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
81-Mile Vent Lamproite|3|81-Mile Vent lamproite|4|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Abattoir East Gabbro|77868|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Differentiated gabbro within the Black Flag Group. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Gabbro; tholeiitic; differentiated; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Abattoir West Gabbro|77869|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Neoarchean||||intrusion|Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Intrudes the Black Flag Group; found west of the Abattoir East Gabbro; metamorphosed. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Gabbro; differentiated; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Abbotshall Chert|35663|Abbotshall Beds|30|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Archean||||deposition|Archean||||||||No|23136|||||||||||N||17-JAN-23
Abdul Sandstone|80523|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Kennedy Group|9434|||Late Permian|||||Late Permian|||||||WA|No|13615||||||In Onslow 1, Abdul's Dam 1, Ruby 1. published in: CROSTELLA, A., IASKY, R. P., BLUNDELL, K. A., YASIN, A. R., and GHORI, K. A. R., 2000, Petroleum geology of the Peedamullah Shelf and Onslow Terrace, Northern Carnarvon Basin, Western Australia: Western Australia Geological Survey, Report 73, p. 17.|Clear, translucent and milky white, fine- to medium-grained sandstone; rarely coarse-grained, well-sorted, minor microcrystalline limestone.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Aberdare Dolerite|21097|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||intrusion|||||||700||No|69035||Clout J.M.F., Cleghorn J.H., Eaton P.C.|15-MAR-89||||Weakly differentiated gabbroic sill.|basic intrusive rock|||Y||17-JAN-23
Abney Sandstone|59|Abney Sandstone Member|58|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||||No|45038||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Abrakurrie Limestone|27099|||||Yes|Formation, beds|Formal|Other new published name|Defined|Eucla Group|6345|||Aquitanian|||biozone|deposition|Chattian||||||120|WA|No|65942|22626||||||Yellowish coarse-grained bryozoan calcarenite and calcirudite, distinctly cyclic, and contains numerous hardgrounds; locally dolomitised.|carbonate sedimentary rock|||N||17-JAN-23
Abydos Monzogranite|37149|Abydos Adamellite|25755|||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2930|||intrusion|Mesoarchean|2945|||||||No|61252||||||Variation of Abydos Adamellite (Defined). Abydos Adamellite said to be intruded by Woodstock Adamellite.|Porphyritic feldspar-quartz-biotite-titanite metamonzogranite; moderately to strongly foliated.|acid intrusive rock|foliated metamorphic rock||Y||17-JAN-23
Abyssinia Well Orthogneiss|68671|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tambina Supersuite|68742|Archean|3425|4|||Archean|3425|4||||||No|63441|63441|Van Kranendonk, M.  (GSWA)|04-APR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Intrudes Callina Supersuite and North Shaw Suite. Age: 3425+/-4Ma.|Foliated to weakly gneissic,medium-grained to weakly porphyritic blue-grey tonalite through monzogranite; commonly marked by lit-par-lit sheets of white leucogranite.|acid intrusive rock|metamorphosed acid igneous rock||N||17-JAN-23
Acacia Sandstone Member|72737|Acacia Sandstone|40303|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Willara Formation|20070|||Middle Ordovician||||deposition|Middle Ordovician||||||||No|62982|||||||Quartz sandstone, grains subangular fine to well-rounded medium.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Agnes Venture Slate|155|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Woolyeenyer Formation|20591|||Archean||||deposition|Archean||||||||No|42195|||||||||||N||17-JAN-23
Agnew Komatiite|77940|Agnew komatiite|42471|||Yes|Formation, beds|Reserved|Variation of published name|Fully described|||||Archean||||eruption|Archean|2705||inferred|||100||No|69586||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1,  Wildara 3041. Ultramafic volcanic rock, undivided; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Spinifex-orthocumulate (1m thick komatiite sheet flows), massive ultrabasic cumulate (intrusion?). Fragmental komatiite commonly at top contact. Subaqueous komatiite flows (and comagmatic intrusion?); fragmental komatiite interpreted as cataclasite.|metamorphosed ultramafic rock|||U||17-JAN-23
Ahern Formation|30154|Boll Sandstone|2127|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Cryogenian||||deposition|Neoproterozoic||||||200||No|43853||Thorne A.M.|14-MAR-96|||Turkey Creek, Bow 1:100 000 sheet areas, east Kimberley. Previously Boll Sandstone. c. 800 Ma. Age updated by I.Sweet.|Fine- to coarse-grained quartz sandstone; minor pebbly sandstone, conglomerate, and siltstone.|siliciclastic sedimentary rock|||N||23-MAR-23
Aileron Province - granite 79877|79877|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area. See also 'Arunta Block granitoids 78447', also Qld.|Granite.|acid intrusive rock|||Y||17-JAN-23
Ainslie Volcanics (WA)|4193|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Neoproterozoic||||eruption|Mesoproterozoic|1000|||||||No|31393|||||||||||N||17-JAN-23
Airfield Granodiorite|21103|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43854||Sheppard S.|23-FEB-95|||East Kimberley region, McIntosh 1:100 000 sheet area.|Medium- to coarse-grained, porphyritic biotite granodiorite and monzogranite.|acid intrusive rock|||Y||17-JAN-23
Airlie Member|187|||||Yes|Member, phase|Formal|Other new published name|Fully described|||||Berriasian||||deposition|Berriasian||||||||No|42598|||||||||||N||17-JAN-23
Airport Creek Formation|24150|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pleistocene||||deposition|Pleistocene|||||8||WA|Yes|36483|36483|Semeniuk, V.|08-JAN-76|Johnstone, M.H.||Essentially a lithified to partly lithified tidal flat sedimentary accumulation. Average exposed thickness: >3m.|Interlayered grey to buff calcareous and siliciclastic laminates, sandstone and sponge spicules in the sandstones.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Ajana Formation|31387|||||Yes|Formation, beds|Formal|Other new published name|Defined|Dirk Hartog Group|37057|||Wenlock||||deposition|Hirnantian||||||435|WA|No|1943||||||Locally, moderate to good petroleum source potential.|Multicoloured siltstone and shale at base; dolomitic and 'salty'. Grades up to shaly dolostones. Ooid limestones and dolostones in upper cycles.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Alabama Sandstone|41023|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|24196||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Albany Granite|213|Albany granite|217|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Mesoproterozoic|1174|12|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Mesoproterozoic|1300|||||||No|31393||||||Probably same rock as Albany Adamellite. Dimension stone name. Quarried from the Mount Melville area. WA. It appears that GSWA now (2009) prefers this version of the name over Albany Adamellite. Intruded into the Nornalup Zone during Stage I of the Albany-Fraser Orogen|Grey, megacrystic granitoid.|acid intrusive rock|||Y||17-JAN-23
Albert Edward Group|24651|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Ediacaran|560||inferred, overlying unit|deposition|Ediacaran|600||inferred, underlying unit||2000||WA|No|44317|45140|||||Ruby Plains 1:100 000 sheet area.  Age from Gordon Downs 250K (2nd ed) limited to between the King Leopold Orogeny (~560Ma) and underlying Duerdin Group (~600Ma).|Fine- to medium-grained quartz sandstone; minor pebbly sandstone and conglomerate; minor carbonates.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Alcurra Dolerite|39599|Alcurra Dyke Swarm|29763|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Warakurna Supersuite|73257|Stenian|1054|14|isotopic, Rb/Sr|intrusion|Stenian|1085|2|isotopic, Ar/Ar||||NT|Yes|61154|61154|Edgoose, C.|03-AUG-92|Kruse, P.D.|31-OCT-03|See also Alcurra dolerite. Also included in 'post-Musgravian mafic dykes, sills, plugs 79298' in 1:2.5million national dataset.|Dolerite in dykes, sills, or plugs, with olivine gabbro, olivine norite, mesocratic orthopyroxene(-olivine) ferronorite to ferrodiorite.|basic intrusive rock|||Y||11-OCT-23
Alexander Formation|25758|Fraser River beds|6890|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Kimmeridgian|||inferred, biostratigraphic correlation|deposition|Oxfordian|||inferred, biostratigraphic correlation||20|219|WA|No|44404|45153|||||Previously included in Fraser River beds. See also Lexicon. SE51-11,12. Formerly considered part of Edgar Range Group.|Fine to medium grained sandstone, interbedded mudstone; bioturbated; minor conglomerate lenses; fossiliferous.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Alicia Granite|39341|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2693|3|isotopic, Pb/Pb|||||No|24091||||||LEONORA 1:250 000, WEEBO 1:100 000.||acid intrusive rock|||Y|I-type|17-JAN-23
Alinga Formation|271|Alinga Beds""|270|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Winning Group|20259|||Albian||||deposition|Albian||||||15||No|45015||||||See also Lexicon.|Glauconite-rich clayey siltstone to greensand, rarely exposed.|siliciclastic sedimentary rock|||N||17-JAN-23
Allanson Sandstone|23326|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Collie Group|4345|||Kungurian||||deposition|Artinskian||||||||No|42711||Le Blanc Smith G.|02-MAY-91|||See also misspelling Allandale Sandstone, WA, which indicates Kungurian age (RefID 64630, 2008)|Poorly sorted feldspathic sandstone; lesser pebble conglomerate, siltstone, carbonaceous; local coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||23-MAR-23
Amadeus Basin - sedimentary rocks 83721|83721|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Larapinta Group|10184|||Ordovician|||inferred, biostratigraphic correlation||Ordovician|||inferred, biostratigraphic correlation|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Ordovician sedimentary rocks, Amadeus Basin' GSWA map symbol O-LA-kla. Also surafce/ubsurface unit interpreted by Songfa Liu for the Paleozoic solid geology of Australia.|Pink to pale-grey, coarse-grained calcarenite, and rare sandstone; abundant fossil fragments|carbonate sedimentary rock|||N||19-JAN-23
Amhurst Metamorphics|34450|Amherst Metamorphics|30672|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Orosirian|1805||||Orosirian|1835|||||||No|23601|||||| Age: <1865-1850Ma. In the Western Zone of the Lamboo Complex.|Biotite-hornblende granodiorite gneiss, and biotite-andalusite-garnet-cordierite monzogranitic gneiss; inclusions of metasedimentary and mafic meta-igneous rock.|metamorphosed acid igneous rock|metasedimentary rock||Y||17-JAN-23
Amhurst Metamorphics - granitoids|74332|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Amhurst Metamorphics|34450|||Orosirian|||||Orosirian||||||||No|||||||Metamorphosed equivalents of Neville Granodiorite.|Inclusion-rich biotite-hornblende granodiorite gneiss and garnet-cordierite-andalusite-sillimanite-biotite monzogranitic gneiss;|foliated metamorphic rock|||Y||17-JAN-23
Amhurst Metamorphics - schist and gneiss|74333|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Amhurst Metamorphics|34450|||Orosirian|||||Orosirian||||||||No||||||||Medium to high grade metasediments and granitoids, sillimanite-garnet-cordierite-K-feldspar-plagioclase schist, granofels and migmatite: metamorphosed equivalent of Marboo Formation|metasedimentary siliciclastic rock|high grade metamorphic rock||N||17-JAN-23
Amputjuta Dacite|35317|Umputjutu Dacite|33814|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|||Pottoyu Granite Suite|33649|Stenian||||eruption|Stenian|1153|3|isotopic, Pb/Pb||||NT|Yes|50321|65256|Edgoose C., Close D.|23-NOV-99|Kruse, P.D.|21-JAN-02|Bloods Range 1:250 000 map sheet area. Age: 1153+/-3Ma (Pb-Pb). Type Section: 24 56' 53.04'' S, 129 05' 10.25''E (WGS84). Underlies Dean Quartzite in the Mannanana Range. Within the Pitjantjatjara Supersuite.|Finely porphyritic hypabyssal dacite; less abundant equigranular leucogranite.|acid volcanic rock|||N||17-JAN-23
Anchor Formation|73998|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Middle Jurassic||||deposition|Upper Jurassic||||||||No|14227||||||Geological province: Exmouth Sub-basin.|Marine shales.|fine grained siliciclastic rock|||N||17-JAN-23
Anderson Formation|25762|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Serpukhovian|||biozone|deposition|Tournaisian||||||1800|WA|No|44040|45153|||||Of McWhae et al (1959). See also Lexicon. Previously shown as part of Fairfield Group, but this was probably misinterpretation of a figure. Oil bearing in the Lloyd field; sealed by intraformational shales. Shown on 2009 Canning Basin Bizonation and Stratigraphy chart as Tournasian-Visean, also in 2017 ref..|Sandstone, siltstone, shale, minor limestone, dolomite, anhydrite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Andover Intrusion|31682|Andover Complex|429|||Yes|Formation, beds|Formal|Variation of published name|Described|||Orpheus Supersuite|68743|Mesoarchean|2925|||intrusion|Mesoarchean|3016|||||||No|43822||||||Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).  Age :c.3016Ma.|Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite, and minor anorthosite; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Angalarri Siltstone|437|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Auvergne Group|787|||Cryogenian|838|80|isotopic, Rb/Sr|deposition|Cryogenian|1147|26|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|300|753|NT|No|45022|48938|||||Age: 838 +/-80Ma (Rb-Sr, Webb and Page 1977)(controversial?) . Formerly shown as Calymmian but reason not clear. Group is Neoproterozoic. Age is Adelaidean. See also the misspelt Angalarri Sandstone. Victoria Basin.|Siltstone,  interbeds of fine sandstone, shale; minor dolostone and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Angas Hills Formation|79060|Angas Hills beds|75569|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Early Cambrian|||inferred, geological correlation|deposition|Ediacaran|||inferred, geological correlation||300||WA|Yes|71088||Haines, P., Allen, H. (GSWA) after Blake & Towner (1974)|25-MAR-15|Barham, M.|25-MAR-15|Proposed publication: Geological Survey of Western Australia Record. Amadeus Basin, Centralian Superbasin.|Interbedded pebble and cobble conglomerate, sandstone, pebbly sandstone and siltstone. Pebble and cobble clasts are typically well rounded; friable clayey sandstone matrix. Minor mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Angel Formation|23335|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Berriasian|||inferred|deposition|Oxfordian|||inferred||||WA|No|40617|40617|R.M.Hocking, H.T.Moors|23-MAY-83|||Ages, relations, lithology updated from GA Timescales Project Feb 2009. Further updated 2015.|Turbidite sandstone and siltstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Angelo Microgranite|21138|||||Yes|Member, phase|Formal|Resvd name published|Described|Koongie Park Formation|9793|Koongie Park Suite|31899|Paleoproterozoic|1800|||intrusion|Paleoproterozoic|1845|||||||No|23601||Griffin T.J. & Tyler I.M.|14-DEC-92|||East Kimberley Region. In the Central Zone of the Lamboo Complex. GSWA interprets this unit asa  member of the Koongie Park Formation.|Altered medium to fine grained granophyre with local disseminated malachite.|acid intrusive rock|||Y||17-JAN-23
Anjo Sandstone Member|77463|||||Yes|Member, phase|Informal|Other new published name|Mentioned|||||Lower Triassic||||deposition|Lower Triassic||||||||No|67370||||||Unit in Osprey Formation?||siliciclastic sedimentary rock|||N||17-JAN-23
Anketell Formation|464|Anketell Sandstone|465|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Albian|||inferred|deposition|Aptian|||inferred||||WA|No|44998|45153|||||Defined by: Traves & others (1956).|Fine-grained sandstone and siltstone; lesser coarse-grained sandstone and conglomerate.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Anna Plains Sandstone|23337|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Givetian||||deposition|Eifelian||||||||No|40837||P.Lehmann|20-JAN-84|||||siliciclastic sedimentary rock|||N||17-JAN-23
Annabelle Volcanics|36842|Annabel|21139|||Yes|Formation, beds|Formal|Variation of published name|Described|||Ravensthorpe Suite|78594|Mesoarchean|2958|4||eruption|Mesoarchean|2989|11||||||No|23753||||||NB: Ravensthorpe Terrane nomenclature was abandoned (Refid 65487, 2009). Hosts most of the gold and base metal mineralisation in the Ravensthorpe and Cocanarup areas.|Dominant volcaniclastics, and minor lavas: metamorphosed calc-alkaline basalts (10-20%), andesite (50-70%), and dacite|siliciclastic sedimentary rock|intermediate volcanic rock||N||18-JUL-23
Annean Supersuite|74813|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Neoarchean|2733||||Mesoarchean|2815|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Age range extended back to 2815 Ma to include the Mount Kenneth Suite rocks.|Metagranite, and weakly metamorphosed layered mafic-ultramafic intrusions; granitic rocks commonly foliated.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||18-JUL-23
Antarctic Creek Member|33445|Antarctic Chert Member|70178|||Yes|Member, phase|Formal|Resvd name published|Described|Mount Ada Basalt|26045|||Paleoarchean||||deposition|Paleoarchean|3470|1.9|isotopic, U/Pb|||||No|23755||VanKranendonk M.|19-JAN-99|||North Shaw 1: 100 000 sheet area, east Pilbara. Previously included within Apex Basalt - now established through new age data that it is part of Mount Ada Basalt (per statement from M. Van Kranendonk, Mar06). See also the misnamed Antarctic Chert Member.|Lapilli tuff, felsic porcellanite, carbonate, arenite, conglomerate, chert, jaspilite, impact spherule layer; metamorphosed.|metamorphic rock|non-carbonate chemical or biochemical sedimentary rock||N||23-JUN-23
Anthiby Formation|79992|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Turee Creek Group|18702|||Rhyacian|||||Rhyacian|2208||inferred, underlying unit||71|90|WA|Yes|72712||Martin, D. (GSWA)|17-JUL-17|||Renamed from Cajuput Member reservation. Map sheet SF50-11 Mount Bruce, 2352 Rocklea 1:100k. Nearest Town: Paraburdoo. The Anthiby Member is proposed for a 90m-thick, unconformity-bound, siltstone-dominated unit at the top of the Kazput Formation in the Turee Creek Group. The unit has been informally referred to as the 'upper Kazput Formation'. Named after Anthiby Well which is about 35km west of the type section on the HARDEY 1:100k map sheet. Published in GSWA report 203.|Mainly planar-laminated siltstone and mudstone with minor intercalated fine-grained sandstone that is low-angle planar and trough cross-stratified, and also contains hummocky and swaley lamination.|fine grained siliciclastic rock|||N||02-JUN-23
Antrim Plateau Volcanics|488|Antrim Plateau Basalts|487|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Kalkarindji Suite|75724|Middle Cambrian|505|2|isotopic, Ar/Ar|eruption|Early Cambrian|513|12|isotopic, U/Pb-Pb/Pb ion probe||30|1500|WA|No|44965|69445|||||Present name by Traves (1955). U-Pb SHRIMP age 513 +/- 12 Ma. Ar-Ar ages 505 +/- 2 and 508 +/- 2 Ma (Glass and Phillips, 2006). K-Ar age ~510 Ma. Of the Kalkarindji continental flood basalt province. Included in the Kalkarindji Suite in Oct 2009. Locally associated with minor copper mineralisation.|Massive and amygdaloidal tholeiitic basalt and basalt breccia; commonly capped by ferricrete. Agglomerate with brecciated flow tops. Minor sandstone and chert interbeds.|basic volcanic rock|sedimentary rock|intracratonic|N||21-SEP-23
Antrim Plateau Volcanics and Lally Conglomerate|80953|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Miaolingian|505|2|isotopic||Cambrian Series 2|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Flood basalts with lesser siliciclastic sedimentary rocks.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Apex Basalt|25763|||||Yes|Formation, beds|Formal|Other new published name|Defined|Salgash Subgroup|16559|||Paleoarchean|3425|||eruption|Paleoarchean|3460||||3000|4000|WA|No|31309|31309|||||Within the Warrawoona Group (Pilbara Supergroup). Intruded by the Coppin Gap and Mullugunya Granodiorites (Mount Edgar Complex). Wrongly said to include the Antarctic Chert Member [misspelling of Antarctic Creek Member, of older Mount Ada Basalt]. In the North Pole Dome, Pilbara Craton.|Basalt, komatiitic basalt, and serpentinised peridotite; local dolerite sills; minor felsic volcaniclastic rocks and chert; metamorphosed.|metamorphosed basic igneous rock|metasedimentary rock||N||29-JUN-23
Aquitaine Formation|74208|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Wadeye Group|74204|||Bashkirian||||deposition|Bashkirian||||||||No|61542||||||Offshore equivalent of the onshore Point Spring Sandstone - named for a petroleum company and therefore does not adhere to stratigraphical rules/conventions. Geological province: onshore Bonapart Basin/Petrel-Sub-basin.|Fine- to coarse-grained sandstone with a few siltstone interbeds, grading up into siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Aralka Formation|524|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Ediacaran|||inferred, overlying unit|deposition|Cryogenian|658|5|isotopic, Re/Os|deposition||1020|NT|Yes|46865|46865|Preiss W.V., Walter M.R., Coats R.P. and Wells A.T.||Wells, A.T.|01-OCT-77|Unit redefined 29-SEP-2015 by Normington, V.J. and Donnellan, N, and data available here. Redefinition also to be published in: Normington and Donnellan, in prep. Characterisation of the Neoproterozoic stratigraphy of the northeast Amadeus Basin, Northern Territory. Northern Territory Geological Survey Report.  The depositional age(658 Ma) is inferred from Re-Os dating in Wallara 1.|Grey-green to red siltstone and shale; minor interbeds of fine-grained sandstone. Laminated to finely-bedded in metre to dekametre- scale bedsets, exposures are flaggy and platy. Occasionally calcareous or dolomitic|siliciclastic sedimentary rock|||N||17-JAN-23
Arbitration Cove Sandstone Member|538|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Warton Sandstone|19549|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|30897||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Archean felsic volcanics 76504|76504|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2500|||eruption|Neoarchean|2520|||||||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
Archean felsic volcanics 76505|76505|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2750|||eruption|Mesoarchean|2835|||||||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
Archean felsic volcanics 76506|76506|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoarchean|3440|||eruption|Paleoarchean|3480|||||||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
Archean granites 76507|76507|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2500|||intrusion|Neoarchean|2530|||||||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
Archean granites 76508|76508|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2630|||intrusion|Mesoarchean|2850|||||||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
Archean granites 76509|76509|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoarchean|3010|||intrusion|Paleoarchean|3500|||||||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
Archean granulite-facies metamorphics 76511|76511|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Archean|2600||||Archean|3320|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Archean granulite-facies metamorphics 76512|76512|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoarchean|3280||||Paleoarchean|3320|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Archean mafic intrusives 76503|76503|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Archean|2500|||intrusion|Archean|3500|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|||Y||17-JAN-23
Archean mafic volcanics 76500|76500|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2690|||eruption|Neoarchean|2770|||||||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
Archean mafic volcanics 76501|76501|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoarchean|2830|||eruption|Mesoarchean|2840|||||||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
Archean mafic volcanics 76502|76502|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoarchean|3000|||eruption|Paleoarchean|3600|||||||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
Archean sedimentary rocks 76515|76515|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2660|||deposition|Neoarchean|2745|||||||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
Archean sedimentary rocks 76516|76516|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2725|||deposition|Neoarchean|2745|||||||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
Archean sedimentary rocks 76517|76517|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoarchean|2965|||deposition|Paleoarchean|3240|||||||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
Archean to Paleoproterozoic sedimentary rocks 76514|76514|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|2450|||deposition|Neoarchean|2640|||||||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
Arco Formation|74209|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Wadeye Group|74204|||Bashkirian||||deposition|Bashkirian||||||||No|61542||||||Of Wadeye Gp - offshore equiv.of onshore Point Spring Sst. Variously overlies Sunbird+Tanmurra Fms.+ Kingfisher Shale. Named for a petroleum company and therefore does not adhere to stratigraphic rules/conventions.|Lower 62m-thick interval of interbedded siltstone and fine- to very coarse-grained sandstone; up to 5% recrystallised limestone grains, occcasional fossils and common calcite cement; below fine- to coarse- and rarely very coarse-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Areyonga Formation|571|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Cryogenian|660||inferred, geological correlation|deposition|Tonian|876|14|isotopic, U/Pb-Pb/Pb ICP-MS||10|500|NT|Yes|48838|48863|Preiss W.V., Walter M.R., Coats R.P., Wells A.T.||Wells, A.T.|31-OCT-77|Defined 1962,1965. Redefined on 1977 definition card & in J0301/05. Predominantly a NT unit? Correlative of Sturtian glacial succession of Adelaide Geosyncline where Rb-Sr dates have yielded an age of ~730Ma, but duration of the glaciation is now [2016] believed to be from ~720-660 Ma. Redefined 2015. To be published in: VJ Normington and N Donnellan, in prep. Characterisation of the Neoproterozoic stratigraphy of the northeast Amadeus Basin, Northern Territory. Northern Territory Geological Survey Report.|Dominated by glacial diamictite (tillite), with thin interbeds of sandstone, conglomerate, shale and siltstone, and dolostone.|siliciclastic sedimentary rock|||N||17-JAN-23
Argus Igneous Complex|75379|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2738|26|isotopic, U/Pb-Pb/Pb ion probe||Neoarchean|2737|26|isotopic, U/Pb-Pb/Pb ion probe|||||No|66119||Pawley, M. (GSWA)|16-JUL-09|||Rason 1:250k map sheet area. A layered gabbro and anorthosite intrusive complex in the northeast corner of the Yilgarn Craton. The Argus Igneous Complex concordantly intrudes the western part of the Yamarna-Mount Gill greenstone belt, and has been dated at 2738 +/- 26 Ma (GSWA SHRIMP age). The unit is named after a bore (Argus Bore at 51J 560650 6893675) that occurs near the main outcrop of the unit.|Metamorphosed anorthosite; contains interleaved amphibolite. Amphibolite; medium to coarse grained, derived from gabbro; locally interleaved talc--serpentine--chlorite schist.|metamorphosed ultramafic rock|||Y||17-JAN-23
Argyle Lamproite|578|Argyle lamproite|579|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Stenian||||eruption|Stenian|1178||isotopic, Rb/Sr|||||No|41158|||||||Volcaniclastic olivine lamproite intruded by olivine-phlogopite dykes.|exotic composition igneous rock|||Y||17-JAN-23
Arid Basin unit|80989|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|72034||||||Arid Basin.|Psammitic and semipelitic gneiss, locally garnet-rich; interlayered with mafic amphibolite to granulite and granitic gneiss.|metasedimentary siliciclastic rock|||N||17-JAN-23
Aries kimberlite|36759|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|23772||||||Informally named kimberlite pipe. In the Kimberley Block. Originally entered as NT unit, but more likely to be in WA [CEB Mar-2012].|||||Y||17-JAN-23
Armadale Shale|613|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cardup Group|3601|||Neoproterozoic||||deposition|Neoproterozoic||||||483|WA|No|30939|36293|||||Suitable for clay mining.|Black and white shales with minor sandstone and orthoquartzite.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Armanda intrusion|31793|||||Yes|Formation, beds|Informal|Other new published name|Described|||McIntosh Suite|78624|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|43854||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic-ultramafic intrusion; gabbro, leucogabbro, leucogabbronorite, gabbronorite, anorthosite, minor troctolite; some olivine and/or chromitite-bearing; in rhythmic cycles; peridotite and troctolite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Arranoo Member|21152|Arranoo Sandstone Member|630|||Yes|Member, phase|Formal|Resvd name published|Described|Kockatea Shale|9696|||Olenekian||||deposition|Induan||||||||No|43495||G.McGann|22-SEP-81|||Published as Arranoo Sandstone Member in 1988, but both names in use since. Gorter, Nicoll et al. (in prep Mar2009) formally propose to return to original unit name reserved and used in unpublished well completion reports - Arranoo Member. See also misspelt Aranoo Sandstone Member (2013) for age refinement.|A finely-laminated sequence of interbedded fine-grained sandstone, siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Arrino Siltstone|25765|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|36872|36293|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Arrowhead Shale|636|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|41622||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Arrowsmith Sandstone|638|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|36872|36293|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Ascot Formation|693|Ascot beds|694|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Lower Pleistocene||||deposition|Piacenzian||||||30||No|41751||||||See also Ascot beds, Ascot Beds. The informal Jandakot Beds were incorporated into the Ascot Formation by Kendrick et al. (1991).|Marine deposits comprising shelly calcarenites, silty clay and glauconitic clay. Contains abundant molluscan fauna.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Ashbrook Sandstone|34563|Ashbrook|21161|||Yes|Formation, beds|Formal|Resvd name published|Defined|Sue Group|34554|||Kungurian||||deposition|Artinskian||||||262||No|22820|22820|||||Vasse River Coalfields, Perth Basin. See also Ashbrook Coal Measures.|Numerous upward-fining cycles dominated by sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Ashburton Formation|698|Ashburton Beds|696|||Yes|Formation, beds|Formal|Variation of published name|Defined|Wyloo Group|20715|||Statherian|1806|9|isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1829|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|5000|12000|WA|No|44729|44692|||||Defined 1964. (Evans et al 2003; Sircombe 2003). Contains SHRIMP Pb-Pb dated volcanic rocks of 1806 +/- 9 (Nelson, 2003) and 1829 +/- 5 (Sircombe, 2003). Overlain by Capricorn Group dated at 1804 +/- 7. Overlies the June Hill Volcanics in Duck Creek Syncline, but  Ashburton Formation appears to be diachronous and is believed to be older than the volcanics in other areas. Ashburton Basin.|Mudstone, siltstone and thin- to very thick-bedded lithic-quartz sandstone; minor pebble- to cobble-conglomerate, felsic to mafic volcanic rocks, BIF and dolostone. Lower greenschist facies.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||23-JUN-23
Ashburton Formation - metabasalt|74340|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Ashburton Formation|698|||Paleoproterozoic||||eruption|Paleoproterozoic||||||||No||||||||Metabasaltic pillow lava and pillow breccia|basic volcanic rock|igneous volcanic rock||N||17-JAN-23
Ashmore Volcanics|718|Ashmore Volcanic Beds|717|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Troughton Group|18608|||Bathonian|166|||eruption|Hettangian|201||||||WA|No|34363|||||||Altered basalt flows and claystone.|basic volcanic rock|||N||17-JAN-23
Asterias Member|723|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Echuca Shoals Formation|5943|||||||deposition|||||||||No|42053||||||Of Echuca Shoals Formation [GA Browse Basin Biozonation and Stratigraphy Chart 2016]|Medium-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Athena Basalt|77087|||||Yes|Formation, beds|Formal|Resvd name published|Described|Black Flag Group|28372|||Neoarchean||||eruption|Neoarchean|2680|||||||No|70153||Hall, C.(GSWA)|03-AUG-12|||Extrusive metabasalt found on the lowermost parts of the Black Flag Group, in the St Ives Goldfields mining camp. To be published in Electonic and digital 100K East Yilgarn 2013 update, Geological Survey of Western Australia, Department of Mines and Petroleum.|Tholeiitic basalt, massive to pillowed; metamorphosed.|basic volcanic rock|||N||20-AUG-23
Athol Formation|735|Athol formation|736|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Callovian|165|||deposition|Pliensbachian|190||||||WA|No|41732|42615|||||Unit shows different age ranges in different areas. Greatest range in nothern Exmouth and Barrow Sub-basins; limited range in Dampier Sub-basin and Kangaroo Trough. Ages, relations, lithology updated from GA Timescales Project Feb 2009.|Deep marine claystones and shales.|fine grained siliciclastic rock|||N||17-JAN-23
Atley Igneous Complex|74823|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Meeline Suite|74822|Neoarchean|2780|||intrusion|Mesoarchean|2810||||3000|5000||No|44149||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Age: 2780Ma.|Tremolite schist derived from intrusive rock; gabbro with well-developed modal layering; magnetitite units interlayered with gabbro; layered gabbro, serpentinite derived from peridotitic igneous layers. Metamorphosed.|metamorphosed basic igneous rock|||Y||18-JUL-23
Atley Igneous Complex, middle zone|80991|Atley Igneous Complex|74823|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Atley Igneous Complex|74823|||Mesoarchean|||||Mesoarchean||||||||No|72034|||||||Gabbro with well developed modal layering of pyroxene and plagioclase; locally grading into leucogabbro and magnetite-bearing gabbro; metamorphosed. Serpentinite derived from peridotitic igneous layers; locally grades into metapyroxenite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Atley Igneous Complex, upper zone|80992|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Atley Igneous Complex|74823|||Mesoarchean|||||Mesoarchean||||||||No|72034|||||||Magnetitite units interlayered with magnetite- and ilmenite-bearing leucogabbro; modally layered on a metre scale; metamorphosed. Gabbro grading into magnetite- and ilmenite-bearing olivine gabbro, leucogabbro and gabbronorite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Attlee Jaspilite Member|744|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562||||||Age from|||||N||17-JAN-23
Augusta Anorthosite Complex|762|||||Yes|Subgroup|Formal|Other new published name|Described|Leeuwin Complex|10296|||Mesoproterozoic|||||Mesoproterozoic||||||||No|42069|||||||Garnet-bearing hornblende-plagioclase gneiss, garnet anorthosite, layered anorthosite, leucogabbro and gabbro (metamorphosed to amphibolite), and mottled anorthosite|metamorphosed basic igneous rock|basic intrusive rock||Y||17-JAN-23
Austin Downs Supersuite|74824|||||Yes|Supergroup|Formal|Resvd name published|Briefly described|||||Neoarchean|2686||inferred||Neoarchean|2732||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Monzogranite, layered gabbro sills, and dolerite; commonly foliated; metamorphosed.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Austin Formation|772|Austin Greywacke|32752|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian||||deposition|Asselian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-1. See also Austin Member.|||||N||17-JAN-23
Australind Formation|23346|Australind formation|786|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Chibanian||||deposition|Chibanian||||||3|WA|No|40367|40367|Semeniuk, V.|21-MAR-79|||Originally reserved 25-DEC-74?|Four sediment types including brown/orange and grey calcareous mud, brown or grey shelly calcareous mud, brown to cream calcareous sands and lithoclast (carbonate rock fragment) gravel.|sediment|||N||17-JAN-23
Auvergne Group|787|Yambarra Beds|20790|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Neoproterozoic|635||inferred, geological correlation|deposition|Mesoproterozoic|1332|22|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|950|1900|NT|No|32310|48938|||||Most references give age as Neoproterozoic, but a few say Mesoproterozoic (as per unconformably underlying Tijunna Group). Victoria Basin.|Sandstone, siltstone, dolostone, conglomerate, dolarenite, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
BB1|39033|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Grandispora spiculifera|||||Givetian|||||0|2500||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB2|39034|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||STAGE 5|||||Spelaeotriletes ybertii||||||943||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB3|39036|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Kraeuselisporites saeptatus|||||Protohaploxypinus microcorpus|||||0|130||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB4|39038|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Samaropollenites quadrifidus|||||Kraeuselisporites saeptatus|||||0|525||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB5|39040|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Ashmoripollis reducta|||||Samaropollenites quadrifidus|||||0|375||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB6|39041|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Callialasporites turbatus|||||Corollina torosa|||||0|712||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB7|39042|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Contignisporites cooksoniae|||||Callialasporites turbatus|||||0|394||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
BB8a|39043|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Wanaea spectabilis 6cii-iii Subzone|||||Rigaudella aemula 7ai-aii|||||0|362||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT. Original BASEMINAGENAME was 'Wanaea spectabilis Subzone 6ci/ii' but no such zone name exists in Timescale database.||siliciclastic sedimentary rock|||N||17-JAN-23
BB8b|39044|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Omatia montgomeryi 5ci-iii|||||Dingodinium swanense 6a|||||0|38||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.||siliciclastic sedimentary rock|||N||17-JAN-23
BB8c|39045|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Pseudoceratium iehiense 4ci-ii|||||Pseudoceratium iehiense 4ci-iii|||||0|402||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.||siliciclastic sedimentary rock|||N||17-JAN-23
BB9|39046|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Egmontodinium torynum 4ai-4aii|||||Pseudoceratium iehiense 4ci-iii|||||0|315||No|26357||||||Reference: GA REF OREFID = *26357, REFID = 14142 AGSO Record 1997/38.  NOT RefID 26357, which is about onshore drilling near Batchelor , NT.|||||N||17-JAN-23
Babrongan Formation|837|Babrongan beds|28241|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Devonian||||deposition|Upper Devonian||||||300|WA|No|40992|||||||Shale, siltstone, partly calcareous; minor limestone and dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Backdoor Formation|24679|Fords Creek Shale|6804|||Yes|Formation, beds|Formal|Other new published name|Defined|Collier Group|34907|||Stenian|1070||inferred, intrusive relationship|deposition|Ectasian|1400||isotopic, U/Pb||1500|1740|WA|No|29916|24183|||||Within the Bangemall Supergroup. Collier Basin. Three un-named sub-units are mapped separately: thin- to thick-bedded sandstone and siltstone; thin- to thick-bedded sandstone and minor siltstone; thin- to thick-bedded dololutite, dolarenite, dolorudite, dolomitic siltstone, siltstone and sandstone. 150m thick.|Planar-laminated green, maroon and cream-coloured siltstone and mudstone, interbedded with subordinate fine- to very coarse-grained lithic sandstone, dolostone and minor thin chert beds; intruded by dolerite sills.|fine grained siliciclastic rock|carbonate sedimentary rock||N||15-MAY-23
Backdoor Formation - dolomite|74343|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Backdoor Formation|24679|||Stenian||||deposition|Ectasian||||||||No||||||||Dolomite and chert breccia|carbonate sedimentary rock|||N||17-JAN-23
Badgeradda Basin metamorphosed rock 83737|83737|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||inferred||Mesoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Badgeradda Basin metamorphosed unit P_-xmd-mb-BD. May correlate with Badgeradda Group and Nilling Formation. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metamorphosed siliciclastic rock and minor ?mafic volcanic rock.|siliciclastic sedimentary rock|igneous volcanic rock||N||30-JAN-23
Badgeradda Group|863|Badgeradda Beds|32753|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Neoproterozoic|800||||Mesoproterozoic|||||1700|3000|WA|No|48823|45015|||||See also Lexicon.|Comprises folded sandstone, shale and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Baghdad Member|23351|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|41831||A.E.Cockbain|07-JAN-88||||||||N||17-JAN-23
Baines beds|75570|Baines Beds|887|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic||||||1000|WA|Yes|65074||||||Defined on card, 5-OCT-73 as Baines Beds. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 352, 355. May be lateral equivalent of Birrindudu Group. Mesoproterozoic.|Shallow marine medium to thinly bedded, rippled and cross bedded sublithic sandstone and quartz sandstone with a sparse clayey matrix; minor lithic sandstone, greywacke, conglomerate and siltstone, with mudstone at the top|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Baker Formation|911|||||Yes|Formation, beds|Formal|Other new published name|Defined|Byro Group|3230|||Kungurian||||deposition|Artinskian|||||21|90|WA|No|44537|45016|||||See also Lexicon. Type area in SG50-14[?or SG50-01?  - in the Kennedy Range]. Of the Minyala Sub-Group (Byro Group).|Siltstone and black shale; minor interbedded fine-grained sandstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Bald Hill Granodiorite|943|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|40667||||||Possibly not intended as a formal name? Appears to be unpublished elsewhere.||acid intrusive rock|||Y||17-JAN-23
Bald Rock Supersuite|74836|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Neoarchean|2592|||intrusion|Neoarchean|2647|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: c. 2630-2620Ma.|Undeformed monzogranite, syenogranite, and alkali granite; post-tectonic.|acid intrusive rock|||Y||17-JAN-23
Baldwin Formation (WA)|950|Baldwin formation|952|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|32377|||||||||||N||17-JAN-23
Baleine Formation|24169|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Berriasian||||deposition|Tithonian||||||1000|WA|Yes|45153|45153|V.Passmore|02-OCT-75|WA SNSC|14-SEP-79||Chiefly claystone, grey, silty to arenaceous, common traces of glauconite as high as 10% and traces of mica and pyrite.  Towards the east the upper part is interbedded sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Balfour Formation|25772|Balfour Shale|955|||Yes|Formation, beds|Formal|Variation of published name|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|43056|41669||||||Pale grey to green-grey manganiferous shale, fine-grained micaceous, calcareous, and glauconitic sandstone, interbedded red-brown shale, micaceous siltstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Balgara Dolerite|79384|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Rhyacian|||inferred|intrusion|Rhyacian|2208|10|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|10|500|WA|Yes|72034||Martin, D. (GSWA)|10-MAR-16|||Map Sheet SF50-15 Turee Creek, 2551 Snowy Mount 1:100k.  Nearest Town: Paraburdoo. The Balgara Dolerite refers to a suite of c. 2.2Ga dolerite sills that were intruded into the Turee Creek and Shingle Creek Groups, and are petrogenetically related to the Cheela Springs basalt. Balgara Well is located about 4km NNE of one of the localities where these sills were first dated in the Turee Creek Syncline.  Published in GSWA Report 203.|Medium-grained dolerite sills, with poorly exposed chilled margins consisting of fine-grained dolerite.|basic intrusive rock|||N||17-JAN-23
Bali Monzogranite|24684|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42697|||||||Coarse-grained monzogranite with K-feldspar megacrysts; internally massive, intense contact-parallel foliationand local development of protomylonite.|acid intrusive rock|||Y|I-type|17-JAN-23
Balingup Complex|29756|Balingup|21179|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Archean|||||Archean||||||||No|43189||||||Reserved as Balingup, but NLR in 1981.|||||N||17-JAN-23
Ballarat Conglomerate|35671|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|||inferred|deposition|Neoarchean|2695|6||maximum depositional age||||No|23142|||||||Feldspar+/-quartz-phyric dacite content.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Ballard Gneiss|84066|||||Yes|Formation, beds|Processing pending|Other new published name|Mentioned||||||||||||||||||No|||||||Kalgoorlie Terrane. Migmatisation between 2670 +/- 4 Ma and 2667 +/- 15 Ma.|||||N||
Ballinooka inlier|33908|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Archean|||||Archean|2900|||||||No|22449||||||Province not stratigraphic name.|||||N||17-JAN-23
Ballona Dolerite Member|80599|Ballona Dyke|78635|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Bardoc 1:100k map sheet 3137. Dolerite and gabbro; includes cumulate and granophyric differentiates. Part of the Widgiemooltha Large Igneous Province. Intrudes Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS:Wingate, MTD (partial report), Ballona Dolerite Member (P_-_wb-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro; includes cumulate and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Ballythanna Sandstone Member|30078|||||Yes|Member, phase|Formal|Resvd name published|Defined|Callytharra Formation|26448|||Artinskian||||deposition|Sakmarian||||||233|WA|Yes|72910||Mory A.|12-FEB-96|||Type section: Ballythanna 1, 65-298m, Byro Sub-basin. Lat 26deg03'42", Long 115deg40' 11" E.|Fine- to medium-grained sandstone, minor carbonaceous siltstone, locally bioturbated.|siliciclastic sedimentary rock|||N||17-JAN-23
Balpe Lakes Monzogranite|75361|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2643|8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|66113||Hall, C. (GSWA)|09-JUL-09|||Monzogranite with a pinkish colouration. Fine-medium grained equigranular quartz-feldspar-biotite-muscovite granite with a spaced cleavage and mineral lineation trending approximatley 154 plunging 50. Fifteen analyses yield a weighted mean 207Pb*/206Pb* date of 2643 +/- 8 Ma (MSWD = 2.13), interpreted as the age of magmatic crystallization of the monzogranite.|Monzogranite with a pinkish colouration. Fine-medium grained equigranular quartz-feldspar-biotite-muscovite granite with a spaced cleavage and mineral lineation. Massive to weakly foliated; margins may be strongly foliated.|acid intrusive rock|foliated metamorphic rock||Y||17-JAN-23
Balwina Granite|74593|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Frederick Suite|40071|Statherian|1795||inferred|intrusion|Orosirian|1835||inferred|||||No|64277||Tyler, I (GSWA)|24-JUN-08|Hocking, R.|24-JUN-08|Published on the GSWA WATTS 1:100 000 geological map sheet in 2007. Chemical parent (Frederick Suite) is I-type.|Muscovite and biotite monzogranite; locally porphyritic; minor biotite granodiorite; highly magnetic.|acid intrusive rock|||Y|I-type|17-JAN-23
Bamboo Creek Member|36838|Bamboo Creek Porphyry|1016|||Yes|Member, phase|Formal|Variation of published name|Fully described|Hardey Formation|8075|||Neoarchean|2756|8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean|2768|16|isotopic, U/Pb-Pb/Pb ion probe|||||No|23575||||||WA Age: on (2007) 1:250K map sheet NULLAGINE, stated to be c.2766Ma. Overlain / underlain by Koongaling Volcanic Member (see 1999  WARRAGINE sheet and 2007 NULLAGINE sheet).  Formerly called Bamboo Creek Porphyry but recent studies have led to revision of lithology. In Fortescue Basin (2007 Mount Edgar 100K, version 2, refid 65727).|Rhyolite, rhyodacite and dacite in flows and subvolcanic intrusions; alkali feldspar and quartz phenocrysts; volcanic breccia, welded ignimbrite, witth accretionary lapilli; resedimented pyroclastic deposits.|acid volcanic rock|acid intrusive rock||N||17-JAN-23
Bamboo Springs Monzogranite|39605|Bamboo Springs Adamellite|1018|||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2908|5||intrusion|Mesoarchean|2927|10||||||No|24532||||||Part of the Shaw Granitic Complex. previously of Cutinduna Supersuite, but from 2016 part of Sisters Supersuite. See GSWA online Explanatory Notes System.|Biotite monzogranite; K-feldspar porphyritic; coarse grained; magmatic foliation|acid intrusive rock|||Y||17-JAN-23
Bandalup Ultramafics|36845|Bandalup|21189|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean|||||Archean||||||1500||No|23754|||||||Metamorphosed komatiitic basalt and pyroxenite; minor high-Mg basalt; tremolite and talc-rich schist.|ultramafic volcanic rock|ultramafic intrusive rock||N||17-JAN-23
Bandicoot Range beds|34708|Bandicoot Range Beds|1036|||Yes|Formation, beds|Informal|Variation of published name|Described|Carr Boyd Group|3663|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44155||||||In Refid 22754 is the comment "Stratigraphic position unknown; possibly overlain by Glenhill Formation."|Quartz sandstone, conglomerate, ferruginous sandstone, siltstone and shale|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bangemall Supergroup|34951|Bangemall Group|27106|||Yes|Supergroup|Formal|Variation of published name|Defined|||||Stenian|1070||inferred, intrusive relationship|minimum depositional age|Statherian|1629||inferred, underlying unit|maximum depositional age||10000||No|22905|24183|||||In the Capricorn Orogen [?? Capricorn Orogeny shown as 1830-1780 Ma on Robinson Range 1:250k 2002 map & Bangemall Supergroup is shown as in Edmund and Collier Basins]. Affected by the 1030-950 Ma Edmundian Orogeny.|Siltstone, dololutite, dolarenite, stromatolitic dolostone, sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Banjan Creek Formation|1061|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|37373||||||Used once, !981.|||||N||17-JAN-23
Bapinmarra Dolerite|69024|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|60976||||||||basic intrusive rock|||Y||17-JAN-23
Baramine Volcanic Member|23358|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Jeerinah Formation|8896|||Archean||||eruption|Archean||||||400||No|36551||Geological Survey of Western Australia|16-SEP-76|||Replaced in 2007 by Baramine Member, but GSWA has decided [2014] to return to the original full name.|Consists mainly of a mixture of bedded vitric, lithic and crystal tuffs minor accretionary lapilli tuff interlayered with bedded fine to coarse volcaniclastic rocks. Includes felsic, as well as basaltic, lavas and pyroclastic rocks.|acid volcanic rock|basic volcanic rock||N||17-JAN-23
Barbwire Sandstone|1088|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Oxfordian|||inferred|deposition|Middle Jurassic|||inferred|||34|WA|No|44404|48938|||||See also Barbwire Formation and Lexicon. Includes the "James Sandstone".|Prominently cross bedded and poorly sorted fine to coarse grained sandstone, intraformational conglomerate, shale, calcareous siltstone with poorly preserved plant remains.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bardsley Formation|33645|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cenozoic||||deposition|Mesoproterozoic|||||||WA|Yes|50188|50188|Hocking R.|22-JUL-99|||Nabberu 1:250 000 / Rhodes 1:100 000 sheet area. Sandstone. Defined and published in article 50188.|Poorly sorted sandstone, siltstone and granule conglomerate, local valley-fill deposit.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Bare Formation|23359|Bare formation|1092|||Yes|Formation, beds|Formal|Variation of published name|Defined|Cape Range Group|3521|||Late Miocene||||deposition|Middle Miocene||||||750|WA|No|40800|40800|R.M.Hocking, H.T.Moors|25-NOV-83||||Mixed sandstone and dolomitic sequence.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Barimunya Member|37722|||||Yes|Member, phase|Formal|Resvd name published|Described|Marillana Formation|37720|||Early Miocene||||deposition|Chattian||||||75||No|24573||Kneeshaw, M.|20-NOV-02|||Is the main channel iron deposit unit in the Marillana Formation.|Channel iron deposit (CID) ore. Conglomerate, minor claystone, breccia and sandstone; fossil wood fragments.|siliciclastic sedimentary rock|||N||17-JAN-23
Barker Monzogranite|23360|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1860|||intrusion|Paleoproterozoic|1860|||||||No|42710||Griffin T.J., Tyler I.M.|22-FEB-90|||See also misspelt Baker Monzogranite.|Medium to fine grained biotite monzogranite with minor small mafic xenoliths.|acid intrusive rock|||Y||17-JAN-23
Barlangi Granophyre|70179|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Proterozoic||||magmatic crystallisation|Neoarchean|2793|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|61560|||||||Fine- to medium-grained, pink granophyric monzogranite; undeformed; local xenoliths of partly melted coarse-grained granite.|acid intrusive rock|||Y||01-JUN-23
Barlee Range kimberlite, lamprophyre|82997|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||For use in Alkaline Rocks data compilation. Large number of kimberlite and lamprophyre dykes in the Bangemall Basin region of Western Australia. Jaques (2008) describes 11 bodies with a variety of unit names: Edmund, Ullawara, Myrong, Illirrie, ETL, and Barlee. Little information is available for these units. Jaques (2008) suggests a Mesozoic age.|Kimberlite and lamprophyre dykes.|exotic composition igneous rock|||Y||17-JAN-23
Barn Hill Formation|74625|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||7.5|WA|Yes|64449||V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Radiocarbon dating of shells and calcarenite within the Formation places it in the Holocene.  A whole-of-calcarenite sample for radiocarbon analysis returned an age of 2740 +/-120 yrs BP. Shells of Saccostrea cucullata from under a limestone lens returned an age of 900 +/- 100 yrs BP.|Red sand varying to orange quartz and light coloured to orange quartz-and-carbonate sand.|sediment|||N||17-JAN-23
Barnicarndy Formation|82171|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Katian|||inferred|maximum depositional age|Dapingian|||inferred, underlying unit|deposition||490|WA|Yes|73345||Normore, L.Haines P. (GSWA)|08-FEB-21|WA SNSC|02-FEB-22|Named for the Barnicarndy Hills. Occurs on map sheets Waukarlycarly 100K and Paterson Range 250K. Nearest towns are Telfer mine site, Marble Bar and Nullagine townships. The proposed Barnicarndy Formation is a local subsurface sandstone unit of inferred Ordovician age within the Barnicandy Graben of the southwestern Canning Basin intersected in stratigraphic drill hole Barnicarndy 1 (the proposed type locality). Published in Normore et al. (2021) APPEA Journal 61 and Dent et al. (2021) Interpretive Well Completion Report (GSWA Report 211).|fine- to medium-grained, oxidized quartz sandstones and minor siltstone.|medium-coarse grained siliciclastic rock|||N||28-JUL-23
Barrabiddy Member|1149|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Bulgadoo Shale|28411|||Permian||||deposition|Permian||||||||No|37294||||||Originally of Teichert, C., 1944. See published Lexicon (1963) for description. May be obsolete. Not used since 1980.|||||N||17-JAN-23
Barracouta Shoal Formation|74901|Barracouta Formation (WA)|1157|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Woodbine Group|20481|||Holocene||||deposition|Late Miocene||||||||No|69452||Nicholl, R., Kelman, A.  (GA)|11-SEP-08|||Replaces the invalid Barracouta Formation (WA)  -  the older Barracouta Formation of Gippsland Basin (Victoria), has priority.|||||N||17-JAN-23
Barrambie Igneous Complex|74849|Barrambie gabbro|74273|||Yes|Formation, beds|Formal|Resvd name published|Described|||Meeline Suite|74822|Neoarchean|||||Neoarchean|||||3000|5000||No|44149||Van Kranendonk, M. (GSWA)|29-OCT-08|||Geological province: Murchison Domain.  Age: ~2780 Ma. Hosts vanadium mineralisation (mine is proposed).|Layered gabbro and anorthosite, with magnetitite and pyroxenitic layers; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Barrambie gabbro|74273|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|71267||Stewart, A.J.|07-MAY-08|||See also Barrambie Igneous Complex.|Gabbro, pyroxenite, anorthosite, magnetite rock|basic intrusive rock|||Y||17-JAN-23
Barramundi Conglomerate|30675|Burramundi Conglomerate|32733|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Famennian||||deposition|Famennian||||||||No|43281||Hocking, R.|04-MAY-05|||Replaces Burramundi Conglomerate, a historical name, possibly misspelt? Age is Early to ?Middle Famennian.|Cobble to boulder conglomerate with minor intercalated coarse-grained sandstone and reefal carbonates; quartzite clasts dominant.|siliciclastic sedimentary rock|||N||17-JAN-23
Barrar Member|32532|||||Yes|Member, phase|Formal|Resvd name published|Described|Napier Formation|27212|||Famennian||||deposition|Famennian||||||||No|64502||Playford P.|15-JUN-98||||Interbedded calcarenite alternating with debris-flow megabreccias; local enormous allochthonous blocks of reef limestone.|carbonate sedimentary rock|||N||17-JAN-23
Barren Sandstone|1176|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||||||deposition|||||||||No|24549||||||Abrolhos Sub-basin.||siliciclastic sedimentary rock|||N||17-JAN-23
Barret Well Gneiss|1180|Barret Well gneiss|1181|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40308||||||Probably accidently capitalised.||acid intrusive rock|||N|I-type|17-JAN-23
Barrow Group|1209|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Hauterivian|||||Tithonian|||||1240|1750||No|34363||||||See also Barrow Formation. Recent references put this unit only in the Barrow and Exmouth Sub-basins of the Northern Carnarvon Basin. This group is a good quality gas reservoir.|Sandstone, siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bartle Member|29872|||||Yes|Member, phase|Formal|Resvd name published|Defined|Killara Formation|22095|||Statherian||||deposition|Statherian|||inferred, underlying unit||5|30|WA|No|62353|65419|Occhipinti S.|27-SEP-95|||Glengarry Basin. Previously included in Maraloou Formation.|Locally laminated chert with cherty siltstone, ironstone; tuffaceous rocks, chertifed sedimentary rocks and thin lava flows; microbial laminates, barite and anhydrite nodules.|non-carbonate chemical or biochemical sedimentary rock|metasomatic rock||N||17-JAN-23
Barton Dolerite|38798|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||intrusion|||||||190||No|23926|||||||Fine- to coarse-grained ophitic to sub-ophitic dolerite and quartz granophyre overlying clinopyroxene cumulate.|basic intrusive rock|||Y||17-JAN-23
Baseline Orthogneiss|75923|||||Yes|Formation, beds|Formal|Other new published name|Described|||Minigwal Suite|75920|Archean|||||Archean||||||||No|66113|||||||Migmatitic orthogneiss.|metamorphosed igneous rock|||Y||17-JAN-23
Bassendean Sand|25776|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Upper Pleistocene||||deposition|Chibanian||||||80|WA|No|30939|32650|||||In Swan Coastal Plain area. Of Seddon (1972), Playford et al (1976).|Basal conglomerate overlain by dune quartz sand with heavy mineral concentrations.|regolith|||N||17-JAN-23
Bassett Formation|1240|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Woodbine Group|20481|||Paleocene||||deposition|Maastrichtian||||||||No|42053||||||Offshore. Vulcan Sub-basin &  Browse Basin.|||||N||17-JAN-23
Bassetts Volcanic Member|79851|||||Yes|Member, phase|Formal|Resvd name published|Described|Meekatharra Formation|74805|||Neoarchean|||inferred, lithostratigraphic correlation||Neoarchean|||inferred, lithostratigraphic correlation|||||No|71271||Lowrey, J. (GSWA)|01-MAY-17|||Map sheet 2544 Meekatharra, SG50-11. Aphyric basalt with acicular pyroxene rich groundmass. Chemically and texturally distinct volcanic unit within the Meekatharra Formation.To be published = Volcanic member will be described in detail in a journal publication discussing its chemistry, and petrography. It will also be incorporated into GSWA geological series maps for the Gabanintha and Meekatharra 1:100,000 mapsheets.|Pyroxene spinifex-textured basalt with bonininitic affinity; metamorphosed and locally schistose.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Bastion Group|1242|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Mesoproterozoic|||||Paleoproterozoic|1762|15|inferred, underlying unit|||1350||No|44366||||||Defn on Tech File SD/52-14. Age updated by I.Sweet.|Sandstone, siltstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Batchelor Monzogranite|74827|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Big Bell Suite|74825|Archean||||intrusion|Archean||||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Age: ?2780Ma. Part of the Austin Downs Supersuite.|Metamonzogranite; commonly foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Bathurst Island Group|1249|Bathurst Island Formation|1246|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Maastrichtian|||biozone|deposition|Valanginian|||biozone|||||No|41459||||||Age limits inferred from ages of component Darwin Formation (base) and Wangarlu Formation (top). This name superseded Bathurst Island Formation, but the Formation may have been reinstated in ~2005 by NTGS?|Sublabile sandstone, siltstone, mudstone, conglomerate, conglomeratic sandstone, argillaceous siltstone; locally calcareous or unconsolidated; strongly weathered in outcrop with the development of a trizonal laterite profile.|siliciclastic sedimentary rock|||N||17-JAN-23
Bayleys Monzogranite|78610|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2692|||intrusion|Neoarchean|2726|||||||No|70153||Hall, C. (GSWA)|11-DEC-13|||Kalgoorlie map sheet area. Fine-grained grey coloured microgranite sills and dykes that have intruded mafic rocks of the Coolgardie Subgroup; quartz-feldspar phenocrysts; locally  metamorphosed. To be published: East Yilgarn 2013-14 update. Digital package Geological Survey of Western Australia.|Fine-grained microgranite; quartz and feldspar phenocrysts; metamorphosed.|acid intrusive rock|||Y||20-AUG-23
Beabea Monzogranite|40750|||||Yes|Formation, beds|Formal|Other new published name|Described|||Sisters Supersuite|68741|Mesoarchean|2941|5||intrusion|Mesoarchean|2941|5||||||No|50146|||||||Equigranular to feldspar porphyritic biotite monzogranite; weakly to moderately foliated.|acid intrusive rock|||Y||17-JAN-23
Beaconsfield Conglomerate|1314|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|36872|36293||||||||||N||17-JAN-23
Beagle Bay Member|23368|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40837||P.Lehmann|20-JAN-84||||||||N||17-JAN-23
Bearra Gneiss|31774|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean|2690||||Archean|3280|||||||No|43835||||||Contains zircon xenocrysts with ages of circa 4000 Ma, 3982 Ma, and 3945 Ma.|Dioritic gneiss (circa 3280 Ma) and leucocratic gneiss (circa 2720 - igneous mafic intrusive).|foliated metamorphic rock|||N||17-JAN-23
Bearuroo Dolomite Member|23370|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|40088|40089|A.T.Brakel, P.C.Muhling|24-JUN-77||||||||N||17-JAN-23
Beasley River Quartzite|25778|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Shingle Creek Group|79382|||Orosirian|2031|6|inferred, overlying unit|deposition|Rhyacian|2208|10|inferred, underlying unit||220|500|WA|No|44729|35976|||||Minimum age from tuff in overlying Wooly Dolomite. Conformable relationship with overlying Cheela Springs Basalt and Wooly Dolomite suggests minimum age is likely close to depositional age. Maximum age from dolerite sills intruding the underlying Turee Creek Group. Youngest detrital zircon in this unit (BRQ) is 2420 +/-18 Ma (GSWA 2005), but younger potential source rocks (dolerite dykes) contain no zircon. The parent unit, Shingle Creek Group, is proposed as the formal name to replace the informal lower Wyloo Group. As such it includes the Beasley River Quartzite, Cheela Springs Basalt, and Wooly Dolomite. Wyloo Group is now reserved for what was informally referred to as the upper Wyloo Group.|Fine- to coarse-grained, silicified quartz sandstone; ferruginous conglomerate, sandstone, and pebbly sandstone; siltstone and dolostone; intruded by Balgara Dolerite sills.|siliciclastic sedimentary rock|||N||23-JUN-23
Beaton Creek Member|74911|Beatons Creek Conglomerate|1330|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Hardey Formation|8075|||Archean||||deposition|Archean||||||||No|64653||||||Originally referred to as the Beaton's Creek Conglomerate by Noldart and Wyatt (1962). Contains significant placer gold mineralisation.|Comprises very coarse-grained lenticular conglomerate with rounded to subangular pebbles and cobbles of granitic and wacke lithic fragments.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Beatty Park Member|30234|||||Yes|Member, phase|Formal|Resvd name published|Defined|Wilthorpe Formation|30236|||Orosirian|1800||inferred|deposition|Orosirian|1996|35|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|65408|65419|Occhipinti S.|27-SEP-95|||Glengarry Basin. Maximum age of 1996 Ma is from detrital zircons.|Chloritic siltstone; sandstone; and breccia; numerous mafic volcanic fragments.|siliciclastic sedimentary rock|||N||27-APR-23
Becher Sand|28358|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Holocene||||deposition|Holocene||||||20|WA|No|40400|40400||||||Fine- to medium-grained quartz and skeletal sand, mostly structureless and bioturbated; lenses of silty calcareous clay, rich in shell fragments.|regolith|||N||17-JAN-23
Beckett Member|1348|||||Yes|Member, phase|Formal|Other new published name|Described|Holmwood Shale|8432|||Sakmarian||||deposition|Asselian||||||||No|48848||||||See also Lexicon.|Thin calcareous mudstone.|fine grained siliciclastic rock|||N||17-JAN-23
Bedford Sandstone|26376|||||Yes|Formation, beds|Formal|Other new published name|Described|Speewah Group|17150|||Orosirian|1820|||deposition|Orosirian|1835|||||500||No|42710||||||Age: c.1835Ma.|Siliceous argillaceous and slightly feldspathic quartz sandstone with sparse quartz, chert and claystone pebbles and ubiquitous large scale cross beds; basal red-purple-brown medium grained quartzite and flaggy micaceous fine sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bedout Formation|31125|Bedout Beds|1361|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Jurassic||||deposition|Rhaetian||||||||No|43705||||||See also reservation for older Bedout Volcanics for use in offshore Canning Basin,  by R. Hocking (1988).|||||N||17-JAN-23
Bedout Volcanics|21212|||||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|||||Wuchiapingian||||eruption|Capitanian||||||||No|13255||Hocking R.|26-APR-88|||Reserved for use in offshore Canning Basin. See also younger Bedout Formation. [age and relationship information provided by J.Totterdell, MAR-2015]. See also younger Bedout Formation.|||||N||17-JAN-23
Bee Gorge Member|29989|||||Yes|Member, phase|Formal|Other new published name|Fully described|Wittenoom Formation|20327|||Neoarchean|2506||inferred, lithostratigraphic correlation|deposition|Neoarchean|2570||inferred, lithostratigraphic correlation|||230||No|43064||||||Age: 2346 +/- 38 Ma (Simonson and Hassler, 1997);  2603 +/- 7 Ma on zircon (Krapez, 1997). Max & min ages from Trendall et al (2004), RefID 60706.|Argillite, dolomite, limestone, banded iron-formation, chert, volcaniclastics. Neoarchaean impact spherules. Contains a spherule marker bed.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Bee Hill Sandstone|24706|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44298|||||||Sandstone, siltstone, sedimentary breccia, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Beedagong Claystone|1384|Beedagong Formation|21214|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Santonian||||deposition|Turonian||||||83|WA|No|42123|42995|||||See also definition data for Beedagong Formation.|Calcareous claystone and/or mudstone which usually grades upward into calcilutite; green to dark grey; massive.|fine grained siliciclastic rock|||N||17-JAN-23
Beefwood Yard Granite|31787|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43853||||||For a granite in the Lissadell 1:250 000 sheet area (east Kimberley region). Age updated by I.Sweet.|Medium- and coarse-grained porphyritic biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Beekeeper Formation|30579|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Changhsingian||||deposition|Wordian||||||134||No|43216||||||Arrowsmith-Beagle Islands sheet area. (Hall and Kneale, 1992). Was intended to be replaced by Beekeeper Member of the Wagina Formation in 1995, but Beekeeper Formation remains in current use.|Mixed carbonate-siliciclastic marine unit.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Beekeeper Sequence|79240|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Mentioned||||||||||||||||||No|70097||||||See also Beekeeper Formation.|||||N||17-JAN-23
Beenong Dolerite|80578|Beenong Dyke Suite|78593|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|||||Neoproterozoic|541||inferred||Mesoproterozoic|1218||inferred|||||No|||Spaggiari, C.V., Wingate, M.T.D. (GSWA)|03-JUL-18|||Cuts the southern part of the Southern Cross Domain and Southwest Terrane of the South Yilgarn Craton. NW trending; moderately magnetic, relatively short in length. Mafic. Age unknown, but probably younger than c.1210 Ma, because they crosscut younger structures in the Kepa Kurl Booya Province near Bremer Bay. See GSWA ENS: Wingate, MTD and Spaggiari, CV (partial report), Beenong Dolerite (P_-_be-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Beenong Dyke Suite|78593|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Mesoproterozoic||||intrusion|Mesoproterozoic|||inferred|||||No|65487||||||Cuts the southern part of the Southern Cross Domain and Southwest Terrane of the South Yilgarn Craton. NW trending; moderately magnetic, relatively short in length. Mafic. Age unknown, but probably younger than c.1210 Ma, because they crosscut younger structures in the Kepa Kurl Booya Province near Bremer Bay.|Mafic. Moderately magnetic.|basic intrusive rock|||Y||17-JAN-23
Behn Conglomerate|28360|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Famennian||||deposition|Frasnian||||||||No|39796||||||See also Lexicon.|Boulder conglomerate with mainly quartzite and volcanic clasts with lesser schist, granitoid, limestone, and vein quartz; the matrix varies from fine to very coarse, with fossil debris.|siliciclastic sedimentary rock|||N||17-JAN-23
Bejah Claystone|1401|Bejah Beds|1400|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Aptian||||deposition|Valanginian||||||20|WA|No|31914|45153|||||Age is pre-Cainozoic. Often shown on Canning Basin diagrams too. May be considered to belong to both Gunbarrel and Caning Basins?|Radiolarian claystone, minor siltstone and fine sandstone|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||21-SEP-23
Belcher Subgroup|1411|||||Yes|Subgroup|Informal|Other new published name|Mentioned||||||||||||||||||No|41997|||||||||||N||17-JAN-23
Bell Rock gabbro|28074|||||Yes|Formation, beds|Informal|Transferred from STRATLEX Mar 1995|Mentioned|Giles Complex|7206|||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|61339|||||||Granophyric leucogranite.|acid intrusive rock|||Y||17-JAN-23
Bellanger Sand|73496|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Bellary Formation|23372|||||Yes|Formation, beds|Formal|Resvd name published|Described|Fortescue Group|6834|||Neoarchean|2775||inferred, overlying unit|deposition|Neoarchean|2780||inferred|||556||No|42471||Thorne A.M.|01-MAR-89|||Rocks previously assigned to Hardey Formation. Age: <2830 and >2772 Ma [Coongan Explan. Notes, 2010]. Age range from Trendall et al (2004), RefID 60706.|Pelite, feldspathic sandstone, pebbly sandstone, conglomerate, shale, siltstone, subordinate metabasaltic lava and pillow lava, and metatuff.|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||23-JUN-23
Bellevue Limestone Member|29480|Bellevue Member|73563|||Yes|Member, phase|Formal|Resvd name published|Described|Kooallup Limestone|73564|||Upper Pleistocene||||deposition|Upper Pleistocene||||||||No|63454||Semeniuk, V.|02-MAR-95||||Fossiliferous marine limestones+beach calcarenite; includes white to cream, shelly/bioturb.calcarenite, laminated x-laminated shelly calcarenite/coquina, laminated to x-laminated beach calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Beloceras Bed, Lower|77578|||||Yes|Bed|Informal|Variation of published name|Mentioned|Virgin Hills Formation|19137|||Frasnian|||||Frasnian||||||||No|66127|||||||||||N||17-JAN-23
Beloceras Bed, Upper|72567|||||Yes|Bed|Informal|Other new published name|Mentioned|Virgin Hills Formation|19137|||Frasnian|||||Frasnian||||||||No|62735||||||Informally named horizon within the Virgin Hills Formation. A transgressive marker bed with abundant trilobites. In the McWhae Ridge area.|||||N||17-JAN-23
Belvedere Group|1447|Belvedere group|34415|||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|42260|||||||||||N||17-JAN-23
Benalla Formation|23374|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sahul Group|16515|||Norian||||deposition|Carnian|||||||WA|No|41532|42442|A.J.Mory|26-AUG-87|||Unit occurs in both Northern Territory and Western Australia.|Carbonate; minor shale and sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bent Tree Basalt|23377|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Neoarchean||||eruption|Neoarchean||||||2000||No|42156||Witt W.K.|02-OCT-87|||Previously considered part of the Grants Patch Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group. Bent Tree Basalt lies within Davyhurst, Bardoc and part way into the Kalgoorlie 1:100K map sheets areas.|Tholeiitic basalt; pillowed to massive  lavas, including mafic sills; metamorphosed.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Bentley Supergroup|1491|Bentley Super-Group|24713|||Yes|Supergroup|Formal|Other new published name|Fully described|||||Stenian|1078|5|inferred, intrusive relationship|eruption|Stenian|1176|||||12000||No|30385||||||Said by GSWA to be in Bentley Basin (2011, 2016). Age from constituent units. Max age from Kunmarnara Group. Minimum age from ?subvolcanic dacite sill intruding the Smoke Hill Volcanics (Tollu Group).|Sandstone, siltstone, chert; felsic volcanic and volcaniclastic rocks; minor mafic volcanic rocks; minor calcareous sediments; weakly to moderately deformed.|acid volcanic rock|medium-coarse grained siliciclastic rock||N||06-OCT-23
Bentley Supergroup - metasedimentary rocks 81091|81091|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Bentley Supergroup|1491|||Mesoproterozoic|||inferred||Mesoproterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Karen Connors for the basement geology of the Exploring for the Future area. Undivided low grade metasedimentary rocks of Bentley Supergroup; non-magnetic (to weakly magnetic) unit; gravity response is variable due to underlying units; unit is intensely folded and faulted within Musgrave Province in south, but to the north beneath western edge of Amadeus Basin it appears to form a broad, non-magnetic "sheet" of variable thickness sandwiched between overlying magnetic volcanics and underlying magnetic basement (See Frogtech Geoscience, 2017).|metasedimentary rocks of Tanami Terrane; weakly to non-magnetic, lack distinct gravity response.  Likely to be dominated by Tanami Group, may  include Lander Rock Formation, Halls Creek Group, and possibly Birrindudu Group.|metasedimentary rock|||N||09-MAY-23
Bertibubba Supersuite|38576|Bertibubba suite""|38577|||Yes|Supergroup|Formal|Variation of published name|Described|||||Orosirian|1945||||Orosirian|1965|||||||No|23781||||||Formerly "Wooramel suite" and "Bertibubba suite".|Equigranular and porphyritic, biotite metamonzogranite; lesser dykes of leucocratic, biotite tonalite, and granodiorite.|metamorphosed acid igneous rock||collisional zone|Y||17-JAN-23
Beryl pegmatite group|39730|||||Yes|Group, Suite|Informal|Variation of published name|Described|||||Archean||||intrusion|Archean||||||||No|24193|||||||||||Y||17-JAN-23
Bessie Creek Sandstone|24715|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Maiwok Subgroup|25195|||Ectasian|1361|21||deposition|Calymmian|1422|20|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age|10|417|NT|No|46679|70968|||||Included in Maiwok Subgroup of Roper Group in Urapunga-Roper River 2nd ed. explan. notes. Occurs in the Beetaloo Sub-basin. Note a Re-Os date from the lower part of the overlying Velkerri Formation is 1417+/-29 Ma (Munson, 2016). The 1386 Ma age is from a single grain (Yang et al, 2018).|Quartz sandstone: fine to medium and locally coarse grained, trough cross-stratification, ripple marks.|medium-coarse grained siliciclastic rock|||N||08-SEP-23
Beta Island Member|29421|Beta Island Formation|21240|||Yes|Member, phase|Formal|Resvd name published|Described|Roysalt Formation|29420|||Quaternary||||deposition|Quaternary||||||11||No|42959||||||Reserved as Beta Island Formation.|Gypsum-bearing lunette dunes.|regolith|||N||17-JAN-23
Betty Formation|29218|||||Yes|Formation, beds|Informal|Resvd name published|Defined|Grant Group|7696|||Sakmarian|||biozone|deposition|Asselian|||||82|417.5|WA|Yes|42613|42613|T.Yeates, R.Towner, R.Crowe|24-MAY-76|WA SNSC|31-AUG-77|Definition by Towner R.R., and Crowe R.W.A. (1976).  Subsurface only. Type section in Lake Betty 1. Although 2008 paper suggested this name was abandoned/superseded, Mory (2010) says "appears to be equivalent to Hoya and Reeves Formations." In Fitzroy Trough area. Oil recovered from fluvial sand of this unit. Only differentiated in the Tabletop Shelf area, Gregory Sub-basin. Revised correlations of this area  point to a much-reduced interval (1557 ? 1657.6 m) or none, depending on how much reliance is placed on the identification of the S. ybertii Zone at 1578.9. Proposed  to be reduced to informal status by Backhouse and Mory (2020) GSWA Report 207.|Consists mainly of moderately sorted, medium to coarse-grained sandstone with minor mudstone and conglomerate, rare glauconite and a high proportion of lithic fragments; diamictite.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Beverley Springs Member|27337|||||Yes|Member, phase|Formal|Other new published name|Described|Walsh Tillite|19334|||Ediacaran||||deposition|Cryogenian||||||||No|30896|||||||Poorly sorted, pebbly quartz sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Beverly Hills Dolerite|81586|||||Yes|Member, phase|Informal|Other new published name|Mentioned|Cave Rocks Dolerite|81582||||||||||||||||No|72057||||||||basic intrusive rock|||Y||17-JAN-23
Biberkine Dolerite|82228|Biberkine dykes|83187|||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Ectasian|||inferred||Ectasian|1390|3|isotopic, U/Pb-Pb/Pb, TIMS|||||No|||Wingate, M.T.D. (GSWA)|26-MAR-21|||A NNW-trending mafic dyke swarm, the Biberkine dyke swarm, in the southwestern Yilgarn Craton. Aeromagnetic data suggest that the dykes are part of a linear swarm several hundred kilometres long, truncated by the Mesoproterozoic Albany-Fraser Orogen to the south.1390+/- 3 Ma by IDTIMS U-Pb on baddeleyite (Stark et al., 2018).|Mafic dykes.|basic intrusive rock|||Y||17-JAN-23
Bibra Limestone|1572|Bibra Formation|1571|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pleistocene||||deposition|Pleistocene||||||||No|37302||||||.|Shelly calcarenite to calcirudite; shallow marine and beach-ridge deposits; minor calcretization.|carbonate sedimentary rock|||N||17-JAN-23
Bickleys Porphyry|1575|||||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|44366|||||||Grey fine grained quartz feldspar porphyry and porphyritic micromonzogranite, in places foliated; a phase contains pink feldspar phenocrysts in places.|acid intrusive rock|||Y||17-JAN-23
Biddenew Formation|74796|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount James Subgroup|75712|||Statherian|1677|5||deposition|Statherian|1758|18||||||No|68521||Sheppard, S. (GSWA)|21-OCT-08|||For use on PINK HILLS map sheet; nearest town is Gascoyne Junction. To be published: EUDAMULLAH, MOUNT PHILLIPS, MOUNT AUGUSTUS, YINNETHARRA and PINK HILLS 1:100K map sheets. Named for Biddenew Creek in the area.|Feldspathic metasandstone, with coarse-grained granule and pebbly feldspathic metasandstone, phyllite, quartz-muscovite schist, and cobble and boulder metaconglomerate.|metasedimentary siliciclastic rock|||N||17-JAN-23
Big Bell Suite|74825|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Austin Downs Supersuite|74824|Neoarchean|2686||||Neoarchean|2732|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Metagranite; commonly foliated; includes granodiorite to monzogranite, granitic gneiss with rafts of migmatitic tonalite, equigranular monzogranite to syenogranite; common magmatic foliation and schlieren layering.|metamorphosed acid igneous rock|metamorphosed igneous rock||Y||03-APR-23
Big Blow Chert|1588|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||deposition|Archean||||||||No|42221|||||||||||N||17-JAN-23
Big Dick Basalt|23383|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Archean||||eruption|Archean||||||500||No|42221||W.K.Witt|02-OCT-87|||Previously considered part of the Linger and Die Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group. Big Dick Basalt lies within the Bardoc 1:100K  map sheet area.|Komatiitic basalt. Variolitic basalt; pillowed to massive; metamorphosed.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Big Red paragneiss|80070|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Ectasian|1326|6|inferred, intrusive relationship||Statherian|1685|11||||||No|69595|||||||Migmatitic paragneiss|high grade metamorphic rock|||N||17-JAN-23
Big Spring Formation|74174|Big Spring Member|1597|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Frasnian||||deposition|Frasnian||||||||No|64580||Hocking, R. (GSWA)|27-FEB-08|||Current usage revised formally in GSWA Bulletin 145 (text published 2009), although this name already exists on the maps for this publication (Plate 2, published 1998). Formerly designated as the informal Big Spring Member of Pillara Fm. (Read 1973).|Cyclic units (to 20 m thick) of coarse-grained arkosic sandstone, well-bedded to massive; locally calcareous, with conglomerate at the base; siltstone, shale and carbonates towards the top|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Big Tank Monzogranite|79566|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Neoarchean|2726||inferred|||||No|71270||Sapkota, J. (GSWA).|17-AUG-16|||Map Sheet = Menzies Nearest Town = Menzies.The unit occurs in the western part of the Eastern Goldfields Superterrane of the Yilgarn Craton. Wheretobepublished = GSWA explanatory notes and interpreted bedrock geology map in 2017.|Mainly consists of biotite monzogranite with numerous pegmatite dykes.|acid intrusive rock|||Y||17-JAN-23
Big W Rhyolite|1604|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|32805||||||||acid volcanic rock|||N||17-JAN-23
Biggada Formation|23384|Biggada formation|1615|||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Oxfordian||||deposition|Oxfordian|||||||WA|No|40617|42615|R.M.Hocking, H.T.Moors|23-MAY-83|||Age Late Jurassic (middle Oxfordian). Probably only in Barrow Sub-basin of Nthn Carnarvon basin. See references. Maybe interleaved with and underlying Dingo Claystone|Sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Bight Basin Group|79825|Bight Group|1620|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Cretaceous|||||Cretaceous||||||||No|69632||||||variation on old Bight Group?. Supposed constituents are Cretaceous units Loongana and Madura Formations, which underlie the Cenozoic Eucla Basin units. Used in GA Solid Geology. Assume extends into SA.|Carbonaceous sandstone, siltstone, claystone and shale; commonly pyritic. Cross-bedded feldspathic sandstone, locally conglomeratic, carbonaceous sandstone; glauconitic sandstone, siltstone, claystone and shale; commonly pyritic.||||N||26-SEP-23
Bililly Formation|1625|Billilly Formation|1640|||Yes|Formation, beds|Formal|Other new published name|Fully described|Badgeradda Group|863|||Neoproterozoic||||deposition|Mesoproterozoic||||||200||No|48823||||||Place name is Billilly Well.  However correct usage for this formation name remains as Bililly as defined originally by Perry and Dickens (1960) BMR Report 46 (per email from R. Hocking/GSWA Mar.06). Max, thickness: 1200ft.|Medium- to coarse-grained arkosic sandstone, locally pebbly, overlain by micaceous siltstone to silty sandstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||03-APR-23
Billabalong Basalt|23385|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||eruption|Archean||||||||No|42533||Watkins K.P., A.H.Hickman, R.Davy|21-OCT-86||||Basal high-Mg basalt, then massive tholeiitic basalt with abundant gabbro and dolerite sills; pyroclastic tholeiites in top 1 km, interlayered (in upper 500 m) with felsic volcanics and scarce ferruginous chert, intensely deformed and intruded.|basic volcanic rock|||N||17-JAN-23
Billabong Complex|42069|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean|2514|3|isotopic, U/Pb-Pb/Pb ion probe||Neoarchean|2532|3||||||No|61056||||||Possible source of Archean detrital zircons in Ferdies Member of the Dead Bullock Formation, Tanami region. See also Billabong complex.|Strongly foliated, upper amphibolite facies biotite gneiss, coarse-grained augen gneiss.|high grade metamorphic rock|metamorphosed acid igneous rock||Y||17-JAN-23
Billeranga Subgroup|25785|Billeranga Group|1635|||Yes|Subgroup|Formal|Unknown or process pending|Defined|Moora Group|12271|||Mesoproterozoic||||deposition|Mesoproterozoic|1390|140|isotopic, Rb/Sr||100|400|WA|No|40349|40347|||||See also Billeranga Sub-group, and the misspelt Billeringa Subgroup.|Sandstone, siltstone, claystone, basalt and tuff, arkose, conglomerate|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Billidee Formation|1639|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian|||||60|210|WA|No|44344|45016|||||Defn on Tech File G/50-1. Contains potential hydrocarbon sealing units.|Grey thinly bedded feldspathic and quartz sandstone and siltstone with interbedded commonly carbonaceous shale; local friable calcisiltite and hard fossiliferous calcarenite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Billinooka Inlier granitic rock 83738|83738|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|||inferred||Paleoarchean|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Billinooka Inlier granitic unit, A-g-PBK. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granite to granodiorite; metamorphosed and variably foliated.|igneous intrusive rock|||Y||30-JAN-23
Bindoo Sandstone|79288|Bindoo Hill Beds|32754|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Devonian||||deposition|Silurian||||||||No|72034||Hocking, R. (GSWA)|17-NOV-15|||For the sandy unit prviously included in the Tumblagooda Sandstone around Bindoo Hill just south of the Greenough River in the Irwin Terrace of the northern Perth Basin. It's an upgrade of the old Alan Condon name Bindoo Hill beds (from BMR Bull 77 part 1). I think it's a younger unit, probably Devonian, maybe Silurian, but definitely not part of the Tumblagooda (R.Hocking 17-Nov-2015).|Fine- to medium-grained silty sandstone, locally coarse-grained and pebbly, siltstone and claystone.|siliciclastic sedimentary rock|||N||22-FEB-23
Bingy Bingy Basalt Member|1693|Bingy Bingy Member|1694|||Yes|Member, phase|Formal|Other new published name|Defined|Antrim Plateau Volcanics|488|||Early Cambrian||||eruption|Early Cambrian||||||40|NT|No|28255|48943||||||Medium-grained porphyritic basalt with plagioclase phenocrysts; agglomerate.  Highly weathered and laterised.|basic volcanic rock|||N||17-JAN-23
Binneringie Dolerite Member|80600|Binneringie Dyke|1704|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D., Romano, S.S. (GSWA)|03-JUL-18|||Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS: Wingate, MTD and Romano, SS (partial report), Binneringie Dolerite Member (P_-_wx-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Olivine gabbro and dolerite. Includes cumulate textures and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Binningup Calcrete|23389|Binningup calcrete|24724|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Holocene|||||Holocene|||||||WA|No|40367|40367|Semeniuk, V.|23-JAN-80||||||||N||17-JAN-23
Binthalya Formation|1705|Binthalya Sub-Group|1706|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kennedy Group|9434|||Wordian|||inferred|deposition|Kungurian|273|18|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||544|WA|No|44344|45016|||||SG50-1. SHRIMP dates are on alunite altered tuff layers, and provide maximum depositional ages.|Quartz wacke interbedded with grey to black siltstone and shale, commonly bioturbated; offshore marine to inner shelf.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Biranup Zone metagranitic rocks 83739|83739|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Neoarchean|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Biranup Zone metagranitic unit' AP_-mg-KKBB. Kepa Kurl Booya Province, Biranup Zone. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metagranitic rocks dominant;  parts metasyenogranite and metagranodiorite, or migmatitic; some metasedimentary gneisses , locally with mafic amphibolite lenses; may include remnants of Archean rocks|metamorphosed intermediate igneous rock|||Y||30-JAN-23
Birdrong Sandstone|1720|Birdrong Formation|1716|||Yes|Formation, beds|Formal|Variation of published name|Defined|Winning Group|20259|||Aptian|121|||deposition|Valanginian|135|||||79|WA|No|44344|42598|||||Formerly referred to as "Butte Sandstone" (Clarke and Teichert (1948).|Basal transgressive sandstone deposited in coastal to nearshore environment, overlain by marine shales, radiolarite, siltstone, calcilutite and calcarenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Birdseye Limestone|1721|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45143||||||||carbonate sedimentary rock|||N||17-JAN-23
Biridu Dolerite|80582|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Paleoproterozoic|1810||inferred, intrusive relationship||Paleoproterozoic|1879||inferred, intrusive relationship|||||No|||Wingate, M., Phillips, C. (GSWA)|03-JUL-18|||Lennard River 250k. Previously informally known as Leopold Downs Dyke Suite. Metadolerite dykes; mainly northwest-trending dykes; commonly metamorphosed to amphibolite facies. Intrudes the Marboo Fm and granitic units of the Paperbark Supersuite; it does not include [intrude?] units of the Kimberley Basin, therefore an age of 1879 to 1810 is inferred. See also GSWA ENS: Wingate, MTD and Phillips, C (partial report), Biridu Dolerite (P_-_bi-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Metadolerite dykes; mainly northwest-trending dykes; commonly metamorphosed to amphibolite facies.|metamorphosed basic igneous rock|||Y||17-JAN-23
Birksgate Complex|29906|Birksgate Granitic Complex|1734|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Mesoproterozoic|1300||||Statherian|1605|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|43052||||||Fregon Domain, Musgrave Province. Connection to Birksgate Granitic Complex assumed. Volcanosedimentary protoliths of ages: ~1550 and 1300 Ma.  Many rocks in the Birksgate Complex are also in the Pitjantjatjara Supersuite. In W.A. this unit has also been referred to as Birksgate Metamorphics - to be renamed in updated version of the BELL ROCK map sheet.|Granulite to amphibolite facies quartzofeldspathic gneiss and paragneiss, locally migmatitic; granitic augen gneiss, locally mylonitic; felsic to ultramafic orthogneiss; leucogranite layers; garnet-sillimanite gneiss; staurolite gneiss; iron formation|high grade metamorphic rock|||Y||14-AUG-23
Birksgate Complex - quartzite|74354|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Birksgate Complex|29906|||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Quartzite with local garnet, sillimanite, or staurolite|metasedimentary siliciclastic rock|||N||17-JAN-23
Birrindudu Group|1735|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Calymmian|1560|20|isotopic, Rb/Sr|deposition|Statherian|1735|||||6000|NT|No|32659|45140|||||Based on lithological and structural similarities the Supplejack Downs Sandstone (formerly of Ware Group) is now included in this group (RefID: 63261). Latest age control (summarised, 2008, by http://www.nt.gov.au/d/Minerals_Energy/Geoscience/index.cfm?header=Victoria%20and%20Birrindudu%20Basins) suggest Birrindudu Basin ranges from 1700-1640 Ma.  Equivalent of Tolmer Group. Hosts U and REE's in the Killi Killi Hills.|Sublithic arenite, quartz arenite,siltstone, shale, conglomerate,stromatolitic chert, limestone,glauconitic sandstone. Marine to fluvial sediments.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Biscay Formation|1737|||||Yes|Formation, beds|Formal|Other new published name|Defined|Halls Creek Group|27793|||Orosirian|1870|4||magmatic crystallisation|Orosirian|1880|3||||3000|WA|No|44317|45140|||||Age: 1880 +/- 3 Ma, c. 1880Ma.  A rhyolite sill within this unit (Page and Hancock 1988) is now mapped as part of Maude Headley Member. Within the Lamboo Complex. Age: c.1880Ma. Based on significant differences in sedimentology and U-Pb zircon geochronology, the lower Biscay Fm has been redefined as Brim Rockhole Fm, and upper Biscay Fm is redefined as Biscay Fm.|Low to medium grade metamorphosed basaltic volcanics, volcaniclastics, dolerites, pelites and carbonates; carbonate and chert lenses, and local sandstone interbeds.|basic volcanic rock|sedimentary rock||N||17-JAN-23
Bishop Creek Monzogranite|39507|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Cleland Supersuite|68665|Paleoarchean|3241|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3246|3|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03|||Confirmed reservation by A. Hickman (GSWA) 28-MAY-2007. For map sheet 2955; nearest town Marble Bar. Intrusion of Cleland Supersuite in Mount Edgar Granitic Complex. To be pub: GSWA Record 2006/15; defined in Mt Edgar Explan Notes (June 2007).|Biotite monzogranite to granodiorite and syenogranite; fine- to coarse-grained; locally seriate and porphyritic; rare pegmatite dykes; weakly metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Bit Basher Shale|83457|||||Yes|Member, phase|Informal|Other new published name|Described|High Cliff Sandstone|8332|||Cisuralian|||inferred||Cisuralian|||inferred|||||No|73513||||||Is intersected in the Waitsia field, see Tupper et al (2016) APPEA paper. Probably an upper member of the High Cliff Sandstone.Overlain by Kingia Sandstone.|||||N||15-MAR-23
Bitter Springs Group|79261|Bitter Springs Formation|1758|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Tonian|767|130|isotopic, U/Pb|deposition|Tonian|896|24|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1000|NT|Yes|70762||Normington, V., Donnellan, N. (NTGS)|28-SEP-15|Whelan, J., Normington, V.|09-NOV-15|Upgrade of Bitter Springs Formation to Group rank. CONSTITUENT UNITS (from base to top): Gillen Formation, Loves Creek Formation, Johnnys Creek Formation. Age from correlation of basalt in Johnnys Creek Formation with Amata Dolerite (824+/-4 Ma). New work gives a  maximum depositional age of 896 +/- 24 Ma for detrital zircon U-Pb SHRIMP sampled from informal member 3 of the Gillen Formation (Kositcin et al 2014), which is considerably older than the inferred deposition of 820 Ma for the Bitter Springs Group. Amadeus Basin, Centralian Superbasin.|Dolomite, stromatolitic dolomite, siltstone, and sandstone; evaporitic in subsurface. Limestone, siltstone, mudstone.|carbonate sedimentary rock|||N||17-JAN-23
Black Dragon Gneiss|79290|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleoproterozoic|1790||||Paleoproterozoic|1815|||||||No|69595||Spaggiari, C. (GSWA)|18-NOV-15|||Plumridge  SH51-08 and Neale  SH51-04 sheet areas. Metagranodiorite and metadiorite; may include remnants of Archean rocks and Tropicana Gneiss. Tectonic Unit hierarchy: Tropicana Zone, Kepa Kurl Booya Province, Albany-Fraser Orogen. Publications: Doyle, M.G., Fletcher, I.R., Foster, J., Large, R.R., Mathur, R., McNaughton, N.J., Meffre, S., Muhling, J.R., Phillips, D. and Rasmussen, B., 2015.Geochronological constraints on the Tropicana Gold Deposit and Albany-Fraser Orogen, Western Australia. Economic Geology, 110(2): 355-386. Occhipinti, SA, Doyle, MG, Spaggiari, CV, Korsch, RJ, Cant, G, Martin, K, Kirkland, CL, Savage, J, Less, T, Bergin, L and Fox, L 2014, Preliminary interpretation of the deep seismic reflection line 12GA-T1: northeastern Albany-Fraser Orogen, in Albany-Fraser Orogen seismic and magnetotelluric (MT) workshop 2014: extended abstracts compiled by CV Spaggiari and IM Tyler: Geological Survey of Western Australia, Record 2014/6, p. 52-68.|Metagranodiorite, quartz metadiorite, metadiorite.|metamorphosed acid igneous rock|metamorphosed igneous rock||Y||17-JAN-23
Black Duck Tonalite|31068|||||Yes|Formation, beds|Formal|Resvd name published|Described|Tickalara Metamorphics|18130|Dougalls Suite|24927|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||Tyler I.|26-MAR-97|||McIntosh 1:100 000 map sheet, East Kimberley.|Foliated and metamorphosed leucocratic biotite-muscovite(-epidote) tonalite to granodiorite; inclusions of epidote amphibolite|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Black Flag Group|28372|Black Flag Series|1786|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean|2675|3|||Neoarchean|2690||||3000|6000||No|68217||||||Used by Fairbridge (1953) to replace Black Flag Series, but no constituent units then, so Black Flag Beds was preferred. Corresponds to Black Flag Supersequence. In the Kalgoorlie Terrane in Eastern Goldfields Superterrane of the Yilgarn Craton. See also Black Flag beds, Black Flag Beds, Black Flag Formation for more information and history.|Quartz--feldspar?mica schist derived from felsic volcanic or volcaniclastic protolith; metamorphosed|metamorphosed acid igneous rock|siliciclastic sedimentary rock||N||08-MAY-23
Black Hill Well Monzogranite|68511|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3018|19||intrusion|Archean|3018|19||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|07-JUN-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Has a crystallisation age of 3018+/-19Ma; later, leucocratic veining during a 2970+/-5 magmatic event.  Intrudes Ruth Well Formation (Roeburne Group) and Andover Intrusion.|Weakly foliated monzogranite; leucocratic veins; metamorphosed.|acid intrusive rock|||Y||04-APR-23
Black Rabbit Member|29567|||||Yes|Member, phase|Formal|Other new published name|Fully described|Missouri Basalt|23801|||||||deposition|||||||||No|43101|||||||||||N||17-JAN-23
Black Range Dolerite|1809|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Neoarchean|2772|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2775|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|37818||||||Published as Black Range Suite in 94/27988. Not used since 1998. Replaced by Black Range Dolerite Suite from 1999 to ~2013, but In 2018 GSWA has taken the decision to return to using this name. Intrudes Muccan and Mount Edgar granitoid complexes. A prominent swarm of black to very dark brown weathering dolerite dykes with north to north-east strike-related to basaltic lavas Mount Roe Basalt (of Fortescue Group). See also GSWA ENS: Hickman, AH (partial report), Black Range Dolerite (A-_bg-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 03 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dyke; local gabbro; weakly metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Black Rock Granodiorite|30673|Black Rock Tonalite|78962|||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43281||||||Note: both Black Rock Subgroup (NSW) and Black Rock Sandstone (Vic) have priority and are unrelated. Black Rock Granite NSW, is invalid and unrelated.  King Leopold Orogen.  Age: c.1865-1850Ma.|Biotite-hornblende granodiorite and tonalite.|acid intrusive rock|||Y||17-JAN-23
Black Swan Komatiite|35661|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|23131|||||||||||N||17-JAN-23
Blackfella Rockhole Member|1854|||||Yes|Member, phase|Formal|Other new published name|Redefined|Antrim Plateau Volcanics|488|||Early Cambrian||||eruption|Early Cambrian||||||100|WA|No|28255|41840|||||Fine grained basalt and basaltic breccia. Kalkarindji Province.|Interbedded basalt and agglomerate, minor intercalated sandstone and siltstone.|basic volcanic rock|||N||17-JAN-23
Blackstone Range Gabbro|24731|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Mesoproterozoic|1080|||intrusion|Mesoproterozoic||||||||No|30386|||||||Troctolite, norite, gabbro.|basic intrusive rock|||Y||17-JAN-23
Blacktip Member|77450|||||Yes|Member, phase|Informal|Processing pending|Described|Treachery Formation|35919|||Sakmarian||||deposition|Sakmarian||||||||No|67354||||||Informal name for the upper part of the Kuriyippi Formation, which this author says needs redefining; he includes it in the Treachery Formation.|||||N||17-JAN-23
Blacktop kimberlite|82996|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||The Blacktop province in the Ashburton region of Western Australia comprises three known dyke and sill occurrences of kimberlite (Jaques 2008). Little appears to be known though Matchan (2008) indicates they are diamondiferous. The unit is undated, Jaques (2008) suggests a Mesozoic age.|Kimberlite dykes and sills|exotic composition igneous rock|||Y||17-JAN-23
Blina Shale|25793|Wongal Shale|20438|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Olenekian|||inferred, biostratigraphic correlation|deposition|Induan|||inferred, biostratigraphic correlation||300|403|WA|No|39796|45153|||||Originally of Reeves (1951). Also supersedes Wonjil Shale. See also Lexicon. Also previously named Belina Shale.|Fossiliferous and commonly bioturbated well-bedded siltstone with common small-scale cross beds, shale, and very fine sandstone, mudstone. Minor phosphatic horizons.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Blinker Hill Sandstone Member|1959|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Warton Sandstone|19549|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|30897||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Bloods Range Formation|36765|Bloods Range beds|29413|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Tjauwata Group|36772|||Neoproterozoic|||inferred, overlying unit|deposition|Mesoproterozoic|||inferred, underlying unit|||100|NT|Yes|50321|65256|C.J. Edgoose, D.F. Close||Kruse, P.D.|21-JAN-02|Name not originally reserved. This unit also occurs near Mt Bertreaux (along Wankari Detachment Zone). Underlies Amadeus Basin sediments.|Red shales, polymictic conglomerate, sandstone, siltstone; tuffaceous horizons and local lensoidal quartz sandstone beds; felsic and mafic schist derived from volcanic rock, schistose quartz conglomerate.|metasedimentary siliciclastic rock|metamorphosed igneous rock||N||17-JAN-23
Blue Billy Formation|32054|Jillawarra Formation|8954|||Yes|Formation, beds|Formal|Resvd name published|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation|||500|WA|No|22905|24183|Bagas, L.|19-NOV-97|||In the Edmund Basin. Minimum age constrained by regionally discordant dolerite sill (1072+/-8 Ma), but otherwise constrained by age of Edmund Group.|Locally sulphidic siltstone and mudstone with minor thinly to thickly bedded sandstone, chert, claystone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Blue Hills Sandstone|1988|Policeman Well Sandstone""|35703|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Munda Group|34767|||Llandovery|435|||deposition|Upper Ordovician|445|||||1900||No|31698|23282||||||Sandstone, red-brown, fine to medium-grained, kaolinitic, with pebble beds. Trace fossils, cross bedded|siliciclastic sedimentary rock|||N||17-JAN-23
Boab Formation|78346|Boab Sandstone|2044|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||||||deposition|||||||||No|||Allen, H. (GSWA)|19-AUG-13|||A correlation of this unit in wells across the Barbwire Terrace includes mudstone, sandstone and carbonate lithologies, the name Boab Sandstone is no longer suitable. wheretobepublished = A Revised Subsurface Devonian Stratigraphy for the Central and Southern Canning Basin. GSWA Report to be published early 2014.|||||N||17-JAN-23
Bobbie Point Metasyenogranite|75662|Bobbies Point Alkali Granite|2050|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Statherian||||intrusion|Statherian|1708|15||||||No|67380||Spaggiari, C. (GSWA)|12-MAR-10|||In the NE part of the Albany-Fraser Orogen, Neale 1:250 000 sheet area SH5104, Scherk Range 1:100k, 3840. Previously called the Bobbies Point Alkali Granite|Pink, medium- to coarse-grained, seriate to equigranular, variably strained and mylonitized metasyenogranite; weak to moderate, NE-trending foliation. Includes minor mingled mafic rocks and minor BIF rafts.|metamorphosed acid igneous rock|||Y||04-APR-23
Bobbies Point Alkali Granite|2050|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|40811||||||||acid intrusive rock|||Y||17-JAN-23
Bobbymia Basalt|81849|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||Haines, P. (GSWA)|28-FEB-20|||Occurs on the SAVORY 100k and Robertson 250k map sheets. Nearest town is Newman, 158km to WNW. Named for Bobbymia Creek. Limited outcrop, but fully cored in mineral exploration drillhole 07THD003 where it is 122 m thick. About 145 km2 in area (mostly under cover) based on geophysical data. Geochemically distinct from other basalts and dolerites in the area. To be published in GSWA publication [unspecified].|Basalt flows interbedded with minor sedimentary rocks.|basic volcanic rock|||N||17-JAN-23
Bobs Bore Conglomerate|2055|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Famennian||||deposition|Frasnian||||||240||No|44397|||||||Boulder, cobble and pebble conglomerate,  coarse-grained conglomeratic sandstone, clasts mainly of Precambrian quartzite.|siliciclastic sedimentary rock|||N||17-JAN-23
Boee beds|75576|Boee Beds|2068|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cryogenian||||deposition|Cryogenian||||||350|WA|No|65074||||||Defined as Boee Beds 1973. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 353, 357. May be lateral equivalent of Redcliff Pound Group. Neoproterozoic.  Age from K.Grey (GSWA, Memoir #3, 1990).|Medium to fine grained lithic sandstone with minor conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Bolgumirri Member|23402|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|40993||Trendall, A.F.|12-APR-83|||||carbonate sedimentary rock|||N||17-JAN-23
Boll Conglomerate|2126|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Mahony Group|23749|||Frasnian||||deposition|Frasnian|||||||WA|No|41840|41840||||||Pebble to boulder conglomerate pebbly sandstone, quartz arenite and minor siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bon Accord Jaspilite Member|2153|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean|||inferred|deposition|Archean|||inferred|||||No|30562|||||||||||N||17-JAN-23
Bonaparte Formation|2161|Bonaparte beds|2164|||Yes|Formation, beds|Formal|Variation of published name|Defined|Langfield Group|10161|||Tournaisian|||inferred, biostratigraphic correlation|deposition|Upper Devonian|||inferred, biostratigraphic correlation|||279|WA|No|41839|40993|||||Offshore shale and siltstone equivalent of Langfield and Ningbing Groups, also Cockatoo Group equivalent. See also Bonaparte Formation, Upper and Bonaparte Formation, Lower. Divided into upper and lower parts on the basis of palynological assemblages.|Shale, siltstone, dolomitic sandstone and quartzitic limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Bongabinni Formation|23405|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carribuddy Group|3686|||Sandbian|||inferred|deposition|Sandbian|||inferred|||210|WA|No|40837|40837|P.Lehmann|20-JAN-84|||Acts as a seal for the Nita Formation hydrocarbon reservoir. Maximum thickness in Kidson 1.|Dominantly red-brown mudstone, often calcareous or dolomitic, with interbeds of argillaceous dolomite and rare thin beds, veins and scattered crystals of halite and anhydrite.
