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
Aberfeldy Basalt|76934|Aberfeldy basalt|42|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Aquitanian|||isotopic, K/Ar|eruption|Oligocene||||||||No|66244||||||Originally named the Aberfeldy Province (Wellman 1974); a basalt flow from near Mount Gregory, preserved in remnants along the ridge from Aberfeldy to Beardsmore, then along three palaeovalleys from Rawson into the La Trobe Valley. Has a strong magnetic signature. Two K-Ar ages give an age of mid Oligocene, although degree of alteration suggests the flows could be older (Wellman, 1974).|Alkali olivine basalt with lesser olivine tholeiite and hawaiite, and minor interbedded sedimentary rocks.|basic volcanic rock|sedimentary rock||N||17-JAN-23
Acheron Volcanics|27690|Acheron Subgroup|81|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|35277||||||||acid volcanic 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
Addiscot Formation|36801|Addiscot Greywacke|114|||Yes|Formation, beds|Formal|Other new published name|Redefined|Demons Bluff Group|36796|||Chattian||||deposition|Late Eocene|||||||VIC|No|23778|23778|||||Of Torquay Basin|||||N||17-JAN-23
Adjie Granodiorite|37625|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G105. I type.|Highly magnetic, pale grey, medium to coarse grained, I-type hornblende granodiorite with minor pale pink K-feldspar|acid intrusive rock|||Y|I-type|17-JAN-23
Admiral Formation|30073|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Emperor Subgroup|32290|||Turonian||||deposition|Turonian||||||||No|13323||Partridge A.D.|12-FEB-96|||Within the Emperor Subgroup (Latrobe Group).|Fluvial sandstones and shallow lacustrine mudstones - blocky sandstones separated by shales.|siliciclastic sedimentary rock|||N||11-SEP-23
Agnes Formation|154|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Neogene||||deposition|Paleogene||||||||No|41868|||||||||||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
Albacore Subgroup|37365|||||Yes|Subgroup|Formal|Other new published name|Described|Seaspray Group|16717|||Miocene|||||Miocene||||||||No|23625||||||Offshore.|Marine carbonates and marine clastics.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Albert Park Aeolianite|225|||||Yes|Member, phase|Formal|Other new published name|Described|Bridgewater Formation|2543|||Lower Pleistocene|||||Lower Pleistocene||||||||No|41769||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Aeolianite|sediment|||N||17-JAN-23
Alberton A seam|83092|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Alberton Coal Measures|23325|||Miocene|||inferred||Oligocene|||inferred|||||No|73289||||||Coal seam in the Alberton Depression. Said to be  mostly equivalent to Morwell [Formation] seams; precisely which seams are not specified.|||||N||15-JUN-23
Alberton B seam|83093|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Alberton Coal Measures|23325|||Miocene|||inferred||Oligocene|||inferred|||||No|73289||||||Coal seam in the Alberton Depression. Said to be  mostly equivalent to Morwell [Formation] seams; precisely which seams are not specified.|||||N||23-MAY-23
Alberton C Seam|83094|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Alberton Coal Measures|23325|||Oligocene|||inferred||Eocene|||inferred|||||No|73289||||||Coal seam in the Alberton Depression. May be age-equivalent to some Traralgon [Formation] seams, particularly the Traralgon 0 Seam.|||||N||17-JAN-23
Alberton Coal Measures|23325|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Miocene|||inferred|deposition|Eocene|||inferred|||||No|38929||B.R.Thompson, G.Walker|14-DEC-81|||Coal seams in the Alberton Depression. Said to be mostly equivalent to Morwell [Formation] seams; precisely which seams are not specified. the lower seams (C and D) may be age-equivalent to some Traralgon [Formation] seams, particularly the Traralgon 0 Seam.|Includes two main coal seams - an upper A seam (55m thick) and lower B seam (15m thick); separated by a 12m clay split.|organic rich sedimentary rock|regolith||N||17-JAN-23
Alberton D Seam|83095|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Alberton Coal Measures|23325|||Oligocene|||inferred||Eocene|||inferred|||||No|73289||||||Coal seam in the Alberton Depression. May be age-equivalent to some Traralgon [Formation] seams, particularly the Traralgon 0 Seam.|||||N||17-JAN-23
Albion Formation|72620|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Saint Arnaud Group|23952|||Early Cambrian||||deposition|Early Cambrian|||biozone|deposition||210||No|68314||||||In the Central Lode hangingwall this formation has previously been referred to as the Mine Schist.|Interlayered black mudstone with minor siliceous siltstone and calcareous sandstone; base is characterised by strong chlorite+/-stilpnomelane alteration.|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
Alkemade Siltstone|275|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Pliocene||||deposition|Pliocene||||||||No|42591||||||Of Gill 1964. See Lexicon.|Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Allanvale Granodiorite|34781|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|22942||||||Unit name from unpublished thesis by P.J.Bird.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Allwood Granodiorite|35957|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Llandovery|434|3|isotopic, K/Ar|intrusion|Llandovery|434|3|isotopic, K/Ar|||||No|23309||||||G566. Age and lithology updated from GSV data (HG, Dec 2005). Intruded by Guys Forest Granodiorite. Replaces Pheasant Creek Granite only on the CORRYONG sheet.|Nonmagnetic, pale to medium grey, fine to medium grained, S-type, two-mica cordierite granodiorite; locally foliated; sparse enclaves|acid intrusive rock|||Y|S-type|17-JAN-23
Almonds Granite|328|Bungeet Granite|35155|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Replaces original Bungeet Granite from Geology of Victoria Ed.1. Fig 11.1. Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age updated from GSV data (HG, Dec 2005). GSV code: G207|Biotite granite; coarse grained and porphyritic with K-feldspar phenocrysts to 15 mm; contains cordierite and accessory fluorite; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Alpine Road pluton|69700|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian|||||Lower Devonian||||||||No|61170||||||Subsurface pluton. Geological Survey of Victoria map code: G565.|||||Y||17-JAN-23
Altona Coal Seam|337|||||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|Werribee Formation|29131|||Paleogene||||deposition|Paleogene||||||||No|60083||||||Referred to as 'Altona brown coal beds' by Herman (1922). Senior synonym of Parwan Seam of Thomas & Baragwanath (1950) and Maddingley Coal Seam of Edwards (1950).||organic rich sedimentary rock|||N||17-JAN-23
Amberley Park Volcaniclastic Member|35958|Amberly Volcaniclastic Member|29952|||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Buchan Caves Limestone|2750|||Lower Devonian||||eruption|Lower Devonian||||||15||No|60542||VandenBerg, A.H.M.|08-MAY-01|||ORBOST map sheet. Part of the Buchan Group.|Thin band of andesitic volcaniclastics.|igneous volcanic 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
Anakie Eastern Hill Complex|73146|Newer Volcanic Group|38291|||Yes|Group, Suite|Informal|Other new published name|Briefly described||||||||||||||||||No|61896||||||Not to be confused with Anakie nomenclature in Queensland/NSW.|Consists of a scoria cone with late-stage radial dykes resting on a hydroclastic ring structure.|basic volcanic rock|||N||17-JAN-23
Anderson Creek Formation|419|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Murrindindi Supergroup|35522|||Wenlock||||deposition|Llandovery||||||2300||No|33598||||||Also known as 'Springfield Sandstone' . Upper section equivalent to part of the redefined Dargile Formation.|Marine mudstone, turbiditic sandstone, mass-flow conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Anemone Formation|32293|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Golden Beach Subgroup|32307|||Campanian||||deposition|Santonian||||||||No|13323||Partridge A.D.|02-FEB-98|||Age: latest Santonian to Campanian. Within the Golden Beach Subgroup (Latrobe Group).|Predominantly sequences of interbedded shales and sands in varying percentages.|siliciclastic sedimentary rock|||N||11-SEP-23
Angahook Formation|434|Angahook member|436|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Demons Bluff Group|36796|||Oligocene|28.7|.2|isotopic, Ar/Ar, step heat|deposition|Eocene||||||||No|70942||||||Was replaced by Angahook Member for a while, but Formation seems to be current preferred name [CEB Aug2015]|Sandstone, conglomerate, claystone, basalt, tuff, breccia and pyroclastics.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Angler Subgroup|37366|||||Yes|Subgroup|Formal|Other new published name|Described|Seaspray Group|16717|||Miocene|||||Oligocene||||||||No|23625||||||Within the Latrobe Valley Subgroup (Seaspray Group).|Marine carbonates.|carbonate sedimentary rock|||N||17-JAN-23
Anglers Rest Granite|442|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian|395|16|isotopic, K/Ar|intrusion|Lower Devonian|400|16|isotopic, K/Ar|||||No|39860||||||Within Omeo Metamorphic Complex. Intruded Bingo Munjie Quartz Diorite; intrusive contact with Hinno Munjie Granite and Ludrik Munjie Granite. GSV code: G114. Age and lithology updated from GSV data (HG, Dec 2005). See also Knocker Granite.|Weakly magnetic, pink, medium- to coarse-grained, leucocratic, I-type biotite-muscovite granite with no xenoliths|acid intrusive rock|||Y|I-type|17-JAN-23
Anglesea Formation|444|Anglesea Siltstone|449|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Demons Bluff Group|36796|||Oligocene||||deposition|Late Eocene||||||50|VIC|No|34991|23778|||||Of Torquay Basin. See also Anglesea Sand.|Siltstone and shale.|fine grained siliciclastic rock|||N||17-JAN-23
Angry Hill Sandstone|24159|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Romsey Subgroup|37591|||Floian||||deposition|Tremadocian|||||||VIC|Yes|40136|42826|VandenBerg, A.H.M.|04-JUL-79|Vic SNSC|26-SEP-79||Sandstone, siltstone, black shale: sandstone mostly thick-bedded; minor black chert: thinly bedded; conglomerate: pale coloured; fine-grained; mostly of rounded vein quartz pebbles; with horizontal lamination and tabular cross-bedding.|siliciclastic sedimentary rock|||N||17-JAN-23
Angusvale Diorite|459|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|23710||||||See also Angusvale Diorite"". Middle Devonian?|Diorite|intermediate intrusive rock|||Y||17-JAN-23
Ararat Granodiorite|533|Ararat granodiorite|535|||Yes|Formation, beds|Formal|Variation of published name|Described|||Ararat Suite|28331|Lower Devonian|383|5|isotopic, K/Ar|intrusion|Lower Devonian|401|4|isotopic, U/Pb|||||No|30579||||||GSV Code: G380. I-Type. Supersedes Ararat Granite and Ararat Adamellite. Age and lithology updated from GSV data (HG, Dec 2005). Use of prefix 'Ararat' may be invalid for this Victorian granite nomenclature (granite, Suite and Supersuite) as Ararat Sandstone and Ararat Formation was published as early as 1969, 1973, 1974, etc. in NSW.|Hornblende-biotite granodiorite: pale grey; porphyritic; equigranular; fine to medium grained; miarolitic cavities, symplectic intergrowth textures suggest shallow intrusion level; oxidised, I-type, moderately magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Ararat Suite|28331|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Ararat Supersuite|68374|Lower Devonian|||||Lower Devonian||||||||No|42827||||||Use of prefix 'Ararat' may be invalid for this Victorian granite nomenclature (granite, Suite and Supersuite) as Ararat Sandstone and Ararat Formation was published as early as 1969, 1973, 1974, etc. in NSW.||acid intrusive rock|||Y||17-JAN-23
Archie Granodiorite|30509|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|19-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G531|Strongly magnetic, grey, medium- to coarse-grained, biotite-minor hornblende granodiorite; massive, scattered hornblende crystals to 12mm long|acid intrusive rock|||Y|I-type|17-JAN-23
Aringa Volcanics|594|Aringa Volcanic Formation|592|||Yes|Formation, beds|Formal|Resvd name published|Mentioned|||||Oligocene||||eruption|Oligocene||||||||No|41701|||||||||||N||17-JAN-23
Armstrong Sand|620|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Bridgewater Formation|2543|||Holocene||||deposition|Holocene||||||||No|34993||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Sand|sediment|||N||17-JAN-23
Arte Gabbro|642|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Arte Suite|75779|Wenlock||||intrusion|Wenlock||||||||No|42827|60541|||||GSV Code: G38.  Of Beams and Hough (1979). Intrusive within the Kuark Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005). See also Arte River Gabbro of other authors. To be included in the Arte Suite in the Seamless Geology of Eastern Victoria. Consists of 4 unnamed phases (hornblende gabbro, gabbro, tonalite and mylonite) (Morand OCT-2010)|Separate parts are: central largely undeformed, medium-grained hornblende orthopyroxene gabbro - surrounded by fine- to medium-grained hornblende gabbro; with small body of tonalite in SE. Highly magnetic; magnetics indicate two intrusive phases.|basic intrusive rock|||Y|I-type|17-JAN-23
Arte Gabbro - gabbro phase 79679|79679|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Arte Gabbro|642|Wenlock||||intrusion|Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G38a.|Hornblende gabbronorite: coarse-grained; highly magnetic; I-type|basic intrusive rock|||Y|I-type|05-SEP-23
Arte Gabbro - hornblende gabbro phase 79680|79680|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Arte Gabbro|642|Wenlock||||intrusion|Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G38b.|Hornblende gabbro; medium grained, some with a tectonic foliation; I-type|basic intrusive rock|||Y|I-type|05-SEP-23
Arte Gabbro - mylonite phase 79682|79682|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Arte Gabbro|642|Wenlock||||intrusion|Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G38d.|Hornblende mylonite and amphibolite; plagioclase-hornblende-magnetite rock; I-type intrusive|metamorphosed basic igneous rock|high grade metamorphic rock||Y|I-type|05-SEP-23
Arte Gabbro - tonalite phase 79681|79681|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Arte Gabbro|642|Wenlock||||intrusion|Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G38c.|Hornblende tonalite: medium-grained; consists of plagioclase, quartz, hornblende and minor biotite; I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Arte Suite|75779|Arte Gabbro Suite|69209|||Yes|Group, Suite|Informal|Variation of published name|Mentioned|||||Early Silurian|||||Early Silurian||||||||No|68115||Morand, V. (GSV)|19-OCT-10|||Includes the Arte Gabbro and the Scrubby Flat Gabbro. To be used in the Seamless Geology of Eastern Victoria.|||||Y||17-JAN-23
Arthurs Seat Rhyodacite|77887|Arthurs Seat Complex|650|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Upper Devonian||||eruption|Middle Devonian||||||||No|68116||||||Apparently a variation on the (not current) Arthurs Seat Dacite (unit no. 651). Is listed (and therefore current ?) in 2011 Surface Geology of Victoria (RefID 68116).|Hornblende rhyodacite and dacite, biotite rhyodacite: rhyodacite porphyritic with phenocrysts of perthitic orthoclase and oligoclase; dacite porphyritic with phenocrysts of quartz, hornblende, oligoclase and minor biotite.|acid volcanic rock|||N||17-JAN-23
Arundel Formation|677|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Pleistocene||||deposition|Pleistocene||||||||No|71203|||||||||||N||17-JAN-23
Ashwin Siltstone Member|74891|Ashwin Siltstone|69618|||Yes|Member, phase|Formal|Variation of reserved name|Described|Snowy Plains Formation|17054|||Mississippian||||deposition|Mississippian||||||||No|64606||||||Reserved as Ashwin Siltstone (Vandenberg 2005).|Mudstone, minor sandstone: alluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Attunga Paringa Formation|34838|||||Yes|Formation, beds|Formal|Other new published name|Described|Avonmore Subgroup|34825|||Pragian||||deposition|Lochkovian||||||320||No|22968||||||Type location given in Willman et al (1999) GSV Report 118. Part of the Snowy River Volcanics.|Fluvial sediments: Breccia, conglomerate, sandstone, pebbly sandstone: poorly bedded, with poor to fair sorting; variable rounding; lithic clasts predominant and include volcanics, slate, granite; sandstone generally feldspathic to arkosic.|siliciclastic sedimentary rock|||N||17-JAN-23
Aughaderry Tonalite|37626|Nine Mile Tonalite|37627|||Yes|Formation, beds|Formal|Other new published name|Described|||Nine Mile Suite|41779|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||New name taken from Aughaderry State Forest.  Highly magnetic (to 250 nT); variable radiometric response, K, Th and U each dominating in some areas (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende tonalite: fine grained, yellowish grey; weakly porphyritic in plagioclase; I-type; strongly magnetic |acid intrusive rock|||Y|I-type|17-JAN-23
Avon Supergroup|35960|Avon River Group|796|||Yes|Supergroup|Formal|Variation of published name|Fully described|||||Tournaisian|||||Givetian||||||||No|61187||||||To conform with stratigraphic nomenclatural requirements,  the formal name should be Avon River Supergroup. Previously shown as in both NSW and Vic. This seems unlikely. Not related to Avon Subgroup in NSW Sydney Basin/ Gloucester Basin.|Sandstone, conglomerate, acid volcanics. Basalt: black to greenish, commonly amygdaloidal; alteration common with abundant chlorite.|siliciclastic sedimentary rock|igneous volcanic rock||N||01-AUG-23
Avonmore Subgroup|34825|||||Yes|Subgroup|Formal|Other new published name|Described|Snowy River Volcanic Group|28138|||Lower Devonian||||deposition|Lower Devonian||||||700||No|22968||||||New subgroup of the Snowy River Volcanics|Subaerial felsic ignimbrite, fluvial conglomerate, sandstone, mudstone|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Awaiti Granite|41187|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Late Cambrian||||intrusion|Middle Cambrian||||||||No|50160|50154|||||Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Muscovite-biotite granite: foliated to massive, buff, medium grained, porphyritic with phenocrysts of microcline and quartz; local schlieric foliation; metasedimentary enclaves common near northern margin; non-magnetic.|acid intrusive rock|||Y||17-JAN-23
Bacchus Marsh Formation|839|Bacchus Marsh Beds|838|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Cisuralian||||deposition|Carboniferous||||||1100||No|39865|50154|||||Of Roberts (1984, 1985). Introduced as Bacchus Marsh sandstones by McCoy (1861). Wild Duck Formation is considered to be a junior synonym.|Glacial deposits: tillite; silty diamictite, diffusely stratified, moderately consolidated to unconsolidated; varved clay.|siliciclastic sedimentary rock|||N||17-JAN-23
Bairnsdale Limestone|899|Bairnsdale Limestone Member|897|||Yes|Formation, beds|Formal|Variation of published name|Described|Seaspray Group|16717|||Tortonian||||deposition|Langhian||||||||No|70995|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Bald Hill Volcanic Complex|31143|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Pleistocene||||eruption|Pleistocene|1.64||isotopic, K/Ar|||23.5||No|43493||||||Radiometric K-Ar Age: 1.64Ma. Name may be invalid if Tasmania has priority with its Bald Hill Complex.|Basaltic extrusives.|basic volcanic rock|||N||17-JAN-23
Bald Hills Creek Tonalite|34843|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ensay Suite|34902|Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|I-type, Biotite-hornblende tonalite: grey; medium to coarse-grained; equigranular; porphyritic in euhedral hornblende; rare microgranitoid enclaves; patchy chlorite, epidote and hematite alteration|acid intrusive rock|||Y|I-type|17-JAN-23
Baldhead Igneous Complex|34911|||||Yes|Subgroup|Formal|Other new published name|Described|||Rileys Creek Suite|34904||||||||||||||No|22968||||||See also Mount Baldhead Granodiorite and Mount Baldhead Igneous Complex.|||||Y||17-JAN-23
Ballan Volcanics|73147|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|61896||||||See also the informal Ballan basalt.|||||N||17-JAN-23
Ballantyne Megabreccia|35961|Ballantyne Gap Megabreccia|23354|||Yes|Formation, beds|Formal|Variation of published name|Described|Berrmarr Subgroup|21238|||Pragian||||deposition|Lochkovian||||||300||No|23615||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area. See also Ballantyne Gap Megabreccia.|Megabreccia: volcanic and minor granite blocks (up to 30m across), in a pebbly mudstone matrix, intrusive rhyolite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Ballark Conglomerate|23355|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Cretaceous|||inferred, geological correlation|deposition|Lower Cretaceous|||||||VIC|No|38159|37385|P.Bolger|09-NOV-77|||Name introduced in Bolger (1977) GSV Report  54. Age revised to Cretaceous in 2009.|Conglomerate, minor sandstone: pebble to boulder conglomerate; massive; clasts predominantly of Ordovician sandstone with minor vein quartz pebbles; sandstone medium to coarse-grained; cross-bedded; with occasional pebbles.|siliciclastic sedimentary rock|||N||17-AUG-23
Bally Hooley Ignimbrite|21183|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||500||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Ballyhooley Granite Chappell et al (1991) is probably not related. Murrindal area.|Feldspar ignimbrite: up to 5% quartz, variable crystal content; pyroclastic deposits.|acid volcanic rock|||N||17-JAN-23
Ballyrogan Granite|21184|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granite: pale cream, felsic, fine grained; granophyric intergrowths between quartz and feldspar; aggregates of muscovite and of tourmaline scattered throughout; trace amounts of garnet |acid intrusive rock|||Y||17-JAN-23
Balmattum Basalt|76928|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Euroa Volcanic Group|76925|||Miocene|||inferred, geological correlation|eruption|Miocene|||inferred, geological correlation||||VIC|No|66244||||||Occupies a small area near Balmattum, Euroa area. Description and analysis in Paul et al. (2005). Type location is the Balmattum quarry, around MGA 383000-5839400; the rock appears as a black fine-grained mafic rock with dark spots on weathered faces. Asumed to be similar age to Seven Creeks Basalt (~6.8 Ma).|Dark grey, basanite to alkali basalt; euhedral olivine phenocrysts 1 - 5 mm across in a groundmass of clinopyroxene prisms, magnetite cubes and minor interstitial glass; minor analcite after nepheline and red-brown biotite; amygdales common.|basic volcanic rock|||N||17-JAN-23
Balmoral Pegmatite|1002|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|42889|||||||Pegmatite|igneous intrusive rock|||Y||17-JAN-23
Balook Formation|24171|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Latrobe Valley Subgroup|39333|||Miocene||||deposition|Oligocene||||||500|VIC|Yes|37530||B.R.Thompson|14-DEC-81|||Definition dated 19-NOV-1981. Of the Latrobe Valley Subgroup (Seaspray Group).|Fluvial-deltaic and paralic deposits:barrier sand and clay.|regolith|siliciclastic sedimentary rock||N||17-JAN-23
Bambra Sandstone|72930|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neogene||||deposition|Cenozoic||||||||No|61186||||||May be a commercial name only?|Hard, cream micaceous dimension stone found at Airey's Inlet; not ferruginised as are some of the Tertiary sandstones therefore pale in colour; bedded, micaceous quartzose sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bandts Granite|30358|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|23165||Moore D.|09-AUG-96|||Buried pluton, identified through magnetostratigraphy.|Granite|acid intrusive rock|||Y||17-JAN-23
Banimboola Quartz Monzodiorite|35970|Banimboola Quartz Granodiorite|69257|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian|388|4|isotopic, K/Ar|intrusion|Lower Devonian|406|6|isotopic, K/Ar|||||No|60503||||||Probably superseded Banimboola Granite? Intrusive rocks within Omeo Metamorphic Complex. Intrudes both Pinnak Sandstone and Dartmouth Granite. GSV Code: G110. Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende-biotite-clinopyroxene quartz monzodiorite, quartz diorite in part: greenish grey, equigranular, medium-grained; intensely magnetic; I-type.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Banksia Chert Member|1066|||||Yes|Member, phase|Formal|Other new published name|Fully described|Blueys Creek Formation|2013|||Sandbian||||deposition|Sandbian||||||||No|41570|||||||Thin-bedded chert; contains conodont fossils|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Banoon Member|32305|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Flaxman Formation|6733|||Coniacian||||deposition|Turonian||||||||No|12796||Partridge A.D.|02-FEB-98|||Age: late Turonian or early Coniacian.|Sedimentary ironstone characterised by abundant authigenic and partly oolitic chamosite and goethite.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Baranduda Granite|28253|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Middle Devonian|388|4|isotopic, K/Ar|intrusion|Lower Devonian|||||||VIC|Yes|38879||R.King|23-MAR-82|||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G176.|I-type granite; biotite-muscovite granite: grey, medium grained, equigranular.|acid intrusive rock|||Y|I-type|17-JAN-23
Barangaroo Ignimbrite|35971|||||Yes|Formation, beds|Formal|Other new published name|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||||No|23309|50154||||||Quartz-feldspar ignimbrite: crystal- and lithic-poor; fiamme foliation, rare fragmented crystals and a densely welded matrix of relict glass shards at base; rheomorphic flow banding and minor autobrecciation.|acid volcanic rock|||N||17-JAN-23
Baringhup Granodiorite|1102|||||Yes|Formation, beds|Formal|Other new published name|Described|||Harcourt Suite|8070|Upper Devonian|367|2||intrusion|Upper Devonian|368|2|isotopic, K/Ar|||||No|31654||||||See also the misspelt and informally name Barringhup Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G293. Intrudes the Harcourt Granodiorite and Castlemaine Group.|Moderately magnetic, leucocratic, fine- to medium-grained, slightly porphyritic, oxidised, I-type biotite granodiorite with minor mafic enclaves.|acid intrusive rock|||Y|I-type|17-JAN-23
Barjarg Granite|1107|Barjarg granite|1108|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Tolmie Igneous Complex|26950|Strathbogie Suite|25496|Upper Devonian|363|7||intrusion|Upper Devonian|367|3||||||No|70933||||||Part of the Tolmie Igneous Complex. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G216|Dark orange biotite-cordierite granite with minor muscovite; fine to coarse grained; even grained to porphyritic - the latter contains large garnet and plagioclase phenocrysts; accessory tourmaline and garnet; very weakly- to non-magnetic.|acid intrusive rock|||Y|S-type|17-JAN-23
Barmouth Group|32559|Koomberar Group|31416|||Yes|Group, Suite|Formal|Resvd name published|Described|||||Pridoli|||||Pridoli||||||||No|22968||Willman C.E.|13-JAN-98|||Omeo 1:100 000 sheet area (8423).  Type section in Willman et al (1999) GSV Report 118.|Marine sedimentary rocks.|sedimentary rock|||N||17-JAN-23
Barnawartha Gneissic Granodiorite|26370|Barnawartha Granite|35151|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pridoli||||intrusion|Llandovery||||||||No|70910||||||GSV Code: G182.  Supersedes Barnawatha Gneissic Granodiorite, Barnawartha Granite and Lady Franklin Granite. Age and lithology updated from GSV data (HG, Dec 2005).|Granodiorite: foliated, medium grained, biotite-rich; interleaving boundary with gneiss country rock; pegmatite dykes common.|acid intrusive rock|||Y|S-type|17-JAN-23
Baroona Diorite|37628|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||V-type? Diorite: high potassium, altered; magnetite giving some responses from secondary alteration; subsurface only (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005)|Diorite: medium grained; strongly magnetic, with reversely magnetised portion in the southeast.|intermediate intrusive rock|||Y||17-JAN-23
Barrabilly Granite|37629|Barrabilly Adamellite|30560|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|23615||||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-cordierite granite, fine to medium grained; dark grey; S-type |acid intrusive rock|||Y|S-type|17-JAN-23
Barracouta Formation|1156|Barracouta Beds|1155|||Yes|Formation, beds|Formal|Variation of published name|Described|Halibut Subgroup|32294|||Eocene||||deposition|Campanian||||minimum depositional age||||No|35273||||||Part of Alan Partridge's Halibut Subgroup (Latrobe Group). Not to be confused with Barracouta Formation (WA) which has also been used in NT. The Gippsland Basin (Vic.) unit has priority.|Coarse-grained, partly conglomeratic, lithic arenites intercalated with occasional mudstone intervals; minor coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||11-SEP-23
Barrakee Granite|35972|||||Yes|Formation, beds|Formal|Other new published name|Described|||Coonooer Suite|37536|Lower Devonian||||intrusion|Lower Devonian||||||||No|60491||||||Note incorrectly listed as S-type granite in Geology of Victoria (2003) and Charlton 100K map legend. Age updated from GSV data (HG, Dec 2005). GSV Code: G340. Why "incorrectly"? Still listed as S-type in Surface Geology of Victoria 1:250 000 (2011), and does contain cordierite and is reduced.|Hornblende-bearing I-type granite. Other entry has cordierite-biotite granite: S-type, reduced; pale grey, medium grained.|acid intrusive rock|||Y|S-type|17-JAN-23
Barrama Microgranite|41191|Barrama Microadamellite|37255|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||intrusion|Late Cambrian||||||25||No|50160|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Grey-buff, fine grained, biotite microgranite: massive, porphyritic with phenocrysts of microcline, quartz, biotite and plagioclase; accessory muscovite and magnetite; magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Barringo Granodiorite|1187|Barringo Granite|1186|||Yes|Formation, beds|Formal|Variation of published name|Described|Macedon Igneous Complex|10936|Barringo Suite|1188|Upper Devonian||||intrusion|Lower Devonian||||||||No|70999||||||Name introduced in Singleton (1967). GSV Code: G282.  See also the informal Barringo Granite. Age and lithology updated from GSV data (HG, Dec 2005).|I-type granodiorite with red-brown biotite, garnet, pyrrhotite and metasedimentary enclaves|acid intrusive rock|||Y|I-type|17-JAN-23
Barringo Suite|1188|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Harcourt Supersuite|31528|Upper Devonian|||||Middle Devonian||||||||No|42827|||||||||||Y||17-JAN-23
Barry Mountains Granite|1220|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G159|Oxidised I-type granite|acid intrusive rock|||Y|I-type|17-JAN-23
Barwo Member|1227|Barwo Sand Member|1228|||Yes|Member, phase|Formal|Other new published name|Briefly described|Shepparton Formation|25474|||Quaternary||||deposition|Quaternary||||||18||No|35091||||||Defn card held for Barwo Sand Member.|Unconsolidated to poorly consolidated, feldspathic and micaceous sand and clayey sand; light brown, reddish brown and grey in colour; fine sand to gravel sized and often showing upward fining cycles. Cross-bedding sometimes occurs.|sediment|||N||17-JAN-23
Barwon River Conglomerate|77303|Barwon River Member|69217|||Yes|Formation, beds|Formal|Variation of published name|Described|Otway Group|14685|||Albian||||deposition|Albian||||||||No|65715||||||Previously referred to as Barwon River Member of Eumeralla Formation by Constantine and Liberman (2001). Previously included in Barrabool (or Barrarbool) Sandstone by Spencer-Jones (1963) and others.|Conglomerate and minor sandstone with clasts of hornfels, rotten gabbro and rotten granite, with a matrix of mostly granitic sand.|siliciclastic sedimentary rock|||N||17-JAN-23
Bass Camp Ignimbrite|21202|||||Yes|Formation, beds|Formal|Resvd name published|Described|White Monkey Volcanic Group|68411|||Lower Devonian||||eruption|Lower Devonian||||||||No|23615||VandenBerg A.H.M., Orth K.|22-MAR-89||||Quartz-pink feldspar ignimbrite: red with large pumice fragments; occasional cavities.|acid volcanic rock|||N||17-JAN-23
Bass Megasequence|41024|||||Yes|Clan|Sequence stratigraphy|Sequence strat published|Described|||||upper Malvacipollis diversus|51.5||biozone||Tricolporites lilliei|78|||||||No|14235||||||Age: Campanian - Ypresian (Late Cretaceous - Early Eocene).||siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Batesford Limestone|27329|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Torquay Group|18441|||Aquitanian||||deposition|Oligocene|||||||VIC|No|71437||||||After the 'Batesford limestone' of Hall & Prichard (1892). Bass Basin. Torquay and Port Phillip Basins. Name traces back to Hall & Prichard (1896). Senior synonym of Waurn Ponds Limestone used by Spencer-Jones (1970), and Upper and Lower Maude Limestone of Bowler (1963). Appears to under- and overlie Maude Basalt. Type locality is Batesford limestone quarry.|Two lithologies: soft calcarenite of sand-sized fragments of marine fossils, white when fresh,  weathering to yellow/yellow-brown; and a harder limestone (Moorabool Stone) of closely packed foraminifer tests; hardness due to carbonate cementation.|carbonate sedimentary rock|||N||17-JAN-23
Bats Ridge Member|78701|||||Yes|Member, phase|Formal|Other new published name|Defined|Bridgewater Formation|2543|||Pleistocene|.319|.04|luminescence|deposition|Pleistocene|.344|.04|luminescence||||VIC|Yes|73386||Lipar, M. (La Trobe University)|19-FEB-14|Vic SNSC||Lithological Descriptor = aeolian calcarenite. Map Sheet = SJ5407. Nearest Town = Cape Bridgewater. Brief description = A fine to coarse grained well sorted aeolianite. It is grey to yellow coloured, uncemented to well cemented. It has distinctive cross-bedding. In general it contains carbonate, quartz, and minor amount of feldspar. Deposited in Marine Isotope Stage 7. To be published = 2014 or 2015, most probably in Australian Journal of Earth Sciences|Grey to yellow coloured, moderately to well cemented, fine to coarse grained, well sorted limestone (calcarenite) with distinctive aeolian cross-bedding.|carbonate sedimentary rock|||N||24-JUN-23
Batty Spur Granite|37630|Big River Granite|1595|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Wenlock||||intrusion|Silurian||||||||No|23309|||||| Age updated from GSV data (HG, Dec 2005).|I-type Granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Baw Baw Granodiorite|26374|Baw Baw granodiorite|1275|||Yes|Formation, beds|Formal|Variation of published name|Described|||Tynong Suite|18760|Upper Devonian|369|13||intrusion|Upper Devonian|369|13||||||No|32001||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G236|Equigranular, medium-grained, biotite-hornblende granodiorite; I-type intrusive rock. Intruded by magnetic dykes.|acid intrusive rock|||Y|I-type|17-JAN-23
Bayliss Spur Tonalite|32561|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Swifts Creek Igneous Complex|34974|||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||Willman C.E.|13-JAN-98|||Age and lithology updated from GSV data (HG, Dec 2005).|Tonalite: green to grey; medium to coarse-grained; minor pegmatitic leucogranite and hornblendite |acid intrusive rock|||Y||17-JAN-23
Baynton Granodiorite|1286|Cobaw Granite|26484|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Harcourt Suite|8070|Upper Devonian|347|7|isotopic, K/Ar|intrusion|Upper Devonian|359|7|isotopic, K/Ar|||||No|41850|64612|||||See also Baynton Granite. Age updated from GSV data (HG, Dec 2005). Previously of Cobaw Suite.|Nonmagnetic, medium-grained, equigranular granodiorite with quartz, K-feldspar, biotite + hornblende; also porphyritic phase.|acid intrusive rock|||Y|I-type|17-JAN-23
Baynton Granodiorite - porphyritic phase 79677|79677|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Baynton Granodiorite|1286|Upper Devonian|||||Upper Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G284a.|Biotite granodiorite with minor hornblende and euhedral phenocrysts of plagioclase and K-feldspar up to 20 mm long; locally with large crystals of biotite; numerous sedimentary and igneous enclaves; nonmagnetic I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Bealiba Granodiorite|36977|Bealiba Granite|24703|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|23603||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G353|Biotite granodiorite: coarse grained, marginal strongly porphyritic phase contains K-feldspar up to 2 cm; local porphyritic microgranodiorite; includes pegmatite and aplite; local hydrothermal alteration: I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Bear Gully Chert Bed|35516|||||Yes|Bed|Formal|Resvd name published|Briefly described|||||Lancefieldian||||deposition|Cambrian||||||||No|23309||VandenBerg A. H. M.|22-MAY-00|||To be used in the Tasman Fold Belt System in Victoria Special Publication. See also Bear Gully Chert, Bear Gully Gritstone.|Chert|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Beaufort Formation|21209|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Saint Arnaud Group|23952|||Late Cambrian||||deposition|Cambrian|520|||||1500||No|43260||Cayley R.|23-JUN-94||||Marine turbiditic interbedded siltstone & mudstone with minor sandstone; mudstone is thin-bedded, pyritic; slightly higher regional magnetic response than other sediments; gravity response mostly moderate to high; high K, moderate to high Th, U.|siliciclastic sedimentary rock|||N||17-JAN-23
Beaumaris beds|1342|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described||||||||||||||||||No|32687||||||Probably the same as the Black Rock Sandstone.|||||N||17-JAN-23
Beauvallet Granodiorite|32493|Cobaw Granodiorite|4252|||Yes|Formation, beds|Formal|Other new published name|Defined|||Harcourt Suite|8070|Upper Devonian|359|7|isotopic, K/Ar|intrusion|Upper Devonian|363|7|isotopic, K/Ar|||||No|44197|64612|||||GSV Code: G285. Age and lithology updated from GSV data (HG, Dec 2005). See also more recent records for Cobaw Granite, Cobaw granite, including age of 376 +/- 2 Ma; Bierlein et al. (2001b)[ RefID 67968, AJES 59(4), p495-525, Phillips et al 2012]. Previously of Cobaw Suite.|I-type granodiorite. Biotite-hornblende granodiorite, medium to coarse-grained, varying from equigranular to porphyritic, with qtz and feld phenocrysts.|acid intrusive rock|||Y|I-type|17-JAN-23
Beckworth Suite|1351|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Upper Devonian|||||Upper Devonian|370|||||||No|42827|||||||Metaluminous granites and granodiorites.|acid intrusive rock|||Y|I-type|17-JAN-23
Bee Tree Granodiorite|26377|||||Yes|Formation, beds|Formal|Other new published name|Described|||Ocean View Suite|37587|Wenlock||||intrusion|Llandovery||||||||No|42627||||||GSV Code: G33. Within the Kuark Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Foliated, medium grained biotite, muscovite granodiorite; S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Beechworth Granite|1381|Beechworth Adamellite|1380|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Beechworth Suite|31572|Upper Devonian|369|15|isotopic, K/Ar|intrusion|Middle Devonian|377|12|isotopic, K/Ar|||||No|37029||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G195|Leucocratic biotite granite: medium grained, equigranular; accessory muscovite.|acid intrusive rock|||Y||17-JAN-23
Beechworth Suite|31572|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian|||||Middle Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Beehive Granite|34710|Beehive Adamellite|1385|||Yes|Formation, beds|Formal|Variation of published name|Described|||Coolangubra Suite|31461|Lower Devonian||||intrusion|Llandovery||||||||No|22878||||||GSV Code: G21. Age and lithology updated from GSV data (HG, Dec 2005).|Pink, coarse grained, leucocratic, biotite granite; massive except on faulted margin, texturally variable with finer grained and megacrystic areas|acid intrusive rock|||Y|I-type|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
Begg Creek Basalt|75954|Older Volcanics|14540|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleogene|||inferred, geological correlation|eruption|Paleogene|||inferred, geological correlation|||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||This basalt was formerly labelled Older Volcanic Group. It includes the basalt cap near Club Terrace lying on the ridge that Begg Creek Track traverses, near the head of Begg Creek, as well as outliers southwest and northeast of Combienbar that appear to be the same flow.|Tholeiite with phenocrysts of plagioclase, olivine and augite in a groundmass of plagioclase, pyroxene and brown glass|basic volcanic rock|||N||17-JAN-23
Belfast Mudstone|1415|Belfast Mudstone Member|1413|||Yes|Formation, beds|Formal|Other new published name|Defined|Sherbrook Group|16826|||Santonian||||deposition|Turonian||||||1362|VIC|No|48581|48581|||||Of McQueen, A.F. (1961)? This rank preferred in SA (Revisions to Stratigraphic Nomenclature of the Otway Basin, South Australia. GSSA Quarterly Notes 116 (1990)). Was first nominated as a member of the Paaratte Formation by Bock and Glenie (1965); however Reynolds (1971) reinstated formation status.|Glauconitic dark mudstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Bell Point Limestone|27334|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Murrindindi Supergroup|35522|||Lower Devonian||||deposition|Lower Devonian||||||40||No|43532||||||A lungfish jaw and placoderm plates discovered (K.S.W. Campbell and J.A. Long, pers. comm). This unit also contains conodonts and microvertebrates of late Pragian age.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Bell Point Limestone, Waratah Limestone|37669|||||Yes|Subgroup|Informal|Variation of published name|Mentioned|||||Pragian||||deposition|Pragian||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Bell Point Limestone and Waratah Limestone.|Marine limestone|carbonate sedimentary rock|||N||18-SEP-23
Bellarine Volcanic Group|72699|Older Volcanics|14540|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Miocene|||inferred, overlying unit|eruption|Miocene|22.5|.5|isotopic, K/Ar||||VIC|No|65715||VandenBerg, A. (GSV)|16-NOV-06|VandenBerg, F.|16-NOV-06|Forms what was formerly the Older Volcanics on Bellarine Peninsula which juts into Port Phillip Bay. It has yielded a K/Ar age of 22.5 +/- 0.5 Ma from basalt (?where does this data come from?)[Murraduc Basalt?], and a tuff belonging to it [Clifton Springs Tuff?] is overlain by Miocene marl. Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p14, 15.|Basalt lavas and mafic tuffs.|basic volcanic 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
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
Beloka Gap Granite|30286|Marengo Granite|11290|||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60507||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Formerly informally called Marengo Gap Porphyry and Marengo Granite. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granite: grey, strongly porphyritic in quartz and feldspar, miarolitic cavities often lined with smoky quartz: A-type.|acid intrusive rock|||Y|A-type|17-JAN-23
Bemboka Supersuite|1449|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|42827||||||||acid intrusive rock|||Y|I-type|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 Major Granite|37632|Ben Major Adamellite|34429|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenlogie Suite|7426|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G368|Pale grey, medium grained, hornblende-biotite monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Ben Nevis Granite|23373|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Middle Devonian|391|5|isotopic, K/Ar|intrusion|Lower Devonian||||||||No|42726||Cayley R.|21-JUN-93|||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G374|Pale grey to cream, porphyritic biotite granite, contains dykes, pegmatite and quartz veins prevalent; small miarolitic cavities|acid intrusive rock|||Y|I-type|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
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
Bennies Formation|69710|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tolmie Igneous Complex|26950|||Upper Devonian||||eruption|Upper Devonian||||||||No|61174||||||Geological Survey of Victoria map code: Dtb.|Ignimbrite with variable, usually high, phenocryst content, commonly coarse-grained, with biotite and/or garnet, lesser intercalated conglomerate with well rounded vein quartz pebbles and lesser basement pebbles; minor sandstone and red mudstone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Bentleys Plain Granodiorite|34905|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Type locality location given in Willman et al (1999) GSV Report 118. Age and lithology updated from GSV data (HG, Dec 2005)|I-type, Granodiorite: grey; coarse-grained equigranular; moderate biotite foliation; occasional igneous enclaves have diffuse margins |acid intrusive rock|||Y||17-JAN-23
Berrawan Conglomerate|34880|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount Tambo Group|26773|||Pragian||||deposition|Ludlow||||||||No|60503||||||Type section location given in Willman et al (1999) GSV Report 118. Basal unit of the Mount Tambo Group.|Alluvial fan deposits comprising cobble conglomerates with minor coarse greywackes and pebbly greywackes and minor mudstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Berrigama Granodiorite|37633|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23309||||||G571, I-type.|I-type Granodiorite|acid intrusive rock|||Y|I-type|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
Berrimal Granite|1525|||||Yes|Formation, beds|Formal|Other new published name|Described|||Coonooer Suite|37536|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Moderately magnetic (to 60 nT); radiometric response dominated by Th response although the K response is also higher than the nearby bedrock, U response is low (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G358|Deeply weathered, medium grained, I-type, granite; biotite-hornblende intergrowths|acid intrusive rock|||Y|I-type|17-JAN-23
Berringama Granodiorite|37871|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|24145||||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite: dark grey, medium grained; equigranular, mainly weakly to moderately foliated; I-type; nonmagnetic|acid intrusive rock|||Y|I-type|06-SEP-23
Berrmarr Subgroup|21238|||||Yes|Subgroup|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Lower Devonian||||eruption|Lower Devonian||||||||No|43206||K.Orth|05-JUN-87|||Murrindal area.|Extrusive, fluvial: felsic ignimbrite, megabreccia, minor rhyolite lava.|acid volcanic rock|||N||17-JAN-23
Besford Ignimbrite|30290|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Garden Creek Igneous Complex|75778|||Emsian|400|7|isotopic, K/Ar|eruption|Emsian|400|9|isotopic, U/Pb|||500||No|60503||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Benambra 1:100 000 sheet area.  Part of the Cravensville Igneous Province. Formerly part of the Dartella Volcanic Group. Included in the Garden Creek Igneous Complex in the Seamless Geology of Eastern Victoria.|Coarse-grained red quartz-biotite ignimbrite; abundant biotite. Subaerial rhyolitic ignimbrite.|acid volcanic rock|||N||17-JAN-23
Bete Bolong Granodiorite|1539|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|38367||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G57. Since replaces the Granite, should also be part of Bete Bolong Suite.|Grey-green, medium to coarse grained, I-type, hornblende granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Bete Bolong Suite|1540|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian|||inferred, isotopic correlation||Late Silurian|||inferred, intrusive relationship|||||No|42827||||||Age from constituents. Most shown as Wenlock - Early Devonian, but Feltis Farm Tonalite dated as 369+/-4Ma in 1995.|||||Y||17-JAN-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
Bethgarno Amphibolite|77281|Bethgarno Gneiss|1547|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Silurian|||||Silurian||||||||No|68115||||||Formerly Bethgarno Gneiss (O'Shea 1976, 1979); called Spring Creek Amphibolite by Steele (1979) and Bolger (1984). Name is now changed to distinguish it from other gneisses in the region which are all quartzofeldspathic. The name Bethgarno has precedence.|Finely banded amphibolite gneiss with hornblende-, biotite-, and quartz-feldspar-rich layers; contains hornblende, biotite, plagioclase, quartz and minor K-feldspar, and cummingtonite-quartz-plagioclase layers; variably foliated with mylonitic bands.|high grade metamorphic rock|||N||17-JAN-23
Betka Granodiorite|1549|Betka Granite|1548|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Betka Suite|31529|Lower Devonian||||intrusion|Lower Devonian||||||||No|41850||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G8|Coarse grained, inequigranular hornblende granodiorite with large K-feldspars commonly rimmed with albite|acid intrusive rock|||Y|I-type|17-JAN-23
Betka Suite|31529|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Kameruka Supersuite|9187|Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Graniet, Granodiorite|acid intrusive rock|||Y||17-JAN-23
Big Hill Quartz Diorite|1591|Blue Gums Tonalite|1987|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Big Hill Suite|69708|Lower Devonian|397|11|isotopic, K/Ar|intrusion|Lower Devonian|401|16|isotopic, K/Ar|||||No|70910||||||Geological Survey of Victoria map code: G152. FEATHERTOP 1:50 000. Age updated from GSV data (HG, Dec 2005). GSV Code: G152. Intrudes Cobungra Granite and parts of Omeo Metamorphic Complex.|Hornblende-biotite quartz diorite: grey; coarse grained; equigranular; I-type; Biotite tonalite; grey, medium grained; equigranular.|acid intrusive rock|||Y|I-type|17-JAN-23
Big Hill Quartz Diorite - quartz diorite phase 79666|79666|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Big Hill Quartz Diorite|1591|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G152a.|Hornblende-biotite quartz diorite: grey; coarse grained; equigranular; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Big Hill Quartz Diorite - tonalite phase 79667|79667|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Big Hill Quartz Diorite|1591|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G152b.|Biotite tonalite; grey, medium grained; equigranular.|acid intrusive rock|||Y||17-JAN-23
Big Hill Suite|69708|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Devonian|||||Lower Devonian||||||||No|61166||||||Formerly called the Big Hill Series by Fagan (1979). Contains just one pluton, the Big Hill Quartz Monzodiorite.|I-type granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Big Valley Granodiorite|1603|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Upper Devonian|||inferred, geochemical correlation|intrusion|Middle Devonian||||||||No|42154||||||Of the Tabberabbera Province. Very small. Low initial Sr ratios suggest affinities with Murmungee Granodiorite, so similar age assumed (~370-380Ma).|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Bimmarn Ignimbrite|21254|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Pragian||||eruption|Pragian||||||50||No|43206||Orth K.|06-MAY-91|||Murrindal area.|Feldspar ignimbrite: dark with white euhedral feldspar phenocrysts.|acid volcanic rock|||N||17-JAN-23
Bindaree Formation|37525|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wellington Volcanic Group|37613|||Frasnian||||deposition|Frasnian||||||700||No|66252|66252|||||Yields the richest Devonian fish fauna in the southern hemisphere.  Of the Wellington Volcanics Group|Volcanogenic conglomerate and sandstone, black shale, green mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bindi Granodiorite|26393|Bindi Granite|1678|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bullenbalong Supersuite|2897|Lower Devonian|400|6|isotopic, K/Ar|intrusion|Silurian||||||||No|38145||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G121|Nonmagnetic, pale grey, medium grained, S-type biotite granodiorite and granite; massive; small biotite-rich enclaves common, enclaves of gneiss locally abundant|acid intrusive rock|||Y|S-type|05-SEP-23
Bingo Munjie Quartz Diorite|34834|Bingo Munjie Granite|37526|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Bingo Munjie Suite|34913|Pragian||||intrusion|Ludlow|417|7|isotopic, U/Pb|||||No|60503||||||Intruded by Anglers Rest Granite at northern end. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite quartz diorite: medium grained; dark green; epidote alteration; mafic enclaves common: I-type|acid intrusive rock|||Y|I-type|05-SEP-23
Bingo Munjie Suite|34913|||||Yes|Group, Suite|Formal|Other new published name|Described|||Boggy Plain Supersuite|2092|Lochkovian|||||Lochkovian||||||||No|60503|||||||Granite, diorite, tonalite.|acid intrusive rock|||Y||17-JAN-23
Bird Rock Member|1712|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Waratah Limestone|19435|||Lower Ordovician||||deposition|Lower Ordovician||||||||No|43530|||||||Includes well bedded greyish brown dolomitic limestone and dolomite - generally fossiliferous.|carbonate sedimentary rock|||N||17-JAN-23
Black Mountain Ignimbrite|1802|Black Mountain Rhyodacite|1803|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Berrmarr Subgroup|21238|||Pragian|||inferred, overlying unit|eruption|Pragian|||inferred, underlying unit|||750||No|41585|||||||Quartz-feldspar ignimbrite: granular with large phenocrysts and abundant lithic clasts.|acid volcanic rock|||N||17-JAN-23
Black Range Granodiorite|28217|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|32074||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G223|Porphyritic granite, porphyritic granodiorite, medium-grained granodiorite, porphyritic microgranodiorite.|acid intrusive rock|||Y|S-type|17-JAN-23
Black Range greenstone|83839|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|73118||||||Not related to 'Black Range' units in NSW or WA.|Basaltic to andesitic meta-volcanics; greenschist facies and moderately to highly deformed.|metamorphosed basic igneous rock|||N||04-AUG-23
Black Satin Ignimbrite|21264|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Marroo Subgroup|22271|||Pragian||||eruption|Pragian||||||500||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area.|Granular, brown to dark green quartz-feldspar ignimbrite with strongly welded vitricastic matrix.|acid volcanic rock|||N||17-JAN-23
Blackfellows Flat Conglomerate|34889|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount Tambo Group|26773|||Pragian||||deposition|Ludlow|416|5|isotopic, U/Pb-Pb/Pb ion probe|||1400||No|60504||||||after Lew (1979). See also Blackfellows Flat Formation. Radiometric age from basal Vitric Ignimbrite Member.|Conglomerate, sandstone, pebbly sandstone, mudstone: clasts well rounded, sandstones with high felsic volcanic component. Formation fines upward.|siliciclastic sedimentary rock|||N||17-JAN-23
Blackwatch Volcaniclastic Member|1872|Blackwatch Formation|23392|||Yes|Member, phase|Formal|Variation of published name|Fully described|Bungywarr Formation|3028|||Emsian||||eruption|Pragian||||||350||No|41585|||||||Volcaniclastics|igneous volcanic rock|||N||17-JAN-23
Blair Atholl Granite|41183|Blair Atholl Adamellite|37256|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Middle Cambrian||||intrusion|Middle Cambrian||||||||No|50160|50154|||||Of the Glenelg River Metamorphic Complex?  "adamellite" of Kemp et al. (2002) has been replaced with "granite" in line with modern terminology by Morand et al. (2003), article: 50154. Age and lithology updated from GSV data (HG, Dec 2005)|Pale tan biotite-muscovite granite: foliated, coarse grained leucocratic, equigranular; accessory garnet; rare biotite-rich microgranitoid enclaves; enclaves of migmatite and biotite-rich schlieren common near southern margin; magnetic.|acid intrusive rock|||Y|S-type|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
Blanchetown Clay, Bungunnia Limestone|39003|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Quaternary||||deposition|Quaternary||||||||No|||||||Informal grouping of units to be used for Victoria 1:1 million geological map, National Maps Project.|Poorly consolidated to friable well laminated greenish-grey red-brown silty sandy calcareous and gypsiferous clay, well-cemented flaggy dolomitic limestone|regolith|||N||17-JAN-23
Blue Gum Suite|31520|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Glenbog Supersuite|7362|Lower Devonian|||||Lower Devonian||||||||No|42726||||||Is this Suite still in use by GSV? [CEB Nov-2016]|Tonalite and granites.|acid intrusive rock|||Y||17-JAN-23
Blue Gum Tonalite|23395|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Supersuite|7362|Lower Devonian|398|2|isotopic, K/Ar|intrusion|Llandovery||||||||No|41850||VandenBerg A.H.M., Orth K.|22-MAR-89|||Glenbog Supersuite. Porphyritic, weakly foliated. I-Type.  See also the informal Blue Gum Granite, and misspelt Blue Gums Tonalite.  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G26|Highly to moderately magnetic, greenish grey, medium to coarse grained, weakly foliated, biotite-hornblende tonalite; hornblende crystals to 12mm long, abundant mafic inclusions|acid intrusive rock|||Y|I-type|17-JAN-23
Blue Gum Tonalite - felsic phase 79676|79676|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|||Blue Gum Tonalite|23395|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G26b.|Biotite-hornblende tonalite (felsic phase): greenish grey, medium to coarse grained, weakly foliated; hornblende crystals to 12 mm long, abundant mafic enclaves; I-type|acid intrusive rock|||Y||17-JAN-23
Blue Gum Tonalite - mafic phase 79675|79675|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Blue Gum Tonalite|23395|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G26a.|Biotite-hornblende tonalite (mafic phase): greenish grey, medium to coarse grained, weakly foliated; hornblende crystals to 12 mm long, abundant mafic enclaves; I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Blue Rag pluton|41777|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|61169||VandenBerg, F.|13-SEP-04|||Subsurface pluton. Geological Survey of Victoria map code: G470.|Subsurface pluton.|igneous intrusive rock|||N||17-JAN-23
Blue Range Formation|1999|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Taggerty Subgroup|17652|||Upper Devonian|367|2|inferred, overlying unit|deposition|Middle Devonian||||||120||No|35277||||||Lacustrine unit interbedded in the volcanics of the Marysville Igneous Complex. Type locality of the Taggarty-Howitt fish fauna is in this unit, near Taggerty, Victoria. Age constrained by isotopically dated rhyolites giving a minimum age of 367 +/- 2 Ma (William et al, 1982).|Lacustrine sediments|sediment|||N||17-JAN-23
Blue Shirt Rhyolite Member|2005|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Thorkidaan Volcanics|18080|||Ludlow||||eruption|Ludlow||||||||No|41585|||||||Rhyolite|acid volcanic rock|||N||17-JAN-23
Blueys Creek Formation|2013|Bluey's Creek Formation|2012|||Yes|Formation, beds|Formal|Variation of published name|Described|Kiandra Group|27446|||Gisbornian||||eruption|Gisbornian||||||||No|41585||||||Murrindal area. Place name in Victoria uses both forms (see Gazetteer) - but this name is in current use in Geology of VICTORIA (Birch 2003) PP.  Previously assigned to the Bendoc Group. Geological Province: Limestone Creek Graben.|Deep marine deposits: contains turbidites derived from an andesitic, volcanic source; thinly bedded chert, andesitic to basaltic sandstone turbidites, slate, mudstone, quartz sandstone and dacite to andesitic sills and lavas.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Bluff Member|2018|Bluff member|24738|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Bell Point Limestone|27334|||Lower Devonian||||deposition|Lower Devonian||||||80||No|43530|||||||Hard, thick-bedded, fossiliferous, dark grey limestone.|carbonate sedimentary rock|||N||17-JAN-23
Bochara Limestone Member|2057|Bochara Limestone|2058|||Yes|Member, phase|Formal|Unknown or process pending|Described|Port Campbell Limestone|15462|||Serravallian||||deposition|Langhian||||||||No|35066||||||Was replaced by Bochara Limestone for a while, but the Member appears to be preferred in 2011 [CEB Aug 2015].|Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Bodman Creek Formation|23399|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||deposition|||||||||No|38929||G.Walker|31-AUG-82||||Comprise sands and clays.|sediment|||N||17-JAN-23
Boebuck Granodiorite|2067|Pinnabar Adamellite|38855|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|60078||||||Named by Talent (1967), but also referred to as Pinnibar Adamellite by Wyborn et al (1987). Hornfels aureole -  Early Devonian granite intruding lower greenschist grade Pinnak Sandstone. Age and lithology updated from GSV data (HG-DEC2005). GSV Code: G90|I-type, pale grey, medium grained hornblende granodiorite; pale pink and beige, medium grained porphyritic diorite with large phenocrysts of pinkish yellow plagioclase; common enclaves of feldspar porphyry|acid intrusive rock|||Y|I-type|17-JAN-23
Boebuck Granodiorite - highly magnetic phase 79695|79695|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Boebuck Granodiorite|2067|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G90b.|Hornblende granodiorite: pale grey, medium grained; I-type; intensely magnetic; forms a ring-shaped feature in the magnetic image|acid intrusive rock|||Y|I-type|17-JAN-23
Boebuck Granodiorite - magnetic phase 79694|79694|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Boebuck Granodiorite|2067|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G90a.|Hornblende granodiorite: pale grey, medium grained; I-type; highly to intensely magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Boebuck Granodiorite - porphyritic diorite phase 79696|79696|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Boebuck Granodiorite|2067|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G90c.|Porphyritic diorite: pale pink and beige; medium grained, large phenocrysts of pinkish yellow plagioclase; common blebby enclaves of feldspar porphyry; I-type; highly magnetic|intermediate intrusive rock|||Y|I-type|17-JAN-23
Boebuck Granodiorite - porphyritic phase 79697|79697|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Boebuck Granodiorite|2067|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G90d.|Porphyritic granite: pale pink and beige; medium grained, rich in K-feldspar; nonmagnetic|acid intrusive rock|||Y||17-JAN-23
Boggy Creek Sandstone|37529|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Ninnie Subgroup|36861|||Pragian||||eruption|Pragian||||||||No|60542|||||||Mass flows of crystal-vitric "sandstone". Consists largely of pyroclastics - lithic-rich feldspar ignimbrite.|acid volcanic rock|||N||17-JAN-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
Bogong Creek beds|2100|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|23710||||||See the superseded Bogong Creek Beds for Definition - the term  'beds' is preferred. Unit occurs in both Victoria and NSW.|||||N||17-JAN-23
Boisdale Formation|27716|Boisdale Beds|2112|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Sale Group|16557|||Pliocene||||deposition|Middle Miocene|14.5|||||200||No|32375|||||||Clays and sands.|regolith|||N||17-JAN-23
Bola Sandstone Member|26410|Bola Creek Formation""|2117|||Yes|Member, phase|Formal|Resvd name published|Fully described|Bungywarr Formation|3028|||Pragian||||deposition|Pragian||||||||No|41585|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Bolinda Shale|24743|||||Yes|Formation, beds|Formal|Other new published name|Defined|Sunbury Group|33256|||Upper Ordovician||||deposition|Upper Ordovician||||||500|VIC|No|40136|42826||||||Black shale, siltstone, sandstone: thinly bedded; black shale and siltstone coarse-grained; micaceous; often richly graptolitic; sandstone pale grey; fairly well sorted; fine to medium-grained; sequences.|fine grained siliciclastic rock|||N||11-SEP-23
Bolinda Shale, Darraweit Guim Mudstone|37684|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Ordovician||||deposition|Ordovician||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Bolinda Shale and Darraweit Guim Mudstone.|Marine black shale, siltstone, sandstone, calcareous mudstone|fine grained siliciclastic rock|||N||17-JAN-23
Bolwarra-Gorae Diatomite|2147|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Pleistocene|||||Pliocene||||||||No|34988|||||||Diatomite|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Bonang Granodiorite|23404|Bonang Granite|2154|||Yes|Formation, beds|Formal|Variation of published name|Described|||Currowong Suite|5085|Wenlock||||intrusion|Llandovery||||||||No|42627||VandenBerg, A.H.M.|08-FEB-89|||Mentioned as Bonang Granitoid in Gray et al (1988) - Geology of Victoria Fig.1.10.  See also the informal Bonang Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G82|I-type, hornblende-biotite granodiorite|acid intrusive rock|||Y|I-type|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
Bonita Sandstone Member|68350|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Volador Formation|32295|||Maastrichtian||||deposition|Maastrichtian||||||||No|13323||||||Within the Volador Formation (Emperor Subgroup, Latrobe Group). A much-reproduced stratigraphic diagram by Bernecker and Partridge (2001) suggests this unit is of the Barracouta Formation.|Interbedded sandstone, siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Bonlta Sandstone Member|39338|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Volador Formation|32295|||Maastrichtian||||deposition|Maastrichtian||||||||No|24090|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-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
Boola Formation|2211|Boola Beds|24747|||Yes|Formation, beds|Formal|Other new published name|Defined|Jordan River Group|9028|||Pragian||||deposition|Lochkovian|||||200|900|VIC|No|33601|33601|||||Includes part of the obsolete Coopers Creek Formation (not the Lst).|Siltstone, lithic sandstone, conglomerate, limestone lenses; deep-marine deposits; Dark to bright red and red-green in RGB.  Nonmagnetic.|siliciclastic sedimentary rock|||N||07-SEP-23
Boonawah|79010|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Early Cambrian|||||Neoproterozoic||||||||No|||Cayley, R. (GSV)|15-JAN-15|||Hamilton map sheet area 7322. Ultramafic-mafic igneous rocks. Igneous stratigraphy - serpentinite and tholeitic volcanics - of probable Neoproterozoic-Early Cambrian age, encountered in drillholes intersecting a concealed belt of magnetic rocks. Possibly correlates of the Dimboola Igneous Complex. Where to be published = 2015, in a GSV technical report published to accompany mapping for the Willaura Copper project.|||||Y||17-JAN-23
Boorabal Andesite|21295|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||150||No|43206||Orth K.|06-MAY-91|||Murrindal area.|Consists of andesite lava, lenses of basalt lava and breccia with minor intercalated sediments.|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Boorgunyah Granite|69406|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||intrusion|Early Silurian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G170. Age and lithology updated from GSV data (HG, Dec 2005).|S-type. Medium-grained, equigranular, muscovite-biotite leucocratic granite with weak foliation and small clots of biotite-muscovite up to 2cm.|acid intrusive rock|||Y|S-type|17-JAN-23
Boorhaman Conglomerate|2277|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Cisuralian||||deposition|Pennsylvanian||||||176||No|41637|||||||Glaciomarine and fluvial, diamictite, sandstone, mudstone, conglomerate.|siliciclastic sedimentary rock|||N||02-SEP-23
Boulder Flat Limestone|2376|Boulder Flat Carbonate Formation""|2374|||Yes|Formation, beds|Formal|Variation of published name|Defined|Errinundra Group|28537|||Emsian||||deposition|Pragian|||||||VIC|No|40761|42647||||||Limestone: massive, dark grey, recrystallized to stylobrecciated; black shale; minor dolomite.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bouma B beds|24756|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|41590|||||||||||N||17-JAN-23
Bouma C beds|28392|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|41590|||||||||||N||17-JAN-23
Boundary Creek Conglomerate|2387|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Little River Subgroup|22204|||Pragian||||deposition|Lochkovian||||||100||No|34519||||||Murrindal area.|Red conglomerate, gritstone and pebbly sandstone, red siltstone, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bourka pluton|83445|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G652. Magnetic response to 150 nT but with nonmagnetic core; gravity response about 50 micrometres/second/second.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Bowen Track Ignimbrite|21305|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|White Monkey Volcanic Group|68411|||Lower Devonian||||eruption|Ludlow||||||600||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area.|Quartz-feldspar ignimbrite. Coarse, abundant white feldspar and large quartz grains set in a welded black glassy groundmass. Aggregates of feldspar are common. Minor small felsic lava or sedimentary lithics, occasional pumice clasts.|acid volcanic rock|||N||17-JAN-23
Bream Volcanics|39335|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lutetian||||eruption|Lutetian||||||||No|13323||||||Associated with Barracouta Formation.|Basaltic volcanics|basic volcanic rock|||N||17-JAN-23
Bridgewater Bay Sands|24764|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Holocene||||deposition|Holocene||||||||No|34988||||||Not the same as Bridgewater Formation.|Dune limestone of Mount Gambier coastal plains|carbonate sedimentary rock|||N||17-JAN-23
Bridgewater Formation|2543|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Pleistocene||||deposition|Pleistocene|.69|||||15|VIC|No|23818|42966|||||Defined by Boutakoff and Sprigg (1953). Defined for the Otway Basin.  Upper and lower members are differentiated with detailed lithology on MAITLAND (but unnamed) - the upper member has age of ~1-0.2Ma and merges with the Glanville Formation. KINGSCOTE Special (2008) map shows 3 mainly calcarenite unnamed members. Raised to Group in 1981, but reinstated as Formation in Victoria in RefID 66002 and 65715 (2009).|Poorly consolidated yellow pinkish-brown fine to coarse fossiliferous calcareous sand, calcarenite. Locally capped by calcrete. As coastal beach and associated aeolian dune. Forms stranded series of elongated beach ridges, subparallel to present coast|carbonate sedimentary rock|regolith||N||17-JAN-23
Bridgewater Granite|2545|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Devonian||||||||No|42726||||||Briefly described. Formal name not intended. Not related to Bridgewater Formation in SA.|Granite: peraluminous, high-Na chemistry. Contains hornblende, sphene and allanite or monazite, and strongly magnetic phases.|acid intrusive rock|||Y||17-JAN-23
Bridle Track Granodiorite|35859|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|23332|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Brimboal Granodiorite|41182|Meissen Granodiorite|29548|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Cambrian||||intrusion|Early Cambrian||||||||No|50160|50154|||||Of the Glenelg River Metamorphic Complex? Age and lithology updated from GSV data (HG, Dec 2005)|Bluish-grey biotite-hornblende granodiorite: foliated to massive, medium to coarse grained, equigranular; occasional biotite-rich microgranitoid enclaves; accessory magnetite; magnetic.|acid intrusive rock|||Y||17-JAN-23
Bringalbert Gabbro|37530|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Paleozoic||||intrusion|Early Cambrian|524|9|isotopic, U/Pb|||||No|23309||||||Age: 524+/-9Ma (SHRIMP U/Pb).  New name (Maher, et al, 1997). Named after Lake Bringalbert. Age updated from GSV data (HG, Dec 2005)|Gabbro|basic intrusive rock|||Y||17-JAN-23
Brissces Hut Andesite|21330|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||eruption|Early Cambrian||||||||No|61187||VandenBerg, A.H.M.|07-SEP-94||||Andesite lava, clinopyroxene-phyric; marine.|intermediate volcanic rock|||N||17-JAN-23
Broadford Formation|27348|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Lower Devonian|||inferred, biostratigraphic correlation|deposition|Ludlow|||inferred, underlying unit|||2000||No|60083|61185|||||Interfingers with Humevale Siltstone. Earp (2015) Roy Soc Vic 127, 7-16 has identified Early Devonian fossils in this unit.|Medium- to thickly-bedded, massive quartz arenite and quartz-litharenite with current ripples, and polymictic conglomerate; interbedded with thinly bedded fine-grained turbiditic sandstone, siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Broadmeadows Granite|72936|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|61186||||||Probably a trade name for a diimension stone. Also referred to as Bulla (Broadmeadows) Granite.||acid intrusive rock|||Y||17-JAN-23
Brodribb Granodiorite|23423|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Currowong Suite|5085|Lochkovian|414|3||intrusion|Pridoli||||||||No|41850||VandenBerg, A.H.M.|08-FEB-89|||See also the informal Brodribb Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G49|Biotite granodiorite: medium grained, greyish blue; I-type.|acid intrusive rock|||Y|I-type|05-SEP-23
Broken Leg Granite|37634|Pinnak Granite|15269|||Yes|Formation, beds|Formal|Other new published name|Described|||Pinnak Suite|31625|Lower Devonian||||intrusion|Late Silurian||||||||No|60542||||||GSV Code: G46. Age and lithology updated from GSV data (HG, Dec 2005).  Note that parent suite name (Pinnak Suite) is probably invalid due to priority of Pinnak Sandstone.|Weathered, grey-green, medium-grained, I-type, hornblende-biotite granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Brookville Granite|32563|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Swifts Creek Igneous Complex|34974|||Lower Devonian||||intrusion|Late Silurian||||||||No|22968||Willman C.E.|13-JAN-98|||Omeo 1:100 000 sheet area (8423). Age and lithology updated from GSV data (HG, Dec 2005)|Granite: pale pink to cream; medium-grained; massive; minor dark coarse-grained hornblendite and quartz diorite on southern and western margins, I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Brothers Syenite|41868|The Brothers|29953|||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Leinster Igneous Complex|26764|||Upper Triassic||||intrusion|Middle Triassic|232|5|isotopic, K/Ar|||||No|60507||||||Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite syenite: grey, coarsely porphyritic in the south and northeast, equigranular in the northwest; phenocrysts are orthoclase: A-type|intermediate intrusive rock|||Y|A-type|17-JAN-23
Brucknell Member|34698|Brucknell Formation|2698|||Yes|Member, phase|Formal|Variation of published name|Described|Mepunga Formation|11654|||Rupelian||||deposition|Late Eocene||||||36||No|61182|||||||Dark brown, carbonaceous clayey silt to silty clay, often burrowed; richly fossiliferous in places.|fine grained siliciclastic rock|||N||17-JAN-23
Brumby Mafic Arenite Member|2706|||||Yes|Member, phase|Formal|Variation of published name|Described|Blueys Creek Formation|2013|||Sandbian||||deposition|Darriwilian||||||||No|41570|||||||Black cherty slate/mafic arenite turbidite.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Brunton Avenue Breccia Member|2725|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|29982|||||||Breccia|sedimentary rock|||N||17-JAN-23
Bryan Creek Granodiorite|37257|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Late Cambrian||||intrusion|Late Cambrian|||||150|200||No|24012|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granodiorite: foliated, grey, medium grained, porphyritic with phenocrysts of plagioclase and alkali feldspar; accessory sillimanite; foliation defined by aligned biotite, muscovite, and micaceous selvedges; sporadic enclaves of schist|acid intrusive rock|||Y||17-JAN-23
Bryce Plain Basalt|75714|Older Volcanic Group|39878|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Oligocene||||eruption|Eocene||||||||No|66244||Cayley, R. (GSV)|16-JUN-10|||Warburton 1:250k sheet area SJ55-6, near Mansfield. This unit occupies much of the Howitt Province of Wellman (1974) and Price et al. (2003). Consists mainly of erosional remnants on the Mount Howitt - Mount Tamboritha plateau. Published in GeoScience Victoria seamless geological dataset and associated metadata, planned for publication in July 2010. Age from Wellman (1974).|Alkali olivine basalt, minor olivine tholeiite, minor  hawaiiite: lava flows and plugs, interbedded sedimentary rocks. Dense, blue-black, rarely vesicular, typically strongly jointed|basic volcanic rock|sedimentary rock||N||17-JAN-23
Bryo Gully Shale|24199|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Romsey Subgroup|37591|||Floian||||deposition|Tremadocian||||||240|VIC|Yes|40136|42826|A.H.M.VandenBerg, H.E.Wilkinson|14-JUN-78|Vic SNSC|26-SEP-79||Siltstone, shale: black; generally thin-bedded; siliceous in basal portion; contains sporadic graptolites.|fine grained siliciclastic rock|||N||17-JAN-23
Buangor Granite|23429|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Lower Devonian|372|2|isotopic, U/Pb|intrusion|Lower Devonian||||||||No|42726||Cayley R.|21-JUN-93|||See also informal Buangor granite. Reservation requested by A. VandenBerg. BD in Chappell et al (1991). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G377.|Pale grey to pink, porphyritic, hornblende-biotite, I-type granite; granophyric intergrowths common; rare mafic clots|acid intrusive rock|||Y|I-type|17-JAN-23
Buchan Caves Limestone|2750|Buchan Caves limestone|2752|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buchan Group|2754|||Emsian|||biozone|deposition|Pragian|||biozone|||295||No|44215||||||Formerly called Cave Limestone (Teichert, 1948; Hill, 1950). Superseded in Bendoc area by Boulder Flat Limestone. See also Lexicon.|Predominantly calcarenites and calcisiltites with dolomites and dolomitic limestones.|carbonate sedimentary rock|||N||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
Buckeran Diorite|24200|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Bushy Creek Igneous Complex|73823|Late Cambrian|495|2|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion|Middle Cambrian|502.1|2.9|||||VIC|Yes|40172|40887|G.L.Buckland|08-FEB-82|||Defined 10-JUN-1982. Approval requested 12-OCT-1982. Age (name) and lithology updated from GSV data (HG, Dec 2005) G394. I-Type. Titanite U-Pb age originally said to be of a dacite from greenstone east of the Buckeran Diortite (Whelan et al 2007), but stated to be for Buckeran Diorite in Lewis et al.(2015).|Hornblende-biotite diorite with clinopyroxene cores to the hornblende and rare orthopyroxene; medium to coarse grained, equigranular. The pluton is mostly magnetic, with a non-magnetic core..|intermediate intrusive rock|||Y|I-type|05-SEP-23
Buckeran Diorite - nonmagnetic phase 79683|79683|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Buckeran Diorite|24200|Late Cambrian|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G394a.|Weakly to non-magnetic phase of Buckeran Diorite; not exposed. ?Diorite.|intermediate intrusive rock|||Y||17-JAN-23
Buckrabanyule Granite|2804|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian|398|6|isotopic, K/Ar|intrusion|Lower Devonian|407|6|isotopic, K/Ar|||||No|42726||||||Briefly described. Formal name not intended.  nonmagnetic; K, Th and U responses all higher than surrounds (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G336|Nonmagnetic, medium grained,  S-type cordierite granite; contains enclaves of schistose hornfels and feldspar porphyry.|acid intrusive rock|||Y|S-type|17-JAN-23
Buckwong Granodiorite|30583|Buckwong Granite|2807|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|43220||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G87|Grey, foliated, medium grained, S-type, biotite-muscovite granite; felsic northern tip of pluton is foliated, and has high potassium radiometric signature.|acid intrusive rock|||Y|S-type|17-JAN-23
