supersuite as Middle Triassic, but constituents as Late Permian, Early Triassic and Middle Triassic.|Compositionally diverse: from gabbro and diorite through to monzogranite.|basic intrusive rock|acid intrusive rock||Y|I-type|22-AUG-23
Urambie Granodiorite|18975|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Silurian||||intrusion|Wenlock|428|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|41394|41394||||||Foliated, equigranular to porphyritic ?cordierite-biotite granodiorite (S-type). Abundant massive and foliated sedimentary xenoliths and microgranodioritic enclaves|acid intrusive rock|||Y|S-type|17-JAN-23
Urana Formation|18976|Urana Group|34012|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cisuralian||||deposition|Pennsylvanian|||||0|887|NSW|Yes|40324|40324|P.O'Brien|28-MAR-85|NSW SNSC|27-FEB-91|Previously Cape Jervis Beds. Type section in AOG Jerilderie 1, Ovens Graben. Considered to be the glacio-marine equivalent of Wild Duck Formation? Thickness is 800m in type section. Said to be of Nadda Basin in SA in 2021.|Semi-consolidated to unconsolidated deposits.Three main facies: massive to lam'd siltst.+mudst; massive to parallel lam'd sst with rare pebbles + mud clasts; fine- to med.gr.diamictite.|siliciclastic sedimentary rock|||N||17-JAN-23
Uranquinty Granite|26971|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|42497||||||||acid intrusive rock|||Y||17-JAN-23
Urialla Granite|27247|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Urialla Suite|31653|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|39800|36413|Richardson S.J.||Hawke, J.|20-FEB-79||Medium-grained biotite granite, granodiorite, monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Urialla Suite|31653|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Uriarra Volcanics|18992|Uriarra volcanics|18993|||Yes|Formation, beds|Formal|Other new published name|Defined|||Laidlaw Volcanic Suite|10023|Late Silurian||||eruption|Early Silurian|||||||ACT|No|12185|45147||||||Dark grey to pink rhyodacite ignimbrite and air-fall tuff, fine-grained bedded ashstone|acid volcanic rock|||N||17-JAN-23
Uringery Trachyte Member|81952|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Naman Formation|81948|||Cenozoic|||inferred||Cenozoic|||inferred|||||No|72700|||||||Porphyritic trachyte with minor aegerine and aenigmatite. Common radial columnar joints.|intermediate volcanic rock|||N||17-JAN-23
Utah Lake Suite|79961|Utah Lake plutonic complex|78368|||Yes|Group, Suite|Informal|Resvd name published|Mentioned|||||Middle Devonian|||inferred||Middle Devonian||||||||No|71965||Purdy, D. (GSQ), Hegarty (GSNSW)|03-JUL-17|||Includes a cluster of non-outcropping, non-magnetic granites in the southern half of the Wanaaring 1:100k map sheet and onto the northern  part of the Utah Lake map sheet. The only age for this complex is that of the Barrona granite (389 Ma, recalculated K-Ar; Richards and McDougall 1986).|Granite|acid intrusive rock|||Y||17-JAN-23
Vacy Ignimbrite Member|26191|||||Yes|Member, phase|Formal|Variation of published name|Defined|Newtown Formation|26078|||Serpukhovian|||inferred|intrusion|Serpukhovian|||inferred|||16|NSW|Yes|31228|31228|Hamilton G.|16-MAR-73|||Used in GSNSW seamless geology dataset 2021.|Red micaceous rhyodacitic ignimbrite overlain by grey micaceous dacitic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Vale Beder Ignimbrite|19031|||||Yes|Bed|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|31852||||||||acid volcanic rock|||N||17-JAN-23
Vale View Facies|40926|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Hawkins Volcanics|8184|||Wenlock|||||Wenlock||||||||No|50230||||||Briefly described.|Off-white, porphyritic vitric tuff with coarse-grained phenocrysts of quartz in an aphanitic matrix. Chert-like vitric tuff sporadically developed.||||N||17-JAN-23
Vales Point Coal|25576|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Moon Island Beach Subgroup|12215|||Lopingian||||deposition|Lopingian||||||||No|35873||||||Redefined as an informal coal seam and included in the Moon Island Beach Formation, marking the top of the Newcastle Coal Measures. Previously of Munmorah Conglomerate. Reinstated as unit of Moon Island Beach Subgroup. Updated from GSNSW seamless geology dataset 2021. This unit coalesces with the Wallarah Coal unit in areas.|Coal with clastic bands which range from millimetres to up to 7.9 m as a parting.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Vales Point coal seam|70050|Vales Point Coal Member|19039|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Moon Island Beach Formation|12211|||Late Permian||||deposition|Late Permian||||||||No|22857||||||Informal unit. Downgraded from Vales Point Coal Member. Has been found to converge with the Wallarah coal seam. Now generally marks top of Newcastle Coal Measures.||organic rich sedimentary rock|||N||17-JAN-23
Valla Monzogranite|76972|Valla Adamellite|19042|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Carrai Supersuite|82123|Triassic|230.7|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Upper Triassic|230.7|1.6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Used in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|Biotite monzogranite, porphyritic microgranite dykes. Granitoids of unnamed suite (Coastal granitoid belt) I-type granitoids and leucogranites|acid intrusive rock|||Y|I-type|19-JUL-23
Valla Suite|74025|||||Yes|Group, Suite|Reserved|Reserved|Unpublished||||||||||||||||||No|||Champion, D., Blevin, P. and Bultitude, R.J.|10-DEC-07|||Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|||||Y||17-JAN-23
Valley View Coal Member|77072|Valley View seam|38314|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Waukivory Creek Formation|24087|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Gloucester Basin. Used in GSNSW seamless geology dataset 2021.|High- and medium-volatile bituminous dull coal|organic rich sedimentary rock|||N||17-JAN-23
Valley View Metabasic Igneous Complex|19043|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Pridoli|||||Ludlow|||||||NSW|No|42313|42313|||||Used in GSNSW seamless geology dataset 2021.|Serpentine, metabasalt; very minor metagabbro.||||Y||24-JUL-23
Valley View seam|38314|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Late Permian|||||Late Permian||||||||No|23623||||||Of the Gloucester Coal Measures. To be replaced by Valley View Coal Member [GSNSW July-2012]|||||N||17-JAN-23
Vandon Limestone|27304|Large Flat Limestone Member|10192|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cliefden Caves Limestone Subgroup|31725|||Katian||||deposition|Katian||||||51|NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82||Limestone with stromatoporoids and conodonts.|carbonate sedimentary rock|||N||17-JAN-23
Vane Subgroup|26973|Vane Formation|19051|||Yes|Subgroup|Formal|Unknown or process pending|Described|Wittingham Coal Measures|20334|||Late Permian|||||Late Permian||||||||No|39346|||||||Coal seams, siltstone, lithic sandstone, shale, conglomerate.|organic rich sedimentary rock|||N||17-JAN-23
Vane Subgroup, Archerfield Sandstone|69448|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Wittingham Coal Measures|20334|||Tatarian||||deposition|Tatarian||||||||No|||Ollie Raymond|12-JUL-05|||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project|Coal seams, siltstone, lithic sandstone, shale, conglomerate. Well sorted quartz lithic sandstone (Archerfield Sandstone)|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Vanity Member|19057|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45147|||||||||||N||17-JAN-23
Vaux Coal Member|19066|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Vaux Seam|27921|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Vauxhall Formation|19069|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|35187|||||||||||N||17-JAN-23
Velyama Coal Member|23103|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|70791||D.Butel|21-SEP-78|||Note the new ORIGN. This name revived by GSNSW 14-JUN-2012. Also used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash (>6% raw), bituminous  (soft coking) coal, seam splits and thins to the south-east|organic rich sedimentary rock|||N||17-JAN-23
Verandah Creek Diorite|19078|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|60085|||||||||||Y||17-JAN-23
Verulam Oolite Member|19083|Verulam oolite member|19084|||Yes|Member, phase|Formal|Unknown or process pending|Described|Wootton beds|20622|||Visean||||deposition|Visean||||||||No|30074||||||Also considered part of Flagstaff Formation by some authors - within interbeds of grey mudstone in the Lostock Sandstone Member (Dungog NSW, 1:100 000 sheet 9233, 1991).  Now everywhere referred to Verulam Oolite Member of the Wootton beds - see also.|Limestone, oolith-bearing sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Victoria Pass Claystone Member|26192|Victoria Pass Sandstone|19093|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Caley Formation|28198|||Triassic||||deposition|Triassic|||||||NSW|No|43362|34205||||||||||N||17-JAN-23
Victoria Tunnel Coal|19109|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|Adamstown Subgroup|107|||Lopingian||||deposition|Lopingian||||||4||No|39292||||||This Formation was downgraded to the informal Victoria Tunnel coal seam instead and was considered part of the Adamstown Formation. Original unit of Lambton Subgroup but reinstated ~2015 as unit of Adamstown Subgroup. Updated from GSNSW seamless geology dataset 2021.|Coal and minor bands [of what?].|organic rich sedimentary rock|||N||14-AUG-23
Victoria Tunnel coal seam|35119|Victoria Tunnel Coal|19109|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Adamstown Formation|105|||||||deposition|||||||||No|23055||||||Informal unit. Raising of Nobbys Tuff to Formation level has changed base of Adamstown Formation to now include the Victoria Tunnel coal seam.||organic rich sedimentary rock|||N||17-JAN-23
Vineyard Lookout Volcanic Agglomerate Member|27248|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Pokolbin Hills Volcanics|26106|||Pennsylvanian||||eruption|Pennsylvanian|||||||NSW|No|29915|29915|||||Used in GSNSW seamless geology dataset 2021.|Conglomerate, agglomerate of trachytic and trachyandesitic composition, trachyte and trachyandesite.||||N||20-JUL-23
Violet Hill Volcanic Member|19123|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Yagon Siltstone|20747|||Visean|331|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Visean|331|5|isotopic, U/Pb-Pb/Pb ion probe|||120|NSW|No|32868|36057||||||Basal conglomerate with dacitic boulders; dacitic volcanics overlain by tuffaceous sandstone and siltstone.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Waalima Granodiorite|33675|Waalimma Granodiorite|23114|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Lewis P.|20-AUG-99|||Reserved as Waalimma Granodiorite. Source of name misspelt Mount Walimma on Bega-Mallacoota 1:250 000 geological sheet.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Wadbilliga Monzogranite|76990|Wadbilliga Adamellite|23116|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bemboka Suite|30473|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology|Leucocratic, fine- to coarse-grained and porphyritic granite and monzogranite, sporadic zenoliths|acid intrusive rock|||Y|I-type|29-SEP-23
Wagonga Group|19196|Wagonga Formation|19195|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Llandovery||||deposition|Middle Cambrian||||||||No|42448||||||Age: Late Cambrian- Early Silurian in Bega-Mallacoota 1:250000 Geological Sheet SJ/55-4, SJ/55-8: Explanatory Notes (1994).|Chert, conglomerate, siltstone, sandstone, basic volcanics.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Wahringa Limestone Member|30505|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fairbridge Volcanics|25904|||Katian||||deposition|Darriwilian||||||88||No|22857|23170|Scott M.|20-SEP-96|||Wellington 1:100 000 sheet area.  Age:L Late Darriwillian - Early Gisbornian.|From the base: a fossiliferous, pink and cream coloured limestone, passing up into a muddy orange brown dirty limestone (richly fossiliferous), and topped by a massive grey limestone with occasional stromatoporoid fossils.|carbonate sedimentary rock|||N||17-JAN-23
Walbrook Metabasalt Member|27656|||||Yes|Member, phase|Formal|Resvd name published|Described|||||Lower Devonian||||eruption|Late Silurian||||||||No|42712||Stuart-Smith P.|01-JUN-93|||Bathurst 1:250 000 sheet area. DESC in 94/27645.||basic volcanic rock|||N||17-JAN-23
Walcha Road Monzogranite|41073|Walcha Road Adamellite|19222|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moonbi Supersuite|36465|Lopingian|249|3|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Lopingian|253.8|1.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|24366||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Granodiorite within the Moonbi Supersuite.|Coarsely porphyritic hornblende-biotite monzogranite with equigranular groundmass.|acid intrusive rock|||Y|I-type|22-AUG-23
Walcha Volcanics|83466|Walcha Province Volcanics|69675|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lutetian|44.2|.7|isotopic, K/Ar||Thanetian|58.6|.7|isotopic, K/Ar|||||No|||||||Used in GSNSW seamless geology dataset 2021, and GA alkaline rocks dataset.|Alkaline to transitional basalt flows and dykes.|basic volcanic rock|||N||17-JAN-23
Walgett Formation|19229|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Pleistocene||||deposition|Pleistocene||||||10||No|35187||||||Age: <1.0Ma. In the Walgett area.|||||N||17-JAN-23
Walhalla Group|19233|Walhalla Series|19235|||Yes|Group, Suite|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Upper Devonian||||deposition|Lochkovian|||||||VIC|No|43461|33601|||||Deformed in ?Late Devonian [Ar/Ar deformation age (cleavage in slate) 372+/-2 Ma? But older ages obtained for cover successions eg Marysville Igneous Complex 373+/-4 Ma (Richards and Singleton, 1981).|Undifferentiated marine turbiditic sandstone, siltstone, mudstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Walibree Formation|23120|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Tournaisian||||deposition|Famennian||||||1700||No|22736|22736|Roberts J.|06-SEP-93|||See also misspelling Wallibree Formation.|Dacite interbedded with tuff, volcanogenic sandstone and siltstone and overlaid with siltstone|acid volcanic rock|medium-coarse grained siliciclastic rock|forearc|N||17-JAN-23
Walker Volcanics|19240|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Douro Group|5668|Hawkins Suite|8179|Wenlock|||inferred, geological correlation|eruption|Wenlock|430.1|2.2|inferred, geological correlation|magmatic crystallisation||1500|ACT|No|36441|42820|||||Canberra & Michelago 1:100k sheet areas. Equivalent to, but not yet formally included in, the Douro Group [2012].|Green to purple dacite ignimbrite and bedded tuff, minor andesite, volcaniclastic sediment and limestone; calcareous and tuffaceous shale and siltstone|acid volcanic rock|||N||17-JAN-23
Walkers Hill Granite|19242|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34449||||||||acid intrusive rock|||Y||17-JAN-23
Wallabadah Rhyolite Plug|83200|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount Royal Volcanics|83198|||Lutetian|45.5|.5|isotopic, K/Ar|eruption|Selandian||||||||No|||||||Used in GSNSW seamless geology dataset 2021. A single K-Ar age of 45.5 +/- 0.5 is recorded.|Massive rhyolite plug approx. 1000 m high.|acid volcanic rock|||Y||17-JAN-23
Wallaby beds|19254|Wallaby Beds|19252|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Artinskian|||inferred, biostratigraphic correlation||Artinskian|||inferred|||150||No|43475|||||||Ferruginous siltstone, conglomerate, lithic labile arenite.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Wallace Shale|19257|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mumbil Group|13411|||Pridoli||||deposition|Pridoli||||||450||No|43385||||||Previously part of the Gamboola Formation.|Red and green shale, rare arenite; allochthonous megaclasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Wallagaraugh Monzogranite|76991|Wallagaraugh Adamellite|23123|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Wallagaraugh Suite|25586|Lower Devonian||||intrusion|Late Silurian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Monzogranite, granite|acid intrusive rock|||Y|I-type|29-SEP-23
Wallagaraugh Suite|25586|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Kameruka Supersuite|9187|Lower Devonian||||intrusion|Late Silurian||||||||No|42827|||||||Granite, Granodiorite|acid intrusive rock|||Y||22-AUG-23
Wallah Granite|19259|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Burrawinda Suite|69893|Ludlow||||intrusion|Ludlow||||||||No|42726||Chappell et al. 1991, Pogson D.|11-NOV-99|||Not related to former reservation of Wallah for the Gunnedah Basin. Formal name not intended in Chappell et al (1991). Wrongly shown as part of Whipstick Suite. Name formalized on CROOKWELL 1:100 000 sheet (2000).  Part of the Wyangala Batholith. Previously of Wheeo Suite. Stated to be of the Burrawinda Suite on GOULBURN 1:250K map sheet (2013).|Medium to coarse grained, massive to mildly foliated, equigranular, cordierite-muscovite-biotite granite and granodiorite with metasedimentary xenoliths; high K and Th response.|acid intrusive rock|||Y||17-JAN-23
Wallah Granite, Narrawa Granite|42009|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Massive to foliated porphyritic cordierite-biotite granite, granodiorite; leucocratic porphyritic biotite granite with miarolitic cavities|acid intrusive rock|||Y||17-JAN-23
Wallala Formation|30035|Wallala|23125|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Nea Subgroup|30034|||Lopingian||||deposition|Lopingian|255.04|.09|isotopic, U/Pb-Pb/Pb, TIMS|||55.5||No|43194|||||||Fining-upwards sequence of lithic conglomerate, sandstone, siltstone, claystone, coal; minor tuff and tuffaceous sediments.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Wallanbah Formation|25682|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Tournaisian||||deposition|Tournaisian||||||1800|NSW|No|36057|36057|D.T.Crane, J.W.Hunt|10-FEB-76||||Interbedded mudstone and structureless lithic sandstone, thick massive lithic sandstone and an upper part of both lithic sandstone and mudstone with three calcarenites (Mograni, Tugrabakh, and Mayers Flat Limestone Members) and a crinoidal conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wallanburra Breccia|82694|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Clay-carbonate altered basaltic breccia. Fragments include olivine and clinopyroxene phenocrysts in a flow-banded, vesicular glassy groundmass, Cr-rich spinel xenocrysts of mantle origin, and crustal xenoliths including country metasedimentary rock.|basic volcanic rock|||N||17-JAN-23
Wallandoon Ignimbrite|80311|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Culcairn Group|80310|||Lower Devonian|||||Lower Devonian|412.6|2.5||||||No|73457||Bull, K., Gilmore, P. (GSNSW)|17-NOV-17|||East Riverina Project. Subaerial. Includes ignimbrite. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar). Also published in GSNSW seamless geology. Lith desc from 2023 version.|Amphibole-bearing, crystal-rich, pumice-rich and pumice-poor breccia with and without clear welding textures.|acid volcanic rock|||N|I-type|26-SEP-23
Wallangarra Volcanics|19265|||||Yes|Formation, beds|Formal|Other new published name|Described|Wandsworth Volcanic Group|29113|||Changhsingian|253.1|1.5|inferred, intrusive relationship|eruption|Changhsingian|253|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||450||No|31694||||||See also misspelling Wallangara.|Dark grey, lithics poor, crystal rich, moderately to intensely welded, rhyolitic to dacitic ignimbrite; with crystals of orthoclase, plagioclase, quartz, Fe-Ti oxides and minor biotite.|acid volcanic rock||continental margin arc|N||28-AUG-23
Wallangulla Sandstone Member|19267|Wallangulla Sandstone|19268|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Griman Creek Formation|7826|||Albian||||deposition|Albian|||||4|19||No|36356||||||Source of diverse fossils, significant for dinosaurs and opalised plants and animals|Fine- to medium-grained, pale, kaolinitic sandstone; locally cross-bedded and iron-stained; includes Finch clay facies.|siliciclastic sedimentary rock|||N||17-JAN-23
Wallarah Coal|19269|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Moon Island Beach Subgroup|12215|||Changhsingian|252.78|.07||deposition|Changhsingian|252.7|.05||||||No|34270||||||Within the Newcastle Coal Measures. This Formation was downgraded to the informal Wallarah coal seam instead. Name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Hard, dull (massive) coal, with only rare contained bands; includes two distinctive bands of grey-brown 'waxy' tuffaceous claystone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||14-AUG-23
Wallaringa Formation|19273|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Visean||||||500||No|43440|44254||||||Pink to brown, thickly bedded lithic sandstone, conglomerate and granitoids, minor sandstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wallarobba Conglomerate Member|19274|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Wallaringa Formation|19273|||Visean||||deposition|Visean||||||130||No|43440||||||Lithology description from GSNSW seamless geology 2023.|Thick-bedded cobble conglomerate with clasts of devitrified volcanic rocks, sedimentary rocks, and granitoids set in a pink zeolitic sandstone matrix.|siliciclastic sedimentary rock|||N||28-SEP-23
Wallaya Dolerite|26979|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Upper Triassic||||intrusion|Upper Triassic||||||||No|45003||||||Lithology updated from GSNSW seamless geology dataset 2021.|Alkaline olivine dolerite and basanite.|basic intrusive rock|||Y||19-JUL-23
Wallerawang Granite|19280|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Hartley Suite|31451|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Wallerawang Subgroup|19281|Wallerawang Sub-Group|29106|||Yes|Subgroup|Formal|Resvd name published|Defined|Illawarra Coal Measures|27802|||Changhsingian|||||Wuchiapingian||||||58.5|NSW|Yes|39232|40806|Bembrick, C.S., Robertson Research (Australia) Pty Ltd||Russell, T.|13-JUL-83||||||N||17-JAN-23
Walleroobie Ignimbrite|80570|Walleroobie Volcanics|27603|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|Gurragong Group|80567|||Lochkovian|418.7|1.8|isotopic, U/Pb-Pb/Pb ion probe||Pridoli|418.7|1.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|||Bull, K., Gilmore, P. (GSNSW)|30-JUL-18|||East Riverina Project. Subaerial crystal-rich ignimbrite. Includes informal 'biotite ignimbrite' from Cargelligo that has now been extended to the south. To be described and formally defined by Kate Bull in a paper on 'Early Devonian felsic volcanism in the Central Lachlan Orogen' (or similar).|Subaerial crystal-rich ignimbrite|acid volcanic rock|||N||17-JAN-23
Walleroobie Volcanics|27603|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lochkovian|418.7|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|418.7|1.8|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|29993||||||This unit to be incorporated into an expanded Gurragong Group, as Walleroobie Ignimbrite [advised by Phil Gilmore, GSNSW, JUL-2018].|Dacite ignimbrites, rhyolite, garnet dacite, quartz-feldspar and quartz-feldspar-garnet porphyries, rhyolite lavas.|acid volcanic rock||oceanic backarc|N||17-JAN-23
Walli Volcanics|19286|Walli Basalt|19284|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cabonne Group|21409|||Upper Ordovician||||eruption|Middle Ordovician|460|||||1100||No|43357||||||Was listed as superseded by Walli Basalt. Used in Bathurst 1:250 000 sheet area. (Hopefully to replace Walli Basalt?). Molong-Wellington Volcanic Belt. Formerly part of Kenilworth Group which has been discontinued (Pogson et al., 2012) in favour of Cabonne Group. Is contiguous with the Kenyu Formation which is considered to be of similar age.|Plagioclase basalt, volcaniclastic sandstone, siltstone, matrix-supported conglomerate.|basic volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Wallis Creek Formation|19292|||||Yes|Formation, beds|Formal|Other new published name|Described|Tomago Coal Measures|18289|||Late Permian||||deposition|Late Permian||||||||No|43447||||||Max. thickness: >300 m. Combination of Buttai and Rathluba Beds of David (1907) [Geology of NSW 1969, p336] See also Wallis Creek Subgroup.|Sandstone, siltstone, claystone and thin coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Wallis Creek Subgroup|19293|Wallis Creek Formation|19292|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Tomago Coal Measures|18289|||Late Permian|||||Late Permian||||||||No|42214||||||Although shown in a diagram from a 2003 paper as part of the Newcastle Coal Measures, this is likely to be an error in the diagram omitting the Tomago Coal Measures. Shown as part of Tomago Coal Measures in 2015 (RefID 70647).|||||N||17-JAN-23
Walloon Coal Measures|19303|Walloon Beds""|19300|||Yes|Subgroup|Formal|Variation of published name|Defined|Injune Creek Group|8710|||Oxfordian|158||isotopic, U/Pb-Pb/Pb, TIMS|deposition|Oxfordian|||||420|700|QLD|No|44432|38205|||||Of Reid (1921) after Cameron (1907). Type Section from Cameron (1970). See also Lexicon. See also Birkhead Formation. Formerly included Towallum Basalt at the base. Some workers use Walloon Subgroup in Surat Basin, but GSQ currently prefers Walloon Coal Measures in both Clarence-Moreton and Surat Basins [McKellar 30-AUG-2012]. Geology of Queensland volume (p536, 2013) states: "In the regional context, subgroup status for the Walloon Coal Measures is unwarranted.". See also Walloon Subgroup.|Thin-bedded, claystone, shale, siltstone, lithic and sublithic to feldspathic arenites, coal seams and partings; minor limestone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Walloy Rhyolite Member|33399|Walloy Member|31841|||Yes|Member, phase|Formal|Variation of reserved name|Described|Warrumba Volcanics|32474|||Devonian||||eruption|Devonian||||||||No|24417||Raymond, O.L.|15-OCT-97|||Grenfell 1:100 000 sheet area. Lithology description from GSNSW seamless geology 2023.|K-feldspar-quartz phyric rhyolite lavas, minor volcaniclastic rocks.|acid volcanic rock|||N||28-SEP-23
Wallumbilla Formation|19323|Blackdown Formation|1853|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wilgunya Subgroup|20031|||Albian||||deposition|Barremian||||||350|QLD|No|33642|63979|||||First described by Isbell (1957). Redefined 1967, 2002. Age - Aptian to Albian : ~113-~98Ma. Unit is laterally equivalent to the Bulldog Shale. In SA of the Maree Subgroup (Neales River Group).  In Qld of Wilgunya Subgroup (Rolling Downs Group). Age: 111-117 Ma. Fission Track age: 87-109 Ma. (RefID 65119, 2009)|Marine grey mudstone and siltstone with minor interbeds of fine-grained glauconitic and calcareous sandstone, local thin micritic limestone beds and heavy mineral strandline accumulations; down-sequence glacial ice-rafted erratics.|fine grained siliciclastic rock|carbonate sedimentary rock|intracratonic|N||25-MAY-23
Wallumbilla Formation, lower|35075|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Wallumbilla Formation|19323|||Lower Cretaceous|||inferred||Barremian|||inferred|||||No|23053||||||Possibly northern equivalent to Drildool beds, Walgett & Narrabri 1:250 000 sheet areas. Yongala 1 well in Queesland also use this informal subunit. Continuing use of this informal subunit is strongly discouraged.|||||N||17-JAN-23
Wallumburrawang Formation|81947|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Orange to white weathering, porphyritic to equigranular, trachyandesite to trachyte coherent and volcaniclastic rocks, lava flow deposits, lava domes and intrusions.|intermediate volcanic rock|||N||17-JAN-23
Wallundry Suite|29582|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Llandovery|||||Ashgill||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. 431 +/- 4 Ma||acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Walters Range Group|24072|Walters Range group|29109|||Yes|Group, Suite|Formal|Other new published name|Defined|Cobar Supergroup|27673|||Pragian||||deposition|Lochkovian|||inferred, biostratigraphic correlation|||1500|NSW|No|37772|41394|E.Scheibner|23-JUL-80|||Comprises qtz sst, siltst, pebbly feldspathic sst + qtz-rich granule-pebble conglom.  Age: Pragian - 411.2-407Ma (from 2005 reference using Gradstein et al., 2004 timescale).|Thinly bedded, parallel-laminated, well-sorted medium-grained quartz sandstone and siltstone, overlain by crossbedded quartz sandstone and intercalated siltstone, locally with medium to coarse-grained feldspathic-lithic sandstone and conglomerate|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||12-OCT-23
Walwa Granite|19340|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Silurian||||intrusion|Silurian||||||||No|33779||||||Name stated to be obsolete (Vandenberg et al (2000). This granite, along with Forest Creek and Mount Alfred Granite included in Corryong Granite on GSV's 1997 Tallangatta 1:250k, and 2001 Shelley and Jingellic 1:50 k sheet, but appears to have been subsequently recognised again (used on GA 1:1million surface geology datasets).|Granite|acid intrusive rock|||Y||17-JAN-23
Wambangalong Creek complex|82837|Toongi trachyte|74636|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Jurassic|||||Upper Triassic||||||||No|||Champion, D.C., Beyer, E. (GA)|24-SEP-21|||For use in Alkaline Rocks data compilation. Dubbo alkaline province. Alkaline magmatism largely in the region just south of Dubbo, around the south-western margin of the present day extent of the Gunnedah Basin. Magmatism has been described by Warren et al. (1979) who recognised a number of informal units. The magmatism includes the host phases for the Toongi rare earth-zirconium-niobium-hafnium-tantalum-yttrium deposit. Probably includes Toongi trachyte. Includes parts of the more general' felsic to intermediate volcanics and high level intrusives 42180', and  'mafic intrusives 42182'. Equivalent to Mts, Mtk, Mtx, Mtt and Mtu units of Warren et al. (1999), Mesozoic igneous rocks. IN Dubbo Explan Notes pp 313-328.|Intrusive and extrusive alkaline to peralkaline syenitic, trachytic, quartz trachytic and uncommon rhyolitic and mafic intrusive units|intermediate igneous rock|||Y||17-JAN-23
Wambangalong Formation|25590|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||975|NSW|No|43476|40328||||||Quartzose sandstone, siltstone, shale, phyllite.|siliciclastic sedimentary rock|||N||17-JAN-23
Wambidgee Serpentinite|26198|Fontenoy Serpentinite|21806|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Jindalee Group|27440|||Lower Ordovician|||||Cambrian|||||||NSW|Yes|35206|22638|Clift D.S.L.|28-AUG-73|||Previously "Fontenoy Serpentinite"|Serpentinite, talc-carbonate rocks|metamorphosed ultramafic rock|||N||17-JAN-23
Wambo Coal Member|19343|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Malabar Formation|11055|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Wambrook Dolerite|36404|Bondo Dolerite|29424|||Yes|Member, phase|Formal|Resvd name published|Defined|Monaro Volcanics|12067|||Lutetian||||intrusion|Lutetian||||||||No|50126|50126|Sharp K. ph 02 6452 2914|19-SEP-01|||Distinct flow of different age from Bondo Dolerite.  Age: K/Ar dated to >/-40.6+/-0.4Ma.|Dolerite flow distinguished from surrounding basalt flows by grainsize and the presence of large phenocrysts of titanaugite.|basic volcanic rock|||Y||17-JAN-23
Wammerra Formation|19350|Wammera Formation|19349|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Cryogenian|700|||||750||No|30261|||||||Lenticular flaggy limestone. Buff, flaggy, silty to sandy limestone grading into laminated siltstone-dominated sequences with minor limestone; thin, calcareous sandy interbeds common.|carbonate sedimentary rock|||N||17-JAN-23
Wana Karnu Group|70131|Snake Cave Sandstone|17020|||Yes|Group, Suite|Formal|Resvd name published|Redefined|||||Middle Devonian|||inferred, biostratigraphic correlation|deposition|Lower Devonian|||inferred, biostratigraphic correlation|deposition||||No|64679|66623|Sharp, T.|10-MAR-06|||Used in the Koonenberry Region. Published Mines & Wines 2007 Extended Abstracts. AIG Bulletin 46. Replaces Snake Cave Sandstone.(CEBMay2008)|Thick-bedded, laminated and cross-bedded medium-grained fluvial quartzose sandstones and quartzites; some beds with scattered rounded vein quartz and quartzose pebbles and mud clasts.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wandandian Granite|19364|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Oberon Supersuite|31533|Carboniferous||||intrusion|Carboniferous||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Wandeen Formation|23130|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||deposition|Llandovery||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes. Previously mapped as Jindalee "beds"|Polymictic conglomerate, breccia, lithic sandstone, siltstone, mudstone, basalt, basaltic andesite|medium-coarse grained siliciclastic rock|basic volcanic rock|oceanic backarc|N||17-JAN-23