 Includes a fine-grained sandstone unit in the upper portion.|fine grained siliciclastic rock|carbonate sedimentary rock||N||20-SEP-23
Bonney Downs Monzogranite|39732|Bonney Downs Granite|23406|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Split Rock Supersuite|68672|Mesoarchean|2838|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Mesoarchean|3199||inferred, intrusive relationship|||||No|24193||||||Also older Sm-Nd dates (3280, 3260 Ma) for Bonney Downs Granite [but said to intrude Golden Eagle Orthogneiss which is ~3199-3178 Ma].|Monzogranite; medium grained; locally sparsely porphyritic; locally muscovite bearing.|acid intrusive rock|||Y||04-APR-23
Bonnie Vale Tonalite|32179|Bonnievale Tonalite|2181|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean||||intrusion|Neoarchean|2680|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|43232||||||Kalgoorlie 1:250 000 sheet area.|Biotite-bearing tonalite; medium- to coarse-grained, equigranular; massive; intruded by auriferous laminated quartz reefs; metamorphosed.|acid intrusive rock|||Y|I-type|04-APR-23
Bonsers Claystone|34483|Bonsers Claystone Member|21288|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Holocene||||deposition|Holocene||||||||No|22769|||||||Claystone|fine grained siliciclastic rock|||N||17-JAN-23
Booanya Suite|79197|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Esperance Supersuite|78596|Stenian|1140||inferred, geochemical correlation||Stenian|1200||inferred, geochemical correlation|||||No|70182||Spaggiari, C. (GSWA)|23-JUN-15|||Map Sheet=Balladonia SI51-3, 3632. Nearest Town=Esperance. Brief description: Undeformed to weakly deformed granite; typically porphyritic. Published in 2015 in Geological Survey of Western Australia Report 150.|Granites, ferroan, alkali-calcic to alkalic; characteristically strongly enriched in REE. A-type.|acid intrusive rock|||Y||17-JAN-23
Boobina Porphyry|2189|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Corunna Downs Granitoid Complex|34394|Emu Pool Supersuite|68766|Paleoarchean|3307|19|isotopic, U/Pb|eruption|Paleoarchean|3315|4|isotopic, U/Pb-Pb/Pb ion probe||||WA|Yes|31853|31853|Lipple S.L.||WA SNSC|31-MAR-76|Intruded Warrawoona Group.|Dacite porphyry. Euhedral to subhedral plagioclase and quartz phenocrysts up to 5 mm long set in a dark aphanitic groundmass. Plagioclase (An30) laths commonly form glomeroporphyritic groups.|acid igneous rock|||Y||17-JAN-23
Boodalla Suite|34997|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|23046|||||||||||Y||17-JAN-23
Boodanoo Suite|74954|Narndee Suite|74874|||Yes|Group, Suite|Formal|Variation of reserved name|Described|||Annean Supersuite|74813|Neoarchean|2800|6|isotopic, U/Pb-Pb/Pb ion probe||Mesoarchean||||||||No|64891||Ivanic, T., Van Kranendonk, M. (GSWA)|16-JAN-09|||Geological province: Murchison Domain.  Age: c.2780Ma.|Layered gabbro, with dunite, pyroxenite, anorthosite, and hornblende gabbro; includes younger leucogabbro; metamorphosed|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||19-JUL-23
Boogardie Orbicular Granite|81966|Boogardie orbicular granite|69627|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2691.5|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2691.5|1.9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72724||||||Small shallow, saucer-shaped intrusion (sill) within a porphyritic monzogranite pluton of regional extent. Outcrop on Boogardie Station called 'Pretty Rock' since the 1880s.|Subspherical orbicules, about 5 to 15 cm diameter, within a medium to coarse-grained granitic matrix. The distinctive orbicules are composed of concentric shells of radiating hornblende and plagioclase feldspar crystals.|acid intrusive rock|||Y||17-JAN-23
Bookara Sandstone Member|2196|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Kockatea Shale|9696|||Induan||||deposition|Induan||||||||No|31910||||||(Playford et al., 1976).|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bookargemoona Tonalite|68501|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tambina Supersuite|68742|Paleoarchean|3427|4||intrusion|Paleoarchean|3435|3||||||No|63441|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|Intruded by Carbana Monzogranite (Emu Supersuite). Structurally underlies and locally intrudes basal part of Panorama Formation (Warrawoona Group). In the East Pilbara Terrane.|Strongly foliated to gneissic biotite tonalite containing greenstone xenoliths; the gneissic compositional layering is complexly folded.|acid intrusive rock|||Y||17-JAN-23
Bookingarra Group|29942|Bookingarra Formation|70133|||Yes|Group, Suite|Formal|Resvd name published|Defined|De Grey Supergroup|69685|||Mesoarchean|2943|7|isotopic, U/Pb-Pb/Pb ion probe||Mesoarchean|2955||inferred||||WA|Yes|23793||Smithies R.H.|11-DEC-95|||Sherlock 1:100 000 sheet.  Name abandoned by GSWA (Mar.06) - formerly parent of Louden and Mount Negri Volcanics (both now Members of the new Bookingarra Formation), Cistern Formation, Kialrah Rhyolite and Rushall Slate (all 3 now part of Croydon Group).  The Bookingarra Group has been reinstated in 2016. Reinterpreted structural, stratigraphic, and geochronological data indicate that the succession of the Whim Creek greenstone belt was not deposited immediately adjacent to the succession of the Mallina Basin and that several of the correlations made by Van Kranendonk et al. (2006) are incorrect (Hickman, 2016).|Volcaniclastic sedimentary rocks, siliciclastic rocks and basalts which unconformably overlie Whim Creek Basin.||||N||17-JAN-23
Boolagoorda Sandstone|79780|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Silurian||||deposition|Ordovician||||||||No|||Hocking, R. (GSWA)|16-MAR-17|||Carnarvon Basin. Needed as a result of new age data. To be published in AJES.||siliciclastic sedimentary rock|||N||17-JAN-23
Boolaloo Granodiorite|2216|Boolaloo Granite|2215|||Yes|Formation, beds|Formal|Variation of published name|Described|||Moorarie Supersuite|33440|Statherian|1684||isotopic, Rb/Sr||Statherian|1786|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|34066||||||See also Boolaloo Granite. Gascoyne Province. Shown as part of -Pg on Wyloo 1:250k map sheet.  Previously in Boolaloo Supersuite but GSWA have discontinued this supersuite in favour of Moorarie Supersuite (S.Sheppard, pers. comm., Oct 2008)|Biotite granodiorite (locally adamellite).|acid intrusive rock|||Y||17-JAN-23
Boolgeeda Iron Formation|2227|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hamersley Group|8005|||Siderian|2445|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Siderian|2451||inferred|||450|WA|No|44729|33544|||||Ages from Trendall et al (2004), RefID 60706.|Fine-grained, finely laminated iron-formation, mudstone, siltstone, and chert; minor dolomite, sandstone, conglomerate, and diamictite.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||05-APR-23
Boonadgin Dolerite|79782|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Orosirian||||intrusion|Orosirian|1888||isotopic, U/Pb-Pb/Pb, TIMS|||||No|||Stark, C. (Curtin U)|27-MAR-17|||Name requested: Boonadgin Dyke Suite. Dolerite dykes. Map Sheet: Pinjarra SI 50 -02.  Nearest Town: Pingelly. NW trending dolerite dykes in SW Yilgarn, discernible in aeromagnetic maps. Three dykes dated at 1888 Ma with SHRIMP and TIMS U-Pb. Named after Boonadgin Nature Reserve near the location of the key sample from which the new age was first identified. To be published: Manuscript to be submitted to Precambrian Research by the end of March 2017.|Dolerite dykes.|basic intrusive rock|||Y||17-JAN-23
Boonall Dolomite|2250|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran|||||40|100|WA|No|44317|45047|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidean age.|Basal interbedded laminated buff dolomite and flaggy dolomitic siltstone; common upper intraclastic, peloidal, oolitic and stromatolitic grainstone. Discontinuous lenticular  beds of graded and massive conglomerate above laminated dolomite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Boondawari Formation|23409|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Ediacaran|610|||deposition|Cryogenian|670|||||800|WA|No|41768|41768|I.R.Williams|05-AUG-86|||Age: 610 Ma. Formerly of Savory Group. In the Savory Sub-basin. Intruded by "Boondawarri Dolerite".|Diamictite, conglomerate, sandstone, siltstone, shale and carbonates, including distinctive oolitic and pisolitic limestone and stromatolitic dolomite.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Boongal Formation|2261|Boongal Pillow Lava Member|2262|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2730||inferred, geological correlation|eruption|Neoarchean|2745||inferred, underlying unit|||1200||No|42471||||||Ages from Trendall et al (2004), RefID 60706.|Pillowed and massive basaltic flows with basaltic breccia, siltstone and mudstone; minor chert; metamorphosed.|basic volcanic rock|||N||05-APR-23
Boongerooda Greensand Member|2266|Boongerooda Greensand|27719|||Yes|Member, phase|Formal|Variation of published name|Described|Cardabia Calcarenite|3589|||Thanetian||||deposition|Thanetian||||||||No|41271||||||See also Boongerooda Greensand. Age: 61.5-60Ma.|||||N||17-JAN-23
Bootenall Limestone Member|77196|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Tamala Limestone|17719|||Pleistocene||||deposition|Pleistocene||||||||No|61811|||||||Reef limestone; massive accumulation of collapsed coral fronds of Acropora.|carbonate sedimentary rock|||N||17-JAN-23
Bora Monzogranite|2301|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42705|||||||Medium-grained, equigranular biotite monzogranite; scattered mafic enclaves and strong foliation.|acid intrusive rock|||Y||17-JAN-23
Borda Sandstone|25804|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lutetian||||deposition|Lutetian||||||5|WA|No|44998|45153|||||See also Lexicon. This unit too young to be part of Canning Basin as defined in Provinces database, but GSWA has a broader definition. Different unit to Early Cretaceous Borda Formation of Bight Basin, SA.||siliciclastic sedimentary rock|||N||17-JAN-23
Borde Formation|2312|||||Yes|Formation, beds|Formal|Other new published name|Described|Bathurst Island Group|1249|||Upper Cretaceous||||deposition|Upper Cretaceous||||||||No|42053||||||Offshore unit.|||||N||17-JAN-23
Border Creek Formation|2314|Border Creek Member|2316|||Yes|Formation, beds|Formal|Other new published name|Defined|Wadeye Group|74204|||Stephanian||||deposition|Westphalian||||||||No|45038|45038|||||Also Defn on Tech File D/52-14. Has been used for Waggon Creek Fm+Point Spring Sst. Onshore unit of Wadeye Gp. Regarded as part of Point Spring Sst by Mory and Beere(1988) but actually overlies it; onshore equiv. of Kuriyippi Fm. Formerly of Point Spr Sst. See also Point Spring Sandstone.|Quartz sandstone, conglomerate, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Border Group|38672|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Windimurra Complex|27936|Archean|||||Archean|||||100|||No|23787|||||||Dolerite; typically recrystallised at amphibolite facies. Includes Norie Group wall rocks / xenoliths.|basic intrusive rock|||N||17-JAN-23
Bore Well Complex|38656|||||Yes|Group, Suite|Informal|Variation of published name|Described|||||Neoarchean|||||Neoarchean|2708|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|23786||||||Unclear why this was considered 'Not a stratigraphic name' in 2001, but name continues to be used, and rocks described. Kurnalpi Terrane. See also Bore Well complex and Bore Well rhyolite. Age is for a rhyolitic volcaniclastic rock within the Complex.|Andesites and volcaniclastic rocks with minor dacites, rhyolites and intrusions.|intermediate volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Boreas suite|2329|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Neoarchean|||||Neoarchean|2637|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|41988||||||Eastern Goldfields Province. Age derived from coarsed grained porphyritic granite sample. See also 'Mount Boreas' names.|Includes undeformed, coarse-grained, porphyritic granite.|acid intrusive rock|||Y||17-JAN-23
Boronia Swamp Alluvium|25805|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Eocene|||||Upper Cretaceous|||||||WA|No|37341|37341||||||||||N||17-JAN-23
Bossut Formation|28391|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pleistocene||||deposition|Pleistocene||||||20|WA|No|44998|45153|||||This unit is not included on GSWA maps since about 2000.  eg, mapped as un-named coastal dune and beach deposits on 2006 Port Hedland 250K and 2000 Roeburne 250K map. This unit is too young to be part of Canning Basin as defined in Provinces database, but GSWA uses a broader definition.|Calcarenite; minor calcirudite and calcilutite.|carbonate sedimentary rock|||N||17-JAN-23
Bottle Corner Shoshonite|79173|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Moodini Supersuite|79174|Stenian|||||Stenian||||||||No|71165||Spaggiari, C. (GSWA)|19-AUG-15|||Forrest SH52-10. In a drillhole through Eucla Basin. Mafic to intermediate metagranite. To be published=GSWA Record, September 2015.|Diorite to metamonzodiorite.|intermediate intrusive rock|metamorphosed igneous rock||Y||17-JAN-23
Bottle Creek Microgranite|69576|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|69152||Wyche, S.|09-AUG-05|||To be used for porphyritic microgranite on map sheet SH 51-5; nearest town is Menzies.|Feldspar- and quartz-phyric microgranite; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Boulder Tuffite|2378|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described||||||||||||||||||No|33513||||||Probably surficial unit of Boulder Dyke.|||||N||17-JAN-23
Bounty Igneous Complex|78349|Prairie Downs Dyke Suite|80100|||Yes|Group, Suite|Formal|Resvd name published|Described|||||Neoarchean|2698|1|inferred||Neoarchean|2711|4|inferred|||||No|70153||Sapkota, J. (GSWA)|30-AUG-13|||The Bounty Igneous Complex is an extensively developed mafic-ultramafic intrusive unit that concordantly lies between the Songvang Formation and the Never Can Tell Basalt in the Lawlers Anticline. It is characterized by two fractionation cycles that grade from peridotite and pyroxenite at the base through gabbro to dolerite on the top. wheretobepublished = GSWA digital package 2013/2014. Geographical name = Bounty Group mine.|Dolerite, fine to medium grained, locally feldspar-phyric. Gabbro and pyroxenite, medium to coarse grained. Peridotite with cumulate texture and minor pyroxenite. All metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Bow Hill Lamprophyre Suite|78619|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Cryogenian|||||Tonian|815|20|isotopic|||||No|69165||||||See variations of Bow Hill lamprophyre.|Olivine-phlogopite lamprophyre and garnet-phlogopite lamprophyre.|exotic composition igneous rock|||Y||17-JAN-23
Bow River Granite|2394|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Orosirian|1834|32|isotopic, Rb/Sr|intrusion|Orosirian|1853|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|44317||||||On Bow 100K map (GSWA, 1999) superseded by Paperbark and Sally Down Supersuites? Proposed this be redefined as Bow batholith, reflecting the diversity of granitoid rocks - will incl: Sally Downs, Violet Valley Tonalites, some of Mabel Downs. But published as Bow River Granite on Auvergne 100K and 1:250k maps (NTGS, 2000, 2006, 2015), and in GSWA Kimberley update 2013., perhaps with modified distribution?|Typically a pink to green-grey, coarsely crystalline and porphyritic biotite granite; phenocrysts of K-feldspar locally displaying rapakivi textures.|acid intrusive rock|||Y||17-JAN-23
Boxies Bore Gabbro|2452|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|41594||||||||basic intrusive rock|||Y||17-JAN-23
Boyagin Dolerite|80595|Boyagin Dolerite Suite|79637|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|||Marnda Moorn Suite|80594|Mesoproterozoic|1202||inferred||Mesoproterozoic|1218||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Dolerite dykes, trending northwest to north-northwest.The dykes extend from east of Kalbarri in the north to Albany in the south. Assigned to Marnda Moorn Suite; age 1218-1202 Ma; emplaced during the formation of the Pinjarra Orogen (Darling Orogeny). See also GSWA ENS: Wingate, MTD (partial report), Boyagin Dolerite (P_-MMbo-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dykes.|basic intrusive rock|||Y||17-JAN-23
Bradley Basalt|31019|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Whundo Group|31020|||Mesoarchean|3115|5||eruption|Mesoarchean|3115|5||||4000||No|23794||Williams I., Hickman A.|10-MAR-97|||Precambrian. West Pilbara.|Pillow basalt, massive basalt, dolerite sills, and minor felsic tuff, sandstone, shale and chert; metamorphosed.|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||05-APR-23
Brady Well Monzogranite|78404|Brady Well monzogranite|72480|||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Neoarchean|2658|13||intrusion|Neoarchean||||||||No|65260||||||May be accidental capitalisation of informal name.|Monzogranite.|acid intrusive rock|||Y||17-JAN-23
Brandy Well Monzogranite|74601|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2658|13||intrusion|Archean|2658|13||||||No|60555||||||||acid intrusive rock|||Y||17-JAN-23
Brassey Range Formation|2511|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Salvation Group|35575|||Mesoproterozoic||||deposition|Mesoproterozoic||||||1250||No|42708||||||Formerly included in the Sunbeam Group. Age appears to be poorly constrained between Mesoproterozoic and Neoproterozoic.|Quartz sandstone and subordinate siltstone, predominantly cross-bedded, in places pebbly; mudstone; minor glauconitic sandstone, pebble conglomerate; fluvial to coastal deposits.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Breakaways layered mafic-ultramafic complex|80121|||||Yes|Formation, beds|Informal|Other new published name|Described|Bounty Igneous Complex|78349|||Neoarchean|2698.14|.95|inferred, overlying unit||Neoarchean||||||800||No|71212|||||||Massive, serpentinized dunite to peridotite, intensely foliated talc-tremolite-magnetite-carbonate schists. two peridotite>pyroxenite>gabbro fractionation cycles in Lawlers Anticline.|ultramafic intrusive rock|metamorphosed ultramafic rock||Y||17-JAN-23
Breens Porphyry|38598|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|23783|||||||||||U||17-JAN-23
Bresnahan Group|27346|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Statherian|1610|||deposition|Orosirian|1817|||||4000||No|31393||||||First described by Talbot (1926); defined by Daniels and MacLeod (1965). Age range constrained by Wyloo Group (below) and Bangemall Group (above) that sandwich it. In 2012 (GSWA Record 2011/25) age range shown as 1800-1465 Ma. Bresnahan Basin.|Both matrix-supported and clast-supported boulder conglomerate, conglomeratic sandstone, pebbly sandstone dominates, interbedded fine sandstone and mudstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Bresnahan-Mount James Supersequence|34390|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Briefly described|||||Statherian|1680||||Statherian|1724|||||||No|22682||||||1724-1680 Ma.|||||N||17-JAN-23
Breton Marl|2525|||||Yes|Formation, beds|Formal|Other new published name|Described|Coolyena Group|4565|||Maastrichtian||||deposition|Maastrichtian||||||||No|42123|||||||Marl|carbonate sedimentary rock|||N||17-JAN-23
Brewster Member|2530|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Vulcan Formation|19148|||Berriasian||||deposition|Berriasian||||||||No|42053||||||upper Vulcan Formation? Probably intended to mean the Berriasian sands in the Brewster 1A well, in the Caswell sub-Basin.|A thick sequence of clean, relatively high net/gross sands with mudstones; deposited by poorly confined, sand-rich, mid-slope grain flows or high-density turbidity currents on a deep-water ramp.|siliciclastic sedimentary rock|||N||17-JAN-23
Bridget Creek Monzogranite|83421|Bridget Adamellite|24197|||Yes|Formation, beds|Reserved|Reserved|Reserved|Bridget Suite|33103|||Proterozoic|||||Proterozoic||||||||No|||Hickman, A.  (GSWA)|22-JUN-22|||A discordant, rectangular-shaped stock NE of Bridget Creek-Nullagine River confluence.|||||Y||17-JAN-23
Bridget Suite|33103|Bridget Adamellite|24197|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Statherian|1703|3|isotopic, Ar/Ar|intrusion|Orosirian|1803|19|isotopic, U/Pb-Pb/Pb ion probe|||||No|50435||||||NULLAGINE and YARRIE 1:250 000 sheet areas. Pilbara Province. First used by the Proterozoic Granites Project.|Trachyandesitic, trachytic, and lamprophyre dykes, porphyritic; hornblende monzogranite, granodiorite, micromonzonite, microsyenite, and micromonzodiorite, in small stocks.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Bridport Calcilutite|2550|Bridport|21327|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene|||||Holocene||||||10|WA|No|41200|41200|||||Reserved as Bridport (Semeniuk 1987).|Grey, primarily carbonate sandy mud and mud infilling deep, relatively still-water environments of the central basin of Cockburn Sound.|sediment|||N||17-JAN-23
Brigadier Formation|25810|Brigadier Beds|23417|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Sinemurian|192||inferred|deposition|Rhaetian|202||inferred||22.5||WA|No|40617|40617|||||Ages, relations updated from GA Timescales Project Feb 2009.|Medium-grained sandstones with shell fragments and common rip-up clasts; fine-grained sandstones with tidal varves and shell lags; dark grey heterolithic mudstones with common Teichichnus trace fossils; calcified sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Brill Monzogranite|68512|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean||||intrusion|Archean|2990|||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Also, for use on PINDERI HILLS map sheet; nearest town Karratha.|Monzogranite, and lesser granodiorite, foliated and locally gneissic; medium-grained, but characterised by ubiquitous megcrysts of microcline; minor hornblende.|acid intrusive rock|||Y||17-JAN-23
Brilliant Formation|77848|Brilliant Ultramafics|77847|||Yes|Formation, beds|Formal|Variation of reserved name|Described|Coolgardie Subgroup|77855|||Neoarchean|2699||inferred|deposition|Neoarchean|2726||inferred|||||No|70153||Hall, C. E. (GSWA)|24-APR-13|||Kalgoorlie map sheets, SH51-09, 3136, Coolgardie area. Extrusive meta-ultramfic to high-Mg unit with localised spinifex textures. Overlain by the Lindsays Basalt (lateral equivalent to the Lunnon Basalt) and overlies the Burbanks Formation.To be published: Electronic and digital update of the East Yilgarn package, in 2013. Geological Survey of Western Australia, Department of Mines and Petroleum|Komatiitic basalt to high-magnesium tholeiitic basalt; thin, fine-grained, siliceous sedimentary units; rare spinifex textures; metamorphosed.|metamorphosed ultramafic rock|||N||17-JAN-23
Brim Rockhole Formation|79448|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Halls Creek Group|27793|||Orosirian|1881|4|isotopic|deposition|Orosirian|1909|10|isotopic, U/Pb-Pb/Pb ion probe|||||No|71397||Phillips, C. (GSWA)|01-JUN-16|||Map Sheet: Halls Creek 4461, Gordon Downs SE52-10. Laminated, fine-grained quartzite grading locally into graphitic metasandstone and schist. Conformably overlain by calcareous metasandstone, metasiltstone, carbonate schist and marble. Metasedimentary rocks are intercalated with bimodal metavolcanic rocks. Metamorphosed to upper greenschist facies. This new formation will be defined in a GSWA report on the geology of the Eastern Zone of the Lamboo Province, Halls Creek Orogen, northern WA. This report will be published within the next few months (beginning of the 2016/17 financial year). New formation name; formerly of the lower part of Biscay Formation, but redefined as a new formation based on significant differences in sedimentology and SHRIMP U-Pb zircon geochronology.|Laminated, fine-grained quartzite grading locally into graphitic metasandstone and schist. Conformably overlain by calcareous metasandstone, metasiltstone, carbonate schist and marble. Intercalated with bimodal metavolcanics|metasedimentary siliciclastic rock|||N||17-JAN-23
Bringo Shale|2572|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Champion Bay Group|25840|||Bajocian||||deposition|Bajocian||||||2.4|WA|No|34134|36293||||||Friable black shale with thin yellow phosphate bands; containing palynomorphs, foraminifera and vertebrate remains.|fine grained siliciclastic rock|||N||17-JAN-23
Broad Arrow Subgroup|79354|||||Yes|Subgroup|Formal|Resvd name published|Briefly described|Kalgoorlie Group|26647|||Neoarchean|||||Neoarchean||||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Historical name has been used from prominent Township on the Bardoc map sheet - Broad Arrow. Lies within the Bardoc and Kalgoorlie 1:100K sheet areas. Forms part of the Kalgoorlie Group in the Eastern Goldfields Superterrane of the Yilgarn Craton. It includes the Highway Formation and Scotia Basalt. To be published = GSWA digital release 2016.|Basalt and komatiite; local relict pyroxene spinifex texture; minor interflow sedimentary rock; metamorphosed.|basic volcanic rock|ultramafic volcanic rock||N||20-AUG-23
Broadhurst Formation|2592|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Throssell Range Group|70719|||Neoproterozoic||||deposition|Neoproterozoic|||||2000|3000||No|33849||||||Hosts Cu-Pb-Zn mineralisation.|Interbedded fine to coarse sandstone, siltstone, silty shale, pyritic and pyrrhotitic shale, dolomite, stromatolitic dolomite, local basalt|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Broadhurst Formation - carbonate|74358|||||Yes|Member, phase|Informal|Variation of published name|Not recorded|Broadhurst Formation|2592|||Cryogenian||||deposition|Cryogenian||||||||No||||||||Carbonate rock and minor shale, commonly sulphidic|carbonate sedimentary rock|mineralisation||N||17-JAN-23
Brockman Creek kimberlite|78365|Brockman Creek Kimberlite|78448|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Orosirian|||||Orosirian||||||||No|69012||||||See also Brockman Creek Kimberlite.|kimberlite dyke|ultramafic intrusive rock|||Y||17-JAN-23
Brockman Iron Formation|2602|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hamersley Group|8005|||Siderian|2451||inferred|deposition|Neoarchean|2495|16|isotopic, U/Pb-Pb/Pb ion probe|||620|WA|No|44729|44503|||||Contains the majority of main iron ore zones. Ages from Trendall et al (2004), RefID 60706. See also the many informal or misspelled variations on Brockman %.|Banded iron-formation, chert, mudstone, and siltstone; minor dolerite sills.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||29-JUN-23
Brodagee Sandstone|2608|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Mount Minnie Group|29294|||Statherian||||deposition|Statherian||||||||No|44477|||||||Quartz sandstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Bronzite Complex|2625|||||Yes|Group, Suite|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|32092||||||See also the informal Bronzite Ridge complex.|||||N||17-JAN-23
Brooks Hill Formation|38756|Brooks Hill Beds|2635|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|24025|||||||||||N||17-JAN-23
Broome Sandstone|2645|Broome Beds|2643|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Barremian||||deposition|Valanginian||||||300|WA|No|44040|45153|||||See also Lexicon. Formerly considered part of Dampier Group.|Fine- to very coarse-grained sandstone; minor mudstone and conglomerate; deltaic|siliciclastic sedimentary rock|||N||17-JAN-23
Broome, Mowla and Melligo Sandstones|80960|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Lower Cretaceous|||inferred, biostratigraphic correlation||Lower Cretaceous|||inferred, biostratigraphic correlation|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Informal grouping of Early Cretaceous siliciclastic Canning Basin units. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Fine- to coarse-grained sandstone; minor mudstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Brougham sandstone|2656|||||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||||||deposition|||||||||No|40331||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Brown Gannet Limestone|25814|Woodbine Beds|20478|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Bathurst Island Group|1249|||Santonian||||deposition|Coniacian|||||||WA|No|41532|42442|||||Reserved as Gannet Formation - advised by R.Hocking 10-12-92.|Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Browne Formation|2683|Browne beds|2684|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buldya Group|33826|||Neoproterozoic|818||biozone|deposition|Neoproterozoic|840|||||2308||No|41751||||||Previously Browne Evaporites, Browne Beds, Browne beds. Age considered to be c.840 - c.818 Ma in 2000, when the base of the Cryogenian was 850 Ma [basis of numerical age assertions unclear].|Gypsum, dolomite, halite, anhydrite. Red-brown mudstone, argillaceous dolostone, sandstone, minor conglomerate.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Brownrigg Sandstone|23427|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tarcunyah Group|31872|||Cryogenian||||deposition|Cryogenian|||||400|600|WA|No|43056|41669|R.J.Chin, I.R.Williams|18-APR-83|||Balfour Downs explanatory notes. See also Brownrigg Formation.|Quartz sandstone, fine to coarse grained, moderately to well sorted, flaggy to cross-bedded; scattered pebbles of vein quartz.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||03-APR-23
Browns Range Metamorphics|30280|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Siderian|2504|4|||Neoarchean|2507|22||||1000|WA|Yes|43301|23621|Blake D.|26-MAR-96|Hocking, R.|22-APR-99|East Kimberley, Gordon Downs 1:250 000 sheet area. Different ages appear to represent different events.|Arkose metamorphosed to quartzofeldspathic granofels with sparse to abundant pebbles and cobbles; minor banded ironstone, siltstone, and foliated conglomeratic calc-silicate rocks.|metasedimentary siliciclastic rock|||N||17-JAN-23
Brunos Band|2724|Bruno's Band|2723|||Yes|Bed|Informal|Variation of published name|Briefly described|Mount Sylvia Formation|27207|||Archean|||||Archean||||||||No|43290||||||Informal. See also Bruno Member.|BIF.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Bryah Group|29869|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Orosirian|1920|35|isotopic, Pb/Pb model age|deposition|Orosirian|2014|22|inferred|maximum depositional age||||No|43238|65419|Pirajno F.|02-NOV-94|||SG50-8, Peak Hill. Reservation modified Oct 95. Glengarry Basin. Deposited in the Bryah rift. Max depositional age given by detrital zircons in Ravelstone Formation dated at 2014+/-22 Ma (Nelson,1997). Minimum age given by Pb-Pb isochron age of 1920+/-35 Ma from the Narracoota Formation (RefID 21099, 2000). Incorporates part of the Glengarry Group of Gee (1979, 1987).|Includes a sequence of greywacke and conglomerate; mafic-ultramafic volcanic rocks; turbiditic sedimentary rocks; chemical and fine-grained clastic units.|medium-coarse grained siliciclastic rock|basic volcanic rock|continental rift|N||17-JAN-23
Bubble Well Member|30238|||||Yes|Member, phase|Formal|Resvd name published|Defined|Juderina Formation|9050|||Rhyacian|2173|64|isotopic, Pb/Pb isochron age|deposition|Rhyacian|2258|180|isotopic, Pb/Pb isochron age|||160||No|43836|65419|Occhipinti S.|27-SEP-95|||Glengarry Basin.|Chert breccia, laminated (wavy microbial) chert and chertified stromatolitic dolomite; well bedded to chaotic breccias.|non-carbonate chemical or biochemical sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Buckland Point Member|2793|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Warton Sandstone|19549|||Statherian||||deposition|Statherian||||||||No|33851|||||||Thick-bedded, blocky to flaggy quartz sandstone interbedded with ferruginous sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Buddadoo Gabbro|2808|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Meeline Suite|74822|Neoarchean||||intrusion|Mesoarchean|2813||inferred|||||No|30973||||||After Buddadoo Hill (type area), Mellenbye 1:100k map sheet. Type area: 28deg 42'S 116deg 29'E.  Intrusive into possible Norie Group rocks and overlain by Polelle Group rocks.|Layered gabbroic rocks with distinctive magnetitite horizons and minor diorite; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Budjan Creek Formation|25816|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Soanesville Group|70124|||Mesoarchean||||deposition|Paleoarchean|3228|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1500|WA|Yes|45923|31853|Hickman A.H. and Lipple S.L.|15-JAN-75|WA SNSC|06-JAN-75|Formerly assigned to the Sulphur Springs Group, but now placed in the Soanesville Group (Hickman 2011 GSWA Annual Review 2009-10). Understanding of unit relationships has changed over time.|Basalt, generally pillowed, minor komatiitic basalt, metamorphosed; tuffaceous volcaniclastic sandstone, dacitic composition, weakly metamorphosed; felsic volcaniclastic sandstone, shale, local grey, white and black chert, weakly metamorphosed.|basic volcanic rock|sedimentary rock|continental rift|N||17-JAN-23
Bugle Gap Limestone|2833|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian||||deposition|Famennian||||||150|WA|No|48831|45153|||||See also Lexicon. Of Guppy et al. (1958).|Fossiliferous, shallow marine reef complex marginal slope facies, white to pink medium to thickly bedded calcarenite grading to calcirudite;crudely bedded; some allochthonous blocks lst, sst, siltst.|carbonate sedimentary rock|||N||17-JAN-23
Buldania Formation|2848|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Archean||||deposition|Archean|||||||WA|No|30959|30562|||||This name may be obsolete?|Tholeiitic and high MgO basalt.|basic volcanic rock|||N||17-JAN-23
Buldania Granodiorite|78636|Buldania Granitoid Complex|2849|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2655|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2660|9|isotopic, U/Pb-Pb/Pb ion probe|||||No|69152||||||Not related to Buldania Formation. Replaces 2849 Buldania Granitoid Complex?|Composite intrusion; predominantly seriate biotite-hornblende granodiorite; biotite-rich monzogranite; metagranitic rock; amphibole-rich metamonzogranitic rock.|metamorphosed acid igneous rock|||Y||17-JAN-23
Buldya Group|33826|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Neoproterozoic|700|||deposition|Neoproterozoic|830|||||4500||No|50205||Grey K.|14-DEC-99|||For succession from Heavitree Quartzite to Steptoe Formation. Named after Buldya Soak in Throssell 1:250 000 sheet area. Age: ca 830 to ca 700Ma.|Sandstone, siltstone, shale, dolomite, limestone, evaporites (halite, gypsum, anhydrite) in subsurface and diapirs. Mixed carbonate-clastic-evaporite succession.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Bulgadoo Shale|28411|Bulgadoo Series""|2856|||Yes|Formation, beds|Formal|Variation of published name|Defined|Byro Group|3230|||Artinskian||||deposition|Artinskian|||||60|520|WA|No|44537|45016|||||See also Lexicon.Contains significant hydrocarbon source rocks.|Shale, siltstone, minor quartz wacke, variably calcareous.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Bulla Rocks Monzogranite|21361|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2660|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|44203||Oversby B.|23-MAY-94||||Fine- to coarse-grained biotite monzogranite; K-feldspar phenocrysts, locally megacrystic; foliated.|acid intrusive rock|||Y|I-type|17-JAN-23
Bullabulling Monzogranite|2884|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||||No|9168|||||||Foliated, partly recrystallized monzogranite; quartz-biotite-oligoclase-microcline matrix and scattered microcline phenocrysts.|acid intrusive rock|||Y||17-JAN-23
Bullara Limestone|2887|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cape Range Group|3521|||Aquitanian|21|||deposition|Chattian|24.5|||||100|WA|No|46805|46805||||| Age: 24.5-~21Ma.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Bullgarina Monzogranite|39508|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Cleland Supersuite|68665|Paleoarchean||||intrusion|Paleoarchean|3294||inferred, intrusive relationship||||WA|No|65726||Williams, I.|23-OCT-03||||Biotite(--muscovite) monzogranite; medium to coarse grained; weakly metamorphosed.|intermediate intrusive rock|||Y||05-APR-23
Bullita Group|2914|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Calymmian|1570|||deposition|Statherian|1610||||||NT|No|32699|48943|||||Age: 1610-1570Ma. Birindudu Basin.|Dolostone, dolarenite, siltstone, sandstone, chert, shale.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bullo River Sandstone|26436|||||Yes|Formation, beds|Formal|Other new published name|Defined|Duerdin Group|5760|||Cryogenian||||deposition|Cryogenian||||||320|NT|No|32699|48938||||||Quartz sandstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Bullock Hide Intrusion|73594|Bullock Hide Well Complex|2919|||Yes|Formation, beds|Formal|Variation of published name|Described|||Railway Supersuite|68669|Archean||||intrusion|Archean|3120|||||||No|64174||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).  In the West Pilbara Superterrane.|Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite and minor anorthosite; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Bullock Hole Intrusion|31683|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Archean|||||Archean|2925|||||||No|43822||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic intrusions|ultramafic intrusive rock|||Y||17-JAN-23
Bullsbrook Formation|75568|Bullsbrook Beds|2929|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|44144||||||Described in GSWA Memoir 3 (1990) p504, 516-517.|Sandstone, siltstone, conglomerate, minor dolomite; fossiliferous|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Bulong Complex|2934|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Neoarchean|2705|4|||Neoarchean|2708|5|isotopic, U/Pb-Pb/Pb ion probe|||5000|WA|No|33847|33847||||||Komatiitic and high MgO dolerite rocks structurally interleaved with calc-alkaline feldspathic sandstones.|ultramafic volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Bulyairdie Monzogranite|2935|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42741|||||||Medium-grained, hornblende bearing, perthitic K-feldspar phenocrysts; unfoliated. High Ca granite.|acid intrusive rock|||Y||05-APR-23
Bunbury Basalt|2950|Bunbury Lava flow""|2951|||Yes|Formation, beds|Formal|Other new published name|Defined|Warnbro Group|19470|||Aptian|123|2|isotopic|eruption|Hauterivian|132|1|isotopic|||174|WA|No|43592|36293|||||See also Lexicon.|Porphyritic and microporphyritic basalt in multiple flows; minor dolerite and basalt sills.|basic volcanic rock|||N||17-JAN-23
Bundera Calcarenite|25709|||||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Holocene||||deposition|Piacenzian|||||||WA|No|30821|33593||||||Shoreline, marine and coastal aeolian deposits; includes coastal lake deposits. Calcareous aeolianite, coralgal reefs, coquina and shelly limestone, variably calcreted. |regolith|||N||17-JAN-23
Bundle Volcanic Member|79852|||||Yes|Member, phase|Reserved|Reserved|Reserved|Meekatharra Formation|74805|||Neoarchean|||||Neoarchean||||||||No|||Lowrey, J. (GSWA)|01-MAY-17|||Map sheet 2544 Meekatharra, SG50-11. Spinifex textured high-Mg basalt, locally with orthocumulate basal subunits. These are a texturally and geochemically distinct sub-unit within the uppermost part of the Meekatharra Formation. To be published = Volcanic member is described in detail in a journal publication in review (journal of Petrology). It will also be incorporated into GSWA 1:100,000 geological series mapsheet 2544 (Meekatharra) to be published in 2017.|Spinifex textured high-Mg basalt, locally with orthocumulate basal subunits.|basic volcanic rock|||N||17-JAN-23
Bungarra Igneous Complex|79520|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|2735||inferred||Mesoarchean|2820||inferred|||||No|69583||||||Clearly not related to Cenozoic Bungarra Member. Advice from GSWA that this part of a Suite, but need to know which one [CEB 7OCT2019]. Proposed to be added to Annean Supersuite (Ivanac, Sep2022).|Layered mafic and ultramafic intrusive rocks; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Bungarra Member|3005|||||Yes|Member, phase|Formal|Resvd name published|Described|Menzies Formation|26027|||Holocene||||deposition|Pliocene||||||||No|41199||||||Clearly not related to  Archean Bungarra Igneous Complex.|||||N||17-JAN-23
Bungle Bungle Dolomite|24791|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Mesoproterozoic||||deposition|Paleoproterozoic||||||300|WA|No|44317|45140|||||Defn on Tech File SE/52-6. Probably conformable on Mount Parker Sandstone. Limited to Osmond Range area.  No longer includes Halls Creek area dolomite (now the Neoproterozoic Eliot Range Dolomite). See also recent use of Bungle Bungle Formation.|Dolarenite, dololutite, and dolorudite, and chert breccia; commonly stromatolitic; minor dolomitic sandstone, siltstone and mudstone, and stromatolitic chert.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Bunjinah Formation|26440|Bunjinah Pillow Lava Member|3029|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2715||inferred, lithostratigraphic correlation|eruption|Neoarchean|2718||inferred, geological correlation|||900||No|42471||||||Ages from Trendall et al (2004), RefID 60706.|Pillowed and massive basaltic flows; basaltic breccia; and basaltic volcanic sandstone; minor chert; amygdaloidal basalt flows occur in upper parts of formation; metamorphosed.|basic volcanic rock|igneous volcanic rock||N||17-JAN-23
Bunnawarra Suite|78355|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Thundelarra Supersuite|78988|Mesoarchean|2930||inferred||Mesoarchean|2970||inferred|||||No|69583||Ivanic, T. (GSWA)|29-AUG-13|||Badja,  Rothsay, Youanmi 100k sheets.  To be used in the southern Murchison Domain. Named after Bunnawarra  Hsd, lat 28deg37', long 116deg34'. Age: 2970-2930 Ma. Type area: Outcrops around Kynea Rockholes. Metamorphosed 'basement' unit, no known older units in region.|Kynea Tonalite: Migmatitic tonalite to granodiorite gneiss with metagranitic leucosomes|metamorphosed acid igneous rock|high grade metamorphic rock||Y||17-JAN-23
Burbanks Formation|3056|||||Yes|Formation, beds|Formal|Other new published name|Described|Coolgardie Group|4536|||Neoarchean||||deposition|Neoarchean||||||||No|42221||||||Will be of Coolgardie Subgroup, when that name published [Charlotte Hall, GSWA 29-MAY-2013]|Tholeiitic basalt; massive, vesicular to porphyritic; variably foliated; includes rare ultramafic and sedimentary rocks; intruded by thin dolerite sills; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Burnakura Tonalite|74871|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Archean||||intrusion|Archean||||||||No|64891||Van Kranendonk, M. (GSWA)|10-NOV-08|||Originally named Federal City Tonalite but changed after nomenclatural debate - for use in the complete revision of the Murchison domain lithostratigraphy; to be published in GSWA Annual Review 2007-2008. Age ?2750 Ma. Geological province: Murchison Domain. Part of the Annean Supersuite.|Tonalite; weakly metamorphosed|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Burnside Granite (WA)|78652|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Mesoproterozoic|1170||||Mesoproterozoic|1190|||||||No|65487||||||1190-1170 Ma intrusion age. Intruded into the Nornalup Zone late in Stage II of the Albany-Fraser Orogeny. A voluminous porphyritic granite. NOT related to Paleoproterozoic Burnside Granite, NT.|Porphyritic granite|acid intrusive rock|||Y||17-JAN-23
Burra Monzogranite|27729|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2707|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|42698|||||||Coarse-grained biotite monzogranite; K-feldspar megacrysts; generally homogeneous, deformed at margins; possible a composite intrusion.|acid intrusive rock|||Y||17-JAN-23
Burragenup Member|23446|Burragenup member|3122|||Yes|Member, phase|Formal|Variation of published name|Defined|Safety Bay Sand|16508|||Holocene|.008|||deposition|Holocene|.008|||||40|WA|No|40367|40367|Semeniuk, V.|18-JAN-80|||Fine to coarse grained well sorted aeolianite, yellow coloured, poorly cemented, and with distinctive cross-bedding. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 1 (~8 ka).[Matej Lipar, Pers. Comm. Mar 2014]|Unit of aeolian sand and soil sheets. Partly indurated along laminae causing some lithification; abundant rhizoconcretions.|regolith|||N||17-JAN-23
Burrell Well Basalt|77941|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||eruption|Archean||||||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1,  Wildara 3041. Pyroxene spinifex-textured basalt; locally variolitic and/or pillowed; metamorphosed . To be published = GSWA geological map and explanatory notes, 2013/2014. Not related to Burrell Creek Formation, Burrell Creek Volcanics or misspelt Burrell Formation, all NT.|Komatiitic basalt; locally pillowed; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Burt Range Formation|3168|Burt Range Limestone|3171|||Yes|Formation, beds|Formal|Other new published name|Defined|Langfield Group|10161|||Tournaisian||||deposition|Tournaisian||||||460||No|48635|45038|||||Formerly Burt Range Series. Now includes Spirit Hill Limestone. Hosts Pb-Zn-Ag deposits.|Calcareous sandstone, quartzose limestone and dolostone, minor carbonaceous shale. A diverse fossil assemblage.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Burtville Granite|77546|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Archean||||intrusion|Archean|2716|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66880|||||||HFSE-granitoid intruded into mafic-volcanic and sedimentary rocks.|acid intrusive rock|||N||17-JAN-23
Burtville granodiorite|78512|Burtville Granite|77546|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean||||intrusion|Neoarchean|2716|4||||||No|68107||||||Intrudes the Burtville Sandstone.||acid intrusive rock|||Y||17-JAN-23
Burvill Formation|3187|Burvill beds|24800|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Weaber Group|19643|||Visean||||deposition|Visean||||||85||No|41839||||||Formally known as Burvill beds. Max. thickness: <80m.|Sandstone, typically fine- to very fine-grained; minor siltstone, shale, calcareous sandstone and quartzose limestone. A diverse assemblage of macrofossils, trace and microfossils.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Butcher Bird Monzogranite|34924|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2730|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|22902||||||Jackson 1:100 000 sheet area (2737). Intruded by Chatarie Well Granite.  Intrudes Marda Complex.|Fine- to medium-grained granophyric monzogranite; High-HFSE granite.|acid intrusive rock|||Y||19-JUL-23
Butchers Gully Member|23447|||||Yes|Member, phase|Formal|Resvd name published|Defined|Olympio Formation|14567|||Orosirian|1848|3|isotopic, U/Pb-Pb/Pb ion probe|eruption|Orosirian|1855|||||1000|WA|Yes|60724|23621|Griffin T.J. & Tyler I.M.|09-DEC-92|Hocking, R.|22-APR-99|East Kimberley Region. Within the Halls Creek Group. Age: c.1855Ma. Not related to Butchers Basalt, Yilgarn Craton.|Metamorphosed and chlorite altered trachytic and trachyandesitic volcanics and volcaniclastics, commonly with a carbonate rich matrix, and local ferruginous chert and metachert.|intermediate volcanic rock|igneous volcanic rock||N||17-JAN-23
Butchers Well Basalt|77933|||||Yes|Formation, beds|Reserved|Reserved|Fully described|||||Archean||||eruption|Archean||||||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1,  Munjeroo 2941.  Basalt; fine-grained with local pyroxene-spinifex texture, includes medium-grained layers and lenses; minor interflow sediments; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014. Not related to Butchers Gully Member.|Basalt; fine-grained with local pyroxene-spinifex texture, includes medium-grained layers and lenses; minor interflow sediments; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Butler Creek Formation|21405|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||Paleoproterozoic|1680|29|inferred, intrusive relationship|metamorphism|Paleoproterozoic||||||1000||No|43848||Bagas L., Hickman A.|11-MAR-93|||Rudall 1:100 000 sheet area.|Banded paragneiss with layers of quartz-feldspar-biotite gneiss, quartz-biotite schist, micaceous quartzite, quartz-muscovite schist and amphibole-chlorite schist. Local metamorphosed banded iron formation|foliated metamorphic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Buttons Formation|27667|Buttons beds|3212|||Yes|Formation, beds|Formal|Variation of published name|Defined|Ningbing Group|14166|||Famennian||||deposition|Famennian||||||350|WA|No|41839|41864|||||Equivalent to Ningbing Group, or part of it? Contains similar miospore assemblage (Playford, 1982) and ostracod fauna (Jones, 1985, 1987) to lower Fairfield Group, Canning Basin.|Sandy & silty limestone with minor silty dolomite & sandstone with thin beds of sandy limestone. Richly fossiliferous.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Byro Group|3230|Byro Formation""|3229|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Roadian|||inferred|deposition|Artinskian|||inferred||700|1500|WA|No|44537|45016|||||See also Lexicon. Good to fair predominantly gas-generating source rock intervals are present.|Siltstone, quartz wacke, shale, sandstone, claystone; locally fossiliferous shelf sequence.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Byro Group, lower|80993|Byro Group|3230|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Byro Group|3230|||Kungurian|||biozone||Artinskian|||biozone|||||No|72034||||||Informal subdivision of Byro Group. Unclear how this corresponds to the formal lithostratigraphy.|Fine-grained, bioturbated sandstone overlying interbedded sandstone, siltstone, and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Byro Group, middle|80994|Byro Group|3230|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Byro Group|3230|||Kungurian|||biozone||Kungurian|||biozone|||||No|72034||||||Informal subdivision of Byro Group. Unclear how this corresponds to the formal lithostratigraphy.|Black shale and siltstone overlain by fine-grained sandstone; hummocky and swaley cross-stratified.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Byro Group, upper|80995|Byro Group|3230|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Byro Group|3230|||Kungurian|||biozone||Kungurian|||biozone|||||No|72034||||||Informal subdivision of Byro Group. Unclear how this corresponds to the formal lithostratigraphy.|Intercalated siltstone, shale, and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Bywash Formation|41597|||||Yes|Formation, beds|Formal|Other new published name|Described|Capricorn Group|3558|||Statherian||||deposition|Orosirian|1804||||400|550|WA|No|60301||||||Age: c. 1804Ma. Geological Province: Blair Basin|Thin- to very thick-bedded ferruginous lithic quartz-sandstone and dolomitic sandstone; minor siltstone and dolomitic siltstone, dolostone, conglomerate, and felsic volcanic rock.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cable Beach Sand|21408|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||3.2|WA|Yes|64449|64449|Semeniuk, V.|30-JAN-95|Hocking, R.|29-JUL-08|Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 1090 +/- 160 yrs BP and 2100 +/- 180 yrs BP. PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|Light-coloured, laminated, bedded, to low-angle cross-bedded, medium to fine to coarse sand and shelly sand and some shell gravel. Locally, the Formation is cemented to form beachrock which occurs as a sloping rock pavement.|sediment|||N||17-JAN-23
Cadda Formation|3266|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Bathonian|||inferred, biostratigraphic correlation|deposition|Bajocian|||inferred, biostratigraphic correlation|||300|WA|No|43924|36293|||||See also Lexicon.|Grey shale, siltstone and sandstone; scattered shelly carbonate lenses.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cadda Sequence|79241|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Middle Jurassic|||||Lower Jurassic||||||||No|70097||||||Houtman Sub-basin. See also Cadda Formation.|||||N||17-JAN-23
Cadgerina Dyke|3276|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|42840|||||||||||Y||17-JAN-23
Cadjebut Formation|21411|Pillara Limestone|25744|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Givetian||||deposition|Givetian||||||60|WA|No|63938||Hocking R.|19-OCT-94|||SE51-12, Noonkanbah. Canning Basin.|Vuggy unfossiliferous dolomite, interbedded siltstone, evaporites and breccia. Includes relict stromatolites and corals.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Cagacaroon Syenogranite|79005|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rothsay Suite|79002|Neoarchean||||magmatic crystallisation|Neoarchean|2747|3|isotopic|||||No|||Ivanic, T. (GSWA)|13-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Cagacaroon Hills, Mellenbye 1:100k sheet area. 28deg38'S 116deg25'E. Type area: Cagacaroon Hills. Intrusive into probably lower Polelle Group supracrustal rocks. Used in GSWA Interpreted Basemant geology 2020.|Metasyenogranite to metagranodiorite.|metamorphosed intermediate igneous rock|metamorphosed acid igneous rock||Y||17-JAN-23
Caines Monzogranite|79742|Caines Well Granite|3301|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Maitland River Supersuite|68668|Mesoarchean||||magmatic crystallisation|Mesoarchean|2990|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70775||||||Underlies a 50 km2 area between Balla Balla and Peawah Hill, north of the Sholl Shear Zone. Occupies about 500 km2 S of the SSZ and was dated at 2990 +/-5 Ma (GSWA 142950, Nelson, 2000). The rock is a foliated, K-feldspar porphyritic biotite (-hornblende) monzogranite with local xenoliths of granitic gneiss [Hickman (2016) GSWA Report 160, p54].|Foliated, K-feldspar porphyritic biotite (+/-hornblende) monzogranite with local xenoliths of granitic gneiss.|acid intrusive rock|||Y||17-JAN-23
Cajou Monzogranite|33443|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Orosirian||||intrusion|Orosirian|1961|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|23486||Tyler I.|09-NOV-98|||Gascoyne region.|Equigranular and porphyritic, medium-grained biotite monzogranite.|intermediate intrusive rock|||Y||17-JAN-23
Cajuput Dolerite Member|79993|Cajuput dyke|29950|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Black Range Dolerite|1809|||Neoarchean|2772|2|inferred, geochemical correlation||Neoarchean|||inferred|||||No|||Wingate, M. (GSWA)|17-JUL-17|||Balfour Downs area. See also Hickman (1983) GSWA Bull127 p131-132. Trends north-northeast and has a maximum width of 1000 m, 2 km south of Daylight Rock Hole. Intrudes Mosquito Creek Formation, Kurrana Batholith. Unconformably overlain by Fortescue Group. See also GSWA ENS: WINGATE, MTD (partial report), Cajuput Dolerite Member (A-_bj-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 03 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dyke, gabbroic.|basic intrusive rock|||Y||17-JAN-23
Calgra Member|79373|Meteorite Bore Member|27276|||Yes|Member, phase|Formal|Resvd name published|Defined|Kungarra Formation|26271|||Rhyacian|2208||inferred, intrusive relationship|deposition|Siderian|2340|22|inferred, underlying unit|maximum depositional age|43|59.7|WA|Yes|72712||Martin, D. (GSWA)|03-MAR-16|||Map sheet area: 2252 Hardey 1:100k. A glacigenic diamictite unit approximately 500m above the top of the Meteorite Bore Member within the Kungarra Formation, Turee Creek Group, just below the Beasley River Quartzite unconformity in a section that includes the type section of the Meteorite Bore Member (MBM) on the northern limb of the Hardey Syncline. Published in GSWA report 203.|Glacigenic diamictite with striated and faceted dropstones consisting of carbonate, calc-silicate rock, sandstone, chert, and feldspar and/or quartz-phyric rhyolite.|sedimentary rock|||N||17-JAN-23
Calingiri Monzogranite|83580|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||Thundelarra Supersuite|78988|Mesoarchean|||||Mesoarchean||||||||No|||Ivanic, T. (GSWA)|15-SEP-22||||Monzogranite|acid intrusive rock|||Y||17-JAN-23
Callawa Formation|25827|Callawa beds|3343|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Lower Cretaceous|121||inferred|deposition|Upper Jurassic|151||inferred||52|100|WA|No|44480|45153|||||Defined 1959, redefined 1961, 1981. Also supersedes Callawa Boulder beds. See also Lexicon.|Cross-bedded very fine to coarse-grained sandstone, granule conglomerate and minor siltstone; plant and trace fossils.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Callina Supersuite|68674|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Paleoarchean|3450|||intrusion|Paleoarchean|3490|||||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||To be used on the North Shaw mapsheet; nearest town is Marble Bar. Rocks extensively migmatised and deformed; cut by swarms of leucogranite veins. East Pilbara Terrane. Occurs as minor banded granitic gneiss within the Cleland Supersuite.|Monzogranite, granodiorite, quartz diorite, granite, leucogranite, quartz-feldspar porphyry, rhyolite dykes, diorite, leucogranodiorite, felsic orthogneiss, migmatite, amphibolite, pegmatite|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Callytharra Formation|26448|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wooramel Group|25651|||Artinskian||||deposition|Sakmarian|||||60|265|WA|No|44537|45016|||||See also Lexicon. First described by Maitland (1901). Some 2003 GSWA publications show this unit as part of the Lyons Group, but the GSWA 2008 1:500k Geology does not. Type section: Wooramel River, south end of Carrandibby Range, 25d30m30sS, 115d30m00sE.|Fossiliferous, calcareous siltstone to calcisiltite; interbedded, hard, fossiliferous calcarenite.|fine grained siliciclastic rock|carbonate sedimentary rock||N||23-MAR-23
Calooli Monzogranite|3360|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42697|||||||Monzogranite; minor granodiorite and tonalite; metamorphosed|acid intrusive rock|||Y||10-APR-23
Calwynyardah lamproite|3364|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Calyie Formation|26449|Calyie Sandstone|3365|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collier Group|34907|||Stenian|1070||inferred, intrusive relationship|deposition|Ectasian|1211||inferred, isotopic correlation||190|1800|WA|No|37214|24183|||||Previously called the Calyie Sandstone, this unit has been reduced in area, see refID 23156 Williams (1995). Supersedes Mount Vernon Sandstone. Collier Basin.|Recrystallised fine to coarse sandstone, in places glauconitic, with lesser interbedded siltstone, granule to pebble conglomerate, shale, mudstone, dolostone, pebbly sandstone, minor chert and dolostone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Calypso Formation|23457|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Callovian||||deposition|Callovian|164|||||||No|42615||Hocking R.M.|18-JAN-93|||Fully described in GSWA Record 1992/7, 93/27545.|Monotonous sequence of silty shales deposited in low-energy, marine setting with restricted circulation.|fine grained siliciclastic rock|||N||17-JAN-23
Calytrix Formation|31466|||||Yes|Formation, beds|Formal|Resvd name published|Described|Grant Group|7696|||Sakmarian|||biozone|deposition|Sakmarian|||biozone|||120|WA|No|43823||Redfern R., Apak N., Backhouse J.|27-MAY-97|||Barbwire Terrace area, Canning Basin.|Siltstone, claystone, fine-grained sandstone, thin basal limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Calyx Corner beds|72569|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Virgin Hills Formation|19137|||Famennian|||||Frasnian||||||||No|62735||||||Informally named horizon within the Virgin Hills Formation in the McWhae Ridge area.|||||N||17-JAN-23
Camberathunun Formation|23459|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||deposition|Archean||||||||No|42533||K.P.Watkins, A.H.Hickman, R.Davy|05-DEC-85||||Sheared and weathered felsic volcanic rocks; intensely deformed and altered, banded quartz-oligoclase-hornblende-chlorite rocks with fragmental textures; andesitic in composition, probably pyroclastic in origin.|acid volcanic rock|||N||17-JAN-23
Cambrian - Ordovician sedimentary rocks 80952|80952|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Lower Ordovician|||inferred||Cambrian Series 2|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone, siltstone, limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cambrian - Ordovician sedimentary siliciclastic units 80996|80996|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Ordovician|||inferred||Cambrian|||inferred|||||No|72034||||||Amadeus Basin (phase 2).|Siltstone and mudstone, sandstone, conglomerate, minor dolomite, shallow marine to fluvial.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cambrian mafic intrusives 76520|76520|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Early Cambrian|510|||intrusion|Early Cambrian|545|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset.|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|||Y||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
Camel Bore Granodiorite|80122|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|||inferred, geological correlation||Neoarchean|||inferred, geological correlation|||||No|71212||||||Unclear if this is intended as a formal name or not. Probably equivalent to the Lawlers Tonalite.|Strongly foliated and/or lineated grey, plagioclase-phyric tonalite to granodiorite.|acid intrusive rock|||Y||17-JAN-23
Camel Hills Metamorphics|33276|||||Yes|Group, Suite|Formal|Resvd name published|Described|Gascoyne Complex|7044|||Orosirian|1985||inferred, intrusive relationship||Orosirian|2025|||||||No|22904||Tyler I.|09-NOV-98|||Gascoyne region. Age: c. 1985 Ma from age of veins intruding Quartpot Pelite.|Garnet-sillimanite-bearing pelitic and psammitic schists; quartzite;metamorphosed banded iron-formation, amphibolite.|metasedimentary rock|metamorphosed basic igneous rock|foreland|N||17-JAN-23
Camel Suite|79466|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Ectasian|1296|4|||Ectasian|1310|||||||No|71169||Maidment, D. (GSWA)|20-JUN-16|||Named after Camel Rock? Map Sheets: 3452 Connaughton, 3551Cronin. Nearest Town = Parnngurr.  K-feldspar, quartz, plagioclase  /- biotite leucogranite and monzogranite. Undeformed to strongly foliated and mylonitic. Intrudes Paleo- to Mesoproterozoic rocks of the Tabletop Terrane in the Rudall Province. Dated in two localities at c. 1310 Ma (Nelson, 1996) and 1296  /- 4 Ma (Maidment, in prep.).Tobepublished = Will be used in an informal sense (i.e. Camel suite) in a GSWA report documenting the results of dating carried out at GA. Report is in final editing stage, and might be released within a couple of months (August, 2016?).|K-feldspar, quartz, plagioclase  /- biotite leucogranite and monzogranite. Undeformed to strongly foliated and mylonitic.|acid intrusive rock|||Y||18-AUG-23
Campbell Sandstone|26453|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Coomberdale Subgroup|4593|||Proterozoic||||deposition|Proterozoic||||||||No|36872|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Campbell Well Granodiorite|72707|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Emu Pool Supersuite|68766|Paleoarchean|3310|3||intrusion|Paleoarchean|3310|3||||||No|64621||Hickman, A. (GSWA)|23-NOV-06|||For use on map sheet 2855; nearest town Marble Bar. Dated: 3310+/-3Ma. Intrudes Homeward Bound Granite.|Biotite granodiorite, medium- to coarse-grained, foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Campion Dolerite|38794|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23926|||||||Dolerite|basic intrusive rock|||Y||17-JAN-23
Cane River supersequence|75800|Cane River-Pingandy Supersequence|34388|||Yes|Supergroup|Informal|Sequence strat published|Briefly described||||||||||||||||||No|24607||||||Northwestern Ashburton Formation overlying June Hill Volcanics. Formerly considered coeval with Pingandy supersequence but now believed to be younger.|||||N||17-JAN-23
Canegrass Granite|79346|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Neoarchean|2600|||intrusion|Mesoarchean|3010|||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Locality Canegrass Swamp in Bardoc 1:100k map sheet area.  To be published = GSWA Digital product 2016.|Granite; typically poorly exposed and deeply weathered.|acid intrusive rock|||Y||20-AUG-23
Canning Basin - sedimentary rocks 81452|81452|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous|||inferred||Ordovician|||inferred|||||No|||||||Subsurface unit interpreted by Tony Meixner for the basement geology of the Exploring for the Future area, EGGS database. Also surface/subsurface unit interpreted by Songfa Liu for the Paleozoic solid geology of Australia. See also other 'Canning Basin..' unnamed units.|Sedimentary rocks.|sedimentary rock|||N||17-JAN-23
Canning Basin - sedimentary rocks 82854|82854|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|||||||Subsurface Palaeozoic Canning Basin unit interpreted in the AusAEM airborne electromagnetic survey for the basement geology of the Exploring for the Future area, EGGS database.Probably matches RefID 73116, (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, unit 'Paleozoic siliciclastic units, Canning Basin' map symbol PZ-s-CA.|Sedimentary rocks. Probably sandstone and siltstone.|sedimentary rock|||N||17-JAN-23
Canning Basin - sedimentary rocks 82856|82856|sedimentary rocks 74435|74435|||Yes|Formation, beds|Unnamed|Variation of published name|Unpublished|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|||||||Subsurface Palaeozoic Canning Basin unit interpreted in the AusAEM airborne electromagnetic survey for the basement geology of the Exploring for the Future area, EGGS database. Probably matches RefID 73116, (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, unit 'Mesozoic siliciclastic units, eastern Canning Basin' map symbol MZ-s-CA.|Sedimentary rocks. Probably sandstone, siltstone, claystone, and conglomerate.|sedimentary rock|||N||17-JAN-23
Canning Basin Limestone|3470|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Tournaisian|354|||deposition|Upper Devonian|369|||||||No|42141||||||Age: 354-369 Ma.||carbonate sedimentary rock|||N||17-JAN-23
Canning Gap Shale Member|21433|||||Yes|Member, phase|Informal|Resvd name published|Mentioned|Frere Formation|6902|||||||deposition|||||||||No|64772||Bunting, J.A.|28-JUL-78|||||siliciclastic sedimentary rock|||N||17-JAN-23
Cap Shale|3482|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32189|||||||Shale|siliciclastic sedimentary rock|||N||17-JAN-23
Capalcarra Sandstone|25830|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Billeranga Subgroup|25785|||Neoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|36872|36293||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Cape Boileau Calcarenite Member|74631|||||Yes|Member, phase|Formal|Resvd name published|Defined|Cable Beach Sand|21408|||Holocene||||deposition|Holocene||||||2|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Originally reserved as 'Cape Boileau'.|Cemented beachrock composed of laminated, bedded, to low-angle cross-bedded, medium to fine to coarse calcarenite and shelly calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Cape Burney Sandstone Member|77197|||||Yes|Member, phase|Formal|Variation of reserved name|Briefly described|Tamala Limestone|17719|||Pleistocene||||deposition|Pleistocene||||||||No|61811||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Cape Gourdon Formation|74624|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||1.5|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|In general, a bedded and laminated to cross-laminated interlayered red sand varying to orange quartz and quartz-and-carbonate sand (depending on carbonate sand content), and locally gravelly sand, and small limestone lenses composed of calcarenite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cape Hay Formation|74050|Cape Hay Member|3494|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hyland Bay Subgroup|77685|||Wuchiapingian||||deposition|Wordian|||||||WA|No|13242|13242|||||Of Mory (1988) - replaced Cape Hay Member (Hyland Bay Formation). Now of the Hyland Bay Subgroup (Kinmore Group).|Thick basal shale overlain by thinly bedded sandstone, siltstone and shale, locally grading into more massive sandstone; unconformably overlain by a thin interval of marine shale, then at least two regressive sandstone-dominated cycles.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Cape Leeuwin anorthosite|38678|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|23788||||||Mentioned|||||Y||17-JAN-23
Cape Londonderry Formation|3509|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Troughton Group|18608|||Norian||||deposition|Anisian||||||||No|41532||A.J.Mory|17-JUL-87||||Sandstone; minor siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Cape Naturaliste gneiss|3512|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|37468|||||||||||N||17-JAN-23
Cape Range Group|3521|||||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Miocene|||inferred||Oligocene|||inferred|||1000|WA|No|44959||||||See also Lexicon.  Age: 32 - ~6Ma (1995 reference). Ages updated to 44-7.2 Ma  from GA Timescales Project data Feb2009, but more recent references give age as Oligocene - Miocene.|Sandstone, limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Capricorn Group|3558|Capricorn Formation|3557|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Statherian|1790|||deposition|Orosirian|1804|7|isotopic, U/Pb-Pb/Pb ion probe|||800|WA|No|24544||||||Age: 1804 +/- 7 Ma from Koonong Member tuff.|Ferruginous lithic and dolomitic quartz sandstone, ferruginous siltstone and mudstone, conglomerate, dolostone, and felsic volcanic rock|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||10-APR-23
Capricorn Orogen - metamorphosed mafic intrusive rocks 83740|83740|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Paleoproterozoic|1983||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Capricorn Orogen metamorphosed mafic intrusive unit P_-mod-CPO.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Metadolerite; massive to schistose|metamorphosed basic igneous rock|||Y||30-JAN-23
Carawine Dolomite|29281|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Hamersley Group|8005|||Neoarchean|2548|26|isotopic, Pb/Pb isochron age|diagenesis|Neoarchean|2630|6|isotopic, U/Pb-Pb/Pb ion probe|eruption||500||No|45923||||||See also Lexicon. Within the Mount Bruce Supergroup, Oakover River area. May be lateral equivalent to Wittenoom Dolomite (now Wittenoom Formation) or may be older.|Massive to well-bedded, recrystallised dolomite and stromatolitic dolomite; minor chert. Contains a spherule-bearing megabreccia: asteroid impact ejecta.|carbonate sedimentary rock|||N||26-JUN-23
Carbana Monzogranite|41170|Carbana Pool Adamellite|24211|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Corunna Downs Granitoid Complex|34394|Emu Pool Supersuite|68766|Paleoarchean|3311|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3317|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|50381||||||Redefined unit now includes granitic rocks forming most of northern two-thirds of Corunna Downs Granitoid Complex.|Monzogranite, leucogranite,syenogranite, granodiorite, metagranite, granitic orthoschist; local mafic xenoliths; minor pegmatitic granitoid as dykes and small intrusions in amphibolite.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Carbla Oolite Member|3580|Carbla Oolite|3582|||Yes|Member, phase|Formal|Unknown or process pending|Described|Dampier Limestone|5168|||Pleistocene|||inferred|deposition|Pleistocene|||inferred|||||No|40342|||||||||||N||17-JAN-23
Carboniferous sedimentary rocks 76534|76534|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Serpukhovian|314|||deposition|Tournaisian|354|||||||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
Cardabia Calcarenite|3589|Cardabia Group|26460|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Lutetian||||deposition|Selandian|||||||WA|No|40617||||||See also Cardabia Group, the former units of which are now members of Cardabia Calcarenite.  Age: 61.5-49.5Ma. See also Cardabia Formation.|Calcarenite, commonly glauconitic and fossiliferous, calcilutite, greensand; shallow marine.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Cardarie Sandstone Member|3594|||||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Noondine Chert|14218|||||||deposition|||||||||No|40347|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Cardibar Metamorphics|36002|||||Yes|Formation, beds|Reserved|Other new published name|Reserved||||||||||||||||||No|||Sandi Occhipinti - Curtin University|23-MAY-01|||Named after Cardibar Bore. Name for metamorphic sedimentary rocks on Edmund 1:100K Map.|Metamorphic sedimentary rocks.|metasedimentary rock|||N||17-JAN-23
Cardinal Formation|70159|Pincunah Hill Formation|32216|||Yes|Formation, beds|Formal|Resvd name published|Defined|Soanesville Group|70124|||Mesoarchean||||deposition|Mesoarchean|3200||inferred, underlying unit|||||No|63441|63441|Van Kranendonk, M. (GSWA)|27-MAR-06|Hocking, R.|03-MAY-06|Previously the shale component of the Pincunah Hill Formation, now upgraded to formation status as basal unit of Soanesville Gp (Van Kranendonk/GSWA Mar06). Named for Cardinal Cu-Zn prospect on nearby NORTH SHAW. Of Pilbara Supergroup. Age: prob.c.3200Ma.|Black shale with minor siltstone; local banded iron-formation, chert, sandstone, and conglomerate; metamorphosed.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||11-APR-23
Cardo Group|83904|||||Yes|Group, Suite|Reserved|Reserved|Reserved||||||||||||||||||No|||Martin, D. (GSWA)|23-MAY-23|||Named for the Cardo Outcamp. On the Wyloo Mapsheet near the town of Onslow. To be published in GSWA Record and Explanatory Notes System (ENS).