Buckwong Granodiorite - felsic phase 79693|79693|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Buckwong Granodiorite|30583|Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G87a.|Felsic phase, locally foliated, pink (high potassium) in radiometrics|acid intrusive rock|||Y|S-type|17-JAN-23
Buldah Gap Granodiorite|2847|Buldah Gap Granite|24779|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Blue Gum Suite|31520|Lower Devonian||||intrusion|Llandovery||||||||No|41850||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G22.  Within the Glenbog Supersuite.|Dark grey, medium to coarse grained, hornblende-biotite granodiorite, mostly massive; extensive pyritic marginal phase porphyritic in quartz and feldspar; equigranular interior with prominent quartz and rare pyroxene|acid intrusive rock|||Y|I-type|17-JAN-23
Buldah Trail Granite|26432|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Bulgana Diorite|37635|||||Yes|Formation, beds|Formal|Other new published name|Described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Dark grey biotite-hornblende quartz diorite: fine grained; numerous darker diorite xenoliths; oxidised, highly magnetic|intermediate intrusive rock|||Y||17-JAN-23
Bull Run Gap Granite|2878|Bull Run Gap Adamellite|24780|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|42726||||||Briefly described. Formal name not intended by Chappell (1991). Age and lithology updated from GSV data (HG, Dec 2005). Advised by Fons VandenBerg, Vince Morand that this is has been the preferred name since 2000. [30-SEP-2010]|Felsic biotite granite: fine to medium grained; grey; S-type. |acid intrusive rock|||Y|S-type|17-JAN-23
Bulla Granodiorite|26434|Bulla Adamellite|2880|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian|368|2||intrusion|Lower Devonian|392|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|33604||||||See also informal Bulla granodiorite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G276|Biotite-cordierite granodiorite and granite: coarse-grained; minor garnet.|acid intrusive rock|||Y|S-type|17-JAN-23
Bulla Suite|31598|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian|||||Middle Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Bullabul Granodiorite|39837|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Devonian||||intrusion|Lower Devonian|393|4|isotopic, U/Pb|||||No|61369||||||Same as Bullabul Granite? - and may have been incorporated into the Tarnagulla Granodiorite?|Medium- to coarse-grained, non-foliated granodiorite.|acid intrusive rock|||Y||17-JAN-23
Bullawin Porphyry|30446|Green Hill Granite|7748|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|61183||Cayley R., Taylor D.|28-AUG-96|||Used on Grampians special map. Age and lithology updated from GSV data (HG, Dec 2005). Note: Victoria Valley (now Dwyer) Granite G399, Mirranatwa Granite G402, and Bullawin Porphyry G403 replace the Victoria Valley Granite 751, Long Reach Granite 751 and Green Hill Granite 752 of Chappell et al 1991. Partial equivalent of (obsolete) Green Hill Granite. Formerly (obsolete) Bare Hill Rhyodacite, partly?|Greyish green, biotite hornblende dacite to rhyodacite: small intrusive plugs; glassy to medium grained, somewhat porphyritic, felsic, oxidised, I-type.|acid intrusive rock|||Y|I-type|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
Bullengarook Gravel|28182|Bullengarook Gravels|77306|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Zanclean||||deposition|Late Miocene||||||5|VIC|No|33604||||||After Bullengarook Gravels of Crawford (1940) p264.|Gravel, sand and silt: vein quartz pebbles and cobbles; moderately rounded and sorted; crudely to well stratified; moderately consolidated.|regolith|||N||17-JAN-23
Bullung Siltstone|24785|||||Yes|Formation, beds|Formal|Other new published name|Defined|Jordan River Group|9028|||Homerian||||deposition|Telychian||||||600|VIC|Yes|33601|33601|VandenBerg, A.H.M.|15-JAN-74|Vic SNSC|01-DEC-73||Predominantly thinly banded siltstones, typically olive green in outcrop; several interbedded turbidite horizons of thick structureless fine-grained sandstone or siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bullung Siltstone, Murderers Hill Siltstone, Sinclair Valley Sandstone|79965|Bullung Formation, Murderers Hill Formation, Sinclair Valley Formation|37688|||Yes|Formation, beds|Informal|Variation of published name|Not recorded|Jordan River Group|9028|||Ludlow||||deposition|Llandovery||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project.|Marine mudstone, turbiditic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bumberrah Member|2938|||||Yes|Member, phase|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|41511|||||||||||N||17-JAN-23
Bumble Creek Formation|2941|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||deposition|||||||||No|41585|||||||||||N||17-JAN-23
Bundara Munjie Quartz Diorite|69427|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Not related to Bundarra Granite (NSW) or Bundara Tonalite (VIC). Geological Survey of Victoria map code: G467. Age and lithology updated from GSV data (HG, Dec 2005). Is this related to Bingo Munjie Quartz Diorite?|Hornblende-biotite quartz diorite: fine to medium grained; porphyritic, with large hornblende and biotite phenocrysts, lesser plagioclase, augite phenocrysts in groundmass of fine plagioclase, I-type intrusion.|acid intrusive rock|||Y||17-JAN-23
Bundara Tonalite|69426|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Pretty Valley Suite|69707|Silurian||||intrusion|Silurian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Formerly included in Pretty Valley Series (Fagan 1979); grouped with Pretty Valley Tonalite by Beavis (1962). Not related to Bundarra Granite (NSW) or Bundara Munjie Quartz Diorite (VIC). GSV code: G168. Age updated from GSV data (HG, Dec 2005).|Foliated, grey, coarse to medium grained, equigranular, I-type biotite tonalite; biotite-rich, hornblende occurs locally; minor enclaves; includes minor granodiorite types with orthoclase, no hornblende|acid intrusive rock|||Y|I-type|17-JAN-23
Bung Bung Syenite|30293|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60503||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Benambra 1:100 000 sheet area. Intrudes Little Mount Tambo Trachyte Member. Age and lithology updated from GSV data (HG, Dec 2005). See also Mount Bung Bung Syenite, used on maps in the same area in 1998 and 1999.|Hornblende-biotite syenite: pale grey, medium to coarse grained, equigranular, porphyritic in the south |intermediate intrusive rock|||Y||17-JAN-23
Bungal granite|3001|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|37385|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Bungeet West Granite|28414|Bungeet Granite|35155|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. See also Bungeet Granite in VIMPS (1997) Wangaratta interp. Age updated from GSV data (HG, Dec 2005). GSV Code: G210|Equigranular medium-grained, pinkish biotite granite with vermiculite, indicating some hydrothermal alteration; accessory muscovite, fluorite.|acid intrusive rock|||Y|S-type|17-JAN-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
Bungywarr Formation|3028|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Errinundra Group|28537|||Emsian||||deposition|Pragian||||||550||No|41585|||||||Sandstone and pebble conglomerate, including volcaniclastics; interbedded ignimbrite-like rocks are unwelded; minor rhyolitic lava is surrounded by hyaloclastite.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Bunnugal Volcanics|78979|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||Miga Supersuite|78978|Late Cambrian||||eruption|Middle Cambrian||||||||No|||Cayley, R. (GSV)|16-DEC-14|||Map sheet: Ballarat SJ54-8, Willaura 7422. A formation (comprising tuff, volcaniclastics and lavas) that sits within the Mount Stavely Volcanic Complex  of Buckland (1986), but is now known to exist within a separate, newly-recognised faults slice located some distance west of Mt Stavely. To be published:  in a GSV Report on the Willaura project area in 2015, currently under preparation.|Tuff, volcaniclastics and lavas.|igneous volcanic rock|||N||17-JAN-23
Bunroy Hut Granite|3039|||||Yes|Formation, beds|Informal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: 91|I-type granite; includes: moderately porphyritic biotite granite; grey, medium to coarse grained, equigranular biotite granodiorite; grey, massive, equigranular, leucogranite and biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Bunroy Hut Granite - highly magnetic phase 79699|79699|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Bunroy Hut Granite|3039|Pridoli|||||Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G91b.|Biotite granodiorite: grey, medium to coarse grained and equigranular; occasional small ovoid microgranular mafic enclaves; I-type; highly magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Bunroy Hut Granite - leucocratic phase 79700|79700|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Bunroy Hut Granite|3039|Pridoli|||||Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G91c.|Leucogranite and biotite granite: grey, massive equigranular; I-type; moderately magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Bunroy Hut Granite - moderately magnetic phase 79698|79698|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Bunroy Hut Granite|3039|Pridoli|||||Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G91a.|Biotite granite: moderately porphyritic; equant quartz phenocrysts to 10 mm across; I-type; low to moderately magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Burbibyong Granite|37636|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSVS Code: 568|Locally foliated, non-magnetic, brownish grey, medium to fine grained, S-type biotite-cordierite granite|acid intrusive rock|||Y|S-type|17-JAN-23
Burglar Gap Granite|30514|Buckle Trail Granite|2795|||Yes|Formation, beds|Formal|Resvd name published|Described|||Tonghi Suite|18336|Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|27-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G14|Highly magnetic, pale grey, fine to medium grained, massive, biotite-muscovite leucocratic granite|acid intrusive rock|||Y||17-JAN-23
Burlington Sandstone Member|28416|||||Yes|Member, phase|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|35283||||||See also the abbreviated Burlington Member.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Burnie Group|3088|||||Yes|Group, Suite|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|33220||||||Check State. Should it be TAS?[CEBJul95]. Probably obsolete?|||||N||17-JAN-23
Burnley Basalt Flow|3093|||||Yes|Formation, beds|Formal|Variation of published name|Described|Yarra Delta Group|29186|||Chibanian||||eruption|Lower Pleistocene||||||||No|41848|||||||Very high strength, dark grey, jointed, vesicular basalt, weathered at the top.|basic volcanic rock|||N||17-JAN-23
Burong Formation|32302|Traralgon Formation|18553|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Cobia Subgroup|32306|||Priabonian||||deposition|Lutetian||||||||No|13323||Partridge A.D.|02-FEB-98|||Replaces the broad usage of Traralgon Formation by Hocking (1976, 1988) & Thompson (1986).|Fluvial-deltaic and paralic deposits: coal-rich: interbedded sandstone, siltstone, shale and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||11-SEP-23
Burramboot Formation|30461|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount William Volcanics|30460|||Cambrian||||deposition|Cambrian||||||||No|22886||Wohlt K.|03-SEP-96|||Heathcote area. Tholeiites.|Tholeiites|basic volcanic rock|||N||17-JAN-23
Burrumbeep Granodiorite|37637|Burrumbeep Adamellite|37638|||Yes|Formation, beds|Formal|Variation of published name|Described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Changed spelling of  Burrumbeet Granodiorite, named for a different, though remarkably similarly named, geographic site. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G381|Hornblende-biotite granodiorite; pale grey; porphyritic; fine to medium grained; miarolitic cavities, symplectic intergrowth textures; contact metamorphosed by enclosing Ararat Granodiorite; oxidised, I-type, very weakly to non-magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Burrungabugge Granodiorite|37639|Burrungabugge Tonalite|30685|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian|408|7|isotopic, U/Pb|||||No|60503||||||Series of six small outcropping intrusions and one small outlying intrusion partly buried by the Murtagh Creek Ignimbrite.  Also referred to as the Burrungabugge pluton. GSV Code: G96|Highly magnetic, dark green, medium grained, I-type hornblende granodiorite; epidote alteration common.|acid intrusive rock|||Y|I-type|17-JAN-23
Burrungule Member|3162|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Dilwyn Formation|5489|||Lutetian||||deposition|Early Eocene||||||300||No|23671||||||Interdigitates with Knight Formation at lower boundary.  Geological Province: Otway Basin (Gambier Embayment).|Carbonaceous clay with occasional silt and coarse sand interbeds.|sediment|||N||17-JAN-23
Bushy Creek Granodiorite|26442|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Bushy Creek Igneous Complex|73823|Late Cambrian|489|7|isotopic, U/Pb|intrusion|Late Cambrian|502.5|2.6|isotopic, Ar/Ar|||||No|40172||||||See also Bushy Creek Granite, Bushy Creek Tonalite. Age: 489+/-7Ma (U-Pb zircon). Intrudes Glenthompson Sandstone and Glenelg River Complex. Previously included in the Devonian Mafeking Suite (White et al,1988). Age and lithology updated from GSV data (HGDec05). GSV Code:G395|Hornblende-biotite granodiorite: grey, equigranular; weakly magnetic; deeply weathered. Hornblende granodiorite phase: porphyritic with phenocrysts of quartz, plagioclase, alkali feldspar and hornblende; strongly magnetic.|acid intrusive rock|||Y|I-type|05-SEP-23
Bushy Creek Granodiorite - equigranular phase 79684|79684|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Bushy Creek Granodiorite|26442|Late Cambrian|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G395a.|Hornblende-biotite granodiorite: grey, equigranular; weakly magnetic; deeply weathered.|acid intrusive rock|||Y||17-JAN-23
Bushy Creek Granodiorite - porphyritic phase 79685|79685|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Bushy Creek Granodiorite|26442|Late Cambrian|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G395b.|Hornblende granodiorite: porphyritic with phenocrysts of quartz, plagioclase, alkali feldspar and hornblende; strongly magnetic.|acid intrusive rock|||Y||17-JAN-23
Bushy Creek Igneous Complex|73823|||||Yes|Group, Suite|Invalid|Variation of published name|Described|||||Late Cambrian|489|7|isotopic, U/Pb||Middle Cambrian|502.5|2.6|isotopic, U/Pb|||||No|63599||||||More a structural term than stratigraphic. Invalid name. Bushy Creek Granodiorite has priority. Ages: 500+/2Ma and 495+/-5Ma (Ar40-Ar39, zircon U-Pb respectively): Crawford et al 1996a; Foster et al 1998) per AJES 54/7. To be included in the Miga Supersuite in 2015. Said to include the Bushy Creek Granodiorite,  Buckeran Diorite.|||||N||05-SEP-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
Buttercup Mudstone Member|74892|||||Yes|Member, phase|Formal|Other new published name|Described|Snowy Plains Formation|17054|||Mississippian||||deposition|Mississippian||||||||No|64606||||||See misspelt Buttercup Sandstone Member|Mudstone, shale, minor sandstone: alluvial deposits.|fine grained siliciclastic rock|||N||17-JAN-23
Buxton Granodiorite|37641|Buxton Granite|3213|||Yes|Formation, beds|Formal|Variation of published name|Described|||Marysville Igneous Complex|11424|Upper Devonian||||intrusion|Upper Devonian|358|10|isotopic, K/Ar|||||No|23309||||||Age updated from GSV data (HG, Dec 2005).|Greenish-grey biotite-garnet granodiorite and porphyry: coarse grained, porphyritic, in some places quartz-feldspar-garnet porphyry with same composition; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Byawatha Granite|27356|Byawatha Aplite|3219|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G197|Fine-grained to aplitic granite.|acid intrusive rock|||Y|I-type|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
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
Cadden Rhyolite|41192|||||Yes|Formation, beds|Formal|Other new published name|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||||No|50160|50154||||||Rhyolite lava: cream coloured, fine grained, small phenocrysts of quartz and feldspar|acid volcanic rock|||N||17-JAN-23
Cairns Creek Granodiorite|37253|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Late Cambrian||||||||No|23309|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Rim of massive, coarse grained, porphyritic hornblende-biotite granodiorite; accessory magnetite, sphene and allanite; magnetic. Core of biotite granodiorite: massive, coarse grained, alkali feldspar-phyric to equigranular; weakly magnetic|acid intrusive rock|||Y|I-type|17-JAN-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
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
Callemondah Conglomerate|34350|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Delatite Group|21636|||Givetian||||deposition|Givetian||||||110||No|22729|22729|||||Upgrading of name for a basal unit of the Delatite Group|Conglomerate, sandstone, mudstone: conglomerate polymictic, pebbles and cobbles of vein quartz, metasedimentary rock, chert, siltstone, imbricated - forms prominent bluffs. Sandstone and mudstone red, lithic. Fluvial deposits.|siliciclastic sedimentary rock|||N||18-SEP-23
Calton Hill Sandstone Member|3361|||||Yes|Member, phase|Formal|Variation of published name|Defined|Springfield Sandstone|26146|||Llandovery||||deposition|Llandovery|||||||VIC|No|42628|42826||||||Sandstone|siliciclastic sedimentary rock|||N||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 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
Cambrian to Ordovician granites 76528|76528|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Ordovician|448|||intrusion|Middle Cambrian|504|||||||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
Campbell Knob Suite|31564|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian|||||Lower Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Campbells Knob Granodiorite|30562|Campbell Knob Granodiorite|28429|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bullenbalong Suite|2895|Wenlock||||intrusion|Llandovery||||||||No|43206||||||Murrindal area. Misspelling- Campbell Knob Granodiorite? Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G66|Biotite granodiorite: medium grained; pale grey; abundant gneiss and biotite schist enclaves, aplite and Snowy River Volcanic dykes.|acid intrusive rock|foliated metamorphic rock||Y|S-type|17-JAN-23
Camview Granite|37642|Katandra Granite|27443|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|23309||||||Formerly Katandra Granite. New name taken from Camview Stud on the Dookie 1:100 000. Age updated from GSV data (HG, Dec 2005).|Biotite granite: varies from evenly medium grained to coarse grained and weakly porphyritic in both feldspars; tourmaline is present, both disseminated and in nodules.|acid intrusive rock|||Y|S-type|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
Cann Mountain Granodiorite|3461|Cann Mountain Granite|26455|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Llandovery||||||||No|41850||||||Age and lithology updated from GSV data (HG, Dec 2005). See also the informally named Cann Mountain Granite. GSV Code: G25|Moderately magnetic, pale yellow grey, coarse grained, massive, biotite-minor hornblende granite with prominent quartz and chloritised mafic minerals.|acid intrusive rock|||Y|I-type|05-SEP-23
Cannie pluton|83442|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G655. Strongly magnetic (response to 300 nT)  and shows distinct layering; gravity response probably a weak low, but obsured by more regional effects.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Cape Conran Granite|3485|Cape Conran granite|3486|||Yes|Formation, beds|Formal|Other new published name|Described|||||Emsian|397.8|2.8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Silurian||||||||No|41232||||||Intrusive within the Kuark Metamorphic Complex.  Intrudes Pinnak Sst to the east. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G42|Granite: composition variable; muscovite, biotite-(hornblende); coarse-grained; mylonitic; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Cape Woolamai Granite|3535|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|35278|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Carapooee Granodiorite|35501|Carapooee Granite|23468|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian||||||||No|23164||||||G356. Of Mount Cole Suite. Age updated from GSV data (HG, Dec 2005). GSV Code: G356|Pale grey to pink, fine-medium grained, mafic biotite granodiorite to syenogranite; with porphyritic texture and large phenocrysts of plagioclase.|acid intrusive rock|||Y||17-JAN-23
Carawa Cobble Conglomerate|3573|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|33020|||||||Conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Cardinia Sand|3600|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|31510|||||||Sand|sediment|||N||17-JAN-23
Carisbrook tillite|3618|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|39967||||||Not related to Carisbrooke Sand.|Tillite|siliciclastic sedimentary rock|||N||17-JAN-23
Carrajung Volcanic Group|76936|Carrajung Volcanics|24215|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Eocene|||isotopic, K/Ar|eruption|Paleocene|||isotopic, K/Ar|||||No|66244||||||Formerly Carrajung Volcanics (Roberts 1981). Most flows are reversely magnetised. Apparently continuous in outcrop and magnetic data with Thorpdale Volcanic Group to the west, but has older K-Ar ages (late Paleocene to early Eocene); their boundary is arbitrary.|Titanaugite basalt, olivine basalt, tuff, and volcanogenic sandstone, siltstone and claystone.|basic volcanic rock|||N||17-JAN-23
Carrara Marble|38035|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned||||||||||||||||||No|24312|||||||Marble|metasedimentary carbonate rock|||N||17-JAN-23
Carriage Range Ignimbrite|34872|||||Yes|Formation, beds|Formal|Other new published name|Described|Avonmore Subgroup|34825|||Pragian||||eruption|Lochkovian||||||80||No|22968||||||Type section location given in Willman et al (1999) GSV Report 118.|Quartz ignimbrite: range from coarse-grained with very high phenocryst content to finer, less crystal-rich rocks; high cognate lithic content gives rock a clastic appearance.|acid volcanic rock|||N||17-JAN-23
Carrigeen Granodiorite|33129|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Ordovician|487|6|isotopic, K/Ar|intrusion|Middle Cambrian||||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria. Age and lithology updated from GSV data (HG, Dec 2005)|Bluish-white muscovite-biotite granodiorite: massive to foliated, medium grained, equigranular; local accessory garnet; metasedimentary enclaves, microcline megacrysts and schlieric foliation become more abundant toward the periphery.|acid intrusive rock|||Y|S-type|17-JAN-23
Carrolls Amphibolite|37531|||||Yes|Formation, beds|Formal|Other new published name|Described|Moornambool Metamorphic Complex|37578|||Late Cambrian|||||Late Cambrian||||||400||No|61187||||||Moderately to highly magnetic within Devonian contact aureoles. From Magdala Volcanics precursor.|Hornblende-quartz-feldspar schist; minor greenschist; mylonitic in places; amphibolite rock preserves occasional plagioclase phenocrysts, amygdales, and thin layers of plagioclase, diopside, garnet, quartz-calcareous layers within the basaltic protolith|metamorphosed basic igneous rock|||N||17-JAN-23
Carruno Tonalite|69407|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Falls Creek Suite|69698|Lower Devonian||||intrusion|Lower Devonian||||||||No|61166||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G164. FEATHERTOP 1:50 000. See also Carruno Granodiorite (a possible former name for this unit?). Intrudes Cobungra Granite and parts of Omeo Metamorphic Complex.|I-type. Medium-grained, equigranular biotite tonalite with no foliation.|acid intrusive rock|||Y|I-type|17-JAN-23
Carson Creek Ignimbrite|21462|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||600|VIC|No|43206||Orth K.|20-SEP-89|||Murrindal area.|Feldspar ignimbrite with minor interbedded sediments; phenocrysts and coarse-grained with a feldspar:quartz ratio of ~5:1.|acid volcanic rock|||N||17-JAN-23
Case Granite|37643|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Middle Devonian||||intrusion|Late Silurian||||||||No|60542||||||GSV Code: G513. Age and lithology updated from GSV data (HG, Dec 2005)|Medium grained, I-Type, leucocratic granite, very poorly exposed and altered|acid intrusive rock|||Y|I-type|17-JAN-23
Casterton Formation|3744|Casterton Beds|3743|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Otway Group|14685|||Lower Cretaceous|134|||deposition|Bajocian|170||isotopic, K/Ar|||1000||No|41726||||||See also Casterton beds. Originally Casterton Beds, then C.Formation, C.Beds, C.Group, C.beds; now established as Casterton Fm. Briguglio et al. (2015), RefID 70379 suggests Crayfish Group includes Casterton Fm. GA still uses Crayfish Subgroup [in 2015] but this has always excluded Casterton Formation (which is placed directly into Otway Group). Hydrocarbon source rock.|Predominantly composed of carbonaceous shales with minor interbedded sltst. sst, volcaniclastics, basalt flows.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Casterton Volcanics|80012|||||Yes|Formation, beds|Invalid|Variation of published name|Mentioned|||||Oxfordian|||||Bajocian||||||||No|69297||||||Probably volcanics in the base of Casterton 1 borehole. Shown as unconformably underlying the Cretaceous Casterton Formation. Unlikely to be intended as a formal name.|||||N||17-JAN-23
Castleburn Granite|3760|Castleburn Tonalite|37532|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|42726||||||GSV Code: G142.  Checked correct usage with GSV - 6 April 2010|Biotite granite: grey, medium-grained, equigranular, massive.|acid intrusive rock|||Y|I-type|05-SEP-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
Castlemaine Supergroup undiff. 2|37678|||||Yes|Formation, beds|Informal|Variation of published name|Not recorded|||||Lancefieldian|||||Chewtonian||||||||No|||||||Lithology referring to informal unit to be used for Victoria 1:1million geological map, National Maps Project.|Lancefieldian to Chewtonian: marine turbiditc sandstone, mudstone, black shale; minor granule conglomerate|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Castlemaine Supergroup undiff. 3|37679|||||Yes|Formation, beds|Informal|Variation of published name|Not recorded|||||Castlemainian|||||Darriwilian||||||||No|||||||Lithology referring to informal unit to be used for Victoria 1:1million geological map, National Maps Project.|Castlemainian to Darriwillian: marine turbiditc sandstone, mudstone, black shale; minor granule conglomerate|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Castlemaine Supergroup undifferentiated|37676|||||Yes|Formation, beds|Informal|Variation of published name|Not recorded||||||||||||||||||No|||||||Lithology referring to informal unit to be used for Victoria 1:1million geological map, National Maps Project.|Undifferentiated: marine turbiditic sandstone, mudstone, black shale; minor granule conglomerate|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Castor Oil Lava|36860|Castor Oil Lava Complex|29706|||Yes|Formation, beds|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Pragian||||||||No|60542|||||||Rhyolite, andesite and basalt: lava dome/cryptodome.|acid volcanic rock|||N||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 Sandstone (VIC)|35645|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|23109||||||Invalid name - Catherine Sandstone - Queensland already in existence|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Cattleyard Granite|77283|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Paleozoic||||intrusion|Paleozoic||||||||No|68115||||||Although it has not been observed in the field, radiometric data shows that this unit outcrops, hence it now has a formal name.|Granitic rock; moderately magnetic, low K, low Th, moderate U.|acid intrusive rock|||Y||17-JAN-23
Cauldron Volcanics|40602|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Carboniferous||||eruption|Devonian||||||||No|23309|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Caupaul Igneous Complex|37235|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Ordovician|||||Cambrian||||||||No|23991|50154|||||Part of the Glenelg River Metamorphic Complex.|Gabbro, diorite, tonalite.|igneous intrusive rock|||Y||17-JAN-23
Cave Hill Sandstone|3837|Cave Hill Formation|3836|||Yes|Formation, beds|Formal|Variation of published name|Described|Murrindindi Supergroup|35522|||Emsian||||deposition|Pragian||||||60||No|32076|||||||Quartzitic sandstone, conglomerate.|siliciclastic sedimentary rock|||N||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 Sandstone|39640|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088||||||probably Ordovician|Sandstone|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
Ceres Gabbro|37265|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cambrian||||intrusion|Cambrian||||||||No|23309||||||Correlated with Mesoproterozoic Wickham Metamorphics that underlie the Neoproterozoic Currie Group on King Island (Tas).|Metagabbro, weakly deformed to mylonitic, amphibolite facies metamorphism.|metamorphosed basic igneous rock|||Y||17-JAN-23
Changue East Diorite|75780|Bindaree Diorite|32372|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|68115||Morand, V. (GSV)|21-OCT-10|||Warburton 1:250 000 sheet area SJ55-06.  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G185. To replace Bindaree Diorite.This pluton near Mt Buller was named Bindaree Diorite on earlier maps (Chappell et al. 1991), but this conflicts with the Bindaree Formation nearby. It is named after the parish of Changue East.|Diorite, gabbro: medium grained, dark green-grey.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Charlestown Tonalite|69124|Charlestown Quartz Diorite|34914|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Bingo Munjie Suite|34913|Lower Devonian||||intrusion|Lower Devonian||||||||No|68116||Fons VandenBerg (Geoscience Victoria)|06-JUN-05|||Confirmed by F. VandenBerg (by email to O.Raymond 6/05) to be correct name for this unit - superseding both Charlestown Creek Tonalite and Charlestown Quartz Diorite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G106.|Dark bluish to greenish grey; medium-grained; I-type hornblende-biotite-(pyroxene) quartz diorite|acid intrusive rock|||Y|I-type|26-SEP-23
Chatsworth Basalt|80553|||||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Late Cambrian|498||inferred, intrusive relationship||Late Cambrian|510||inferred, geochemical correlation|||||No|71593||||||Fine-grained basalt to microgabbro occuring as dykes, sills and some possible lava flows.|Fine-grained basalt to microgabbro occuring as dykes, sills and some possible lava flows.|basic volcanic rock|basic intrusive rock||Y||17-JAN-23
Cheltenham Member|3947|||||Yes|Member, phase|Informal|Other new published name|Mentioned|||||Cheltenhamian||||deposition|Cheltenhamian||||||||No|42371||||||Probably informal name for Member of Cheltenhamian 9Miocene-Pliocene) age?|||||N||17-JAN-23
Chepstowe Granodiorite|30176|Chepstowe Granite|26474|||Yes|Formation, beds|Formal|Resvd name published|Described|||Beckworth Suite|1351|Upper Devonian||||intrusion|Upper Devonian|||||||VIC|Yes|60585||Taylor D.|22-MAR-96|VandenBerg, F.|02-MAY-96|Ballarat 1:250 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G310. Definition card missing?|Pale pinkish-grey, medium to coarse grained, biotite granodiorite; mafic oxidised I-type pluton.|acid intrusive rock|||Y|I-type|17-JAN-23
Cherrytree Gap Sandstone Member|74886|Cherry Tree Sandstone Member|69398|||Yes|Member, phase|Formal|Variation of reserved name|Described|Donnellys Creek Siltstone|27761|||Upper Ordovician||||deposition|Middle Ordovician||||||||No|64606||||||Within the Jordan River Group.|Sandstone, siltstone: deep-marine deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Chesney Vale Granite|3963|Chesney Vale granite|3964|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|30906||||||Age updated from GSV data (HG, Dec 2005). GSV Code: 211|Small intrusions of fine to medium-grained pinkish granophyre, contains tourmaline nodules; consists of quartz, plagioclase, K-feldspar, biotite, zircon, tourmaline, opaques.|acid intrusive rock|||Y|S-type|17-JAN-23
Chetwynd Tonalite|37248|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|24012|50154|||||G433 Possibly supersedes Mooree Tonalite. Intruded by Cairns Creek Granodiorite and Glengoyne Adamellite. Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Bluish-grey biotite tonalite: massive, coarse grained with quartz phenocrysts; accessory magnetite and rare allanite; uncommon mafic biotite-rich microgranitoid enclaves; magnetic to non-magnetic.|acid intrusive rock|||Y||17-JAN-23
Childers Formation|25842|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Latrobe Valley Group|10224|||Oligocene|28|||deposition|Paleocene||||||40|VIC|No|71202|31254||||||Alluvial fans, braided streams and point bar sand deposits: Sandstone, conglomerate, clay, sand, gravel.|siliciclastic sedimentary rock|regolith||N||17-JAN-23
Chilpin Granodiorite|30561|Chilpin|21494|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bullenbalong Suite|2895|Wenlock||||intrusion|Llandovery||||||||No|43206||||||Murrindal area. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite: very fine to medium grained; S-type |acid intrusive rock|||Y|S-type|17-JAN-23
Chimaera Formation|32309|Chimaera Sandstone|80109|||Yes|Formation, beds|Formal|Resvd name published|Described|Golden Beach Subgroup|32307|||Campanian||||deposition|Santonian||||||||No|13323||||||Of Lowry & Longley (1991)[ as Chimaera Sandstone]. Advised by A.D. Partridge. Within the Golden Beach Subgroup (Latrobe Group).|Fluvial-deltaic and paralic deposits - shales and siltstones, sandstone.|siliciclastic sedimentary rock|||N||11-SEP-23
Chin Chap Meladiorite|37646|Chin Chap Hornblendite|37645|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||intrusion|Late Cambrian||||||||No|23309|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-rich diorite to gabbro: massive, black, coarse grained; minor biotite, plagioclase and clinopyroxene; non-magnetic, I Type. |intermediate intrusive rock|basic intrusive rock||Y|I-type|17-JAN-23
Chintin Formation|28232|Chintin beds|4020|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Ludlow||||deposition|Llandovery||||||150|VIC|No|60083|42826|||||Distinguished at 1:50 000 scale. Combined with Springfield Sandstone at 1:250 000 scale.|Laminated and current-bedded sandstone, minor interbedded mudstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Chitts Creek Conglomerate|74148|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Strzelecki Group|17440|||||||deposition|||||||||No|61329|||||||||||N||17-JAN-23
Chocolyn Silts|4038|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|31511|||||||Silt|sediment|||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
Chowilla Sand Member|75110|Chowilla Sand|4042|||Yes|Member, phase|Informal|Variation of published name|Described|Blanchetown Clay|1918|||Piacenzian||||deposition|Piacenzian||||||13||No|64961||||||Sand-dominated package at base of Blanchetown Clay.  The term Chowilla Sand has far greater usage in the literature and is probably the accepted formal name? But this paper [64961] appears to be intending to redefine the unit.|Comprises a lower and upper sand separated by a non-calcareous green clay; sand units consist of a fine very well-sorted white to yellow quartz sand, with a red mottled zone in the upper section.|medium-coarse grained siliciclastic rock|fine grained siliciclastic 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
Clarkes Hill Basalt|4112|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|30370|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Cliffy Island Granite|26481|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005).|Granite, S Type|acid intrusive rock|||Y|S-type|17-JAN-23
Clifton Formation|4157|Clifton Beds|4155|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Heytesbury Group|8311|||Miocene||||deposition|Oligocene|||inferred, biostratigraphic correlation|||90|VIC|No|48581|31036|||||Of Teichert (1947). See also Lexicon. SJ54-11,12. Superseded Kawarren limestone in 1974. Different unit to Clifton Springs Tuff. Ages from strontium isotope stratigraphy on forams [2009 reference].|Shallow marine deposits: medium to coarse grained calcarenite of bryozoan and shell fragments in quartz sand matrix, moderately sorted, thin to medium bedded (60581).|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Clifton Springs Tuff|73495|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Bellarine Volcanic Group|72699|||Miocene||||eruption|Miocene|||||||VIC|No|65715||VandenBerg, F. (GSV)|19-JUL-07|VandenBerg, F.|19-JUL-07|Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p14, 15. Different unit to Clifton  Formation.|Well-bedded mafic tuffs, predominantly sand-sized; also incude clay and lapilli.|basic volcanic rock|||N||17-JAN-23
Clonbinane Member|4179|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Humevale Siltstone|28613|||Pridoli||||deposition|Ludlow||||||100||No|43547||||||Probably an abbreviation of Clonbinane Sandstone Member? Initially mapped as part of Humevale Fm (Williams 1964) together with Mount Phillipa Member at base of the formation, Humevale Siltstone forming the bulk of the formation and Flowerdale Sandstone Member near the top.|A thin sandy unit, with length along strike of 10 km.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Cloven Hills Granodiorite|37252|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Late Cambrian||||||||No|24012|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende granodiorite; massive, light bluff, medium to coarse grained, equigranular; accessary magnetite, sphene, allanite and epidote; magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Clover Hill Complex|73148|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described||||||||||||||||||No|61896||||||||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
Cobaw Suite|38292|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian|||||Upper Devonian||||||||No|24385||||||Replaced part of Harcourt Suite.|Granite, Granodiorite|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
Cobbledick Basalt|77308|Cobbledick basalt|37363|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Oligocene||||eruption|Oligocene||||||||No|65715||||||Formalises the name of Unit no. 37363. Thought by Holdgate et al. (2002) to separate Werribee and Yaloak Formations.|Basalt.|basic volcanic rock|||N||17-JAN-23
Cobbler Rhyolite|37535|Mine Creek Rhyolite|35138|||Yes|Member, phase|Formal|Variation of published name|Defined|Rose River Volcanics|68479|||Frasnian||||eruption|Frasnian||||||200|VIC|No|66252||||||Previously known as Mine Creek Rhyolite of Gaul (1995). Within the Tolmie Igneous Complex.|Rhyolitic lava with garnet phenocrysts, and lava breccia that is probably resedimented.|acid volcanic rock|||N||10-SEP-23
Cobbs Spur Andesite Breccia|21512|||||Yes|Formation, beds|Formal|Resvd name published|Described|Jamieson Volcanic Group|73609|||Late Cambrian||||eruption|Middle Cambrian||||||||No|23309||VandenBerg, A.H.M.|07-SEP-94|||Formerly a unit in Licola Volcanic Group (VandenBerg et al. 1995) which has been made redundant.|Andesite breccia, volcanogenic sandstone, phosphatic shale, limestone megaclasts; marine lavas and sedimentary rocks. Red-black in RGB. Non-magnetic.|intermediate volcanic rock|sedimentary rock||N||17-JAN-23
Cobden basalt|38161|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Quaternary||||eruption|Quaternary||||||||No|24344|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Cobia Subgroup|32306|Cobia Group|74141|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Latrobe Group|10217|||Rupelian|||||Lutetian||||||||No|13323||Partridge A.D.|02-FEB-98|||Supersedes Cobia Group of Thompson (1986) - now top of Latrobe Group.|Non-marine to paralic clastics; marine clastics. Includes coals and carbonaceous shales (hydrocarbon sources) and marine near-shore barrier and shoreface sandstones (reservoirs).|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Cobram Sand|4268|||||Yes|Member, phase|Formal|Other new published name|Described|Coonambidgal Formation|4598|||Quaternary||||deposition|Quaternary||||||||No|35272||||||Source-bordering dunes first described and named by Lawrence (1975). Occur mainly along banks of larger streams  - dunes still actively forming today.|Composed of fine- to coarse-grained quartz sand, minor silt, and clay blown from channels of adjacent streams, forming clusters of low and narrow crescentric dunes and are still actively forming today.|sediment|||N||17-JAN-23
Cobungra Granite|34840|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Omeo Metamorphic Complex|14578|||Wenlock||||intrusion|Llandovery||||||||No|22968||||||Type section location given in Willman et al (1999) GSV Report 118. BOGONG 1:100 000. Geological Survey of Victoria map code: G549. Age and lithology updated from GSV data (HG, Dec 2005).|Granite, granodiorite: dark grey; fine to coarse-grained; massive to strongly foliated; abundant K-feldspar phenocrysts and variable muscovite-biotite-cordierite-sillimanite content; abundant metasedimentary enclaves|acid intrusive rock|||Y|S-type|06-SEP-23
Cochranes Creek Granodiorite|37647|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||GSV Code: G341|Strongly porphyritic, I-type, granodiorite with dark brown biotite, some microcline; euhedral quartz up to 2 cm, pegmatitic, aplitic|acid intrusive rock|||Y||17-JAN-23
Cocks Break Granodiorite|34860|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005)|I-type; Granodiorite: grey; medium-grained; porphyritic in biotite |acid intrusive rock|||Y|I-type|17-JAN-23
Cod Formation|75876|||||Yes|Formation, beds|Reserved|Reserved|Briefly described|Albacore Subgroup|37365|||Late Miocene||||deposition|Middle Miocene||||||||No|70076||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Of Albacore Subgroup, Gippsland Basin. Named after the Cod-1 well the Cod Formation is the formal name applied to Unit III of the Seaspray Group described by Bernecker et al. (1997). The formation consists of Middle (to Late?) Miocene coarse-grained quartzose bioclastic packstones found within the Mid-Miocene channels within the Central Deep. The type section is designated as from 801 to 1415m in the Kingfish-7 well (Bernecker et al., 1997, fig.5).|Coarse-grained quartzose bioclastic packstones|carbonate sedimentary rock|||N||17-JAN-23
Cohuna Silt|4303|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Quaternary||||deposition|Quaternary||||||||No|33486|||||||Kow Swamp sediments|sediment|||N||17-JAN-23
Coimadai Shale|77309|Coimadai Limestone|4307|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Pliocene||||deposition|Pliocene|||||||VIC|No|65715||||||Replaces Coimaidai limestone, Coimaidai beds and Coimaidai series of Officer and Hogg (1897) as well as the more recent Coimadai (sic) Limestone (Unit no. 4307), Coomadai Limestone, Coimadai Dolomite and Coimadai Dolomite Member. Paper says newly defined here, but does not meet all definition criteria.|Variable composition ranging from well laminated dolomite to basaltic tuffs. Lacustrine with air-fall tuff.|regolith|basic volcanic rock||N||17-JAN-23
Colbinabbin Diorite|37710|||||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Middle Cambrian|||inferred|intrusion|Early Cambrian|||inferred|||||No|60599||||||Probably meant to replace reservation of Colbinabbin Ferro-diorite. Age and lithology updated from GSV data (HG, Dec 2005). Intrusive rocks at Cornella East identified by Bailey (1979) - single large diorite sill which intrudes Sheoak Gully Boninite. Represents final phase of Heathcote Volcanics (Lower Cambrian).|Quartz diorite: grey-green; fine- to medium-grained; subophitic growths of plagioclase and augite, with hornblende commonly replacing augite.|intermediate intrusive rock|||Y||17-JAN-23
Coldstream Rhyolite|4316|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Dandenong Ranges Igneous Complex|37539|||Upper Devonian||||eruption|Upper Devonian||||||||No|33598|||||||Rhyolite lava: coherent flow-banded to autobrecciated; dark greenish to bluish grey, with occasional phenocrysts of andesine in a cryptocrystalline matrix of oligoclase and orthoclase, chloritised biotite, little quartz.|acid volcanic rock|||N||17-JAN-23
Coleraine Volcanic Group|41194|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Upper Jurassic||||eruption|Lower Jurassic||||||75||No|50160|50154||||||Trachyte and basalt: lava flows, lava domes and laccoliths.|igneous volcanic rock|||N||17-JAN-23
Coliban Basalt|32062|Coliban-Campaspe basalts|4327|||Yes|Formation, beds|Formal|Resvd name published|Defined|Newer Volcanic Group|38291|||Pliocene|4.85|.05|isotopic, K/Ar|eruption|Miocene|7.1|.7|isotopic, K/Ar|||30||No|60599|60599|Wohlt K.|21-NOV-97|||Lava flows, originally informally named "Coliban-Campaspe River flows" (Cherry and Wilkinson 1994) in BENDIGO - now formalised as Coliban Basalt. Age: variety of ages ranging from 5.57+/-0.06Ma(lower)  to 4.82+/-0.05Ma (upper); and 7.1+/-0.7Ma - all K/Ar dating - presented in RefID: 60599.|Lava flow: olivine basalt; iddingsitised olivine, plagioclase and clinopyroxene phenocrysts; fine-grained, moderately vesicular (60592)|basic volcanic rock|||N||17-JAN-23
Collins Quarry Sandstone Member|79023|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Puckapunyal Formation|15639|||Lochkovian||||deposition|Lochkovian||||||||No|62469||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Colongulac Loess|4367|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|31511|||||||Loess|sediment|||N||17-JAN-23
Colquhoun Granite|4369|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended. GSV Code: G130. Age and lithology updated from GSV data (HG, Dec 2005).|Pink, coarse to medium grained, biotite granite, I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Colquhoun Sandstone Member|4371|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Lakes Entrance Formation|10081|||Miocene||||deposition|Oligocene||||||||No|35273||||||Colquhoun Granite has priority. Not a variation.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Combyingbar Formation|26487|Bemm River Beds|28238|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Upper Devonian|360|||deposition|Upper Devonian|375|||||300||No|42627||||||Also supersedes Cann River Beds, Genoa River beds and Combienbar River Beds. Age: ca375-360Ma.  Not in Mount Tambo Group. Includes fish fauna and tetrapod trackway (described from Genoa River Beds in 1993).|Fluvial, upward fining sequence of sandstone, mudstone, siltstone with basal conglomerate.|siliciclastic sedimentary rock|||N||11-SEP-23
Commins Track Leucogranite|34915|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005)|Leucogranite: grey to pink; medium to coarse-grained; equigranular to porphyritic |acid intrusive rock|||Y||17-JAN-23
Commissioners Flat Granodiorite|37711|Heathcote Granite|8208|||Yes|Formation, beds|Formal|Other new published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|69089||||||Formerly known as "Heathcote Granite", an unsuitable name due to preoccupation by Heathcote Volcanics. Age and lithology updated from GSV data (HG, Dec 2005). Intrudes adjacent Heathcote Volcanics, and Lazy Bar Andesite (Heathcote Volcanics).|Hornblende-biotite granodiorite: fine- to medium-grained, equigranular; leucocratic; contains alteration assemblage of albite, chlorite and sericite.|acid intrusive rock|||Y|I-type|17-JAN-23
Concongella Gritstone Member|41873|Concongella Gritstone|35582|||Yes|Member, phase|Formal|Variation of published name|Described|Warrak Formation|23141|||Late Cambrian||||deposition|Late Cambrian||||||||No|60451|||||||Contact metamorphosed calc-silicate rock; meta gritstone; quartz, minor feldspar, lithic pebbles.|metasedimentary rock|||N||17-JAN-23
Cones Suite|73150|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|61896|||||||||||N||17-JAN-23
Congupna pluton|83448|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73497||||||G752. Nonmagnetic; 20 micrometres/second/second gravity low.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Connleys Track Granodiorite|34841|Sam Hill|32404|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Ludlow|424|5||intrusion|Wenlock|424|5||||||No|22968||||||OMEO notes attribute unit to Mount Sam of White and Chappell (1991) which does not exist in that publication. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G117. Pluton on OMEO.|Nonmagnetic, pale grey, medium grained, biotite granodiorite and granite; S-type, massive; small biotite-rich enclaves common, enclaves of gneiss locally abundant|acid intrusive rock|||Y|S-type|17-JAN-23
Connors Creek Tonalite|34845|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ensay Suite|34902|Lower Devonian||||intrusion|Late Silurian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G135. Supersedes Ensay South-Swifts Creek Tonalite, Ensay Tonalite and Ensay South Tonalite.|Medium to coarse grained, biotite-hornblende tonalite; I-type; massive-moderately foliated. G135a: highly magnetic; G135b + G135c: weakly to moderately magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Coode Island Silt|28285|Coode Island silt|4475|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yarra Delta Group|29186|||Holocene||||deposition|Pleistocene||||||||No|71203|||||||Silty clay, sometimes fossiliferous; sands, minor gravel of the Yarra delta.|regolith|||N||17-JAN-23
Coojar Granodiorite|37249|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||||||intrusion|||||||||No|24012|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Coolungoolun coal|4563|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|37127|||||||Coal|organic rich sedimentary rock|||N||17-JAN-23
Coomandook Formation|4583|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Chibanian||||deposition|Zanclean||||||75|SA|No|34180|42966||||||Partly lithified, grey, cream, fossiliferous, medium-grained quartz sand, calcareous sand, calcarenite, sandy clay; characteristically contains lithic clasts and skeletal debris derived from older limestone|regolith|carbonate sedimentary rock||N||17-JAN-23
Coombool Member|4595|||||Yes|Member, phase|Formal|Unknown or process pending|Redefined|Monash Formation|26036|||Albian||||deposition|Aptian||||||150|SA|No|33488|42966||||||Green-grey chloritic volcanolithic siltstone, sandstone and shale.|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
Cooney Ridge Granodiorite|37712|Cooney Ridge Granite|29718|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|43315||||||previously mapped as orbost granodiorite by Beams and Hough (1979). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G512|Medium-coarse grained hornblende, I-type, biotite granodiorite|acid intrusive rock|||Y|I-type|06-SEP-23
Coongulmerang Formation|4615|Coongulmerang Beds|4614|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Seaspray Group|16717|||Pleistocene||||deposition|Pliocene||||||||No|35273|||||||||||N||17-JAN-23
Coonooer Granite|23508|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Coonooer Suite|37536|Middle Devonian||||intrusion|Lower Devonian||||||||No|42726||R.King|26-NOV-76|||Card. NLR 31-AUG-82. BD in Chappell et al (1991) but formal name not intended.  GSV Code: G359. Formerly of the Mount Cole Suite. Age updated from GSV data (HG, Dec 2005)|Muscovite biotite granite, reduced S-type, weakly porphyritic, with aplitic and pegmatitic phases; occasional large rafts of weathered micaceous hornfels.|acid intrusive rock|||Y|S-type|17-JAN-23
Coonooer Suite|37536|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|60491||||||Comprises Carapooee Granodiorite (G356), Berrimal Granite (G358) and Coonooer Granite (G359). Bibby and Moor (1998). Also contains Barrakee, Grieves Granites, and Narrewillock pluton (Wedderburn geol. map 2001). Parts formerly called Mount Cole Suite?|Hornblende and biotite-hornblende granites. Weakly magnetic plutons.|acid intrusive rock|||Y||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
Coopracambra Tonalite|30515|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|27-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite tonalite: dark grey green, coarse grained, massive; strongly porphyritic in quartz and feldspar; strongly altered |acid intrusive rock|||Y|I-type|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
Copperhead Volcaniclastic Member|4688|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Thorkidaan Volcanics|18080|||Ludlow||||deposition|Ludlow||||||||No|41585||||||Within the Enano Group.|Polymict breccia, pebbly sandstone, siltstone and minor conglomerate with clasts of rhyolite lava; rhyolitic pyroclastics and quartzite.|siliciclastic sedimentary rock|||N||17-JAN-23
Corduroy Creek Gabbro|37266|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Cambrian||||intrusion|Cambrian||||||||No|23309|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Cornella Member|30575|||||Yes|Member, phase|Formal|Resvd name published|Defined|Mount Ida Formation|27504|||Lochkovian||||deposition|Lochkovian||||||300||No|61185|60599|VandenBerg, A.H.M.|29-OCT-96|||Encompasses early Spirifer Beds (Thomas 1937).|Fine-grained sandstone, siltstone; parallel and convolute laminations, ripple drift and swaley cross laminations; intensely burrowed, common slumps, ball and pillow structures; shelly fossils (60592).|siliciclastic sedimentary rock|||N||17-JAN-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
Costerfield Siltstone|4769|Costerfield Beds|4767|||Yes|Formation, beds|Formal|Variation of published name|Described|Murrindindi Supergroup|35522|||Sheinwoodian||||deposition|Telychian||||||600||No|33604||||||Includes Illaenus Band at top.|Burrowed siltstone and claystone sequence coarsening up to very fine- to fine-grained sandstone; dark grey to brown-grey when fresh; laminated to thinly bedded.|siliciclastic sedimentary rock|||N||06-SEP-23
Council Trench Formation|4785|Council Trench Sandstone|4786|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Triassic||||deposition|Triassic||||||12|VIC|No|39865|63741|||||Of Roberts (1984).|Thin sequence of cross-bedded sandstone, pebble conglomerate and fossiliferous siltstone; sediments dominated by granitic and metamorphic detritus derived locally.  Fluvial in origin. Palaeoflora of at least 20 species (Webb et al 2006).|siliciclastic sedimentary rock|||N||27-AUG-23
Cove Sand|77691|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Pleistocene||||deposition|Upper Pleistocene|||||0|5||No|68991||Williams, G.E. (Uni of Adelaide)|11-JAN-13|||The name "Cove Sand" is applied to a Late Pleistocene unit 0-5 m thick exposed in coastal cliffs 20 km SE of Warrnambool. It overlies the Miocene Port Campbell Limestone or the Late Pleistocene "Dog Trap Bay Sand" (new name) and is overlain by the Late Pleistocene Bridgewater Fm. The geographic name comes from The Cove, a locality adjacent to Childers Cove where the unit is well exposed. For publication in AJES 2013. (G. Williams and V. Gostin, Univ. of Adelaide, Jan 2013).|Comprises poorly consolidated, red, fine to medium quartz sand, with well frosted quartz grains and minor subangular fine and coarse quartz sands.|regolith|||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
Cowombat Siltstone, Gibsons Folly Formation|79969|Cowombat Formation, Gibsons Folly Formation|37704|||Yes|Subgroup|Informal|Variation of published name|Not recorded|Enano Group|24268|||Pridoli||||deposition|Ludlow||||||||No|||||||Informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Originally included Cowombat and Gibsons Folly Formations of the Enano Group.|Marine siltstone, rhyolitic porphyries, andesite, limestone megaclasts|siliciclastic sedimentary rock|||N||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
Crabhole Creek Limestone|29915|Crabhole|29914|||Yes|Formation, beds|Formal|Resvd name published|Described|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||||No|43315||Magart A., VandenBerg A.H.M., Willman C.E., Hendrickx M.|03-NOV-95|||Orbost region.|Strongly foliated and predominantly composed of fine- to medium-grained calcite; typically impure with crenulated pelitic layers present; weakly carbonaceous in parts.|carbonate sedimentary rock|||N||17-JAN-23
Cranbourne Sand|4844|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Pleistocene||||deposition|Pleistocene||||||||No|30929||||||The type section lies to the south of Cranbourne in the Royal Botanic Gardens, Cranbourne (RBGC). It is supposedly accessible through Botanic Drive, but that road has been cut off from the type section by a fence; the only way to access it at present is through the botanical gardens. The site is listed as being of State Significance, and was recorded in Rosengren 1984 (Sites of Geological and Geomorphological Significance in the Westernport Bay Catchment).  - information courtesy Karen Kapteinis 13-AUG-2012. See email for more info.|Sand|sediment|||N||17-JAN-23
Crawford Member|4868|Crawford Limestone Member|4866|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Whalers Bluff Formation|19858|||Pleistocene||||deposition|Pleistocene||||||||No|31624||||||Not to be confused with Crawford Formation of the Northern Territory.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Crayfish Subgroup|4874|Crayfish Group|4873|||Yes|Subgroup|Formal|Variation of published name|Fully described|Otway Group|14685|||Barremian|||||Berriasian||||||4700||No|42361||||||Crayfish Group is still the preferred name in SA. Briguglio et al. (2015), RefID 70379 suggests this Group includes Casterton Fm, Sawpit Shale, Sawpit Sst, McEachern Sandstone, Pretty Hill Fm, Laira Formation. GA still uses Crayfish Subgroup but this has always excluded Casterton Formation (which is placed directly into Otway Group). Hydrocarbon source rocks.|Fluvial sandstones, conglomerates and minor silstones, coals, tuffs and basalt.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Crayfish Supersequence|73284|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Foraminisporites wonthaggiensis|117||biozone|deposition|Retitriletes watherooensis|146||biozone||0|5000||No|63134|63134|Ryan, D.J.|15-MAY-07|||The base of this sequence may be older than Tithonian as the base of the deepest half-graben have not been intersected by drilling. Sequence marks the onset of rifting in the Otway Basin and growth of major half-graben depocentres.|Organic-rich mudstones, sandstones and basalts.|siliciclastic sedimentary rock||continental rift|N||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
Cretaceous/Paleogene boundary shale|83251|Massacre Shale|68588|||Yes|Formation, beds|Unnamed|Variation of published name|Described|Wangerrip Group|19406|||Danian|||inferred||Maastrichtian|||inferred|||||No|73386||||||See also K/Pg Boundary Shale, K/T Shale.|Thin unit of silty shale to argillaceous fine-grained sandstone.|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
Crohn Granite|29708|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Wenlock||||||||No|43312||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. G515. Age and lithology updated from GSV data (HG, Dec 2005)|Tonalite: medium-grained, porphyritic, green-grey.|acid intrusive rock|||Y|I-type|17-JAN-23
Crosbie Granite|4939|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|35281||||||After Thomas (1940). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: 289.  Intrudes Castlemaine Group. Contact metamorphic aureole developed in Knowsley East Shale and all formations of Heathcote Volcanics.|Non-magnetic with discontinuous moderately magnetic metamorphic aureole; medium- to coarse-grained, biotite granite; equigranular; composed of quartz, orthoclase, biotite.|acid intrusive rock|||Y|I-type|17-JAN-23
Cross Granite|30361|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|23165||Moore D.|09-AUG-96|||Buried pluton, identified through magnetostratigraphy.||acid intrusive rock|||Y||17-JAN-23
Crowstick Diorite|4959|Crowstick diorite|4960|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lower Devonian||||intrusion|Llandovery||||||||No|39860|||||||Hornblende-bearing quartz diorite.|intermediate intrusive rock|||Y||05-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
Cunninghame Greensand Member|5032|||||Yes|Member, phase|Formal|Other new published name|Described|Lakes Entrance Formation|10081|||Oligocene||||deposition|Oligocene||||||||No|35273|||||||Glauconitic sandstone; hosts crude oil.|siliciclastic sedimentary rock|||N||17-JAN-23
Curlip Formation|39339|Curlip Gravels|5051|||Yes|Formation, beds|Formal|Variation of published name|Described|Emperor Subgroup|32290|||Turonian||||deposition|Turonian||||||||No|13323||||||Within the Emperor Subgroup (Latrobe Group). Interfingers with Kipper Shale. An article describing the change of name has not yet (2012) been indexed.|Alluvial, fluvial sandstones and thin fine-grained clastic beds: sandstones and conglomerates that are interbedded with thin shales and minor coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||11-SEP-23
Currie Creek Ignimbrite|21593|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Marroo Subgroup|22271|||Pragian||||eruption|Pragian||||||700||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Probably same unit as the Tasmanian Currie Group and Currie Granite - unclear which is current formal name?  Names may vary between Tasmania (King Island) and Victoria if the rocks extend into the island. Murrindal area.|Green to grey granular quartz-feldspar ignimbrite, with abundant phenocrysts and lithic clasts.|acid volcanic rock|||N||17-JAN-23
Currie Group|37271|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Neoproterozoic|||||Neoproterozoic||||||||No|23309||||||Probably same unit as Currie Creek Ignimbrite and Currie Granite - unclear which is current formal name? Names may vary between Tasmania (King Island) and Victoria.|||||N||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
Curtis Diorite|37538|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G386.  See also the informal Curtis diorite.|Highly magnetic, dark grey to black, hornblende-biotite diorite, quartz poor; feldspar and hornblende phenocrysts; oxidised|intermediate intrusive rock|||Y|I-type|17-JAN-23
Cut-throat Diorite|37714|Cut Throat Diorite|41874|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Quartz diorite: pale grey; fine grained; porphyritic; oxidised, moderately magnetic, highly weathered |intermediate intrusive rock|||Y||17-JAN-23
Daahl Sandstone Member|30443|||||Yes|Member, phase|Formal|Resvd name published|Described|Wartook Sandstone|30442|||Silurian||||deposition|Silurian||||||20||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. Part of  Mount Difficult Subgroup (Grampians Group).|Sandstone: pale, medium-grained, well-sorted; with very large scale wedge-shaped cross-bed sets.|medium-coarse grained siliciclastic rock|||N||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
Dandan Andesite|21613|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||300||No|43206||Orth K.|06-MAY-91|||Murrindal area.|Andesite lava, minor andesite breccia with carbonate-filled vughs.|intermediate volcanic rock|||N||17-JAN-23
Dandenong Ranges Igneous Complex|37539|Dandenongs Igneous Complex|5184|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|23309||||||See also 'Mount Dandenong' variations.|Subaerial caldera volcanics: rhyolitic to dacitic ignimbrite, minor lacustrine siltstone|acid volcanic rock|||N||17-JAN-23
Dandongadale Siltstone|35513|||||Yes|Formation, beds|Formal|Resvd name published|Described|Cobbannah Group|32459|||Early Silurian||||deposition|Early Silurian||||||3000||No|61163||VandenBerg A.H. M.|22-MAY-00|||Mount Buffalo 1:100 000 sheet area. Geological Survey of Victoria map code: Scd.|Siltstone and minor sandstone. Deep-marine hemipelagic and turbidite deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Darbalang Granodiorite|83830|Niggerheads Granodiorite|14131|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Falls Creek Suite|69698|Lower Devonian|||inferred||Lower Devonian|||inferred|||||No|||||||This is the Parish name that 99% of the unit crops out in, and replaces the previous name for this unit. FEATHERTOP 1:50 000K. GSV Code: G153. Full description published under previous name in Morand et al (2005) 'Bogong 1:100 000 map area geological report, GSV Report 125'. Age and lithology updated from GSV data.  Intrudes the migmatite and gneiss of Omeo Metamorphic Complex, Cobungra Granite, and western edge of Pretty Valley Tonalite.|Granodiorite: quartz, plagioclase, K-feldspar, biotite, some muscovite|acid intrusive rock|||Y|I-type|04-AUG-23
Dargile Formation|5213|Christmas Hills Formation|4047|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Murrindindi Supergroup|35522|||Ludlow|||inferred, biostratigraphic correlation|deposition|Wenlock||||||1900||No|43871|60599|||||Encompasses only lower two faunal Units 1 and 2 of Thomas (1937). Superseded Dargile Beds. Rank was upgraded in 1998 - see Dargile Group, but change appears not to have been accepted by other authors. Distribution reduced in 2010 to exclude Melbourne area (now Melbourne Formation) and east of Moormbool Fault (now Humevale Siltstone). Also replaced by Humevale Siltstone in the Merriang-Wandong area.|Deep water sediment: mudstone, minor very fine-grained sandstone; laminated to thinly bedded, minor current ripples; shelly fossils (60592). Low magnetic response, with weak magnetic linear features; distinct, moderate Th, variable U (60597).|siliciclastic sedimentary rock|||N||17-JAN-23
Dargile Formation, Melbourne Formation, Humevale Siltstone|79968|Dargile Formation, Melbourne Formation, Kilmore Formation|37695|||Yes|Formation, beds|Informal|Variation of published name|Not recorded|||||Pridoli||||deposition|Ludlow||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Originally included Dargile, Melbourne and Kilmore Formations. Should be Kilmore Siltstone, which was then replaced by Humevale Siltstone..|Marine mudstone, turbiditic and reworked sandstone, storm-wave deposits|siliciclastic sedimentary rock|||N||17-JAN-23
Dargo Tonalite|69701|Dargo Granodiorite|28496|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian|387|15|isotopic, K/Ar|intrusion|Lower Devonian|402|16|isotopic, K/Ar|||||No|61172||||||Probably replaces Dargo Granodiorite as both have same Geological Survey of Victoria map code: G140. Age and lithology updated from GSV data (HG, Dec 2005).|I-type, biotite-hornblende tonalite and granite: grey, medium-grained, equigranular, massive; concentrically zoned with a core of granite surrounded by several bands of variably magnetic tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Dargo Tonalite - granite phase 79665|79665|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Dargo Tonalite|69701|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G140b.|Granite: grey, medium-grained, equigranular to porphyritic in K-feldspar; massive.|acid intrusive rock|||Y||17-JAN-23
Dargo Tonalite - tonalite phase 79664|79664|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Dargo Tonalite|69701|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G140a.|Biotite-hornblende tonalite: grey, medium-grained, equigranular to porphyritic in hornblende, massive.|acid intrusive rock|||Y||17-JAN-23
Darley Gravel|5222|Darley Gravels|77313|||Yes|Formation, beds|Formal|Other new published name|Described|||||Pleistocene||||deposition|Pliocene||||||||No|33604|||||||Gravel, sand, silt: gravel red to pale colours; rounding and sorting moderate to good; moderately consolidated.|regolith|||N||17-JAN-23
Darlington Granite|83905|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Mole, D. (GA)|26-MAY-23|||Granite sample for geochron from a drill-hole. Elliptical east-west orientated low in state-wide ground gravity dataset.Known only from two identified legacy bore/drill holes. Whole rock geochemistry and thin section to accompany pending U-Pb zircon geochronology. (Potential single legacy whole rock geochemistry in Chappell unpublished (ANU compilation). Identified as Devonian 'undifferentiated magnetic granite in the subsurface' in: Buckland, G.L. & Stuart-Smith, P.G., 2000. Willaura. 1:100 000 geological map. Australian Geological Survey Organisation. Identified as an unnamed Carboniferous-Devonian I-type intrusion in: SIMONS, B.A. & MOORE, D.H., 2000. Victoria Pre-Permian geology 1:1,000,000 map Edition 1. Geological Survey of Victoria. Formation/Where to be published = =
National Pb isotope map - Victorian data and report (see David Mole)|Coarse salmon-pink coloured subhedral K-feldspar phenocrysts (5-10mm) in what could be described as weakly porphyritic. Lesser and finer grained subhedral-euhedral white tabular plagioclase and subequant grey quartz. Weak local weathering otherwise fresh.||||Y||05-JUN-23
Darraweit Guim Mudstone|27308|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Sunbury Group|33256|||Ordovician||||deposition|Ordovician||||||45|VIC|No|39980|42826|VandenBerg, A.H.M.|04-JUL-79|||M as Siltstone 1981. Def Card for Siltstone. Publ DEF for Mudstone 1984.|Mudstone, siltstone, shale.|fine grained siliciclastic rock|||N||17-JAN-23
Darriman limestone|5230|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34815|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Darriwil granite|5234|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|37385|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Darriwilian Slate|5235|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|31706|||||||Slate|metasedimentary siliciclastic rock|||N||17-JAN-23
Dart River Volcanic Breccia|23534|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Dartella Volcanic Group|23535|||Lower Devonian||||eruption|Lower Devonian||||||100||No|39221||P.F.Bolger|05-DEC-80|||Originally had member status within Sheevers Spur Rhyodacite. Max. thickness<100m.|Scree deposits: purple-brown to grey sedimentary breccias and conglomerates, poorly sorted, with abundant clasts of Ordovician bedrock, ignimbrite, andesite, granite and limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Dartella Volcanic Group|23535|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Middle Devonian||||eruption|Lower Devonian|||||||VIC|No|39221|39221|P.F.Bolger|18-DEC-80|||See also Dartella Volcanics. Name has been used interchangeably with Dartella Volcanics. Formerly interpreted as the northern part of the Mitta Mitta Volcanics.|Subaerial caldera volcanics: rhyolitic to dacitic ignimbrite, minor lava, intracaldera sediments|acid volcanic rock|||N||17-JAN-23
Dartmouth Granite|23536|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Omeo Metamorphic Complex|14578|||Wenlock||||intrusion|Llandovery|440|||||||No|39221||P.F.Bolger|05-DEC-80|||High total count, K, Th, U in Mitta Mitta River Valley. Intruded by Banimboola Quartz Monzodiorite. Intrudes the Omeo Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005). GSC Code: G109.|Various grey colours, medium grained; granite, gneissic granite: S-type; varies from strongly banded gneiss to homogeneous granite with abundant sedimentary enclaves;|acid intrusive rock|metamorphosed acid igneous rock||Y|S-type|17-JAN-23
Davidsons Lane Formation|37540|Davidsons Lane Ignimbrite|21625|||Yes|Formation, beds|Formal|Resvd name published|Described|Timbarra Subgroup|30554|||Pragian||||deposition|Lochkovian||||||750||No|60542|||||||Sedolithic and volcanolithic conglomerate, sandstone, mudstone: mostly massive and clast supported; fluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Day Hill Syenite|34900|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|Biotite syenite, quartz syenite: leucocratic; equigranular coarse-grained |intermediate intrusive rock|||Y||17-JAN-23
Dead Bird Suite|34862|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lochkovian|||||Lochkovian|411|5||||||No|22968|||||||Hornblende-biotite diorite/granodiorite: dark grey-green, fine to medium-grained, equigranular; often strong epidote-chlorite alteration; plugs.|intermediate intrusive rock|acid intrusive rock||Y|I-type|17-JAN-23
Dead Bull Member|5297|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Tabberabbera Formation|17618|||Lower Devonian||||deposition|Lower Devonian||||||||No|33326|||||||Mudstone|fine grained siliciclastic rock|||N||17-JAN-23
Dead Cattle Gully Ignimbrite|21630|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Pragian||||eruption|Pragian||||||700||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Dark grey to black feldspar-rich ignimbrite.|acid volcanic rock|||N||17-JAN-23
Dealba Sandstone Member|74735|||||Yes|Member, phase|Formal|Variation of published name|Defined|Mount Ida Formation|27504|||Lower Devonian||||deposition|Lower Devonian||||||700||No|60599|60599|||||Corresponds to Pentamerus Beds (Thomas 1937). See also the abbreviated form, Dealba Member.|Well-sorted, thickly bedded quartzite, weathering into sugary textured rock; predominantly fine- to medium-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Deborah Back Sandstone|39642|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Deddick Rhyodacite|5313|Deddick Rhyodacites|5314|||Yes|Formation, beds|Formal|Variation of published name|Described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Pragian||||||||No|33606||||||Established by Ringwood, 1955. Described. Superseded by Deddick Lava, but name now reinstated [2011]|Porphyry dykes; quartz-feldspar (hornblende) porphyry.|acid volcanic rock|||Y||17-JAN-23
Dederang Granite|69408|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Silurian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|TAWONGA 1:50 000. Geological Survey of Victoria map code: G169. Age updated from GSV data (HG, Dec 2005). Originally mapped as part of Kergunyah Adamellite.|Muscovite-biotite granite: grey; equigranular; medium grained; much of it is foliated and mylonitized by the Kiewa Fault.|acid intrusive rock|||Y||17-JAN-23
Deenicull Schist|37541|||||Yes|Formation, beds|Formal|Other new published name|Described|Moornambool Metamorphic Complex|37578|||Late Cambrian|||||Late Cambrian||||||||No|61187||||||Of Moornambool Metamorphic Complex.|Quartz-chlorite (+/-tremolite+/-actinolite+/-biotite) schist; strongly schistose; polydeformed; numerous thin quartz veins; formed from a mix of Magdala Volcanics and Albion and Leviathan Formation precursors? low to highly magnetic.|metasedimentary siliciclastic rock|||N||17-JAN-23
Deep Creek Siltstone|5327|Deep Creek Beds|5321|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Wenlock||||deposition|Llandovery||||||800|VIC|No|33604|42826|||||Formerly considered part of Keilor Group/Jackson Creek Group.Basal unit of Murrindindi Supergroup [2003].|Siltstone and sandstone: siltstone: dark grey-green, thin to thick-bedded, strongly bioturbated; sandstone: interbedded with siltstone; thin to very thin, commonly with ripple marks; rare conglomerate and diamictite; contains rare graptolites.|siliciclastic sedimentary rock|||N||17-JAN-23
Deep Creek Siltstone, Costerfield Siltstone|37692|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Wenlock|||biozone|deposition|Bolindian|||biozone|||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Deep Creek and Costerfield Siltstones (nee Formations).|Marine mudstone, minor sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Deer Park basalt|72942|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|61186||||||Informal name for Victorian dimension stone. Probably named for the quarry locality.||basic volcanic rock|||N||17-JAN-23
Delatite Group|21636|||||Yes|Group, Suite|Formal|Resvd name published|Described|Avon Supergroup|35960|||Givetian|||inferred, biostratigraphic correlation|deposition|Givetian|||inferred|deposition||||No|22729||VandenBerg, A.H.M.|07-SEP-94|||Hosts the Gannons gold prospect. Fission track of 197 +/- 18 Ma from GSV report 127 (2006). Unclear what event this might be recording. Age based on fossil fish fauna in Kevington Creek Formation.|Fluvial conglomerate, sandstone, red mudstone, subaerial ignimbrite.|siliciclastic sedimentary rock|||N||17-JAN-23
Delburn sandstones|5348|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||deposition|||||||||No|42827|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-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
Dellicknora Granite|24913|Dellicknora Adamellite|23542|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Dalgety Suite|5143|Wenlock||||intrusion|Llandovery||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G70 |S-type cordierite-biotite monzogranite|acid intrusive rock|||Y|S-type|17-JAN-23
Demon Ridge Andesite Porphyry|37523|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian||||eruption|Lower Devonian||||||||No|61174||Vandenberg, A.H.M.|20-SEP-02|||Used on the BUFFALO 1:100 000 sheet and report and associated 1:50 000 sheets. Geological Survey of Victoria map code: G190. Age and lithology updated from GSV data (HG, Dec 2005).|Andesite porphyry: abundant phenocrysts of hornblende, glomerocrysts of plagioclase, rare quartz in a fine-grained recrystallised granoblastic groundmass of biotite, feldspar and quartz; hornblende partly replaced by actinolite and biotite|intermediate volcanic rock|||Y||05-SEP-23
Demons Bluff Group|36796|Demons Bluff Formation|5362|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Oligocene||||deposition|Eocene||||||||No|23778||||||Defined as Demons Bluff Formation in 1955 (Raggatt and Crespin). Renamed Demons Bluff Group by Trupp et al.in 1994 (APPEA J). Also a Tasmanian unit - in Bass Strait.|Carbonaceous pyritic silt to fine sand, clay, and clayey sand; contains occasional shelly fossils and glauconite.|fine grained siliciclastic rock|regolith||N||17-JAN-23
Den Hills Formation|41196|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Coleraine Volcanic Group|41194|||Middle Jurassic|156|2|isotopic, K/Ar|deposition|Middle Jurassic|163|3|isotopic, K/Ar|||100||No|50160|50154||||||Domes and laccoliths: trachyte, phonolite and microsyenite; cream to dark grey equigranular to sanidine-phyric. Lava flows: trachyte, phonolite; cream to dark grey, fine grained; common flow foliation.|intermediate volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Denicull Formation|35340|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Loddon River Group|35339|||||||deposition|||||||||No|24105||||||Unit created by Hughes, Carey & Kotsonis (1999) in Regolith '98 [to be indexed soon]. It is equivalent to Calivil Formation, but in Ararat area.|||||N||17-JAN-23
Dennington Sand|5377|Dennington Aeolianite|5376|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Quaternary||||deposition|Quaternary||||||||No|31004|||||||Aeolian sand|regolith|||N||17-JAN-23
Dergholm Granite|27389|Dergholm granite|5389|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Upper Ordovician|450|||intrusion|Lower Ordovician|485|5|isotopic, K/Ar|||||No|30928|50154|||||Intrudes the Nangeela Formation, Ferres Creek Tonalite & Truro Volcanics. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: 424|Magnetic to non-magnetic, pink, medium to coarse grained, biotite granite: massive, equigranular to weakly porphyritic in alkali feldspar; accessory magnetite and fluorite|acid intrusive rock|||Y|A-type|17-JAN-23
Derndang Granite|30530|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|03-OCT-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G17|Very highly magnetic, pink, medium grained, massive, leucocratic, K-feldspar rich, minor biotite granite|acid intrusive rock|||Y||17-JAN-23
Descartes Bay Member|78965|||||Yes|Member, phase|Reserved|Reserved|Fully described|Bridgewater Formation|2543|||Pleistocene|.374||inferred, overlying unit|deposition|Pleistocene|.424|||||3||No|||Lipar, M., Webb, J.A. La Trobe University|02-SEP-14|||Probably deposited in Marine Isotope Stage 11. Definition card incomplete.|Pale yellow coloured, weakly to well cemented, fine to coarse grained, well sorted limestone (calcarenite)|carbonate sedimentary rock|||N||17-JAN-23
Detarka Ignimbrite|24916|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||120||No|41585||||||Murrindal area.|Fine grained mainly feldspathic ignimbrite, dark green but may vary in colour.|acid volcanic rock|||N||17-JAN-23