Wandella Sandstone Member|19366|||||Yes|Member, phase|Formal|Variation of published name|Defined|Loxton-Parilla Sands|33864|||Piacenzian||||deposition|Zanclean|||||||VIC|No|39329|42966|||||of Loxton-Parilla Sands. Only differentiated in VIC.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Wandera Leucosyenogranite|82695|Wandera leucosyenogranite|80192|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Artinskian|||inferred||Artinskian|288.7|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Medium- to coarse-grained leucosyenogranite. S-type (tentative).|acid intrusive rock|||Y|S-type|17-JAN-23
Wandera leucosyenogranite|80192|||||Yes|Formation, beds|Informal|Other new published name|Described|||Bundarra Supersuite|67901|Artinskian||||magmatic crystallisation|Sakmarian|288.7|1.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|70217|||||||Coarse-grained, felsic, leucosyenogranite composed of 50 percent alkali feldspar, 40 percent quartz, 10 percent plagioclase and minor biotite.|acid intrusive rock|||Y|S-type|16-AUG-23
Wandrawandian Formation|19383|Wandrawandian Siltstone|19385|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Shoalhaven Group|16844|||Wuchiapingian||||deposition|Sakmarian||||||||No|43377||||||Formation and Siltstone ending both used widely over the years. Foramtion reinstated in 2016.Updated from GSNSW seamless geology dataset 2021.|Mid-grey to blue-grey fine-grained quartz-lithic silty sandstone, mudstone, siltstone (fine specks mica present); matrix-supported polymictic pebbles within sequence. Commonly bioturbated, fossils include: brachiopods, corals and crinoid stems|siliciclastic sedimentary rock|||N||03-SEP-23
Wandsworth Volcanic Group|29113|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Lopingian||||magmatic crystallisation|Lopingian|256.3|1.5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NSW|No|60079|42378|||||Includes seven informally named, geographically separate  masses of the Dundee Rhyodacite: Bolivia, Brassington, Dundee, Sunnyside, Tarban, Tenterfield, and Timbarra masses. Intruded by Early Triassic granites. Within Wandsworth Province. See also 'Kurrajong Park Volcanics', Uralla volcanics', 'Attunga Creek volcanics'.|Undifferentiated felsic volcanics, minor sediments and granites. Dominantly ignimbritic rhyolites and rhyodacites (dark crystal-lithic tuffs); rhyodacitic lavas, minor dacite, andesite, trachyte; interbedded fine-grained sediments|intermediate volcanic rock|fine grained siliciclastic rock|continental margin arc|N||28-AUG-23
Wang Wauk Formation|70002|Wang Wauk beds|41595|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Tournaisian||||deposition|Upper Devonian||||||||No|61766|||||||Grey lithic feldspathic sandstone, siltstone and mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Wanganderry Sandstone Member|77584|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Wilton Formation|20184|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Medium- to very coarse-grained quartzose sandstone, minor bands of carbonaceous siltstone and claystone, sporadic pebble conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Wanganella Granodiorite|82697|Wanganella granodiorite|76044|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Jawbone Creek Granodiorite Suite|76043|Silurian|407||isotopic, K/Ar||Silurian|421|3|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion||||No|||||||Of Jawbone Creek granodiorite suite. Hay and Deniliquin 1:250 k sheet areas. Unit mostly based on geophysics, but intersected by drillhole Bundy No.1. K/Ar date from 1966. Biotite granodiorite, interpreted as an I-type granite. Appears to intrude Booroorban granite in TMI imagery, but radiometric dating suggests Booroorban granite is younger (398+/-4 Ma from Hay No.1). Used in GSNSW seamless geology dataset 2021.|Biotite granodiorite, interpreted as an I-type granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Wanganui Andesite Member|37906|Wanganui Dacite|30062|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Clifden Formation|4147|||Carboniferous||||eruption|Carboniferous|319.2|2.8|||||NSW|Yes|24605|24605|Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|See also Wanganui Andesite.|Andesite flow.|intermediate volcanic rock||forearc|N||17-JAN-23
Wangellic Granite|19401|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Bombala Suite|31536|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Wangrah Monzogranite|77037|Wangrah Granite|19412|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Wangrah Suite|31494|Middle Devonian||||intrusion|Middle Devonian||||||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated to meet IUGS standards. See previous name for definition.  A-type or I-type granite? Published in GSNSW seamless geology. Shown as I-type in 2023, but suite is shown as A-type.|Pink-grey to white Fe-rich biotite +/- hornblende monzogranite, variable porphyritic texture and local rapakivi texture|acid intrusive rock|||Y||26-SEP-23
Wangrah Suite|31494|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||Cobargo Supersuite|4250||||||||||||||No|42726|||||||||||Y||17-JAN-23
Wankeroo Formation|27925|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||||||deposition|||||||||No|34812|||||||||||N||17-JAN-23
Wansey Formation|29571|Wansey Tuff|19422|||Yes|Formation, beds|Formal|Variation of published name|Defined|Goonigal Group|24297|||Pridoli||||deposition|Pridoli||||||1000||No|43494|23170|||||Replaces Wansey Tuff, Bathurst 1:250 000 sheet area.|Andesitic lithic tuffs and richly fossiliferous arenite, shale and conglomerate, breccia.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wantabadgery Granite|19423|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Tom Groggin Suite|18286|Late Silurian|415|13||intrusion|Late Silurian|432.2|4.3|isotopic, U/Pb-Pb/Pb ion probe|||||No|60086||||||See also "Ardlethan Granite", "Wantabadgery Granodiorite". 415 +/- 13 Ma, Junee Reefs Granite. Previously partly Ardlethan Granite. See also RefID 67060 p503, 505, where said to be part of Koetong Suite.|Grey, equigranular, porphyritic, quartz-feldspar-biotite-muscovite granite; tourmaline-bearing, locally pegmatitic, xenolith-rich.|acid intrusive rock|||Y|S-type|22-AUG-23
Wapentake Formation|19428|Wapentake Beds|19427|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Llandovery||||deposition|Llandovery|||inferred, biostratigraphic correlation|||1750||No|43871|64612|||||Previously of Dargile Group.  Also known as 'Springfield Sandstone'. Superseded by Wapentake Sandstone in 1997, but Formation reinstated ~1998.|Distal continental shelf deposit: Coarsening upward sequence of turbiditic sandstone and siltstone; thinly to thickly bedded, minor large channels, ripple drift and swaley cross-laminations, minor burrows (60592).|siliciclastic sedimentary rock|||N||17-JAN-23
Waratah Sandstone|19437|||||Yes|Formation, beds|Formal|Variation of published name|Described|Newcastle Coal Measures|27861|||Lopingian||||deposition|Lopingian||||||20||No|43477||||||In the Newcastle Coalfield. Modified in 1999. Then considered to conformably underlie Newcastle Coal Measures. The change is because the top of the unit is much easier to recognise than its gradational base. Equivalent to Watts Sandstone in the Hunter Valley Coalfield. Shown as being included in Newcastle Coal Measures in 2015 (RefID 70647). Updated from GSNSW seamless geology dataset 2021.|A medium-grained sandstone, mostly massive, well sorted and fine-grained in mid-section.|siliciclastic sedimentary rock|||N||14-AUG-23
Warbisco Shale|19441|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bendoc Group|1474|||Hirnantian|||inferred, biostratigraphic correlation|deposition|Sandbian|||inferred, biostratigraphic correlation|deposition||500|NSW|No|40136|42647|VandenBerg, A.H.M.|23-MAR-80|||MURRINDAL area. Geological Survey of Victoria map code: Obw. In the Girilambone-Wagga Terrane. Represented by Currawalla Shale in NSW. In Percival et al, 2011, QN137, p16, Foxlow beds have been replaced by Warbisco Shale (RefID 67322). Age based on graptolites.|Black, laminated to medium-bedded pyritic carbonaceous shale, commonly strongly foliated and folded; minor quartzose sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Warbro Formation|26202|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Macleay Group|10958|||Kungurian||||deposition|Artinskian||||||1070|NSW|No|43385|34293||||||Grey micaceous siltstone, sandstone, rare mudstone, thin conglomeratic, crinoidal limestone.|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Warderie Volcanic Member|30528|Warderie Volcanics|19453|||Yes|Member, phase|Formal|Variation of published name|Defined|Dripstone Formation|30526|||Wenlock||||eruption|Wenlock||||||400||No|22857|23170|Scott M.|25-SEP-96|||Wellington &/or Euchareena 1:100 000 sheet area.|Purple andesite and trachyte, volcaniclastic sandstone and breccia, siltstone.||||N||24-JUL-23
Wards Creek beds|34073|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Manning Group|11186|||Cisuralian||||deposition|Cisuralian||||||||No|22612||||||    |Breccia dominant facies|siliciclastic sedimentary rock|||N||17-JAN-23
Wards Mistake Monzogranite|38284|Wards Mistake Adamellite|19455|||Yes|Formation, beds|Formal|Variation of published name|Described|||Wards Mistake Suite|67903|Lower Triassic|253.3|1.4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Permian|253.3|1.4||||||No|23811||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Within the Uralla Supersuite. Shown as Early Triassic in GSNSW Seamless 2023, in spite of Permo-Triassic geochron.|Coarse to medium-grained, hornblende-biotite monzogranite - granodiorite. Contains abundant mafic clots and sedimentary xenoliths. Comprises quartz, orthoclase, andesine, biotite, hornblende; accessory apatite, magnetite and sphene|acid intrusive rock|||Y|I-type|22-AUG-23
Wards Mistake Suite|67903|Wards Mistake group|40256|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Uralla Supersuite|67894||||||||||||||No|69639||Champion, Blevin and Bultitude|07-FEB-05|||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Ref: Champion, Blevin and Bultitude, pers. comm., Nov. 2007.|Intermediate granites.||||Y||20-AUG-23
Wards River Conglomerate|19456|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Craven Subgroup|24888|||Late Permian||||deposition|Late Permian||||||20||No|34556||||||Within the Gloucester Coal Measures.|Boulder to pebble, clast supported, imbricated and crossbedded polymictic conglomerate, clasts of acid and silicic volcanics and lithic sandstone, interbedded with very coarse to medium grained lithic sandstone and med-fine grained lithic sandstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wargin Granite|29580|Ungarie Granite|18839|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Ungarie Suite|31652|Early Silurian||||intrusion|Early Silurian||||||||No|22638||Warren A.Y.E., Gilligan L.B., Raphael N.M.|14-AUG-95|||Cootamundra 1:250 000 sheet area. Age probably Late Silurian. Previously mapped as part of Ungarie Granite?|Gneissic biotite granite, microgranite|acid intrusive rock|||Y||17-JAN-23
Warialda Sandstone|26985|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Jurassic||||deposition|Jurassic||||||||No|34134||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Warina Sand|19462|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Renmark Group|16036|||Early Eocene|52|||deposition|Thanetian|65|||||200|SA|No|31745|42966|||||Also referred to as Warina Formation, perhaps incorrectly?|Pale grey to pale brown medium- to coarse-grained quartz sand with minor thin, lenticular interbeds of locally carbonaceous silt and clay.|regolith|||N||17-JAN-23
Warkworth Coal Member|77262|Warkworth Coal Seam|19465|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Mount Thorley Formation|23836|||Late Permian||||deposition|Late Permian||||||||No|68004||||||Apparently a variation on the informal Warkworth Coal Seam (unit no. 19465).||organic rich sedimentary rock|||N||17-JAN-23
Warlands Creek Volcanic Member|70510|Warlands Creek Tuff Member|30931|||Yes|Member, phase|Formal|Variation of published name|Defined|Woodton Formation|31412|||Permian||||eruption|Permian||||||25||No|62095|62095||||||Beige to grey welded ignimbrite, partly flow-foliated.|igneous volcanic rock||extensional continental backarc|N||17-JAN-23
Warners Bay Tuff|35095|Warners Bay Formation|19477|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Newcastle Coal Measures|27861|||Lopingian|||inferred|eruption|Lopingian|||inferred||.5|15|NSW|No|23055||||||Renamed from Warners Bay Formation. Named after a Newcastle suburb. Thickness: 0.5-15m; 8.77m in type section in BHP Floraville Bore.|Tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, chert.|igneous volcanic rock|siliciclastic sedimentary rock||N||30-AUG-23
Waroo beds|83869|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cisuralian|||||Cisuralian||||||||No|67908||||||Texas Orocline, New England Orogen. New name. Early Permian. Shallow-dipping.|Thick arenite layers interlayered with thin siltstone bands.|siliciclastic sedimentary rock|||N||08-AUG-23
Warraberry Member|29512|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Dulladerry Volcanics|29509|||Givetian||||deposition|Devonian|||||||NSW|No|43640||Wyborn D. for Lachlan NGMA project|21-JUL-95|||Bathurst 1:250 000 sheet area. Parkes 1:100k sheet area.|Rhyolite lava, polymict breccia basalt, volcaniclastic sandstone/siltstone.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Warragamba Formation|75066|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|Shoalhaven Group|16844|||Permian||||deposition|Permian||||||||No|61609|||||||||||N||17-JAN-23
Warrah Conglomerate|30039|Warrah|23140|||Yes|Formation, beds|Formal|Resvd name published|Defined|Kandos Group|29513|||Lochkovian||||deposition|Lochkovian||||||280||No|43188|23170|||||Lithology description from GSNSW seamless geology 2023.|Pebble-granule conglomerate to pebbly lithic sandstone, mudstone and rare limestone lenses.|siliciclastic sedimentary rock|||N||28-SEP-23
Warrangong Volcanics|33418|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Black Range Group|1812|||Lochkovian||||eruption|Lochkovian||||||||No|44936||Raymond, O.L.|27-APR-99|||COOTAMUNDRA  and FORBES 1:250 000 sheet areas.  Previously included as part of "Illunie Rhyolite".|Fine- to medium-grained, massive, generally porphyritic, dacitic ignimbrite, flow banded ferroan enstatite-augite latite, minor olivine?-augite basalt.|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Warranoy Diorite|32374|Warrenoy Diorite|23146|||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|||||Silurian|||inferred|intrusion|Silurian|||inferred|||||No|||Blevin, P. (GSNSW)|14-JUN-12|||Used informally in Cootamundra 1:250 000 sheet area. Eastern Lachlan Orogen - Young Batholith. Used in GSNSW seamless geology dataset 2021.|Oligoclase-hornblende-quartz-apatite diorite|intermediate intrusive rock|||Y||17-JAN-23
Warratra Mudstone|19498|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Queens Pinch Group|30152|||Emsian||||deposition|Pragian||||||120||No|43476|23170|||||Defining ref (Dubbo Explan Notes, 1999) does not mention underlying unit. Taylors Hill Formation from previous ref. See also Warratra Formation.|Grey mudstone.|fine grained siliciclastic rock|||N||17-JAN-23
Warratta Group|73409|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Lower Ordovician|||inferred|deposition|Furongian|497.2|2.6|isotopic, U/Pb-Pb/Pb ion probe|||5000|NSW|No|66921|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Thomson Orogen? Age: 497 +/- 2.6 Ma, SHRIMP II, Greenfield 2010b (RefID 69002, 2010). Age derived from tuffaceous mudstones in Easter Monday Formation.(RefID 69001, 2008)|Phyllite, psammopelite, pelite, psammite. Variably deformed.|metasedimentary siliciclastic rock|||N||17-JAN-23
Warraweena Volcanics|78456|Warraweena volcanics|78379|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lochkovian||||eruption|Lochkovian|577|6||||||No|69042||||||Thomson Orogen. May be Neoproterozoic, if ~580 and ~600 Ma zircons not inherited. See Burton et al. 2008, [RefID 64681] under Warraweena volcanics for further information on this unit. GSNSW Seamless 2023 shows this unit as Devonian, as do 2018 references.|Basalt, calc-alkaline andesite; locally pillowed.|intermediate volcanic rock|basic volcanic rock||N||18-SEP-23
Warrawong Rhyolite Member|19501|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Majuba Volcanics|27473|||Pragian||||eruption|Pragian||||||||No|42566||||||Lithology description from GSNSW seamless geology 2023.|Coherent rhyolite volcanic rocks.|acid volcanic rock|||N||28-SEP-23
Warree Creek Formation|31775|Warree Creek Beds|27253|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Canangle Subgroup|3442|||Mississippian||||deposition|Famennian||||||185||No|43782||||||Defined Connolly (1963) as Waree Creek Shale. Later misspelt Warree Creek Shale & Beds by McLean (1974) - RefID 32151. Assumed to be misspelt on Bathurst 1:250 000 sheet as Warree Creek Formation. Recent check [7-FEB-2022] shows place name is now spelt Warree Creek, and  GSNSW seamless geology dataset 2021 uses this more widely used spelling, which is now accepted as the preferred spelling for this unit.|Massive red or green mudstone.||||N||20-JUL-23
Warri Granite|19525|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Warri Suite|31656|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended.  Wrongly shown as part of the Watch Box Suite on Chappell et al (1991).||acid intrusive rock|||Y||17-JAN-23
Warri Suite|31656|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|42726|||||||||||Y||17-JAN-23
Warrie Basalt|19527|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|40166||||||||basic volcanic rock|||N||17-JAN-23
Warrienbah Granite|82852|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Devonian|||inferred||Devonian|||inferred|||||No|||Batch, T. (UoN)|16-NOV-21|||Previously unnamed granite. On Tumut 1:100000 sheet it is the four units Dg in and around the Snowball Metabasic Igneous Complex. Named after the property (Warrienbah) used to access the granite. Tto be published: Manuscript submitted late 2021/first half of 2022 in AJES.
|Felsic, fine-medium grained to mafic coarse grained granite (appears as 2 phases, mafic and felsic).|igneous intrusive rock|||Y||17-JAN-23
Warriewood silt loam|25602|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35488|||||||||||N||17-JAN-23
Warrigundi Igneous Complex|19530|Warrigundi Intrusives|19531|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Artinskian||||eruption|Sakmarian||||||1500||No|42780||||||Geological Province: Werrie Basin. Max. Thickness: 1500m+.  Interbedded with Werrie Basalt|Pyroxene andesite, dacite, rhyolite flows and dykes, diorite.|intermediate volcanic rock|acid volcanic rock||Y||17-JAN-23
Warroo Limestone Member|25603|Warroo Limestone|27927|||Yes|Member, phase|Formal|Variation of published name|Defined|Taemas Limestone|17642|||Emsian||||deposition|Emsian||||||113||No|32483||||||Part of the Murrumbidgee Group.|Thinly-bedded fossiliferous limestone, massive limestone and impure silty limestone.|carbonate sedimentary rock|||N||17-JAN-23
Warroo Monzogranite Phase|82516|Warroo Monzogranite|74785|||Yes|Member, phase|Formal|Variation of published name|Briefly described|||Karonstadt Complex|82515|Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628|||||||Medium-grained, strongly porphyritic, granophyric, leucocratic, biotite-hornblende monzogranite. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Warrumba Volcanics|32474|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Rocky Ponds Group|32475|||Frasnian|382|2.8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Frasnian|382|2.8|isotopic, U/Pb-Pb/Pb ion probe|||||No|23392||Raymond, O.L.|10-JUN-98|||Grenfell 1:100 000 sheet area.  Previously included in "Illunie Rhyolite".|Quartz-K-feldspar phyric, A-type, rhyolitic ignimbrite containing limestone lithic clasts in part, K-feldspar-quartz phyric rhyolite lavas, basalt, andesite; minor trachyte, volcaniclastic sediments|acid volcanic rock|basic volcanic rock||N|A-type|17-JAN-23
Warrumbungle Volcanic Complex|77165|Warrumbungle Volcanics|29122|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Miocene|13|||eruption|Miocene|18|||||||No|68003||||||Variation on Warrumbungle Volcano Complex (unit no. 19543), itself superseded by Warrumbungle Volcanics (unit no. 29122), but seems to be preferred by GSNSW in 2020.|||||N||17-JAN-23
Warwaegae granite|80446|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Baconian Swamp granite suite|80443|Middle Devonian|||inferred||Middle Devonian|||inferred, geological correlation|||||No|70718||||||Informal name, derived from geophysics.  In Balranald 1:250k sheet area.|Inferred as S-type granitic rocks.|acid intrusive rock|||Y|S-type|17-JAN-23
Wasp Head Formation|19554|||||Yes|Formation, beds|Formal|Other new published name|Defined|Talaterang Group|28268|||Artinskian||||deposition|Sakmarian||||||90|NSW|No|32945|31081|||||Shallow marine.  Age: 290-286Ma (from 2004 reference). Previously of Shoalhaven Group. From ~2001, of Talaterang Group.|Type section dominated by fine- to medium-grained sandstone and breccia units - poorly sorted, internally chaotic and surrounded by a silt-rich matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Watch Box Granite|19559|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Watch Box Suite|31491|Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|32820|36413|Richardson S.J.||Hawke, J.|20-FEB-79|Wrongly shown as part of Wheeo Suite on Chappell et al (1991).|Microcline granite, massive, homogenous, medium-grained|acid intrusive rock|||Y||17-JAN-23
Watch Box Suite|31491|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Candelo Supersuite|3452|Lower Devonian|||||Lower Devonian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Waterbeach Formation|19575|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crudine Group|4970|||Lochkovian||||deposition|Lochkovian||||||1200|NSW|No|43517|43517||||||Thinly and rhythmically bedded, grey and green, fine grained sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Waterfall Gully Formation|19576|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Doyles Creek Subgroup|5688|||Lopingian||||deposition|Lopingian||||||||No|29942||||||Previously of Doyles Creek Group, now Boolaroo Group. Updated from GSNSW seamless geology dataset 2021.|Shale, carbonaceous shale, tuffaceous cherty claystone.|fine grained siliciclastic rock|||N||17-JAN-23
Watergums Monzogranite|76992|Watergums Adamellite|23153|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Gabo Suite|6947|Middle Devonian||||intrusion|Lower Devonian|395|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Published in GSNSW seamless geology.|Medium- to fine-grained, evenly-grained felsic monzogranite to granite|acid intrusive rock|||Y|A-type|26-SEP-23
Watermark Formation|19589|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Millie Group|30036|||Late Permian||||deposition|Late Permian|262.54|.16|isotopic, U/Pb-Pb/Pb, TIMS|||230||No|43409|43194|||||Parent added from Geol Surv NSW Mem Geol 12, (1993). Is a NSW unit and does not extend into Queensland [Advice from IWW JUL-2020].|Fining-up sequence of intensely bioturbated silty sandstone to siltstone/claystone laminite with marine fossils, overlain by finely laminated siltstone/claystone, then a coarsening-up sequence.|siliciclastic sedimentary rock|||N||03-SEP-23
Watonga Formation|24084|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Katian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation||||NSW|No|40134|40134|E.C.Leitch|19-NOV-79|||To be used in Port Macquarie district. Age range from conodonts in chert.|Broken formation: disrupted sequence of basalt, ribbon chert, siliceous mudstone, siltstone, sandstone and conglomerate.|metasedimentary siliciclastic rock|||N||17-JAN-23
Watta Formation|75069|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Late Permian||||deposition|Late Permian||||||||No|61612|||||||||||N||17-JAN-23
Watties Bore Formation|24085|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Kayrunnera Group|9352|||Tremadocian|||biozone|deposition|Late Cambrian|||biozone|||2000||No|41587||Webby B.D.|31-MAR-87|||Age from trilobites.|Massive to well-laminated shales and siltstones, khaki primary colour weathering yellow. Minor calcareous and dolomitic members. Highly cleaved on Nuntherungie. Trilobites near tip of exposed sequence indicate proximity to Cambro-Ordovician boundary|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Wattle Park Granite|26990|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|42726||||||Briefly described. Formal name not intended||acid intrusive rock|||Y||17-JAN-23
Watts Sandstone|27607|Watts Formation|19617|||Yes|Formation, beds|Formal|Variation of published name|Described|Singleton Supergroup|16939|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Base of Newcastle Coal Measures was raised to top of Watts Sandstone by the resolution to replace Wollombi Coal Measure nomenclature with Newcastle Coal Measure nomenclature as ratified by Coalfield Geology Council in 2004. Name retained in Hunter Valley|Medium- to coarse-grained sandstone.|siliciclastic sedimentary rock|||N||03-SEP-23
Wauchope Formation|34395|Wauchope Limestone|34385|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Permian||||deposition|Cisuralian||||||||No|22736||||||See also Wauchope Limestone, do not confuse with Wauchope Subgroup of NT.|Mudstone, sandstone, marl and bioclastic limestone.||||N||21-JUL-23
Waugoola Group|19623|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Early Wenlockian|||||Llandovery||||||176||No|35258|23214|||||Originally included in the Panuara Formation (subsequently Panuara Group).|Shale, limestone, siltstone, calcareous and feldspathic arenite, conglomerate; corals, brachiopods.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Waukeroo Formation|27608|||||Yes|Formation, beds|Formal|Other new published name|Described|Yancowinna Subgroup|20809|||Cryogenian||||deposition|Cryogenian||||||1500||No|30261|||||||Lenticular paraconglomerate and diamictite, interbedded with quartzite siltstone and arkosic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Waukivory Creek Formation|24087|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Avon Subgroup|802|||Late Permian||||deposition|Late Permian||||||326||No|40872|44244|M.Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Very coarse to medium-grained trough bedded lithic sandstone, laminated fine-grained lithic sandstone, laminated mudstone, numerous coals and minor claystone after airfall tuffs|medium-coarse grained siliciclastic rock|organic rich sedimentary rock|extensional continental backarc|N||17-JAN-23
Wave Hill Coal|19633|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Adamstown Subgroup|107|||Lopingian|||inferred, lithostratigraphic correlation|deposition|Lopingian|||inferred, lithostratigraphic correlation|||||No|39308||||||This Formation was downgraded to the informal Wave Hill coal seam instead. Not to be confused with Wave Hill nomenclature in NT. Wave Hill Coal reinstated. Updated from GSNSW seamless geology dataset 2021. Montrose Coal coalesces with the Wave Hill Coal unit in the west.|Coal and minor bands [of what?].|organic rich sedimentary rock|||N||17-JAN-23
Wave Hill Tonalite Phase|82424|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Dumbudgery Creek Complex|82419|Lower Triassic|249.7||isotopic, Rb/Sr||Late Permian|255|1|inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023.|Composite unit comprising medium-grained, hornblende(-biotite) tonalite to low-K granodiorite, and leucocratic biotite-(hornblende) tonalite to granodiorite.|acid intrusive rock|||Y||19-OCT-23
Wave Hill coal seam|78864|Wave Hill Coal|19633|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Adamstown Formation|105|||||||deposition|||||||||No|68711||||||Wave Hill Coal has been downgraded to the informal Wave Hill coal seam instead.||organic rich sedimentary rock|||N||17-JAN-23
Waverley Formation|25608|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Tournaisian||||deposition|Tournaisian|350.9|4|isotopic, U/Pb-Pb/Pb ion probe||622|1550|NSW|No|43417|45088|||||Parts are now mapped as Merlewood Formation.  Age: 350.9+/-4.0 Ma, from SHRIMP U-Pb zircons. Probably not related to Waverly Creek Formation [DEF].|Medium-coarse grained, pinkish brown to green crossbedded lithic sandstone, conglomerate and heavy mineral sandstone in the west; increasing amounts of thin, laminated mudstone and minor oolitic/biogenic limestone in east near Omadale Brook.|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Waverly Formation, Dangarfield  Formation|42283|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Tournaisian||||deposition|Tournaisian||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Lithic sandstone, conglomerate and heavy mineral sandstone, minor siltstone, mudstone and oolitic limestone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Waynes Knob Rhyolite|19642|||||Yes|Formation, beds|Formal|Other new published name|Defined|Black Range Group|1812|||Pragian||||eruption|Lochkovian||||||||No|32675|||||||Rhyolite lavas and dykes, plugs - fine-gr., flow banded, locally vesicular rhyolite - of anhedral phenocrysts of K-feldspar + magnetite, subordinate plagioclase, augite, bioitie+quartz, in groundmass of cryptocrystalline qtz/feldspar/chlorite|acid volcanic rock|||N||17-JAN-23
Weakleys Flat Claystone Member|23158|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Dempsey Formation|5365|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Of Singleton Supergroup. Used in GSNSW seamless geology dataset 2021.|Tuffaceous, light grey to white claystone, soft puggy and friable, fine-grained dark mica flakes throughout|fine grained siliciclastic rock|||N||17-JAN-23
Wean Formation|19648|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Nandewar Group|13762|||Permian||||deposition|Permian||||||||No|43429|||||||||||N||17-JAN-23
Weatley Park Sandstone Member|82700|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Gerringong Volcanics|7155|||Permian|252|4|isotopic, K/Ar||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Sandstone, minor siltstone and conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Webbs Consols Leucogranite|19657|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Triassic||||intrusion|Wuchiapingian|255.9|1.4|||||NSW|No|42748|42748|||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Formerly included in Webbs Consols Suite, Mount Duval Suite, Uralla Supersuite. Ungrouped in GSNSW seamless geology 2023.|Medium to coarse grained leucocratic and granophyric alkali feldspar granite with large quartz and K-feldspar megacrysts; a second phase consists of graphic and granophyric fine grained granite|acid intrusive rock|||Y|I-type|27-AUG-23
Weddin Sandstone|27609|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Nangar Subgroup|13778|||Upper Devonian||||deposition|Upper Devonian||||||457||No|43510|43507|||||Of Hervey Group.|White and red arenite; conglomerate, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wee Jasper Formation|78900|Wee Jasper Limestone|19664|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hatchery Creek Group|78899|||Middle Devonian||||deposition|Lower Devonian||||||||No|67823||||||Hunt and Young (2010).|Fining-upward cycles of red-purple-brown conglomerate, cross bedded sandstone and siltstone.|siliciclastic sedimentary rock|||N||11-SEP-23
Weedallion Granophyre|28136|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|35608|||||||Porphyritic graphic biotite granite|acid intrusive rock|||Y||17-JAN-23
Weemalla Diorite|19681|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||||||intrusion|||||||||No|43548||||||Property name is Weemulla.  This is misspelt on the topographic map.[advice from D.Wyborn 29Aug95] Proposed name Weemalla Formation is a different unit [J.Krynen 31Aug95]|||||Y||17-JAN-23
Weemalla Formation|29503|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Cabonne Group|21409|||Upper Ordovician|447|||deposition|Middle Ordovician|468|||||3500||No|22679|23214|Krynen, J. for Lachlan NGMA project.|31-AUG-95|||To be used on Bathurst 1:250 000 sheet, NGMA Project, if distinct unit Weemalla (misspelling of Weemulla) Diorite is dropped. Molong-Wellington Volcanic Belt.|Fine grained, laminated and variably calcareous feldspathic sandstone, siltstone and minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Weereewa Group|77796|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Quaternary|||||Pliocene||||||165||No|71069||Sherwin, L. (GSNSW)|08-FEB-13|||Reserved to cover the three formations currently recognised in  the Lake George basin [presumably Gearys Gap Formation, Ondyong Point Formation and Bungendore Formation].|||||N||20-AUG-23