This is a lithological unit that broadly equates to the informal Cane River Supersequence. Five formation-level subdivisions are also recognised, but proposed names are pending Traditional Owner approval prior to reservation|||||N||26-MAY-23
Cardunia Rocks Monzogranite|75852|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|2638|26|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2638|26|isotopic, U/Pb-Pb/Pb ion probe|||||No|64775|||||||Fractionated hornblende bearing, leucocratic body with fluorite and cassiterite.|intermediate intrusive rock|||Y||17-JAN-23
Cardup Group|3601|Cardup Shale|3602|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Neoproterozoic|600|||deposition|Mesoproterozoic|||||||WA|No|45965|36293|||||Supersedes Cardup Shale etc. Age: 750 Ma?|Predominantly white to black shale with bands of conglomerate, quartz sandstone, and sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||23-MAR-23
Carlaminda Komatiite Member|78995|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Yalgoo Formation|78991|||Neoarchean|2793||inferred|eruption|Neoarchean|2800||inferred|||||No|70226||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Carlaminda Hsd, Yalgoo 1:100k sheet area. 28deg17'S, 116deg43'E. Type area adjacent to Carlaminda Hsd. Probably time-equivalent to the Lordy Basalt Member of the Meekatharra Formation in the northern Murchison Domain, but subtle differences in lava types and abundances warrants a separate formation.|Thin flows of platy olivine spinifex-textured komatiite interlayered with thicker pyroxene spinifex-textured basalt; minor interlayered sedimentary and volcaniclastic rocks; metamorphosed to serpentinite.|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
Carlton Group|3629|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Lower Ordovician||||deposition|Middle Cambrian||||||1500||No|44159||||||Do not confuse with Carlton nomenclature of NSW.|Sandstone, siltstone, shale, and stromatolitic dolomite|siliciclastic sedimentary rock|carbonate sedimentary rock||N||23-FEB-23
Carnac Formation|40564|Carnac Member|24825|||Yes|Formation, beds|Formal|Variation of published name|Described|Parmelia Group|40563|||Berriasian||||deposition|Upper Jurassic||||||||No|50108||||||In the Perth Basin.|Includes sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Carnarvon Basin - sedimentary rocks 83722|83722|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Famennian|||inferred, biostratigraphic correlation||Middle Devonian|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Devonian sedimentary rocks, Southern Carnarvon Basin ' GSWA map symbol D-xs-k-CV. Also surface/subsurface unit interpreted by Songfa Liu for the Paleozoic solid geology of Australia.|Sandstone, limestone, conglomerate.|sedimentary rock|||N||19-JAN-23
Carnarvon Basin - sedimentary rocks 83723|83723|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Pennsylvanian|||inferred||Mississippian|||inferred, biostratigraphic correlation|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Carboniferous sedimentary rocks, Southern Carnarvon Basin ' GSWA map symbol C-kr-CV. Also surface/subsurface unit interpreted by Songfa Liu for the Paleozoic solid geology of Australia.|Limestone, dolomite, sandstone, siltstone; lesser conglomerate.|sedimentary rock|||N||19-JAN-23
Carnegie Formation|3647|||||Yes|Formation, beds|Formal|Other new published name|Defined|Pertaoorrta Group|15091|||Ediacaran||||deposition|Ediacaran||||||||No|48842|44439||||||Sandstone, siltstone, shale, conglomerate, diamictite, dolomite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Carnilya Hill ultramafics|3650|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|39102|||||||||||N||17-JAN-23
Carolyn Formation|24214|||||Yes|Formation, beds|Informal|Resvd name published|Defined|Grant Group|7696|||Sakmarian|||biozone|deposition|Sakmarian|||biozone||63|415|WA|Yes|42613|42613|T.Yeates, R.Towner, R.Crowe|24-MAY-76|WA SNSC|31-AUG-77|Superseded Binda Beds. Definition by Towner R.R. and Crowe R.W.A. See also misspelt Caroline Formation. Original type section in outcrop in Carolyn Valley. Only differentiated in the Gregory Sub-basin. Difficult to identify in the subsurface. Proposed  to be reduced to informal status by Backhouse and Mory (2020) GSWA Report 207.|Conglomeratic sandstone, sandstone, siltstone, laminated calcareous siltstone, claystone, mudstone with calcareous concretions and faceted and striated dropstones. Wood fragments, trace fossils and bioturbations, and palynomorphs.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Carpet Snake Syenogranite|3661|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|||||||WA|No|42904|43478|||||Melita area.|Massive muscovite--biotite syenogranite; common pegmatitic segregations.|acid intrusive rock|||Y||11-APR-23
Carr Boyd Group|3663|Carr Boyd Range Group|3665|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Ectasian||||deposition|Ectasian|1200|||||||No|31393||||||Carr Boyd Ranges, East Kimberley? Different from Carr Boyd Rocks Complex/Carr Boyd Complex.|Sandstone, ferruginous sandstone, siltstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Carr Boyd Rocks Complex|3666|Carr Boyd Complex|3662|||Yes|Group, Suite|Formal|Variation of published name|Fully described||||||||||||||||||No|32694||||||Gindalbie, Kurnalpi region. Probably Archean.|Largely composed of pyroxenite; includes layered ultra mafic to mafic sequences, cross-cut by bronzitites.|ultramafic intrusive rock|basic intrusive rock||N||17-JAN-23
Carrandibby Formation|27365|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Lyons Group|28702|||Sakmarian||||deposition|Sakmarian||||||72||No|44040|45016||||||Micaceous claystone, siltstone, shale and sandstone. Marine fossils. Local dropstones.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Carranya Formation|3677|Carranya beds|25835|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Middle Ordovician|470||inferred, biostratigraphic correlation|deposition|Lower Ordovician|485.4||inferred, biostratigraphic correlation|||||No|41751|||||||Shallow marine fossiliferous fine to medium grained well sorted and laminated to thinly bedded quartz sandstone, siltstone, intraformational claystone conglomerate and pebble to boulder conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Carrarang Sand|75844|||||Yes|Formation, beds|Informal|Resvd name published|Described|||||Holocene|||inferred|deposition|Upper Pleistocene|||inferred||||WA|No|69558||Playford, P., Hocking, R. (GSWA)|02-FEB-11|||Holocene sand unit in Shark Bay area. To be published: GSWA Report or Bulletin, in next couple of years. May be published earlier in AJES or similar paper, but full definition will be in GSWA publication.|Pale-red and yellow to white, medium-grained, weakly lithified, calcareous sands made up of fragments of molluscs, foraminifers and quartz sand. This sand variably forms Seif, parabolic, barchan and undulating dunes.|regolith|||N||17-JAN-23
Carrawine Supersequence|34374|Brockman Supersequence|33840|||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Archean|2543||||Archean|2590|||||||No|22682||||||2590-2543 Ma. Previously part of the Brockman Supersequence|||||N||17-JAN-23
Carribuddy Group|3686|Carribuddy Formation|3685|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Llandovery||||deposition|Darriwilian||||||1591|WA|No|40837|40837||||||Red bed mudstone and dolostone facies dominate and thick halite deposits developed in sub-basins; largely devoid of diagnostic fossils.|fine grained siliciclastic rock|carbonate sedimentary rock||N||24-MAY-23
Carrington Suite|41811|Carrington Granitic Suite|31354|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Statherian|1767|||intrusion|Statherian|1779|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|50369||||||Probably intended to replace Carrington Granitic Suite. See also Carrington Granite Suite. Informally subdivided in to 7 unnamed granite bodies in Lake Mackay area. Shown as equivalent age to Rapide Granite, older than 1770-1760Ma Yambah Event, younger than Reynolds Range Group, Nicker beds. Aileron Province, Arunta orogen, North Australian Craton. NTGS has a longer description than GSWA.|Weakly porphyritic to equigranular biotite metagranite. Granite gneiss interlayered with metagabbro.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y|S-type|17-JAN-23
Carson Volcanics|3696|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Kimberley Group|9572|||Statherian|1790|4|isotopic, U/Pb|minimum depositional age|Orosirian|1835||inferred||270|1140||No|44325||||||In Durack Ranges. Kimberley Basin, North Australian Craton.|Green to black quartz basalt, in places amygdaloidal and with basaltic volcaniclastic rocks, interbedded massive feldspathic or argillaceous quartz sandstone, laminated siltstone and mudstone.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Carson Volcanics - sediments 80980|80980|Carson Volcanics|3696|||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|Carson Volcanics|3696|||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||Published in GSWA Kimberley geological information series 2018 update, as unnamed member of Carson Volcanics. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Feldspathic sandstone, quartz sandstone, and siltstone; localized stromatolitic chert.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Cartier Formation|3707|Cartier Beds|3705|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Woodbine Group|20481|||Aquitanian|20.4|||deposition|Oligocene|30|||||||No|41437|||||||Comprises claystones, marls and calcisiltites.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Carynginia Formation|3723|Carynginia Shale""|3725|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Roadian|||inferred|deposition|Artinskian|||inferred|||349|WA|No|45001|36293|||||See also Carynginia Formation Limestone and Carynginia Limestone and Lexicon.|Micaceous siltstone and quartz sandstone, minor granule to pebble conglomerate, limestone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||23-MAR-23
Carynginia Sequence|79242|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Mentioned||||||||||||||||||No|70097||||||See also Carynginia Formation.|||||N||17-JAN-23
Cascade Bay Monzogranite|23475|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1860|||intrusion|Paleoproterozoic|1860|||||||No|42815||Griffin T.J., Tyler I.M.|24-AUG-89|||In Lamboo Province because included in Paperbark Supersuite.|Foliated coarsely porphyritic biotite muscovite monzogranite with coarse K-feldspar phenocrysts and recrystallised biotite and quartz defining a strong tectonic foliation|acid intrusive rock|||Y||17-JAN-23
Cashin Member|3734|Cashin Calcarenite|26466|||Yes|Member, phase|Formal|Variation of published name|Described|Cardabia Calcarenite|3589|||Early Eocene||||deposition|Early Eocene|56|||||||No|40617||||||Age: ~56Ma. See also Cashin Calcarenite Member - the lithological component does not form part of the formal current name (email per R. Hocking, May 2008).|||||N||17-JAN-23
Cashmans Metasediment|33874|Cashman Metasediment|21465|||Yes|Formation, beds|Formal|Resvd name published|Mentioned||||||||||||||||||No|22534|||||||||||N||17-JAN-23
Cassandra Member|31877|Cassandra|21466|||Yes|Member, phase|Formal|Resvd name published|Described|Yandagooge Formation|24134|||Statherian||||deposition|Statherian||||||230||No|43848||Bagas, L.|24-MAR-93|||Rudall 1:250 000 sheet area.|Iron-rich graphitic, pelitic schist, BIF and chert.|metasedimentary siliciclastic rock|metasedimentary non-carbonate chemical or biochemical rock||N||17-JAN-23
Cassidy Group|27737|||||Yes|Group, Suite|Formal|Other new published name|Described|Bentley Supergroup|1491|||Mesoproterozoic|1026||inferred|eruption|Mesoproterozoic|1065|||||3000||No|30385||||||Bentley Basin (GSWA 2011). Min age inferred from age of Bentley Supergroup. Max age from  Wururu Rhyolite.|Massive to vesicular and amygdaloidal basalt and porphyritic rhyolite; locally common volcanolithic conglomerate and sandstone.|igneous volcanic rock|siliciclastic sedimentary rock||N||11-APR-23
Castlereagh Hill Porphyry|3764|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Orosirian||||magmatic crystallisation|Orosirian|1855|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|44317||||||Part of the Whitewater Volcanics reassigned to Castlereagh Hill Porphyry. Porphyritic rock unit of Castlereagh Hill redefined as Greenvale Porphyry. In the Western Zone of the Lamboo Complex.|Quartz-feldspar porphyry, hornblende-biotite granodiorite.|igneous volcanic rock|acid intrusive rock||Y||17-JAN-23
Cattamarra Coal Measures|3806|Cattamarra Member|3809|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Bajocian|||inferred, biostratigraphic correlation|deposition|Sinemurian|||inferred, biostratigraphic correlation|||1500|WA|No|44237||||||Formerly a member of Cockleshell Gully Formation (name now abandoned) as the Cattamarra Member. Includes coal seams up to 11m thick.|Carbonaceous siltstone, shale, claystone, coal, fine- to coarse-grained sandstone interbeds.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Cattamarra Sequence|79243|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Middle Jurassic|||||Lower Jurassic||||||||No|70097||||||Houtman Sub-basin. See also Cattamarra Coal Measures.|Interbedded sandstone, siltstones and coals.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Cattle Well Formation|31024|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Croydon Group|4964|||Mesoarchean|2955||inferred|deposition|Mesoarchean|2988|5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|900|2600||No|44229||Williams I., Hickman A.|10-MAR-97|||Muccan 1:100 000 sheet 2956. Previously included in informal Gossan Hill Group. Reassigned to the new Croydon Group (from the De Grey Group in Pilbara Supergroup, now upgraded to De Grey Supergroup) (GSWA 03/06).|Sandstone, siltstone, shale, and wacke; minor felsic volcaniclastic rocks; local chert replacing stromatolitic carbonate rocks; metamorphosed|acid volcanic rock|siliciclastic sedimentary rock||N||11-APR-23
Cattlin Creek pegmatite|3816|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|34723|||||||||||Y||17-JAN-23
Cave Hill Member|79372|||||Yes|Member, phase|Formal|Resvd name published|Defined|Boolgeeda Iron Formation|2227|||Siderian|2340|22|inferred, overlying unit|deposition|Siderian|2443|3|inferred, underlying unit||1.9|25|WA|Yes|72712||Martin, D. (GSWA)|03-MAR-16|||Map Sheet area: SF 50-10 Wyloo 1:250k. A glacigenic diamictite conformably overlying the Boolgeeda Iron Formation, and conformably overlain by 10-15m of BIF.  Published in GSWA report 203.|In type area diamictite, sandstone, conglomerate, shale, and banded iron-formation (BIF).|sedimentary rock|||N||17-JAN-23
Cave Rocks Dolerite|81582|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Neoarchean|||||Neoarchean|2680|||||||No|72057||||||||basic intrusive rock|||Y||17-JAN-23
Cave Rocks East Dolerite|81583|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Cave Rocks Dolerite|81582|||Neoarchean|||||Neoarchean|||||132|250||No|72057|||||||Aphyric basalt, grading upward through dolerite and gabbro into pyroxenite, and up into dolerite, minor gabbro and quartz gabbro.|basic intrusive rock|basic volcanic rock||Y||17-JAN-23
Cawse Monzogranite|28107|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|43214|||||||Coarse-grained biotite monzogranite; equigranular to porphyritic, locally seriate; moderate to weak foliation; metamorphosed.|acid intrusive rock|||Y||11-APR-23
Cecil Sandstone|3850|Cecil Sandstone Member|26470|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||||No|40993||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Celebration Dolerite Member|80601|Celebration Dyke|3857|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS: Wingate, MTD (partial report), Celebration Dolerite Member (P_-_wt-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Mainly dolerite and gabbro; includes cumulate and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Cement Granitic Complex|31106|||||Yes|Group, Suite|Informal|Other new published name|Mentioned||||||||||||||||||No|43478||||||Unclear if this is intended as 'structurally controlled clusters of granitic intrusions that may be of significantly differing age (as per Pilbara granitic complexes), or a stratigrpahic unit.|||||Y||17-JAN-23
Cemetery Conglomerate|35673|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|23142|||||||||||N||17-JAN-23
Cemetery Road Sand|73500|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Cenozoic alluvium 76543|76543|||||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 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
Centenary Bore Basalt|75827|Centenary Bore basalt|69192|||Yes|Formation, beds|Informal|Variation of published name|Described|||||||||eruption|||||||||No|66192||||||Was formal name intended? Associated with ultramafic horizons, Mount Keith, Cliffs and Monument Ultramafic units. In one of  the most highly nickel sulfide-endowed komatiite belts in world.|Massive and pillowed high-Mg and high-Fe basalt.|basic igneous rock|||N||17-JAN-23
Centenary Shale|69187|||||Yes|Formation, beds|Formal|Other new published name|Described|Black Flag Group|28372|||Archean||||deposition|Archean||||||10||No|60627|||||||Carbonaceous shale|siliciclastic sedimentary rock|||N||17-JAN-23
Central Desert Dolerite Suite|79600|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Neoproterozoic|976|3||intrusion|Neoproterozoic|975|||||||No|70762|||||||Dolerite dyke.|basic intrusive rock|||Y||17-JAN-23
Chabbledoo Formation|80948|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Miocene|||||Cenozoic|||||||WA|No|71808|||||||Moderately stratified interlayered conglomerate, pebbly conglomerate and coarse sandstone, and massive to pebbly siltstone. Bed thickness varies between 0.1 to 2.5 m.Conglomerate near the base contains some megaclasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Challenger Formation|23478|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Late Eocene|37.5|||deposition|Late Eocene|40|||||70|WA|No|41751|41751|A.E.Cockbain|03-SEP-85||||Brown calcareous shale, siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Challis Formation|3892|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sahul Group|16515|||Norian|213|||deposition|Carnian|232||||||WA|No|41532|41532|A.J.Mory|26-AUG-87|||Reservoir for Challis field.|Massive limestone, interbedded shale, sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Champion Bay Group|25840|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Bajocian||||deposition|Aalenian|||||||WA|No|48615|36293|||||See also Lexicon.|Ferruginous sandstone, fossiliferous limestone, grey to black shale|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Chaneys Granite|27740|||||Yes|Formation, beds|Formal|Other new published name|Described|Hooper Complex|8469|Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|44366||||||Age: c.1865-1850Ma.|Coarse and even grained or commonly foliated to weakly porphyritic biotite granite, monzogranite and granodiorite with small mafic xenoliths; locally sheared|acid intrusive rock|||Y||17-JAN-23
Chapman Group|25841|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Toarcian||||deposition|Toarcian|||||||WA|No|44307|36293|||||See also Lexicon. SH50-5.|Poorly sorted sandstone to conglomerate; ?fluviatile.|siliciclastic sedimentary rock|||N||17-JAN-23
Chararoo Granite|31956|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Chararoo Supersuite|31955|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Included in -Pg on Edmund 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Chararoo Supersuite|31955|||||Yes|Supergroup|Informal|STRATLEX Entry|Briefly described|||||Statherian|||||Orosirian|1800|||||||No|50425||Wyborn L.A.I.|25-NOV-97|||Gascoyne Province|||||Y||17-JAN-23
Charlotte Sandstone|31473|||||Yes|Formation, beds|Formal|Resvd name published|Described|Parmelia Group|40563|||Berriasian||||deposition|Berriasian||||||589||No|50108||Backhouse, J.|28-JUL-97||||Predominantly sandstone with a few thin shale beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Charlotte Supersequence|80796|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|||||Valanginian|||biozone||Berriasian|||biozone||0|3625|WA|Yes|71958||||||Published in: GA record: An Integrated Study of the CO2 Storage Potential in the Offshore Vlaming Sub-Basin (Borissova et al., 2014) [actually GA Record 2015/09]. Mostly coincides with lithostratigraphic unit Charlotte Sandstone of Parmelia Group,  hence has been assigned a similar name.|Predominantly a very fine to very coarse quartzose sandstone with minor interbedded mudstone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||01-JUN-23
Charteris Basalt|3926|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kelly Group|69691|||Paleoarchean|3315||inferred, underlying unit|eruption|Paleoarchean|3325||inferred, underlying unit|||1000|WA|Yes|31853|39426|Hickman A.H.||WA SNSC|31-MAR-76|Previously of the Kelly Subgroup (Warrawoona Group). Now of the Kelly Group (Pilbara Supergroup).  Geological Province: Pilbara Craton. Considered to overlie the Corboy Formation in 1990, but Corboy Formation subsequently placed in overlying Gorge Creek Group.|Basalt and basaltic komatiite; minor dolerite sills, chert and felsic volcanic rocks; metamorphosed.|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Chatarie Well Granite|34925|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2711|||||||No|22902||||||Jackson 1:100 000 sheet area (2737).|Coarse-grained monzogranite; metamorphosed.|acid intrusive rock|||Y||11-APR-23
Cheearra Monzogranite|33200|||||Yes|Formation, beds|Formal|Resvd name published|Described|Yule Granitoid Complex|33198|Sisters Supersuite|68741|Mesoarchean|2933|||intrusion|Mesoarchean|2952|||||||No|50370||Smithies R.H.|27-OCT-98|||Or Gneiss. A major component of the Yule Granitoid Complex. Age: c. 3065Ma.|Equigranular to porphyritic biotite monzogranite and granodiorite, weakly to strongly foliated, local banding; metamorphosed|acid intrusive rock|||Y||17-JAN-23
Cheela Springs Basalt|3941|Cheela Springs Basalt Member|3940|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Shingle Creek Group|79382|||Orosirian|2031|6|inferred, overlying unit|eruption|Rhyacian|2209|15|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||2700|WA|Yes|35218||Horwitz R.C.|02-FEB-80|Johnstone, M.H.||Maximum deposition age: SHRIMP U-Pb 2209 (+/-) 15 Ma from detrital zircons, subsequently reinterpreted as a provenance age.  Minimum (and likely depositional) age constrained by age of tuff bed in the conformably overlying Wooly Dolomite.The parent unit, Shingle Creek Group, is proposed as the formal name to replace the informal lower Wyloo Group. As such it includes the Beasley River Quartzite, Cheela Springs Basalt, and Wooly Dolomite. Wyloo Group is now reserved for what was informally referred to as the upper Wyloo Group.|Amygdaloidal basalt and minor volcaniclastic rock; immature sandstone, siltstone, and mudstone; intruded by Balgara Dolerite sills|basic volcanic rock|igneous volcanic rock||N||11-APR-23
Cherrabun Member|3950|||||Yes|Member, phase|Formal|Variation of published name|Defined|Hardman Formation|8081|||Wuchiapingian|||biozone|deposition|Wuchiapingian|||biozone|||100|WA|No|33962|33962||||||Consists of sandstone (locally richly fossiliferous), laminated siltstone, and rare limestone beds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cherrybooka Conglomerate|3951|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Bresnahan Group|27346|||Calymmian||||deposition|Statherian||||||||No|36883||||||In 2012 (GSWA Record 2011/25) age range shown as 1800-1465 Ma.|Pebble- to boulder-conglomerate, pebbly sandstone, sandstone, siltstone and mudstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Chessman Granodiorite|39510|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3314|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3318||isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03||||Metamorphosed biotite granodiorite and tonailte; medium- to coarse-grained; strongly foliated to gneissic.|acid intrusive rock|||Y||17-JAN-23
Chester Formation|36846|Chester Group|21489|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||deposition|Archean|2958|4|isotopic, U/Pb||750|||No|23754|||||||Pelite with minor psammite and psephite; minor metamorphosed felsic volcanic and volcaniclastic rocks, and banded iron-formation|siliciclastic sedimentary rock|acid volcanic rock||N||11-APR-23
Cheyne Springs Formation|23483|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||50|300|WA|No|42013|24183|R.G.Chuck|17-MAY-84|||Probably equivalent to the Warrada Dolomite Member of Daniels (1970).  In the Edmund Basin. Intruded by a dolerite sill in Maroonah and Mangaroon 1:100k sheet areas.|Dolomite, dololutite, dolomite breccia, dolarenite, dolorudite, mudstone, siltstone, and minor sandstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Chiall Formation|33196|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Miningarra Group|79473|||Paleoproterozoic|1850||isotopic, U/Pb-Pb/Pb ion probe|deposition|Paleoproterozoic|1860||inferred|||2000|WA|Yes|23581|50188|Hocking R.|08-DEC-98|||Previously considered to be within the Earaheedy Group. Supersedes the combined 'Wandiwarra Formation' and 'Princess Ranges Quartzite'.|Sandstone and siltstone, minor conglomerate; glauconitic in lower part|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||11-APR-23
Chillerina Granodiorite|35238|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Mesoarchean|2930|||intrusion|Mesoarchean|2945|||||||No|24327||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets. Occurs as locally abundant inclusions within the Petermarer Monzogranite (RefID 68283).|Hornblende biotite granodiorite to K-feldspar porphyritic monzogranite; massive to moderately foliated; weakly metamorphosed|acid intrusive rock|||Y||11-APR-23
Chimingadgi Trondhjemite|41375|Chimingadgi Suite|4001|||Yes|Formation, beds|Formal|Variation of published name|Described|||Emu Pool Supersuite|68766|Paleoarchean||||intrusion|Paleoarchean||||||||No|44229||||||Intrudes Apex and Euro Basalts and the Mullungunya Granodiorite. Part of the Mount Edgar Granitoid Complex.|Biotite trondhjemite; medium grained, massive, seriate textured; weakly metamorphosed|acid intrusive rock|||Y||11-APR-23
Chimney Rock Oolite|4002|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pleistocene|||||Cenozoic|||||||WA|No|44998|45153|||||See also Lexicon.|Consists of clacerted, well cemented oolitic limestone.|carbonate sedimentary rock|||N||17-JAN-23
Chinaman Pool Chert Member|38600|||||Yes|Member, phase|Formal|Variation of published name|Described|Duffer Formation|5770|||Archean||||deposition|Archean||||||||No|23783||||||Also incorrectly referred to as Chinaman Creek Chert  - prefer Chinaman Pool Chert (Van Kranendonk Mar06). Within the Coongan Subgroup, Warrawoona Group, Pilbara Supergroup.|Layered sedimentary chert.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Chinty Formation|23484|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kennedy Group|9434|||Wuchiapingian|255||inferred|deposition|Capitanian|262||inferred|deposition|||WA|No|40617|40617|R.M.Hocking, H.T.Moors|23-MAY-83|||Ages, lithology updated from GA Timescales Project Feb 2009. Of Kennedy Group in 1998, 2000.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Chocolate Hill Formation|4033|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||deposition|||||||||No|30766|||||||||||N||17-JAN-23
Chocolate Hill Suite|37147|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Archean|||||Archean|3338|52||||||No|23755|||||||||||Y||17-JAN-23
Choorun Formation|26476|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Tarcunyah Group|31872|||Ediacaran|544|10|isotopic, U/Pb-Pb/Pb ion probe|deposition|Ediacaran|574|62|isotopic, U/Pb-Pb/Pb ion probe||1800|2000||No|33849||||||Formerly considered part of Yeneena Group, Yeneena Basin.|Generally upward-fining sequence of polymictic pebble to cobble conglomerate and quartz pebble conglomerate, pebbly sandstone with detrital muscovite; medium to coarse grained sandstone in places with siliceous nodules, minor siltstone and shale|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Christine Point Clay|24220|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Pleistocene||||deposition|Upper Pleistocene|||||||WA|Yes|36483|36483|Semeniuk, V.|08-DEC-75|WA SNSC||Age: 12,000-7,500yrs B.P. (Carbon-14 dating).|Slate grey, homogeneous to mottled clay; large in situ mangrove stumps, rootlets and plant detritus are abundant; burrow structures locally.|sediment|||N||17-JAN-23
Christmas Creek Member|4046|||||Yes|Member, phase|Formal|Resvd name published|Defined|Poole Sandstone|27680|||Artinskian|||inferred, overlying unit|deposition|Artinskian|||inferred, underlying unit|||25|WA|Yes|30338|30338|Crowe R.W.A, and Towner R.|22-MAY-75|WA SNSC|31-MAR-76|Validity as mappable unit questioned in Mory (2010). Unlikely to be identifiable in subsurface.|Consists of large-scale, cross-bedded, poorly sorted granule conglomerate and fine to coarse-grained sandstone.  Thin to medium-bedded, and in places some graded bedding.  Asymmetrical ripple-marks occur on bedding planes.|siliciclastic sedimentary rock|||N||17-JAN-23
Christopher Formation|26478|Christopher Beds|27367|||Yes|Formation, beds|Formal|Variation of published name|Described|Oscar Range Group|14667|||Cryogenian||||deposition|Cryogenian||||||||No|42710||||||Cryogenian as age for the parent unit Oscar Range Group in the 2006 edition of GSWA's 1:500k Bedrock Geology of WA.|Interbedded boulder to cobble conglomerate, locally cross-bedded grey to white quartz and feldspathic sandstone, local tuffaceous phyllitic siltstone and minor carbonate, intruded by minor thin dolerite sills|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Chuall beds|28454|Chuall Beds|4051|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Paleozoic||||deposition|Paleozoic||||||||No|45155||||||Age is Early Palaeozoic. Appears in GSWA Memoir 3 (1990) which has NOT yet been indexed. PP08/06. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 359, 360. Possibly Devonian.|Shallow to emergent mainly fine to medium grained clayey and micaceous quartose and lithic sandstone with some low-angle cross beds and minor grit and pebble-rich beds|siliciclastic sedimentary rock|||N||17-JAN-23
Chulaar Group|23486|||||Yes|Group, Suite|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|41066||Baxter, J.L.|10-FEB-81|||This may be a group of mineral deposits rather than a stratigraphic unit.|||||N||23-MAR-23
Chunderloo Monzogranite|74835|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Jungar Suite|74834|Neoarchean|2640|||intrusion|Neoarchean|2665|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Biotite metamonzogranite; commonly with abundant K-feldspar phenocrysts/porphyroclasts; well foliated to mylonitic; may include amphibolite lenses|metamorphosed acid igneous rock|||Y||11-APR-23
Church Hill Sand|74626|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||4|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.Originally reserved as 'Church Hill'. This unit in Canning Region, but may be some question whether it should be included in Canning Basin Province.|In general, a red quartz sand, mainly structureless, but locally with lamination and cross-lamination.|sediment|||N||17-JAN-23
Churla Granite|31764|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2635|||||||No|43835|||||||Coarse, even grained, granulite-facies leucocratic monzogranite with sheets of granite|acid intrusive rock|||Y||17-JAN-23
Cistern Formation|4067|Cistern formation|28455|||Yes|Formation, beds|Formal|Other new published name|Redefined|Bookingarra Group|29942|||Mesoarchean|2943|7|isotopic, U/Pb-Pb/Pb ion probe|deposition|Mesoarchean|2964|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||800|WA|Yes|34829||||||Originally of Miller and Gair (1975). Formerly considered part of Whim Creek Group (its upper parts were included in the Constantine Formation); then became part of the Bookingarra Group in the Mallina Basin. Reclassified later into Croydon Group (email - GSWA Mar/06) - GSWA Record 2006/15. Hosts notable massive sulfide mineralisation. Redefined as a unit within the Bookingarra Group again in 2017.|Coarse to fine felsic volcaniclastic rocks, including conglomerate,  and some thick units of felsic tuff ; metamorphosed.|siliciclastic sedimentary rock|acid volcanic rock||N||02-JUN-23
Clanmeyer Siltstone|28297|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian||||deposition|Famennian||||||1067|WA|No|30110|45153|||||Subsurface unit. See also Clanmeyer Formation.|Siltstone, shale, minor limestone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Clanmyra Pool|39556|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|30-OCT-03|||Canning Basin region, but probably Holocene unit, so may not be part of Canning Basin Geological Province.|||||N||17-JAN-23
Clapp Ridge Formation|78345|Mellinjerie Limestone|11629|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Givetian||||deposition|Givetian||||||||No|68007||Allen, H. (GSWA)|19-AUG-13|||Replacing the informal WMC term Clapp Ridge Shale, exists in petroleum wells of the Barbwire Terrace, Canning Basin.wheretobepublished = A Revised Subsurface Devonian Stratigraphy for the Central and Southern Canning Basin. GSWA Report to be published early 2014.|Dominated by reddish-brown, argillaceous and dolomitic siltstone, with interbeds of silty dolomite and silty claystone.|fine grained siliciclastic rock|||N||17-JAN-23
Clark Sandstone|4103|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Carlton Group|3629|||Furongian||||deposition|Furongian|||||||WA|No|45038||||||See also Lexicon.|Red glauconitic feldspathic quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Clark Well Monzogranite|34585|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2640|8|isotopic, U/Pb|||||No|22841|||||||Seriate, biotite-bearing monzogranite; metamorphosed|acid intrusive rock|||Y||12-APR-23
Claudius Member|77935|||||Yes|Member, phase|Formal|Resvd name published|Described|Scotty Creek Formation|31033|||Neoarchean|2640||inferred|deposition|Neoarchean|2662||inferred|||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Claudius Creek. Map Sheet: SH51-1,  Munjeroo 2941. Dominantly conglomerate  with subordinate sandstone. Locally schistose. Mafic/ultramafic clasts common in conglomerate. The unit is metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Dominantly polymictic conglomerate  with subordinate sandstone. Locally schistose. Mafic/ultramafic clasts common in conglomerate. The unit is metamorphosed.|medium-coarse grained siliciclastic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Cleaverville Formation|4132|||||Yes|Formation, beds|Formal|Other new published name|Defined|Gorge Creek Group|27160|||Mesoarchean|3015||inferred|deposition|Mesoarchean|3022||inferred||300|1500||No|44536|24541|||||Previously of Gorge Creek Group, then independent; now reassigned to Gorge Creek Group (De Grey Supergroup) (GSWA Record 2006/15). Includes former Nimingarra Iron Formation rocks. Intruded by Stone Yard Granophyre. See also incorrectly named Cleaverville Group (attributed to Kiyokawa and Taira (1998) in Precambrian Research v.88, p102-142 - who elected to change the status of the unit and include additional formations not previously assigned to it, without consultation with GSWA and without detailed redefinition (per email from Arthur Hickman to Roger Hocking, Nov. 2007). Gorge Creek Basin, De Grey Superbasin.|Banded iron-formation, ferruginous chert, sandstone, siltstone and shale; minor grey-white chert and felsic volcaniclastic rock; metamorphosed|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||27-APR-23
Cleghorne Formation|80172|||||Yes|Formation, beds|Informal|Other new published name|Described|Pussy Cat Group|15689|||Stenian|1065||inferred, overlying unit||Stenian|1077||inferred, underlying unit|||100||No|71211||||||Informal name. Appears to be named after author Christopher Cleghorne Medlins. This is inappropriate unless no place names were available in the area.|Mudstone, conglomerate, basalt, breccias and quartz-feldspar sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Cleland Supersuite|68665|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Paleoarchean|3225|||intrusion|Paleoarchean|3275|||||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||For use on SPLIT ROCK mapsheet; nearest town Marble Bar.  Named for Cleland Rock; not to be confused with Cleland Formation and Cleland Sandstone of Northern Territory. Strelley is the  type granite. Possible source rocks for Ferdies Member of the Dead Bullock Formation, in the Tanami region.|Monzogranite, granodiorite, and tonalite; local gabbro and dolerite; variably metamorphosed; locally tonalitic orthogneiss;  includes veins of granitic pegmatite or greenstone xenoliths|acid intrusive rock|metamorphosed acid igneous rock||Y||13-APR-23
Clianthus Flat Rhyodacite|78609|||||Yes|Formation, beds|Reserved|Reserved|Described|||||||||eruption|||||||||No|70153||Hall, C. (GSWA)|10-DEC-13|||Lake Lefroy map sheet area. To be published: East Yilgarn 2013-14 update. Digital package Geological Survey of Western Australia.||acid volcanic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Clianthus Formation|31467|||||Yes|Formation, beds|Formal|Resvd name published|Described|Grant Group|7696|||Sakmarian|||biozone|deposition|Sakmarian|||biozone||||WA|No|43823||Redfern R., Apak N., Backhouse J.|27-MAY-97||||Sandstone, minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Cliff Pool Tonalite|68503|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Elizabeth Hill Supersuite|68738|Archean|3068|4||intrusion|Archean|3068|4||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Intrudes Pinnacle Hill Gneiss; intruded by Munni Munni Intrusion.|Weakly foliated to gneissic biotite tonalite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Cliffs Ultramafic|81375|Cliffs Ultramafic Unit|75825|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Neoarchean|||||Neoarchean|2705||inferred|||||No|70326|||||||Spinifex-textured komatiite with comagmatic dacite intrusions.|ultramafic volcanic rock|acid volcanic rock||N||17-JAN-23
Clifton Downs Member|29482|||||Yes|Member, phase|Formal|Resvd name published|Described|Tims Thicket Limestone|73571|||Pleistocene||||deposition|Pleistocene||||||||No|63454||Semeniuk, V.|02-MAR-95|||Perth Basin|White to cream shelly/bioturbated calcarenite, bioturbated forameniferal limestone, laminated x-laminated marine calcarenite, laminated to x-laminated beach calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Cloisters Member|32215|||||Yes|Member, phase|Formal|Resvd name published|Described|Euro Basalt|27151|||Archean||||deposition|Archean||||||2700||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755.|Spinifex-textured, massive and pillowed ultramafic lavas and pillowed high-Mg basalt.|basic volcanic rock|||N||17-JAN-23
Clover Downs beds|41037|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|24196|||||||||||N||17-JAN-23
Clutterbuck Formation|24851|Clutterbuck Beds|4194|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic||||deposition|Neoproterozoic|||||||WA|No|41751|||||||Fine to coarse well sorted cross-bedded feldspathic sandstone with siltstone and conglomerate interbeds|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Coalmine Beach Ferricrete|73501|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07|||||regolith|||N||17-JAN-23
Coates Gabbro|4221|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|35726|||||||Gabbro|basic intrusive rock|||Y||17-JAN-23
Cobb Formation|79343|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Darriwilian|||inferred, biostratigraphic correlation|deposition|Tremadocian|478|7|isotopic, U/Pb|maximum depositional age|20|800|WA|Yes|71268||Haines, P., Allen, H-J. (GSWA)|20-FEB-16|Haines, P.|18-DEC-20|After Lake Cobb, WA. Map Sheet: Cobb 250K Nearest Town: Patjarr Community.  Distribution: Cobb Embayment of Canning Basin, WA. Age: top is middle Ordovician based on fish fossils. Rocks previously included in Paterson Formation. Contacts: unconformably overlies Mesoproterozoic crystalline basement.|Predominantly fine- to coarse-grained red-brown sandstone, with recessive intervals of siltstone. Minor local conglomerate. A thin grey silty dolostone bed at the base of reference section 1.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||18-SEP-23
Coburn Formation|67829|Hamelin Formation|67830|||Yes|Formation, beds|Formal|Other new published name|Described|Dirk Hartog Group|37057|||Pridoli||||deposition|Ludlow||||||335|WA|No|6943||||||This name replaces invalid Hamelin Formation, but  excludes that unit's evaporite part, the Yaringa Formation. Type section in Hamelin Pool-1, 951-1225m. Reference section in Yaringa-1. Shallow marine environment. Conodont fauna not diverse, but give likely early Gorstian to earliest Pridoli age. Divided into lower and upper parts. Max. thickness: 335.5m in Pendock-1A (1856-2191.5m).|Interbedded dolomite and gypsum with minor shale.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Cocanarup pegmatites|73776|||||Yes|Formation, beds|Informal|Variation of reserved name|Briefly described|||||||||intrusion|||||||||No|50542||||||Reserved as Cocanarup (Witt, W.  1994). Informal name (not known if published as a defined/formal name). Hosted by Annabelle Volcanics.|||||N||17-JAN-23
Cock Robin Formation|79565|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2803|3|inferred, intrusive relationship|deposition|Neoarchean||||||||No|71270||Sapkota, J. (GSWA).|17-AUG-16|||Formation Map Sheet = Menzies Nearest Town = Menzies. The Cock Robin Formation is a potentially older (than the Kalgoorlie Group) mafic/ultramafic succession in the western part of the Eastern Goldfields Superterrane of the Yilgarn Craton. It is intruded by the 2803 +/- 3 Ma Twin Hills Monzogranite (date in Dunphy et al., 2003). wheretobepublished = GSWA explanatory notes and interpreted bedrock geology map in 2017.|Fuchsite-quartz-andalusite schist, tremolite-chlorite(-talc) schist, amphibolite and mafic schist; locally garnetiferous, banded and pyritic chert; local banded iron-formation; metamorphosed, silicified slate, basalt; metamorphosed.|foliated metamorphic rock|||N||17-JAN-23
Cockatoo Group|4273|Cockatoo Formation|4271|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Frasnian||||deposition|Frasnian||||||2700||No|40792||||||Formerly Cockatoo "Formation" "Cockatoo Series", "Cockatoo Sandstone".|Quartz sandstone, conglomerate and limestone; minor dolomite and siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cockburn Sandstone|4280|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Bastion Group|1242|||Calymmian||||deposition|Statherian||||||||No|44363|||||||Quartz sandstone, micaceous fine-grained sandstone, shale|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cockeraga Leucogranite|39607|||||Yes|Formation, beds|Formal|Other new published name|Described|||Elizabeth Hill Supersuite|68738|Mesoarchean|3066|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Mesoarchean|3068|22|isotopic, U/Pb-Pb/Pb ion probe|||||No|24534|||||| Age: <3068 +/-22 Ma and < 3066 +/- 4Ma (SHRIMP). In East Pilbara Terrane.|Leucocratic biotite (-hornblende) tonalite and granodiorite and subordinate monzogranite; locally abundant pegmatite and greenstone and granitoid gneiss xenoliths; weakly metamorphosed|acid intrusive rock|||Y||17-JAN-23
Cody Limestone|80522|Cody Formation|32577|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kennedy Group|9434|||Late Permian|||||Late Permian|||||||WA|No|13615||||||In Onslow 1, Abdul's Dam 1, Ruby 1. The Cody Limestone was defined (originally as Cody Formation) in GORTER, J.D., and DAVIES, J.M., 1999, Upper Permian carbonate reservoirs of the North West Shelf and northern Perth Basin, Australia: APPEA Journal, v. 39, no. 1, p. 343¿362 (definition in Appendix 1 on 362). Renamed Cody Limestone in: CROSTELLA, A., IASKY, R. P., BLUNDELL, K. A., YASIN, A. R., and GHORI, K. A. R., 2000, Petroleum geology of the Peedamullah Shelf and Onslow Terrace, Northern Carnarvon Basin, Western Australia: Western Australia Geological Survey, Report 73, p. 17.|Limestone, dense to microcrystalline and locally calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Colalura Sandstone|28210|Colalura sandstone|4312|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Champion Bay Group|25840|||Bajocian||||deposition|Bajocian||||||8.5|WA|No|31706|36293|||||(Playford et al., 1976).|Yellow-brown coarse-grained sandstone, commonly conglomeratic, with claystone, siltstone and shale intercalations.|siliciclastic sedimentary rock|||N||17-JAN-23
Collett Siltstone|4341|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Crowhurst Group|4951|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44397||||||In the Crowhurst Basin.|Purple and green fissile laminated siltstone with minor white and purple silty dolomite interbeds, lenses and nodules; white sandy dolomite and dolomitic sandstone, purple siltstone and dolomitic siltstone, and green pyritic cherty siltstone|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Collie Group|4345|Collie Coal Measures|4343|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Roadian||||deposition|Sakmarian||||||900||No|42711|42711|||||See also Collie Coal Measures.|Sandstone, carbonaceous shale, coal, pebble conglomerate.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||23-MAR-23
Collier Group|34907|Collier Subgroup|23495|||Yes|Group, Suite|Formal|Variation of published name|Defined|Bangemall Supergroup|34951|||Stenian|1070||inferred, intrusive relationship|deposition|Ectasian|1211||isotopic, U/Pb-Pb/Pb ion probe|||6400|WA|No|22905|24183|||||Supersedes Mucalana (Muhling and Brakel, 1985) and Collier (Cooper et al, 1998a) Subgroups. Minimum age constrained by 1070 Ma dolerite intrusions.  Maximum age constrained only by detrital zircons. Collier Basin.|Dominantly siltstone, fine- to very coarse-grained sandstone, pebbly sandstone, dolostone and minor chert and conglomerate. Intruded by thick dolerite and gabbro sills.|fine grained siliciclastic rock|siliciclastic sedimentary rock|passive margin|N||17-JAN-23
Colombo Sandstone|4364|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Neoproterozoic|800|||deposition|Neoproterozoic|830||||||WA|No|44397|45047|||||Age stated to be: ~830 Ma in 1998.|Massive medium grained white and purple quartz sandstone and sandy purple chert-pebble breccia.|siliciclastic sedimentary rock|||N||17-JAN-23
Colonial Chert Member|35659|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Mount McRae Shale|12926|||Paleoproterozoic||||deposition|Archean||||||15||No|23126|||||||Enriched in banded iron-formation.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Colville Sandstone|4380|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Eucla Group|6345|||Middle Miocene|14.5||biozone|deposition|Early Miocene|18.5||biozone|||25|WA|No|65942|32552|||||Name first used in 1969 and dated to Early to Middle Miocene. Age is Balcombian (an Australian Stage).  Partly overlain by and interfingers with Nullarbor Limestone. Age: 18.5-14.5Ma. Yarle Sandstone, Plumridge Formation may be lateral equivalents.|Thin calcareous sandstone, minor siltstone, claystone, calcarenite and granule conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Comet Vale Monzogranite|23498|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||||No|42221||Swager C.|26-APR-89||||Fine- to medium-grained, porphyritic monzogranite. High Ca granite.|acid intrusive rock|||Y||17-JAN-23
Comet Well Conglomerate|81937|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Neoarchean|||inferred, overlying unit||Neoarchean|||inferred|||||No|||Spinks, S. (CSIRO)|12-JUN-20|||Cooya Pooya 1:100k sheet area 2355, Pyramid SF50-07. Named after Comet Well 21.03222deg S, 117.00306deg E. Underlies Mount Roe Basalt in Purdy's Reward deposit area. May be equivalent to Bellary Formation.|||||N||17-JAN-23
Como Sandstone Member|21525|||||Yes|Member, phase|Formal|Resvd name published|Described|Kings Park Formation|9612|||Eocene||||deposition|Paleocene||||||57|WA|No|12759||Davidson W.A.|18-MAY-88|||Onshore Perth Basin unit. Notified by A.Davidson 28-NOV-94.|Predominantly medium-grained, moderately sorted, subangular to subrounded, pale grey to pale greenish-grey, slightly clayey sand.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Comstock Member|35911|Comstock Andesite Member|4406|||Yes|Member, phase|Formal|Variation of published name|Described|Rushall Slate|27300|||Mesoarchean||||deposition|Mesoarchean||||||||No|23348||||||Incorporated into the new Bookingarra Formation (GSWA Mar06).  In the Mallina Basin. Previously considered a member of the Mount Negri Volcanics or the Rushall Slate. Restored to being Member of Rushall Slate in 2017 redefinition of that unit.|Fine-grained sub-volcanic intrusive rock; vesicular metabasalt with rare pyroxene spinifex-texture;|basic intrusive rock|||Y||17-JAN-23
Condenser Dolerite|23500|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Great Boulder Suite|77865|Archean|2680|8||intrusion|Archean|2762|32||||500||No|41588||N.J.Archibald, A Cowden|16-DEC-86|||See also misspelt Condensor Dolerite.|Tholeiitic differentiated sill; pyroxene-bearing dolerite to gabbro; quartz--plagioclase granophyric zones in upper sections; minor aphyric basalt at margins; metamoprhosed|igneous intrusive rock|||Y||17-JAN-23
Condren Sandstone|4428|Condren Sandstone Member|4427|||Yes|Formation, beds|Formal|Variation of published name|Defined|Liveringa Group|25997|||Capitanian|||biozone|deposition|Capitanian|||biozone|||130|WA|No|44998|45153|||||Note: Use of Condren Formation on Mt Ramsay 1:250 000 was a mistake - RH 5-Sep-2008.|Fluvial to paralic or deltaic fossiliferous cross bedded and ripple marked fine to medium quartzose sandstone, with minor siltstone, coal seams and conglomerate. Abundant plant macrofossils.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cone Hill Granite|4431|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Paperbark Supersuite|31788|Paleoproterozoic||||intrusion|Paleoproterozoic|1860|||||||No|30898||||||GSWA Geochron record 1381 (2017) states this unit is part of Western Zone of Lamboo Province.|Foliated coarsely porphyritic biotite muscovite monzogranite with small amphibolite xenoliths and small veins of tourmaline-bearing aplite and pegmatite|acid intrusive rock|||Y||17-JAN-23
Congo Formation|4435|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian|||||||WA|No|45015|45016|||||See also Lexicon. Defn on Tech File G/50-5.|||||N||17-JAN-23
Connaughton Zone - metamorphosed mafic volcanic rocks 83741|83741|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1760||inferred||Paleoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Capricorn Orogen metamorphosed mafic intrusive unit' P_-xmb-md-PTRC. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Amphibolite, metamorphosed banded iron-formation, metachert, metamorphosed carbonate rock, quartzite, pelitic schist, and metamorphosed ultramafic rock|high grade metamorphic rock|||N||30-JAN-23
Connaughton Zone - metamorphosed ultramafic rocks 83742|83742|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1760||inferred||Paleoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Connaughtone Zone metamorphosed ultramafic unit' P_-mu-PTRC. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metamorphosed ultramafic rock; mainly serpentinite|metamorphosed ultramafic rock|||U||30-JAN-23
Connie Sue Formation|82172|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Quentin De Gromard, R. (GSWA)|08-FEB-21|||Named for the Connie Sue Highway. Occurs across the Dimer and Doongin 100k sheets. Nearest town is Balladonia. To be published in: Spaggiari, CV, Smithies, RH, Kirkland, CL, Wingate, MTD, England, RN and Lu, Y 2020, Stratigraphic and co-funded drilling of the Eucla basement ? the Proterozoic geology beneath the Nullarbor Plain: Geological Survey of Western Australia, Report 204, 147p|Interlayered calc-silicate schist and metabasalt; intruded by granite and gabbro.|low-intermediate grade metamorphic rock|igneous intrusive rock||N||17-JAN-23
Connolly Gneiss|78533|||||Yes|Formation, beds|Reserved|Resvd name published|Described|||||Neoarchean|2668|15||magmatic crystallisation|Neoarchean|2801|10|isotopic|magmatic crystallisation||||No|70153||Hall, C. (GSWA)|05-NOV-13|||Yilmia 1:100k sheet area?  Biotite granitic gneiss with a magmatic crystallization age of 2668 +/- 15 Ma. Located 40 Km south of Coolgardie, Eastern Goldfield Superterrane. . To be published = East Yilgarn 2013-14 update, Geological Survey of Western Austrtalia digital product. This unit now includes rocks previously reserved as the Quairnie Rock Gneiss.|Biotite-muscovite granitic gneiss; schistose to medium-grained.|metamorphosed acid igneous rock|||Y||17-JAN-23
Conqueror Porphyry|69185|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|60623|||||||||||Y||17-JAN-23
Considerable creek pillow basalts|38998|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|23870||||||Mentioned.||basic volcanic rock|||N||17-JAN-23
Conspicuous Cliff Sand|74009|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Quaternary||||deposition|Quaternary||||||||No|||Semeniuk, Vic (VCSRG)|05-DEC-07|||For Walpole area.|||||N||17-JAN-23
Constantine Sandstone|4460|Constantine Formation|4459|||Yes|Formation, beds|Formal|Resvd name published|Defined|Croydon Group|4964|||Mesoarchean|2948||inferred|deposition|Mesoarchean|3015||inferred|||5000|WA|Yes|30766|30766|Fitton M.J., Horwitz R.C., Sylvester G.|23-JUN-75|WA SNSC|01-APR-76|Age: >2.9Ga. Within the De Grey Supergroup. Of Whim Creek, Mallina, Lalla Rookh Basins.|Sandstone and wacke, locally arkosic; local conglomerate; includes quartzite; metamorphosed|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-APR-23
Coobarra Formation|25855|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Edmund Group|34906|||Calymmian|1098|42|isotopic, Rb/Sr|eruption|Statherian|1638|14|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|29916|40089|||||Ages from rhyolite. Martin & Thorne (2004) suggest Formerly of the Edmund Subgroup (Bangemall Group) - then reassigned to Tringadee Formation?  And now part of Yilgatherra Formation? But Coobarra Formation still in use in 2011.|Sandstone, conglomerate; minor siltstone, shale, small plugs of rhyolite.|acid volcanic rock|||N||17-JAN-23
Coobina Complex|4465|Coobina Ultramafic|4466|||Yes|Group, Suite|Formal|Variation of published name|Described||||||||||||||||||No|41594|||||||||||N||17-JAN-23
Coodardoo Formation|4473|Coodardoo Sandstone|4474|||Yes|Formation, beds|Formal|Other new published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, intrusive relationship|deposition|Statherian|1620||inferred, lithostratigraphic correlation||150|370|WA|No|44319|24183|||||Youngest population of detrital zircons dated at c.1713 Ma.|Thin to very thick-bedded lithic quartz sandstone, minor siltstone and mudstone|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Coodardoo Formation, Ullawarra Formation, Devil Creek Formation, Discovery Formation|74903|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Edmund Group|34906|||Calymmian||||deposition|Statherian||||||||No|||||||Informal grouping of Edmund Group units.  Equivalent to Depositional Package 4 for Edmund Basin in the GSWA 500K Solid Geology GIS (2008)|Siltstone and mudstone; sandstone, dolostone, dolomitic mudstone, chert, and minor conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Coodardy Pool Formation|75540|||||Yes|Formation, beds|Formal|Resvd name published|Described|Polelle Group|74804|||Neoarchean||||deposition|Neoarchean|2800|||||||No|67116||Van Kranendonk, M. (GSWA)|12-OCT-09|||Quartzite and banded iron formation. A thin unit of quartzite and banded iron formation, to be added to the base of the Polelle Group of the Murchison Supergroup, Murchison Domain, Youanmi Terrane, Yilgarn Craton. To be published: Cue 1:100 000 map sheet explanatory notes|Metamorphosed iron-formation, weakly layered, strongly foliated; medium-grained foliated quartzite; quartzite with interlayered metaperidotite schist; quartzite and metamorphosed iron-formation, well foliated.|metasedimentary siliciclastic rock|metasedimentary non-carbonate chemical or biochemical rock||N||04-SEP-23
Cooee Group|4481|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|41588|||||||||||N||17-JAN-23
Cooglegong Monzogranite|35000|Cooglegong Adamellite|4485|||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Mesoarchean||||intrusion|Mesoarchean|2851|2||||||No|61252||||||Age: 2851+/-2Ma. Geological Province: Pilbara Craton. Formerly of Shaw Granitoid Complex (1998, 2001 - 04). Said to intrude Split Rock Supersuite (2006, refid 63441).|Monzogranite, coarse grained and commonly porphyritic; locally fine grained or pegmatitic; local igneous layering; metamorphosed|acid intrusive rock|||Y||17-APR-23
Cookes Creek Monzogranite|73507|Cookes Creek Granite|24866|||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Mesoarchean||||intrusion|Mesoarchean|2850||inferred, intrusive relationship|||||No|64580|||||||Biotite monzogranite; seriate to feldspar porphyritic; fine to medium grained; weakly metamorphosed|acid intrusive rock|||Y||17-APR-23
Coolajacka Member|35350|Cooya Pooya Dolerite|4662|||Yes|Member, phase|Formal|Resvd name published|Described|Hardey Formation|8075|||Archean||||deposition|Archean|2760||||||WA|No|24352||Hickman A.|20-MAR-00|||Pinderi Hills 1:100 000 sheet area. Age: Late Archaean approx 2760 Ma. Part of Fortescue Group.|Fine-grained ultramafic lava; abundant quartz xenocrysts.|ultramafic volcanic rock|||N||17-JAN-23
Coolan Well Member|36641|||||Yes|Member, phase|Reserved|Reserved|Reserved|Paradise Plain Formation|36638|||||||deposition|||||||||No|||Smithies R. H.|25-OCT-01|||De Grey (2757) area, Pilbara region. Port Hedland 1:250 000 sheet area.|||||N||17-JAN-23
Coolbro Sandstone|26490|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Throssell Range Group|70719|||Tonian|830||inferred, intrusive relationship|deposition|Tonian|910||||2000|4000||No|33849||||||910 Ma is age of the youngest detrital zircon (Bagas and Nelson 2007), 830 Ma is the age of intermediate to mafic rocks that intrude the lower part of the (Yeneena) Basin (Maidment, unpublished).|Thickly bedded massive to well- bedded sandstone, minor siltstone, shale and pelitic schist, carbonate, and basal polymictic conglomerate|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Coolgardie Subgroup|77855|||||Yes|Subgroup|Formal|Variation of published name|Briefly described|Kalgoorlie Group|26647|||Neoarchean|2690||||Neoarchean|2726|||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Archean mafic and ultramafic rocks with minor sedimentary units of the Kalgoorlie Terrane,Eastern Goldfields Superter, from ~2726-2690Ma. To be published = Geological Survey of Western Australia East Yilgarn update 2013-14, digital product.|Basalts to komatiites.|basic volcanic rock|ultramafic volcanic rock||N||20-AUG-23
Coolkilya Sandstone|4554|Coolkilya Greywacke|4552|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kennedy Group|9434|||Cisuralian||||deposition|Cisuralian||||||||No|34277|||||||Quartz wacke and siltstone, variably calcareous, locally fossiliferous.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Cooloongup Sand|4558|||||Yes|Formation, beds|Formal|Other new published name|Defined|Kwinana Group|25141|||Pleistocene|.031|||deposition|Pleistocene|.049|.01|||||WA|No|32575|32575|||||Defined by Passmore (1970).|Decimetres- to metres-thick beds of yellow-red-brown loose quartz sand: quartz grains with very thin ferruginous coating.|sedimentary rock|||N||17-JAN-23
Coolyena Group|4565|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Maastrichtian|||inferred, biostratigraphic correlation|deposition|Albian|||inferred, biostratigraphic correlation|||100|WA|No|30188|36293|||||(Cockbain and Playford, 1973). Age is Pre-Cainozoic. Geological Province: Perth Basin.|Chalk, greensand, glauconitic sandstone, siltstone, marl; characteristically glauconitic.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Coolyena Group, Lower|80097|Coolyena Group|4565|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Cretaceous|||||Cretaceous||||||||No|70826|||||||||||N||17-JAN-23
Coolyena Group, Upper|80103|Coolyena Group|4565|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Cretaceous|||||Cretaceous||||||||No|70826|||||||||||N||17-JAN-23
Coolyena Megasequence|80808|||||Yes|Supergroup|Informal|Sequence strat published|Briefly described|||||Maastrichtian|||inferred, biostratigraphic correlation||Aptian|||inferred, biostratigraphic correlation|||||No|71958|||||||||||N||17-JAN-23
Coolyia Creek Granodiorite|38602|Coolyia Creek Tonalite|36959|||Yes|Formation, beds|Formal|Variation of published name|Described|||North Shaw Suite|34106|Paleoarchean|3467|||intrusion|Paleoarchean|3469|||||||No|23783||||||Intrudes base of Warrawoona Group. Part of the Callina Supersuite.|Metagranodiorite to metatonalite; clotty hornblende texture; strongly foliated|metamorphosed acid igneous rock|||Y||17-APR-23
Coomarie Sandstone|4586|||||Yes|Formation, beds|Formal|Other new published name|Defined|Birrindudu Group|1735|||Statherian|1640||inferred, overlying unit|minimum depositional age|Statherian|1768||inferred, underlying unit|maximum depositional age|400|2500|NT|No|29804|45140|||||Latest age control (summarised, Crispe et al 2007) suggest Birrindudu Basin ranges from 1735-1640 Ma.|Sublithic arenite and minor quartz arenite, mainly medium-grained, thin-bedded to flaggy, showing cross-bedding and ripple marks; siltstone and shale. Shale pellets common in the sublithic arenite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Coomb Bore Monzogranite|37866|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2686|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2691|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|50012||Riganti, A.|10-JAN-03|||Age: c.2691Ma.|Foliated monzogranite; minor syenogranite and granodiorite.|acid intrusive rock|||Y||17-JAN-23
Coomberarie Formation|4590|||||Yes|Formation, beds|Formal|Other new published name|Defined|Badgeradda Group|863|||Neoproterozoic||||deposition|Neoproterozoic||||||1150|WA|No|48823|45015|||||See also Lexicon. Defn on Tech File G/50-14. Max. thickness: 4985ft. in type section.|Grey to brown and reddish-white, thin bedded and fine-grained sandstone, with cross-stratification in places.|siliciclastic sedimentary rock|||N||17-JAN-23
Coomberdale Subgroup|4593|Coomberdale Sub-group|4592|||Yes|Subgroup|Formal|Variation of published name|Defined|Moora Group|12271|||Neoproterozoic|800|||deposition|Neoproterozoic|||||||WA|No|40349|40347||||||Sandstone, siltstone, dolostone, stromatolitic dolostone and silicified dolostone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Coomberianyah Member|36639|||||Yes|Member, phase|Reserved|Reserved|Reserved|Paradise Plain Formation|36638|||||||deposition|||||||||No|||Smithies R. H.|25-OCT-01|||De Grey (2757) area, Pilbara region. Port Hedland 1:250 000 sheet area.|||||N||17-JAN-23
Coonabildie Formation|4597|||||Yes|Formation, beds|Formal|Other new published name|Defined|Salvation Group|35575|||Mesoproterozoic||||deposition|Mesoproterozoic|1330|||||250|WA|No|35596|40089|||||Now included in the Salvation Group (which has replaced parts of Sunbeam Group) - previously included in the Sunbeam Group. Formerly of Kahrban Subgroup tog. with Marlooyanoo Fm. However the two formations were indistinguishable from each other, hence Marlooyanoo Fm has been abandoned.|Fine- to medium-grained lithic sandstone, micaceous siltstone and shale, commonly rippled. Sandstone, trough cross-bedded, locally pebbly; subordinate siltstone. Varicoloured chert, pale to dark coloured; basal unit.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Coondamar Formation|68055|||||Yes|Formation, beds|Formal|Resvd name published|Described|Nullagine Group|69694|||Mesoarchean|3035|6|inferred, intrusive relationship|alteration|Paleoarchean|3200||inferred|deposition||1000||No|61253||Farrell, T. - GSWA|01-MAR-05|||To be used on map sheet 3054 - nearest town is Nullagine. In the Pilbara Craton. Within the De Grey Supergroup. Base of the Mosquito Creek Basin.|Chlorite-actinolite schist, quartz-muscovite schist, amphibolite, andalusite-muscovite schist, phyllite, lithic sandstone containing subangular basaltic clasts, siltstone, chert, gabbro, komatiitic basalt.|metasedimentary rock|metamorphosed basic igneous rock||N||17-JAN-23
Coondina Monzogranite|38011|Coondina Adamellite|4606|||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2929|||intrusion|Mesoarchean|2936|||||||No|24110||||||See also Coondina Adamellite (Reserved, 1975)|Biotite monzogranite; leucocratic; medium grained to weakly porphyritic|acid intrusive rock|||Y||18-APR-23
Coondiner Member|28471|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|Weeli Wolli Formation|19674|||Siderian||||deposition|Siderian||||||||No|33544|||||||||||N||17-JAN-23
Coondoon Formation|4607|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Manganese Group|11171|||Mesoproterozoic|1050||isotopic, K/Ar|intrusion|Mesoproterozoic|||||||WA|No|43056|41669|||||Parts of this unit at Bee Hill reassigned  to Stag Arrow Formation in refID 71042, Jones (2017).|Conglomerate, sandstone, wacke, dolostone, shale|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Coondra Formation|25677|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sunbeam Group|33753|||Cryogenian||||deposition|Tonian||||||1000|WA|No|43056|41768|I.R.Williams|05-AUG-86|||Previously part of Calyie Sandstone.|Coarse-grained sandstone, pebble to boulder conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Coongan Subgroup|69683|||||Yes|Subgroup|Formal|Variation of published name|Described|Warrawoona Group|19508|||Paleoarchean|3460|||deposition|Paleoarchean|3474|||||8200||No|61253||||||Probably unrelated to the Coongan Volcanics? Within the Pilbara Supergroup. Comprises Mount Ada Basalt and Duffer Formation, both formerly of Talga Talga Subgroup.|Felsic volcanic rocks, felsic schist, basalt, dacite, andesite, sandstone, conglomerate, amphibolite, komatiite, peridotite, chert, psammitic and pelitic schist, mafic schist, wacke, shale, iron formation, ultramafic schist.|sedimentary rock|acid volcanic rock||N||17-JAN-23
Coonieena Basalt|33215|Cooneeina Formation|31025|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Mesoarchean||||eruption|Mesoarchean||||||||No|23415||Williams I., Hickman A.|10-MAR-97|||Precambrian. Muccan 1:100 000 sheet 2956. Pilbara. Spelling corrected DEC98.  Equivalent to the Honeyeater Basalt.  Formerly of the Gorge Creek Group, Croydon Group. In Mar2006 downgraded and reassigned as Coonieena Basalt Member of the new Bookingarra Formation, but in 2014 new geochron suggests unit is at least 25 M years too old to be related to Bookingarra Formation, so reinstated as ungrouped formation [Hickman Apr 2014]|Massive and pillowed basalt; local silicified basaltic andesite and hyaloclastic breccia; metamorphosed|basic volcanic rock|||N||18-APR-23
Cooninia Inlier granitic rocks 83743|83743|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2895||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Cooninia Inlier granitic unit' A-g-PCN. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granite to granodiorite; metamorphosed and variably foliated|acid intrusive rock|||Y||30-JAN-23
Coonterunah Subgroup|69684|Coonterunah Group|32209|||Yes|Subgroup|Formal|Variation of published name|Described|Warrawoona Group|19508|||Paleoarchean|3498||inferred|eruption|Paleoarchean|3515||inferred|||||No|61253||||||Within the Pilbara Supergroup. Historically, has been informally refered to as the "Coonterunah succession" by Buick et al (1995). Middle unit of Group has been radiometrically dated.|Basalt, high-Mg basalt, banded iron formation, mafic schist, chert, andesite, andesite to basalt, rhyolite, silicified and sericitised basalt, dolerite, amphibolite, silicified evaporite, sandstone, tuffaceous sandstone; metamorphosed|basic volcanic rock|sedimentary rock||N||17-JAN-23
Coor-de-wandy Formation|38575|Coor-de-wandy|33676|||Yes|Formation, beds|Formal|Resvd name published|Described|Pooranoo Metamorphics|37649|||Statherian|1800|||deposition|Statherian||||||||No|23781||||||Reserved as Coor-de-wandy (Occhipinti, S.A. 1999).|Siliciclastic sedimentary rocks; metamorphosed|metasedimentary siliciclastic rock||foreland|N||17-JAN-23
Coorong Creek Adamellite|26299|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|||||||WA|Yes|39444|39444|S.L.Lipple, A.H.Hickman|17-APR-74|WA SNSC|06-JAN-75|Definition card 24-APR-1974. In press according to DL1980.|medium to coarse, even-grained biotite adamellite.  rare phenocrysts.  It is poorly to moderately foliated by alignment of feldspar, biotite, quartz and some biotite wisps and schlieren.|acid intrusive rock|||Y||17-JAN-23
Cootharra Monzogranite|75915|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Walganna Suite|74845|Neoarchean||||intrusion|Neoarchean||||||||No|69628||Van Kranendonk, M. (GSWA)|07-APR-11|||Belonging to the Walganna Suite of the Bald Rock Supersuite. It is named after Cootharra Bore at AMG Zone 50J, 657693E, 6963391N, on the Nowthanna 1:100 K sheet area.|Medium- to coarse-grained monzogranite; undeformed; locally muscovite-rich.|acid intrusive rock|||Y||17-JAN-23
Cooya Pooya Dolerite Member|80572|Cooya Pooya Dolerite|4662|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Kylena Formation|34040|||Neoarchean|2735||inferred||Neoarchean|2749||inferred|||||No|||Hickman, A.H. (GSWA)|03-JUL-18|||Fine- to medium-grained dolerite sill; locally forms dykes within Hardey Formation. Briefly described in GSWA online ENS: Hickman, AH (partial report), Cooya Pooya Dolerite Member (A-FOkc-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Fine- to medium-grained dolerite sill; locally forms dykes within Hardey Formation|basic intrusive rock|||Y||18-APR-23
Copalcarra Sandstone|4666|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37460||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Copernicus pyroxenite|81574|Copernicus Intrusion|81573|||Yes|Formation, beds|Informal|Variation of published name|Briefly described||||||||||Orosirian|1823|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71873||||||Probably only intended as sam[ple description, but this name could be formalised.|Pyroxenite-peridotite body.|ultramafic intrusive rock|||Y||17-JAN-23
Copper Chert|37086|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|23723|||||||||||N||17-JAN-23
Copper Hills Porphyry|4684|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Emu Pool Supersuite|68766|Mesoarchean|3321|4||eruption|Mesoarchean|3321|4||||||No|45923|||||||||||U||17-JAN-23
Copperfield Monzogranite|40472|Copperfield|21559|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||||No|50076||||||Reserved as Copperfield by Rattenbury (1992) for Ballard Sheet.  In the Yilgarn Craton. Margins of this unit hosts historic gold workings.|Biotite monzogranite with prominent mineral lineation.|metamorphosed acid igneous rock|||Y||17-JAN-23
Copperfield Monzogranite - high-Ca|74537|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Copperfield Monzogranite|40472|||Archean||||intrusion|Archean||||||||No||||||||Biotite metamonzogranite with prominent mineral lineation; Hi-Ca granite|acid intrusive rock|||Y||17-JAN-23
Copperfield Monzogranite - low-Ca|74538|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Copperfield Monzogranite|40472|||Archean||||intrusion|Archean||||||||No||||||||Biotite metamonzogranite with prominent mineral lineation; low-Ca granite|acid intrusive rock|||Y||17-JAN-23
Copperhead Igneous Complex|78620|Copperhead Complex|34293|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Paleoproterozoic||||magmatic crystallisation|Paleoproterozoic|1821|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|69099||||||Data from OZCHRON1. Comment for Copperhead carbonatite: 'The ages of the zircon suites are complex, with 1821 Ma being the interpreted magmatic age from 28 analyses. A lower Th/U group is older (1840-1880 Ma) and late Archaean xenocryst cores are 2419-2736 Ma.'. Interp magmatic age 1821+/-4 Ma U/Pb SHRIMP.|Albitite, albite-carbonate fenite, carbonate veins, and carbonatite breccia.|exotic composition igneous rock|||Y||27-APR-23
Coppermine Shale|33873|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||deposition|Archean||||||||No|22534||Witt, W.K.|14-DEC-06|||||siliciclastic sedimentary rock|||N||17-JAN-23
Coppin Gap Granodiorite|36951|Coppin Gap Suite|4692|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Emu Pool Supersuite|68766|Paleoarchean|3314|3||intrusion|Paleoarchean|3314|13|isotopic, U/Pb-Pb/Pb ion probe|||||No|44229||||||Intrudes Mount Ada and Apex Basalts. In the Mount Edgar Granitoid Complex area.|Biotite granodiorite and tonalite; medium-grained, massive to seriate, weakly foliated; local mafic xenoliths, metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Coramup Gneiss|30536|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Ectasian|1224|9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Statherian|1688|12|isotopic, U/Pb-Pb/Pb ion probe|||||No|43203||||||Part of the Biranup Zone (Kepa Kurl Booya Province, Albany-Fraser Orogen [2009]. Min age is of high-grade metamorphic event.  Interpreted as an exotic terrane dominated by granitic rocks with protoliths 1690-1660 Ma and reworked gneissic equivalents; a 10-20km wide belt of intensely deformed heterogeneous gneisses.|Granitic gneiss; heterogeneous; mainly derived from Recherche Granite; deformed with orthogneiss (circa 1700-1600 Ma) and paragneiss; including quartzite (?circa 1550 Ma)|foliated metamorphic rock|||Y||17-JAN-23
Corboy Formation|28476|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Soanesville Group|70124|||Mesoarchean|3190|||deposition|Paleoarchean|3270|||||2000|WA|Yes|31853|31853|Hickman A.H. and Lipple S.L.|04-MAR-74|WA SNSC|06-JAN-75|To be included in the Soanesville Subgroup of the Gorge Creek Group, North Shaw 1:100k sheet area (2755). Age: 3270-3200Ma.Reassigned to Soanesville Group when subgroup was upgraded (GSWA 03/06). Soanesville Basin. Basalts and BIFs previously considered part of this unit have been reassigned to the Honeyeater Basalt.|Consists of sandstone with a lensoidal basal polymictic conglomerate and is interbedded with banded and ferruginous chert, black carbonaceous shale, and siltstone; turbiditic.|non-carbonate chemical or biochemical sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Corby Limestone Member|4702|Corby Limestone|4703|||Yes|Member, phase|Formal|Unknown or process pending|Described|Panton Formation|14839|||Middle Cambrian||||deposition|Middle Cambrian||||||4.6||No|41840|||||||Shale, marl, marly limestone and limestone. Fossiliferous. Intertidal to shoreface and shallow subtidal.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cordalia Formation|4706|Cordalia Sandstone|24877|||Yes|Formation, beds|Formal|Variation of published name|Described|Wooramel Group|25651|||Artinskian||||deposition|Artinskian||||||140||No|42392||||||Contains good hydrocarbon source rocks. Type section: Lyndon River, southeast of Winning Homestead, 23d20m50sS, 114d39m30sE.|Silty, fine to very fine sandstone, siltstone. Predominantly carbonaceous siltstone in subsurface.|siliciclastic sedimentary rock|||N||17-JAN-23
Corkwood Tonalite|30307|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tickalara Metamorphics|18130|Dougalls Suite|24927|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43853||Tyler I.|06-JUN-96|||Turkey Creek, Bow 1:100 000 map sheets, East Kimberley.  Of Dougalls Suite.|Foliated and metamorphosed biotite (-hornblende) tonalite and granodiorite; locally garnet-bearing|acid intrusive rock|||Y||17-JAN-23
Cornelia Sandstone|4734|Cornelia Formation|26497|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bangemall Supergroup|34951|||Mesoproterozoic||||deposition|Mesoproterozoic|1305|14|inferred, geological correlation|maximum depositional age||2000||No|35596|50188|||||Name returned to original form, Cornelia Sandstone, after being superseded by Cornelia Formation; now redefined as Cornelia Sandstone (albeit as more restricted unit) in HOCKING, R. M., JONES, J. A., PIRAJNO, F., and GREY, K., 2000, Revised lithostratigraphy for Proterozoic rocks in the Earheedy Basin and nearby areas: Western Australia Geological Survey, Record 2000/16.  This unit is a possible equivalent of the Edmund Group.|Sandstone, siltstone, mudstone, glauconitic sandstone, conglomerate.Pebbly, dirty sandstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Corner Well Gabbro Member|80574|Corner Well Gabbro|75887|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Windimurra Igneous Complex|74875|||Mesoarchean|2813||inferred, intrusive relationship||Mesoarchean|2813|3|inferred, intrusive relationship|||||No|||Ivanic, T. (GSWA)|03-JUL-18|||See GSWA ENS: Ivanic, TJ 2018, Corner Well Gabbro Member (A-ANwc-xol-apl): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Modally layered olivine gabbro grading into olivine gabbronorite interlayered with lherzolite, dunite, pyroxenite, and minor anorthosite; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Corrara Granite|31892|Corrara Monzogranite|21562|||Yes|Formation, beds|Formal|Resvd name published|Described|||Syenite Camp Suite|31897|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|43854||||||East Kimberley region. Kimberley Province. Of the Syenite Camp Suite (Sally Downs Supersuite).|Medium-grained, even textured biotite(-hornblende) tonalite.|acid intrusive rock|||Y||17-JAN-23