Deutgam Silt|23545|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pleistocene||||deposition|Pliocene||||||||No|37385||VandenBerg, A.H.M.|16-APR-71||||Reddish-brown, poorly-bedded silty and sandy clay with minor sand and gravel.|regolith|||N||17-JAN-23
Devils Creek Diorite|35514|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||VandenBerg A.H. M.|22-MAY-00|||Mount Buffalo 1:100 000 sheet area.|Diorite|intermediate intrusive rock|||Y||17-JAN-23
Devils Den Conglomerate|29205|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Snowy River Volcanic Group|28138|||Pragian||||deposition|Lochkovian||||||500||No|41585|23615|VandenBerg, A.H.M.|29-JAN-88|||Murrindal area.|Conglomerate, breccia, sandstone, minor siltstone, shale.|siliciclastic sedimentary rock|||N||10-SEP-23
Devils Plain Siltstone Member|74895|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Snowy Plains Formation|17054|||Neogene||||deposition|Neogene||||||||No|64606||||||See misspelt Devil's Plain Siltstone Member.|Mudstone, minor sandstone: alluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Devonian felsic volcanics 76550|76550|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|355|||eruption|Upper Devonian|375|||||||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
Devonian granites 76551|76551|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Devonian|356|||intrusion|Lower Devonian|400|||||||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
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 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 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
Dicks Creek Ignimbrite|30557|Dick Creek Ignimbrite|21657|||Yes|Formation, beds|Formal|Resvd name published|Described|Timbarra Subgroup|30554|||Pragian||||eruption|Ludlow||||||250||No|43206||||||Murrindal area.|Feldspar ignimbrite: pink vitric matrix with minor quartz phenocrysts; wispy pumice fragments.|acid volcanic rock|||N||17-JAN-23
Digger Island Marlstone|37267|Digger Island Limestone|5477|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Ordovician||||deposition|Lower Ordovician||||||||No|23309|||||||Limestone, calcareous siltstone; basal conglomerate with chert and igneous rock fragments overlain by thick bedded dolomites with 'brecciated' tops, interbedded with breccia; most of the formation consists of thinly bedded, muddy limestone.|carbonate sedimentary rock|||N||17-JAN-23
Dilwyn Formation|5489|Dilwyn Clay|5486|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wangerrip Group|19406|||Lutetian||||deposition|Ypresian||||||1000|VIC|No|71437|31036|||||Of Bock and Glenie (1965) after Dilwyn Clay of Baker (1953). Otway Basin, Gambier Basin. Onshore areas in Victoria have been reassigned (VandenBerg 2009) to the Wiridjil Gravel (majority of exposures) or Moomowroong Sand.|Composed mainly of dark brown, carbonaceous sandy clay and silt, interbedded with fine- to medium-grained, clean to clayey sand, with minor coarse sand and gravel.|fine grained siliciclastic rock|regolith||N||17-JAN-23
Dimboola Igneous Complex|35519|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Early Cambrian||||eruption|Early Cambrian||||||||No|23309||VandenBerg A. H. M.|22-MAY-00|||Used in the Tasman Fold Belt System in Victoria Special Publication.|Altered mafic to ultramafic lava, including low-Ti boninite|basic volcanic rock|ultramafic volcanic rock||N||17-JAN-23
Dingo Hill Lava|21665|||||Yes|Formation, beds|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Composed of pale red to greyish-orange or pink rhyolite lava with quartz and altered orange feldspar phenocrysts in a glassy groundmass.|acid volcanic rock|||N||10-SEP-23
Dinner Hill Gap Lava|21666|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Timbarra Subgroup|30554|||Pragian||||eruption|Ludlow||||||120||No|43206||Orth K|30-NOV-89|||Murrindal area.|Composed of small rhyolite bodies and flanking breccia.|acid volcanic rock|||N||17-JAN-23
Dinner Plain Tonalite|69409|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Falls Creek Suite|69698|Lower Devonian||||intrusion|Lower Devonian||||||||No|61167||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|FALLS CREEK and COBUNGRA 1:50 000. Geological Survey of Victoria map code: G167. Age and lithology updated from GSV data (HG, Dec 2005).|I-type intrusion. Biotite tonalite: light grey, medium to coarse-grained, equigranular; unfoliated; variably magnetic. |acid intrusive rock|||Y|I-type|17-JAN-23
Discovery Bay Sands|5530|Discovery Bay sands|5531|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Quaternary||||deposition|Quaternary||||||||No|34988|||||||Sand|sediment|||N||17-JAN-23
Dja Dja Wrung Supergroup|39124|||||Yes|Supergroup|Formal|Resvd name published|Defined|||||Cambrian|||inferred||Cambrian|||inferred||||VIC|Yes|68189|64612|Moore, D.H.|18-SEP-03|VandenBerg, F.|18-SEP-03|Age inferred. All outcropping constituents are considered to be Early to Middle Cambrian (older than Knowsley East Shale)|Basaltic ocean floor rock units that were erupted and intruded.|basic volcanic rock|||N||17-JAN-23
Doctors Flat Tonalite|34820|Doctors Flat Granite|5555|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ensay Suite|34902|Lower Devonian|412|13||intrusion|Lower Devonian|413|16||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite and granodiorite: grey; medium to coarse-grained; rare phenocrysts; massive to foliated; sporadic small mafic igneous enclaves, I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Dog Trap Bay Sand|77690|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Pleistocene|.23|||deposition|Pleistocene|.42||||0|15||No|68991||Williams, G.E. (Uni of Adelaide)|09-JAN-13|||Pleistocene alluvial clayey sand 0-15 m thick. Best exposed in coastal cliffs at Dog Trap Bay, 22km SE of Warrnambool. For publication in AJES 2013. (G. Williams and V. Gostin, Univ. of Adelaide, Jan 2013).|Comprises consolidated but readily eroded, pale yellowish grey to pale and dark grey and brown, clayey, medium quartz sand, with minor coarse and fine quartz grains and some prominent more clayey bands commonly 2-5 cm thick.|regolith|||N||17-JAN-23
Dolodrook Limestone|5574|Dolodrook limestone|5576|||Yes|Formation, beds|Formal|Other new published name|Described|Gervey Gully Sandstone|34696|||Late Cambrian||||deposition|Middle Cambrian||||||||No|46053||||||See also Lexicon. Geo.Vic. refers to Dolodrook Limestone as interbedded with Garvey Gully Sandstone - not a member. In the past was assumed to be unit within Garvey Gully Formation (VandenBerg et al. 2000). However, mid-Ordovician graptolites in the Garvey Gully Formation and Cambrian fossils in the Dolodrook Limestone Member led Brock & Talent (1999) to regard the latter as allochthonous blocks.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Donald Granite|70243|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Chappell B.W.|05-APR-06|||St Arnaud 1:250k, Donald 1:100k (7425). Name used for granite in Geochem data set that plots where no granite is shown on  1:1mill map. Used by FIGS project (Dave Champion).|Granite|acid intrusive rock|||Y||17-JAN-23
Doncaster Siltstone|5597|Doncaster siltstone|5598|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock||||deposition|Wenlock||||||||No|33020|||||||Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Donna Buang Rhyodacite|5607|Donna Buang Hypersthene Rhyodacite|5606|||Yes|Member, phase|Informal|Unknown or process pending|Briefly described|||||Upper Devonian||||eruption|Upper Devonian||||||1000||No|35277||||||Is listed without the Hypersthene in Surface Geology of Victoria 1:250 000 (2011). See also Donna Buang Ignimbrite.|Rhyodacite: light to dark grey according to degree of crystallization; phenocrysts of plagioclase, biotite, enstatite, rare quartz and K-feldspar; groundmass coarsens towards the top; contains large lithic fragments of underlying rhyodacite.|acid volcanic rock|||N||17-JAN-23
Donnellys Creek Siltstone|27761|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Jordan River Group|9028|||Aeronian||||deposition|Rhuddanian||||||450||No|38787|||||||Siltstone, minor sandstone: deep-marine deposits. Dark grey to green grey, finely banded and bioturbated siltstone; rare sandstone, very thinly bedded; deep marine hemipelagic and mass flow deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Dookie Igneous Complex|37545|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Cambrian||||eruption|Cambrian|507|.7|isotopic, U/Pb-Pb/Pb, TIMS|||||No|23309||||||See Dookie gabbro, Dookie igneous complex..|Tholeiitic metabasalt and metagabbro, sedimentary rocks including mainly chert and quartz-albite beds, probably volcanic ash, with rare detrital quartz grains and sponge spicules.|basic volcanic rock|basic intrusive rock||Y||17-JAN-23
Doonarlik Ignimbrite|21683|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Pragian||||eruption|Pragian||||||130||No|43206||Orth K.|06-MAY-91|||Murrindal area.|A distinctive lithology, with euhedral and broken white to light green feldspar crystals set in dark welded groundmass.|acid volcanic rock|||N||17-JAN-23
Double Bull Granodiorite|37716|Double Bull Granite|26524|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bete Bolong Suite|1540|Lower Devonian||||intrusion|Late Silurian||||||||No|60542||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G56|Hornblende granodiorite: grey-green, coarse-grained, weathered; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Doughboy Island Granite|5658|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005).|S Type granite|acid intrusive rock|||Y|S-type|17-JAN-23
Douglas Ignimbrite|21688|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|White Monkey Volcanic Group|68411|||Lower Devonian||||eruption|Lower Devonian||||||180||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Feldspar ignimbrite: brown with minor quartz phenocrysts and abundant red pumice fragments.|acid volcanic rock|||N||17-JAN-23
Doutta Galla Silt|5678|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Holocene||||deposition|Pleistocene||||||||No|71203|||||||Silt|sediment|||N||17-JAN-23
Doyle Gully Ignimbrite|21692|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Lower Devonian||||eruption|Silurian||||||200||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Consistently feldspathic with minor visible quartz, containing distinctive angular, green clasts and abundance of lithic fragments, variable in colour.|acid volcanic rock|||N||17-JAN-23
Dromana Granite|5705|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Dromana Suite|5706|Upper Devonian||||intrusion|Upper Devonian||||||||No|71205||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G262. Green-brown dimension stone used in the church in Wangaratta. Granite is medium-grained with no xenoliths; variable in colour.|Biotite granite: greenish, medium-grained, equigranular granite containing quartz, greenish orthoclase, perthite, oligoclase and biotite with accessory sphene, zircon, ilmenite and apatite; intruded by dykes of porphyry and aplite.|acid intrusive rock|||Y|I-type|17-JAN-23
Dromana Suite|5706|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian|||||Middle Devonian||||||||No|42827|||||||||||Y||17-JAN-23
Drummer Granodiorite|26527|Drummer Granite|5711|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Drummer Suite|5712|Lower Devonian||||intrusion|Lower Devonian||||||||No|30574||||||Age and lithology updated from GSV data (HG, Dec 2005).  See also Drummer Granite. GSV Code: G16|Highly magnetic, grey, medium to coarse grained, massive, compositionally zoned, biotite-hornblende granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Drummer Suite|5712|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian||||intrusion|Lower Devonian||||||||No|42827|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Dry Gully Granodiorite|69423|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G468. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite; fine to medium-grained, porphyritic; with large euhedral plagioclase phenocrysts in a groundmass of quartz, plagioclase, K-feldspar, biotite, muscovite. I-type intrusion.|acid intrusive rock|||Y|I-type|17-JAN-23
Dry Hill Granodiorite|34852|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Polar Star Suite|34903|Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|I-type; Biotite granodiorite: grey; medium-grained; massive to strongly foliated; minor fine-grained granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Duchembegarra Granite|37546|Duchembegarra Tonalite|37548|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Devonian|404|6||||||No|23309||||||Also referred to as Duchembegarra Tonalite.|Granite/tonalite|acid intrusive rock|||Y||17-JAN-23
Duck Bay Volcanics|40269|||||Yes|Formation, beds|Formal|Variation of published name|Described|Strzelecki Group|17440|||Tithonian||||eruption|Tithonian||||||||No|23911||||||In Gippsland Basin. See also Duck Bay Basalt.|Mafic volcanics.|basic volcanic rock|||N||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
Duggan Creek Granite|30285|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60507||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Age is inferred. Intrudes Marengo Granodiorite. Age and lithology updated from GSV data (HG, Dec 2005)|Grey rock comprising equigranular, medium-grained feldspar and quartz with small flakes of biotite.|acid intrusive rock|||Y|A-type|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
Duluth Gabbro|37359|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|24037|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Dundas Surface|28518|Dundas Laterite|5818|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||Piacenzian|||||Piacenzian||||||50||No|38982||||||Weathering profile rather than stratigraphic unit. Developed on Miocene sand dunes prior to Newer Volcanic Group basalt flows.|Ferricrete and magnetic pisolitic ironstone.|regolith|||N||17-JAN-23
Dundonnell Granite|21708|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleozoic||||intrusion|Paleozoic||||||||No|23309||Edwards J., O'Shea P.J.|14-DEC-94|||Requested by Fons VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005). See also the misspelt Dundonell Granite (I-type).|Hornblende-biotite granite: medium-grained, grey; subsurface only |acid intrusive rock|||Y|I-type|17-JAN-23
Dungeon Gully Sandstone Member|74890|Dungeon Gully Sandstone|69617|||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Snowy Plains Formation|17054|||Tournaisian||||deposition|Tournaisian||||||||No|64606||||||Reserved as Dungeon Gully Sandstone (VandenBerg, F. 2005).|Red sandstone, quartz-lithic and quartzarenite, medium- to thick-bedded; minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Dunmore Leucotonalite|33134|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Cambrian||||intrusion|Middle Cambrian||||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria. Age and lithology updated from GSV data (HG, Dec 2005)|White to pale green muscovite tonalite: foliated, coarse grained, equigranular with rare biotite; pervasive schlieric foliation; abundant enclaves of gneiss and migmatite.|acid intrusive rock|||Y|S-type|17-JAN-23
Dunneworthy Granodiorite|21713|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian||||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G383|Pale grey; medium grained, biotite granodiorite: strongly kaolinised in places|acid intrusive rock|||Y|I-type|17-JAN-23
Duquesne Member|78700|||||Yes|Member, phase|Reserved|Reserved|Defined|Bridgewater Formation|2543|||Pleistocene|.206|.02|luminescence|deposition|Pleistocene|.26|.03|luminescence||||VIC|Yes|||Lipar, M. (La Trobe University)|19-FEB-14|||Lithological Descriptor = aeolian calcarenite Map Sheet = SJ5407. Nearest Town = Cape Bridgewater. Brief description = A fine to coarse grained well sorted aeolianite. It is grey to yellow coloured, uncemented to well cemented. It has distinctive cross-bedding. In general it contains carbonate, quartz, and minor amount of feldspar. Deposited in Marine Isotope Stage 7. To be published = Year 2014 or 2015; most probably Australian Journal of Earth Sciences.|Grey to yellow, fine to coarse grained well sorted aeolian calcarenite.Uncemented to well cemented.Distinctive cross-bedding. Generally contains carbonate, quartz, and minor amount of feldspar|carbonate sedimentary rock|||N||17-JAN-23
Dwyer Granite|75538|Victoria Valley Granite|19112|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Middle Devonian|392|5|isotopic, K/Ar|intrusion|Middle Devonian|392|5|isotopic, K/Ar|||||No|66002||Cayley, R.|12-OCT-09|||BD in RefID 66002 GSV Report 130, 2009. To replace Victoria Valley Granite, to better distinguish the Granite from the Batholith. Note: Victoria Valley (now Dwyer) Granite G399, Mirranatwa Granite G402, and Bullawin Porphyry G403 replace the Victoria Valley Granite 751, Long Reach Granite 751 and Green Hill Granite 752 of Chappell et al 1991. Radiometric age from Victoria Valley Granite (Richards and Singleton, 1981) [GSV Report 107, p60]|Felsic, oxidised, A-type hornblende biotite monzogranite to granite; fine to medium grained, generally porphyritic, reddish to pinkish grey; often strongly granophyric, miarolitic cavities; flow folded and banded rhyolitic dykes.|acid intrusive rock|||Y||05-SEP-23
Dysentery Tonalite|34706|Dysentary Granite|5890|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bete Bolong Suite|1540|Lower Devonian||||intrusion|Late Silurian||||||||No|60541||||||Probably supersedes Dysentery Granite. Previously mapped as Orbost Granodiorite (Beams and Hough 1979) - also referred to as Orbost Granite. The eastern-most pluton of Bete Bolong Suite. Age and lithology updated from GSV data (HG, Dec 05). GSV Code: G48|Coarse grained, hornblende, I-type, biotite tonalite with abundant mafic inclusions.|acid intrusive rock|||Y|I-type|17-JAN-23
Eagle Point Sand Member|5892|Eagle Point Sands|5894|||Yes|Member, phase|Formal|Other new published name|Described|||||Pliocene||||deposition|Pliocene||||||||No|35273||||||Geol. Prov: onshore Gippsland Basin. Of Haunted Hill Gravel.|Sand|sediment|||N||17-JAN-23
Eagles Peak Basalt|37551|Eagle Peaks Basalt|21720|||Yes|Formation, beds|Formal|Resvd name published|Described|Lickhole Volcanic Group|37572|||Cambrian||||eruption|Cambrian|502|1|||1500|2000||No|23309||||||Of Lickhole Volcanic Group.|Tholeiitic pillow basalt, intruded by dolerite and gabbro; weakly deformed in prehnite-pumpellyite metamorphic facies.|basic volcanic rock|||N||17-JAN-23
Early Cambrian mafic volcanics 76519|76519|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Early Cambrian|510|||eruption|Early Cambrian|545|||||||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
East Kiewa Granodiorite|5900|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Falls Creek Suite|69698|Lower Devonian|410|16||intrusion|Lower Devonian|422|||||||No|29711||||||Geological Survey of Victoria map code: G151. Combines Rocky Valley Granodiorite and Spion Kopje Quartz Diorite which are still in use on the Nat Geol Maps 1:1mill Victoria 2005 map. Intrudes Omeo Met. Complex migmatite and Cobungra Granite.|Biotite granodiorite: grey, medium grained, equigranular; some muscovite-bearing phases; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Eastern View Formation|5924|Eastern View formation|5927|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Wangerrip Group|19406|||Eocene|55|||deposition|Campanian|75|||||360||No|30929||||||Defined (as Eastern View Coal Measures) by Raggatt and Crespin (1955). Redefined as Eastern View Formation (Abele 1968) to include Boonah Sandstone. Raised to Group status (Trupp et al. 1994) with Boonah Sandstone reinstated. Reduced to Formation status including Boonah Sandstone/Formation (VandenBerg 2009).|Mudstone, sandstone, conglomerate, lignite: mudstone pale brown; sandstone fine-grained to granule size; consists of quartz, poorly to moderately sorted; conglomerate uncommon; lignite black to brownish black; commonly impure.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Easts Lookout Siltstone|74887|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Walhalla Group|19233|||Emsian||||deposition|Pragian|||||||VIC|No|64606|||||||Siltstone, sandstone, minor shale: siltstone dark green-grey to occasionally black; thinly bedded, shaley; minor black shale; sandstone pale grey; thin- to occasionally medium-bedded; very fine to medium-grained; well sorted; quartz-rich.|siliciclastic sedimentary rock|||N||11-SEP-23
Easts Lookout Siltstone, Wilson Creek Shale|79662|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Emsian||||deposition|Pragian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014), map symbol Dne-Sji.|Cordierite hornfels and spotted black shale and grey siltstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Eccles basalt|5940|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||eruption|||||||||No|34988|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Eckersley Volcanics|5946|Eckersley volcanics|5947|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|32852|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Eight Mile Creek Granodiorite|75781|Eight Mile Creek Granite|6008|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|||Morand, V. (GSV)|22-OCT-10|||Termed "the granite at Eight Mile Creek" by Bolger et al (1983), and is now under 200 m of water in Dartmouth Dam, but we have a description from Bolger et al. (1983)  that says it is granodiorite, so this new name will be used in Seamless Geology of Eastern Victoria for GSV unit G118 (V. Morand OCT-2010)|I-type granite, granodiorite.|acid intrusive rock|||Y|I-type|26-SEP-23
Eight Mile Loop Rhyolite|30952|||||Yes|Formation, beds|Formal|Resvd name published|Described|Dartella Volcanic Group|23535|||Lower Devonian||||eruption|Lower Devonian||||||||No|60503||VandenBerg, A.H.M.|12-FEB-97|||Benambra 1:100 000 sheet area. Nonmagnetic response complicated by underlying granites.|Scattered outcrops of grey to light brown rhyolite which are part of a small lava body; generally massive but shows flow-banding - very fine-grained matrix of plagioclase with some quartz.|acid volcanic rock|||N||17-JAN-23
Eildon Sandstone|6016|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Jordan River Group|9028|||Pragian||||deposition|Lochkovian||||||500|VIC|No|70933|33601|||||Previously Eildon Beds and Eildon Group.|Sandstone, siltstone: sandstone mid- to pale grey; thick to thin-bedded; medium to fine-grained; poorly sorted; turbidite beds with convolute lamination; siltstone mid- to dark grey; thin to thick-bedded; banded to bioturbated; rare black shale.|siliciclastic sedimentary rock|||N||06-SEP-23
Eleven Bob Granodiorite|37718|Eleven Bob Granite|24948|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|44185||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G55|Hornblende-biotite granodiorite: grey-green, medium-grained, extremely weathered where exposed; northern margin is altered; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Elizabeth Street Formation|6071|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|29982|||||||||||N||17-JAN-23
Ellery Granite|6095|Ellery Adamellite|26536|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ellery Suite|6097|Middle Devonian||||intrusion|Lower Devonian|386|3|isotopic, Rb/Sr|||||No|33602||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G37. Not to be confused with Ellery nomenclature of Northern Territory.|Biotite-amphibole granite: coarse to medium grained, porphyritic.|acid intrusive rock|||Y||17-JAN-23
Ellery Suite|6097|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Wenlock||||intrusion|Wenlock||||||||No|42827||||||Includes all A-types west of the Bega Batholith.|Granite|acid intrusive rock|||Y||17-JAN-23
Elmhurst Granite|21743|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian||||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granite: pale grey; felsic; fine to medium grained. I Type|acid intrusive rock|||Y|I-type|17-JAN-23
Emperor Subgroup|32290|||||Yes|Subgroup|Formal|Resvd name published|Described|Latrobe Group|10217|||Coniacian||||deposition|Turonian||||||1500||No|13323||Partridge A.D.|02-FEB-98|||Oldest subgroup of Latrobe Group.  Not known if published by originator? (PPOct2005).|Contains gas producing sandstones. Non-marine to paralic clastics.|siliciclastic sedimentary rock|||N||17-JAN-23
Emu Vale Tonalite|34857|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ensay Suite|34902|Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|I-type, Hornblende-biotite tonalite: grey, altered to pink or green; medium-grained; porphyritic in wafer-thin hornblende which defines weak magmatic foliation.|acid intrusive rock|||Y|I-type|17-JAN-23
Enano Group|24268|Cowombat Group|4805|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Late Silurian||||eruption|Ludlow||||||3000|VIC|Yes|37501|39447|VandenBerg, A.H.M.|21-MAY-79|Vic SNSC|26-SEP-79|Includes Thorkidaan Volcanics, Cowombat Siltstone and Gibsons Folly Formation.  Geological Province: Limestone Creek Graben.|Submarine volcanics and clastics deposited as turbidites and mass flows.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Enfield Granite|6183|||||Yes|Formation, beds|Formal|Other new published name|Described|||Enfield Suite|31575|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Intrudes Kuark Metamorphic Complex. GSV Code: G40|Hornblende-biotite granite: medium-grained; I-type.|acid intrusive rock|||Y|I-type|05-SEP-23
Enfield Suite|31575|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Ensay Suite|34902|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lochkovian|||||Pridoli||||||||No|22968||||||Formerly a part of Fagan's (1979) Falls Creek Series. Restricted to 4 plutons in the Ensay Shear Zone. Possibly obsolete?|||||Y||17-JAN-23
Epacris Hills Granite|6218|Stony Creek Granite (VIC)|37717|||Yes|Formation, beds|Formal|Other new published name|Described|||Mafeking Suite|10993|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||First used in White and Chappell 1988. Described in Cayley and Taylor (2001), replacing Stony Creek Granodiorite of Spencer-Jones (1965) which they erroneously stated to be informal. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code : G397|Felsic, oxidised, medium to coarse grained, pale pinkish grey, equigranular to porphyritic, I-type, hornblende-biotite granite|acid intrusive rock|||Y|I-type|17-JAN-23
Ercildoun Granite|6227|||||Yes|Formation, beds|Formal|Other new published name|Described|||Beckworth Suite|1351|Upper Devonian|359|4|isotopic, K/Ar|intrusion|Middle Devonian|364|10|isotopic, Rb/Sr|||||No|42726||||||Name introduced by White and Chappell, 1988, p435). Now defined in Taylor et al.(2000) and includes the Bolton and Beckworth Granites (of White and Chappell, 1988) and Misery Granite (Egan, 1981), parts of the same pluton separated by cover of Newer Volcanics. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G312|Nonmagnetic, medium grained, leucocratic, biotite granite, reduced I-type, commonly porphyritic in quartz, plagioclase and K-feldspar|acid intrusive rock|||Y|I-type|17-JAN-23
Erindale Granite|30464|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|60599||Wohlt K.|03-SEP-96|||Heathcote area. Age and lithology updated from GSV data (HG, Dec 2005).  Intrudes Castlemaine Group sediments.|Leucogranite: nonmagnetic; medium-grained, equigranular; consists of quartz, muscovite pseudomorphing biotite, sericite. |acid intrusive rock|||Y||17-JAN-23
Ernebank Granite|26538|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Errinundra Group|28537|Errinundra Beds|6246|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Emsian|||inferred, biostratigraphic correlation|deposition|Pragian|||inferred, biostratigraphic correlation|||||No|40761||||||In the Mallacoota Gold province. Originally named Errinundra Beds by Cochrane (1982). The Group was formally named in the Bendoc Explanatory Notes - VandenBerg, A.H.M., NOTT, R.J. & GLEN, R.A., 1992. BENDOC 1:100, 000 Map Geological Report. Geological Survey Reports 90, 121 p.) and this established priority over Errinundra Granodiorite of White and Chappell (1988) for an intrusion in the same area; thus it was renamed Tommy Roundhead Granodiorite (advised per email F.Vandenberg, 6/11/08)|Marine volcaniclastic sediments, sandstone, limestone, black shale|siliciclastic sedimentary 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
Eumeralla Formation|6363|||||Yes|Formation, beds|Formal|Other new published name|Defined|Otway Group|14685|||Albian||||deposition|Aptian|||||2743|3000||No|48911|50154|||||Defined SA & Vic Reynolds et al. (1966). Of Otway Group, Vic, 1994. Stated to be within the Otway Supergroup in RefID: 22674 and 44133, but of Otway Group in 2009 GSV report 129 and most other references. Use of name extended to Early Cretaceous arkoses of Gippsland by VandenBerg et al (2006), as they are part of the same fluvial depositional system, but Gippsland Basin name Wonthaggi Formation restored in Morand (2010). Previously of Crayfish Group.|Volcanilithic sandstone, siltstone, mudstone, mud-clast conglomerate, with feldspar and quartz grains, and coal: fine to medium grained, consolidated, well-bedded, cross-bedded; braided stream deposits.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Eumeralla Supersequence|73285|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Phimopollenites pannosus|96.6||biozone|deposition|Pilosisporites notensis|117||biozone|||2300||No|63134|63134|Ryan, D.J.|15-MAY-07|||Sequence marks the onset of thermal subsidence following initial continental rifting and half-graben growth.age: Barremian- Cenomanian|Sequence comprises chloritic, micaceous and carbonaceous claystone and volcaniclastic and feldspathic sandstone.|siliciclastic sedimentary rock||continental rift|N||17-JAN-23
Euroa Volcanic Group|76925|Euroa mafic volcanics|69853|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Cenozoic||||eruption|Cenozoic||||||||No|66244||||||Formerly Euroa mafic volcanics (Paul et al. 2005) to encompass all the Cenozoic mafic volcanics in the Euroa area. Upgraded to Group status because of its three member units. Includes Killeen, Seven Creeks and Balmattum Basalts. A single date on Seven Creeks Basalt: 6.8 Ma. Other units assumed to be similar age, but undated.|Mafic volcanics.|basic volcanic rock|||N||17-JAN-23
Eustace Creek Granodiorite|23584|Eustace Creek Diorite|6398|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Devonian|403|16||intrusion|Lower Devonian|440|9||||||No|39221||P.F.Bolger|05-DEC-80|||Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende granodiorite, quartz diorite: foliated, medium-grained. I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Everard Granite|26542|Everard Adamellite|6406|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Everard Suite|6408|Lower Devonian||||intrusion|Late Silurian||||||||No|42827||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: Dg11|I-type granite; fractionated|acid intrusive rock|||Y|I-type|17-JAN-23
Everard Suite|6408|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian|||||Lower Devonian||||||||No|42827||||||||acid intrusive rock|||Y||17-JAN-23
Eversley Granite|6427|Eversley Granodiorite|21764|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian|389|12|isotopic, U/Pb|||||No|42726||||||See also informal Eversley granite. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite: pale grey; medium grained; felsic; slightly porphyritic; outer biotite-rich parts are highly weathered |acid intrusive rock|||Y|I-type|17-JAN-23
Everton Granodiorite|27771|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|70910||||||Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende-biotite granodiorite: fine-grained, pink K-feldspar phenocrysts, accessory magnetite, allanite, sphene, apatite, zircon and fluorite.|acid intrusive rock|||Y||17-JAN-23
Exalt Member|34014|||||Yes|Member, phase|Formal|Other new published name|Defined|Rintoul Creek Formation|34021|||Hauterivian||||deposition|Valanginian||||||200||No|22476|22476||||||Siliceous, interbedded sandstones and shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Fainting Range Ignimbrite|29835|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Mount Elizabeth Caldera Complex|34812|||Lochkovian||||eruption|Lochkovian||||||||No|43284||Simpson C., Sims J.|25-JUL-95|||Mount Elizabeth area. Previously correlated with rocks of the Tara Range Subgroup, Snowy River Volcanics.|Vitric ignimbrite: black; pumiceous; up to 10% feldspar and rare quartz phenocrysts.|acid volcanic rock|||N||17-JAN-23
Fairview Andesite Breccia|38063|Fairview Andesitic Breccia|24273|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Mount Stavely Volcanic Complex|13108|||Late Cambrian||||eruption|Late Cambrian|502|12||||||No|23402||||||Defined as Fairview Andesitic Breccia by Buckland (1986). That name, as well as this variation (Fairview Andesite Breccia), have both been used since; the latter form appears to be the official GSV preference (VandenBerg 2009).|Massive andesitic breccia, minor andesite and basalt lava flow|intermediate volcanic rock|||N||05-SEP-23
Fairy Sandstone|30548|Fairy Formation|6503|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Little River Subgroup|22204|||Pragian||||deposition|Lochkovian||||||550||No|43206||||||Murrindal area.|Tuff, ignimbrite, sandstone, siltstone, breccia, conglomerate: generally thin-bedded; pyroclastic and fluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Faithfuls Leucogranite|69410|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||intrusion|Early Silurian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G157. Age updated from GSV data (HG, Dec 2005).|Garnet-sillimanite-cordierite leucogranite. S-type intrusion. Contains large (2cm) dark round clots of biotite, muscovite and quartz in a medium-grained groundmass of feldspar and quartz.|acid intrusive rock|||Y||17-JAN-23
Falls Creek Suite|69698|Falls Creek Series|69805|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61164||||||Formerly the Falls Creek Series of Fagan (1979). Not to be confused with the Falls Creek nomenclature of Queensland (Falls Creek Tonalite).|I-type granite, granodioirte, tonalite.|acid intrusive rock|||Y||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
Federal Basalt|39627|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||eruption|||||||||No|24087|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Feltis Farm Tonalite|28549|Feltis Farm Granite|23589|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bete Bolong Suite|1540|Upper Devonian|369|4|isotopic, K/Ar|intrusion|Late Silurian||||||||No|42647||||||Murrindal area. Part of this intrusive pluton is of the Bete Bolong Suite. The magnetics suggest a multiphase intrusive history for this unit. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G47. K/Ar age likely to reflect argon loss.|Coarse grained, hornblende-biotite tonalite.|acid intrusive rock|||Y|I-type|05-SEP-23
Fern Hill Microgranite|41193|||||Yes|Formation, beds|Formal|Other new published name|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||intrusion|Lower Devonian||||||||No|50160|50154||||||Leucocratic microgranite: granophyric, medium grained; pink; weakly porphyritic in alkali feldspar|acid intrusive rock|||Y||17-JAN-23
Ferny Creek Rhyodacite|6619|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Dandenong Ranges Igneous Complex|37539|||Upper Devonian|370|13||eruption|Upper Devonian|376|6||||400||No|33598|||||||Biotite-hypersthene rhyodacite ignimbrite: recrystallized; chilled glassy base shows traces of eutaxic foliation parallel to the sediment band below; becomes increasingly crystalline and phenocryst-rich upwards.|acid volcanic rock|||N||17-JAN-23
Ferres Creek Tonalite|37242|Ferres Creek Tonalite""|37239|||Yes|Formation, beds|Formal|Variation of published name|Defined|Caupaul Igneous Complex|37235|||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|23309|50154|||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G423|Grey biotite-hornblende tonalite: foliated, medium to coarse grained, equigranular; accessory quartz microcline, magnetite and epidote; some samples contain clinopyroxene; magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Fiddlers Green Granodiorite|30510|Fiddlers Green Granite|26550|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||Simpson C.|19-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G23|Biotite - minor hornblende granite: pale grey to pink, coarse grained, massive to mylonitic; prominent quartz grains; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Fiery Creek Granite|34431|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|22756||||||Not related to the Fiery Creek nomenclature of Northern Territory.|Granite|acid intrusive rock|||Y||17-JAN-23
Fishermens Bend Silt|6691|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yarra Delta Group|29186|||Holocene|.82|||deposition|Pleistocene|.93|||||||No|60083|||||||Silty clay, sometimes fossiliferous; sands, minor gravel of the Yarra delta.||||N||17-JAN-23
Fishing Point Marl|6694|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Middle Miocene||||deposition|Early Miocene||||||40||No|70942||||||Equivalent to lower parts of Gellibrand Marl. Onshore Otway Basin, Aire district.|Marl|carbonate sedimentary rock|||N||17-JAN-23
Flagstone Creek Sandstone Member|74889|||||Yes|Member, phase|Formal|Other new published name|Described|Kevington Creek Formation|9481|||Upper Devonian||||deposition|Givetian||||||||No|64606||||||| A few hundred metres thick. Medium- to coarse-grained, thick-bedded quartz arenite sandstone; lesser red siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Flaxman Formation|6733|Flaxmans Beds|6736|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Sherbrook Group|16826|||Coniacian||||deposition|Turonian||||||620|VIC|No|71437|42361|||||Type section in Victoria. Age Cenomanian to Turonian in Port Campbell Embayment area, Vic.|Mudstone, siltstone, fine- to coarse-grained sandstone; ironstone, siderite, dolerite, thin coal present.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||16-OCT-23
Flinders Island Granite|35577|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23266||||||Name possibly informal? - already numerous Flinders Island Granites named (AM 22/1/01)|Granite|acid intrusive rock|||Y||17-JAN-23
Flinders Limestone|6758|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Batesfordian||||deposition|Batesfordian||||||||No|34421||||||Originally appeared  "in a paper by Kitson (1902)[as Flinders bryzoal limestone] and has very clear priority over Flinders Basalt which did not appear until Keble's memoir (1950) " - per email F.VandenBerg 6/11/08. PP. Miocene.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Flounder Formation|24985|||||Yes|Formation, beds|Formal|Other new published name|Described|Halibut Subgroup|32294|||Lutetian||||deposition|Ypresian||||||500||No|31480||||||Part of Alan Partride's Halibut Subgroup (Latrobe Group).|Locally derived prograding estuarine sediments - fine marine clastics.|fine grained siliciclastic rock|||N||11-SEP-23
Flowerdale Granodiorite|6778|Flowerdale Granite|6777|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|45087||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G220. Referred to as Flowerdale Micrograndiorite by F. VandenBerg in email 06/11/08). The geology of the Kinglake-Broadford region is currently being reviewed and this includes the Flowerdale rocks (per same email). PP.|Biotite-muscovite granodiorite: fine-grained, grey; consists of quartz, andesine-oligoclase, orthoclase, dark brown biotite, muscovite and ilmenite.|acid intrusive rock|||Y|S-type|17-JAN-23
Flowerdale Member|6779|Flowerdale Sandstone Member|6780|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Humevale Siltstone|28613|||Lochkovian||||deposition|Lochkovian||||||||No|43547||||||Abbreviated version of Flowerdale Sandstone Member. Of the Killingworth Formation in the Seymour-Yea area. See also Flowerdale Conglomerate, Flowerdale Sandstone Member. NOTE: The geology of the Kinglake-Broadford region is currently being reviewed and this includes the Flowerdale units  (per email F. VandenBerg 06/11/08). Name first appeared in Williams, G.E. (1964). "The geology of the Kinglake district, central Victoria": Proc. Royal Soc. Victoria.|Divided (by Williams 1964) into two phases: lower conglomerate phase (50ft thick) and upper sandstone-grit phase (100-150ft thick).|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Fluke Knob Ignimbrite|37552|||||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Tara Range Subgroup|30050|||Pragian||||eruption|Lochkovian||||||650||No|60542||||||See also Fluke Knob Formation|Quartz ignimbrite: crystal-rich, medium to coarse-grained, red, generally densely welded and with well-developed eutaxitic foliation; roundstone conglomerate, pebbly sandstone, sandstone; fluvial and pyroclastic deposits.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Footscray Basalt|35593|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|23275||||||Stone name??|Basalt|basic volcanic rock|||N||17-JAN-23
Forest Creek Ignimbrite|38695|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||intrusion|||||||||No|23615|||||||Coarse grained quartz-feldspar ignimbrite with grey-green fine-grained groundmass set with large crystals of quartz and less abundant feldspar.|acid volcanic rock|||N||17-JAN-23
Forlorn Hope Granite|6824|Forlorn Hope Granodiorite|29221|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Bullenbalong Suite|2895|Wenlock||||intrusion|Llandovery||||||||No|39447||||||Murrindal area. Intrusives in the Limestone Creek Graben. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G122|Grey, fine to medium-grained, S-type granite; rare diorite. Contains leucogranite zones along north-western margin and abundant aplite dykes in some places|acid intrusive rock|intermediate intrusive rock||Y|S-type|05-SEP-23
Forty Foot Sandstone|35646|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|23109||||||Mining Company Name.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Freeman Sandstone Member|6895|||||Yes|Member, phase|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|35283|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Freestone basalt|82971|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Jurassic|191.4|3.9|isotopic, K/Ar||Lower Jurassic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Called 'Freestone dykes' by Soesoo et al. (1999). Stockdale-Castleburn region of Victoria.Locations generalised from Soesoo et al. (1999). Olivine basalt dykes. K/Ar dating of amphiboles from the Freestone dykes yielded an age 191.4 +/-3.9 Ma (M. A. Elburg unpubl. data) reported in Soesoo et al. (1999).|Olivine basalt.|basic volcanic rock|||N||17-JAN-23
French Park Granite|6900|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42726||||||Informal name by Chappell et al. (1991). Mount Arthur area. May be part of the Collingullie Granite.|Granite|acid intrusive rock|||Y||17-JAN-23
Frying Pan Creek Ignimbrite|21818|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||200||No|43206||Orth K.|22-MAY-91|||Murrindal area.|Feldspar ignimbrite with pink vitric matrix, minor quartz phenocrysts.|acid volcanic rock|||N||17-JAN-23
Fumina Basalt|76929|Older Volcanic Group|39878|||Yes|Formation, beds|Formal|Other new published name|Described|||||Burdigalian||||eruption|Burdigalian|19||isotopic|||||No|66244||||||Flow remnants extending from the Tynong Granite through the Fumina area and down to La Trobe Valley near Willow Grove and Tanjil South. Part of the Neerim Province of Wellman (1974). The boundaries with Thorpdale and Neerim Volcanic Groups are arbitrary. Date probably K/Ar.|Olivine tholeiite, alkali olivine basalt, K-hawaiite; minor nepheline basalt, basanite and nepheline hawaiite.|basic volcanic rock|||N||17-JAN-23
Furneaux Sequence|77119|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Defined|Bass Megasequence|41024|||Late Maastrichtian|||||Late Campanian||||||||No|61553||||||Bass Basin. Deposited in fluvio-deltaic, lacustrine, coastal plain and peat mires environments.|Fluvio-deltaic sandstones interbedded with (a) freshwater lacustrine shales or (b) thin overbank or delta plain shales and coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||30-MAR-23
Gabo Island Granite|6946|||||Yes|Formation, beds|Formal|Other new published name|Described|||Gabo Suite|6947|Middle Devonian|356|12|isotopic, K/Ar|intrusion|Lower Devonian|395|4|inferred, geochemical correlation|||||No|46579||||||See also Lexicon. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G1.  Also: 395+/-4 Ma (Williams, in press) [U/Pb SHRIMP?] from 1993 ref  - but note that this may be age of Watergums Granite, Gabo Suite rather than Gabo Island Granite.|Brick-red colour, even-grained, A-type, granite; perthitic alkali feldspar dominates over plagioclase; khaki coloured ferrohastingsite and Fe-rich biotite.|acid intrusive rock|||Y|A-type|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
Gallows Hill Phonolite|75950|Older Volcanic Group|39878|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Jurassic|153|20|isotopic, K/Ar||Jurassic||||||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||This nepheline phonolite body capping Gallows Hill was dated as Jurassic by McDougall & Wellman (1976) [from a rather weathered whole rock sample], and therefore is not part of the Palaeogene former Older Volcanic Group, as shown on earlier maps. It was described by McDougall & Wellman (1976) as a possible plug, although its shape is also consistent with a flow or sill.|Nepheline phonolite.|foid-bearing volcanic rock|||N||17-AUG-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
Garden Cove Formation|28564|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33319|||||||||||N||17-JAN-23
Garden Creek Igneous Complex|75778|Besford Caldera|77285|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Lower Devonian|||inferred, geochemical correlation||Lower Devonian|||inferred, geochemical correlation|||||No|68115||VandenBerg, F., Morand, V (GSV)|19-OCT-10|||Used in the Seamless Geology of Eastern Victoria.  To include the Besford Ignimbrite (K/Ar age of 400 +/- 7 Ma) and the Sloan Knob Microgranite.|||||N||17-JAN-23
Gariwerd Sandstone|34782|||||Yes|Formation, beds|Formal|Other new published name|Described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||300||No|44930||||||Part of the Grampians Group.|Sandstone and siltstone; reddish-yellow, quartz-micaceous-feldspathic; laminated and cross-laminated, thin to thickly bedded; coarser and more pebbly to the north.|siliciclastic sedimentary rock|||N||17-JAN-23
Garvey Gully Formation|7041|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Darriwilian||||deposition|Darriwilian||||||100||No|33602|||||||Mafic-ultramafic-derived sandstone, mudstone and limestone blocks; basal conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary 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
Gatum Ignimbrite|30449|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian|||||10|30||No|44929|50154|Simpson C.|28-AUG-96||||Quartz feldspar ignimbrite: pinkish grey with abundant crystals up to 3mm; eutaxitic texture with pink fiamme foliation.|acid volcanic rock|||N||17-JAN-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
Geelengla Granite|70242|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Chappell B.W.|05-APR-06|||Ballarat 1:250k, Skipton 1:100k (7522). Name used for granite in Geochem data set that plots where no granite is shown on 1:1mill map. Used by FIGS project (Dave Champion).|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
Gelantipy Ignimbrite|7097|Gelantipy Rhyodacite|26568|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||1300||No|41585||||||Murrindal area.|Quartz-feldspar ignimbrite: grey, green; pumice-rich.|acid volcanic rock|||N||17-JAN-23
Gellibrand Marl|7107|Gellibrand Clay|7103|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Heytesbury Group|8311|||Tortonian||||deposition|Rupelian|32|||||1300|VIC|No|71437|31036|||||Originally 'Gellibrand-beds' of Tate and Dennant (1893). Formerly Gellibrand Clays and Gellibrand Clay. Gellibrand Marl introduced by Bock & Glenie (1965). Incorporates Fishing Point Marl and "Upper Glen Aire Clay". Included in both Heytesbury Group and Torquay Group (VandenBerg 2009): see discussion in RefID 65715 p16. In Torquay Group replaces Fyansford Clay (of Bowler 1963, Chapman & Cudmore 1924, and others).|Marine shelf deposits: clay, marl and worm-burrowed calcarenite, fine to medium grained quartz and detrital calcareous fossil fragments in clay matrix, moderately sorted, massive to well bedded.|regolith|carbonate sedimentary rock||N||17-JAN-23
Gellibrand Marl and equivalents, Clifton Formation|37673|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Heytesbury Group|8311|||Miocene||||deposition|Miocene||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Gellibrand Marl and equivalents, and Clifton Formation.|Marine marl, silt, calcarenite, basalt|carbonate sedimentary rock|basic volcanic rock||N||17-JAN-23
Gembrook Granite|7115|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|35283|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Genoa Peak Granite|7121|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lower Devonian|395|8||intrusion|Late Silurian||||||||No|30574||||||GSV Code: G7. Age:  395+/-8 Ma. Age updated from GSV data (HG, Dec 2005).|Biotite granite: pink; porphyritic with phenocrysts of orthoclase, plagioclase and quartz; accessory magnetite.|acid intrusive rock|||Y|I-type|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
Gibbo River Formation|36865|Gibbo River Siltstone|7164|||Yes|Formation, beds|Formal|Variation of published name|Described|Wombat Creek Group|20398|||Pridoli||||deposition|Ludlow||||||400||No|60503||||||Probably same unit as Gibbo River Siltstone. Possibly misspelt?|Siltstone, olive green-brown, laminated; calcareous siltstone; minor lenses of conglomerate, fine grained quartzitic sandstone and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||07-SEP-23
Gibsons Folly Formation|27289|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Enano Group|24268|||Pridoli||||eruption|Pridoli||||||500|VIC|Yes|38145|39447|VandenBerg, A.H.M.|21-MAY-79|Vic SNSC|26-SEP-79|Contains the Wilga deposit, and Currawong deposit. In fault contact with Thorkidaan Volcanics.|Comprises strongly foliated volcanics ranging from rhyolite to basalt and interbedded siltstone. Andesite, dacite, basalt, rhyolite, siltstone: weakly magnetic (20 nT) over dacite; low total count, K, Th, U, northwest trending moderate K bands.|acid volcanic rock|basic volcanic rock||N||17-JAN-23
Giffard Sandstone Member|7191|Giffard Sandstone|7192|||Yes|Member, phase|Formal|Unknown or process pending|Described|Lakes Entrance Formation|10081|||Rupelian||||deposition|Rupelian||||||||No|35273|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Gillingall Ignimbrite|30550|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||150||No|43206||||||Murrindal area.  Not related to Gillingall Limestone [obsolete].|Vitric-rich feldspar ignimbrite with minor quartz.|acid volcanic rock|||N||17-JAN-23
Gippsland Limestone|7269|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Seaspray Group|16717|||Late Miocene||||deposition|Early Miocene||||||800||No|48631|||||||Consists of marls and calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Girringurrup basalt|28574|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Holocene||||eruption|Pleistocene||||||||No|34988|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Gisborne basalt|7299|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|70999||||||Probably superseded by Newer Basalt?|Basalt|basic volcanic rock|||N||17-JAN-23
Glen Creek Lithic Sandstone|24287|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Devonian||||deposition|Devonian|||||||VIC|Yes|36389|36389|G.N.Phillips, E.J.Wall|14-APR-78|Vic SNSC|09-JAN-79||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Glen Hills Sandstone Member|30436|||||Yes|Member, phase|Formal|Resvd name published|Described|Silverband Formation|16896|||Silurian||||deposition|Ordovician||||||350||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. Part of the Grampians Group.|Sandstone: purplish, fine- to medium-gr., quartzo-micaceous; laminated, x-laminated and trough x-laminated; thin to thickly bedded; minor interbeds of red micaceous mudst. capping stacked packages of upward thining + fining sandstone; mud rip-up clasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Glen Shiel Ignimbrite|21860|||||Yes|Formation, beds|Formal|Resvd name published|Described|Marroo Subgroup|22271|||Pragian||||eruption|Pragian||||||200||No|43206||Orth K.|20-SEP-89|||Murrindal area. Also from GSV state seamless geology (2014), map symbol Dsed.|Grey-green ignimbrite with a bimodal quartz phenocryst population.|acid volcanic rock|||N||17-JAN-23
Glenaroua Microgranite|32492|Glenaroua Granite|7359|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|44197||||||Melbourne 1:250 000 sheet area. G287 Age updated from GSV data (HG, Dec 2005). GSV Code: G287|Porphyritic biotite microgranite with phenocrysts of quartz, orthoclase, oligoclase and biotite in a fine grained groundmass of the same minerals; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Glenaulin Clay Member|27781|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Oligocene||||deposition|Oligocene||||||||No|30184|||||||Clay|sediment|||N||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
Glencoe Limestone Member|7370|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Gippsland Limestone|7269|||Langhian||||deposition|Burdigalian||||||||No|31351||||||See also Glencoe Limestone.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Glendara Granite|41186|Glendara Adamellite|37245|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Late Cambrian||||intrusion|Late Cambrian||||||||No|50160|50154|||||"Adamellite" of Kemp et al. (2002) has been replaced with "Granite" in line with modern terminology by Morand et al. (2003), article: 50154. Age and lithology updated from GSV data (HG, Dec 2005)|Cream coloured, muscovite-biotite granite: massive, coarse grained, porphyritic with phenocrysts of alkaline feldspar; accessory magnetite; rare mafic biotite-rich microgranitoid enclaves; magnetic to non-magnetic.|acid intrusive rock|||Y||17-JAN-23
Glendart Granite|7378|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Silurian||||intrusion|Early Silurian||||||||No|39860|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Glendinning Ignimbrite|30451|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||40||No|44929|50154|Simpson C.|28-AUG-96||||Quartz feldspar ignimbrite: dark brown with sparse crystals up to 2mm; abundant lithics of Rocklands Volcanics upto 25cm at base; pumice rich at top; eutaxitic texture, partly  devitrified, fiamme often attentuated by rheomorphic flow into contorted flow.|acid volcanic rock|||N||17-JAN-23
Glenelg River Metamorphic Complex|7400|Glenelg River Complex|7398|||Yes|Group, Suite|Formal|Other new published name|Defined|Moralana Supergroup|26314|||Lower Ordovician|||||Middle Cambrian||||||||No|33602|50154|||||Defined as Glenelg River Complex in Wells (1956). See also "Glenelg River Metamorphic Complex felsic intrusives" and "Glenelg River Metamorphic Complex mafic intrusives" (OR, Nov 2007).  Have a 500-600 ma detrital zircon peak age similar to Moralana Supergroup rocks.|Biotite granite: massive to foliated, medium to coarse grained, equigranular, muscovite-bearing. Leucogranite: garnet-bearing varieties and pegmatite. Migmatite: layered to nebulitic gneiss with dark biotite-rich layers and pale granitic layers.|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Glenelg River Metamorphic Complex - biotite granite 79639|79639|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Glenelg River Metamorphic Complex|7400|||Lower Ordovician|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol -Cmgb.|Biotite granite: massive to foliated, medium to coarse grained, equigranular, commonly muscovite-bearing; non-magnetic.|acid intrusive rock|||Y||17-JAN-23
Glenelg River Metamorphic Complex - leucogranite 79640|79640|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Glenelg River Metamorphic Complex|7400|||Lancefieldian|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol -Cmgg.|Leucogranite including garnet-bearing varieties and pegmatite.|acid intrusive rock|||Y||17-JAN-23
Glenelg River Metamorphic Complex - mafic intrusives|73467|||||Yes|Group, Suite|Informal|Unnamed published|Briefly described|||||Cambrian|||||Cambrian||||||||No|||Liu, S.|29-JUN-07|||Informal name  to be used in the 1:1million surface geology of Australia.  Parent unit is NOT Glenelg River Metamorphic Complex due to the grouping of the metasedimentary complex  in the Moralana Supergroup [?].|Dark green metagabbro and metadolerite: massive, weakly to strongly foliated; amphibolite, strongly schistose, laminated. Dominantly hornblende-plagioclase. Includes some greenschist facies metagabbro in the lower biotite zone|metamorphosed basic igneous rock|||Y||17-JAN-23
Glenelg River Metamorphic Complex - migmatite 79571|79571|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Glenelg River Metamorphic Complex|7400|||Late Cambrian|||||Middle Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. Originally entered as: Glenelg Metamorphic Complex - high grade metamorphic rocks 79571. Map symbol Eng.  From GSV state seamless geology (2014) and (2011) map symbol -Cmgm.|Layered to nebulitic gneiss (migmatite) with dark biotite-rich layers and pale granitic layers. Grades into various granite and pegmatite phases|high grade metamorphic rock|||N||17-JAN-23
Glenelg Suite|41962|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned|||||Lower Ordovician|480||||Early Cambrian|520|||||||No|60544||||||May not be intended as a formal name?|||||Y||17-JAN-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
Glengoyne Granite|41189|Glengoyne Adamellite|37260|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Late Cambrian||||intrusion|Middle Cambrian||||||||No|50160|50154|||||Of the Glenelg River Metamorphic Complex. "Adamellite" of Kemp et al. (2002) has been replaced with "Granite" by Morand et al. (2003) to be in line with modern terminology (article 50154). Age and lithology updated from GSV data (HG, Dec 2005)|Muscovite-garnet leucogranite: massive, white, fine to medium grained, porphyritic with microcline megacrysts and rare biotite; pegmatite, aplite and microgranite phases occur; non-magnetic.|acid intrusive rock|||Y|S-type|17-JAN-23
Glenlogie Granodiorite|25014|Glenlogie Granite|7425|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenlogie Suite|7426|Middle Devonian|397|6||intrusion|Lower Devonian|399|8|isotopic, U/Pb|||||No|41850||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G372|Speckled grey, medium to coarse grained, hornblende-biotite granodiorite; strongly kaolinised in places, with limonite and goethite staining.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenlogie Suite|7426|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Middle Devonian|||||Lower Devonian||||||||No|41563|||||||Granites, granodiorites and tonalites.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenloth Suite|37620|Hemsley Suite|37560|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Middle Devonian|||||Lower Devonian||||||||No|60491||||||Of Bibby and Moore, 1998. Superseded by Hemleys Suite in VandenBerg et al. (2000), but reinstated in VandenBerg (2009). Includes the Barraport and Tunstalls plutons.|Granites.|acid intrusive rock|||Y||17-JAN-23
Glenmaggie Basalt|76930|Older Volcanic Group|39878|||Yes|Formation, beds|Formal|Other new published name|Described|||||Aquitanian|||isotopic, K/Ar|eruption|Aquitanian||||||||No|66244||||||Includes flows just west of Lake Glenmaggie and in the Macalister River valley, and the upstream remnants around Connors Plain. Magnetic imaging shows it continues under cover into the La Trobe Valley to Heyfield. One K-Ar date gives early Miocene age (McKenzie et al., 1984)|Basalt flows; alkali olivine basalt, olivine tholeiite and hawaiite, with alkali olivine basalt being the most abundant.|basic volcanic rock|||N||17-JAN-23
Glennie Granite|26582|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|23266||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G253|Cordierite-biotite granite: coarse grained, subequigranular; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Glenore Granite|37062|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Permian||||intrusion|Permian||||||||No|23603||||||"Glenore" name in NSW has precedence (Glenore Adamellite/Monzogranite).  The name in Victoria (Glenore Granite) is therefore invalid, but the name is retained until a new name is proposed.|Granite|acid intrusive rock|||Y||17-JAN-23
Glenronald Shale Member|25015|Glenronald Chert Member|24289|||Yes|Member, phase|Formal|Variation of published name|Defined|Fairview Andesite Breccia|38063|||Late Cambrian||||deposition|Middle Cambrian|505||||||VIC|Yes|40172|40887|Buckland G.L.|18-APR-84|Vic SNSC|18-MAY-84|Defined by Buckland (1986) as Member of Fairview Andesitic (sic) Breccia; this latter unit has been renamed the Fairview Andesite (sic) Breccia (VandenBerg 2009). Numerical age  ~505 Ma (Middle Cambrian) from 2006 reference discussing acritarchs.|Laminated black pyritic shale, volcanic siltstone, minor chert|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Glenrowan Granite|7443|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Name is informal. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G202|Biotite granite: fine grained, sugary, grey-brown; extensive hydrothermal alteration; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Glenthompson Sandstone|24290|Glenthompson beds|34783|||Yes|Formation, beds|Formal|Variation of published name|Defined|Nargoon Group|37331|||Middle Cambrian|500||inferred, intrusive relationship|deposition|Ediacaran|560.9|4.2|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|900||VIC|Yes|40172|40887|A.H.M.VandenBerg, H.E.Wilkinson|23-JUN-78|Vic SNSC|18-MAY-84|Variation of Glenthompson beds proposed by VandenBerg and Wilkinson (1982). Middle(?) Cambrian. The radiometric age given will be a max. age from detrital zircons, but the Glenthomson Sandstone is now (2016) believed to be older than the Mount Staveley Volcanic Complex, rather than younger. It is intruded by the high zirconium 'Chatsworth sill swarm', geochemically much more like the Truro Volcanics than the Mount Stavely Volcanic Complex.|Turbiditic sandstone, greywacke, and mudstone; fine to coarse grained; comprising quartz, detrital muscovite, biotite, lithic fragments, K-feldspar and plagioclase grains in fine grained matrix; texturally immature; generally poorly sorted sublitharenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Glenvale Granodiorite|34823|Glenvale Granite|7445|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22885||||||Age updated from GSV data (HG, Dec 2005).|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Goat Rocks Conglomerate|69404|||||Yes|Formation, beds|Formal|Other new published name|Described|Kerrie Group|9471|||Devonian||||deposition|Silurian|||||||VIC|No|64619||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Age is Silurian or Early Devonian.|Conglomerate, sandstone - pebble to boulder conglom., massive to crudely bedded, mod'ly sorted, generally well-rounded; clasts of quartzite, sandstone, chert, gritstone, minor vein qtz; sst rare, well-sorted with planar+ cross-lamination; fluvial deposits|siliciclastic sedimentary rock|||N||17-JAN-23
Golden Ball Granite|26585|Golden Ball Adamellite|7488|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Beechworth Suite|31572|Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G196|Leucocratic biotite granite: medium grained; accessory muscovite, fluorite, topaz, ilmenite and zircon; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Golden Beach Subgroup|32307|Golden Beach Group|30486|||Yes|Subgroup|Formal|Variation of published name|Described|Latrobe Group|10217|||Campanian|||||Santonian||||||||No|13323||Partridge A.D.|02-FEB-98||||Non-marine to paralic clastics; marine clastics.|siliciclastic sedimentary rock|||N||11-SEP-23
Goldie Chert|7511|Goldie Shale|7515|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||deposition|Late Cambrian|||inferred, biostratigraphic correlation|||600||No|40761|64612|||||Supersedes Goldie beds (upper half) and Goldie Shale, and now includes only the true cherts and siliceous siltstones. Interfingers with Knowsley East Shale. [Previously shown as extending into NSW, but this seems unlikely CEB Feb-2013]|Deep water hemipelagic deposit: siliceous shale, chert; white, dark grey, black, thinly bedded (60592). Weakly magnetic; low K, Th and U (60597).|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Good Morning Bill Schist|37557|||||Yes|Formation, beds|Formal|Other new published name|Described|Moornambool Metamorphic Complex|37578|||Cambrian||||metamorphism|Ediacaran|568.8|6.2|isotopic, U/Pb-Pb/Pb ion probe|||||No|23309||||||Of Moornambool Metamorphic Complex. The range of ages (Cambrian to Devonian) may represent times of deposition to metamorphism. Some evidence of  metamorphic overgrowths at 568.8 +/- 6.2 Ma (GSV Tech Record 2006/2) [could these be overgrowths on detrital zircons from source rocks, prior to formation of Moornambool Metamorphic Complex?]|Quartz-muscovite-biotite (+/-garnet+/-K-feldspar+/-staurolite) schist: coarsely schistose; transposition and mylonitic fabrics and folds ubiquitous; coarsely layered, with quartz and mica domains|metasedimentary siliciclastic rock|||N||17-JAN-23
Goongerah Granodiorite|23628|Goongerah Granite|25021|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Wenlock||||intrusion|Llandovery||||||||No|41850||VandenBerg, A.H.M.|08-FEB-89|||Currowong Suite. GSV Code: G50.  See also informal Goongerah Granite (stated to be part of Goongerah Suite/Currowong Supersuite on Lachlan Fold Belt Granites map, 1991). Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite granodiorite: medium to coarse grained, bluish grey; contains abundant dark enclaves; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Goongerah Suite|31497|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Currowong Supersuite|5087|Lower Devonian|||||Lower Devonian||||||||No|42726|||||||||||Y||17-JAN-23
Goonmirk Rocks Granodiorite|7571|Goonmirk Granodiorite|21886|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42627||||||See also Goonmirk Rocks Granitoid. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G34|A-type granodiorite with tan-brown biotite, hornblende, titanite and allanite|acid intrusive rock|||Y||17-JAN-23
Gordon Creek Ignimbrite|21889|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Timbarra Subgroup|30554|||Lower Devonian||||eruption|Ludlow||||||100||No|43206||Orth K.|24-MAY-91|||Subject to Convenor's approval|Quartz ignimbrite: red to purple with large quartz, small feldspar phenocrysts.|acid volcanic rock|||N||17-JAN-23
Gough trachyte|7635|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35215|||||||Trachyte|intermediate volcanic rock|||N||17-JAN-23
Goughs Bay Sandstone Member|69400|||||Yes|Member, phase|Formal|Resvd name published|Described|Montys Hut Formation|26039|||Lower Devonian||||deposition|Lower Devonian||||||||No|64606||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05||Sandstone, siltstone: deep-marine deposits.|siliciclastic sedimentary rock|||N||17-JAN-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 View Syenite|30954|Grandview Syenite|41916|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60504||VandenBerg, A.H.M.|12-FEB-97|||Benambra 1:100 000 sheet area. Same as Grandview Syenite - place name in both formats, Grand View and Grandview, the latter is more favoured in geological studies/papers. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende syenite: mid to dark grey, coarse-grained, with orthoclase phenocrysts: A-type|intermediate intrusive rock|||Y|A-type|17-JAN-23
Grange Burn Formation|7680|Grange Burn Coquina|7679|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Zanclean|4.7|||deposition|Late Miocene|5.5|||||||No|44238||||||See also Lexicon. SJ54-7.|Shell beds, shelly marl, sandy limestone, calcareous sand.|regolith|||N||17-JAN-23
Granite Hill Granodiorite|78062|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Eifelian||||intrusion|Emsian|399|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|67978||||||See also informal Granite Hill granodiorite. Both name versions first appear in same article (refid 67978). Accidental capitalisation of name?|Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Grantville Gravels|7705|Grantville Gravel|7704|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|33358|||||||Gravels|sediment|||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
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
Great Western Formation|35341|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|White Hills Group|35338|||Paleocene||||deposition|Paleocene||||||||No|24383||||||Unit created by Hughes, Carey and Kotsonis (1999) in Regolith '98 [to be indexed soon]. In Ararat area.|||||N||17-JAN-23
Green Gully Limestone Member|7746|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||Miocene||||deposition|Miocene||||||||No|33605||||||Probably obsolete.|Limestone.|carbonate sedimentary rock|||N||17-JAN-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
Greensborough Basalt|7771|Melbourne Volcanic Province|68405|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Miocene|17.5|.3|isotopic, K/Ar|eruption|Aquitanian|22|.5|isotopic, K/Ar|||||No|33604||||||Age: 17.5 Ma (Wellman 1974); 22 Ma (Bowen 1975), both from same site. May be the same unit as the Monbulk Volcanic Group.|Basalt: blue-grey; phenocrysts of olivine in groundmass of titanaugite, labradorite laths, pyroxene, iron oxide, interstitial glass; olivine partly altered to serpentine.|basic volcanic rock|||N||17-JAN-23
Greenwald-Cobboboonee Basalt|7778|Cobboboonee-Greenwald basalt|4261|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|42827|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Greggs Granodiorite|37723|Mount Misery Granodiorite|37582|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|23309||||||Replaces the invalid Mount Misery Granodiorite of Victoria. Named after Greggs Track - site of Type locality (Vandenberg, et al. 1998). Age and lithology updated from GSV data (HG, Dec 2005) . GSV Code: G86|Grey, foliated; medium to coarse grained, biotite-muscovite-(apatite-cordierite-garnet-sillimanite) granite; S-type; nonmagnetic with weakly magnetic north and northwest trending dykes|acid intrusive rock|||Y|S-type|17-JAN-23
Gretgrix pluton|83434|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||Used in RefID 73496 Moore (2005). G613. Strongly magnetically zoned, with a magnetic core (to 75 nT) and rim (to 100 nT) separated by a largely nonmagnetic phase; gravity response in south to 200 micrometres/second/second lower than adjacent metasediments but with little difference in north.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Grieves Granite|37725|Nardoo Granite (VIC)|37726|||Yes|Formation, beds|Formal|Other new published name|Described|||Coonooer Suite|37536|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||To replace Nardoo Granite of Bibby & Moore (1998), as this name was preoccupied by Nardoo Granite in WA. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G339|Moderately magnetic, medium-grained, I-type, biotite-hornblende granite, oxidised.|acid intrusive rock|||Y|I-type|10-SEP-23
Gringegalgona Granite|41190|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|50160|50154|||||Of the Glenelg River Metamorphic Complex? Age and lithology updated from GSV data (HG, Dec 2005)|White muscovite granite: massive to foliated, medium to coarse grained, porphyritic with phenocrysts of microcline and muscovite; schist and migmatite enclaves locally abundant; foliation is schlieric and accompanied by aligned microcline phenocrysts; no|acid intrusive rock|||Y|S-type|17-JAN-23
Groper Formation|75868|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11||| Of Angler Subgroup, Gippsland Basin. See Biostrata Report 2006/07. Equivalent to the 'Early Oligocene Wedge' (EOW) of Bernecker & Partridge (2001).|||||N||17-JAN-23
Grunter Member|32299|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Kingfish Formation|32298|||Danian||||deposition|Danian||||||||No|13323||Partridge A.D.|02-FEB-98|||Of the Kingfish Formation (Halibut Subgroup, Latrobe Group).|Interbedded sandstone, siltstone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Gubbins Bridge Granite|37741|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Paleozoic||||intrusion|Paleozoic||||||||No|23309||||||New name for an unnamed granite around Chatsworth (Willaura 1:100 000 map sheet area); named after Gubbins Bridge. Age updated from GSV data (HG, Dec 2005)|I-Type.|acid intrusive rock|||Y|I-type|17-JAN-23
Gummy Volcanics Member|75869|Campanian Volcanics|39832|||Yes|Member, phase|Reserved|Reserved|Reserved|||||Campanian||||eruption|Campanian||||||||No|||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Of Volador Formation, Gippsland Basin. Proposed formal name for 'Campanian Volcanics'. Gummy-1 well is currently the only well intersecting a substantial section of Campanian volcanics that has NOT already been used for another formation or member name.Secondly, it should be a Member rather than a Formation, as it only has a restricted geographic distribution in the basin.|||||N||17-JAN-23
Gunbower Limestone|7883|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41868|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Gundowring Granite|37742|Gundowring|32386|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|23309||||||Referred to as G148 on the Tallangatta  1:250K map sheet. Age updated from GSV data (HG, Dec 2005).|Granite|acid intrusive rock|||Y||17-JAN-23
Gunns pluton|41774|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|61169||VandenBerg, F.|13-SEP-04|||Geological Survey of Victoria map code: G473.|Subsurface pluton.|igneous intrusive rock|||U||17-JAN-23
Gurnard Formation|25939|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cobia Subgroup|32306|||Rupelian||||deposition|Lutetian||||||120|VIC|No|31480|31480|||||Within the Cobia Subgroup (Latrobe Group).|A condensed section characterised by fine- to medium-grained glauconitic siliciclastic sediments.|siliciclastic sedimentary rock|||N||11-SEP-23
Guys Forest Granodiorite|37743|Forest Creek Granite|6810|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Boggy Plain Supersuite|2092|Emsian|413|3|isotopic, K/Ar|intrusion|Lochkovian||||||||No|23309||||||Age: 413+/3Ma (K/Ar biotite). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G572. Formerly part of the Forest Creek Granite unit of White et al. 1974)|Nonmagnetic, I-type, biotite granodiorite; mainly foliated, minor hornblende, few enclaves; hornblende granodiorite: pale grey, medium grained; few enclaves; I-type; intensely magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Guys Forest Granodiorite - biotite granodiorite phase 79690|79690|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||||Emsian|||||Lochkovian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G572b.|Biotite granodiorite: grey, medium grained, mostly foliated; I-type; non-magnetic.|acid intrusive rock|||Y||17-JAN-23
Guys Forest Granodiorite - hornblende granodiorite phase 79689|79689|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Guys Forest Granodiorite|37743|Emsian|||||Lochkovian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G572a.|Hornblende granodiorite: pale grey, medium grained; few enclaves; I-type; intensely magnetic|acid intrusive rock|||Y||17-JAN-23
Halibut Subgroup|32294|||||Yes|Subgroup|Formal|Resvd name published|Described|Latrobe Group|10217|||Ypresian|||||Campanian||||||||No|13323||Partridge A.D.|02-FEB-98|||Contains most of the reservoir sands of the major oilfields in the Gippsland Basin.|Includes coals and carbonaceous shales (source rocks) and marine near-shore barrier and shoreface sandstones (reservoirs).|organic rich sedimentary rock|siliciclastic sedimentary rock||N||11-SEP-23
Hallets Road Tonalite|34854|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Polar Star Suite|34903|Lochkovian||||intrusion|Pridoli||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|Moderately magnetic, pale grey, fine to medium grained, I-type, biotite tonalite; massive to strongly foliated; rare round mafic igneous enclaves|acid intrusive rock|||Y|I-type|17-JAN-23
Halls Paddock Diorite|37744|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende diorite: dark grey to green, coarse, equigranular to strongly porphyritic; intensely magnetic.|intermediate intrusive rock|||Y||17-JAN-23
Hamilton Basalt|8011|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Quaternary||||eruption|Quaternary||||||||No|34988|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Handford Creek Formation|21939|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||deposition|Early Cambrian||||||||No|61187||VandenBerg A.H.M., Willman C. & Hendrickx M.|14-DEC-94|||Barkly River Cambrian belt|Sandstone, shale, conglomerate: volcanigenic; marine.|siliciclastic sedimentary rock|||N||17-JAN-23
Hapuku Subgroup|38326|||||Yes|Subgroup|Formal|Variation of published name|Briefly described|Seaspray Group|16717|||Pliocene|||||Miocene||||||||No|23625||||||See also misspelt Hapuke Subgroup.|Marine clastics and carbonates.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Harcourt Granodiorite|8069|Harcourt granodiorite|8072|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Harcourt Suite|8070|Upper Devonian|369|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Upper Devonian|375|7|isotopic, K/Ar||||VIC|No|70904|43211|||||Mentioned as Harcourt granite in Stillwell (1912), and as Harcourt granodiorite in Hills (1959). Now incorporates the informally named Tarrengower Granite (Tasman F.B. in Victoria, 2000). Max Age: 358 (+/-) 15 Ma. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G290|Nonmagnetic, medium-grained, biotite granodiorite, reduced I-type; equigranular to weakly porphyritic in plagioclase, quartz and K-feldspar.|acid intrusive rock|||Y|I-type|17-JAN-23
Harcourt Suite|8070|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Harcourt Supersuite|31528|Upper Devonian||||intrusion|Upper Devonian||||||||No|42827||||||Central Victorian Magmatic Province.|Granite, granodiorite.|acid intrusive rock|||Y||17-JAN-23
Harcourt Supersuite|31528|||||Yes|Supergroup|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|42726||||||Appears not to have been used since 1991. See also Harcourt Suite, Harcourt Granodiorite.||acid intrusive rock|||Y||17-JAN-23
Hardie Hill Complex|73158|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|61896|||||||||||N||17-JAN-23
Hardwicke Creek Rhyolite|21945|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||eruption|Early Cambrian||||||||No|23309||VandenBerg, A.H.M.|07-SEP-94||||Rhyolite lava, breccia, volcaniclastic sediments; marine.|acid volcanic rock|||N||17-JAN-23
Harringtons Tonalite|37745|||||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)|Hornblende tonalite: mid to dark grey, medium grained; strongly foliated; contains several large hornfels rafts; I-type; nonmagnetic |acid intrusive rock|||Y|I-type|17-JAN-23
Harrow Granodiorite|8103|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Ordovician|466|6||intrusion|Cambrian|487|6||||||No|30928|50154|||||Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G407. See also Harrow Granite, Harrow Adamellite.|Grey biotite-muscovite granite: foliated to massive, medium grained, porphyritic with phenocrysts of plagioclase; accessory sillimanite; rare schlieren; non-magnetic.|acid intrusive rock|||Y|S-type|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
Hassall Creek Granodiorite|37236|Hassalls Creek Granodiorite|37558|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Floian|||inferred, geological correlation|intrusion|Tremadocian|487.3|2.9|isotopic, U/Pb-Pb/Pb ion probe|||||No|23991|50154|||||Supersedes Hassall Creek granite. Official spelling of Hassall Creek. Historical spelling is Hassalls Creek.|Biotite-hornblende granodiorite: massive, grey, medium to coarse grained, equigranular; accessory magnetite and sphene; rare mafic microgranitoid enclaves.|acid intrusive rock|||Y|I-type|17-JAN-23