Weethalle Granite|25610|Weethalle granite|19683|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Koetong Suite|9703|Ludlow|426.9|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|427.4|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|42726||||||Informal name to be formalized on Cargelligo 1:250 000 sheet. Biotite granite: S-type. Age: ~428.2Ma|Grey, coarse- to medium-grained porphyritic biotite granite with biotite-rich microgranular enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Weinteriga Creek Formation|76178|Weinteriga Creek beds|35627|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ponto Group|35621|||Middle Cambrian||||deposition|Middle Cambrian||||||||No|66623|66623|||||Formerly portion of Wonominta beds (Warris 1967), then Weinteriga Creek beds (Buckley 2000). Outcrops as generally subdued rounded hills and ridges. No fossils identified. Absence of tuffs and basalts implies Mount Wright Volcanic Arc was not active at the time.|Turbiditic sandy phyllites, fine- to medium-grained, strongly foliated and kink-banded, weathers to yellow-brown colour; quartz-magnetite rock. Quartz veins to more than 1 m wide are a prominent feature|metasedimentary siliciclastic rock|||N||17-JAN-23
Weismantel Coal Member|82701|Weismantel Seam|19693|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Weismantels Formation|24090|||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, but this is an invalid name for a sub-unit of the Weismantels Formation. It has also been given an identical description to the Weismantels Formation.|Thick, moderately high sulfur bituminous coal and laminated mudstone.|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Weismantels Formation|24090|Weismantels Coal|19694|||Yes|Formation, beds|Formal|Resvd name published|Defined|Dewrang Group|24917|||Lopingian|||inferred|deposition|Lopingian|||inferred|||50||No|40872|44244|J.Whitehouse|28-JUN-84|||Also used in GSNSW seamless geology dataset 2021.|Thick, moderately high sulphur bituminous coal and laminated mudstone.|organic rich sedimentary rock|fine grained siliciclastic rock|extensional continental backarc|N||17-JAN-23
Weja Dolomite|39133|Weja Formation|37333|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Cenozoic||||deposition|Cenozoic||||||||No|61964||Meakin, S.|19-SEP-03|||Originally reserved (Meakin 2002) as Weja Formation for use on the CARGELLIGO map sheet;  published as Weja Dolomite. Distributed in a zone within  "Featureless sandplain"|Dolomite-rich pedogenic carbonate over fluvially deposited dolomitic carbonate pebbles and cobbles, over massive carbonate.|carbonate sedimentary rock|||N||17-JAN-23
Welcome Volcanic Member|36831|Welcome Volcanics|35765|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian||||eruption|Permian||||||||No|23859|23859|||||Type Locality: 399000E, 6755000N|||||N||17-JAN-23
Welkeree Coal Member|77375|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||This name revived by GSNSW 14-JUN-2012. Used in GSNSW seamless geology dataset 2021.|Coal: Typically low-med ash, high volatile, seam thickness ranges, subject to splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Well Gully Ignimbrite Member|70511|Well Gully|41453|||Yes|Member, phase|Formal|Variation of published name|Defined|Seaham Formation|16708|||Pennsylvanian||||intrusion|Pennsylvanian||||||||No|62095|62095|||||Age: 305.7+/-2.7Ma.|Grey to beige unwelded ignimbrite.|acid volcanic rock||forearc|N||17-JAN-23
Wellingrove Monzogranite|82702|Wellingrove Granodiorite|28175|||Yes|Formation, beds|Formal|Variation of published name|Described|||Llangothlin Suite|74008|Lopingian|256.1|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Lopingian|256.1|1.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Irregularly textured, medium- to coarse-grained, porphyritic to equigranular, hornblende-biotite monzogranite, with minor syenogranite. Small round mafic enclaves are abundant. I-type (borderline A-type).|acid intrusive rock|||N|I-type|21-AUG-23
Wellington Caves Limestone|19707|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|34426||||||||carbonate sedimentary rock|||N||17-JAN-23
Welumba Monzogranite|77025|Welumba Adamellite|32243|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Free Damper Suite|31577|Lower Devonian|||inferred|intrusion|Pridoli|||inferred|||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. State list map symbol suggests this unit now (2012) regarded as Devonian. Used in GSNSW seamless geology dataset 2021.|Biotite monzogranite commonly containing hornblende|acid intrusive rock|||Y|I-type|17-JAN-23
Wendalpa Subgroup|19731|||||Yes|Subgroup|Formal|Unknown or process pending|Briefly described|Poolamacca Group|15430|||Neoproterozoic|||||Cryogenian||||||||No|36733|||||||Quartz sandstone with minor limestone overlain by amygdaloidal basalt.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Wenham Formation|24093|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Craven Subgroup|24888|||Late Permian||||deposition|Late Permian||||||23.9||No|40872|44244|M. Lennox|20-MAR-85|||For use in the Stroud-Gloucester Trough|Fine-grained sandstone; wavy and contorted bedding, plant debris laminations; palaeosols.|medium-coarse grained siliciclastic rock|||N||03-SEP-23
Wentworth Falls Claystone Member|19736|||||Yes|Member, phase|Formal|Other new published name|Fully described|Banks Wall Sandstone|1065|||Triassic||||deposition|Lower Triassic||||||||No|29749||||||See also Holland (1972) New findings on the Narrabeen Group in the Blue Mountains, Search 3(5), 176-180.|Thick claystone-siltstone red beds.|siliciclastic sedimentary rock|||N||28-AUG-23
Wentworth Group|19739|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Pragian||||deposition|Lochkovian||||||||No|43541|||||||Fluvial gravel and siltstone; marine shelly fauna. Intruded by dykes and sills before deformation.|siliciclastic sedimentary rock|||N||17-JAN-23
Werai granodiorite|80455|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Jawbone Creek granodiorite suite|80462|Late Silurian|||inferred, geological correlation||Late Silurian|||inferred, geological correlation|||||No|70718||||||Informal name, interpreted from geophysics. Deniliquin 1:250 000 sheet area. Also intrudes the Bendigo Zone of the Murray Basin. Magnetic signatures suggest whole suite is I-type.|granodiorite inferred.|acid intrusive rock|||Y|I-type|17-JAN-23
Werewilka Formation|79962|Werewilka formation|79752|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Ordovician|456||inferred, intrusive relationship||Cambrian|||inferred|||||No|71251||Purdy, D. (GSQ), Hegarty (GSNSW)|03-JUL-17|||GSNSW seamless geology 2023 description: Elongate domains of distinctly stripy magnetic appearance related to narrow parallel zones of alternating high and low magnetic character; interpreted as a metasedimentary sequence.|Metasedimentary rocks; Interbedded sandstone, siltstone and calc-silicates in GSQ Eulo 1. May appear as xenoliths within the Granite Springs Granite.|metasedimentary rock|||N||12-OCT-23
Wermatong Metabasalt|19745|Wermatong Amphibolite|19744|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Jindalee Group|27440|||Pridoli||||eruption|Ludlow||||||||No|37529||||||Tumut 1: 100 000 map sheet|Metabasalt, chert, chert-metabasalt breccia; very minor dolerite|metamorphosed basic igneous rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Werong Breccia Member|40935|||||Yes|Member, phase|Formal|Other new published name|Defined|Yanawe Formation|40932|||Ludlow|||inferred, overlying unit|eruption|Wenlock|||inferred, underlying unit||45|72|NSW|No|50230|68592|||||Previously included in the Willow Bridge Tuff of Cramsie et al (1975) and the Laidlaw Volcanics of Owen & Wyborn (1979). This member of the Yanawe Formation may be subdivided into the underlying Werong Breccia Member Cobble facies and the overlying Werong Breccia Member Pebble facies.|Varicoloured polymictic para-breccia. Angular clasts (boulders to pebbles) including ignimbrite, volcaniclastite, vitric tuff and sst. in green-grey, medium- to coarse-grained volcaniclastite + microcrystalline matrix|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Werrie Basalt|19751|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Artinskian||||eruption|Sakmarian|300|8|inferred, geochemical correlation|maximum depositional age||1500||No|34043||||||Name first used for Werrie Volcanic Series, by Benson, Dun and Browne (1920). Proc Linn Soc NSW 45 pp285, 337, 405 (from NSW volume of International Lexicon, 1959). Of the Warrigundi Igneous Complex? Geological Province; Werrie Basin. SHRIMP date from Mount Terrible Volcanic Complex, which is correlated with Werrie Basalt and Boggabri Volcanics in Teale et al., 1999.|Basaltic lavas (some alkaline), tuffs, autochthonous and cataclastic sediments, and local thin coals.|basic volcanic rock||extensional continental backarc|N||17-JAN-23
Werrigundi intrusives|19754|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Neogene|||||Cenozoic||||||||No|32671|||||||||||Y||17-JAN-23
Werrikimbe Volcanics|34400|Werrikimbe Volcanic Group|19755|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Triassic|223.9||isotopic, Rb/Sr|eruption|Upper Triassic|225.4||isotopic, Rb/Sr|||||No|22736||||||Variation of Werrikimbe Volcanic Group. See also Geology of New South Wales Appendix 1, p542 for description.|Rhyolitic and dacitic ignimbrites.|acid volcanic rock||continental margin arc|N||23-AUG-23
Werris Creek Coal Member|19763|Werris Creek Coal Measures|19762|||Yes|Member, phase|Informal|Variation of published name|Mentioned|Willow Tree Formation|29148|||Permian||||deposition|Permian|||||150|165||No|42182||||||Werrie Basin. Thickness 150-165 m, with the top 15 m consisting of conglomerate. To be used by GSNSW [July-2012]|Sandstone, shale and conglomerate, with at least 3 coal seams. Thickness 150-165 m, with the top 15 m consisting of conglomerate|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Wertago Volcanics|76155|Wertago Suite|73400|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|||||Lower Devonian|417.7|1.9|inferred, intrusive relationship|eruption|Silurian|425|7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|66623|66623|||||Andesite flows previously referred to Mount Daubeny Formation (Mills and Hicks 2000). Sills to 100 m thick and plugs to 500 m diameter. Widely-spread unit forming hilly terrain. Includes calc-alkaline lava flows and pyroclastics with high level sills and dykes. Hosts epithermal copper mineralisation.|Trachytic, dacitic and rhyolitic intrusions. Four main mappable units: a coarse-grained amphibole-bearing intrusion; quartz-feldspar porphyritic rhyolitic to rhyodacitic sills and dykes; dacite intrusions; dark amygdaloidal andesitic flows.|acid volcanic rock|intermediate volcanic rock||N||17-JAN-23
West 16-mile Tank dolomite|34741|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||deposition|||||||||No|22893||||||Within Loxton Sands|||||N||17-JAN-23
West Borehole Coal|19777|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|40516||||||Newcastle Coal Measures. This Formation was downgraded to the informal West Borehole coal seam instead. The west Borehole Coal/seam is said to be the combination of Nobbys, Dudley, Yard and Borehole Coal/seams.[?which are distinguished further east?]. Original name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021. Dudley Coal forms part of this unit to the east.|Coal with minor bands [of what?].|organic rich sedimentary rock|||N||17-JAN-23
West Borehole coal seam|35128|West Borehole Coal|19777|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Lambton Formation|10113|||Late Permian||||deposition|Late Permian||||||||No|23055||||||Newcastle Coal Measures. Informal unit. The west Borehole Coal/seam is said to be the combination of Nobbys, Dudley, Yard and Borehole Coal/seams.[???]||organic rich sedimentary rock|||N||17-JAN-23
West Lynne Rhyodacite Member|37905|West Lynne Rhyodacite|37296|||Yes|Member, phase|Formal|Variation of published name|Defined|Caroda Formation|3651|||Visean||||eruption|Visean|||||||NSW|Yes|24605|24605|Roberts, J.|22-JAN-03|Sutherland, F.L.|22-JAN-03|Not related to West Lynne Serpentinite, West Lynn Igneous Complex.|A red, unwelded ignimbrite with plagioclase, biotite and fragments of pumice and volcanic rocks. Abundant shards and bubble walls are present in a glassy groundmass.||||N||20-JUL-23
Westbourne Formation|19796|||||Yes|Formation, beds|Formal|Other new published name|Defined|Injune Creek Group|8710|||Tithonian|142|||deposition|Kimmeridgian|156||||30|220|QLD|No|44021|45110|||||Eromanga and Surat Basins. Aquitard. Type section in AOP Westbourne 1.|Fluvial-lacustrine sediments: fine-grained sandstone interbedded with siltstone, claystone, minor coal.|siliciclastic sedimentary rock|organic rich sedimentary rock|intracratonic|N||02-AUG-23
Westella Suite|73375|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Lower Devonian|414.7|2.4|inferred||Late Silurian|416.8|2.5|inferred|||||No|69002||Burton, G.|24-MAY-07|||For use on Map Sheet 8136; nearest town is Byrock. Bourke 1:250k area. To be pub: 2008? Explan. Notes for SUSSEX and BYROCK 1:100K map sheet, GSNSW. Incorporates the Byrock Granite (age: 414.7 +/- 2.4 Ma, SHRIMP U-Pb (Black 2006)) and Pendianna Tank Granite (latter also Reserved).|A group of quartz-feldspar-biotite granites with mafic enclaves.|acid intrusive rock|||Y|I-type|17-JAN-23
Westerly Leucogranite|27929|Westerly Muscovite Granite|19804|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Late Silurian||||intrusion|Late Silurian||||||||No|12185|||||||Leucogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Western Sands|19817|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41290|||||||||||N||17-JAN-23
Westley Park Sandstone Member|19834|Westley Park Sandstone|19835|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Broughton Formation|2659|||Late Permian||||deposition|Late Permian||||||190||No|29900|||||||Green-grey volcaniclastic sandstone, with locally abundant marine fossils. Displays evidence of large dropstones and glendonites.|siliciclastic sedimentary rock|||N||17-JAN-23
Westlyn Igneous Complex|82527|West Lynne Serpentinite|29534|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Fifield Suite|77333|Upper Ordovician|||inferred||Middle Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. Includes 7 informal subunits in GSNSW seamless geology dataset 2023.|Ultramafic igneous rock, metabasalt; Fine- to medium- to coarse-grained serpentinite.|ultramafic igneous rock|||Y||21-JUL-23
Wet Lagoon Volcanics|35791|Coopers Creek Volcanics|4627|||Yes|Formation, beds|Formal|Resvd name published|Defined|Campbells Group|3427|||Late Silurian|||inferred, overlying unit|eruption|Wenlock|||inferred||||NSW|No|50232||Scott M.|23-MAR-01|||Goulburn 1:250 000 sheet area. Replaces invalid Coopers Creek Volcanics, Coopers Creek Dacite.|Crystal-rich to crystal-lithic rhyolitic to dacitic volcanic sandstone. Minor porphyritic rhyolitic to dacitic lava. Volcaniclastic sandstone, siltstone, mudstone, and shale. Rare calcareous sedimentary rocks and limestone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Whackatane|41422|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Roberts, J.|29-JUL-04|||To replace White Rocks originally used by UNE students - now in use as White Rocks Limestone (Knight et al, 1976)|||||N||17-JAN-23
Whaka Coal Member|77392|||||Yes|Member, phase|Informal|Resvd name published|Briefly described|Trinkey Formation|18599|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW Seamless Geolgoy 2021, as a member of Trinkey Formation, Nea Subgroup, Black Jack Group.|Thick sequence of predominantly dull and minor bright coal with many claystone, siltstone and minor sandstone bands.  The majority of the bands were deposited as reworked or airfall tuff|organic rich sedimentary rock|acid volcanic rock||N||17-JAN-23
Wheelihans Gap Ignimbrite Member|70514|Wheelihans|41423|||Yes|Member, phase|Formal|Resvd name published|Defined|Merlewood Formation|26028|||Visean||||intrusion|Mississippian||||||||No|62095|62095|||||In the Werrie block/Tamworth Belt.  See also variations/abbreviations Wheelihans Ignimbrite and Wheelihans Gap Member.|Fine unwelded to slightly welded, grey, purple or beige ignimbrite with rare phenocrysts of plagioclase, minor quartz and opaque minerals.|acid volcanic rock||forearc|N||17-JAN-23
Wheeney Creek Formation|73405|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kayrunnera Group|9352|||Floian||||deposition|Floian||||||500||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||To be used on the Koonenberry 1:500 000 map sheet.|Thin, discontinuous lenses of fine- to medium-grained recrystallised limestone; grey, laminated to massive intraclast limestone, and brown to grey, moderately-bedded biomicrite (hyolithids, trilobites, bivalves).|carbonate sedimentary rock|||N||17-JAN-23
Wheeo Basalt|24570|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Miocene|14.4||isotopic, K/Ar|eruption|Miocene|21||isotopic, K/Ar|||110|NSW|Yes|39848|39848|P.Bishop|28-MAR-84|Walter, A.|04-OCT-84|Incorporates Bevendale Basalt , Pomeroy Basalt, Divide Basalt (GSNSW 2010)|Black alkali basalt to basanite flows, containing porphyritic olivine and Ti-augite, with flow banding, vesicles and doleritic textures.|basic volcanic rock|||N||27-APR-23
Whick Whack Suite|69869|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||Keverstone Supersuite|69867|Devonian|||||Devonian||||||||No|64238||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).|||||Y||17-JAN-23
Whinfell Chert|24097|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Girilambone Group|27158|||Ordovician|||inferred|deposition|Ordovician|||inferred|||1000|NSW|No|39618|39618|E.A.Felton|22-MAY-78|||Originally of Ballast Formation (Felton 1981). Appears to have been formally downgraded to Ballast Chert Member of Ballast Formation for some years, but upgraded to Formation rank in 2017. Updated from GSNSW seamless geology dataset 2021.|Thin-bedded chert and nodular chert (commonly radiolarian-bearing), lesser pelite, minor fine-grained quartzose metasandstone.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Whinstone Basalt|19873|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Neogene||||eruption|Cenozoic|||||||NSW|Yes|32820||Richardson S.J.||Hawke, J.|20-FEB-79||Olivine phenocrysts are set in a dark, fine-grained groundmass of plagioclase, olivine, augite and magnetite. The olivine has brownish inclusions of ?spinel.|basic volcanic rock|||N||17-JAN-23
Whipstick Monzogranite|76995|Whipstick Adamellite|24098|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Whipstick Suite|31660|Emsian|403.9|2.6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Emsian|403.9|2.6||||||No|72528||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Ungrouped. Also published in GSNSW seamless geology.|Felsic coarse-grained monzogranite, abundant plagioclase laths, interstitial to large quartz grains.|acid intrusive rock|||Y|I-type|29-SEP-23
Whipstick Suite|31660|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Emsian|403.9|2.6|isotopic, U/Pb-Pb/Pb ion probe||Emsian||||||||No|42726||||||Shown as Wyangala Batholith in Chappell et al (1991).||acid intrusive rock|||Y||17-JAN-23
Whistle Waa Granite|19880|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Cowra Suite|31569|Silurian||||intrusion|Silurian||||||||No|42726||||||Formal name not intended in Chappell et al (1991) but use continued on BATHURST 1:250 000 sheet. Intrudes Walli Volcanics. Forms a large elongate body more than 25km long and up to 8km wide.  Of the probably obsolete Cootralantra Suite.|Coarse- to medium-grained, equigranular, biotite granite with occasional xenoliths.|acid intrusive rock|||Y||17-JAN-23
Whitbarrow Creek Complex|23186|Gilgai complex|7219|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Ordovician|||||Upper Ordovician||||||||No|23173||Stewart R.|30-AUG-94|||Cobar 1:250 000 sheet area. (Jones 1991).|Dunite, olivine pyroxenite.||||N||21-JUL-23
White Rocks Ignimbrite Member|70473|White Rocks Tuff Member|70475|||Yes|Member, phase|Formal|Variation of published name|Defined|Currabubula Formation|5055|||Pennsylvanian|||inferred|intrusion|Pennsylvanian|315.3|3.5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|23|||No|62095|62095|||||Reserved as White Rocks. In the Werrie block/Tamworth Belt.|Welded rhyodacitic ignimbrite with a vitrophyric base.|acid volcanic rock||forearc|N||17-JAN-23
White Tank Limestone Member|19914|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Meryula Formation|11741|||Lochkovian||||deposition|Lochkovian|||||||NSW|No|35287|39618|||||Contains early Lochkovian age-diagnostic conodont.|Limestone.|carbonate sedimentary rock|||N||04-AUG-23
Whitebridge Conglomerate Member|19917|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|Kahibah Formation|25098|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|43447||||||This Member was dropped ~1999. Formerly of Kahibah Formation, Adamstown Subgroup, Newcastle Coal Measures. Apparently reinstated in ~2015 when Adamstown Subgroup reinstated. Updated from GSNSW seamless geology dataset 2021.|Polymictic conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Whitehaven Coal Member|77382|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Maules Creek Formation|11472|||Kungurian|||inferred|deposition|Artinskian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Used in GSNSW seamless geology dataset 2021.|Coal: Typically high volatile, very low ash, bituminous (thermal/coking) coal, ranging in thickness, splitting and coalescence to the east|organic rich sedimentary rock|||N||17-JAN-23
Whiteheads Granite|35789|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Pragian||||intrusion|Pragian||||||||No|50234||Scott M.|23-MAR-01|||Goulburn 1:250 000 sheet area.  Part of the Wologorong Batholith.|Cream to grey biotite granite with plagioclase phenocrysts|acid intrusive rock|||Y||17-JAN-23
Whites Creek Coal Member|77604|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Greenfield, J. (GSNSW)|14-JUN-12|||Sydney Basin. Used in GSNSW seamless geology dataset 2021. Equivalent to the Lower Donaldson Coal Member.|Coal seam with ranging thickness and distribution. Seam splits, sometimes complexly. Coal is generally high volatile with medium to high sulphur levels.|organic rich sedimentary rock|||N||17-JAN-23
Whitlock Conglomerate Member|24099|||||Yes|Member, phase|Formal|Resvd name published|Defined|Burthong Formation|3177|||Lower Devonian||||deposition|Pridoli||||||400|NSW|No|41528|41528|G.MacRae|11-MAY-83|||Used in GSNSW seamless geology dataset 2021.|Massive- and cross-bedded granule to cobble conglomerate with minor sandstone and siltstone.||||N||24-JUL-23
Whitlow Formation|26212|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Visean||||deposition|Tournaisian|||||||NSW|Yes|41328|41328|Aitchison J.C. et al.|21-APR-88|Walker, A.|27-FEB-91|Max. thickness not known because of faulting and poor exposure.|Low grade regionally metamorphosed, multiply deformed thickly bedded, feldspathic and volcanic lithic wacke, interbedded siltstone, fine wacke and minor conglomerate and rare olistostromal limestone; some siltstone and wacke are tuffaceous.|siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Whoey Tank Formation|24100|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Walters Range Group|24072|||Emsian||||deposition|Pragian|||||||NSW|No|41394|41394|S.Trigg|29-OCT-82|||lith desc from GSNSW seamless geology 2023.|Massive-bedded and cross-bedded, pebbly feldspathic-lithic sandstone (feldspathic litharenite).||||N||11-SEP-23
Why Worry Suite|31661|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Late Silurian||||||||No|42726|||||||Tonalites.|acid intrusive rock|||Y|I-type|17-JAN-23
Why Worry Tonalite|23193|Why Worry Granite|26999|||Yes|Formation, beds|Formal|Resvd name published|Described|||Why Worry Suite|31661|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Chappell B.W., Lewis P.|28-NOV-75|||Card. BD as Why Worry Granite in Chappell et al (1991), but not intended as formal name.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Whybrow Coal Member|19944|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Whybrow Seam|19946|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Whychetella Formation|19948|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Pridoli||||deposition|Ludlow||||||380||No|43476|23170|||||Lithology description from GSNSW seamless geology 2023.|Red-brown to light fawn cleaved mudstone, sporadic and minor lithic and quartz sandstone interbeds.|fine grained siliciclastic rock|||N||28-SEP-23
Whylandra Formation|27000|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||1870||No|43476|23170||||||Lithic sandstone, volcaniclastic sandstone, siltstone, tuffaceous siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Whynot Coal Member|27932|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Malabar Formation|11055|||Late Permian||||deposition|Late Permian||||||||No|29942||||||||organic rich sedimentary rock|||N||17-JAN-23
Wiagdon Granite|19959|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Gulgong Suite|31452|Pennsylvanian||||intrusion|Pennsylvanian||||||||No|43515||||||Bathurst 1:250 000 sheet area.  Chappell et al (1991) included this in Gulgong Suite, but not included in Gulgong Plutonic Suite as redefined by NSWGS (Meakin and Morgan, 1999)|Medium-grained, felsic, equigranular, biotite hornblende granite|acid intrusive rock|||Y|I-type|17-JAN-23
Wianamatta Group|19967|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Triassic||||deposition|Anisian||||||300|NSW|No|43346|35690|||||See also Lexicon.|Dominantly shale with sporadic thin lithic sandstones.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||28-AUG-23
Widden Brook Conglomerate|24103|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Lopingian||||||38||No|43361||R.Goldberg|08-APR-68|||Lith desc updated from GSNSW seamless geology 2023. Shown as Late Permian by GSNSW. Published references giving Early Triassic age may be out of date?|Basal conglomeratic quartz sandstone, minor shale.|siliciclastic sedimentary rock|||N||02-SEP-23
Widgelands Serpentine|19982|||||Yes|Formation, beds|Formal|Unknown or process pending|Described||||||||||||||||||No|34449|||||||||||N||17-JAN-23
Widgelli Pedoderm|19986|Widgelli Member|19984|||Yes|Member, phase|Formal|Variation of published name|Defined|Shepparton Formation|25474|||Upper Pleistocene|||||Upper Pleistocene|||||||VIC|No|35272|42966||||||Pedoderm||||N||17-JAN-23
Wightmans Hill Conglomerate|19998|Wightmans Hill Formation|19999|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Taggerty Subgroup|17652|||Upper Devonian||||deposition|Upper Devonian||||||30||No|35277|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Wilangee Basalt|29142|Wilangee Volcanics|20005|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Wendalpa Subgroup|19731|||Cryogenian||||eruption|Cryogenian||||||||No|35199|||||||Black, variably altered, amygdaloidal, vesicular basalt with plagioclase, actinolite and magnetite.|basic volcanic rock|||N||17-JAN-23
Wilbertree Formation|31300|Wilbertree Formation""|20007|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Toongi Group|26178|||Silurian||||deposition|Silurian||||||||No|50590||Warren A.|25-FEB-97|||Dubbo 1:250 000 sheet area.|||||N||17-JAN-23
Wild Ash Group|82703|Wildash Group|20016|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.Probably replaces Wildash Group. Neither name found in GSQ's GeoResGlobe [CEB Sep2021].|Felsic volcanic rocks and related volcanic-sedimentary rocks.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wild Cattle Trachyandesite|83659|Wild Cattle Trachyte Member|20009|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Aquitanian|22.8|.5|isotopic, K/Ar||Chattian||||||||No|73581||||||May be intended to replace Wild Catle Trachyte Member (of Governors Chair Volcanics) used in GSNSW seamless geology 2021.|trachyandesite (originally described as a melanotrachyte)|intermediate volcanic rock|||N||05-FEB-23
Wild Cattle Trachyte Member|20009|Wild Cattle Trachyte|20010|||Yes|Member, phase|Informal|Variation of published name|Mentioned|Governors Chair Volcanics|23634|||Aquitanian|22.8|.5|isotopic, K/Ar|eruption|Chattian||||||||No|39969||||||May be obsolete. May have been absorbed into the Main Range Volcanics? (GSQ view). Of Stevens, 1965; Grenfell, 1984; Ewart & Grenfell, 1985. Never described in detail. Still in use in NSW seamless geology 2021. This name may be replaced by the Wild Cattle Trachyandesite of Simpson & Sutherland (2022)|Melanocratic trachyte with benmoreite and rare interbedded basalt.|intermediate volcanic rock|||N||17-JAN-23
Wild Wave Granodiorite|25625|Wild Wave Granite|20015|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Ludlow||||intrusion|Ludlow|418|2|isotopic, Rb/Sr|||||No|39083||||||Max Age: 418 (+/-) 2 Ma (Rb-Sr).|Granodiorite.|acid intrusive rock|||Y||12-OCT-23
Wilgaroon Granite|27615|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Emsian|408|17|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Ludlow|||||||NSW|Yes|35383|71345|Baker C.J., Schmidt B.L., Sherwin L.||Bryan, J.H.|27-JUN-75|Type location: OXCOPJG0774, a large tor measuring 20m wide x 3 m high at Lat: -30.9764 Long: 145.7059 (GR GR676418 6572292). Named for the Wilgaroon homestead. First described and defined by Baker et al., 1975. Byrnes (1993) interpreted the granite to lie at the northern end of the Wagga tin belt. Exposed on both the Cobar and Bourke 1:250 000 map sheet areas (see p25 for more detail about distribution). Coincident magnetic and gravity lows in the area of the type localities; rwo NW trending magnetic lows approximately 4km long between White Tank and Darling Downs.|Muscovite-biotite granite, greisenous granodiorite, porphyritic microgranite (S-type)|acid intrusive rock|||Y|S-type|17-JAN-23
Wilgunya Subgroup|20031|||||Yes|Subgroup|Formal|Unknown or process pending|Briefly described|Rolling Downs Group|16267|||Cenomanian|||inferred|deposition|Lower Cretaceous|||inferred|||||No|29591||||||Constituent unit Wallumbilla Formation also used in Surat Basin. Unclear if Wilgunya Subgroup is used in Surat Basin.|Fossiliferous mudstone, minor labile, glauconitic and quartzose sandstone, siltstone, limestone, calcareous concretions common.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wilhelmshohe Tonalite|20034|Wilhelmshohe tonalite|20035|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Uralla Suite|18973|Lower Triassic||||intrusion|Late Permian||||||||No|30789||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Within the Uralla Supersuite.|Medium to coarse grained hornblende-biotite tonalite|acid intrusive rock|||Y|I-type|22-AUG-23
Wilkawillina Limestone|20045|Wilkawillina limestone|20048|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Hawker Group|8159|||Middle Cambrian||||deposition|Early Cambrian||||||||No|65625||||||Note: there is an unconformity in the Wilkawillina Limestone, so some authors have shown (informal) Upper and Lower parts. See also misspelt Wilkawilina Limestone.|Light to dark grey, massive, bedded lime mudstone, wackestone, grainstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||13-JUN-23
Wilkerboon Conglomerate Member|24106|||||Yes|Member, phase|Formal|Resvd name published|Defined|Roset Sandstone|26127|||Lochkovian||||deposition|Lochkovian|||||||NSW|No|41528|41528|S.Trigg|05-OCT-82|||Used in GSNSW seamless geology dataset 2021.|Quartz-lithic granule to pebble conglomerate, and interbedded medium-grained sandstone.||||N||21-JUL-23
Wilkinson Cliff Limestone|20054|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Late Silurian||||deposition|Late Silurian||||||||No|43479||||||||carbonate sedimentary rock|||N||17-JAN-23
Wilkurra Granite|38898|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Devonian|417|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Late Silurian|428|15|isotopic, U/Pb-Pb/Pb ion probe||||NSW|Yes|73177||Moffitt, B.|14-AUG-03|Meakin, S.|04-SEP-03|Intersected at 618.2 m in DM Wilkurra DDH1. Ages from Wilde (2000). See Wilkurra granite.|Medium to coarse grained unfoliated, high-level, high-temperature, muscovite-biotite-cordierite sodic granite. Minor xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Willandra Sandstone|39534|||||Yes|Formation, beds|Formal|Other new published name|Defined|Margules Group|69897|||Llandovery|||inferred|deposition|Katian|||inferred, biostratigraphic correlation|||||No|61964|61964|Colquhoun, G.|27-OCT-03|||Sequence also informally referred to as "Eulendool Formation" (MacRae and Pogson (1990).  Not related to Wilandra Airstrip Basalt. Intruded by Yalgogrin and Kikoira Granites. Correlates with New Country Sst. in Victoria. May be equivalent to Trigg's 'thick-bedded' sequence in the former Tallebung Group (1987). For palaeontological detail see RefID: 61964 (p259). Proposed to be reassigned from the Bendoc Group to Margules Group in 2018 and GSNSW seamless geology 2021 confirms this change. Age based on graptolites.|Grey to black, medium-grained, medium bedded quartz-rich sandstone, interbedded black quartzofeldspathic muddy sandstone and richly graptolitic black shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Willawarra Rhyodacite Member|70517|Willawarra|36740|||Yes|Member, phase|Formal|Variation of published name|Defined|Woodton Formation|31412|||Sakmarian|290.6||inferred, geological correlation|eruption|Sakmarian||||||||No|62095|62095|||||Also supersedes Willawarra Dacite of Lowe (1971) and Willawarra Rhyodacite of Kelk (1986).  Other correlated member of the Woodton Fm (ie, Brogans Rhyodacite) dated at 290.6Ma which as Asselian (Roberts 2006 timescale) or Sakmarian (ICS 2004 timescale).|Rhyodacite|acid volcanic rock||extensional continental backarc|N||17-JAN-23