Corridor Gabbro|80592|Corridor gabbro|31133|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|70851||||||c. 1855 Ma. Is this deliberately formalising Corridor gabbro, or accidental capitalisation?||basic intrusive rock|||Y||17-JAN-23
Corridor gabbro|31133|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Orosirian||||intrusion|Orosirian||||||||No|43484||||||Is this being replaced by Corridor Gabbro?|Layered mafic-ultramafic intrusion.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Corsair metaserpentinites|4757|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|32269|||||||||||N||17-JAN-23
Cosmo Newbery Dolerite|80577|Cosmo Newbery Dyke Suite|79471|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Cambrian|||inferred||Proterozoic|||inferred|||||No|||Spaggiari, C.V., Wingate, M.T.D. (GSWA)|03-JUL-18|||NW-trending suite of mafic dykes; interpreted from aeromagnetic data. This unit is interpreted from distinctive northwesterly linear trends on geophysical imagery and is not observed in outcrop. It is considered likely that dolerite is a main constituent of the unit. It was originally defined as the Cosmo Newbery Dyke Suite (79571), now formalised as Cosmo Newbery Dolerite to avoid form term. See also GSWA ENS: Wingate, MTD and Spaggiari, CV (partial report), Cosmo Newbery Dolerite (P_IP-_nw-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.||basic intrusive rock|||Y||17-JAN-23
Cosmos Ultramafic sequence|83877|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Archean|2670|6|||Archean|2724|3||||||No|69414||||||Yilgarn Craton. Part of the succession at the Cosmos mine, but not part of the Agnew-Wiluna greenstone belt. Hosts several massive and disseminated nickel sulfide deposits (detailed).|Spinifex-textured komatiites, olivine-pyroxene cumulates, olivine orthocumulates, olivine mesocumulates and olivine adcumulates. Metamorphosed. Feldspar-phyric coherent dacites and andesite-dacite crystal tuffs.|metamorphosed ultramafic rock|||N||08-AUG-23
Cossack Metabasite|73854|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Point Samson Group|73847|||Archean|||||Archean||||||||No|24391|||||||||||N||17-JAN-23
Cossigny Member|23512|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Mungaroo Formation|13466|||Ladinian||||deposition|Ladinian||||||||No|41732||M.Middleton|24-SEP-87|||Of Stirling Petroleum N.L. (1979). Well Completion Report for Bruce-1. In the Beagle Sub-basin. Presumably intended to be superseded by Cossigny Formation (in 2001), but usage of Cossigny Member has resumed (2014). Cossigny Member appears to be part of Keraudren Formation in Roebuck and Offshore Canning basins, 2015. Forms intraformational seal.|Paralic and marine siltstone, claystone and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Cotton Well Granodiorite|72705|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Edgar Granitic Complex|72994|Emu Pool Supersuite|68766|Paleoarchean|3312|||intrusion|Paleoarchean|3318|3||||||No|64621||Hickman, A. (GSWA)|23-NOV-06|||For use on map sheet 2855; nearest town Marble Bar.  Dated: 3318+/-3Ma.  Intrudes Owens Gully Diorite.  Part of the Mt Edgar Granitic Complex (GSWA 500K Solid Geology GIS, 2008)|Weakly foliated, fine- to medium-grained, muscovite granodiorite and minor monzogranite.|acid intrusive rock|||Y||18-APR-23
Coucal Formation|32211|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coonterunah Subgroup|69684|||Paleoarchean|3498|||deposition|Paleoarchean|3515|3|isotopic, U/Pb-Pb/Pb ion probe|||6000||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755. Within the Warrawoona Group (Pilbara Supergroup). Marble Bar 250K (2010) gives age as 3515-3498 Ma (after Buick et al. 1995)|Felsic volcanic rocks; local felsic volcanic breccia; metamorphosed.|acid igneous rock|metamorphosed acid igneous rock||N||17-JAN-23
Courin Granodiorite|79004|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Rothsay Suite|79002|Neoarchean||||magmatic crystallisation|Neoarchean|2742|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|70226||Ivanic, T. (GSWA)|13-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Courin Hill, Wurarga 1:100k sheet area. 28deg13'S 116deg25'E. Type area: Courin Hill. Intrusive into Polelle Group supracrustal rocks.|Metagranodiorite to metadiorite; biotite-rich, with K-feldspar megacrystic augen up to 50 mm long; metamonzogranite and pegmatite gneiss and chloritic mafic rafts 1 to 5 m across.|metamorphosed acid igneous rock|metamorphosed intermediate igneous rock||Y||17-JAN-23
Courlbarloo Tonalite|78360|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mount Kenneth Suite|75885|Mesoarchean|2813|3|||Mesoarchean||||||||No|70140||Ivanic, T. (GSWA)|29-AUG-13|||Youanmi 100k sheet.  To use in the southern Murchison Domain. Age: c. 2815 Ma. Type area: Courlbarloo Rockholes, near Youanmi Downs,10 km northwest of Yuinmery Hsd, lat 28deg33', long 118deg48'.|Hornblende tonalite with 3-8mm hornblende phenocrysts; locally weakly deformed; metamorphosed.|metamorphosed acid igneous rock|||Y||20-JUL-23
Cowan Dolomite|26500|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Redmine Group|22744|||Miocene||||deposition|Late Eocene||||||12||No|71788||||||Recent articles show age as Oligocene or Miocene.|Massive, cryptocrystalline buff, white or grey dolomite and dolomitic carbonate mudstone.|carbonate sedimentary rock|||N||17-JAN-23
Cowaramup Gneiss|40167|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Leeuwin Complex|10296|||Neoproterozoic|||||Neoproterozoic||||||||No|24595||||||Previously referred to as Bunker Bay Suite (Kay, 1956).|Strongly deformed and metamorphosed composite of interleaved anorthosite, leucogabbro, gabbro, sheets of granite and pagmatite veins.|acid intrusive rock|basic intrusive rock||N||17-JAN-23
Cowarna Monzogranite|4797|Cowarna Rocks|34231|||Yes|Formation, beds|Formal|Other new published name|Described|||||Siderian|2400|||intrusion|Archean||||||||No|42741|||||||Medium-grained, leucocratic, biotite-bearing monzogranite; K-feldspar phenocrysts.|acid intrusive rock|||Y||17-JAN-23
Cowerdup Metadolerite|80573|Cowerdup Sill|4799|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic|1140||inferred||Paleoproterozoic|1693||inferred, intrusive relationship|||||No|||Wingate, M. (GSWA)|03-JUL-18|||Cocanarup and Raventhorpe 100k. Briefly described in GSWA ENS: Wingate, MTD and Spaggiari, CV (partial report), Cowerdup Metadolerite (P_-_cd-mod): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Mafic dolerite sill differentiated from ultramafic rock at base to granophyre at top; altered to epidote-sericite-chlorite-amphibole|basic intrusive rock|||Y||17-JAN-23
Coyango Greywacke|4826|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian|||||Sakmarian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-1.|||||N||17-JAN-23
Coyrie Formation|26501|||||Yes|Formation, beds|Formal|Other new published name|Defined|Byro Group|3230|||Artinskian||||deposition|Artinskian||||||400|WA|No|44537|45016|||||See also Lexicon. Originally part of Newman Subgroup. SG50-1.|Black shale, siltstone, and sandstone in coarsening-upward succession. Commonly bioturbated.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Crab Creek Calcilutite Member|74633|Crab Creek Calcilutite|21570|||Yes|Member, phase|Formal|Resvd name published|Defined|Sandfire Calcilutite|74623|||Holocene||||deposition|Holocene||||||8|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Originally reserved as 'Crab Creek Calcilutite'.|White/cream shelly, laminated to burrow-structured calcilutite.|regolith|||N||17-JAN-23
Crane Formation|77465|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Triassic||||deposition|Triassic||||||||No|67370|||||||||||N||17-JAN-23
Crean-Hoschke carbonatite|84023|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Reported by Encounter Resources 7-AUG-2023: https://www.encounterresources.com.au/wp-admin/admin-ajax.php?juwpfisadmin=false&action=wpfd&task=file.download&wpfd_category_id=4&wpfd_file_id=1642&preview=1|Niobium-REE mineralised carbonatite dyke||||Y||14-SEP-23
Credo Granodiorite|4875|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786|||||||Medium-grained biotite granodiorite; domal within regional anticline; foliation strongest near margins.|acid intrusive rock|||Y||17-JAN-23
Cretaceous mafic volcanics 76562|76562|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Cretaceous|123|||eruption|Lower Cretaceous|141|||||||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
Cretaceous sedimentary rocks 76565|76565|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Cretaceous|65|||deposition|Lower Cretaceous|97|||||||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 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
Crispin Mylonite|77106|Crispin Conglomerate|24232|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Peak Hill Schist|34414|||Paleoproterozoic|||||Paleoproterozoic||||||||No|65419||||||Of Pirajno and Occhipinti (in prep.).Their preferred term for a mylonitic unit named by Gee (1987) as Crispin Conglomerate.|Quartzite clasts in a matrix of quartz-sericite schist; both mylonitized.|fault or shear rock|||N||17-JAN-23
Cronin Sandstone|25865|Cronin Formation|31378|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Cretaceous||||deposition|Upper Jurassic|||||||WA|No|44998|45153|||||Age appears to be poorly known. said to be Late Triassic or Jurassic in age in 1999 explan notes, but map of same area (and similar vintage) gives age as Cretaceous. Formerly included in old defn of Gunbarrel Basin, but wrong area, and Paterson Orogen (Neoarchean- Ediacaran), but much too young (CEB Dec2011).|Fine to coarse grained sandstone, bioturbated and cross-bedded; minor pebble conglomerate; plant fossils|siliciclastic sedimentary rock|||N||17-JAN-23
Crooked Creek Granite|31789|Crooked Creek|29792|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43853||||||Lissadell 1:250 000 sheet area, east Kimberley. Age updated by I.Sweet. Do not confuse with Crooked Creek units in Qld and NT.|Medium-grained, plagioclase-phyric, biotite granodiorite and monzogranite.|acid intrusive rock|||Y||17-JAN-23
Crossroads Granodiorite|74828|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Big Bell Suite|74825|Neoarchean|2702|6||magmatic crystallisation|Neoarchean|2724|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of Austin Downs Supersuite.|Metagranodiorite to metamonzogranite; commonly foliated|metamorphosed acid igneous rock|||Y||18-APR-23
Crowbar Granodiorite|23522|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2657|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|41786||W.K.Witt|17-DEC-87|||Mention in Witt & Swager (1989) Table 2|Medium- to coarse-grained. equigranular granodiorite.|acid intrusive rock|||Y||17-JAN-23
Crowhurst Group|4951|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Mesoproterozoic|||inferred|deposition|Paleoproterozoic|||inferred|||160||No|44397||||||In the Crowhurst Basin.  Age: c.?1500Ma.|Siltstone, shale, dolomite, stromatolitic dolomite, and sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Crown Basalt|4952|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Woolyeenyer Group|29261|||Archean||||eruption|Archean||||||||No|45543||||||Of Woolyeenyer Group.||basic volcanic rock|||N||17-JAN-23
Croydon Group|4964|||||Yes|Group, Suite|Formal|Variation of published name|Defined|De Grey Supergroup|69685|||Mesoarchean|2931||inferred|deposition|Mesoarchean|3115||inferred|||||No|61253|63441|||Hocking, R.|03-MAY-06|Replaces Bookingarra Group as parent unit for Cistern, Louden, Mount Negri, Kialrah and Rushall units - nomenclature revised in GSWA Record 2006/15 (Van Kranendonk). In the Mallina Basin. In 2016 (Hickman, GSWA Report 160) notes that this group should in future be subdivided into at least three groups on the basis of its exceptional time span (3015-2931 Ma), the existence of a regional unconformity at c.2955 Ma and identification of four deformation events.|Siltstone, shale, iron formation, sandstone, pebbly sandstone, pebble to boulder conglomerate; lesser mafic and felsic volcanic rock; metamorphosed. Deposited as a series of submarine fans.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cudalgarra Member|39658|||||Yes|Member, phase|Formal|Resvd name published|Defined|Nita Formation|14193|||Darriwilian||||deposition|Darriwilian|||||12|21|WA|No|24449|24449|||||Reserved as Cudalgarra by McCracken, S. (1994).|Limestones, dolostones and evaporitic mudstones.|carbonate sedimentary rock|||N||17-JAN-23
Cuddingwarra Formation|27756|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Archean||||deposition|Archean||||||||No|30960|||||||||||N||17-JAN-23
Cue Tonalite|74821|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Cullculli Suite|74815|Neoarchean|2759|||intrusion|Neoarchean|2759|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Annean Supersuite.|Medium- to coarse-grained, metamorphosed leucocratic tonalite.|acid intrusive rock|||Y||17-JAN-23
Cullculli Suite|74815|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean|2733|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2748|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geogical province: Murchison Domain.|Metatonalite, metagranodiorite, and metatrondhjemite; typically hornblende bearing, and with common mafic clots.|metamorphosed acid igneous rock|||Y||17-JAN-23
Cullens Diamictite|75509|Cullens Diamictite""|74638|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mosswood Formation|34556|||Asselian|||||Gzhelian||||||||No|64630||||||Southern Perth Basin, Vasse Coalfield. Accidental formalisation of informal "Cullens Diamictite"?||siliciclastic sedimentary rock|||N||17-JAN-23
Culvida Sandstone|27136|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Anisian||||deposition|Anisian||||||200|WA|No|44998|45153|||||Defn on Tech File E/52-13.|Fine to coarse fluvial cross-bedded fossiliferous sandstone, granule and pebble conglomerate and red siltstone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Cumberdale chert|5007|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29573|||||||||||N||17-JAN-23
Cummins Range carbonatite|5020|||||Yes|Formation, beds|Informal|Variation of published name|Described|||||Tonian|905|2|isotopic, Rb/Sr|eruption|Mesoproterozoic|1012|12|isotopic, U/Pb|||||No|41158||||||See also Cummins Range Carbonatite. Age: Approx 900 Ma. Described by Andrew (1990) in Geology of the mineral Deposits of Australian and Papua New Guinea. AusIMM p711-713. Ages given: Rb/Sr whole rock 905+/-2 Ma (1986), U/Pb zircon  1012+/-12 Ma (1986), K/Ar pyroxenes 854+/- 57 Ma.|Plug of calcite-dominant (sovite) and dolomite-dominant (beforsite) carbonatite phases; a weathered capping of silicified, limonitic collapse breccia; all enclosed by an envelope of carbonated, mica-rich pyroxenite, largely altered to amphibolite.|exotic composition igneous rock|||N||08-FEB-23
Cunaloo Member|23525|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Locker Shale|10561|||Lower Triassic||||deposition|Lower Triassic|||||||WA|No|40617|40617|R.M.Hocking, H.T.Moors|23-MAY-83||||Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Cundaline Formation|31026|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Gorge Creek Group|27160|||Paleoarchean|3015||inferred|deposition|Paleoarchean|3022||inferred|deposition||1000||No|44229|60429|Williams I., Hickman A.|10-MAR-97|||Muccan 1:100 000 sheet 2956. Formerly of the Pilbara Supergroup; now redefined as part of the De Grey Supergroup. Max. depositional ages from detrital zircons: 3445+/-34 Ma, 3398 Ma +/- 15 Ma. GSWA IBG 2020 gives inferred depositional age range as 3022-3015 Ma.|Shale, siltstone, and wacke; local sandstone and conglomerate; metamorphosed|siliciclastic sedimentary rock|||N||27-APR-23
Cundarra Granite|31772|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|43835|||||||Coarse even grained to porphyritic monzogranite with amphibole, biotite or orthopyroxene clots in feldspathic halos. Retrograde amphibolite facies metamorphism.|acid intrusive rock|||Y||17-JAN-23
Cundeelee Igneous Complex|81867|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Permian|||inferred, overlying unit||Archean||||||||No|||Spaggiari, C. (GSWA)|21-APR-20|||The Cundeelee Intrusion lies below a sharp Permian unconformity at 551m depth, and is a cylindrically-layered intrusion. The ultramafic sequence is cut by vertical carbonate-apatite-phlogopite veins. The close spatial association suggests a genetic link between the ultramafic host and carbonatite dykes, forming an alkali intrusive complex. This information was derived from WAMEX Report A62140. To be published in Digital interpreted bedrock geology layers as part of the Geological Survey of Western Australia's series of digital map layers. To be published as part of a GIS package by June 30th 2020. Nearest town is Kalgoorlie. Occurs on Map sheet Cundeelee SH51-11. GSWA ENS gives Archean to Permian lithstrat code in Feb 2023, but no other information.|Cumulate-textured pyroxenite (incl. cpx adcumulate) and porphyritic harzburgite adcumulate (pervasively serpentinised peridotite to antigorite, minor lizardite and chrysotile). Biotite/phlogopite occur as primary intercumulus phase.|ultramafic intrusive rock|||Y||27-APR-23
Cundimurra Monzogranite|77800|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Tuckanarra Suite|74831|Neoarchean|2668|||intrusion|Neoarchean|2690|||||||No|69626||||||Reserved as Cundimurra Granite.|Metamonzogranite to metasyenogranite; commonly with pegmatite veins; locally undeformed with common magmatic foliation. Schistose in part.|metamorphosed acid igneous rock|intermediate intrusive rock||Y||17-JAN-23
Cundlego Formation|5027|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Byro Group|3230|||Kungurian||||deposition|Artinskian||||||412|WA|No|44537|45016|||||See also Lexicon. Of Minilya Subgroup. Defined 1967. Part of the Minilya Sub-Group (Byro Group). Type section: Minilya River, north of Wandagee Hill, 23d45m30sS, 114d25m00sE.|Quartz wacke, siltstone, carbonaceous siltstone and shale, locally fossiliferous.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Curbur Formation|5038|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian|||||||WA|No|45015|45016|||||See also Lexicon. Defn on Tech File G/50-5.|||||N||17-JAN-23
Curdamuda Sandstone|5039|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Oxfordian||||deposition|Oxfordian||||||||No|44657||||||See also Lexicon.|Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Curran Member|40090|Curran Formation|5066|||Yes|Member, phase|Formal|Variation of published name|Defined|Ullawarra Formation|18795|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||100|250|WA|No|50380|24183|||||Within the Bangemall Supergroup.|Parallel-planar laminated siltstone interbedded with thin- to medium-bedded, fine- to coarse-grained sandstone and minor chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Cutinduna Supersuite|68666|||||Yes|Supergroup|Formal|Other new published name|Described|||||Mesoarchean|2905||||Mesoarchean|2908|||||||No|64654||Van Kranendonk, M.  (GSWA)|04-APR-05|||To be used on WARRIE mapsheet; nearest town is Marble Bar.  Named for Cutinda Creek. Used to include Bamboo Springs Monzogranite. What units are part of this Supersuite?|Monzogranite.|acid intrusive rock|||Y||17-JAN-23
Cyril Sandstone|27266|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian|||||||WA|No|40993|40993|G.M.Beere, A.J.Mory|21-OCT-83|||||siliciclastic sedimentary rock|||N||17-JAN-23
Dairy Monzogranite|33663|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|44203||||||Edjudina 1:250 000 sheet area.|Biotite monzogranite; metamorphosed|acid intrusive rock|||Y||18-APR-23
Dalaroo Siltstone|28282|Dalaroo Formation|5131|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Billeranga Subgroup|25785|||Neoproterozoic||||deposition|Neoproterozoic|||||||WA|No|36872|36293||||||Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Dales Gorge Member|5139|||||Yes|Member, phase|Formal|Variation of published name|Defined|Brockman Iron Formation|2602|||Siderian|2464||inferred|deposition|Siderian|2495|16|isotopic, U/Pb-Pb/Pb ion probe|||150|WA|Yes|71785||||||Defined in Trendall & Blockley (1968). Full details in card file. 2490 +/- 20 Ma on zircon, 2470 +/- 4 Ma using SHRIMP. Contains high-grade hematite ore; mined at Tom Price. Basal unit in Brockman Iron Formation. Max & min ages from Trendall et al (2004), RefID 60706.|Predominantly well-banded banded iron formation made up almost entirely of chert and iron oxides. Includes ferruginous volcanic tuffs, 2-3m thick with 10-20cm of potassium feldspar/stilpnomelane spherules. Contains ~20cm microkrystite-rich (spherule)unit.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Dalgaranga Formation|23528|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||deposition|Archean||||||||No|42533||K.P.Watkins, A.H.Hickman, R.Davy|05-DEC-85|||Name probably abandoned?|Succession of dacite and rhyolite tuffs, volcanogenic sandstone and conglomerate.|acid volcanic rock|||N||17-JAN-23
Dalgaranga dolerite|76061|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Yalgowra Suite|74829|Neoarchean|2719|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Archean||||||||No|66195||||||Informal reference to gabbro from Dalgaranga greenstone belt, Murchison Domain, Youanmi Terrane.  Age: Magmatic crystallisation age of granophyre unit from upper part of gabbro intrusion; dated sample is from near the southern termination of a north-plunging synclinal fold closure in the Dalgaranga Greenstone Belt; coeval with ~2715 Ma Maddina Basalt or ~2725 Ma Gidley Granophyre. Age: 2719+/-6Ma, in the range of the Yalgowra Suite. Related to Dalgaranga Formation? Not related to Dalgaringa Supersuite, Gascoyne Complex.|Lower part: mottled gabbro containing large poikilitic hornblende and clinopyroxene grains. Upper part: quartz gabbro and granophyre (dated rock). Lower half of body contains numerous felsic tuff xenoliths possibly derived from footwall units|basic intrusive rock|||Y||17-JAN-23
Dalgaringa Supersuite|33444|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Orosirian|1970|||intrusion|Orosirian|2005|||||||No|22904||Sheppard S.|10-NOV-98|||Glenburgh 1:250 000 sheet area, Gascoyne Region. Age: 2005-1970 Ma. Not related to Dalgaranga dolerite in Murchison Domain.|Foliated to gneissic granites; metatonalite and metagranodiorite; minor amphibolite, local mafic granulite. All rock types are blotchy from clots of fine-grained biotite after garnet.|metamorphosed acid igneous rock|||Y||05-OCT-23
Dalton Suite|32238|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Mount Billroth Supersuite|68670|Mesoarchean|3070|||intrusion|Mesoarchean|3200|||||||No|61266||Van Kranendonk M.J.|09-APR-98|||North Shaw 1:100 000 sheet area 2755. Name for rocks of the 'Soanesville Sill Complex' structure occurring within the Soanesville Group (GSWA 03/06). Soanesville Basin. See also misspelling Daltons Suite.|Gabbro, dolerite, dunite, peridotite, serpentine-chlorite schist, serpentinite, metaleucogabbro, metapyroxenite, ultramafic schist; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Daltons Creek Granite|34108|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Archean||||intrusion|Archean|2936|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|22615||||||North Shaw 1: 100 00 (2755) SHRIMP dating 2936 +/-5Ma|Granite|acid intrusive rock|||Y||17-JAN-23
Dalyup Gneiss|30537|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Calymmian|1634|26|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Paleoproterozoic|1695|16|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|43280||||||Albany-Fraser Orogen. Main component of the Biranup Zone (formerly Biranup Complex), Kepa Kurl Booya Province [2009]. Interleaved with metagabbro and pyroxene granulite of the Fraser Complex. Granitic protoliths 1690-1660 Ma; intensely deformed and metamorphosed up to granulite facies. Metamorphism ~1180 Ma.|Intensely deformed and metamorphosed up to granulite facies. Granodioritic, monzogranitic, syenogranitic gneisses, OPX-bearing granitic gneiss, and quartz-magnetite gneiss, mafic gneiss and amphibolite; strongly magnetic - distinctly linear trending.|high grade metamorphic rock|||Y||17-JAN-23
Dampier Limestone|5168|Dampier Formation|27757|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Pleistocene||||deposition|Pleistocene||||||||No|38998|||||||Shelly calcarenite to calcirudite; shallow marine and beach-ridge deposits; extensive calcretization.|carbonate sedimentary rock|||N||17-JAN-23
Dandar Sandstone|5175|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Cretaceous||||deposition|Cretaceous||||||||No|32648||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Dandaragan Sandstone|5177|Dandaragan Series""|28494|||Yes|Formation, beds|Formal|Variation of published name|Defined|Warnbro Group|19470|||Albian||||deposition|Aptian||||||33|WA|No|30188|36293|||||(Cockbain and Playford, 1973). Of  Warnbro Group in GSWA 1:500 000 geol dataset 2006.|Medium- to coarse-grained feldspathic sandstone, grading to fine conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Danjo Monzogranite|39347|Danjo monzogranite|38666|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||intrusion|Archean|2703|4|isotopic, U/Pb|||||No|24091||||||||acid intrusive rock|||Y|I-type|17-JAN-23
Dardie Monzogranite|68658|Widgiemooltha Monzogranite|27002|||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|69152||Groenewald, B. (GSWA)|31-MAR-05|||Named for Dardie Rocks,  the central part of the intrusion called "Widgiemooltha Monzogranite" on GSWA maps (but never formally registered as such). Shown on WIDGIEMOOLTHA SH51-14 and COWAN 3234.|Porphyritic monzogranite; microcline porphyroclasts; locally foliated; metamorphosed|acid intrusive rock|||Y||18-APR-23
Darkan Quartz Monzonite|23532|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||intrusion|Archean||||||||No|39160||S.A.Wilde, I.W.Walker|01-MAR-78||||Microcline-phyric clinopyroxene-hornblende-bearing quartz monzonite; some granodiorite, monzogranite, diorite, and quartz diorite.|intermediate intrusive rock|||Y||17-JAN-23
Darlot Formation|25872|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Quaternary||||deposition|Quaternary|||||||WA|No|41199|41199||||||||||N||17-JAN-23
Darwin Formation|5253|Darwin Member|5258|||Yes|Formation, beds|Formal|Variation of published name|Defined|Bathurst Island Group|1249|||Albian|||inferred, biostratigraphic correlation|deposition|Aptian|||inferred, biostratigraphic correlation||||NT|No|44965|42442|||||Supersedes Darwin Member? See also Lexicon.  Along with the Petrel Formation, equivalent to the former "Mullaman Beds". Different unit from Darwin Granite in Tasmania. Shown as Aptian to Albian in 2015|Kaolinitic claystone, commonly radiolaria-rich, silty in places, montmorillonitic, glauconitic and calcareous when fresh; basal conglomerate; minor bioturbated siltstone, carbonate, sandy claystone and clayey sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Dave Hill intrusion|77788|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Sally Malay Suite|78623|Paleoproterozoic|1829|3|inferred, intrusive relationship|intrusion|Paleoproterozoic|1839|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|60498||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Includes olivine gabbronorite. Mafic-ultramafic cumulates include olivine-rich troctolites to olivine leuco-norites with prominent orthopyroxene oikocrysts.|basic intrusive rock|||Y||17-JAN-23
Davey Well Granite|73607|||||Yes|Formation, beds|Formal|Other new published name|Described|||Durlacher Supersuite|37648|Statherian|1648|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1667|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|63469||Sheppard, S. (GSWA)|24-SEP-07|||Age: 1667+/-4 Ma (SHRIMP U-Pb zircon). For use on map sheet SG50-02; nearest town Gascoyne Junction. To be published: GSWA, 2007, Western Capricorn Orogen, 2007 update: 1:100K Geological Information Series.|Schistose coarse-grained, strongly porphyritic biotite metamonzogranite; rounded phenocrysts of K-feldspar up to 6cm in diameter.|metamorphosed acid igneous rock|||Y||17-JAN-23
Davis Dolerite|5276|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Kalkarindji Suite|75724|Cambrian|511||inferred|intrusion|Mesoproterozoic|1070||inferred, intrusive relationship|||||No|44298||||||First described in the Balfour Downs 1:250 000 sheet area and mostly considered to be Mesoproterozoic until 2017. Also shown on Nullagine and Robertson sheets. May includes dolerites of several different ages. Intrudes Manganese Group and Fortescue Group. Now [2018] infered to be younger and assigned to Kalkarindji Suite. See also GSWA ENS: Hickman, AH and MARTIN, DMcB (partial report), Davis Dolerite (E-KJdv-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite in sills and dykes; fine to medium grained.|basic intrusive rock|||Y||23-MAR-23
Davitt Syenogranite|39506|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3315||inferred, intrusive relationship|intrusion|Paleoarchean|||||||WA|No|65726||Williams, I.|23-OCT-03||||Foliated, inequigranular, medium-grained,leucocratic, pink-grey muscovite-garnet syenogranite; metamorphosed.|metamorphosed igneous rock|||Y||17-JAN-23
Davyhurst Granite|79347|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Main body of granite lies across both the Davyhurst and Riverina 1:100K map sheet areas. To be published = GSWA Digital product 2016.|Granite; typically poorly exposed and deeply weathered|acid intrusive rock|||Y||17-JAN-23
Day Rock Granodiorite|78637|Day Rock granodiorite|41040|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2676|5||intrusion|Neoarchean||||||||No|69152|||||||Granodiorite; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Daylight Well Granodiorite|38805|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2658|6||intrusion|Archean|2666|6||||||No|23930||||||Age: 2658+/-6Ma.||acid intrusive rock|||Y|I-type|17-JAN-23
De Grey Supergroup|69685|De Grey Group|21628|||Yes|Supergroup|Formal|Variation of published name|Described|||||Mesoarchean|2920||inferred|deposition|Mesoarchean|3066||inferred|||8000||No|61253||||||Redefined to include Croydon Group (Mallina Basin), Nullagine Group (Mosquito Creek Basin), Whim Creek (Whim Creek Basin) and Gorge Creek Groups (Gorge Creek Basin) in the De Grey Superbasin, Pilbara Craton. Goldsworthy Group now obsolete .Dating of Farell Quartzite suggests depostional age may be as old as 3066 Ma  (Pilbara 2014 GIS update). Detrital zircons are considerably older at 3410+\-6 Ma.|Shale, wacke, feldspathic sandstone, arkose, banded iron formation, conglomerate, basalt, high-Mg basalt, siltstone, chert.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||26-JUN-23
DeGrey River Alluvium|5296|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|35711|||||||||||N||17-JAN-23
Dead Bullock Formation|35396|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tanami Group|17763|||Orosirian|1838|6|isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1865|12|isotopic, U/Pb-Pb/Pb ion probe||1000|4000|NT|Yes|50315||Hendrickx M.|11-JAN-00|||~1km thick. Hosts gold deposits.|Grey siltstone, intercalated chert, interbedded silty shale, fine grained sandstone, laminated siltstone, massive quartzite, fine grained black shale, boudin chert, calc-silicate? (Fe-amphibolite interlayered with massive chert), amphibolite.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Dead Finish Tonalite|29793|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tickalara Metamorphics|18130|Dougalls Suite|24927|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||Sheppard S.|16-OCT-95|||Dixon Range 1:250 000 sheet area (east Kimberley region).  Of the Dougalls Suite.|Metamorphosed hornblende-biotite(-epidote) tonalite; inclusions of metadolerite and amphibolite|acid intrusive rock|||Y||17-JAN-23
Dean Quartzite|5300|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Tonian|750|||deposition|Tonian|850|||||100||No|48842|48864|||||Mount Harris Basalt has been thrust over Dean Quartzite at Mt Harris. Correlated with Heavitree Quartzite in northern Amadeus Basin.|Fine to coarse grained quartzite, quartz sandstone; minor vein quartz pebble conglomerate, sericite-quartz schist, quartz-kyanite-muscovite layers, feldspathic sandstone.|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||20-SEP-23
Deception Hill Microgranite|75071|Deception Hill Porphyry|35353|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||intrusion|Archean|3023|10|isotopic, U/Pb-Pb/Pb ion probe|||||No|63778||||||Renamed to 'Microgranite' for Central Yilgarn 2008 GIS package, to follow GSWA convention of not using the term porphyry [advice received from GSWA Jun 2016]|Massive, quartz- and feldspar-phyric microgranite; metamorphosed|acid intrusive rock|||N||18-APR-23
Decoration Sandstone|79161|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Paleozoic|||inferred, overlying unit|deposition|Paleozoic|||inferred|deposition||109||No|70772||Spaggiari, C. (GSWA)|04-AUG-15|||A redbed sandstone of probable Cambro-Ordovician age[?] in a drillhole. disconformably overlying Loongana Formation is Cretaceous. Underlain by proterozoic crystalline basement.|Red-bed sandstone; 3 main facies: 1) uppermost faintly laminated mottled green and red mudrock, 2) fining upward succession of white sandstone and thin pale green mudstone interbeds, 3) basal Fe-rich pebbly conglomerate with thick sand interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Deeadeea Sandstone Member|74798|||||Yes|Member, phase|Formal|Other new published name|Fully described|Carolyn Formation|24214|||Sakmarian|||inferred|deposition|Sakmarian|||inferred|||30|WA|No|64502||||||See also the misspelt Deeadeea Member and Deeadeea Claystone Member. With the relegation of Carolyn Formation to informal status, this Member may be upgraded to a Formation of the Grant Group after further assessment (Backhouse and Mory, 2020 GSWA Report 207).|Poorly bedded, partly cross-bedded, medium to coarse grained, moderately sorted reddish-brown sandstone with well rounded grains.|siliciclastic sedimentary rock|||N||17-JAN-23
Deep River|73556|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|02-AUG-07|||Probably to used as Deep River Formation.|||||N||17-JAN-23
Defiance Dolerite|23540|Defiance Dolerite Member|5337|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Kalgoorlie Group|26647|||Neoarchean|2680|8||intrusion|Neoarchean|2690|5||||300||No|41588|60627|N.J.Archibald, A.Cowden|16-DEC-86||||Differentiated sill: basal pyroxenite to dolerite; granophyric phase in the central to upper sections; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Delambre Formation|23541|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene|0|||deposition|Late Miocene|8|||||1300|WA|No|40800|40800|M.Apthorpe|04-JUL-84||||Offshore, fine-grained calcareous sequence, with foraminiferal assemblages.|carbonate sedimentary rock|||N||17-JAN-23
Denham Sand|75843|||||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Holocene|||inferred|deposition|Upper Pleistocene|||inferred|||||No|69558||Playford, P., Hocking, R. (GSWA)|02-FEB-11|||Holocene sand in Shark Bay area. To be published: GSWA Report or Bulletin, in next couple of years. May be published earlier in AJES or similar paper, but full definition will be in GSWA publication.|Red quartz and lime sands forming parabolic and transverse dunes.|regolith|||N||17-JAN-23
Denison beds|75574|Denison Beds|5368|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cryogenian||||deposition|Cryogenian|||||||WA|No|65074||||||Defined as Denison Beds 1973. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 353, 357. May be lateral equivalent of Redcliff Pound Group. Neoproterozoic.|Quartz arenite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Depot Granodiorite|5384|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42698|||||||Hornblende granodiorite and tonalite with scattered microcline phenocrysts; mafic granite.|acid intrusive rock|||Y||17-JAN-23
Depuch Formation|28501|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Upper Jurassic||||deposition|Hettangian||||||||No|42473||||||This name appears to have been introduced by Logan et al. in 1970 for a well indurated red-brown calcarenite and calcirudite Pleistocene limestone along the margins of the Depuch and Useless Inlets of Shark Bay, WA, Carnarvon Basin (see STRATNO 80241). The same name has been used more recently offshore for a Jurassic sequence of  thin coaly and algal-rich mudstones and pro-delta marine shales and fluvio-deltaic sandstones in the Roebuck and offshore Canning basins. The Pleistocene unit has recently (2013) been renamed the Depuch Limestone.|Includes thin coaly and algal-rich mudstones and pro-delta marine shales.|fine grained siliciclastic rock|||N||17-JAN-23
Depuch Limestone|80140|Depuch Formation (Carnarvon Basin)|80241|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pleistocene|||inferred||Pleistocene|||inferred|||||No|69558||||||The authors (Playford et al. 2013) state that this is a renaming of the Depuch Formation, citing  the reason that limestone is the primary lithology, however little information is provided further justifying this change. However, the fact that Depuch Formation has also been used for a Jurassic unit of different lithology offshore, makes a name change for this Pleistocene unit helpful in distinguishing it.|Strongly cemented red-brown calcarenite and calcirudite.|carbonate sedimentary rock|||N||17-JAN-23
Deserts Revenge Syenogranite|75770|Desert's Revenge Granite|31862|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||O'Callaghans Supersuite|31858|Neoproterozoic|625||inferred, geochemical correlation|intrusion|Neoproterozoic|625||inferred, geochemical correlation|||||No|65455||||||Of the O'Callaghans Supersuite, Paterson Province. Contains clusterings of geochemical analyses with high U.|Syenogranite to alkali-feldspar
 granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Desirable Pillow Lava Member|5416|Desirable Pillow Lavas|5418|||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|30562|||||||||||N||17-JAN-23
Despair Granite|30349|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2650||isotopic, U/Pb-Pb/Pb ion probe|||||No|43830||Occhipinti S.|23-JUL-96|||Glengarry Basin. Informally called Wilthorpe granite in a 1992 thesis.|Biotite monzogranite, foliated to locally massive; includes lenses of biotite schist, quartzite, metamorphosed banded iron-formation, amphibolite, and quartzite|acid intrusive rock|||Y||18-APR-23
Devil Creek Formation|25878|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, intrusive relationship|deposition|Statherian|1620||inferred, lithostratigraphic correlation||85|450|WA|No|44319|24183|||||Within the Bangemall Supergroup. Edmund Basin.85 - 200m thick.|Laminated to thick-bedded dolostone, dolorudite; interbedded shale, dolomitic breccia, chert and siltstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Devils Elbow No.3 kimberlite|5433|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|41158|||||||Kimberlite|exotic composition igneous rock|||Y||17-JAN-23
Devon Consols Basalt|5437|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hannans Subgroup|77860|||Neoarchean|2692|4|inferred, overlying unit|eruption|Neoarchean|2693|30|||50|500|WA|Yes|68217|||||||Komatiitic basalt; massive to variolitic; locally pillowed; metamorphosed.|basic volcanic rock|||N||16-AUG-23
Devonian conglomerates associated with reef complexes 80958|80958|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Famennian|||inferred||Givetian|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Lennard Shelf, Canning Basin. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Boulder to cobble conglomerate and sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Devonian sedimentary rocks 76554|76554|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Famennian||||deposition|Middle Devonian|384|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset.|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Devonian to Carboniferous sedimentary rocks 76547|76547|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mississippian|314|||deposition|Lower Devonian|410|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Dewtop Formation|26518|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||deposition|Archean||||||||No|30965|||||||||||N||17-JAN-23
Dick Creek Dolomite|5459|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37371|||||||Dolomite|carbonate sedimentary rock|||N||17-JAN-23
Diebil Subgroup|26263|||||Yes|Subgroup|Formal|Other new published name|Defined|||||Mesoproterozoic|||||Mesoproterozoic|||||||WA|No|40089|40089|A.T.Brakel|01-JUN-79|||After  being excised from Bangemall Group then being placed in the "Savory Group",  the rocks of this subgroup now form "mostly Sunbeam and Diasappointment Groups" - see RefID: 50188.|||||N||17-JAN-23
Diemals Formation|24244|Diemals formation|5466|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Neoarchean|2655|||deposition|Neoarchean|2729|9|isotopic, U/Pb-Pb/Pb ion probe|||5000|WA|Yes|38480|38480|D.F.Blight|22-FEB-80|WA SNSC||Use on Barlee 1:250 000 sheet.|Foliated conglomerate, sandstone, siltstone and argillite. Composition of basal units depends on underlying rocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Dillinger Monzogranite|21659|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Kevins Dam Suite|31898|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|23601||Griffin T.J. & Tyler I.M.|09-DEC-92|||East Kimberley Region. Kimberley Province.  Of the Sally Downs Supersuite. Part of the Bow River batholith in the Lamboo Complex.|Medium to fine grained, locally porphyritic leucocratic biotite monzogranite and minor syenogranite; rich in mafic inclusions adjacent to gabbro.|acid intrusive rock|||Y||17-JAN-23
Ding Dong Downs Volcanics|25879|||||Yes|Formation, beds|Formal|Other new published name|Defined|Halls Creek Group|27793|Sophie Downs Suite|41468|Orosirian|1907|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1912|3|isotopic, U/Pb|||1000|WA|No|44317|45047|||||Dated 1912 +/- 3 Ma and 1910Ma.  Of the Sophie Downs Suite. Originally defined as part of the Halls Creek Group, now recognised as a separate unit. Parts also previously mapped as Biscay Formation.  Intruded by Woodward Dolerite.|Amygdaloidal metabasalt and amphibolite, metagabbro and meta-anorthosite, cordierite-bearing pelite; metadolerite sills; minor metamorphosed rhyolite.|metamorphosed basic igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Ding Dong Downs Volcanics - felsic volcanics|74376|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Ding Dong Downs Volcanics|25879|||Orosirian||||deposition|Orosirian||||||||No||||||||Metamorphosed rhyolite; minor interlayered metamorphosed basalt, metasedimentary rocks and metadolerite sills|acid volcanic rock|sedimentary rock||N||17-JAN-23
Dingo Claystone|5507|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Tithonian|147||inferred|deposition|Callovian|165||inferred|||802|WA|No|44998||||||See also Lexicon. Ages, relations, lithology updated from GA Timescales Project Feb 2009.|Marine claystones and sporadic siltstones.|fine grained siliciclastic rock|||N||17-JAN-23
Dingo Creek Granite|36000|Dingo Granite (WA)|34308|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Durlacher Supersuite|37648|Statherian|1620|||intrusion|Statherian|1674|8|isotopic, U/Pb-Pb/Pb ion probe||||WA|Yes|50292|61262|Sandi Occhipinti - Curtin University|23-MAY-01|||Name reserved for Edmund 1:100K Map. Is the same as Dingo Granite used by J.Pearson 1996, but as Dingo has been used for other units first and Dingo Granite in Qld, Dingo Granite in WA is informal only, and now replaced by Dingo Creek Granite.|Mainly fine to medium-grained porphyritic biotite-muscovite monzogranite to syenogranite; K-feldspar phenocrysts abundant (40% plus).|acid intrusive rock|||Y||17-JAN-23
Dingo Intrusion|31684|Dingo Complex|24920|||Yes|Formation, beds|Formal|Variation of published name|Described|||Radley Suite|68740|Archean||||intrusion|Archean|2925|||||||No|43822||||||Informal name? Invalid. Dingo Claystone has priority. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Part of the Sisters Supersuite.|Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite, and minor anorthosite; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Dingo Range Granite|75715|Dingo Range|72471|||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Champion, D.|20-JUL-10|||Archean granite in Sir Samuel 1:250 000 sheet area||acid intrusive rock|||N||17-JAN-23
Dinner Creek Tonalite|31790|Dinner Creek|29804|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43853||||||Lissadell 1:250 000 sheet area, east Kimberley region. Age updated by I.Sweet.|Fine- to medium-grained hypersthene biotite amphibole tonalite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Diorite Bore Metamorphic Complex|5517|||||Yes|Group, Suite|Formal|Unknown or process pending|Described||||||||||||||||||No|37213|||||||||||Y||17-JAN-23
Dirk Hartog Group|37057|Dirk Hartog Formation|5522|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Pridoli|||||Upper Ordovician||||||739|WA|No|1943|1943|||||Meant to supersede Dirk Hartog Formation. Established by Gorter, Nicoll and Foster (1994) WABS symposium p373-396. Upper boundary of Dirk Hartog Group is now at a type 1 sequence boundary with the overlying Faure Formation. Shows traces of gas and residual oil. Dolomite is a potential hydrocarbon reservoir.|Interbedded light-grey to light-grey-brown dolomite and gypsum with minor shale.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Disappointment Group|33754|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Ediacaran|||inferred, geological correlation||Ediacaran|580||inferred, geological correlation|||1800|WA|No|22907|22907|Hocking R.|28-OCT-99|||Replaced most of younger part of the Savory Group. (Sunbeam Group replaced the older part of the Savory Group.)|Sandstone, siltstone, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Discovery Formation|34912|Discovery Chert|5532|||Yes|Formation, beds|Formal|Variation of published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, intrusive relationship|deposition|Statherian|1620||inferred, lithostratigraphic correlation||50|365|WA|No|22905|24183|||||Within the Bangemall Supergroup. Formerly Discovery Chert of Edmund Subgroup (Bangemall Group). Edmund Basin.|Planar-laminated, pyritic, silicified carbonaceous siltstone, with cubic and rhombohedral mineral casts after pyrite or evaporites; local beds of silicified sandstone, pebble conglomerate and sedimentary breccia occur.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Discretion Granite|30803|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Durlacher Supersuite|37648|Statherian|1619|15|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Statherian|1644|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|43830||Occhipinti S.|17-JAN-97|||ROBINSON RANGE 1:250 000 sheet area and beyond. Intrudes the Yarlarweelor Gneiss Complex.  Mapped as Durlacher Supersuite in GSWA 500K Solid Geology GIS (2008)|Fine to medium grained, equigranular to porphyritic, biotite monzogranite with tabular K-feldspar phenocrysts.|acid intrusive rock|||Y||17-JAN-23
Ditji Formation|77448|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Kulshill Group|9896|||Sakmarian||||deposition|Sakmarian|291|||deposition|||WA|No|67354||||||Has reservoir potential. Apparently correlative with Fossil Cliff Sandstone, Callytharra Foramtion and Nura Nura Member.|Hard calcareous sandstone grading to sandy limestones (sparite cement in coarse-grained sandstone); minor coal interbeds; a distinctive bed with high radioactivity and density, low resistivity and sonic velocity: possibly bentonite from volcanic ash.|carbonate sedimentary rock|||N||17-JAN-23
Dixie Sill|33872|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|22534||Witt, W.K.||||Informal name.|||||Y||17-JAN-23
Dixon Island Formation|73622|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Mesoarchean||||deposition|Paleoarchean|3195|15|isotopic, U/Pb|||400||No|24391||||||A north eastern extension of the Cleaverville greenstone belt, interpreted as oceanic sea-floor of an immature island arc, based on basaltic and rhyolitic bimodal volcanism. Incorrectly assigned to misnamed Cleaverville Group|Felsic volcanics, black-white chert, felsic tuff, ferruginous chert and banded iron formation.|acid volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Dixon Range Formation|81737|Dixon Range beds|29414|||Yes|Formation, beds|Formal|Variation of published name|Described|Tjauwata Group|36772|||Mesoproterozoic|1030||inferred||Mesoproterozoic|1030||inferred|||||No|71268||||||Bentley Basin, Paterson Orogen.|Sandstone, arkose, siltstone, polymict conglomerate; rare stromatolitic dolomite; locally metamorphosed|siliciclastic sedimentary rock|||N||17-JAN-23
Djada Hill Lamproite|5540|Djada Hill lamproite|5541|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Djigumirri Member|23546|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|40993||Trendall, A.F.|12-APR-83|||||siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Djilirri Limestone|23547|Ningbing Limestone|14169|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Ningbing Group|14166|||Famennian||||deposition|Famennian|||||||WA|No|40993|40993|Trendall, A.F.|13-APR-83|||Formerly Ningbing Limestone & Jeremiah Member.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
Djugun Member|74634|||||Yes|Member, phase|Formal|Resvd name published|Defined|Sandfire Calcilutite|74623|||Holocene||||deposition|Holocene||||||2|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|Muddy red quartz sand, muddy brown quartz sand (mud in the muddy sand is kaolinitic and/or calcilutaceous); sheet-like deposit occurring between red sand and calcilutite.|regolith|||N||17-JAN-23
Dockrell Formation|23548|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Thanetian||||deposition|Selandian||||||260|WA|No|40800|40800|M.Apthorpe|09-FEB-84|||||medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Doctors Creek Formation|24245|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||12|WA|Yes|36483|36483|Semeniuk, V.|08-DEC-75|||Age: 7,450-5,840yrs B.P. (for wood from this unit).|Sand, shelly sand, sand/mud laminite, bioturbated mud, laminated mud, and conglomerate - mostly as lensoid, ribbon and/or wedge-shaped bodies [see DEFINITION  for further detail]|siliciclastic sedimentary rock|||N||17-JAN-23
Dodonea Member|74867|Dodonea Carbonate Member|74167|||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Worral Formation|24124|||Llandovery|||biozone|deposition|Llandovery|||biozone||||WA|No|64643||||||Reserved as Dodonea Carbonate Member (Haines 2008) - for use on CROSSLAND sheet.; nearest town Fitzroy Crossing.  Replaces  "lower carbonate member" of Worral Formation (Lehmann 1984). Type section at Barbwire 1 petroleum well (596-613m). For publication in: GSWA Report 2008.|A distinctive unit dominated by massive to weakly laminated and nodular carbonate, usually pale grey to beige dolomite, locally limestone; grading upwards to dolomitic or calcareous mudstone at the top; local minor sand.|carbonate sedimentary rock|||N||17-JAN-23
Domal Porphyry|5578|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|30766|||||||||||U||17-JAN-23
Dombey Formation|74053|Dombey Member|5585|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hyland Bay Subgroup|77685|||Changhsingian||||deposition|Wuchiapingian||||||||No|13242|13242|||||Of Hyland Bay Sub-group (Kinmore Gp). Subdivided into 'defined' Upper and Lower Dombey Fm. Supersedes Dombey Member (Hyland Bay Formation).|Bryozoan-rich limestone with shaly lower section passing up into massive limestone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Dominic Shale|23552|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Givetian||||deposition|Givetian|||||||WA|No|40837|40837|P.Lehmann|20-JAN-84|||||siliciclastic sedimentary rock|||N||17-JAN-23
Donegal Komatiite|77934|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||eruption|Archean||||||100||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Donegal Mine. Map Sheet: SH51-1,  Munjeroo 2941. Komatiite and komatiite flow units; olivine spinifex texture and local well developed cumulate zones; includes talc-chlorite schist; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Komatiite and komatiite flow units; olivine spinifex texture and local well developed cumulate zones; includes basal talc-chlorite schist; metamorphosed|metamorphosed ultramafic rock|||N||17-JAN-23
Dongara Sandstone|5600|Dongara Member|5599|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Changhsingian||||deposition|Kungurian||||||336||No|31561||||||(Playford et al., 1976).|Massive, predominantly medium to coarse-grained, moderately to well sorted, quartzose sandstone; heavy mineral concentrations and shaly intercalations in the middle part; fine to coarse quartz sandstone in lower parts.|siliciclastic sedimentary rock|||N||17-JAN-23
Dongara Sequence|79244|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Late Permian|||||Late Permian||||||||No|70097||||||Offshore northern Perth Basin - Beagle Ridge and Abrolhos Sub-basin. See also Dongara Sandstone.|||||N||17-JAN-23
Donnybrook Sandstone|28510|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Capel River Group|3540|||Lower Cretaceous||||deposition|Lower Cretaceous|125|||||200|WA|No|44303|36293|||||See also Lexicon.  Used as dimension stone in the building industry. A commercial name as well as a stratigraphic name.|Indurated fine- to medium-grained feldspathic and kaolinitic sandstone with shale partings and colour variations from white to beige and pink.|siliciclastic sedimentary rock|||N||17-JAN-23
Doodlakine Granite|5615|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Archean||||intrusion|Archean||||||||No|38539||||||||acid intrusive rock|||Y||17-JAN-23
Doolgunna Formation|5618|Doolgunna Arkose|24251|||Yes|Formation, beds|Formal|Other new published name|Redefined|Mooloogool Group|22371|||Paleoproterozoic||||deposition|Paleoproterozoic|2170||inferred|maximum depositional age||2000|WA|No|40297|65419|||||Became part of Mooloogool Subgroup, Glengarry Group in new Glengarry Basin stratigraphy of Pirajno & Occhipinti, then part of Mooloogool Group, Yerrida Basin.|Arkosic sandstone and quartz wacke; minor conglomerate, quartz siltstone, and laminated quartz sandstone|siliciclastic sedimentary rock|||N||18-APR-23
Doon Doon breccia|35655|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neogene|||||Cenozoic||||||||No|23125|||||||Breccia|sedimentary rock|||N||17-JAN-23
Double Bar Formation|32212|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coonterunah Subgroup|69684|||Paleoarchean||||deposition|Paleoarchean|3498||inferred, underlying unit|||2000||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755. Within the Warrawoona Group (Pilbara Supergroup). Age given as <3498 Ma in 2010-2012 GSWA maps.|Basalt, massive or pillowed, locally schistose, metamorphosed; silicified amphibolite and amphibolite schist, medium grained and variably foliated; silicified metamafic volcanic rock; mafic schist derived from basalt.|metamorphosed basic igneous rock|||N||17-JAN-23
Double Nob Formation|24254|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pleistocene||||deposition|Pleistocene|||||||WA|Yes|36483|36483|Semeniuk, V.|08-DEC-75|||Occurs as a sheet of black nodular soil between Airport Creek Formation and Christine Point Clay - probably representing a pedogenic unit deveoped on a calcareous parent (Airport Creek Formation) during a Pelsitocene low sea level stand.|Homogeneous, dark grey, muddy sand cemented by low magnesian calcite into graine-sized nodules; with medium and coarse sand grains. Unfossiliferous palaeosol.|regolith|||N||17-JAN-23
Dougalls Suite|24927|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Orosirian||||intrusion|Orosirian|1850|||||||No|41977||||||Emplaced as a series of sheets into Tickalara Metamorphics. See also Dougalls suite.|Foliated metatonalite and minor metagranodiorite with abundant inclusions of amphibolite and mafic granulite; interlayered mafic granulite and amphibolite|acid intrusive rock|metamorphosed acid igneous rock||Y||18-APR-23
Dougalls Tonalite|31881|Dougalls Granitoid|5656|||Yes|Formation, beds|Formal|Variation of published name|Described|||Dougalls Suite|24927|Orosirian|1849|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1865|0|isotopic, U/Pb-Pb/Pb ion probe|||||No|44155||||||Lissadell 1:250 000 sheet area. Dougalls Suite. Age updated by I.Sweet.|Foliated and metamorphosed hypersthene-hornblende-biotite tonalite; pyroxene amphibolite and country rock inclusions.|metamorphosed acid igneous rock|||Y||21-SEP-23
Douri Sandstone|31270|Mount Forster Sandstone|28200|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran||||||150|WA|Yes|22496|23621|Blake D.|16-SEP-93|Hocking, R.|22-APR-99|Gordon Downs 1:250 000, Ruby Plains 1:100 000 sheet area.|Lithic sandstone; micaceous siltstone, shale; minor dolomitic beds.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Doyle Dam Granodiorite|23558|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786||Witt W.K.|18-FEB-88||||K-feldspar-phyric, massive to weakly foliated, hornblende-biotite granodiorite; low Ca granite.|acid intrusive rock|||Y||17-JAN-23
Dresser Formation|36957|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Talga Talga Subgroup|17680|||Paleoarchean|3477||inferred, overlying unit|deposition|Paleoarchean|3481|3.5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1500||No|23416||||||North Shaw region.  Preliminary data suggested a 3525 Ma age, in Coonterunah Subgroup (per M. Van Kranendonk, Mar.06). Subsequent work indicates a maximum depositional age of 3481 Ma and correlation with McPhee Formation, so now part of  Talga Talga Subgroup,  Warrawoona Group (Pilbara Supergroup). (Hickman 2011 GSWA Annual Review 2009-10). Type area is in east Strelley greenstone belt.|Blue, black and white layered chert, basalt, carbonate rocks; minor felsic volcaniclastic rocks; also hydrothermal barite, evaporites and stromatolites.|non-carbonate chemical or biochemical sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Dromedary Bore Granite|79472|Dromedary Bore Granodiorite|78353|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Bunnawarra Suite|78355|Mesoarchean||||magmatic crystallisation|Mesoarchean|2945|6|isotopic||||WA|No|70770||Ivanic, T., Wyche, S. (GSWA)|09-JUN-16|||BUNGAR 100k sheet.  A new granite in the southern Murchison Domain. Age: 2945 Ma. Type area: 5km west of Dromedary Bore, lat 29deg02', long 118deg25'. Overlain by Norie Group sedimentary rocks adjacent to the Narndee Igneous Complex.|Granodiorite gneiss; locally biotite-rich with K-feldspar augen.|metamorphosed acid igneous rock|foliated metamorphic rock||Y||17-JAN-23
Duck Creek Dolomite|26528|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Wyloo Group|20715|||Orosirian|1806||inferred, overlying unit|deposition|Orosirian|2209|15|inferred, underlying unit|maximum depositional age||1000|WA|No|44729|44692|||||Top age is inferred from overlying Ashburton Formation (isotopic dates include 1829+/- 5 Ma).  Base age is very poorly constrained - underlying Mount McGrath Formation is undated (only a maximum depositional age of 2455 Ma) and dykes cutting the older Cheela Springs Basalt are 2007+/-16 Ma. 1km thick.|Thin to thick bedded, locally stromatolitic, metadolomite; metadolorudite, and minor chert and pelite.|carbonate sedimentary rock|fine grained siliciclastic rock||N||26-JUN-23
Duck Creek Supersequence|34382|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Orosirian|1953||||Orosirian|1997|||||||No|22682||||||Age: 1997-1953 Ma.|||||N||17-JAN-23
Duckhole Pool|39557|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|30-OCT-03|||Canning Basin region, but probably Holocene unit, so may not be part of Canning Basin Province.|||||N||17-JAN-23
Duerdin Group|5760|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Ediacaran|600|||deposition|Cryogenian|650||||500||WA|No|44317|45140|||||Wolfe Basin.|Polymictic conglomerate, siltstone, mudstone, lithic and feldspathic sandstone, quartz sandstone, dolomite, and tillite.|siliciclastic sedimentary rock|||N||21-MAR-23
Duerdin Group, Lower|74383|||||Yes|Subgroup|Informal|Variation of published name|Described|Duerdin Group|5760|||Cryogenian||||deposition|Cryogenian||||||||No|71267|||||||Massive matrix-supported polymictic pebble to boulder conglomerate; larger clasts striated; poorly sorted lithic sandstone and dolomitic sandstone, pebble to cobble sandstone; minor thin-bedded dolomite|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Duffer Formation|5770|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Coongan Subgroup|69683|||Paleoarchean|3465|3|isotopic, U/Pb|deposition|Paleoarchean|3477|5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||8000|WA|No|31853|31853|||||Age: 3520-3400Ma. (3465Ma).  Occurs between Talga Talga and Salgash Subgroups (Warrawoona Group).  First proposed that it should be part of Talga Talga Subgroup, but later reassigned to the Coongan Subgroup of the Warrawoona Group (Van Kranendonk Mar06). Has ages from 3477 (max depositional age) to 3463 (eruption of basal unit) Ma.|Predominantly dacitic volcaniclastic rocks; grades up to rhyolite; feldspar-porphyritic subvolcanic intrusions are common and voluminous; also pillow basalt and layered red and white sedimentary chert; metamorphosed.|metamorphosed acid igneous rock|metamorphic rock||N||26-JUN-23
Dugel Gneiss|5780|Dugel gneiss|5781|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Paleoarchean|3300||isotopic, U/Pb-Pb/Pb ion probe||Paleoarchean|3385||isotopic, U/Pb-Pb/Pb ion probe|||||No|40587||||||Narryer Terrane.|Monzogranitic and syenogranitic gneiss, in places with abundant amphibolite and metagabbro inclusions|foliated metamorphic rock|metamorphosed basic igneous rock||Y||17-JAN-23
Duluth Complex|36127|||||Yes|Group, Suite|Formal|Other new published name|Mentioned||||||||||||||||||No|23455||||||Probably a North American unit.|||||N||17-JAN-23
Dumbardo Siltstone|5795|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian||||deposition|Sakmarian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-1.|Siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Dumbie Granodiorite|36887|||||Yes|Formation, beds|Formal|Other new published name|Described|||Moorarie Supersuite|33440|Orosirian|1804|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1811|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|23527|||||||Porphyritic, fine- to medium-grained granodiorite; minor monzogranite; medium to coarse tabular phenocrysts of K-feldspar; locally magnetite and allanite bearing.|acid intrusive rock|||Y||17-JAN-23
Dumont complex|73989|||||Yes|Group, Suite|Informal|Other new published name|Mentioned||||||||||||||||||No|63712|||||||||||N||17-JAN-23
Dunnawah|35286|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Occhipinti S.|08-DEC-99|||Gascoyne region, Glenburgh 1:250 000 sheet area.|||||N||17-JAN-23
Dunnsville Granodiorite|23565|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786||W.K.Witt|18-FEB-88|||See also Dunnsville Granite.|Medium- to coarse-grained granodiorite; penetrative foliation and subhorizontal mineral lineation; sheared contacts with greenstones have subhorizontal to steep mineral lineation|acid intrusive rock|||Y||19-APR-23
Duplex Hill Group|5859|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned||||||||||||||||||No|41249|||||||||||N||17-JAN-23
Dupuy Formation|25888|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Tithonian|145|||deposition|Kimmeridgian|||||||WA|No|37306|40617||||||Marine silty claystone.|fine grained siliciclastic rock|||N||17-JAN-23
Durba Sandstone|5872|||||Yes|Formation, beds|Formal|Other new published name|Defined|Savory Group|23957|||Cambrian|500|||deposition|Neoproterozoic|550||inferred, structural relationship|||100|WA|No|33849|40089|||||Defined as equivalent to Mesoproterozoic age in 1985. A max. age of 520 Ma makes it Cambrian.|Clean quartz sandstone, minor basal conglomerate lenses and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Durlacher Supersuite|37648|||||Yes|Supergroup|Formal|Resvd name published|Defined|||||Statherian|1619|15||intrusion|Statherian|1696|20|||||WA|Yes|24544|61262|Sheppard, S.|29-OCT-02|||Name for belt of Palaeoproterozoic granites in the northern Gascoyne Complex (Maroonah and Mangaroon 1:100 000 sheet areas) - includes Pimbyana, Dingo Creek and Yangibana Granites and several unnamed units. Now extended to Discretion Granite in Milgun 1:100 000 sheet area (2010).|Metamonzogranite, granodiorite and granite; minor tonalite, syenogranite, gabbro.|acid intrusive rock|intermediate intrusive rock|continental margin arc|Y|S-type|17-JAN-23
Dwarf Well Granite|73691|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Carrington Suite|41811|Statherian||||magmatic crystallisation|Statherian|1773|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|64580||Tyler, I. (GSWA)|11-OCT-07|||For use on mapsheet WEBB; nearest town Kiwirrkurra. Outcrop locations is south of Dwarf Well. To be pub: as part of Interpreted Bedrock Geology map of WEBB 1:250K sheet/part of MACDONALD 1:250K sheet. GSWA in early 2008. Aileron Province, Arunta Orogen, North Australian Craton.|Coarse-grained biotite metamonzogranite in low scattered pavements and bouldery outcrops south of Dwarf Well.|metamorphosed acid igneous rock|||Y||17-JAN-23
Dyasons Granite|5885|||||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|30525|||||||Recrystallised leucocratic medium to fine grained biotite monzogranite with minor secondary muscovite|acid intrusive rock|||Y||22-SEP-23
Eagle Hawk Sandstone|23567|Hudson Formation|8551|||Yes|Formation, beds|Formal|Other new published name|Defined|Elder Subgroup|26535|||Middle Cambrian||||deposition|Middle Cambrian||||||210|WA|No|41840|41840|P.E.Playford|04-MAY-83||||Fine to medium micaceous and feldspathic sandstone; minor siltstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Earaheedy Group - quartz sandstone|74384|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Earaheedy Group|27144|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No||||||||Sandstone, arkose, siltstone|siliciclastic sedimentary rock|medium-coarse grained siliciclastic 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
Early Paleozoic sedimentary rocks 76521|76521|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Devonian|384|||deposition|Early Cambrian|545|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Early Paleozoic sedimentary rocks 76698|76698|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lopingian|251|||deposition|Terreneuvian||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Note: Name of unit does not match age range given - whole of Paleozoic, CEB Feb-2012]|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
East Kimberley kimberlite|5901|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40811|||||||||||Y||17-JAN-23
East Yilgarn Gneiss|5905|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|38788|||||||||||N||17-JAN-23
Eastern Gneiss|5914|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|30011||||||Albany-Fraser Province.|||||N||17-JAN-23
Eastern Goldfields Superterrane - basalt and rhyolite-dacite #83976|83976|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Equivalent to WA code A-xb-f-YEG derived from the WA IBG dataset.|Interlayered basalt and rhyolite-dacite; bimodal mafic and felsic sequence.||||N||31-AUG-23
Eastern Goldfields Superterrane - chemical sedimentary rocks #83980|83980|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-c-YEG, A-xci-o-YEG, A-xci-s-YEG, A-xci-u-YEG, A-cc-YEG, A-cci-YEG, A-ccx-YEG, A-ci-YEG, A-cib-YEG. Compare with 'banded iron formation, chert 74256' used in GA 2012 surface geology.|Undivided chert, banded chert, ferruginous chert, banded iron-formation, and brecciated chert; local mafic and ultramafic rock; siliciclastic sedimentary rock; metamorphosed.||||N||15-SEP-23
Eastern Goldfields Superterrane - felsic volcanic and volcaniclastic rocks #83981|83981|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-f-YEG, A-xf-s-YEG, A-fn-YEG, A-fnv-YEG, A-fr-YEG, A-frp-YEG, A-frt-YEG, A-fa-YEG, A-fav-YEG, A-fd-YEG, A-fdp-YEG.|Volcanic and volcaniclastic felsic rock, undivided; andesite to rhyolite, minor basaltic andesite; local fragmental textures; metamorphosed||||N||15-SEP-23
Eastern Goldfields Superterrane - gneiss #83985|83985|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-mn-YEG, A-mna-YEG, A-mnqf-YEG.|Gneiss, undivided; minor amphibolitic and quartzofeldspathic gneiss; protolith unknown||||N||14-SEP-23
Eastern Goldfields Superterrane - hornfels #83986|83986|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Equivalent to map symbol A-mex-YEG derived from the WA IBG dataset.|Pyroxenitic hornfels; protolith unknown||||N||14-SEP-23
Eastern Goldfields Superterrane - mafic intrusive rocks #83979|83979|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-o-YEG, A-og-YEG, A-xo-cib-YEG, A-mo-YEG. Compare with 'mafic intrusive rocks 74263' used in GA  2012 surface geology.|Mafic intrusive rock dominant; gabbro; may include iron formation and sedimentary rock; metamorphosed||||Y||15-SEP-23
Eastern Goldfields Superterrane - mafic volcanic and sedimentary rocks #83977|83977|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Equivalent to map symbol A-xb-s-YEG derived from the WA IBG dataset.|Interlayered mafic volcanic rock and siliciclastic sedimentary rock||||N||15-SEP-23
Eastern Goldfields Superterrane - mafic volcanic rocks #83975|83975|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-b-YEG, A-bd-YEG, A-bdp-YEG, A-bb-YEG, A-bbg-YEG, A-bbw-YEG, A-bs-YEG.|Fine- to very fine-grained mafic rock with minor ultramafic rock, undivided; basaltic andesite; porphyritic, amygdaloidal, vesicular, variolitic, spinifex and dolerite textured zones; local feldspar–hornblende or chlorite schist; metamorphosed.||||N||15-SEP-23
Eastern Goldfields Superterrane - metabasite #83978|83978|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Includes WA integrated basement geology units A-mw-YEG, A-xmws-mfs-YEG, A-mwa-YEG, A-mb-YEG, A-xmb-mg-YEG, A-mba-YEG, A-mbb-YEG, A-mbb-YEG, A-mbs-YEG.|Metamorphosed mafic igneous rock; meta-mafic volcanic rock; mafic schist interleaved with felsic schist; amphibolite; minor foliated metagranite; interlayered metasiliciclastics; locally metasomatised, hornfelsed, epidotized.||||Y||31-AUG-23
Eastern Goldfields Superterrane - metafelsite #83982|83982|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mf-YEG, A-mfs-YEG.|Metamorphosed felsic volcanic and volcaniclastic rock; quartzofeldspathic micaceous schist||||N||14-SEP-23
Eastern Goldfields Superterrane - schist #83984|83984|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-ms-YEG, A-msja-YEG.|Schist, protolith unknown; minor amphibole-bearing, ferruginous schist||||N||14-SEP-23
Eastern Goldfields Superterrane - siliciclastic metasedimentary rocks #83983|83983|||||Yes|Group, Suite|Unnamed|Unnamed published|Mentioned|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-s-YEG, A-sc-YEG, A-sh-YEG, A-ss-YEG, A-st-YEG, A-snf-YEG, A-md-YEG, A-mds-YEG, A-mdsf-YEG, A-mt-YEG, A-ml-YEG, A-mls-YEG.|Siliciclastic metasediments, undivided; includes conglomerate, sandstone, siltstone, shale, and chert; minor volcanic and volcaniclastics; metamorphosed; variably foliated; quartzofeldspathic to micaceous, schistose||||N||15-SEP-23
Eastern Goldfields Superterrane - ultramafic intrusive rocks #83972|83972|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Covers the following WA map symbols A-ma-YEG, A-a-YEG, A-ax-YEG derived from WA IBG dataset. Compare with 'ultramafic and minor mafic rocks 74475' used in GA 2012 Surface geology.|Ultramafic intrusive rock, undivided; may include pyroxenite and serpentinite; metamorphosed.||||Y||15-SEP-23
Eastern Goldfields Superterrane - ultramafic rocks #83973|83973|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following WA map codes from WA IBG: A-u-YEG, A-xu-bb-YEG, A-uk-YEG, A-up-YEG. Compare with 'ultramafic and minor mafic rocks 74475' used in GA 2012 surface geology.|Ultramafic volcanic rock dominant; may include komatiite and peridotite; minor pyroxenite; metamorphosed||||N||15-SEP-23
Eastern Goldfields Superterrane - ultramafic schist #83974|83974|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|2960|||||||No|||||||Incorporates the following map symbols from WA IBG: A-mu-YEG, A-mus-YEG. Compare with 'ultramafic and minor mafic rocks 74475' used in GA 2012 surface geology.|Metamorphosed ultramafic rock; includes talc–chlorite(–carbonate) and tremolite–chlorite schist; minor serpentinite and mafic schist; may include layered metamafic rock, amphibolite, and graphitic schist||||N||31-AUG-23
Eastern Lennard Shelf Lamproite|5915|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Eastern Leucocratic Granitoid|37105|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Tickalara Metamorphics|18130||||||||||||||||No|60724||||||Probably same unit as Eastern Leucocratic granite?|||||Y||17-JAN-23
Eastman Granite|21728|||||Yes|Formation, beds|Formal|Resvd name published|Described|||San Sou Suite|31896|Paleoproterozoic|1800|||intrusion|Paleoproterozoic|1804|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|50437||Sheppard S., Tyler I.M., Griffin T.J.|18-NOV-94|||East Kimberley region.|Fine to coarse grained leucocratic biotite syenogranite, monzogranite and monzonite.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Eaton Sand|27268|Eaton sand|5938|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Pleistocene||||deposition|Pleistocene|||||||WA|No|40367|40367|Semeniuk, V.|18-JAN-80|||Max. thickness: >10m. Type section destroyed by roadworks.|Of laminated to bedded yellow to orange quartz sand, medium and coarse sand-sized grains; interstitial fine sand, minor clay also occur; contains scattered charcoal, trace fossils (burrows and root casts) and vegetative debris; unfossiliferous|sediment|||N||17-JAN-23
Echuca Shoals Formation|5943|||||Yes|Formation, beds|Formal|Other new published name|Described|Bathurst Island Group|1249|||Aptian|114|||deposition|Valanginian|133|||||||No|42053||||||See also Echuca Shoals (abbreviated version). Includes hydrocarbon source rocks.|Predominantly an extensive claystone; organic-rich, oil-prone marine shale.|fine grained siliciclastic rock|organic rich sedimentary rock||N||17-JAN-23
Edamurta Gabbro|78998|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean||||intrusion|Neoarchean|2795||inferred|||||No|70769||Ivanic, T. (GSWA)|07-JAN-15|||Used in Murchison Domain updates in 2015. Named after Edamurta Range (also type area), Mellenbye1:100k sheet area. 28deg 34'S 116deg28'E. Intrusive into possible Polelle Group rocks.|Layered gabbroic rocks with pyroxene cumulate horizons and gabbronorite locally dominant; minor dolerite; metamorphosed|metamorphosed basic igneous rock|||Y||17-JAN-23
Eddy Suite|75622|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Statherian|1660||||Statherian|1665|4||||||No|67380||Spaggiari, C. (GSWA)|24-FEB-10|||Zanthus 1:250k sheet SH51-15 , ?Zanthus 1:100k sheet 3635. Metagranite, quartz metadiorite and metagabbronorite. Please note that the unit occurs in remote country and there are no geographic features in the vicinity, other than Harris Lake.  To be published = 2010 WA state map 1:500k layer. Published GSWA Record 2011/23 p22 [to be indexed ASAP]. These rocks have been dated at c. 1660 Ma.|Heterogeneously deformed pegmatites and granites. Ranges from megacrystic metamonzogranite and equigranular metasyenogranitic gneiss, to rapakivi-textured metagranodiorite and metagabbronoritic rocks. Inferred hybrid products. A-type.|metamorphosed acid igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Edell Number I Trachyte|5956|Edel Volcanics""|5955|||Yes|Formation, beds|Informal|Unknown or process pending|Described|||||||||eruption|||||||||No|40811||||||||intermediate volcanic rock|||N||17-JAN-23