Haunted Hills Formation|8153|Haunted Hills Gravel|8154|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Pleistocene||||deposition|Pliocene||||||||No|34558||||||Originally Haunted Hill Gravels. Formation replaced by Haunted Hills Gravel in 2006 but appears to be preferred GSV name again from ~2010.|Fluvial deposits - succession of cross-bedded and lenticular gravels, sands and clays - in which kaolinitic clays have been identified in the Boisdale area.|siliciclastic sedimentary rock|regolith||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
Hazelwood Formation|25049|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Miocene||||deposition|Miocene|||||150|||No|35273|||||||Clay to sandy clay.|regolith|||N||17-JAN-23
Hearns Mudstone Member|74894|Hearns Mudstone|69620|||Yes|Member, phase|Formal|Variation of reserved name|Described|Snowy Plains Formation|17054|||Tournaisian||||deposition|Tournaisian||||||||No|64606||||||Reserved as Hearns Mudstone (VandenBerg, F., 2005).|Dominantly red and grey mudstone, minor thin-bedded sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Heart Member|32300|||||Yes|Member, phase|Informal|Resvd name published|Mentioned|Kingfish Formation|32298|||Paleocene||||deposition|Paleocene||||||||No|70076||Partridge A.D. (Biotstrata P/L), Kelman, A. (GA)|02-FEB-98|||Original reservation for Partridge revived 23-MAR-2011. Named after the Heart Morass the modern delta region where the Latrobe River enters Lake Wellington, the Heart Member is a local member of the Kingfish Formation geographically centred under the Marlin field. The member consists of 85 to 90% mudstone, with thin interbeds of sandstone and coal. In contrast to the bulk of the Kingfish Formation, which is typically thinly interbedded, and much more sandy, the log motif of the Heart Member shows consistent blocky separation on the density/porosity logs and a fairly consistent and high gamma ray response. The Heart Member straddles the boundary of the Lower and Upper L. balmei Zones and is mid Paleocene in age. The palaeogeography of the member suggest it is was a moderate sized palaeolake on the coastal plain, analogous in size to the modern Lake Wellington. The type section is designated as from 1855 to 2125m in the Turrum-3 well.|The member consists of 85 to 90% mudstone, with thin interbeds of sandstone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Heath Hill Silt|8207|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|33458|||||||Silt|sediment|||N||17-JAN-23
Heathcote Volcanic Group|68647|Heathcote Volcanics|34135|||Yes|Group, Suite|Formal|Variation of published name|Defined|Dja Dja Wrung Supergroup|39124|||Middle Cambrian||||eruption|Early Cambrian||||||1600||No|24551|64612|||||Current name used in GSV seamless state dataset, 2007 (in progress).|Pillowed and massive basalt, andesite and boninite; dolerite; minor volcanic sandstone, hyaloclastite, rhyolite, laminated tuff, black shale, chert, mudstone and mass flow deposits.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Heathcote Volcanics, Lickhole Volcanics|39600|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Middle Cambrian||||eruption|Early Cambrian||||||||No|||||||Tholeiite-boninite association. Lithology referring to informal grouping of units to be used for Victoria 1:1 million geological map, National Maps Project. Includes rocks from Heathcote and Lickhole Volcanics.|Marine tholeiitic basalt and dolerite, boninite|basic volcanic rock|||N||17-JAN-23
Heatherdale Shale, Truro Volcanics|83918|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Normanville Group|14255|||Cambrian|526|4|||Neoproterozoic|642.5|3.9||||||No|||||||GSSA unit En2 - Interbedded Heatherdale Shale and Truro Volcanics. Used in GA Alkaline Rocks dataset. Tuff horizon in Heatherdale Shale: 526+/-4Ma (U-Pb). oldest age of the unit is poorly constrained. Morand & Fanning (2006) obtained a date of 642.5 +/- 3.9 Ma for a gabbro. However, this is in conflict with the age of the enclosing sedimentary rocks (Moralana Supergroup), which are thought to be Early Cambrian (Morand et al., 2003). Lithology recorded here is that of the two distinct units, and not specific to this informal combination.|Shale, limestone; Rare fossils; Tuff horizon. Andesite, trachybasalt, hawaiite pillow lava; interbedded volcanic breccia, conglomerate, volcaniclastic sediment, tuff, phyllite, sandstone.||||N||11-JUN-23
Heathfield Sandstone Member|8219|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Eumeralla Formation|6363|||Albian||||deposition|Aptian||||||||No|41269|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Hemleys Granite|41920|Glenloth Granite (VIC)|31752|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenloth Suite|37620|Middle Devonian||||intrusion|Lower Devonian||||||||No|60452||||||Correct spelling of Hemsley/Hemsleys Granite. Of VandenBerg et al (2000), replacing the name Glenloth Granite of Bibby and Moore 1998 where the unit is defined.  Age and lithology updated from unpublished GSV data (HG, Dec 2005) GSV number: G333|Biotite-muscovite granite: coarse grained; I-type|acid intrusive rock|||Y|I-type|10-SEP-23
Hemsley Suite|37560|Glenloth Suite|37620|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|23309||||||Previously referred to as Glenloth Suite by Bibby and Moore, 1998.  Note that the name is misspelt - derived from Hemleys Road (Tasman Fold Belt System in Victoria, 2000, page 449)||acid intrusive rock|||Y||17-JAN-23
Hermit Granite|8294|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|70910||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G580|Grey, medium to coarse grained, biotite granite; foliated quartz-phyric; strong to moderate porphyritic texture, slightly stretched quartz phenocrysts to 10mm; I-type; weathered. Highly to weakly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Hermit Granite - highly magnetic phase 79692|79692|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Hermit Granite|8294|Pridoli|||||Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G580b.|Biotite granite: grey, medium to coarse grained, foliated quartz-phyric; strong to moderate porphyritic texture, slightly stretched quartz phenocrysts to 10 mm; I-type; highly magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Hermit Granite - weakly magnetic phase 79691|79691|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Hermit Granite|8294|Pridoli|||||Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G580a.|Biotite granite: grey, medium to coarse grained, foliated quartz-phyric; strong to moderate porphyritic texture, slightly stretched quartz phenocrysts to 10 mm; I-type; weakly magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Hesket Ignimbrite|21957|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Macedon Igneous Complex|10936|||Upper Devonian||||eruption|Upper Devonian||||||||No|44197||VandenBerg, A.H.M.|30-JUN-93|||Previously included in the Macedon Volcanics, but this unit name has been restored to the original Macedon Igneous Complex in GSV Report 129 [Noted Oct-2010]. Only known from loose surface material. Contacts not exposed.|Ignimbrite: dark grey, fine-grained (glassy) and porphyritic. Phenocryst-poor.|acid volcanic rock|||N||17-JAN-23
Hesse Clay|8304|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Late Miocene||||deposition|Late Miocene||||||||No|37583|||||||Pale to dark brown pedogenic unit.|regolith|||N||17-JAN-23
Heytesbury Group|8311|Heytesbury Formation|77294|||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Messinian|6.2|2.3|fission track|weathering|Rupelian|29||biozone|deposition||698|VIC|No|48581|31036|||||Gambier Basin. See also Lexicon. SJ54-11,12. Upgraded from Heytesbury Formation to Group by Glenie (1971)[ but also appears in Baker (1953) Fig.1 p126] .|Calcareous quartz sand, sandy limestone, limestone, marl, & calcareous clay.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Heytesbury Supersequence|73300|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||upper Triporopollenites bellus|||biozone|deposition|middle Proteacidites tuberculatus|||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||The Heytesbury Supersequence is characteristed by a succession of progradational carbonates, the development of large submarine canyons and a major basal incision surface.|Calcareous claystone overlain by marls, calcarenite and calcilutite; shaly limestone overlain by calcarenite and calcilutite; quartz sandstone overlain by silty mudstone, and limestone.|carbonate sedimentary rock||passive margin|N||17-JAN-23
Heywood Marl|8316|Heywood Member|8317|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Dartmoor Formation|5241|||Paleocene||||deposition|Paleocene||||||||No|31624||||||Otway Basin?|Marl|carbonate sedimentary rock|||N||17-JAN-23
Hickman Creek Granite|21958|Hickman Creek Adamellite|34424|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian||||||||No|44186||Cayley R.|06-JUL-93|||Requested by Fons VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005)|Pink to pale grey, coarse and even grained, biotite monzogranite, with small pegmatitic patches.|acid intrusive rock|||Y|I-type|10-SEP-23
High Tops Tonalite|69416|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Falls Creek Suite|69698|Lower Devonian||||intrusion|Lower Devonian||||||||No|61167||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|COBUNGRA and FALLS CREEK 1:500 000. Geological Survey of Victoria map code: G189. Age and lithology updated from GSV data (HG, Dec 2005).  Enclosed within Cobungra Granite which it intruded.|Biotite tonalite: pale cream; medium-grained, equigranular; weak magmatic alignment of biotite; magnetic. I-type intrusion.|acid intrusive rock|||Y|I-type|17-JAN-23
Highton Volcanics|21960|Blue Range Volcanics|34354|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Wellington Volcanic Group|37613|||Mississippian||||eruption|Upper Devonian||||||160||No|23309||VandenBerg, A.H.M.|07-SEP-94|||Replaces invalid name Blue Range Volcanics, published in 1995.  Erroneously (?) included in the Delatite Group in "Geology of Victoria" (2003).|Rhyodacite, andesite, volcaniclastic conglomerate.|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Hinno Munjie Granite|37747|Hinno-Munjie Granite|30681|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Wenlock||||intrusion|Llandovery||||||||No|60503||||||Probably intruded by Anglers Rest Granite. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granite: grey to pink, medium-grained; foliated; composition variable; numerous metasedimentary enclaves: S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Hobbs Granite|26615|Hobbs Adamellite|28294|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Hobbs Suite|31586|Wenlock||||intrusion|Llandovery||||||||No|42726|||||| Age and lithology from GSV data (HG Dec 2005).|Hornblende granite: fine to medium grained; grey; I-type |acid intrusive rock|||Y|I-type|17-JAN-23
Hobbs Suite|31586|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Holey Plains Marl|8424|Holey Plains Marl Member|8423|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Miocene||||deposition|Miocene||||||||No|31351|||||||Marl|carbonate sedimentary rock|||N||17-JAN-23
Hollands Creek Ignimbrite|35114|||||Yes|Formation, beds|Formal|Variation of published name|Described|Tolmie Igneous Complex|26950|||Devonian||||eruption|Devonian||||||300||No|22971||||||In the Wangaratta Area. See also Hollands Creek Rhyodacite: Type locality for Bothriolepis tatongensis is near the top of the basal conglomerate succession  in this unit. The Givetian Tatong fish fauna is interpreted as the oldest vertebrate zone in the faunal succession of eastern Victoria proposed by Long and Werdelin (1986).|Rhyolitic to rhyodacitic quartz ignimbrite, rich in large phenocrysts and moderately to densely welded.|acid volcanic rock|||N||17-JAN-23
Holloways Formation|37561|Holloway Formation|29696|||Yes|Formation, beds|Formal|Variation of published name|Described|Little River Subgroup|22204|||Pragian||||deposition|Pragian||||||||No|60542||||||See also Holloway Formation|Volcaniclastic sediments and mudstone - sandstones, microbreccia, sandy turbidites.|siliciclastic sedimentary rock|||N||17-JAN-23
Holstons Tonalite|34855|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ensay Suite|34902|Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Previously included in Ensay Tonalite of Simpson et al 1996. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite; grey, medium to coarse-grained, massive to moderately foliated, I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Home Station Sandstone Member|74175|||||Yes|Member, phase|Formal|Other new published name|Described|Snowy Plains Formation|17054|||Tournaisian||||deposition|Tournaisian|||||250|500||No|63738||||||Includes a fossiliferous unit referred to as Fish Hill; this unit contains abundant and diverse trace fossils including a new tracefossil ichnospecies and a new ichnotaxon.|Includes 28 m interval of fossiliferous beds consisting of alternating laminated mudstone and siltstone, laminated and massive sandstones.|siliciclastic sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Honeysuckle Hill Gravels|8460|||||Yes|Formation, beds|Formal|Variation of published name|Described|Latrobe Group|10217|||Lutetian||||deposition|Lutetian||||||200||No|37127|||||||Gravels|siliciclastic sedimentary rock|||N||17-JAN-23
Hope Hill Granite|8483|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|41868|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Hopkins River Granite|8486|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Formal name not intended|I-type Granite|acid intrusive rock|||Y|I-type|17-JAN-23
Horsehair Creek Tonalite|69419|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G462. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite: fine to medium-grained, foliated; contains quartz, plagioclase, biotite, hornblende; weak magmatic foliation due to aligned biotite, hornblende and plagioclase.|acid intrusive rock|||Y|I-type|05-SEP-23
Hospital Creek Sandstone|29698|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Tara Range Subgroup|30050|||Pragian||||deposition|Pragian||||||||No|43312||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. Of Snowy River Volcanics.|Sandstone: crystal rich, thick-bedded and graded, mudstone, pebbly mudstone; volcanolithic conglomerate; marine turbidite deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Hotspur High Level Alluvials|28611|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|34988|||||||Alluvials|regolith|||N||17-JAN-23
House Creek Granite|8531|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Bethanga Suite|31496|||||intrusion|||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||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
Howitt Spur Formation|37563|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wellington Volcanic Group|37613|||Frasnian||||deposition|Frasnian||||||500||No|66252||||||Of Wellington Volcanics|Sandstone and siltstone: sandstone unit: <150 m of upward fining pebble/cobble conglomerate, sandstone, minor mudstone; siltstone unit: ~400 m of brown siltstone and thin sandstone; rhyodacite unit <50m thick near top.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-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
Humevale Siltstone|28613|Ruddock Siltstone|16426|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Pragian||||deposition|Ludlow||||||2700||No|32077|61185|||||Initially part of Humevale Formation (Williams 1964) together with Clonbinane Sandstone and Mount Phillipa Members at base of the formation, Flowerdale Sandstone Member near the top, and the Humevale Siltstone forming the bulk of the formation; this latter name is now retained as a unit in its own right (VandenBerg 1975) -see RefID: 61185.  Several mapped sections formerly of Humevale Siltstone now belong to Norton Gully Sst. (61185) - including Flowerdale Sandstone Member -- former Clonbinane Sandstone and Mount Phillipa Members now reassigned to Dargile Formation see also RefID: 60599. Equivalent to Kilmore Siltstone (VandenBerg 1992), which it now replaces, having precedence. Also replaces Yan Yean Formation in the Merriang-Wandong area, continuing all the way to Kilmore.|Marine mudstone, minor sandstone, marlstone. Distal shelf and hemipelagic mudstone sediments in many areas; sequence of thick, monotonous siltstones in Heathcote/Woodened/Echuca region.|siliciclastic sedimentary rock|||N||17-JAN-23
Hummocks Serpentinite|8585|Hummocks serpentinite|8586|||Yes|Formation, beds|Formal|Variation of published name|Defined|Glenelg River Metamorphic Complex|7400|||Early Cambrian||||intrusion|Neoproterozoic|700|200|isotopic, Sm/Nd model age|maximum depositional age||||No|42275|50154||||||Dark green serpentinite: massive, cumulate texture locally preserved; talc schist; massive chlorite-magnetite rock. Relict pyroxene indicated by exsolution lamellae defined by magnetite granules.|metamorphosed ultramafic rock|||Y||17-JAN-23
Hunken Granite|35154|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|22971||||||Wangaratta 1: 250 000 sheet area|Granite|acid intrusive rock|||Y||17-JAN-23
Hylands Member|30592|||||Yes|Member, phase|Formal|Resvd name published|Defined|McIvor Sandstone|11550|||Lochkovian||||deposition|Ludlow||||||320||No|61185|60599|VandenBerg, A.H.M.|12-NOV-96|||Comprises former units 3 and 4 of the Dargile Beds (Thomas 1937) and correlates with upper part of Melbourne Formation. Member marks a gradational change from deposition of  predominantly mud (Dargile Fm) to sand (upper part of McIvor Sst.).|Monotonous sequence of thin-bedded turbiditic quartz sandstone and interbedded bioturbated mudstone. Large nested channels; abundant shelly fossils.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Hypatia Formation|41195|||||Yes|Formation, beds|Formal|Other new published name|Defined|Coleraine Volcanic Group|41194|||Upper Jurassic|153|5|isotopic, K/Ar|eruption|Lower Jurassic|191|10|isotopic, K/Ar|||80||No|50160|50154||||||Flows and plugs of olivine basalt, nephelinite, hawaiite, basanite, mugearite, ankaramite, picrobasalt. Flows are black, vesicular, fine grained with common small phenocrysts of olivine and pyroxene. Plugs are strongly porphyritic in olivine and pyroxene.|basic volcanic rock|||N||17-JAN-23
Illaenus Band|74775|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|||||Llandovery|||||Llandovery||||||||No|61185||||||Informal name but retained, as it is widely used in its various forms.|||||N||17-JAN-23
Illoura Granodiorite|37748|Lismore Granite|10456|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Beckworth Suite|1351|Upper Devonian|359|2|isotopic, Ar/Ar|intrusion|Lower Devonian|371|2|isotopic, Ar/Ar|||||No|23309||||||New name to replace Lismore Granite in Victoria, whose name is preoccupied by the Lismore Basalt in NSW. GSV Code: G305.   Age: 369+/-18 Ma fission track and from ages reported for Lismore and Wallinduc Granodiorites in Skipton Explan. Notes. Age and lithology updated from GSV data (HG, Dec 2005). Also incorporates Wallinduc Granodiorite.|Coarse grained equigranular hornblende biotite granodiorite and porphyritic biotite granite with phenocrysts of K-feldspar, plagioclase and quartz; pale pinkish grey; mafic clots and enclaves abundant in the granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Ingliston Granite|27436|Ingliston Granodiorite|28615|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Harcourt Suite|8070|Upper Devonian||||intrusion|Middle Devonian||||||||No|39865||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G279|Biotite granite: grey; medium to coarse-grained; dykes of quartz porphyry and feldspar porphyry.|acid intrusive rock|||Y|I-type|17-JAN-23
Ino Creek Granodiorite|34711|Ino Creek Granite|8737|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kuark Metamorphic Complex Supersuite|34704|Wenlock||||intrusion|Llandovery||||||||No|22878||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G27|Brownish grey, coarse grained, biotite-muscovite granodiorite: massive; prominent quartz; includes pods of fine-grained leucocratic muscovite granite and pegmatite. Highly magnetic along north-western boundary, lower over eastern part.|acid intrusive rock|||Y||17-JAN-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
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
Irymple Member|8794|||||Yes|Member, phase|Formal|Other new published name|Defined|Blanchetown Clay|1918|||Chibanian||||deposition|Piacenzian|||||||VIC|No|31745|42966|||||Said (Brown & Stephenson,1991) to be equivalent to Chowilla Sand of Gill (1973). May be junior synonym of Chowilla Sand.|||||N||17-JAN-23
Jacaranda Ridge Sandstone|83701|||||Yes|Bed|Informal|Variation of published name|Briefly described|Sawpit shale|83311|||Lower Cretaceous|||inferred||Lower Cretaceous|||inferred|||||No|73594||||||Otway Basin. Informal subdivision of the upper Sawpit Shale introduced by Camac and Boult (2008). Appears to be restricted to the Penola Trough. May be included in the revised Sawpit Formation?|Thin, laterally extensive unit interpreted as a sheet sand.|sedimentary material|||N||30-JAN-23
Jack River Formation|8824|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|38930|||||||||||N||17-JAN-23
Jahanna River Formation|8841|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41626|||||||||||N||17-JAN-23
Jallukar Volcanics|35145|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|23061|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Jamieson Volcanic Group|73609|Jamieson Volcanics|34148|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Late Cambrian||||eruption|Middle Cambrian||||||||No|66244||||||Published in Surface Geology of Australia, 1:1,000,000 scale - Eastern States (2nd edition) 2006. Has been extended to include all the Cambrian calcalkaline volcanic and related rocks in the eastern Melbourne Zone, including those in the (now redundant) Licola Volcanic Group and those in the Glen Creek Window. All are potentially continuous under the overlying Ordovician to Devonian strata.|Andesite lava and breccia, rhyolite and dacite lava and hyaloclastite breccia; volcaniclastic sandstone, shale and conglomerate|intermediate volcanic rock|||N||17-JAN-23
Jan Juc Marl|8858|Jan Juc Formation|8857|||Yes|Formation, beds|Formal|Variation of published name|Described|Torquay Group|18441|||Aquitanian|22.76|||deposition|Rupelian|27.9|||||||No|70942||||||Described.See also Jan Juc Marl, Lexicon. No redefinition has yet (2013) been indexed, but Birch, W.D. (ed.) in Geology of Victoria, 2003 refers to "...Point Addis Limestone and Jan Juc Marl...(sometimes together referred to as the Jan Juc Formation)...". These two units are apparently promoted to Formation status and the Jan Juc Formation is obsolete.|Fine-grained silty glauconitic marl with sandy calcarenite interbeds; coarsens upwards.|carbonate sedimentary rock|||N||17-JAN-23
Japan Creek Gravel|30295|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Pleistocene||||deposition|Pliocene||||||||No|60507||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Benambra 1:100 000 sheet area.|Alluvium: gravel, sand; moderately to well sorted and poorly to moderately consolidated (60505). Magnetic response masked by Morass Creek Basalt; moderate Th, low total count, K, U (60508).|regolith|||N||17-JAN-23
Jarrahmond Granite|8881|||||Yes|Formation, beds|Informal|Variation of published name|Described|||Bete Bolong Suite|1540|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||GSV Code: G45. Age and lithology updated from GSV data (HG, Dec 2005). Probably the preferred name over Jarrahmond Granodiorite? NOT variation on Jarrahmond Formation which is a sand and silt deposit.|Altered, grey-green, medium grained, I-type hornblende-biotite granodiorite; with some elongate mafic enclaves|acid intrusive rock|||Y|I-type|17-JAN-23
Jeffcott Granite|28623|||||Yes|Formation, beds|Formal|Other new published name|Described|||Glenloth Suite|37620|Middle Devonian|375|6||intrusion|Lower Devonian|411|4||||||No|42726||||||Essentially nonmagnetic, most responses < 5 nT; gravity response less than host metasediments; over outcrops K is higher, Th and U similar to nearby alluvium. Age and lithology updated from GSV data (HG, Dec 2005)|Leucocratic garnet-muscovite granite: medium to coarse grained.|acid intrusive rock|||Y|S-type|17-JAN-23
Jellung Ignimbrite|22023|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Lower Devonian||||eruption|Lower Devonian||||||250||No|43206||Orth K.|06-MAY-91|||Murrindal area.|Feldspathic ignimbrite with purple matrix, weathering to pink, grey and yellow, containing phenocrysts, lithic clasts and pumice fragments.|acid volcanic rock|||N||17-JAN-23
Jemba Ignimbrite|37869|Jemba volcanics|38454|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Mount Burrowa Volcanic Group|37868|||Middle Devonian||||eruption|Lower Devonian||||||650||No|24145|||||||Ignimbrite: dark bluish grey to pinkish grey, crystal rich, mostly recrystallised; sparse small lithic fragments; highly magnetic.|acid volcanic rock|||N||17-JAN-23
Jemmys Point Formation|8906|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Hapuku Subgroup|38326|||Zanclean||||deposition|Messinian||||||||No|34519|||||||Consists of marls and marly limestone overlain by shoreline beach sands, marls and claystone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||24-MAY-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
Jim and Jack Tonalite|34917|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Geological Survey of Victoria map code: G548. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite tonalite: coarse grained, grey I-type with rare round mafic igneous enclaves, fine grained grey muscovite-bearing S-type (article: 23029); non- and intensely magnetic phases; no distinctive radiometric response (article: 23030).|acid intrusive rock|||Y|I-type|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
Jingellic Tonalite|37749|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Middle Ordovician||||intrusion|Middle Ordovician|460|4|isotopic, K/Ar|||||No|23309||||||Age: 460+/-4Ma (K/Ar Hornblende). Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende tonalite: medium to dark grey, medium grained; foliated;nonmagnetic; occurs as small pods within Corryong Granite|acid intrusive rock|||Y|I-type|17-JAN-23
Jirnkee Granite|69424|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G461. Age and lithology updated from GSV data (HG, Dec 2005)|Muscovite leucogranite: coarse-grained; pale grey; homogeneous; consists of perthitic microcline, quartz, plagioclase, muscovite. S Type.|acid intrusive rock|||Y|S-type|05-SEP-23
Johanna River Sand|9003|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lutetian|46.5|||deposition|Danian|65.5|||||40||No|70942||||||Aire district. Equivalent to Dilwyn Formation in Otway Basin.|Sand|sediment|||N||17-JAN-23
Johnson Hill Sandstone|9010|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Emsian||||deposition|Emsian||||||||No|43547|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Johnson Mudstone|30558|Johnson Member|39007|||Yes|Formation, beds|Formal|Other new published name|Fully described|Timbarra Subgroup|30554|||Pragian|||inferred, overlying unit|deposition|Ludlow|||inferred, underlying unit|||500||No|43206||||||Murrindal area. Age inferred from overall Snowy River Volcanics [group] overlying and underlying units.|Volcanigenic mudstone, sandstone, conglomerate, pumiceous vitric sandstone: includes various styles of Bouma sequences; basalt lava; marine turbidites with rare lava pods.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Jolimont Clay|9014|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Yarra Delta Group|29186|||Chibanian||||deposition|Chibanian||||||||No|29982|||||||Clay|sediment|||N||17-JAN-23
Jordan River Group|9028|Jordan River Beds|9027|||Yes|Group, Suite|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Lower Devonian||||deposition|Early Silurian||||||2500|VIC|No|33604|33601|||||Junior synonym for this group was Bonnie Doon Formation of Phillips (1973) (per email Fons VandenBerg 22/9/08). PP.|Undifferentiated marine turbiditic sandstone, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Junction Plain Tonalite|69417|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G464. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite tonalite: medium-grained, with magmatic foliation; contains quartz, plagioclase (some with calcic cores), biotite, hornblende. I-type intrusion.|acid intrusive rock|||Y|I-type|17-JAN-23
Jungle Creek Granodiorite|23676|Jungle Creek Granite|9087|||Yes|Formation, beds|Formal|Resvd name published|Described|||Currowong Suite|5085|Wenlock||||intrusion|Llandovery||||||||No|41850||VandenBerg, A.H.M.|08-FEB-89|||Currowong Suite. GSV Code: G51. See also the informal Jungle Creek Granite (stated to be part of the Jungle Creek Suite/Currowong Supersuite on Lachlan Fold Belt Granites map, 1991). Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite: coarse grained, pale to greenish grey; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Jungle Creek Suite|31498|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Currowong Supersuite|5087|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Kadnook Creek Granodiorite|41185|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Late Cambrian||||intrusion|Late Cambrian||||||||No|50160|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granodiorite: massive, medium grained; accessory magnetite; strongly weathered; magnetic|acid intrusive rock|||Y||17-JAN-23
Kaerwut Tonalite|37564|Kaerwut Trondhjemite|37751|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Wenlock||||||||No|23309||||||Reserved as Kaerwut. Supersedes Kaermut Trondhjemite, named by VandenBerg (1996) but in IUGS classification system this rock is a tonalite. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite tonalite: medium-grained equigranular with porphyritic marginal phase; I-type intrusive|acid intrusive rock|||Y|I-type|06-SEP-23
Kalimnan beds|9126|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|32686|||||||||||N||17-JAN-23
Kalingur Tonalite|37565|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cambrian||||intrusion|Cambrian|504|8|isotopic, U/Pb|||||No|23309||||||Age: 504+/-8Ma (U/Pb zircon).  New name for tonalite intersected in units 11 drillhole (Maheret et al, 1997). Named after the Kalingur State Forest. Age updated from GSV data (HG, Dec 2005)|I-type. Tonalite|acid intrusive rock|||Y||17-JAN-23
Kalkallo Formation|9144|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33020||||||See also Kalkallo arenite.|||||N||17-JAN-23
Kalorama Rhyodacite|27441|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Dandenong Ranges Igneous Complex|37539|||Upper Devonian||||eruption|Upper Devonian||||||300||No|33598|||||||Garnet-bearing rhyodacite ignimbrite, recrystallized; siltstone, lenticular, under recrystallised dark vitric-rich ignimbrite with phenocrysts of quartz, feldspar, occasional almandine garnet, under a thin band of volcanigenic lacustrine sediments.|acid volcanic rock|siliciclastic sedimentary rock||N||10-SEP-23
Kalymna Falls Sandstone|30434|||||Yes|Formation, beds|Formal|Resvd name published|Described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||450||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Quartz sandstone, reddish-yellow, quartzose to quartzo-feldspathic, fine- to medium-grained sandstone with occasional pebbly lag horizons of sub-rounded vein quartz.|siliciclastic sedimentary rock|||N||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
Kangaroo Gully Volcanic Breccia|9214|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Jurassic||||eruption|Jurassic||||||||No|42683|||||||Volcanic Breccia|igneous volcanic rock|||N||17-JAN-23
Kangerong Formation|9229|Kangerong Sandstone|9230|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Castlemaine Group|36202|||Lower Ordovician||||deposition|Lower Ordovician||||||||No|31508|||||||Sandstone, shale|siliciclastic sedimentary 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
Kanmantoo Group - volcanic rocks 79410|79410|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|Kanmantoo Group|28634|||Early Cambrian|||inferred|eruption|Early Cambrian|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Undifferentiated possible felsic volcanics intercalated with Kanmantoo Group metasediments. Age previously poorly described, so shown as Neoproterozoic - Ordovician. EK4 of Cowley, W.M. (compiler) 2008. Solid Geology South Australia, Neoproterozoic to Ordovician Timeslice, 1:2 million.|Possible felsic volcanics intercalated with metasediments.|acid volcanic rock|metasedimentary rock||N||17-JAN-23
Kanni Ignimbrite|37566|||||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Ninnie Subgroup|36861|||Pragian||||eruption|Pragian||||||200||No|60542||||||Reserved as Kanni.  See also informal Canni nomenclature.|Feldspar ignimbrite: crystal rich, small pumice fragments, not welded, green-grey; pyroclastic deposits.|acid volcanic rock|||N||17-JAN-23
Kanowna Island Granite|9246|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). |S-type granite|acid intrusive rock|||Y|S-type|17-JAN-23
Kanuka Granodiorite|27046|Kanuka Granite|26653|||Yes|Formation, beds|Formal|Resvd name published|Described|||Kuark Metamorphic Complex Supersuite|34704|Upper Devonian|388|8||intrusion|Wenlock||||||||No|41572||VandenBerg A.H.M., Orth K.|22-MAR-89|||Mention in Gray et al (1988) - Geology of Victoria ch1 Fig.1.10 also as Kanuka Granite GSV Code: G36. Not of the Kuark Metamorphic Complex, age probably reset by metamorphism, not  emplacement age (HG, O.Raymond, 11/11/04). Age and lithology updated from GSV data (HG, Dec 2005)|Grey, fine to medium grained, biotite granodiorite; foliated with compositional banding; dyke like body; highly magnetic, decreasing towards the periphery|acid intrusive rock|||Y||05-SEP-23
Kapuni Group|9265|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40715|||||||||||N||17-JAN-23
Karoonda Park Volcanic Group|75956|Older Volcanics|14540|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Rupelian|||isotopic, K/Ar|eruption|Lutetian||||||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||This group consists of former Older Volcanic Group basalt flows on the Wulgulmerang Plateau and outliers to the east. These rocks were included in the Gelantipy Subprovince of Price et al. (2003). Several K-Ar dates give an Eocene age for this group (Wellman, 1974; Henley & Webb, 1990).|Olivine tholeiitic basalt and quartz tholeiitic basalt containing olivine phenocrysts.|basic volcanic rock|||N||17-JAN-23
Kassingbrook Granodiorite|37258|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Cambrian||||intrusion|Middle Cambrian||||||||No|24012|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Light grey-buff, muscovite-biotite granodiorite: massive, medium to coarse grained, porphyritic with microcline phenocrysts; common mafic biotite-rich microgranitoid enclaves; local migmatite enclaves and schlieric layering; non-magnetic.|acid intrusive rock|||Y|S-type|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
Kate Shale|32297|||||Yes|Formation, beds|Formal|Resvd name published|Described|Halibut Subgroup|32294|||Danian||||deposition|Maastrichtian||||||||No|12796||Partridge A.D.|02-FEB-98|||Age: Straddles Cretaceous/Tertiary boundary as identified on palynology in SE Australia. Within the Emperor Subgroup (Latrobe Group).|Dark grey mudstones with minor intercalated glauconitic and quartz-bearing sandstones.|siliciclastic sedimentary rock|||N||12-SEP-23
Katnook Sandstone|9330|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crayfish Subgroup|4874|||Barremian||||deposition|Hauterivian||||||690|SA|No|42361|42361|||||Otway Supergroup (in SA)[CEBSEP96].  Part of the Crayfish Subgroup also. See Katnook sandstone (study indicates can efficiently store CO2)|Sandstone, minor shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Kawarren Formation|9346|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Neogene||||deposition|Cenozoic||||||||No|30580||||||After the Kawarren Limestone of Edwards (1962),  'Kawarren limestone' of Kenny (1938).|||||N||17-JAN-23
Keelangie Creek Granodiorite|37752|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Wenlock|424|3|isotopic, K/Ar|intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G570|Nonmagnetic, pale grey, medium to coarse grained, I-type, hornblende granodiorite; equigranular.|acid intrusive rock|||Y|I-type|17-JAN-23
Kelfeera Granite|35172|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|22971||||||Wangaratta 1: 250 000 sheet area|Biotite granite: medium grained, slightly porphyritic.|acid intrusive rock|||Y||17-JAN-23
Kelly Gap Granite|26657|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G201|Biotite granite: fine to medium grained, mid grey; fractionated; porphyritic; contains miarolitic cavities and areas of granophyre; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Kenny Creek Diorite|37753|Kenny Creek Granodiorite|29833|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Wenlock||||intrusion|Llandovery||||||||No|60542||||||GSV Code: G129. Age and lithology updated from GSV data (HG, Dec 2005).|Medium grained, hornblende diorite, leucocratic fine-grained granodiorite in southern portion; I-type.|intermediate intrusive rock|||Y|I-type|05-SEP-23
Kent Road Granite|41932|Kent Road|29709|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Ocean View Suite|37587|Wenlock||||intrusion|Llandovery||||||||No|43314|||||||Foliated, medium grained biotite, muscovite granodiorite; S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Keppel Creek Granodiorite|32460|Keppel Creek Granite|27445|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|44187||||||Warburton 1:250 000 sheet area. Used on May 1997 map. Age and lithology updated from GSV data (HG, Dec 2005). GSv Code: G225|Microgranodiorite: medium to fine grained; saccharoidal, porphyritic.|acid intrusive rock|||Y|S-type|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 Granite|27663|Kergunyah Adamellite|30590|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Middle Devonian|392|4||intrusion|Lower Devonian|||||||VIC|Yes|38879|43220|R.King|23-MAR-82|||Defined - see UNIT DEFINITION. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G180. K/Ar age is minimum intrusion age.|Leucocratic two-mica granite: coarse grained.|acid intrusive rock|||Y||24-JUN-23
Kerrie Group|9471|Kerrie Conglomerate|9470|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Lower Devonian|||inferred, intrusive relationship|deposition|Silurian||||||900||No|41585|65715|||||Introduced by Hart (1892) as Kerrie Conglomerates.|Fluvial conglomerate, sandstone, mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kerrs Road Basalt|9475|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neogene||||eruption|Neogene||||||||No|39865|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Kersop Arkose|32291|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Emperor Subgroup|32290|||Turonian||||deposition|Turonian||||||||No|13323||Partridge A.D.|02-FEB-98|||Within the Emperor Subgroup (Latrobe Group).|Alluvial fan/fluvial deposits - coarse feldspathic sandstones and conglomerates.|siliciclastic sedimentary rock|||N||17-JAN-23
Kevington Creek Formation|9481|Kevington Creek beds|9482|||Yes|Formation, beds|Formal|Variation of published name|Described|Delatite Group|21636|||Upper Devonian||||deposition|Givetian||||||1000||No|42827|||||||Mudstone, minor sandstone, occasional conglomerate: mudstone red; sandstone thick-bedded, trough- and tabular cross-bedded; quartz-lithic, micaceous; conglomerates form bases of upward-fining sequences.|siliciclastic sedimentary rock|||N||17-JAN-23
Kialla Member|9507|||||Yes|Member, phase|Formal|Other new published name|Defined|Shepparton Formation|25474|||Pleistocene||||deposition|Quaternary|||||||VIC|No|70961|42966|||||This name defined & used in Victoria|||||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
Kiewa Granodiorite|9536|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|70910|||||||Granodiorite|acid intrusive rock|||Y||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
Killara coal measures|83257|Killara Coal Measures|76917|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Eumeralla Formation|6363|||Barremian|||inferred, overlying unit||Barremian|||inferred, overlying unit|||||No|73386||||||Otway Basin. Not a formal lithostratigraphic unit. Coal beds occur at the base of the Eumeralla Formation and elsewhere in the formation. The coals are not laterally extensive and are difficult to correlate.|Black coals.|organic rich sedimentary rock|||N||17-JAN-23
Killawarra Granite|26662|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G206|Biotite granite: medium grained, pale grey; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Killeen Basalt|40916|||||Yes|Formation, beds|Formal|Other new published name|Defined|Euroa Volcanic Group|76925|||Pliocene||||eruption|Miocene|||inferred, geological correlation|||4||No|61185|61185|||||Formerly included in Newer Volcanic Group, but outside geographic range as defined in VandenBerg (2007). Undated but now assumed to be similar age to Seven Creeks Basalt (~6.8 Ma)|Lava flow: basanite, iddingsitised olivine phenocrysts in matrix of clinopyroxene, plagioclase, olivine and opaque minerals; nodular weathered texture; irregular jointing.|foid-bearing volcanic rock|||N||17-JAN-23
Killingworth Formation|23698|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pragian||||deposition|Pragian||||||||No|38787||M.Garratt|26-NOV-76|||Formerly of Humevale Siltstone.|||||N||17-JAN-23
Kiln Member|9565|Kiln member|9566|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Waratah Limestone|19435|||Lower Devonian||||deposition|Lower Devonian||||||110||No|43530|||||||Light grey, generally poorly fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Kimberly Park Granite|34839|Kimberly Park Granodiorite|41860|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). See also Kimberly Park Granodiorite, Kimberley Park Granodiorite (misspelling).|Granodiorite: medium-grained, grey, foliated; contains large metasedimentary enclaves: S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Kindalyn Granite|30359|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|23165||Moore D.|09-AUG-96|||Buried pluton, identified through magnetostratigraphy.  Not related to (misspelt) Kindalyn Member of the Merlewood Formation in NSW.|Granite|acid intrusive rock|||Y||17-JAN-23
King Parrot Creek Granodiorite|32494|King Parrot Creek Granite|27449|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Upper Devonian||||intrusion|Upper Devonian|362|6||||||No|44197||||||Melbourne 1:250 000 sheet area. GSV Code:  G219 S-type. See also King Parrot Creek Adamellite. Originally the Kerrisdale Cordierite Microadamellite (Phillips et al. 1981); subsequently the King Parrot Creek intrusion, with no lithology specified (Gray 1990); later the King Parrot Creek Granodiorite (McDonald 1997).|Biotite granodiorite: grey, medium grained, equigranular to porphyritic with K-feldspar phenocrysts 5 - 20 mm across; rare small biotite-rich enclaves; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Kingfish Formation|32298|||||Yes|Formation, beds|Formal|Resvd name published|Described|Halibut Subgroup|32294|||Ypresian||||deposition|Danian||||||||No|13323||Partridge A.D.|02-FEB-98||||Fluvial-deltaic and paralic deposits, sandstone; includes coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Kingsley's Formation|39633|Kingsley|22109|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||||||deposition|||||||||No|24088||||||Reserved as Kingsley by Orth (1991).  Not known if published by originator?|||||N||17-JAN-23
Kipper Shale|32308|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Emperor Subgroup|32290|||Coniacian||||deposition|Turonian||||||596||No|22663||||||Of Lowry & Longley (1991). Advised by A.D. Partridge.|Thick succession of shallow to deep-water lacustrine sediments - shales and siltstones sands.|siliciclastic sedimentary rock|||N||11-SEP-23
Kirribilly Sandstone|77295|Kirribilly Siltstone|69405|||Yes|Formation, beds|Formal|Variation of published name|Described|Kerrie Group|9471|||Devonian||||deposition|Silurian|||||||VIC|No|65715||||||This name was thought to have superseded the Kirribilly Siltstone, yet it occurs in VandenBerg (2009) with both Kirribilly Formation and Kirribilly Siltstone! Although the Siltstone is the earliest reference in the database, the Sandstone is most thoroughly described and is regarded as the current name, but the Siltstone occurs again in 2011 (RefID 68116).|At type locality is thin-bedded siltstone and sandstone (now hornfels).|siliciclastic sedimentary rock|||N||17-JAN-23
Knowsley East Shale|32495|Knowsley East Formation|9688|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Drumian|||inferred, biostratigraphic correlation|deposition|Cambrian Series 2|||inferred, biostratigraphic correlation|||580||No|44197|64612|||||Supersedes Knowsley East beds/ "Dinesus-Hydroid Beds" and Goldie beds of Thomas (1956). NOTE:Goldie Chert at KILMORE is NOT included - instead it overlies/interfingers with Knowsley East Shale. Black shale, chert and volcaniclastic units. On KILMORE this shale is equivalent to Monageetta Shale (VandenBerg 1992) and correlates with Goldie Chert see RefID: 60599.  Contains rare Botoman (ca 518-513Ma) trilobites [form 2006 reference]. Trilobites occur in 2 fossiliferous bands, and a rich hydroid fauna in some areas.  Max. thickness: 580m in KILMORE.|Deep water hemipelagic sediments: shale, mudstone, minor interbedded mafic volcanic sandstone; slump deposits: monomictic chert breccia and polymictic conglomerate (60592).|siliciclastic sedimentary rock|||N||17-JAN-23
Knowsley East Shale, Goldie Chert|73608|||||Yes|Formation, beds|Informal|Variation of published name|Unpublished|||||Late Cambrian||||deposition|Middle Cambrian||||||||No|||Raymond, O.L.|29-AUG-07|||Informal unit for the 1:1 million Surface Geology of Australia dataset|Deep-marine sediments: shale, mudstone, interbedded mafic volcaniclastic sandstone, conglomerate; slump deposits: black shale and mudstone, monomictic chert breccia and polymictic conglomerate; chert, siliceous siltstone|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Koala Creek Formation|35515|Koala Creek Sandstone|9693|||Yes|Formation, beds|Formal|Variation of published name|Described|Cathedral Group|3787|||Eifelian||||deposition|Eifelian||||||||No|23309||VandenBerg A. H. M.|22-MAY-00|||To be used in the Tasman Fold Belt System in Victoria Special Publication.|Sandstone|siliciclastic sedimentary rock|||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
Konagaderra shaley flysch|9747|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|33020||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Konkon Sandstone|9761|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||deposition|||||||||No|41715|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Konong Wootong Granodiorite|37755|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|63446||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G420|I-type granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Koolomurt Granodiorite|37254|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ordovician||||intrusion|Ordovician||||||||No|23309|50154|||||Intrudes Glendara Adamellite. Age and lithology updated from GSV data (HG, Dec 2005)|Greenish-grey biotite granodiorite: massive, medium to coarse grained, equigranular; accessory magnetite, sphene and allanite; sporadic mafic biotite-hornblende-rich mafic microgranitoid enclaves; magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Koomberar Formation|32560|Barmouth Creek Formation|31417|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Barmouth Group|32559|||Late Silurian||||eruption|Late Silurian||||||||No|22968||Willman C.E.|13-JAN-98|||Omeo 1:100 000 sheet area (8423).|Sandstone, conglomerate: sandstone thick to thin-bedded, sandstone and conglomerate both volcanilithic with mafic and lesser rhyolitic rock fragments; minor mudstone; possible rhyolite lava.|siliciclastic sedimentary rock|||N||17-JAN-23
Koonalunda Lens|9790|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|35066|||||||||||N||17-JAN-23
Koonwarra Fossil Bed|9798|||||Yes|Bed|Formal|Variation of published name|Briefly described|Strzelecki Group|17440|||Lower Cretaceous||||deposition|Lower Cretaceous|116|5|fission track|||||No|41426||||||See also Koonwarra Fish beds.|Fish fossils in varved lake deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Kooreelah Diorite|77724|Kooreelah Gabbro-Diorite|41184|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Caupaul Igneous Complex|37235|||||||intrusion|||||||||No|66002||||||Of Caupaul Igneous Complex. G428. Defined by Morand et al. 2003.|||||Y||17-JAN-23
Kooreelah Gabbro-Diorite|41184|Kooreelah Gabbro-diorite|37567|||Yes|Formation, beds|Formal|Variation of published name|Defined|Caupaul Igneous Complex|37235|||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|50154|50154|||||G428 Probably supersedes the Caupaul Quartz Diorite. Age and lithology updated from GSV data (HG, Dec 2005)|Quartz diorite to quartz monzodiorite: massive, dark grey-brown, medium-grained, equigranular containing plagioclase, biotite, clinopyroxene, orthopyroxene and magnetite; magnetic.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Kooreh Granite|28137|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Of Mount Cole Suite. G357. Deeply weathered, non magnetic pluton. Age and lithology updated from GSV data (HG, Dec 2005)|Granite: non-magnetic; deeply weathered.|acid intrusive rock|||Y|I-type|17-JAN-23
Kooyoora Granite|9807|Kooyoora Adamellite|36974|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Lower Devonian|401|8|isotopic, K/Ar|||||No|23260||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G347|Biotite-hornblende-muscovite granite: mostly evenly coarse-grained, locally porphyritic; mafic enclaves; pegmatite and aplite dykes; nonmagnetic.Contains an aplitic phase.|acid intrusive rock|||Y|I-type|17-JAN-23
Kooyoora Granite - aplitic phase 79678|79678|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Kooyoora Granite|9807|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G347a.|Aplite.|acid intrusive rock|||Y||17-JAN-23
Korong Creek Tonalite|37756|Korong Granite|22136|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Devonian|389|6|isotopic, K/Ar|intrusion|Lower Devonian|394|6|isotopic, K/Ar|||||No|23309||||||Probably meant to replace Korong Granite.  Tonalite: oxidised; magnetic response to 160 nT (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende tonalite: porphyritic in plagioclase; I-type; magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Korumburra Subgroup|39833|Korumburra Group|9827|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Strzelecki Group|17440|||Albian|||||Barremian||||||||No|13323||||||See also Korumburra Group.|Non-marine arkose and volcaniclastics.|siliciclastic sedimentary rock|||N||17-JAN-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
Kotupna Sands|25133|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35474|||||||Sand|siliciclastic sedimentary rock|||N||17-JAN-23
Kout Norien Granodiorite|33131|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Cambrian|466|6||intrusion|Middle Cambrian|487|6||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granodiorite: foliated, medium grained, porphyritic with phenocrysts of plagioclase and microcline; accessory sillimanite; common enclaves of schists and migmatite; foliation is defined by biotite-rich schlieren; non-magnetic.|acid intrusive rock|||Y|S-type|17-JAN-23
Kow Sand|9844|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|33486|||||||Sand|siliciclastic sedimentary rock|||N||17-JAN-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
Kuark Metamorphic Complex - K-feldspar-sillimanite zone 79714|79714|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Kuark Metamorphic Complex|9854|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Suk.|Schist, gneiss and minor migmatite containing biotite, sillimanite, K-feldspar, quartz, cordierite, plagioclase.|high grade metamorphic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Kuark Metamorphic Complex - cordierite-andalusite zone 79713|79713|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Kuark Metamorphic Complex|9854|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Suc.|Cordierite-andalusite schist and phyllite with porphyroblasts of andalusite and/or cordierite in a schistose mica/quartz matrix. Bedding rarely seen.|metasedimentary siliciclastic rock|||N||17-JAN-23
Kuark Metamorphic Complex Supersuite|34704|||||Yes|Supergroup|Informal|Variation of published name|Briefly described|||||Late Silurian|||||Late Silurian||||||||No|22876||||||Informal name refers to granites which intrude the Kuark Metamorphic Complex.|||||Y||17-JAN-23
Kyalite Member|9964|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Woorinen Formation|20618|||Holocene||||deposition|Upper Pleistocene|||||||VIC|No|70961|42966||||||||||N||17-JAN-23
Laceby Gravel Member|9986|Wangaratta Gravel Member|37325|||Yes|Member, phase|Formal|Unknown or process pending|Described|Shepparton Formation|25474|||||||deposition||||||||VIC|Yes|35091|||||08-NOV-76|Definition card held for the unpublished name Wangaratta Gravel Member is the same unit. Definition retyped from a photocopy. See [file?] 75/381 8-NOV-1976.|Gravel|siliciclastic sedimentary rock|||N||17-JAN-23
Lacepede Formation|9990|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Rupelian||||deposition|Lutetian||||||200||No|34308||||||Probably obsolete name. Rocks of this unit probably now included in Narrawaturk Marl, Nirranda Group. [CEBMar2009]|||||N||17-JAN-23
Lady Fiona Sandstone|39638|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Laira Formation|10030|||||Yes|Formation, beds|Formal|Other new published name|Defined|Crayfish Subgroup|4874|||Barremian||||deposition|Valanginian||||||890|SA|No|42361|42361|||||Of Crayfish Group, Otway Supergroup (SA) or of the Crayfish Subgroup, Otway Group (Vic, GA).|Consists predominantly of shale, siltstone with minor fine-grained sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Lake Boga Granite|10035|Lake Boga granite|31811|||Yes|Formation, beds|Formal|Other new published name|Described|||||Upper Devonian|356|5|isotopic, K/Ar|intrusion|Lower Devonian|366|7|isotopic, K/Ar|||||No|31747||||||Name introduced by Hills (1939) as Lake Boga granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G321.|Alkali-feldspar muscovite-biotite granite, aplite and pegmatite; non-magnetic; fractionated; porphyritic, S-type; abundant miarolitic cavities and muscovite and tourmaline segregations. Miarolitic cavities lined with quartz, microcline and albite.|acid intrusive rock|||Y|S-type|17-JAN-23
Lake Bonney Sand|10036|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37661|||||||Sand|sediment|||N||17-JAN-23
Lake Mountain Rhyodacite|10062|Lake Mountain rhyodacite|10063|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cerberean Subgroup|3872|||Mississippian|353|||eruption|Upper Devonian||||||900||No|35277||||||See also Lake Mountain Biotite Rhyodacite.|Rhyolite to rhyodacite: uniform, porphyritic with abundant phenocrysts of quartz, plagioclase and biotite, minor enstatite, almandine, rare orthoclase, very rare cordierite; rare pumiceous ignimbrite (base).|acid volcanic rock|||N||17-JAN-23
Lake Reeve Sand Member|10068|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Jemmys Point Formation|8906|||Pliocene|||inferred, lithostratigraphic correlation|deposition|Pliocene|||inferred, lithostratigraphic correlation|||||No|35273||||||See also Lake Reeve Sand. Age from parent - Jemmys Point Formation.|Sand|siliciclastic sedimentary rock|||N||17-JAN-23
Lake Wellington Formation|10076|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Miocene||||deposition|Miocene||||||||No|38929||||||Lake Wellington and Seaspray Depressions, onshore Gippsland Basin.|||||N||17-JAN-23
Lakelands Flat Andesite Breccia|22162|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||eruption|Early Cambrian||||||||No|61187||VandenBerg, A.H.M.|07-SEP-94|||Cambrian|Andesite breccia, polymictic; minor clinopyroxene-phyric andesite lava; marine.|intermediate volcanic rock|||N||17-JAN-23
Lakes Entrance Formation|10081|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Latrobe Valley Subgroup|39333|||Burdigalian||||deposition|Rupelian||||||500||No|48631||||||Of the Latrobe Valley Subgroup (Seaspray Group).|Consists of a basal sand and gravel member, a glauconitic sandstone member, a micaceous marl member and an interbedded marl limestone member.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Lal Lal Formation|10088|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Eocene||||deposition|Paleocene||||||21||No|39865||||||Some regard this as a junior synonym of Yaloak Formation, but see comments.|White ligneous clay.|regolith|||N||17-JAN-23
Lalgambook Breccia|39876|||||Yes|Formation, beds|Formal|Other new published name|Defined|Newer Volcanic Group|38291|||Pleistocene|||||Pleistocene|.4|2|||||VIC|No|24383||||||Lalgambook is an Aboriginal name for Mount Franklin.|Breccia|basic volcanic rock|||N||17-JAN-23
Lalkaldarno Porphyry|24352|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Stavely Volcanic Complex|13108|||Late Cambrian|496|3|isotopic, Ar/Ar|intrusion|Late Cambrian|504|2|isotopic, U/Pb-Pb/Pb ICP-MS||||VIC|Yes|38436|40887|G.L.Buckland|08-FEB-82||||Porphyritic hornblende tonalite with phenocrysts of plagioclase, quartz, hornblende and augite in a fine grained quartzo-feldpathic mosaic; high-level intrusion.|intermediate intrusive rock|||Y||17-JAN-23
Lang Lang Sands|10150|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No|30083|||||||Sands|sediment|||N||17-JAN-23
Langi Ghiran Granite|23715|Mount Langi Ghiran Granite|34426|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Cole Suite|28790|Middle Devonian|392|5||intrusion|Lower Devonian|407|22||||||No|42726||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G376|Medium grained, highly fractionated, biotite granite; even texture. Little or no magnetite.|acid intrusive rock|||Y|I-type|17-JAN-23
Lanky Creek Sandstone Member|74893|Lanky Creek Sandstone|69619|||Yes|Member, phase|Formal|Variation of reserved name|Described|Snowy Plains Formation|17054|||Tournaisian||||deposition|Tournaisian||||||||No|64606||||||Reserved as Lanky Creek Sandstone (VandenBerg, F., 2005).|Sandstone, lesser mudstone: alluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Lano Gully Sandstone|24354|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Romsey Subgroup|37591|||Lower Ordovician||||deposition|Lower Ordovician||||||280|VIC|Yes|40136|42826|VandenBerg, A.H.M.|04-JUL-79|Vic SNSC|26-SEP-79||Sandstone and minor siltstone; massive, thick bedded, lithic, micaceous, quartz sandstone with minor grey siltstone interbeds; unfossiliferous; deep-marine turbidite fan deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Lara Limestone|10182|Lara limestone|10183|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pleistocene||||deposition|Pleistocene||||||||No|70998|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Larsen Creek Ignimbrite|30342|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Dartella Volcanic Group|23535|||Lower Devonian||||eruption|Lower Devonian||||||300||No|60503||VandenBerg, A.H.M.|16-JUL-96|||Benambra 1:100 000 sheet area.|Ignimbrite:tuff; rhyolitic feldspar ignimbrite, variable phenocryst content and quartz:feldspar ratio, densely welded groundmass, often pumiceous with well developed eutaxitic foliation. Weakly magnetic; moderate K, low to moderate total count, U, low Th|acid volcanic rock|||N||17-JAN-23
Latrobe Group|10217|Latrobe group|10229|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Rupelian|||||Turonian||||||4000||No|30836||||||This name is entrenched in the petroleum industry for offshore Gippsland Basin rocks. Has broader meaning than Latrobe Valley Coal Measures, Latrobe Valley Subgroup. Was intended to be replaced by the Latrobe Valley Group.|Dominated by non-marine, fine- to medium-grained siliciclastics interspersed with coal horizons.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Latrobe Valley Subgroup|39333|Latrobe Valley Group|10224|||Yes|Subgroup|Formal|Variation of published name|Briefly described|Seaspray Group|16717|||Tortonian|||||Rupelian||||||||No|13323||||||Part of Seaspray Group (onshore). See also older name Latrobe Valley Coal Measures.|Non-marine to paralic clastics.|siliciclastic sedimentary rock|||N||17-JAN-23
Laura Formation|34333|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Barremian||||deposition|Barremian||||||1000||No|22674|||||||||||N||17-JAN-23
Lauriston Sandstone|72945|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||deposition|||||||||No|61186||||||Victorian dimension stone. Probably an informal trade name.|Fine-grained, pale brown featureless, massive rock with variable clay content.|siliciclastic sedimentary rock|||N||17-JAN-23
Lazarini Siltstone|22177|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Jordan River Group|9028|||Rhuddanian||||deposition|Katian||||||625||No|44187||VandenBerg A.H.M., Willman C. & Hendrickx M.|23-JUN-94|||WARBURTON 1:250 000 sheet area.|Dark grey to green-grey siltstone with bedding in the form of colour banding; abundant dark bioturbation blebs; lowest portion contains interbedded quartz sandstone beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Lazarini Siltstone, Donnellys Creek Siltstone|79966|Lazarini Formation, Donellys Creek Formation|37689|||Yes|Formation, beds|Informal|Variation of published name|Not recorded|Jordan River Group|9028|||Llandovery||||deposition|Bolindian||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Lazarini Formation and Donellys Creek Formation.|Marine mudstone|fine grained siliciclastic rock|||N||17-JAN-23
Lazy Bar Andesite|30462|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Heathcote Volcanic Group|68647|||Early Cambrian||||eruption|Early Cambrian||||||130||No|60599|64612|Wohlt K.|03-SEP-96|||Redefined 2008. Heathcote area.  Intruded by Commissioners Flat Granodiorite.|Deep marine andesite: fine- to medium-grained, non-vesicular, porphyritic; minor hyaloclastite breccia, andesitic volcanic sandstone, ash with possible pumice (60592). Nonmagnetic (<1 nT) with moderately magnetic trends; low K, Th and U (60597).|intermediate volcanic rock|||N||17-JAN-23
Lerderderg Gravel Member|10350|Lerderderg Formation|10349|||Yes|Member, phase|Formal|Variation of published name|Described|Werribee Formation|29131|||Paleogene||||deposition|Paleogene||||||||No|39865||||||Of Roberts (1984); formerly Lerderderg Formation of Thomas and Baragwanath (1950).|Gravel.|siliciclastic sedimentary rock|||N||17-JAN-23
Leviathan Formation|72621|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Saint Arnaud Group|23952|||Middle Cambrian||||deposition|Early Cambrian||||||1500||No|62747|||||||Fine- to medium-grained turbiditic, deep marine sandstone, with minor interbedded siltstone and shale; pervasively muscovite altered.|siliciclastic sedimentary rock|||N||17-JAN-23
Lewis Farm Conglomerate|35111|||||Yes|Formation, beds|Formal|Other new published name|Described|Tolmie Igneous Complex|26950|||Frasnian||||deposition|Givetian|||inferred, biostratigraphic correlation|||100||No|22971||||||In the Wangaratta Area. Age: 392-385 Ma (Long and Werdelin, 1986) Givetian age from palaeontological evidence (RefID 69669, 2014).|Upward-fining sequence of quartzose conglomerate and interbedded sandstone consisting of entirely of basement  clasts; conglomerate in thick-bedded showing channel structures; fish fauna.|siliciclastic sedimentary rock|||N||17-JAN-23
Lexington Schist|37571|||||Yes|Formation, beds|Formal|Other new published name|Described|Moornambool Metamorphic Complex|37578|||Silurian|||||Late Cambrian||||||||No|61187|||||||Quartz-biotite-muscovite-plagioclase (+/-actinolite+/-cordierite+/-andalusite) schist; banded schist with alternating quartz and pelite layers of transposed bedding; shows textural variations to hornfels where contact metamorphosed by Devonian granite. L|metasedimentary siliciclastic rock|||N||17-JAN-23
Lexton Granodiorite|22190|Burnbank Granodiorite|3081|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Glenlogie Suite|7426|Lower Devonian|374|11||intrusion|Lower Devonian|396|5||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G370|Hornblende-biotite granodiorite: pale grey to pink, medium grained; with accessory magnetite; fractionated, pale cream, fine grained, foliated phase forms Granite Hill.|acid intrusive rock|||Y|I-type|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
Licola Volcanics|22192|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Cambrian||||eruption|Early Cambrian||||||||No|22708||VandenBerg, A.H.M.|30-JUN-94||||Pale green-grey rhyolite lava, minor rhyolitic volcaniclastics, quartz-phyric; with intercalated crystal-rich sandstone; andesite breccia and lava, volcanogenic sandstone, phosphatic shale, limestone megaclasts|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Licola Volcanics, Jamieson Volcanics, Mount Stavely Volcanics|37668|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Late Cambrian||||eruption|Middle Cambrian||||||||No|||||||Calc-alkaline association. Lithology referring to informal grouping of units to be used for Victoria 1:1 million geological map, National Maps Project. Includes rocks from Licola, Jamieson and Mount Stavely Volcanics.|Calc-alkaline andesite, includes basalt, dacite, rhyolite|basic volcanic rock|||N||17-JAN-23
Lilly Pilly Granite|25166|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Promontory Suite|31627|Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G256|Granite: red-brown biotite is ubiquitous and garnet is prominent in some rocks; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Lilydale Limestone|28680|Lilydale Limestone Member|10407|||Yes|Formation, beds|Formal|Variation of published name|Described|Murrindindi Supergroup|35522|||Pragian||||deposition|Pragian||||||||No|43532||||||See also Lilydale Limestone Lens. Victorian dimension stone.|Limestone, fine-grained, hard and dark grey in colour; part is coarse-grained with veins and patches; rich in fossil fragments displaying corals, brachiopods and crinoids.|carbonate sedimentary rock|||N||17-JAN-23
Limestone Creek marble|72946|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|61186||||||Informal name for Victorian dimension stone. Probably named for the quarry locality.||carbonate sedimentary rock|||N||17-JAN-23
Lindenow Sand Member|68626|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Gippsland Limestone|7269|||Miocene||||deposition|Miocene||||||||No|24551|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Lintons Creek Conglomerate Member|27047|Linton's Creek Conglomerate Member|10446|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Springfield Formation|17213|||Llandovery||||deposition|Llandovery||||||||No|41585||VandenBerg, A.H.M.|08-OCT-84||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Liptrap Formation|26691|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Walhalla Group|19233|||Pragian||||deposition|Lochkovian||||||3200||No|43461|||||||Thin-bedded, quartz-rich siltstone and sandstone; minor thick-bedded sandstone and gritstone, rare diamictite|siliciclastic sedimentary rock|||N||17-JAN-23
Little Mount Tambo Trachyte Member|41864|Little Mount Tambo Trachyte|30288|||Yes|Member, phase|Formal|Resvd name published|Fully described|Teapot Creek Formation|34827|||Triassic||||eruption|Triassic||||||||No|60507||||||Intruded by Bung Bung Syenite.|Trachyte lava: dense, black, strongly porphyritic with feldspar phenocrysts in a dark groundmass (60505). No intercalated volcaniclastic sediments. Intensely magnetic (1000 nT); high total count, K, moderate Th, U (60508)|intermediate volcanic rock|||N||17-JAN-23
Little River Subgroup|22204|||||Yes|Subgroup|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Pragian||||deposition|Lochkovian||||||||No|43206||Orth K.|20-SEP-89|||Previously included Yellow Waterholes Ignimbrite (Orth et al. 1995), which was later moved into Tara Range Subgroup by VandenBerg et al. (2000).|Subaerial rhyolitic ignimbrite, lava, pyroclastics, fluvial and lacustrine sediments (conglomerate, sandstone, mudstone, chert).|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Livingstone Creek Tonalite|34853|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Polar Star Suite|34903|Lochkovian||||intrusion|Pridoli||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G145|Weakly to moderately magnetic, grey, medium grained, weakly foliated, I-type biotite tonalite.|acid intrusive rock|||Y|I-type|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
Locmany Formation|74900|Locmany Member|33946|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tyers River Subgroup|33942|||Hauterivian||||deposition|Valanginian||||||||No|64605||||||Note: In spite of GSV clear intentions in 2006, Locmany Member used again in 2015.|Sandstone, siltstone, minor conglomerate, coal: sandstones are quartzarenite, sublitharenite, litharenite, rare lithic arkose and feldsarenite; fine to medium-grained; thick-bedded; cross-bedded; siltstone pale grey to brown, thin-bedded.|sedimentary rock|||N||17-AUG-23
Loddon River Group|35339|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Pliocene||||deposition|Eocene||||||||No|24104||||||Unit created by Hughes, Carey & Kotsonis (1999) in Regolith '98 [to be indexed soon]. It is a combination of Calivil Formation (sensu lato) and the "sub-basaltic gravels" of south draining palaeovalleys. Includes Calivil Formation at its type section. Said to include Deep-lead sedimentary sequence encompassing Calivil, Olney and Denicull Formations (refID 62370, 2006). Not used by GSV (VandenBerg 2009).|Fluvial gravels, deap leads. Very fine- to coarse-grained, poorly to moderately sorted sands.|siliciclastic sedimentary rock|||N||17-JAN-23
Loddon Vale Granite|10579|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Mount Cole Suite|28790|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Formal name not intended in 1991, but used by GSV 2005, 2006. Subsurface unit. May be part of Mount Cole Suite.|Granite: peraluminous, high-Na chemistry. Contains hornblende, sphene and allanite or monazite, and strongly magnetic phases.|acid intrusive rock|||Y||17-JAN-23
Loftus Creek Granodiorite|37251|Sawpit Gully Granodiorite|29545|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Lower Ordovician|484|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|23309|50154|||||Formerly mapped as Sawpit Gully Granodiorite. Age and lithology updated from GSV data (HG, Dec 2005)|Grey hornblende-biotite granodiorite: massive, medium to coarse grained, porphyritic with phenocrysts of biotite and alkali feldspar; accessory magnetite and sphene; uncommon microgranitoid enclaves; magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Long Point Formation|10625|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|35720|||||||||||N||17-JAN-23
Longford Limestone|10631|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Seaspray Group|16717|||Langhian||||deposition|Aquitanian||||||||No|44215|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Lookout Top Ignimbrite|22216|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Pragian||||eruption|Pragian||||||330||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Characterised by large quartz crystals commonly 3mm in size, with abundant red pumice (15%) and some red and green volcanic clasts present.|acid volcanic 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
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
Loveday Soil|10684|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Pleistocene||||deposition|Upper Pleistocene||||||||No|34180||||||Developed locally in association with Wiabuna Formation. Previously considered part of the Pooraka Formation. More recently considered to be contained in the Woorinen Formation (equivalent).|Regolith unit, soil.|regolith|||N||17-JAN-23
Lower Tableland Granite|30588|Fraser Tableland Granite|30283|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|43220||||||Tallangatta 1:250 000 sheet area. This granite may possibly belong to the Silver Flat Porphyries, although it is much more crystallised. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G116|Moderately magnetic, grey, medium grained, biotite granite; equigranular with leucocratic fine grained chilled border phase|acid intrusive rock|||Y|S-type|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
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
Ludrik Munjie Granite|37759|Ludrik-Munjie Granite|30686|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock||||intrusion|Llandovery||||||||No|60503||||||nonmagnetic (0-5 nT) with weakly north-northwest trending dykes; high K except west of Mitta Mitta River, low Th, U, variable total count. In faulted contact with Anglers Rest Granite. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granite: dark to light grey; medium to coarse-grained; well foliated; high compositional variability: numerous metasedimentary enclaves; generally weathered: S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Lurg Granite|27471|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G200|Fractionated granite; fine to medium grained porphyritic phases and coarse-grained phases; contains miarolitic cavities and areas of granophyre; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Lysterfield Granodiorite|10904|Lysterfield granodiorite|10905|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|71180||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G241.  There is some debate as to whether this unit is included in the Dandenong Ranges Igneous Complex which it bounds along a faulted contact. LREE enriched over HREE.|Biotite-hornblende granodiorite: grey, medium grained, containing quartz, plagioclase, orthoclase, biotite, minor hornblende, accessory apatite, ilmenite, allanite, sphene, tourmaline and zircon.|acid intrusive rock|||Y|I-type|17-JAN-23
Mac Creek Granodiorite|30687|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Wenlock||||intrusion|Llandovery||||||||No|60503||VandenBerg, A.H.M.|23-DEC-96|||Benambra 1:100 000 sheet area. Intrudes the Omeo Metamorphic Complex. See also Macs Creek Granodiorite, Macs Creek granodiorite.  Creek is named both Mac Creek and Macs Creek!  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G85|Grey, foliated, medium grained, muscovite granite; S-type; margins rich in metasedimentary enclaves. Nonmagnetic except where intruded by moderately magnetic syenite(?) or north-south dykes|acid intrusive rock|||Y|S-type|17-JAN-23
MacFarlane Syenite|30682|Macfarlane Syenite|30291|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60507||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Benambra 1:100 000 sheet area. Misspelt as Macfarlane Syenite when first reserved. See also the misspelt MacFarlanes Syenite. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite syenite: grey, coarsely porphyritic in the south and northeast, equigranular in the northwest; phenocrysts are orthoclase: A-type|intermediate intrusive rock|||Y|A-type|17-JAN-23
MacRae Ignimbrite|73662|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Snowy River Volcanic Group|28138|||Devonian||||intrusion|Devonian||||||||No|63594||||||||acid volcanic rock|||N||17-JAN-23
Macedon Igneous Complex|10936|Mount Macedon Complex|12899|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|29709||||||Of Edwards et al. (1997) as ?Mount Macedon Igneous Complex. Replaced by Macedon Volcanics for some years but the name Macedon Igneous Complex has been restored (GSV Report 129, p6-7) [noted OCT-2010]. See also Macedon Volcanics Group.|Subaerial caldera volcanics: rhyodacitic to dacitic ignimbrite; felsic intrusives.|acid volcanic rock|acid intrusive rock||Y||17-JAN-23
Mackenzie River Granodiorite|26714|Mackenzie River granodiorite|10947|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mafeking Suite|10993|Lower Devonian|368|4||intrusion|Lower Devonian|402|8||||||No|30928||||||See also McKenzie River Granodiorite and MacKenzie River Granodiorite.  Moderate to high magnetic response; high K (44931).|Felsic, oxidised, I-type, hornblende biotite granodiorite; medium to coarse-grained, equigranular to porphyritic, pinkish-grey; rare mafic and microgranitic enclaves, apatite and granophyric felsic dykes particularly at the margins, miarolitic cavities.|acid intrusive rock|||Y|I-type|10-SEP-23
Mackerel Formation|32301|Mackerel sands|10948|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Halibut Subgroup|32294|||Thanetian||||deposition|Danian||||||||No|13323||Partridge A.D.|02-FEB-98||||Dominantly prograding sandstones with nearshore marine shales.|siliciclastic sedimentary rock|||N||12-SEP-23
Mackiesons Spur Tuff|37574|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|White Monkey Volcanic Group|68411|||Lower Devonian||||eruption|Lower Devonian||||||300||No|23309||||||Appears as Mackieson Spur Tuff in 2011.|Vitric ignimbrite with wispy attenuated pumice fragments, ash and fine sandstone.|acid volcanic rock|||N||17-JAN-23
Macorna pluton|83403|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian|||inferred||Upper Devonian|||inferred|||||No|73496||||||G317. Nonmagnetic; gravity low about 5 micrometres/second/second below the regional. See also Macorna Granite.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Macropleura band|79024|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Eden Park Formation|79022|||Ludlow|||||Ludlow||||||||No|62469||||||=Hedeina band = Spirifer band. In lowermost Notoparmella plentiensis Assemblage Zone. 130-140m above base of Eden Park Formation of Sandford (2005) and 130m above base of Humevale Siltstone of Williams (1964). May be included in Humevale Siltstone again after Morand (2010) GSV Technical Record 2010/1.|||||N||17-JAN-23
Mafeking Granodiorite|26716|Mafeking Tonalite|32450|||Yes|Formation, beds|Formal|Variation of published name|Described|||Mafeking Suite|10993|Lower Devonian|396|2||intrusion|Lower Devonian|404.3|1.6|isotopic, U/Pb-Pb/Pb ion probe|||||No|30579||||||Supersedes Mafeking Tonalite. Moderate to high magnetic response; high K (44931). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G396|Pale grey, medium grained, hornblende biotite granodiorite: equigranular to porphyritic; bipyramidal quartz, rare mafic enclaves and patchy deuteric alteration; deeply weathered to fresh; mafic, oxidised, I-type.|acid intrusive rock|||Y|I-type|05-SEP-23
Mafeking Suite|10993|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|41563|||||||Granites containing small amounts of gold.|acid intrusive rock|||Y|I-type|17-JAN-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
Maitland Beach Volcanics|33278|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Cambrian||||eruption|Cambrian||||||||No|23309||VandenBerg A.H.M|15-JAN-99|||To be used in the Tasman Fold Belt System in Victoria Special Publication.|Tholeiitic basalt, gabbro|basic volcanic rock|||N||17-JAN-23
Major Mitchell Sandstone|30435|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||450||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Quartz sandstone, reddish-yellow, medium- to coarse-grained, somewhat micaceous or feldspathic; abundant Skolithos trace fossils.|siliciclastic sedimentary rock|||N||17-JAN-23
Malanganee Sand|11065|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Holocene||||deposition|Pliocene||||||||No|30928||||||Equivalent to the Lowan Sand.|Sand|sediment|||N||17-JAN-23
Malcolm Creek Hyaloclastite|22248|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Lickhole Volcanic Group|37572|||Cambrian||||deposition|Cambrian||||||||No|23309||VandenBerg, A.H.M.|30-JUN-94||||Boninitic hyaloclastite with occasional beds of pebbly grit and volcaniclastic sandstone.|intermediate volcanic rock|||N||17-JAN-23