Willawong Creek Granite|35405|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gooramma Suite|70027|Emsian||||intrusion|Lochkovian|418.9|2.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|50231||Pogson D.|17-APR-00|||BOOROWA 1:100 000 and GOULBURN 1:250 000 sheet area.|Massive grey to pinkish grey medium-grained equigranular hypersthene-augite-biotite-hornblende granite, granodiorite and monzodiorite, and biotite-hornblende microgranite.|acid intrusive rock|||Y||17-JAN-23
Willbriggie clay loam|20078|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39512|||||||||||N||17-JAN-23
Willdamar Tonalite|74586|Willdamar Granodiorite|40987|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Gunning Suite|31580|Late Silurian||||intrusion|Early Silurian||||||||No|64238||||||May have superseded Willdamar Granodiorite? Name updated to meet IUGS standards; see previous name for definition; name changed on advice from John Greenfield and Gary Colquhoun, GSNSW (GO'C 10/7/12).|Bluish-grey, medium-grained, foliated, equigranular hornblende-biotite granodiorite to tonalite.  Low K, Th and U radioelement response.|acid intrusive rock|||Y|I-type|17-JAN-23
Willi Willi Limestone Member|20079|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|||||Permian||||deposition|Permian||||||||No|34293||||||||carbonate sedimentary rock|||N||17-JAN-23
Williams Creek Conglomerate|73407|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kayrunnera Group|9352|||Late Cambrian||||deposition|Late Cambrian||||||||No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet.|Polymictic basal conglomerate with wide range of local and foreign clasts. Highly cleaved near Nuntherungie.|siliciclastic sedimentary rock|||N||17-JAN-23
Williams Peak Granite|73403|||||Yes|Member, phase|Formal|Resvd name published|Defined|||||Middle Cambrian||||intrusion|Middle Cambrian|515.1|2.7|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. See also probably misspelt Williams Creek Granite.|Porphyritic rhyodacitic rock containing phenocrysts of feldspar and volcanic quartz (to 3 mm) in a fine-grained matrix; pale-cream to buff-brown dacitic rock devoid of phenocrysts.|acid igneous rock|intermediate igneous rock||Y||17-JAN-23
Williams River Member|20084|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Chichester Formation|24219|||Visean||||deposition|Visean||||||300||No|36528|||||||Conglomerate with interbeds of volcanics at base.|medium-coarse grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Williamsdale Dacite Member|20085|Williamsdale Volcanics|26217|||Yes|Member, phase|Formal|Variation of published name|Redefined|Colinton Volcanics|4334|||Silurian||||magmatic crystallisation|Late Silurian|427.5|3.1|isotopic, U/Pb-Pb/Pb ion probe||2000|4000|NSW|Yes|49690||||||Essentially a redefinition of Richardson's Williamsdale Volcanics.|Massive rhyodacitic tuff to dacitic ignimbrite, minor rhyolitic intrusions.|acid volcanic rock|||N||17-JAN-23
Williamtown Coal Member|77598|||||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Four Mile Creek Subgroup|28559|||Permian||||deposition|Permian||||||||No|||Greenfield, J. (GSNSW) after R.A.Britten|14-JUN-12|||This name revived by GSNSW 14-JUN-2012.|Coal: dull and bright bands, stoney band; carbonaceous shale with coaly inclusions|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Willigam Sandstone Member|69907|||||Yes|Member, phase|Formal|Resvd name published|Defined|Abercrombie Formation|69898|||Floian|||inferred, overlying unit|deposition|Tremadocian|||inferred||||NSW|No|64238||Thomas, O. (GSNSW)|15-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006). Part of the Adaminaby Group.|Poorly sorted, feldspar lithic quartz sandstone and wacke, interbedded with siltstone, mudstone and shale; graded bedding and ripple cross lamination are common in sandstone beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Willoona Tonalite|27934|Willoona Granodiorite|27005|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Clear Range Suite|31567|Late Silurian||||intrusion|Late Silurian||||||||No|31580|||||||Xenolith-rich tonalite and granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Willotia|76719|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Gibson, D., Magee, J (GA groundwater)|15-DEC-11|||To be used for Cenozoic unit in the Lake Tandou 1:100k sheet 7332 area (SI54-3).|||||N||17-JAN-23
Willow Glen Formation|20119|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tannabutta Group|30153|||Pridoli||||deposition|Wenlock|||||500|900|NSW|Yes|36285|23170|Pemberton J.W.||Felton, E.A.|25-JUN-79||Conglomerate, pebbly and lithic arenite, fossiliferous mudstone and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Willow Tree Coal Member|77100|Willow Tree Coal Measures|20120|||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Willow Tree Formation|29148|||Permian||||deposition|Permian||||||300||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Previously Willow Tree Coal Measures of Hanlon (1955). Overlie Werrie Basalts, in Werrie Basin. Subsequently included in the Willow Tree Formation, but now distinguished as Member [GSNSW July-2012]. Coal. Technically Willow Tree Formation is invalid name, but would be easier to change this one [CEB 24-AUG2012]. Both Willow Tree Formation and Willow Tree Coal Member used (invalidly) in GSNSW Seamless Geology 2021.|Shale, sandstone, conglomerate, concretionary ironstone bands, and one 4.8 m thick coal seam. Possible oil shale outcrop in the Willow Tree area. Maximum thickness of 300m|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Willow Tree Formation|29148|||||Yes|Formation, beds|Invalid|Variation of published name|Described|||||Kungurian||||deposition|Artinskian||||||300||No|43407||||||Geological Province: Werrie Basin. Max, Thickness: 300m+. Previously Willow Tree and Werris Creek Coal Measures. These units now reduced to Members of the [invalid] Willow Tree Formation [GSNSW July-2012]|Shale, lithic sandstone, conglomerate, coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Willowie Creek beds|20121|Willowie Creek Beds|24108|||Yes|Formation, beds|Informal|Resvd name published|Defined|||||Lower Devonian||||deposition|Late Silurian|||||||NSW|Yes|38755||Fergusson C.L.|15-SEP-81|Russell, T.|10-DEC-83|Of the "Silverwood Association". Includes informal 'limestone' and 'volcanics' members. The limestone member is probably equivalent to the Jackadgery Limestone of Pickett (GS1975/340)[ advice from J.Rutledge GSNSW 28-FEB-2018]. Equivalent to the Silverwood Group. may have been replaced by Silverwood Group?|Tuffaceous mudstone interbedded with fine-grained, intermediate to basic igneous rocks; minor lithic wacke, foliated metaclaystone and metasiltstone, conglomerate, limestone breccia, chert, jasper, marble, calc-silicate skarn and iron-ore|siliciclastic sedimentary rock|basic volcanic rock|island arc|N||17-JAN-23
Willowrie Diorite|82704|Willowie Diorite|77328|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Triassic|244.3|2.5|isotopic, K/Ar||Lower Triassic|||inferred|||||No|71628||||||Spelling correction. Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Fine- to medium-grained diorite and microdiorite plug.|intermediate intrusive rock|||Y|I-type|27-AUG-23
Willows Formation|77159|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Upper Pleistocene|.04||luminescence|deposition|Upper Pleistocene|.06||luminescence|||||No|24042||||||Misspelt in the database as Willow Formation between 2002 and 2012. Age: 56 - 38 ka (thermoluminescence).|Red, red-brown silty loam, predominantly alluvial; ~15% aeolian|regolith|||N||17-JAN-23
Willurah igneous intrusions|81160|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesozoic|||inferred||Middle Devonian|||inferred|||||No|70718||||||Hay 1:250 000 sheet area. No outcrop. Aeromag. Character: Eleven discrete, roughly circular (1-3 km wide), low amplitude (5-35 nT peaks) anomalies. Interpreted as an igneous intrusion. Intrudes the Booroorban granite suite, but not the overlying Murray Basin sediments.|Igneous intrusions.|igneous intrusive rock|||Y||17-JAN-23
Willuri Formation|39257|Willuri|30064|||Yes|Formation, beds|Formal|Resvd name published|Defined|Currangandi Group|38099|||Pennsylvanian||||deposition|Mississippian||||||1920|NSW|Yes|68003|50613|Roberts J.|02-FEB-96|Taylor, G., Neef, G.|24-SEP-03|Originally reserved as Willuri.   Consists of 4 stratigraphically recognisable packages: Kaputar, Piney Range, Tulcumba and Gunnan - informal units containing individual successions of distinctive mappable volcanic units.  Thickness in type section: 1565m. Said to also include the Taggarts Mountain Ignimbrite Member and the Iventure Ignimbrite Member (which are already recorded in the Currabubula Formation).|Rhyolitic to andesitic ignimbrites, rhyolite flows, dacite domes, rhyolitic agglomerate and conglomerate, interbedded thinly bedded ash-rich siltstone, medium to thick bedded medium to coarse grained volcanolithic sandstone and conglomerate|acid volcanic rock|medium-coarse grained siliciclastic rock|forearc|N||17-JAN-23
Willyama Supergroup|20135|Willyama Complex|20130|||Yes|Supergroup|Formal|Variation of published name|Defined|||||Statherian|1640||||Statherian|1730|||||9000|NSW|No|38969|39662|||||Located across the Olary and Broken Hill Domains (Olary / Broken Hill Province and Curnamona Province); also Euriowie Block, Border Downs Block.  Replaces Willyama Complex and Willyama Series. Age: ~1730-1650Ma. Succession of metasediments and minor metavolcanics, extensively intruded by syn-depositional dolerite or gabbro (now basic gneiss) dykes and sills and granite (now granite gneiss) sills (2008).|Metasediments, quartzofeldspathic gneiss, composite gneiss, quartz-albite rocks, basic gneiss, calc-silicate and calc-albitite rocks; and metavolcanics.|high grade metamorphic rock||continental rift|N||17-JAN-23
Wilmatha Granite|20146|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Lower Devonian||||intrusion|Late Silurian|422|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|43510|||||||I-type. Fine- to medium-grained weakly porphyritic pale pink leucogranite commonly with miarolitic cavities and micrographic groundmass.|acid intrusive rock|||Y|I-type|10-AUG-23
Wiltagoona Sandstone|30452|Wiltagoona Sandstone Member|20182|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Winduck Group|25683|||Pragian||||deposition|Lochkovian||||||5000||No|43153|43774|||||Previous name defined. Time-transgressive basal and upper boundaries. Records syn-rift development.|Quartz-rich arenite interbedded with mudrock/mudstone.|siliciclastic sedimentary rock|||N||04-AUG-23
Wilton Formation|20184|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Sydney Subgroup|17602|||Capitanian||||deposition|Wordian||||||250||No|34060|||||||Fining upward sequence from conglomerates and sandstones to siltstone, and finally coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||03-SEP-23
Winburn Tuff|20192|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||||||eruption|||||||||No|43515|43517||||||||||N||17-JAN-23
Windamere Volcanics|24110|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Tannabutta Group|30153|||Silurian||||eruption|Silurian||||||1500||No|40106|23170|J.Pemberton|24-MAY-78||||Dacite and rhyolite lavas and autoclastics.|acid volcanic rock|||N||05-SEP-23
Windellama Limestone Member|20214|Windellama Limestone|26221|||Yes|Member, phase|Formal|Other new published name|Redefined|Tangerang Formation|27094|||Pragian||||deposition|Lochkovian|||biozone|||283|NSW|No|39568|39568|||||Appears as Windellama Limestone as a member of the Tangerang Formation (Bindook Group) on the GOULBURN 1:250K provisional (2008) map sheet and the 2013 final version. Includes Lochkovian vertebrate fossil fauna.|Pale grey, well-bedded fossiliferous limestone; fossil-rich base passes up into relatively fossil-poor, dark grey, more massive limestone.|carbonate sedimentary rock|||N||17-JAN-23
Windermere Granite|20217|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34544||||||||acid intrusive rock|||Y||17-JAN-23
Winders Hill Granodiorite|27007|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Carboniferous||||intrusion|Carboniferous||||||||No|34444||||||Lithology description from GSNSW seamless geology 2023.|Granodiorite, diorite, andersite.|acid intrusive rock|||Y||28-SEP-23
Windouran Swamp Granodiorite|82698|Windouran Swamp granodiorite|76045|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Jawbone Creek Granodiorite Suite|76043|Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021. Granodiorite interpreted from geophysics. Interpreted as similar to the Wanganella Granodiorite.|Granodiorite interpreted from geophysics.|acid intrusive rock|||Y||17-JAN-23
Windover Quartz Monzodiorite|23219|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Wallundry Suite|29582|Llandovery|431|4|isotopic, Rb/Sr|intrusion|Ashgill||||||||No|22638|22638|Wormald R., Warren A.|15-JAN-93|||Cootamundra 1:250 000 sheet area. BD as Windover Granite in Chappell et al (1991),but not intended as formal name. Dated 431 +/- 4 Ma by Rb- Sr.||intermediate intrusive rock|||Y||17-JAN-23
Winduck Group|25683|||||Yes|Group, Suite|Formal|Variation of published name|Defined|Cobar Supergroup|27673|||Pragian||||deposition|Pridoli||||deposition|2200|6000|NSW|No|37772|41126|R.A.Glen|20-AUG-79|||Cobar Basin, Winduck Shelf.|Crossbedded, occasionally with hummocky cross-stratification, parallel-laminated and commonly ripple cross-laminated, well sorted, fine to medium-grained quartzose sandstone with lesser interbedded siltstone and mudstone.|siliciclastic sedimentary rock|||N||04-AUG-23
Winduella Tonalite|35790|Wheeo Granite|19864|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Burrawinda Suite|69893|Ludlow||||intrusion|Wenlock|427.9|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|50232||Scott M.|23-MAR-01|||Part of the Wyangala Batholith.|Grey porphyritic biotite tonalite, relict calcic cores in plagioclase. Diorite enclaves, and sedimentary xenoliths of Adaminaby Group rocks are found close to the foliated (faulted) eastern margin. High Th radioelement response.|acid intrusive rock|||Y|S-type|17-JAN-23
Windy Creek Diorite|20235|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Ordovician||||intrusion|Upper Ordovician||||||||No|60085|||||||Gabbro, diorite, metabasic intrusives, pyroxenite|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Wingabutta Formation|81944|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Warrumbungle Volcanic Complex|77165|||Cenozoic|||inferred||Cenozoic|||inferred||||NSW|No|72700|||||||Dark to medium green, white weathering, porphyritic to aphanitic basalt (hawaiite) lava deposits and minor autobreccia.|basic volcanic rock|||N||17-JAN-23
Wingara Formation|33407|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Hervey Group|25947|||Upper Devonian||||deposition|Upper Devonian||||||200||No|23217||Young G.C.|27-APR-99|||Forbes 1:250 000 sheet area. Previously Cookamidgera Formation (in part). Used in GSNSW seamless geology dataset 2021.|White, cross-bedded quartz sandstone.||||N||21-JUL-23
Winmatti beds|69705|Winmatti Beds|24114|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Pleistocene|||||Pleistocene||||||||No|61155||||||Age: <1.5Ma.|||||N||17-JAN-23
Winnambool Formation|20250|||||Yes|Formation, beds|Formal|Other new published name|Defined|Murray Group|13544|||Early Miocene||||deposition|Chattian||||||130|VIC|No|70961|42966|||||Revised stratigraphy for the Murray Group (Lukask and James 1999) up to Murray Supergroup, included this unit in its definition, along with Geera Clay and Ettrick Formation.  For discussion on this revision, see RefID: 64237 - Part of the stratigraphic scheme of Lawrence (1966). Retained as a formal unit through the Lawrence (1975) and Lawrence and Abele(1988) revisions where it overlay the Geera Clay. Then became a constituent of the Murray Supergroup of Lukasik and James (1998) and was retained as the current and formal name in the subsequently reinstated Murray Group in South Australia.|Platform/lagoonal deposits - calcareous clays; terrestrial sands and gravels.Marly limestone with thin interbeds of grey skeletal calcsiltite and calcarenite.|regolith|||N||17-JAN-23
Winterbourne Monzogranite|76973|Winterbourne Adamellite|20262|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Hillgrove Supersuite|67847|Cisuralian||||intrusion|Pennsylvanian||||||||No|||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. Previously shown as Permian, but GSNSW has given a Carboniferous symbol. Used in GSNSW seamless geology dataset 2021 (as Permian unit).|Biotite monzogranite. Commonly foliated S-type biotite granitoids commonly with blue quartz, and minor amphibole, garnet and graphite|acid intrusive rock|||Y|S-type|17-JAN-23
Winton Formation|20268|Winton Series|33253|||Yes|Formation, beds|Formal|Variation of published name|Defined|Manuka Subgroup|11215|||Cenomanian||||deposition|Albian|||||400|1200|QLD|No|44269|69946|||||Of Whitehouse (1955). See also Eyre Formation. See also Lexicon. Neales River Group (see Strzelecki 1:250k map (1994) and explan notes (1995)). Within the Rolling Downs Group. One of the two main groundwater resources in the Great Artesian Basin. Type section was designated in Queensland by Whitehouse (1955). The type section is described as "blue shales and sandstones with intercalated coal seams met within the bores in and around Winton". (reported in Cotton et al., 2007).|Lithic and feldspathic sandstone, mudstone, siltstone, minor conglomerate; local coal, lignite and volcanic detritus.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock|intracratonic|N||13-SEP-23
Winton Limestone Member|20272|||||Yes|Member, phase|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|37987||||||||carbonate sedimentary rock|||N||17-JAN-23
Wiradjuri Volcanics|20282|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|29648|||||||||||N||17-JAN-23
Wiragulla beds|20284|Wiragulla Beds|20283|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|31706|||||||||||N||17-JAN-23
Wirchilleba Granite|27009|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|43389||||||||acid intrusive rock|||Y||17-JAN-23
Wire Gully Limestone Member|20289|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Bagdad Formation|875|||Llandovery|||inferred, biostratigraphic correlation|deposition|Llandovery|||inferred, biostratigraphic correlation|||35||No|35258||||||Llandovery age derived from conodont fossil assemblage.|Consists mainly of thinly to massively beded reddish limestone, passes westward to a thick bedded limestone conglomerate.|carbonate sedimentary rock|||N||17-JAN-23
Wirrabilla Formation|20294|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Toongi Group|26178|||Ludlow||||deposition|Ludlow||||||900||No|43476|23170||||||Lithic sandstone, minor conglomerate, hornfels.|siliciclastic sedimentary rock|||N||07-SEP-23
Wirrealpa Limestone|20300|||||Yes|Formation, beds|Formal|Other new published name|Described|Moralana Supergroup|26314|||Middle Cambrian|509|||deposition|Early Cambrian|523|2|||105|140||No|65625||||||Age: ~509Ma.|Lime mudstone; nodular limestone with calcareous silty matrix; skeletal, peloidal and oolitic beds; stromatolite and thrombolite bioherms; micrite; siltstone.|carbonate sedimentary rock|||N||17-JAN-23
Wirrilah Conglomerate Member|26225|Barrow Range Beds|1212|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baledmund Formation|954|||Lower Devonian||||deposition|Pridoli||||||150|NSW|No|35287|42566||||||Grades from a sedimentary breccia - unsorted, clast-supported, subangular to subrounded, pebble to cobble conglomertate -  upwards to a quartzo-feldspathic sandstone with large scale crossbedding.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wirrinya Granite|25639|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Bindogandri Suite|31552|Middle Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|29910|29907|Bowman H.N.||Hawke, J.|03-JUN-76|Forbes 1:250 000 sheet area.|Fine-grained, pink, micrographic granite; A-type.|acid intrusive rock|||Y|A-type|17-JAN-23
Wisemans Arm Formation|27937|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Pennsylvanian||||deposition|Mississippian||||||||No|36071||||||Older references show this unit as Devonian, but recent references eg Manilla map (2010), say Carboniferous.|Andesitic lithic wacke, siltstone and granule to boulder conglomerate, with olistoliths of andesite, limestone, chert, basalt and siltstone|siliciclastic sedimentary rock||accretionary wedge|N||17-JAN-23
Witchetella Formation|39410|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24126|||||||||||N||17-JAN-23
Wittingham Coal Measures|20334|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|Singleton Supergroup|16939|||Late Permian||||deposition|Late Permian||||||1200||No|29942|||||||Coal seams, tuff, claystone, siltstone, sandstone, conglomerate.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Wog Wog Complex|23235|Wog Wog Gabbro|20343|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Cretaceous|||||Cretaceous||||||||No|22815||Lewis P.C.|24-MAR-94|||Bega 1:250 000 sheet area. BD as Wog Wog Gabbro in Chappell et al (1991). Age suspected to be Jurassic or Cretaceous. Shown in GSNSW Seamless geology 2023 as Cretaceous.|Very coarse-grained 'amphibolite' rocks; coarse-grained gabbro, medium- to fine-grained basalt.||||Y||17-AUG-23
Wogarda Argillite|20347|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Tamworth Group|17757|||Emsian||||deposition|Emsian||||||400|NSW|No|43400|43400|||||Defined 1961.|Cherty argillites, fine lithic arenites, interbedded sandstone and mudstone, fine-grained tuffaceous siltstones, rare massive sandstone, conglomerates and limestone|siliciclastic sedimentary rock||island arc|N||17-JAN-23
Wolgolla Granite|81719|Wollgolla Granite|79959|||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|||||Lochkovian|||||Pridoli|419|2.7||||||No|71965||||||Probably misspelt when reserved as Wollgolla Granite. Probably named after DIO Wolgolla 1petroleum well.|Light brown to grey, altered and weathered, medium to coarse-grained, equigranular biotite, muscovite leucocratic granite.|acid intrusive rock|||Y||12-OCT-23
Wollomombi Granodiorite|81113|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||Hillgrove Supersuite|67847|Permian|292||inferred, geochemical correlation||Carboniferous|300||inferred, geochemical correlation|||||No|71703||||||Said to be of Kemp et al. 2009. May be sample location description?|granodiorite|acid intrusive rock|||N|S-type|17-JAN-23
Wollong Siltstone Member|26228|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Permian||||deposition|Permian|||||||NSW|No|34345|34345|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Wollundi Mudstone Member|36825|Wollundi Mudstone|35760|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian||||deposition|Permian||||||||No|23859|23859|||||Type Locality: 397300E, 6750400N||siliciclastic sedimentary rock|||N||17-JAN-23
Wologorong Granite|20375|Wologorong adamellite|20376|||Yes|Formation, beds|Formal|Other new published name|Defined|||Parkesbourne Suite|69872|Lower Devonian||||intrusion|Late Silurian|425.5|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|29989||||||Shown as Early Devonian on 'Granites of the Lachlan Fold Belt', but to be Silurian in BATHURST 1:250 000 sheet notes. Includes units previously named Tamboramboro Granite complex, Tamboramboro Granodiorite and Tamboramboro Granite.|Leucocratic, medium-coarse grained, equigranular-sparsely porphyritic granite; metasedimentary xenoliths in places; fine-medium grained leucocratic granite, aplite and rhyolite dykes; low-high K, low Th and low-medium U; low magnetic susceptibility.|acid intrusive rock|||Y||17-JAN-23
Wologorong Supersuite|69873|||||Yes|Supergroup|Formal|Variation of published name|Defined|||||Wenlock||||magmatic crystallisation|Wenlock|425.5|2.4|isotopic, U/Pb-Pb/Pb ion probe|||||No|68592||Thomas, O. (GSNSW)|14-DEC-05|||For the new GOULBURN 1:250 000 sheet (2006).  Wologorong Suite will be replaced by Parkesbourne Suite.  A distinct unit from the Bemboka Supersuite.|K-feldspar-rich, muscovite-bearing granite; medium- to coarse-grained biotite granite; fine-grained granodiorite. Generally massive. Transitional S- to I-type eastwards.|acid intrusive rock|||Y||17-JAN-23
Wolumla Conglomerate Member|29162|Wolumla Conglomerate|20382|||Yes|Member, phase|Formal|Variation of published name|Defined|Twofold Bay Formation|18746|||Upper Devonian||||deposition|Upper Devonian|||||||NSW|No|46579|46579|||||Part of Twofold Bay Formation of which the Merrimbula Group is Parent.|||||N||17-JAN-23
Wombarra Claystone|20389|Wombarra claystone|20395|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Clifton Subgroup|4163|||Lower Triassic||||deposition|Late Permian||||||30||No|29901|||||||Grey shale, minor quartz-lithic sandstone.|siliciclastic sedimentary rock|||N||21-AUG-23
Wombat Creek Group|20398|Wombat Creek Beds|20396|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Pridoli||||deposition|Ludlow||||||4000||No|70910||||||Tallangatta 1:250 000 sheet area. Superseded Wombat Creek Formation. Subdivided into: Toaks Creek Conglomerate, Gibbo River Siltstone (and Tongaro Formation?). Max. thickness: >2.5km. Geological Province: Wombat Creek Graben.|Marine and fluvial conglomerate, siltstone, sandstone, limestone megaclasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Wombeyan Limestone|20405|Wombeyan Caves Limestone|20404|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Bungonia Group|34589|||Pridoli||||deposition|Ludlow||||||||No|29993||||||Previously considered to be part of Taralga Group (Schneiber and Basden 1998). .|Massive, white to pale grey, fine- to medium-grained marble, with impure clay-rich streaks and calcite veins. Pervasively recrystallised.|metasedimentary carbonate rock|||N||17-JAN-23
Wombiana Formation|25698|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mumbil Group|13411|||Wenlock||||deposition|Wenlock||||||300|NSW|Yes|49794||S.J.Richardson|11-JAN-78|Russell, T.|18-JUN-82|Card. Described in RC91/066 p14.|Buff to light-coloured shales, siltstone, limestones and fine-grained sandstones, marble.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wombin Volcanics|24582|Wombin "Group"|34624|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Northparkes Volcanic Group|35020|||Early Silurian|436|||eruption|Upper Ordovician|445||||700|1000|NSW|Yes|40365|46522|S.J.Richardson|02-AUG-79|Russell, T.|18-JUN-82|Formerly considered to overlie the Goonumbla Volcanics. Now (1999) considered part of Goonumbla Volcanic Group.   Forbes 1:250 000 Sheet area. Subsequently part of Northparkes Volcanic Group, replaced by Northparkes Group.|Predominantly volcanic sandstone and polymictic volcanic breccia and includes some significant grey trachyandesite in addition to red/brown trachyte and ignimbrite; rare mudstone.|igneous volcanic rock|siliciclastic sedimentary rock||N||09-JUN-23
Womboyne Formation|20411|||||Yes|Formation, beds|Formal|Other new published name|Described|Cocoparra Group|4293|||Upper Devonian||||deposition|Upper Devonian||||||2930||No|43507||||||Narrandera area. Different unit from Womboyne/Wamboyne Conglomerate.|Sandstone interbedded with red siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wombramurra Formation|29164|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Parry Group|14916|||Tournaisian||||deposition|Tournaisian||||||||No|43399|43399||||||Zone of lenses of polymictic conglomerate and lithic wackes interbedded with Goonoo Goonoo Mudstone|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wommara Bed|35166|||||Yes|Bed|Formal|Other new published name|Mentioned|Fern Valley coal seam|35121||||||||||||||||No|23055||||||Newcastle Coal Measures.|||||N||17-JAN-23
Wondalga Granodiorite|20423|Wondalga Granite|27621|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Wondalga Suite|31659|Wenlock|432|1.9||intrusion|Silurian|446.6|3.4|isotopic, U/Pb|||||No|37529||||||Wenlock age reported from GSNSW seamless geology 2023. Said to intrude the Bangus Formation when that name reserved in 2020.|Hornblende-biotite granodiorite, tonalite, quartz monzodiorite, diorite; common amphibolite xenoliths|acid intrusive rock|||Y||30-SEP-23
Wondalga Suite|31659|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian|||||Silurian||||||||No|42726|||||||||||Y||17-JAN-23
Wondervale Well Granite Gneiss|70112|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Silver City Suite|70121|Statherian|1685|5|isotopic, U/Pb||Statherian|1685|5|isotopic, U/Pb|||||No|64944|64097|Stevens, B. (NSWGS)|01-MAR-06|||To be used in the Broken Hill area.|Zoned body: concordant meta-granite - coarse- to medium-grained qtz-feldspar-biotite gneiss+some zones with poikiliblastic garnets.|high grade metamorphic rock|||Y||17-JAN-23
Wondoba Coal Member|20430|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Wallala Formation|30035|||Permian||||deposition|Permian||||||||No|37094||||||Late Permian.|Tuffaceous stony coal facies.|organic rich sedimentary rock|||N||17-JAN-23
Wongabel Rhyodacite Member|26333|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Long Flat Volcanics|10619|||Late Silurian||||eruption|Late Silurian|||||||NSW|Yes|39028|40276|D.Wyborn|08-OCT-81|Russell, T.|14-SEP-82||Porphyritic rhyodacite, ignimbrite.||||N||17-JAN-23
Wongajong Formation|82706|Wongajong conglomerate|81255|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Givetian|||inferred||Llandovery|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Near clast-supported cobble conglomerate passing to matrix-supported pebble conglomerate; maroon, pebbly lithic?quartz sandstone intercalated with thin-bedded pebble conglomerate. Clasts include quartzite, metasedimentary rock, chert and vein quartz.|medium-coarse grained siliciclastic rock|||N||05-SEP-23
Wongajong conglomerate|81255|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|72083||||||Trigg (2015). A 20m-thick exposure, SE of Ardlethan.|||||N||17-JAN-23
Wongalee Leucogranite|41076|Wongalee leucogranite|20440|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Uralla Supersuite|67894|Lower Triassic||||intrusion|Late Permian||||||||No|721||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003.  Within the Uralla Supersuite. No geochron constraints on this unit, but other units in the Uralla Supersuite have ages from late Permian to Early Triassic. GSNSW shows Early Triassic age in 2023 seamless geology.|Medium to coarse grained biotite leucogranite|acid intrusive rock|||Y|I-type|22-AUG-23
Wongawilli Coal|20443|||||Yes|Formation, beds|Formal|Other new published name|Described|Sydney Subgroup|17602|||Changhsingian|253.59|.3||deposition|Wuchiapingian|254.1|.32|isotopic, U/Pb-Pb/Pb, TIMS|eruption||10||No|29900||||||Includes dated tuff beds. Lith description updated from GSNSW seamless geology 2023.|Coal, carbonaceous shale, claystone, and tuff. Tuff and claystone form distinctive bands.|organic rich sedimentary rock|||N||03-SEP-23
Wongwibinda Metamorphic Complex|20454|Wongwibinda Complex|20453|||Yes|Group, Suite|Formal|Unknown or process pending|Described|||||Sakmarian|261||isotopic, K/Ar||Gzhelian|297||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|34918||||||Variation on Wongwibinda Complex. This version of the name now preferred. Updated from GSNSW seamless geology dataset 2021.|Migmatite, minor schist, gneiss, biotite-sillimanite-cordierite-almandine-orthoclase schist, quartzite, amphibolite.|high grade metamorphic rock|foliated metamorphic rock||N||17-JAN-23
Wonnaminta Formation|76005|Wonominta beds|20465|||Yes|Formation, beds|Formal|Variation of published name|Defined|Teltawongee Group|37348|||Cambrian||||deposition|Cambrian||||||||No|66917|66623|||||Unit in Teltawongee Group. Used on Mt Arrowsmith 1:25 000.  Probably deliberate spelling and status change although NSW State list  uses Wonaminta Formation.|Grey, fine- to medium-grained, dirty, turbiditic sandstone; basal erosional contact, with sand grains to 1 mm.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Woodburn Complex|82435|Woodburn Diorite|20492|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bakers Creek Supersuite|75958|Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication.|Mafic igneous Complex comprising fine- to coarse-grained, leucocratic olivine gabbro, leucogabbro, biotite-hornblende monzogranite, and tonalite. Contains a variety of more felsic compositions: granophyres, monzogranites.|basic intrusive rock|acid intrusive rock||Y|I-type|17-JAN-23
Woodburn Diorite|20492|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Woodburn Suite|74006|Cisuralian||||intrusion|Cisuralian||||||||No|31806||||||Previously in the Hillgrove Suite.|Gabbro, diorite, granite. Calc-alkaline and tholeiitic complexes associated with the Hillgrove Plutonic Suite|basic intrusive rock|intermediate intrusive rock||Y|I-type|17-JAN-23
Woodenbong beds|20496|Woodenbong Beds|20495|||Yes|Formation, beds|Informal|Unknown or process pending|Fully described|||||Lower Cretaceous||||deposition|Upper Jurassic||||||||No|40250||||||Min Age: Early Cretaceous, Max Age: Late Jurassic, pers. comm. Cec Murray, GSQ, 04-NOV-2005.|Medium grained feldspathic to sub-labile sandstone, siltstone, conglomerate|siliciclastic sedimentary rock|||N||17-AUG-23