Edmund Group|34906|Edmund Subgroup|26264|||Yes|Group, Suite|Formal|Variation of published name|Defined|Bangemall Supergroup|34951|||Calymmian|1462|3|inferred, intrusive relationship||Statherian|1620||inferred, underlying unit|||4000|WA|No|22905|24183|||||Age: c. 1620Ma-c.1465Ma. Together with the Collier Group it overlies the Gascoyne Complex. Edmund Basin.|Mostly fine-grained siliciclastic and carbonate sedimentary rocks: siltstone, sandstone, conglomerate, dolostone, stromatolitic dolostone, carbonaceous siltstone, chert; thick dolerite and gabbro sills.|siliciclastic sedimentary rock|carbonate sedimentary rock|passive margin|N||17-JAN-23
Edna May Gneiss|35377|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean|||||Archean||||||||No|23200||||||name may be obsolete?|Tonalitic orthogneiss-gneiss.|high grade metamorphic rock|||N||17-JAN-23
Eel Creek Formation|23572|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Tarcunyah Group|31872|||Neoproterozoic|820|||deposition|Mesoproterozoic|1318|7|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||500||No|44443||Lord, J.H.|30-MAY-75|||Age poorly constrained. May be late Mesoproterozoic [RefID 70826, 2016]. Pilbara Craton.|Mudstone, shale, siltstone, sandstone; minor glauconitic and tuffaceous sandstone, rhyolite tuff; basal hematite-clast conglomerate, ferruginous shale; dolerite sills.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Eelya Suite|74814|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean||||magmatic crystallisation|Neoarchean|2759|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. High-HFSE.|Biotite granodiorite; weakly metamorphosed. High HFSE geochemical characteristics.|acid intrusive rock|||Y||17-JAN-23
Eerada Formation|5995|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Archean||||deposition|Archean|||||||WA|No|29688|29688||||||||||N||17-JAN-23
Egan Formation|25891|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Louisa Downs Group|10676|||Ediacaran||||deposition|Ediacaran||||||80|WA|No|44397|48927|||||In the Louisa Basin.|Tillite, conglomerate and quartz sandstone; upper part dolomite and limestone. Capped with a persistent pink-dolomitic unit.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Egret Formation|23573|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Berriasian||||deposition|Upper Jurassic||||||||No|41732||Middleton M.|24-SEP-87|||See also GSWA Memoir 3 1990 (advice from R.Hocking 10-12-92).|Condensed marine mudstones.|fine grained siliciclastic rock|||N||17-JAN-23
Eighty Mile Beach Coquina|21735|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||3|WA|Yes|64449|64449|Semeniuk, V.|30-JAN-95|Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.  Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 3680 +/- 210 yrs BP.|Light-coloured, laminated, bedded to cross-laminated, polymictic shell gravel, shell grit, shelly sand, and some coarse and medium sand layers.|sediment|||N||17-JAN-23
Eileen Member|78301|||||Yes|Member, phase|Reserved|Reserved|Reserved|Boab Formation|78346|||||||deposition|||||||||No|||Allen, H. (GSWA)|16-AUG-13|||Basal mudstone member of the Boab Sandstone. Occurs in subsurface central Canning Basin (Barbwire Terrace) wheretobepublished = GSWA report A revised subsurface stratigraphy for the Central and Southern Canning Basin.GSWA Report to be published early 2014. Map sheet=Dummer.|Mudstone|fine grained siliciclastic rock|||N||17-JAN-23
Elang Formation|34215|||||Yes|Formation, beds|Formal|Other new published name|Described|Flamingo Group|6726|||Oxfordian||||deposition|Callovian||||||150||No|5952|||||||Quartzose, very fine- to fine-grained, moderately well-sorted sandstones with interbedded siltstone and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Elder Subgroup|26535|Elder Sandstone|6040|||Yes|Subgroup|Formal|Unknown or process pending|Described|Goose Hole Group|23629|||Late Cambrian|||||Middle Cambrian||||||370||No|41840||||||Of the Goose Hole Group. Includes: Eagle Hawk Sandstone, Overland Sandstone.|Feldspathic sandstone; minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Elephant Rocks basaltic dyke|83643|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||Tonian|942|11|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|73480||||||N-NE trending, shallowly dipping sill. Age based on one grain. See also Elephant Rocks dyke. Intrudes a biotite metagranite with a minimum cooling age of ca 970 Ma.Suggested to be associated with the Early Cretaceous Greater Kerguelen large igneous province. Name apparently used interchangeably with Elephant Rocks dyke.|Microporphyritic ophitic basalt dyke, unmetamorphosed.|basic volcanic rock|||Y||05-FEB-23
Eley Monzogranite|39603|Eley Adamellite|24264|||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2929|||intrusion|Mesoarchean|2930|||||||No|24532|||||||Porphyritic biotite monzogranite; numerous K-feldspar phenocrysts; weakly foliated; metamorphosed|acid intrusive rock|||Y||19-APR-23
Elgee Siltstone|6057|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kimberley Group|9572|||Statherian|1784||inferred, intrusive relationship|deposition|Orosirian|1805||||216|250||No|44366||||||Listed as in Halls Creek Province, but references say Kimberley Basin. See also Elgee Formation - age from SHRIMP dating of xenotime.Kimberley Basin, North Australian Craton.|Massive red-brown siltstone with fine-grained micaceous, ferruginous and feldspathic sandstone interbeds; basal sequence in places of stromatolitic, sandy or oolitic dolomite, shale, micaceous siltstone and fine grained sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Eliassen Formation|75545|Eliasson Formation|23576|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Oxfordian|||biozone|deposition|Oxfordian|||biozone|||||No|60379||Hocking, R.M.|18-JAN-93|||Fully described in GSWA Record 1992/7, 93/27545, where it was accidentally misspelt as Eliasson Formation.|||||N||17-JAN-23
Elimberrie Formation|6061|Elimberrie Beds|6059|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Proterozoic||||deposition|Proterozoic||||||||No|42710||||||See also Elimberrie Bioherms.||siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Eliot Range Dolomite|30279|Bungle Bungle Dolomite|24791|||Yes|Formation, beds|Formal|Resvd name published|Defined|Ruby Plains Group|30278|||Cryogenian|||biozone|deposition|Tonian|||biozone|||300|WA|Yes|43299|23621|Blake D.|30-APR-96|Hocking, R.|22-APR-99|East Kimberley, Gordon Downs 1:250 000 sheet area. Overlying & underlying units may be conformable or disconformable. Previously mapped as part of Bungle Bungle Dolomite. Distinguished on basis of stromatolite fauna. Correlates with Heavitree Quartzite and Bitter Springs Formation (Amadeus Basin). See also Eliot Range Formation. Age ~850-800 Ma based on stromatolite fauna.|Dolomitic mudstone, siltstone and sandstone; minor dolomitic breccia and black chert; stromatolitic.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Eliza Formation|76742|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Palgrave Group|76740|||Stenian|1047||inferred|eruption|Stenian|1077||inferred, intrusive relationship|||||No|69153||Howard, H.M. (GSWA)|17-JAN-12|||Talbot 1:250k sheet SG52-09. To be published: Werner, M, Howard, HM, Smithies, RH, Aitken, ARA and Medlin C 2012, Mount Eveline, WA Sheet 4345: Geological Survey of Western Australia, 1:100 000 Geological Series. See also:Smithies, RH, Werner, M, Howard, HM and Kirkland, CL 2019, Eliza Formation (P_-PGe-xfr-sp): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 16 August 2019. <www.dmp.wa.gov.au/ens>|Rhyolite lavas, subvolcanic sills, and pyroclastic rocks, locally interlayered with volcanic sandstones and siltstones and minor basalt.|acid volcanic rock|basic volcanic rock||N||17-JAN-23
Elizabeth Hill Supersuite|68738|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Mesoarchean|3060|||intrusion|Mesoarchean|3080|||||||No|64174||Van Kranendonk, M.|13-APR-05|||For use on PINDERI HILLS map sheet; near Dampier.  Named for Elizabeth Hill Mine.  Reserved name published as Elizabeth Hill Suite.  Age: c.3068Ma.|Tonalite to syenogranite; local greenstone xenoliths; metamorphosed, with minor orthogneiss.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Ellawarrina Monzogranite|36899|||||Yes|Formation, beds|Formal|Other new published name|Defined|Yule Granitoid Complex|33198|Sisters Supersuite|68741|Archean||||intrusion|Archean|3165|||||||No|23598|23598|||||Type Locality: 21 30' 00''E, 117 58' 10''S.  Omitted from Pilbara lithostrtigraphy revision (GSWA Record 2006/15), but now tentatively placed in the Sisters Supersuite (M. Van Kranendonk, GSWA, 2008).|Biotite - bearing monzogranite|acid intrusive rock|||Y||17-JAN-23
Ellendale 11 Lamproite|6075|Ellendale 11 lamproite|6076|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 16 Lamproite|24949|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 2 Lamproite|6077|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 23 Lamproite|6078|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 31 Lamproite|6079|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 38 Lamproite|6080|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 7 Lamproite|6082|Ellendale 7 lamproite|6083|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale 9 Lamproite|6084|Ellendale 9 lamproite|6085|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158||||||Informally named unit of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08).|||||Y||17-JAN-23
Ellendale Formation|6087|Ellendale Beds|6086|||Yes|Formation, beds|Formal|Variation of published name|Described|Oscar Range Group|14667|||Neoproterozoic||||deposition|Mesoproterozoic||||||||No|42710||||||This name takes precedence over the informally named Elendale Lamproite (numbered) units of the Miocene Ellendale Lamproite Province or Field (email R.Hocking 20/11/08). Cryogenian as age for parent unit Oscar Range Group in the 2006 edition of GSWA's 1:500k Bedrock Geology of WA.|Cross bedded and rippled grey-green to brown phyllitic sandstone, feldspathic sandstone and minor siltstone and cobble and boulder conglomerate, overlain by laminated siltstone with occasional hematite lenses|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Ellington Granite|39349|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean|2662|3|isotopic, Pb/Pb|||||No|24091||||||||acid intrusive rock|||Y|I-type|17-JAN-23
Ellis Sandstone|6108|Ellis Formation|28531|||Yes|Formation, beds|Formal|Other new published name|Defined|Pertaoorrta Group|15091|||Early Cambrian|530||inferred|deposition|Ediacaran|580||inferred|||500||No|48842|48842|||||Not to be confused with Ellis Formation in the Antarctic. Interfingers with Sir Frederick Conglomerate.|White to pale brown, cross-bedded, medium-grained quartz sandstone and pebbly sandstone; may be kaolinitic; minor interbedded calcareous sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Elm Sandstone Member|79737|||||Yes|Member, phase|Informal|Other new published name|Described|Vulcan Formation|19148|||Kimmeridgian||||deposition|Oxfordian||||||||No|||||||Recognised in Vesta-1 from 3342.0m to 3479m as a series of blocky sandstones ([each] <10m thick), within homogeneous claystone of the Lower Vulcan Formation. Information from: Ellis, G., Bond, A., (2006). AC/P-21 : VESTA-1 WELL COMPLETION REPORT (INTERPRETIVE DATA), Eni Australia Ltd,  p27 in particular. Also found in Vesta-2. Important for oil and gas discoveries.Found in Swan Graben and Eclipse high. See also Elm Sandstone.|Well cemented quartz arenites, dominantly fine to medium, with common loose very fine to fine quartz grains, poorly sorted, sub-angular to sub-rounded, with trace calcareous cement and trace brownish grey argillaceous matrix|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Elma Conglomerate|68859|Mount Elma Conglomerate|32739|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Famennian||||deposition|Frasnian||||||||No|44231||Hocking, R.|04-MAY-05|||To replace the obsolete Mount Elma Conglomerate. Interbedded locally with Pillara, Nullara and Sadler Limestones, and Virgin Hills Formation|Quartzite-dominated cobble to boulder conglomerate; minor coarse-grained arkosic sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Elsa Sandstone Member|23577|Elsa Sandstone|6113|||Yes|Member, phase|Formal|Variation of published name|Fully described|Worral Formation|24124|||Wenlock||||deposition|Llandovery|||inferred, underlying unit||||WA|No|40837||P.Lehmann|20-JAN-84||||White, pale grey or pale brown, well-sorted, porous, dominantly quartzose sandstone, typically fine- to medium-grained but locally including coarse and granular beds; locally massive or with interbeds of mudstone and minor carbonate.|siliciclastic sedimentary rock|||N||17-JAN-23
Elsie Creek Tonalite|73382|Elsie Creek granite|32596|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3291|4||intrusion|Paleoarchean|3299|||||||No|65724|65829|Hickman, A.|28-MAY-07|||For use on map sheet 3055; nearest town is Nullagine. To be published: YILGALONG 1:100K Geol. Series map (2005). Defined in Yilgalong Explan. Notes to be pub: June 2007. Intrusion of Emu Pool Supersuite forming most of Yilgalong Granitic Complex.|Metatonalite and metagranodiorite; local sills of monzogranite and orthogneiss xenoilths; strongly foliated to gneissic|acid intrusive rock|metamorphosed acid igneous rock||Y||20-APR-23
Elvire Formation|6117|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran|639|47|isotopic, Rb/Sr||100|390|WA|No|44317|45047|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidean age. Thin bedded argillite; minor quartz sandstone.|Thinly bedded to laminated, partly micaceous, red-brown shale and green siltstone with minor thinly bedded lithic and quartzose sandstone mainly near the top and bottom.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Emanuel Formation|25894|Emanuel Limestone|6124|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Prices Creek Group|15573|||Middle Ordovician||||deposition|Lower Ordovician||||||775|WA|No|44404|45153|||||See also Lexicon.|Shallow-marine siltstone, shale and limestone, with lesser sandstone.Fossiliferous.|carbonate sedimentary rock|fine grained siliciclastic rock||N||26-JUL-23
Emerald Mine Greenstone Complex|40510|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Archean|||||Archean||||||||No|24531||||||Informal name for a greenstone belt which apparently contains no Strelley Pool Formation, as do many of the other greenstone belts in the East Pilbara Terrane - 11 out of 20 have identified Strelley Pool Formation within them. See also the informally presented Emerald Mine greenstone complex.|||||N||17-JAN-23
Emeriau Sandstone|28532|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Neogene||||deposition|Lower Cretaceous||||||30|WA|No|44998|45153|||||See also lexicon.  See also the misspelt Emiriau Sandstone.|Fine- to coarse-grained poorly sorted sandstone; conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Emma Member|23579|||||Yes|Member, phase|Formal|Resvd name published|Described|Calypso Formation|23457|||Callovian||||deposition|Callovian||||||||No|42615||Hocking R.M.|18-JAN-93|||Described in GSWA Record 1992/7, 93/27545.|||||N||17-JAN-23
Empress Formation|6150|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Precambrian||||deposition|Precambrian|||||||WA|Yes|30766|30766|Fitton M.J., Horwitz R.C., Sylvester G.|23-JUN-75|WA SNSC|01-APR-76|West Pilbara. Unrelated to the geographically seperate Empress Shale (member level) of the Yilgarn Formation.|||||N||17-JAN-23
Emu Point Member|76051|||||Yes|Member, phase|Formal|Other new published name|Described|Wunaamin Miliwundi Sandstone|81985|||Statherian||||deposition|Orosirian||||||||No|64748||||||Previously of King Leopold Sandstone, but this unit has changed its name (in 2020) to Wunaamin Miliwundi Sandstone.|Poorly-sorted quartz-pebble and sandstone-boulder conglomerate; coarse-grained sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Emu Pool Supersuite|68766|Emu Supersuite|69687|||Yes|Supergroup|Formal|Resvd name published|Described|||||Paleoarchean|3290|||intrusion|Paleoarchean|3324|||||||No|65724||Van Kranendonk, M.|20-APR-05|||For use on SPLIT ROCK sheet; near Marble Bar. Includes some 19 granites. Previously published as Emu Supersuite (GSWA Annual Review 2003-04: Van Kranendonk et al, "Event stratigraphy..."). Genetically related to the Wyman Formation. Not related to Emu Suite in Queensland. In East Pilbara Terrane.|Monzogranite, hornblende-biotite monzogranite, syenogranite, tonalite, granodiorite, mafic tonalite, quartz diorite|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Emull Gabbro|34449|||||Yes|Formation, beds|Formal|Other new published name|Described|||Sally Downs Supersuite|31785|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|23601||||||Part of the Bow River batholith. Age: c. 1835-1805Ma.|Medium to fine grained gabbro, quartz gabbro and tonalite; locally extensively veined by granitic rocks.|basic intrusive rock|||Y||17-JAN-23
Enacheddong Dolomite|25897|Enacheddong Formation|6169|||Yes|Formation, beds|Formal|Variation of published name|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|43056|41669||||||Dolomite, dolarenite, shale, chert|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Enderby Formation|6177|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Dingo Group|5509|||Middle Jurassic||||deposition|Middle Jurassic||||||||No|31604|||||||||||N||17-JAN-23
Eneabba Formation|29284|Eneabba Member|6181|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Toarcian|||inferred, biostratigraphic correlation|deposition|Rhaetian|||inferred, biostratigraphic correlation|||854||No|42687|43347|||||Formerly of Cockleshell Gully Formation (name now abandoned) as Eneabba Member.|Feldspathic sandstone interbedded with local minor conglomerate and multicoloured claystone and siltstone; rare coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Eneabba Sequence|79245|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Lower Jurassic|||||Lower Jurassic||||||||No|70097||||||Offshore Perth Basin. See also Eneabba Formation.||fine grained siliciclastic rock|||N||17-JAN-23
Enga Sandstone|6185|Enga Formation|6184|||Yes|Formation, beds|Formal|Variation of published name|Defined|Langfield Group|10161|||Tournaisian||||deposition|Tournaisian||||||160|WA|No|44965|41864|||||See also Lexicon. Max. thickness: <150m. Formerly called "Snowie Sandstone"|Well sorted, medium-grained quartz sandstone, calcareous in part, siltstone, shale, quartzic limestone; fossiliferous.|siliciclastic sedimentary rock|||N||17-JAN-23
Enokurra Sandstone|6199|Enokurra Grit|32756|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|34203|36293||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Enterprise Dolerite|69188|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|60627||||||Of the Grants Patch Group or Intrudes the Garnts Patch Group?||basic intrusive rock|||N||17-JAN-23
Eramurra Monzogranite|68508|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2982|5||intrusion|Archean|2982|5||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Also, to be used on FORTESCUE map sheet; nearest town Karratha. Age: 2982+/-5Ma.|Seriate biotite monzogranite containing mafic schleiren and veins of pegmatite. Composite, including pegmatite veins of Sisters Supersuite rock.|acid intrusive rock|||Y||17-JAN-23
Erayinia Granite|82250|Erayinia Granitic Suite|75274|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|2660||inferred|magmatic crystallisation|Neoarchean|2660|5|isotopic|magmatic crystallisation||||No|||||||Used in GSWA Interpreted Bedrock Geology 2020 dataset. Probably replaces Erayinia Granitic Suite. Distinct phase recognised: Quartz monzonite; commonly porphyritic.This is the part that has been isotopically dated.|Syenite to monzogranite; hornblende or clinopyroxene bearing; massive to moderately foliated; strong shearing in mafic enclaves.|intermediate intrusive rock|||Y||17-JAN-23
Eremophila Member|78344|||||Yes|Member, phase|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Allen, H. (GSWA)|19-AUG-13|||Replacing the informal WMC term eremophila red beds, exists in petroleum wells of the Barbwire Terrace, Canning Basin. wheretobepublished = A Revised Subsurface Devonian Stratigraphy for the Central and Southern Canning Basin. GSWA Report to be published early 2014. Map sheet = Dummer. Unit in ? Formation (TBA).|||||N||17-JAN-23
Erica Sandstone|6229|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Redcliff Pound Group|15983|||Cambrian|||inferred|deposition|Ediacaran|||inferred||400|700|WA|Yes|29809|45140|Blake D.H.|15-MAR-73|||For recent update see: Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35.|Shallow marine, well sorted, mainly fine to medium grained, sublithic and minor quartz sandstone, siltstone, shale and glauconitic sandstone; cross bedded, ripples; minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Erong Granite|33441|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic|1800|||||||No|23781||Tyler I.|09-NOV-98|||Gascoyne region.|Medium- to coarse-grained muscovite-biotite-garnet monzogranite, granite and pegmatite.|acid intrusive rock|||Y||17-JAN-23
Errabiddy Sandstone|6243|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Badgeradda Group|863|||Stenian||||deposition|Stenian||||||||No|48823|45015|||||Changed to Errabiddy Formation in 1997 - 2001 period, but name appears to have reverted to Sandstone by 2006. Age ~1055 Ma. Geological Province: Badgeradda Basin.|Feldspathic sandstone; minor pebble conglomerate lenses.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Erskine Sandstone|6256|Erskine Series""|6257|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Ladinian|||inferred, biostratigraphic correlation|deposition|Olenekian|||inferred, biostratigraphic correlation||255|270|WA|No|44479|45153|||||Of Guppy (1952). See also Lexicon.|Fine-grained sandstone; lesser sandy shale, minor conglomerate, siltstone; plant macrofossils and palynomorphs.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||12-SEP-23
Esaw Monzogranite|21754|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sophie Downs Suite|41468|Orosirian|1910|||intrusion|Orosirian|1910|||||||No|44693||Griffin T.J. & Tyler I.M.|09-DEC-92|||East Kimberley Region. Kimberley Province. Age: c.1910Ma.|Leucocratic biotite-muscovite monzogranite and garnet-muscovite monzogranite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Esko Bed|77579|||||Yes|Bed|Informal|Other new published name|Briefly described|Virgin Hills Formation|19137|||Frasnian|||||Frasnian||||||||No|66127||||||Includes trilobites and ammonoids.|A white to yellowish-grey scutelluid marker bed|sedimentary rock|||N||17-JAN-23
Esperance Supersuite|78596|Esperance Granite|30533|||Yes|Supergroup|Formal|Variation of published name|Described|||||Stenian|1138|38|isotopic, U/Pb-Pb/Pb ion probe||Ectasian|1276|6||magmatic crystallisation||||No|65487||||||Age ~1140 Ma. Spatial extent not well-constrained. Presently (2009) confined to Nornalup Zone.|Weakly to moderately deformed and recrystallised granite; even grained or porphyritic|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Estaughs Formation|6283|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mount House Group|12803|||Ediacaran||||deposition|Cryogenian||||||||No|44366|||||||Purple to grey fine to medium grained micaceous sandstone interbedded with green siltstone, with tabular cross-bedded blocky white orthoquartzite at the top|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Eucla Group|6345|Eucla Limestone""|24962|||Yes|Group, Suite|Formal|Unknown or process pending|Fully described|||||Middle Miocene|||||Lutetian||||||||No|65942||||||Said to include the Wilson Bluff Limestone and Nullarbor Limestone in the Ooldea Explan Notes (published 2007, but written earlier), but this grouping has been rarely used by GSWA since it was first established by them in 1970, and has more recently proved to include a significant hiatus. The name is likely to have been obsolete since the late 1990s.|Marine clastics and carbonates deposited offshore.|carbonate sedimentary rock|||N||17-JAN-23
Eundynie Group|6368|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Lutetian|38|||deposition|Early Eocene|50|||||||No|71788|||||||Limestone, siliciclastic rocks (locally spongolitic, bituminous, calcareous, or bioclastic), sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Eurada Gneiss|31770|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Paleoarchean|3400||||Paleoarchean|3500|||||||No|43835|||||||Monzogranitic to tonalitic gneiss with inclusions of Meeberrie Gneiss and Dugel Gneiss.|foliated metamorphic rock|acid intrusive rock||Y||17-JAN-23
Eureka Dolerite|21760|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|||||50|220||No|69035||Clout J.M.F., Cleghorn J.H., Eaton P.C.|15-MAR-89||||Weakly differentiated dolerite sill; minor granophyric zone; ophitic textures; subordinate quartz; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Euro Basalt|27151|Euro Formation|73846|||Yes|Formation, beds|Formal|Other new published name|Defined|Kelly Group|69691|||Paleoarchean|3335|||eruption|Paleoarchean|3350||||5000|9400|WA|No|31309|31309|||||Reassigned to new subgroup of Warrawoona Group - Kelly Subgroup because this thick basaltic formation marks the beginning of a new volcanic event. Previously this was included as the top unit of Salgash Subgroup in the lower section of the group. Thickness on NORTH SHAW sheet : 9.4km. Kelly Subgroup now (2006) upgraded to Kelly Group of Pilbara Supergroup (by GSWA).|Basalt, chert, dolerite, komatiitic basalt, komatiite, amphibolite, basaltic fragmental rock, gabbro, ultramafic to mafic schist, carbonate rock, felsic tuff, shale, sandstone, quartzite, metapyroxenite, serpentinite|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||26-JUN-23
Evaporation Monzogranite|79352|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600|||intrusion|Mesoarchean|3010|||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies across Bardoc 1:100K map sheet area. Named from the Evaporation mining camp. Within GSWA mindex GIS public domain layers. To be published = GSWA digital release 2016.|Metamonzogranite; foliated to gneissic, and equigranular to sparsely porphyritic.|metamorphosed acid igneous rock|||Y||20-AUG-23
Ewington Coal Measures|6435|Ewington Member|6436|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collie Group|4345|||Kungurian||||deposition|Sakmarian||||||||No|42711|42711|||||(Le Blanc Smith, 1993). Described as Collie Subbasin, Southern Perth Basin (2008)|Interbedded poorly sorted feldspathic sandstone, carbonaceus shale, coal; conglomerate.|organic rich sedimentary rock|||N||23-MAR-23
Exmouth Sandstone|6446|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Holocene||||deposition|Piacenzian||||||12|WA|No|44959|||||||Sandstone, cross-bedded quartzose calcarenite, minor pebble conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Fair Adelaide Syenogranite|6467|Fair Adelaide Granite|23586|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786|||||||Medium-grained, equigranular, massive syenogranite; contacts discordant with greenstones and early foliation in granitic rock|acid intrusive rock|||Y||21-APR-23
Fairfield Group|6483|Fairfield Formation|26545|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Tournaisian|347|||deposition|Famennian||||||900|WA|Yes|46794|45143|Druce E.C., Radke B.M.|13-APR-76|WA SNSC|13-MAY-76|1976 redefinition of Fairfield Beds. Boundaries with underlying units may be diachronous.|Fossiliferous limestone, shale, siltstone, sandstone, dolomite; shallow marine deposits.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Famennian reef complexes, marginal slope and basin facies 80954|80954|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Famennian|||biozone||Famennian|||biozone|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.   Lennard Shelf, Canning Basin. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Limestone, calcareous sandstone and mudstone; lesser siliciclastic sandstone and conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Famennian reef complexes, platform facies 80955|80955|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Famennian|||biozone||Famennian|||biozone|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Includes Windjana and Nullara Limestones.Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Limestone, lesser sandstone and siltstone, bedded (backreef) to massive (reef).|carbonate sedimentary rock|||N||17-JAN-23
Fargoo Tillite|25905|||||Yes|Formation, beds|Formal|Other new published name|Defined|Duerdin Group|5760|||Ediacaran||||deposition|Cryogenian||||||100|WA|No|44317|45047|||||Defn on Tech File SE/52-6.   Correlated with Olympic Formation. Possibly equivalent to [other?] diamictite of the Duerdin Group. See also Fargoo Formation. Wolfe Basin.|Diamictite, tillite, locally abundant dolostone clasts, dolostone, dolomite, conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Farrel Quartzite|70125|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Gorge Creek Group|27160|||Mesoarchean|2940||||Mesoarchean|3066||inferred|maximum depositional age||1000|WA|No|63441|63441|Van Kranendonk, M. (GSWA)|09-MAR-06|Hocking, R.|03-MAY-06|Previously assigned to Corboy Fm. (now part of Soanesville Gp. overlying this group). Named for Farrel Well, COONGAN 1:100 000 sheet. For widespread quartzite at base of the 3.0Ga Gorge Creek Group. Age: <c.3200Ma and >c.2940Ma. Within De Grey Supergroup.|Quartz sandstone and quartzite; locally fuchsitic; minor conglomerate and chert; metamorphosed|medium-coarse grained siliciclastic rock|||N||21-APR-23
Faure Formation|31386|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Devonian|||inferred|deposition|Lochkovian|||inferred, geological correlation|deposition||150|WA|No|1943||||||See also Iasky and Mory (1999). GSWA Report 69 p10-11, and Gorter et al (1994) WABS p569-588. The rocks that form this unit were previously considered to be in the topmost Dirk Hartog Formation and the basal Kopke Sandstone of Hocking (1987). The base of the unit is a type 1 sequence boundary. Upper boundary not well controlled.|Reddish silty sandstones, siltstones and claystones. Angular carbonate clasts (probably reworked from top of underlying Ajana Formation).|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Federal Dolerite|21775|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||||||intrusion||||||85|100||No|69035||Clout J.M.F., Cleghorn J.H., Eaton P.C.|15-MAR-89||||Weakly differentiated gabbroic sill.|basic intrusive rock|||Y||17-JAN-23
Fenelon Formation|6577|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Bathurst Island Group|1249|||Campanian|77|||deposition|Campanian|82|||||||No|42053|||||||Calcareous claystone, marl. Some medium grained sandstone in Caswell sub-.basin|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Ferro Gully Shale|24978|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|33687||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Feysville Basalt|84116|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||Neoarchean||||||||No|||Sapkota, J. (GSWA)|16-MAR-23|||Map sheets = Kalgoorlie and Kanowna. Locally pillowed basalt. It is a geochemically distinct unit that locally overlies the Paringa Basalt. Where to be published: GSWA East Yilgarn Package and ENS. Late 2023.|Locally pillowed basalt.||||N||12-OCT-23
Fields Find Igneous Complex|79008|Fields Find Group|23590|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Boodanoo Suite|74954|Neoarchean|||||Mesoarchean|2799||inferred|||||No|69583||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Fields Find Mine, Ninghan 1:100k sheet area. 29deg02'S 117deg15'E. Type area: northern Ninghan map sheet. Intrusive into inferred Norie Group banded iron formation; overlain by Polelle Group basaltic rocks. Published on Thundelarra (Zibra, I., Ivanic, T.J., Chen, S.F., 2017, Thundelarra, WA Sheet 2340: Geological Survey of Western Australia, 1:100 000 Geological Series). Originally of Meeline Suite.|Peridotite, locally hornblende bearing, and pyroxenite  at the base of the intrusion with gabbro, hornblende gabbro, leucogabbro, and dolerite towards the top; metamorphosed.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Fifima Sandstone|80938|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||Neoarchean|2690||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|72049||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Fifty Mile Tank Gneiss|26551|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean|||||Archean|2664|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|42724||||||See also misspelling 50-mile Tank Gneiss.|Quartzofeldspathic gneiss, minor monzogranite, mafic to ultramafic enclaves and deformed pegmatite veins common; high-Ca group.|foliated metamorphic rock|metamorphosed basic igneous rock||N||17-JAN-23
Fig Tree Gneiss|39513|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tambina Supersuite|68742|Paleoarchean|3416|13|||Paleoarchean|3448|8|||||WA|No|65726||Williams, I.|23-OCT-03||||Banded metatonalite, metagranodiorite, metamonzogranite, and local metatrondhjemite, monzogranite and syenogranite gneiss, and migmatite|metamorphosed acid igneous rock|high grade metamorphic rock||Y||17-JAN-23
Fingoon Package|73451|||||Yes|Subgroup|Informal|Other new published name|Described|Rudall Complex|26880|||Statherian|1680|29|inferred, intrusive relationship|metamorphism|Statherian||||||||No|65454||||||Includes Fingoon Quartzite, Larry, Butler Creek and Poynton Formations. Unit for time space plotting (EG, HG 2007). Songfa Liu to use this on 'Pre-Permian solid geology map of the Paterson area' CEBJun-2009. Age control poor. Originally shown as Archean to Mesproterozoic. In 2009 shown as Statherian.|Metasedimentary succession composed of feldspar-rich paragneiss, muscovite-schist and quartzite|metasedimentary siliciclastic rock|foliated metamorphic rock||N||17-JAN-23
Fingoon Quartzite|21787|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||Statherian||||deposition|Statherian|1791|10|isotopic, U/Pb||1500|||No|43348||Bagas L., Hickman A.|10-MAR-93|||Used in the Rudall 1:250 000 sheet area.|Massive or layered micaceous quartzite with local quartz-muscovite schist and psammitic gneiss|metasedimentary siliciclastic rock|foliated metamorphic rock||N||17-JAN-23
Finlay Range Gabbro|6664|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|30389||||||See also informal Finlay intrusion.||basic intrusive rock|||Y||17-JAN-23
Finlayson Member|31761|Finlayson Sandstone Member|29995|||Yes|Member, phase|Formal|Variation of published name|Redefined|Juderina Formation|9050|||Paleoproterozoic|2173|64|inferred, overlying unit|deposition|Paleoproterozoic||||||100||No|62353|65419|||||Supersedes Finlayson Sandstone Member (redefined 1993). Renamed the Finlayson Member (Occhipinti et al. 1997) because of its heterolithic nature. More detailed 2017 Murchison lith description replaced by generic description used in GSWA IBG 2020, and earlier datasets|Quartz arenite; rippled, planar or cross bedded; minor pebble conglomerate and intercalated siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Fish Hole Dolerite|6681|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|44317||||||Defn on Tech File SE/52-5.|Epidotized amygdaloidal dolerite.|basic intrusive rock|||Y||21-SEP-23
Fishburn Formation|75076|Mount Goodwin Formation, Upper|74058|||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Goodwin Subgroup|75073|||Olenekian||||deposition|Olenekian|||||||WA|No|67370||Gorter, J.D. (Eni Australia), Nicoll, R.S. (GA)|19-MAR-09|||Intended to supersede the Upper Mount Goodwin Formation of Gorter (1998). Of Mount Goodwin Subgroup (Gorter, Nicoll, et al. in prep. Mar2009).|Grey and green claystones with minor siltstone and sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Fisher Basalt|38799|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||eruption|||||||||No|23926||||||||basic volcanic rock|||N||17-JAN-23
Fishery Hill Lamproite|6692|Fishery Hill lamproite|6693|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Fitzgerald Member|35858|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Pallinup Formation|14796|||Late Eocene||||deposition|Late Eocene||||||||No|23331|||||||Sediments||||N||17-JAN-23
Fitzgerald Peaks Syenite|6696|Fitzgerald Peaks granitoids|6697|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Neoarchean||||intrusion|Neoarchean|2655|3|isotopic|||||No|35707||||||Previously considered paleoproterozoic but described as Neoarchean in 2014.|Syenite and quartz syenite.|intermediate intrusive rock|||Y||17-JAN-23
Fitzmaurice Group|6698|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Mesoproterozoic|1150||inferred|deposition|Paleoproterozoic|1640||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||3500||No|32309||||||Fitzmaurice Basin. Fitzmaurice Mobile Zone. Wingate Mtns 1:100 000 sheet area. Thickness: >3500m. Age: ~1200Ma.  See also Fitzmaurice group.|Sandstone, siltstone, shale, minor grit and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Fitzroy Volcanics|26555|Fitzroy Lamproite|6703|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Miocene|18|||eruption|Miocene|22|||||45||No|23766||||||See also Fitzroy Lamproite. Small plugs, <100 m to 1.8 km across; several, known as the Ellendale Vents, are diamondiferous.|Leucite lamproite, olivine lamproite, lapilli and chaotic tuffs.|exotic composition igneous rock|igneous volcanic rock||N||17-JAN-23
Flacourt Formation|27407|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Barrow Group|1209|||Valanginian||||deposition|Berriasian|||||||WA|No|37689||||||||sedimentary rock|||N||17-JAN-23
Flag Sandstone|25909|||||Yes|Formation, beds|Formal|Other new published name|Defined|Barrow Group|1209|||Valanginian||||deposition|Berriasian|||||||WA|No|41170|41751||||||Deep-water mass-flow deposits with diagnostic features including massive sandstone, dish structures, and vertical water escape pillars.|siliciclastic sedimentary rock|||N||17-JAN-23
Flaggy Member|28555|||||Yes|Member, phase|Formal|Variation of published name|Briefly described|||||||||deposition|||||||||No|42080|||||||||||N||17-JAN-23
Flamingo Group|6726|Flamingo Shale|6730|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Valanginian|136||biozone|deposition|Jurassic|150||biozone|||1230||No|41459||||||Reserved as Flamingo Shale Member. Age from Arafura Basin data.|Shale, siltstone, sandstone, sandy limestone, glauconitic sandstone, pyritic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Flat Rock Formation|27155|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran|||||300|1000|WA|No|44325|45047||||||Glacigenic purple micaceous shale and siltstone with interbedded fine to coarse and pebbly sublithic sandstone and dolomitic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Flat Rocks Tonalite|68675|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Mount Billroth Supersuite|68670|Archean|3164|4||intrusion|Archean|3166|||||||No|63372|63441|Van Kranendonk, M  (GSWA)|04-APR-05|Hocking, R.|03-MAY-06|To be used on the Mount Billroth mapsheet; nearest town is Dampier.  Ages: 3166Ma and 3164+/-4Ma.|Biotite-bearing tonalite; strongly foliated; locally interleaved with abundant massive to weakly foliated, K-feldspar porphyritic monzogranite.|acid intrusive rock|||N||17-JAN-23
Flat Top Limestone|81847|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Artinskian|||||Artinskian||||||||No|72505||||||||carbonate sedimentary rock|||N||17-JAN-23
Fleece Pool Gabbro|75708|||||Yes|Formation, beds|Formal|Other new published name|Described|||Yalgowra Suite|74829|Neoarchean|2735|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean||||||550||No|66195||Ivanic, T. (GSWA)|10-MAY-10|||Gabbro sill 500m thick with a harrisitic leucogabbro chilled top contact. Named after Fleece Pool (also type area), Cue 1:100k sheet area 2443. 27deg20'S, 117deg50'E. Published = AJES article on mafic-ultramafic intrusions of Youanmi Terrane, publication in 2010/11.|Gabbro with gabbronorite base and harrisitic leucogabbro top contact; metamorphosed.|basic intrusive rock|||Y||19-JUL-23
Fletcher Creek Granite|35835|Fletcher Creek Monzogranite|31886|||Yes|Formation, beds|Formal|Variation of published name|Described|Tickalara Metamorphics|18130|Dougalls Suite|24927|Orosirian||||intrusion|Orosirian|1850|2||||||No|23323|||||||Foliated and metamorphosed leucocratic biotite-muscovite(-garnet-magnetite) monzogranite; inclusions of amphibolite and country rock.|metamorphosed acid igneous rock|||Y||17-JAN-23
Flores Member|23595|||||Yes|Member, phase|Formal|Resvd name published|Fully described|||||Valanginian||||deposition|Valanginian||||||||No|42598||Hocking R.M.|21-JUN-89||||||||N||17-JAN-23
Fly Dam Formation|75624|Greenland Formation|75623|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic|1535|26|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|68186||Spaggiari, C. (GSWA)|11-MAR-10|||Zanthus 1:250k sheet SH51-15 , ?Zanthus 1:100k sheet 3635.  Interbedded semipelitic and psammitic gneiss.  To be published = 2010 WA state map 1:500k layer. Published GSWA Record 2011/23 p17 [to be indexed ASAP]. Maximum depositional age. GSWA Record 2013/5 (RefID 68654) has it as c.1620 Ma.|Amphibolite- to granulite-facies interlayered psammitic  to semipelitic gneisses,which appear to be the metamorphosed equivalents of interbedded sandstones and mudstones.|metasedimentary siliciclastic rock|||N||17-JAN-23
Fly Flat Member|21803|Wilson Cliffs Member|79799|||Yes|Member, phase|Formal|Resvd name published|Defined|Nambeet Formation|26070|||Tremadocian|||inferred, overlying unit|deposition|Tremadocian|||biozone||||WA|Yes|73344|73344|Normore, L. (GSWA)|07-AUG-20|Haines, P.(GSWA) WA stratigraphy subcommission|23-FEB-21|Name originally reserved by Gozzard, J.R. 26-APR-1989. Apparently not published for original purpose.Reservation dropped. Name now to be used by Normore 7-AUG-2020. Lagrange SE51-10. Named after Fly Flat Bore; 21.5km NW of Olympic 1 petroleum exploration well. Brief Description: Fine grain, calcite cemented sandstone. Type section is in petroleum well Olympic 1, Broome Platform, Canning Basin where the unit is 62m thick. Unit is the lower section of the Nambeet Formation and was continuously cored from the upper contact with overlying Upper Nambeet (Samphire Marsh Member: also reserved and defined) to total depth. Publication: Dent et al. (2021). Reference Section, revised stratigraphy and facies analysis of the Ordovician Nambeet Formation, Canning Basin, W.A.  GSWA Report 211.|Well-sorted, very fine-grained subarkose sandstone and minor siltstone. Basal sandstone-conglomerate unit of variable character; common glauconite and traces of pyrite.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||26-JUL-23
Flying Foam Suite|69014|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Archean|||||Archean|2724|||||||No|64174||Hickman, A.|23-MAY-05|||For use on the DAMPIER sheet. Includes the Gidley Granophyre.  Age: c.2724Ma. Lith description is combination of Gidley Granophyre and informal unamed sub-unit of the Flying Foam Suite used the GSWA interpreted bedrock geology 2020 dataset.|Fine- to medium-grained granophyre, commonly porphyritic; locally quartz-rich and altered; local rhyolite; underlain by gabbro. Gabbro; locally with large pyroxene crystals.|basic intrusive rock|acid intrusive rock||Y||17-JAN-23
Foal Creek intrusion|78621|Foal Creek Intrusion|31901|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Springvale Suite|78622|Paleoproterozoic|||||Paleoproterozoic||||||||No|63866||||||Grouped as Springvale, Wilagee, and Foal Creek intrusions, with a single lith description in 500k_geologyp08_lut.csv. Informal unit of Springvale Suite [advice from GSWA Dec 2013]. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic-ultramafic intrusions; peridotite, troctolite, gabbro, olivine gabbro, olivine gabbronorite, gabbronorite, leucogabbro, and anorthosite; minor chromitite layers.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Ford Run Plateau Dolerite Basalt|6803|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|30440||||||||basic intrusive rock|||Y||17-JAN-23
Forest Belle Gabbro|40473|Forest Belle|21808|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||||No|50076||||||Reserved as Forest Belle by Rattenbury (1992) for the Ballard Sheet .  Not known if published by originator.  In the Yilgarn Craton. Cut by auriferous gold veins.|Coarse-grained gabbro with clinopyroxene oikocrysts; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Forestier Bay Granodiorite|70615|Forestier Bay Tonalite|40063|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Orpheus Supersuite|68743|Archean|3014|3||intrusion|Archean|3014|3||||||No|63441||Van Kranendonk, M. (GSWA)|23-MAR-06|Hocking, R.||Published as the misspelt Forrestier Bay Granodiorite (GSWA Record 2006/15). Previously known as Forestier Bay gneiss (Sun and Hickman 1998). Forms part of the Harding Granitic Complex.|Biotite granodiorite and monzogranite, sparsely porphyrytic with phenocrysts of microline, and locally compositionally banded; massive except where tectonically foliated adjacent to Sholl Shear Zone.|acid intrusive rock|||Y||17-JAN-23
Forestier Claystone|23599|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Valanginian|135|||deposition|Berriasian|140|||||||No|42598||Hocking R.M.|21-JUN-89|||North West Shelf. Hydrocarbon seal.|Marine claystone.|fine grained siliciclastic rock|||N||17-JAN-23
Forman Sandstone|25914|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Glidden Group|25926|||Neoproterozoic||||deposition|Neoproterozoic|||||||WA|No|44397|48927|||||In the Glidden Basin.|White or purple massive to blocky thickly bedded well sorted fine quartz sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Forsyths Conglomerate|69949|Forsyths Conglomerate Member|21810|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Lutetian||||deposition|Lutetian||||||||No|22769||||||Possibly an abbreviation of Forsyths Conglomerate Member?  Need to confirm this. PP. 17/1/06.|||||N||17-JAN-23
Fortescue Group|6834|||||Yes|Group, Suite|Formal|Variation of published name|Defined|Mount Bruce Supergroup|12546|||Neoarchean|2629|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean|2780||inferred||5000|6500|WA|No|44729|24541|||||On YARRIE this group lacks the Mount Roe Basalt; instead a basal Koongaling Volcanic Member (Hardey Formation) overlies, and is genetically related to the underlying Gregory Granite Complex. Intruded by Cooya Pooya Dolerite and Gidley Granophyre. Bellary Formation is now considered the oldest unit in this group [See refID 66217 Coongan Explan Notes (2010)]. In Fortescue Basin (2007 Mount Edgar 100K, version2, refid 65727).|Basalt, basaltic andesite, and felsic volcanic rocks with locally thick siliciclastic sedimentary rocks; local carbonate rocks, komatiitic basalt and dolerite sills|basic volcanic rock|siliciclastic sedimentary rock||N||29-APR-23
Fortescue Group - mafic intrusions|74262|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Fortescue Group|6834|||Archean||||intrusion|Archean||||||||No||||||||Metadolerite, dolerite, gabbro; medium to coarse grained, massive grey-green rock, usually foliated|basic intrusive rock|||Y||17-JAN-23
Fortune Granite|79567|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Neoarchean|2726||inferred|||||No|71270||Sapkota, J. (GSWA).|17-AUG-16|||Map Sheet = Menzies Nearest Town = Goongarrie on BARDOC. The Fortune Granite has been mapped in the western part of the Eastern Goldfields Superterrane of the Yilgarn Craton. It intrudes mafic rocks of the Vetters Subgroup. Wheretobepublished = GSWA explanatory notes and interpreted bedrock geology map in 2017.|Granite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Forty-Four Hill Member|73861|||||Yes|Member, phase|Formal|Other new published name|Described|Lizard Hills Formation|38689|||Archean||||deposition|Archean||||||||No|24391||||||See also Forty-four Hill Member.|Basal conglomerate, well-stratified quartzose sandstone, brownish red sandstone, dolomite, volcanics, chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Fossil Cliff Member|6851|Fossil Cliff Formation|26559|||Yes|Member, phase|Formal|Unknown or process pending|Described|Holmwood Shale|8432|||Sakmarian||||deposition|Sakmarian||||||||No|31910||||||(Woolnough and Somerville, 1924). Also referred to as Fossil Hill Formation this unit "is best regarded as a member of the Holmwood Shale" as concluded by Playford et al (1976). Unit reinstated as Member in 2005, after being considered a formation for some years. See also Lexicon. 1993 ref says Fossil Clifff Member includes Artinskian microvertebrate fossils.|Interbedded dark micaceous and gypsiferous siltstone, sandy siltstone, shale, and bioclastic calcarenite deposited in a series of coarsening-upward parasequences.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Fossil Head Formation|6858|Fossil Head beds|6860|||Yes|Formation, beds|Formal|Other new published name|Fully described|Kinmore Group|9623|||Roadian|||biozone|deposition|Sakmarian|||inferred, biostratigraphic correlation|||590|WA|No|23820||||||Gas prone unit. Numerical age: ~287-~273Ma (Sakmarian - Kungurian, from 2001 chart. 2015 biozonation and stratigraphic chart shows the unit as Sakmarian- Roadian.|Carbonaceous siltstone and mudstone with sandstone and minor limestone. Abundantly fossiliferous.|fine grained siliciclastic rock|||N||17-JAN-23
Four Mile Hill Granite|83115|Four Mile Hill porphyry|72467|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoarchean|2613|11|isotopic|magmatic crystallisation|Neoarchean|||inferred|||||No|72485||||||Age from Nelson (1997).  Davis et al.(2010).p319, RefID 70482 seems to suggest this age determination is for a disturbance event, not time of emplacement.|Low-Ca granite.|acid intrusive rock|||Y||19-JUN-23
Fourteen Mile Well Formation|77937|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2711||inferred|deposition|Mesoarchean|2820||inferred|||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1,  Wildara 3041. Sandstone to siltstone; local conglomerate; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Psammite and pelite, commonly schistose; local metaconglomerate.|metasedimentary siliciclastic rock|||N||17-JAN-23
Frank River Sandstone|6882|||||Yes|Formation, beds|Formal|Other new published name|Defined|Duerdin Group|5760|||Ediacaran||||deposition|Cryogenian|||||||WA|No|44317|45047|||||Defn on Tech File E/52-6.|Interbedded sandstone, conglomerate and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Frank Scott Formation|6883|Elder Dolomite|24947|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mission Group|11971|||Stenian||||deposition|Stenian||||||||No|30944||||||Bentley Basin.|Limestone, dolomite, siltstone, chert, sandstone, and basalt.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Frankland Quartz Diorite|6884|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|40358|||||||||||Y||17-JAN-23
Fraser Range Metamorphics|78597|Fraser Complex|6887|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Ectasian|1291|8|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Ectasian|1304|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|65487||||||Includes the former Fraser Complex of Myers (1985) as well as interlayered metagranitic and metasedimentary rocks previously assigned as undivided Biranup Complex.|Sheeted and mostly strongly deformed metagabbro, metagranite, and minor metasedimentary rocks; includes hybrid rocks and mafic and felsic granulite|metamorphosed basic igneous rock|high grade metamorphic rock||N||29-APR-23
Fraser River Shale|6889|Fraser River beds|6890|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41215||||||See also Fraser River beds.||siliciclastic sedimentary rock|||N||17-JAN-23
Fraser Zone - gabbro, granite 83745|83745|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1290||inferred||Mesoproterozoic|1305||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Fraser Zone unit, P_-xmog-mgn-KKBF, Kepa Kurl Booya Province, Fraser Zone.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Interlayered metagabbro and metagranite, locally with metasedimentary rocks; may include mafic and felsic granulite.|metamorphosed igneous rock|||Y||30-JAN-23
Fraser Zone - gabbroic rock 83744|83744|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1290||inferred||Mesoproterozoic|1305||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Fraser Zone unit, P_-mog-KKBF, Kepa Kurl Booya Province, Fraser Zone.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metagabbroic rock; may include felsic granulite, metagranitic and metasedimentary rocks.|metamorphosed basic igneous rock|||Y||30-JAN-23
Fraser gabbro|81345|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Ectasian|||||Ectasian||||||||No|70084||||||Related to Fraser Suite?, Gnowangerup-Fraser Dolerite?||basic intrusive rock|||Y||17-JAN-23
Frederick Suite|40071|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Statherian|1801|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1815|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|50315||Green, M.|08-JAN-03|||Age: ~1800Ma. In the Tanami Inlier. Includes the "Pipeline granodiorite". Shown as equivalent in age to Granites Suite and Borefield Road Suite.|Medium- to fine-grained, equigranular biotite- or hornblende-bearing monzogranite to syenogranite. I-type.|acid intrusive rock|||Y|I-type|17-JAN-23
Frere Formation|6902|||||Yes|Formation, beds|Formal|Other new published name|Defined|Tooloo Group|79474|||Orosirian|1890||isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1946|71|isotopic, Pb/Pb|||1500|WA|No|31392|40938|||||Age: 1946 +/- 71 Ma, Pb-Pb age from stromatolitic carbonates; Russell et al. 1994 (RefID 65419). Previously of the Earaheedy Group. Consists of four major granular iron-formation intervals, separated by at least 3 major shale and siltstone bands, and minor carbonate. Different unit from Frere Formation (NT)?. SHRIMP U-Pb dating of magmatic zircons from thin tuffaceous layers in the Frere Formation provides depositional ages of  c. 1890 Ma,  Johnson (2013), RefID 69003.|Consists of four intervals of granular iron beds separated by shales, siltstones and carbonates; includes BIF, siltstone, shale, massive green chert, and granular iron-formation.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Frezier Sandstone|6911|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Aptian|||inferred, biostratigraphic correlation|deposition|Lower Cretaceous|||inferred, biostratigraphic correlation||15|40|WA|No|44479|45153|||||See also Lexicon.|Ferruginised, partly bioturbated, poorly sorted, fine- to coarse-grained sandstone, minor granule conglomerate, and minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Friday Monzogranite|33664|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|44203||||||Edjudina 1:250 000 sheet area.|Monzogranite.|acid intrusive rock|||Y||17-JAN-23
Frigate Shale|27270|Frigate Formation|24992|||Yes|Formation, beds|Formal|Resvd name published|Defined|Flamingo Group|6726|||Valanginian||||deposition|Oxfordian|||||||WA|No|41459|42442|A.J.Mory|17-JUL-87|||See also Frigate Formation.|Shale, calcareous shale; minor glauconitic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
GMS Suite|81346|||||Yes|Group, Suite|Informal|Other new published name|Described|||Recherche Supersuite|78595|Ectasian|1280||inferred||Ectasian|1330||inferred|||||No|70084||||||Informal nomenclature used to describe the voluminous granodiorite-monzogranite-syenogranite suite that dominates the Nornalup Zone.|Granodiorite, monzogranite, syenogranite.|acid intrusive rock|||N||17-JAN-23
Gabba Gabba Member|25917|||||Yes|Member, phase|Formal|Other new published name|Defined|Tumblagooda Sandstone|18674|||Llandovery||||deposition|Hirnantian|||||||WA|No|42116|42441||||||A distinctive, one metre thick pebbly sandstone to pebble conglomerate bed, useful as a stratigraphic marker.|siliciclastic sedimentary rock|||N||17-JAN-23
Gage Lowstand Fan|80793|Gage Low Stand Systems Tract|78047|||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Redefined|South Perth Sequence 2|80799|||Valanginian|136.6||biozone||Valanginian|||biozone||164|630|WA|Yes|71958||Lech, M. (GA)|21-NOV-13|||Using a sequence stratigraphic framework, this unit is the low stand systems tract constituent of the South Perth Sequence.  It largely coincides with the Gage Sandstone.  To be published: Poster at WABS 2013  in GA record in 2014. Described in GA Record2015/09.|Consists of poorly sorted fine-grained to granular feldspathic sandstone interbedded with dark grey/black micaceous mudstone and siltstone.|siliciclastic sedimentary rock|||N||01-JUN-23
Gage Sandstone|6954|Gage Sandstone Member|6952|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Warnbro Group|19470|||Valanginian||||deposition|Valanginian|||||259|610|WA|No|30217|12758|||||Formerly also Gage Formation (Davidson, 1995).|fine-grained to granular feldspathic sandstone interbedded with shale and siltstone, which may be several metres thick in some wells.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Gairdner Dolerite|72709|Gairdner Dyke Swarm|6956|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Tonian|824|4||intrusion|Tonian|827|6|isotopic, U/Pb-Pb/Pb ion probe|||150||No|63224||Cowley, W. (PIRSA)|23-NOV-06|Cowley, W.|23-NOV-06|To replace Gairdner Dyke Swarm. See also Gairdner Dykes. Coompana Province?|Dolerite dykes locally intruded by black porphyritic basalt. Variable magnetic character, but dominated by positively magnetic dykes.|basic intrusive rock|||Y||17-JAN-23
Galah Monzogranite|6959|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|2647|7|||||WA|No|42626|43478|||||Meliat area. Reserved as Galah Monzonite.|Muscovite-biotite monzogranite with pegmatitic segregations; low-Ca granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Galawa Member|28112|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Cambrian||||deposition|Cambrian|||||||WA|No|40993|40993|Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins.|||||N||17-JAN-23
Galeru Member|32535|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Sparke Conglomerate|17139|||Frasnian||||deposition|Frasnian||||||||No|66127||Playford P.|15-JUN-98|||Published on Canning Basin maps.GSWA Bull145 Plates 4 & 5. CEBJul2009|Distinctive cyclic sequence, each averaging 11-12m thick, coarsening upwards, commonly from marine siltstone or sandstone at the base to subaerial boulder conglomerate at the top.|siliciclastic sedimentary rock|||N||17-JAN-23
Galloping Creek Formation|23605|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||1600|WA|No|40993|40993|G.M.Beere, A.J.Mory|23-MAR-84||||Pebbly feldspathic sandstone and conglomerate; minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Gallup Sandstone|6969|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39316||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Galtee Moore|34801|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Windaning Formation|24111|||Archean|||||Archean|2810|19||||||No|22774|||||||||||N||17-JAN-23
Galvalley Monzogranite|21829|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||intrusion|Archean||||||||No|43205||Morris, Paul|24-MAR-92||||High Ca granite. Biotite monzogranite with prominent K-feldspar megacrysts; aligned K-feldspar, biotite, and xenoltihs define foliation locally.|acid intrusive rock|||Y||17-JAN-23
Gamma Island Formation|29419|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Miocene||||deposition|Oligocene||||||||No|42959||||||Reserved as Gamma Island. Also published as Gamma Island Dolomite.|Dolomite and dolomitic carbonate mudstone.|carbonate sedimentary rock|||N||17-JAN-23
Gamminah Conglomerate|26566|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mission Group|11971|||Stenian||||deposition|Stenian||||||||No|30944||||||Bentley Basin.|Conglomerate and coarse cross-bedded sandstone; basalt and rhyolite clasts up to 20cm.|siliciclastic sedimentary rock|||N||17-JAN-23
Gap Creek Formation|24996|Gap Creek Dolomite|27778|||Yes|Formation, beds|Formal|Variation of published name|Defined|Prices Creek Group|15573|||Middle Ordovician||||deposition|Lower Ordovician||||||223|WA|No|44404|45153|||||See also Lexicon.|Shallow marine dolomite and silty dolomitic limestone with sandy interbeds.|carbonate sedimentary rock|||N||26-JUL-23
Gap Intrusion|32781|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3314|13|inferred, intrusive relationship|intrusion|Paleoarchean|3463|2|inferred, geochemical correlation|||1000|WA|No|44229|60429|||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered with serpentinized dunite cumulate at base + metapyroxenite at top; bulk of the body is serpentinized peridotite. Serpentinite and serpentine schist after peridotite and dunite|ultramafic intrusive rock|metamorphosed ultramafic rock||Y||17-JAN-23
Gap Well Formation|23608|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Bangemall Supergroup|34951|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|41144||Vogt, J.H.|24-AUG-83|||May be local name, equivalent to Irregully Formation, Edmund Group.|Hosts a polymetallic deposit in dolomitic siltstone and shale.||||N||17-JAN-23
Garden Creek Monzogranite|39606|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Cleland Supersuite|68665|Paleoarchean||||intrusion|Paleoarchean||||||||No|24532||||||Formerly Shaw Granitoid Complex (2002 - 2004).|Metamorphosed biotite monzogranite; tectonically foliated; leucocratic; minor pegmatitic granitic sheets.|acid intrusive rock|||Y||17-JAN-23
Garden Rock Monzogranite|74870|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Walganna Suite|74845|Neoarchean||||intrusion|Neoarchean|2617|24||||||No|64891||Van Kranendonk, M. (GSWA)|29-OCT-08|||Original reserved name of Garden Granites changed after further discussion - for use in the complete revision of the Murchison domain lithostratigraphy; to be published in GSWA Annual Review 2007-2008.  Age: c. 2625Ma. Part of the Bald Rock Supersuite.|Undeformed monzogranite to syenogranite; post-tectonic.|acid intrusive rock|||Y||17-JAN-23
Gardiner Sandstone|7009|Gardiner Formation|7008|||Yes|Formation, beds|Formal|Variation of published name|Defined|Birrindudu Group|1735|||Calymmian|1560|20|isotopic, K/Ar|deposition|Statherian|1768|14|isotopic, U/Pb-Pb/Pb ion probe||1000|3000|NT|No|30878|45140|||||Age of 1560.00 (K/Ar) is taken from the Birrindudu Group on the 2006 Geology of NT 2.5 million scale map, and is significantly older than previous references.  A subsequent  SHRIMP U-Pb study (RefID: 64662) of detrital zircon in the Tanami region, gives an age: ~1.77 - 1.64 Ga, for same reasons as unconformably underlying Pargee Sandstone (p40-41).|Cross bedded, thinly to thickly bedded white sublithic medium to coarse grained, poorly sorted quartz sandstone with siltstone, shale; minor glauconitic sandstone and flaggy dolomitic sandstone, and basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Garford Formation|25918|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Immarna Group|23661|||Zanclean|4|||deposition|Burdigalian|18.5||||10|70|SA|Yes|35080|35080|Benbow M.C., Pitt G.M.|01-FEB-78|Gatehouse, C.G.|05-DEC-79|Previously of Immarna Group. Grouing used again in 2007, 2017.|Mudstone, carbonate, stromatolitic, oncolitic and oolitic, gastropods, minor sandstone horizons.  Upward change from argillaceous to carbonate mudstone. Lacustrine|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Garimala Limestone|23609|||||Yes|Formation, beds|Formal|Other new published name|Defined|Ningbing Group|14166|||Famennian||||deposition|Famennian|||||||WA|No|40993|40993|Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins.|Peloidal grainstone and limestone breccia, algal boundstone.|carbonate sedimentary rock|||N||17-JAN-23
Gascoyne Complex|7044|||||Yes|Supergroup|Formal|Other new published name|Fully described|||||Statherian|1619|15|isotopic||Statherian|1680|||||||No|44142||||||The high-grade metamorphic core of the Capricorn Orogen. Although used in a 'stratigraphic unit' sense when first established, not technically a stratigraphic unit; more a structural unit. More recently used in a 'province' sense: but see RefID 66950. RefID 24535 gives age of constituent monzogranite: 1619+/-15 Ma.|Granite plutons, sheets and dykes; granitic gneiss; and metasedimentary rocks.|acid intrusive rock|metamorphic rock||N||17-JAN-23
Gascoyne Province metamorphosed mafic intrusive rocks 83746|83746|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1321||inferred||Paleoproterozoic|1648||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Gascoyne Province metamorphosed mafic intrusive unit, P_-mod-GA Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Massive metadolerite and foliated amphibolite; fine to medium grained|metamorphosed basic igneous rock|foliated metamorphic rock||Y||30-JAN-23
Gearle Siltstone|7072|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Winning Group|20259|||Cenomanian||||deposition|Albian||||||346|WA|No|44537|48861|||||Defined by Bastian & Willmott (1965a). See also Lexicon. See many variations of Gearle, including Upper Gearle Siltstone and Lower Gearle Siltstone.|Clayey siltstone, dark grey-black claystone, radiolarian siltstone. Dark-grey to black pyritic mudstone.|fine grained siliciclastic rock|||N||17-JAN-23
Gearless Well trachyandesite|7073|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41741||||||||intermediate volcanic rock|||N||17-JAN-23
Gee Cee Slate Member|7085|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Woolyeenyer Formation|20591|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Geegully Creek|39555|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|30-OCT-03|||Canning Basin.|||||N||17-JAN-23
Geemas Granodiorite|73578|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Indee Suite|40281|Archean|2945|6||intrusion|Archean|2945|6||||||No|63441||||||Within the Sisters Supersuite.  Intrudes De Grey Supergroup.||acid intrusive rock|||Y||17-JAN-23
Gibralter Quartz Monzonite|29206|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||intrusion|Archean||||||||No|39160||S.A.Wilde, I.W.Walker|30-MAR-78|||Collie SI50-6. See also Gibraltar Quartz Monzonite.|Clinopyroxene- and hornblende-bearing quartz monzonite; some alkali granite and syenite|intermediate intrusive rock|acid intrusive rock||Y||17-JAN-23
Gibson Formation|25921|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bathurst Island Group|1249|||Upper Cretaceous||||deposition|Upper Cretaceous|||||||WA|No|41199|41199|||||Reserved as Gibson. Used for two separate units in WA. Cretaceous unit within Bathurst Island Group, in Vulcan Sub-basin is Invalid name - use Brown Gannet Limestone instead. Not the same unit as another Gibson Formation in the Yeelirrie area of WA which is properly defined and has priority. Also distinct from Gibson Creek Formation, NT.|Deep water limestone; pelagic marl, hemipelagic marl, limestone.|carbonate sedimentary rock|||N||17-JAN-23
Gibson Honman Formation|81986|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Black Flag Group|28372|||Neoarchean|||inferred||Neoarchean|||inferred|||||No|72814||||||East of Zuleika Shear, Ora Banda Domain. Probably different unit to Honman Formation of Lake Johnston Greenstone Belt.|Felsic dacitic volcanic and sedimentary rocks.|acid volcanic rock|sedimentary rock||N||17-JAN-23
Gidji Lake Formation|83169|Gidji Lake formation|83379|||Yes|Formation, beds|Informal|Resvd name published|Mentioned|Black Flag Group|28372|||Neoarchean|||inferred||Neoarchean|||inferred|||||No|73391||Sapkota, J. (GSWA)|31-MAR-22|||Map sheets: Kalgoorlie, Kanowna. Uppermost unit within the Black Flag Group. It comprises massive to stratified sandstone and conglomerate of felsic volcaniclastic origin with minor interbeds of rhyodacitic breccia and shale. To be published : 2022 GSWA East Yilgarn package and Explanatory notes.|Massive to stratified sandstone and conglomerate of felsic volcaniclastic origin with minor interbeds of rhyodacitic breccia and shale|siliciclastic sedimentary rock|||N||17-JAN-23
Gidley Granophyre|7187|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Flying Foam Suite|69014|Neoarchean|2725|||intrusion|Neoarchean|2725|1.3|isotopic, U/Pb|||2000|WA|No|30490|30490|||||Formerly referred to as "Dampier Granophyre". Intrudes along the basal unconformity of the Fortescue Group; intrudes the Hearson Monzogranite outcrops along the Burrup Peninsula and Dampier Archipelago islands.|Fine- to medium-grained granophyre, commonly porphyritic; locally quartz-rich and altered; local rhyolite; underlain by gabbro|acid intrusive rock|||Y||29-APR-23
Gidley Granophyre - mafic phase|74905|||||Yes|Member, phase|Informal|Variation of published name|Mentioned|Gidley Granophyre|7187|||Neoarchean||||intrusion|Neoarchean|2725||inferred|||||No|||||||Informal unit for the Surface Geology of WA 1:1 million scale dataset|Gabbro|basic intrusive rock|||Y||17-JAN-23
Gifford Creek Carbonatite Complex|77223|Gifford Creek Complex|41230|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoproterozoic|1050|24|isotopic, U/Pb-Pb/Pb ICP-MS|tectonic process|Paleoproterozoic|1075|35|isotopic, U/Pb-Pb/Pb ICP-MS|intrusion||||No|66299||||||Formerly Gifford Complex (Pearson et al. 1996); name changed for lack of alkaline igneous rocks other than carbonatite. Changed to G.C.Ferrocarbonatite Suite on 6/8/2014 by S.Johnson (GSWA). Name used and considered to be 1620-1030 Ma in 2012.Advice from Luke Blais, Dreadnought Resources 27-FEB-2023: The Gifford Creek Ferrocarbonatite Complex should be renamed Gifford Creek Carbonatite Complex due to the discoveries of major calcio and magnesiocarbonatite plugs by Dreadnought Resources. The region was called Gifford Creek Ferrocarbonatite Complex as only ferrocarbonatites weathered into ironstones were recorded, until 2022.|Ferroan carbonatites composed of predominantly ankerite-dolomite, magnetite, pyrochlore, arfvedsonite-riebeckite, and lesser calcite; associated with haloes and veins of fenitic alteration.|exotic composition igneous rock|||Y||27-APR-23
Gilbert's Grave granitoid|69339|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|61144||||||Briefly described.|||||Y||17-JAN-23
Giles Complex|7206|||||Yes|Group, Suite|Formal|Other new published name|Defined|||Warakurna Supersuite|73257|Stenian|1052|11|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Stenian|1078|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|43969|43609|||||Consists of massive, partly deformed and recrystallised, layered mafic-ultramafic intrusions emplaced in the southern granulite-facies zone of Musgrave Block; over 20 massive and layered mafic-ultramafic intrusions. Part of Warakurna Large Igneous Province? See also Giles Suite which may replace this unit.|Layered mafic-ultramafic intrusions: gabbro, gabbronorite, norite, troctolite, pyroxenite, melagabbro, anorthosite|basic intrusive rock|ultramafic intrusive rock||Y||11-AUG-23
Giles Complex - marginal phase|73050|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Giles Complex|7206|||Stenian||||intrusion|Stenian||||||||No|||||||Used in the 1:1 million scale geology of SA, National Geological Maps Project.|Recrystallised gabbroic rocks, mafic granulite, granitic gneiss, minor metamorphosed mafic and felsic volcanics, minor felsic granulite, gabbro, dolerite; marginal phase of Giles Complex|basic intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Giles Complex - ultramafic rocks|74214|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Giles Complex|7206|||Stenian||||intrusion|Stenian||||||||No|||Whitaker, A. (GA)|22-APR-08|||Metadata ID: ANZLIC Metadata ID ANZCW0703008281. Part of the Giles Complex.|Pyroxenite, peridotite, websterite, ultramafic rock|basic intrusive rock|||Y||17-JAN-23
Giles Suite|74611|Giles Complex|7206|||Yes|Group, Suite|Formal|Variation of published name|Described|||Warakurna Supersuite|73257|Stenian|1075||inferred||Stenian|1078|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|64580||||||Bentley Basin. Previous minimum SHRIMP age of 1052+/-11 Ma age, from a paper about the Giles Complex - Sun et al 1996, AGSO Research Newsletter 24 p13-15 is now discounted by GSWA [2020]. Does this name supersede Giles Complex?? Warakurna Large Igneous Province. Two facies are mapped separately. This unit name is to be restricted to the older mafic-ultramafic rocks of the Giles intrusions (Giles Suite 1), with crystallisation ages between c. 1078 and 1075 Ma.In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Giles Suite P_-WKG-xo-a. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Layered mafic-ultramafic intrusions of gabbro, troctolite, gabbronorite, norite, pyroxenite and anorthosite; massive gabbro and granite. Some metagabbro.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Giles Suite - cumulate-textured metagabbro 83747|83747|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Giles Suite|74611|Stenian|1075||inferred||Stenian|1078||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Giles Suite P_-WKG-mog. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Cumulate-textured metagabbro; locally containing clinopyroxene, orthopyroxene, olivine, and garnet.|metamorphosed basic igneous rock|||Y||30-JAN-23
Giles Suite - gabbro 83748|83748|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Giles Suite|74611|Stenian|1075||inferred||Stenian|1078||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Giles Suite P_-WKG-og. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Medium-grained, even-textured gabbro; locally olivine porphyritic|basic intrusive rock|||Y||30-JAN-23
Giles Suite 1|80998|Giles Suite|74611|||Yes|Group, Suite|Informal|Variation of published name|Described|||Warakurna Supersuite|73257|Mesoproterozoic|1075||inferred||Mesoproterozoic|1078||inferred|||||No|72034||||||Invalid subdivision of Giles Suite. Needs a different name.|Layered mafic-ultramafic intrusions.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Gilgarna Syenite|33668|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|44202||||||Kurnalpi 1:250 000 sheet area.|Syenite|intermediate intrusive rock|||Y||17-JAN-23
Gillam Monzogranite|41174|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Split Rock Supersuite|68672|Neoarchean|||inferred|intrusion|Mesoarchean|||inferred|||||No|50379||||||Variation of the reserved name Gillam Creek Leucogranite (Smithies H., Champion D., 2000).|Weakly feldspar-porphyritic biotite(-muscovite) monzogranite; locally with magnetite phenocrysts; massive to weakly foliated; weakly metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Gindalbie Group|7247|Gindalbie Formation|27156|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Neoarchean|2671||||Neoarchean|2697|||||||No|37373|||||| To replace Gindalbie Formation,  in GSWA publications in 2014. [advice from Nicole Patison (GSWA) 26-FEB-2014]. Map Sheet SH51-5, 3139, MELITA.  Nearest Town = Leonora. To include Melita, Teutonic Bore and Spring Well Formations.  Brief description = Rhyolitic, rhyodacitic to andesitic volcanic rocks and coeval basalt, dolerite and gabbro; metamorphosed. Published description is different - only a combination of two informal unnamed sub-units. Formation descriptions excluded.|Rhyolitic, rhyodacitic to andesitic volcanic rocks and coeval basalt, dolerite and gabbro; metamorphosed.Komatiitic basalt and minor mafic schist. Mylonitized psammite and pelite.|igneous volcanic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Gingin Chalk|7259|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Coolyena Group|4565|||Santonian||||deposition|Coniacian||||||40|WA|No|44657|36293|||||See also Lexicon. SH50-14. Defined Glauert (1910). Type section in MacIntyre Gully, 1.6km N of Gingin.|Glauconitic chalk, minor greensand; richly fossiliferous|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Giralia Calcarenite|7272|Giralia calcarenite|7275|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Priabonian||||deposition|Lutetian||||||226||No|44537||||||See also Lexicon.|Calcarenite, commonly ferruginised, glauconitic and/or quartzose; shallow marine bioclastic.|carbonate sedimentary rock|||N||17-JAN-23
Givetian-Frasnian reef complexes, marginal slope and basinal facies 80956|80956|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Frasnian|||biozone||Givetian|||biozone|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Lennard Shelf, Canning Basin. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Limestone, calcareous sandstone, and mudstone; common breccia and mass flow deposits; lesser siliciclastic sandstone and conglomerate|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Givetian-Frasnian reef complexes, platform facies 80957|80957|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Frasnian|||biozone||Givetian|||biozone|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Lennard Shelf, Canning Basin. Includes Pillara Limestone and Cadjebut Formation (reefal precursor). Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Limestone with lesser siltstone and sandstone, commonly cyclic; includes Pillara Limestone and Cadjebut Formation (reefal precursor).