Maldon Granodiorite|35571|Maldon Granite|11083|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Harcourt Suite|8070|Upper Devonian||||intrusion|Upper Devonian|368|||||||No|23261||||||Max Age: 368 Ma.  See also the informal Maldon Granite.  Incorporated into the Harcourt Granodiorite? (Tasman F.B. in Victoria, 2000). Incorporated into Baringhup Granodiorite (National Geological Maps 2005)|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Mammoth Porphyry|37575|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Avon Supergroup|35960|||Eifelian|||||Pragian|402|7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|60503||||||Of VandenBerg et al, 1998. Age: 402+/-7Ma U/Pb (Arne et al., 1996) . Geological Province: Cravensville Igneous Province. See also Mammoth lode porphyry.|Quartz-feldspar porphyry: phenocrysts of quartz, plagioclase and lesser alkali feldspar in a very fine groundmass that is altered to sericite, carbonate and clay; abundant pyrite; dyke margins have breccia with sulphide mineralisation.|acid volcanic rock|||U||17-JAN-23
Manangatang pluton|83443|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||G316. Granite; variably magnetic, to 80 nT; gravity low to 100 micrometres/second/second below regional. See also Manangatang Granite used in  Moore (2005) Explan Notes RefID 73505.|Granite.|acid intrusive rock|||Y||17-JAN-23
Mannum Formation|11187|Mannum Limestone|11190|||Yes|Formation, beds|Formal|Other new published name|Defined|Murray Group|13544|||Burdigalian|20.5|||deposition|Chattian|24|||||100|SA|No|9124|42966|||||Part of the Ludbrook (1961) stratigraphic scheme for the Murray Group until 1995 when Rogers et al replaced it together with Morgan Limestone and Pata Limestone with the single unit, Mannum Limestone. Reinstated as Mannum Formation during the Lukasik and James (1998) revision of Murray Group up to Murray Supergroup, and retained as Mannum Formation when Murray Group was reinstated. Divided into "upper Mannum Formation" and "lower Mannum Formation" by Lukasic and James (1998) - which are retained in the reinstated Murray Group, including Swan Reach Dolomite Member in lower section.|Low energy carbonate ramp sediments with common echinoids, bryozoans and molluscs. Calcarenite,calcisiltite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Mansfield Group|28720|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|Avon Supergroup|35960|||Tournaisian|355||biozone|deposition|Famennian|370|||||||No|33602||||||Includes Early Carboniferous vertebrate fauna.|Fluvial red sandstone, conglomerate, mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mansfield Group, Avon Supergroup, Merrimbula Group|37671|||||Yes|Group, Suite|Informal|Variation of published name|Not recorded|||||Devonian|||||Devonian||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Mansfield, Avon River and Merrimbula Groups.|Fluvial (to marine in east): red mudstone, minor sandstone, conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Manta Member|75879|||||Yes|Member, phase|Reserved|Reserved|Mentioned|Volador Formation|32295|||Maastrichtian||||deposition|Maastrichtian||||||||No|70076||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Of Volador Formation, Gippsland Basin. Named after the Manta-1 well the Manta Member (which is located within the upper part of the Volador Formation), is proposed for a sand/shale couplet consisting of a prominent shale on the gamma ray log, and corresponding broad separation on the density/porosity logs, overlain by a distinctive coarsening upward sandstone. Based on this log character the Manta Member displays the same log motif as the sand/shale couplet consisting of the Kate Shale and Grunter Member, where these units occur in thinner well intersections (e.g. Kipper-1). However, the Manta Member is demonstrably older lying near the base of the Upper F. longus Zone and well within the Maastrichtian, rather than straddling the Cretaceous/Tertiary boundary. Because the Manta Member can potentially be mistaken for, or confused with, the Kate Shale (when correlating ONLY with electric logs) it is imperative to differentiate it on the stratigraphic charts by a separate name. It is designated as a member rather than a formation as it has a much more restricted geographic distribution compared to the "look-alike" Kate Shale. The type section is designated from 2400 to 2449m in Manta-1.|||||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
Marble Creek Limestone|11247|Marble Creek limestone|25205|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33407|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Marengo Granodiorite|27479|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Pridoli||||intrusion|Llandovery||||||||No|23710||||||Same as Marengo Granite?  Intrudes Omeo Metamorphic Complex. Intruded by Duggan Creek Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G120|Intensely magnetic, light grey to light green, medium to coarse grained, I-type hornblende-biotite granodiorite; less magnetic with northeast trends in south.|acid intrusive rock|||Y|I-type|05-SEP-23
Maretimo Clay Member|25207|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Whalers Bluff Formation|19858|||Pliocene||||deposition|Pliocene||||||||No|31625|||||||Clay|sediment|||N||17-JAN-23
Maribyrnong Alluvium|11300|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|71203|||||||Alluvium|regolith|||N||17-JAN-23
Marn Mering Granodiorite|33133|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Cambrian||||intrusion|Late Cambrian||||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria. Age and lithology updated from GSV data (HG, Dec 2005)|Light grey muscovite-biotite leucogranodiorite: massive to weakly foliated, medium to coarse grained, weakly microcline-phyric; accessory garnet in western part of pluton; non-magnetic.|acid intrusive rock|||Y|S-type|17-JAN-23
Maronna Granite|11344|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39967|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Marroo Subgroup|22271|||||Yes|Subgroup|Formal|Resvd name published|Fully described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||||No|43206||K.Orth|05-JUN-87|||Murrindal area.|Extrusive, fluvial: felsic ignimbrite (subaerial rhyolitic ignimbrite), minor conglomerate, sandstone.|acid volcanic rock|||N||17-JAN-23
Marshall Creek Member|74936|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Norton Gully Sandstone|14304|||Emsian||||deposition|Emsian||||||||No|64540||||||Reserved by F.VandenBerg (2005) - as Marshall Creek Sandstone Member.|Medium to thick bedded sandstone, quartz-mica lithic, Tabc turbiditic; graphitic black-dk.grey mudstone, medium- to thick bedded; deep-marine turbidite fan and hemipelagic deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Marthavale Tonalite|32564|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Baldhead Igneous Complex|34911|Rileys Creek Suite|34904|Lower Devonian||||intrusion|Lower Devonian|404|6||||||No|22968||Willman C.E.|13-JAN-98|||Chemical parent: Rileys Creek Suite, which is chemical parent of Mount Baldhead Igneous Complex (replaced by Baldhead Igneous Complex). Geological Survey of Victoria map code: G547. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite-hornblende granodiorite, tonalite, quartz diorite: concentrically zoned; with 2 of 3 phases exposed.|acid intrusive rock|||Y|I-type|17-JAN-23
Marysville Igneous Complex|11424|Marysville Group|11423|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Upper Devonian||||eruption|Upper Devonian|373|4||||||No|70933|||||||Subaerial caldera volcanics: rhyolitic to dacitic ignimbrite, minor andesitic lava, fluvial conglomerate.|acid volcanic rock|||Y||17-JAN-23
Massacre Shale|68588|||||Yes|Formation, beds|Formal|Variation of published name|Described|Wangerrip Group|19406|||Danian||||deposition|Maastrichtian||||||||No|12796||||||See also K/Pg Boundary Shale, K/T Shale, Cretaceous/Paleogene boundary shale.|Shelf to open marine shale.|fine grained siliciclastic rock|||N||17-JAN-23
Matheson pluton|41776|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|61169||VandenBerg, F.|13-SEP-04|||Geological Survey of Victoria map code: G471.|Subsurface pluton.|igneous intrusive rock|||U||17-JAN-23
Matlock Formation|11453|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Lochkovian||||deposition|Lower Devonian||||||||No|43461|||||||||||N||17-JAN-23
Maude Basalt|11464|Maude basalt|11470|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Aquitanian||||eruption|Aquitanian||||||||No|60084||||||Of Bowler (1963). Replaced by Maude Basalt Member ?of Maude Formation (a grab-bag of lithologies), but reinstated in 2009: Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p14, 15-16. Age from appendix in Surface Geology of Victoria 1:250 000 (2011). Previously of Torquay Group?|Alkali olivine basalt; dark grey-green; phenocrysts of olivine; commonly deeply weathered.|basic volcanic rock|||N||17-JAN-23
Mayrung Member|11496|Mayrung member|11497|||Yes|Member, phase|Formal|Other new published name|Defined|Shepparton Formation|25474|||Quaternary||||deposition|Quaternary|||||||VIC|No|70961|42966||||||||||N||17-JAN-23
McAdam Formation, Serpentine Creek Formation|37690|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Jordan River Group|9028|||Wenlock||||deposition|Llandovery||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes McAdam and Serpentine Creek Formations.|Marine turbiditic sandstone, minor siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
McAdam Sandstone|11503|Enochs Point Beds|28535|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Jordan River Group|9028|||Telychian||||deposition|Aeronian||||||500|VIC|Yes|33604|64616|VandenBerg, A.H.M.|15-JAN-74||01-DEC-73|Defn card held [CEB Jul 2002].|Thick-bedded structureless to thin-bedded laminated and current-bedded sandstones, sandy siltstones and minor shales. The thick sandstones typically show very poor sorting, and contain large muscovite flakes.|siliciclastic sedimentary rock|||N||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
McEachern Member|83255|McEachern Sandstone|79440|||Yes|Member, phase|Formal|Other new published name|Described|Sawpit Formation|83256|||Valanginian|||biozone||Berriasian|||biozone|||||No|73386||||||Unclear if this unit is being used for the same rocks as the McEachern Sandstone. Now used as the basal member of the Sawpit Formation in the Penola Trough.|Fluvial sandstones, quartz arenites and subarkoses, with thin interbeds of siltstone and shale.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
McIvor Sandstone|11550|McIvor Beds|74743|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Pridoli||||deposition|Ludlow||||||1900||No|33604|64612|||||Supersedes McIvor Beds (Thomas 1937) -richly fossiliferous sandstone beds subdivided by Thomas into: upper and lower "Camarotoechia beds" separated by the "Grammysia band" . See also McIvor Formation, Mount Ida Beds.|Mainly massive to thick-bedded, pale grey, well-sorted quartzite, minor pebbly sandstone and conglomerate; basal thin-bedded turbidite and bioturbated siltstone.|siliciclastic sedimentary rock|||N||06-SEP-23
McKillops Bridge Granodiorite|28738|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|41850||||||See also MacKillop's Bridge Granodiorite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
McLarty Limestone Member|11561|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Murrindal Limestone|26788|||Devonian||||deposition|Devonian||||||190||No|41585||||||Formerly of Cowombat Siltstone?|Generally well-bedded, organic-rich,lagoonal carbonate; macrofossil-poor.|carbonate sedimentary rock|||N||17-JAN-23
McRaes Ignimbrite|22295|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||200||No|43206||VandenBerg, A.H.M.|15-SEP-89|||Murrindal area.|Quartz ignimbrite, red, with large quartz and small feldspar phenocrysts, and overlying volcaniclastic sandstone and mudstone.|acid volcanic rock|||N||17-JAN-23
Meadow Creek Megabreccia|75845|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Snowy River Volcanic Group|28138|||Pragian|||||Lochkovian||||||||No|68116||VandenBerg, A.H. M. (GSV)|11-FEB-11|||Of the Snowy River Volcanic Group (same as Snowy River Volcanics). Murrindal 100k area. Formerly described as the Meadow Creek Fault Zone. Intruded by Deddick Lava. Overlain by LIttle River Subgroup|Blocks of ignimbrite from Marroo Subgroup, White Monkey Volcanics and Yalmy Group quartzite in matrix of breccia and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Meatian pluton|83437|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G650. Strongly magnetic (to 300 nT) above surrounds); a 10 micrometres/second/second gravity high.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Megascolides Shale|75871|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Hauterivian||||deposition|Valanginian|||||52|160|VIC|No|||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Named after the two Megascolides wells drilled in the Narracan Trough or Block, the Megascolides Shale formation is proposed for a newly discovered unit penetrated at the base of the Strzelecki Group in the Gippsland Basin. The formation consists of shale or mudstone and has a uniform high gamma ray profile and broad separation on the density/porosity logs (Partridge, 2007). Thickness of the formation is 52 metres in Megascolides-1 to 160 metres in Megascolides-2. A thin mixed coal and sand member 15 metres thick occurs at the base of the formation in Megascolides-2. The limited available palynology suggests the formation belongs to either the F. wonthaggiensis or older R. australiensis Zones indicating a probable Valanginian to Hauterivian age range. The formation is shown on the latest stratigraphic chart as being older than the Tyers River Subgroup, based on a speculative jump-correlation with the Casterton Formation in the Otway Basin. The type section is designated as 1900 to 2060m in Megascolides-2.|Shale or mudstone with a uniform high gamma ray profile and broad separation on the density/porosity logs. A thin mixed coal and sand member 15 metres thick occurs at the base of the formation in Megascolides-2.|fine grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Melbourne Formation|11622|Melbourne Group|11623|||Yes|Formation, beds|Formal|Variation of published name|Described|Murrindindi Supergroup|35522|||Ludlow||||deposition|Ludlow||||||||No|33020||||||The lower Melbourne Formation is equivalent to part of the redefined Dargile Formation. In 2010, as part of a reduction in the distribution of the Dargile Formation, the unit mapped as Dargile Formation in the Melbourne area is now considered to be Melbourne Formation.|Siltstone and sandstone: mainly thin-bedded; most beds show undisturbed Bouma sequences.|siliciclastic sedimentary rock|||N||17-JAN-23
Melbourne Suite|41961|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned|||||Middle Devonian|||||Middle Devonian|370||isotopic, Rb/Sr|||||No|60543||||||Rb/Sr age:370Ma.|||||Y||17-JAN-23
Mellick Munjie Granodiorite|30559|Mellick Munjie Granite|25226|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bullenbalong Suite|2895|Lower Devonian||||intrusion|Late Silurian|418|3||||||No|43206||||||Murrindal area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G127|Biotite-cordierite granodiorite: pale grey, coarse-medium grained; minor cordierite; S-type.|acid intrusive rock|||Y|S-type|05-SEP-23
Mepunga Formation|11654|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Nirranda Group|14185|||Priabonian||||deposition|Lutetian||||||380||No|71437||||||In the Gambier Basin. Partly interfingers with Demons Bluff Formation.|Shallow to nearshore marine sandstone and shale.|regolith|||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
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
Merrimu Gravel Member|11725|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Werribee Formation|29131|||Miocene||||deposition|Miocene||||||30||No|39865|||||||Gravel|siliciclastic sedimentary rock|||N||17-JAN-23
Merrymbuela Gabbro|37760|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Gabbro: dark, coarse grained porphyritic (6mm); with plagioclase and orthopyroxene phenocrysts; accessory clinopyroxene, K-feldspar, quartz, biotite and hornblende |basic intrusive rock|||Y||17-JAN-23
Metcalfe Granite|38293|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Harcourt Suite|8070|Upper Devonian||||intrusion|Upper Devonian||||||||No|24384||||||Nonmagnetic with weakly magnetic aureole in Ordovician rocks;  high K, moderate-high Th, moderate U, high total radioelements, areas of deeper weathering have low K and Th. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite granite: pale grey, medium to coarse grained; commonly strongly porphyritic in K-feldspar; numerous metasedimentary enclaves and leucocratic dykes; nonmagnetic |acid intrusive rock|||Y||17-JAN-23
Metropolitan Sandstone|39636|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Metung Marl Member|11748|||||Yes|Member, phase|Formal|Other new published name|Fully described|Lakes Entrance Formation|10081|||Miocene||||deposition|Oligocene||||||||No|35273|||||||Marl|carbonate sedimentary rock|||N||17-JAN-23
Miga Supersuite|78978|||||Yes|Supergroup|Reserved|Reserved|Reserved|||||Late Cambrian|||||Middle Cambrian||||||||No|||Cayley, R. (GSV)|16-DEC-14|||The Miga Supersuite is proposed as a formalisation of the Miga Arc (Cayley et al., 2011), a rock package that underlies much of the Grampians-Stavely Zone of western Victoria (VandenBerg et al., 2000). The Miga Supergroup is proposed to encompass a range of Mid-Late Cambrian igneous products that are all interpreted to be directly related to long-lived continent-dipping subduction along the East Gondwanaland margin at that time (Foden et al., 2006). In Willaura/western Victoria, members of the Miga Supersuite will include the Mount Stavely Volcanic Complex (Buckland, 1986)and mineralised porphyry stocks therein, and the Bushy Creek Igneous Complex. It will include informally named volcanic and igneous complexes in the Mount Dryden, Black Range and Laharum regions of western Victoria, volcanics and sills in the newly recognised Bunnugal Belt south of Dunkeld, and 'Chatsworth Sill Swarm' north of Chatsworth. It will include buried extensions of all these belts that continue in the subsurface along-strike to the north of the Grampians Ranges (Currently under investigation as part of the GA/GSV Stavely project). Farther afield (along strike), potential members of the Miga Supergroup include the Mount Wright Volcanics to the north (Greenfield et al., 2011), and the Jamieson Volcanics (interpreted as along-strike to the south at the time of eruption - (Cayley, 2011). The Miga Supergroup may also include magmatic products of super-subduction zone origin within the the adjacent Glenelg Zone (eg. Kemp, 2003).  Specifically excluded from the Miga Supergroup will be co-located but older and genetically unrelated rock packages such as the Dimboola Igneous Complex (VandenBerg et al., 2000), the WIlliamsons Road Serpentinite and related rocks (Buckland, 1986) and igneous bodies and partial melts of similar age but of crustal origin within the high-Temperature Glenelg River Metamorphic Complex. Younger igneous rocks, such as Early Devonian granitic bodies and the related Rocklands Volcanics, sills and dykes in western Victoria are also excluded.|||||Y||17-JAN-23
Milky Creek Ignimbrite|22332|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||50||No|43206||Orth K|30-NOV-89|||Murrindal area.|Denslely welded vitric-rich pink purple ignimbrite with green pumice fragments.|acid volcanic rock|||N||11-SEP-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
Mincha pluton|83447|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Mount Cole Suite|28790|Devonian|||inferred||Silurian|||inferred|||||No|73497||||||G750. Granite: intensely magnetic (up to 700 nT), gravity low of about 60 micrometres/second/second, estimated depth of 80-200 m.|Granite|acid intrusive rock|||Y||17-JAN-23
Minchin Ignimbrite|30555|Minchin Creek Ignimbrite|22339|||Yes|Formation, beds|Formal|Resvd name published|Fully described|White Monkey Volcanic Group|68411|||Lower Devonian||||eruption|Ludlow||||||80||No|43206||||||Murrindal area.|Vitric ignimbrite, small quartz and feldspar phenocrysts in green-grey or red fine matrix; lithic clasts include ignimbrite, glassy lava, sediment from Yalmy Group.|acid volcanic rock|||N||17-JAN-23
Miralie Member|11955|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Woorinen Formation|20618|||Upper Pleistocene||||deposition|Chibanian|||||||VIC|No|70961|42966||||||||||N||17-JAN-23
Mirimbah Granodiorite|25244|Mount Buller Granite|25272|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Buller Suite|37579|Middle Devonian||||intrusion|Middle Devonian||||||||No|70933||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: 186.  See also the informal Mirimbah Granite and Mirimbah granodiorite.|Hornblende granodiorite, diorite, gabbro: medium to coarse grained.|acid intrusive rock|||Y|I-type|17-JAN-23
Mirranatwa Granite|30445|Long Reach Granite|26700|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Devonian|377|7|isotopic, K/Ar|intrusion|Lower Devonian|403.3|1.6||||||No|44929||Cayley R., Taylor D.|28-AUG-96|||Used on Grampians special map. K/Ar age considered too young, maybe due to argon loss. Age and lithology updated from GSV data (HG, Dec 2005). Note: Victoria Valley (now Dwyer) Granite G399, Mirranatwa Granite G402, and Bullawin Porphyry G403 replace the Victoria Valley Granite 751, Long Reach Granite 751 and Green Hill Granite 752 of Chappell et al 1991. Mirranatwa Granite is partially equivalent to the (obsolete) Long Reach Granite.|Hornblende biotite adamellite to granite: fine- to medium-grained, generally porphyritic; reddish to pale pinkish-grey;  often strongly granophyric, miarolitic cavities; flow folded and banded rhyolitic dykes; felsic, oxidised.|acid intrusive rock|||Y|I-type|05-SEP-23
Mitta Mitta Rhyolite|32392|Mitta Mitta Volcanics|11988|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Pridoli||||eruption|Ludlow||||||||No|44184||||||Tallangatta 1:250 000 sheet area.  Two horizons of volcaniclastic sediments. Silver Flat Porphyries intrusions were included until recognised that they are younger.  Formerly considered  to be part of Wombat Creek Group.|Rhyolite lava; pale grey, massive to autobrecciated, with minor intercalated reworked rhyolitic pyroclastics. Discontinuous nonmagnetic and highly (100-150 nT) magnetic north-northwest trends; low Th, U, bands of high K with low K unit in the east.|acid volcanic rock|||N||17-JAN-23
Moah pluton|83444|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G651. Magnetic response to 150 nT but with nonmagnetic core; gravity response about 10 micrometres/second/second.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Mocamboro Member|11999|Mocamboro Beds|11998|||Yes|Member, phase|Formal|Unknown or process pending|Described|Merino Group|11691|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|34148||||||At Killara Bluff in the Casterton area. Name proposed to be abandoned by Duddy (1983). Equivalent to Eumeralla Formation.|Mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Moe A Seam|83671|||||Yes|Bed|Informal|Variation of published name|Mentioned|Yarragon Formation|24138|||Langhian|||inferred||Burdigalian|||inferred|||||No|73488||||||Unclear how this unit relates to previous uses of Moe Seam, Moe coal seam (ie whether it is a sub-unit, or equivalent). Higher in the succession than Moe B Seam.|||||N||05-FEB-23
Moe B Seam|83672|||||Yes|Bed|Informal|Variation of published name|Mentioned|Yarragon Formation|24138|||Burdigalian|||inferred||Burdigalian|||inferred|||||No|73488||||||Unclear how this unit relates to previous uses of Moe Seam, Moe coal seam (ie whether it is a sub-unit, or equivalent). Lower in the succession than Moe A Seam.|coal|organic rich sedimentary rock|||N||05-FEB-23
Moitun Creek laterite|68592|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|24551|||||||||||N||17-JAN-23
Mole Hill Syenite|30348|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60507||VandenBerg A.H.M., Hendrickx M., Magart A. & Willman C.|23-JUL-96|||Benambra 1:100 000 sheet area. Intrudes the Teapot Creek Formation. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite-pyroxene syenite: grey to pale orange, medium to coarse grained, equigranular: A-type|intermediate intrusive rock|||Y|A-type|17-JAN-23
Moliagul Granodiorite|36976|Mount Moliagul granodiorite|12941|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Devonian||||intrusion|Lower Devonian|391|5|isotopic, K/Ar|||||No|23603||||||G350. Originally Mount Moliagul granodiorite (King, 1978). Variation of Moliagul Granite and Mount Moliagul Granodiorite. Superseded by Moliagul Granite in VandenBerg (2009) with no explanation. But appears again in GSV Surface Geology product in 2011?!|Granodiorite: slightly porphyritic, felsic, minor biotite, molybdenite-bearing quartz veins.|acid intrusive rock|||Y|I-type|17-JAN-23
Molineaux Sand|12040|Molineaux sand|12043|||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Holocene||||deposition|Upper Pleistocene|||||||SA|No|44660|42966|||||The Molineaux Sand (SA) and the Lowan Sand (Vic) are essentially the same unit - see RefID: 42966. The unit is called Molineaux-Lowan Sands in NSW. Lowan Sand is now abandoned (VandenBerg 2009) since Molineaux Sand has precedence.|Unconsolidated locally mobile yellow-grey pale orange well-sorted medium to fine frosted quartz sand. Aeolian dunes.|regolith|||N||17-JAN-23
Mollys Plain Granite|37761|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Middle Devonian||||intrusion|Late Silurian||||||||No|60542||||||GSV Code: G514. Age and lithology updated from GSV data (HG, Dec 2005)|Medium grained, I-type, biotite granite, with graphic intergrowth of quartz and perthitic K-feldspar|acid intrusive rock|||Y|I-type|17-JAN-23
Molyullah Ignimbrite|35117|Molyullah Rhyolite|12064|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Devonian||||eruption|Middle Devonian||||||200||No|22971||||||In the Wangaratta Area|Ignimbrite|acid volcanic rock|||N||17-JAN-23
Monbulk Volcanic Group|76938|Melbourne Volcanic Province|68405|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Miocene|22||isotopic, K/Ar|eruption|Miocene||||||||No|66244||||||Includes the mafic lavas between Cranbourne and Seville. Part of the Melbourne Province of Wellman (1974) and Melbourne Subprovince of Price et al. (2003). Has similar age to the nearby Greensborough Basalt; the two units may be the same.|Basaltic lava flows: basanite, olivine tholeiite, hawaiite.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Monegeetta Shale|27199|Mount William Group|13219|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Middle Cambrian||||deposition|Middle Cambrian||||||580|VIC|Yes|40761|42826|VandenBerg, A.H.M., Wilkinson, H.E.|||26-SEP-79|Defn card held [CEB Jul 2002]. Partial replacement of Mount William Group. See also Monegeetta Formation.|Shale|fine grained siliciclastic rock|||N||17-JAN-23
Monkey Creek Formation|25253|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Neogene||||deposition|Cenozoic|||||||VIC|No|34842|34842||||||||||N||17-JAN-23
Monkey Gully Sandstone Member|74888|||||Yes|Member, phase|Formal|Other new published name|Described|Kevington Creek Formation|9481|||Givetian||||deposition|Givetian||||||||No|64606|||||||Sandstone, pebbly sandstone, minor mudstone: alluvial deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Monoman Formation|12109|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Holocene||||deposition|Upper Pleistocene|||||||SA|No|34180|42966||||||Sand, clay, gravel, loam.||||N||17-JAN-23
Montys Hut Formation|26039|||||Yes|Formation, beds|Formal|Other new published name|Defined|Walhalla Group|19233|||Eifelian|372|2||deposition|Emsian|396|4||||3000|VIC|Yes|33601|33601|VandenBerg, A.H.M.|04-FEB-74||||Predominantly thin-bedded fine sandstones, siltstones and claystones with interbedded sandstones of medium thickness.|siliciclastic sedimentary rock|||N||17-JAN-23
Moomowroong Sand|22372|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Wangerrip Group|19406|||Paleocene||||deposition|Upper Cretaceous||||||45||No|43590||Tickell S.J.|11-DEC-91|||Tertiary sediments previously mapped as Dilwyn Formation, together with Wiridjil Gravel - lateral equivalents of Pebble Point Formation. Reduced to Member rank in 1994, then reinstated as Formation rank in 1996. Called Moomowroong Formation in 1999, then restored to original name.|Quartz sand, minor clay: micaceous, fine-grained, friable, generally massive; minor planar cross-bedding; minor gravel; marginal marine and beach deposits.|regolith|||N||17-JAN-23
Moomowroong Sand, Wiridjil Gravel, Pebble Point Formation|79964|Moomowroong Formation, Wiridjil Formation, Pebble Point Formation|37686|||Yes|Formation, beds|Informal|Variation of published name|Not recorded|Wangerrip Group|19406|||Paleocene||||deposition|Paleocene||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1 million geological map, National Maps Project.|Marginal marine glauconitic sand, fluvial sand and gravel|siliciclastic sedimentary rock|||N||17-JAN-23
Moonfish Volcanics|78486|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Paleocene||||eruption|Paleocene||||||||No|66181||||||Lithological identifier not used in figure, only in caption; an episode of volcanism in Gippsland Basin or hinterland, presented as Moonfish (Refid 66181).|||||N||17-JAN-23
Moonip Sandstone Member|34884|||||Yes|Member, phase|Formal|Other new published name|Described|Berrawan Conglomerate|34880|||Lower Devonian||||deposition|Ludlow||||||170||No|60503||||||Occurs at the top of Mount Tambo.|Contains planar laminated sandstones and mudstones which contain a few fossils including plant remains.|siliciclastic sedimentary rock|||N||17-JAN-23
Moonkan Ignimbrite|12244|Moonkan Sandstone|22377|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||600||No|41585||||||Murrindal area. Moonkan also reserved by Murray (1997) for use in QLD.|Composed of densely welded red quartz-rich ignimbrite.|acid volcanic rock|||N||17-JAN-23
Moonlight Head beds|25259|Moonlight Head Beds|12252|||Yes|Formation, beds|Informal|Variation of published name|Described||||||||||||||||||No|38734|||||||||||N||17-JAN-23
Moora Moora Sandstone|30441|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Difficult Subgroup|30438|||Pridoli||||deposition|Ludlow||||||500||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Quartz sandstone: pale, fine- to coarse-grained, + minor feldspar; laminated and x-laminated, thin to medium bedded; mud rip-up clasts, Skolithos horizons and ripple surfaces; minor interbeds; poorly outcropping.|siliciclastic sedimentary rock|||N||17-JAN-23
Mooral granodiorite|37876|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|24180||||||Briefly described.|Granodiorite, medium-grained, equigranular to slightly porphyritic, with plagioclase (albite, andesine and labradorite), orthoclase, quartz and biotite, accessory apatite, ilmenite, sphene and zircon.|acid intrusive rock|||Y||17-JAN-23
Mooralla Ignimbrite|30450|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||20||No|44929||Simpson C.|28-AUG-96|||Appears to be a single flow unit of very fine-grained, crystal-poor ignimbrite.|Feldspar ignimbrite: pinky brown with sparse crystals up to 2mm; very rare greenstone lithics up to 10mm; eutaxitic texture with  devitrified pumice and perlitic cracks; strongly attentuated fiamme foliation.|acid volcanic rock|||N||17-JAN-23
Mooree Granodiorite|37246|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|24012|50154|||||See also Mooree Tonalite. Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Pale grey-buff, muscovite-biotite granodiorite: massive to weakly foliated, medium grained equigranular to weakly alkali feldspar-phyric; accessory magnetite and epidote; uncommon biotite-rich mafic microgranitoid enclaves; magnetic.|acid intrusive rock|||Y||17-JAN-23
Moores Ford Andesite|22379|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||180||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Andesite, trachyte and basalt lava flows: massive grey to dark green-black porphyritic andesite lava is most common. Basalt lavas are grey and have olivine, generally show elongate silica-filled amygdales; minor ash and pyroclastic deposits.|intermediate volcanic rock|basic volcanic rock||N||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
Moornambool Metamorphic Complex|37578|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Late Cambrian|490||||Cambrian|505|||||||No|61187||||||Refers to the "belt of high grade metamorphic rocks which runs through Ararat, Stawell and Moyston...." as the Moornambool Metamorphic Complex (RefID: 60451). Hosts the Magdala gold deposit. Ages: 505-490Ma and 450-440Ma. Some evidence of  metamorphic overgrowths at 568.8 +/- 6.2 Ma9GSV Tech Record 2006/2) [could these be overgrowths on detrital zircons from source rocks, prior to formation of Moornambool Metamorphic Complex?]|Upper greenschist (biotite grade) to amphibolite grade. Characterised by schist, quartzite and amphibolite.|metamorphic rock|||N||11-SEP-23
Moornapa Sandstone|37524|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Cobbannah Group|32459|||Early Silurian||||deposition|Early Silurian||||||3050||No|61169||VandenBerg, A.H.M.|24-SEP-02|||Geological Survey of Victoria map code: Scm.|Sandstone, minor siltstone: sandstone quartzitic; thick, medium and thin-bedded; interbedded siltstone dark grey; deep-marine turbidite fan deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Moorngag Granite|12294|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|35111||||||A pluton first named on the Winton 1:50 000 geological sheet (O'Shea 1977); has precedence over its naming as Swanpool Granite in the Wangaratta 1:250 000 sheet (VandenBerg 1997).|Biotite granite, porphyritic with K-feldspar phenocrysts in a fine to medium grained groundmass of quartz, orthoclase, plagioclase, biotite and rare muscovite.|acid intrusive rock|||Y||17-JAN-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
Morang Granodiorite|12311|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|33604||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G275|Biotite granodiorite with rare hornblende: equigranular with a coarse porphyritic marginal phase.|acid intrusive rock|||Y||17-JAN-23
Morass Creek Basalt|12312|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pliocene||||eruption|Pliocene||||||260||No|29860||||||Described as the "Newer Basalts" and as Older Basalts (1998).  Volcanic rocks near Benambra which would be excluded from a proposed redefinition of the 'Newer Volcanics' into an igneous province named Western District Province (VandenBerg 2007).|Basalt lava: olivine basalt; blue-black to grey when fresh, dense to moderately vesicular, with well developed columnar jointing (60505).  Reversely magnetised, intensely magnetic (~1000 nT); very low total count, K, Th, U (60508)|basic volcanic rock|||N||17-JAN-23
Moray Street Gravels|12317|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yarra Delta Group|29186|||Lower Pleistocene||||deposition|Lower Pleistocene|||||10|30||No|30986|||||||Silty clay, sometimes fossiliferous; sands, minor gravel of the Yarra delta.|siliciclastic sedimentary rock|||N||17-JAN-23
Morewell Group|12324|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|35273|||||||||||N||17-JAN-23
Morilla Granite|35129|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Devonian||||||||No|22971||||||In the Wangaratta Area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G194|Biotite granite: coarse grained, slightly porphyritic in pink K-feldspar, plagioclase and quartz; accessory allanite, topaz, ilmenite, magnetite, sphene and monazite.|acid intrusive rock|||Y|I-type|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
Mornington Volcanic Group|76939|Mornington Volcanics (VIC)|37844|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lutetian||||eruption|Lutetian||||||||No|66244||||||This name replaces the Flinders Province of Wellman (1974); formerly the Flinders plateau lava of Keble (1950), who appears to have included his Mornington Lava Field in the Flinders Province. Holdgate et al. (2002) used the term Mornington Volcanics for the Eocene basaltic volcanics in the Port Phillip Basin. The unit covers much of the Mornington Peninsula, Phillip Island, part of French Island and some mainland around southern Westernport Bay.|Includes alkali olivine basalt, basanite, nepheline hawaiite and nepheline mugearite; minor shallow intrusives, pyroclastics and interbedded sediments.|basic volcanic rock|foid-bearing volcanic rock||N||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
Morris Peak pluton|69699|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Rileys Creek Suite|34904|Lower Devonian|||||Lower Devonian||||||||No|61169||||||Geological Survey of Victoria map code: G561.|Subsurface pluton.|igneous intrusive rock|||Y||17-JAN-23
Morton Conglomerate Member|25267|||||Yes|Member, phase|Formal|Other new published name|Described|Bacchus Marsh Formation|839|||Permian||||deposition|Permian||||||3||No|39865||||||See also Mortons Conglomerate Member.|Matrix-supported conglomerate, 1-5m thick with rounded/subrounded clasts up to 28cm across of granite, hornfels, sandstone, slate, quartz; patches of dolomite cement.|siliciclastic sedimentary rock|||N||17-JAN-23
Morwell Formation|12392|Morwell formation|12398|||Yes|Formation, beds|Formal|Variation of published name|Described|Latrobe Valley Group|10224|||Burdigalian|16.4|||deposition|Rupelian|33|||||200||No|31352|||||||Thick sequences of lignite (up to 160m) and clastics accumulated in peat swamps.|organic rich sedimentary rock|||N||17-JAN-23
Moscow Villa Granodiorite|34909|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||||||Type locality location given in Willman et al (1999) GSV Report 118. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite granodiorite: grey-green; medium-grained; porphyritic with phenocrysts of all main minerals; biotite has replaced hornblende, I-type|acid intrusive rock|||Y|I-type|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 Anderson Hornblende Porphyry|30688|Mount Anderson Diorite|77279|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|60503||VandenBerg, A.H.M.|23-DEC-96|||Benambra 1:100 000 sheet area. See also Mount Anderson Porphyry.|Hornblende porphyry|intermediate intrusive rock|||Y|I-type|17-JAN-23
Mount Angus Granodiorite|69711|Mount Angus Granite|12460|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61163||||||Geological Survey of Victoria map code: G160. Age and lithology updated from GSV data (HG, Dec 2005).|I-type granite; dioritic to monzogranitic, contains dark brown biotite, hornblende and traces of titanite|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Ararat Granite|34134|Mount Ararat Greenstone|12465|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian|401|3||||||No|22628|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Mount Baldhead Granodiorite|34848|Mount Baldhead Granite|12474|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Baldhead Igneous Complex|34911|Rileys Creek Suite|34904|Lower Devonian||||intrusion|Late Silurian||||||||No|22968||||||GSV Code: G139. Age and lithology updated from GSV data (HG, Dec 2005).|Pale grey to grey, coarse grained, I-type, biotite granodiorite; homogeneous, +/- hornblende. G139a: highly magnetic; G139b + G139c: moderately magnetic|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Beauty pluton|69411|||||Yes|Formation, beds|Informal|Resvd name published|Described|||||Lower Devonian|||||Lower Devonian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G144.  Elongate magnetic pluton within the Kiewa Shear Zone. See also Mount Beauty Pluton.|Intrusion.||||Y||17-JAN-23
Mount Black Granite|12524|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|42726||||||Small intrusive body, highly weathered to a granitic sandy soil containing white clay; holocrystalline rock, the principal minerals can usually be identified by the naked eye; equigranular and evenly distributed throughout the rock. Nonmagnetic, circular feature with a circular magnetic core.  Age and lithology updated from GSV data(HG, Dec 2005).  Intrudes the Puckapunyal Formation.  Similar to Strathbogie Granite (NAGAMBIE  sheet) and assumed to be similar age (RefID: 60599).|Biotite granite: nonmagnetic, medium grained, equigranular; composed of quartz, alkali feldspar, plagioclase and biotite; S-type.|acid intrusive rock|||Y|S-type|01-AUG-23
Mount Blomford Granite|12527|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Devonian||||intrusion|Silurian||||||||No|42726||||||GSV Code: G141.|Pink granite: coarse-grained; contains altered biotite, which was probably red-brown originally, and micaceous aggregates after cordierite.|acid intrusive rock|||Y||17-JAN-23
Mount Bruno Granite|27499|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G205|Biotite-muscovite granite with accessory garnet, evenly medium grained to porphyritic, pale grey.|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Buffalo Granite|12549|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lower Devonian||||intrusion|Lower Devonian|394|4|isotopic, K/Ar|||||No|30906||||||See also misspelling Buffalo Granite. GSV Code: G161. Age and lithology updated from GSV data (HG, Dec 2005).|Oxidised, medium to coarse-grained I-type granite, red-brown biotite and ilmenite, biotite rich and crosscut by aplite dykes|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Buller Granodiorite|12551|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Devonian||||intrusion|Devonian||||||||No|33602|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Mount Buller Suite|37579|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Middle Devonian||||intrusion|Middle Devonian|380|||||||No|23309||||||Consists of Mount Stirling Granodiorite, Bindaree Diorite and Mirimbah Granodiorite. See also Mount Buller suite.|Diorite, granodiorite.|intermediate intrusive rock|acid intrusive rock||Y|I-type|17-JAN-23
Mount Burrowa Volcanic Group|37868|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Devonian||||eruption|Devonian||||||||No|24145|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Mount Burt Granite|34842|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Ludlow||||intrusion|Wenlock||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005).|Biotite granite and tonalite: grey; medium-grained; equigranular; well foliated; contains some garnet and cordierite, S-type; nonmagnetic. Dyke phase interlayered with gneiss, layers 1-10 m thick.|acid intrusive rock|||Y|S-type|06-SEP-23
Mount Burt Granite - dyke phase 79687|79687|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Mount Burt Granite|34842|Ludlow||||intrusion|Wenlock||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G519i.|Interlayered Mount Burt Granite and gneiss, layers 1-10 m thick|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Mount Bute Granite|12560|Mount Bute Adamellite|30175|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Beckworth Suite|1351|Upper Devonian|358|4|isotopic, K/Ar|intrusion|Middle Devonian|370|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|42726||||||See also informal Mount Bute granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G308|Medium to coarse-grained seriate biotite granite, with minor hornblende.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Chief Andesite|40660|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Lickhole Volcanic Group|37572|||||||eruption|||||||||No|23309|||||||Andesite|intermediate volcanic rock|||N||17-JAN-23
Mount Clear Granodiorite|12585|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|29953|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-23
Mount Cole Granite|12588|Mount Cole Adamellite|32451|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Mount Cole Suite|28790|Middle Devonian|389|5||intrusion|Lower Devonian|392|5||||||No|23232||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G378.|Pale pink to grey, coarse grained, porphyritic, hornblende-biotite monzogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Cole Suite|28790|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Mount Cole Supersuite|31532|Upper Devonian|380|||intrusion|Lower Devonian|400|||||||No|41563||||||Includes the Loddon Vale and Lyndger plutons.  Part of the suite may have been renamed Coonooer Suite?|Granites with distinctive magnetic patterns.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Cole Supersuite|31532|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|42726||||||Name not used since 1991. Is it still needed?|Felsic intrusives|acid intrusive rock|||Y||17-JAN-23
Mount Dandenong Volcanic Group|40922|Mount Dandenong Volcanics|12615|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|61185|||||||Volcanics.|igneous volcanic rock|||N||17-JAN-23
Mount Dawson Subgroup|22409|||||Yes|Subgroup|Formal|Resvd name published|Fully described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area.|Vitric and feldspar-phyric red pumice ignimbrite; ash, volcaniclastic sandstone and breccia lenses.|acid volcanic rock|||N||17-JAN-23
Mount Difficult Subgroup|30438|Mount Difficult Sandstone|12635|||Yes|Subgroup|Formal|Variation of published name|Fully described|Grampians Group|7672|||Pridoli||||deposition|Ludlow||||||1300||No|61749||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. See also Mount Difficult Sub-Group.|Sandstone: pale, medium to coarse grained with sub-rounded vein quartz pebbles; laminated to trough cross-laminated, medium to thickly bedded; conglomerate: pale grey; polymictic; poorly sorted with open framework; micaceous siltstone and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Disappointment Granodiorite|12638|Mount Disappointment Granite|12637|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Barringo Suite|1188|Upper Devonian|370|||intrusion|Upper Devonian||||||||No|30867||||||See also the informal Mount Disappointment Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G221|Biotite granodiorite: medium-grained, equigranular; quartz, oligoclase, orthoclase, biotite; occasional xenoliths. Porphyritic phase: biotite granodiorite, with perthitic orthoclase phenocrysts in a quartz, oligoclase, orthoclase, biotite groundmass.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Disappointment Granodiorite - equigranular phase 79673|79673|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Mount Disappointment Granodiorite|12638|Upper Devonian|||||Upper Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G221.|Biotite granodiorite: medium grained, equigranular; consists of quartz, oligoclase, ortrhoclase, biotite and accessory zircon, ilmenite and apatite; occasional xenoliths.|acid intrusive rock|||Y||17-JAN-23
Mount Disappointment Granodiorite - porphyritic phase 79674|79674|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Mount Disappointment Granodiorite|12638|Upper Devonian|||||Upper Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G221a.|Biotite granodiorite, porphyritic with phenocrysts of perthitic orthoclase to 5 cm in a medium-grained groundmass of quartz, oligoclase, orthoclase and biotite with accessory apatite; common microgranitoid enclaves.|acid intrusive rock|||Y||17-JAN-23
Mount Dryden Volcanics|32175|Mount Dryden andesite|12655|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Late Cambrian||||eruption|Middle Cambrian||||||||No|23061||||||Actually spelt Mt Dryden Volcanics.|Calc-alkaline intermediate volcanics.|intermediate intrusive rock|||N||17-JAN-23
Mount Easton Shale|12668|Mount Easton Beds|26051|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Hirnantian|420||inferred, geological correlation|deformation|Darriwilian||||deposition||200||No|33601||||||Previously defined as Mount Easton Beds. Age: 419 Ma (Ar/Ar) from black shales no younger than Late Ordovician (Mt Easton Shale)|Black shale, thick-bedded, rarely with soft-sediment folding; minor sandstone, pale grey, thin to thick bedded, fine- to medium-grained; turbidites, micaceous; shale commonly with Middle-Late Ordovician graptolite faunas; deep marine hemipelagic deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Eccles Volcanics Complex|25276|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|35891||||||Probably should be Mount Eccles Volcanic Complex?|Volcanics|igneous volcanic rock|||N||17-JAN-23
Mount Egbert Granite|12676|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian|382|||intrusion|Lower Devonian|399|||||||No|42726||||||Brief description under Mount Egbert in King (1977, p23).Granite: reduced; moderately magnetic circular layer to 30 nT, elsewhere nonmagnetic; K, Th and U responses all high (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005). GSv Code: G337|Biotite granite: medium grained; S-type; nonmagnetic with subsurface weakly magnetic phase.|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Egerton Granodiorite|30232|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Mount Egerton Suite|12677|Upper Devonian||||intrusion|Upper Devonian|355|4|isotopic, K/Ar||||VIC|Yes|60585||Taylor D.|22-MAR-96|VandenBerg, F.|02-MAY-96|Ballarat 1:250 000 sheet area. First discussed under Mount Egerton Suite by White & Chappell (1988). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G280. See also Gong Gong Granite, Lal Lal Granite, Granodiorite.|Nonmagnetic, pale grey, fine- to coarse-grained; biotite granodiorite; reduced I-type; occasionally porphyritic in feldspar; mafic microgranular enclaves and mineral clots|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Egerton Suite|12677|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|42827||||||Includes only one intrusion now: the Mount Egerton Granodiorite. Is this Suite still needed post-2009?|Granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Eliza Granodiorite|12682|Mount Eliza granodiorite|12684|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian|363|2||||||No|71205||||||Written: Mt Eliza Granodiorite. Age updated from GSV data (HG, Dec 2005). GSV Code: G264|Biotite granodiorite: grey, equigranular; contains quartz, plagioclase, orthoclase, biotite, minor hornblende and accesory sphene, allanite and ilmenite; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Elizabeth Caldera Complex|34812|Mount Elizabeth Cauldron Complex|37581|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|60542|||||||Subaerial caldera volcanics: rhyodacitic ignimbrite, minor rhyolitic lava, lacustrine sediments; granite, granodiorite|acid volcanic rock|acid intrusive rock||Y||17-JAN-23
Mount Elizabeth Granodiorite|12687|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Mount Elizabeth Caldera Complex|34812|||Pragian||||intrusion|Lochkovian||||||||No|38367||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G126|Highly magnetic, green-grey, fine grained, I-type, hornblende-biotite granodiorite; with acicular to tabular hornblende crystals|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Elliot volcanics|41883|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|60451|||||||||||N||17-JAN-23
Mount Emu Granodiorite|69712|Mount Emu Granite|12694|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61174||||||See also Mount Emu Granite, Wangaratta area: Geological Survey of Victoria map code: G162. There seem to have been two granite bodies: one in the Ballarat 1:250k area (subsequently included in Tiac Granite: VandenBerg 2009) and one in the Wangaratta 1:250k area, subsequently renamed Mount Emu Granodiorite (G162). The Comments in RefID 66012 indicate the authors have confused the two; further, they give no reason for changing the (Ballarat) Mount Emu Granite to Granodiorite. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite-hornblende granite,granodiorite, tonalite: grey; coarse-grained; porphyritic, with phenocrysts of plagioclase, quartz, rare orthoclase; fine-grained near the margin.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Evelyn Rhyodacite|12701|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Dandenong Ranges Igneous Complex|37539|||Upper Devonian||||eruption|Upper Devonian||||||300||No|33598||||||Written: Mt Evelyn Rhyodacite|Rhyolite to rhyodacite ignimbrite: welded; phenocryst-rich with gradation from quartz rich to more abundant oligoclase and orthoclase, and plagioclase on top. Uppermost part is a thin band of volcanigenic sediments.|acid volcanic rock|||N||17-JAN-23
Mount Fraser basalt|12720|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41895|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Mount Ida Formation|27504|Mount Ida Beds|12815|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Murrindindi Supergroup|35522|||Lochkovian||||deposition|Pridoli||||||2100||No|43871||||||First mapped as Mount Ida Beds by Thomas (1937), who subdivided them into 4 faunal units: (1) interbedded mudstone, shales and conglomerates, (2) Pleurodictyum Beds, (3) Pentamerus Beds, and (4) early Spirifer Beds.  Includes: Stoddart, Dealba and Cornella Members - broadly corresponding to the divisions of Thomas (1937). Lateral equiv. to Humevale Formation. See also Mount Ida Sandstone.|Marginal marine sandstone, mudstone, conglomerate; quartz-rich.|siliciclastic sedimentary rock|||N||05-SEP-23
Mount Jack Granite|37763|Mount Jack|29711|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|23309||||||Reserved as Mount Jack. Lithology derived from the Mount Jack Granodiorite on the MURRUNGOWAR & part of CONRAN 1:50K map sheet (43314).  Unclear which nomenclature is current.  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G506|Foliated, medium grained biotite, muscovite, cordierite, garnet granodiorite with numerous schistose enclaves; S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Jim Volcanic Group|75952|Older Volcanics|14540|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Oligocene||||eruption|Priabonian||||||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||This new unit includes former Older Volcanic Group basalt flows on the Bogong High Plains, Dinner Plain area, Mt Hotham area and Dargo High Plains, all potentially part of one original continuous sheet of basalt. Plugs and dykes are also included in the group, which is largely coincident with the Bogong Subprovince of Price et al. (2003).|Alkali olivine basalt, basanite, picrobasalt, olivine nephelinite and phonolite, with minor interbedded lacustrine and fluvial sedimentary rocks including siltstone, shale, gravel, peat and coal|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Mount Kent Conglomerate|12867|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mansfield Group|28720|||Famennian||||deposition|Famennian||||||600||No|43461||||||Formerly of Avon River Group. Geological Survey of Victoria map code: Damk.|Conglomerate, pebbly sandstone, minor red mudstone: conglomerate massive to crudely bedded, well-sorted, generally pale, clasts rounded, mostly sandstone/quartzite; sandstone tabular, commonly with large-scale cross bedding and channeled bases.|siliciclastic sedimentary rock|||N||11-SEP-23
Mount Leinster Igneous Complex|26764|Mount Leinster igneous complex|12885|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Triassic|201|||intrusion|Triassic|209|||||||No|35278||||||The volcanics are grouped into the Teapot Creek Formation, with trachytes grouped into the Little Mount Tambo Trachyte Member (of the Teapot Creek Formation). See also Mount Leinster Complex.|Intrusive: granite, syenites, syenite porphyry, granite porphyry.|acid intrusive rock|||Y|A-type|17-JAN-23
Mount Lonarch Granite|22430|Mount Lonarch Granodiorite|32454|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Glenlogie Suite|7426|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||Cayley R.|21-JUN-93|||Defined in Cayley and McDonald (1995) as Mount Lonarch Adamellite. Requested by A. VandenBerg. BD as Lonarch Granite Chappell et al (1991).  See also Lonarch Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G371|Pale grey, fine to medium grained, hornblende-biotite monzogranite|acid intrusive rock|||Y|I-type|08-SEP-23
Mount Martha Granodiorite|12918|Mount Martha granodiorite|12921|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|71205||||||Written: Mt Martha Granodiorite. Age updated from GSV data (HG, Dec 2005). GSV Code: G263|Biotite granodiorite: grey, medium grained; consists of quartz, oligoclase, orthoclase (including microperthite), biotite and minor hornblende; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Martha Sand Bed|12919|Mount Martha Sand Beds|12920|||Yes|Bed|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|33604||||||Invalid name, Mount Martha Granodiorite has priority. Probably obsolete. Probably Tertiary.|Sand|sediment|||N||17-JAN-23
Mount McLeod Tonalite|30563|Mount McLeod Granite|26765|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Devonian||||intrusion|Early Silurian||||||||No|43206||||||Murrindal area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G65|Green to grey, medium grained, I-type, hornblende tonalite; massive|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Mittamatite Granite|12938|Mount Mittamatite granite|12939|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Late Silurian|418|32||||||No|70910||||||of the Boggy Plain Supersuite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G98. Formerly the only unit in the Mount Mittamatite Suite.|Pale pink, fine to medium grained, biotite rare-amphibole granite; minor fine grained porphyritic granite pods; slightly pervasively altered; highly magnetic|acid intrusive rock|||Y||17-JAN-23
Mount Napier Volcanic Complex|12957|Mount Napier volcanic complex|27844|||Yes|Group, Suite|Formal|Other new published name|Described|||||||||eruption|||||||||No|31006|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Mount Nelse Schist|12972|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|31800|||||||Schist|metamorphic rock|||N||17-JAN-23
Mount Norgate Granite|37764|South Point Granite|26903|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|23309||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G255|S-type granite|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Nugong Tonalite|34908|Mount Nugong Granite|12982|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Late Silurian|413|6||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G123 and G123a.|Grey, medium grained,  I-type biotite-hornblende tonalite; massive, equigranular, clinopyroxene rimmed by hornblende; occasional rimmed by hornblende; occasional rounded mafic igneous enclaves; granodiorite phase.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Nugong Tonalite - granodiorite phase 79663|79663|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Mount Nugong Tonalite|34908|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G123a.|Granodiorite: medium grained with hornblende and biotite, and rare cllinopyroxene; I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Phillipa Member|13026|Mount Phillipa Sandstone Member|13027|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Humevale Siltstone|28613|||Pridoli||||deposition|Ludlow||||||||No|43547||||||Considered by some as part of Dargile Fm - unit 3 of former Dargile Beds (Thomas 1937)) - equivalent to Hylands Member (McIvor Sandstone)?. In 2010 considered part of the Humevale Siltstone.|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Pilot Granite|35534|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23234||||||Written: Mt Pilot Granite|Granite|acid intrusive rock|||Y||17-JAN-23
Mount Pinnabar Suite|31480|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Probable misspelling of (Mount) Pinnibar? - both spellings are in The Gazetteer for Vic.|Granite|acid intrusive rock|||Y||17-JAN-23
Mount Puggaree Conglomerate Member|26770|||||Yes|Member, phase|Formal|Other new published name|Described|Combyingbar Formation|26487|||Upper Devonian||||deposition|Upper Devonian||||||40||No|42627|||||||Conglomerate, pebbly sandstone and coarse grained quartz sandstone, discontinuous unit up to 40m thick at base of formation.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Raymond Granite|13052|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Stated to be A-type (VIMP Report #26) but this is debatable because petrography/geochemistry indicates alteration, and it probably suffered alkali metasomatism, perhaps fenitisation. Age and lithology updated from GSV data (HG Dec 05). GSV Code: G43|Medium grained hornblende biotite granite, I-type, foliated|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Robertson Diorite|77888|Mount Robertson Quartzhypersthene Diorite|13070|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|68116|||||||Quartz-enstatite diorite: medium to fine-grained; mesocratic slightly greenish; andesine with occasionally zoned augite and enstatite; some alteration of enstatite to hornblende; interstitial cloudy orthoclase and quartz.|intermediate intrusive rock|||Y||17-JAN-23
Mount Samaria Volcanics|28811|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|70933|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Mount Selwyn Granite|13093|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G158|I-type granodiorite with some diorite and tonalite|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Singapore Granite|26771|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Promontory Suite|31627|Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G257|Cordierite-biotite granite: medium to coarse grained, creamy grey; contains red-brown biotite and garnet; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Sisters Porphyry|27848|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Triassic||||eruption|Triassic||||||||No|38145|||||||Porphyry|igneous rock|||U||17-JAN-23
Mount Stanley Granite|28812|Mount Stanley granite|13107|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Middle Devonian||||intrusion|Lower Devonian||||||||No|31713||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G183|Biotite granite: pinkish, medium grained, equigranular.|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Stavely Volcanic Complex|13108|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Middle Cambrian|490|||magmatic crystallisation|Middle Cambrian|511.3|2.9|isotopic, U/Pb-Pb/Pb ion probe||||VIC|Yes|38436|40887|Buckland G.L.|10-JUN-82|||To be included in the Miga Supersuite in 2015. Now (2016) considered to be younger than Glenthompson Sandstone. Max age from an unnamed granodiorite from drill hole SNDD002 that appears to be a fault slice within the Mount Stavely Volcanic Complex.|Greenish, massive andesite to dacite lava and sills, feldspar and clinopyroxene phenocrysts in fine grained groundmass, with amygdales; volcanic sediments including sandstone and conglomerate, pebbles of dacitic to andesitic lava in fine grained volcanic|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Stewart Granite|13111|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|45087|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Mount Stinton Granodiorite|37583|Mount Stinton Granite|13113|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G227|Biotite granodiorite: medium grained, sub-equigranular, abundant xenoliths.|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Stirling Granodiorite|13114|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Mount Buller Suite|37579|Upper Devonian|377|13||intrusion|Middle Devonian|385|14||||||No|70933||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G184|Hornblende granodiorite, diorite, gabbro: medium to coarse grained.|acid intrusive rock|basic intrusive rock||Y|I-type|17-JAN-23
Mount Tabby Formation|30551|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Little River Subgroup|22204|||Pragian||||deposition|Lochkovian||||||600||No|43206||||||Murrindal area.|Composed of various rock types including feldspar ignimbrite, basalt, and andesite lava, breccia and sediment lenses.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Tambo Group|26773|Mount Tambo Beds|13127|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Lower Devonian|416|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Late Silurian||||||5700||No|23710||||||Complex sedimentary and volcanic sequence. New mapping has led to three-fold subdivision: Berrawan Conglomerate, Blackfellows Flat Formation and Mount Shanahan Sandstone. Geological Province: Scrubby Creek Syncline. Age poorly constrained. Radiometric age from Vitric Ignimbrite Member, Blackfellows Flat Formation.|Conglomerate, sandstone, mudstone, ignimbrite; fluvial, marine, extrusive.|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Mount Taylor Granite|13129|Mount Taylor Porphyry|13130|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G132|Granite, large crystals of K-feldspar, plagioclase and quartz with lesser garnets and cordierites set in a finer grained matrix.|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Timbertop Conglomerate|26774|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mansfield Group|28720|||Carboniferous||||deposition|Carboniferous||||||||No|33607||||||See also Mount Kent Conglomerate, Mansfield Basin.|Conglomerate and sandstone|siliciclastic sedimentary 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 Walterson Conglomerate Member|34876|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Cowombat Siltstone|25864|||Silurian||||deposition|Silurian||||||350||No|22968|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Warrick Rhyolite|69709|Mount Warrick Mylonite|73475|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tolmie Igneous Complex|26950|||Upper Devonian||||eruption|Upper Devonian||||||||No|61174||||||Geological Survey of Victoria map code: Dtw.|Rhyolitic lava and porphyry: mostly very glassy, massive to flow-banded, commonly perlitic; rare volcaniclastic sandstone and conglomerate; cream to pale brown colours.|acid volcanic rock|||N||17-JAN-23
Mount Wellington Rhyolite|13208|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||eruption|||||||||No|40761||||||See also Wellington Rhyolite.|Rhyolite|acid volcanic rock|||N||17-JAN-23
Mount William Metabasalt|13220|Mount William beds|13223|||Yes|Formation, beds|Formal|Variation of published name|Defined|Heathcote Volcanic Group|68647|||Early Cambrian||||eruption|Early Cambrian||||||2500|VIC|No|40761|42826|||||Formerly Mount William beds, and an unnamed section of the former Heathcote Greenstone. Partial equivalent to the former Mount William Group. To be replaced by Mount William Volcanics [GSVSept96]- but the metabasalt nomenclature continues to be used by GSV (PP 14/01/09). In GSV Report 129 (2009) is said to have map symbol  -Chm and includes unnamed bands of chert (-Chms) and volcaniclastic sandstone (-Chmv). See also Mount William Volcanics.|Dark green basalt, fine-gr.+ phenocrysts of plagioclase and clinopyroxene; rare pillow structures; dolerite sills, med.-coarse-grained, equigranular, plag/clinopyrox.phenocrysts; columnar jointing in some; interflow pyritic shale, etc Jasper also present.|metamorphosed basic igneous rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Wills Granite|13225|Mount Wills granite|13227|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Mount Wills Suite|31663|Lower Devonian|415|15|isotopic, K/Ar|intrusion|Early Silurian|415|15|isotopic, K/Ar|||||No|35278||||||Formerly Mt Wills Muscovite Granite (Crohn 1950) and Mount Wills Leucoadamellite (Fagan 1979). Intruded Omeo Metamorphic Complex and Cobungra Granite. GSV Code: G111.  Age updated from GSV data (HG, Dec 2005). See also Mount Willis|Coarse-grained granite; consists of orthoclase, quartz, plagioclase, abundant deformed muscovite, biotite and tourmaline|acid intrusive rock|||Y|S-type|17-JAN-23
Mount Wills Suite|31663|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Silurian||||intrusion|Silurian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Mountain Chief Andesite|22456|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Lickhole Volcanic Group|37572|||Cambrian||||eruption|Cambrian||||||||No|23309||VandenBerg, A.H.M.|30-JUN-94|||Misspelt when reserved.|Andesitic lava and breccia, volcaniclastic mafic boninite, minor hyaloclastite.|intermediate volcanic rock|||N||17-JAN-23
Mountain Maid Granite|34844|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock|425|9||intrusion|Llandovery|425|9||||||No|22968||||||Pluton on OMEO.  Age and lithology updated from GSV data (HG, Dec 2005).|S-type; Biotite granite: pale grey; fine-grained; equigranular; massive|acid intrusive rock|||Y||05-SEP-23
Moutajup|79011|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Cambrian|||||Cambrian||||||||No|||Cayley, R. (GSV)|15-JAN-15|||Hamilton map sheet area 7322. Name reserved for igneous rock units within the Boonahwah belt, a buried belt of igneous rocks near Dunkeld. Where to be published = 2015, in a GSV technical report published to accompany maps and other data published from the Willaura Copper project.|||||Y||17-JAN-23
Mowamba Porphyries|30683|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian|413|6|isotopic, U/Pb-Pb/Pb ion probe||Lower Devonian|413|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|60503||VandenBerg A.H., Hendrickx M.|16-JUL-96|||Benambra 1:100 000 sheet area. Collective name for the 3 small plutons adjacent to Wombat Creek Graben, including the Mowamba Porphyry. Age and lithology updated from GSV data (HG, Dec 2005)|Quartz-feldspar porphyry: green; medium-grained; strong epidote, sericite and chlorite alteration on relict hornblende and feldspar.|acid intrusive rock|||Y|I-type|01-AUG-23
Mowamba Porphyries, Silver Flat Porphyries and unnamed intrusions|37670|||||Yes|Subgroup|Informal|Unknown or process pending|Not recorded|||||Devonian||||intrusion|Devonian||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Mowamba Porphyries, Silver Flat Porphyries and unnamed intrusions.|Intrusive quartz-feldspar porphyry, including ring dykes|acid intrusive 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
Moyne Alluvium|13290|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Bridgewater Formation|2543|||Quaternary||||deposition|Quaternary||||||||No|34993||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Alluvium|regolith|||N||17-JAN-23
Mudgee Granite|35599|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Carboniferous||||intrusion|Carboniferous||||||||No|23275||||||Building stone name for Mudgee River Granite, NSW?|Granite|acid intrusive rock|||Y||17-JAN-23
Mullum Mullum Sandstone Member|23845|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Yan Yean Formation|20800|||Wenlock||||deposition|Wenlock||||||||No|38787||M.Garratt|26-NOV-76|||M 83/23660 although NLR Aug82.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Mundawandra Granite|13426|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Mungobabba Tonalite|34835|Tongio Gap Granite|18339|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Rileys Creek Suite|34904|Lower Devonian|408|16||intrusion|Late Silurian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G143|Grey, medium grained, biotite tonalite; I-type; massive; rare small dark enclaves; moderately to highly magnetic (on northern margin), elevated magnetic intensity directly north of pluton|acid intrusive rock|||Y|I-type|17-JAN-23
Murderers Hill Siltstone|22481|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Jordan River Group|9028|||Late Silurian||||deposition|Late Silurian||||||||No|44187||VandenBerg A.H.M., Willman C. & Hendrickx M.|23-JUN-94|||Warburton 1:250 000 sheet area.|Brown, purple and green siltstone, thinly laminated; pale sandstone, thin bedded, fine-grained, quartzose and lithic; deep marine hemipelagic and turbidite deposits.|siliciclastic sedimentary rock|||N||07-SEP-23
Murmungee Granodiorite|13522|Murmungee Granite|26786|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian|376|4|isotopic|||||No|41563||||||Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende-biotite granodiorite: grey, medium grained, equigranular with accessory magnetite, sphene, allanite and pyroxene; marginal leucocratic granite; I-type; highly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Murmungee Suite|31654|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Murnungin pluton|83436|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G649. Distinctly magnetically layered, with alternating nonmagnetic and magnetic (to 80 nT) layers; a 10 micrometres/second/second gravity high in the northeast, but a 50 micrometres/second/second low in the south.|igneous intrusive rock.|igneous intrusive rock|||Y||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
Murraduc Basalt|73494|Older Basalt|35551|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Bellarine Volcanic Group|72699|||Miocene|||inferred, overlying unit|eruption|Miocene|22.5|.5|isotopic, K/Ar||||VIC|No|65715||VandenBerg, F. (GSV)|19-JUL-07|VandenBerg, F.|19-JUL-07|Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p14, 15. Bellarine Volcanic Group has yielded a K/Ar age of 22.5 +/- 0.5 Ma from basalt (?where does this data come from?)[Murraduc Basalt?], and a tuff belonging to it [Clifton Springs Tuff?] is overlain by Miocene marl.|Olivine basalt.|basic volcanic rock|||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
Murray Hill Sandstone|30432|||||Yes|Formation, beds|Formal|Resvd name published|Described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||300||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Sandstone pale yellow, pebbly quartzo-feldspathic; fine- to coarse-grained; laminated, x -laminated and trough x-laminated, medium to thickly bedded; forms prominent outcrops.|siliciclastic sedimentary rock|||N||17-JAN-23
Murrindal Limestone|26788|Shanahan Limestone""|16796|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Buchan Group|2754|||Emsian||||deposition|Emsian||||||290||No|43532||||||Previously informally called "Shanahan Limestone". Stated to contain the McLarty Member by Basden (2003) - "Early Devonian (Emsian) Vertebrate Microremains from the Buchan Group, Victoria.....".  See also Murrindal limestone.|Marine: massive, pale grey recrystallised limestone (well bedded and massive); subordinate mudstones.|carbonate sedimentary rock|||N||11-SEP-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
Murrungowar Granite|26789|Murrungowar granite|13574|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Murrungowar Suite|31631|Wenlock||||intrusion|Llandovery||||||||No|33238||||||Intrusive within the Kuark Metamorphic Complex. A-type granite. GSV G39. May also intrude Tarlton pluton. Age and lithology updated from GSV data (HG, Dec 2005). Replaced by Murrungowar Granodiorite in the 1990s, but the Granite is preferred again now (advice from GSV OCT-2010). Age: K/Ar biotite 387+/-8 Ma (Bowen, 1975), but foliations are parallel to metamorphic fabrics considered to be Early Silurian (Simpson, 1997) (from Granodiorite)|Biotite-muscovite granite: coarse-grained porphyritic; foliated; contains numerous aligned orthoclase phenocrysts and mafic enclaves|acid intrusive rock|||Y|A-type|05-SEP-23
Murrungowar Suite|31631|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Murtagh Creek Ignimbrite|37584|Murtagh Creek Rhyolite|28122|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Dartella Volcanic Group|23535|||Lower Devonian||||eruption|Lower Devonian||||||600||No|60503||||||See also Murtagh Creek Rhyolite (defined). Ignimbrite: weakly and moderately magnetic flows (5-50 nT); low to moderate K, low total count, Th, U (60508)|Ignimbrite: minor bedrock-lithic breccia, lahar deposits: rhyolitic red quartz ignimbrite with large quartz and feldspar ignimbrite and cognate porphyry pyroclasts, with very abundant shale lithic fragments in the west. (60505)|acid volcanic rock|||N||17-JAN-23
Mussel Formation|13610|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Wangerrip Group|19406|||Eocene||||deposition|Thanetian||||||||No|41185||||||Same as Mussel Roe nomenclature?|||||N||17-JAN-23
Myaring beds|13643|Myaring Beds|25317|||Yes|Formation, beds|Informal|Unknown or process pending|Described||||||||||||||||||No|31624|||||||||||N||17-JAN-23
Mystic Park Formation|74868|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Renmark Group|16036|||Miocene||||deposition|Oligocene||||||||No|65719||Goldie-Divko, L. (GSV)|06-NOV-08|||Upper part of Renmark Group. Kerang 1:100k sheet area. To be published in GSV report, AJES.|Carbonaceous and micaceous very fine-grained to coarse-grained sands and fine-grained silty and clayey sands (some glauconitic and containing marine invertebrate shell fragments)|siliciclastic 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
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
Nampoo Member|73909|||||Yes|Member, phase|Formal|Resvd name published|Defined|Blanchetown Clay|1918|||Lower Pleistocene|1.4|||deposition|Lower Pleistocene|1.6|||||3||No|64961|64961|McLaren, S. (UniMelb)|20-NOV-07||| [For refID: 64961]. A very distinctive unit of Blanchetown Clay, overlying the main clay sequence above the basal Chowilla Sand.|Comprises a basal pure quartz silt, often laminated, becoming increasingly clayey higher up the sequence, with clay interbeds and discontinuous well-sorted sand.|sediment|||N||17-JAN-23
Nanapundah Tuff|24418|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Stavely Volcanic Complex|13108|||Late Cambrian||||deposition|Late Cambrian||||||800|VIC|Yes|38436|40887|G.L.Buckland|08-FEB-82||||Andesitic crystal lithic volcanic sandstone: massive, variably sorted, partly laminated.|siliciclastic sedimentary rock|intermediate volcanic rock||N||17-JAN-23
Nangeela Formation|41179|||||Yes|Formation, beds|Formal|Other new published name|Defined|Moralana Supergroup|26314|||Middle Cambrian||||deposition|Early Cambrian||||||||No|50160|50154||||||Black graphitic slate with pyrite; black dolomitic slate with pyrite; grey to green chlorite-sericite slate and metasiltstone; thin greywacke interbeds|metasedimentary siliciclastic rock|||N||17-JAN-23
Nangkita Granite|41188|Nangkita Adamellite|37259|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Middle Ordovician||||intrusion|Middle Cambrian||||||||No|50160|50154|||||"Adamellite" of Kemp et al. (2002) has been replaced with "Granite" by Morand et al. (2003) to be in line with modern terminology (article 50154). Supersedes Chetwynd River Granodiorite. Age and lithology updated from GSV data (HGDec05). GSV Code: G408|S-type muscovite leucogranite: massive, white, medium to coarse grained, porphyritic with microcline megacrysts; minor biotite and locally abundant garnet; locally abundant enclaves of schist and gneiss accompanied by biotite schlieren and selvedges|acid intrusive rock|||Y|S-type|17-JAN-23
Nar Nar Goon basalt|13839|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|33462|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Nargoon Group|37331|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Late Cambrian||||deposition|Ediacaran|522|8||||||No|23309|50154|||||In the Grampians- Stavely Zone, Western Victoria, between Yarramyljup and Escondida Faults. Note: constituent unit Glenthomson Sandstone is now (2016) believed to be older than the Mount Stavely Volcanic Complex, so the status and relationships of this group are uncertain.|Marine turbidites: cleaved quartz wacke and slate; thin bedded.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||06-SEP-23
Nargoon Group - amphibolite|73469|||||Yes|Formation, beds|Informal|Unnamed published|Unpublished|Nargoon Group|37331|||Cambrian|||||Cambrian||||||||No|||Liu, S.|29-JUN-07|||Informal unit used in the 1:1million surface geology of Australia - Victoria 3rd edition|Amphibolite, metaquartz diorite, metamafic volcaniclastic sandstone breccia: magnetic units|metamorphosed basic igneous rock|||N||17-JAN-23
Nariel Granite|26799|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|42726||||||Briefly described. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G94|Muscovite-biotite granite: leuco- to mesocratic, light yellow-brown, equigranular to weakly porphyritic in feldspar; medium-grained; massive; S-type; nonmagnetic.|acid intrusive rock|||Y|S-type|17-JAN-23
Narimba Sequence|77120|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|Bass Megasequence|41024|||Early Eocene|||||Thanetian||||||||No|61553||||||Reference section is in Narimba-1 well. High rate of sedimentation deposited a >700 m syn-tectonic succession in aggradational fluvio-deltaic to floodplain environments.|Sandstones, shales, thin coal beds.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Narooma Accretionary Complex|37585|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Ordovician||||deposition|Cambrian||||||||No|23309||||||Min and max ages determined from constituents ages.|Interbedded sandstone and mudstone, as well as disrupted sandstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Narracan Group|13892|Narracan series|13893|||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|71202|||||||||||N||17-JAN-23