Woodford Coal Member|20499|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Farmers Creek Formation|24609|||||||deposition|||||||||No|39232||||||||organic rich sedimentary rock|||N||17-JAN-23
Woodlands Granite|20510|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Wangarabell Suite|31571|Lower Devonian||||intrusion|Silurian||||||||No|42726||||||Briefly described. Formal name not intended. Felsic I-type undifferentiated. Wagga Batholith. Between Temora and Young (Cootamundra 1:250k area). Not related to Woodlands Monzogranite, New England Orogen.||acid intrusive rock|||Y|I-type|17-JAN-23
Woodlands Hill Coal Member|27623|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Mount Ogilvie Formation|26055|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Replaced by informal Woodlands Hill seam in 1986?||organic rich sedimentary rock|||N||17-JAN-23
Woodlands Hill seam|20512|||||Yes|Member, phase|Informal|Unknown or process pending|Described|Mount Ogilvie Formation|26055||||||||||||||||No|37087||||||Within the Jerrys Plains Subgroup. See also Woodlands Hill Seam, Woodlands Hill Coal Member.|||||N||17-JAN-23
Woodlawn Volcanics|20516|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Fairy Group|26052|||Lochkovian|419|3.2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Wenlock||||||1500|NSW|Yes|30730||Felton E.A.||Bryan, J.H.|27-OCT-75|Age is indistinguishable from Ellenden Granite and leucogranite phase of Lockhart Igneous Complex, but younger than the tonalite phase of Lockhart Igneous Complex.|Flow banded, commonly amygdaloidal, porphyritic rhyolite; rare matrix-supported polymictic conglomerate; fine to coarse-grained, poorly sorted rhyolitic volcanic sandstone, tuffaceous siltstone and grey shale, uncommon siliceous ironstone.|acid volcanic rock|||N||17-JAN-23
Woods Gully Claystone Member|23249|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Ironbark Formation|33969|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|||Preston B.C., K.J.Brown|31-MAY-85|||This name revived by GSNSW 14-JUN-2012. Sydney Basin. Used in GSNSW seamless geology dataset 2021.|Claystone: light brown hard and laminated at top and green grey and fissile at base, ?tuffaceous, sharp contact at base|fine grained siliciclastic rock|||N||17-JAN-23
Woodsreef Melange|20530|Woodsreef Serpentinite|20531|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Early Cambrian|||||Early Cambrian|530||isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|41328|41328|||||Definition card held for Woodsreef Ophiolitic Melange. Crystallisation age: Cambrian. Emplacement age: Carboniferous.|Schistose, sheared and variously altered serpentinite, gabbro and dolerite that locally hosts plagiogranite, harzburgite, pyroxenite, basalt and sedimentary rock|metamorphosed ultramafic rock|metamorphosed basic igneous rock||Y||17-JAN-23
Woodton Formation|31412|Inglewood Formation|70488|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Sakmarian|290.5|2.8|isotopic, U/Pb-Pb/Pb ion probe|deposition|Asselian||||deposition||254|NSW|No|62095|62095|Roberts, J.|17-AUG-05|Brakel, A.||Originally reserved (and defined) by Lowe, S.P. for 1971 UNE BSc(Hons) thesis (30-AUG-1972) - for unit synonymous with Currabubula Fm. in part.  Name not used by Lowe and now re-reserved for different unit. Published in AJES 53(2) by Roberts et al (2006).|Laminated to massive, multicoloured, silty mudstone, fine to medium grained, beige, lithic sandstone (some with rip-up clasts), diamictite and conglomerate|siliciclastic sedimentary rock||extensional continental backarc|N||17-JAN-23
Woogaroo Subgroup|20540|||||Yes|Subgroup|Formal|Variation of published name|Fully described|Bundamba Group|2963|||Lower Jurassic||||deposition|Upper Triassic||||||480||No|36351|||||||Thin to thick bedded, fine to medium-grained, quartz-lithic and quartz sandstone, quartz-rich granule conglomerate, silty sandstone, siltstone, claystone; carbonaceous siltstone and claystone; minor laminites and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock|oceanic backarc|N||04-JUL-23
Woolomin Group|27097|Woolomin Beds|20564|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Upper Devonian||||deposition|Silurian|||||||NSW|Yes|43385|41328|Aitchison J.C., et al. In Lexicon||Walter, A.|27-FEB-91|Redefined in 2009. See RefID 65398 GSNSW Quarterly Notes 131.|Chert, jasper, slate, phyllite, basalt, minor sandstone.|non-carbonate chemical or biochemical sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Woolomol Limestone|20573|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|43427||||||||carbonate sedimentary rock|||N||17-JAN-23
Wooloo Limestone Member|41245|Wooloo Limestone|30677|||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Cabonne Group|21409|||Ordovician||||deposition|Ordovician||||||||No|50590||||||||carbonate sedimentary rock|||N||17-JAN-23
Woolooma Formation|20575|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Visean||||deposition|Visean||||||1100|NSW|Yes|32671|45088|Roberts J.|29-MAY-70|||See also the misspelt Wooloma Formation. Marine unit.|Medium to thinly bedded blue-grey siltstone and grey to brown mudstone with interbeds of lithic sandstone, minor tuff and limestone. Thick lithic sandstone is common at the top of the formation|siliciclastic sedimentary rock||forearc|N||17-JAN-23
Woomargama Granite|77049|Woomagarma Granite|27016|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Koetong Suite|9703|Gorstian|428.2|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Wenlock|428.6|2.2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69801||Blevin, P. (GSNSW)|10-JUL-12|||Spelling of place name corrected. Used in GSNSW seamless geology dataset 2021.|Nonmagnetic, bluish grey, two mica cordierite granite; coarse grained biotite muscovite granite; S-type, mostly equigranular but centre is porphyritic and parts of margins are fine grained; locally abundant enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Woombi Greenstone|27017|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Sandon Association|67995|||Mississippian|||||Upper Devonian||||||||No|41348||||||See also Woombi Greenstones. Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition)|Massive metabasalt, cleaved siliceous mudstone and fine greywacke (lithic wacke?), laminated quartzite horizons|metamorphosed basic igneous rock|metasedimentary siliciclastic rock||N||17-JAN-23
Woonona Coal|20607|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Illawarra Coal Measures|27802|||Permian||||deposition|Late Permian||||||||No|36042||||||||organic rich sedimentary rock|||N||17-JAN-23
Woorinen Formation|20618|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Holocene||||deposition|Chibanian||||||10.6|SA|No|70961|42966|||||Defined (Lawrence, 1966a; Firman, 1973). Deposition was initiated between 0.7Ma-0.4Ma based on cessation of Lake Bungunnia. Preceded by "The Featureless Sandplain" and now overlies this.|Unconsolidated red-brown medium to fine silty sand, red calcareous silty clay, sandy clay, clay pellet aggregates; forms extensive dune fields with subdued crests and flakes separated by swales and sand plains.|regolith|||N||17-JAN-23
Wootton beds|20622|Wootton Beds|20620|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||Visean||||deposition|Tournaisian||||||||No|36057|||||||Thin bedded brown - grey, barren mudstone and siltstone with interbeds of lithic sandstone (frequently turbiditic) and conglomerate in lower sections; upper parts with fossiliferous grey to brown mudstone, thinner bedded lithic sandstone and oolitic lime|siliciclastic sedimentary rock|||N||17-JAN-23
Worange Point Formation|20623|||||Yes|Formation, beds|Formal|Other new published name|Defined|Merrimbula Group|11713|||Famennian|354|||deposition|Frasnian|365|||||1100||No|43461||||||Age: 354-365 Ma stated in 2003 palaeomag paper, but age likely to be determined on fossils. Lack of phyllolepids suggests younger than Hervey Group placoderm fauna.|Interbedded brown to cream quartzofeldspathic sandstone and shale, passing up into purple sandstone; massive sandstone with mudrock|siliciclastic sedimentary rock|||N||17-JAN-23
Worobil Alkali Granite|32529|Worobil Microgranite|32405|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gulgong Suite|31452|Visean||||intrusion|Visean||||||||No|23043|23170|Cameron R.|22-JUN-98|||Dubbo 1:250 000 sheet area.|Leucocratic biotite fine- and coarse-grained alkali granite|acid intrusive rock|||Y|I-type|17-JAN-23
Woronora Coal Member|20630|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Eckersley Formation|5944|||Late Permian||||deposition|Late Permian||||||||No|29900||||||||organic rich sedimentary rock|||N||17-JAN-23
Wowagin Dacite Member|70457|||||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow|||inferred, overlying unit|eruption|Wenlock|||inferred, geological correlation|||270|NSW|No|64238||Scott, M. (GSNSW)|24-MAY-06|||For use in the GOULBURN 1:250K mapping project. Status downgraded by M. Scott (May/06) from original reserved name  Wowagin Volcanics. Within the Mount Fairy Group.|Grey to greenish grey, medium-grained, spherulitic, flow-banded porphyritic, rhyodacite to dacite lava.|acid volcanic rock|||N||17-JAN-23
Woy Woy south basalt|20642|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|40263||||||||basic volcanic rock|||N||17-JAN-23
Wrens Nest Trachyte|74577|Wrens Nest Volcanics|72308|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Campbells Group|3427|||Devonian||||eruption|Silurian|||||||NSW|No|64238||Sherwin, L. (GSNSW)|05-JUN-08|||Notified of name change by L. Sherwin (5 June 2008). PP. For use on Map sheet 8729; nearest town is Tuena.  To be pub: 2008 - GOULBURN 1:250K 2nd.ed. Trachytic volcanics interbedded with or intruded into Campbells Group. These rocks previously included in Box Ridge Volcanics.|Grey, fine-grained, aphyric to sparsely porphyritic quartz trachyte to rhyolite. Groundmass typically contains abundant microlites of aegirine and less abundant arfvedsonite which define a crude flow foliation.|intermediate volcanic rock|||N||17-JAN-23
Wroxley Lithic Sandstone Member|20654|Wroxley Sandstone Member|20656|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Dangarfield Formation|25714|||Mississippian||||deposition|Mississippian||||||62|NSW|No|35245|35245||||||Unfossiliferous crossbedded green lithic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wullwye Granodiorite|20663|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Wullwye Suite|31664|Lower Devonian||||intrusion|Late Silurian|415.9|5.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|33852|35109|||||Average Rb/Sr age: 415.5 ma. See also RefID 67060 p505.|Biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Wullwye Suite|31664|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian|||||Silurian||||||||No|42726||||||||acid intrusive rock|||Y||17-JAN-23
Wunghnu Group|20670|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Pleistocene|||||Late Miocene|||||||VIC|No|70961|42966|||||Included the Parilla Sand in 2006 (DPMAR06).|Regolith.|regolith|||N||17-JAN-23
Wuuluman Granite|20680|Wuuluman granite|20682|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Wuuluman Suite|67991|Visean||||intrusion|Visean|333.6|2.5|isotopic, U/Pb-Pb/Pb ion probe|||||No|43476||||||See also Lexicon and Wuuluman Dolerites.|Megacrystic quartz monzodiorite, locally granitic 3-5 mm. Increasing K, decreasing magnetite content; accessory biotite, sphene, muscovite, allanite; leucocratic aplite; greisen.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Wuuluman Suite|67991|Wuuluuman Suite|31454|||Yes|Group, Suite|Informal|Variation of published name|Described|||Bathurst Supersuite|31449||||||Mississippian||||||||No|||||||This name in GSNSW Master List June 2012. See also Wuuluman Plutonic Suite. Used in GSNSW seamless geology dataset 2021.|Monzogranite and granite|acid intrusive rock|||Y|I-type|17-JAN-23
Wyam Creek granite|80444|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Cunninyeuk granite suite|80441|Upper Devonian|||inferred, geological correlation||Upper Devonian|||inferred, geological correlation|||||No|70718||||||Informal name, interpreted from geophysics. In Swan Hill 1:250k sheet area.|Interpreted to be S-type granite , with metamorphic aureole.|acid intrusive rock|||Y|S-type|17-JAN-23
Wyanbene Limestone Member|20693|Wyanbene Limestone|20694|||Yes|Member, phase|Formal|Variation of published name|Defined|De Drack Formation|5292|||Ludlow||||deposition|Wenlock|||||||NSW|Yes|39028|40276|Owen M.||Russell, T.|14-SEP-82||Massive recrystallised sporite to biosporite, small areas of micrite, bedding not obvious.|carbonate sedimentary rock|||N||17-JAN-23
Wyandra Sandstone Member|20695|||||Yes|Member, phase|Formal|Resvd name published|Defined|Cadna-owie Formation|3284|||Barremian||||deposition|Barremian|||||3|30|QLD|Yes|33075|33075|Exon N.F., Senior B.R.|02-APR-74||01-MAY-74|Check States. Definitely in Qld and NSW. Historically considered a beach deposit; more recent work suggests it may well be an impact tsunami deposit formed by the Tookoonooka impact event to the NE of the project area (Bron, 2009). Aquifer.|Locally ferruginous, coarse, calcareous, fine-to medium grained quartzose sandstone,  with subangular quartz, feldspar and lithic fragments.Pebbly sandstone and conglomerate.  Locally with dark carbonaceous laminae.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Wyangala Granite|20699|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Hovells Suite|69895|Pridoli||||intrusion|Ludlow||||||||No|39331||||||Originally mentioned as a subsitute for the whole Wyangala Batholith. Also previously named Wyangala Adamellite. Intrudes Adaminaby Group, Swan Ponds Tonalite and Garland Granodiorite. Part of the Wyangala Batholith. Formerly of Wyangala Suite. Stated to be of Hovells Suite on GOULBURN 1:250K map sheet (2008).|Grey to cream or white, medium- to coarse-grained, generally foliated, equigranular to porphyritic, often megacrystic cordierite-muscovite-biotite granite. High K and Th with moderate to high U radioelement response.|acid intrusive rock|||Y|S-type|17-JAN-23
Wyangala Granite, Wyoming Granite, Briarlee Granite|42010|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1 million geological map, National Maps Project. Of the Wyangala Batholith.|Massive to protomylonitic, medium to coarse grained, porphyritic and equigranular muscovite+/-biotite soda granites and granodiorite; alkali granite and subaplitic sodic alkali granite|acid intrusive rock|||Y||17-JAN-23
Wyangala Supersuite|20701|||||Yes|Supergroup|Formal|Variation of published name|Defined|||||Devonian|||||Late Silurian||||||||No|41563||||||To be used on the new GOULBURN 1:250 000 sheet (2006) also.|Reduced, unfractionated, foliated S-type biotite granite, porphyritic granite, leucogranite; scattered xenoliths and mafic enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Wyangle Formation|24127|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Silurian||||deposition|Early Silurian|||||||NSW|No|36534|42313|K.Crook|16-APR-75||||Andesitic tuffs and lavas, quartz-poor lithic sandstone, conglomerate, cherty siltstone.|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wyarra Shale|40892|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Gnalta Group|7460|||Middle Cambrian||||deposition|Early Cambrian||||||50||No|22857|||||||Khaki, blue and purple slate and shale, minor sandstone and limestone.|fine grained siliciclastic rock|||N||17-JAN-23
Wyarra Shale, Wydjah Formation, Pincally Formation|40893|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Cambrian||||deposition|Cambrian||||||||No|||||||Informal grouping of units to be used on the New South Wales 1:1million geological map, National Maps Project.  Includes the Wyarra Shale, Wydjah Formation, Pincally Formation.|Marine origin red shale, siltstone, conglomerate, limestone and tuffaceous greywacke|siliciclastic sedimentary rock|||N||17-JAN-23
Wybeena Metamorphics|27625|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Sandon Association|67995|||Mississippian|||||Upper Devonian||||||||No|31694|||||||Siliceous schists and phyllite with interbedded metabasalt, chert and jasper|metasedimentary siliciclastic rock|metamorphosed basic igneous rock||N||17-JAN-23
Wyberba mass|32504|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Dundee Rhyodacite|5829|||Late Permian|||||Permian||||||||No|42378||||||Shown as Wybera/Tarban mass in 91/27302.|||||N||17-JAN-23
Wydjah Formation|34693|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Gnalta Group|7460|||Middle Cambrian||||deposition|Middle Cambrian||||||||No|22858||||||west of Mount Arrowsmith.|Polymictic pebble conglomerate; red-brown, medium- to very coarse-grained silicified quartz sandstone; phyllitic cleaved siltstone with rare, thin dolomitic beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Wyelba Member|40927|Wyelba Formation|20709|||Yes|Member, phase|Formal|Variation of published name|Defined|Glen Bower Formation|28309|||Wenlock|||inferred, geological correlation|deposition|Wenlock|||inferred, geological correlation|||156|NSW|No|50230||||||Previously included in Yass Formation. Originally of Moignard (1970) in an unpublished thesis.|Laminated tuffaceous mudstone, interbedded sandstone and mudstone, coarse-grained sandstone, cross-stratified to planar laminated.|siliciclastic sedimentary rock|||N||17-JAN-23
Wylies Flat Coal Member|20711|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Pinegrove Formation|15255|||Lopingian|||inferred|deposition|Lopingian|||inferred|||||No|29942||||||See also Wylies Flat Coal.|Inferior coal with tuff bands.|organic rich sedimentary rock|||N||17-JAN-23
Wylinga Member|30527|Wylinga Formation|20713|||Yes|Member, phase|Formal|Variation of published name|Defined|Dripstone Formation|30526|||Wenlock||||deposition|Wenlock||||||25||No|22857|23170|Scott M.|25-SEP-96|||Wellington &/or Euchareena 1:100 000 sheet area. Informally further subdivided into 'Wylinga Member - limestone' Smudy_l, in GSNSW seamless geology dataset 2021.|Felsic crystal-lithic sandstone, fossiliferous limestone.|siliciclastic sedimentary rock|||N||24-JUL-23
Wylora Quartz Gabbro|24589|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Devonian||||intrusion|Lower Devonian|||||||NSW|Yes|40132|40132|B.G.Jones|13-MAR-79|Russell, T.|18-JUN-82|||basic intrusive rock|||Y||17-JAN-23
Wyndham Sequence|36328|||||Yes|Formation, beds|Sequence stratigraphy|Variation of published name|Briefly described||||||||||||||||||No|23540|||||||||||N||17-JAN-23
Wynn Coal Member|27668|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Foybrook Formation|26561|||Late Permian||||deposition|Late Permian||||||||No|29942||||||Sydney Basin|Dull, and dull & bright finely interbanded coal, fine fusainous penny bands; carbonaceous shale with coaly lenses, grey siltstone with carbonaceous laminations|organic rich sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Wyoming Granite|35708|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Gooramma Suite|70027|Ludlow||||intrusion|Ludlow||||||||No|50231||Pogson D.|05-FEB-01|||BOOROWA 1:100 000 sheet area. Age: probable Late Silurian. Part of the Wyangala Batholith.|Pinkish-grey, coarse-grained, massive, equigranular (to occasionally porphyritic) leucocratic granite.|acid intrusive rock|||Y||17-JAN-23
Wyoming Limestone Member|26334|||||Yes|Member, phase|Formal|Resvd name published|Defined|Fossil Hill Limestone|6862|||Upper Ordovician||||deposition|Upper Ordovician||||||27|NSW|Yes|38219|38219|B.D.Webby|11-MAY-81|Russell, T.|12-FEB-82|Cliefden||carbonate sedimentary rock|||N||17-JAN-23
Wywurri Granite|35342|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Hovells Suite|69895|Pridoli||||intrusion|Ludlow||||||||No|50231||Johnston A.|15-MAR-00|||BOOROWA 1:100 000 sheet area. Part of the Wyangala Batholith.|Cream to light grey, medium- to coarse-grained, massive to mildly foliated, equigranular to occasionally pophyritic cordierite-muscovite-biotite granite with leucocratic, finer-grained. High K and U, mod.to low Th radioelement response|acid intrusive rock|||Y||17-JAN-23
Xmas Quartz Monzonite|32186|Xmas Quartz Monzodiorite|23272|||Yes|Formation, beds|Formal|Resvd name published|Described|||Xmas Suite|31665|Lower Devonian||||intrusion|Late Silurian||||||||No|22815|||||||Monzodiorite|acid intrusive rock|||Y||17-JAN-23
Xmas Suite|31665|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Consists of two members: Xmas Quartz Monzonite and Stringy Road Granodiorite.|Granite, Granodiorite, Monzonite|acid intrusive rock|||Y||17-JAN-23
Yabba Granite|20736|Yabba Adamellite|20735|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Yabba Suite|31667|Lower Devonian|411|3|isotopic, Rb/Sr|intrusion|Llandovery|428|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|35278||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G172. Now includes the Lockhart Granite, formerly G173. On previous maps, they had been separated by a fault which, when restored, produces one intrusion. Radiometric ages form Keay et al (1999).|Biotite-muscovite granite: weakly to strongly foliated; consists of quartz, perthitic K-feldspar, plagioclase, red-brown biotite and muscovite, with accessory cordierite and sillimanite; abundant metasedimentary enclaves; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Yabba Suite|31667|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Yackandandah Granite|20742|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lower Devonian|380|15||intrusion|Lower Devonian|392|7||||||No|37871||||||Age: 380+/-15Ma, 392+/-7Ma.  GSV Code: G177. Age and lithology updated from GSV data (HG, Dec 2005). Two phases of this granite sometimes informally referred to as the 'Yackandandah Granite porphyritic phase' and 'Yackandandah Granite equigranular phase'.  Now includes the Mudgeegonga Granite. Magnetic imagery show they are parts of the same concentrically zoned pluton. There are two phases: coarse-grained porphyritic and medium-grained equigranular.|Coarse grained strongly porphyritic granite with large feldspar and quartz phenocrysts set in a fine grained quartz, feldspar, biotite groundmass; medium-grained equigranular phase.|acid intrusive rock|||Y|I-type|17-JAN-23
Yadabal Lagoon Granite|82707|Yadabal Lagoon granite|76048|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Thalaka granite suite|80440|Aeronian|||inferred||Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021.|Interpreted S-type granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Yadabal Lagoon granite|76048|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Thalaka granite suite|80440|Late Silurian|421||inferred, intrusive relationship|intrusion|Ordovician|||inferred|||||No|66934||||||Of Thalaka Granite Suite. Deniniquin and Hay 1:250 000 maps sheet area. Informal unit based entirely on geophysics. Unit interpreted as S-type granite.|granite interpreted.|acid intrusive rock|||Y|S-type|17-JAN-23
Yadboro Conglomerate|20743|||||Yes|Formation, beds|Formal|Other new published name|Defined|Shoalhaven Group|16844|||Artinskian||||deposition|Sakmarian||||||180||No|43981|43981|||||Defined 1962.  Formerly mapped with the Talaterang Group.|Conglomerate with thin shale and sandstone interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Yagon Siltstone|20747|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Serpukhovian|330.6|4.6|isotopic, U/Pb-Pb/Pb ion probe|eruption|Visean|||inferred, biostratigraphic correlation|deposition||1100|NSW|No|32868|36057||||||Fossiliferous dark siltstone; minor interbeds of mudstone and fossiliferous sandstone. Upper portion has mudstone and volcanic beds|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Yagon Siltstone, Booti Booti Sandstone|42291|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Informal grouping of units to be used for New South Wales 1:1 million geological map, National Maps Project.|Fossiliferous siltstone, mudstone, sandstone, white siltstone and coal-rich, crossbedded sandstone; minor volcanic member|siliciclastic sedimentary rock|||N||17-JAN-23
Yahoo Peaks Composite Dome Member|77052|Yahoo Peaks Composite Dome|30520|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Dulladerry Volcanics|29509|||Givetian||||eruption|Givetian||||||||No|||Blevin, P. (GSNSW)|10-JUL-12|||Name updated by GSNSW. Wellington &/or Euchareena 1:100 000 sheet area. Published in GSNSW seamless geology.|Quartz-K-fedspar-phyric rhyolite, K-feldspar-phyric rhyolite, dacite.|acid volcanic rock|||N||26-SEP-23
Yalgatta Granodiorite|23277|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian||||||||No|22815||Ilsley D., Lewis P.|14-FEB-80|||BD as Yalgatta Granite in Chappell et al (1991), but formal name not intended.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Yalgo Rhyolite Member|20763|Babinda Volcanics|25702|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Baledmund Formation|954|||Lower Devonian||||eruption|Lower Devonian|||||||NSW|No|35287|42566||||||Discontinuous series of silicic lava flows - porphyritic, blue-grey, rhyolitic. Fine pyrite is prevalent.|acid volcanic rock|||N||17-JAN-23
Yalgogrin Granite|36151|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Koetong Suite|9703|Ludlow|428.5|2.3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Wenlock|430.9|2.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|60303||Meakin S. GSNSW  meakins@minerals.nsw.gov.au|05-JUN-01|||CARGELLIGO 1:250 000 map sheet area. Formerly "Bland Granite" (Chappell et al 1991) tog. with Ungarie Granite, but this name is not applicable as Bland Granite is a name that refers to a small diorite on FORBES map sheet area. NOTE: Incorrect uses of  the "Bland" prefix have occurred in the literature, e.g Bland Granite and Bland Diorite. Age: ~428.2Ma, 432.1+/-2.8Ma (SHRIMP).|Biotite-cordierite granite, grey, coarse- to medium-grained, porphyritic, locally megacrystic, biotit-rich microgranular encalves and abundant metasedimentary xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Yalmy Group|20777|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Llandovery||||deposition|Llandovery||||||2500|NSW|No|40126|42647|VandenBerg, A.H.M.|23-APR-80|||Murrindal area. Includes the Towanga Sandstone and Seldom Seen Formation.|Marine turbiditic sandstone, mudstone, mass-flow conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Yalwal Volcanics|20784|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Upper Devonian||||eruption|Givetian||||||||No|32671||||||Wrongly linked with Fiery Range Porphyry (obsolete unit from Tantangara 1:100k sheet area) in spreadsheet supplied to ASUD in 2011. Includes Grassy Gully Rhyolite Member dated at 384.5 +/- 4.4 Ma (U/Pb SHRIMP).|Intercalated silicic and mafic lavas and breccias, volcaniclastic and pyroclastic rocks, sandstone, siltstone, mudstone, pebble conglomerate.|acid volcanic rock|basic volcanic rock||N||17-JAN-23
Yamba Formation|20787|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Holocene||||deposition|Upper Pleistocene|||||||SA|No|44660|42966|||||Defined by Firman (1966, 1973). Hosts gypsum resources.|Friable pale grey gypsite, gypsiferous clay, grey pelletal gypsum-quartz aggregates, black sulphide-rich mud, ephemeral salt crusts of gypsum, halite, bischofite, thenardite, mirabilite|regolith|||N||17-JAN-23
Yambla Formation|81818|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian|||||Upper Devonian||||||||No|73457||Trigg, S. (GSNSW)|23-JAN-20|||Named for the Great Yambla Ridge. The nearest town is Gerogery. The Yambla Formation is named and described in a GSNSW report (Geological mapping in parts of the East Riverina Project area in 2018, S.J. Trigg) that is in the final stage of editing and should be in the GSNSW DIGS and available to the public in the first half of this year. Used in GSNSW seamless geology dataset 2021.|Cobble conglomerate, with mostly rounded metasandstone clasts and with abundant boulders locally at the base of the unit, passing up into a medium-grained quartz sandstone, with quartz pebbles locally.|medium-coarse grained siliciclastic rock|||N||24-JUL-23
Yammatree Granite|20793|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||Mishurley Creek Suite|82576|Lochkovian|417.9|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Pridoli|417.9|1.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|42726|22638|||||Formal name not intended by Chappell. Originally of Yammatree Suite. Now (2021) of Mishurley Creek Suite. S-type or I-type?|Massive monzogranite with aggregates of biotite.|acid intrusive rock|||Y||22-AUG-23
Yanawe Formation|40932|||||Yes|Formation, beds|Formal|Other new published name|Defined|Douro Group|5668|||Ludlow|||inferred, overlying unit|deposition|Wenlock|||inferred, underlying unit||30|800|NSW|No|50230|68592|||||Includes undifferentiated rocks also. In part previously upper Laidlaw Volcanics. In part previously lower Silverdale Formation.|Volcaniclastic sandstone, siltstone and mudstone, pebble-boulder conglomerate and breccia, siliceous volcanic mudstone, calcareous mudstone and lenses of fossiliferous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||07-SEP-23
Yancannia Formation|73418|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Warratta Group|73409|||Furongian|497|13|isotopic, U/Pb|deposition|Fortunian|||||||NSW|No|66623|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Thomson Orogen?|Weakly-cleaved slate and minor psammite, showing original bedding and facing in some outcrops. Originally mudstone, siltstone and fine-grained sandstone regionally metamorphosed to lower greenschist or prehnite-pumpellyite facies.|siliciclastic sedimentary rock|||N||17-JAN-23
Yancowinna Subgroup|20809|Yancowinna Beds|20807|||Yes|Subgroup|Formal|Variation of published name|Described|Torrowangee Group|18460|||Cryogenian||||deposition|Cryogenian|700|||||200||No|36733||||||South Australia equivalent is Yudnamutana Subgroup.|Diamictite, siltstone, sandstone, minor carbonate.|siliciclastic sedimentary rock|||N||17-JAN-23
Yandaminta Quartzite|20812|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Pimbilla Tank Group|73404|||Floian|||biozone||Floian|||biozone|||||No|35118||||||West of Mount Arrowsmith this unit is faulted against Cambrian formations and western Kara beds.|Quartzite, generally white, medium-grained and well-sorted, mostly massive; conglomerate; grey-green mudstones with carbonate concretions in the middle of the unit; fine-grained red sandstones grading into quartzite.|siliciclastic sedimentary rock|||N||17-JAN-23
Yandenberry Formation|76100|Yandenberry beds|35682|||Yes|Formation, beds|Formal|Variation of published name|Defined|Ponto Group|35621|||Cambrian||||deposition|Cambrian||||||||No|67208|66623|||||Unit in Ponto Group. Probably supersedes Yandenberry beds [15-SEP-2011]|Turbiditic, micaceous, metasandstone, metasiltstone and metamudstone (phyllite) and very rare felsic tuff horizons; metasandstone units make up about half of the type section.|metasedimentary siliciclastic rock|||N||17-JAN-23
Yandilla Volcanics|23286|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Silurian||||eruption|Silurian||||||||No|22638||Cooper I.|12-MAR-86|||Previously mapped as Jindalee Group. Used in the Mafic-Ultramafic Event Series dataset 2013, where stated to be Early Silurian, and also ~430 Ma.|High-K meta-andesite, metabasalt, metamorphosed tuffs|metamorphosed igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Yandyguinula Member|27260|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Captains Flat Formation|3563|||Late Silurian||||deposition|Late Silurian||||||60|NSW|No|48878|36413||||||Alternating thin beds of siltstone and shale.|fine grained siliciclastic rock|||N||17-JAN-23
Yangalla Formation|20820|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yancowinna Subgroup|20809|||Neoproterozoic||||deposition|Cryogenian||||||||No|30261|||||||Boulder beds, lenticular interbedded siltstone, sandstone; Bedded siltstone and sandstone, coarsening-upwards; the unit is rich in glacial clasts and erosional contacts occur throughout.|siliciclastic sedimentary rock|||N||17-JAN-23
Yanna Tank Formation|73399|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Permian||||deposition|Permian||||||||No|69001|66623|Gilmore, P. (GNSW)|25-JUN-07|||Used on the Koonenberry 1:500 000 map sheet. Correlated with Urana and Cape Jervis Formations. Contains glacial drop-stones and erratics; polished and striated quartzite boulders, and black manganiferous chert from ?Victoria. Glaciated Devonian pavement and monadnocks occur.|Poorly exposed, weakly consolidated, deeply weathered gritty sandstone, with occasional large isolated boulders. Drillholes have yielded fine-grained yellow sand, dark grey-maroon siltstone and claystone|siliciclastic sedimentary rock|||N||17-JAN-23
Yaouk Leucogranite|20830|Yaouk Granite|20829|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Shannons Flat Suite|31633|Late Silurian||||intrusion|Late Silurian||||||||No|45003|||||||Porphyritic coarse leucogranite, aplite, fine leucogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Yar Sandstone|20837|Yar Siltstone|20838|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Walters Range Group|24072|||Pragian||||deposition|Pragian||||||||No|41395||||||Age: <411.2Ma. Thickness: >520m. Within the Cobar Supergroup.|Planar laminated and cross-bedded, medium-grained quartz-rich arenite. On CARGELLIGO - sandstone, pebbly sandstone and a minor conglomerate sequence of 4 unnamed units.|siliciclastic sedimentary rock|||N||11-SEP-23