|carbonate sedimentary rock|||N||03-APR-23
Gladstone Member|42390|Gladstone Member""|7311|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Carbla Oolite|3582|||||||deposition|||||||||No|23815|||||||Contains irregular echinoids and molluscs.|sedimentary rock|||N||17-JAN-23
Glass Hill Sandstone|23618|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Mahony Group|23749|||Frasnian||||deposition|Frasnian||||||||No|41840||P.E.Playford|04-MAY-83||||Medium- to fine-grained quartz arenite; minor pebbly sandstone, conglomerate and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Glass Spring Formation|7320|||||Yes|Formation, beds|Formal|Resvd name published|Described|Salvation Group|35575|||Mesoproterozoic|1080|||deposition|Mesoproterozoic|1229|||||||No|42708||||||Previously basal unit within the Savory Group, now [from ~2003] included in the Salvation Group (Mesoproterozoic).  For the location of type section see ref Bullen Explan Notes (1995). Unit defined by Williams (1992). Salvation Basin.|Medium to coarse grained sandstone, pebbly sandstone, siltstone, and pebble to cobble conglomerate. Poorly sorted and cross bedded.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Glasse Formation|7321|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Neoarchean|2720|||deposition|Mesoarchean|2873|||||1500|WA|No|30969|31093|||||Of the Lake Johnston Greenstone Belt, Youanmi Terrane.|Mafic volcanic rocks with subordinate mafic intrusive rocks; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Gleesons Basalt|77856|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coolgardie Subgroup|77855|||Neoarchean||||eruption|Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Kalgoorlie Terrane, Eastern Goldfields Superterrane. To be published = Geological Survey of Western Australia East Yilgarn update 2013-14, digital product. Originally reserved as 'Gleesons Komatiitic Basalt', but name shortened in Nov 2014 by Hall, and Wyche, GSWA.|Komatiitic basalt to basalt; metamorphosed.|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
Glen Group|74811|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|Murchison Supergroup|13501|||Neoarchean|2700|||magmatic crystallisation|Neoarchean|2725|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Basalt, with underlying clastic sedimentary rocks; dominantly komatiitic basalt; minor rhyolite, andesite, and chert; weakly metamorphosed.|ultramafic volcanic rock|sedimentary rock||N||06-JUN-23
Glen Ross Shale Member|7349|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Kiangi Creek Formation|27174|||Mesoproterozoic||||deposition|Mesoproterozoic||||||525||No|35639||||||Of Kiangi Creek Formation, Edmund Subgroup, Bangemall Group, of Muhling and Brakel (1985). Is unit still in use? [CEB Feb 2012].||siliciclastic sedimentary rock|||N||17-JAN-23
Glenayle Dolerite|40821|Glen Ayle Dolerite|33756|||Yes|Formation, beds|Formal|Variation of published name|Described|||Warakurna Supersuite|73257|Stenian|1066|14|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Stenian|1070|14|isotopic, U/Pb-Pb/Pb ion probe|||100||No|50188||||||Suite of dolerite sills, dyes & plugs, each usually > 100 m thick. Three types recognised - basaltic, doleritic and gabbroic. Intrudes Salvation Group, parts of Earaheedy Group, Edmund and Collier Groups in the western part of the Bangemall Supergroup. Age of intrusion: 1066+/-14 Ma (Pb-Pb).  See also the misspelt Glen Ayle Dolerite.|Dolerite sill, dyke, and plug; fine- to medium-grained dolerite.|basic intrusive rock|||Y||04-OCT-23
Glenburgh Terrane - amphibolite 83749|83749|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1965||inferred||Paleoproterozoic|2125||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Glenburgh Terrane Proterozoic unit, P_-mwa-GAG. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Amphibolite.|high grade metamorphic rock|||Y||30-JAN-23
Glenburgh Terrane - mafic gneiss 83750|83750|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1965||inferred||Paleoproterozoic|2125||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Glenburgh Terrane Proterozoic unit, P_-mog-GAG. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Plagioclase-actinolite+/-tremolite gneiss; after gabbro.|foliated metamorphic rock|metamorphosed basic igneous rock||Y||30-JAN-23
Glenburgh Terrane - schist 83751|83751|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|2002||inferred||Paleoproterozoic|2441||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Glenburgh Terrane Proterozoic unit, P_-mus-GAG. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Fine- to medium-grained actinolite(-clinozoisite+/-albite+/-titanite) and tremolite(+/-serpentine+/-talc+/-calcite) schist.|foliated metamorphic rock|||Y||30-JAN-23
Glenhill Formation|7417|||||Yes|Formation, beds|Formal|Other new published name|Described|Carr Boyd Group|3663|||Tonian|1057|80|isotopic, Rb/Sr|deposition|Stenian|1057|80|isotopic, Rb/Sr|||300||No|44363||||||Age: 1057 +/- 80 Ma.|Red, green and black, commonly laminated siltstone, shale and fine sandstone (locally glauconitic); blocky quartz sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Glidden Group|25926|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Cryogenian|||inferred, biostratigraphic correlation|deposition|Paleoproterozoic|||inferred||||WA|No|31393|48927|||||Age: 1250 Ma. In the Glidden Basin.|Sandstone, quartz wacke, shale, and siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Glyde Formation|7456|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Pussy Cat Group|15689|||Stenian|1065|||eruption|Stenian|1072|||||||No|30385||||||Of Bentley Supergroup, Bentley Basin (GSWA, 2011).|Typically vesicular and amygdaloidal basalt, and minor basaltic andesite; interbedded with fine- to coarse-grained siliciclastic rocks; epidotized|basic volcanic rock|siliciclastic sedimentary rock||N||01-MAY-23
Gnanagooragoo Igneous Complex|74830|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean|2741|7|inferred, intrusive relationship||Neoarchean|2792||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. See Range Bore intrusion. Age considered to be ~2745 Ma because cut by 2740+/- Ma felsic igneous rocks and intrude ~2960 Ma (and possibly 2752 Ma) felsic volcaniclastics. Previously included in Yalgowra Suite, but placed in Annean Supersuite in 2010 (Cue 1:100k map RefID 67116, and AJES article RefID 66195)|Contains a layered sequence of mafic-ultramafic igneous rocks, including widespread dolerite and gabbro, but also wehrlite and olivine-chromite-rich units; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Gnanagooragoo Igneous Complex - dolerite, gabbro 83752|83752|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||Gnanagooragoo Igneous Complex|74830|Neoarchean|||inferred||Neoarchean|2792||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Gnanagooragoo Igneous Complex, members A-ANgn-od and  A-ANgn-ogy combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Dolerite and gabbro, medium to coarse grained with local fine- and coarse-grained layers; massive, locally weakly deformed; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||30-JAN-23
Gnanagooragoo Igneous Complex - ultramafic intrusive rock 83753|83753|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||Gnanagooragoo Igneous Complex|74830|Neoarchean|||inferred||Neoarchean|2792||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Gnanagooragoo Igneous Complex, member A-ANgn-a. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Ultramafic intrusive rock; metamorphosed; typically serpentinized.|ultramafic igneous rock|||Y||30-JAN-23
Gnangara Sand|21871|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Kwinana Group|25141|||Chibanian||||deposition|Pliocene||||||30|WA|No|12759|12759|Morgan K., Davidson A.|16-MAR-94|||Name published in 1964, but never defined.|Pale grey, fine- to very coarse-grained, very poorly sorted (locally bimodal), subrounded to rounded quartz sand and abundant feldspar; predominantly fluvial.|regolith|||N||17-JAN-23
Gneudna Formation|7463|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Frasnian||||deposition|Givetian||||||1092|WA|No|44537|45015|||||See also Lexicon. SG50-1. Max. thickness: 2700ft. See also misspelt Gneuda Formation.  Includes youngest known thelodonts in Australia and possibly the world (from 1993 ref). Diverse macrovertebrate fauna. Dolomite is potentially a hydrocarbon reservoir.|Interbedded carbonate rocks and siltstone with minor evaporites; calcarenite, quartzwacke, calcilutite and calcareous siltstone, generally very fossiliferous.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Gnewing Granodiorite|21872|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|44694||Sheppard S.|08-OCT-94|||Mount Ramsey and/or Gordon Downs 1:250 000 sheet area. In the Hooper Complex and Lamboo Complex western zone. Age: 1865-1850Ma.|Coarsely porphyritic biotite hornblende granodiorite and tonalite with mafic inclusions.|acid intrusive rock|||Y||17-JAN-23
Gnowangerup-Fraser Dolerite|80596|Gnowangerup-Fraser Dyke Suite|78592|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||Marnda Moorn Suite|80594|Mesoproterozoic|1202|10|isotopic||Mesoproterozoic|1218|10|isotopic|||||No|||Wingate, M.T.D., Spaggiari, C.V. (GSWA)|09-AUG-18|||Dolerite and gabbro dykes; trending east-northeast to northeast; mostly interpreted from aeromagnetic data. See also Gnowangerup dyke swarm, Fraser dyke swarm, Fraser dykes and Gnowangerup Dyke Swarm. One of four mafic dyke suites cutting the southern and southeastern Yilgarn Craton. Part of the c.1210 Ma Marnda Moorn Large Igneous Province. Ages range from 1218+/-10 and 1202+/-10 Ma. See also GSWA ENS: Wingate, MTD and Spaggiari, CV (partial report), Gnowangerup¿Fraser Dolerite (P_-MMgf-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Typically dolerite and gabbro, minor quartz diorite.|basic intrusive rock|||Y||17-JAN-23
Gnows Nest Granodiorite|78990|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Thundelarra Supersuite|78988|Mesoarchean|2951|||intrusion|Mesoarchean|2958||inferred|||||No|70769||Ivanic, T. (GSWA)|07-JAN-15|||Used in Murchison Domain updates in 2015. Named after Gnows Nest Range, 28deg 36'S, 116deg51'E. Type area 5 km north of Golden Grove mine. Possibly subvolcanic to Scuddles Member. Probably includes rocks previously interpreted as meta-arkosic and called Shadow Well Formation.|Metamorphosed granodiorite to tonalite with K-feldspar phenocrysts up to 8 mm in 4-6 mm matrix. A separately-mapped sub-unit is similar, but also contains hornblende phenocrysts.|metamorphosed acid igneous rock|||Y||17-JAN-23
Goat Dam Monzogranite|30178|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|43222||||||Roe 1:100 000 sheet 3436.|Equigranular biotite monzogranite; strongly deformed mafic enclaves locally|acid intrusive rock|||Y||01-MAY-23
Gobbos Granodiorite|38758|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Emu Pool Supersuite|68766|Paleoarchean|3313|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3314|4||||||No|24025|||||||Biotite granodiorite and monzogranite with minor hornblende; medium-grained, seriate to locally porphyritic, metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Godfrey beds|7474|Godfrey Beds|7473|||Yes|Formation, beds|Informal|Unknown or process pending|Defined|Liveringa Group|25997|||Late Permian||||deposition|Late Permian|||||||WA|No|45153|45153|||||Originally of McWhae et al. (1958); Casey and Wells (1964). Included as in informal unit in the Liveringa Group on the advice of GSWA (R.Hocking) Oct 2008.  Probable correlative of Hardman Formation (Towner & Gibson, 1983)|Paralic, cross bedded and ripple marked, thinly bedded fine and medium grained sandstone with minor siltstone; abundant trace fossils and burrowings with rare plant macrofossils; basal coarse sandstone and conglomerate in places|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Gogo Formation|7476|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Frasnian||||deposition|Givetian||||||430|WA|No|44403|45153|||||See also Lexicon. 2008 - fossil fish found in Gogo Formation by John Long and Gavin Young with fossil unborn baby embryo inside with umbilical cord. Source rock for Nullara and Yellow Drum Formation's oil.|Fossiliferous shallow marine reef complex basin facies black to light grey shale and siltstone with thin lenses of limestone and layers with abundant limestone concretions.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Golden Bar Sill|7489|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Coolgardie Group|4536||||||||||||||||No|42221|||||||||||Y||17-JAN-23
Golden Cities Granodiorite|79348|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies within the Bardoc 1:100K map sheet area. Named after mining camp within the granodiorite extent and referenced in Cassidy et al (2002; AMIRA P482/MERIWA M281). To be published = GSWA digital release 2016.|Fine- to medium-grained granodiorite.|acid intrusive rock|||Y||17-JAN-23
Golden Eagle Orthogneiss|37550|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Mount Billroth Supersuite|68670|Mesoarchean|3178|3|||Mesoarchean|3199|||||||No|50287||Bagas, L.|01-OCT-02|||Nullagine and Noreena Downs 1:100 000 sheet areas|Layered orthogneiss derived from tonalite, granodiorite, monzogranite and pegmatite; layers and lenses of amphibolite and ultramafic schist; foliated granite, granitic gneiss, mingled metasedimentary and metavolcanic xenoliths and granite|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Golden Empress Gabbro|80116|||||Yes|Formation, beds|Informal|Other new published name|Described|Bounty Igneous Complex|78349|||Neoarchean|||inferred||Neoarchean|||inferred|||500||No|71212|||||||Massive, medium and even-grained gabbro that is sporadically pyroxene-phyric.|basic intrusive rock|||Y||17-JAN-23
Golden Gate Siltstone|7497|Golden Gate Formation|7496|||Yes|Formation, beds|Formal|Variation of published name|Described|Carr Boyd Group|3663|||Stenian|1158|123|isotopic, Rb/Sr|deposition|Ectasian||||||60||No|44363|||||||Mudstone and thinly bedded fine-grained sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Golden Grove Member|78987|Golden Grove Formation|40545|||Yes|Member, phase|Formal|Variation of published name|Described|Gossan Hill Formation|78983|||Mesoarchean||||magmatic crystallisation|Mesoarchean|2963|6|isotopic|||||No|70769||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Golden Grove Mine, 28deg45'S, 116deg58'E. Type area: Gossan Hill 28deg48'S 116deg58'E.Conformably overlying Gossan Valley Member and underlying Scuddles Member.|Rhyodacite, rhyolite and laminated felsic volcaniclastic rocks; host to significant massive sulphide horizons; metamorphosed.|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
Golden Mile Dolerite|26586|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Black Flag Group|28372|Great Boulder Suite|77865|Neoarchean|2660|100|isotopic, Rb/Sr|intrusion|Neoarchean|2675|6|isotopic, U/Pb||600|940|WA|Yes|68217|||||||A differentiated (micro-) gabbroic sill, the main host to Kalgoorlie-Boulder gold mineralisation. Upper & lower chilled margins, a lower ultramafic layer, several gabbroic units, iron-rich microgabbro, central granophyric unit.|basic intrusive rock|||Y||17-JAN-23
Golden Ridge porphyry|7505|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41249|||||||||||U||17-JAN-23
Golden Valley Conglomerate|35674|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Merougil Group|73921|||Neoarchean||||deposition|Neoarchean|2668|9||maximum depositional age||||No|23142|||||||Rounded mafic rudite.||||N||17-JAN-23
Goldwyer Formation|25928|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Darriwilian|||biozone|deposition|Darriwilian|||biozone||134|750|WA|No|30110|69883|Elliot, R.L.M. (West Aust petroleum)|01-JAN-61|||First defined by Elliot (1961). Reported in BMR Bull 210 Appendices (1981). Redefined Haines (2004). New accessible reference sections nominated. Excellent hydrocarbon source potential. Fossiliferous. Well developed hydrocarbon source horizons with efficient Carribuddy seal.|Dominated by mudstone, carbonate. Siltstone, sandstone, shale; minor dolomite, limestone. Locally bioturbated. Significant diagenetic dolomitization of original limestone. Macrofossils in both mudstone and carbonate facies. Probably includes 3 thin tuffs.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||27-JUL-23
Gombugurra Rhyolite|26587|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian||||eruption|Stenian||||||||No|30944||||||Bentley Basin.|Dark-grey, feldspar-phyric rhyolite with very fine-grained groundmass; massive, flow-banded or spherulitic.|acid volcanic rock|||N||17-JAN-23
Goobaieri Formation|7530|||||Yes|Formation, beds|Formal|Other new published name|Defined|Fitzmaurice Group|6698|||Mesoproterozoic|1150||inferred|deposition|Mesoproterozoic|||inferred, underlying unit|||615|NT|No|32310|48938|||||Fitzmaurice Basin.|Quartz sandstone, siltstone, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Gooche Gneiss|36003|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Moorarie Supersuite|33440|Statherian|1776|8|isotopic, U/Pb-Pb/Pb ion probe||Orosirian|1830||||||WA|No|50292|61262|Sandi Occhipinti - Curtin University|23-MAY-01|||Named after Gooche Well on Mt Phillips Sheet. Series of small inliers faulted against Pooranoo Metamorphics, and inclusions in Durlacher Supersuite granites. The 1776 +/- 8 Ma date is said to be igneous crystallisation age of the precursor granite (Sheppard et al. 2005).|Strongly foliated, porphyritic metagranodiorite and metamonzogranite, and augen gneiss.|metamorphosed acid igneous rock|foliated metamorphic rock||Y||17-JAN-23
Goodia Monzogranite|67862|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|65258|||||||Equigranular, fine- to medium-grained biotite monzogranite to granodiorite; strongly foliated margins.|acid intrusive rock|||Y||17-JAN-23
Goodin Inlier granitic rocks 83754|83754|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||inferred||Mesoarchean|3010||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Goodin Inlier granitic unit, A-g-YGD. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granitic rock, undivided; metamorphosed.|acid intrusive rock|||Y||30-JAN-23
Googhenama Formation|7555|Bocrabee Sandstone|27344|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tarcunyah Group|31872|||Cryogenian||||deposition|Tonian|850||inferred||500|700||No|43055||||||Also supersedes Googhenama Conglomerate.|Interbedded fine- to coarse-grained, light pink to purple coloured sandstone, commonly quartz-rich with ripple marks; granular to boulder conglomerate, lenticular, commonly matrix-supported, quartz-pebble rich or polymictic.|siliciclastic sedimentary rock|||N||17-JAN-23
Goonetarra Granodiorite|79009|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Rothsay Suite|79002|Neoarchean||||magmatic crystallisation|Neoarchean|2749|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|70226||Ivanic, T. (GSWA)|13-JAN-15|||Used in Murchison Domain updates in 2015. Named after Goonetarra Well, Yalgoo1:250 geol. sheet area. 28deg30'S 116deg42'E. Type area: immediately north of Goonetarra Well. Intrusive into top-Norie Group and base-Polelle Group supracrustal rocks along a lineated contact.|Metatonalite, metagranodiorite, and metamonzogranite; commonly foliated and lineated; includes porphyritic and equigranular varieties.|acid intrusive rock|||Y||17-JAN-23
Goongarrie Monzogranite|7569|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786||||||Reserved as Goongarrie Adamellite.|Biotite-bearing monzogranite with local prominent K-feldspar megacrysts; domal within D2 anticline; weak to moderate foliation; deformed contacts|acid intrusive rock|||Y||01-MAY-23
Gooragoora Formation|34910|Gooragoora Sandstone Member|7582|||Yes|Formation, beds|Formal|Variation of published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||150|250|WA|No|22905|24183|||||Incorporates the previous Wannery, Chubilyer, Weedoddie and Yeelingee Members of Daniels (1970) and the lower part of the Jillawarra Formation (Chuck, 1984)? Unclear if this applies to Gooragoora Fm. or to Blue Billy Fm.|Medium- to thick-bedded, fine to coarse-grained sandstone and siltstone; minor conglomerate, dolostone and dolomitic siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Gooragoora Formation, Blue Billy Formation, Cheyne Springs Formation|74907|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Edmund Group|34906|||Calymmian||||deposition|Calymmian||||||||No|||||||Informal unit for the Surface Geology of WA 1:1 million scale dataset.  Equivalent to Depositional Package 2 of the Edmund Group in the WA 500K Solid Geology GIS (2008).|Siltstone and mudstone; sandstone and dolostone; locally sulphidic|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Goose Hole Group|23629|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Late Cambrian|||inferred|deposition|Middle Cambrian|||biozone|||700||No|41840||P.E.Playford|16-MAY-83|||525 Ma [basis for numerical age unclear. Timescale unclear. Reference from 1999] . Includes: Negri Subgroup, Elder Subgroup. Ord Basin.|Sandstone, siltstone, minor limestone (in part stromatolitic) and mudstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||21-MAR-23
Gooseneck Member|23630|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Burt Range Formation|3168|||Tournaisian||||deposition|Tournaisian|||||||WA|No|40792|40792|Lee, J.|23-SEP-85||||||||N||17-JAN-23
Gora Hill Suite|79199|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Recherche Supersuite|78595|Ectasian|1280||||Ectasian|1330|||||||No|70182||Spaggiari, C. (GSWA)|23-JUN-15|||Map Sheet=Malcolm SI51-7. Nearest Town=Esperance. Brief description=Series of syenogranitic, monzogranitic,and granodioritic gneisses. Part of Recherche Supersuite. Published in 2015 in Geological Survey of Western Australia Report 150, p33 etc.|Granodiorite, monzogranite and syenogranite gneiss|metamorphosed acid igneous rock|||Y||08-MAY-23
Gordons Gorge Granite|31791|Gordons Gorge|29798|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43853||||||Lissadell 1:250 000 sheet area (east Kimberley region). Age updated by I.Sweet.|Coarse-grained porphyritic biotite(-hornblende) monzogranite and syenogranite; rapakivi-like texture.|acid intrusive rock|||Y||17-JAN-23
Gorge Creek Group|27160|Gorge Creek Formation|7612|||Yes|Group, Suite|Formal|Variation of published name|Defined|De Grey Supergroup|69685|||Mesoarchean|2940||inferred|deposition|Mesoarchean|3066||inferred|deposition||8000|WA|Yes|30485|31853|Hickman A.H., Lipple A.L.|15-JAN-75|WA SNSC|06-JAN-75|Redefined by Van Kranendonk et al (2004).  Age: 3.27Ga. Mallina Basin. Reassigned to De Grey Supergroup from Pilbara Supergroup and including the new unit, Farrel Quartzite (GSWA 03/06). Dating of Farell Quartzite suggests depostional age may be ~3066 Ma  (Pilbara 2014 GIS update). Detrital zircons are considerably older at 3410+\-6 Ma.|Chert, banded iron formation, sandstone, conglomerate.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Gossan Hill Formation|78983|Gossan Hill Group|23633|||Yes|Formation, beds|Formal|Variation of published name|Described|Murchison Supergroup|13501|||Mesoarchean|2947||inferred|deposition|Mesoarchean|2963||inferred||||WA|No|70769||Ivanic, T. (GSWA)|07-JAN-15|||Used in Murchison Domain updates in 2015. Named after Gossan Hill (?mine), Badja 1:100k sheet area. Type area Gossan Hill 28deg 45'S 116deg 58'E. Unconformably overlain by probably Polelle Group units and intruded by Warriedar Suite mafic-ultramafic intrusive units.|Felsic volcanic and volcaniclastic rocks; rhyolitic to dacitic in composition; locally with economic massive sulphide mineralization; metamorphosed.|acid volcanic rock|||N||02-JUN-23
Gossan Valley Member|78984|Gossan Valley Formation|40546|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Gossan Hill Formation|78983|||Mesoarchean||||magmatic crystallisation|Mesoarchean|2959|5|isotopic|||||No|70769||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015.  Type area Gossan Hill, Badja 1:100k sheet area. Intruded by Gnows Nest Granodiorite at the base and conformably overlain by Golden Grove Member.|Quartz-porphyritic rhyolite and felsic volcaniclastic rocks; metamorphosed|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
Government Dam member|80208|Government Dam Grit|80939|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Black Flag Formation|1782|||Archean|||||Archean||||||||No|71166||||||[An informal, probable company name from the Kanowna gold camp]||medium-coarse grained siliciclastic rock|||N||07-AUG-23
Goyder Formation|7646|||||Yes|Formation, beds|Formal|Other new published name|Defined|Pertaoorrta Group|15091|||Furongian|||biozone|deposition|Middle Cambrian|511|20|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|90|600|NT|No|48838|48863|||||Gradationally related to Petermann Sandstone/Deception Siltstone/Cleland Sandstone/Shannon Formation succession below it. Minimum age: Payntonian (~491-488 Ma) based on palynology and trilobites (NTGS Record 2018-010, p iii, p17). Younger radiometric age (505+/-6 Ma) is a maximum depositional age for a sample from the central part of the basin (Henbury) taken from well below the contact with the overlying Pacoota Sandstone and 100s of metres above the contact with the Petermann Sandstone.|Silty sandstone with minor siltstone; fossiliferous and stromatolitic dolostone with minor limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Granites-Tanami Orogen granitic unit 80976|80976|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Granites-Tanami Orogen. Variation of this unit used in subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area (stratno 80977).|Biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Granites-Tanami Orogen metamorphosed igneous felsic unit 80978|80978|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|||inferred||Neoarchean|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Granites-Tanami Orogen. See also variation used in subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area stratno 80979.|Foliated biotite-muscovite-quartz-plagioclase-K-feldspar orthogneiss with thin leucocratic quartz--feldspar interlayers.|metamorphosed acid igneous rock|||Y||17-JAN-23
Granites-Tanami Orogen metamorphosed intrusive mafic rocks 83756|83756|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Granites--Tanami Orogen metamorphosed intrusive mafic unit', P_-mod-GT. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metadolerite; greenschist to amphibolite facies.|metamorphosed basic igneous rock|||Y||30-JAN-23
Granitoid Gneiss|31107|||||Yes|Formation, beds|Informal|Other new published name|Fully described||||||||||||||||||No|43478|||||||||||Y||17-JAN-23
Granny Smith Granodiorite|34939|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean||||intrusion|Neoarchean|2665|4||||||No|22855||||||See also Granny Smith diorite. This age may be the age of zircon xenocrysts derived from the turbidites intruded by the granodiorite.||acid intrusive rock|||Y|I-type|17-JAN-23
Granny Smith Pits carbonatite|83836|||||Yes|Formation, beds|Informal|Other new published name|Unpublished|||||Proterozoic|||||Paleoproterozoic|||inferred|||||No|||||||See discussion in Mueller et al. (2008) p341. East-west-trending dikes of ultramafic lamprophyre and carbonatite, up to 2 m thick, cut all other structures and are considered part of the 2.1-Ga Mt Weld intrusive suite (Ojala 1995). To be used in GA alkaline rocks data compilation and other products.|Ultramafic lamprophyre and carbonatite.|exotic composition igneous rock|||Y||27-APR-23
Grant Group|7696|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Sakmarian|||biozone|deposition|Kasimovian|||biozone||300|2500|WA|No|42613|64971|||||Redefined by Crowe and Towner (1976); redefined again by Apak and Backhouse (1998) reducing the Group to what was the upper Grant Group interval. Retains Hoya, Calytrix and Clianthus Formations of Redfern and Millward (1994), Barbwire Terrace area. Lower Grant Group has been renamed Reeves Formation. See REFID: 64971. Age from rare macrofossils and palynoflora. Produces oil in the Boundary oil field.|Shallow marine to fluvial, and possibly partly glacial, cross-bedded fine to very coarse quartz sandstone, laminated micaceous sandstone, siltstone, mudstone, and minor conglomerate, fossiliferous; wood fragments and bioturbated in places.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||20-SEP-23
Grass Flat Gabbro|76189|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2796|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2820|||||||No|67129||Riganti, A.|24-OCT-11|||Sample dating published in: Wingate, MTD, Kirkland, CL, Riganti, A and Wyche, S., 2011, 185990: metagabbro, Grass Flat Bore; Geochronology Record 868: Geological Survey of Western Australia, 4p. Proposed to be added to Warriedar Suite (Ivanac, Sep2022)|Gabbro; minor leucogabbro, quartz gabbro and pegmatoidal components; metamorphosed|basic intrusive rock|||Y||02-JUN-23
Grave Dam Member|82958|Grave Dam member|80209|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Black Flag Formation|1782|||||||||2668|10|isotopic, U/Pb-Pb/Pb ion probe|||||No|73238||||||Kanowna district, Eastern Goldfields Terrane. See aslo Grave Dam Grit.|Volcaniclastics.||||N||17-JAN-23
Great Boulder Suite|77865|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Neoarchean|||||Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Intrusive mafic sills, dolerite to gabbro; commonly differentiated; c.2680 Ma. Flat REE trend (chondrite normalised); includes Golden Mile Dolerite and Condenser Dolerite. To be published = Geological Survey of Western Australia East Yilgarn update 2013-14, digital product.|Dolerite to gabbroic sills.|basic intrusive rock|||Y||20-AUG-23
Great Northern Granodiorite|83579|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||Thundelarra Supersuite|78988|Mesoarchean|||||Mesoarchean|||||||WA|No|||Ivanic, T. (GSWA)|15-SEP-22||||Granodiorite.|acid intrusive rock|||Y||17-JAN-23
Grebe Sandstone Member|7742|||||Yes|Member, phase|Formal|Resvd name published|Defined|Hibernia Formation|27432|||Lutetian||||deposition|Ypresian|||||||NT|No|41532|42442|||||Also previously referred to as Grebe Formation, Grebe Sands, Grebe Sandstone, Grebe Marl and Grebe Marl Member. Eocene. Grebe Sandstone Member reappears in Geology and mineral resources of the Northern Territory (2013) as basal Member of Hibernia Formation.|Sandstone, minor marl and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Greenbushes Pegmatite|29944|Greenbushes pegmatite|7761|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean||||intrusion|Archean|2527|||||||No|43052|||||||Zoned pegmatite; tantalite-, spodumene-, and cassiterite-bearing.|igneous intrusive rock|||Y||17-JAN-23
Greenfields Gabbro|77864|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Neoarchean|2650||inferred|intrusion|Neoarchean|2726||inferred|||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Differentiated gabbro; cumulate to subophitic textures; hornblende-plagioclase-actinolite; metamorphosed. Sill at the top of the Coolgardie Subgroup. To be published = Geological Survey of Western Australia East Yilgarn update 2013-14, digital product.|Differentiated gabbro; cumulate to subophitic textures; hornblende-plagioclase-actinolite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Greenmont Basalt|77857|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coolgardie Subgroup|77855|||Neoarchean|2699||inferred|eruption|Neoarchean|2726||inferred|||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Basaltic rock; vesicular, with rare pillows; metamorphosed; spinifex-like texture defined by metamorphic actinolite. Kalgoorlie Terrane, Eastern Goldfields Superterrane.|Basaltic rock; vesicular, with rare pillows; metamorphosed; spinifex-like texture defined by metamorphic actinolite|metamorphosed basic igneous rock|||N||01-MAY-23
Greenough Sandstone|7766|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Chapman Group|25841|||Lower Jurassic||||deposition|Lower Jurassic||||||95|WA|No|34134|36293||||||Mottled red and white, medium- to coarse-grained argillaceous sandstone; siltstone, shale, claystone and conglomerate lenses.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Greensleeves Formation|74808|Gabanintha Formation|23604|||Yes|Formation, beds|Formal|Resvd name published|Described|Polelle Group|74804|||Neoarchean|2734|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean|2761|4|isotopic, U/Pb-Pb/Pb ion probe|||5000||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||With Yaloginda Formation, replaces Gabanintha Formation. Geological province: Murchison Domain.|Andesitic, rhyolitic, dacitic volcanic and volcaniclastic rocks; widely intruded by layered mafic-ultramafic sills; weakly metamorphosed.|acid volcanic rock|metasedimentary rock||N||19-JUL-23
Greenvale Porphyry|31879|Greenvale Monzogranite|21909|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43863||||||Bow, Mount Remarkable 1:100k, east Kimberley region. Paperbark Supersuite. Porphyric rock of Castlereagh Hill redefined as Greenvale Porphyry. 1865- 1850 Ma. In the Western Zone of the Lamboo Complex.|Massive quartz-feldspar monzogranite porphyry; medium to coarse phenocrysts of quartz, K-feldspar, and plagioclase.|acid intrusive rock|||Y||17-JAN-23
Gregory Range Suite|73504|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean||||intrusion|Neoarchean|2769|||||||No|64580||||||In the Fortescue Basin.|Metamorphosed and foliated granite, syenogranite, granitic augen gneiss, granophyre, gneissic granophyre and granophyre gneiss. Moderate to strong tectonic foliation.|acid intrusive rock|foliated metamorphic rock||Y||01-MAY-23
Gregory Range Suite - granophyre 75309|75309|||||Yes|Formation, beds|Unnamed|Unnamed published|Described|Gregory Range Suite|73504|||Neoarchean||||intrusion|Neoarchean|||inferred|||||No|63417||||||In the Fortescue Basin. Requested by Songfa Liu, for use on: 'Pre-Permian solid geology map of the Paterson area' Jun-2009.|Granophyre; locally includes gneissic granophyre and granophyric gneiss|acid intrusive rock|foliated metamorphic rock||Y||17-JAN-23
Gregory Well gneiss|33917|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean|||||Archean|3115|||||||No|22449||||||Pilbara. Invalid name. Should not be formalized. Gregory Range Granite has priority.|||||N||17-JAN-23
Grey Member|78696|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Tamala Limestone|17719|||Pleistocene|.074||isotopic, U/Th/He|deposition|Pleistocene|.125|||||||No|69788||Lipar, M. (La Trobe University)|17-FEB-14|||1:100k map sheet = 1936. Nearest Town = Grey.  Fine to coarse grained well sorted aeolianite, yellow coloured, well cemented. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 5 (~125 ka). To be published = This year (2014) in Australian Journal of Earth Sciences.|Consists of an eolian calcarenite/calcrete-microbialite/paleosol cycle.|sedimentary rock|||N||17-JAN-23
Grierson Member|7823|||||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Birdrong Sandstone|1720|||Aptian||||deposition|Neocomian||||||||No|36890|||||||||||N||17-JAN-23
Grimpy Monzogranite|21913|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Syenite Camp Suite|31897|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|23601||Griffin T.J. & Tyler I.M.|09-DEC-92|||East Kimberley Region. Kimberley Province. Part of the Bow River batholith.  Age: 1835-1805Ma. In the Lamboo Complex.|Medium- to fine-grained, even textured or weakly porphyritic biotite granodiorite and tonalite, with lesser biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Grimwade Suite|40137|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Statherian|1791|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1844|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|61405||Green, M.|20-JAN-04|||In the Arunta region - Aileron Province generally weakly to non-magnetic.  Also referred to as Grimwade suite granites. Appears to incorporate diorite and gabbro (highly magnetic, moderate gravity response) of former Borefield Road Suite from 2014.|Fine, medium and coarse-grained, granite, monzogranite, syenogranite; K-feldspar megacrysts, metasedimentary xenoliths.|acid intrusive rock|||Y|I-type|17-JAN-23
Guildford Formation|7854|Guildford Clay|25033|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Pleistocene||||deposition|Pleistocene||||||27|WA|No|30939|31896|||||Stated to be of the Kwinana Group (Abeysinghe 2003) but this is probably incorrect (per email R.Hocking 12 Feb 2008). Underlies the Pinjarra Plain of alluvial fans fronting the Darling Scarp and Darling Plateau. See also probable misspelling - Guilford Formation.|Alluvial sand and clay with shallow-marine and estuarine lenses and local basal conglomerate.|sediment|||N||17-JAN-23
Gumhole Formation|25034|Gumhole formation|7875|||Yes|Formation, beds|Formal|Resvd name published|Defined|Fairfield Group|6483|||Tournaisian||||deposition|Famennian||||||260|WA|Yes|46794|45153|Druce E.C., Radke B.M.||WA SNSC|13-MAY-76|See Defn in B200 (1979) also. Said to include the informal "May River Shale" in the subsurface.|Shallow marine colour laminated and cross bedded fossiliferous limestone interbedded with siltstone and shale, and minor sandstone and dolomite|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Gunanya Sandstone|21919|||||Yes|Formation, beds|Formal|Resvd name published|Described|Tarcunyah Group|31872|||Neoproterozoic|||inferred|deposition|Neoproterozoic|950||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||500||No|43848||Hickman A.|11-JUN-93|||Distribution: Rudall & Gunanya 1:250 000 sheets. Of Yeneena Basin? Formerly assigned to Tarcunyah Group (Grey et al. 2005).|Sandstone; minor conglomerate, siltstone and shale. Medium-to coarse-grained arkosic sandstone; interbeds of coarse-grained, pebbly feldspathic sandstone are common in the top 100m.|siliciclastic sedimentary rock|||N||17-JAN-23
Gunga Meta-argillite|7904|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|34324||||||Probably obsolete. Name last used 1981.|meta-argillite||||N||17-JAN-23
Gurgadi Basalt|7922|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian|1057|6|inferred, overlying unit|eruption|Stenian|1065|5|inferred, underlying unit||500|600||No|30944||||||Bentley Basin (GSWA, 2011).|A succession of amygdaloidal basaltic lavas which contain numerous thin and laterally discontinuous layers, and small successions of volcaniclastic, cherty-epidotitic mudstones, siltstones, sandstones and conglomerates.|basic volcanic rock|||N||17-JAN-23
Gussys zoned pegmatite|25039|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|34723|||||||||||Y||17-JAN-23
Gwalia Slate|7936|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|41677|||||||Slate|metasedimentary siliciclastic rock|||N||17-JAN-23
Gwynne Creek Gneiss|75621|Salt Creek granulites|16569|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Mesoproterozoic|1483|12|inferred||Mesoproterozoic|1533|11||||||No|68186||Spaggiari, C. (GSWA)|03-MAR-10|||Plumridge 1:250k sheet SH51-8. Gwynne 1:100k sheet 3939. Dominantly psammitic gneiss with minor semipelitic layers; includes minor metagranitic rocks, metamafic and meta-ultramafic rocks. Previously the Salt Creek granulites named for a locality originally identified in 1970's GSWA literature as Salt Creek. 250k topographic maps showed this creek was instead called the Gwynne Creek (not Salt Creek) and thus this unit, which outcrops predominantly along the creek was named the Gwynne Creek Gneiss.|Dominantly psammitic gneiss with minor semipelitic layers; includes minor metagranitic rocks, metamafic and meta-ultramafic rocks.|foliated metamorphic rock|metamorphosed igneous rock||N||17-JAN-23
Haig Cave Supersuite|79160|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Calymmian|1389||inferred, intrusive relationship||Calymmian|1415||inferred, intrusive relationship|||||No|70182||Spaggiari, C. (GSWA)|04-AUG-15|||Madura Province.|Metagabbro interlayered with trondhjemitic plagiogranite.|metamorphosed basic igneous rock|||Y||17-JAN-23
Halfway Gneiss|35287|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Siderian|2429||||Neoarchean|2663|||||||No|23527||Sheppard S., Occhipinti S.|01-MAR-00|||Gascoyne region, Glenburgh 1:250 000 sheet area. Granitic gneiss.|Interlayered leucocratic and mesocratic granitic gneiss, pale grey granitic gneiss and foliated metagranite, gneissic to foliated porphyritic metagranodiorite; high-Ca group|foliated metamorphic rock|metamorphosed acid igneous rock||Y||17-JAN-23
Halfway Well Basalt|77945|||||Yes|Formation, beds|Formal|Variation of published name|Described|Mount White Group|78383|||Archean||||eruption|Archean||||||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SG51-13, Sir Samuel 3042. Basalt; fine-grained with local pyroxene-spinifex texture; includes medium-grained layers and lenses; minor interflow sediments; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014. Same rocks may have previously been called Mount White Greenstone?|Basalt; fine-grained with local pyroxene-spinifex texture; includes medium-grained layers and lenses; minor interflow sediments; metamorphosed|metamorphosed basic igneous rock|||N||17-JAN-23
Halls Creek Group|27793|Halls Creek Metamorphics|7991|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Orosirian|1850||isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1880||isotopic, U/Pb-Pb/Pb ion probe|||7000|WA|No|44317|23383|||||See also Tickalara Metamorphics.  Redefined to exclude the Ding Dong Downs Volcanics due to an unconformity. Redefined by Griffin and Tyler (1992) - Geol. of the southern Halls Creek Orogen. Intruded by Woodward Dolerite. There are inconsistencies with the age of Olympio Formation.|Pelitic and psammitic metasedimentary rocks with basaltic and andesitic to trachytic metavolcanic and metavolcaniclastic rock|medium-coarse grained siliciclastic rock|||N||01-MAY-23
Halls Creek Group - migmatite|74411|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Halls Creek Group|27793|||Orosirian|||||Orosirian||||||||No||||||||Migmatitic cordierite-sillimanite pelitic hornfels locally retrogressed to pelitic schist|metasedimentary rock|||U||17-JAN-23
Hamelin Coquina|7999|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Holocene||||deposition|Holocene|.005||isotopic, radiocarbon|deposition||75|WA|No|35105||||||Duplication of name prefix (also used for Hamelin Granite) is acceptable (email R.Hocking 20/11/08) since a great distance separates them and lithologies are vastly different. The oldest part of this unit is only 5316+/-42  years BP based on radiocarbon dating.|Beach ridges, coquina of small Fragum erugatum shells, loose at shorelines and dominantly progressively cemented to coquinite away from coast.|carbonate sedimentary rock|||N||17-JAN-23
Hamelin Granite|40171|Dunsborough Suite|40170|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Leeuwin Complex|10296|||Neoproterozoic||||intrusion|Mesoproterozoic||||||||No|24595||||||Of Myers (1994).  Previously referred to as the Dunsborough Suite (Kay, 1958). Duplication of name prefix (also used for Hamelin Coquina) is acceptable (email R.Hocking 20/11/08) since a great distance separates them and lithologies are vastly different.|Granite gneisses.|metamorphosed acid igneous rock|||Y||17-JAN-23
Hamersley Group|8005|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|Mount Bruce Supergroup|12546|||Siderian|2444|3||deposition|Neoarchean|2629||inferred, underlying unit|||2500||No|44729||||||Upper part deposited between 2470-2440Ma. Age of lower part: c.2600-2500Ma. Includes volcanic units ranging in age: 2597-2449 Ma.|Chert, banded iron-formation, jaspilite, dolomite, mudstone, siltstone. Includes shallow-water reef limestones.|non-carbonate chemical or biochemical sedimentary rock|carbonate sedimentary rock||N||26-JUN-23
Hamersley Group, lower|68611|Hamersley Group|8005|||Yes|Subgroup|Informal|Variation of published name|Briefly described|Hamersley Group|8005|||Paleoproterozoic|||||Neoarchean||||||||No|50216||||||Includes Marra Mamba Iron Formation, Mount McRae Shale, Mount Sylvia Formation, Wittenoom Formation, Carawine Dolomite.|||||N||17-JAN-23
Hamersley Group, upper|80096|Hamersley Group|8005|||Yes|Subgroup|Informal|Variation of published name|Briefly described|Hamersley Group|8005|||Paleoproterozoic|||||Paleoproterozoic||||||||No|69185||||||Includes Boolgeeda Iron Formation, Woongarra Rhyolite, Weeli Wolli Formation, Brockman Iron Formation.|||||N||17-JAN-23
Hamersley Range Megasequence|33838|||||Yes|Clan|Sequence stratigraphy|Other new published name|Mentioned||||||||||||||||||No|22546||||||Turee Creek Basin.|||||N||17-JAN-23
Hampton Hill Formation|77858|Hampton Formation|8031|||Yes|Formation, beds|Formal|Variation of published name|Described|Coolgardie Subgroup|77855|||Neoarchean|2680||inferred|deposition|Neoarchean|2726||inferred|||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Kalgoorlie Terrane, Eastern Goldfields Superterrane. See aslo Hampton Ultramafic.|Komatiite and subordinate basalt; metamorphosed.|metamorphosed ultramafic rock|metamorphosed basic igneous rock||N||20-AUG-23
Hampton Sandstone|25940|Hampton Conglomerate|8029|||Yes|Formation, beds|Formal|Variation of published name|Defined|Eundynie Group|6368|||Lutetian|41|||deposition|Lutetian|42||||||WA|No|65942|32552|||||The basal Tertiary unit in the central Eucla Basin.  Also overlies Gawler Craton in marginal palaeovalleys. Major marine transgression. Contains heavy minerals. See also Hampton Formation. Previously included in the Burdunga Subgroup, Immarna Group.|Poorly sorted limonite-stained sandstone, typically quartz rich; includes subordinate gravel, conglomerate and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Hampton Ultramafic|81987|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Archean|||inferred||Archean|||inferred|||||No|72814||||||West of Zuleika Shear, Coolgardie Domain. [may be the same unit as Hampton Hill Formation?]|Spinifex textured komatiitic flows.|ultramafic volcanic rock|||N||17-JAN-23
Hangover Formation|79014|||||Yes|Formation, beds|Formal|Resvd name published|Described|Marshall Pool Subgroup|79020|||Neoarchean|2680||inferred|deposition|Neoarchean|2726||inferred|||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Weebo Nearest Town = Leonora. Brief description = Mainly contains basalt with minor komatiitic basalt and interleaved felsic volcanic and sedimentary rocks. It is named after Hangover Bore which lies NNW of Leonora. Tobepublished = GSWA digital release (Maps and explanatory notes). Leonora eastern domain, Kalgoorlie Terrane.|Basalt; includes komatiitic basalt with minor interleaved felsic volcanic and sedimentary rocks; metamorphosed.|basic volcanic rock|metasedimentary rock||N||19-SEP-23
Hannans Subgroup|77860|||||Yes|Subgroup|Formal|Variation of published name|Described|Kalgoorlie Group|26647|||Neoarchean|||||Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Basalt and komatiitic basalt interleaved with ultramafic rock; minor mafic intrusive rock; minor interflow sedimentary rock; metamorphosed.Kalgoorlie Terrane, Eastern Goldfields Superterrane. To be published = Geological Survey of Western Australia East Yilgarn update, 2013-14. Digital product.|Basalt and komatiitic basalt interleaved with ultramafic rock; minor mafic intrusive rock; minor interflow sedimentary rock; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||16-AUG-23
Hanns Camp Syenite|41047|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Neoarchean|2664|2||intrusion|Neoarchean|2664|2||||||No|24196|||||||||||Y||17-JAN-23
Hanns Jasper Formation|75581|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||deposition|Neoarchean|2774|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|66113||Hall, Charlotte (GSWA, Kalgoorlie)|07-JAN-10|||Volcaniclastic sandstone dated at 2774 ± 5 Ma found near Hanns Jasper Hill on the Lightfoot 1:100,000 map sheet (3539). Same age as a volcaniclastic sandstone found in the Palkapiti Formation and to c. 2770 ma plutonic rocks of the Minigwal Suite. To be published = 2010 publication of the Lightfoot 1:100,000 geological map by the Geological Survey of Western Australia. Hardcopy map and digital package.|Dacitic volcaniclastic sandstone; crystal- and lithic-rich; metamorphosed.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Hansens Folly Granite|41433|Hansens Folly Gneiss|31904|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||O'Callaghans Supersuite|31858|Neoproterozoic|||inferred, geochemical correlation|intrusion|Neoproterozoic|||inferred, geochemical correlation|||||No|50436||||||Of the O'Callaghans Supersuite.|Coarse-grained biotite syenogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Hansons Bore lamproite|8057|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Harbutt Leucogranite|31779|Harbutt|21944|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Krackatinny Supersuite|31857|Mesoproterozoic||||intrusion|Mesoproterozoic|1310|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|50436||Bagas L., Wyborn L.A.I.|10-MAR-93|||Connaughton 1:100k (Rudall 1:250 000) sheet area. Reservation varied at L.Wyborn's request. Equivalent to -Pgl+-Pgm on Connaughton 1:100k geol. sheet.||acid intrusive rock|||Y||17-JAN-23
Hardey Formation|8075|Hardey Sandstone|8076|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2756|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Neoarchean|2766|2|isotopic, U/Pb||3000|||No|42471||||||Previously Hardey Sandstone. Within the Mount Bruce Supergroup. In Fortescue Basin (2007 Mt Edgar 100K, version 2, refid 65727), Oakover Basin.|Sandstone, siltstone, shale, lithic wacke, mudstone, arkose, calcareous beds, conglomerate; porphyry, porphyry breccia; quartzite; dacitic to rhyolitic lavas; quartz-feldspar-mica schist; boulder breccia; basalt; felsic pyroclastics, ultramafic lava.|sedimentary rock|igneous volcanic rock||N||29-JUN-23
Hardman Formation|8081|Hardman Member|8082|||Yes|Formation, beds|Formal|Variation of published name|Defined|Liveringa Group|25997|||Wuchiapingian||||deposition|Wuchiapingian||||||650|WA|No|33962|45153||||||Fossiliferous shallow marine mottled white red-brown and dark grey micaceous sandstone, siltstone, mudstone, limestone, conglomerate; commonly ferruginised by weathering.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Hargreaves Formation|8091|Hargreaves Member|25044|||Yes|Formation, beds|Formal|Other new published name|Fully described|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||||No|40993|||||||Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Harms Sandstone|27163|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Glidden Group|25926|||Neoproterozoic||||deposition|Neoproterozoic|||||||WA|No|44397|48927|||||In the Glidden Basin.|White pink and purple blocky thinly to thickly bedded fine medium and coarse grained quartz sandstone, purple laminated shale with rare green laminae, and minor thin interbeds of purple siltstone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Harris Sandstone|8099|Red Hill Sandstone""|28957|||Yes|Formation, beds|Formal|Variation of published name|Defined|Lyons Group|28702|||Gzhelian||||deposition|Kasimovian|||||50|332|WA|No|44537|45016|||||See also Harris Sandstone Member, Lexicon, Harris Formation. Contains stem fragments and trunks of Lycopodiopsis. Type section located northwest of Williambury Homestead, 23d48m20sS, 115d05m50sE.|Fine- to coarse-grained quartz sandstone; minor siltstone and (near base) diamictite.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Hart Dolerite|8108|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Statherian|1790|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1797|11|isotopic, U/Pb-Pb/Pb ion probe|||3000||No|44317||||||Defn on Tech File SE/52-5. 1790 Ma. Age: 1800 - 1790Ma. Intrudes King Leopold Sandstone, Kimberley Group as sills. North Australian Craton, Kimberley Basin. Mafic intrusions contain PGE-Au-V mineralisation.|Gabbro, dolerite, diorite, granophyre; pyroxene granophyre differentiate overlies the dolerite and gabbro in some of the thicker sills.|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Hart Dolerite - granophyre|80973|Hart Granophyre|80593|||Yes|Member, phase|Informal|Variation of published name|Briefly described|||Hart Dolerite|8108|Paleoproterozoic|1797|11|isotopic||Paleoproterozoic|1797|11|isotopic|magmatic crystallisation||||No|||||||Published in GSWA Kimberley geological information series 2018 update. Halls Creek Orogen; King Leopold Orogen. Durack Fold Belt; Yampi Fold Belt. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Pink to pale-grey, medium- to coarse-grained granophyre.|acid intrusive rock|||Y||17-JAN-23
Hart Spring Sandstone|8110|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Carlton Group|3629|||Middle Cambrian||||deposition|Middle Cambrian|||||||WA|No|45038|41864|||||See also Lexicon. SD52-10,14. Lithologically correlated with the Eagle Hawk Sandstone (Ord Basin).|Red micaceous quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Harts Range Metamorphic Complex|36822|Harts Range Group|8120|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Ordovician|453|2|isotopic, U/Pb-Pb/Pb ICP-MS|metamorphism|Neoproterozoic|1019|23|isotopic, U/Pb-Pb/Pb ion probe|||||No|23858||||||Was replaced by the Harts Range Group but is to be reinstated in the Illogwa Creek and Hale River 1:250 000 sheet areas. Whelan, J. (NTGS), 31-MAR-2011. Minimum age (of metamorphism)  from constituent unit Entire Gneiss (Beyer et al. 2013).|Supracrustal succession of metamudstone, metagreywacke, metasandstone, metamafic igneous rocks and calc-silicate rocks with subordinate amounts of marble and felsic gneiss.|metasedimentary rock|metamorphosed igneous rock||Y||17-JAN-23
Harvey Formation|39001|Harvey Beds|25944|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Eocene||||deposition|Eocene||||||||No|23880||||||Possibly referring to Hervey Beds (DPSEP03). Province NOT Yilgarn Craton.|||||N||17-JAN-23
Hatches Creek Group|8139|Hatches Creek Formation|8138|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Statherian|1790||inferred, geological correlation|deposition|Orosirian|1820||inferred, geological correlation|||10000|NT|Yes|44944|49033|Blake D.H.|01-JAN-83|Brakel, A.|16-FEB-84|Redefined 1985. See also Lexicon.  Age: c.1820Ma (Page, OZCHRON). In the Tennant Creek Inlier.|Arenite, siltstone, shale; some felsic volcanic rocks and basaltic lava at and near base.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Hatfield Formation|36843|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Mesoarchean||||deposition|Mesoarchean|2958|4|isotopic, U/Pb|||1000||No|23754||||||Uppermost unit in the Carlingup Greenstone Belt|Fine-grained clastic metasediments, minor dacitic metamorphosed volcanic and volcaniclastic rocks, and minor coarse-grained metaclastic rocks interbedded with pelitic rocks.|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
Hawley Member|31475|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Carnac Formation|40564|||Lower Cretaceous||||deposition|Lower Cretaceous||||||666||No|50108||J.Backhouse|28-JUL-97||||||||N||17-JAN-23
Haycock Marl|23645|||||Yes|Formation, beds|Formal|Other new published name|Defined|Winning Group|20259|||Coniacian||||deposition|Turonian||||||302|WA|No|40800|40800|R.M.Hocking, H.T.Moors|23-MAY-83|||Separated from Winning Group (in RefID 14228) on the basis of a minor break, changes in ocean currents, rate of sediment supply and transition to carbonate deposition.|Friable pink bioturbated marl with Chondrites burrows; glauconitic sand and fish debris thicker near base; rare Planolites burrows and chalk infillings towards top.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Hazlett beds|75578|Hazlett Beds|8203|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cretaceous||||deposition|Cretaceous||||||||No|65074||||||Defined 1961 - as Hazlett Beds. Sandstone, siltstone, claystone. Eastern Canning Basin. Described in GSWA Memoir 3 (1990) , SW Birrindudu Basin,  p351, 360, 361. Mesozoic.|Sandstone, siltstone and white claystone|siliciclastic sedimentary rock|||N||17-JAN-23
Headleys Limestone|8205|Headley Limestone|37191|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Negri Subgroup|27520|||Middle Cambrian||||deposition|Middle Cambrian||||||50|WA|No|44965|41840|||||Of the Negri Subgroup (Goose Hole Group). Ord Basin.|Grey massive to laminated limestone; minor chert and stromatolites.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Hearson Cove Monzogranite|68510|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean||||intrusion|Archean||||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.||New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Intruded by 2725Ma Gidley Granophyre. Forms part of c.2990Ma Dampier Granitic Complex.|Monzogranite and syenogranite containing microcline megacrysts up to 5cm long; rock commonly shows a magmatic alignment of microcline phenocrysts, but otherwise massive and non-foliated.|acid intrusive rock|||Y||17-JAN-23
Heavitree Formation|8223|Heavitree Quartzite|8225|||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Tonian|||inferred|deposition|Tonian|||inferred|deposition|||NT|Yes|34186||Normington, V.J., Donnellan, N. (NTGS)|11-FEB-16|Whelan, J., Normington, V.|15-JUN-16|Probably an accidental misspelling of Heavitree Quartzite when first used, but unit redefined in 2016 from Heavitree Quartzite to Heavitree Formation due to the recognition that the rocks of the unit are silicified sandstone rather than a quartzite. Detrital zircon analysis suggests a maximum depositional age of 1050 to 1000 Ma (Camacho et al 2002, Maidment 2005, Maidment et al 2007; Kositcin et al 2014). It is thought that the Heavitree Formation sits in the Cryogenian subdivision of the Neoproterozoic (e.g. Grey 2005). Amadeus Basin, Centralian Superbasin.|Fine-, medium- or coarse-grained, planar and cross-bedded, variably feldspathic quartzose sandstone, pink, grey, pinkish-brown, purple or white weathering, and rare laminated mudstone or conglomerate intervals.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Heavitree Formation and Bitter Springs Group|80966|Heavitree Quartzite, Bitter Springs Formation|68372|||Yes|Supergroup|Informal|Variation of published name|Redefined|||||Tonian|||inferred||Tonian|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Informal grouping of units to suit map scale. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Quartz sandstone, sandstone and conglomerate, dolomite, stromatolitic dolomite and siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Hebe Shale|8238|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||deposition|||||||||No|38936|||||||Shale|siliciclastic sedimentary rock|||N||17-JAN-23
Heines Member|30235|||||Yes|Member, phase|Formal|Resvd name published|Defined|Wilthorpe Formation|30236|||Paleoproterozoic|1800||inferred|deposition|Paleoproterozoic|1996||inferred||||WA|No|65408|65419|Pirajno F.|19-OCT-94|||Glengarry Basin. See also Heines Formation (published 1995). Ages inferred from Wilthorpe Formation and Padbury Group.|Upward-fining succession of polymictic conglomerate with a carbonate matrix, lithic wacke, sandstone, quartz-hematite schist and quartz-sericite-hematite schist.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Helicopter Siltstone|8259|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ediacaran||||deposition|Cryogenian||||||330|WA|No|44317|45047|||||Defn on Tech File SE/52-6.  Age considered to be ~800 Ma, Cryogenian, in 1999. More recently considered Ediacaran.|Micaceous siltstone, fine- to medium-grained sandstone, mudstone|fine grained siliciclastic rock|||N||17-JAN-23
Henley Sandstone Member|21955|||||Yes|Member, phase|Formal|Resvd name published|Defined|Osborne Formation|14663|||Albian||||deposition|Aptian|||||||WA|No|12759|12759|Davidson W.A.|29-NOV-94|||For use in Perth Basin. Bulletin to be published early 1995. See informal Henley Sandstone.|Sandstone, dark greenish-brown and glauconitic; minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Henry River Formation|8272|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|29845||||||Not to be confused with Henry River nomenclature in NSW - Henry River Granite.|||||N||17-JAN-23
Henry-Telfer Granite|8274|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|40089|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Hensman Sandstone|8279|||||Yes|Formation, beds|Formal|Variation of published name|Described|Carr Boyd Group|3663|||Stenian||||deposition|Ectasian||||||120||No|44363||||||Age updated by I.Sweet.|Massive, silicified white quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Hercules Gneiss|79291|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Neale Supersuite|81033|Paleoproterozoic|1780||||Neoarchean|2692|16|isotopic, U/Pb|||||No|70182||Spaggiari, C. (GSWA)|18-NOV-15|||Location: Neale  SH51-04sheet area. Metadiorite and quartz metamonzodiorite gneiss; locally intruded by Paleoproterozoic granite and mafic rocks. Age: 2795-1780 Ma Tectonic Unit hierarchy: Tropicana Zone, Kepa Kurl Booya Province, Albany-Fraser Orogen. Publications:  Kirkland, CL, Spaggiari, CV, Smithies, RH, Wingate, MTD, Sweetapple, MT, Watkins, R, Tessalina, S and Creaser, RC 2015, Temporal constraints on magmatism, granulite-facies metamorphism, and gold mineralization of the Hercules Gneiss, Tropicana Zone, Albany-Fraser Orogen: Geological Survey of Western Australia, Record 2015/5, 33p.|Metadiorite and quartz metamonzodiorite gneiss; locally intruded by Paleoproterozoic granite and mafic rocks.|metamorphosed igneous rock|||Y||25-SEP-23
Herschel Limestone|8300|Herschell Limestone|25054|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|Kwinana Group|25141|||Holocene||||deposition|Holocene|||||||WA|No|42473||||||There is an intention to amend the spelling of the Herschell Limestone to this spelling, to match the changed spelling of the topographic feature. This is to be published as a GSWA report [advice R. Hocking 5-Jun-2015, updated by Sarah Martin, Peter Haines 17-May-2021]. Type Section: SW of Mount Herschell 31o59'45''S 115o31'30''E.  3m thick.|Fossiliferous limestone and unlithified shell beds. Weakly lithified coquinite, lime sand, marl.|regolith|||N||17-JAN-23
Hester granite|28604|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39161|||||||Granite|acid intrusive rock|||Y||17-JAN-23
Hibberson Dolomite|26612|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Crowhurst Group|4951|||Mesoproterozoic||||deposition|Mesoproterozoic|1500|||||||No|44397||||||In the Crowhurst Basin. Age: c.1500Ma?|Pink to yellow massive, thinly bedded to laminated and possibly stromatolitic dolomite, minor interbeds of sandy oolitic dolomite breccia and fine dolomitic sandstone|carbonate sedimentary rock|||N||17-JAN-23
Hibernia Formation|27432|Hibernia Beds|8320|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Woodbine Group|20481|||Eocene|42|||deposition|Eocene|50|||||1200||No|41437||||||Grebe Sandstone Member reappears as basal Member of this unit, in Geology and mineral resources of the Northern Territory (2013).|Limestone, sandstone; minor shale and marl.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Hickey Ricken Granite|41911|||||Yes|Formation, beds|Reserved|Reserved|Described|||||||||intrusion|||||||||No|70156||Wyche, S., Riganti, A., Chen, S.F.|21-OCT-04|||To be used on the JACKSON 1:100 000 sheet (SH 50-12/2737) as included in the CY-GIS (Central Yilgarn-Geological Information Series) digital package to be released in 2005 by GSWA.|The intrusion has a very limited exposure, but it is clearly distinguishable on aeromagnetic images; Granite, undivided|acid intrusive rock|||Y||17-JAN-23
Hickies Bore Basalt|77936|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||eruption|Archean||||||525||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1, Wildara 3041. Basalt; fine-grained with local pyroxene-spinifex texture; includes fine-grained metamafic rock. To be published = GSWA geological map and explanatory notes, 2013/2014.|Basalt; fine-grained with local pyroxene-spinifex texture; includes fine-grained mafic schist.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Hicks Range Sandstone Member|8324|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Hardman Formation|8081|||Wuchiapingian|||inferred, overlying unit|deposition|Wuchiapingian|||inferred, underlying unit|||325|WA|No|33962|33962||||||Sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Hidden Basin beds|75577|Hidden Basin Beds|8326|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Mesoproterozoic|1570||inferred, structural relationship|deposition|Paleoproterozoic|1630||inferred||||WA|No|65074||||||Defined as Hidden Basin Beds 1976. Described in GSWA Memoir 3 (1990) , SW Birrindudu Basin,  p351, 353, 357. Neoproterozoic. North Australian Craton.NTGS follows Memoir 3.  More recently GSWA shows this unit as Mesoproterozoic & significantly older than Murraba Basin. For more information, see Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35. See also: Haines, PW (partial report), Hidden Basin beds (P_-_hi-ss): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 02 May 2019, <www.dmp.wa.gov.au/ens>|Quartz sandstone, sublithic sandstone, shale and siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Hidden Secret Sandstone|80117|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|71212||||||Lawlers Prospect. Probably informal mine site nomenclature.||siliciclastic sedimentary rock|||N||17-JAN-23
Higginsville Subgroup|80425|||||Yes|Subgroup|Reserved|Reserved|Reserved||||||||||||||||||No|||Sapkota, J. (GSWA)|31-JAN-18|||On Cowan 3234, Widgiemooltha SH51-14. The Higginsville Subgroup will be part of the Kalgoorlie Group and comprise the Woolyeenyer and Mount Kirk Formations.  To be published in GSWA series map release 2018 and explanatory notes, 2018-2020.|Mafic to ultramafic rocks; minor interflow sedimentary rock; metamorphosed.|basic igneous rock|ultramafic igneous rock||N||17-JAN-23
High Cliff Sandstone|8332|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Artinskian||||deposition|Sakmarian||||||150|WA|No|45001|36293|||||See also Lexicon. SG50-6. (Clarke et al., 1951). See also Highcliff Sandstone.|Fine-grained quartz sandstone, subordinate interbeds of coarse-grained sandstone, conglomerate, and shale.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||23-MAR-23
High Cliff Sequence|80014|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Mentioned|||||Artinskian|||||Sakmarian||||||||No|69297||||||Offshore Perth Basin.|||||N||17-JAN-23
Highway Formation|79355|Highway Ultramafics|8339|||Yes|Formation, beds|Reserved|Variation of published name|Described|Broad Arrow Subgroup|79354|||Archean||||deposition|Archean||||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies within the Bardoc and Kalgoorlie 1:100K map sheet areas.The Highway Formation (previously Highway Ultramafics), has been reassigned to Broad Arrow Subgroup, which sits within the Kalgoorlie Group in the Eastern Goldfields Superterrane of the Yilgarn Craton. To be published = GSWA digital release 2016.|Komatiite and komatiitic basalt; ultramafic, mafic and felsic schist; minor peridotite.|ultramafic volcanic rock|metamorphosed ultramafic rock||N||17-JAN-23
Hilda Rhyolite|8341|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian||||eruption|Stenian||||||||No|30944||||||Bentley Basin.|Massive, spherulitic or porphyritic rhyolite; minor trachyte and dacite; vitric lavas.|acid volcanic rock|||N||17-JAN-23
Hilfordy Formation|8342|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Crowhurst Group|4951|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44397||||||In the Crowhurst Basin. Crowhurst Group (Mesoproterozoic)|Interbedded purple and white flaggy and blocky, partly glauconitic fine and coarse quartz sandstone, purple thinly flaggy ferruginous siltstone and purple laminated shale|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Hill River Coal Measures|21963|||||Yes|Group, Suite|Informal|Resvd name published|Mentioned|||||||||deposition|||||||||No|43297||Mory A.J.|16-JUL-90|||Advised of use in widely circulated but unpublished report (R.Hocking)||organic rich sedimentary rock|||N||17-JAN-23
Hills Cone Lamproite|8352|Hills Cone lamproite|8353|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Hillside Adamellite|8360|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|37633|||||||Adamellite|acid intrusive rock|||Y||17-JAN-23
Hinckley Range Gabbro|8376|||||Yes|Formation, beds|Formal|Other new published name|Described|||Giles Suite|74611|Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|30386||||||Of Giles Complex. See also informal Hinckley Range intrusion. Connected to Wingellina Hills intrusion.|Gabbro, gabbronorite.|basic intrusive rock|||Y||17-JAN-23
Hines Hill carbonatite|83851|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Proterozoic|||||Proterozoic||||||||No|||||||Two large magnetic anomalies plus strong REE geochemical anomalies may be indicative of carbonatite intrusives [undated announcement by White Cliff Minerals, but likely 2022] .  Suspected carbonatite however not yet drilled . See also: https://app.sharelinktechnologies.com/announcement/asx/ce8622db07895da200d17fed2a8d8345 RefID|Carbonatite indicated by magnetic anomalies plus REE geochem.|exotic composition igneous rock|||Y||12-SEP-23
Hodgson Sandstone|8410|Hodgson Sandstone Member|27800|||Yes|Formation, beds|Formal|Other new published name|Defined|Collara Subgroup|35509|||Ectasian||||deposition|Calymmian|||||7.7|266|NT|No|40701|24303|||||Unit upgraded to Formation in Arnhem Bay-Gove and Urapunga areas 1997, 1998 - as a unit of Collara Subgroup (Roper Group) in Urapunga-Roper River region. May have been downgraded again to Member in 2010 (as shown on Walhallow 1:250 000 sheet?|Quartz sandstone: grey to pink, fine to very coarse grained, medium to very thick bedded, trough cross-stratified, ripple marks, mud rip-up clasts|siliciclastic sedimentary rock|||N||06-SEP-23
Hogarth Formation|8415|||||Yes|Formation, beds|Formal|Variation of published name|Described|Tollu Group|18269|||Stenian|1026|26|inferred|magmatic crystallisation|Stenian|1068|7|isotopic|||||No|30942||||||Of the Bentley Supergroup, Bentley Basin. Although a recent reference [?] suggests this is an Amadeus Basin unit, the parent units (Tollu Group, Bentley Supergroup) have variously been assigned to the Officer Basin and Musgrave Province [CEBSept2009]. It is most likely that the 1026 +/- 26 Ma dacite, originally believed to be Smoke Hill Volcanics, represents a subvolcanic sill that intruded into the Smoke Hill Volcanics (either belonging to the Hogarth Formation, or to an event that post-dates this formation).|Andesitic to trachytic lavas; rare trachyandesite to dacite; laminated felsic volcanic siltstone and lesser sandstone; porphyritic aphanitic rhyolite; felsic volcanic-pebble breccia; metagabbro, massive with sub-ophitic texture.|intermediate volcanic rock|metamorphosed igneous rock||N||17-JAN-23
Holmwood Sequence|80015|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Briefly described|||||Sakmarian|||||Sakmarian||||||||No|69297||||||Offshore Perth Basin, Beagle Ridge area.|||||N||17-JAN-23
Holmwood Shale|8432|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Sakmarian||||deposition|Asselian||||||566|WA|No|44998|36293|||||Of Clarke et al., 1951. See also Lexicon. 1993 ref says Fossil Clifff Member includes Artinskian microvertebrate fossils. Originally listed as in SA too. SA probably wrong.|Green to grey shale and siltstone with thin limestone beds, sporadic glacial erratics and cannonball concretions; marine.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Holstein Jaspilite Member|8438|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Homeward Bound Granite|72356|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Callina Supersuite|68674|Paleoarchean|3466|||intrusion|Paleoarchean|3466|2||||||No|63417||Hickman, A. (GSWA)|09-AUG-06|||To be used on MARBLE BAR map sheet; nearest town is Marble Bar. To be published:  Van Kranendonk, M. et al - approx. 21 August 2006 - Geology and mineralization of the east Pilbara - a field guide/GSWA Record 2006/16.|Alkali-feldspar granite, local older diorite and granite; granitic dykes; intrusive rhyolite and dacite; granodiorite; interlayered granite and amphibolite; metamorphosed|acid intrusive rock|||Y||17-JAN-23
Honeyeater Basalt|28109|Honeyeater Formation|8455|||Yes|Formation, beds|Formal|Variation of published name|Defined|Soanesville Group|70124|||Mesoarchean||||eruption|Mesoarchean|3180||||1000|2000|WA|No|31853|31853|||||Reassigned from the Gorge Creek Group to Soanesville Group (GSWA 03/06).|Massive and pillowed basalt and komatiitic basalt; locally vesicular; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Honeymoon Well ultramafic complex|37897|||||Yes|Group, Suite|Informal|Other new published name|Mentioned||||||||||||||||||No|24135||||||Informal name.|Ultramafic rocks|ultramafic igneous rock|||N||17-JAN-23
Hong Kong Chert|8463|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Archean|3000|||deposition|Archean|||||||WA|Yes|30766|30766|Fitton M.J., Horwitz R.C., Sylvester G.|23-JUN-75|WA SNSC|01-APR-76|Age > 3000 my|Chert|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Honman Formation|8465|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Mesoarchean|2903|5|isotopic, U/Pb-Pb/Pb ion probe|eruption|Mesoarchean|2922|4|isotopic, U/Pb-Pb/Pb ion probe|||1200|WA|No|30969|31093|||||Of the Lake Johnston Greenstone Belt. Age 2921 +/- 4 Ma and 2903 +/- 5 Ma, from strata below and above the komatiite layer. Also 2930 - 2875 Ma (Mole et al 2012; Wang et al 1996).|Chert, banded iron-formation and siliciclastic sedimentary rocks; metamorphosed|metasedimentary non-carbonate chemical or biochemical rock|metasedimentary siliciclastic rock||N||17-JAN-23
Hooper Complex|8469|||||Yes|Group, Suite|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Orosirian|1860||||Siderian|2500|||||||No|44155||||||Yampi and Lennard River 1:250 000 sheet areas, West Kimberley region. Maximum Age: 2500 Ma. To be revised for use as a province - R.Hocking 18-AUG-2010.|Metamorphic rocks and granites.|metamorphic rock|acid intrusive rock||Y||17-JAN-23
Hooper West lamproite|8470|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Hope Campbell Orthogneiss|75921|||||Yes|Formation, beds|Formal|Other new published name|Described|||Minigwal Suite|75920|Neoarchean||||magmatic crystallisation|Neoarchean|2769|8||||||No|66113|||||||Migmatitic quartz-biotite orthogneiss.|metamorphosed igneous rock|||Y||17-JAN-23
Hopetoun Jaspilite Member|8485|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||Jaspilite||||N||17-JAN-23
Horan's Line gabbro|8488|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|41249||||||Misspelt & informal. Formal name would be Horans Line Gabbro.||basic intrusive rock|||Y||17-JAN-23
Horn Valley Siltstone|8493|Horn Valley Formation|8491|||Yes|Formation, beds|Formal|Variation of published name|Defined|Larapinta Group|10184|||Middle Ordovician|468||biozone|deposition|Lower Ordovician|487|12|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||429|NT|No|48863|69438|||||Probably equivalent to Indulkana Shale. Hosts the Mereenie oil and gas and Palm Valley gas fields. Has unconventional shale gas and oil potential. Originally Horn Valley Beds. Fossil assemblage is Bendigonian.|Green laminated siltstone with fine sandstone interbeds, fossiliferous limestone; mud-rich sedimentary rock containing an abundance of fossils; rich petroleum source.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Horse Paddock Leucogranite|80118|Horse Paddock granite|72461|||Yes|Formation, beds|Formal|Other new published name|Briefly described||||||||||||||||||No|71212||||||Unclear if this is intended as a formal name or not.|Medium-grained, weakly foliated and leucocratic granite with a very low abundance of mafic minerals.|acid intrusive rock|||Y||17-JAN-23
Horseshoe Formation|27801|Horseshoe Beds|8503|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bryah Group|29869|||Orosirian|1800||inferred|deposition|Orosirian|2014||inferred, underlying unit|||1000|WA|Yes|35975|65419|Gee R.D.|14-AUG-79||14-SEP-79|Previously assigned to Padbury Group. Defined in 1979 as part of Glengarry Group. Now part of Bryah Group, first in Glengarry Basin stratigraphy of Pirajno and Occhipinti, now in Bryah Basin (1998, 2000). See also Horseshoe Range Beds.|Ferruginous, chloritic shale, and quartz--feldspar wacke; partly manganiferous and calcareous; includes iron formation and chert|non-carbonate chemical or biochemical sedimentary rock|medium-coarse grained siliciclastic rock||N||01-MAY-23
Horseshoe Supersequence|81532|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Briefly described|||||Orosirian|2008||inferred, intrusive relationship|maximum depositional age|Rhyacian|2145||inferred, structural relationship|||||No|71112||||||Seems to be the same as the Horseshoe Basin, which overlies the Turee Creek Basin (and Group). See also Shingle Creek Group.|||||N||17-JAN-23
Horsewater Soak Calcarenite|74627|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene|||||Holocene||||||3.5|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. There are no radiocarbon ages derived from this Formation, but ages of 5500 +/- 160 yrs BP, 5590 +/- 240 yrs BP and 6910 +/- 180 yrs BP from underlying calcarenites demonstrate its Holocene age.|A fine to medium sand-sized bioclastic and quartzose and locally oolitic calcarenite.  The cementing agent is sparry calcite.  The limestone is laminated, cross-laminated, cross-bedded, to large-scale festoon-bedded.|carbonate sedimentary rock|||N||17-JAN-23
Hotham Formation|23655|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Saddleback Group|16497|||Archean||||deposition|Archean|||||||WA|No|33800|33800|J.H.Lord|05-AUG-75|||Defined 79/04653 p138. Yilgarn Block. See also Ordovician Hotham Formation (VIC). In RefID 73116, (GSWA (2020), 1:500 000 Interpreted Bedrock Geology of Western Australia, this unit is included within unnamed unit 'South West Terrane greenstones', A-md-YSW. Unclear if the parent Saddleback Group is still current.|Well banded, silty metasediments, with minor pyroclastic units.|metasedimentary rock|acid volcanic rock||N||23-MAR-23
Hoult Sandstone Member|76029|||||Yes|Member, phase|Formal|Resvd name published|Described|Peron Sandstone|15071|||Pleistocene|.12||biozone|deposition|Pleistocene|.13||biozone|deposition|||WA|No|69558||Playford, P., Hocking, R. (GSWA)|27-JUL-11|||Phil Playford is proposing to use the name Hoult Member of the Peron Sandstone for a unit of fossiliferous sandstone exposed on the south side of Faure Island. The fauna shows that it was deposited during the last interglacial period of the Pleistocene, about 120 000 to 130 000 years ago. The name is taken from Hoult Landing on Faure Island, which was named after the Hoult family, who had owned the Faure Island pastoral lease for many years. Playford and Berry (2002) in an unpublished report had used the name 'Faure Member' for this unit, but this is inappropriate as Hocking et al (1987) and later Iasky and Mory (1999) had already applied the name Faure Formation for a Lower Devonian unit in this area. To be published: GSWA report or bulletin in the next year to 18 months.|Fossiliferous, reddish-yellow, calcareous sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Hovea Member|38357|||||Yes|Member, phase|Formal|Resvd name published|Described|Kockatea Shale|9696|||Olenekian||||deposition|Changhsingian||||||27.7||No|60420||Thomas, B.|30-MAY-03|||Dongara, WA. Forms the impermeable cap rock for the Dongara Sandstone.|Fossiliferous black mudstone, sandy siltstone and shelly storm beds. Limestone, laminated mudstone.|fine grained siliciclastic rock|||N||17-JAN-23
Howes Hill Lamproite|8535|Howes Hill lamproite|8536|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||Lamproite||||Y||17-JAN-23
Hoya Formation|31465|||||Yes|Formation, beds|Formal|Resvd name published|Described|Grant Group|7696|||Sakmarian|||biozone|deposition|Asselian|||biozone|||250|WA|No|43823||Redfern R., Apak N., Backhouse J.|27-MAY-97|||Barbwire Terrace area.|Basal thick diamictites, mudstones and dropstones and massive sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Hughes Dolerite|38797|Hughes Formation|8559|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|23926|||||||Dolerite|basic intrusive rock|||Y||17-JAN-23
Humpback Leucogranite|80119|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|2595||isotopic, Rb/Sr||Neoarchean|||inferred|||||No|71212||||||Probably not intended as formal name.|Generally massive, medium to coarse-grained, sporadically muscovitic, leucocratic granite with no foliation.|acid intrusive rock|||Y||17-JAN-23
Hussar Formation|8604|Hussar beds""|68828|||Yes|Formation, beds|Formal|Other new published name|Fully described|Buldya Group|33826|||Neoproterozoic|760|||deposition|Neoproterozoic|800|||||897||No|41751|||||||Sandstone, dolomite, limestone, siltstone, shale, mudstone, stromatolitic dolostone, evaporitic mudstones.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Hyland Bay Subgroup|77685|Hyland Bay Sub-group|74045|||Yes|Subgroup|Formal|Resvd name published|Described|Kinmore Group|9623|||Changhsingian|||||Roadian||||||||No|69452||Edwards, D. (GA) after Gorter, J.D. 1998|21-DEC-12|||Bonaparte Basin, Petrel Sub-basin. Age: Kungurian-Ufimian to latest Permian. Includes Torrens, Pearce, Cape Hay, Dombey and Tern Formations (after Gorter et al. 2009). This version of the name is preferred by Geoscience Australia. See also information under Hyland Bay Sub-group and Hyland Bay Formation.|Mudstone, siltstone, sandstone and carbonate rocks.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Ida Hill Complex|40767|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean|2658|9|||Archean||||||||No|24494||||||Kurnalpi Terrane.|Basaltic andesite and associated hyaloclastites; andesitic conglomerates, breccias and sandstone; andesite-dacite, variably porphyritic and amygdaloidal; fine-grained sedimentary rocks, chert, minor banded iron formation.|intermediate volcanic rock|siliciclastic sedimentary rock||N|I-type|17-JAN-23
Ilgarari Formation|25955|Ilgarari Beds|28246|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collier Group|34907|||Stenian|1070||inferred, intrusive relationship|deposition|Ectasian|1211||inferred, isotopic correlation|||680|WA|No|36551|24183|||||Incorporates Kurabuka Formation of the Mucalana Subgroup (Bangemall Group). Collier Basin.|Greenish-grey to black, parallel-planar laminated, pyritic and carbonaceous siltstone, locally silicified. Thin interbeds of sandstone occur in upper parts; also includes chert (silicified lutite), minor limestone and calcareous siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Illaara Formation|78638|Illaara quartzites|40782|||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||deposition|Mesoarchean||||||||No|69152||||||Includes unnamed subunit. Illaara greenstone belt, Southern Cross Domain, Youanmi Terrane. Probably formalises Illaara quartzites.|Quartzite and quartz-rich metasedimentary rock; locally fuchsitic; includes subordinate quartz-muscovite schist and ferruginous intercalations; sandstone, with minor siltstone and pebbly sandstone; metamorphosed.|metasedimentary siliciclastic rock|||N||17-JAN-23
Illagie Iron-Formation Member|8652|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|38978|||||||Iron formation||||N||17-JAN-23
Illgalara Monzogranite|75776|Illagalara Monzogranite|74844|||Yes|Formation, beds|Formal|Variation of published name|Described|||Jungar Suite|74834|Neoarchean||||intrusion|Neoarchean||||||||No|68561||Van Kranendonk, M. (GSWA), Riganti, A. (GSWA)|14-OCT-10|||Geological province: Murchison Domain.  Age: ?2645Ma. Name misspelt when first reserved and published. See also misspelt Illigalara Monzogranite.|K-feldspar-megacrystic monzogranite and equigranular granitic rock; locally laminated; metamorphosed|metamorphosed acid igneous rock|||Y||01-MAY-23