Narraport pluton|83413|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||Used in RefID 73496 Moore (2005). G607. Nonmagnetic inner phase surrounded by magnetic phases with responses to 100 nT; inner phase has gravity response about 30 micrometres/second/second less than outer phases.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Narrapumelap Road Dacite Member|13900|Narrapumelap Road Rhyolite Member|24422|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Towanway Tuff|24532|||Cambrian|495|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Cambrian|503.2|2.3||||100|VIC|No|40172|40887||||||Dacitic to rhyolitic lava.|acid volcanic rock|||N||06-SEP-23
Narrawaturk Marl|13904|Narrawaturk Formation|13902|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Nirranda Group|14185|||Rupelian||||deposition|Bartonian||||||131||No|71437||||||Of Bock & Glenie (1965). Incorporates Browns Creek Clay, Castle Cove Limestone and Glen Aire Clay - local names best regarded as members.  (see GSV report 103, 1995). In the Gambier Basin, Otway Basin. This unit has been split into upper and lower parts in the Port Campbell Embayment area.|Calcareous mudstone, minor thin calcarenite beds: locally carbonaceous and burrowed, locally abundant glauconite pellets and polished quartz sand, foraminifers, bryozoans, brachiopods and molluscs; open marine (below storm wave base) deposits.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Narrawaturk Marl, Jan Juc Formation|40442|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Nirranda Group|14185|||Oligocene||||deposition|Oligocene||||||||No|||||||Informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Narrawaturk Marl and Jan Juc Formation of the Nirranda Group.|Marine marl|carbonate sedimentary rock|||N||17-JAN-23
Narrawaturk Marl, Lower|80022|Narrawaturk Marl|13904|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Nirranda Group|14185|||Priabonian|||||Bartonian||||||||No|69297||||||Port Campbell Embayment, Otway Basin.||carbonate sedimentary rock|||N||17-JAN-23
Narrawaturk Marl, Upper|80023|Narrawaturk Marl|13904|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Rupelian|||||Rupelian||||||||No|69297||||||Port Campbell Embayment, Otway Basin.|||||N||17-JAN-23
Narree Worran Dyke Swarm|13908|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42827|||||||Dyke swarm|igneous rock|||Y||17-JAN-23
Narrewillock Granite|41778|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Coonooer Suite|37536|Lower Devonian||||intrusion|Lower Devonian||||||||No|60491||||||G621|Possibly granite; S-type, reduced; nonmagnetic; subsurface only (article: 60462).|acid intrusive rock|||Y||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
Native Cat Volcaniclastic Member|13933|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Thorkidaan Volcanics|18080|||Ludlow||||eruption|Ludlow||||||||No|41585|||||||Consists of thick beds of coarse-grained, poorly sorted juvenile pumice and subordinate rhyolite lava fragments, alternating with thinner beds of siliceous, planar laminated vitric ash.|acid volcanic rock|||N||17-JAN-23
Native Dog Granite|79441|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mississippian||||intrusion|Upper Devonian||||||||No|70629|||||||Granite, granodiorite and tonalite. A reduced I-type transitional (post-orogenic) pluton showing extended fractionation and magma mixing, crosscut by dacite dykes.|acid intrusive rock|||Y|I-type|17-JAN-23
Natte Yallock Granite|25332|Mount Hooghly Granodiorite|22424|||Yes|Formation, beds|Formal|Other new published name|Fully described|||Mount Cole Suite|28790|Middle Devonian||||intrusion|Lower Devonian|398|5|isotopic, Rb/Sr|||||No|42726||||||Called Natte Yallock pluton by King (1966). See also Mount Hooghly (Natte Yallock) Granodiorite, and the superseded Mount Hooghly Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G354|Magnetic oxidised, medium grained, I-type, biotite-hornblende tonalite; equigranular; includes enclave-rich hornblende biotite orthopyroxene quartz diorite|acid intrusive rock|||Y|I-type|17-JAN-23
Navarre Granite|28855|Navarre Granodiorite|35503|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Lower Devonian|401|4|isotopic, K/Ar|||||No|42726||||||Briefly described. Subsurface unit. Age and lithology updated from GSV data (HG, Dec 2005)|Leucocratic granodiorite.|acid intrusive rock|||Y||17-JAN-23
Neerim Volcanic Group|76940|Neerim basalt|13961|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Burdigalian||||eruption|Oligocene|25||isotopic, K/Ar|||||No|66244||||||New name for the Neerim Volcanic Province of Wellman (1974) and the Neerim Subprovince of Price et al. (2003), excluding the Fumina Basalt. Crops out in the Drouin - Neerim area; boundaries with Thorpdale Volcanic Group somewhat arbitrary and Fumina Basalt not well defined (under Haunted Hills Formation).|Olivine tholeiite, alkali olivine basalt and K-hawaiite; minor nephelinite, basanite and nepheline hawaiite.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Nekeeya Gravel|30444|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Mesozoic||||deposition|Mesozoic||||||25||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Colluvium: polymictic conglomerate, poorly sorted and unconsolidated, variably rounded clasts of granodiorite and sandstone up to boulder size in a sand matrix; auriferous at base.|regolith|||N||17-JAN-23
Nelson Bay Formation|13978|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Lower Pleistocene|1|||deposition|Lower Pleistocene|1.4|||||30||No|44221||||||Not to be confused with Nelson Formation (Oligocene).  Initially included in the now ?obsolete Follett Group. Age from Geology of Victoria, 2003.|Subhorizontal biocalcarenite, lagoonal sediments and paleosols|carbonate sedimentary rock|||N||17-JAN-23
Nelson Creek Granite|37521|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61174||Vandenberg, A.H.M.|20-SEP-02|||Used on the BUFFALO 1:100 000 sheet and report and associated 1:50 000 sheets. Geological Survey of Victoria map code: G191. Age and lithology updated from GSV data (HG, Dec 2005).|Granite: equigranular, interlocking grains of quartz and rosettes of hydrothermal muscovite; feldspar replaced by masses of sericite and hematite; biotite by chlorite and sericite|acid intrusive rock|||Y||05-SEP-23
Neoproterozoic mafic volcanics 76665|76665|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ediacaran|550|||eruption|Ediacaran|630|||||||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
Neoproterozoic rocks 79415|79415|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Neoproterozoic, undivided. Subsurface unit interpreted by Songfa Liu for the Neoproterozoic solid geology of Australia.|Unknown.|unknown|||U||17-JAN-23
New Country Sandstone|34702|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Bendoc Group|1474|||Hirnantian|||inferred|deposition|Katian|||inferred|||||No|22876||||||Formerly the basal unit of the Yalmy Group. Now in Bendoc Group because of its black shale and siltstone. Geological Survey of Victoria map code: Obn.  Represented by Willandra Sandstone in NSW. Also stated to be Bolindian in age (Late Ordovician Australian equivalents). Proposed to be reassigned from the Bendoc Group to Margules Group in 2018 poster. Unknown if GSV have proceeded with this change.|Sandstone; dark to mid grey, quartzitic to micaceous, turbiditic, and interbedded black to grey siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Newer Volcanic Group|38291|Newer Volcanics|14099|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Holocene|.005|||eruption|Miocene|8.5|||||100||No|24384|64612|||||It is now proposed to discontinue use of Older and Newer Volcanics nomenclature, and to adopt the concept of igneous provinces following Price et al (2003); modifications suggested (VandenBerg 2007) - see Newer Volcanics. All surficial volcanics are now included in Newer Volcanic Group, except Tower Hill Tuff and Piton Scoria Member (VandenBerg 2009). Volcanic eruption centres mostly in the 4.5 Ma - 5000 BP range (Boyce et al., 2014 AJES 61(5), p735.|Cinder cones - scoria, minor ash and agglutinates; Lava flows - tholeiitic to minor alkaline and basanitic lavas.|basic volcanic rock|||N||17-JAN-23
Newham Diatomite|74848|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pliocene|||||Miocene||||||11.5|VIC|No|64619|||||||Off-white diatomite, moderately consolidated, cross-bedded; minor tuff.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Nigretta Ignimbrite|30448|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian|410|3||||85||No|44929|50154|Simpson C.|28-AUG-96||||Quartz feldspar ignimbrite: pinkish-grey with abundant lithics of quartz sandstone and metavolcanics at base, fiamme occasionally attenuated to rheomorphic flow banding.|acid volcanic rock|||N||17-JAN-23
Nine Mile Suite|41779|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|60491||||||Also includes the Cannon Hills and Marmal plutons.|Granite, tonalite.|acid intrusive rock|||Y||17-JAN-23
Ninnie Subgroup|36861|Ninnie|29828|||Yes|Subgroup|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Lower Devonian||||eruption|Lower Devonian||||||||No|60542|||||||Subaerial feldspar ignimbrite, submarine mass-flow deposits|acid volcanic rock|||N||17-JAN-23
Ninyuenook pluton|83433|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||G611. Nonmagnetic; possibly a slight gravity low.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Nirranda Group|14185|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Rupelian|29|||deposition|Lutetian|45||||||VIC|No|71437|31036|||||Introduced by Bock & Glenie (1965). Once interpeted as Nirranda Sub-group of the Heytesbury Gp due to difficulties in distinguishing one from the other in western part of basin; also known as Hanson Plain Sand in Heytesbury Group by some authors (see GSV 103). In Gambier Basin in SA also.|Fine-grained marginal marine/littoral sediments; marl.|carbonate sedimentary rock|||N||17-JAN-23
Nirranda Supersequence|73299|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||lower Proteacidites tuberculatus|||biozone|deposition|Nothofagidites asperus|||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||The Nirranda Supersequence represents a condensed section that developed during flooding of the margin.|Calcareous claystone overlain by marls, calcarenite and calcilutite; shaly limestone overlain by calcarenite and calcilutite; quartz sandstone overlain by silty mudstone, and limestone.|sedimentary rock||passive margin|N||17-JAN-23
Nobby Road Sandstone|31415|Nobby Road Formation|34850|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Barmouth Group|32559|||Pridoli||||deposition|Late Silurian||||||500||No|22968||Willman C.E.|22-JUL-97|||Omeo 1:100 000 sheet area (8423). Quartz- and feldspathic quartz sandstone, siltstone.|Sandstone, siltstone: sandstone quartzose to arkosic, medium to fine-grained; minor feldspathic granule conglomerate.|siliciclastic sedimentary rock|||N||06-SEP-23
Noora Sand|14226|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37661|||||||Sand|sediment|||N||17-JAN-23
Noorinbee Granodiorite|29296|Noorinbee Granite|14227|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Tonghi Suite|18336|Lower Devonian||||intrusion|Lower Devonian||||||||No|30574||||||Age and lithology updated from GSV data (HG, Dec 2005).  See also the informal Noorinbee Granite. GSV Code: G15|Moderately magnetic, dark greenish grey, coarse grained, weakly to strongly foliated, biotite-hornblende granodiorite with abundant mafic inclusions|acid intrusive rock|||Y|I-type|17-JAN-23
Normanville Group|14255|||||Yes|Group, Suite|Formal|Other new published name|Described|Moralana Supergroup|26314|||Early Cambrian|515|||deposition|Early Cambrian|526|4|isotopic, U/Pb|||1000||No|30381||||||In the Kanmantoo Trough (Adelaide Geosyncline). Also in Stansbury Basin.|Marine shelf to basinal carbonate, minor basal sandstone. Includes acid to basic volcanics near the Murray River. Limestone; sandstone; shale; volcanics|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
North East Metamorphic Complex|14269|Northeast Metamorphic Complex|14291|||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|38367|||||||||||N||17-JAN-23
Norton Gully Sandstone|14304|Norton Gully Formation|14303|||Yes|Formation, beds|Formal|Variation of published name|Defined|Walhalla Group|19233|||Emsian|||inferred|deposition|Emsian||||magmatic crystallisation||1800|VIC|No|43461|33601|||||Formerly called 'Upper Sandstone Beds' (Thomas 1947), then Norton's Creek Sandstone (Thomas 1953) - see 61185. Age date from tuff within the unit.|Moderate to deep water deposit: turbiditic sandstone; thinly to thickly bedded, fine to coarse grained massive sandstone, minor pebbly sandstone and conglomerate. Includes tuff.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Norton Gully Sandstone, Yeringberg Formation|79963|Norton Gully Formation, Yeringberg Formation|37672|||Yes|Subgroup|Informal|Variation of published name|Not recorded|Walhalla Group|19233|||Devonian||||deposition|Devonian||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project.|Marine turbiditic sandstone, siltstone, mudstone; minor conglomerate, diamictite|siliciclastic sedimentary rock|||N||17-JAN-23
Norval Regolith|83453|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Eocene|||inferred, overlying unit||Eocene|||inferred, underlying unit|||||No|73505||||||Developed at the Mologa weathering surface overlying the Olney Formation, and overlain by the Geera Clay.|||||N||17-JAN-23
Notostrea Greensand|28876|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Mepunga Formation|11654|||||||deposition|||||||||No|41626|||||||Greensand||||N||17-JAN-23
Nowa Nowa Conglomerate|37586|Nowa Nowa Formation|29704|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Ninnie Subgroup|36861|||Pragian||||eruption|Pragian||||||150||No|60542|||||||Volcanolithic conglomerate and sandstone; high proportion of grains and clasts of lava, mostly rhyolite, and some andesite.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Nowyeo Granite|69412|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Early Silurian||||intrusion|Early Silurian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G165. Age updated from GSV data (HG, Dec 2005).  Intrudes the Omeo Metamorphic Complex sillimanite gneiss and Cobungra Granite.|Muscovite-biotite leucogranite: variable from fine grained and equigranular to coarse feldspar-phyric; alteration common; metamorphosed; weak foliation; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Nuggetty Reef Granite|36808|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Devonian|368|3|isotopic, U/Pb|intrusion|Devonian|369|2||||||No|23810||||||Felsic I-type. Age: 369+/-2Ma (SHRIMP U-Pb age).|Felsic I-Type, granite.|acid intrusive rock|||Y|I-type|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
Nullawarre Greensand|14374|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Sherbrook Group|16826|||Campanian||||deposition|Santonian||||||130||No|71437||||||Previously Nullawarre Greensand Member (Bock & Glenie, 1965) as a member of Paaratte Formation; elevated to formation status by Williamson et al (1987). See also Nullawarre Formation.|Light greenish-grey, fine- to coarse-gr. sandstone.|siliciclastic sedimentary rock|||N||16-OCT-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
Nunnett Plains Volcanic Group|77103|Nunnet Plains Volcanic Group|75953|||Yes|Group, Suite|Reserved|Variation of published name|Briefly described|||||Rupelian||||eruption|Lutetian||||||||No|68116||Morand, V.J. (GSV)|27-AUG-12|||This name applies to former Older Volcanic Group basalts on the Nunniong Plateau, The Springs plateau, Bald Hills and south to Buchan South. It was included as part of the Gelantipy Subprovince by Price et al. (2003). Published in: Morand, V.J. 2011. Stratigraphic name changes in Eastern Victoria, Seamless Geology Project. GeoScience Victoria Technical Record 2011/1 as Nunnet Plains Volcanic Group.|Basalt flows and minor dykes: quartz tholeiitic basalt, olivine tholeiitic basalt, nepheline basanite, hawaiite.|basic volcanic rock|||N||17-JAN-23
Nunniong Granodiorite|27525|Nunniong Granite|14406|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bullenbalong Supersuite|2897|Lower Devonian|417|2|isotopic, K/Ar|intrusion|Late Silurian|430|13||||||No|38145||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G125|Grey, medium grained, S-type, biotite-muscovite-cordierite granodiorite; well foliated with abundant gneissic enclaves in the north, west and southwest, generally massive in the southeast with fewer gneissic enclaves.|acid intrusive rock|||Y|S-type|05-SEP-23
Nuntin Clay Member|14407|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Boisdale Formation|27716|||Pleistocene||||deposition|Pliocene||||||||No|35273|||||||Clay|regolith|||N||17-JAN-23
Nyerimalang Formation|14431|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|33689||||||See also Nyerimilang Formation.|||||N||17-JAN-23
O'Dell Tonalite|34972|O'dell Tonalite|32565|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Swifts Creek Igneous Complex|34974|||Lower Devonian||||intrusion|Late Silurian||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite tonalite: grey; medium to coarse-grained; mostly massive and equigranular; with core of dark green-grey, fine-grained hornblende tonalite, I Type.|acid intrusive rock|||Y|I-type|05-SEP-23
O'Mearas Granite|26816|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G30|I-type granite|acid intrusive rock|||Y||17-JAN-23
O'Sullivan Sandstone Member|14456|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35283|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Oaks Grit|14475|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|70933|||||||||||N||17-JAN-23
Ocean View Granite|37768|Jack Rich Granite|37769|||Yes|Formation, beds|Formal|Resvd name published|Described|||Ocean View Suite|37587|Wenlock||||intrusion|Llandovery||||||||No|60541||||||Small elongate, composite pluton. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G508.  Same unit as Ocean View Granodiorite.|Biotite-muscovite granodiorite: with cordierite; medium-grained; foliated with numerous schistose enclaves; S-type. Mylonitic granodiorite: muscovite-biotite granodiorite: coarse-grained; mylonitic; with sparse enclaves; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Ocean View Granite - mylonitic granodiorite 79686|79686|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|||Ocean View Granite|37768|Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G508a.|Muscovite-biotite granodiorite: coarse-grained; mylonitic; with sparse enclaves; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Ocean View Suite|37587|||||Yes|Group, Suite|Formal|Variation of reserved name|Described|||||Wenlock||||intrusion|Wenlock||||||||No|60541||||||This suite was a newly proposed grouping (VandenBerg et al 2004, VIMP report #26 - MURRUNGOWAR). Ocean View Granite/Ocean View Granodiorite are part of this suite - unclear which is current name usage.?|Granodiorite, Granite|acid intrusive rock|||Y||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 Mill Ignimbrite Member|34885|||||Yes|Member, phase|Formal|Other new published name|Described|Shanahan Sandstone|34886|||Late Silurian||||eruption|Late Silurian||||||250||No|22968||||||Type section location given in Willman et al (1999) GSV Report 118.|Ignimbrite|acid volcanic rock|||N||17-JAN-23
Old Sheep Station Granodiorite|32566|Old Sheep Station Granite|28889|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Late Silurian||||||||No|22968||Willman C.|13-JAN-98|||Omeo project. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G136|Non- to weakly magnetic, grey, medium-coarse grained, I-type, biotite granodiorite; homogeneous, foliated with rare enclaves; intruded by moderately magnetic dykes with northwest trend.|acid intrusive rock|||Y|I-type|17-JAN-23
Older Volcanic Group|39878|Older Volcanics|14540|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Oligocene|27.9|.7|isotopic, K/Ar|eruption|Paleogene|36.3|.6|isotopic, K/Ar|||200||No|24383||||||Unclear if this name is still in current use anywhere in Victoria [CEB Feb2015].BOGONG and DARGO 1:250 000. Geological Survey of Victoria map code: -Po. Also subdivided into two unnamed units: subaerial lava flows (-Po1), and plugs and dykes (-Po2). See also Older Volcanics - names used interchangeably.  Age: 36.3 +/- 0.6 Ma. See also Older Volcanics Group for all the units that have replaced this.|Basalt: alkali olivine basalt; black, fine grained, vesicular, with small olivine phenocrysts. Lava flows: nepheline basanite, alkali olivine basalt; interflow sediments, mudstone. Plugs and dykes: also include phonolite.|basic 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
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
Omeo Metamorphic Complex - cordierite-garnet granite 79703|79703|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Soc.|Cordierite- and garnet-bearing biotite granite.|acid intrusive rock|||Y||01-AUG-23
Omeo Metamorphic Complex - gneiss 79705|79705|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sog.|Quartzo-feldspathic gneiss: banded; with quartz, biotite, andalusite, cordierite, sillimanite, K-feldspar, plagioclase and rare garnet; calc-silicate nodules.|high grade metamorphic rock|||U||17-JAN-23
Omeo Metamorphic Complex - granodiorite 79709|79709|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sor.|Biotite granodiorite: medium-grained, equigranular; grey; massive to foliated; rare enclaves of gneiss and small biotite-rich enclaves.|acid intrusive rock|||Y||17-JAN-23
Omeo Metamorphic Complex - leucogranite 79706|79706|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sol.|Contact metamorphosed leucogranite.|acid intrusive rock|||Y||01-AUG-23
Omeo Metamorphic Complex - migmatite 79707|79707|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Som.|Contact metamorphosed migmatite.|high grade metamorphic rock|||U||01-AUG-23
Omeo Metamorphic Complex - pegmatite 79704|79704|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock||||intrusion|Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Soe.|Pegmatite: mainly quartz and feldspar, with some muscovite and tourmaline.|acid intrusive rock|||Y||17-JAN-23
Omeo Metamorphic Complex - phyllite 79708|79708|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sop.|Contact metamorphosed phyllite, recrystallised to hornfelsic.|metasedimentary siliciclastic rock|||N||17-JAN-23
Omeo Metamorphic Complex - schist 79710|79710|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Omeo Metamorphic Complex|14578|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sos.|Biotite schist, spotted schist: with cordierite, andalusite, sillimanite; quartz-rich psammitic schist; often shows differentiated layering; rare calc-silicate nodules.|metasedimentary siliciclastic rock|||N||17-JAN-23
Omeo Metamorphic Complex, Kuark Metamorphic Complex (1)|37680|||||Yes|Group, Suite|Informal|Variation of published name|Not recorded|||||Silurian|||||Ordovician||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Omeo and Kuark Metamorphics.|Gneissic granite, gneiss, migmatite|high grade metamorphic rock|||N||17-JAN-23
Omeo Metamorphic Complex, Kuark Metamorphic Complex (2)|37681|||||Yes|Group, Suite|Informal|Variation of published name|Not recorded|||||Silurian|||||Ordovician||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Omeo and Kuark Metamorphics.|Schist, phyllite|metasedimentary siliciclastic rock|||N||17-JAN-23
Opah Formation|68520|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Cobia Subgroup|32306|||Lutetian||||deposition|Lutetian||||||||No|13323||||||Constituent of the Cobia Subgroup (Latrobe Group)?|Marine clastics.|siliciclastic sedimentary rock|||N||17-JAN-23
Orbost Tonalite|37770|Orbost Granite|26823|||Yes|Formation, beds|Formal|Variation of published name|Described|||Bete Bolong Suite|1540|Lower Devonian||||intrusion|Late Silurian||||||||No|60542||||||Previously known as Youngs Creek Granite. Used as dimension stone for public buildings base courses. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G44|Hornblende-biotite tonalite: fine to medium-grained; medium to dark grey; with small enclaves; altered; I-type.|acid intrusive rock|||Y|I-type|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 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
Oriental Claims Gravel|34816|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Pliocene||||deposition|Pliocene||||||||No|22968|||||||Conglomerate, sandstone: colour variable, mainly brown; predominantly vein quartz pebbles but with lithic cobbles and boulders {granite, high-grade metamorphic rocks} at base; moderately to well bedded; local channel erosion.|siliciclastic sedimentary rock|||N||17-JAN-23
Otway Basin - sedimentary rocks 83105|83105|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Holocene|||inferred||Tithonian|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Source:GSSA province database :  'Jurassic to Cretaceous geological provinces'. Age inferred from age range of Otway Basin.|Sedimentary rocks.|sedimentary rock|||N||18-SEP-23
Otway Group|14685|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Albian||||deposition|Tithonian||||||3500||No|48581|50154|||||Of Medwell (1954) after Otway beds of Seward (1904). See also Lexicon. SJ54-12, SJ55-9.  Probably not in TAS [DPJUN03]. Raised to rank of supergroup following introduction of Crayfish Group (Kopsen and Scholefield 1990) but this caused discontinuity of nomenclature - considered to have limited usefulness - so group status retained. See comments in Refid 66244. Strzelecki Group considered to be a synonym & proposed to be abandoned in VandenBerg et al (2006) and VandenBerg (2009), but retained by Morand (2010).|Fluvial volcaniclastic arkosic sandstone, mudstone, minor black coal, sandstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Ovens Group|14695|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|34148|||||||||||N||17-JAN-23
Paaratte Formation|14730|Paaratte Formation""|14729|||Yes|Formation, beds|Formal|Variation of published name|Defined|Sherbrook Group|16826|||Maastrichtian|||inferred, biostratigraphic correlation|deposition|Santonian|||inferred, biostratigraphic correlation||160|1987||No|48581|48581|||||Of McQueen (1961). Defined 1964. Has previously included Belfast Mudstone, Nullawarre Greensand and Timboon Sand as members but each is preferred as an independent unit in Eastern Otway Basin (GSV Report 103) - 1995.|Carbonaceous, interbedded and laminated fine-grained sandstone, siltstone and mudstone, with thin beds of coarse gravel.|siliciclastic sedimentary rock|||N||17-JAN-23
Padthaway Formation|14771|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Holocene||||deposition|Pleistocene|.69|||||||No|29697|50154||||||Lacustrine: lagoonal, swamp and locally colluvial deposits forming low-lying wetlands between stranded beach ridges: sand, silt, sandy clay, peat, marl, freshwater limestone; unconsolidated|regolith|||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
Parmeener Supergroup, Upper|68522|Parmeener Supergroup|14900|||Yes|Group, Suite|Informal|Variation of published name|Fully described|Parmeener Supergroup|14900|||Upper Triassic|214|1||eruption|Capitanian||||||||No|41696||||||Informal name. Needs a new name. Includes Cygnet Coal Measures; Jackey Shale; Clog Tom Sandstone; Ross, Ossa, Knocklofty, Cluan, Tiers, Brady Formations; Gould Conglomerate.|Carbonaceous sandstone and coal (Late Permian); quartzose sandstone (Early Triassic); lithic and quartz sandstone and basaltic volcanics (Middle Triassic); sandstone, coal and volcaniclastics (Late Triassic).|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Parslow Diorite|69420|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Silurian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G466. Age and lithology updated from GSV data (HG, Dec 2005)|Kaersutite-augite diorite: medium-grained, equigranular; metamorphosed; contains plagioclase, kaersutite, augite, quartz, apatite; metamorphic epidote, actinolite, chlorite, sphene, probable albite. I-type intrusion.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Patawilya Tonalite|37250|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Late Cambrian||||intrusion|Late Cambrian||||||||No|24012|50154|||||Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Light grey-buff, biotite-muscovite tonalite: massive, medium to coarse grained, equigranular; accessory magnetite, epidote and chalcopyrite; common mafic biotite-rich microgranitoid enclaves; magnetic to weakly magnetic.|acid intrusive rock|||Y||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
Pebble Point Formation|14994|Pebble Point Beds|14992|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wangerrip Group|19406|||Selandian||||deposition|Danian||||||158|VIC|No|48581|31036|||||After Pebble Point Beds of Baker 1943. Previously referred to as Bahgallah Formation in South Australia. In the Gambier Basin. See also Lexicon. SJ54-12.  Transgressively overlaps the Otway Group. Age variably recorded as anywhere from Cretaceous to Eocene, so presumably not well defined.|Quartz sand, minor clay: micaceous, fine-grained, friable, generally massive; minor planar cross-bedding; minor gravel, minor volcanic and metamorphic lithic cobbles and pebbles; near shore, shallow marine deposits.|regolith|||N||17-JAN-23
Pember Mudstone Member|28194|Pember Mudstone|15030|||Yes|Member, phase|Formal|Variation of published name|Redefined|Dilwyn Formation|5489|||Paleogene||||deposition|Paleogene|||||||VIC|No|71437|31036|||||Of Bock & Glenie (1965) - introduced this name when they changed Dilwyn Clay to Dilwyn Formation -- for lower part of the formation. In this study Pember Mudstone stands superseded as a separate formation, but it is likely that this is NOT generally accepted? Reinstated as Member (of Dilwyn Formation) in VandenBerg 2009: RefID 66002.|Carbonaceous, micaceous, pyritic silty clay to clayey silt, and minor fine sand.|regolith|||N||17-JAN-23
Penderlea Granite|30689|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|60503||VandenBerg, A.H.M.|23-DEC-96|||Benambra 1:100 000 sheet area. Small granite intrusion north of Lake Omeo. Deeply weathered granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G83|Nonmagnetic, granitic intrusive of uncertain composition; probably S-type|acid intrusive rock|||Y||17-JAN-23
Pental pluton|79641|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||||Lower Devonian||||||||No|68116||||||GSV  G624. For use by Songfa Liu in Pre-Cz Geology maps, and Solid Geology 2022.|Granite: distinguished by geophysical response; very poorly subcropping.|acid intrusive rock|||Y||17-JAN-23
Pentland Hills Volcanic Group|77104|Pentland Hills Volcanics|15046|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Eocene||||eruption|Paleocene||||||||No|65715||||||Previously included in 'Older Volcanics'. Same as Pentland Hills Volcanics. Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p11.|Basalts, olivine nephelinite, limburgite.Alkali olivine basalt to nephelinite, minor tuff: dark grey; fine-grained; rarely vesicular; secondary calcite and magnesite in vesicles and joints.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
Percydale Granite|30287|||||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60503||VandenBerg A.H.M., Willman C.E., Hendrickx M., Magart A.& Simons|09-MAY-96|||Formerly part of Sisters Granite. Benambra 1:100 000 sheet area. Notified NLR by Hendrickx 23Jul96. Re-reserved 8Oct96. Intrudes Teapot Creek Formation and Mount Tambo Group. Age and lithology updated from GSV data (HG, Dec 2005)|Granite: grey to red, strongly porphyritic in quartz and feldspar, groundmass ranges from glassy to equigranular, A-type|acid intrusive rock|||Y|A-type|17-JAN-23
Permian sedimentary rocks 76691|76691|||||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
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
Peterborough Member|15110|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Port Campbell Limestone|15462|||||||deposition|||||||||No|48911||||||Of Port Campbell Limestone.|||||N||17-JAN-23
Pheasant Creek Granite|15134|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Not a variation of Pheasant Creek Volcanics, NSW. GSV Code: G138. Age and lithology updated from GSV data (HG, Dec 2005). Superseded by Allwood Granodiorite on the CORRYONG sheet only.|I-type granite|acid intrusive rock|||Y||17-JAN-23
Phipps Granite|69422|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Boggy Plain Supersuite|2092|Lower Devonian||||intrusion|Lower Devonian||||||||No|61169||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G460. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite leucogranite: cream to pink; equigranular medium-grained; unfoliated; contains plagioclase, orthoclase, biotite, rare muscovite.|acid intrusive rock|||Y||05-SEP-23
Phosphate Hill Formation|74885|Phosphate Hill Chert|69397|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Floian||||deposition|Tremadocian||||||||No|64606||||||Reserved as Phosphate Hill Chert (VandenBerg, F., 2005).|Chert, siltstone, black shale, phosphorite: chert and phosphorite brown and grey, thinly bedded; phosphorite medium to coarse sand-sized; dark green-grey; contains Early Ordovician graptolites. Deep-marine hemipelagic deposits.|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Piangil Member|15148|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Woorinen Formation|20618|||Holocene||||deposition|Chibanian|||||||VIC|No|35272|42966||||||||||N||17-JAN-23
Picton Scoria|15168|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|35722|||||||Scoria||||N||17-JAN-23
Pike Hill Granodiorite|37771|Pike Hill Granite|29703|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Kuark Metamorphic Complex|9854|Ocean View Suite|37587|Wenlock||||intrusion|Wenlock||||||||No|60541||||||Within the Kuark Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|G504. Biotite granodiorite: coarse to medium-grained; foliated; weathered; S-type intrusive|acid intrusive rock|||Y|S-type|05-SEP-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
Pine Lodge Leucitite|75957|Cosgrove Leucitite|4763|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Messinian|5.6||isotopic, K/Ar||Tortonian|8.9|.2|isotopic, Ar/Ar, step heat|||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||Formerly labelled Cosgrove Leucitite, and on earlier GSV maps, Newer Volcanics. Outlier of Cainozoic lava distinct in its composition and far enough from other Cainozoic volcanic rocks to merit its own formation. Exposures are mainly restricted to two quarries. Birch (1976) described it as leucite-bearing lava at Cosgrove, but did not formally name it. Tickell (1989) first used the name Cosgrove Leucitite, but this conflicts with the Cosgrove Porphyry in New South Wales, which has precedence (Richardson 1975). Hence the new name Pine Lodge Leucitite, after the parish of Pine Lodge, within which the unit lies. See also informal Cosgrove leucitite for age & lithology info. Ar/Ar age from Cohen et al. 2008 sample Cosgrove E7980.|Dark grey olivine leucitite with phenocrysts of olivine and uncommon clinopyroxene in a groundmass of clinopyroxene, leucite, Fe-Ti oxides, interstitial nepheline and brown Ba- and Ti-rich mica.|basic 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
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
Pinnak Sandstone, Howqua Chert|37674|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Adaminaby Group|98|||Ordovician||||deposition|Ordovician||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Pinnak Sandstone and Howqua Chert.|Marine, predominantly turbiditic sandstone, shale, black shale; includes unmapped Bendoc Group|siliciclastic sedimentary rock|||N||17-JAN-23
Pinnak Suite|31625|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Pintadeen Basalt|26280|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Aquitanian||||eruption|Aquitanian|22.5||||||VIC|No|42628|42826|VandenBerg, A.H.M.|19-OCT-84|||BD on Kilmore 1:50 000 sheet, 93/27558.|Olivine basalt: blue-black; dense; phenocrysts of labradorite, clinopyroxene, olivine in finer matrix with interstitial devitrified glass; well developed columnar jointing.|basic volcanic rock|||N||17-JAN-23
Pipeline Volcanics|35518|Brodribb River Volcanics|37621|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|23309||VandenBerg A. H. M.|22-MAY-00|||To be used in the Tasman Fold Belt System in Victoria Special Publication.|Welded coarse ignimbrite, crystals of quartz + feldspar, lithic grains in a fine foliated matrix, flattened pumice; sandstone and shale lithics; minor quartz-feldspar porphyry: quartz phenocrysts in a fine sericitised matrix.|acid volcanic 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
Pitfield Volcanics|30281|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|Dja Dja Wrung Supergroup|39124|||Cambrian||||eruption|Cambrian|||||||VIC|Yes|60585||Taylor D.|02-MAY-96|VandenBerg, F.|02-MAY-96|Ballarat 1:250 000 sheet area.|Consists of metavolcanic greenstones.|metamorphosed basic igneous rock|||N||17-JAN-23
Piton Scoria Member|15297|Piton Scoria|15298|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Tower Hill Tuff|18502|||Holocene||||deposition|Holocene||||||||No|41701||||||Of Orth (1988), who downgraded the Piton Scoria of Gill (1967).|Scoria, spatter, ash, nepheline basanite lava: scoria unconsolidated; basanite highly vesicular; small olivine phenocrysts in opaque groundmass.|basic volcanic rock|||N||17-JAN-23
Plains Basalts|73169|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||Plains Suite|73173|||||eruption|||||||||No|61896||||||See also the informal Plains basalts.||basic volcanic rock|||N||17-JAN-23
Platina Siltstone Member|15316|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Coopers Creek Formation|26492|||Lower Devonian||||deposition|Lower Devonian|||||||VIC|Yes|35283||VandenBerg, A.H.M.|04-FEB-74||||Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Plumb Gully Ignimbrite|22664|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Pragian||||eruption|Pragian||||||100||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Quartz-feldspar ignimbrite with red volcanic lithic clasts and red pumice fragments.|acid volcanic rock|||N||17-JAN-23
Poddy Creek Metamorphics|37588|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Wenlock|||||Llandovery||||||||No|60541||||||Metamorphics are derived entirely from the Pinnak Sandstone.|Slate with spots of chlorite, muscovite and sericite; quartz sandstone; biotite phyllite and psammite; spots of retrogressed cordierite.|metasedimentary siliciclastic rock|||N||17-JAN-23
Poddy Creek Metamorphics - phyllite 79711|79711|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|Poddy Creek Metamorphics|37588|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Spp.|Biotite phyllite and psammite; spots of retrogressed cordierite|metasedimentary siliciclastic rock|||N||17-JAN-23
Poddy Creek Metamorphics - spotted slate 79712|79712|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|Poddy Creek Metamorphics|37588|||Wenlock|||||Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Sps.|Slate with spots of chlorite, muscovite and sericite; quartz sandstone.|metasedimentary siliciclastic rock|||N||17-JAN-23
Pohlner Conglomerate Member|37589|Pohlner Conglomerate Bed|30433|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Murray Hill Sandstone|30432|||Silurian||||deposition|Silurian||||||||No|61183||||||See also Pohlner Conglomerate Bed of Cayley and Taylor (1997). P.C. Bed and P.C. Member were both used but P.C. Member appears to be the approved name (VandenBerg 2009).|Polymictic conglomerate, poorly sorted, subrounded clasts: sandstone, vein quartz, rarer siltstone, chert, mafic and felsic volcanics; coarse-grained matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Point Addis Limestone|15365|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Torquay Group|18441|||Miocene||||deposition|Chattian|26|||||||No|70942||||||See also the misspelt Port Addis Limestone.  Overlies Angahook Member of the Demons Bluff Formation.|Yellow sandy bryozoal calcarenite. Ferruginous intraclastic conglomerate with abraded shelly and vertebrate skeletal components.|carbonate sedimentary rock|||N||17-JAN-23
Point Danger Clay|15368|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34421|||||||Clay|sediment|||N||17-JAN-23
Point Hesse Clay|15369|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|42318|||||||Clay|sediment|||N||17-JAN-23
Point Ricardo Granite|29713|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Wenlock||||||||No|43315||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite granite: medium-grained; I-type intrusive |acid intrusive rock|||Y||17-JAN-23
Point Ronald Clay|15380|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|48581||||||See also Lexicon. SJ54-11,12.|Clay|sediment|||N||17-JAN-23
Polar Star Suite|34903|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lochkovian||||intrusion|Pridoli||||||||No|22968||||||Formerly a part of Fagan's (1979) Falls Creek Series. Possibly obsolete now?|Hornblende-bearing rock, Granodiorite, Tonalite|acid intrusive rock|||Y||17-JAN-23
Polar Star Tonalite|34851|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Polar Star Suite|34903|Lower Devonian||||intrusion|Lower Devonian|418|4||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). 418? +/-4 Ma (U/Pb zircon)|I-type; Biotite tonalite: grey; medium-grained; equigranular; minor porphyritic fine-grained tonalite; moderately to strongly foliated.|acid intrusive rock|||Y|I-type|17-JAN-23
Polisbet Granite|83418|Polisbet pluton|83411|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Glenloth Suite|37620|Devonian|||||Devonian||||||||No|73505||||||G319. RefID 73505 p19, p20. After Polisbet Parish at northern end of granite. A 75 km long intrusion that extends from NW of Nyah West to SE of SeaLake. Magnetic response shows strong zoning, with both nonmagnetic parts and other areas to 60 nT. Gravity response to 80 micrometres/second/second lower that surrounds in the N and W but less than 20 micrometres/second/second in the S and E. Part of the Lalbert Batholith. Shown in GSNSW seamless geology as 'Glenloth Suite - ""Polisbet pluton G319""'.|Typically felsic granite with quartz, plagioclase, muscovite, microcline and biotite.||||Y||10-SEP-23
Polworth Conglomerate|15419|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|42318|||||||Conglomerate|siliciclastic sedimentary rock|||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
Poowong gabbro|15449|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|gabbro, dolerite 82972|82972|||Upper Cretaceous|||isotopic|intrusion|Upper Cretaceous|||isotopic|||||No|34843||||||Olivine gabbro plug. included in 'gabbro, dolerite 82972', which is used in GA's Alkaline Rocks data compilation.|Gabbro|basic intrusive rock|||Y||17-JAN-23
Port Campbell Limestone|15462|Peterborough Beds|15109|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Heytesbury Group|8311|||Messinian|5.5|||deposition|Middle Miocene|15|||||550|VIC|No|48581|31036|||||Of Baker (1953) after the Port Campbell Beds of Baker (1950). See also Lexicon. Also supersedes Port Campbell Beds etc. SJ54-11,12.|Calcarenite, minor calcilutite: generally fine-grained; bryozoan, mollusc, echinoid and brachiopod fragments, minor coarse-grained calcarenite, quartz sand and clayey silt; weakly cemented, moderately bedded; continental shelf deposit.|carbonate sedimentary rock|||N||17-JAN-23
Port Fairy Calcarenite|15469|Port Fairy Beds|15468|||Yes|Member, phase|Formal|Variation of published name|Fully described|Bridgewater Formation|2543|||Pleistocene||||deposition|Pleistocene||||||||No|29425||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Calcarenite|regolith|||N||17-JAN-23
Port Grinder beds|15470|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|30570|||||||||||N||17-JAN-23
Port Melbourne Sand|15479|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Yarra Delta Group|29186|||Holocene||||deposition|Holocene|||inferred, underlying unit|||12||No|30986||||||Younger than Coode Island Silt|Yellow-brown, fine- to medium-grained sand, sometimes shelly (more commonly in the lower beds) and carbonaceous. Rare peat beds in the upper part. Variably calcareous.|regolith|||N||17-JAN-23
Portland Limestone|27882|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Heytesbury Group|8311|||Miocene||||deposition|Miocene||||||||No|31624|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Post Office Granite|30690|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Bingo Munjie Suite|34913|Lower Devonian||||intrusion|Lower Devonian||||||||No|44184||VandenBerg, A.H.M.|23-DEC-96|||Benambra 1:100 000 sheet area. May be felsic phase of Bingo Munjie Quartz Diorite. Also referred to as Post Office pluton and "The Knocker".  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G113|Biotite granite, hornblende-biotite diorite; mainly granite soil: may be felsic phase of Bingo Munjie Quartz Diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Postman Spur Granodiorite|23919|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock||||intrusion|Llandovery||||||||No|42627||VandenBerg A.H.M., Orth K.|22-MAR-89|||'Spur' may be dropped. BD in Bendoc 1:100 000 geological map (1990). GSV Code: G59. Biotite granodiorite. A-Type. Age and lithology updated from GSV data (HG, Dec 2005).|Grey, medium grained, biotite granodiorite, S-type; rare cordierite; with abundant gneissic and schistose enclaves|acid intrusive rock|||Y|S-type|17-JAN-23
Powncebys Tonalite|34430|Powncebys Granodiorite|32452|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Glenlogie Suite|7426|Lower Devonian||||intrusion|Lower Devonian||||||||No|22756||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G367|Medium grained, biotite-hornblende tonalite; grey speckled appearance; pronounced magmatic flow banding defined by elongate feldspar crystals.|acid intrusive rock|||Y|I-type|17-JAN-23
Pretty Hill Formation|15555|Pretty Hill Sandstone|15560|||Yes|Formation, beds|Formal|Other new published name|Defined|Crayfish Subgroup|4874|||Hauterivian||||deposition|Berriasian||||||5000||No|41269|73356|||||Of the Crayfish Subgroup also in some classifications by geologists.|Outwash fan and braided stream deposits. Comprises interbedded litharenties and shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Pretty Valley Suite|69707|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Early Silurian||||intrusion|Early Silurian||||||||No|61164||||||Includes Pretty Valley Tonalite and Bundara Tonalite. Age inconsistent with that of Pretty Valley Tonalite.|I-type, Tonalite|acid intrusive rock|||Y||17-JAN-23
Pretty Valley Tonalite|69706|Pretty Valley Granodiorite|15568|||Yes|Formation, beds|Formal|Variation of published name|Described|||Pretty Valley Suite|69707|Lower Devonian|403|||intrusion|Lower Devonian|411|||||||No|61164||||||Geological Survey of Victoria map code: G154. Formerly Pretty Valley Granodiorite, Pretty Valley Gneissic Tonalite, Pretty Valley Granite. Age and lithology updated from GSV data (HG, Dec 2005). Intruded by Niggerheads Granodiorite. Age inconsistent with that of Pretty Valley Suite.|Biotite tonalite: coarse grained, equigranular with minor hornblende; gneissic; abundant aplite and pegmatite dykes and migmatite enclaves; I-type.|acid intrusive rock|||Y|I-type|05-SEP-23
Princetown Member|15601|Princetown member|15602|||Yes|Member, phase|Formal|Unknown or process pending|Described|Dilwyn Formation|5489|||Paleocene||||deposition|Paleocene||||||||No|70942|||||||||||N||17-JAN-23
Promontory Suite|31627|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Middle Devonian||||||||No|42726|||||||Mainly S-type monzogranites|acid intrusive rock|||Y||17-JAN-23
Promontory leucogranite|34780|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|22942|||||||Leucogranite|acid intrusive rock|||Y||17-JAN-23
Puckapunyal Formation|15639|||||Yes|Formation, beds|Formal|Other new published name|Defined|Murrindindi Supergroup|35522|||Lochkovian||||deposition|Pridoli||||||1500|VIC|No|60083|61185|||||Interfingers laterally with Humevale Siltstone. Probably a lateral equivalent of the McIvor Sandstone.|Upward fining sequence of thin- to thick-bedded turbidites: mostly coarse- to very coarse-grained; may contain pebbly bases; sandstones mostly quartz and quartz-lithic arenites.|siliciclastic sedimentary rock|||N||17-JAN-23
Purgagoolah Granite|29714|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Ocean View Suite|37587|Wenlock||||intrusion|Wenlock||||||||No|43315||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. Of Ocean View Suite. Age and lithology updated from GSV data (HG, Dec 2005)|Granite: coarse to medium-grained; weathered; S Type intrusive|acid intrusive rock|||Y||05-SEP-23
Pyalong Granite|15694|Pyalong Adamellite|25422|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Pyalong Suite|31628|Upper Devonian|359|7|isotopic, K/Ar|intrusion|Middle Devonian|376|2|isotopic, U/Pb|||||No|41570|64612|||||See also informal Pyalong granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G283. Supersedes Cobaw Granite, Pyalong Adamellite, Pipers Creek Granite. Previously of Cobaw Suite.|Nonmagnetic, pale grey, coarse-grained, biotite granite; reduced S- type; commonly porphyritic in K-feldspar; occasional biotite microgranite enclaves and biotite clots.|acid intrusive rock|||Y|S-type|17-JAN-23
Pyalong Suite|31628|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Is this Suite still needed? Only one current constituent, but may include Glenaroua Microgranite?|Granite|acid intrusive rock|||Y|S-type|17-JAN-23
Pyramid Hill Granite|15707|Pyramid Hill granite|40917|||Yes|Formation, beds|Formal|Other new published name|Described|||||Upper Devonian|360|5|isotopic, K/Ar|intrusion|Upper Devonian|372|6|isotopic, K/Ar|||||No|31654||||||Name introduced by Baker (1937) as Pyramid Hill granite. GSV Code: G295.  Age: 372+/-6 Ma, 362+/-8 Ma, 360+/-5 Ma. Magnetic data show that junior synonym Terrick Terrick Granite is part of same intrusion. Age and lithology updated from GSV data (HG, Dec 2005).|Leucocratic biotite-muscovite granite, with accessory apatite, zircon, garnet, andalusite, ilmenite and pyrite; coarse-grained, porphyritic with orthoclase phenocrysts; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Pyrenees Formation|22711|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Saint Arnaud Group|23952|||Lower Ordovician||||deposition|Cambrian|490||||2000|2500||No|22756||Cayley R.|23-JUN-94|||Age: >490Ma.|Sandstone and mudstone: sand-rich turbidite facies; moderately to well sorted, variably rounded quartz with minor feldspar and lithic grains in quartz silt or clay matrix; medium to thick bedded; unfossiliferous; weathered to partly kaolinised.|siliciclastic sedimentary rock|||N||17-JAN-23
Quambatook granite|31833|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||Mount Cole Suite|28790|Devonian||||intrusion|Devonian||||||||No|43846|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Queen Coal Seam (VIC)|69143|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Strzelecki Group|17440|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|61140||||||Briefly described.  Also referred to as Queen Seam.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Quiamong Member|15755|Quiamong member|15756|||Yes|Member, phase|Formal|Variation of published name|Defined|Shepparton Formation|25474|||Upper Pleistocene||||deposition|Pleistocene|||||||VIC|No|70961|42966||||||||||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
Quindalup Ignimbrite|34870|||||Yes|Formation, beds|Formal|Variation of published name|Described|Avonmore Subgroup|34825|||Pragian||||eruption|Lochkovian||||||650||No|22968||||||Type section given in Willman et al (1999) GSV Report 118.|Quartz ignimbrite: salmon pink; often coarse-grained with prominent quartz crystals; moderate to high phenocryst content; variably welded, commonly with obvious eutaxitic foliation; minor thin sandstone and conglomerate.|acid volcanic rock|||N||17-JAN-23
Racecourse Plain Tonalite|69418|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Silurian||||||||No|61170||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G463. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite: medium-grained, equigranular; contains quartz, plagioclase (commonly with distinct calcic cores), biotite, hornblende, cummingtonite (within hornblende) I Type.|acid intrusive rock|||Y|I-type|05-SEP-23
Rainy Creek Porphyry|73488|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Devonian||||eruption|Upper Devonian||||||||No|64612|64612|Williams, B. (GSV)|06-JUL-07|VandenBerg, F.|06-JUL-07||Orthopyroxene-plagioclase-biotite porphyry: fine to medium grained porphyry with phenocrysts of plagioclase and orthopyroxene set in an aphanitic groundmass; magnetic S-type intrusion.|intermediate intrusive rock|||Y|S-type|17-JAN-23
Rankin Road Ignimbrite|29719|||||Yes|Formation, beds|Formal|Resvd name published|Described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||||No|43312||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|13-SEP-95|||Orbost mapping project. Of Snowy River Volcanics.|Consists of bluish green feldspar ignimbrite, with a variable but generally low phenocryst content in a fine vitriclastic matrix.|acid volcanic rock|||N||17-JAN-23
Raymond Falls Lava|30546|Raymond Falls Rhyolite|15895|||Yes|Formation, beds|Formal|Variation of published name|Described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||||No|43206||||||Murrindal area.|Quartz feldspar porphyry, flow banded and partially flowbanded rhyolitic to rhyodacitic lava; parts contain "thunder eggs" (vughs lined with chalcedony and quartz crystals).|acid volcanic rock|||N||17-JAN-23
Red Hut Tonalite|69413|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G544. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite: grey; fine grained, equigranular; magnetic; I-type |acid intrusive rock|||Y|I-type|17-JAN-23
Red Limestone|15951|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|48971|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Red Man Bluff Subgroup|30429|Red Man Bluff Sandstone|15952|||Yes|Subgroup|Formal|Variation of published name|Fully described|Grampians Group|7672|||Llandovery||||deposition|Upper Ordovician||||||1900||No|61749||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. See also  Red Man Bluff Sub-Group, Redman Bluff Subgroup.|Sandstone with interbedded siltstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Red Man Bluff Subgroup, Mount Difficult Subgroup, Silverband Formation|37694|||||Yes|Subgroup|Informal|Variation of published name|Mentioned|Grampians Group|7672|||Wenlock||||deposition|Llandovery||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Red Man Bluff Subgroup, Mount Difficult Subgroup and Silverband Formation.|Marginal marine and fluvial sandstone, red mudstone, minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Red Rock volcanic complex|35474|Red Rock complex|35469|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||||||eruption|||||||||No|23215||||||Name should probably be Red Rock Volcanic Complex?|Volcanics|igneous volcanic rock|||N||17-JAN-23
Reedy Flat Tonalite|34856|Ensay Granite|6202|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ensay Suite|34902|Lochkovian||||intrusion|Pridoli||||||||No|22968||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G128. See also Eumana Granite.|Moderately to highly magnetic, grey, medium to coarse grained, I-type, biotite-hornblende tonalite; massive with hornblende phenocrysts.|acid intrusive rock|||Y|I-type|17-JAN-23
Refrigerator Gap Dacite|69032|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wellington Volcanic Group|37613|||Frasnian||||deposition|Frasnian||||||450||No|66252|66252||||||Discontinuous basal rhyolite/shale breccia and sandstone, grey porphyritic dacite lava, thinly interbedded grey shale and mudstone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Reliance pluton|41775|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|61173||VandenBerg, F.|13-SEP-04|||Geological Survey of Victoria map code: G469.|Subsurface pluton.|igneous intrusive rock|||N||17-JAN-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
Rheola Gabbro|16064|Rheola Diorite|36975|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian|411|8|isotopic, K/Ar|||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G349|Diorite-gabbro complex: mafic to felsic diorites, mafic granodiorite, gabbro, hornfels and massive quartz enclaves|basic intrusive rock|||Y||17-JAN-23
Rhyll Arkose|16066|||||Yes|Formation, beds|Formal|Other new published name|Defined|Strzelecki Group|17440|||Upper Cretaceous|||||Neocomian||||||||No|32002|22476|||||In 2006 said to be: "obsolete name established in 1962 on Phillip Island. Eumeralla Formation used for these rocks since 1971.", but the name continues to be used.|Arkose.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Rhymney Schist|41834|||||Yes|Formation, beds|Formal|Other new published name|Described|Moornambool Metamorphic Complex|37578|||Late Cambrian|||||Middle Cambrian||||||||No|61187|||||||Black, quartz-biotite-graphite schist, laminated: thin graded quartz and pelite layers are relict bedding; pelitic layers contain biotite; graphic material. greasy texture; disseminated pyrrhotite and pyrite mineralization.|metasedimentary siliciclastic rock|||N||17-JAN-23
Rices Hill Sandstone Member|16073|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Humevale Formation|27434|||Pridoli||||deposition|Pridoli||||||||No|38378|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Richmond Granite|16077|||||Yes|Formation, beds|Formal|Other new published name|Described|||Coonooer Suite|37536|Middle Devonian||||intrusion|Lower Devonian||||||||No|42726||||||Briefly described. Originally of the Mount Cole Suite on Lachlan Fold Belt Granites map (1991). Age updated from GSV data (HG, Dec 2005). GSV Code: G361|Pink to white, fine grained, biotite granite, oxidised I-type; some small crosscutting pegmatite veinlets.|acid intrusive rock|||Y|I-type|17-JAN-23
Riddell Sandstone|25442|Riddell Grits|16084|||Yes|Formation, beds|Formal|Variation of published name|Defined|Sunbury Group|33256|||Bolindian||||deposition|Upper Ordovician||||||2000|VIC|No|40761|42826||||||Sandstone, black shale, black and grey siltstone: sandstone thin to thick-bedded; turbiditic; shale commonly graptolitic; uncommon sst: well sorted, x-bedded; minor conglom.: well-rounded pebble conglomerate; deep-marine turbidite fan+hemipelagic deposits|siliciclastic sedimentary rock|||N||17-JAN-23
Rileys Creek Granodiorite|32568|||||Yes|Formation, beds|Formal|Resvd name published|Described|Swifts Creek Igneous Complex|34974|Rileys Creek Suite|34904|Lower Devonian||||intrusion|Late Silurian|408|4||||||No|22968||Willman C.|13-JAN-98|||Omeo project. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G137|Grey to dark grey, medium-coarse grained, biotite-hornblendite granodiorite to quartz diorite; I-type; inhomogeneous, strongly foliated, with abundant stretched mafic igneous enclaves; moderately to highly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Rileys Creek Suite|34904|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lochkovian||||intrusion|Pridoli||||||||No|22968|||||||Hornblende-bearing rock.|acid intrusive rock|||Y||17-JAN-23
Rintoul Creek Formation|34021|Rintouls Creek Sandstone|16108|||Yes|Formation, beds|Formal|Variation of published name|Defined|Tyers River Subgroup|33942|||Hauterivian||||deposition|Valanginian||||||||No|22476|22476|||||Modification after Bolger and Carey (1983) contains Locmany and Exalt Members. Name proposed to be dropped in 2006, but use continues. The unit includes an arkosic succession at the top that is of entirely different provenance to the quartz-lithic sequence below.|Siltstone and sandstone with minor coal seams. Includes an arkosic succession at the top that is of entirely different provenance to the quartz-lithic sequence below.|siliciclastic sedimentary rock|||N||17-JAN-23
Riverina Granite|35598|Riverina Grey Granite|35597|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|23275||||||Building stone. See also Riverina Grey Granite and Riverina Grey granite, called just Riverina Grey.|Granite|acid intrusive rock|||Y||17-JAN-23
Rivernook Member|16131|||||Yes|Member, phase|Formal|Other new published name|Described|Dilwyn Formation|5489|||Eocene||||deposition|Paleocene||||||6||No|44232||||||See also Lexicon. SJ54-11,12.|Glauconitic and limonitic sand and clay.||||N||17-JAN-23
Roadsend Formation|34865|||||Yes|Formation, beds|Formal|Other new published name|Described|Avonmore Subgroup|34825|||Lower Devonian||||deposition|Lower Devonian||||||40||No|22968|||||||||||N||17-JAN-23
Roaring Mag Member|16160|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Tabberabbera Formation|17618|||Lower Devonian||||deposition|Lower Devonian||||||||No|43530|||||||Dominantly mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Robertson Creek Granodiorite|29550|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42971||||||Glenelg River Complex|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Robleys Spur Volcanics|16197|Robleys Spur Rhyolite|16196|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Taggerty Subgroup|17652|||Upper Devonian||||eruption|Upper Devonian||||||||No|35277|||||||Volcanics|igneous volcanic rock|||N||17-JAN-23
Rock Coal Seam|69145|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Strzelecki Group|17440|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|61140||||||Briefly described.|Coal|organic rich sedimentary rock|||N||17-JAN-23
Rocklands Volcanic Group|39879|Rocklands Volcanics|30447|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Lower Devonian||||eruption|Lower Devonian|410|3|isotopic, U/Pb-Pb/Pb ion probe||250|||No|24383|50154|||||Originally (Spencer-Jones 1965) Rocklands Rhyolites (note the plural). Has had a number of name changes including mis-attributings. This name, in VandenBerg 2009, is a variation of Rocklands Volcanics (note the plural) Group in Simpson 1997, who often abbreviated it to Rocklands Volcanics - names used interchangeably.|Subaerial caldera volcanics: rhyolitic ignimbrite, minor rhyolitic lava, fluvial sandstone|acid volcanic rock|siliciclastic sedimentary rock||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
Rocky Camp Limestone Member|30541|Rocky Camp Member|16230|||Yes|Member, phase|Formal|Variation of published name|Fully described|Murrindal Limestone|26788|||Emsian||||deposition|Emsian||||||||No|43206|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Rocky Jack Granite|29715|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Wenlock||||intrusion|Llandovery||||||||No|43315||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: 509|Altered, foliated granite with clinozoisite / epidote; I-type?|acid intrusive rock|||Y|I-type|05-SEP-23
Rocky Valley Granodiorite|30585|Falls Creek Granodiorite|6510|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|43220||||||Tallangatta 1:250 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G155. This unit and Spion Kopje Quartz Diorite combined as East Kiewa Granodiorite in Bogong 1:100k notes (GSV Rep125, 2005), but not Nat Geol Maps Vic|I-type granodiorite|acid intrusive rock|||Y||17-JAN-23
Rodger River Granodiorite|37776|Rodger River Granite|30564|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Devonian||||intrusion|Silurian||||||||No|23615||||||Age and lithology updated from GSV data (HG, Dec 2005).|Biotite-augite granodiorite: slightly K-feldspar phyric; with igneous and sedimentary enclaves; I-type|acid intrusive rock|||Y|I-type|05-SEP-23
Romeny Diorite|38296|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|24383||||||Age and lithology updated from GSV data (HG, Dec 2005).|Diorite: medium grained, equigranular, dark green and pink; magnetic |intermediate intrusive rock|||Y||17-JAN-23
Romsey Subgroup|37591|Romsey Group|24475|||Yes|Subgroup|Formal|Variation of published name|Defined|Castlemaine Group|36202|||Floian||||deposition|Late Cambrian||||||1200||No|23309|64612|||||Includes Angry Hill Sandstone, Byro Gully Shale, Split Hill Sandstone, Stauro Gully Shale and Lano Gully Shale.|Sandstone, siltstone, black shale, chert: sandstone various colours, thick to thin-bedded, turbiditic; siltstone: dark green when fresh, generally well bedded; shale: in places richly graptolitic; chert: minor, well bedded.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Rose Hill Marl Member|16326|Rose Hill Member|16327|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|41043|||||||||||N||17-JAN-23
Rose River Volcanics|68479|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wellington Volcanic Group|37613|||Frasnian||||eruption|Frasnian||||||450||No|66252|66252|||||Interpreted as Ryans Creek Ignimbrite in 2000, but name continues to be used up to at least 2004.|rhyolitic ignimbrite, rhyolite, rhyolitic breccia; minor red mudstone, basalt.|acid volcanic rock|||N||17-JAN-23
Rotten Point Sand|16373|Rotten Point Sands|16374|||Yes|Member, phase|Formal|Unknown or process pending|Described|Dilwyn Formation|5489|||Danian|64|||deposition|Danian|66|||||30||No|70942||||||May be equivalent to Pebble Point Formation.|Sand|siliciclastic sedimentary rock|||N||17-JAN-23
Rough Creek Conglomerate Member|16380|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Towanga Sandstone|27245|||Llandovery||||deposition|Llandovery||||||30||No|41585||||||Murrindal area.|Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Roundhead Member|32296|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Volador Formation|32295|||Maastrichtian||||deposition|Maastrichtian||||||||No|13323||Partridge A.D.|02-FEB-98|||Within the Volador Formation (Emperor Subgroup, Latrobe Group).|Marine shale overlain by incised fluvial sediments.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Rowe's Shale|39643|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088||||||Invalid name. Apostrophes have not been used in place names since at least the 1980s.|Shale|fine grained siliciclastic rock|||N||17-JAN-23
Rowsley Formation|16400|Rowsley formation|25453|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|34991|||||||||||N||17-JAN-23
Royal Albert Shale|39635|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Shale|fine grained siliciclastic rock|||N||17-JAN-23
Rubicon Rhyolite|26879|Rubicon Cordierite Rhyolite|27892|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cerberean Volcanics|3873|||Mississippian|359|15||eruption|Upper Devonian|361|13||||||No|35277|||||||Rhyolite: light bluish-grey, porphyritic; phenocrysts of quartz, biotite, almandine, plagioclase and cordierite; pumiceous ignimbrite at base; base of formation contains concentration of hornfels and andesite lithic fragments.|acid volcanic rock|||N||17-JAN-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
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
Runnymede Formation|16454|Runnymede Member|26882|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Otway Group|14685|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|48624||||||See also Lexicon. SJ54-6. At Killara Bluff in the Casterton area. Name proposed to be abandoned by Duddy (1983). Equivalent to Eumeralla Formation.|||||N||17-JAN-23
Rutledge Marl Member|25457|Rutledges Creek Member|16477|||Yes|Member, phase|Formal|Variation of published name|Described|Port Campbell Limestone|15462|||Middle Miocene||||deposition|Middle Miocene||||||||No|71437||||||See also Rutledge Creek Marl Member, Rutledge Creek Member. Within the Heytesbury Group.|Marl|carbonate sedimentary rock|||N||17-JAN-23
Rutledges Creek beds|72926|Rutledges Creek Beds|16476|||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|61182||||||One of three former subdivisions of Baker (1950) of Port Campbell Limestone, together with Peterborough and Port Campbell beds; also referred to as Rutledges Creek Member.|||||N||17-JAN-23
Ryans Creek Ignimbrite|35139|Rose River Volcanics""|37592|||Yes|Formation, beds|Formal|Variation of published name|Described|Tolmie Igneous Complex|26950|||Upper Devonian|368|||eruption|Upper Devonian|368|||||450||No|22971||||||In the Wangaratta area.|Rhyolitic quartz ignimbrite: cordierite and garnet phenocrysts, densely welded/recrystallized; shows upward zonation from a chilled dark base, to eutaxitic and partly microcrystalline, to recrystallized.|acid volcanic rock|||N|S-type|10-SEP-23
S Creek Granodiorite|37594|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|23309||||||Formerly known as unnamed unit Dgk2 of Howard, 1972.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Saint Arnaud Group|23952|Saint Arnaud beds|16523|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Ordovician|||inferred|deposition|Middle Cambrian|||inferred, biostratigraphic correlation|deposition||4000||No|37501||A.H.M.VandenBerg, H.E.Wilkinson|23-JUN-78|||VandenBerg and Wilkinson 1982 (as St Arnaud Beds); described in Cayley and McDonald 1995 (as Saint Arnaud Group); occurs here (RefID 66002 = VandenBerg 2009) as St Arnaud Group.|Marine turbiditic interbedded siltstone and mudstone with minor sandstone; mudstone is thin bedded, pyritic and rich in carbonaceous matter; mostly highly deformed and contact metamorphosed. (article: 60462).|siliciclastic sedimentary rock|||N||17-JAN-23
Saint Clair Formation|16525|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Silurian||||deposition|Silurian||||||||No|70933||||||Same unit as Saint Clair Formation (TAS)? Not used since 1975. Probably obsolete.|||||N||17-JAN-23
Saint Elmo Granodiorite|37601|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician|476|6||intrusion|Middle Cambrian|482|9||||||No|23309|50154|||||Supersedes Wando Vale and Deep Creek Granodiorites.  Age 482+/-9Ma, 476+/-6Ma (K/Ar biotite). Of the Glenelg River Metamorphic Complex? Age and lithology updated from GSV data (HG, Dec 2005)|Light grey biotite granodiorite: massive, medium grained, equigranular; accessory magnetite; rare small biotite rich enclaves; weakly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Saint Kilda Formation|16542|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Holocene||||deposition|Holocene|||||||SA|No|34180|40149|||||See also definition in 94/27899. Also in Murray Basin.|Undifferentiated Holocene coastal marine sediment. Calcareous, fossiliferous sand and mud of intertidal sand flats, beaches and tidal marshes; organic, gypseous clay of supratidal flats|regolith|||N||17-JAN-23
Saint Kilda Granodiorite|37778|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Devonian||||||||No|23309||||||Age updated from GSV data (HG, Dec 2005). Different unit from Saint Kilda Formation? name may be invalid as Saint Kilda Formation has precedence. see also the informal Saint Kilda Granite.|Granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Saint Patricks Creek Granite|16554|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount Elizabeth Caldera Complex|34812|||Lower Devonian||||intrusion|Lower Devonian|402|12||||||No|42726||||||Briefly described. GSV Code: G133.  Age and lithology updated from GSV data (HG, Dec 2005). Age probably K/Ar from Richards and Singleton (1981).|Moderately magnetic, pale pink, medium grained, I-type, biotite granite; equigranular to porphyritic, abundant micrographic intergrowths of K-feldspar and quartz.|acid intrusive rock|||Y|I-type|17-JAN-23
Sale Group|16557|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Pliocene|||||Miocene||||||200||No|31352|||||||Clastics and carbonate sediments: includes gravel, claystone, sandstone, siltstone; nonmarine to marginal marine.|regolith|||N||17-JAN-23
Salt Creek Formation|36797|||||Yes|Formation, beds|Formal|Other new published name|Defined|Demons Bluff Group|36796|||Late Eocene||||deposition|Late Eocene|||||20|25|VIC|No|23778|23778|||||||fine grained siliciclastic rock|||N||17-JAN-23
San Remo Member|68482|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Strzelecki Group|17440|||Aptian||||deposition|Barremian||||||||No|24551||||||See also "San Remo Member". Probably a member of the Wonthaggi Formation.|||||N||17-JAN-23
Sandford Limestone|16592|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Longfordian||||deposition|Longfordian||||||||No|30184|||||||Limestone|siliciclastic sedimentary rock|||N||17-JAN-23
Sandhurst Group|16598|Sandhurst Beds|28987|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||||||deposition|||||||||No|42683|||||||||||N||17-JAN-23
Sandpatch Point Granite|16606|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G29|I-type granite|acid intrusive rock|||Y|I-type|17-JAN-23
Sandringham Sandstone|80411|Sandringham Sands|26886|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Pliocene|4.6||inferred, overlying unit||Miocene|5.8|.2|isotopic|||||No|71419||||||Entirely paralic sediments unfossiliferous towards top. Gill's 1956 Sandringham Sands type section retained for Sandringham Sandstone.  Unit description significantly revised. Depositional environment and extent discussed but not fully determined. Min age (4.6 Ma) based on overlying basalts, but oldest are undated. Max age from Sr/Sr ratios in molluscs. This newly redescribed unit intended to replace Hanson Plain Sand, Moorabool Viaduct Sands, Baxter Sandstone, Marina Cove Sand, Black Rock Sandstone, Red Bluff Sandstone, Beaumaris Sandstone, Brighton Group.|Sandy silt, fine sandstone, sandy conglomerate to pebbly sandstone, clayey sand, clayey gravel, carbonaceous band including plant fossils; lag deposit including variable to highly-rounded pebbles; horizontal and swaley cross-lamination; burrows.|siliciclastic sedimentary rock|||N||17-JAN-23
Sapper Nose Rhyolite Member|34859|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Thorkidaan Volcanics|18080|||Ludlow||||eruption|Ludlow||||||||No|60503||||||Recognised purely on the basis of its high potassium response in the radiometric data.|Dominantly fine-grained, weakly porphyritic rhyolite lavas; aphanitic to moderately quartz-feldspar phyric with minor biotite; sericite.|acid volcanic rock|||N||17-JAN-23
Sarah Allen Granodiorite|30506|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22878||Simpson C.|19-SEP-96|||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G523|Highly magnetic, pale grey, medium grained, plagioclase-rich, biotite-minor hornblende granodiorite; massive|acid intrusive rock|||Y|I-type|05-SEP-23
Sardine Conglomerate|16626|Sardine beds|16627|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Late Silurian||||deposition|Wenlock|||||||VIC|No|41585|42647|||||Murrindal area. Of the Wombat Creek Group? Not according to Geology of Victoria (2003) [CEB].|Pebble to cobble-conglomerate: massive; minor sandstone; matrix is a mixture of sand, small pebbles and silt; most clasts are micaceous sandstone; minor volcanigenic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Sarsfield Granite|16631|Clifton Creek Granite|4156|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian|371|11||intrusion|Upper Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G131|S-type granite, large crystals of K-feldspar, plagioclase and quartz with lesser garnets and cordierites set in a finer grained matrix|acid intrusive rock|||Y|S-type|17-JAN-23
Saturday Morning Tonalite|32562|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rileys Creek Suite|34904|Lower Devonian||||intrusion|Lower Devonian||||||||No|22968||Willman C.E.|13-JAN-98|||Omeo 1:100 000 sheet area (8423). Geological Survey of Victoria map code: G528.|I-type; Biotite-hornblende tonalite: fine-grained; porphyritic with tabular hornblende phenocrysts. |acid intrusive rock|||Y|I-type|17-JAN-23
Sawpit Formation|83256|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Crayfish Subgroup|4874|||Valanginian|||inferred, biostratigraphic correlation||Berriasian|||inferred, biostratigraphic correlation|||1681|VIC|No|73386||||||Belongs to the latest Berriasian to Valanginian Upper Ruffordiaspora australiensis Spore-Pollen Subzone, and the S1-P1 to S1-P4 chemostratigraphic packages (Eid et al., 2021a). Newly designated type section defined between 1402 m and 2465.8 m in Sawpit-1 (Eid et al., 2021a). Includes McEachern Member at base.|Consists of a series of stacked fluvial channel sands, each with overlying fluvio-lacustrine shales. Includes basal unit of fluvial sandstones, quartz arenites and subarkoses, with thin interbeds of siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Schofield Granite|37595|Schofield Adamellite|33128|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Late Cambrian||||intrusion|Late Cambrian||||||||No|23309|50154|||||Of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005). Originally Schofield Adamellite of Kemp and Gray (1999).|Light buff, muscovite-biotite granite: heterogeneous, foliated, medium to coarse grained, porphyritic with megacrysts of microcline; foliation defined by schlieren and aligned biotite-muscovite clots and selvedges; abundant schist and migmatite enclaves.|acid intrusive rock|||Y|S-type|17-JAN-23
Scorpion Creek Sandstone|22824|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Timbarra Subgroup|30554|||Pragian||||deposition|Lochkovian||||||20||No|43206||Orth K.|20-SEP-89|||Murrindal area.|Sandstone and siltstone, ash, conglomerate, pebbly sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Scotts Flat Granite|37777|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Granite: reduced; nonmagnetic (article: 60462). Age and lithology updated from GSV data (HG, Dec 2005)|Granite: medium grained; highly weathered outcrops of quartz, kaolinite and muscovite; nonmagnetic |acid intrusive rock|||Y||17-JAN-23
Scrubby Flat Gabbro|37596|Scrubby Flat Granite|29830|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Arte Suite|75779|Wenlock||||intrusion|Llandovery||||||||No|60541||||||Intrusive within the Kuark Metamorphic Complex. Large previously unmapped gabbro, poorly exposed. Age and lithology updated from GSV data (HG, Dec 2005) GSV Code: G505.  To be included in the Arte Suite in the Seamless Geology of Eastern Victoria (advice from V. Morand OCT-2010).|Medium-coarse grained, pyroxene, hornblende gabbro and gabbronorite.|basic intrusive rock|||Y||05-SEP-23
Scrubby Junction Granodiorite|33130|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Cambrian||||intrusion|Middle Cambrian||||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granodiorite: foliated, medium to coarse grained, porphyritic with microcline phenocrysts; schlieric layering and nebulitic banding are common; common enclaves of schist. Includes pegmatite and sheets of garnet leucogranite; non-magnetic|acid intrusive rock|||Y|S-type|17-JAN-23
Scutellina Limestone|16699|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|42371|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Seacombe Marl Member|16702|Seacombe Marl|16703|||Yes|Member, phase|Formal|Unknown or process pending|Described|Lakes Entrance Formation|10081|||Aquitanian||||deposition|Chattian||||||||No|35273|||||||Marl|carbonate sedimentary rock|||N||17-JAN-23
Sealers Cove Granite|16716|Sealers Granite|35576|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G258|Cordierite-biotite granite: fine grained to porphyritic; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Seaspray Group|16717|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Holocene||||deposition|Rupelian||||||2500||No|31352||||||Lateral equivalent of Latrobe Valley Group.|Sand, calcareous, sandy and silty limestone, moderately consolidated, ferruginised with patchy carbonate sediment; often richly fossiliferous.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||12-SEP-23
Seldom Seen Formation|30566|Seldom Seen Group|16731|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Yalmy Group|20777|||Wenlock||||deposition|Llandovery||||||2600||No|43206||||||Murrindal area.  See also Mount Seldom Seen Formation.  Numerical age: ~440-430Ma from 1995 reference.|Quartzite, conglomerate, breccia; variably sorted, clast supported conglomerate; debris-flow breccia; pebbly and well sorted sandstone; clasts of chert, quartzite, intermediate to felsic volcanics, shale, black slate; rare mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Selma Sandstone|25470|Selma Sandstones|16740|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33601|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Selwyn Block - undetermined rocks 83113|83113|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. Neoproterozoic rocks in the Selwyn Block area, Vic. Source probably: Stavely solid geology interpretation (Solid Geology GA-GSV). 