Yard Coal|20839|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|39292||||||This Formation was downgraded to the informal Yard coal seam instead. Original name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Coal with minor bands [of what?].|organic rich sedimentary rock|||N||17-JAN-23
Yard coal seam|70042|Yard Coal|20839|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Lambton Formation|10113|||Late Permian||||deposition|Late Permian||||||||No|22857||||||||organic rich sedimentary rock|||N||17-JAN-23
Yarnel Volcanics|33420|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Ootha Group|14623|||Lower Devonian||||eruption|Late Silurian||||||400||No|50554||Sherwin L.|27-APR-99|||Forbes 1:250 000 sheet area.  Previously of the Ootha Subgroup, now upgraded to Ootha Group. Used in GSNSW seamless geology dataset 2021.|Rhyolitic tuff, volcaniclastic sandstone.||||N||24-JUL-23
Yarra Granite|20859|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Whick Whack Suite|69869|Pridoli||||intrusion|Ludlow||||||||No|42027||||||Of the Wyangala Batholith. See also the informal Yarra granite.|Grey to pink foliated to protomylonitic porphyritic biotite granite; minor dolerite, quartz syenite|acid intrusive rock|||Y||17-JAN-23
Yarra Yarra Creek Group|29299|||||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Emsian||||deposition|Lochkovian||||||1700||No|35287||||||Narromine, Nymagee, Forbes 1:250 000 sheet areas.|Thick bedded, planar to cross stratified, medium- to coarse-grained, quartz-lithic to quartzose sandstone and pebble to cobble conglomerate; thinly bedded or ripple cross laminated, fine-grained quartz sandstone, siltstone, claystone, minor algal limesto|siliciclastic sedimentary rock||oceanic backarc|N||17-JAN-23
Yarrabandai Formation|20864|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Derriwong Group|5403|||Lochkovian||||deposition|Lochkovian||||||900|NSW|Yes|36066|39660|Sherwin L, Foldvary G.|03-MAR-80|Sherwin, L.|18-APR-80||Fine to medium-grained, flaggy, planar-bedded arenite; contains brachiopods, trilobites, tentaculites|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Yarrabin Monzogranite|77017|Yarrabin Adamellite|27630|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Bullenbalong Suite|2895|Silurian||||intrusion|Silurian||||||||No|||Blevin, P. (GSNSW)|27-JUN-12|||Name updated to meet IUGS standards. Used in GSNSW seamless geology dataset 2021.|Fine- to medium-grained equigranular biotite monzogranite; quartz as polygonal aggregates, K-feldspar as microcline perthite, secondary muscovite aggregates, sporadic inclusions|acid intrusive rock|||Y|S-type|17-JAN-23
Yarrahapinni Monzogranite|76974|Yarrahapinni Adamellite|20874|||Yes|Formation, beds|Formal|Variation of published name|Described|||Carrai Supersuite|82123|Upper Triassic|228.4|1.7|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Upper Triassic|228.4|1.7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69639||Blevin, P. (GSNSW)|26-JUN-12|||Name updated to meet IUGS standards. previously of Round Mountain Supersuite. Of Carrai Supersuite in 71628,  Bryant, 2017. A compendium of granites of the southern New England Orogen, eastern Australia. GS2017/0408.|White to pink, fine- to medium-grained, equigranular to weakly porphyritic, biotite leucomonzogranite with minor hornblende-biotite leucomonzogranite; contains small pods of pegmatite; intruded by felsic dyke swarms and veins.|acid intrusive rock|||Y|I-type|27-AUG-23
Yarrahapinni Suite|73986|||||Yes|Group, Suite|Informal|Resvd name published|Briefly described|||Round Mountain Supersuite|73982||||||||||||||No|71628||Champion, D., Blevin, P. and Bultitude, R.J.|22-NOV-07|||Ref: Champion, Blevin and Bultitude, pers.comm., Nov. 2007.|||||Y||27-AUG-23
Yarralumba Ignimbrite Member|39264|Yarralumba|36748|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Serpukhovian|||inferred|eruption|Serpukhovian|||inferred||||NSW|Yes|50613|50613|Roberts J.|15-JAN-02|Taylor, G., Neef, G.|24-SEP-03|Originally reserved as Yarralumba.  Synonymous with Iventure Ignimbrite Member (Geeve 1995).  Volcanic member of the Gunnan package (informal grouping of stratigraphically recognisable distinctive, mappable units).|Pink, red or purple, unwelded to welded ignimbrite with coarse grained quartz, plagioclase, K-feldspar, opaque minerals and pumice fragments. Shards generally slender, moderately stratified. Groundmass micropoikilitic, spherulitic or chloritic/zeolitic.|acid volcanic rock|||N||17-JAN-23
Yarralumba Rhyolite|77322|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Willuri Formation|39257|||Stephanian||||eruption|Namurian||||||||No|68005||||||Is this a replacement of Yarralumba Ignimbrite Member (Unit no. 39264)? Or a misspelling?|Beige, pink or grey, rhyolitic ignimbrite, agglomerate, conglomerate, coarse resedimented rhyolitic sandstone and minor rhyolite flows.|acid volcanic rock|||N||17-JAN-23
Yarralumla Formation|20879|||||Yes|Formation, beds|Formal|Other new published name|Defined|Douro Group|5668|Laidlaw Volcanic Suite|10023|Lochkovian|417|8|inferred, intrusive relationship|metamorphism|Ludlow|||biozone|deposition|100|300|ACT|Yes|43385|42820|Abell, R.S. (after Opik 1958)|29-OCT-90|||BMR Bulletin 233. Approved by A. Waltho 17-MAY-1990? Included in the Laidlaw Volcanic Suite for stratigraphic relations with Deakin Volcanics. Geol Survey NSW has included it within the Douro Group (Yass area). Formerly included in 'Red Hill Group' of Opik.|Calcareous and tuffaceous mudstone and siltstone with minor limestone, calc-silicate hornfels and quartz sandstone|fine grained siliciclastic rock|||N||17-JAN-23
Yarramanbully Limestone Member|25666|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Devonian||||deposition|Devonian||||||||No|32671||||||||carbonate sedimentary rock|||N||17-JAN-23
Yarramundi Andesite Member|36830|Yarramundi Andesite|35764|||Yes|Member, phase|Formal|Resvd name published|Defined|Emmaville Volcanics|6143|||Late Permian||||eruption|Permian||||||||No|23859|23859|||||Tyope Locality: 390000EE, 6745500N||intermediate volcanic rock|||N||17-JAN-23
Yarrangobilly Limestone|20888|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Late Silurian||||deposition|Late Silurian||||||450||No|60086||||||Considered to overlie 'Goobarragandra Porphyry' [now Goobarragandra Volcanics] by Adamson (in Booker, Rayner, Hall et al., 1960); presence of numerous thrust faults makes this questionable [Goulburn 1:250k notes, 2012].|Massive limestone.|carbonate sedimentary rock|||N||17-JAN-23
Yarranjerry Granite|79381|||||Yes|Formation, beds|Informal|Resvd name published|Described|||||Devonian||||intrusion|Devonian||||||||No|70777||Campbell, L.M. (GSNSW)|02-MAR-16|||Map Sheet = Barmedman 8329. Nearest Town = Mirrool. Grey, medium- to coarse-grained, equigranular to porphyritic, quartz-feldspar-biotite granite. Contains xenoliths and biotite-rich enclaves. To be published = In a Quarterly Note of the Geological Survey of New South Wales.|Grey, medium- to coarse-grained, equigranular to porphyritic, quartz-feldspar-biotite granite. Contains xenoliths and biotite-rich enclaves.|acid intrusive rock|||Y||17-JAN-23
Yarrari Pyroclastic Member|40760|Yarrari|23295|||Yes|Member, phase|Formal|Resvd name published|Defined|Willuri Formation|39257|||Kasimovian|307.8|3.7|isotopic, U/Pb-Pb/Pb ion probe|deposition|Kasimovian|307.8|3.7|isotopic, U/Pb-Pb/Pb ion probe||20|310|NSW|Yes|50613|50613|Roberts, J.|19-DEC-03|NSW SNSC|07-APR-04|See also Yarrari Hill trachyte and Yarrari Ignimbrite Member. Volcanic member of the Tulcumba package (informal) - see Comment for Willuri Formation. See RefID 65902 for source of isotopic age (U/Pb SHRIMP using AS3 standard).|Crystal-rich, dacitic pyroclastic with phenocrysts of quartz, plagioclase, K-feldspar, and biotite as well as rounded pebbles of ignimbrite, rhyolite lava, pumice fragments, coarse shards and bubbles. The groundmass is glassy, chloritic or pumiceous.|acid intrusive rock|||N||17-JAN-23
Yarras Complex|34001|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Permian||||intrusion|Cambrian||||||||No|22571||||||Birpai terrane. 377 +/- 8 Ma trondhjemite sample. See also informal Yarras serpentinite.|Micro-trondhjemite, diorite, quartz diorite, gabbro|intermediate intrusive rock|basic intrusive rock||N||17-JAN-23
Yarrimbah Formation|33692|Yarrimbah Chert Member|24640|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Floian|||inferred, biostratigraphic correlation|deposition|Tremadocian|||inferred, biostratigraphic correlation|deposition||600|NSW|No|24417||Raymond, O.L.|27-SEP-99|||Formerly Yarrimbah Chert Member (see also misspelling Yarimbah Chert Member). Defined in Forbes Explanatory Notes (2000).|Consists of volcanic conglomerate, coarse-grained volcanic sandstone and sedimentary units.|siliciclastic sedimentary rock|igneous volcanic rock|island arc|N||17-JAN-23
Yarrimie Formation|20896|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Tamworth Group|17757|||Frasnian||||deposition|Eifelian||||||1500|NSW|No|43399|43400|||||Defined 1961.|Argillite, tuff, chert, siliceous siltstone, limestone, arenite, pebble conglomerate and mudstone with interbedded lithic sandstone and conglomerate lenses|fine grained siliciclastic rock|carbonate sedimentary rock|island arc|N||17-JAN-23
Yarrowyck Granodiorite|20898|||||Yes|Formation, beds|Formal|Other new published name|Described|||Uralla Supersuite|67894|Lower Triassic|249|3||intrusion|Lopingian|254.9|1.3||||||No|30789||||||Source: DMR NAND04 Nandewar Geology Integration and Upgrade project 18 Nov 2003. Within the Uralla Supersuite.|Equigranular, medium grained hornblende - biotite granodiorite and granite with undifferentiated felsic dykes and stocks in places.|acid intrusive rock|||Y|I-type|22-AUG-23
Yarrunga Coal|82708|Yarrunga Coal Measures|20901|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Shoalhaven Group|16844|||Wuchiapingian|||||Sakmarian||||||||No|||||||Used in GSNSW seamless geology dataset 2021.|Dark grey micaceous carbonaceous siltstone, dark grey to brown carbonaceous shale, medium-grained quartz sandstone with siliceous and carbonaceous cement, hard lustrous coal (5 seams), bituminous with minor shale interbeds.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Yarunga Coal|77613|Yarrunga Coal Measures|20901|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|Shoalhaven Group|16844|||Cisuralian||||deposition|Cisuralian||||||||No|||Greenfield, J. (GSNSW)|14-JUN-12||||Dark grey micaceous carbonaceous siltstone, dark grey to brown carbonaceous shale, medium-grained quartz sandstone with siliceous and carbonaceous cement, hard lustrous coal (5 seams), bituminous with minor shale interbeds|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Yarwood Siltstone Member|20902|Lower Trilobite Bed|31221|||Yes|Member, phase|Formal|Other new published name|Defined|Black Bog Shale|1776|||Ludlow|||inferred, biostratigraphic correlation|deposition|Ludlow|||inferred, biostratigraphic correlation||5|33.5|NSW|No|31852|68592|||||Formerly known as the 'Lower Trilobite Zone' (Mitchell, 1886),  "Lower Trilobite bed".|Fossiliferous calcareous mudstone, shale, siltstone; rare pods of micritic limestone.|fine grained siliciclastic rock|||N||17-JAN-23
Yass Formation|20908|Yass Subgroup|20917|||Yes|Formation, beds|Formal|Variation of published name|Defined|Douro Group|5668|Laidlaw Volcanic Suite|10023|Ludlow||||deposition|Wenlock||||||320|NSW|No|43479|68592|||||See also Yass Beds of Jenkins (1878), Yass Member, Yass Group, Yass Sub-Group. Now (since 1979) Yass Formation.|Upward coarsening quartzose to quartzofeldspathic sandstone and laminated mudstone (some calcareous), siltstone and shale; fossiliferous limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yathella Serpentinite|23300|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ordovician|||||Ordovician||||||2||No|43441||Sherwin L.|13-AUG-93|||Narromine 1:250 000 sheet.|Chlorite with minor antigorite and magnetite.|metamorphosed ultramafic rock|||N||17-JAN-23
Yathong Formation|20920|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Mulga Downs Group|26063|||Upper Devonian||||deposition|Upper Devonian||||||||No|42467||||||Used in GSNSW seamless geology dataset 2021.|Siltstone. Quartz clasts. Medium–thick planar bedded unit, with well developed cross-bedding.||||N||21-JUL-23
Yegi Conglomerate|38118|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bootheragandra Group|42361|||Lower Devonian||||deposition|Silurian|||||||NSW|Yes|61964||Meakin, S.|11-APR-03|||See UNIT DEFINITION. Together with Boothumble Formation, forms a transgressive sequence of basal synrift coarse, basement-derived alluvial fan clastics. Age: <418.7Ma.|Lithic quartz sandstone and matrix-supported cobble conglomerate with metasedimentary and vein quartz clasts. Alluvial fan clastics.|siliciclastic sedimentary rock|||N||17-JAN-23
Yellow Creek Granite|81809|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Pridoli|||inferred||Pridoli|422.9|2.4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|||Eastlake, M. (GSNSW)|21-JAN-20|||Named for 'Yellow Creek', which flows SW of the Hume Highway into northern Hume Reservoir; NE of Albury. Closest town is Bowna, south of Mullengandra Creek, NSW. Yellow Creek Granite crops out either side of the Hume Highway, north of Lake Hume, NSW. The unit is expected to be published in the Stratigraphic Unit Tables of the Geological Survey of New South Wales during 2020. Used in GSNSW seamless geology dataset 2021, 2023.|medium-grained, sub-equigranular, biotite-granite with sub-equal modal amounts of quartz, K-feldspar and plagioclase. Plagioclase is sericitically altered and K-feldspar is brown-clay altered. Biotite (5-7%) shows variable chlorite alteration.|acid intrusive rock|||Y|I-type|06-SEP-23
Yellow Gap Microleucomonzogranite|82539|Yellow Gap Micromonzogranite|73976|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Kingsgate Supersuite|82127|Middle Triassic|||inferred||Late Permian|||inferred|||||No|71628||||||Used in GSNSW seamless geology dataset 2021 and 2017 publication. Undated but all dated units in Kingsgate Supersuite are Late Permian to Early Triassic.|Fine-grained, equigranular, biotite K-feldspar-rich leucomonzogranite, rarely leucosyenogranite. I-type.|acid intrusive rock|||Y|I-type|19-OCT-23
Yellow Gully Leucosyenogranite|82709|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Triassic|||inferred||Lower Triassic|||inferred|||||No|71628||||||Used in 2017. Not used in GSNSW seamless geology dataset 2021, which uses Yellow Gully Syenogranite.|Medium- to coarse-grained biotite syenogranite with ferromagnesian-free and granophyric variants. I-type.|acid intrusive rock|||Y|I-type|27-AUG-23
Yellow Mountain Granite|20939|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lochkovian||||intrusion|Pridoli|420.6|2.8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|34449|||||||Foliated, medium-grained, equigranular and porphyritic biotite granite; mylonite zones common. associated, scattered porphyritic biotite micromonzogranite dykes intrude the granite margins.|acid intrusive rock|||Y|I-type|10-SEP-23
Yellowmans Creek Formation|30041|Yellowmans Creek Beds|20941|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kandos Group|29513|||Lochkovian||||deposition|Lochkovian||||||600||No|43188|23170|||||Reserved as Yellowmans Formation in 1978 but DESC as Yellowmans Creek Beds 91/27303 p202. See also Yellowman's Creek Beds & beds.|Shale, mudstone, arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Yennora Granite|30523|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Nallawa Suite|36469|Emsian||||intrusion|Lochkovian||||||||No|23043||Scott M., Wyborn D.|25-SEP-96|||Peak Hill & Wellington 1:100 000 sheet areas. Yeoval Batholith. Description provided to Central Register 11May98. Previously considered part of Yeoval Suite.|Pink to red fine- to medium-grained hornblende biotite granite|acid intrusive rock|||Y||17-JAN-23
Yeo Yeo Rhyodacite Member|26246|||||Yes|Member, phase|Formal|Resvd name published|Defined|Frampton Volcanics|6881|||Late Silurian||||eruption|Silurian|||||||NSW|Yes|35608|35609|Fitzpatrick K. after B.L. Schmidt||Hawke, J.|20-FEB-79|||acid volcanic rock|||N||17-JAN-23
Yeoval Complex|30531|Yeoval Granite Complex|33878|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||Yeoval Suite|31486|Eifelian|397|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Lochkovian|399|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|50590||Scott M.|25-SEP-96|||Wellington and/or Euchareena 1:100 000 sheet area. Published as Yeoval Granite Complex in Narromine 1:250 000 sheet area.|Pink microgranite, biotite-ferrohastingsite granite, red biotite microgranite|acid intrusive rock|||Y||17-JAN-23
Yeoval Suite|31486|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian|||||Lower Devonian||||||||No|42726|||||||Includes granite.|acid intrusive rock|||Y||17-JAN-23
Yerna Granite|23307|Gladstone Granite|7308|||Yes|Formation, beds|Formal|Resvd name published|Described|Narraburra Complex|69150|Gilmore Hill Suite|69147|Famennian||||intrusion|Famennian||||||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes.  Age and parentage deduced from Wormald et al, 2004, AJES, 51, p372.|Biotite granite|acid intrusive rock|||Y||17-JAN-23
Yessabah Limestone|25672|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Macleay Group|10958|||Artinskian||||deposition|Artinskian|||||||NSW|No|43385|34293|||||Defined as Devonian in 1969. Subsequently considered to be Permian.|Bioclastic crinoidal limestone and calcareous mudstone.|carbonate sedimentary rock||extensional continental backarc|N||17-JAN-23
Yewrangara Granite|20979|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Yewrangara Suite|31670|Emsian||||intrusion|Emsian||||||||No|42726||Chappell et al. , Pogson D.|11-NOV-99|||Formal name not intended in Chappell et al (1991).  Formalized on CROOKWELL 1:100 000 sheet (2000). No geochron, but GSNSW shows this unit as Early Devonian and another unit in the Suite has U-Pb age of 398.00+/-6.00 Ma.|Cream to creamy-grey, medium- to occasionally coarse-grained, generally massive, equigranular to weakly porphyritic hornblende-biotite granite. Contains a sub-unit of mottle black/cream medium-grained, equigran., biotite graniite|acid intrusive rock|||Y|A-type|06-SEP-23
Yewrangara Suite|31670|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Devonian||||intrusion|Devonian||||||||No|42726||||||Formal name not intended originally. No geochron, but GSNSW shows this unit as Early Devonian and another unit in the Suite has U-Pb age of 398.00+/-6.00 Ma.|Suite of biotite granites, biotite leucogranite and microgranite.|acid intrusive rock|||Y|A-type|06-SEP-23
Yiddah Formation|23308|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Ootha Group|14623|||Lochkovian||||deposition|Ludlow|425.9|3.7|isotopic|||||No|22638||Warren A., Gilligan L., Raphael N.|22-NOV-93|||Cootamundra 1:250 000 notes, Forbes 1:250 000 sheet area. Formerly included in Derriwong Group. Probably equivalent to the Combaning Formation.|Siltstone, arenite, minor conglomerate and felsic volcanic rocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Yithan Porphyry|79854|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lochkovian|||||Lochkovian||||||||No|||Trigg, S. (GSNSW)|13-JUN-17|||Late stage porphyry from the Ardlethan tin mine area. Previously known as the 'Mine porphyry' and the 'Cassiterite porphyry'. Used in GSNSW seamless geology dataset 2021.|Intrusive porphyritic rock with angular to subhedral quartz phenocrysts. Other phenocrysts are replaced by chlorite, sericite and minor Ti-bearing minerals. The groundmass is a mosaic of equigranular quartz and feldspar and altered (?)biotite.||||Y||21-JUL-23
Youdales Hut Formation|77056|Youdale Formation|21015|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Carboniferous||||deposition|Carboniferous||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||See previous name for description. Originally considered Permian age, but more recently shown as mid-Carboniferous. Occurs within an unnamed formation 'Clp' on the Tamworth_Hastings 1:250K metallogenic map. Lately and separately shown in AJES 42(6) pp612-613 Figure 2. Published in GSNSW seamless geology.|Mudstone, lithic sandstone, diamictite|siliciclastic sedimentary rock||forearc|N||26-SEP-23
Young Batholith - igneous rocks 82921|82921|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Young Batholith units', Suy. Used in GA Solid Geology layer.|Unspecified igneous intrusions, dominantly granite.|acid intrusive rock|||Y||17-JAN-23
Young Granodiorite|21021|Young Granite|21020|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||Young Suite|31669|Wenlock||||intrusion|Llandovery|428.8|4.3|isotopic, U/Pb-Pb/Pb ion probe||||NSW|No|29449|22638|||||Formerly considered part of Wagga Batholith. 417 +/- 6 Ma on biotite. Now part of the Young Batholith.Previously included in the Cowra Granodiorite. Parts of the unit formerly included in Burrinjuck Granite Complex. Intrudes Douro Group and Goobarragandra Volcanics. Probably intrudes the Canowindra Volcanics and may be intruded by Broula Granite. See also RefID 67060 p505.|Medium- to coarse-grained, equigranular to sometimes porphyritic, biotite (+/- muscovite +/- cordierite) granodiorite and granite, locally abundant biotite-rich enclaves; minor aplite and rhyolite dykes|acid intrusive rock|||Y|S-type|22-AUG-23
Young Suite|31669|||||Yes|Group, Suite|Formal|Other new published name|Defined|||Bullenbalong Supersuite|2897|Late Silurian|||||Late Silurian||||||||No|42726|||||||Cream to grey, medium- to coarse-grained biotite granite and granodiorite.|acid intrusive rock|||Y||17-JAN-23
Young Wallsend Coal|21022|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Lambton Subgroup|10115|||Lopingian||||deposition|Lopingian||||||||No|39292||||||This Formation was downgraded to the informal Young Wallsend coal seam instead. The Young Wallsend Coal/seam is said to be the combination of Nobbys and Dudley Coal/seams.[?which are distinguished to the south and west?]. Original name reinstated ~2015. Updated from GSNSW seamless geology dataset 2021.|Coal with minor bands [of what?].|organic rich sedimentary rock|||N||17-JAN-23
Young Wallsend coal seam|70041|Young Wallsend Coal|21022|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Lambton Formation|10113|||Late Permian||||deposition|Late Permian||||||||No|22857||||||Informal unit. The Young Wallsend Coal/seam is said to be the combination of Nobbys and Dudley Coal/seams.[???]||organic rich sedimentary rock|||N||17-JAN-23
Yowahro Formation|21033|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Euriowie Subgroup|6382|||Neoproterozoic||||deposition|Neoproterozoic||||||||No|30261|||||||Calcareous sandstone, finely laminated; siltstone and sandstone; silty to sandy limestone grading into laminated siltstone with minor limestone; thin, calcareous sandy interbeds common.|carbonate sedimentary rock|||N||17-JAN-23
Yuendoo Rhyolite Member|37904|Yuendoo Rhyolite|37295|||Yes|Member, phase|Formal|Variation of published name|Defined|Caroda Formation|3651|||Visean||||eruption|Visean||||||20|NSW|Yes|||Roberts, J.|02-FEB-96|Sutherland, F.L.|22-JAN-03|See Yuendoo Rhyolite and Yuendoo Andesite Tuff Member. Published in GSNSW seamless geology. Lith desc from original definition 2003.|Pale grey, poor- to non-welded ignimbrite containing feldspar, and fine chloritised and ferruginised volcanic rocks and pumice fragments.|acid volcanic rock|||N||26-SEP-23
Yugilbar Gabbro Phase|82426|Yugilbar Gabbro|82425|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Dumbudgery Creek Complex|82419|Late Permian|||inferred||Late Permian|255|1|inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021, 2023. Originally said to be Late Permian to Early Triassic (as Yugilbar Gabbro). GSNSW has now assigned a Middle Triassic age. The age of this unit is poorly constrained but likely to be older than the Permian Mount Carnham Granodiorite Phase. Parent unit Dumbudgery Creek Complex has been dated at 255+/-1 Ma U-Pb SHRIMP.|Composite unit of texturally heterogeneous coarse-grained (gabbros to quartz diorite) to fine-grained (basalt, basaltic andesite) mafic igneous rocks.|basic igneous rock|intermediate igneous rock||Y|I-type|19-OCT-23
Yurammie Granodiorite|23319|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Candelo Suite|30477|Lower Devonian||||intrusion|Late Silurian||||||||No|22815||Chappell B.W., Lewis P.|27-OCT-75|||Card. BD as Yurammie Granite in Chappell et al (1991), but formal name not intended.|Hornblende-biotite granodiorite|acid intrusive rock|||Y||17-JAN-23
Yuranigh Limestone Member|31726|Yuranigh Limestone|29515|||Yes|Member, phase|Formal|Resvd name published|Defined|Fairbridge Volcanics|25904|||Upper Ordovician||||deposition|Upper Ordovician||||||180|NSW|No|43782|23214|||||Bathurst 1:250 000 sheet area Type Section - GR 675300 6332800 to GR 674950 66332800.|Massive and bedded limestone, calcareous siltstone and lithic sandstone and includes an interbedded trachyandesite flow.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Zanci Unit|21076|Zanci unit|21077|||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described||||||||||||||||||No|29643|||||||||||N||17-JAN-23
Zero porphyry|83267|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Two-Thirty intrusive complex|83259|||Llandovery|438.8|4.4|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation|Llandovery|||inferred|magmatic crystallisation||||No|73287||||||Informal, prospect scale intrusive rocks at the Two-Thirty Prospect, Junee-Narromine volcanic belt, Macquarie Arc, Lachlan Orogen. Post-mineralisation porphyry, also coeval with dated molybdenite in Two-Thirty breccia. 455.5+/-4.4 Ma U-Pb zircon age interpreted as inherited from Goonumbla Volcanics.|Variable from aphanitic to crystal crowded monzonite, typically with a gradational contact, highly variable alteration.|intermediate intrusive rock|||Y||17-JAN-23
aeolian lunette|77074|lunette dunes 72955|72955|||Yes|Formation, beds|Unnamed|Unnamed published|Reserved||||||||||||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Unnamed regolith unit.|Red-brown to light brown, silty bi-modal quartz sand, sporadically clayey; locally capped by off-white to beige mobile quartz sand. Regolithic carbonate accumulations at depth, including rhizolith development|regolith|||N||17-JAN-23
alkali basalt 82968|82968|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. At Mount Brown. Approximately 25 km west of Kyogle. Location from Jaques 2008. Alkali basalt sill. Mesozoic inferred age from Jaques (2008). See also other refs: Ferguson et al. 1979 ?RefID 46920?; Ferguson 1980 RefID 36449.|Alkali basalt|basic volcanic rock|||N||17-JAN-23
alkali basalt 82969|82969|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Approximately 25 km WSW of Gloucester. Location from Jaques 2008. Alkali basalt pipe. Mesozoic inferred age from Jaques (2008). See also other refs: Ferguson et al. 1979 ?RefID 46920?; Ferguson 1980 RefID 36449.|Alkali basalt.|basic volcanic rock|||Y||17-JAN-23
alkali dolerite 78245|78245|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Alkali dolerite.|basic intrusive rock|||Y||17-JAN-23
alkali gabbro 78246|78246|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Sills and stocks.|Alkali gabbro sills and stocks.|basic intrusive rock|||Y||17-JAN-23
alkali gabbro 78251|78251|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Sills and stocks.|Alkali gabbro sills and stocks.|basic intrusive rock|||Y||17-JAN-23
alkaline dykes and plugs 83885|83885|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ediacaran|||inferred||Ediacaran|||inferred|||||No|||M. Buddee|12-APR-23|||Unnamed units from NSW seamless geology to be used in the alkaline rocks atlas. Described as 'Ungrouped Neoproterozoic units - alkaline dykes and plugs' NPuu_s, in GS NSW Seamless geology.To be used in GA alkaline rocks data compilation and other products.|Alkaline dolerite dykes and plugs.|basic intrusive rock|||Y||25-MAY-23
alluvial gravel deposits|77078|gravel 75810|75810|||Yes|Formation, beds|Unnamed|Unnamed published|Reserved|||||Cenozoic||||deposition|Cenozoic||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Unnamed regolith unit|Unconsolidated alluvial gravel, sand, silt and clay with variable humic content; gravels commonly clast supported|regolith|||N||17-JAN-23
alluvial sand and gravel|77077|gravel, sand 75808|75808|||Yes|Formation, beds|Unnamed|Unnamed published|Reserved|||||Quaternary||||deposition|Quaternary||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Unnamed regolith unit.|Unconsolidated alluvial quartzose sand and polymictic gravel, silcrete and quartz- and iron-cemented sandstone|regolith|||N||17-JAN-23
alluvium 38485|38485|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Holocene||||deposition|Holocene||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project. Map Symbol: Qa.  May have been previously mapped as Qy (Qyt); some Qcc and Czca.|Channel and flood plain alluvium; gravel, sand, silt, clay; may be locally calcreted|regolith|||N||17-JAN-23
amphibolite 78259|78259|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Intrusive?|Amphibolite.|metamorphosed basic igneous rock|||U||17-JAN-23
amphibolite 78260|78260|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Intrusive?|Amphibolite.|metamorphosed basic igneous rock|||U||17-JAN-23
amphibolite 78291|78291|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|1674|8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named amphibolite (sample 9618006) from Clevedale Migmatite and Thorndale Composite Gneiss in Clevedale region, ~10 km southeast of Broken Hill (location: Lat 31.976905, Long 141.568768). Minimum age of mafic dyke emplacement although dykes probably intruded during high-grade metamorphism therefore magmatic and possible metamorphic overprinting ages are likely to be very similar; also consistent with intruded metasedimentary country rocks dated ~1700¿1710 Ma; bimodal 1690 +/-5 Ma felsic metavolcanics: Page & Laing (1992)|Amphibolite|metamorphosed basic igneous rock|||Y||17-JAN-23
amphibolite 78293|78293|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1686|13|isotopic, U/Pb-Pb/Pb ion probe||Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named amphibolite (sample 9618007) from Clevedale Migmatite and Thorndale Composite Gneiss in Clevedale region, ~10 km southeast of Broken Hill (location: Lat 31.961127, Long 141.576448). Minimum age of mafic dyke emplacement although dykes probably intruded during high-grade metamorphism therefore magmatic and possible metamorphic overprinting ages are likely to be very similar; also consistent with intruded metasedimentary country rocks dated ~1700¿1710 Ma; bimodal 1690+/- 5 Ma felsic metavolcanics: Page & Laing (1992), Gibson & Nutman (2004).|Amphibolite|metamorphosed basic igneous rock|||Y||17-JAN-23
amphibolite 78295|78295|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|1691|9|isotopic, U/Pb-Pb/Pb ion probe||Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named amphibolite (sample 9618008) from Clevedale Migmatite and Thorndale Composite Gneiss in Clevedale region, ~10 km southeast of Broken Hill (location: Lat 31.795716, Long 141.585768).Minimum age of mafic dyke emplacement although dykes probably intruded during high-grade metamorphism therefore magmatic and possible metamorphic overprinting ages are likely to be very similar; also consistent with intruded metasedimentary country rocks dated ~1700¿1710 Ma; bimodal 1690 +/- 5 Ma felsic metavolcanics: Page & Laing (1992), Gibson & Nutman (2004).|Amphibolite|metamorphosed basic igneous rock|||Y||17-JAN-23
amphibolite, metagabbro 78292|78292|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic||||intrusion|Paleoproterozoic|1683|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named gabbro (sample 94BH52) intruding Cues Formation, top of Round Hill, ~5 km east of Broken Hill (location: 548297 E, 6466953 N; Lat 31.932167, Long 141.5108330), but described as 'Amphibolite (hornblende-plagioclase+/-garnet+/-orthopyroxene+/-clinopyroxene), metagabbro'. Crystallisation age of Zr-bearing amphibolite from un-named metagabbro intrusion of the Cues Formation (Thackaringa Group) that caps Round Hill near Broken Hill.Nutman & Ehlers (1998).|Amphibolite (hornblende plagioclase+/-garnet+/-orthopyroxene+/ clinopyroxene), metagabbro|metamorphosed basic igneous rock|||Y||17-JAN-23
basalt 82951|82951|igneous rocks 82899|82899|||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|igneous rocks 82899|82899|||Jurassic|||inferred||Jurassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Jurassic igneous rocks - basalt', Jui_b. Many generally very small outcrops in the Sydney basin region. Crawford 1973, Vasconcelos et al., 2008. Previously included in 'teschenite, other mafic rocks 82839'. For use in Alkaline Rocks data compilation.