Illimbirrie Formation|8665|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Archean||||deposition|Archean||||||||No|30949|||||||||||N||17-JAN-23
Illjarra Sandstone|30206|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Ruby Plains Group|30278|||Cryogenian||||deposition|Tonian||||||1000|WA|Yes|43303|23621|Blake D.|26-MAR-96|Hocking, R.|22-APR-99|East Kimberley, Gordon Downs 1:250 000 sheet area. Previously mapped as part of Mount Parker Sandstone & Wade Creek Sandstone but younger age now recognized.|Lithic sandstone, minor siltstone and dolomite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Ilma Formation|8669|Ilma Beds|8668|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buldya Group|33826|||Cryogenian||||deposition|Cryogenian||||||||No|41751||||||Correlated with Neale Formation.|Oolitic dolomite, stromatolitic and sandy; minor limestone, chert, and sandstone, shaly with evaporite pseudomorphs in subsurface.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||23-MAR-23
Ilurpa suite|77240|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Pitjantjatjara Supersuite|39078|Stenian|||||Stenian|1188|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|66256|||||||A-type. Yb-enriched, within-plate granite.|acid intrusive rock|||Y|A-type|17-JAN-23
Ima Ima beds|75572|Ima Ima Beds|8671|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|65074||||||Defined as Ima Ima Beds in 1977. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 352, 355. May be lateral equivalent of Birrindudu Group. Mesoproterozoic.|Predominantly sandstone-medium to thin bedded, medium to coarse-grained sublithic arenite and quartz arenite, cross bedding and scattered pebbles common. Minor lenses and bands of conglomerate.  Local shearing and quartz veining|medium-coarse grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Imbin Porphyry|81547|Imbin rhyodacite|41202|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tooloo Group|79474|||||||||1990|6||||||No|71484||||||Included in Yelma Formation by Sheppard et al.( 2016). Part  of Tooloo Group.|Felsic volcanics and felsic porphyry.|acid volcanic rock|||Y||17-JAN-23
Impey Granite|31766|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|43835|||||||Heterogenous coarse-grained, porphyritic to equigranular amphibolite-facies monzogranite.|acid intrusive rock|||Y||17-JAN-23
Indee Suite|40281|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||Sisters Supersuite|68741|Mesoarchean|2945||||Mesoarchean|2954|||||||No|61253||Van Kranendonk, M.|19-FEB-04|||Collective name for intrusive rocks in Mallina Basin; includes a suite of high-Mg diorite (sanukitoid) intrusions (Smithies & Champion 2000), Northern Pilbara Craton. Age: >2.9Ga. Informally named "Pilbara high-Mg diorite suite". Intrudes De Grey Supergroup.|High-Mg diorite (sanukitoid) intrusions. Massive to moderately foliated, mesocratic, hornblende-biotite granodiorite+tonalite and hornblende-biotite(-clinopyroxene) granodiorite are the most common rocks; range from equigranular to seriate to porphyritic.|acid intrusive rock|||Y||17-JAN-23
Indulkana Shale|8684|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Munda Group|34767|||Upper Ordovician|438|10||deposition|Upper Ordovician|460|15||||60||No|31698|23282||||||Shale, maroon, minor green, calcareous; thin white flaggy siliceous sandstone interbeds; rare limestone lenses. Rippled, desiccated, bioturbated|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Ininti Granite|42375|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Statherian|1688|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1691|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|61387||Close, D.|13-DEC-04|||Mount Rennie 1:250, 000 map sheet (SF52-15). Age: 1688Ma.|Foliated, porphyritic granitic gneiss; may include syenogranitic gneiss with metasedimentary xenoliths.|metamorphosed acid igneous rock|||Y||17-JAN-23
Iowa Eastern Member|40331|||||Yes|Member, phase|Formal|Other new published name|Described|Marillana Formation|37720|||Miocene||||deposition|Chattian||||||20||No|24573|||||||Comprises clay and channel iron deposits with granule to pebble conglomerate at base.|regolith|||N||17-JAN-23
Iron King Member|8774|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Irregully Formation|8786|Top Camp Dolomite|18418|||Yes|Formation, beds|Formal|Other new published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||350|2000|WA|No|44319|24183|||||Of Daniels (1966), a revision of Top Camp Dolomite. Originally included all units below Kiangi Creek Formation. Revised by Chuck (1984) and Copp (1998); now includes only the lower dolostone interval (Wongida Dolomite Member) of original Irregully Formation.|Stromatolitic dolostone, massive dolostone, parallel-laminated dolomitic siltstone, siltstone, silty sandstone, quartz sandstone, and conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Irregully Formation, Yilgatherra Formation|74906|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Edmund Group|34906|||Calymmian||||deposition|Statherian||||||||No|||||||Informal grouping of basal Edmund Group units.  Equivalent to Depositional Package 1 of the Edmund Group in GSWA 500K Solid Geology GIS (2008)|Stromatolitic and non-stromatolitic dolostone, dolomitic siltstone, sandstone, siltstone, and conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Irwin River Coal Measures|27166|Irwin River Coal measures|8789|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Artinskian|283.5||inferred, biostratigraphic correlation|deposition|Artinskian|290.1||inferred, biostratigraphic correlation|||307|WA|No|44657|36293|||||See also Lexicon. SH50-1,5,9,10. (Clarke et al., 1951).|Interbedded very coarse to fine grained sandstone, claystone, siltstone, shale (commonly carbonaceous), and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||23-MAR-23
Irwin River Sequence|80016|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Mentioned|||||Artinskian|||||Artinskian||||||||No|69297||||||Offshore Perth Basin, Abrolhos Sub-basin, Beagle Ridge.|||||N||17-JAN-23
Isabella Member|36833|Isabella Formation|8796|||Yes|Member, phase|Formal|Variation of published name|Described|Jeerinah Formation|8896|||Archean||||deposition|Archean||||||200||No|23745||||||Possibly replacing Isabella Formation?  In the Gregory Range Inlier.|Consists of brown-weathering, grey to blue, fine-grained or porphyritic rhyolite, characterised by small spherical amygdales of quartz, chlorite and carbonate; Fine-grained, massive rhyolite; quartz or carbonate amygdales; possible intrusion|acid volcanic rock|||N||17-JAN-23
Isdell Formation|8799|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Throssell Range Group|70719|||Neoproterozoic|858|29|isotopic, Pb/Pb isochron age|diagenesis|Neoproterozoic|||||1000|2000||No|33849||||||Of the Paterson Orogen. Yeneena Supergroup. Previously of Lamil Group (until ~2004).|Thinly bedded carbonate rocks, calcareous siltstone, minor shale, local sulphidic dark grey or pale grey-cream carbonate rock and shaley calcarenite, sandstone, conglomerate|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Isle Road Breccia|73503|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Isolated Hill Granodiorite|39351|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2681|4|isotopic, Pb/Pb|||||No|24091|||||||Granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Jack Hills Group|8821|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described||||||||||||||||||No|46456|||||||||||N||17-JAN-23
Jack Hills metaconglomerate|38636|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Archean||||deposition|Archean||||||||No|23785|||||||||||N||17-JAN-23
Jacko Monzogranite|78639|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|69152||||||Mentioned in geochron file 104975.1.pdf (1997?) as of Mulgabbie Pluton. Does GSWA intend to formalise this unit name?|Monzogranite.|acid intrusive rock|||Y||17-JAN-23
Jackys Pool Metadolerite|79465|Jackys Pool Metadolerite Suite|80087|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|Yarlarweelor Gneiss Complex|33855|||Paleoproterozoic|1820||inferred, intrusive relationship||Paleoproterozoic|||inferred, intrusive relationship|||||No|||Johnson, S. (GSWA)|09-JUN-16|||Map sheet: Errabiddy 2347, Robinson Ranges SG50-07.  The Jackys Pool Metadolerite (P_-jp-modg) is restricted to several northeast-trending metadolerite dykes, all <1 km in length on southeastern ERRABIDDY and northern GOULD in the Yarlarweelor Gneiss Complex. The metadolerite dykes are only 1-3 m wide. They parallel numerous Archean metadolerite dykes (A-mwa-YNA); however, the garnet-bearing metadolerite dykes are inferred to be Paleoproterozoic in age since they crosscut Archean-aged fabrics and are themselves intruded by granitic rocks of the 1820-1775 Ma Moorarie Supersuite. The metadolerite dykes are distinguished from Archean amphibolites (A-mwa-YNA) in that they commonly contain corona textures of garnet around pyroxene, and do not contain a well-developed gneissic banding or schistosity. Published as Jackys Pool Metadolerite Suite: 2015 West Capricorn Orogen Geological Information Series, but GSWA is returning to the original name in 2018. See also GSWA ENS: Sheppard, S, Occhipinti, SA and Johnson, SP 2016, Jackys Pool Metadolerite (P_-_jp-modg): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Garnet-bearing metadolerite dykes.Commonly contain corona textures of garnet around pyroxene, and do not contain a well-developed gneissic banding or schistosity.|metamorphosed basic igneous rock|||Y||17-JAN-23
Jaguar Dolerite|81587|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoarchean|||||Neoarchean|2692|4|inferred, geological correlation|intrusion|65|120||No|72057|||||||Basalt grading up to dolerite, minor gabbro, aphyric basalt.|basic volcanic rock|basic intrusive rock||U||17-JAN-23
Jallagnoonina Granodiorite|68514|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Indee Suite|40281|Archean||||intrusion|Archean||||||||No|63372||Hickman, A.  (GSWA)|30-MAR-05|||For use on the MOUNT WOHLER map sheet; near Whim Creek.  In Mallina Basin and east Pilbara. Part of Sisters Supersuite and intrudes De Grey Supergroup.|Hornblende--biotite granodiorite; medium- to coarse-grained; metamorphosed|acid intrusive rock|||Y||01-MAY-23
James Formation|28620|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40089|||||||||||N||17-JAN-23
Jameson Range Gabbro|8849|Jameson intrusion|77412|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|30385||||||GSWA is progressively returning from form terms 'dyke' and 'intrusion' to lithological terms such as dolerite and gabbro, hence this name may be reused to replace the Jameson intrusion [CEB2018].|Gabbro, troctolite|basic intrusive rock|||Y||17-JAN-23
Jamieson Formation|8851|||||Yes|Formation, beds|Formal|Variation of published name|Described|Bathurst Island Group|1249|||Cenomanian|95|||deposition|Aptian|125|||||1400||No|42053||||||Vulcan Graben, Timor Sea. Pattillo and Nicholls (1990). Different unit from the Jamison Sandstone (Roper Group) also in NT. lateral equivalent to Heywood Formation?|Monotonous succession of silty claystones, with occasional thin limestone or dolomite stringers.|fine grained siliciclastic rock|||N||17-JAN-23
Jandakot Member|8863|Jandakot beds|8866|||Yes|Member, phase|Formal|Variation of published name|Described|Yoganup Formation|26248|||Pleistocene||||deposition|Pliocene||||||||No|41831||||||See also Jandakot beds, Jandakot Beds.|||||N||17-JAN-23
Jansz Sandstone|75710|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Oxfordian|158.2|||deposition|Oxfordian|160.2|||||||No|68135||Nicoll et al (Geoscience Australia)|27-MAY-10|||Briefly described as part of 2010 Acreage Release in: Nicoll R.S, G. Bernadel, T. Hashimoto, A.T. Jones, A.P. Kelman, J.M. Kennard, S le Poidevin, D.J. Mantle, N. Rollet and P.R. Temple (2010) Northern Carnarvon Basin, Biozonation and Biostratigraphy, 2010, Chart 36. On CD: Basin Biozonation and Stratigraphy Charts, 2010. Geoscience Australia.||siliciclastic sedimentary rock|||N||17-JAN-23
Jap Bay Member|8871|Jap Bay Formation|25085|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Warton Sandstone|19549|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|30533|||||||||||N||17-JAN-23
Jarlemai Siltstone|25961|Jarlemai Formation|8873|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Jurassic|||inferred, biostratigraphic correlation|deposition|Kimmeridgian|||inferred, biostratigraphic correlation|||238|WA|No|44040|45153|||||See also Lexicon. Formerly part of Edgar Range Group.|Laminated pink and purple siltstone with a sugary texture, massive and partly sandy mudstone, limestone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Jarrad Sandstone Member|8878|||||Yes|Member, phase|Formal|Other new published name|Defined|Ranford Formation|15830|||Ediacaran||||deposition|Ediacaran||||||50|WA|No|44317|45047|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidean age. Within the Duerdin Group. Ferruginous sandstone in Auvergne area. Wolfe Basin.|Dolomitic and ferruginous sandstones and quartz sandstone, siltstone and mudstone. Extremely thick massive sandstone with single beds up to 2.5m thick.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Jasper Gorge Sandstone|8883|Jasper Gorge Sandstone""|8882|||Yes|Formation, beds|Formal|Other new published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Ectasian|1322|22|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|50|130|NT|No|45022|48938|||||Previously shown as Calymmian (Mesoproterozoic). Victoria Basin. Conservative maximum deposition age of 1322 +/- 22 Ma, with two isolated grains aged 1243 Ma and 1171 Ma (Carson, 2010).|Medium grained, silica-cemented quartz sandstone/orthoquartzite, minor siltstone, basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Jasper Hill Leucogranite|80043|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Neoarchean|||||Neoarchean|2741|5||||||No|67198||||||Leonora district, Eastern Goldfield Superterrane. May be informal mining company nomenclature.||acid intrusive rock|||Y||19-SEP-23
Jawilga beds|75575|Jawilga Beds|8890|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Cryogenian||||deposition|Cryogenian||||||||No|65074||||||Defined as Jawilga Beds 1973. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 353, 357. May be lateral equivalent of Redcliff Pound Group. Neoproterozoic.|Partly cross bedded medium to fine grained lithic sandstone and chert granule conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Jean Well Granodiorite|68517|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2988|4||intrusion|Archean|2990|3||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Intrudes Cliff Pool Tonalite; intruded by Munni Munni Intrusion.|Foliated, weakly compositionally banded, and locally sparsely porphyritic granodiorite and lesser monzogranite.|acid intrusive rock|||Y||17-JAN-23
Jeeaila Sandstone Member|27167|||||Yes|Member, phase|Formal|Other new published name|Defined|Backdoor Formation|24679|||Mesoproterozoic|1070||inferred|deposition|Mesoproterozoic|1211||inferred|||80|WA|No|35639|40089|||||Equivalent to: Backdoor Formation, middle. May be a current Member of Backdoor Formation? By 2012, presented as a Member of Backdoor Formation in Teano 1:100 000 sheet [GO'C 2012].|Thin- to very thick-bedded sandstone and minor siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Jeedamya Complex|40768|Jeedamya Rhyodacite|31098|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean|||||Neoarchean|2681|4|isotopic, U/Pb|||||No|24196||||||See definition for Jeedamya Rhyodacite. Gindalbie Terrane.|Calc-alkaline intermediate-silicic complex consisting of predominantly rhyolitic to rhyodacitic pyroclastic and volcaniclastic clasts.|intermediate volcanic rock|||N||17-JAN-23
Jeerinah Formation|8896|Lewin Shale|25164|||Yes|Formation, beds|Formal|Variation of published name|Defined|Fortescue Group|6834|||Neoarchean|2629|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Neoarchean|2715||inferred, underlying unit||350|1800|WA|No|44729|44503|||||Ages: 2684 +/- 6 Ma zircon,  and 2690 +/- 16Ma. Top of Fortescue Group. Age range from Trendall et al (2004), RefID 60706. Stromatolitic in part.|Shale, sandstone, siltstone, mudstone, dolomite, local microbanded chert, jaspilite, conglomerate; fine-grained massive rhyolite; mafic tuff with local accretionary lapilli and agglomerate; thin basalt/dolerite and andesitic basalt flows.|sedimentary rock|igneous volcanic rock||N||17-JAN-23
Jenkin Granodiorite|72704|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Emu Pool Supersuite|68766|Paleoarchean|3307|3||intrusion|Paleoarchean|3310|4||||||No|64621||Hickman, A. (GSWA)|23-NOV-06|||For use on map sheet 2855; nearest town Marble Bar.  Intrudes Fig Tree Gneiss. Dated: 3307+/-3Ma and 3310+/-4Ma.|Biotite granodiorite, medium- to coarse-grained, foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Jervoise Sandstone|31476|Parmelia Sandstone, Lower""|41889|||Yes|Formation, beds|Formal|Resvd name published|Described|Parmelia Group|40563|||Berriasian||||deposition|Berriasian||||||863||No|50108||J.Backhouse|28-JUL-97||||Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Jigalong Formation|8951|||||Yes|Formation, beds|Formal|Other new published name|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|41768|41768||||||Green silicified glauconitic mudstone, chert, sandstone, pebble conglomerate|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Jilyili Formation|8955|||||Yes|Formation, beds|Formal|Resvd name published|Described|Salvation Group|35575|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|42708||||||Savory Basin (now included in the Officer Basin).  For location of type area see Bullen Explan Notes (1995). GSWA shows this unit as Mesoproterozoic in 2005 & 2006 publications. Mesoproterozoic age matches Salvation Group too.|Fine to medium grained sandstone, shale, siltstone, mudstone and conglomerate.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Jimberlana Norite Member|80602|Jimberlana Norite|8961|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D., Romano, S.S. (GSWA)|03-JUL-18|||Mafic to ultramafic intrusive rocks, undivided; locally abundant carbonate. Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton.See also GSWA ENS: Wingate, MTD and Romano, SS (partial report), Jimberlana Norite Member (P_-_wz-xo-a): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>. Published in GSWA Interpreted Bedrock Geology dataset 2020.|Mafic to ultramafic intrusive rocks, undivided; locally abundant carbonate.Norite, bronzitite, gabbro, pyroxenite, peridotite, dolerite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Jimperding Gneiss Complex|8964|Jimperding Orthogneiss|8965|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Paleoarchean|3267|48|isotopic, U/Pb-Pb/Pb ion probe||Paleoarchean|3341|133||||||No|42533||||||See also Jimperding Complex.|Granitic rocks partly recrystallised in greenschist facies. Even-grained, seriate, or porphyritic granites, metasedimentary rocks, unltramafic rocks, banded quartzo-feldspathic orthogneiss.|acid intrusive rock|metamorphic rock||N||17-JAN-23
Jinduckin Formation|24641|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Daly River Group|5163|||Middle Cambrian|||inferred|deposition|Middle Cambrian|||inferred, underlying unit|||356|NT|Yes|46676|42012|Kruse P.D.|21-APR-88|Kruse, P.D.|07-APR-88|Originally Randal (1962), Malone (1962). Unfossiliferous. Previously considered to include Ordovician conodonts, trilobites, brachiopods, but these now recoginsed to be in separate Florina Formation.|Dolomitic-siliciclastic siltstone with sandstone-siltstone interbeds; dolostone; minor cryptalgal dolostone, ooid dolograinstone, dolomitic quartz sandstone; evaporite (principally anhydrite) common in siltstones and some sandstones; flat pebble breccias|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Jingemia Dolomite|25964|Coomberdale Chert|27133|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Coomberdale Subgroup|4593|||Proterozoic||||deposition|Proterozoic|||||||WA|No|40346|40347|||||Superseded Coomberdale Chert and Dudawa Beds.|||||N||17-JAN-23
Joffre Member|27168|Mindy Mindy Member|11887|||Yes|Member, phase|Formal|Variation of published name|Defined|Brockman Iron Formation|2602|||Siderian|2459||inferred|deposition|Siderian|2465|6|isotopic, U/Pb-Pb/Pb ion probe||300|400|WA|No|71785|33544|||||Ages from Trendall et al (2004), RefID 60706.|Comprises well-banded BIF made up of chert and iron oxides; 5 thin stilpnomelane layers concordant with the stratification of the BIF.|non-carbonate chemical or biochemical sedimentary rock|||N||30-JUN-23
Johansen Monzogranite|72708|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Emu Pool Supersuite|68766|Paleoarchean|3302|2||intrusion|Paleoarchean|3303|2||||||No|64621||Hickman, A. (GSWA)|23-NOV-06|||For use on map sheet 2855; nearest town Marble Bar. Dated: 3303+/-2Ma. Intrudes Fig Tree Gneiss and is intruded by Moolyella Monzogranite.|Medium- to coarse-grained, biotite monzogranite, locally foliated.|acid intrusive rock|||Y||17-JAN-23
Johnny Cake Shale Member|25965|||||Yes|Member, phase|Formal|Other new published name|Defined|Ranford Formation|15830|||Ediacaran|||inferred, geological correlation|deposition|Ediacaran|||inferred, geological correlation||||WA|No|44317|45047|||||Defn on Tech File SE/52-6.  Within the Duerdin Group. Includes lenses and seams of material known as the ornamental stone 'zebra rock'.|Green and red banded shale; gypsiferous and dolomitic in part.|fine grained siliciclastic rock|||N||17-JAN-23
Johnson Cairn Formation|31760|Johnson Cairn Shale|23673|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Windplain Group|40890|||Paleoproterozoic||||deposition|Paleoproterozoic|2258|180|inferred, underlying unit|||1250||No|65408|65419|||||Note: relationship with underlying Juderina Fm was considered conformable and gradational until 2004. Similarly the relationship with the overlying Thaduna Formation was considered transitional until 2004. maximum age from underlying Bubble Well Member of Juderina Formation.|Laminated siltstone and shale, minor feldspathic/lithic sandstone and quartz sandstone, local thin dolomite or dololutite and chert beds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Johnson Formation|25092|||||Yes|Formation, beds|Formal|Variation of published name|Described|Woodbine Group|20481|||Paleocene|56|||deposition|Paleocene|65|||||||No|42053||||||Timor Sea. See also misspelt Johnson Formation Dolomite.|Limestone, minor sandstone.|carbonate sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Jones Creek Conglomerate|25093|Scotty Creek Formation|31033|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Neoarchean|2632|13|isotopic, U/Pb-Pb/Pb ion probe|deposition|Neoarchean|2667|6|isotopic, U/Pb||1000|2600||No|30631||||||See also local name Scotty Creek Conglomerate.|Conglomerate and sandstone with granitoid clasts and matrix dominating, metamorphosed. Arkosic arenite, fine- to medium-grained, rare pebbles - metamorphosed. Conglomerate and sandstone with mafic matrix dominating - metamorphosed.|metasedimentary siliciclastic rock|||N||17-JAN-23
Jones Well Granodiorite|73589|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Indee Suite|40281|Archean||||intrusion|Archean||||||||No|63441||||||Within the Sisters Supersuite. Geological province: Pilbara Craton/Mallina Basin.  Intrudes De Grey Supergroup.||acid intrusive rock|||Y||17-JAN-23
Joolabroo Conglomerate|9024|Joolabroo Formation|32765|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||28.5||No|36890|||||||Conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Joorina Granodiorite|39504|Boodallana Suite|2191|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3305|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3321|6|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03||||Biotite granodiorite, locally includes tonailte and monzogranite; medium- to coarse-grained; locally seriate and porphyritic; weakly to moderately foliated; mafic xenoliths; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Jorgenson Monzogranite|9033|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42742|||||||Equigranular monzogranite; metamorphosed|acid intrusive rock|||Y||01-MAY-23
Jowlaenga Formation|9036|Jowlaenga Sandstone|9037|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Cretaceous||||deposition|Upper Jurassic||||||40|WA|No|44998|45153|||||See also Lexicon. 92/27499 considers Jowlaenga Formation part of Broome Sandstone. See also Broome Sandstone.|Fine to medium grained poorly sorted and commonly ferruginous, fossiliferous, silty sandstone, mudstone, conglomerate|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Joy Helen Granite|31961|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Chararoo Supersuite|31955|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Included in -Pg on Edmund & incl. in -Pgmv on Winning Pool-Minilya 1:250k map sheets.||acid intrusive rock|||Y||17-JAN-23
Juan Complex|9039|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|41094|||||||||||N||17-JAN-23
Jubilee Member|9041|Jubilee Calcarenite|9040|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Cardabia Calcarenite|3589|||Early Eocene||||deposition|Early Eocene||||||||No|40617||||||Formerly Jubilee Calcarenite?  See also Jubilee Calcarenite Member. Note Jubilee Calcarenite used in 2002, but as a member of Cardabia Formation.|||||N||17-JAN-23
Juderina Formation|9050|Juderina Sandstone|24323|||Yes|Formation, beds|Formal|Other new published name|Redefined|Windplain Group|40890|||Rhyacian|2173|64|isotopic, Pb/Pb isochron age|deposition|Rhyacian|2258|180|isotopic, Pb/Pb isochron age|||1000|WA|No|40297|43069|||||Previously defined as Juderina Sandstone. Formerly of Windplain Subgroup (Yerrida Group). Yerrida Group made obsolete and now of Windplain Group. Dating from Bubble Well Member. Relationship with overlying Johnson Cairn Shale was recorded as disconformable in 2004. Previously considered conformable and gradational.|Quartz sandstone (in places cross bedded and rippled), minor siltstone, laminated siltstone, shale and chert, chert breccia and conglomerate. Conglomerate usually matrix-supported with vein quartz clasts, and intraformational sandstone clasts.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Judy Member|23674|||||Yes|Member, phase|Formal|Resvd name published|Described|Athol Formation|735|||||||deposition|||||||||No|42615||Hocking R.M.|18-JAN-93|||Described in GSWA Record 1992/7, 93/27545|||||N||17-JAN-23
Juglah Monzogranite|22039|||||Yes|Formation, beds|Informal|Resvd name published|Mentioned|||||||||intrusion|||||||||No|43075||Ahmat A.|12-AUG-92|||for GSWA publication.|monzogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Jugurra Sandstone|9054|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35711|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Julie Formation|9070|Julie Member|27807|||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Ediacaran|565||inferred, overlying unit|deposition|Ediacaran|575||||38|550|NT|Yes|46865||Preiss W.V., Walter M.R., Coats R.P., Wells A.T.||Wells, A.T.|01-OCT-77|Redefined by VJ Normington, N Donnellan, 30-SEP-2015. Redefinition approved 9-NOV-2015.|A widespread, relatively thin unit of dolostone, limestone (oolitic in part) and siltstone with sandstone lenses; contains sparse stromatolites.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Junction Dolerite|9075|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2762|32||||500||No|41368|||||||Aphyric basalt, grading upward through dolerite and gabbro into pyroxenite, and up into dolerite, minor gabbro and quartz gabbro.|igneous volcanic rock|||Y||17-JAN-23
Junda Microgranite|22047|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sophie Downs Suite|41468|Orosirian|1911|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1913|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|44693||Griffin T.J. & Tyler I.M.|14-DEC-92|||East Kimberley Region. Kimberley Province. Ages: c.1910Ma and 1913+/-5Ma.  In the Lamboo Complex (eastern zone).|Partly recrystallised fine grained leucocratic monzogranite.|acid intrusive rock|||Y||17-JAN-23
Jundee Basalt|35677|Jundee Dolerite|35676|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|23149|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Jundelaya Hill Granodiorite|31957|Jundelaya Hill granodiorite|30621|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I., Bastrakova I.|25-NOV-97|||Used in Proterozoic granites project. Gascoyne Province. Shown as -Pgp & -Pg on Yanrey-Ningaloo 1:250k map sheet.  Parent Boolaloo Supersuite discontinued by GSWA; now part of Moorarie Supersuite (S.Sheppard, pers. comm., 2008)|Granitic rocks, adamellite|acid intrusive rock|||Y||17-JAN-23
June Hill Volcanics|9079|||||Yes|Formation, beds|Formal|Other new published name|Described|Wyloo Group|20715|||Statherian|1786|11|isotopic, U/Pb-Pb/Pb ion probe|deformation|Orosirian|1799|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|44477||||||Initial isotopic age (1843 +/- 2 Ma) reanalysed and reinterpreted to 1799 +/- 8 Ma (Evans et al, 2003). Overlain by Ashburton Formation in Duck Creek Syncline, but  Ashburton Formation appears to be diachronous and is believed to be older than the volcanics in other areas.|Predominantly intermediate and mafic lava, pillow breccia, fine to coarse pyroclastics and minor dolomite, sandstone and mudstone.|intermediate volcanic rock|basic volcanic rock||N||27-JUN-23
Jungar Suite|74834|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Neoarchean|2640||isotopic, Lu/Hf||Neoarchean|2665|5|isotopic, Lu/Hf|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. NOT part of Austin Downs Supersuite, as wrongly shown in GSWA Annual Review 2007-08 (Van Kranendonk pers. comm. 14-APR-2011). Shown as part of Bald Rock Supersuite in 2010, but not in 2012.|Biotite metagranite, predominantly metamonzogranite; minor metagranodiorite, metasyenogranite, and metapegmatite; fine to coarse grained; locally gneissic|metamorphosed acid igneous rock|foliated metamorphic rock||Y||17-JAN-23
Jungle Monzogranite|33666|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|44203||||||Edjudina 1:250 000 sheet area.|Biotite monzogranite; High-HFSE granite.|acid intrusive rock|||Y||17-JAN-23
Jupiter Syenite|77090|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|||||Neoarchean|2665||inferred|||||No|64633||||||Forms a radial distribution of dykes into pillow basalt. Hosts the Jupiter gold deposit.|||||Y||17-JAN-23
Jurabi Member|9090|Tulki Limestone|27594|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Bundera Calcarenite|25709|||Pleistocene||||deposition|Pleistocene|||||||WA|No|33593|33593||||||||||N||17-JAN-23
Jurassic sedimentary rocks 76561|76561|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Upper Jurassic|141|||deposition|Lower Jurassic|205|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Jurassic to Cretaceous sedimentary rocks 76560|76560|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lower Cretaceous|97|||deposition|Middle Jurassic|175|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Jurgurra Sandstone Member|9093|Jurgurra Sandstone|25966|||Yes|Member, phase|Formal|Unknown or process pending|Briefly described|Wallal Sandstone|27250|||Upper Jurassic||||deposition|Lower Jurassic||||||20||No|36634|||||||Sandstone, mudstone and conglomerate; partly eolian.|siliciclastic sedimentary rock|||N||17-JAN-23
Juries Bore Granite|31887|Juries Bore Gabbro|31060|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|43854||||||McIntosh 1:100 000 map sheet, East Kimberley. In the Western Zone of the Lamboo Complex.|Fine- to medium-grained, biotite-cordierite-sillimanite granodiorite and monzogranite with abundant migmatitic metasedimentary inclusions|acid intrusive rock|||Y|S-type|17-JAN-23
Kaarnka Group|76743|||||Yes|Group, Suite|Formal|Resvd name published|Described|Bentley Supergroup|1491|||Stenian|1047|||eruption|Stenian|1068|||||||No|69153||Howard, H.M. (GSWA)|17-JAN-12|||Talbot 1:250k sheet SG52-09. To be published: Werner, M, Howard, HM, Smithies, RH, Aitken, ARA and Medlin C 2012, Mount Eveline, WA Sheet 4345: Geological Survey of Western Australia, 1:100 000 Geological Series.|Rhyolitic and trachytic lavas, subvolcanic sills, and pyroclastic rocks, locally interlayered with volcanic sandstones and siltstones and minor basalt.|acid volcanic rock|intermediate volcanic rock||N||05-OCT-23
Kadgewarrina Monzogranite|35233|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Split Rock Supersuite|68672|Mesoarchean|2830|||intrusion|Mesoarchean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa and Wodgina 1:100 000 sheets.|Muscovite-biotite(-garnet) monzogranite; equigranular to weakly porphyritic; massive to layered.|acid intrusive rock|||Y||17-JAN-23
Kakalyalya Formation|76869|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kaarnka Group|76743|||Stenian|1047|||deposition|Stenian|1068|||||||No|69153||Howard, H. (GSWA)|10-APR-12|||To be published: Werner, M, Howard, HM and Smithies, RH 2012, Mount Eveline, WA Sheet 4345: Geological Survey of Western Australia, 1:100 000 Geological Series.|Quartz-feldspar-porphyritic rhyolite; subvolcanic intrusions; rounded and embayed quartz phenocrysts and subhedral and embayed alkali feldspar phenocrysts, both up to 7 mm, in a very fine grained felsitic groundmass.|acid volcanic rock|acid intrusive rock||Y||17-JAN-23
Kalgoorlie Group|26647|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Neoarchean|2690|5|||Neoarchean|2726|30||||||No|41368|||||||Basalt: variolitic, pyroxene spinifex-textured, plagioclase-phyric, metamorphosed; komatiite; peridotite, minor metapyroxenite: serpentinised, silicified; amphibolite, metabasalt, ultramafic schist, metamorphosed siliciclastics.|basic volcanic rock|ultramafic volcanic rock||N||17-JAN-23
Kaliranu Member|37153|Kaliranu beds|37152|||Yes|Member, phase|Formal|Variation of published name|Described|Wilki Formation|37330|||Cryogenian||||deposition|Cryogenian|||||200|250||No|23758|||||||Shale, siltstone, sandstone, dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kalkan Supersuite|31780|||||Yes|Supergroup|Formal|Resvd name published|Briefly described|||||Statherian|1762|13|isotopic, U/Pb||Statherian|1801|12|isotopic, U/Pb|||||No|50436||Smithies R.H., Wyborn L.A.I.|30-SEP-97|||Rudall 1:100k sheet area, 3552 . For the 1700Ma orthogneiss etc|Felsic intrusives.|acid intrusive rock|||Y||17-JAN-23
Kalkarindji Suite|75724|Kalkarindji Volcanic Group|69564|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Early Cambrian|505|3|isotopic, Ar/Ar|eruption|Early Cambrian|513|12|isotopic, U/Pb-Pb/Pb ion probe||60|1100||Yes|70866|69445|Glass, L.M., Munson, T.J.|06-AUG-10|Munson, T., Glass, L., Beyer E.|15-OCT-09|This will include, in part, units formerly included in the Kalkarindji Volcanic Group. Constituent units defined in both NT and WA, So no single typestate applies. GSWA has recently used Kalkarindji Supersuite for this unit. Kalkarindji Suite rocks are known to be extensive in the sub-surface.|Tholeiitic basalt, dolerite and andesite: partly vesicular or amygdaloidal; minor trachyte, microdolerite, basaltic flow breccia, peperite, pyroclastic deposits, quartz sandstone, siltstone, sedimentary breccia, limestone, chert.|basic volcanic rock|intermediate volcanic rock|intracratonic|Y||17-JAN-23
Kalli Formation|79813|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Weld Range Group|32626|||Mesoarchean|||||Mesoarchean||||||||No|69583|||||||||||N||17-JAN-23
Kalmanyi Member|32534|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Napier Formation|27212|||Famennian||||deposition|Frasnian||||||||No|24371||Playford P.|15-JUN-98||||Well-bedded to massive reefal-slope and fore-reef limestone; locally dolomitized, steeply dipping, with allochthonous blocks and debris flows in some horizons.|carbonate sedimentary rock|||N||17-JAN-23
Kalpini Dolerite Member|80603|Kalpini Dyke|78640|||Yes|Member, phase|Reserved|Variation of reserved name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Bardoc 1:100k map sheet 3137. Dolerite and gabbro; includes cumulate and granophyric differentiates. Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. To be published in: East Yilgarn GIS 2018 package. See also GSWA ENS: Wingate, MTD (partial report), Kalpini Dolerite Member (P_-_wk-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro; includes cumulate and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Kalumburu Dolerite|80575|Kimberley Dyke Suite|79598|||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Carboniferous|298.9||inferred||Devonian|419.2||inferred|||||No|||Wingate, M., Phillips, C. (GSWA)|03-JUL-18|||This unit is interpreted from distinctive northeasterly linear trends on geophysical imagery and is not observed in outcrop. It is considered likely that dolerite is a main constituent of the unit. It was originally published as the Kimberley Dyke Suite (79598), but name is invalid (clash with Kimberley Group), and it is therefore renamed to Kalumburu Dolerite to avoid form term. Dolerite; typically northeasterly trending dykes. To be published in: Kimberley GIS 2018 package etc. See also GSWA ENS: Wingate, MTD and Phillips, C (partial report), Kalumburu Dolerite (DC-_ka-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Probably dolerite.|basic intrusive rock|||Y||17-JAN-23
Kaluweerie Conglomerate|28631|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|29378|||||||A lower polymictic conglomerate with clasts including local granite, gneiss, basalt, BIF, and a matrix with little or no clay or silt. An upper fine- to coarse-grained lithic sandstone with clasts similar to those in conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Kalyukuyarra Suite|80665|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||||Stenian|1165||||Stenian|1200|||||||No|||Payne, J. (Uni SA)|12-OCT-18|||No geographic names are available in region. Kalyukuyarra is the Martu word for "water pools after rain". This is proposed as the type location for the suite (Zone 51, E 569204, N 7447540, GDA94) includes boulders with the Martu symbol indicating water gathers at the location after rainfall. Suite crops out and is present in one drillhole. Largely undeformed with some discrete high strain zones in some outcrops. To be published in Payne et al. (in prep).|K feldspar, quartz, plagioclase, biotite granitoids. Largely undeformed with some discrete high strain zones in some outcrops.|acid intrusive rock|||Y||17-JAN-23
Kambalda Komatiite|9165|Kambalda komatiite|28632|||Yes|Formation, beds|Formal|Variation of published name|Described|Hannans Subgroup|77860|||Neoarchean|2706|36|isotopic, Re/Os|eruption|Neoarchean|2709|4|isotopic, U/Pb-Pb/Pb ion probe||100|1500||No|41368||||||2706+/-36 Ma (Foster et al., 1996). See also Hannans Lake Serpentinite.|Komatiite; basal pyroxenite; peridotite and picrite; minor sedimentary rock; metamorphosed|ultramafic volcanic rock|siliciclastic sedimentary rock||N||16-AUG-23
Kambalda Sequence|77093|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Described|||||Neoarchean|2692||||Neoarchean|2715|||||||No|64633||||||Includes D.C.Basalt, Kambalda Komatiite, Kapai Slate, Lunnon Basalt and Paringa Basalt. See Kambalda Supersequence. Large volumes of granite are interpreted to have pooled immediately below this unit, producing a regional-contact type of metamorphism at 2685-2665 Ma.|Mafic lavas.|basic volcanic rock|||N||17-JAN-23
Kambalda Supersequence|34368|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Archean|||||Archean||||||||No|22682||||||See Kambalda Sequence.|||||N||17-JAN-23
Kamilili Formation|23680|||||Yes|Formation, beds|Formal|Other new published name|Defined|Ningbing Group|14166|||Famennian||||deposition|Famennian|||||||WA|No|40993|40993|P.E.Playford|04-MAY-83||||Fossiliferous limestone, shale and limestone breccia.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Kangaroo Caves Formation|32223|Sulphur Springs Formation|32072|||Yes|Formation, beds|Formal|Resvd name published|Described|Sulphur Springs Group|32237|||Paleoarchean|3192|21|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Paleoarchean|3245|2|isotopic, U/Pb-Pb/Pb ion probe|||1700||No|22441||Van Kranendonk M.J.|06-APR-98|||North Shaw 1:100 000 sheet area 2755. Within the Pilbara Supergroup. The redefined banded-iron formation portion of Pincunah Hill Fm is now assigned to this unit as the Pincunah Member (Van Kranendonk/GSWA Mar06). Current version of constituent name is Pincunah Banded-iron Member (checked in ASUD, June2014).|Olistostrome megabreccia; banded iron-formation; layered chert; shale; andesite; andesitic volcanic sandstone; dacite and rhyodacite; felsic volcanic rocks; felsic volcanic breccia and volcaniclastic sandstone; rhyolite lava and pumice breccia.|acid volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||27-JUN-23
Kangiangi Clay|23682|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Pleistocene||||deposition|Early Miocene||||||47||No|38776||J.C.Barnett|01-DEC-80||||Alluvial silt and clay, indurated; calcareous in upper part, basal pisolite gravel.|regolith|||N||17-JAN-23
Kanowna Belle Porphyry|35672|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||eruption|Archean|2655|6||||80||No|23142|||||||Quartz-feldspar porphyry|acid intrusive rock|||U|I-type|17-JAN-23
Kanpa Formation|9250|Kanpa beds""|40109|||Yes|Formation, beds|Formal|Other new published name|Fully described|Buldya Group|33826|||Cryogenian|725|11|isotopic, U/Pb|deposition|Tonian|779|6|isotopic, U/Pb|||516||No|41751||||||Contains Keene Basalt within drill core Lancer 1.|Lower part mainly mudstone, claystone and sandstone; upper part stromatolitic dolostone, sandstone and mudstone; grey shale beds, possible ash beds, and basalt (Keene Basalt).|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Kantie Murdana Volcanics Member|77080|Kantie Murdanna Volcanics|27946|||Yes|Member, phase|Formal|Variation of reserved name|Described|Yaloginda Formation|74803|||Mesoarchean|2805|||eruption|Mesoarchean|2813|3|isotopic, U/Pb-Pb/Pb ion probe|||500||No|67129||Ivanic, T. (GSWA)|20-JUN-12|||To be used on the upcoming CHALLA and WINDIMURRA 1:100 000 maps due for publication in 2012. Spelling corrected back to original spelling of  'Murdana'.|Rhyolitic and dacitic volcanic and volcaniclastic rocks interbedded with minor metamorphosed banded iron-formation; locally strongly deformed and recrystallized|acid volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||06-JUN-23
Kapai Slate|9256|||||Yes|Formation, beds|Formal|Other new published name|Defined|Hannans Subgroup|77860|||Neoarchean||||deposition|Neoarchean|2692|4|isotopic, U/Pb-Pb/Pb ion probe|||25|WA|Yes|68217||||||Age: 2692+/-4 Ma (Claoue-Long et al., 1988). Extensive chert and siliceous slate which are distinct marker beds - locally associated with BIF in Kambalda domain.  In the Norseman greenstones they form an association with metagreywackes, BIF, and felsic pyroclastic rocks.|Black to grey sulfidic slate and silicified shale; subordinate fine-grained volcaniclastic layers and siliceous sedimentary rock; metamorphosed.|metasedimentary siliciclastic rock|||N||16-AUG-23
Kapi-Parra suite|77229|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Pitjantjatjara Supersuite|39078|Stenian||||magmatic crystallisation|Stenian|1180|4|isotopic, Sm/Nd|||||No|66256|||||||A-type. Within-plate, Yb-enriched granite.|acid intrusive rock|||Y|A-type|17-JAN-23
Karalundi Formation|24332|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Bryah Group|29869|||Paleoproterozoic|1800|||deposition|Paleoproterozoic|2000|||||2500|WA|Yes|35975|65419|R.D.Gee|13-NOV-78|WA SNSC|14-SEP-79|Became part of Bryah Group in new Glengarry Basin stratigraphy of Pirajno & Occhipinti (1997) and Pirajno (1996). Previously of Glengarry Group.|Metamorphosed and locally ferruginous shale and sandstone with metaconglomerate bands and lenses, and chert and siliciclastic metasediments.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Karara Formation|9275|Karara Beds|9274|||Yes|Formation, beds|Formal|Variation of published name|Defined|Tarcunyah Group|31872|||Neoproterozoic|||inferred|deposition|Neoproterozoic|||inferred|||350|WA|No|35387|35902|||||Occurs in the vicinity of the Camel-Tabletop fault zone.|Medium to coarse arkosic sandstone, micaceous fine to medium grained quartz sandstone, minor quartz feldspar wacke, shale, siltstone and conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Karbar Monzogranite|74832|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Tuckanarra Suite|74831|Archean||||intrusion|Archean||||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: ?2670Ma.|Monzogranite; weak solid-state overprint, generally increasing towards pluton margins; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Kardinya Shale Member|22066|||||Yes|Member, phase|Formal|Resvd name published|Defined|Osborne Formation|14663|||Cenomanian||||deposition|Albian|||||||WA|No|12759|12759|Davidson A.|28-FEB-94|||For use in Cretaceous of Perth Basin. See informal Kardinya Shale.|Moderately to tightly consolidated, interbedded siltstones and shales, dark green to black, often puggy, glauconitic, and contain thin interbeds of mostly fine-grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Karijini Dolerite|80949|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Paleoproterozoic|||inferred||Neoarchean|||inferred|||||No|71808|||||||Dolerite.|basic intrusive rock|||N||17-JAN-23
Karlaya Member|80171|||||Yes|Member, phase|Informal|Other new published name|Described|Kathleen Ignimbrite|9315|||Mesoproterozoic|||||Mesoproterozoic||||||||No|71211||||||Poor name choice. Not related to the Karlaya Limestone (after the Karlaya Limestone Member) in the adjacent Officer Basin, SA.|Vitriclastic, rhyolitic ignimbrites, breccias and lapilli-tuff facies.|acid volcanic rock|||N||17-JAN-23
Karonie granodiorite|9294|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|37373|||||||Granodiorite|acid intrusive rock|||Y|I-type|17-JAN-23
Karrakatta Soil|9301|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40367|||||||||||N||17-JAN-23
Karramindie Monzogranite|9303|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2550|25|isotopic, Rb/Sr|magmatic crystallisation|Neoarchean|2705|30|isotopic, Pb/Pb|||||No|42698|||||||Recrystallised fine- to medium-grained biotite monzogranite; unfoliated. High Ca granite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Karratha Granodiorite|31690|||||Yes|Formation, beds|Formal|Other new published name|Described|||Cleland Supersuite|68665|Paleoarchean|3250|||intrusion|Paleoarchean|3270|||||||No|43822||||||Age approx. 3260 Ma. Together with the Roebourne Group units (in West Pilbara granite-Greenstone Terrane) is interpreted to be a rifted segment of Sulphur Springs Group/Cleland Supersuite of the East Pilbara Granite-Greenstone Terrane. See also Karratha Granitoid Complex.|Granodiorite and tonalite; foliated with local compositional banding; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Karri Karri Member|33195|||||Yes|Member, phase|Formal|Resvd name published|Defined|Chiall Formation|33196|||Paleoproterozoic||||deposition|Paleoproterozoic||||||1000||No|24018|50188|Hocking R.|09-NOV-98|||Previously within the Miningarra Subgroup, now [2013] Miningarra Group. Formerly part of the underlying Windidda Fm. 2001 lith description: Shale, generally finely laminated; siltstone, and minor sandstone; deformed and metamorphosed in the Stanley Fold Belt; ferruginous. This 2001 GSWA lith desc now replaced by briefer generic GSWA IBG 2020 one.|Shaly siltstone, commonly laminated.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Karukali Quartzite|35316|Karukaki Quartzite|33812|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Tjauwata Group|36772|||Stenian||||deposition|Stenian||||||10|NT|Yes|50321|65256|Edgoose C., Close D.|23-NOV-99|Kruse, P.D.|21-JAN-02|Reserved as Karukaki (Edgoose and Close 1992) - spelling now corrected. Previously described as the basal unit of the Mount Harris Basalt (Forman 1966). Type Section:  24o49' 58.95S, 129o36' 45.31E (WGS84). Overlies Musgrave basement granite.|Quartzite and quartz-muscovite schist, often rich in hematite and magnetite, minor quartz pebble conglomerate.(White crystalline quartz sandstone; rounded quartz pebble conglomerate beds; local heavy mineral layers of hematite and magnetite).|siliciclastic sedimentary rock|||N||17-JAN-23
Karunjie Dolerite|82116|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||400||No|||Orth, K. (GSWA)|20-NOV-20|||The Karunjie Dolerite intrudes the upper portions of the Kimberley Basin including the Warton Sandstone, Elgee Siltstone and the Pentecost Sandstone. It is comprised of dolerite. In the southeast, near Teronis Gorge are two dolerite units. The highest sill is between the upper and middle Pentecost Sandstone. South and west of Tablelands homestead are sills within the upper portions of the Warton Sandstone. Bodies of Karunjie Dolerite are mapped south and south west of Karunjie Homestead (127deg11' 56'E, 16deg17'13"S) within the Pentecost Sandstone. In the west, around Synnot Range and Harding Ranges north of Walcott Inlet the dolerite forms large (<10 km diameter) bodies within the Warton Sandstone. On the Yampi Peninsula it intrudes the Warton Sandstone north of Cone Bay and in the Kimbolton Range. The sills in the Kimbolton area may be up to 400 m thick. To be published in: THE HART-CARSON LARGE IGNEOUS PROVINCE, KIMBERLEY, NORTH WESTERN AUSTRALIA Karin Orth Geological Survey of Western Australia.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Katanga Conglomerate|9308|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Proterozoic||||deposition|Proterozoic||||||||No|44477|||||||Conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kathleen Ignimbrite|9315|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Pussy Cat Group|15689|||Stenian|1047|||eruption|Stenian|1071|5|isotopic, U/Pb-Pb/Pb ion probe|||500||No|30944||||||Musgrave Block. Bentley Basin. 1071 +/- 5 Ma SHRIMP magmatic crystallization age (RefID 69153, 2012).|Volcaniclastic rhyolite; typically rheomorphic ignimbrite; locally crystal-rich, lapilli-ash tuff; locally abundant relict glass shards.|acid volcanic rock|||N||05-OCT-23
Kathleen Valley Gabbro|9317|Kathleen Valley Gabbro and Granophyre|9316|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Yalgowra Suite|74829|Neoarchean||||intrusion|Neoarchean|2736|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|35113||||||Sir Samuel 1:100k sheet area 3042.|Gabbro, quartz gabbro, and pyroxenitic gabbro; minor anorthosite and tonalite; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||02-JUN-23
Kathwai Member|9324|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||Triassic||||deposition|Triassic||||||||No|32164|||||||||||N||17-JAN-23
Kauring Laterite|9343|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|42280|||||||Laterite||||N||17-JAN-23
Kavir Granodiorite|33450|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Cleland Supersuite|68665|Paleoarchean|3235|||intrusion|Paleoarchean|3240|||||||No|23416||VanKranendonk M.|19-JAN-99|||North Shaw 1: 100 000 sheet area, east Pilbara.  Age: c.3240Ma. East Pilbara Terrane.|Metamorphosed biotite granodiorite and minor pegmatitic granite; fine to medium grained; foliated|acid intrusive rock|||Y||04-MAY-23
Kayilirra Suite|80664|||||Yes|Group, Suite|Reserved|Reserved|Reserved|||||Calymmian|1491|8|isotopic, U/Pb||Calymmian|1506|9|isotopic, U/Pb|||||No|||Payne, J. (Uni SA)|12-OCT-18|||Map sheets: 3552 Blanche, 3652 Tabletop.; SF51-11 Tabletop. No geographical location names are recognised in this location. Name is Martu word meaning "towards the north" reflecting this suite as the being located in the northernmost Rudall Province. Mineralogy is plagioclase, potassium feldspar, quartz, hornblende and biotite. To be published (including geochronology) in Payne et al. (in prep).|Dominantly weakly foliated granite with some strongly deformed/gneissic outcrops.|metamorphosed acid igneous rock|||Y||17-JAN-23
Kazput Formation|22076|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Turee Creek Group|18702|||Rhyacian|2208||inferred, intrusive relationship|deposition|Siderian|2312|5.6|inferred, underlying unit|||1000|WA|Yes|43262||Thorne A.M.|08-NOV-94|||Rocklea 1:100k, Pilbara. Said to be of Turee Creek Basin in 2012.|Mudstone, siltstone, sandstone, and grey recrystallized dolomite; minor stromatolitic dolomite and limestone, diamictite, and thin beds iron formation|metasedimentary siliciclastic rock|||N||02-MAY-23
Keene Basalt|40192|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kanpa Formation|9250|||Cryogenian||||eruption|Cryogenian||||||50|WA|No|65363|65363|Mory, A.|11-FEB-04|||Named after Lake Keene.  Map sheet SG 51-7 (Wiluna area). Previously a Formation level unit. Reduced to Member of Kanpa Formation in 2007. Said to be ~750 Ma in 2007.|Dark grey to greenish basalt, fine-grained, coarse-grained and massive in middle of each flow, locally amygdaloidal and brecciated; veins and amygdales filled with calcite, red chert or chlorite; erosional top; no interbedded sediments.|basic volcanic rock|||N||17-JAN-23
Keep Inlet Formation|9368|Keep Inlet Beds|9366|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kulshill Group|9896|||Artinskian||||deposition|Sakmarian|295|||||480||No|41839||||||See also Kulshill Formation. Age based on Kulshill Group age (RefID 64630, 2008). Coal recognised in this unit prior to 1894.|Deltaic sandstone, pebbly sandstone, mudstone, conglomerate and minor coal.|siliciclastic sedimentary rock|||N||17-JAN-23
Keep It Dark Monzogranite|33451|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Mesoarchean|2936|5||intrusion|Mesoarchean|2940|||||||No|23416||VanKranendonk M.|19-JAN-99|||North Shaw 1: 100 000 sheet area, east Pilbara. Also appears as misspelt Keep it Dark Monzogranite in RefID 69015.|Monzogranite; undeformed to foliated; medium-grained, equigranular to weakly porphyritic; weakly metamorphosed|acid intrusive rock|||Y||17-JAN-23
Keith Kilkenny Greenstones|9384|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|30440|||||||Greenstones||||N||17-JAN-23
Kelly Group|69691|Kelly Subgroup|39986|||Yes|Group, Suite|Formal|Variation of published name|Fully described|Pilbara Supergroup|15189|||Paleoarchean|3300|||deposition|Paleoarchean|3350||||8000|9000||No|61253||||||Still included the subgroup components in 2006: From base, Strelley Pool Chert followed by Euro Basalt, Wyman Formation and Charteris Basalt. Includes rocks with ages: c.3350Ma and 3325-3315Ma. 2008 revision excludes Strelley Pool Formation from this Group.|Felsic tuffaceous sandstone, quartz sandstone, siltstone, shale, chert, banded iron formation, schist, tuff, conglomerate, rhyolite, basalt, serpentinised peridotite; local dolerite sills; intrusive porphyry and microgranite; metamorphosed|sedimentary rock|igneous volcanic rock||N||30-JUN-23
Kelly Group - amphibolite|74417|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kelly Group|69691|||Archean|||||Archean||||||||No||||||||Amphibolite, mafic schist|metamorphosed basic igneous rock|||U||17-JAN-23
Kelly Group - chert|74585|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kelly Group|69691|||Paleoarchean||||deposition|Paleoarchean||||||||No||||||||Chert|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Kelly Group - leucogabbro and dolerite|74264|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kelly Group|69691|||Archean||||intrusion|Archean||||||||No||||||||Leucogabbro and dolerite|basic intrusive rock|||Y||17-JAN-23
Kelly Group - ultramafic rock|74418|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kelly Group|69691|||Archean|||||Archean||||||||No||||||||Ultramafic rock|metamorphosed ultramafic rock|||U||17-JAN-23
Kellys Knob Sandstone|9402|Kellys Knob Sandstone Member|9401|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||300||No|40792||||||Previously Kellys Knob Sandstone Member. Overlies Ragged Range Conglomerate, unconformably overlies Whitewater Volcanics and Halls Creek Group.|Red to orange, tabular, cross-bedded, medium-grained, pebbly quartz sandstone with conglomerate beds towards the base.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Ken's Bore Granite|35485|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|23209||||||Should be Kens Bore Granite|Granite|acid intrusive rock|||Y|I-type|17-JAN-23
Kennedy Group|9434|Kennedy Sandstone""|9436|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Wordian|||||Kungurian|||||200|1000|WA|No|44537|45016|||||See also Lexicon. A Kungurian-Roadian age suggested by Mory and Backhouse (1997) is supported by SHRIMP dating of Binthalya Formation by Lever and Fanning (2004). Potential source for hydrocarbons.|Sandstone, shale, siltstone, claystone; minor bioclastic limestone in subsurface.|siliciclastic sedimentary rock|||N||23-MAR-23
Kennedys Cottage Limestone|74628|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||2|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 5500 ± 160 yrs BP and 5590 +/- 240 yrs BP.PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|A fine to medium to coarse sand-sized bioclastic, quartzose and sparsely oolitic calcarenite, with layers of shells...|carbonate sedimentary rock|||N||17-JAN-23
Kennell Granodiorite|39505|Yandicoogina Suite|20816|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3312|||intrusion|Paleoarchean|3315|2|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03|||Replaces the Yandicoogina Suite. See also Yandicoogina Granodiorite.|Weakly to moderately foliated, fine- to coarse-grained, grey to dark-grey,biotite-hornblende granodiorite, tonalite, and minor monzogranite; locally seriate to porphyritic; local common mafic, ultramafic, and metasedimentary xenoliths and mafic schlieren.|acid intrusive rock|||Y||17-JAN-23
Kents Bore Basalt|79017|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||||||eruption|||||||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Leonora. Nearest Town = Leonora. Briefdescription =  Consists of aphyric to feldspar-phyric basalt. This is a formation level unit. Wheretobepublished = GSWA digital release (maps and explanatory notes).|Basalt; aphyric and feldspar-phyric, plagioclase-phyric; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Keogh Formation|9450|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian|||||50|73|WA|No|45001|45016|||||See also Lexicon. Type section: Keough Hill, Southern Byro Plains 25d51m30sS; 115d54m30sE.|Fine and medium quartz sandstone, lesser clayey siltstone, pebble conglomerate and black shale.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Keraudren Formation|9462|Keraudren Beds|9461|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Triassic||||deposition|Middle Triassic||||||200||No|41438||||||Age ~235 Ma (from 2001 reference). Said to include Cossigny Member in Roebuck and offshore Canning Basins, 2015.|Sandstone with minor shale and coal.|siliciclastic sedimentary rock|||N||17-JAN-23
Kerba Granite|30802|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic|1808|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|44927||Occhipinti S.|17-JAN-97|||Robinson Range 1:250 000 sheet area. See also recent use of Kerba Monzogranite.|Equigranular medium-grained biotite monzogranite; mainly massive, locally foliated to mylonitic; locally contains abundant inclusions of Archean granitic gneiss.|acid intrusive rock|||Y||17-JAN-23
Kerba Monzogranite|80031|Kerba Granite|30802|||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|67888||||||This may be a deliberate name change. GSWA reference material for geochemical analyses.||acid intrusive rock|||N||17-JAN-23
Kestrel Cavern Gabbro|80609|Kestral Cavern Gabbro|79865|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||Moodini Supersuite|79174|Mesoproterozoic|1144||||Mesoproterozoic|1155|||||||No|||Spaggiari, C. (GSWA)|03-JUL-18|||Unexposed mafic intrusive unit assigned to the Moodini Supersuite, intersected during drilling of Madura Province basement underlying the Eucla and Bight Basins. See also GSWA ENS: Spaggiari, CV (partial report), Kestrel Cavern Gabbro (P_-MDke-oe): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Medium- to coarse-grained ferro-monzogabbro grading to coarse plagioclase-rich
 leucogabbro|basic intrusive rock|||Y||17-JAN-23
Kevins Dam Monzogranite|29876|Kevin Dam Monzogranite|29799|||Yes|Formation, beds|Formal|Resvd name published|Described|||Kevins Dam Suite|31898|Orosirian|1805|||intrusion|Orosirian|1835|||||||No|43863||Sheppard S.|16-OCT-95|||Lissadell & Dixon Range 1:250 000 sheet areas (east Kimberley region). Part of Lamboo Complex. Age updated by I.Sweet.|Medium-grained biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Kevins Dam Suite|31898|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Sally Downs Supersuite|31785|Orosirian|1840||||Orosirian|1864||inferred, underlying unit|||||No|50437||||||Lissadell & Dixon Range 1:250 000 sheet areas (east Kimberley region). See also Kevins Dam suite.|Mainly massive, medium-grained, even-textured and porphyritic biotite monzogranite and syenogranite; mafic enclaves|acid intrusive rock|||Y||17-JAN-23
Keyling Formation|9483|Keyling Member|22090|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Kulshill Group|9896|||Artinskian||||deposition|Sakmarian|||||||NT|No|41459|67354|||||Reserved as Keyling Member by Mory, J. (1986). Gas prone.|Mainly sandstone; lesser siltstone, shale, coal, conglomerate; very minor limestone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Kiaka Sandstone Member|9506|Kiaka Member|9505|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|36293|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kiaki Monzogranite|35607|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean|2666|6||magmatic crystallisation|Archean|2692|8||||||No|23582||Painter M.|20-SEP-00|||To be used in Mount Belches 3335 1:100 000 sheet explanatory notes.|Leucomonzogranite, typically deeply weathered; includes hornfelses Mount Belches Formation. High Ca granite.|acid intrusive rock|||Y||17-JAN-23
Kialrah Rhyolite|35001|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Bookingarra Group|29942|||Mesoarchean|2941|4||minimum depositional age|Mesoarchean|2948|3|isotopic, U/Pb|maximum depositional age||1000|WA|Yes|23598||||||Age 2970 Ma. Formerly of the Bookingarra Group. In the Mallina Basin. Within the De Grey Supergroup. Assigned to Croyden Group in 2006. Returned to Bookingarra Group in 2017 redefinition.|Flow-banded porphyritic rhyolite and minor dacite; metamorphosed.|acid volcanic rock|||N||17-JAN-23
Kiangi Creek Formation|27174|||||Yes|Formation, beds|Formal|Other new published name|Defined|Edmund Group|34906|||Calymmian|1465||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||200|1800|WA|No|44319|24183|||||In the Edmund Basin. Within the Bangemall Supergroup. Contains stromatolites.|Siltstone, fine- to very coarse-grained sandstone, dolostone; minor conglomerate, chert, felsic volcanic rock. Separately mapped: medium- to very thick-bedded quartz sandstone and siltstone; siltstone, minor fine-grained sandstone, dolostone, chert.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Kilba Granite|9540|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|29845||||||Gascoyne Province. Shown as -Pge on Yanrey-Ningaloo 1:250k map sheet.  Parent Boolaloo Supersuite discontinued by GSWA; now part of Moorarie Supersuite (S.Sheppard, pers. comm., 2008)|Even grained tonalite-adamellite|acid intrusive rock|||Y||17-JAN-23
Kilkenny Gabbro|37199|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||600||No|23573||||||Variation of Mount Kilkenny Gabbro (Reserved). A gabbroic sill with pronounced igneous layering into a lower olivine-plagioclase zone and an upper augite-plagioclase cumulate zone.|Gabbro and olivine-plagioclase to pyroxene-plagioclase cumulate rocks; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Killaloe Formation|9558|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||deposition|Archean||||||||No|30959||||||Norseman region.|Felsic volcanic and volcaniclastic rocks.|acid igneous rock|||N||17-JAN-23
Killara Formation|22095|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Mooloogool Group|22371|||Statherian|1652|23|inferred, intrusive relationship|deposition|Statherian|1764|13||||1000|WA|No|43238|65419|Pirajno F.|19-OCT-94|||SG50-12, Glengarry. Includes the 'Dolerite' of MacLeod (1970) and in part the 'Narracoota Volcanics' of Gee (1979, 1987, 1990).  Maximum age from detrital zircons.|Fine grained basalt with intergranular or intersertal textures, varying to microporphyritic in places; cherty and more thinly layered with interflow sedimentary rocks in the upper parts.|basic volcanic rock|sedimentary rock|continental rift|N||17-JAN-23
Killara Formation - dolerite|74420|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Killara Formation|22095|||Orosirian||||eruption|Orosirian||||||||No||||||||Calc-alkaline to tholeiitic basalt and basaltic andesite. Includes volcanics and dolerite sills and dykes. Minor pyroxenite in places|basic volcanic rock|basic intrusive rock||Y||17-JAN-23
Killi Killi Formation|35397|Killi Killi Beds|9559|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tanami Group|17763|||Orosirian|1821|4|inferred, intrusive relationship|deposition|Orosirian|1848|22|inferred, intrusive relationship||4000|5000||No|50315||Hendrickx M.|11-JAN-00|||In the Tanami area. Includes the informally named Jasperlitic Chert member. Correlates with the Lander Rock beds in the Arunta region. Ages derived from tuff in underlying Callie Member (Dead Bullock Formation), and intrusive Water Tower Tonalite. Hosts gold.  Prospectivity increases where crustal-penetrating structures intersect claystone facies.|Schistose to phyllitic greywacke, siltstone and shale; minor lithic sandstone, granule conglomerate, quartzite, banded chert, basalt and dolerite. Locally contact metamorphosed to biotite zone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kilykilykarri Member|80176|||||Yes|Member, phase|Formal|Other new published name|Described|Kathleen Ignimbrite|9315|||Mesoproterozoic|||||Mesoproterozoic||||||50||No|71211|||||||Well-sorted, stratified and graded, rhyolitic, volcaniclastic interbedded pebbly conglomerate, breccia, sandstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Kimberley Group|9572|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Statherian|1790||isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1834|3|isotopic, U/Pb-Pb/Pb ion probe||3000|3500||No|44317||||||Defn on Tech File E/52-2. c/ 1800 Ma. Intruded by sills of Hart Dolerite and by Aries kimberlite. See also Kimberley Group, Upper and Kimberley Group, Lower. Kimberley Basin, North Australian Craton.|Quartz sandstone, minor fine- to medium-grained feldspathic sandstone; micaceous and glauconitic sandstone, shale pellet conglomerate; siltstone, quartz basalt, argillaceous quartz sandstone.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Kimberley Group, lower|40489|Kimberley Group|9572|||Yes|Subgroup|Informal|Variation of published name|Briefly described|Kimberley Group|9572|||Paleoproterozoic|||||Paleoproterozoic||||||||No|24572||||||Informal subdivision of Kimberley Group. Kimberley Basin, North Australian Craton. Includes King Leopold Sandstone, Carson Volcanics, Wunaamin Miliwundi Sandstone.|||||N||17-JAN-23
Kimberley Group, upper|40484|Kimberley Group|9572|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Kimberley Group|9572|||Paleoproterozoic|||||Paleoproterozoic||||||||No|24572||||||Includes Yampi Formation, Pentecost Sandstone, Elgee Siltstone, Warton Sandstone.|||||N||17-JAN-23
Kimmys Bore Monzogranite|68664|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Split Rock Supersuite|68672|Mesoarchean||||intrusion|Mesoarchean||||||||No|63420||Van Kranendonk, M.  (GSWA)|04-APR-05|||To be used on the CARLINDIE mapsheet; nearest town is Port Hedland.|Biotite monzogranite; homogeneous, equigranular to seriate.|acid intrusive rock|||Y||17-JAN-23
King Granodiorite|30669|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43281||||||King Leopold Orogen [?]. Of Paperbark Supersuite, so must be Lamboo Province.|Granodiorite|acid intrusive rock|||Y||17-JAN-23
King of the Hills Dolerite Member|80606|King of the Hills Dolerite|79235|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||350||No|||Wyche, S., Sapkota, J. (GSWA)|03-JUL-18|||a prominent, east-northeasterly trending, dolerite dyke, assigned to the Widgiemooltha Dolerite, that is evident on aeromagnetic images over a strike length of about 80 km between Sturt Meadows homestead (Zone 51J, MGA 301680E 6826130N) on WILBAH and Charlie Bore (Zone 51J, MGA 377820E 6838600N) on MINERIE. It forms locally prominent outcrops and hills where it is strongly contaminated and contains numerous felsic xenoliths. Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. See lso GSWA ENS: Wyche, S and Sapkota, J 2018, King of the Hills Dolerite Member (P_-_wh-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite with abundant felsic xenoliths.|basic intrusive rock|||Y||17-JAN-23
Kingia Sandstone|80078|Kingia Formation|42065|||Yes|Member, phase|Informal|Resvd name published|Described|High Cliff Sandstone|8332|||Cisuralian|||inferred, overlying unit||Cisuralian|||inferred, underlying unit|||||No|69182||||||Appears in the Hovea 4 strat column, onshore Perth Basin, and is intersected in the Waitsia field, Waitsia -1 (see well completion report p15, and Tupper et al (2016) APPEA paper. Probably the uppermost member of the High Cliff Sandstone.||siliciclastic sedimentary rock|||N||17-JAN-23
Kings Park Formation|9612|Kings Park Shale|9614|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|||||Eocene|56|||deposition|Paleocene|60|||||530|WA|No|31568|12759||||||Grey, calcareous, glauconitic siltstone and shale of shallow marine to estuarine origin. Minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Kingswood Basalt Member|29247|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Archean||||eruption|Archean||||||||No|30562|||||||Basalt|basic volcanic rock|||N||17-JAN-23
Kinmore Group|9623|Kinmore Member|22111|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Anisian|242||biozone|deposition|Artinskian|287||biozone|||1800||No|41459||||||Previously Port Keats Group.|Siltstone, glauconitic in part, shale, sandstone, fossiliferous limestone, rare coal.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Kintore Tonalite|9630|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42697||||||Not related to Kintore Granite, Qld. Invalidates the reservation of Kintore Dam Formation, WA.|Medium-grained biotite tonalite; metamorphosed|acid intrusive rock|||Y||04-MAY-23
Kirgella Granitoid Gneiss|31363|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|43593|||||||Gneiss|high grade metamorphic rock|||Y||17-JAN-23
Kirkby Range Member|9637|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Hardman Formation|8081|||Wuchiapingian|||biozone|deposition|Wuchiapingian|||biozone|||75|WA|No|33962|33962||||||Mudstone, fine sandstone, calcareous, laminated to thin bedded, ripple marked; minor conglomerate lenses; fossiliferous.|siliciclastic sedimentary rock|||N||17-JAN-23
Kirup Conglomerate|9646|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Eocene||||deposition|Eocene|||||||WA|No|30146|37341||||||Conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kiwirrkurra Formation|73692|Pollock Hills Formation|15411|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoproterozoic|||inferred|deposition|Mesoproterozoic|1633|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|64580||Tyler, I.  (GSWA)|11-OCT-07|||For use on mapsheet WEBB; nearest town Kiwirrkurra. To be pub: as part of Interpreted Bedrock Geology map of WEBB 1:250K sheet/part of MACDONALD 1:250K sheet. GSWA in early 2008. Originally mapped as part of Pollock Hills Formation. North Australian Craton.  Conservative max depositional age, 1633+/-6 Ma, however depositional age could be considerably younger (Kirkland et al. 2009).|Red-weathering, lithic sandstone, quartz sandstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Knapp Head dolerite dyke|83642|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Stenian|1124|80|isotopic, U/Pb-Pb/Pb ICP-MS||Stenian|1124|80|isotopic, U/Pb-Pb/Pb ICP-MS|magmatic crystallisation||||No|73480||||||Age from U-Pb apatite dating. Over 15 m wide steeply dipping dyke, northwest-strike. Suggested to be related to Marnda Moorn large igneous province. Hosted in granite.|Medium-grained dolerite dyke, metamorphosed to at least greenschist facies.|basic intrusive rock|||Y||23-MAR-23
Knobbly Gabbro|80120|||||Yes|Formation, beds|Informal|Other new published name|Described|Bounty Igneous Complex|78349|||Neoarchean|||inferred||Neoarchean|||inferred|||300||No|71212|||||||Medium-grained and massive to locally moderately-foliated gabbro.|basic intrusive rock|||Y||17-JAN-23
Knobby Sandstone|9677|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian|||inferred, overlying unit|deposition|Middle Devonian|||||||WA|No|33962|45153|||||Fragmentary fish fossil assemblage includes Bothriolepis and an asterolepid, probably Remogolepis, presumed to be of Famennian age (Young, 1987a).|Fluvial fossiliferous medium to coarse grained cross-bedded quartz sandstone with abundant mudstone pellets in places; minor interbedded siltstone and pebble to boulder conglomerate.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Knox Siltstone Member|26270|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Burt Range Formation|3168|||Tournaisian||||deposition|Tournaisian|||||||WA|No|40792|40792|J.Lee|23-SEP-85|||Possible source of Turtle-Barnett oil.|Siltstone; Dolomitic siltstone and dolomite; basal dolomitic breccia.|siliciclastic sedimentary rock|||N||17-JAN-23
Kockatea Sequence|79246|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Lower Triassic|||||Lower Triassic||||||||No|70097||||||Offshore Perth Basin. See also Kockatea Shale.|||||N||17-JAN-23
Kockatea Shale|9696|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Olenekian|246|7|inferred, biostratigraphic correlation|minimum depositional age|Changhsingian|||inferred, biostratigraphic correlation||1060|1150|WA|No|43976|36293|||||See also Lexicon. Numerical age from 2004 APPEA reference table. No further information.|Shale; minor siltstone and sandstone; in places calcareous; sandstone members at base.|fine grained siliciclastic rock|||N||17-JAN-23
Kodj Kodjin Sandstone|34484|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|22769|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kojarena Sandstone|25975|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Champion Bay Group|25840|||Bajocian||||deposition|Bajocian||||||34|WA|No|34134|36293||||||Red-brown, medium- to coarse-grained ferruginous sandstone; claystone at base.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Kojonup Sandstone|9714|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Late Eocene||||deposition|Lutetian||||||||No|31562|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kongorow Granite|9760|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Paleoproterozoic||||intrusion|Paleoproterozoic|1852|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|30525|||||||Foliated porphyritic biotite-rich metamonzogranite and metagranodiorite with mafic xenoliths and gneissic bands.|metamorphosed acid igneous rock|||Y||22-SEP-23
Kooallup Limestone|73564|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Upper Pleistocene||||deposition|Upper Pleistocene||||||16||No|63454|63454|||||Defined by V. Semeniuk (1995). On Yalgorup Plain. Thickness: 10m at type section. Proposed as as new component to Kwinana Group by B.Gozzard (approved by R.Hocking but not published as yet) and spelling with two letter ''l's" confirmed 30/1/08.PP.|Calcarenitic aeolianite, and beach and marine calcarenites; shoaling and seagrass facies.|carbonate sedimentary rock|||N||17-JAN-23
Kookhabinna Sandstone|9766|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29845|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Koolan Island iron formation|9768|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39948|||||||Iron formation||||N||17-JAN-23
Koolanooka Porphyry|9769|Koolanooka Quartz-Porphyry|9770|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||Archean||||eruption|Archean||||||||No|40346|||||||Porphyry|igneous rock|||U||17-JAN-23
Koolbye Formation|22123|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Turee Creek Group|18702|||Siderian||||deposition|Siderian||||||130||No|43290||Thorne A.M.|08-NOV-94|||Rocklea 1:100k, Pilbara. Said to be of Turee Creek Basin in 2012.|Fine- to coarse-grained metamorphosed quartzitic sandstone, minor pelite and metaconglomerate.|metasedimentary siliciclastic rock|metasedimentary carbonate rock||N||17-JAN-23
Koolera Member|25129|Koolera Sandstone Member|9773|||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40347|||||||||||N||17-JAN-23
Kooline group|34416|||||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|22716||||||Mentioned in the text.|||||N||17-JAN-23
Koolyu Granite|31878|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||O'Callaghans Supersuite|31858|Neoproterozoic|625|||intrusion|Neoproterozoic|625|||||||No|50436||||||Of Sexton (1994).  Of the O'Callaghans Supersuite.|monzogranite to syenogranite|acid intrusive rock|||Y|I-type|17-JAN-23
Koombana Beach Rock|25978|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Holocene|||||Holocene|||||||WA|No|40367|40367||||||||||N||17-JAN-23
Koomberan Greywacke|9789|Koomberan Greywacke Member|9787|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian|||||Sakmarian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-1.|Greywacke||||N||17-JAN-23
Koondooloo Monzogranite|22127|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Kevins Dam Suite|31898|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|43863||Sheppard S.|01-JAN-95|||east Kimberley|Foliated to massive, medium- to coarse-grained biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Koongaling Volcanic Member|34998|Koongaling Volcanics|9792|||Yes|Member, phase|Formal|Variation of published name|Fully described|Hardey Formation|8075|||Neoarchean|2757||isotopic, U/Pb|eruption|Neoarchean|2764|8|isotopic, U/Pb|||2000||No|23594||||||Within the Fortescue Group (Mount Bruce Supergroup).|Porphyritic and fine-grained dacite, rhyodacite, rhyolite lava.|acid volcanic rock|||N||17-JAN-23
Koongie Park Formation|9793|Koongie Park Member|23704|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Orosirian|1840|4|isotopic, U/Pb-Pb/Pb ion probe|eruption|Orosirian|1845|3|isotopic, U/Pb-Pb/Pb ion probe|||1000|WA|Yes|42768|23621|Griffin T. J. , Tyler I.M.||Hocking, R.|22-APR-99|Upgraded to formation status on ANGELO and DOCKRELL sheets (Griffin and Tyler 1994). Prev. mapped as Biscay and Olympio Fms. Also referred to as Koongie Park  Member /Tickalara Metamorphics (Griffin and Tyler 1992). In the Central Zone of Lamboo Complex.|Metamorphosed felsic volcanic and volcaniclastic rocks, metasedimentary rocks, metabasalt, and hornfels; locally migmatitic; minor chert, banded iron-formation, and carbonate; locally intimately veined by granitic rocks and gabbro.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Koongie Park Suite|31899|||||Yes|Group, Suite|Informal|STRATLEX Entry|Briefly described|||||Paleoproterozoic|1818||||Paleoproterozoic|1865|||||||No|50437|||||||||||Y||17-JAN-23
Koonong Member|67860|||||Yes|Member, phase|Formal|Other new published name|Described|Bywash Formation|41597|||Statherian||||eruption|Orosirian|1804|7|isotopic, U/Pb-Pb/Pb ion probe|||20|WA|No|24544||||||Age: 1804+/-7 Ma. Parent from Capricorn 1:100k sheet.|Thin- to thick-bedded, massive to planar laminated felsic volcaniclastic rock, and accretionary lapilli tuff.|acid volcanic rock|||N||17-JAN-23
Koonoonooka monzogranite|33898|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean||||intrusion|Archean||||||||No|23281|||||||monzogranite|acid intrusive rock|||Y||17-JAN-23
Kopke Sandstone|23705|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Pragian||||deposition|Lochkovian||||||496|WA|No|40617|40617|R.M.Hocking, H.T.Moors|23-MAY-83|||Only known from subsurface. Hocking (1985) erected type section in Yaringa-1 at 326-855m. The basal 33m assigned in 1994 to underlying new unit, Faure Formation. Previously of Kalbarri Group, but this Group name has been abandoned.|Upward coarsening red and brown micaceous sandstone, with minor dolomite and siltstone. Bioturbation at top of section and cross-bedding present.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Korojon Calcarenite|9823|Korojon Calcilutite|9824|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Maastrichtian|||||Campanian||||||80|WA|No|44537|48861|||||See also Lexicon. Status as formation was not changed when Cardabia Group was revised down to Cardabia Calcarenite.|Predominantly calcareous pelagic deposits: silty calcarenite and calcisiltite with abundant fragments of the bivalve Inoceramus.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Korojon-Miria group|74422|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Upper Cretaceous||||deposition|Upper Cretaceous||||||||No|71267||||||'Group' erected for 1:1 million mapping purposes only.|Calcarenite and calcisiltite, fossiliferous chalk, glauconitic marl; shallow marine.|carbonate sedimentary rock|||N||20-AUG-23
Krackatinny Suite|74110|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||Krackatinny Supersuite|31857|Mesoproterozoic|||||Mesoproterozoic||||||||No|24197||||||Example of the Sally Downs Association. Emplaced at ~1310Ma(?). In the Paterson Orogen. Appears to intrude the Rudall Complex.|Weakly deformed and metamorphosed felsic and mafic igneous rocks; minor quartzite, mafic and ultramafic schists, amphibolite, and banded iron-formation.|basic igneous rock|acid igneous rock||Y||17-JAN-23
Krackatinny Supersuite|31857|||||Yes|Supergroup|Formal|STRATLEX Entry|Described|||||Calymmian|1310|4|||Calymmian|1590|||||||No|50436||||||Tabletop 1:250k Intrudes the Rudall Complex.|Weakly deformed and metamorphosed felsic and mafic intrusive rocks.|igneous intrusive rock|||Y||17-JAN-23
Krackatinny Tonalite|31776|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Krackatinny Suite|74110|Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|50436||Smithies R.H., Wyborn L.A.I.|30-SEP-97|||Blanche 1:100k sheet area, 3552 (Tabletop 1:250k). For a tonalite. Shown as -Pgf on Connaughton 1:100k geological sheet.  Within the Krackatinny Supersuite.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Kudata Dolomite|22137|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Prices Creek Group|15573|||Middle Ordovician||||deposition|Lower Ordovician||||||85|WA|No|43563|43803|Laurie J.R.|12-AUG-92|||Prices Creek Group, Canning Basin. Paper in BMR Journal|Dolomite.|carbonate sedimentary rock|||N||26-JUL-23
Kulail Sandstone|33810|Dean Quartzite|5300|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Tonian|||inferred, overlying unit|deposition|Tonian|||inferred||60||NT|Yes|50321|65256|Edgoose C., Close D.|23-NOV-99|Kruse, P.D.|21-JAN-02|Bloods Range 1:250 000 map sheet area. Type Section: 24 38' 02.97S, 129 24' 18.4E (WGS84) Age: Similar age to Dean Quartzite Age: ~850Ma. Previously included in Dean Quartzite.|Red/purple crystalline quartz sandstone, abundant trough cross-beds, local heavy mineral layers of hematite and magnetite.|siliciclastic sedimentary rock|||N||17-JAN-23