|Unknown. Possibly metasedimentary rocks.|unknown|||U||17-JAN-23
Selwyn Granite|27564|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Devonian||||intrusion|Devonian||||||||No|33607|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Sentinel Rock Clay|16748|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|70942|||||||Clay|sediment|||N||17-JAN-23
Septarian Limestone|16757|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|70942|||||||Limestone|carbonate sedimentary rock|||N||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
Serra Sandstone|30439|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Difficult Subgroup|30438|||Pridoli||||deposition|Ludlow||||||500||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. Probably an equivalent to Grampians or Stawell Sandstone; also thought to be equivalent of Wartook Sandstone at Rigby Rock. See also Serra Sandstone Formation.|Quartz sandstone, minor siltstone and conglomerate; sandstone pale, medium to coarse grained with subrounded vein quartz pebbles, medium to thickly bedded. Conglomerate bands are pale grey, polymictic, poorly sorted with open framework.|siliciclastic sedimentary rock|||N||17-JAN-23
Seven Creeks Basalt|16777|Euroa Limburgite|76927|||Yes|Formation, beds|Formal|Other new published name|Described|Euroa Volcanic Group|76925|||Miocene|6.79|.16|isotopic, K/Ar|eruption|Miocene||||||||No|33752||||||Age: +6.8Ma. Age from Wellman (1974) indicates late Miocene age for southern end of unit.|Dark grey mafic volcanic rock containing small phenocrysts of olivine in a groundmass of augite, glass, magnetite and rare plagioclase, leucite or nepheline and red-brown biotite; ranges from alkali basalt to basanite; minor scoria and ash.|basic volcanic rock|||N||17-JAN-23
Shanahan Sandstone|34886|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount Tambo Group|26773|||Pridoli||||deposition|Ludlow||||||1200||No|60503||||||Type section location given in Willman et al (1999) GSV Report 118. Also referred to as Mount Shanahan Sandstone.|Sandstone and siltstone, with interbedded ignimbrite, minor lava and volcanigenic rocks at the base.|siliciclastic sedimentary rock|||N||17-JAN-23
Sheehans Bluff Limestone Member|16818|Sheehan Bluff Member|16817|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Cowombat Siltstone|25864|||Pridoli||||deposition|Ludlow||||||||No|39447|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Sheepyard Flat Boninite|22836|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Lickhole Volcanic Group|37572|||Cambrian|||||Cambrian||||||||No|23309||VandenBerg, A.H.M.|30-JUN-94||||Ultramafic boninite lava and volcanic breccia; rare interbeds of finer volcaniclastics and two thin flows of tholeiitic basalt. Includes zones of melange: blocks of boninite, metabasalt, serpentinite and chlorite slate in a dark schistose matrix.|basic volcanic rock|ultramafic volcanic rock||N||17-JAN-23
Sheevers Spur Ignimbrite|37598|Sheevers Spur Rhyodacite|23965|||Yes|Formation, beds|Formal|Variation of published name|Described|Dartella Volcanics|5238|||Lower Devonian||||eruption|Lower Devonian||||||250||No|60503||||||See also Sheevers Spur Rhyodacite (def).  Excludes Larsen Creek Ignimbrite.|Ignimbrite: dacitic pyroxene-feldspar ignimbrite, grey-green, densely welded (60505). Ignimbrite: flat lying moderately magnetic (20-150 nT); very low total count, K, Th, U (60508)|acid volcanic rock|||N||17-JAN-23
Sheoak Gully Boninite|30463|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Heathcote Volcanic Group|68647|||Early Cambrian|||||Early Cambrian||||||||No|60599|60599|Wohlt K.|03-SEP-96|||Intruded by Colbinabbin Diorite Sill.|Deep marine boninite: phenocrysts of pyroxene, chromite, plagioclase; sperulites: minor rhyolite lava, volcanic sandstone, ash, hyaloclastite breccia (60592). Intensely magnetic and nonmagnetic boninite; low K, Th and U (60597).|ultramafic volcanic rock|acid volcanic rock||N||17-JAN-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
Sherbrook Group|16826|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|Otway Supergroup|28897|||Maastrichtian|||||Cenomanian||||||5000||No|34063||||||Previously of the Knight Group. Poor hydrocarbon source potential.|Interbedded conglomeratic sandstone, sandstone, siltstone and claystone; the latter two dominating at depth.|siliciclastic sedimentary rock|||N||17-JAN-23
Sherbrook Supersequence|73297|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Upper Forcipites longus|||biozone|deposition|Nothofagidites senectus|83||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||This sequence marks a basinwards shift in depositional environments and continued progradation of deltaic-coastal successions; structural control during deposition of this sequence isless than that of the older Shipwreck Supersequence. Age: Campanian - Maastrichtian.||siliciclastic sedimentary rock||polyhistory basin|N||27-APR-23
Shippen Gully Porphyry|37522|||||Yes|Formation, beds|Formal|Resvd name published|Described|Tolmie Igneous Complex|26950|||Upper Devonian||||eruption|Upper Devonian||||||||No|61174||Vandenberg, A.H.M.|20-SEP-02|||Used on the BUFFALO 1:100 000 sheet and report. Geological Survey of Victoria map code: G192. Age and lithology updated from GSV data (HG, Dec 2005).|Quartz-feldspar porphyry. Quartz-feldspar porphyry: strongly porphyritic; phenocrysts of quartz, plagioclase, perthitic orthoclase, biotite and garnet in a fine-grained granoblastic groundmass of quartz, plagioclase and orthoclase; occasional cordierite |acid intrusive rock|||Y|S-type|17-JAN-23
Shipwreck Supersequence|73296|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Tricolporites apoxyexinus|83||biozone|deposition|Palaeohystrichophora infusorioides 1ai|92.5||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||Seismic evidence at Copa-1, Mussel-1 and Conan-1 suggest that older Late Cretaceous (?Cenomanian-Campanian) sediments may be present in growth wedges adjacent to extensional faults. This sequence marks the onset of a second extensional event in the Otway Basin.||siliciclastic sedimentary rock||polyhistory basin|N||27-APR-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 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 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
Silvan Granodiorite|27895|Silvan Granite|16883|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Tynong Suite|18760|Upper Devonian||||intrusion|Upper Devonian||||||||No|71180||||||See also the informal Silvan Granite. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite granodiorite porphyry.|acid intrusive rock|||Y|I-type|17-JAN-23
Silver Flat Porphyries|30344|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian|||||Ludlow||||||||No|60503||VandenBerg, A.H.M.|16-JUL-96|||Originally part of Mitta Mitta Rhyolite, probably related to Dartella Volcanics. Intrudes the Mitta Mitta Rhyolite. The Lower Tableland Granite possible part of this group. Age and lithology updated from GSV data (HG, Dec 2005)|Feldspar-quartz porphyry: brown, red, grey; variable amounts of quartz and feldspar; fine recrystallised groundmass; commonly displays well developed columnar jointing.|acid intrusive rock|||Y||05-SEP-23
Silverband Formation|16896|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Grampians Group|7672|||Lower Devonian|419|||deposition|Silurian|427|||||750||No|46053||||||Includes turiniid agnathan scales (Turner 1986) previously identified by Talent (1963) as elasmobranch denticles. numerical age range from 2009 reference.|Micaceous mudstone, red with thin interbands of yellowish quartzo-micaceous sandstone;  laminated, rippled surfaces, mudcracks and bioturbation; poorly outcropping.|siliciclastic sedimentary rock|||N||17-JAN-23
Simmonds Gap Granite|16918|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42791||||||Geological Survey of Victoria map code: G150.|Biotite granite: grey to pinkish-grey; leucocratic; medium to fine grained; varies from equigranular to porphyritic with phenocrysts of pink orthoclase; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Sinclair Valley Sandstone|16928|Sinclair Sandstone|16927|||Yes|Formation, beds|Formal|Variation of published name|Defined|Jordan River Group|9028|||Gorstian||||deposition|Homerian||||||300|VIC|Yes|33601|33601|VandenBerg, A.H.M.|15-JAN-74||01-DEC-73||Thick-bedded structureless to thin-bedded laminated and current-bedded very fine-grained sandstones to siltstones with interbedded shales. Sandstones dark to very light grey in outcrop, often silicified.|siliciclastic sedimentary rock|||N||17-JAN-23
Sisters Granite|34821|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Mount Leinster Igneous Complex|26764|||Triassic||||intrusion|Triassic||||||||No|60503||||||Type locality given in Willman et al (1999) GSV Report 118. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite alkali granite, quartz syenite: cream; fine to medium-grained; rare small K-feldspar phenocrysts. Syenite: biotite-hornblende-quartz syenite: fine-grained; equigranular .|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Sisters Granite - syenite phase 79688|79688|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Sisters Granite|34821|Triassic|||||Triassic||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G558a.|Biotite-hornblende-quartz syenite: fine-grained; equigranular.|intermediate intrusive rock|||Y||17-JAN-23
Skerries Granite|26899|Wingan Granite|20243|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G10. Non-magnetic pluton (Skerries Granite) surrounding an eliptical magnetic pluton (Wingan Granite). The names of these two plutons have been swapped, so that they now apply in the places they were named after.|Biotite granite, felsic: pink to grey; hornfels enclaves locally abundant; mostly non-magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Skull Creek Mudstone|16984|Skull Creek Member|34697|||Yes|Formation, beds|Formal|Variation of published name|Described|Sherbrook Group|16826|||Maastrichtian||||deposition|Campanian||||||||No|41714||||||Different unit from Skull Creek Formation and its various nomenclatural forms in NT.|Shelf to open marine shale.|fine grained siliciclastic rock|||N||17-JAN-23
Slater Ignimbrite|29836|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Elizabeth Caldera Complex|34812|||Lochkovian||||eruption|Lochkovian||||||||No|43284||Simpson C., Sims J.|25-JUL-95|||Mount Elizabeth area. Simpson et al. (1996) have mapped a thin intercalation of red quartz ignimbrite (Slater Ignimbrite) which appears to be exotic, in the Mount Elizabeth caldera. The composition of this rock suggests it originated from the Wairewa Graben (ie might be considered to correlate with the  Tara Range Subgroup)  - advice from Fons VandenBerg 30-SEP-2010.|Quartz ignimbrite: purple-red with pink pumice, coarse-grained with up to 40% crystal content; contains biotite; densely welded throughout.|acid volcanic rock|||N||17-JAN-23
Sloan Knob Microgranite|75777|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Garden Creek Igneous Complex|75778|||Lower Devonian||||intrusion|Lower Devonian|||inferred, geological correlation|||||No|68115||VandenBerg, F. (GSV)|19-OCT-10|||Benambra area? To be included in the Garden Creek Igneous Complex in the Seamless Geology of Eastern Victoria, along with the Besford Ignimbrite (K/Ar age of 400 +/- 7 Ma). The ring dyke for the Garden Creek Igneous Complex|Ring dyke: coarse quartz-feldspar porphyry with large euhedral crystals of quartz and feldspar and some biotite in a finer groundmass of the same minerals; glassy rhyolite with rare quartz phenocrysts.|acid intrusive rock|||Y||17-JAN-23
Smokers Creek Volcanic Subgroup|69402|||||Yes|Subgroup|Formal|Other new published name|Defined|Newer Volcanic Group|38291|||Miocene||||eruption|Miocene||||||||No|64619||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Alkalic rocks around Mount Macedon - distinct from tholeiitic basalts in the area, where use of 'igneous provinces'  nomenclature for naming volcanic rocks is considered. VandenBerg (2007) considers this unit would be eligible for elevation to full group status|Trachyte, mugearite, icelandite, benmoreite, hawaiite and minor basanite.|basic volcanic rock|intermediate volcanic rock||N||17-JAN-23
Snake River Tonalite|37241|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|24012|50154|||||Intrudes Wando Tonalite. Part of the Glenelg River Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Grey hornblende-biotite tonalite, medium grained; porphyritic in hornblende; accessory magnetite, epidote, sphene and allanite. Numerous hornblende-rich mafic microgranitoid enclaves; magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Snake-Edwards Sandstone Member|22856|||||Yes|Member, phase|Formal|Resvd name published|Described|Murderers Hill Siltstone|22481|||Silurian||||deposition|Ludlow||||||220||No|23309||VandenBerg A.H.M., Willman C. & Hendrickx M.|23-JUN-94|||Within the Jordan River Group.|Siltstone, sandstone, rare black shale: deep-marine deposits.|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
Snowy Bluff Group|38819|Snowy Bluff volcanic sequence|34098|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Mississippian|||||Upper Devonian||||||||No|24053|||||||Volcanics|igneous volcanic rock|||N||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 Plains Formation|17054|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mansfield Group|28720|||Tournaisian||||deposition|Famennian||||deposition|2400|||No|43461||||||Formerly of Avon River Group, now of Mansfield Group [A.H.M. VandenBerg 22-MAY-2000] - in the Avon Supergroup. Geological Survey of Victoria map code: Dams. Reference to Fission Track dating at 272 +/- 35 Ma in GSV report 127 (2006), but unit reported as Early Carboniferous or older.|Mudstone, sandstone: red mudstone generally poorly bedded, sandstone pale-coloured, quartz-rich; upward-fining with  minor conglomerate near base.|siliciclastic sedimentary rock|||N||20-JUN-23
Snowy River Volcanic Group|28138|Snowy River Volcanics|17062|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Lower Devonian||||eruption|Lower Devonian|411|3|isotopic, U/Pb|||||No|38145||||||Used interchangeably with Snowy River Volcanics. 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. Unclear whether age is based on radiometric dating or stratigraphic relations.|Volcanic lava, pyroclastics and epiclastics. Feldspar-hornblende porphyry, coarse-grained, dark bluish green (fresh). Rhyolite: vitric with sparse feldspar and/or quartz phenocrysts, in places flow-banded, spherulitic.|acid volcanic rock|||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
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
Somerton granite|17096|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34992|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Speculation Ignimbrite|78972|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|66252||||||No definition details have been found/indexed yet (October 2014).|Ignimbrite.|acid volcanic rock|||N||17-JAN-23
Speewa Member|29013|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Woorinen Formation|20618|||Upper Pleistocene||||deposition|Chibanian|||||||VIC|No|70961|42966||||||||||N||17-JAN-23
Spion Kopje Quartz Diorite|30589|Spion Kopje Granodiorite|17170|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian|398|16|isotopic, K/Ar|intrusion|Lower Devonian|406|16|isotopic, K/Ar|||||No|43220||||||See also Spion Kopje Granodiorite. Ref 23309 = I-type, but Geology of Victoria (2003) = S-type. This unit and Rocky Valley Granodiorite combined as East Kiewa Granodiorite in Bogong 1:100k notes (GSV Rep125, 2005), but not on Nat Geol Maps Vic 2005.|Medium grained, equigranular, slightly foliated, I-type biotite quartz-diorite|acid intrusive rock|||Y||17-JAN-23
Spittle Gritstone Member|79356|||||Yes|Member, phase|Reserved|Reserved|Reserved|Glenthompson Sandstone|24290|||Middle Cambrian|||inferred, geochemical correlation|deposition|Middle Cambrian|||inferred, geochemical correlation|||||No|||Cayley, R. (GSV)|26-FEB-16|||Named after Spittle Road, which passes just north of the outcrop. Recognised as a distinct member within the Cambrian Glenthompson Sandstone, probably at or near the top. Marine turbidite. Multiple upward-fining beds. Comprises coarse-grained metre  - thick A-B 'bouma' sequences that are dominated by cm-sized angular fragments of mafic-intermediate volcanic and quartz vein detritus (probably derived from adjacent Mount Stavely Volcanic Complex), set in a finer matrix of smaller lithic fragments. Tabular cross-bedding in the coarsest beds indicates high-energy of deposition. Possibly evidence of base-surge? related to a nearby volcanic eruption. Member possibly represents a gradational unit between coeval Glenthompson Sandstone and Mount Stavely Volcanic Complex. To be published = Will be mentioned in a GA/GSV Record for the Stavely Project (mid-2016), and will gain formal definition in the GSV geological map and explanatory notes for the Willaura 1:100 000 sheet (late-2016).|Multiple upward-fining beds.Comprises coarse-grained metre  - thick A-B 'bouma' sequences that are dominated by cm-sized angular fragments of mafic-intermediate volcanic and quartz vein detritus), set in a finer matrix of smaller lithic fragments.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Split Hill Sandstone|24499|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Romsey Subgroup|37591|||Floian||||deposition|Tremadocian||||||75|VIC|Yes|40136|42826|VandenBerg, A.H.M.|04-JUL-79|Vic SNSC|26-SEP-79||Basal 16 m thick unit of thick-bedded sandstone and siltstone, a middle 31 m thick unit of black siliceous shale, and a 15 m thick upper unit of interbedded sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Spring Creek Sandstone Member|30543|Spring Creek Member|17193|||Yes|Member, phase|Formal|Variation of published name|Described|Buchan Caves Limestone|2750|||Pragian||||deposition|Pragian||||||||No|43206||||||Murrindal area.|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Spring Hill Complex|73175|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Pliocene|||||Pliocene|4.35|||||||No|61896||||||See also the informal Spring Hill trachyandesites.|||||N||17-JAN-23
Springfield Sandstone|26146|Springfield Formation|17213|||Yes|Formation, beds|Formal|Variation of published name|Defined|Murrindindi Supergroup|35522|||Wenlock||||deposition|Llandovery||||||980|VIC|No|41570|42826|||||Unit distinguished at 1:50 000 scale. Combined with Chintin Formation at 1:250 000 scale. Formerly considered part of Keilor Group/Jackson Creek Group.|Packages of medium to thick-bedded lithic quartz sandstone interbedded with siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Springfield Sandstone, Chintin Formation, Wapentake Formation|79967|Springfield Formation, Chintin Formation, Wapentake Formation|37693|||Yes|Formation, beds|Informal|Variation of published name|Not recorded|||||Wenlock||||deposition|Llandovery||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project.|Marine turbiditic sandstone, mudstone, mass-flow deposits|siliciclastic sedimentary rock|||N||17-JAN-23
Staggs Creek Granite|17238|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Devonian||||||||No|42726||||||Briefly described. Formal name not intended|Granite|acid intrusive rock|||Y||17-JAN-23
Staircase Ignimbrite|68447|||||Yes|Member, phase|Formal|Variation of published name|Defined|Rose River Volcanics|68479|||Frasnian||||eruption|Frasnian||||||250||No|66252|||||||Ignimbrite|acid volcanic rock|||N||17-JAN-23
Stanley Granite|17266|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Devonian||||intrusion|Devonian||||||||No|70910|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Statham Ignimbrite|22890|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Marroo Subgroup|22271|||Lower Devonian|||inferred, overlying unit|eruption|Ludlow|||inferred, underlying unit|||1700|VIC|No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area. Age inferred from overall Snowy River Volcanics [group] overlying and underlying units.|Quartz-feldspar ignimbrite with large phenocrysts and red pumice fragments: abundant lithic clasts near the base; minor sandstone, siltstone, breccia, feldspar ignimbrite.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Stauro Gully Shale|24504|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Romsey Subgroup|37591|||Floian||||deposition|Tremadocian||||||35|VIC|Yes|40136|42826|A.H.M.VandenBerg, H.E.Wilkinson|03-APR-78|Vic SNSC|26-SEP-79||Sandstone, siltstone, shale, chert.|fine grained siliciclastic rock|||N||17-JAN-23
Stauro Gully Shale, Split Hill Sandstone, Bryo Gully Shale 79702|79702|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Romsey Subgroup|37591|||Lancefieldian||||deposition|Lancefieldian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol Ocr2.|Sandstone, siltstone, shale, chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Stawell Granite|17308|Stawell Granodiorite|32455|||Yes|Formation, beds|Formal|Other new published name|Described|||Ararat Suite|28331|Lower Devonian|396|5||intrusion|Lower Devonian|413|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|34990||||||Not related to Stawell granite (QLD). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G379|Pale, medium to coarse grained, hornblende-biotite granite; occasional diorite, granodiorite and hornfels xenoliths; weakly foliated; oxidised.|acid intrusive rock|||Y|I-type|17-JAN-23
Steep Bank Greywacke Member|41181|||||Yes|Member, phase|Formal|Other new published name|Defined|Nangeela Formation|41179|||Early Cambrian||||deposition|Early Cambrian||||||||No|50160|50154||||||Greywacke and sandstone; quartzose, feldspar-lithic and quartz-feldspar-lithic types; graded beds up to 30 cm thick.|siliciclastic sedimentary rock|||N||17-JAN-23
Stockdale Conglomerate Member|23993|||||Yes|Member, phase|Formal|Resvd name published|Defined|Springfield Sandstone|26146|||Llandovery||||deposition|Llandovery|||||||VIC|No|41585|42826|VandenBerg, A.H.M.|08-OCT-84||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Stoddart Member|30576|||||Yes|Member, phase|Formal|Resvd name published|Defined|Mount Ida Formation|27504|||Lochkovian||||deposition|Lochkovian||||||1100||No|61185|60599|VandenBerg, A.H.M.|29-OCT-96|||Correlates with the upper 2 units of Mount Ida Beds of Thomas (1937) - the mudstone-shale-conglomerates section, and the Pleurodictyum Beds.|Interbedded laminated mudstone, shale, fine-grained sandstone and conglomerate; laminated to thinly bedded; shelly fossils (60592).|siliciclastic sedimentary rock|||N||17-JAN-23
Stonefish Sandstone Member|39337|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Kingfish Formation|32298|||Paleocene||||deposition|Paleocene||||||||No|13323||||||Within the Kingfish Formation (Halibut Subgroup, Latrobe Group). A much-reproduced stratigraphic diagram of Bernecker and Partridge (2001) suggests this unit is of the Barracouta Formation.|Interbedded sandstone, siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Stonehenge Ignimbrite|29694|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Little River Subgroup|22204|||Pragian||||eruption|Pragian||||||300||No|43312||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Orbost mapping project. Of Snowy River Volcanics.|Feldspar and vitric feldspar ignimbrite: variably welded and in parts pumiceous, green to pale grey; vitriclastic pumiceous sandstone; pyroclastic and marine mass-flow deposits.|acid volcanic rock|||N||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
Strathbogie Granite - aplite phase 79672|79672|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Strathbogie Granite|17408|Upper Devonian||||intrusion|Upper Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G217a.|Massive grey aplite, quartz-feldspar-biotite with some cordierite; black tourmaline-rich nodules present locally.|acid intrusive rock|||Y||17-JAN-23
Strathbogie Igneous Complex|17410|||||Yes|Group, Suite|Formal|Unknown or process pending|Described|||Strathbogie Suite|25496||||||||||||||No|70933||||||Possibly equivalent to the Strathbogie Suite?|||||Y||17-JAN-23
Strathbogie Suite|25496|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42827||||||When frirst described, comprised the Trawool & Strathbogie Adamellites plus the Barjarg Adamellite. Currently comprises the Barjarg & Strathbogie Granites (and/or the Strathbogie igneous Complex?)  and the Violet Town Volcanics.|S-type Granite.|acid intrusive rock|||Y||17-JAN-23
Strathbow Granodiorite|36149|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Wohlt K.  GSV  Kylie.Wolht@nre.vic.gov.au|19-JUL-01|||Edenhope 1:100 000 sheet area (7123), SJ54-03.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Strzelecki Group|17440|Cape Paterson Beds|3516|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Albian||||deposition|Barremian||||||3000||No|48631||||||Of Medwell (1954). Name considered to be a junior synonym for Otway Group (VandenBerg et al. 2006 and VandenBerg 2008, 2009) for all the Early Cretaceous clastic sedimentary rocks in the Otway, Bass and Gippsland Basins. Because of its entrenched nature in the petroleum industry, the name (Strzelecki Group) is retained for the Early Cretaceous equivalent of the Otway Group in the Gippsland Basin. Group units act as seal for reservoir rocks. Also contains black coal (East Gippsland).|Interbedded non-marine greywackes, mudstones, sandstones, conglomerates, minor coals and volcanics.|siliciclastic sedimentary rock|||N||10-JUL-23
Sturgess Point Member|34699|||||Yes|Member, phase|Formal|Other new published name|Described|Mepunga Formation|11654|||Lutetian||||deposition|Lutetian||||||23||No|61182|||||||Mudstone|siliciclastic sedimentary rock|||N||17-JAN-23
Sturgess Sand|78584|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Holocene|.01||isotopic, radiocarbon|deposition|Pleistocene|.02||isotopic, radiocarbon||.5|1||No|68991||||||Of Gill (1965); Shoemaker and Uhlherr (1999). Published in 2013 article which also publishes for first time reserved names Dog Trap Bay Sand and Cove Sand.|Comprises a mostly fine-grained eolian deposit. Displays a humus podsol soil profile with scattered ferruginous pisolites and fragments of ironstone (ferruginous sand), and a weakly cemented clayey sand at the base forms a hardpan when dry.|regolith|||N||17-JAN-23
Suggan Buggan Granodiorite|17505|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Bullenbalong Suite|2895|Wenlock||||intrusion|Llandovery||||||||No|41850||||||This unit is called the Ingebyrah Granodiorite in New South Wales. Age and lithology updated from GSV data (HG, Dec 2005).|Biotite-cordierite granodiorite: coarse grained, quartz phyric; S-type |acid intrusive rock|||Y|S-type|17-JAN-23
Sunbury Group|33256|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Hirnantian||||deposition|Sandbian|457||inferred|||||No|61187||VandenBerg, A.H.M.|07-JAN-99|||Used in the Tasman Fold Belt System in Victoria Special Publication. For the Upper Ordovician sequence northwest of Melbourne (Riddell Sandstone, Bolinda Shale & probably also Darraweit Guim Mudstone). Age: 372+/-6 Ma (Foster et al., 1998).|Shale, sandy shale, minor sandstone and mudstone.|siliciclastic sedimentary rock|||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
Sunnyside Sand|29031|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Bridgewater Formation|2543|||Pleistocene||||deposition|Pleistocene||||||||No|34993||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Sand|sediment|||N||17-JAN-23
Surveyors Creek Suite|37872|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Silurian||||intrusion|Silurian||||||||No|24145|||||||Tonalite|acid intrusive rock|||Y||17-JAN-23
Sutherland Creek Sand|17559|Sutherland Creek Sand Member|17558|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Oligocene||||deposition|Oligocene||||||||No|37385||||||Originally referred to as Sutherland's Creek Sands Member (of Lower Maude Formation) in Bowler, 1963. Later named Sutherland Creek Sand Member (of Maude Formation) by Abele (1976). Proposed to be raised to Formation status as Sutherland Creek Sand/Sandstone by VandenBerg (2009), and shown as Sutherland Creek Sand in figures.|Well-sorted and well-rounded, very pure quartz sand: beach deposit.|regolith|||N||17-JAN-23
Swifts Creek Igneous Complex|34974|||||Yes|Subgroup|Formal|Other new published name|Briefly described|||Rileys Creek Suite|34904|Lower Devonian|402|4||intrusion|Late Silurian|408|2||||||No|22968|||||||Granite, Granoodiorite, Tonalite, Diorite|acid intrusive rock|||Y||17-JAN-23
Swordfish Formation|39334|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Latrobe Valley Subgroup|39333|||Chattian||||deposition|Rupelian||||||||No|13323|||||||Interbedded marl and glauconite; hemipelagic fossiliferous mudstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Sykes Tuff|37603|Sykes Ashstone|30552|||Yes|Member, phase|Formal|Variation of published name|Described|Little River Subgroup|22204|||Pragian||||eruption|Lochkovian||||||300||No|23309||||||Possibly to replace Sykes Ashstone?|Breccia, thinly bedded vitric ash, fine sandstone, with accretionary lapilli.|igneous rock|||N||17-JAN-23
Tabberabbera Formation|17618|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Wentworth Group|19739|||Lower Devonian||||deposition|Lower Devonian||||||||No|43871||||||Geological Survey of Victoria map code: Dwt.|Siltstone; sandstone: arkosic to quartz arenite; mudstone; minor limestone. Shallow-marine deposits|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tabor Volcanics|37604|||||Yes|Formation, beds|Formal|Variation of published name|Described|Dartella Volcanic Group|23535|||Middle Devonian||||eruption|Lower Devonian||||||200||No|60503||||||Not recognised originally.  Magnetics suggest Tabor Volcanics may partly be Murtagh Creek Ignimbrite.|Lava and volcanogenic sediments: basaltic andesite, dark blue-green, minor unwelded felsic ignimbrite and tuff (60505). Basaltic andesite lava.  Ignimbrite is crystal-rich - dark with eutaxitic foliation.  Highly magnetic.|igneous volcanic rock|||N||17-JAN-23
Taggerty Subgroup|17652|Taggerty Group|17650|||Yes|Subgroup|Formal|Unknown or process pending|Described|Marysville Igneous Complex|11424|||Upper Devonian|||||Upper Devonian||||||||No|33602|||||||Felsic ignimbrites, basalt and andesite lavas, conglomerate, sandstone.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Tailor Creek Tonalite|22936|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Glenlogie Suite|7426|Lower Devonian||||intrusion|Lower Devonian||||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg.|Hornblende tonalite: mafic, medium to coarse grained; light green to dark greenish grey; speckled appearance; some parts very rich in hornblende (43260)|acid intrusive rock|||Y|I-type|10-SEP-23
Tait Sandstone|39634|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Talbot Drive Granodiorite|17667|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|42154|||||||Granodiorite|acid intrusive rock|||Y||17-JAN-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
Tallangatta Porphyry|72967|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||eruption|||||||||No|61186||||||Dimension stone - name therefore probably informal. See also Tallangatta porphyry.|Occurs as acid dykes. Rock from red-brown to green, with classic porphyritic texture with large cream to white rhombic-shaped feldspars, often zoned with white cores, and corroded quartz set in a finer grained matrix.||||N||17-JAN-23
Tally Ho Quartz Diorite|17710|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|33598||||||Not related to NSW or Qld units.|Quartz Diorite|intermediate intrusive rock|||Y||17-JAN-23
Tambo Crossing Tonalite|34811|Tambo Crossing Granodiorite|17728|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Ensay Suite|34902|Lower Devonian|402|12||intrusion|Lower Devonian|402|12||||||No|44185||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G134|Highly to intensely magnetic, pale grey, medium to coarse grained, I-type, biotite-hornblende tonalite; igneous foliation defined by long prismatic hornblende crystals.|acid intrusive rock|||Y|I-type|05-SEP-23
Tambo River Formation|26924|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Seaspray Group|16717|||Messinian|5.3||stable isotopes|deposition|Tortonian|||inferred, biostratigraphic correlation||110|300||No|48631|||||||Strandplain sediments consisting of glauconitic and phosphatic marls and glauconitic sandy coquinas.|carbonate sedimentary rock|||N||17-JAN-23
Tamboon Road Granite|77280|Tamboon Granite|17742|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|68115||||||VandenBerg, 1999. Name changed to Tamboon Road Granite to avoid confusion: Tamboon township lies within Everard Granite, but the unit in question is crossed by the Tamboon Road, after which it is thus named.|Biotite granite: pinkish, equigranular, felsic; I-type granite, unfractionated.|acid intrusive rock|||Y|I-type|17-JAN-23
Tamboon Suite|17743|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Bemboka Supersuite|1449|Lower Devonian||||intrusion|Lower Devonian||||||||No|42827||||||See Tamboon Road Granite. Does this one-pluton Suite need to be retained?|Granite|acid intrusive rock|||Y||17-JAN-23
Taminick Gap Granite|17751|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G204|Biotite granite: very coarse grained, pale grey; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Tan-Y-Bryn Granite|37783|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Paleozoic||||intrusion|Paleozoic||||||||No|23309||||||New name for granite in the Willaura 1:100K map area. Named after Tan-Y-Byrn, a property in the area. Age updated from GSV data (HG, Dec 2005)|Granite|acid intrusive rock|||Y||17-JAN-23
Tanjil Granodiorite|37782|Tanjil Granite|17787|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian||||||||No|44187||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G237|Granodiorite: medium grained, equigranular, hornblende-bearing.|acid intrusive rock|||Y|I-type|17-JAN-23
Taparoo Sandstone|27581|Taparoo Formation|17807|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Millewa Group|28128|||Aptian||||deposition|Aptian|||||||VIC|No|31745|42966||||||Sandy brown clay, fine-grained mature quartzose sandstone, fine- to medium-grained bimodal poorly sorted sand with traces of pyrite, blue-grey clay with gypsum.|siliciclastic sedimentary rock|||N||17-JAN-23
Tara Range Subgroup|30050|Mount Tara Subgroup|29697|||Yes|Subgroup|Formal|Resvd name published|Described|Snowy River Volcanic Group|28138|||Pragian||||deposition|Pragian||||||900||No|60542||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|01-SEP-95|||Reserved as Mount Tara Subgroup. Orbost mapping project. Previously included the Fainting Range Ignimbrite (now part of Mount Elizabeth Caldera Complex). Now includes Yellow Waterholes Ignimbrite (previously of Little River Subgroup)|Quartz ignimbrite: crystal rich, medium to coarse-grained, red, densely welded; minor volcanigenic sediments including mudstone and sandstone with accretionary lapilli, tabular cross-bedded sandstone; pyroclastic and epiclastic rocks.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Taravale Marlstone|30542|Taravale Formation|17840|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buchan Group|2754|||Emsian||||deposition|Emsian||||||3000||No|43206|||||||Impure limestones, mudstone and nodular limestone; marine.|carbonate sedimentary rock|||N||18-SEP-23
Tarlton Granite|17856|||||Yes|Formation, beds|Formal|Other new published name|Described|||Tarlton Suite|31647|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Use to be extended by GSV to include all of a body known informally as McCulloch Granite as well as Chappell and White's Tarlton Granite. Small part of this unit previously  "Tarlton Granodiorite". Updated from GSV data (HGDec05). GSV Code: G41|Medium to coarse grained I-type biotite granite with hornblende, biotite / muscovite, high internal variability.|acid intrusive rock|||Y|I-type|17-JAN-23
Tarlton Suite|31647|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Tarnagulla Granodiorite|35567|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Mount Cole Suite|28790|Middle Devonian|391|5|isotopic, K/Ar|intrusion|Middle Devonian|396|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|23260||||||In spite of Tarnagulla Granite being listed as the preferred name for this unit by GSV in 2009, for their seamless geology project, Tarnagulla Granodiorite reappears in the 1:250 000 Surface Geology of Victoria (2011), and again in the 2014 version.|Hornblende-biotite granodiorite: medium grained; minor pegmatite and aplite; variably magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Tarra River Formation|24012|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|38929||B.R.Thompson, G.Walker|14-DEC-81||||||||N||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
Tarraville Member|24014|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|38929||VandenBerg, A.H.M.|25-AUG-82||||||||N||17-JAN-23
Tarringo Sandstone|17872|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34449|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Tatong Chert|17893|Tatong chert|17895|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|70933|||||||Chert|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Tawonga Gravels|17904|Tawonga Gravel|17903|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Chibanian||||deposition|Piacenzian||||||||No|70910|||||||Gravels|sediment|||N||17-JAN-23
Taylors Crossing Tonalite|30587|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Boggy Plain Supersuite|2092|Silurian|||||Silurian||||||||No|43220||||||Tallangatta 1:250 000 sheet area. See also Taylor Crossing Granite, Taylors Crossing Granite and Taylor Crossing Tonalite. Original name has been restored, see  Morand (2011) 68115.|Biotite tonalite: grey; medium-grained; weakly foliated; occasional metasedimentary enclaves.|acid intrusive rock|||Y|S-type|05-SEP-23
Tchum pluton|83412|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||Used in RefID 73496 Moore (2005). G606. Granite, oxidised I-type; moderately magnetic (to 70 nT); gravity low to 80 micrometres/second/second below adjacent metasediments.|Granite, oxidised I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Teapot Creek Formation|34827|Teapot Creek Volcaniclastics|30289|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Mount Leinster Igneous Complex|26764|||Triassic||||deposition|Triassic||||||100||No|60503||||||Reserved as Teapot Creek Volcaniclastics. Metamorphosed.  Intruded by Mole Hill Syenite.|Volcanigenic sandstone, conglomerate, breccia: marked variation from place to place; minor trachyte lava.|intermediate volcanic rock|siliciclastic sedimentary rock||N||28-AUG-23
Teddy Bear Conglomerate Member|30440|||||Yes|Member, phase|Formal|Resvd name published|Described|Serra Sandstone|30439|||Silurian||||deposition|Silurian||||||15||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. Part of Mount Difficult Subgroup (Grampians Group).|Polymictic conglom: pale grey, poorly sorted + open framework with abundant bedrock clasts of angular dk slate + sub-rounded vein qtz+minor sub-rounded, cleaved and veined, med-gr. qtz.sst; laminated and x'lam'd; matrix of coarse-gr. pebbly qtz.sst.......|siliciclastic sedimentary rock|||N||17-JAN-23
Teddywaddy Granite|17920|||||Yes|Formation, beds|Formal|Other new published name|Described|||Glenloth Suite|37620|Middle Devonian|390|6|isotopic, K/Ar|intrusion|Lower Devonian|398|6|isotopic, K/Ar|||||No|42726||||||Non-magnetic; gravity response lower than the host metasediments; K is relatively high over outcrop, Th lower and U similar to surrounds. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G335|Non-magnetic biotite cordierite granite: S-type, reduced; medium grained, weakly porphyritic; small rounded mafic enclaves up to 1cm in diameter|acid intrusive rock|||Y|S-type|17-JAN-23
Telbit Sandstone Member|17927|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Coopers Creek Formation|26492|||Emsian||||deposition|Pragian||||||450|VIC|Yes|35283||VandenBerg, A.H.M.|04-FEB-74|||Telbit Sandstone Member (of the Coopers Creek Formation, Philip, 1962, Proc. Roy. Soc. Vict v.75, p.127).|Medium to thick-bedded fine to coarse sandstones, and gritstones, with some pebble conglomerates and limestones, and interbedded siltstones|siliciclastic sedimentary rock|||N||17-JAN-23
The Bluff member|18035|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33156|||||||||||N||17-JAN-23
The Sisters Granite Porphyry|25526|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|23710|||||||Granite Porphyry|acid intrusive rock|||Y||17-JAN-23
Thermopylae Conglomerate|30430|||||Yes|Formation, beds|Formal|Resvd name published|Described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||300||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Polymictic conglom; pale grey, poorly sorted and variably rounded with open framework of bedrock clasts of vein quartz and veined, quartz sandstone; coarse-grained quartz-feldspathic sandstone matrix .|siliciclastic sedimentary rock|||N||17-JAN-23
Thiele Igneous Complex|37274|Thiele igneous complex|37269|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Middle Cambrian||||intrusion|Early Cambrian||||||||No|23309|||||||Variably serpentinised peridotite and dunite intrusions; rare mafic volcanic rock|ultramafic 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
Thomson Siltstone|18076|Thomson River Limestone Beds|18075|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|37727||||||Not related to Thomson beds. Is this unit still current?|Siltstone|siliciclastic sedimentary rock|||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
Thorkidaan Volcanics, Mitta Mitta Rhyolite|37697|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Pridoli||||eruption|Ludlow||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Thorkidaan Volcanics are part of the Enano Group but Mitta Mitta Rhyolite is not.|Extrusive and high level intrusive rhyolite and lesser dacite; volcaniclastic conglomerate, sandstone and siltstone; volcanic breccia, vitric tuff|acid volcanic rock|||N||17-JAN-23
Thorpdale Volcanic Group|76919|Thorpdale Volcanics|27912|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Miocene|22|||eruption|Eocene|49|||||||No|66244||||||First shown on Warragul 1:250 000 Geological map (Geological Survey of Victoria, 1971) as Thorpdale Volcanics. Covers a large area around the Strzelecki Ranges. Apparently continuous in outcrop and magnetic data with Carrajung Volcanic Group to the east; their boundary is arbitrary. Previously included in the Older Volcanics Group.|Tholeiitic and alkali basalt, minor nephelinite, basanite, nepheline hawaiite, hawaiite, nepheline mugearite, mugearite, tuff and interbedded sandstone and silcrete.|basic volcanic rock|sedimentary rock||N||17-JAN-23
Thowgla Creek Granite|37785|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G569|Nonmagnetic, brownish grey, medium to coarse grained, S-type, biotite-cordierite granite; mostly porphyritic in K-feldspar|acid intrusive rock|||Y|S-type|17-JAN-23
Thurra Granodiorite|18109|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|41850||||||Probably superseded - see Thurra Granite.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
Thylacine Member|79581|Thylacine Sandstone Member""|79252|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Belfast Mudstone|1415|||Santonian||||deposition|Santonian||||||||No|69879||||||Apparently a formalisation of  "Thylacine Sandstone Member" (unit no. 79252), but shown as member of Belfast Formation rather than current Belfast Mudstone. No definition has yet (2016) been indexed.|Fluvio-deltaic sandstone. Hydrocarbon reservoir.|medium-coarse grained siliciclastic rock|||N||16-OCT-23
Tiac Granite|18118|Mount Emu Granite|12694|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Beckworth Suite|1351|Upper Devonian|360|5|isotopic, K/Ar|intrusion|Middle Devonian||||||||No|42726||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G307. See also Mount Emu Granodiorite as described in Skipton Explan Notes. Radiometric date, some relationships, from these notes. Mount Emu has been used for two different units in Victoria.|Coarse-grained equigranular biotite granite; cream coloured.|acid intrusive rock|||Y|I-type|17-JAN-23
Tildesley Sandstone|18150|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||deposition|||||||||No|41511|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Timbarra Subgroup|30554|Timbarra Formation|18158|||Yes|Subgroup|Formal|Variation of published name|Fully described|Snowy River Volcanic Group|28138|||Pragian||||deposition|Lochkovian||||||||No|43206||||||Murrindal area.|Subaerial and marine conglomerate, ignimbrite, turbiditic volcaniclastic sandstone, black mudstone, lava|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Timboon Sandstone|26944|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Sherbrook Group|16826|||Maastrichtian||||deposition|Campanian||||||1590||No|42361||||||Supersedes all former Timboon nomenclature, including Timboon Sandstone Member, Timboon Sand, Curdies Formation and Curdies Beds, Timboon Sand and Timboon Sand Member (as per 63124). Considered to be part of Paaratte Formation in Victoria.|Sandstone. Fine to very coarse-grained sandstones, lacks bioturbated horizons and contains leaf fossils;floodplain claystones and some coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Timms Spur Leucogranite|69415|Timms Spur Granite|18182|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61164||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G156. Age updated from GSV data (HG, Dec 2005). Intrudes the migmatite of Omeo Metamorphic Complex and the Cobungra Granite.|Muscovite-biotite leucogranite: medium grained; equigranular; non-magnetic; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Tin Pot Ignimbrite|34871|||||Yes|Formation, beds|Formal|Other new published name|Described|Avonmore Subgroup|34825|||Pragian||||eruption|Lochkovian||||||120||No|22968||||||Within the Snowy River Volcanics.|Feldspar and quartz ignimbrite: commonly with very low quartz content; generally weathered and poorly exposed.|acid 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
Tobacco Creek Andesite|23015|||||Yes|Formation, beds|Formal|Resvd name published|Described|Jamieson Volcanic Group|73609|||Late Cambrian||||eruption|Middle Cambrian|500|8|isotopic, U/Pb-Pb/Pb, TIMS|||||No|23309||VandenBerg, A.H.M.|30-JUN-94|||Previously of Licola Volcanic Group.|Andesite lava, andesite breccia, volcanogenic sandstone, limestone; marine lavas and volcaniclastics.|intermediate volcanic rock|sedimentary rock||N||17-JAN-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
Tolmie Igneous Complex|26950|Tolmie Complex|18277|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Middle Devonian||||eruption|Middle Devonian||||||||No|32001||||||Same as Tolmie Complex. Geological Survey of Victoria map code: Dt.|Subaerial caldera volcanics: rhyolitic to dacitic ignimbrite, minor lava; fluvial conglomerate, sandstone.|acid volcanic rock|||Y|S-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
Tom Groggin Tonalite|30581|Tom Groggin Granite|18283|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Tom Groggin Suite|18286|Silurian||||intrusion|Silurian||||||||No|43220||||||G89. Note that the Tom Groggin Granite proposed by Chappell et al (1991) is the Green Hills Granodiorite, and is a different body to the Victorian Tom Groggin Granite/Tonalite.|Nonmagnetic, grey, medium to coarse grained, slightly porphyritic, S-type biotite granite|acid intrusive rock|||Y|S-type|17-JAN-23
Tomato Creek Ignimbrite|37607|Tomato Creek Ignimbrite|37607|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Tara Range Subgroup|30050|||Pragian||||eruption|Pragian||||||||No|60542||||||Reserved as Tomato Track Ignimbrite.|Quartz ignimbrite: crystal rich, medium to coarse-grained, red, generally densely welded and with well developed eutaxitic foliation, rheomorphic at base; contains Ordovician-derived lithic fragments; pyroclastic deposits.|acid volcanic 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
Tommy Roundhead Granodiorite|18327|Errinundra Granodiorite|6249|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock||||intrusion|Llandovery||||||||No|41572||||||GSV Code: G35. Age and lithology updated from GSV data (HG, Dec 2005). Replaces Errinundra Granodiorite to avoid duplication of the name already preoccupied by Errinundra Beds, now superseded by Errinundra Group.|Biotite granodiorite and tonalite: medium grained, porphyritic, grey, variably foliated; contains abundant biotite schist enclaves as well as enclaves of hornblende-biotite diorite; I-type.|acid intrusive rock|||Y|I-type|02-AUG-23
Tongaro Formation|34874|Tongaro Sandstone|18330|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Yalmy Group|20777|||Pridoli||||deposition|Llandovery||||||||No|60503||||||Formerly of the Wombat Creek Group. Supersedes Tongaro Sandstone. In type section is separated from other members of the Wombat Group by Newlands Fault.  Age is Late Silurian in BENAMBRA report (60503).|Quartzitic turbidites interbedded with mudstone; quartzites medium to fine grained, green and brown, cleaved (60505).  Lithology in type section: alternating packages of sandstone (weakly magnetic) and mudstone; plus a series of limestone lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Tonghi Granodiorite|18335|Tonghi Granite|18334|||Yes|Formation, beds|Formal|Variation of published name|Described|||Tonghi Suite|18336|Lower Devonian||||intrusion|Late Silurian||||||||No|41850||||||Of the Bega Batholith. Rounded tors. Age and lithology updated from GSV data (HGDec05). GSV Code: G12|Pale grey, medium to coarse grained, massive, slightly quartz-phyric, biotite-hornblende granodiorite; hornblende-bearing western half and hornblende-poor eastern half.|acid intrusive rock|||Y|I-type|17-JAN-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
Tongio Munjie Volcanics|34897|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|22968|||||||Volcanics, Ignimbrite|acid volcanic rock|||N||17-JAN-23
Tongio Tonalite|77889|Tongio Quartz Diorite|32567|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|68116||||||Same GSV number (G541) as Tongio Quartz Diorite. Different number to Tongio Gap Tonalite,  Mungobabba Tonalite (G143). Misspelling or deliberate change?|Tonalite: mid- to dark grey; fine-grained equigranular; massive; minor quartz diorite and hornblende-rich gabbro.|acid intrusive rock|basic intrusive rock||Y||17-JAN-23
Toole-be-wong Granodiorite|37608|Mount Toole-be-wong Granite|13147|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian||||intrusion|Upper Devonian|371|13|isotopic, K/Ar|||||No|44187||||||See also misspelling Toole-Be-Wong Granodiorite.|S-type granodiorite|acid intrusive rock|||Y|S-type|17-JAN-23
Toolondo Volcaniclastics|40706|||||Yes|Formation, beds|Formal|Other new published name|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||||No|23309|50154|||||Our earliest reference is in VandenBerg et al. (2000) p.8; this unit's name does not appear in references, there and elsewhere, to Simpson (1997). It is further described by Simpson in Morand et al. (2003).|Feldspar-phyric ignimbrite: pumice-rich, non-welded; bedded pyroclastic surge deposits; alternating pumice-crystal-rich layers and finer grained accretionary lapilli rich layers, planar and low angle cross-stratification.|acid volcanic rock|||N||17-JAN-23
Tooloonook Gravel Formation|18400|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|38929|||||||Gravel|siliciclastic sedimentary rock|||N||17-JAN-23
Toombullup Ignimbrite|35141|Toombullup Rhyodacite|18403|||Yes|Formation, beds|Formal|Variation of published name|Described|Tolmie Igneous Complex|26950|||Upper Devonian|377|2|isotopic, U/Pb|eruption|Upper Devonian||||||700||No|22971||||||In the Wangaratta Area. Has probably superseded Toombullup Rhyodacite? Intruded by the Lima pluton dated at 366 +/- 7 Ma (Rb-Sr; Richards and Singleton, 1981).|Recrystallized rhyolitic/rhyodacitic ignimbrite: coarse; abundant phenocrysts of quartz, feldspar, biotite, garnet and, locally, enstatite; schlieren of granodiorite porphyry occur; contains lithic fragments of hornblende granodiorite.|acid volcanic rock|||N|S-type|17-JAN-23
Toongabbie Limestone|18407|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33408|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Toora gravels|33956|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Neogene||||deposition|Cenozoic||||||||No|22495|||||||Gravels|sediment|||N||17-JAN-23
Toorongo Granodiorite|27588|Toorongo granodiorite|18411|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Tynong Suite|18760|Upper Devonian||||intrusion|Upper Devonian||||||||No|33602||||||See also the informal Toorongo Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G238. See also Toorongo biotite, age: 371+/-12 Ma (Richards and Singleton, 1981).|Medium, even-grained, I-type hornblende-bearing granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Toort pluton|83438|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G662. Weakly to moderately magnetic core (responses mostly less than 30 nT) surrounded by strongly magnetic rim (responses to 200 nT); gravity response about 20 micrometres/second/second higher than surrounding plutons.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Torah Granodiorite|29547|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Cambrian||||intrusion|Cambrian||||||||No|42971|50154|||||Part of the Glenelg River Metamorphic Complex. Age and lithology updated from GSV data (HG, Dec 2005)|Light grey biotite granodiorite: foliated, fine to medium grained, equigranular; accessory magnetite and epidote; weakly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Torbreck Range Andesite|18428|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Taggerty Subgroup|17652|||Upper Devonian||||eruption|Upper Devonian||||||||No|35277|||||||Andesite|intermediate volcanic rock|||N||17-JAN-23
Torquay Group|18441|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Miocene||||deposition|Oligocene||||||1000||No|70942||||||Also includes Gellibrand Marl which has replaced Fyansford Clay in Torquay Group. Gellibrand Marl is also part of  Heytesbury Group.|Sandstone, shale, then shallow-marine calcarenite; limestone, clayey limestone, marl and calcareous clay.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Torrent Gravels|18451|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37127|||||||Gravels|sediment|||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
Touzells Granodiorite|37786|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005).|Biotite granodiorite: dark grey, medium grained, minor amphibole; equigranular interior and porphyritic margin; I-type; moderately magnetic|acid intrusive rock|||Y|I-type|06-SEP-23
Towanga Sandstone|27245|Towanga Formation|18497|||Yes|Formation, beds|Formal|Variation of published name|Defined|Yalmy Group|20777|||Telychian||||deposition|Llandovery|||||||VIC|No|38145|39447|||||Defined 1984 as late Wenlockian, shown as Llandovery on 1993 Murrindal map. Conformably/disconformably overlies Blueys Creek Formation. Geological Province: Limestone Creek Graben.|Marine terrigenous clastics formed in submarine fan ; quartz-sandstone turbidites and siltstones, chert pebble conglomerates and minor rhyolites.|siliciclastic sedimentary rock|||N||17-JAN-23
Towanway Tuff|24532|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Stavely Volcanic Complex|13108|||Late Cambrian|495|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Middle Cambrian|503.9|4.2|isotopic, U/Pb-Pb/Pb ion probe||||VIC|Yes|38436|40887|G.L.Buckland|08-FEB-82||||Dacitic crystal lithic volcanic sandstone. Minor laminated chert, volcanic siltstone.|acid volcanic rock|||N||06-SEP-23
Tower Hill Tuff|18502|Tower Hill Volcanics|18504|||Yes|Formation, beds|Formal|Other new published name|Described|||||Holocene||||eruption|Pleistocene||||||||No|30989|||||||Pyroclastic rocks with basaltic and sedimentary clasts; ash and lapilli with scattered blocks and bombs; well layered with planar to diffuse bedding; common cross-bedding and climbing ripples.|basic volcanic rock|||N||17-JAN-23
Towma pluton|83441|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G654. Largely nonmagnetic but with outer rim to 100 nT; gravity response 100 micrometres/second/second lower than surrounds.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Towzer Creek Granite|18524|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Towzer Creek Suite|31642|Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Of the Bete Bolong Suite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G58|Foliated, medium grained biotite, muscovite, andalusite granodiorite with numerous schistose enclaves; S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Towzer Creek Suite|31642|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Granite|acid intrusive rock|||Y||17-JAN-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
Traralgon 0 coal seam|83096|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Traralgon Formation|18553|||Rupelian|||biozone||Rupelian|||biozone|||||No|73289|||||||||||N||17-JAN-23
Traralgon 1 coal seam|83173|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Traralgon Formation|18553|||Priabonian|||inferred, biostratigraphic correlation||Priabonian|||inferred, biostratigraphic correlation|||||No|73289||||||Middle part of Traralgon Formation.|||||N||17-JAN-23
Traralgon 2 coal seam|83097|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Traralgon Formation|18553|||Bartonian|||biozone||Lutetian|||biozone|||||No|73289|||||||||||N||17-JAN-23
Traralgon Formation|18553|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Latrobe Valley Group|10224|||Rupelian|||biozone|deposition|Lutetian|||biozone|||||No|31352||||||Dated by palynology.This unit is called Burong Formation offshore and Traralgon Formaiton onshore. Gurnard Formation is a marine lateral equivalent of both, at least in part.|Coarser-grained sandstones and conglomerates at the base; coals and shales in the middle; sandstones, shales and minor coals near the top.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Traralgon Seam|18555|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Burong Formation|32302||||||||||||||||No|31045|||||||||||N||17-JAN-23
Trawalla Granite|23042|Barralin Granite|1162|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|43260||Cayley R.|21-JUN-93|||Reservation requested by A. VandenBerg. See also Barralin Granite - name also used for same granite. GSV says both names are obsolete or invalid (2000) but NatMaps Victoria  uses Trawalla Granite in 2005, 2011. May have been incorporated into Tiac Granite??|Cream to pink, biotite granite; porphyritic; dominated by mildly perthitic K-feldspar crystals up to 25mm|acid intrusive rock|||Y||17-JAN-23
Trendale Formation|23045|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||900||No|43206||Orth K.|11-FEB-91|||Murrindal area.|Quartz-feldspar ignimbrite, ashstone, sandstone, siltstone, mudstone|acid volcanic rock|||N||17-JAN-23
Trentham basalt|18571|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|30271|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Triassic intrusive complexes 76701|76701|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Triassic|215|||intrusion|Middle Triassic|231|||||||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
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
Trident Arm Formation|24042|||||Yes|Formation, beds|Formal|Resvd name published|Mentioned|||||||||deposition|||||||||No|41511||A.N.Carter|23-DEC-77|||Mention in Carter (1985) after NLR Jan 83.|||||N||17-JAN-23
Trochocyathus bed|68431|||||Yes|Bed|Formal|Other new published name|Mentioned|Wangerrip Group|19406||||||||||||||||No|24551||||||Trochocyathus is correct spelling.|||||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
Tubbut Basalt|75955|Older Volcanics|14540|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Priabonian|||isotopic, K/Ar|eruption|Lutetian||||||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||Former Older Volcanic Group basalts near Tubbut and Bonang, and outliers 30 km to the southwest near Serpentine and Riddle Creeks. It is possible that the flow near Tubbut is different to the flow at Bonang, as the Tubbut occurrence is at 600 m elevation and the Bonang flow is at 800 m. Wellman (1974) included the basalt at Tubbut in the Gelantipy Province, and the basalt at Bonang in the Bonang Province.|Olivine tholeiite, olivine nephelinite and hawaiite|basic volcanic rock|||N||17-JAN-23
Tucker Creek Tonalite|69421|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61171||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G465. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite: medium-grained; contains quartz, plagioclase, biotite (replaced by chlorite and sphene) and relics of brown hornblende; alteration minerals include sericite, carbonate, epidote. I-type intrusion.|acid intrusive rock|||Y|I-type|17-JAN-23
Tullamarine Basalt|18657|Melbourne Volcanic Province|68405|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Burdigalian||||eruption|Aquitanian|20.5||isotopic, K/Ar|||||No|33604||||||Age: 20.5 Ma (Bowen 1975).|Lava flows: alkali olivine basalt.|basic volcanic rock|||N||17-JAN-23
Tullaroop Granodiorite|25558|||||Yes|Formation, beds|Formal|Other new published name|Described|||Harcourt Suite|8070|Frasnian||||intrusion|Frasnian|378|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|30579||||||See also the informal Tullaroop Granite and Tullaroop granodiorite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G315|Biotite +/- hornblende granodiorite: medium grained; equigranular to weakly porphyritic in plagioclase, quartz and K-feldspar; nonmagnetic phase at surface intruded by a magnetic phase at depth, nonmagnetic phase is reduced to oxidised I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Tulloch Ard Ignimbrite|18661|Tulach Ard|23059|||Yes|Formation, beds|Formal|Other new published name|Fully described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||900||No|41585||||||Murrindal area. Probably misspelling/variation of reserved name Tulach Ard.|Quartz-feldspar ignimbrite with lithic clasts of black shale and other older sediment: mostly densely welded.|acid volcanic rock|||N||17-JAN-23
Tuloona Granodiorite|33132|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|23319|50154|Kemp T.|13-NOV-98|||Western Victoria.  Age and lithology updated from GSV data (HG, Dec 2005). Defined by Kemp and Gray 1999. Their 'felsic' phase of this unit was renamed Awaiti Granite (Morand et al. 2003).|Light grey biotite granodiorite: massive to weakly foliated, medium to coarse grained, porphyritic with phenocrysts of quartz and microcline; accessory muscovite and magnetite; common mafic biotite-rich microgranitoid enclaves; also enclaves of migmatite|acid intrusive rock|||Y|I-type|17-JAN-23
Tumberluck Diorite|24049|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Ellery Suite|6097|Wenlock||||intrusion|Llandovery||||||||No|42627||VandenBerg A.H.M., Orth K.|22-MAR-89|||Previously entered in database as Timberluck Diorite. G28. Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende diorite: coarse to medium grained, dark green-grey; foliated; I-type |intermediate intrusive rock|||Y|I-type|17-JAN-23
Tungie pluton|83439|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G663. Confused magnetic response, but generally high in the west and nonmagnetic in the east; gravity response about 60 micrometres/second/second higher in the east than the west.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Tunstalls pluton|83435|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||G631. Possibly granodiorite; I-type, oxidised; magnetic response to 130 nT; gravity response about 10 micrometres/second/second lower than metasediments, but partly obscured by adjacent plutons.|Possibly granodiorite; I-type, oxidised;|igneous intrusive rock|||Y|I-type|17-JAN-23
Turritable Falls Trachyte|18726|Turritable Falls trachyte|29260|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|35215|||||||Trachyte|intermediate volcanic rock|||N||17-JAN-23
Turrum Formation|18729|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Cobia Subgroup|32306|||Priabonian||||deposition|Bartonian||||||||No|31480|||||||Fine marine clastics.|siliciclastic sedimentary rock|||N||17-JAN-23
Two Eyed Creek Granodiorite|37787|Two Eyed Creek Granite|18743|||Yes|Formation, beds|Formal|Variation of published name|Described|||Ararat Suite|28331|Devonian|396|||intrusion|Lower Devonian|401|2||||||No|60459||||||Supersedes Two Eyed Creek Granite. Age and lithology updated from GSV data (HG, Dec 2005)|Hornblende-biotite granite: medium to coarse grained; numerous quartz diorite, biotite granodiorite and country rock xenoliths; strongly foliated in part; occasional small miarolitic cavities; reduced; I-type, non-magnetic.|acid intrusive rock|||Y|I-type|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
Tyers Conglomerate|29084|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Tyers River Subgroup|33942|||Valanginian||||deposition|Berriasian||||||122|VIC|No|31352|22476||||||Outwash fan and braided stream deposits/fluvial: conglomerate, pebbly sandstone, rare siltstone, shale; cobble, minor pebble and occasional boulder conglomerate massive to cross-bedded, polymictic; sandstone, coarse- to fine-grained, bedded.|siliciclastic sedimentary rock|||N||17-AUG-23
Tyers River Subgroup|33942|Tyers Group|26965|||Yes|Subgroup|Formal|Variation of published name|Described|Strzelecki Group|17440|||Valanginian||||deposition|Berriasian||||||||No|22476|22476|||||Includes Tyers Conglomerate, Locmany Formation and Rintoul Creek Formation.|Non-marine to paralic clastics: comprises alluvial fan conglomerates and fluvial coarse quartzose sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Tynong Granite|18759|Tynong granite|18761|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Tynong Suite|18760|Upper Devonian|257.3|12.6||intrusion|Upper Devonian|368|2||||||No|31510||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G239|Porphyritic, coarse-grained I-type granite|acid intrusive rock|||Y|I-type|17-JAN-23
Tynong Suite|18760|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Harcourt Supersuite|31528|Upper Devonian||||intrusion|Middle Devonian||||||||No|42827||||||Tynong Supersuite in White and Chappell (1988). Demoted to Suite status by Rossiter (2003).|Granite, granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Tyrrell beds|18764|Tyrrell Beds|18763|||Yes|Formation, beds|Informal|Variation of published name|Defined|||||Holocene|||||Upper Pleistocene||||||5|VIC|No|42966|42966||||||||||N||17-JAN-23
Undowah Formation, Toaks Creek Conglomerate, Gibbo River Formation, Tongaro Formation|37696|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Wombat Creek Group|20398|||Pridoli||||deposition|Ludlow||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Undowah, Toaks Creek, Gibbo River and Tongaro Formations.|Marine and fluvial conglomerate, siltstone, sandstone, limestone megaclasts|siliciclastic sedimentary rock|||N||17-JAN-23
Undowah Siltstone|30282|Toaks Creek Conglomerate|18250|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Wombat Creek Group|20398|||Pridoli||||deposition|Ludlow||||||||No|60503||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|09-MAY-96|||Originally included in Toaks Creek Conglomerate. Contains a thin limestone lens ("Hairpin").|Siltstone: grey-green and red, with basal graded volcanigenic sandstone and conglomerate of reworked rhyolite lava clasts.|siliciclastic sedimentary rock|||N||17-JAN-23
United Sandstone|39644|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Uplands Province Volcanics|69609|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Piacenzian||||eruption|Piacenzian||||||||No|61155||||||Probably an informal collective term for grouping volcanic rocks in the Ovens and Buchan Valleys, Victoria.|Volcanics|igneous rock|||N||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
Vereker Granite|26974|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Promontory Suite|31627|Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||GSV Code: G259.  Age and lithology updated from GSV data (HG, Dec 2005).|Leucocratic granite: medium to coarse grained; with garnet and cordierite; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Victor Porphyry|82046|Victor porphyry""|79653|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Cambrian|||||Cambrian||||||||No|72445||||||c. 500 Ma igneous crystallisation. A mineralised porphyry intrusion within Mount Stavely Belt. Igneous crystallisation age determined by Lewis et al., 2015.|||||N||17-JAN-23
Victoria River Complex|19099|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40811|||||||||||N||17-JAN-23
Victoria Valley Complex|74001|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Devonian|||||Lower Devonian|396|||||||No|63599||||||Included in the Mafeking Suite.|||||Y||17-JAN-23
Violet Town Volcanic Group|76920|Violet Town Volcanics|19126|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|66244||||||Variation on Violet Town Volcanics. Accidental or deliberate? Rocks described previously as Baddaginnie Granite are now recognised as ignimbrites of the Violet Town Volcanic Group.|Rhyodacite: ignimbrite, orthoclase phenocrysts, euhedral quartz, plagioclase, biotite and uncommon enstatite. Rhyolite: ignimbrite, orthoclase and euhedral quartz phenocrysts in a cordierite, garnet and biotite groundmass.|acid volcanic rock|||N||17-JAN-23
Violet Town Volcanics|19126|Violet Town Ignimbrite|35107|||Yes|Formation, beds|Formal|Variation of published name|Described|Strathbogie Igneous Complex|17410|Strathbogie Suite|25496|Upper Devonian||||eruption|Upper Devonian|373|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||6||No|70933|||||||Subaerial caldera volcanics: rhyodacitic ignimbrite, minor lava.|acid volcanic rock|||N|S-type|17-JAN-23
Vital Shale|39641|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24088|||||||Shale|fine grained siliciclastic rock|||N||17-JAN-23
Vitric Ignimbrite Member|34893|||||Yes|Member, phase|Informal|Other new published name|Described|Blackfellows Flat Conglomerate|34889|||Lochkovian||||magmatic crystallisation|Ludlow|416|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||250|VIC|No|60504||||||Informal name, type section location given in Willman et al (1999) GSV Report 118.|Pyroclastics: vitric ignimbrite; fluvial conglomerate, pebbly sandstone|acid volcanic rock|||N||17-JAN-23
Volador Formation|32295|||||Yes|Formation, beds|Formal|Resvd name published|Described|Halibut Subgroup|32294|||Maastrichtian||||deposition|Campanian||||||||No|13323||Partridge A.D.|02-FEB-98|||Age: latest Campanian to Maastrichtian.|Fluvial-deltaic and paralic deposits - shales, sands and minor coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||12-SEP-23
Waaia Member|19156|Waaia Sand Member|19157|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Shepparton Formation|25474|||||||deposition|||||||6||No|35091||||||Defn card held for Waaia Sand Member.|Unconsolidated to poorly consolidated feldspathic and micaceous sand and clayey sand; light brown, reddish brown and grey in colour; fine sand to gravel sized and often showing upward fining cycles.|siliciclastic sedimentary 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
Waarre Formation|19163|Waarre Sandstone|19166|||Yes|Formation, beds|Formal|Variation of published name|Defined|Sherbrook Group|16826|||Turonian||||deposition|Cenomanian||||||636||No|48581|48581|||||Represents and important reservoir for hydrocarbon resources (gas) in the Port Campbell Embayment and Shipwreck Trough areas.|Sandstone. Heavily burrowed carbonaceous coarse-grained sandstone. Has common microplankton; Dominantly fine-medium quartz sandstone, with carbonaceous siltstone; minor coal. Fluvio-deltaic sandstone.|siliciclastic sedimentary rock|||N||05-OCT-23
Wabba Granite|37788|Wabba Granodiorite|32391|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Koetong Supersuite|9704|Pridoli||||intrusion|Wenlock||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G95|Nonmagnetic, grey, medium to coarse grained; S-type, biotite-muscovite granite; includes both fine grained and coarse grained porphyritic areas.|acid intrusive rock|||Y|S-type|17-JAN-23
Wabonga Volcanic Complex|68436|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||||||eruption|||||||||No|24551|||||||Felsic volcanics.|acid volcanic rock|||N||17-JAN-23
Wahroonga Breccia|74884|Wahroonga Formation|69395|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|||||Late Cambrian|||||Middle Cambrian||||||||No|64606||||||Reserved as Wahroonga Formation (VandenBerg, F., 2005).|Sandstone, breccia: green-grey; massive to well bedded; medium to very thick bedded; phosphatic; abundant lithic clasts; contains brachiopod and phyllocarid fossils. Deep-marine mass flow deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Wakefield Granite|30516|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22878||Simpson C.|27-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G520|Highly magnetic, pink, coarse grained biotite granite; massive, slightly porphyritic in K-feldspar; numerous microgranite and mafic dykes|acid intrusive rock|||Y|I-type|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