|Basalt, dolerite and volcanic breccia.|basic volcanic rock|||N||17-JAN-23
basalt dyke 78261|78261|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous||||intrusion|Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Intrusive?|Basalt.|basic volcanic rock|||Y||17-JAN-23
basalt dykes, sills 78247|78247|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Basalt dykes and sills, subalkaline, microlitic and with flow banding.|basic volcanic rock|||Y||17-JAN-23
basalt, andesite, agglomerate 78243|78243|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||||||eruption|||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. NSW Western Division geological-geophysical basement interpretation map, 2012 SOLID GEOLOGY. Age unknown.|Undifferentiated; basalt, andesite, agglomerate unsure|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
basalt, basaltic breccia, monzodiorite, dolerite 78257|78257|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician||||intrusion|Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Basalt, basaltic breccia, (monzo)diorite, dolerite.|basic volcanic rock|intermediate intrusive rock||N||17-JAN-23
basalt, basanite 78238|78238|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic||||eruption|Jurassic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Basalt, analcime basanite, nepheline basalt|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
basalt, dolerite 82952|82952|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous|||inferred||Jurassic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Occur as unnamed sills and hypabyssal intrusives in Newcastle Coal Measures (Locations from Embleton et al., 1985), and unnamed dolerite intrusions, unit Mzui__d  from Colquhoun et al. 2015, probably MZui_b, MZui_d and possibly MZui_h from GSNSW seamless geology dataset 2021). Jurassic(?) to Cretaceous. Only reported ages are for sills in the Newcastle Coal Measures, ranging from 111 Ma to 90.1 Ma. Embleton et al. (1985); Unit Mzui__d suggested to be Jurassic (Colquhoun et al., 2015).|Basalt and dolerite sills and hypabyssal intrusives.|basic igneous rock|||N||17-JAN-23
basalt, trachybasalt, trachyandesite 75809|75809|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neogene||||eruption|Neogene||||||||No|43782||||||Pyroxene olivine basalt, plagioclase basalt, alkali basalt, trachybasalt, trachyandesite. Used on Bathurst 1:250, and all component 1:100k sheets. Age shown as Tertiary , but ~Miocene on time-space plot.|Pyroxene olivine basalt, plagioclase basalt, alkali basalt, trachybasalt, trachyandesite|basic volcanic rock|||N||17-JAN-23
basic igneous rocks 82908|82908|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Tonian|||inferred||Tonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unnamed dykes and gabbroic intrusions (c. 827 Ma)', NP__g.|Tholeiitic dykes and gabbroic intrusions.|basic volcanic rock|basic intrusive rock||Y||17-JAN-23
coastal dunes 38488|38488|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|||||||Unnamed unit used on Australian 1:1M scale surface geology map.  Map symbol: Qdc.|Coastal sand dunes, beach sand, barrier beaches, foredune, beach ridges; calcareous and siliceous, locally shelly and/or cemented (beach rock); locally reworked|regolith|||N||17-JAN-23
colluvium 38491|38491|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Qrc. May have been previously mapped as Qc, Czc, Qrg; some Czr and Czca.|Colluvium and/or residual deposits, sheetwash, talus, scree; boulder, gravel, sand; may include minor alluvial or sand plain deposits, local calcrete and reworked laterite|regolith|||N||17-JAN-23
crustal element Bourke 83102|83102|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Archean|||inferred|||||No|||||||Subsurface unit  for GA Solid Geology layer. Area based on GA crustal elements. Unit AM3 in SARIG solid geology list. Pre-Neoproterozoic basement to Warburton Basin.|Unknown|unknown|||U||17-JAN-23
crustal element Kanmantoo Penola 83104|83104|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Archean|||inferred|||||No|||||||Subsurface unit  for GA Solid Geology layer. Area based on GA crustal elements. Unit AM10 in SARIG solid geology list. Pre-Neoproterozoic basement to Stansbury Basin-Kanmantoo Trough.|Unknown|unknown|||U||17-JAN-23
crustal element Wonominta 83103|83103|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Archean|||inferred|||||No|||||||Subsurface unit  for GA Solid Geology layer. Area based on GA crustal elements. Unit AM4 in SARIG solid geology list. Pre-Neoproterozoic basement to Warburton Basin.|Unknown|unknown|||U||17-JAN-23
dark diorite 75802|75802|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43641||||||Bathurst 1:100k; included in Cm,  Bathurst 250k|||||Y||17-JAN-23
diatomite 68919|68919|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Nandewar Volcanic Complex|41276|||Miocene||||deposition|Miocene||||||||No|||Ollie Raymond|11-MAY-05|||Lithology referring to an unnamed unit within the Nandewar Volcanic Complex to be used for New South Wales 1:1 million geological map, National Maps Project|Diatomite|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
diatreme 78471|78471|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned||||||||||||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. Diatremes. Small normal and reversely magnetised alkali basalt vents, dykes or minor flows. Age shown as ?Permian, Triassic, Tertiary.|||||N||17-JAN-23
diorite 39523|39523|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|||||Upper Ordovician||||||||No|||||||Diorite stocks intersected in drill core, Cootamundra 1:250k sheet area.|Diorite|intermediate intrusive rock|||Y||17-JAN-23
diorite 39525|39525|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Late Ordovician-Early Silurian high-level intrusions in Gidginbung Volcanics interpreted from drill core and aeromagnetics, Cootamundra, Forbes 1:250k sheet areas|Intermediate intrusive|intermediate intrusive rock|||Y||17-JAN-23
dolerite 78233|78233|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Silurian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Dolerite|basic intrusive rock|||Y||17-JAN-23
dolerite 78248|78248|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Alkali dolerite dykes and plugs, porphyritic and ophitic plagioclase, and strongly magnetic.|basic intrusive rock|||Y||17-JAN-23
dolerite dyke #83910|83910|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||||Cambrian||||||||No|||||||Used in GSNSW seamless geology dataset 2021/22 as ‘Ungrouped Cambrian units - dolerite dyke', map symbol Euu_d. Used in GA Solid Geology layer.  Age may be <500 Ma.|Mostly fine-grained, some hornblende-phyric alkaline dykes.||||Y||11-JUN-23
dolerite dyke 78262|78262|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Carboniferous||||intrusion|Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Intrusive?|?wrongly described as basalt?|basic igneous rock|||Y||06-JUN-23
dolerite, diorite 75803|75803|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43640||||||Molong, Bathurst 1:100k; included in Cm,  Bathurst 250k|Dolerite, diorite|basic intrusive rock|||Y||17-JAN-23
dolerite, diorite, gabbro 78252|78252|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Sills and stocks.|Dolerite, diorite, gabbro sills and stocks.|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
dolerite, volcanic breccia, nepheline basalt 78227|78227|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic||||eruption|Jurassic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Dolerite, volcanic breccia, nepheline basalt|basic volcanic rock|basic intrusive rock||N||17-JAN-23
dunes 38496|38496|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Quaternary||||deposition|Cenozoic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Qd.|Dunes, sandplain with dunes and swales; may include numerous interdune claypans; may be locally gypsiferous|regolith|||N||17-JAN-23
dyke 75700|75700|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic||||intrusion|Proterozoic||||||||No|||||||Undifferentiated dykes, many interpreted from air photos with no or little age or lithology control.|Unnamed mafic to felsic dykes. Often interpreted from air photos with little or no age or lithology control.|basic intrusive rock|acid intrusive rock||Y||17-JAN-23
equigranular granite 75805|75805|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43641||||||Medium-grained, equigranular granite  - Bathurst, Blayney 1:100k, shown as Cf felsic dyke -  Bathurst250k|Medium-grained, equigranular granite|acid intrusive rock|||Y||17-JAN-23
felsic intrusive rock #83907|83907|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|||||Upper Ordovician||||||||No|||||||Used in GSNSW seamless geology dataset 2021, 22 as ‘Unassigned Ordovician intrusions - felsic', Oun_f. Used in GA Solid Geology layer.|Monzonite to monzodiorite, monzogabbro, quartz monzonite and minor granite.||||Y||11-JUN-23
felsic intrusive rocks 83884|83884|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||inferred||Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Triassic units - intrusives?,Tut_i. Used in GA Solid Geology layer.|Undifferentiated intrusive felsic igneous rocks.|acid intrusive rock|||Y||15-JUN-23
felsic intrusives 40884|40884|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|||||||Lithology refers to an unnamed unit to be used on New South Wales 1:1 million geological map, National Maps Project.|Undifferentiated felsic intrusives, ?pre-tectonic and syntectonic (Olary Domain and Mount Painter and Eurowie Inliers)|acid intrusive rock|||N||17-JAN-23
felsic intrusives 42016|42016|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Carboniferous|||inferred|intrusion|Carboniferous|||inferred|||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project. Also used in Qld. Subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer, Qld.|Granite, granodiorite, microgranite, leucogranite, monzonite, quartz monzonite, monzogranite, diorite, granophyre|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
felsic intrusives 42022|42022|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred|intrusion|Silurian|||inferred|||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project. this generic unit also extended for use in other states, including Qld.Subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer. Charters Towers 1:250 000 Sheet. Silurian granite, concealed beneath Cz sediments, several clearly visible masses in named large Silurian granite.|Granite, gneissic granite, granodiorite, monzogranite, quartz monzodiorite, leucogranite, aplite.|acid intrusive rock|||Y||17-JAN-23
felsic intrusives 42174|42174|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Granite, granodiorite, tonalite, monzodiorite, quartz monzodiorite, diorite, quartz diorite, leucogranite, aplite|acid intrusive rock|||N||17-JAN-23
felsic intrusives 42187|42187|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian||||intrusion|Permian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Granite, granodiorite, tonalite, leucogranite, aplite, microgranite, quartz-feldspar porphyry; plutons, sills and dykes|acid intrusive rock|||N||17-JAN-23
felsic intrusives 42189|42189|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Triassic||||intrusion|Permian||||||||No|||||||Lithology referring to an unnamed unit to be used for Australian 1:1 million geological map, National Maps Project. Also surface/subsurface unit interpreted by Alastair Stewart for GA Solid Geology layer in Chinchilla 1:250k sheet area.|Felsic intrusive rocks; including tonalite, diorite, granodiorite, granite, monzogranite, rhyolite, microgranodiorite|acid intrusive rock|||N||17-JAN-23
felsic intrusives 68945|68945|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||intrusion|Silurian||||||||No|||||||Lithology referring to an unnamed unit to be used for Queensland 1:1 million geological map, National Maps Project. Also used for 'Pre-Cz geology, NSW & Vic' Silurian - Devonian felsic intrusives, undivided, Silurian and Devonian granites, undifferentiated.From GSV state seamless geology (2014) Map symbol Gx. This unit no longer used for N Qld. Devonian unnamed unit 'granite 80887' now used for Qld [CEB Dec 2019].|Granite, granodiorite and tonalite; microgranite, microgranodiorite; rhyolite; dolerite; granophyre; diorite, gabbro|acid intrusive rock|||Y||17-JAN-23
felsic intrusives 72645|72645|||||Yes|Formation, beds|Unnamed|Unnamed published|Described|||||Paleoproterozoic|||inferred|intrusion|Paleoproterozoic|||inferred|||||No|||||||Unit  used for Northern Territory 1:1 million geological map National Maps Project, as Orosirian to Statherian. Revised to more general  Paleoproterozoic age and also applied to Pre-Cz geology, NSW & Vic,  basement geology of the Exploring for the Future area in 2019. In WA: felsic intrusives; negative gravity anomaly (relative to surrounding units) and typically very weakly or non-magnetic.|Undifferentiated felsic intrusives, some gneissic|acid intrusive rock|||Y||17-JAN-23
felsic intrusives 80510|80510|felsic intrusives 37660|37660|||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician|||inferred||Cambrian|||inferred|||||No|||||||Unnamed unit to be used for Pre-Cz geology of SA-NSW-VIC.|Granite, granodiorite, gneissic granite.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
felsic to intermediate intrusives 39497|39497|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Triassic||||intrusion|Triassic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project. |Granite, granodiorite, diorite, leucogranite, monzogranite, quartz monzonite, tonalite, trondhjemite, gabbro|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
felsic to intermediate volcanics and high level intrusives 42180|42180|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic||||eruption|Mesozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Trachyte, syenite, tuff, minor rhyolite, minor phonolite, minor obsidian|intermediate igneous rock|||Y||17-JAN-23
felsic to intermediate volcanics and high level intrusives 68002|68002|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Nandewar Volcanic Complex|41276|||Early Miocene||||eruption|Early Miocene||||||||No|||Ollie Raymond|15-FEB-05|||Lithology referring to an unnamed unit to be used for NSW 1:1 million geological map, National Maps Project|Alkali rhyolite, comendite, trachyte plugs, domes and dykes|acid volcanic rock|||Y||17-JAN-23
felsic volcanic and volcaniclastic rocks 42192|42192|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian||||eruption|Silurian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Felsic to intermediate volcanic and volcaniclastic rocks|acid volcanic rock|intermediate volcanic rock||N||17-JAN-23
felsic volcanic rocks #83906|83906|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||||Triassic||||||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Triassic units - volcanics,Tut_v. Used in GA Solid Geology layer.|Rhyolite and rhyolitic volcanic rocks.||||N||04-AUG-23
felsic volcanics and high level intrusives 42173|42173|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||eruption|Devonian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Quartz-feldspar porphyritic rhyolitic to rhyodacitic high level intrusives, microgranite dykes, small stocks and associated aphanitic dykes|acid volcanic rock|||N||17-JAN-23
felsic volcanics and high level intrusives 42186|42186|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cisuralian||||eruption|Cisuralian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Rhyolitic volcanics and subvolcanic intrusives|acid volcanic rock|||N||17-JAN-23
felsic volcanics and high level intrusives 42193|42193|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cenozoic||||eruption|Cenozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Felsic volcanic and high level intrusive rocks|acid volcanic rock|||N||17-JAN-23
ferruginous duricrust 38498|38498|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Czl.|Ferruginous duricrust, laterite; pisolitic, nodular, vuggy; may include massive to pisolitic ferruginous subsoil, mottled clays, magnesite, reworked products of ferruginous and siliceous duricrusts, calcrete, gossan; residual ferruginous saprolite|regolith|||N||17-JAN-23
gabbro 39529|39529|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian||||intrusion|Late Silurian||||||||No|||||||highly magnetic linear intrusions west of Gilmore FZ.  May be related to the Jurassic lamprophyres Cootamundra 1:250k sheet area.|mafic intrusive|basic intrusive rock|||Y||17-JAN-23
gabbro 78241|78241|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||intrusion|Permian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY. Age given as Permian?|Gabbro|basic intrusive rock|||Y||17-JAN-23
gabbro 78265|78265|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician||||intrusion|Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Gabbro.|basic intrusive rock|||Y||17-JAN-23
gabbro, diorite 78281|78281|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Unnamed Pluton 8.|Gabbro, diorite|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
gabbro, dolerite 78264|78264|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.  ?Assumed to be same age as Middledale Gabbroic Diorite?|Gabbro and dolerite (mainly north-trending).|basic intrusive rock|||Y||17-JAN-23
gabbroic diorite 78263|78263|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.  ?Assumed to be same age as Middledale Gabbroic Diorite?|Gabbroic diorite.|intermediate intrusive rock|||Y||17-JAN-23
gabbroic intrusions 78240|78240|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||intrusion|Permian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Gabbroic intrusions|basic intrusive rock|||Y||17-JAN-23
granite - high magnetic intensity 78468|78468|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Silurian||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. MG. Areas of granite and intermediate intrusives having high magnetic intensity.||acid intrusive rock|||Y||17-JAN-23
granite - low magnetic intensity 78469|78469|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Silurian||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. NMG. Areas of granites (both S-type and some I-types) having low magnetic intensity.|granites|acid intrusive rock|||Y||12-OCT-23
granite 39517|39517|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|||||||Granitoids interpreted from aeromagnetic data Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39518|39518|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|||||||Granitoids interpreted from aeromagnetic data. Cootamundra, Forbes 1:250k sheet area. Also used on Temora and Junee 1:100 000 geological map sheets.|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39519|39519|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|||||||Granitoids interpreted from aeromagnetic data Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39521|39521|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|||||Upper Devonian||||||||No|||||||Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39524|39524|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Late Ordovician-Early Silurian high-level intrusions in Gidginbung Volcanics interpreted from drill core and aeromagnetics Cootamundra 1:250k sheet area|Granite felsic intrusive.|acid intrusive rock|||Y||17-JAN-23
granite 39530|39530|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|||||||unnamed granites of the Wollundry Suite interpreted from aeromagnetic data - low magnetic intensity Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39531|39531|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|||||||unnamed granites of the Wollundry Suite interpreted from aeromagnetic data - high magnetic intensity Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39532|39532|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|||||||unnamed granites interpreted from aeromagnetic data - intermediate magnetic intensity Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39533|39533|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|||||||unnamed granites interpreted from aeromagnetic data - high magnetic intensity Cootamundra 1:250k sheet area|Felsic intrusive|acid intrusive rock|||Y||17-JAN-23
granite 39545|39545|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Late Silurian|||||Late Silurian||||||||No|||||||Unnamed intrusion interpreted from geophysics Cootamundra 1:250k sheet area|Granite: low magnetic intensity.  Felsic intrusive.|acid intrusive rock|||Y||17-JAN-23
granite 67924|67924|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||Bundarra Supersuite|67901|Cisuralian||||intrusion|Cisuralian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Coarse to very coarse grained, porphyritic and equigranular (biotite) - (muscovite) - (garnet) -(cordierite) granite and leucogranite. K-feldspar megacrysts abundant in places|acid intrusive rock|||Y||17-JAN-23
granite 82063|82063|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||inferred||Permian|||inferred|||||No|||||||Mapped as `Fine to medium pink biotite granite? by GSQ on their Detailed Solid Geology 2018 dataset.|Fine to medium pink biotite granite.|acid igneous rock|||Y||17-OCT-23
granite 82901|82901|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||inferred||Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Triassic New England granites' Tug. May replace New England Batholith Triassic intrusives 78424 used in Qld in 2013.|Granite.|acid intrusive rock|||Y||25-AUG-23
granite, gneiss, schist - curved trends, low magnetic intensity 78470|78470|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned||||||||||||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. SPG. Curved magnetic trends of low intensity. Undifferentiated granite, gneiss and schist. Age: ?Devonian.||acid intrusive rock|||Y||17-JAN-23
granodiorite 39544|39544|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Granodiorite: high level intrusion in Gidginbung Volcanics (intersected in drill core) Cootamundra 1:250k sheet area|Granodiorite. Felsic intrusive.|acid intrusive rock|||Y||17-JAN-23
granodiorite, aplite 75801|75801|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||Bathurst Granite|1244|Carboniferous|325||inferred, intrusive relationship|intrusion|Carboniferous|330||inferred, intrusive relationship|||||No|43639||||||Porphyritic granite and granodiorite, aplite  - Oberon 1:100k; equigranular granodiorite, aplite -  Bathurst 1:250k|Porphyritic granite and granodiorite, aplite|acid intrusive rock|||Y||17-JAN-23
gravel 75810|75810|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neogene||||deposition|Paleogene||||||||No|43782||||||Used on Bathurst 1:250, and Oberon, Molong, Orange 100k sheets. Age shown as Tertiary. GSNSW preferes to use 'alluvial gravel deposits' for this unit.|||||N||17-JAN-23
gravel, sand 75808|75808|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|43640||||||Used on Bathurst 1:250, Cowra  & Molong 1:100k. GSNSW prefers to use 'alluvial sand and gravel' for this unit.|||||N||17-JAN-23
hornblende gabbro 75806|75806|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous||||intrusion|Carboniferous||||||||No|43654||||||Hornblende gabbro - Blayney 1:100k, shown as Cm - Bathurst 250k. Also used on Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2¿ Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW and on Mafic-Ultramafic Event Series dataset 2013, Geoscience Australia.|Hornblende gabbro|basic intrusive rock|||Y||17-JAN-23
igneous rocks - breccia 82840|82840|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||inferred||Mesozoic|||inferred|||||No|||Champion, D.C., Beyer, E. (GA)|24-SEP-21|||Used in GSNSW seamless geology dataset 2021 as MZui__v, 'Ungrouped Mesozoic igneous units - breccia'. For use in Alkaline Rocks data compilation. Widespread in the eastern Rylstone area. Mesozoic-Cenozoic? [said to be Jurassic-Cretaceous in GSNSW Seamless] Spatially associated with widespread Cenozoic volcanics so may be Cenozoic wholly or partly in age.|Volcanic breccias and associated volcanic rocks.|igneous volcanic rock|||N||19-JUL-23
igneous rocks - gabbro 82843|82843|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic|||inferred||Upper Triassic|||inferred|||||No|||Champion, D.C., Beyer, E. (GA)|24-SEP-21|||Used in GSNSW seamless geology dataset 2021 as MZui__g, 'Ungrouped Mesozoic igneous units - gabbro', Jurassic. For use in Alkaline Rocks data compilation. Unit based on 2015 version of GSNSW Seamless. Multiple unnamed bodies in the Mittagong-Wollongong region.Late Triassic to Jurassic . McDougall and Wellman (1976) and Carr (1984) report ages of ca. 198 to 202 Ma for dolerites in the region|Olivine dolerite, gabbro.|basic intrusive rock|||Y||19-JUL-23
igneous rocks - teschenite 82842|82842|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Eocene|47||||Jurassic|168|||||||No|||Champion, D.C., Beyer, E. (GA)|24-SEP-21|||Used in GSNSW seamless geology dataset 2021 as MZui__t	, 'Ungrouped Mesozoic igneous units - teschenite', Jurassic. For use in Alkaline Rocks data compilation. Unit based on 2015 version of GSNSW Seamless. Multiple unnamed bodies in the Mittagong-Wollongong region. Similar to unit ?Mafic volcanic rocks 38495? of Raymond et al. (2012), which they show as Cenozoic not Mesozoic|Intrusive teschenite|foid-bearing intrusive rock|||Y||18-JUL-23
igneous rocks 82899|82899|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Jurassic|||inferred||Jurassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Jurassic igneous units', Jui.|Igneous rocks including analcimite dykes and plugs; basalt, dolerite and volcanic breccia.; diorite sills and dykes; microsyenite, trachytic intrusions.|igneous rock|||Y||17-AUG-23
igneous rocks 82903|82903|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Mesozoic igneous units', MZui.|Alkaline igneous rocks including basalt, dolerite, trachyte, phonolite, teschenite and volcaniclastic breccia.|basic igneous rock|foid-bearing igneous rock||Y||17-AUG-23
igneous rocks 82906|82906|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Palaeoproterozoic units' PPuu (only pegmatite,  PPuu__p used in seamless)|Includes pegmatite.|igneous intrusive rock|||Y||17-JAN-23
igneous, metamorphic and sedimentary rocks 82907|82907|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as subunits of 'Ungrouped Neoproterozoic units', NPuu.|Includes: basalt (identified using geophysics); feldspar porphyritic, fine grained, stratabound to weakly discordant mafic sills (often altered to serpentinite); tholeiitic dykes and gabbroic intrusions; Alkaline dykes and plugs;  sandstone.|basic volcanic rock|sedimentary rock||Y||17-JAN-23
intermediate igneous - moderate magnetic intensity 78465|78465|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. II. Areas of moderate magnetic intensity. Possible intermediate plutonic/volcanic unit. Age shown as ?Ordovician-Devonian|||||U||17-JAN-23
intermediate to felsic intrusives 42179|42179|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Jurassic||||intrusion|Jurassic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Syenite, microsyenite|intermediate intrusive rock|||N||17-JAN-23
intermediate to felsic volcanic and intrusive rocks 82841|82841|felsic to intermediate volcanics and high level intrusives 42180|42180|||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic|||inferred||Triassic|||inferred|||||No|||Champion, D.C., Beyer, E. (GA)|24-SEP-21|||Used in GSNSW seamless geology dataset 2021 as MZui__r	, 'Ungrouped Mesozoic igneous units - trachyte', Jurassic. For use in Alkaline Rocks data compilation. Widespread in the eastern Rylstone area. Includes informal units: Bald Hill laccolith; Wilpinjong syenite, Big Oakeys laccolith, Pinnacle Mount laccolith, Round Mountain laccolith, Jimmy Jimmy flow and Wollar sill. Triassic to Jurassic, and younger(?). Also comprises part of 'felsic to intermediate volcanics and high level intrusives 42180' (GA), and includes Ma subdivision of Warren et al. (1999).|Trachyte, phonolite, nepheline phonolite, syenite, intermediate to felsic volcanic rocks and intrusives.|intermediate volcanic rock|foid-bearing volcanic rock||Y||17-JAN-23
intermediate to mafic intrusives 42019|42019|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician||||intrusion|Ordovician||||||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project.|Monzonite, quartz monzonite, syenite, diorite, monzogabbro, gabbro; minor felsic intrusives|intermediate intrusive rock|||Y||17-JAN-23
intrusion, magnetic 78224|78224|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||||Neoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013.  Interpreted from geophysics. said to be Neoproterozoic [on what basis?]. Gilmore, P.J., Greenfield, J.E., Mills, K., Musgrave, R.E., and Reid, W.J. 2011 Koonenberry Belt 1:250 000 Solid Geology , Geological Survey of NSW, Maitland.||igneous intrusive rock|||Y||17-JAN-23
intrusive igneous rocks 82920|82920|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Silurian intrusions', Sui. Used in GA Solid Geology layer.|Unspecified igneous intrusive rock, including porphyry dykes, gabbro, aplite, dolerite, biotite granite, felsic intrusions, granite, leucogranite,quartz diorite, tonalite.|igneous intrusive rock|||Y||02-AUG-23
intrusive rocks - diatremes 83023|83023|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Permian intrusive (geophysical interpretation) - diatreme' Pgx_d, Pgx_dn, Pgx_dr.  Both normally and reversely polarised types recognised. Used in GA Solid Geology layer, Alkaline rocks dataset. Although the diatreme have been referred to as “kimberlitic”, true kimberlitic material has not been found, and the igneous matrix is best described as alkali basalt (Jaques et al., 2008; Mills, 2002).|Diatremes interpreted from geophysics. Dull grey-green to black, fragmental rocks comprising lower crustal and mantle-derived mafic-ultramafic inclusions and abrasion-rounded clasts of hornfelsed country rock, with garnet granulite & eclogite inclusions.|igneous material|||Y||06-JUN-23
intrusive rocks 82900|82900|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||inferred||Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Triassic intrusives', Tui. Used in GA Solid Geology layer.|Granite to porphyritic microgranite, granodiorite, microgranite; monzogranite, leucomonzogranite and monzodiorite.|acid intrusive rock|intermediate intrusive rock||Y|I-type|16-AUG-23
intrusive rocks 82905|82905|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Mesoproterozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Mesoproterozoic intrusions', MPui. Used in GA Solid Geology layer.|Includes pegmatite, deformed leucogranite, or mixtures of these.|igneous intrusive rock|||Y||17-JAN-23
intrusive rocks 82913|82913|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Devonian intrusions', Dui, Duu. Intrusive rocks, likely mostly felsic in composition (granite, granodiorite). Based mainly on geophysical interpretation. Used in GA Solid Geology layer, and EGGS interpretation of VIMP 8 drillhole (See VIMP report 52, 1997)|Intrusive rocks, likely mostly felsic in composition (granite, granodiorite). Based mainly on geophysical interpretation. Also dacite, andesite, rhyolite.|igneous intrusive rock|||Y||30-SEP-23
intrusive rocks 82917|82917|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Pennsylvanian|||inferred||Pennsylvanian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as  'Unassigned Late Carboniferous intrusions', Cul, some identified as dykes. Also includes CuC_d, Cuc_e, Cuc_g. Used in GA Solid Geology layer.|Includes dolerite, diorite, gabbro, tonalite.|basic intrusive rock|acid intrusive rock||Y||01-AUG-23
intrusive rocks 82924|82924|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Ordovician intrusions', Ouo. Used in GA Solid Geology layer.|Various igneous intrusive rocks.|igneous intrusive rock|||Y||17-JAN-23
intrusive rocks 82930|82930|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Unassigned Permian intrusions' Pui. Used in GA Solid Geology layer.|Igneous rocks including granitoid, dolerite, felsic porphyry, gabbro, diorite, mafic dykes and sills, felsic intrusives, tonalite, felsic volcanics.|igneous intrusive rock|igneous volcanic rock||Y|I-type|15-AUG-23
intrusive rocks 82935|82935|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Palaeozoic intrusions', PZui. Used in GA Solid Geology layer. Note that the Unassigned Palaeozoic intrusions - mafic intrusions PZui_m subunit has been recognised separately in the Alkaline Rocks dataset and compared with 'intrusive rocks - diatremes 83025'.|Mixture of intrusions and metasediments with intrusion-related effects. Includes diorite, gabbro, granites, intermediate intrusives, possible diatremes.|igneous intrusive rock|||Y||06-JUN-23
intrusive rocks 83867|83867|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Pennsylvanian|||inferred||Mississippian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as  'Unassigned Carboniferous intrusions', Cuc. Used in GA Solid Geology layer.|Felsic to intermediate intrusions at depth, inferred from geophysics.|acid intrusive rock|intermediate intrusive rock||Y||01-AUG-23
lake deposits 38492|38492|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Qt.|Lake and swamp deposits; mud, silt, evaporites, limestone; minor sand, peat|regolith|||N||17-JAN-23
lamprophyre 39522|39522|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Triassic|||||Triassic||||||||No|||||||mafic intrusive Cootamundra 1:250k sheet area.|Lamprophyres of Jurassic age||||N||17-JAN-23
leucogranite 75807|75807|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||Bathurst Granite|1244|Carboniferous|||||Carboniferous||||||||No|43639||||||Bathurst 1:100k, Orange 1:100k, Blayney 1:100k, Oberon 1:100k shown as part of Bathurst Granite. On Bathurst 1:250k this unit is not included as part of Bathurst Granite|Leucogranite|acid intrusive rock|||Y||17-JAN-23
lunette dunes 72955|72955|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Quaternary|||||Quaternary||||||||No|||||||Used in the 1:1 million scale Surface Geology of Australia dataset. GSNSW prefers to use 'aeolian lunette' for this unit.|Quartz and gypsum dunes and mounds (kopi); may include minor silt, sand, gravel, and clay flats adjacent to playas; locally includes some playa sediments|regolith|||N||17-JAN-23
mafic and intermediate volcanics and intrusives 42184|42184|||||Yes|Member, phase|Unnamed|Unnamed published|Mentioned|Kara beds|9266|||Neoproterozoic||||eruption|Neoproterozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Alkali basalt, trachybasalt, trachyte and related intrusives|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
mafic dykes 78230|78230|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||intrusion|Permian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Mafic dykes: Gabbroic, olivine basalt, dolerite, & dioritic dykes|basic intrusive rock|basic volcanic rock||Y||17-JAN-23
mafic intrusions 78277|78277|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Mafic Intrusions|basic intrusive rock|||Y||17-JAN-23
mafic intrusive rocks #83911|83911|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|intrusive rocks 82935|82935|||Permian|||||Cambrian||||||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Palaeozoic intrusions- mafic intrusions', PZui_m and this subunit has been recognised separately in the Alkaline Rocks dataset and compared with 'intrusive rocks - diatremes 83025'.  The more general PZui unit is used in GA Solid Geology layer.|mafic igneous intrusions and possible diatremes.||||Y||11-JUN-23
mafic intrusives 40886|40886|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleozoic||||intrusion|Mesoproterozoic||||||||No|||||||Lithology refers to an unnamed unit to be used on New South Wales 1:1 million geological map, National Maps Project.|Undifferentiated mafic intrusives|basic intrusive rock|||N||17-JAN-23