Walkerville Member|37609|Walkerville beds|19244|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Waratah Limestone|19435|||Devonian||||deposition|Devonian||||||||No|23309|||||||||||N||17-JAN-23
Wallaby Granite|30568|Wallaby Creek Granite|69232|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Wenlock||||intrusion|Wenlock||||||||No|60503||VandenBerg, A.H.M.|23-OCT-96|||BENAMBRA 1:100 000 sheet area. Includes Larson Hill Granite. Also forms dykes. Intruded by the Banimboola Quartz Monzodiorite. See also Wallaby Creek Granite and Wallaby granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G107. Not to be confused with an invalidly-named Wallaby Granite in RefID 65396, supposedly associated somehow with Saxby Granite in the Mount Isa Inlier.|Biotite granite: leucocratic; medium-grained; with muscovite, tourmaline and minor garnet; mostly weathered with some small corestones of fresh granite.|acid intrusive rock|||Y|S-type|17-JAN-23
Wallace Basalt|19255|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|30370|||||||Basalt|basic volcanic rock|||N||17-JAN-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
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
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
Wando Tonalite|29549|Wando River Tonalite|37789|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Ordovician||||intrusion|Late Cambrian|493|8||||||No|42971|50154|||||Previously referred to as "Wando Granodiorite gneiss" (Wells 1956), "Wando Granodiorite" and "Wando Tonalite gneiss". Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G421|Grey biotite-hornblende tonalite: foliated, fine to medium grained, equigranular; accessory magnetite, epidote, sphene and allanite; enclaves are hornblende-biotite microgranitoid types; magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Wangarabell Granodiorite|19390|Wangarabell Granite|26982|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Cobargo Supersuite|4250|Lower Devonian||||intrusion|Late Silurian||||||||No|41850||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G6|Strongly magnetic, grey, medium grained, massive to foliated, hornblende-biotite granodiorite containing thin mylonite zones; slightly porphyritic in abundant plagioclase.|acid intrusive rock|||Y|I-type|17-JAN-23
Wangarabell Suite|31571|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726|||||||Granites|acid intrusive rock|||Y||17-JAN-23
Wangerrip Group|19406|Wangerrip Formation|19404|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Lutetian|||||Maastrichtian||||||200|VIC|No|48581|31036|||||Of Baker (1953) after Wangerrip Formation of Baker (1950). Gambier Basin. See also Lexicon. SJ54-12.|Shallow marine to continental deposits; contains phosphate materials. Thin oolitic deposits and a range of mudstones and sandstones.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wangerrip Supersequence|73298|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Proteacidites asperopolus|||biozone|deposition|Upper Forcipites longus|||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||The Wangerrip Supersequence comprises a thin LST-TST mudstone succession and a progradational-aggradational HST succession of siliciclastic deltaic sediments.||siliciclastic sedimentary rock||passive margin|N||17-JAN-23
Wangoom Sand|35834|Wangoom Sand Member|35554|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Nirranda Group|14185|||Rupelian||||deposition|Eocene||||||||No|23322|||||||Sand|medium-coarse grained siliciclastic rock|sediment||N||17-JAN-23
Wannaeue Formation|19417|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pleistocene||||deposition|Zanclean||||||80|VIC|Yes|35290||Holdgate G.R.|||01-MAY-77|See also the misspelt Wannacue Formation.|Marine calcarenites and clays in the Melbourne area.|carbonate sedimentary rock|||N||17-JAN-23
Wannon Sandstone Member|30437|||||Yes|Member, phase|Formal|Resvd name published|Described|Silverband Formation|16896|||Silurian||||deposition|Ordovician||||||30||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map. Often used interchangeably with Wannon Sandstone. Part of the Grampians Group.|Sandstone: pale, fine to medium grained, quartzo-micaceous; planar and cross laminated, thin to thickly bedded; minor thin interbeds of micaceous mudstone.|siliciclastic sedimentary rock|||N||17-JAN-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
Waranga Formation|30544|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Murrindindi Supergroup|35522|||Emsian||||deposition|Pridoli||||||750|VIC|No|61185|61185|Edwards J.|11-OCT-96|||Nagambie 1:100 000 sheet area. Hosts auriferous reefs of the Rushworth goldfield.|Marine deposits: turbidite sandstone beds interbedded with bioturbated siltstones; some conglomerate. In an upward-fining succession of units.|siliciclastic sedimentary rock|||N||17-JAN-23
Waratah Bay Ultramafics|31134|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|43489|||||||Ultramafics|igneous rock|||N||17-JAN-23
Waratah Flat Granite|19434|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42627||||||GSV Code: G61. Age and lithology updated from GSV data (HG, Dec 2005).|Hornblende granite: coarse grained; green.|acid intrusive rock|||Y|I-type|17-JAN-23
Waratah Limestone|19435|Waratah limestone|19438|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Murrindindi Supergroup|35522|||Pragian||||deposition|Lochkovian||||||200||No|43461|||||||Limestone: massive, mid-grey; recrystallized.|carbonate sedimentary rock|||N||17-JAN-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
Warburton Granodiorite|25597|Warburton granodiorite|19448|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Warburton Suite|31662|Upper Devonian||||intrusion|Upper Devonian||||||||No|35277||||||Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G235. See also Warburton granodiorite, age: 369+/-13 Ma (Richards and Singleton, 1981).|Biotite granodiorite: fine grained, equigranular; medium grey.|acid intrusive rock|||Y||17-JAN-23
Warburton Suite|31662|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Strathbogie Province.|Granites|acid intrusive rock|||Y||17-JAN-23
Warby Springs Granite|25598|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Upper Devonian|368|15||intrusion|Middle Devonian|375|6||||||No|42154||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G203|Biotite-cordierite granite: grey, medium grained; slightly porphyritic in K-feldspar, has minor garnet; S-type; nonmagnetic.|acid intrusive rock|||Y|S-type|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
Warm Corner Aplite|19469|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|42726|||||||Aplite|acid intrusive rock|||Y||17-JAN-23
Warneet Sands|19475|Warneet Beds|19472|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pleistocene||||deposition|Pliocene||||||||No|42824||||||Although this version of the unit name only used once in 1993, it meets current naming guidelines while Warneet Beds does not.|||||N||17-JAN-23
Warradale Tonalite|37244|Warradale Granodiorite|37610|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ordovician||||intrusion|Middle Cambrian||||||||No|24012|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-hornblende tonalite: foliated, blue-grey, medium to coarse-grained, equigranular; accessory magnetite, allanite, sphene and pyrite; common mafic hornblende-biotite microgranitoid enclaves; non-magnetic to weakly magnetic. I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Warragul basalts|19487|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|39446|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Warrak Formation|23141|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Saint Arnaud Group|23952|||Late Cambrian||||deposition|Late Cambrian||||||2500||No|43260||Cayley R.|23-JUN-94||||Sandstone, interbedded siltstone and shale: immature quartz wacke to feldspathic greywacke sandstones; mostly grade up into green to brown siltstone; common thick blue to black carbonaceous mudstone beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Warrak Formation, Beaufort Formation, Pyrenees Formation|37701|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Saint Arnaud Group|23952|||Cambrian||||deposition|Cambrian||||||||No|||||||Informal grouping of units to be used for  Victoria 1:1million geological map, National Maps Project. Includes Warrak, Beaufort and Pyrenees Formations.|Marine turbiditic sandstone, mudstone, shale|siliciclastic sedimentary rock|||N||17-JAN-23
Warrambat Andesite Breccia|23142|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||eruption|Early Cambrian||||||||No|61187||VandenBerg A.H.M., Willman C. & Hendrickx M.|20-DEC-94|||Barkly River Cambrian belt|Andesite breccia, massive, vesicular andesite lava.|intermediate volcanic rock|||N||17-JAN-23
Warrandyte Conglomerate Member|19496|Warrandyte Conglomerate|19497|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Anderson Creek Formation|419|||Wenlock||||deposition|Wenlock||||||||No|33599|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Warrion Hill lavas|73177|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|61896|||||||||||N||17-JAN-23
Warrnambool Aeolianite|19535|Warrnambool Formation|19536|||Yes|Member, phase|Formal|Unknown or process pending|Described|Bridgewater Formation|2543|||Pleistocene|||||Pleistocene||||||||No|30993||||||Previously a formation of the Bridgewater Group. Now considered a member of the Bridgewater Formation.|Aeolianite|sediment|||N||17-JAN-23
Warrock Limestone Member|41180|||||Yes|Member, phase|Formal|Other new published name|Defined|Nangeela Formation|41179|||Early Cambrian||||deposition|Early Cambrian||||||||No|50160|50154||||||Calcite marble: fine grained, laminated.|carbonate sedimentary rock|||N||17-JAN-23
Wartook Sandstone|30442|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Difficult Subgroup|30438|||Lower Devonian||||deposition|Ludlow||||||250||No|44929||Cayley R., Taylor D.|28-AUG-96|||Used on Grampians special map.|Sandstone: fine- to coarse-gr. qtz to quartzo-feldspathic, scattered+lag horizons of sub-rounded vein qtz pebbles towards base; laminated, x-lam'd and rarely trough x-lam'd; med. to thickly bedded; forms prominent outcrops; minor qtz.siltst. interbeds|siliciclastic sedimentary rock|||N||17-JAN-23
Wataepoolan Limestone|19556|Wataepoolan Limestone Member|19555|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|Heytesbury Group|8311|||Miocene||||deposition|Miocene||||||||No|31624|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Watchmaker Granodiorite|37790|Watchmaker Granite|29716|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian||||intrusion|Silurian||||||||No|43314||||||May be associated with the Glenbog Supersuite because of similarities with Blue Gums Tonalite on TMI image and petrographic evidence. Intrudes Pinnak Sandstone.  Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G502|Medium to coarse grained biotite K-feldspar rich,  I-type granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Watgania Gap Sandstone|30431|||||Yes|Formation, beds|Formal|Resvd name published|Described|Red Man Bluff Subgroup|30429|||Ludlow||||deposition|Upper Ordovician||||||200||No|44929||Cayley R., Taylor D.|28-AUG-96|||To be used on Grampians special map.|Sandstone pale yellow, quartzo-feldspathic; massive, laminated and trough-laminated, thin to thickly bedded; outcrops poorly; minor thin interbeds of laminated siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wattle Grove Granite|30692|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Wenlock||||intrusion|Llandovery||||||||No|60503||VandenBerg, A.H.M.|23-DEC-96|||Benambra 1:100 000 sheet area. Intrudes the Omeo Metamorphic Complex; intruded by the Triassic Beloka Gap Granite. Age and lithology updated from GSV data (HG, Dec 2005)|Muscovite-biotite granite: grey; medium-grained; foliated, margins rich in metasedimentary enclaves: S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Wedderburn Granodiorite|37612|Wedderburn Granite|25609|||Yes|Formation, beds|Formal|Variation of published name|Described|||Mount Cole Suite|28790|Lower Devonian|386|5||intrusion|Lower Devonian|394|5||||||No|23309||||||Introduced by King (1977) as Wedderburn pluton. Strongly zoned, with only the inner weakly to nonmagnetic zones having significant outcrop; radiometric response variable, outcrop areas high K, U and moderate Th, laterite covered areas Th dominant. Updated from GSV data (HG, Dec 2005). GSV Code: G345|Biotite and biotite-hornblende granodiorite: porphyritic; marginal outcrops contain enclaves of feldspar-hornblende porphyry.|acid intrusive rock|||Y|I-type|17-JAN-23
Weeragua Granodiorite|19682|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Glenbog Suite|7361|Lower Devonian||||intrusion|Llandovery||||||||No|40889||||||Age and lithology updated from GSV data (HG, Dec 2005).  See also the informal Weeragua Granite. GSV Code: G45|Moderately magnetic, to non-magnetic, greenish grey, coarse grained, biotite-hornblende granodiorite: massive to mylonitic; compositionally variable; prominent quartz; abundant mafic inclusions.|acid intrusive rock|||Y|I-type|17-JAN-23
Wellington Volcanic Group|37613|Wellington Rhyolite|27610|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|Avon Supergroup|35960|||Frasnian||||eruption|Givetian||||||900||No|23309||||||Geological Survey of Victoria map code: Daw. Previously also Wellington Volcanics. See also Wellington Volcanics Group.|Subaerial rhyolitic to rhyodacitic ignimbrite, minor lava, fluvial sediments.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wennicott Tonalite|37243|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Ordovician||||intrusion|Middle Cambrian||||||||No|23309|50154|||||Age and lithology updated from GSV data (HG, Dec 2005)|Bluish-grey, biotite tonalite: foliated, medium grained, equigranular; accessory magnetite and epidote; rare hornblende-rich microgranitoid enclaves; migmatite enclaves common near western boundary; non-magnetic.|acid intrusive rock|||Y|S-type|17-JAN-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
Werribee Formation|29131|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Oligocene|27|||deposition|Eocene|50|||||300||No|33598||||||Of Thomas and Baragwanath (1950).|Sand, sandy and silty clay, with pyritic and lignitic bands.|regolith|||N||17-JAN-23
Werribee Formation, Childers Formation|37687|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|||||Eocene||||deposition|Eocene||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Werribee and Childers Formations.|Fluvial gravel, sand, minor silt and clay|siliciclastic sedimentary rock|||N||17-JAN-23
Werrikoo Member|19759|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Whalers Bluff Formation|19858|||Pleistocene||||deposition|Pliocene||||||||No|31624||||||Pliocene - Pleistocene. See also Werrikoo Limestone.|||||N||17-JAN-23
Wescotts Granite|37791|||||Yes|Formation, beds|Formal|Other new published name|Described|||Glenloth Suite|37620|Middle Devonian||||intrusion|Lower Devonian||||||||No|60491||||||Age updated from GSV data (HG, Dec 2005)|Leucocratic granite: medium to coarse grained. Reduced S-type; possibly weakly magnetic (to 5nT), response overprinted by magnetic palaeodrainage; gravity response part of eastern edge regional low; radiometric responses subdued, K higher than Th and U.|acid intrusive rock|||Y|S-type|17-JAN-23
Western Port Group|19816|||||Yes|Group, Suite|Formal|Resvd name published|Defined||||||||||||||||175|VIC|Yes|36197||Lakey R. & Tickell S.J.|09-APR-79||||||||N||17-JAN-23
Whalers Bluff Formation|19858|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pliocene||||deposition|Pliocene|4.35|||||130|VIC|No|30928|42827|||||Defined by Boutakoff and Sprigg 1953.|Coastal: sandy limestone, calcarenite, shell beds, marl.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Whalers Bluff Supersequence|73301|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Holocene|||inferred|deposition|Miocene|||biozone|||||No|63134|63134|Ryan, D.J.|15-MAY-07|||The Whalers Bluff Supersequence comprises a progradational succession of fossiliferous calcarenite and calcilutite, deposited on a cool-water, high-energy carbonate ramp.|Calcareous claystone overlain by marls, calcarenite and calcilutite; shaly limestone overlain by calcarenite and calcilutite; quartz sandstone overlain by silty mudstone, and limestone.|carbonate sedimentary rock||passive margin|N||17-JAN-23
Whisky Creek Granite|19879|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|34031|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Whisky Knob Rhyolite|23184|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Jamieson Volcanic Group|73609|||Late Cambrian||||eruption|Middle Cambrian||||||||No|23309||VandenBerg, A.H.M.|30-JUN-94|||Previously of Licola Volcanic Group.|Rhyolite lava, minor rhyolitic volcaniclastics; marine lavas and volcaniclastics. Red-black in RGB. Non-magnetic to weakly magnetic.|acid volcanic rock|||N||17-JAN-23
White Hills Gravel|19893|White Hills Group|35338|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Eocene||||deposition|Paleocene|65|||||42||No|42683|60599|||||First shown on Bendigo 1:250k mapsheet of King and Wilkinson (1975). Originally included in the Renmark Group. Fringes the southern margins of Murray Basin. Important in the Bendigo gold field. Max. thickness: <20m at type locality; <42m at Guildford. See also the misspelt White Hills Gravels.|Vein quartz conglomerate, sand, silt, clay (fluvial braid plain); compositionally mature, well-rounded pebbles and cobbles of reef quartz, lesser angular vein quartz and bedrock clasts; moderately to well sorted, massive to crudely stratified.|regolith|||N||17-JAN-23
White Monkey Volcanic Group|68411|White Monkey Volcanics|36862|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Lower Devonian||||eruption|Lower Devonian||||||||No|24551||||||Advised by Fons VandenBerg, Vince Morand 30-SEP-2010 that this name supersedes White Monkey Volcanics.|Subaerial caldera volcanics: rhyolitic to rhyodacitic ignimbrite; extrusive, fluvial: felsic ignimbrite, minor conglomerate, sandstone.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
White Rabbit Diorite|37614|||||Yes|Formation, beds|Formal|Other new published name|Described|||Ararat Suite|28331|Lower Devonian||||intrusion|Lower Devonian||||||||No|23309||||||Age and lithology updated from GSV data (HG, Dec 2005)|Pale grey biotite-hornblende-quartz diorite: medium grained; contains pyroxene; oxidised, highly magnetic.|acid intrusive rock|||Y||10-SEP-23
White Star Sandstone|69399|||||Yes|Formation, beds|Formal|Other new published name|Described|Walhalla Group|19233|||Lower Devonian||||deposition|Lower Devonian||||||||No|64605||VandenBerg, F. (GSV)|01-JUL-05|VandenBerg, F.|01-JUL-05|See also White Star Formation.|Pale grey sandstone, thick to thin bedded; turbidites; quartz-rich, medium- to fine-grained; dark grey to black siltstone, thin bedded, well laminated to shaly; deep-marine turbidite fan deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Whitegum Tonalite|30511|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Glenbog Supersuite|7362|Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|19-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005)|Biotite - minor hornblende tonalite: grey, medium grained, massive; conspicuous quartz grains; mafic inclusions and porphyritic dykes; I-type |acid intrusive rock|||Y|I-type|17-JAN-23
Whitelaw Siltstone|19921|||||Yes|Formation, beds|Formal|Other new published name|Defined|Jordan River Group|9028|||Pragian||||deposition|Ludlow||||||1000|VIC|Yes|33601|33601|VandenBerg, A.H.M.|20-FEB-74||||Finely laminated siltstones characterise the formation. It also includes very fine-grained quartz-mica sandstones, which are regularly interbedded, and several relatively thin horizons of thick-bedded quartz-rich sandstones.|fine grained siliciclastic rock|||N||17-JAN-23
Whitelaw Siltstone, Eildon Sandstone, Boola Formation, Coopers Creek Limestone, Wilson Creek Shale, Wurutwun Formation|37691|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Jordan River Group|9028|||Emsian||||deposition|Ludlow||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Whitelaw Siltstone, Eildon Sandstone, Boola Formation, Coopers Creek Limestone, Wilson Creek Shale and Wurutwun Formation.|Marine turbiditic sandstone, mudstone, conglomerate, lithic sandstone, limestone, black shale|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Whitimaria Granite|37792|||||Yes|Formation, beds|Formal|Other new published name|Described|||Nine Mile Suite|41779|Lower Devonian||||intrusion|Lower Devonian||||||||No|60491|||||||Leucocratic muscovite granite: pale grey, medium grained; very poorly exposed. Oxidised I-type: generally low radiometric response; G623a: highly magnetic (to 140 nT); G623b: nonmagnetic core.|acid intrusive rock|||Y|I-type|17-JAN-23
Whiting Formation|75877|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|Hapuku Subgroup|38326|||Pliocene|||inferred|deposition|Late Miocene|||inferred|||||No|70076||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Of Hapuku Subgroup, Gippsland Basin. Named after the Whiting-1 well the Whiting Formation is the formal name applied to Unit IV of the Seaspray Group described by Bernecker et al. (1997). The formation consists of Late Miocene to Recent highly fossiliferous wackestones and packstones distributed across most of the Central Deep. The type section is designated as from the seafloor to 801m in the Kingfish-7 well (Bernecker et al., 1997, fig.5).|Highly fossiliferous wackestones and packstones||||N||17-JAN-23
Whitlands Volcanic Group|75951|Older Volcanics|14540|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Priabonian||||eruption|Lutetian||||||||No|68115||Morand, V.J. (GSV)|19-MAY-11|||This new unit replaces former Older Volcanic Group in the Whitlands-Toombullup area, comprising lava flows of basanite, alkali olivine basalt, hawaiite and olivine tholeiite. These lie within the Toombullup Subprovince of Price et al. (2003).There are several flows preserved as relics on ridge tops, covering a large area, and potentially these could be subdivided into formations with more detailed mapping. To be published in: Morand, V.J. 2011. Stratigraphic name changes in Eastern Victoria, Seamless Geology Project. GeoScience Victoria Technical Record 2011/1.|Lava flows of basanite, alkali olivine basalt, hawaiite and olivine tholeiite|foid-bearing volcanic rock|basic volcanic rock||N||17-JAN-23
Wibenduck Limestone|24102|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Ludlow|||inferred, biostratigraphic correlation|deposition|Ludlow|||inferred, biostratigraphic correlation||||VIC|No|41585|42647|VandenBerg, A.H.M.|07-OCT-86||||Limestone, massive, recrystallised, dark-grey to bluish in colour.|carbonate sedimentary rock|||N||17-JAN-23
Wickham metamorphics|37272|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|24002||||||On King Island - see also Wickham schist.  Different unit from Wickham Formation in NT.|Metamorphics|metamorphic rock|||N||17-JAN-23
Wickliffe Rhyolite|19980|Wickliffe rhyolite|19981|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Silurian||||eruption|Pridoli||||||||No|33602|||||||Felsic volcanics.|acid volcanic rock|||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
Wild Dog Chert|69396|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Ordovician||||deposition|Late Cambrian||||||||No|64606||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05||Dark grey, massive to bedded, chert; quartz, graphite and pyrite are practically the only minerals in this rock; contains radiolaria.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Wild Horse Formation|20013|||||Yes|Formation, beds|Formal|Other new published name|Described|Wentworth Group|19739|||Lower Devonian||||deposition|Lower Devonian||||||250||No|43461||||||Geological Survey of Victoria map code: Dww. See also Wild Horse Creek Formation and White Horse Creek Formation.|Conglomerate, (pebbly) sandstone, quartzite, rare mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wild Horse Formation, Tabberabbera Formation|37703|||||Yes|Subgroup|Informal|Variation of published name|Not recorded|Wentworth Group|19739|||Devonian||||deposition|Devonian||||||||No|||||||Informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Wild Horse and Tabberabbera Formations of the Wentworth Group.|Marine mudstone, sandstone, conglomerate, turbidites|siliciclastic sedimentary rock|||N||17-JAN-23
Wilkie Sandstone Member|20050|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|Killingworth Formation|23698|||Pragian||||deposition|Pragian||||||||No|35283||||||Of Garratt (1986).  See also Wilkie Member.|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wilkinson Creek Conglomerate|20055|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Timbarra Subgroup|30554|||Lower Devonian|395|||deposition|Pragian|410|||||500||No|41585||||||Murrindal area.|Sedolithic conglomerate, breccia; pebbles of quartzite, sandstone, minor granite, shale, chert; minor medium to coarse grained sandstone; poorly bedded; pebbly sandstone interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Williamsons Road Serpentinite|24575|Williamson Road Serpentinite|41886|||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Stavely Volcanic Complex|13108|||Late Cambrian|||||Early Cambrian|||||||VIC|Yes|38436|40887|G.L.Buckland|08-FEB-82|||Defined (as Williamsons Road Serpentinite) in Buckland 1986; name derived from Williamsons Road near Stavely. Appears inexplicably in the singular in Cayley and Taylor (1997): see RefID 61183, and in VandenBerg (2009).|Serpentinite; serpentine-chromite-quartz-magnetite rock|metamorphosed ultramafic rock|||N||06-SEP-23
Willimigongong Ignimbrite|32501|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Macedon Igneous Complex|10936|||Upper Devonian||||eruption|Upper Devonian|||||400||VIC|No|44197||||||Originally Willimigongong Dacites (Gregory 1902); later Willimigongong Creek Dacite (Summers 1914). Melbourne 1:250 000 sheet area.|Biotite-enstatite rhyodacite ignimbrite; dense blue-black, medium-grained, massive, recrystallised, pyroclastic deposits.|acid volcanic rock|||N||17-JAN-23
Wilson Creek Shale|26219|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Jordan River Group|9028|||Emsian||||deposition|Pragian||||||500|VIC|No|43871|61185|||||Of Thomas (1953). A controversy exists to include Wilson Creek Shale in the Humevale Siltstone (due to fossil evidence) but here the authors propose Humevale Siltstone be redefined to exclude the shale unit and Norton Gully Sst (1997) - see RefID: 61185. Appears as a widespread unit in Murrindindi Supergroup in Geology of Victoria (2003).|Dark grey to black paper-laminated shale packages alternating with thin siltstone beds; sandstone beds near top of unit. Marker unit. Contains numerous fossils. (RefID: 61185)|fine grained siliciclastic rock|||N||17-JAN-23
Wilsons Promontory Granite|20179|Wilsons Promontory granite|20180|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Promontory Suite|31627|Middle Devonian|384|||intrusion|Middle Devonian|395|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|37501||||||Intrusion at 384 Ma. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G260|Biotite granite: coarse grained, porphyritic; with some garnet; S-type.|acid intrusive rock|||Y|S-type|17-JAN-23
Windarra Formation|23217|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Timbarra Subgroup|30554|||Lower Devonian|||inferred, overlying unit|deposition|Ludlow|||inferred, underlying unit|||700|VIC|No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area. Age inferred from overall Snowy River Volcanics [group] overlying and underlying units.|Sedolithic and volcanilithic conglomerate, sandstone, mudstone: poorly bedded; alluvial fan deposits; hornblende andesite, rhyolite and quartz latite lava; lava flows.|siliciclastic sedimentary rock|metamorphosed igneous rock||N||17-JAN-23
Windermere Sandstone Member|20219|Windermere Member|20218|||Yes|Member, phase|Formal|Variation of published name|Fully described|Eumeralla Formation|6363|||Aptian|119|||deposition|Barremian|125|||||160||No|42361||||||Also called Windermere Member in Victoria. Within the Otway Supergroup.||siliciclastic sedimentary rock|||N||17-JAN-23
Windgelli Clay|38052|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Upper Pleistocene||||deposition|Upper Pleistocene||||||2||No|23402|||||||Calcareous, aeolian clay.|regolith|||N||17-JAN-23
Wingan Granite|20243|Skerries Granite|26899|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G9. Non-magnetic pluton (Skerries Granite) surrounding an eliptical magnetic pluton (Wingan Granite). The names of these two plutons have been swapped, so that they now apply in the places they were named after.|Granite|acid intrusive rock|||Y|I-type|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
Winteriga Sandstone|35521|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Cobbannah Group|32459|||Silurian||||deposition|Silurian||||||||No|||VandenBerg A.H. M.|14-JUN-00|||Mount Buffalo 1:100 000 sheet area. Age: ?Silurian. Best exposure along the Rose River.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Wiridjil Gravel|23229|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Wangerrip Group|19406|||Paleocene||||deposition|Maastrichtian||||||70||No|43590||Tickell, S.J.|14-JAN-92|||Of Tickell et al. (1992); shown as Wiridjil Gravel Member (of Pebble Point Formation) in Edwards et al. (1994); re-established with Formation status in VandenBerg (2009): see RefID 66002. Tertiary sediments previously mapped as Dilwyn Formation, together with Moomowroong Sand  - lateral equivalents of Pebble Point Formation. Unit named after the Parish of Wiridjil (GSV Report 103, p21). See also Formation, Member, Gravels and the misspelling, Wiridgil.|Quartz sand, silt, clay, pebbles, rare clay clasts; pebbles mostly dispersed, less commonly in horizontal layers; cohesive, sorting mostly poor, rare volcanic and metamorphic lithic cobbles and pebbles; occasional large-scale tabular cross-bedding.|regolith|||N||17-JAN-23
Wirrah Conglomerate|30480|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Latrobe Group|10217|||Danian||||deposition|Cenomanian||||||||No|43145|||||||Conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Woleebee pluton|83432|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Glenloth Suite|37620|Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73496||||||G609. magnetic response to 30 nT; gravity response difficult to separate from those from adjacent plutons.|Igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Wollonaby Granite|69414|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|61165||VandenBerg, F. for GSV|01-JUL-05|VandenBerg, F.|01-JUL-05|Geological Survey of Victoria map code: G166. Age updated from GSV data (HG, Dec 2005).|Biotite granite: grey; medium grained; equigranular; pervasive mylonitic fabric.  I-type intrusion.|acid intrusive rock|||Y|I-type|17-JAN-23
Wombargo Subgroup|23240|||||Yes|Subgroup|Formal|Resvd name published|Fully described|Snowy River Volcanic Group|28138|||Pragian|||||Lochkovian||||||3000||No|43206||K.Orth|05-JUN-87|||Murrindal area.|Ignimbrite, conglomerate and sandstone: pink crystal-rich quartz ignimbrite with quartzite and rhyolitic lava lithic clasts and small pumice fragments; sedimentary units: clast-supported conglomerate, interbedded pebbly and massive sandstone.|siliciclastic sedimentary rock|acid volcanic rock||N||10-SEP-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
Wombat Volcanics|75870|||||Yes|Formation, beds|Reserved|Reserved|Briefly described|Emperor Subgroup|32290|||Turonian||||eruption|Turonian||||||||No|70076||Partridge, A. (Biostrata P/L), Kelman, A. (GA)|23-MAR-11|||Gippsland Basin. Recent drilling has found a mixed basic volcanics and conglomerate unit at the base of the Emperor Subgroup in both the  Wombat and Longtom fields referred to as the Wombat Volcanics by Partridge. Currently available palynological data suggests that the Wombat Volcanics are part of the Emperor Subgroup (Late Cretaceous) and are significantly younger than the Strzelecki Group (Early Cretaceous). However, more work is required to verify this.|||||N||17-JAN-23
Wonga Schist|36817|Wonga schist|35149|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lower Devonian|||||Lower Devonian||||||||No|61410|||||||Informal name for contact metamorphosed Warrak Formation, Deenicull Schist and Lexington Schist in the Stawell region.  Quartz-biotite (cordierite) schist; numerous thin boudinaged quartz veins; psammite beds occasionally preserved.|metasedimentary siliciclastic rock|||N||17-JAN-23
Wonthaggi Formation|33943|||||Yes|Formation, beds|Informal|Variation of published name|Described|Korumburra Subgroup|39833|||Albian||||deposition|Barremian||||||2500||No|23911||||||After Wonthaggi Coal Measures of Medwell (1954). Alternate name for informal upper Strzelecki Group from another author. Re-named the Eumeralla Formation by VandenBerg et al. (2006) and VandenBerg (2008); the Wonthaggi Formation name is retained for Eumeralla Formation-equivalent rocks in the Gippsland Basin. Probably includes San Remo Member.|Lithic volcaniclastic sandstone, arkose, siltstone, minor conglomerate and coal; fluvial.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-AUG-23
Woodbine Basalt|29167|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pleistocene||||eruption|Pleistocene||||||||No|29425|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Woods Point Dyke Swarm|20527|||||Yes|Formation, beds|Informal|Other new published name|Fully described|||||Upper Devonian|376|||intrusion|Middle Devonian|387|14|isotopic, K/Ar|||||No|42827||||||Age 387+/-14 Ma (K/Ar dating reported by Richards and Singleton, 1981,JGSA 28, p403) [RefID 24588, 2003].|Hornblende-biotite quartz diorite and quartz monzonite, hornblende-biotite gabbro, hornblende-augite-biotite quartz gabbro, kaersutite-phlogopite peridotite, quartz and feldspar bearing porphyry; medium grained; common hydrothermal alteration.|intermediate intrusive rock|basic intrusive rock||Y||17-JAN-23
Woodside Basalt|20528|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Pleistocene||||eruption|Pleistocene||||||||No|31007|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Woolamai Granite|20547|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Dromana Suite|5706|Upper Devonian||||intrusion|Middle Devonian||||||||No|33358||||||Age updated from GSV data (HG, Dec 2005).|Biotite granite: pink coarse-grained leucocratic; contains quartz, perthite, oligoclase, biotite and accessory apatite and zircon; veins of aplite and pegmatite present locally.|acid intrusive rock|||Y|I-type|17-JAN-23
Woollybutt Quartz Monzodiorite|20558|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Devonian||||intrusion|Wenlock||||||||No|42627||||||G53. Age and lithology updated from GSV data (HG, Dec 2005)|Actinolitic quartz monzodiorite: porphyritic; medium grained; dark green; pyritic; I-type. |intermediate intrusive rock|||Y|I-type|17-JAN-23
Woolshed Creek Ignimbrite|23255|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Mount Dawson Subgroup|22409|||Lower Devonian||||eruption|Ludlow||||||150||No|43206||Orth K|30-NOV-89|||Murrindal area.|Feldspar ignimbrite: orange with a granular appearance and minor quartz phenocrysts.|acid volcanic rock|||N||17-JAN-23
Woolshed Valley Granite|20581|Woolshed Valley Adamellite|20580|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Beechworth Suite|31572|Upper Devonian||||intrusion|Upper Devonian||||||||No|42154||||||Age and lithology from GSV data (HG, Dec 2005). GSV Code: G193|Biotite-muscovite granite: coarse phenocrysts of K-feldspar, plagioclase and quartz; K-feldspar shows plagioclase overgrowths and granophyric texture with quartz.|acid intrusive rock|||Y||17-JAN-23
Woori Yallock Formation|74951|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Walhalla Group|19233|||Emsian|||inferred, lithostratigraphic correlation|deposition|Emsian|||inferred, lithostratigraphic correlation|||||No|66244||VandenBerg, F. (GSV)||||Name intended for a new formation within the Walhalla Group, in the Woori Yallock area between Melbourne and Warburton. Age inferred from Walhalla Group age.|Turbiditic sandstone, siltstone and shale with rare diamictite and conglomerate beds; sandstone varies from quartz-rich to micaceous to lithic; shelly fossil fragments locally present.|siliciclastic sedimentary rock|||N||11-SEP-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
Wooroonook Granite|42135|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|60491|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Woosang Granite|37794|||||Yes|Formation, beds|Formal|Other new published name|Described|||Nine Mile Suite|41779|Middle Devonian||||intrusion|Lower Devonian||||||||No|60492||||||Granite: gravity response confused by responses from other intrusions; K, Th and U higher than surrounding alluvium. GSV Code:G628. 628a; weakly magnetic (< 10 nT) rim. G628b: essentially nonmagnetic (< 2 nT). Age updated from GSV data (HG, Dec 2005).|Weakly porphyritic, medium grained, muscovite granite; contains biotite and cordierite; reduced S-type|acid intrusive rock|||Y|S-type|17-JAN-23
Woranga Member|24123|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|38929||VandenBerg, A.H.M.|25-AUG-82||||||||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
World Hill Granite|20629|World Hill granite|29175|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|36201|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Wortongie pluton|83440|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian|||inferred||Lower Devonian|||inferred|||||No|73505||||||G653. Strongly magnetically zoned, with an outer response to 150 nT above the surrounds and a nonmagnetic core; a gravity low 50 micrometres/second/second below surounds.|igneous intrusive rock.|igneous intrusive rock|||Y||17-JAN-23
Wrens Flat Andesite|23265|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|Jamieson Volcanic Group|73609|||Early Cambrian||||eruption|Early Cambrian||||||||No|61187||VandenBerg, A.H.M.|07-SEP-94|||Cambrian. Misspelt when reserved.|Andesite lava, massive and pillowed.|intermediate volcanic rock|||N||17-JAN-23
Wroxham Granodiorite|30507|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|22878||Simpson C.|19-SEP-96|||Craigie 1:100 000 sheet area. Highly magnetic in the east (200-250 nT), non-magnetic along western margin. High K, low Th and U. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G522|Grey, medium to coarse grained, massive to moderately foliated, biotite-hornblende granodiorite with abundant mafic inclusions; contains thin mylonite zones|acid intrusive rock|||Y|I-type|17-JAN-23
Wuk Wuk Marl|20658|Wuk Wuk Marl Member|20657|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Seaspray Group|16717|||Langhian|14.5|||deposition|Burdigalian|16.4|||||25||No|33459|||||||Marine limestone, marl and sand.|carbonate sedimentary rock|||N||24-MAY-23
Wulgulmerang Volcaniclastics|75750|Wulgulmerang Tuff|20660|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Snowy River Volcanic Group|28138|||Pragian||||eruption|Lochkovian||||||200||No|68115||VandenBerg, A.H.M., Morand, V (GSV)|30-SEP-10|||Replaces Wulgulmerang Tuff - advice from Fons VandenBerg 30-SEP-2010. Of Snowy River Volcanics?|Sandstone, ash, pumice rich ash, mudstone, poorly welded ignimbrite, conglomerate, breccia.|acid volcanic rock|siliciclastic sedimentary rock||N||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
Wurruk Sand Member|20676|||||Yes|Member, phase|Formal|Other new published name|Described|Boisdale Formation|27716|||Pliocene||||deposition|Miocene||||||||No|35273||||||Geol. Prov: onshore Gippsland Basin.|Sand|regolith|||N||17-JAN-23
Wurutwun Formation|20679|Coopers Creek Formation|26492|||Yes|Formation, beds|Formal|Other new published name|Fully described|Jordan River Group|9028|||Emsian||||deposition|Lochkovian||||||||No|41571||||||These rocks formerly included in Coopers Creek Formation (Willman 1971). Not related to Coopers Creek Limestone.|Dark grey to black siltstone, quartz-rich and some lithic sandstone, conglomerate, limestone lenses; black shale, chert; deep-marine deposits. Speckled blue-green to yellow-pink in RGB. Nonmagnetic.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wy Yung Gravel Member|20684|Wy Yung Gravel|20685|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Tambo River Formation|26924|||Middle Miocene||||deposition|Middle Miocene||||||||No|35273|||||||Gravel|sediment|||N||17-JAN-23
Wycheproof Granite|20707|||||Yes|Formation, beds|Formal|Other new published name|Described|||Glenloth Suite|37620|Middle Devonian|387|6||intrusion|Lower Devonian|407|6||||||No|35278||||||Age and lithology updated from GSV data (HG, Dec 2005)|Biotite-muscovite granite: coarse grained, pale grey |acid intrusive rock|||Y|S-type|17-JAN-23
Wychitella Granite|27022|||||Yes|Formation, beds|Formal|Other new published name|Described|||Mount Cole Suite|28790|Middle Devonian|370|1|isotopic, Rb/Sr|intrusion|Lower Devonian||||||||No|42726||||||Age updated from GSV data (HG, Dec 2005)|Biotite granite: I-type, oxidised; medium grained, pinkish grey, with rare mafic enclaves. Highly magnetic (to 400 nT), showing concentric layering; rare outcrops show high K, moderate Th, U.|acid intrusive rock|||Y|I-type|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 Granite - aplitic phase 79668|79668|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Yabba Granite|20736|Late Silurian|||||Late Silurian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G172a.|Aplite and pegmatite.|acid intrusive rock|||Y||17-JAN-23
Yabba Granite - gneissic phase 79669|79669|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Yabba Granite|20736|Late Silurian|||||Late Silurian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G172b.|Gneissic granite; common enclaves of migmatitic gneiss|metamorphosed acid igneous rock|||Y||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
Yackandandah Granite - equigranular phase 79671|79671|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Yackandandah Granite|20742|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G177b. Gradational boundary with G177a.|Biotite granite: grey leucocratic; medium to fine-grained; equigranular|acid intrusive rock|||Y||17-JAN-23
Yackandandah Granite - porphyritic phase 79670|79670|||||Yes|Member, phase|Informal|Unnamed published|Briefly described|||Yackandandah Granite|20742|Lower Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) map symbol G177a. Gradational boundary with G177b.|Biotite-hornblende granite: grey; coarse-grained; porphyritic with phenocrysts of K-feldspar commonly aligned to form a flow fabric; rare ovoid microdiorite enclaves;|acid intrusive rock|||Y||17-JAN-23
Yalca Member|20753|Yalca member|20755|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Shepparton Formation|25474|||||||deposition|||||||||No|35091|||||||Sand|sediment|||N||17-JAN-23
Yallock Formation|24593|Yallock formation|20767|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Western Port Group|19816|||Pliocene||||deposition|Oligocene|||||||VIC|Yes|36197||S.J.Tickell, R.Lakey|14-AUG-79|Vic SNSC|20-JUN-80||Sand|sediment|||N||17-JAN-23
Yallourn Formation|20769|Yallourn formation|20774|||Yes|Formation, beds|Formal|Variation of published name|Described|Latrobe Valley Subgroup|39333|||Tortonian||||deposition|Burdigalian||||||250||No|31188|||||||Thick sequences of lignite and clastics accumulated in peat swamps.|organic rich sedimentary rock|regolith||N||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
Yalmy Group - lower sandstone unit 79715|79715|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol Sy1. Likely equivalent to Tombong Formation, Ryrie Formation.|Massive to  bedded, medium to very coarse grained quartzose sandstone; thick bedded, green grey siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Yalmy Group - middle siltstone unit 79716|79716|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol Sy2. Likely equivalent to Merriangaah Siltstone.|Green-grey, thick bedded, laminated to massive siltstone; minor quartzitic sandstone; deep-marine deposits.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Yalmy Group - upper sandstone unit 79717|79717|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Yalmy Group|20777|||Llandovery||||deposition|Llandovery||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol Sy3. Possibly equivalent to Tantangera Formation.|Pale grey to white to green fine to medium grained quartzitic sandstone, mudstone; deep marine turbidite fan deposits.|siliciclastic sedimentary rock|||N||17-JAN-23
Yalmy Group and equivalents|37698|||||Yes|Formation, beds|Informal|Variation of published name|Not recorded|Yalmy Group|20777||||||||||||||||No|||||||Lithology referring to informal grouping of units to be used for Victoria 1:1million geological map, National Maps Project. Includes Seldom Seen, Sy1,2,3 and Towanga Formation and equivalents.|marine turbiditic sandstone, mudstone, mass flow conglomerate.||||N||17-JAN-23
Yaloak Formation|27026|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Eocene||||deposition|Eocene||||||140||No|60083||||||Of Thomas and Baragwanath (1950), but never defined. Said to underlie 'Lerderderg Formation' [?Lerderderg Gravel Member]. Holdgate et al. (2002) report spores/pollen as old as Maastrichtian. Poor description makes this unit difficult to distinguish lithologically from Werribee Formation. Grey clays with fossiliferous ferruginous bands, gravels and thin coal seams. Potentially laterally continuous with White Hills Gravel. See also Lal Lal Formation.|Sand, sandy and silty clay, with pyritic and lignitic bands.|regolith|||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
Yambulla Granodiorite|30512|Yambulla Adamellite|23283|||Yes|Formation, beds|Informal|Variation of published name|Described|||Wallagaraugh Suite|25586|Lower Devonian||||intrusion|Late Silurian||||||||No|22878||||||Craigie 1:100 000 sheet area. See also the informal Yambulla Granite. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G521|Highly magnetic, pale grey to pink, medium-grained, massive biotite granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Yan Yean Formation|20800|||||Yes|Formation, beds|Formal|Variation of published name|Described|Dargile Group|34121|||Ludlow||||deposition|Wenlock||||||||No|31852||||||Previously considered a Dargile Formation equivalent. In 2010, replaced by Humevale Siltstone in the Merriang-Wandong area. Is this name still in use elsewhere?|||||N||17-JAN-23
Yanakie Granite|25661|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Middle Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Briefly described. Age updated from GSV data (HG, Dec 2005). GSV Code: G254|S-type granite|acid intrusive rock|||Y|S-type|17-JAN-23
Yando Member|39709|Yando Clay Member|29458|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Shepparton Formation|25474|||||||deposition|||||||||No|2967||||||Abbreviation or current form of Yando Clay Member?|Clay|sediment|||N||17-JAN-23
Yangery Basalt|20821|Yangery basalt|20822|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Piacenzian||||eruption|Piacenzian||||||||No|31004|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Yarak Granite|29702|Yarrak Granite|29700|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Lower Devonian||||intrusion|Late Silurian||||||||No|43315||VandenBerg A.H.M., Willman C.E., Hendrickx M. & Magart A.|13-SEP-95|||Orbost mapping project. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G501|Weakly foliated porphyritic biotite hornblende granite; I-type|acid intrusive rock|||Y|I-type|17-JAN-23
Yarra Delta Group|29186|||||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Upper Pleistocene|||||Lower Pleistocene||||||47||No|35011|||||||Sediments||||N||17-JAN-23
Yarraberb pluton|83446|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Devonian|||inferred||Silurian|||inferred|||||No|73497||||||G344. Granite: highly magnetic (up to 300 nT) with a moderately magnetic part (100 nT) and nonmagnetic core; gravity low of 60 micrometres/second/second.|Granite|acid intrusive rock|||Y||17-JAN-23
Yarragon Formation|24138|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Miocene||||deposition|Middle Miocene||||||200|VIC|No|40114|40114|Holdgate G.|23-MAY-83|||In the Thorpdale- Moe area. Probably includes Moe A and Moe B coal seams.|||||N||17-JAN-23
Yarram Formation|20880|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Eocene||||deposition|Paleocene||||||47||No|35273|||||||Comprised predominantly of pebbly to coarse-grained sands; no known coal seams of any significance.|siliciclastic sedimentary rock|||N||17-JAN-23
Yat Nat Ignimbrite|40705|||||Yes|Formation, beds|Formal|Other new published name|Defined|Rocklands Volcanic Group|39879|||Lower Devonian||||eruption|Lower Devonian||||||||No|23309|50154||||||Quartz feldspar ignimbrite: pumice-rich, lithic-poor, up to 10% orthoclase phenocrysts up to 3mm in a densely welded matrix|acid volcanic rock|||N||17-JAN-23
Yaugher Volcanic Group|77105|Yaugher Volcanics|27631|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Chattian||||eruption|Chattian||||||||No|65715||||||Same as Yaugher Volcanics. Published in RefID 65715. VandenBerg (2009) Rock unit names in the Bendigo Zone portion of central Victoria, Seamless Geology project. GSV report 129, p14, 15. Also RefID 66002 Vandenberg (2009) GSV Report 130, p10|Olivine basalt, tuff, microgabbro, minor sedimentary rocks.|basic volcanic rock|||N||17-JAN-23
Yea Formation|24139|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pridoli||||deposition|Ludlow||||||||No|38787||Garratt M.|26-NOV-76|||Considered as part of the lithologically variable Norton Gully Sandstone in the Yea area.|||||N||17-JAN-23
Yeerung River Volcanics|30049|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Emsian||||eruption|Emsian|||||||VIC|No|43315||Magart A., Hendrickx M., Willman C., VandenBerg A.H.M.|23-JAN-96|||Quartz feldspar ignimbrites in Murrungowar 1:100 000 sheet area (8622). Type locality along the Yeerung River at AMG 6565-58159. This is a Snowy River Volcanics equivalent. See also abbreviation  - Yeerung Volcanics.|Volcanic breccia: lithic clasts of felsic lava and minor quartzite and limestone; pyroclastic or epiclastic deposit; quartz-feldspar porphyry subvolcanic intrusive|acid volcanic rock|acid intrusive rock||N||17-JAN-23
Yellingbo Porphyry|76921|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||eruption|Upper Devonian||||||||No|66244||||||A series of small ring dykes NE of Melbourne, previously shown as un-named felsic porphyry dykes; non-continuous and linked by faults including the Yellingbo Fault running NE from the Dandenong Igneous Complex. Age implied from map symbol (Djy) given.|Mid-dark grey quartz-feldspar porphyry with large quartz and smaller feldspar phenocrysts, and minor biotite in a fine-grained groundmass.|acid intrusive rock|||Y||17-JAN-23
Yellow Bluff beds|20932|Yellow Bluff Beds|20931|||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Messinian|||||Tortonian||||||||No|41043||||||See also Yellow Bluff Beds.|||||N||17-JAN-23
Yellow Waterholes Ignimbrite|23302|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Tara Range Subgroup|30050|||Lochkovian||||eruption|Lochkovian||||||400||No|43206||VandenBerg A.H.M., Orth K.|22-MAR-89|||Murrindal area. Previously considered part of the Little River Subgroup (Orth et al. 1995); included in the Tara Range Subgroup by VandenBerg et al. (2000). Also from GSV state seamless geology (2014), map symbol Dsgj.|Pyroclastics, pyroclastic mass flows, and ignimbrite with interbedded fall deposits and fluvial sed's.|acid volcanic rock|||N||17-JAN-23
Yeringberg Formation|20967|Yeringberg Sandstone|20969|||Yes|Formation, beds|Formal|Variation of published name|Described|Walhalla Group|19233|||Emsian||||deposition|Emsian||||||1000||No|41585||||||Does not appear in Geology of Victoria (2003): possibly no longer current? Similar relationship to Wilson Creek Shale as the new Woori Yallock Formation of Morand (2010).|Sandstone; richly fossiliferous mudstone and calcareous siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yeronga Basalt|40915|||||Yes|Formation, beds|Formal|Other new published name|Defined|Newer Volcanics|14099|||Pliocene||||eruption|Miocene||||||25||No|60599|60599||||||Lava flow: olivine basalt; olivine, plagioclase and clinopyroxene phenocrysts; moderately vesicular (60592). Basaltic lava flow: high frequency, moderately magnetic response (reversely magnetised, -125 nT); low K, Th, U (60597).|basic volcanic rock|||N||17-JAN-23
Yeungroon Granite|37795|Yeungroon granodiorite|31831|||Yes|Formation, beds|Formal|Variation of published name|Described|||Coonooer Suite|37536|Lower Devonian|370|1||intrusion|Lower Devonian||||||||No|60491||||||Age updated from GSV data (HG, Dec 2005). GSV Code: G362|Pale cream to grey; coarse grained, granite, reduced S-type; porphyritic; plagioclase crystals to 3 cm in length; rare muscovite rich enclaves to 5 cm diameter|acid intrusive rock|||Y|S-type|17-JAN-23
Yielima Member|20980|Yielima Sand Member|20981|||Yes|Member, phase|Formal|Other new published name|Briefly described|Shepparton Formation|25474|||Pleistocene||||deposition|Pleistocene||||||||No|35091||||||See definitiion under Yielima Sand Member.|Unconsolidated, poorly consolidated and occasionally cemented, feldspathic and micaceous sand and clayey sand; light brown, reddish brown, grey and white in colour, fine sand to gravel sized and often showing upward fining cycles.|siliciclastic sedimentary rock|||N||17-JAN-23
Yoke Up Creek Granite|30508|Thurra Granite|37797|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Lower Devonian||||intrusion|Lower Devonian||||||||No|22878||Simpson C.|19-SEP-96|||Craigie 1:100 000 sheet area. Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G18|Highly magnetic, pale grey, coarse grained, massive, leucocratic, biotite-poor granite|acid intrusive rock|||Y|I-type|17-JAN-23
You Yangs Granite|21013|You Yangs granite|21014|||Yes|Formation, beds|Formal|Other new published name|Described|||Tynong Suite|18760|Upper Devonian|365|2||intrusion|Upper Devonian|365|18||||||No|32001||||||Name introduced informally as You Yangs granite by Skeats (1908). Age and lithology updated from GSV data (HG, Dec 2005). GSV Code: G277. Regarded as senior synonym of Dog Rocks Granite (VandenBerg, 2009).|Hornblende granite: coarse grained, K-feldspar phyric; I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Youarang Granite|27633|Warby Range Granite|26984|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Upper Devonian||||intrusion|Middle Devonian||||||||No|42726||||||Of the Warby Range Batholith. GSV Special Publication (2000) p346. Age updated from GSV data (HG, Dec 2005). GSV Code: G208|Biotite-cordierite granite: coarse-grained, porphyritic in both feldspars (K-feldspar to 40 mm, plagioclase to 30 mm), with miarolitic cavities and abundant tourmaline nodules.|acid intrusive rock|||Y|S-type|17-JAN-23
Younger Volcanics|29196|Younger Basalt|21026|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||eruption|||||||||No|31424||||||Informal name, or misspelling of Newer Volcanics?|Volcanics|igneous rock|||N||17-JAN-23
Yowang granite|21037|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|37385|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Ythan Creek Rhyodacite|35517|Warburton Quartz Rhyodacite|19446|||Yes|Formation, beds|Formal|Resvd name published|Described|Acheron Subgroup|81|||Upper Devonian||||eruption|Upper Devonian||||||||No|23309||VandenBerg A. H. M.|22-MAY-00|||To be used in the Tasman Fold Belt System in Victoria Special Publication.|Rhyolite to rhyodacite: ignimbrite; recrystallized; contains large unbroken phenocrysts of plagioclase, small quartz, aggregates of secondary biotite in a fine devitrified groundmass; flow-banded.|acid volcanic rock|||N||17-JAN-23
Yungabulla Formation|77292|||||Yes|Formation, beds|Formal|Other new published name|Defined|Smokers Creek Volcanic Subgroup|69402|||Pliocene||||deposition|Miocene|||||||VIC|No|65715|||||||Variable lithofacies, but predominantly pyroclastics, mostly trachyte; diamictic tuff, lapilli deposits.|intermediate volcanic rock|||N||17-JAN-23
Yungaburra Formation|74847|Yungaburra Complex|73180|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pliocene||||deposition|Miocene||||||||No|64619||||||See also Yungaburra Complex.|Diamictic tuff, lapilli deposits; cream to pink; lapilli and blocks of trachyte, hornfels and occasionally mugearite in massive ash matrix; poorly consolidated to lithified; lapilli deposits stratified and mod'erately sorted; pyroclastic deposits.|igneous volcanic rock|||N||17-JAN-23
Yuppeckiar|79012|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Cambrian|||||Cambrian||||||||No|||Cayley, R. (GSV)|15-JAN-15|||Hamilton map sheet area 7322 (place name is on 7422 Willaura). Cambrian igneous intrusive rock unit within the Bunnugal Belt, a fault slice of Miga Arc volcanics.  Where to be published = 2015, in a GSV technical report published to accompany publication of maps and other data from the Willaura Copper project.|||||Y||17-JAN-23
Zeally Limestone Member|21078|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Puebla Formation|28257|||Miocene|15|||deposition|Miocene|18|||||||No|48911||||||See variation Zeally Limestone.|Yellow polyzoal limestone.|carbonate sedimentary rock|||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
aplite dyke 83219|83219|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||inferred||Silurian|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. From GSV state seamless geology (2014) and (2011) map symbol Y-ap.|Aplite dyke|acid intrusive rock|||Y||17-JAN-23
basalt, magnetic 78041|78041|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||||||eruption|||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Victoria 1:250 000 Seamless Geology map 2011, Geoscience Victoria.|Basalt: dark grey to black, fine grained; contains olivine, pyroxene; occurs as small plugs and rare dykes; highly to intensely magnetic|basic volcanic rock|||N||17-JAN-23
basalt, microgabbro 78038|78038|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous|||inferred|intrusion|Cretaceous|||inferred|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014), Victoria 1:250 000 Seamless Geology map 2011, Geoscience Victoria. Cretaceous, intrusive rocks. Map symbol Kxi. Used in GA Solid Geology Mesozoic layer 2023.|Basalt, olivine microgabbro; dykes and plugs|basic intrusive rock|basic volcanic rock||Y||15-AUG-23
basalt, nephelinite, diorite 78040|78040|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||||||eruption|||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Victoria 1:250 000 Seamless Geology map 2011, Geoscience Victoria. Map symbol used suggests Mesozoic age inferred.|Volcanic plugs and dykes: basaltic, nephelinitic, dioritic; normally and reversely magnetised (subsurface only)|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
basalt, phonolite 78039|78039|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleogene|||inferred|eruption|Paleogene|||inferred|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Victoria 1:250 000 Seamless Geology map 2011, Geoscience Victoria. Paleogene plugs and dykes. Age inferred. Correlated to Mesozoic phonolitic plugs and sills in the vicinity of the Whitlands Volcanic Group. Morand, V.J. 2011. Stratigraphic name changes in Eastern Victoria, Seamless Geology Project. GeoScience Victoria Technical Record 2011/2.|Alkali olivine basalt, picrobasalt, phonolite: Subordinate peridotite enclaves; plugs and dykes.|basic volcanic rock|foid-bearing volcanic rock||N||17-JAN-23
clastic metasedimentary rocks 83087|83087|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted for GA Solid Geology layer. After unit NE1 from Wise, T.W., 2020. Interpreted basement geology to the Murray Basin and surrounds. In SA and Vic and possibly NSW. Base age unknown. May well be older than Neoproterozoic.|Undifferentiated dominantly clastic metasedimentary deposits, intruded by granite, dolerite|metasedimentary siliciclastic rock|||N||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
diorite 83026|83026|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Assumed to be from GSV Stavely data. Shown in spreadsheet as 'Undifferentiated Diorite Silurian'. No information besides name and one age.|Diorite assumed.|intermediate intrusive rock|||Y||17-JAN-23
diorite 83029|83029|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||inferred||Cambrian|||inferred|||||No|||||||Assumed to be from GSV Stavely data. Shown in spreadsheet as 'Unnamed Diorite'. No information besides name and one age.|Diorite assumed.|intermediate intrusive rock|||Y||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
felsic dykes 79718|79718|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous||||intrusion|Silurian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol Y-F.|Felsic dykes: fine to coarse-grained, glassy to porphyritic, greenish-grey to reddish; somewhat variable assemblage of quartz, feldspar, biotite and hornblende in a glassy groundmass|acid igneous rock|||N||17-JAN-23
felsic intrusives 37665|37665|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|||||Late Silurian||||||||No|||||||Unnamed unit to be used for Victoria 1:1million geological map, National Maps Project.|Granites|acid intrusive rock|||Y||17-JAN-23
felsic intrusives 39601|39601|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||||Devonian||||||||No|||||||Felsic intrusive.|Granite, granodiorite, tonalite, quartz diorite, minor gabbro.|basic 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 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 73466|73466|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian||||intrusion|Cambrian||||||||No|||Liu, S.|29-JUN-07|||Informal unit used in the 1:1million surface geology of Australia - Victoria 3rd edition. Also for use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014) and (2011) map symbol -Cg.|Undifferentiated muscovite granite and microgranite, biotite granite; magnetic to non-magnetic|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
gabbro 78036|78036|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian||||intrusion|Cambrian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Age ~530 Ma. Simons, B.A. and Moore, D.H., 2000. Victoria 1:1 000 000 Pre-Permian Geology. Geological Survey of Victoria.|Gabbro|basic intrusive rock|||Y||17-JAN-23
gabbro 78037|78037|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian||||intrusion|Devonian||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013.. Simons, B.A. and Moore, D.H., 2000. Victoria 1:1 000 000 Pre-Permian Geology. Geological Survey of Victoria.|Gabbro|basic intrusive rock|||Y||17-JAN-23
gabbro, dolerite 82972|82972|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Upper Cretaceous|87.5|1.5|isotopic, K/Ar||Upper Cretaceous|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Mornington peninsula region.Olivine gabbro plug (Poowong), olivine dolerite (Krowera). Ages of 87.5 +/-1.5 and 91.7-94.7 Ma (Bowen, 1975; McKenzie et al., 1984).|Olivine gabbro plug, olivine dolerite.|basic intrusive rock|||Y||17-JAN-23
granite 83027|83027|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred||Silurian|||inferred|||||No|||||||Assumed to be from GSV Stavely data. Shown in spreadsheet as 'Undifferentiated Granite Silurian'. No information besides name and one age.|Granite assumed.|acid intrusive rock|||Y||17-JAN-23
granite 83028|83028|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||inferred||Cambrian|||inferred|||||No|||||||Assumed to be from GSV Stavely data. Shown in spreadsheet as 'Undifferentiated Magmatic Granite'. No information besides name and one age.|Granite.|acid intrusive rock|||Y||17-JAN-23
granite dyke 83218|83218|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Carboniferous|||inferred||Silurian|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. From GSV state seamless geology (2014) and (2011) map symbol Y-gr.|Granite dyke.|acid intrusive rock|||Y||05-SEP-23
granodiorite porphyry 79661|79661|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Middle Devonian||||eruption|Middle Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014), map symbol Dmg.|Granodiorite porphyry: dark grey; fine-grained with phenocrysts of quartz, feldspar, biotite.|acid intrusive rock|||Y||17-JAN-23
intermediate dykes #83920|83920|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||||Paleozoic||||||||No|||||||Surface/subsurface unit interpreted by Guillaume Sanchez for GA Solid Geology layer. GSV seamless 1:250k 'dyke,intermediate'  (Y-in). Age poorly constrained - Phanerozoic.|Intermediate dyke.||||Y||04-AUG-23
intermediate volcanic rocks #83927|83927|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||||Cambrian||||||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. After Simons, B.A. and Moore, D.H., 2000. Victoria 1:1 000 000 Pre-Permian Geology. Geological Survey of Victoria,  probably Vic unit -Cvi.|Dominantly intermediate volcanics.||||N||29-AUG-23
intrusive breccia 79660|79660|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Lower Devonian|||inferred||Lower Devonian|||inferred|||||No|||||||For use by Songfa Liu in GA Pre-Cz Geology maps, also GA Paleozoic Solid Geology 2022.. From GSV state seamless geology (2014), map symbol Dk.|Breccia: angular schist and hornfels fragments aligned in a matrix of quartz, fractured schist and granodiorite|acid 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
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
leucogranite 79659|79659|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Devonian|||||Lower Devonian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. From GSV state seamless geology (2014), map symbol Dgu.|leucogranite: grey, medium grained; contains minor biotite; massive; nonmagnetic.|acid intrusive rock|||Y||17-JAN-23
mafic dykes, plugs #83921|83921|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||||Paleozoic||||||||No|||||||Surface/subsurface unit interpreted by Guillaume Sanchez for GA Solid Geology layer. GSV seamless 1:250k 'dykes and plugs,basalt' (Y-bs). Occurs as small plugs and rare dykes. highly to intensely magnetic. Age poorly constrained - Phanerozoic.|Basalt, dark grey to black, fine grained. Contains olivine, pyroxene.||||Y||04-AUG-23
mafic to intermediate dykes, plugs 83086|83086|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted by Guillaume Sanchez for GA Solid Geology layer. GSV 'dykes and plugs (Y-Mzv): Mesozoic plugs and dykes', subsurface only. Probably from  Stavely solid geology interpretation (Solid Geology GA-GSV).|Volcanic plugs and dykes: basaltic, nephelinitic, dioritic; normally and reversely magnetised|basic volcanic rock|foid-bearing volcanic rock||Y||17-JAN-23
mafic/ultramafic igneous rocks 83220|83220|mafic/ultramafic 78035|78035|||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian|||inferred||Neoproterozoic|||inferred|||||No|||||||Surface/subsurface unit interpreted for GA Solid Geology layer. After Simons, B.A. and Moore, D.H., 2000. Victoria 1:1 000 000 Pre-Permian Geology. Geological Survey of Victoria,  probably unit -Cvu.|Dominantly mafic/ultramafic volcanic rocks.|basic igneous rock|ultramafic igneous rock||U||17-JAN-23
metamorphosed mafic volcanics 79638|79638|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian||||eruption|Cambrian||||||||No|||||||For use by Songfa Liu in Pre-Cz Geology maps. Contact metamorphosed mafic rocks. From GSV state seamless geology (2014), map symbol -Cxv.|Metabasic hornfels and schist.|metamorphosed basic igneous rock|||N||17-JAN-23
metamorphosed ultramafic rocks - biotite zone #83914|83914|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|521|4|||Neoproterozoic|642.5|3.9||||||No|||||||Used in GSV 2014 Seamless Geology 1:50 000 geology dataset (RefID 74937), Morand et al. 2003 GSV report 123 (RefID 50154), and GA Alkaline Rocks dataset. An age range similar to the Truro Volcanics is assigned herein. However, these rocks may be older than the Truro Volcanics, lying at the upper end of this range.|Massive serpentine-talc-chlorite-magnetite rock and minor talc schist.||||U||11-JUN-23
metamorphosed ultramafic rocks - garnet zone #83916|83916|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|521|4|||Neoproterozoic|642.5|3.9||||||No|||||||Used in GSV 2014 Seamless Geology 1:50 000 geology dataset (RefID 74937), Morand et al. 2003 GSV report 123 (RefID 50154), and GA Alkaline Rocks dataset. An age range similar to the Truro Volcanics is assigned herein. However, these rocks may be older than the Truro Volcanics, lying at the upper end of this range. Probably in Wando River and Beauty Creek area.|Hornblende-chlorite schist, talc-actinolitic hornblende schist.||||U||11-JUN-23
metamorphosed ultramafic rocks - sillimanite zone #83915|83915|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|521|4|||Neoproterozoic|642.5|3.9||||||No|||||||Used in GSV 2014 Seamless Geology 1:50 000 geology dataset (RefID 74937), Morand et al. 2003 GSV report 123 (RefID 50154), and GA Alkaline Rocks dataset. An age range similar to the Truro Volcanics is assigned herein. However, these rocks may be older than the Truro Volcanics, lying at the upper end of this range. Probably in Yarramyljup Creek area.|Actinolitic hornblende-chlorite schist with minor talc and magnesite.||||U||11-JUN-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
mylonite 37699|37699|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian||||deformation|Silurian||||||||No|||||||Lithology referring to an unnamed unit to be used for Victoria 1:1million geological map, National Maps Project.|Fault rock: mylonite, cataclasite|fault or shear rock|||N||17-JAN-23
rhyolite 83025|83025|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Devonian|||inferred||Devonian|||inferred|||||No|||||||Assumed to be from GSV Stavely data. Shown in spreadsheet as 'Rhyolite (Dre)'. No information besides name and one age.|Rhyolite assumed.|acid volcanic rock|||N||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, amphibolite, calc-silicate rocks 83024|83024|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Cambrian|||inferred|||||No|||||||Used in GSV VIC SeamlessGeology_2014S as 'schist, amphibolite and calc-silicate (-Cmgu): generic'. Used in GA Solid Geology layer.|Mica schist with variable amounts of garnet, staurolite, andalusite and sillimanite; amphibolite; calc-silicate rock; rare ultramafic schist.|foliated metamorphic rock|high grade metamorphic rock||N||17-JAN-23
sedimentary rocks #83923|83923|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Devonian|||||Devonian||||||||No|||||||Used in GSV pre-permian 1999 map, refID 23308, probably as Dsc and Dsm, and for Solid geology DCD area - Paleozoic layer. Compare with stratno 82916 used  in GSNSW seamless geology dataset 2021 as 'Ungrouped Devonian sedimentary rocks', Dus.|Conglomerate, sandstone, mudstone.||||N||04-AUG-23
sedimentary rocks #83924|83924|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||||Neoproterozoic||||||||No|||||||Used in GSV pre-permian 1999 map refID 23308. Used in GA Solid geology DCD area - Neoproterozoic layer. Probably previously included in stratno 79416 Neoproterozoic to Ordovician sediments, volcanics and intrusives in Vic and SA.|Sedimentary rocks.||||N||04-AUG-23
sedimentary rocks #83925|83925|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Early Silurian|||||Early Silurian||||||||No|||||||Used in GSV pre-Permian 1999 map refID 23308. Used in GA Solid geology DCD area - Paleozoic layer.|Deep marine sedimentary rocks.||||N||04-AUG-23
sedimentary rocks 37666|37666|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian||||deposition|Late Silurian||||||||No|||||||Unnamed unit to be used for Victoria 1:1million geological map, National Maps Project.|Undifferentiated marine sandstone, mudstone, including rocks not differentiated in hornfels aureoles|siliciclastic sedimentary rock|||N||30-SEP-23
sedimentary rocks 37682|37682|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician||||deposition|Ordovician||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.|Undifferentiated fine- to medium-grained sediments and metasediments; sandstone, greywacke, mudstone, black shale, slate, phyllite, minor conglomerate|siliciclastic sedimentary rock|||N||30-SEP-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 68927|68927|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Pliocene||||deposition|Miocene||||||||No|||Ollie Raymond|19-FEB-07|||Lithology referring to an unnamed unit to be used for Victoria 1:1 million geological map, National Maps Project|Fluvial to shallow marine gravel, sand, silt, conglomerate, sandstone, siltstone; commonly poorly consolidated and/or ferruginised; includes Hanson Plain Sand, Haunted Hills Gravel, Brighton Group and unnamed sediments|siliciclastic sedimentary rock|||N||17-JAN-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
trachyte, phonolite 79701|79701|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous|||||Jurassic||||||||No|||||||Used for 'Pre-Cz geology, NSW & Vic' .From GSV state seamless geology (2014) Map symbol Jxt.|Trachyte and phonolite: grey to light brown, either plain or with diffuse spots; plugs and sills.|intermediate volcanic rock|foid-bearing volcanic rock||N||14-JUN-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