mafic intrusives 42015|42015|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Carboniferous||||intrusion|Carboniferous||||||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project.|Dolerite, diorite, gabbro, tonalite|basic intrusive rock|||Y||17-JAN-23
mafic intrusives 42017|42017|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||intrusion|Devonian||||||||No|||||||Lithology referring to an unnamed unit to be used for the Australia 1:1 million geological map, National Maps Project.|Dolerite, gabbro, diorite, quartz diorite, monzodiorite, quartz monzodiorite, tonalite; rare lamprophyre|basic intrusive rock|||Y||17-JAN-23
mafic intrusives 42021|42021|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian||||intrusion|Late Silurian||||||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project.|Dolerite, diorite, gabbro, norite, leucotonalite|basic intrusive rock|||Y||17-JAN-23
mafic intrusives 42172|42172|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||Moruya Suite|12371|Lower Devonian||||intrusion|Late Silurian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Diorite, gabbro, hornblende gabbro|basic intrusive rock|intermediate intrusive rock||N||17-JAN-23
mafic intrusives 42178|42178|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Jurassic||||intrusion|Jurassic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Dolerite, gabbro|basic intrusive rock|||N||17-JAN-23
mafic intrusives 42182|42182|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic||||intrusion|Mesozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Alkali diorite, alkali gabbro, teschenite|basic intrusive rock|foid-bearing intrusive rock||N||17-JAN-23
mafic intrusives 42185|42185|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian||||intrusion|Permian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Gabbro, dolerite|basic intrusive rock|||N||17-JAN-23
mafic intrusives 78290|78290|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|1673|13|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named mafic intrusive rock in Thackaringa region, ~30 km southwest of Broken Hill (reference to large dark-coloured hills to the east; no locational data ),  but lith description says 'amphibolite'? Age: Magmatic emplacement age (unpublished data, A.P. Donaghy) from Gibson et al. (1998).|?amphibolite|metamorphosed basic igneous rock|||Y||17-JAN-23
mafic intrusives 78294|78294|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|1690|11|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named mafic intrusive rock in Thackaringa region, ~30 km southwest of Broken Hill (reference to mafic intrusive into anatectic albitic metasediments; no locational data). Magmatic emplacement age (Unpublished data - A.P. Donaghy) from Gibson et al. (1998).|Amphibolite|metamorphosed basic igneous rock|||Y||17-JAN-23
mafic schist 78278|78278|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Pillow basalts and deep marine clastic material, observed in a quarry to the east of Narromine. Note: lith description does not match name.|Pillow basalts and deep marine clastic material|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
mafic to intermediate intrusions 78249|78249|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Mafic to intermediate Intrusions.|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
mafic to intermediate intrusions, sills, stocks 78250|78250|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Mafic to intermediate intrusions, sills and stocks.|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
mafic to intermediate intrusives 68001|68001|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Nandewar Volcanic Complex|41276|||Early Miocene||||intrusion|Early Miocene||||||||No|||Ollie Raymond|15-FEB-05|||Lithology referring to an unnamed unit to be used for NSW 1:1 million geological map, National Maps Project|Analcime dolerite and teschenite sills, dykes and plugs; monzonite|basic intrusive rock|||Y||17-JAN-23
mafic to intermediate volcanic rocks 82927|82927|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Ordovician volcanics'. Ouv. Used in GA Solid Geology layer.|Mafic to intermediate volcanic and volcaniclastic rocks.|igneous volcanic rock|||N||27-FEB-23
mafic to intermediate volcanics 68000|68000|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Nandewar Volcanic Complex|41276|||Early Miocene||||eruption|Early Miocene||||||||No|||Ollie Raymond|15-FEB-05|||Lithology referring to an unnamed unit to be used for NSW 1:1 million geological map, National Maps Project|Hawaiite, trachyandesite, tristanite, trachyte, minor peralkaline trachyte, tuff|basic volcanic rock|||N||17-JAN-23
mafic volcanic rocks 82937|82937|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Cambrian volcanics', Euv. Equivalent to Magdala Volcanics and Pitfield Volcanics in Victoria - no outcrop in NSW. Moderately to strongly magnetic. Moderate gravity response moderate.Used in GA Solid Geology layer.|Includes mafic volcanic rocks, Tholeiitic basaltic volcanics and volcaniclastics.|basic volcanic rock|||N||17-JAN-23
mafic volcanics 42170|42170|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian||||eruption|Cambrian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Basalt, andesite, minor felsic volcanic rocks, chert and slate|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
mafic volcanics 42177|42177|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Jurassic||||eruption|Jurassic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Basaltic flows, sills and dykes; teschenite|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
mafic volcanics and high level intrusive rocks 42024|42024|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neogene||||eruption|Cenozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for the Australian 1:1 million geological map, National Maps Project.|Tholeiitic and alkali basalt; trachybasalt, trachyandesite, trachyte, olivine leucitite, basanite, nephelinite, limburgite, dolerite; rare felsic volcanics, volcaniclastic sediments and soil horizons|basic volcanic rock|||N||17-JAN-23
mafic volcanics and high level intrusives 42181|42181|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesozoic||||eruption|Mesozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Microlitic hawaiite lava, alkali basalt, dolerite, basanitic basalt, alkali gabbro, teschenite, basaltic diatreme|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
mafics, ultramafics 78255|78255|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Shown as intrusive. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Mafic and ultramafic rocks, cherts, bif, quartz-mica schist.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
melange 69459|69459|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian||||deposition|Cambrian||||||||No|||Ollie Raymond||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project|Melange zone containing variably sized blocks of dolerite, diorite, gabbro, red chert, limestone, manganiferous carbonate, basalt, metabasalt, amphibolitised olivine norite, amphibolite and rare blueschists|igneous rock|sedimentary rock||N||17-JAN-23
melange 75701|75701|||||Yes|Formation, beds|Informal|Unnamed published|Mentioned|||||Permian||||intrusion|Cambrian||||||||No|||||||Informal unnamed grouping of melange rocks, referred to by some as the "Port Macquarie complex".  For use in the Surface Geology of Australia, 1:1,000,000 sclae dataset, 2010.|Melange of the Port Macquarie Complex; dolerite, gabbro, diorite, basalt, chert, jasper, toanlite, trondhjemite, quartz feldspar porphyry.|basic intrusive rock|basic volcanic rock||N||17-JAN-23
metasedimentary rocks 82922|82922|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Eastern Lachlan Silurian units', Sue. Poorly known metasedimentary rocks of suspected Silurian age. Used in GA Solid Geology layer.|Poorly known metasedimentary rocks.|metasedimentary rock|||N||17-JAN-23
metasediments - high magnetic intensity 78463|78463|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. COm. Zones of high magnetic intensity interpreted at depth. Possible mafic horizons or enhanced magnetism associated with major fault zones. Age shown as ?Ordovician-Devonian.|||||N||17-JAN-23
metasediments - linear trends, moderate magnetic intensity 78467|78467|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. Fol. Linear trends of moderate magnetic intensity. Age and association uncertain. Possibly magnetised metasediments similar to Nurri Group?  Age shown as ?Ordovician-Devonian.|||||N||17-JAN-23
metasediments - low magnetic intensity 78464|78464|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. COsl. Broad areas of low magnetic intensity interpreted as metasedimentary rocks. Age shown as ?Ordovician-Devonian|||||N||17-JAN-23
metasediments, mafic volcanics - low to moderate magnetic intensity 78462|78462|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||eruption|Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. SIV. Broad areas of low  to moderate magnetic intensity interpreted as siliciclastic metasedimentary rocks containing mafic horizons(flows and sills?). Age shown as ?Ordovician-Devonian|Metasediments, volcaniclastic sediments, mafic volcanics, tuff, dolerite, gabbro.||||N||17-JAN-23
metavolcanic and metasedimentary rocks 83089|83089|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted for GA Solid Geology layer. After unit NE3 from Wise, T.W., 2020. Interpreted basement geology to the Murray Basin and surrounds. Base age unknown. May well be older than Neoproterozoic.|Undifferentiated mafic metavolcanics and metasedimentary units including metapelites, meta-greywackes, meta-limestones, intruded by granite, dolerite|metamorphosed basic igneous rock|metasedimentary rock||N||17-JAN-23
microsyenite, trachyte 78236|78236|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic||||eruption|Jurassic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|microsyenite, trachyte|intermediate volcanic rock|||N||17-JAN-23
migmatite 42169|42169|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Cooma Metamorphic Complex|4572|||Lower Ordovician|||||Lower Ordovician||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Migmatites, minor amphibolites including Soho Street Amphibolite|high grade metamorphic rock|||N||17-JAN-23
monchiquite, nephelinite, basanite 82967|82967|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Miocene|||inferred||Jurassic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Group of 3 known occurrences in the Harden-Jugiong region: the Murrumburrah dyke complex [Murrumburah Monchiquite 13570], Goobarralong diatreme, Jugiong diatreme.Ferguson et al. (1979), based on geochemical comparisons, suggested that the diatremes were similar to the Murrumburrah complex.Jaques (2008) inferred an age of Jurassic for Jugiong. Ferguson et al. (1979) suggest it may be Cenozoic in age. Wellman et al. (1970) record a K-Ar age of 198 Ma for the Murrumburrah dyke complex. Both Cundari (1973) and Jaques (2008) suggest this unit is Cenozoic, based on apparent similarity to leucitite volcanics in central NSW. As noted by Wellman et al. (1970) the Murrumburrah body is intrusive unlike the younger occurrences.|Nepheline-bearing biotite-bearing olivine-titanaugite leucite monchiquite. Autoliths of nephelinite, basanite, limburgite and alnoite, with basanite dominant at deeper levels. Dominantly basanite autoliths and minor leucitite autoliths.|exotic composition igneous rock|foid-bearing igneous rock||Y||17-JAN-23
monzodiorite 39527|39527|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Late Ordovician-Early Silurian high-level intrusions in Gidginbung Volcanics interpreted from drill core and aeromagnetics Cootamundra 1:250k sheet area|Monzodiorite; felsic intrusive.|intermediate intrusive rock|||Y||17-JAN-23
monzodiorite 39528|39528|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Late Ordovician-Early Silurian high-level intrusions in Gidginbung Volcanics interpreted from drill core and aeromagnetics Forbes 1:250k sheet area|Intermediate intrusive|intermediate intrusive rock|||Y||17-JAN-23
monzonite 39526|39526|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Late Ordovician-Early Silurian high-level intrusions in Gidginbung Volcanics interpreted from drill core and aeromagnetics Cootamundra, Forbes 1:250k sheet area|Monzonite; felsic intrusive.|intermediate intrusive rock|||Y||17-JAN-23
monzonite 82923|82923|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Ordovician|||inferred||Upper Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Unassigned Late Ordovician intrusions', Oul (statewide), Oum (Lachlan Orogen). Used in GA Solid Geology layer.|Monzonite, monzodiorite, porphyry, syenite, metagabbro, diorite, andesite.|intermediate intrusive rock|basic intrusive rock||Y||13-JUN-23
nephelinite, breccia 82966|82966|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Lower Cretaceous|||inferred||Middle Jurassic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation.Two small outcrops of breccia [pipes], one with a mela-nephelinite intrusive, ~26 km MNW of Delegate  Locations from Lovering and White 1969 (Note: they actually say 35km) RefID 34307. Middle Jurassic to Early Cretaceous 141 Ma (McDougall and Wellman 1976, RefID 32104). Lovering and Richards (1964) RefID 72225, report ages in the range 120?170 Ma. It is not clear if they are all one age or breccia pipes and nephelenite are of different age. See also White and Chappell 1989 RefID 41905, for more on geology.|mela-nephelinite and two occurrences of basanitic and olivine nephelinitic breccia.|foid-bearing volcanic rock|||Y||17-JAN-23
ocean crust 1 - 78279|78279|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Deep marine ophiolites and clastic sediments at depth. Inferred from geophysics|ultramafic volcanic rock|siliciclastic sedimentary rock||U||17-JAN-23
ocean crust 2 - 78280|78280|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Deep marine ophiolites and clastic sediments at depth. Inferred from geophysics|ultramafic volcanic rock|siliciclastic sedimentary rock||U||17-JAN-23
olivine dolerite, gabbro 78235|78235|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Jurassic||||intrusion|Jurassic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|olivine dolerite, gabbro|basic intrusive rock|||Y||17-JAN-23
pelitic metasedimentary rocks 83088|83088|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted for GA Solid Geology layer. Adapted after unit NE2 from Wise, T.W., 2020. Interpreted basement geology to the Murray Basin and surrounds. In SA and NSW and possibly Vic. Base age unknown. May well be older than Neoproterozoic.|Undifferentiated dominantly pelitic metasedimentary deposits, intruded by granite, dolerite.|metasedimentary siliciclastic rock|||N||17-JAN-23
phase a 75815|75815|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Bathurst Granite|1244|Carboniferous||||intrusion|Carboniferous||||||||No|43639||||||Of Bathurst Granite. Mafic I-type granite. Description in Bathurst digital data set matches Oberon 1:100k description - Porphyritic granite and granodiorite, aplite. Description on Bathurst 1:250k published map is different - equigranular granodiorite, aplite|Porphyritic granite and granodiorite, aplite|acid intrusive rock|||Y|I-type|17-JAN-23
phase e 75816|75816|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||Gresham Granite|21911||||||||||||||No|43653||||||Enclave-rich granite|Enclave-rich granite|acid intrusive rock|||Y||17-JAN-23
porphyry, gabbro 78239|78239|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||intrusion|Permian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Hornblende-biotite porphyry, gabbro|basic intrusive rock|||Y||17-JAN-23
possible equivalents of  Amphitheatre and Winduck Groups 78459|78459|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||deposition|Ordovician||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. PZsn. Possible Devonian siliciclastic sediment equivalents of Amphitheatre and Winduck Groups. Broad featureless areas of very low magnetic intensity sediments.  Age: ?Ordovician - Devonian. Also used in GA 1:2.5m Bedrock Geology.|sediments -broad featureless areas of  very low magnetic intensity.|siliciclastic sedimentary rock|||N||17-JAN-23
pyroxenite ultramafics 78286|78286|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Unnamed Serpentinite and Ultramafic Unit 3.|Undifferentiated pyroxenite ultramafics|ultramafic intrusive rock|||Y||17-JAN-23
pyroxenite, meta-monzogabbro 78266|78266|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Pyroxenite, meta-monzogabbro.|ultramafic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
pyroxenite, peridotite, dunite, gabbro, basalt 78256|78256|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||||||intrusion|||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Pyroxenite, peridotite, dunite, gabbro, basalt.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
quartz veins 82939|82939|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `quartz vein?, q. Used in GA Solid Geology layer.|A thin, extensive curvi-planar body of intrusive milky white to translucent quartz, texturally massive to internally zoned, staged crystal growth or laminar quartz; usually occupying a fracture. Country rock fragments or mineralisation present.|metasomatic rock|||Y||17-JAN-23
residual deposits- silcrete|77079|silcrete 75811|75811|||Yes|Formation, beds|Unnamed|Unnamed published|Reserved|||||Cenozoic|||||Cenozoic||||||||No|||Greenfield, J. (GSNSW)|10-JUL-12|||Unnamed regolith unit.|White to grey to brown, strongly silicified duricrust being: fine- to medium-grained angular quartz-lithic clasts within an opaline to microcrystalline siliceous matrix|regolith|||N||17-JAN-23
rhyolite 83866|83866|volcanic rocks 82933|82933|||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|volcanic rocks 82933|82933|||Permian|||inferred||Permian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Permian volcanic rocks - rhyolite?, Puv_r. Used in GA Solid Geology layer.|Rhyolite.|acid volcanic rock|||N||27-APR-23
rhyolite, porphyritic 75804|75804|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||||Carboniferous||||||||No|43641||||||Rhyolite; porphyritic, spherulitic, often flow-banded, Bathurst 1:100k; described as felsic dyke on  Bathurst 250k|Rhyolite; porphyritic, spherulitic, often flow-banded|acid volcanic rock|||Y||17-JAN-23
sand plain 38499|38499|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Czs.  May have been previously mapped as Qs; some Czr in QLD.|Sand or gravel plains; may include some residual alluvium; quartz sand sheets commonly with ferruginous pisoliths or pebbles; local clay, calcrete, laterite, silcrete, silt, colluvium|regolith|||N||17-JAN-23
schist 42171|42171|Binjura beds|1699|||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|Cooma Metamorphic Complex|4572|||Lower Ordovician|||||Lower Ordovician||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Mica schist, biotite schist, andalusite-sillimanite bearing schist, orthoclase-cordierite knotted schists|metasedimentary siliciclastic rock|||N||17-JAN-23
sedimentary and igneous rocks 82936|82936|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Cambrian units', Euu. Used in GA Solid Geology layer.|Includes dolerite dykes, felsic igneous rocks, quartz [veins?], sedimentary rocks.|unknown|||Y||17-JAN-23
sedimentary and metamorphic rocks 82926|82926|undifferentiated Ordovician rocks 78254|78254|||Yes|Group, Suite|Unnamed|Unnamed published|Mentioned|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Ordovician units', Ouu. Mostly used for informally grouping various named sedimentary and metamorphic units.Probably replaces, at least in part, Stratno 78254. Used in GA Solid Geology layer.|Unspecified, but includes serpentinite, a variety of sedimentary rocks. metamorphic rocks and minor volcanic rocks|sedimentary rock|metamorphic rock||N||17-JAN-23
sedimentary and volcanic rocks 82855|82855|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||This unit represents the 'Su - undifferentiated Silurian sediments and volcanics' shown on the 1996 Walgett 1:250k geological sheet, and includes the 'indurated shale, greywacke, indurated shale interval' shown at the bottom of the hole in the 1963 Sandy Camp 1 WCR. May be equivalent to Cobar Supergroup.|Includes indurated shale, greywacke.|sedimentary rock|||N||17-JAN-23
sedimentary and volcanic rocks 82902|82902|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic|||inferred||Triassic|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Triassic units' Tut.|Conglomerate, sandstone, basalt, tuff, shale.|sedimentary rock|igneous volcanic rock||N||27-AUG-23
sedimentary rock 42175|42175|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|||inferred|deposition|Upper Devonian|||inferred|||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Sandstone, conglomerate, siltstone, shale, quartzite; often ferruginous|siliciclastic sedimentary rock|||N||17-JAN-23
sedimentary rocks 39463|39463|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Carboniferous||||deposition|Devonian||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.|Undifferentiated clastic sediments; sandstone, conglomerate, siltstone, shale; also chert, schist, phyllite, slate, jasper, metabasites, amphibolite and limestone|siliciclastic sedimentary rock|||N||30-SEP-23
sedimentary rocks 72357|72357|sandstone 74489|74489|||Yes|Formation, beds|Unnamed|Unnamed published|Described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Lithology referring to an informal unnamed unit to be used for Australian 1:1 million geological map, National Maps Project. Also to be used for subsurface unit interpreted by Tony Meixner for the basement geology of the Exploring for the Future area. A more specific WA sandstone unit, used in 2010, was incorporated into this broader 'unit' in the 2012 Surface Geology.|Undifferentiated consolidated Cenozoic sedimentary rocks; sandstone, limestone, conglomerate, siltstone, coal, duricrust; commonly ferruginised or silicified; may be poorly consolidated, highly weathered, and dissected by present day drainage.|siliciclastic sedimentary rock|regolith||N||17-JAN-23
sedimentary rocks 82904|82904|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenomanian|||inferred||Norian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Mesozoic sedimentary rocks', MZus.Used in GA Solid Geology layer.|Sandstone, siltstone and mudstone.|siliciclastic sedimentary rock|||N||15-JUN-23
sedimentary rocks 82916|82916|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Devonian||||||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Devonian sedimentary rocks', Dus. Used in GA Solid Geology layer.|Shale, siltstone, quartzite, tuff and limestone.|sedimentary rock|||N||17-JAN-23
sedimentary rocks 82925|82925|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Ordovician|||inferred||Ordovician|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Ordovician sedimentary units', Ous (statewide), Out (Lachlan Orogen) . Used in GA Solid Geology layer.|Siltstone, phyllite, slate, sandstone, chert.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
sedimentary rocks 82931|82931|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Permian sedimentary rocks', Pus. Used in GA Solid Geology layer.|Sandstone, siltstone, mudstone, conglomerate.|sedimentary rock|||N||03-SEP-23
sedimentary rocks 82934|82934|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Permian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as `Ungrouped Palaeozoic sedimentary units', PZuc. Used in GA Solid Geology layer.|Shale, siltstone, quartzite, tuff and limestone.|sedimentary rock|||N||17-JAN-23
sedimentary, metamorphic and igneous rocks 82918|82918|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||inferred||Carboniferous|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Carboniferous units', Cus. Used in GA Solid Geology layer.|Sandstone, schist, phyllite, slate, chert, jasper, basalt, tuff and amphibolite; Limestone.|sedimentary rock|metamorphic rock||N||17-JAN-23
sediments - non-magnetic 78461|78461|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|||||Late Silurian||||||||No|69042||||||Used in: Hegarty, R. (2010) Geophysical - geological interpretation map of the basement lithologies in the Thomson Orogen region, NSW. IN Thomson Orogen; release of preliminary and provisional information, June 2010 [DVD]. Dck. Kopyje Group and possible equivalents.|||||N||17-JAN-23
sediments 39454|39454|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project. |Undifferentiated clastic sediments; conglomerate, sandstone, mudstone, shale, schist, phyllite, slate, greywacke, chert, jasper, hornfels, minor volcanics, limestone|siliciclastic sedimentary rock|||N||17-JAN-23
sediments 39471|39471|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cretaceous|||inferred|deposition|Cretaceous|||inferred|||||No|||||||Lithology referring to an unnamed unit to be used for Australian 1:1 million geological map, National Maps Project.|Sandstone, pebbly sandstone, conglomerate, mudstone, siltstone; crossbedded, rippled, graded; mesa and bench forming; may be ferruginised or silicified|siliciclastic sedimentary rock|||N||17-JAN-23
sediments 42018|42018|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Jurassic||||deposition|Upper Jurassic||||||||No|||||||Lithology referring to an unnamed unit to be used for the New South Wales 1:1 million geological map, National Maps Project.|Fine to coarse-grained, pebbly, quartz- and quartz-lithic sandstone, conglomerate, gravel, siltstone, mudstone; commonly ferruginised or silicified|siliciclastic sedimentary rock|||N||17-JAN-23
sediments 42025|42025|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neogene||||deposition|Cenozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for the Australia 1:1 million geological map, National Maps Project.|Undifferentiated sediments, sandstone, conglomerate, gravel, siltstone, mudstone, silcrete; commonly poorly consolidated, ferruginised or silicified; includes Armidale beds and Gibsonvale Formation|medium-coarse grained siliciclastic rock|||N||17-JAN-23
serpentinised mafic and ultramafic rocks 42190|42190|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Permian|||inferred||Cambrian|||inferred|||||No|||||||Lithology referring to an unnamed unit used for New South Wales 1:1 million geological map, National Maps Project. Also used in Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY, and in Mafic-Ultramafic Event Series dataset 2013. Used in GSNSW seamless geology dataset 2021 as `Ungrouped Palaeozoic serpentinite', PZus. Used in GA Solid Geology layer.|Serpentinite and associated rocks: serpentinised dolerite, gabbro, basalt, harzburgite, peridotite, norite and trondhjemite.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
serpentinite 78258|78258|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Also used in GSNSW seamless geology dataset 2021 as `Ungrouped Ordovician units - serpentinite?, Ouu_s. Used in GA Solid Geology layer.|Serpentinite, ultramafics.|metamorphosed ultramafic rock|||Y||11-SEP-23
serpentinite 78282|78282|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Serpentinite|metamorphosed ultramafic rock|||Y||17-JAN-23
serpentinite 78283|78283|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Note: stated age does not match map symbol used.|Serpentinite; minor metagabbro, metavolcanics, very minor chert, schist, diorite, chromitite|metamorphosed ultramafic rock|||Y||17-JAN-23
serpentinite 78284|78284|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Note: stated age does not match map symbol used.|Serpentinite bodies at depth. Inferred from geophysics.|metamorphosed ultramafic rock|||Y||17-JAN-23
serpentinite, mafics, ultramafics Pigna Barney 78232|78232|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Serpentinite, mafics, ultramafics; Olivine norite (amphibolitised)|metamorphosed ultramafic rock|basic intrusive rock||Y||17-JAN-23
serpentinite, pyroxenite 78285|78285|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||||Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW. Unnamed Serpentinite and Ultramafic Unit 1.|Serpentinite and pyroxenite|metamorphosed ultramafic rock|ultramafic intrusive rock||Y||17-JAN-23
silcrete 42026|42026|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for the Australian 1:1 million geological map, National Maps Project.|Silcrete, silicified gravel, siliceous duricrust, siliceous breccia; opaline silica, jasperoidal chalcedony, local chrysoprase caprock over ultramafic rock|regolith|||N||17-JAN-23
silcrete 75811|75811|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neogene|||||Paleogene||||||||No|43782||||||Silcrete, silicified gravel. Used on Bathurst 1:250, and Orange and Blayney 100k sheets. Age shown as Tertiary. GS NSW prefers to use 'residual deposits- silcrete' for this unit.|Silcrete, silicified gravel||||N||17-JAN-23
syenite #83908|83908|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Ordovician|||||Upper Ordovician||||||||No|||||||Used in GSNSW seamless geology dataset 2021, 22 as ‘Unassigned Ordovician intrusions - syenite', Oun_s. Used in GA Solid Geology layer.|Quartz syenite.||||Y||11-JUN-23
syenite #83909|83909|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|||||||Used in GSNSW seamless geology dataset 2021/22 as ‘Unassigned Devonian intrusions - syenite', map symbol Duu_h. Used in GA Solid Geology layer. This unit probably replaces 'quartz syenite stratno 39520.|Quartz syenite.||||Y||11-JUN-23
trachyte 39500|39500|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cenozoic|||inferred|eruption|Cenozoic|||inferred|||||No|||||||Central Queensland. Lithology referring to an unnamed unit to be used for Queensland 1:1 million geological map, National Maps Project. References: Moller 1965; Knutson, 1989a; Wellman 1978; Cohen et al. 2013.|Mainly trachyte; lesser felsic to mafic volcanics, intrusives and sediments.|intermediate volcanic rock|||N||17-JAN-23
trachyte 42176|42176|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Jurassic||||eruption|Jurassic||||||||No|||||||Lithology referring to an unnamed unit used for New South Wales 1:1 million geological map, National Maps Project. Also used for Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY and Geoscience Australia Mafic-Ultramafic Event Series dataset 2013.|Trachyte|intermediate volcanic rock|||N||17-JAN-23
trachyte 78237|78237|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous|||||Cretaceous||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Trachyte|intermediate volcanic rock|||N||17-JAN-23
trachyte, phonolite 75813|75813|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neogene|||||Paleogene||||||||No|43782||||||Trachyte, phonolite, nepheline microsyenite, volcaniclastic sediments, tuff. Used on Bathurst 1:250k and Molong, Orange, Cowra 100k sheets. Age shown as Tertiary.|Trachyte, phonolite, nepheline microsyenite, volcaniclastic sediments, tuff|intermediate volcanic rock|||N||17-JAN-23
ultramafic cumulates and lava 42020|42020|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Early Silurian||||intrusion|Upper Ordovician||||||||No|||||||Lithology referring to an unnamed unit used for the New South Wales 1:1 million geological map, National Maps Project. Also used for Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW and for  Mafic-Ultramafic Event Series dataset 2013, Geoscience Australia.|Ultramafic cumulates and lava|ultramafic intrusive rock|ultramafic volcanic rock||Y||17-JAN-23
ultramafic intrusives 42183|42183|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic||||intrusion|Neoproterozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Ultramafic intrusives|ultramafic intrusive rock|||Y||17-JAN-23
ultramafic, mafic rocks 78242|78242|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described||||||||||||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Shown as intrusive. NSW Western Division geological-geophysical basement interpretation map, 2012 SOLID GEOLOGY. Age unknown.|Undifferentiated ultramafic, mafic and magnetite bearing rocks|ultramafic intrusive rock|||Y||17-JAN-23
undetermined rocks 83110|83110|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Neoproterozoic rocks underlying the Kanmantoo Group. Probably from Cowley, W.M. (compiler).Solid Geology South Australia, Neoproterozoic to Ordovician Timeslice, 1:2 million, units NE1 and NO1, Undifferentiated Neoproterozoic to Cambrian metasediments, Neoproterozoic-Ordovician volcanics and mafic intrusives. May extend into NSW and VIC.|May include metasediments,  volcanics and mafic intrusives.|unknown|||U||17-JAN-23
undetermined rocks 83111|83111|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Neoproterozoic rocks underlying the Ponto Group. Probably from Cowley, W.M. (compiler).Solid Geology South Australia, Neoproterozoic to Ordovician Timeslice, 1:2 million, units NE1 and NO1, Undifferentiated Neoproterozoic to Cambrian metasediments, Neoproterozoic-Ordovician volcanics and mafic intrusives. Extended into NSW and possibly VIC.|May include metasediments,  volcanics and mafic intrusives.|unknown|||U||17-JAN-23
undetermined rocks 83112|83112|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Neoproterozoic rocks underlying the Teltawongee Group. Probably from Cowley, W.M. (compiler).Solid Geology South Australia, Neoproterozoic to Ordovician Timeslice, 1:2 million, units NE1 and NO1, Undifferentiated Neoproterozoic to Cambrian metasediments, Neoproterozoic-Ordovician volcanics and mafic intrusives. Extended into NSW and possibly VIC.|May include metasediments,  volcanics and mafic intrusives.|unknown|||U||17-JAN-23
undifferentiated Ordovician rocks 78254|78254|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|||||Ordovician||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Dawson M.W. and Glen R.A. 2006. Eastern Subprovince of the Lachlan Orogen Version 2 - Solid Geology and Mineral Deposits, 1:500 000 map. Geological Survey of NSW.|Metabasalt, basalt breccia, pillow lavas, amphibolite, chloritic schists, feldspathic sandstone, gabbro.|basic volcanic rock|high grade metamorphic rock||N||17-JAN-23
unnamed granitoids 42188|42188|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||Moonbi Supersuite|36465|Triassic||||intrusion|Permian||||||||No|||||||Lithology referring to an unnamed unit to be used for New South Wales 1:1 million geological map, National Maps Project.|Porphyritic, biotite-hornblende-clinopyroxene monzogranite, quartz monzonite and other granitoids|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
volcanic breccia 83132|83132|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Lopingian|||inferred||Lopingian|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer, DCD area. Used in GSNSW seamless geology dataset 2021 as Put_b 'Ungrouped Permian units - breccia pipes'. Interpreted intermediate volcanic plug/diatreme.|Interpreted intermediate volcanic plug/diatreme.|intermediate volcanic rock|||U||06-JUN-23
volcanic rocks 82915|82915|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Devonian|||inferred||Devonian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Devonian Volcanics', Duv. Used in GA Solid Geology layer.|Volcanic and volcaniclastic rocks including basalt, andesite, limestone,.rhyolite and rhyodacite.|igneous volcanic rock|||N||17-JAN-23
volcanic rocks 82933|82933|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Cisuralian|||inferred||Cisuralian|||inferred|||||No|||||||Used in GSNSW seamless geology dataset 2021 as 'Ungrouped Permian volcanic rocks, Puv. Used in GA Solid Geology layer.|Volcanic and volcaniclastic rocks inlcuding basalt, rhyolite, interbedded sedimentary rocks, mainly conglomerate.|igneous volcanic rock|||N||17-JAN-23
volcanics, mafic intrusives 78226|78226|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neogene||||eruption|Paleogene||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of New South Wales, New England Orogen Z56 seamless geology pre-release, 2012 SURFACE GEOLOGY.|Dolerite, syenite and trachyte|basic intrusive rock|intermediate volcanic rock||Y||17-JAN-23