Kulail Sandstone and Dean Quartzite|82846|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Tonian|810||inferred||Tonian|976||inferred|||||No|||||||Composite unit used in IBG (interpreted bedrock geology) GSWA 2020.|Purplish-red, brown and white, quartzofeldspathic and quartz sandstone; medium-grained, white, well-silicified quartz sandstone; locally pebbly and conglomeratic; locally metamorphosed.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kulele Limestone|25725|Kulele Creek Limestone|9874|||Yes|Formation, beds|Formal|Other new published name|Redefined|Miningarra Group|79473|||Paleoproterozoic||||deposition|Paleoproterozoic||||||300|WA|No|30010|40938|||||Formerly within the Earaheedy Group. In type locality at Mount Throssell - 300m thick.|Stromatolitic, oolitic and pisolitic limestone, calcarenite and mudstone, separated by shale and sandstone bands mainly in the upper part.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Kulkatharra Dolerite|73260|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Warakurna Supersuite|73257|Stenian|1067|||intrusion|Stenian|1084|||||||No|64580||Thorne, A. (GSWA)|10-MAY-07|||Reserved for use on PEEDAWARRA 1:100K Sheet.  Nearest town: Paraburdoo. Sills intrude Edmund and Collier Groups. Age: 1070Ma.  Published in the 2008 1:500K Interpreted Geology of WA (GIS Dataset) - to be indexed (OR, 23-9-08). Warakurna Large Igneous Province.|Dolerite and gabbro sills.|basic intrusive rock|||Y||04-OCT-23
Kullal Dolerite|79625|Kullal Dyke Suite|74604|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoproterozoic|1000||isotopic, Sm/Nd isochron age|intrusion|Mesoproterozoic|1040||inferred, intrusive relationship||||WA|No|68996||||||Crosscuts both mafic and felsic intrusive rocks of the 1085-1040 Ma Warakurna Supersuite, and is in turn cut by the c. 825 Ma Gairdner Dolerite. However, a better indication of this suite's age was obtained from a poorly constrained Sm-Nd mineral isochron obtained from one of the Kullal Dolerite dykes, which yielded an age of c. 1000 Ma (Glikson et al., 1996). See also GSWA ENS: Howard, HM 2018, Kullal Dolerite (P_-_kl-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>. or https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=787 .|Dyke suite consisting of fine-grained; olivine and plagioclase porphyritic dolerite and meta-dolerite; typically porphyritic texture or granoblastic where metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Kulshill Group|9896|Kulshill Formation|9894|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Artinskian|287||||Bashkirian|311|||||5000||No|41459||||||Hosts oil and gas.|Friable feldspathic sandstone, siltstone, claystone, coal. Some diamictite and conglomerate. Fluvial and fan delta with glacial influence.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Kumina Conglomerate|23707|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Pleistocene||||deposition|Neogene||||deposition||100|WA|No|38776|38776|J.C.Barnett|01-DEC-80||||Loosely cemented boulders, cobbles, gravel and sand in a brown silty-clay matrix; ferruginous at base.|siliciclastic sedimentary rock|||N||17-JAN-23
Kunagunarrina Formation|32218|||||Yes|Formation, beds|Formal|Resvd name published|Described|Sulphur Springs Group|32237|||Paleoarchean|3235|||deposition|Paleoarchean|3251|||||3000||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755.  In the Pilbara Craton. Within the Pilbara Supergroup. Tambourah 1:100 000 age: c.3290-3252 Ma. East Pilbara Terrane. See also misspelling Kunagunarinna Formation.|Dominantly komatiitic, high-Mg and tholeiitic metabasalt, metamorphosed to greenschist facies; shale; cobble to pebble conglomerate; quartz-rich sandstone; wacke; chert.|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
Kunderong Sandstone|26674|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Bresnahan Group|27346|||Calymmian||||deposition|Statherian||||||||No|34135|||||||Sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Kundip Quartzite|9907|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount Barren Group|27840|||Paleoproterozoic|1693|4|inferred, overlying unit|deposition|Paleoproterozoic||||||||No|9173||||||Intruded by dolerite sills.|Quartz arenite and metaquartzite with chlorite and mica|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Kungangie beds|9908|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|45153|||||||||||N||17-JAN-23
Kungarra Formation|26271|||||Yes|Formation, beds|Formal|Other new published name|Defined|Turee Creek Group|18702|||Siderian|2208|10||maximum depositional age|Siderian|2449|3||||2800|WA|No|35976|35976|Trendall, A.F.|19-OCT-78|||Max Age: 2449 (+/-) 3 Ma. ?Based on age of underlying Woongarra Rhyolite?|Argillite and subordinate thin- to thick-bedded sandstone; local stromatolitic dolomite, diamictite, iron formation; intruded by Balgara Dolerite sills|metasedimentary siliciclastic rock|||N||05-MAY-23
Kunian Sandstone|22146|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Prices Creek Group|15573|||Middle Ordovician||||deposition|Lower Ordovician||||||112|WA|No|43563|43803|Laurie J.R.|12-AUG-92|||Basal Prices Creek Group, Canning Basin. Paper in BMR Journal.|Quartz-lithic arenite with occasional glauconite-rich units throughout.|siliciclastic sedimentary rock|||N||26-JUL-23
Kuniandi Group|25981|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Ediacaran|610|||deposition|Cryogenian|700|||||100|WA|No|44366|48927|||||Correlates with Duerdin Group.  On MOUNT RAMSAY sheet.|Siltstone, sandstone, shale, feldspathic wacke, dolomite, and tillite.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Kunmarnara Group|74752|||||Yes|Group, Suite|Formal|Resvd name published|Defined|Bentley Supergroup|1491|||Stenian|1076|7|||Stenian|1172|8||||||No|65135||Howard, H. (GSWA)|07-OCT-08|||Bentley Basin. These rocks previously included in the Tollu Group. Named for Kunmarnara Bore. Constituents also includes an unnamed mixed amygdaloidal basalt and microgabbro unit and an unnamed unit of strongly foliated quartz-pebble conglomerate, feldspathic sandstone, muscovite quartzite, and phyllite.|Undivided siliciclastic and mafic volcanic rocks; minor felsic volcanic rocks|siliciclastic sedimentary rock|basic volcanic rock||N||05-MAY-23
Kununurra Formation|9911|Kununurra Member|26675|||Yes|Formation, beds|Formal|Other new published name|Fully described|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||||No|40993|||||||Limestone|carbonate sedimentary rock|||N||17-JAN-23
Kuriyippi Formation|9923|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kulshill Group|9896|||Sakmarian||||deposition|Bashkirian|||||||WA|No|41459|41532|A.J.Mory|26-AUG-87|||See also misspelt Kurriyippi Formation.|A thick succession of 30-90m-thick upward-fining cycles of sandstone and lesser amounts of siltstone, shale and minor coal, overlain by glacial sandstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Kurrajong Complex|40772|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described||||||||||||||||||No|24494||||||May be replaced by Kurrajong Monzogranite of Roberts et al (2004)?|Komatiite||||N||17-JAN-23
Kurrajong Monzogranite|75854|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|64775||||||May replace Kurrajong Complex of Painter (2003) or accidental formalisation of a monzogranite in the Kurrajong Complex?||acid intrusive rock|||Y||17-JAN-23
Kurramia Conglomerates|9926|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|36869|||||||Conglomerate|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Kurrawang Formation|26677|Kurrawang Conglomerate|9928|||Yes|Formation, beds|Formal|Variation of published name|Described|Kurrawang Supersequence|34371|||Neoarchean|2655|||deposition|Neoarchean|2679|10|inferred|||2000||No|46311||||||See also Kurrawang Conglomerate, misspelt Karrawang Formation. In the Kalgoorlie Terrane in Eastern Goldfields Superterrane of the Yilgarn Craton. Superseded by Kambalda Komatiite?[?this seems unlikely given very different lithologies - CEB Nov2012]|Coarse, poorly sorted polymictic conglomerate; a variety of clasts including BIF and granite. Grades up into fine-grained sandstone and siltstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Kurrparu Member|80175|||||Yes|Member, phase|Formal|Other new published name|Described|Kathleen Ignimbrite|9315|||Stenian|1071|5|isotopic, U/Pb-Pb/Pb ion probe||Stenian||||||500||No|71211|||||||Massive, poorly-sorted, matrix supported, quartz-feldspar rhyolitic, lapilli-tuff facies.|acid volcanic rock|||N||17-JAN-23
Kuruman Iron Formation|9938|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41997|||||||||||N||17-JAN-23
Kuruna Member|36835|Kuruna Siltstone|27454|||Yes|Member, phase|Formal|Variation of published name|Fully described|Maddina Formation|35002|||Neoarchean|2713|||eruption|Neoarchean|2717|||||70||No|23575||||||See also Kuruna Siltstone. Of Thorne and Tyler, 1996. Sandstone is stromatolitic.|Basaltic to andesitic vitric, lapilli, crystal and lithic tuff, tuffaceous sandstone and siltstone, mudstone, chert, dolomite.|igneous volcanic rock|sedimentary rock||N||17-JAN-23
Kutakuta Tonalite|31778|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Krackatinny Supersuite|31857|Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|50436||Smithies R.H., Wyborn L.A.I.|30-SEP-97|||Blanche 1:100k sheet area, 3552 (Tabletop 1:250k). For a granite.|Tonalite|acid intrusive rock|||Y||17-JAN-23
Kwinana Group|25141|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Pleistocene|||||Pleistocene|2||||||WA|No|36293|36293|||||Additional components to be designated by B.Gozzard (approved by R.Hocking) 24 January 2008; these include Tims Thicket Limestone, Koalup Limestone, Leschenault Formation, and Perth Formation. See separate units for details. PP Jan08.|||||N||17-JAN-23
Kyarra Basalt|73929|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Kalgoorlie Group|26647|||||||eruption|||||||||No|62108||||||||basic volcanic rock|||N||17-JAN-23
Kybulup Schist|9967|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Barren Group|27840|||Mesoproterozoic||||deposition|Paleoproterozoic|1693|4|inferred, underlying unit|||||No|9173||||||Hosts the Hamersley Gorge (average grade 31.4% Mn) and Coppermine Creek (44% Mn) manganese deposits.|Siltstone, shale, sandstone, phyllite, schist with kyanite, garnet, staurolite.  Cross-bedding common.|fine grained siliciclastic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Kylena Formation|34040|Kylena Basalt|9974|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2735|6|inferred|eruption|Neoarchean|2749|5|inferred|||1300||No|23598||||||Part of Lower Fortescue Group. Name replaces Kylena Basalt, Kylena Basalt Member and Kylena Volcanics.  Age: 2749-2735 Ma (Blake, 2001); ~2741Ma. Locally intruded by the Cooya Pooya Dolerite. Includes the lower part of the now abandoned Little de Grey Lava. Age range from Trendall et al (2004), RefID 60706. Oakover Basin.|Basalt, andesite, dacite, high-Mg basalt, rhyolite; basaltic agglomerate; dolerite; grey carbonate rock with microbial laminations and stromatolites; sandstone; pillow breccia; tuff, limestone, conglomerate.|basic volcanic rock|acid volcanic rock||N||17-JAN-23
Kynea Migmatite|80947|Kynea Tonalite|78356|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|||||Mesoarchean|||||Mesoarchean|2950|30|isotopic|||||No|||Zibra, I. (GSWA)|27-MAR-19|||Type area: Outcrops around Kynea Rockholes, lat 28deg41', long 116deg40'. Metamorphosed 'basement' unit, no known older units in region.|Migmatitic gneiss (tonalitic to granodioritic) with monzogranitic leucosomes.|metamorphosed acid igneous rock|||Y||17-JAN-23
Labouchere Formation|25983|Labouchere Beds|9984|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Padbury Group|27093|||Orosirian|1811||inferred, intrusive relationship|deposition|Orosirian|1983||inferred, underlying unit|||7000|WA|Yes|29663|49896|Gee R.D.|14-AUG-79|WA SNSC|14-SEP-79|Published defn Barnett (1975). Redefined by Gee (1979) - see card. Variously interpreted to be of Padbury Group, then Glengarry Group, Bryah Group; reassigned to Padbury Gp (Occhipinti et al 1997). Lack of detailed stratigraphic information has led to indecision re. status.|Quartz wacke and siltstone with local quartz-pebble conglomerate beds; includes quartz schist, quartz-muscovite schist, and minor biotite-muscovite schist, locally with chloritoid, staurolite, and/or andalusite|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||08-MAY-23
Labouchere Formation - banded iron formation|74423|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Labouchere Formation|25983|||Statherian||||deposition|Orosirian||||||||No||||||||Banded iron formation|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Lacey Creek Formation|28661|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|39210|||||||||||N||17-JAN-23
Lacuna Supersequence|34375|Brockman Supersequence|33840|||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Siderian|2499||||Archean|2543|||||||No|22682||||||2543-2499 Ma. Previously part of the Brockman Supersequence|||||N||17-JAN-23
Lady Adelaide Orthogneiss|39511|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Tambina Supersuite|68742|Paleoarchean|3315||inferred, structural relationship||Paleoarchean|3430||inferred, intrusive relationship||||WA|No|65726||Williams, I.|23-OCT-03||||Leucocratic biotite- and muscovite-bearing, quartzofeldspathic orthogneiss, strong gneissic fabric; the protolith was probably granodiorite to tonalite in composition.|metamorphosed acid igneous rock|||Y||17-JAN-23
Lady Alma Igneous Complex|74873|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Meeline Suite|74822|Mesoarchean||||intrusion|Mesoarchean|2821|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|3000|5000||No|64891||Van Kranendonk, M. (GSWA)|10-NOV-08|||Geological province: Murchison Domain.  Ages:2821+/-5Ma, 2810+/-5Ma and 2815+/-7Ma (zircon from gabbro) - but these zircon ages are older than interpreted host rock age and are therefore, probably inherited zircons. When reserved age stated to be c.2780Ma.|Layered gabbro and anorthosite, with magnetitite and pyroxenite layers, and thick ultramafic cumulates; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||06-JUN-23
Lady Bountiful granite|10000|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|42156||||||||acid intrusive rock|||Y||17-JAN-23
Lady Mary Member|10003|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Lady Miller Jaspilite Member|10004|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Lagoon rhyolite|33912|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Archean|3000|||eruption|Archean|3000|||||||No|22449||||||In the Pilbara region.||acid volcanic rock|||N||17-JAN-23
Lagrange Calcilutite Member|74632|Lagrange|22157|||Yes|Member, phase|Formal|Resvd name published|Defined|Sandfire Calcilutite|74623|||Holocene||||deposition|Holocene||||||4|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Originally reserved as 'Lagrange'.|White/cream/grey bioturbated (locally laminated) and root-structured calcilutite with mangorove wood and mangrove-habitat molluscs; underlies salt flats, samphire flats, and mangrove flats.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lake Brazier Tonalite|67868|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|65258||||||East Yilgarn area, Norseman 1:100k sheet area.|Highly variable biotite- and hornblende-bearing tonalite to granodiorite.|acid intrusive rock|||Y|I-type|14-SEP-23
Lake Deborah Formation|34482|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|22769|||||||||||N||17-JAN-23
Lake Douglas Conglomerate Member|77927|Douglas Lake Member|21689|||Yes|Member, phase|Formal|Resvd name published|Described|Kurrawang Formation|26677|||Neoarchean|2640||inferred|deposition|Neoarchean|2657|7|isotopic, U/Pb-Pb/Pb ion probe|deposition||750|WA|No|70153||Hall, C. (GSWA)|27-JUN-13|||Map Sheet = Kalgoorlie. Lower section of the Kurrawang Formation, approximately 460 to 750 m thick. See also Lake Douglas Conglomerate. See also GSWA Explan. Notes: https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=3920 .|Polymictic conglomerate, sandy conglomerate to pebbly sandstone; clast-supported; clasts of granite, mafic volcanic, sedimentary and banded iron formation; metamorphosed.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Lake Dundas Monzogranite|67870|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||intrusion|Archean||||||||No|65258|||||||Medium- to coarse-grained, equigranular biotite monzogranite|acid intrusive rock|||Y||09-MAY-23
Lake George Formation|10051|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Cretaceous||||deposition|Upper Cretaceous||||||54||No|41751||||||Defined as Lake George beds in 1981. The WA Lake George nomenclature takes precedence over the informal Lake George Formation (NSW).|Massive, fine to very coarse poorly sorted fluviatile and partly pedogenic sandstone and conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Lake Gregory beds|10055|Lake Gregory Beds|10054|||Yes|Formation, beds|Informal|Unknown or process pending|Defined|||||Holocene||||deposition|Piacenzian||||||99|WA|No|45153|45153|||||Age: <3Ma.  Geological Province: Fitzroy Graben.|Lacustrine red brown and green sand, silt and clay with minor gravel, calcrete and gypsum|regolith|||N||17-JAN-23
Lake Johnston Granite|10057|Lake Johnston granite|10058|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|36566||||||||acid intrusive rock|||Y||17-JAN-23
Lake Kwornicup gneiss|10059|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|38578|||||||||||N||17-JAN-23
Lake Mackay Quartzite|75544|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Statherian|1750|19|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1780||inferred|maximum depositional age||||No|68994||Tyler, I. (GSWA)|17-NOV-09|||Quartzite and quartz-mica schist occuring on the WEBB 1:250 000 geological sheet to the north west of Lake Mackay in the Aileron Province of the west Arunta Orogen. SHRIMP U-Pb detrital zircon ages indicate a maximum depositional age of 1750 Ma. Published in GSWA Record 2013/9. p6-8 [to be indexed ASAP]. Aileron Province, Arunta Orogen, North Australian Craton.|Interbedded quartzite and quartz-mica schist.|metasedimentary siliciclastic rock|||N||17-JAN-23
Lake Medcalf Igneous Complex|77851|Lake Medcalf complex|10060|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean|||||Archean||||||||No|68520||||||Southern Cross Domain, Youanmi Terrane, Yilgarn Craton. Proposed to be added to Annean Supersuite (Ivanac, Sep2022).|Pyroxenite, metamorphosed; amphibolite after gabbro and dolerite, minor metamorphosed leucogabbro and pyroxenite.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Lake Shaster Monzonite|10070|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|40811||||||||intermediate intrusive rock|||Y||17-JAN-23
Lake Willson beds|35819|Lake Willson Beds|27458|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|65074||||||Age inferred only through its equivalence to the Birrindudu Group. Defined as Lake Willson Beds in 1977. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 352, 355. May be lateral equivalent of Birrindudu Group. Mesoproterozoic. See also misspelling 'Lake Wilson beds'.|Shallow marine stromatolitic chert, medium grained cross bedded sublithic sandstone siltstone and shale|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Lakeside Complex|79814|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described||||||||||||||||||No|71311||||||Introduced by Zibra in 2012 AJES 59(5) article. See also Lakeside Granite, Lakeside granite.|Porphyritic monzogranite, schlieren monzogranite, leucogranite, mylonitic monzogranite and leucogranite.|acid igneous rock|||Y||17-JAN-23
Lakeside Granite|80132|Lakeside Complex|79814|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|2700|||intrusion|Neoarchean|||inferred|||||No|69583||||||Unclear if this is an intentional formalisation of unit 79815 (Lakeside granite)[probably], or a deliberate name change from Zibra's 2012 useage of Lakeside Complex [which was used again in 2014].|Tonalite to monzogranite.|acid intrusive rock|||Y||17-JAN-23
Lakeside Limestone Member|73566|||||Yes|Member, phase|Formal|Other new published name|Described|Kooallup Limestone|73564|||Upper Pleistocene||||deposition|Upper Pleistocene||||||||No|63454||||||See also Lakeside Member. On the Yalgorup Plain.|Aeolianites; cross-laminated to structureless, fine and medium calcarenite. Type location is same as for the formation.|carbonate sedimentary rock|||N||17-JAN-23
Lakeside granite|79815|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|69583||||||Same as Lakeside Complex.||acid intrusive rock|||Y||17-JAN-23
Lakewood Dolerite|80590|Lakewood Dolerite Suite|79228|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Proterozoic|541||inferred||Proterozoic|2500||inferred|||||No|||Wyche, S. , Wingate, M.T.D. (GSWA)|03-JUL-18|||East Yilgarn region. Mainly northwest-trending dykes intruding greenstones of the Eastern Goldfields Superterrane (Yilgarn Craton). Dolerite observed in drillcore. See also GSWA ENS: Wingate, MTD and Wyche, S (partial report), Lakewood Dolerite (P_-_lk-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 07 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Lalla Rookh Sandstone|28108|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Croydon Group|4964|||Mesoarchean|2931||inferred|deposition|Mesoarchean|2988||inferred|deposition||5000|WA|Yes|30766|31853|Hickman A.H., Lipple S.L.|14-MAY-74|WA SNSC|06-JAN-75|Once part of De Grey Group (NORTH SHAW 1:100k sheet. Then temporarily part of Goldsworthy Group (Van Kranendonk et al 2004) - being the eroded and deformed remnants of the De Grey Supergroup (upgraded unit name). Now redefined into Croydon Group (GSWA'06). GSWA IBG 2020 gives age range as  2988 - 2931 Ma.|Coarse grained to pebbly sandstone and pebble conglomerate; minor siltstone and grey shale; metamorphosed.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lalla Rookh Supersequence|33828|||||Yes|Formation, beds|Sequence stratigraphy|Other new published name|Described|||||Archean|2950||||Archean|3000|||||3000||No|22546||||||In Lalla Rookh Basin.|||||N||17-JAN-23
Lally Conglomerate|10094|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Furongian||||deposition|Wuliuan||||||33|WA|No|44397|48927|||||Defined as Adelaidean in 1972. Shown as Cambrian on 96/28219.|Fine to coarse quartz wacke, sandstone, cobble conglomerate, feldspathic sandstone and quartz sandstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Lalngang Sandstone|10097|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Fitzmaurice Group|6698|||Mesoproterozoic|1150||inferred|deposition|Mesoproterozoic|1250||inferred|||1400|NT|No|32310|48938|||||Defined in 1974. Se also Lalngang Formation. Correlates with Stonewall Sandstone, WA. Fitzmaurice Basin.|Silica-cemented quartz sandstone, commonly thickly bedded with locally abundant cross-beds and ripple marks; conglomerate, and minor siltstone. Becomes more argillaceous to the NW.|siliciclastic sedimentary rock|||N||17-JAN-23
Lambert Formation|26272|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Selandian|60|||deposition|Danian|65|||||300|WA|No|40800|40800|R.M.Hocking, H.T.Moors|25-NOV-83|||||carbonate sedimentary rock|||N||17-JAN-23
Lamboo Complex - granite and adamellite|74403|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Statherian||||intrusion|Orosirian||||||||No||||||||Medium to coarse and even-grained biotite muscovite adamellite and granite with microcline phenocrysts to 11cm, minor porphyritic granite, and quartz microcline muscovite tourmaline pegmatite|acid intrusive rock|||Y||17-JAN-23
Lamboo Province granitic unit 80974|80974|Lamboo Complex - granite and adamellite|74403|||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1788||inferred||Paleoproterozoic|1864||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Halls Creek Orogen, Lamboo Province. Variation also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area. In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Lamboo Province granitic unit', P_-gnl-LM.|Medium-grained leucocratic granite.|acid intrusive rock|||Y||17-JAN-23
Lamboo Province mafic-ultramafic intrusive rocks 83758|83758|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1805||inferred||Paleoproterozoic|1864||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Lamboo Province mafic--ultramafic intrusive unit', P_-xo-a-LM. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Mafic-ultramafic intrusive rock.|igneous intrusive rock|||Y||30-JAN-23
Lamboo Province ultramafic intrusive rocks 83757|83757|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1805||inferred||Paleoproterozoic|1864||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Lamboo Province ultramafic intrusive unit', P_-a-LM. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|ultramafic intrusive rocks, includein peridotite.|ultramafic intrusive rock|||Y||30-JAN-23
Lamboo Ultramafics|34448|Alice Downs Ultrabasics|268|||Yes|Formation, beds|Informal|Variation of published name|Described|Lamboo Complex|10109|||Orosirian|1835|||intrusion|Orosirian|1835|||||||No|23601||||||Informal name referring to ultramafic rocks of the Lamboo Complex. Intrudes Koongie Park Formation; intruded by Loadstone Monzogranite.|Metamorphosed ultramafic and mafic intrusives: metamorphosed peridotite, pyroxenite, gabbro, anorthosite, and amphibolite with interlayered medium grade metasediments|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Lamil Group|34421|||||Yes|Group, Suite|Formal|Other new published name|Described|Yeneena Supergroup|31375|||Cryogenian|678||inferred, intrusive relationship|deposition|Neoproterozoic|1070|||maximum depositional age||||No|44111||||||Hosts Telfer gold mineralisation.|Quartz sandstone, conglomerate, carbonate, siltstone, and shale; minor pyritic shale.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||23-MAR-23
Lamont Sandstone|27459|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cape Range Group|3521|||Miocene|14|||deposition|Miocene|16|||||10||No|44657|||||||Fine to very coarse, mostly silicified and moderately to well sorted, quartz sandstone, with fossil wood; shallow marine.|siliciclastic sedimentary rock|||N||17-JAN-23
Lampe Formation|10126|Lampe beds|10127|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Upper Cretaceous||||deposition|Upper Cretaceous||||||||No|41751||||||In Canning Basin area, but younger than Canning Basin? Shown as Late Cretaceous in a 2009 figure? No information on where Eocene age data came from.|Fluvial and probably colluvial poorly sorted sandstone and pebble conglomerate, minor siltstone and claystone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lancefield Conglomerate|38642|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean||||deposition|Archean|2684|5||||||No|23786||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Lancelin Formation|25151|Lancelin beds|10133|||Yes|Formation, beds|Formal|Variation of published name|Described|Coolyena Group|4565|||Late Maastrichtian|||inferred, biostratigraphic correlation|deposition|Santonian|||inferred, biostratigraphic correlation|||120|WA|No|41989||||||See Lancelin Beds for definition.|Glauconitic chalk, marl, and calcareous mudstone.|carbonate sedimentary rock|||N||17-JAN-23
Lancer Member|70736|||||Yes|Member, phase|Formal|Resvd name published|Defined|Browne Formation|2683|||Cryogenian||||deposition|Cryogenian|||||||WA|No|65363|65363|||||Top of Browne Formation.|Generally medium-grained, very well-sorted, well-rounded and porous, cross-bedded quartz sandstone in foresets up to 11 m thick; minor silty beds to 0.6 m thick.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Lander Rock Formation|69780|Lander Rock beds|29263|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Statherian|1799||inferred, intrusive relationship|deposition|Orosirian|1835|6|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|61405||||||Supersedes Lander Rock beds.  Aileron Province, Arunta Orogen, North Australian Craton. Two unnamed sub-units are mapped separately: metamorphosed BIF interbedded with psammitic and pelitic schist; and felsic volcanic metasandstone and metaconglomerate interbedded with amygdaloidal metabasalt. Most outcrops are weathered to saprock: original textures and fabrics are preserved, but mineralogy has been predominantly replaced. Hosts the Anningie field pegmatite Sn deposit and the Mount Doreen field pegmatite W deposit; also hosts the Nolans Bore phosphate-REE-U deposit.|Interlayered pelitic schist and psammite, metagreywacke; gneiss; may include meta-banded iron-formation, metavolcanic rocks, amphibolite sills; greenschist to granulite facies metamorphism.|metasedimentary siliciclastic rock|||N||17-JAN-23
Landor Granite|31958|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Minnie Creek Supersuite|31954|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Included in -Pgbr on Glenburgh 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Landrigan Tillite|27180|||||Yes|Formation, beds|Formal|Other new published name|Defined|Kuniandi Group|25981|||Ediacaran|610|||deposition|Cryogenian||||||210|WA|No|44397|48927|||||In the Louisa Basin.  Age: c.610Ma. See also Landrigan tillite, Landrigan Formation.|Massive tillite with thick lenses of sandstone and siltstone, and capped with purple or cream flaggy laminated dolomite; erratics of sandstone, subarkose, stromatolitic dolomite, granite and dolerite in a purple clayey or sandy matrix|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Langenbeck Suite|68667|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Sisters Supersuite|68741|Mesoarchean|2945||||Mesoarchean|2955|||||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||For SATIRIST mapsheet; near Roebourne.  Age: >2.9Ga.  Intrusive equivalent of Bookingarra Group. Pilbara Craton.|Widespread mafic-ultramafic sills and rocks with boninite-like compositions.  (Smithies 2002). Unusual LREE enriched gabbro.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Langey Shale|27181|Langey Crossing Marl""|10156|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Kimmeridgian||||deposition|Kimmeridgian|||||||WA|No|32648|45153|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Langfield Group|10161|Keep River Group|9373|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Tournaisian|||inferred, biostratigraphic correlation||Tournaisian|||inferred, biostratigraphic correlation|||2000|WA|No|40993|40993|G.M.Beere, A.J.Mory|21-OCT-83|||See also Langfield group. Formerly "Eight Mile Creek Group" then "Keep River Group".  See also the misspelt Langford Group.|Sandstone, limestone, shale and siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Lansdowne Arkose|27460|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Speewah Group|17150|||Orosirian|1834|3|inferred, underlying unit|deposition|Orosirian|1860|6||maximum depositional age|400|450||No|44317||||||Age: c.1835Ma. Detrital zircon maximum deposition age of 1860 Ma.|Pink to red-brown, grey and green medium grained feldspathic sandstone with small scale cross beds, grading to arkose; lesser coarse poorly sorted sandstone and recessive green-red-brown micaceous siltstone, shale and phyllite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Larapinta Group|10184|Larapinta Series|10187|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Upper Ordovician||||deposition|Late Cambrian||||||2100||No|48838|48864|||||Average thickness of the group is 1030m; maximum of 2100m (RefID: 65233).|Marine sediments. White to red sandstone, locally bioturbated; minor siltstone and conglomeratic sandstone.|siliciclastic sedimentary rock|||N||21-MAR-23
Larkinville Granodiorite|79521|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|70153|||||||Granodiorite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Larranganni Formation|73328|Larranganni beds|72579|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Mesozoic|||inferred|deposition|Mesozoic|||inferred|||8|WA|Yes|64277||Bagas, L.|16-MAY-07|Hocking, R.|16-MAY-07|See UNIT DEFINTION.  Based on original description in BMR Report 174. Published on WATTS 1:100K map sheet. Considered Cretaceous in 2014, but more recently only broader Mesozoic age given.|Medium grained and thin to medium bedded quartz sandstone with minor siltstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Larry Formation|22169|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||Paleoproterozoic|1680|29|inferred, intrusive relationship|metamorphism|Paleoproterozoic||||||1000||No|43848||Bagas L., Hickman A.|10-MAR-93|||To be used in the Rudall 1:250 000 sheet area.|Intercalated banded quartz-feldspar-mica gneiss, quartz-mica schist, quartzite, and psammitic gneiss.|high grade metamorphic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Latitude Hill Gabbro|69749|Latitude Hill|30273|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||||||intrusion|||||||||No|61340||||||See also Latitude Hill Pyroxenite.||basic intrusive rock|||Y||17-JAN-23
Latitude Hill Pyroxenite|69750|Latitude Hill|30273|||Yes|Formation, beds|Informal|Resvd name published|Briefly described||||||||||||||||||No|61340||||||Reserved as Latitude Hill. See also Latitude Hill Gabbro.|||||N||17-JAN-23
Latitude Hills intrusion|79621|Latitude Hill Gabbro|69749|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Giles Suite|74611|Mesoproterozoic|||||Mesoproterozoic||||||||No|68996||||||Probably replaces both Latitude Hill Gabbro and Latitude Hills Pyroxentite. Part of G1 group. Along with Michael Hills intrusion, characterised by very strong aeromagnetic anomalies. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|||||Y||17-JAN-23
Lauchie Member|23718|||||Yes|Member, phase|Formal|Resvd name published|Described|Eliassen Formation|75545|||Oxfordian|||inferred, biostratigraphic correlation|deposition|Oxfordian|||inferred, biostratigraphic correlation|||||No|42615||Hocking R.M.|18-JAN-93|||Described in GSWA Record 1992/7, 93/27545.|||||N||17-JAN-23
Laurel Formation|25727|Laurel Beds|27461|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Fairfield Group|6483|||Tournaisian||||deposition|Tournaisian|||||357|1981|WA|Yes|23293|45153|Druce E.C., Radke B.M.||WA SNSC|15-MAY-76|Of Fairfield Group. See also Lexicon. Potential source rock for Sundown oil field,|Shallow marine fossiliferous interbedded limestone, shale, siltstone and sandstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Laverton Sequence|77527|||||Yes|Group, Suite|Informal|Variation of published name|Described|||||Neoarchean|2720||inferred||Mesoarchean|2808|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|66880|||||||Mostly high-Ti tholeiitic basalt, komatiite, komatiitic basalt and banded iron formation; minor quartz-bearing clastic sedimentary rocks including turbidites; intruded by felsic porphyries.|basic volcanic rock|ultramafic intrusive rock||N||17-JAN-23
Lawford Formation|28672|Lawford beds|27182|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Miocene||||deposition|Miocene||||||||No|41751||||||Used by GSWA. See also Lawford beds (used by AGSO in 1995 Paleogeographic Atlas; age = Miocene).|Lacustrine and fluvial calcrete, marl, sandy calcrete, calcareous sandstone, chalcedony, calcareous breccia and calcareous conglomerate; fossil wood and stromatolites in places and partly lateritised|carbonate sedimentary rock|||N||17-JAN-23
Lawlers Tonalite|10253|Lawlers tonalite|10259|||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2652|20|isotopic, Rb/Sr|intrusion|Neoarchean|2666|3|isotopic, U/Pb|||||No|35113|||||||Medium-grained, hornblende-biotite tonalite to medium-grained, mesocratic and granoblastic granodiorite with subordinate biotite-quartz diorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Le Lievre Formation|10274|Le Lievre Beds|28674|||Yes|Formation, beds|Formal|Variation of published name|Described|Oscar Range Group|14667|||Neoproterozoic||||deposition|Mesoproterozoic||||||||No|42710|||||||Red-brown to grey phyllite with minor sandstone interbeds near the base, overlain by massive, thickly bedded, rippled and cross-bedded medium to coarse grained quartzite and quartz sandstone with minor phyllite|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Leake Spring Metamorphics|75111|Morrissey Metamorphics|12358|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Orosirian|1807|3|||Orosirian|1842|5||||||No|65453||Sheppard, S. (GSWA)|06-APR-09|||Used on map sheet SG50-02; nearest town is Gascoyne Junction. Published on several 1:100 000 map sheets from the Gascoyne region, including Pink Hills, Candolle and Yinnetharra (version 2) as well as two GSWA Records. Leake Spring Metamorphics will replace the Morrissey Metamorphics, because all the type areas of the latter unit are now known to belong to other stratigraphic units.|Interlayered psammitic and pelitic schist, pelitic schist, subordinate amounts of psammitic schist and amphibolite, and minor calc-silicate rock, chert, ultramafic schist and metamorphosed BIF; pelitic+ psammitic gneiss is minor component.|metasedimentary siliciclastic rock|metasedimentary non-carbonate chemical or biochemical rock||N||17-JAN-23
Learmonth Formation|10282|Learmonth Beds|10281|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Tithonian|||inferred, biostratigraphic correlation|deposition|Sinemurian|||inferred, biostratigraphic correlation|deposition||674|WA|No|45015||||||See also Lexicon. 42615 indicates the name "has become functionally useless". Obsolete? Probably not: that was 1992; 60384 from 2004 has it still going strong[GO'C 2012]. Type section in Rough Range 1, 1216-1890 m. See GSWA Memoir 3 (1990), p469, 481-484. Shown as Sinemuian - Aalenian in 2013 GA Northern Carnarvon Basin biozonation and Biostratigraphy hart 36.|Non-marine to marine sands. Pale grey, fine micaceous sandstone; common clayey siltstone; minor coal and claystone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Leederville Formation|10291|Leederville Sandstone|10293|||Yes|Formation, beds|Formal|Other new published name|Defined|Warnbro Group|19470|||Aptian|||biozone|deposition|Hauterivian|||inferred, biostratigraphic correlation||600|663|WA|No|30217|36293|||||Includes old Moochamulla Sandstone and Quindalup Beds. As discussed under Leederville Supersequence, Leederville Formation is composed of two separate chronostratigraphic units. These units represent northern and southern deltaic systems prograding into a central depocentre at different pace and therefore filling in the basin at different times. The sandstone previously identified as Leederville Formation in the northern portion of Vlaming Sub-basin that lies within the A. alata Dinocyst Zone has been reclassified as part of  the South Perth Supersequence.|Interbedded, poorly consolidated, fine- to coarse-grained sandstone, siltstone and black, carbonaceous shale, distinctive glauconitic shale, minor conglomerate and lignite seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Leederville Supersequence|80794|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|Warnbro Megasequence|80795|||Aptian|||biozone||Barremian|||biozone|||500||Yes|71958||||||Of the Warnbro Megasequence.|Predominantly fine to very coarse sandstones with glauconite, mica and minor feldspar. Interbedded with pyritic, glauconitic, argillaceous and micaceous mudstones. Highly fossiliferous in places and may contain coal fragments.  Sst increases up section.|siliciclastic sedimentary rock|||N||17-JAN-23
Leeuwin Complex|10296|||||Yes|Supergroup|Formal|Other new published name|Fully described|||||Cambrian|560||isotopic, U/Pb||Mesoproterozoic|655|25|isotopic, Rb/Sr|||||No|43189||||||Intruded at 780Ma, 680Ma, 540Ma. Deformation and metamorphism 620Ma, 550-500 Ma. In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, GSWA appear to have divided this unit into a 'Leeuwin Inlier metagranitic unit' P_E-mgn-PJLE (which is Mesoprot- Cambrian) and 'Leeuwin Inlier metamorphosed mafic intrusive unit'  P_-mof-PJLE (Cryogenian).|Dominated by felsic orthogneiss, ranging from granodiorite to alkali granite in composition, interleaved with anorthosite, leucogabbro and subordinate mafic lenses.|metamorphosed acid igneous rock|||Y||17-JAN-23
Leeuwin Inlier metagranitic rock 83733|83733|Leeuwin Complex|10296|||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Mesoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Leeuwin Inlier metagranitic unit'  P_E-mgn-PJLE. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic, Neoproterozoic and Paleozoic solid geology of Australia.|Granitic gneiss.|foliated metamorphic rock|||N||19-JAN-23
Leeuwin Inlier metamafic intrusive rock 83732|83732|Leeuwin Complex|10296|||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Cryogenian|681|7|isotopic||Cryogenian|688|7|isotopic|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Leeuwin Inlier metamorphosed mafic intrusive unit'  P_-mof-PJLE. Also surface/subsurface unit interpreted by Songfa Liu for the Neoproterozoic solid geology of Australia.|Meta-anorthosite.||||N||19-JAN-23
Lefroy Formation|10298|Lefroy Beds|10297|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buldya Group|33826|||Cryogenian||||deposition|Neoproterozoic||||||||No|41751||||||Age stated to be Cryogenian and  825-800Ma in 2005.|Siltstone, sandstone; quartz arenite and feldspathic arenite; minor conglomerate and shale beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Legendre Formation|10301|Legendre formation|10302|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Callovian|164|||deposition|Lower Jurassic|190||||||WA|No|31604|40617|||||Sometimes informally subdivided into Upper and Lower parts.|Fluvial and marine deltaic sandstones; minor shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Legune Formation|10303|||||Yes|Formation, beds|Formal|Other new published name|Defined|Fitzmaurice Group|6698|||Mesoproterozoic|1150||inferred|deposition|Mesoproterozoic|1250||inferred|||600|NT|No|32310|48938|||||Fitzmaurice Basin. Correlates with Pincombe Formation, WA.|Silica cemented quartz sandstone, siltstone, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Leilira Formation|32219|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Sulphur Springs Group|32237|||Paleoarchean|3255||isotopic, U/Pb-Pb/Pb ion probe|deposition|Paleoarchean|3270|||deposition||3900||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755.  In the Pilbara Craton, within the Pilbara Supergroup. Incorporates the former Six Mile Creek Formation. See also misspelling Leilera Formation. East Pilbara Terrane.|Wacke, local volcaniclastic sandstone, shale, and quartzite, metamorphosed; dacite, includes local minor felsic schist, metamorphosed; rhyolite and felsic volcaniclastic rocks, metamorphosed.|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
Leinster Monzogranite|35642|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23281||||||Name obsolete?||acid intrusive rock|||Y||17-JAN-23
Lennard Granite|10340|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||Paperbark Supersuite|31788|Orosirian|1850|||magmatic crystallisation|Orosirian|1862|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|30525|||||| Age: c.1864Ma. Several similar dates in references.|Foliated coarse porphyritic biotite metamonzogranite, minor metasyenogranite and metagranodiorite, non-porphyritic in places.|acid intrusive rock|||Y||17-JAN-23
Lennis Sandstone|10343|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Cisuralian|||inferred, overlying unit|deposition|Late Cambrian|||inferred, underlying unit|deposition||400|WA|No|32586|45149|||||See also (misspelling) Lennis Formation.  Age is constrained by underlying Late Cambrian Table Hill Volcanics and overlying Early Permian Paterson Formation.|Fine- to medium-grained, feldspathic, micaceous sandstone; minor siltstone; giant cross-beds, possibly eolian.|medium-coarse grained siliciclastic rock|||N||23-MAR-23
Leo Member|39661|||||Yes|Member, phase|Formal|Resvd name published|Defined|Nita Formation|14193|||Darriwilian||||deposition|Darriwilian|||||27|80|WA|No|24449|24449|||||Reserved as Leo by McCracken, S (1994).|Limestones and minor mudstones, commonly heavily dolomitised.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Leopold Downs Dyke Suite|81646|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Neoproterozoic|541||inferred||Paleoproterozoic|2500||inferred|||||No|71267||||||West Kimberly region.|Dolerite; mainly northeast-trending dykes|basic intrusive rock|||Y||17-JAN-23
Lerida Granite|10352|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|44366|||||||Foliated porphyritic biotite granodiorite with green plagioclase and small mafic xenoliths|acid intrusive rock|||Y||17-JAN-23
Leschenault Formation|26273|Leschenault formation|10354|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Holocene||||deposition|Holocene||||||6|WA|No|37480|40367|Semeniuk, V.|21-MAR-79|||Card. Originally reserved 25-DEC-74?  Age: 8280-5490 BP. Now proposed as new component to Kwinana Group by B.Gozzard (approved by R.Hocking but unpublished as yet) 24/1/08.PP.|Grey to dark grey sand (quartz skeletal and quartz) muddy sand and mud; all may contain shells in layers.||||N||17-JAN-23
Lesueur Sandstone|25993|Lesueur Formation|10356|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Upper Triassic|||inferred|deposition|Olenekian|||inferred, biostratigraphic correlation||1100|3000|WA|No|44307|36293|||||Defn on Tech File SH/50-9. See also misspelt Lesuer Sandstone.|Very fine to very coarse grained cross-bedded quartz sandstone; subordinate granule conglomerate; minor siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Lesueur Sequence|79247|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Upper Triassic|||||Lower Triassic||||||||No|70097||||||Offshore Perth Basin. See also Lesueur Sandstone.|||||N||17-JAN-23
Leveque Sandstone|10360|Cape Leveque Sandstone|3508|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Dampier Group|32725|||Aptian||||deposition|Aptian|||||||WA|No|44997|45153|||||See also Lexicon.||siliciclastic sedimentary rock|||N||17-JAN-23
Leviathan Suite|77866|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Neoarchean|||inferred||Neoarchean|||inferred|||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Intrusive mafic sills; Dolerite to gabbro, minor pyroxenite; commonly differentiated; cumulate to granophyric textures; C.2695 to c.2690.; LREE enrichment chondrite normalised). To be published = Geological Surevey of Western Australia East Yilgarn Update 2013-14, digital product.|Intrusive mafic sills; Dolerite to gabbro, minor pyroxenite; commonly differentiated; cumulate to granophyric textures|basic intrusive rock|||Y||17-JAN-23
Leviathan carbonatite|83848|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Proterozoic|||||Proterozoic||||||||No|||||||Invalid name used in same area as Leviathan Suite. Alkaline intrusion and carbonatite postulated at the Leviathan gravity anomaly, but not yet drilled. See: http://www.aspecthuntley.com.au/asxdata/20191127/pdf/02178020.pdf .|Gravity anomaly postulated to be caused by an alkaline intrusion and carbonatite.|exotic composition igneous rock|||Y||12-SEP-23
Lewis Granite|10363|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||Grimwade Suite|40137|Statherian|1684|8|isotopic, Rb/Sr|intrusion|Orosirian|1820||||||WA|No|44998|45140|||||Tanami Province. Defn on Tech File F/52-2. Within the Lamboo Complex. Chemical parent (Frederick Suite) is I-type. Lewis Granite appears to have been moved into Grimwade Suite in 2013 NTGS Publicaiton 5 p11:12.|Muscovite and biotite monzogranite, magnetite-bearing monzogranite, porphyritic in places, with minor pegmatite, aplite and minor biotite granodiorite.|acid intrusive rock|||Y|I-type|09-JUN-23
Lewis Range Sandstone|10365|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Redcliff Pound Group|15983|||Tonian|810||inferred|deposition|Tonian|916|43|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|20|1000|WA|Yes|29817|45140|Blake D.H.|15-MAR-73|||Part of extensive sand blanket including Mount Kinahan Sandstone, Vaughan Springs Quartzite, Heavitree Quartzite and Townsend Quartzite. Previously considered part of Redcliff Pound Group, but see 2017 redefinition. For recent update see: Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35.|Cross bedded and rippled medium to fine grained quartz sandstone with shale pellet layers in places; minor shale, siltstone, limestone and chert with conglomerate and sublithic sandstone near the base.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Liberty Granodiorite|27821|Liberty Granite|23725|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2648|6||intrusion|Neoarchean|2648|6||||||No|41786||||||Age of unit 2593+/-10 Ma. Small tear-shaped post-tectonic Archaean pluton. Hosts the Lady Bountiful gold deposit.|Fine- to coarse-grained; locally monzogranitic; massive. Quartz veins are common. Weathering has produced a thick zone of saprolite comprising white, poorly indurated, matric-supported medium quartz sandy clay.|acid intrusive rock|||Y|I-type|17-JAN-23
Liga Shale|10389|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Crowhurst Group|4951|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44397||||||In the Crowhurst Basin. Age: c.?1500Ma. Crowhurst Group (Mesoproterozoic)|Green shale with minor interbeds of green micaceous siltstone and very fine micaceous silty sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Ligertwood beds|29411|Ligertwood Beds|10390|||Yes|Formation, beds|Informal|Variation of published name|Fully described|||||Permian||||deposition|Carboniferous||||||||No|67856||||||See Ligertwood Beds for bibliographic references containing DEFINITION.|Breccia, conglomerate, conglomeratic sandstone and sandstone; limestone and dolomite clasts and a secondary travertine matrix are common near the base|siliciclastic sedimentary rock|||N||17-JAN-23
Lightfoot Orthogneiss|78514|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Neoarchean|||||Neoarchean||||||||No|68107||||||Protolith: 2738 +/- 3 Ma (Wingate et al. 2011).|Metagranodiorite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Lightjack Formation|25994|Balgo Member|960|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Liveringa Group|25997|||Lopingian|||biozone|deposition|Roadian|269.2|.03|isotopic, U/Pb-Pb/Pb, TIMS|deposition||450|WA|No|33962|64974||||||Fossiliferous, shallow marine micaceous and ferruginous mudstone, siltstone, shale, and thinly bedded fine to coarse quartzose sandstone and ferruginous shale, with concretions near the base.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Lilian Formation|10400|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mission Group|11971|||Stenian||||deposition|Stenian||||||||No|30944||||||Bentley Basin.|Shale; minor sandstone, tuff, basalt, chert, conglomerate, microbalite and dolostone.|sedimentary rock|igneous volcanic rock||N||17-JAN-23
Lillybooroora Conglomerate|10403|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Mississippian||||deposition|Upper Devonian||||||||No|30898|||||||Deltaic to alluvial fan conglomerate with pebbles, cobbles and boulders to 1.2m of quartzite derived from the King Leopold Sandstone, in a ferruginous sandstone matrix; overlain by rarely exposed sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Limbunya Group|10414|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Statherian|1635||isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1640||isotopic, U/Pb-Pb/Pb ion probe||400|1300|NT|No|32699|48943|||||Age originally given as Adelaidean or Carpentarian. Includes the former "Kirkimbie Beds".  Age: 1640-1635Ma (SHRIMP U-Pb, tuffaceous rock, Smith et al 2001), probably from Kunja Siltstone in middle of Group, so age range for whole group may be greater than shown, but overlying Wattie Group has max age Statherian. Birindudu Basin.|Dolostone, siltstone, dolomitic siltstone, dolarenite, quartz arenite, sublitharenite, mudstone, diamictite, tuff.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Limmen Sandstone|10424|Mallison Sandstone|11118|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collara Subgroup|35509|||Calymmian||||deposition|Calymmian|||||15|130|NT|No|44436|23937|||||Previously mapped as Canopy Rock Sst (in URAPUNGA), Mallison Sst and lower Wigram Fm (Malay Road Gp), and part of Baralminar beds.  All these now superseded by Limmen Sst (Roper Gp). Formerly also included rocks now mapped as Mantungula Fm. McArthur Basin.  Occurs in the Beetaloo Sub-basin.|Fine to very coarse sandstone; pebble to boulder conglomerate containing clasts of chert (chertified carbonate), quartzite and siltstone. Minor micaceous siltstone.|medium-coarse grained siliciclastic rock|||N||07-SEP-23
Lindsay Hill Formation|77884|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Calymmian|1600||inferred|deposition|Statherian|1752|19||maximum depositional age||||No|69595||Spaggiari, C. (GSWA)|26-APR-13|||Map Sheet = SH 51-8, Plumridge. Greenschist grade, quartzite and metasandstone with well-preserved sedimentary structures. Minor metaconglomerate. Maximum depositional age is 1752 +/- 19 Ma. Minimum age unconstrained, but inferred to be c. 1600 Ma. To be published: GSWA Report; 2013.|Quartzite and metasandstone, interbedded with metasiltstone; locally interbedded with metaconglomerate and pebbly metasandstone|metasedimentary siliciclastic rock|||N||09-MAY-23
Lindsays Basalt|77859|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coolgardie Subgroup|77855|||Neoarchean||||eruption|Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Basalt; massive to pillowed; tholeiitic composition; minor komatiitic basalt and carbonaceous shale units; metamorphosed. Kalgoorlie Terrane, Eastern Goldfields Superterrane. To be published = Geological Survey of Western Australia East Yilgarn update 2013-14, digital product..|Basalt; massive to pillowed; tholeiitic composition; minor komatiitic basalt and carbonaceous shale units; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Linesman Formation|29290|Linesman Beds|10436|||Yes|Formation, beds|Formal|Variation of published name|Described|Oscar Range Group|14667|||Neoproterozoic||||deposition|Mesoproterozoic||||||||No|42710|||||||Grey-green and purple-grey siltstone and shale, buff feldspathic sandstone and minor boulder conglomerate|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Linnekar Limestone|10441|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Negri Subgroup|27520|||Middle Cambrian|||biozone|deposition|Middle Cambrian|||biozone|||40||No|44965||||||Within the Goose Hole Group.|Stromatolitic and fossiliferous limestone and calcareous shale, local chert.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Lissadell Formation|27823|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Carr Boyd Group|3663|||Stenian||||deposition|Stenian||||||1200||No|44363||||||Age updated by I.Sweet.|Fine- to coarse-grained quartz sandstone; micaceous siltstone and mudstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Little Blow Member|77861|||||Yes|Member, phase|Formal|Resvd name published|Described|Burbanks Formation|3056|||Neoarchean||||deposition|Neoarchean||||||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Porphyritic tholeiitic basalt with rare pillows; feldspar phenocrysts; metamorphosed. Coolgardie Subgroup, Kalgoorlie Terrane, eastern Goldfields Superterrane. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Porphyritic tholeiitic basalt with rare pillows; feldspar phenocrysts; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Little Gap Suite|76057|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||Annean Supersuite|74813|Neoarchean|2792|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2792|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|66195||||||Yilgarn Craton, sills intrude Norie Group, and Muroulli Basalt of the Polelle Group. 500m thick sills of gabbroic rock, may represent subvolcanic component of Muroulli Basalt. 2792+/-5Ma U-Pb crystallisation date from zircons.|Sills of gabbroic rock.|basic intrusive rock|||Y||17-JAN-23
Little Gold River Microgranite|80719|Little Gold River Microgranodiorite|30671|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic|||||Paleoproterozoic||||||||No|71811||||||Probably intended to supersede Little Gold River Microgranodiorite.|Microgranodiorite, micro-quartz diorite, and orthopyroxene-phyric andesite.|acid intrusive rock|||Y||17-JAN-23
Little Peters Formation|79018|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||||||deposition|||||||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Leonora. Nearest Town = Leonora. Briefdescription = consists of felsic volcanic and volcaniclastic rock. It is named after Little Peters Well located NNW of Leonora. Wheretobepublished = GSWA digital release (maps and explanatory notes).|Felsic volcanic and volcaniclastic rock; metamorphosed.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Little River Trondhjemite|73384|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Cleland Supersuite|68665|Paleoarchean|||||Paleoarchean|3290|||||||No|63417|65829|Hickman, A. (GSWA)|29-MAY-07|||Not related to Little River units in Victoria and Qld. For sheet 3055; nearest town Nullagine. Pub: NULLAGINE 1:250K Geol. Series map 3rd.ed.June'07;and in Yilgalong Explan.Notes, June'07 Intrusion of Cleland Supersuite in Yilgalong Granitic Complex. Age: <3290Ma|Quartz-biotite trondhjemite and tonalite; leucocratic, massive, fine- to medium-grained, weakly metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Liveringa Group|25997|Liveringa Formation|10496|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Lopingian|253|5||deposition|Roadian||||||435|WA|No|44657|45153|||||Defined Bulletin B210, 1981. See also Lexicon. Replaced by Liveringa Formation for a while but Group now used again. Includes volcanics dated at 253 +/-5 Ma. Canning Basin.|Sandstone and siltstone, minor conglomerate, and coal.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||23-MAR-23
Lizard Hills Formation|38689|Lizard Hills Formation""|38697|||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||deposition|Archean||||||||No|23789|||||||||||N||17-JAN-23
Lloyd Creek Formation|10524|||||Yes|Formation, beds|Formal|Other new published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Cryogenian||||||162|NT|No|32310|48938||||||Oolitic and microbial dolostone, quartzitic and silty dolostone, sandstone, dolomitic siltstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Loadstone Monzogranite|22208|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Kevins Dam Suite|31898|Orosirian|1825|||intrusion|Orosirian|1827|2|isotopic, U/Pb-Pb/Pb ion probe||||WA|Yes|23601|23621|Sheppard S., Griffin T.J.|08-OCT-94|Hocking, R.|22-APR-99|MOUNT RAMSAY and GORDON DOWNS 1:250 000 sheet area. Kimberley Province.  Intrudes the Koongie Park Formation.  Bow River batholith. Age: 1835-1805Ma. In the Lamboo Complex.|Weakly porphyritic biotite monzogranite and syenogranite and minor microgranodiorite.|acid intrusive rock|||Y||17-JAN-23
Locker Shale|10561|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Anisian|240||inferred|deposition|Olenekian|248.5||inferred|deposition||509|WA|No|44159|34008|||||Ages, lithology updated from GA Timescales Project Feb 2009.|Predominantly marine claystone and siltstone with minor paralic sandstone and shelfal limestone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Lockeridge Shale Member|10562|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37460||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Logue Brook Granite|23735|Logue Brook granite|10584|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||intrusion|Archean|2575||isotopic, Rb/Sr|||||No|38769||S.A.Wilde|07-APR-78||||Microcline-phyric biotite granite|acid intrusive rock|||Y||17-JAN-23
Lombadina Conglomerate Member|74630|||||Yes|Member, phase|Formal|Resvd name published|Defined|Cable Beach Sand|21408|||Holocene||||deposition|Holocene||||||1|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|Pebble to boulder sized; these fragments of beach rock are embedded in laminated sand, bubble sand, and cross-laminated shelly sand and sand, or form a sand-free deposit resting on beachrock pavement; ribbon deposit formed along upper tidal beach face.||||N||17-JAN-23
Lone Hand Monzogranite|26699|Lone Hand Granite|22212|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|42696|||||||Leucocratic monzogranite; massive; contacts discordant with greenstones and foliation in early granite.|acid intrusive rock|||Y||17-JAN-23
Long Hole Granite|10623|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|44366||||||In the western zone of the Hooper Complex and Lamboo Complex (Bow River batholith).  Age: 1865-1850Ma.|Commonly foliated, grey coarse porphyritic biotite granite, with zones of pink-grey biotite gneiss and augen gneiss|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Long Point basaltic dyke|83649|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cambrian|||inferred||Tonian|910|11|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|73480||||||Vertical and N-NW striking dyke. Hosted in sheared ortho- and paragneiss. Name used interchangeably with Long Point dyke.|Porphyritic basalt dyke.|basic volcanic rock|||Y||05-FEB-23
Loongana Formation|10656|Loongana Sandstone|10657|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Hauterivian||||deposition|Valanginian|350|5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||324|WA|No|45149|42545|||||Formerly included in old definition of Eucla Basin. See also variations: including Loongana Conglomerate, Loongana Sandstone, and misspelt Loongara Sandstone.|Cross-bedded feldspathic sandstone, locally conglomeratic, carbonaceous sandstone; glauconitic sandstone, siltstone, claystone and shale; commonly pyritic.|siliciclastic sedimentary rock|||N||17-JAN-23
Lordy Basalt Member|74806|Lordy Basalt|23739|||Yes|Member, phase|Formal|Variation of reserved name|Described|Meekatharra Formation|74805|||Neoarchean||||eruption|Neoarchean|2792|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Age: c.2790Ma. Replaces the original reserved (also published) Lordy Basalt (K.P.Watkins, A.H.Hickman, R.Davy, 1985). Geological province: Murchison Domain.|Mafic volcanic rock, dominantly komatiitic basalt; massive to weakly foliated, locally pillowed or vesicular; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Loreto Aplite|69178|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2687|4||intrusion|Archean|2687|4||||||No|60623|||||||||||N||17-JAN-23
Louden Volcanics|24365|Louden Volcanic Member|70134|||Yes|Formation, beds|Formal|Resvd name published|Redefined|Bookingarra Group|29942|||Mesoarchean|2943|7|inferred, overlying unit|eruption|Mesoarchean|2948||inferred, underlying unit||500|2000|WA|Yes|38498|39697|A.H.Hickman|08-AUG-77|WA SNSC|14-SEP-79|Defined Hickman 1990. Formerly of the Bookingarra Group - now a member of the redefined Bookingarra Formation (Croydon Group, De Grey Supergroup)[2006]. Reinstated and redefined as part of Bookingarra Group in 2016.|Basalt and komatiite, with locally thick siliciclastic sedimentary intercalations; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Louisa Downs Group|10676|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Ediacaran|610|||deposition|Cryogenian|660|||||4000|WA|No|31393|48927|||||Correlated with Mount House Group, and with Duerdin Group and Antrim Plateau Volcanics (Coates and Preiss 1980). Plumb disputes these correlations, preferring to correlate with Albert Edward Group only.|Siltstone, sandstone, quartzwacke, pebble conglomerate, shale, dolomite, stromatolitic dolomite, limestone, and tillite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||29-MAR-23
Louisa Monzogranite|30670|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43281||||||King Leopold Orogen. In the Hooper Complex and Lamboo Complex western zone.  Age: c. 1865-1850Ma. To be updated to Louisa Granite  (advice from GSWA Dec 2013).|Coarsely porphyritic syenogranite and monzogranite|acid intrusive rock|||Y||17-JAN-23
Lowendal Member|35979|Lowendal|22221|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Flacourt Formation|27407|||||||deposition|||||||||No|23379|||||||||||N||17-JAN-23
Lowes Sandstone|35669|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|23142||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Lowlands Beach basaltic dyke|83641|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||Stenian|1190||inferred, intrusive relationship|intrusion||||No|73480||||||Steeply dipping W-NW-trending dyke. Maximum age of ca 1190-1170 Ma constrained from Burnside Batholith quartz monzonite host rock, which is part of the Esperance Supersuite. Dyke is likely associated with either the Marnda Moorn large igneous province or Stage II Albany-Fraser Orogeny.|Microporphyritic ophitic basaltic sheeted dyke, metamorphosed.|basic volcanic rock|||Y||05-FEB-23
Lubbock Formation|10834|||||Yes|Formation, beds|Formal|Other new published name|Defined|Louisa Downs Group|10676|||Ediacaran||||deposition|Ediacaran|610|||||1830|WA|No|44397|48927|||||In the Louisa Basin.|Grey green or purple siltstone and shale interbedded with fine and medium grained quartz wacke.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Lucas Formation|10840|Lucas Beds|10838|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Paleozoic|||inferred|deposition|Devonian|410||inferred|||1000|WA|Yes|29809|45140|Blake D.H.|30-OCT-06|||Replaces Lucas Beds and Lucas beds.|Purplish to grey, medium- to fine-grained friable calcareous sandstone; medium- to coarse-grained non-calcareous sandstone (lithic to sublithic arenite); thin-bedded to laminated siltstone and mudstone; local thin limestone beds and sandy dolomite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Luluigui Formation|28700|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian||||deposition|Famennian||||||571|WA|No|30110|45153|||||Basal marine shales are oil prone.|Interbedded siltstone, shale, limestone, fine sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Lulworth beds|10861|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40356|||||||||||N||17-JAN-23
Luman Siltstone|10863|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Speewah Group|17150|||Orosirian||||deposition|Paleoproterozoic|1835|||||75||No|44317||||||Age: c.1835Ma.|Recessive rippled red-brown to grey-green micaceous siltstone and phyllite interbedded with fine feldspathic sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Lungkarta Formation|35680|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ediacaran||||deposition|Ediacaran|600|||||||No|64325||Grey K.|18-DEC-00|||Yowalga 1:250 000 sheet area. Age late Neoproterozoic (although ages of 540 Ma and under make it Cambrian).|Sandstone, siltstone, mudstone, evaporites, conglomerate.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Luni carbonatite|84030|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Suspected carbonatite associated with a regionally-significant gravity high. Mineralised carbonatite unit has been intersected in Feb 2023 drilling, with highly elevated niobium, TREO, tantalum and phosphorus mineralisation.|Mineralised carbonatite.||||Y||14-SEP-23
Lunnon Basalt|10869|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Hannans Subgroup|77860|||Neoarchean|2709|4|inferred, overlying unit|eruption|Neoarchean|2726|30|isotopic, Sm/Nd||2000|5000||No|41368||||||Unit thickness is greater than 1750m.|Basalt; massive, pillowed and breccia lithofacies, and can be subdivided into lower Mg-rich and upper Mg-poor components, which are separated by a thin mudstone.|basic volcanic rock|||N||16-AUG-23
Lupton Formation|10871|Lupton Beds|10870|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Ediacaran|545|||deposition|Ediacaran|610|||||250||No|41751|||||||Massive pebble to boulder conglomerate (tillite) and medium- to thick-bedded sandstone; minor siltstone; diamictite.|siliciclastic sedimentary rock|||N||17-JAN-23
Lyally Conglomerate|41591|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Early Cambrian||||deposition|Early Cambrian||||||||No|22496|||||||||||N||17-JAN-23
Lyndon River Granite|31964|Lyndon River granite|30630|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Minnie Creek Supersuite|31954|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I., Bastrakova I.|25-NOV-97|||Used for Proterozoic granites project. Gascoyne Province. Shown as -Pgbm, -Pgbr, & part of -Pgbt, -Pgmt, -Pgbl on the Winning Pool-Minilya 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Lyons Basalt|38795|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|23926||||||||basic volcanic rock|||N||17-JAN-23
Lyons Dolerite|38796|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|23926||||||||basic intrusive rock|||Y||17-JAN-23
Lyons Group|28702|Lyons Formation|10896|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Sakmarian||||deposition|Pennsylvanian|320|||deposition|1000|3000|WA|No|44537|45016|||||Also replaced Lyons Conglomerate. See also Lexicon. Replaced by Lyons Formation, but name restored in 1987.|Diamictite, sandstone and siltstone (locally calcareous), shale, and boulder beds and lags; glacigene.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||22-FEB-23
Lyre Creek Member|36837|Lyre Creek Agglomerate Member|10903|||Yes|Member, phase|Formal|Variation of published name|Fully described|Hardey Formation|8075|||Neoarchean||||eruption|Neoarchean|2760||inferred, geological correlation|||1000||No|23598|||||||Felsic tuff and agglomerate, and felsic to intermediate volcaniclastic sandstone and conglomerate.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
M. australis Member|75711|M. australis Sandstone|34608|||Yes|Member, phase|Reserved|Reserved|Fully described|Muderong Shale|13315|||Barremian||||deposition|Barremian||||||||No|70066||Nicoll et al (Geoscience Australia)|28-MAY-10|||Briefly described as part of 2010 Acreage Release in: Nicoll R.S, G. Bernadel, T. Hashimoto, A.T. Jones, A.P. Kelman, J.M. Kennard, S. le Poidevin, D.J. Mantle, N. Rollet and P.R. Temple (2010) Northern Carnarvon Basin, Biozonation and Biostratigraphy, 2010, Chart 36. On CD: Basin Biozonation and Stratigraphy Charts, 2010. Geoscience Australia.|||||N||17-JAN-23
M. australis Sandstone|34608|||||Yes|Member, phase|Informal|Other new published name|Fully described|Muderong Shale|13315|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|64973||||||Invalid, should be given a proper name. Used 2005.	|Typically very fine to fine-grained, moderately to well-sorted glauconitic sandstone grading to greensand.|siliciclastic sedimentary rock|||N||17-JAN-23
M3 Formation|10906|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|42677|||||||||||N||17-JAN-23
Mabel Downs Suite|30660|Mabel Downs Granitoid Suite|10915|||Yes|Group, Suite|Formal|STRATLEX Entry|Described|||Sally Downs Supersuite|31785|Orosirian|||||Orosirian|1820|||||||No|50437||||||Kimberley Province. See also Mabel Downs suite.|Variably foliated, medium-grained, even-textured to porphyritic biotite-hornblende tonalite and quartz-diorite; some edenitic hornblende crystals have orthopyroxene cores; abundant mafic enclaves.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Mabel Downs Tonalite|31784|Mabel Downs Granodiorite|10916|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Mabel Downs Suite|30660|Orosirian|1829|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1832|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|65413||||||East Kimberley. Sally Downs Supersuite. 1832 +/- 3 Ma. West of Halls Creek Fault. Locally strongly deformed, but little evidence of hydrothermal activity; contrasts with coeval McHale Granodiorite.|Medium- to fine-grained, foliated, hornblende biotite tonalite with abundant flattened mafic inclusions.|acid intrusive rock|||Y||17-JAN-23
MacDougall Formation|10920|Macdougall Formation|26713|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kunmarnara Group|74752|||Stenian|1076|7|inferred, overlying unit|deposition|Stenian|1177|4|inferred|||||No|30390||||||Probably intended to be superseded by MacDougall Bluff Formation, but this name continues to be used in WA. Note: correct place name spelling (and capitalization) is Macdougall [Bluff], but intention for geological unit is not easy to tell from maps. Said by GSWA to be of Bentley Basin. Contains detrital zircons aged 1172 +/- 8 Ma, giving the maximum age for this unit and the Kunmarnara Group. Previously of Tollu Group.|Metaconglomerate, metasandstone, quartzite, phyllite, psammitic gneiss, amphibolite, metamorphosed arkose, interlayered quartzite and schist, muscovite granofels.|metasedimentary siliciclastic rock|||N||17-JAN-23
MacLeod Member|10925|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Marra Mamba Iron Formation|11353|||Neoarchean|2598||inferred, lithostratigraphic correlation|deposition|Neoarchean|2627||inferred, lithostratigraphic correlation|||45||No|42112||||||Ages from Trendall et al (2004), RefID 60706.|Shale with thin BIF interbeds; chert.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
MacPhersons Tonalite|77863|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|||inferred||Neoarchean|2699|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Plagioclase biotite tonalite; biotite schlieren; massive to foliated; metamorphosed. SHRIMP U-Pb zircon preliminary age of 2699+/- 6 Ma (GSWA 182299). Intrudes Lindsays Basalt, Coolgardie Subgroup. Kalgoorlie Terrane, eastern Goldfields Superterrane. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Plagioclase biotite tonalite; biotite schlieren; massive to foliated; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Macedon Sandstone|40311|Macedon Member|39301|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Barrow Group|1209|||Lower Cretaceous||||deposition|Tithonian||||||||No|24390||||||See also Macedon Member. More recent uses of this unit name include it in the Barrow Group and show it as Early Cretaceous.||siliciclastic sedimentary rock|||N||27-JUL-23
Machells Pyramid Lamproite|10938|Machells Pyramid lamproite|10939|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mad Gap Monzogranite|22234|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1850|||||||No|72437||Sheppard S., Tyler I.M., Griffin T.J.|18-NOV-94|||East Kimberley region|Monzogranite, hornblende-biotite granodiorite.|acid intrusive rock|||Y||01-MAY-23
Mad Gap Yards lamprophyre|83890|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoproterozoic|||inferred||Neoproterozoic|842|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|||M. Buddee|12-APR-23|||Of Downes et al. 2023. To be used in GA alkaline rocks data compilation and other products.|Alkaline ultramafic lamprophyre dykes in the East Kimberly region|exotic composition igneous rock|||Y||25-MAY-23
Madabarena|37708|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Smithies, H.|14-NOV-02||||||||N||17-JAN-23
Maddina Formation|35002|Maddina Basalt|10972|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2715|2|isotopic, U/Pb|eruption|Neoarchean|2717|2|isotopic, U/Pb-Pb/Pb ion probe|eruption||1100||No|23575||||||An important horizon marker.  Also supersedes Nymerina Basalt (Hickman et al, 1983) - according to stratigraphic correlation chart for the Fortescue Group, YARRIE. Age: 2717 +/- 2Ma (dacite). Includes upper part of the now abandoned Little de Grey Lava. Consists of two volcanic cycles and may need to be divided again in the future (2004 Cooya Pooya Explan Notes p19. RefID 69299).  Min age from Trendall et al (2004), RefID 60706. Oakover Basin.|Massive, amygdaloidal, or vesicular basalt and basaltic andesite; local komatiitic basalt, dacite, and rhyolite|basic volcanic rock|acid volcanic rock||N||09-MAY-23
Maddox Formation|26004|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Glidden Group|25926|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|44397|48927|||||In the Glidden Basin.|Black shale, black laminated micaceous siltstone, purple and grey flaggy fine slightly micaceous feldspathic sandstone, and purple siltstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Madeline Formation|10979|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Byro Group|3230|||Artinskian||||deposition|Artinskian||||||152|WA|No|44040|45016|||||See also Lexicon. Of the Newman Sub-Group (Byro Group).||fine grained siliciclastic rock|||N||17-JAN-23
Madoonga Formation|78981|Madoonga beds|10986|||Yes|Formation, beds|Formal|Variation of published name|Described|Murchison Supergroup|13501|||Mesoarchean|2969||inferred|deposition|Mesoarchean|2979||inferred||||WA|No|69583||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Madoonga, Kalli, Noondie 1:100k map sheets. Type area northern Weld Range, 26deg 56'S 117deg36'E.  Named after Madoonga Hst. Underlying Polelle Group banded iron formations of the Weld Range area.|Rhyolitic volcanic and volcaniclastic rocks with lesser psammite and pelite and minor komatiitic basalt; metamorphosed.|acid volcanic rock|metamorphosed acid igneous rock||N||02-JUN-23
Madoonga beds|10986|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40356||||||To be replaced by Madoonga Formation in 2015.|||||N||17-JAN-23
Madura Formation|10987|Madura Shale|10990|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Albian|||inferred, biostratigraphic correlation|deposition|Valanginian|||inferred, biostratigraphic correlation|deposition||474|WA|No|34192|45149|||||Formerly included in old definition of Eucla Basin. See also Madura Shale. Base is time transgressive. Barremian or older onshore; latest Barremian offshore. Age from sparse flora & fauna. Maximum depositional age 1174+/-9 Ma from SHRIMP dating of detrital zircons Jagodzinski (2019) PACE Copper Coompana drilling. RB 2018/00028.|Carbonaceous or glauconitic sandstone, siltstone, and claystone and shale; commonly pyritic.|siliciclastic sedimentary rock|||N||17-JAN-23
Madura Province metagranitic rocks 83759|83759|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1100||inferred||Mesoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Madura Province metagranitic unit', P_-xmg-mw-MAD. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Metagranitic and metamorphosed mafic rocks, undivided; may include metasedimentary rocks|metamorphosed igneous rock|||Y||30-JAN-23
Maggie Hays Formation|26006|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Archean||||deposition|Archean||||||2400|WA|No|30969|31093|||||Part of the Lake Johnston Greenstone Belt. Southern Cross Domain, Youanmi Terrane, Yilgarn Craton.|Amphibollite after tholeiitic basalt, with  preserved pillows, metamorphosed mafic/ultramafic intrusives, and minor metasediments: BIFs and volcanogenic rocks.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
Magotty Springs Monzogranite|30828|Maggotty Springs|22239|||Yes|Formation, beds|Formal|Resvd name published|Described|||Kevins Dam Suite|31898|Orosirian|1805|||intrusion|Orosirian|1835|||||||No|43853||Sheppard S., Tyler I.|23-FEB-95|||Reserved as Maggotty Springs. East Kimberley region. Turkey Creek, Bow 1:100 000 sheet areas. See also Maggoty Springs Granite. Age updated by I.Sweet.|Medium- to coarse-grained, porphyritic biotite monzogranite; medium-grained hornblende-biotite granodiorite.|acid intrusive rock|||Y||17-JAN-23
Mahony Group|23749|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Frasnian|||||Frasnian||||||1000||No|41840||Trendall, A.F.|12-APR-83||||Quartz sandstone, pebbly sandstone and pebble to boulder conglomerate.|siliciclastic sedimentary rock|||N||21-MAR-23
Mainoru Formation|11034|||||Yes|Formation, beds|Formal|Other new published name|Defined|Collara Subgroup|35509|||Calymmian|1492|4|isotopic, U/Pb-Pb/Pb ion probe|deposition|Calymmian||||deposition|270|1000|NT|No|44436|23937|||||Defined 1965.  Now [2001] includes Gibb and Wandjeli Sandstone Members, previously mapped as upper part of the Limmen Sandstone.  Occurs in the Beetaloo Sub-basin. Ages are said to be from tuffs in the Showell Member (Munson, 2016), which is at the top of the Mainoru Formation (although note that these ages have previously been described as from samples from 'the lower part of the Mainoru Formation (Jackson et al., 1999), and shown in Abbott & Sweet, 2000, and  Abbott et al 2001, as from the Wooden Duck Member.|Green, purple and grey, laminated siltstone and mudstone, light grey calcareous siltstone; medium to coarse, thick-bedded sandstone interbeds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mairmull Formation|75074|Mount Goodwin Formation, Lower|74057|||Yes|Formation, beds|Formal|Resvd name published|Defined|Mount Goodwin Subgroup|75073|||Induan||||deposition|Induan|||||||WA|No|67370||Gorter, J.D. (Eni Australia), Nicoll, R.S. (GA)|19-MAR-09|||Intended to supersede the Lower Mount Goodwin Formation of Gorter (1998). Of Mount Goodwin Subgroup (Gorter, Nicoll, et al. in prep. Mar2009).|Claystone and siltstone with rare thin sandstone interbeds, which are more common towards the top.|siliciclastic sedimentary rock|||N||17-JAN-23
Maitland Intrusion|39911|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Radley Suite|68740|Archean||||intrusion|Archean|2930|||||||No|24353||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Intrudes Whundo Group. Age: >2930Ma. Part of the Sisters Supersuite.|Mafic rocks. Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite, and minor anorthosite; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Maitland River Supersuite|68668|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Mesoarchean|2980|||intrusion|Mesoarchean|3000|||||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||For Dampier mapsheet; nearest town is Dampier.  Not related to the former Maitland Complex.  Named for the Maitland River. Age: <3.0Ga.  In the West Pilbara Superterrane/Pilbara Craton. Contains 10 named granites.|Tonalite, granodiorite, and monzogranite; K-feldspar phenocrysts in most intrusions; variably foliated; metamorphosed|acid intrusive rock|||Y||09-MAY-23
Malcolm Metamorphics|79541|Malcolm Gneiss|30535|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoproterozoic|1310||||Mesoproterozoic|1600|||||||No|68186||||||Apparently replaces Malcolm Gneiss (unit no. 30535).|Interbedded psammitic and pelitic schist; basalt schist locally altered to calcareous rock; intruded by Recherche Supersuite|metasedimentary rock|||N||09-MAY-23
Malgabbie Formation|11092|||||Yes|Formation, beds|Formal|Other new published name|Described|||||||||deposition|||||||||No|41594|||||||||||N||17-JAN-23
Malita Formation|23751|Malita formation|11093|||Yes|Formation, beds|Formal|Variation of published name|Defined|Troughton Group|18608|||Norian||||deposition|Norian|||||||NT|No|40077|42442|J.C.Wise|28-FEB-75|||M 85/24985 NT, also WA. Connection initially missed, reservation allowed to expire Jan 1981.|Fluviodeltaic siliciclastics: red sandstone and shale; minor limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mallens Sandstone|11115|Mallens Greywacke|11113|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Byro Group|3230|||Cisuralian||||deposition|Cisuralian|||||60|200||No|37294||||||See also Mallens Formation. Type section located in Northern Kennedy Range, 24d05mS; 115d07mE.|Quartz wacke, minor quartz arenite, bioturbated, cross-bedded; minor siltstone; characteristically intensely bioturbated.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Malley Spring Member|23752|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Antrim Plateau Volcanics|488|||Early Cambrian||||deposition|Early Cambrian||||||||No|41840||Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins.|Sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mallina Formation|29271|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Croydon Group|4964|||Mesoarchean|2931||inferred|deposition|Mesoarchean|3015||inferred|||10000|WA|Yes|30766|30766|Fitton, M.J., Horwitz R.C., Sylvester G.|23-JUN-75|WA SNSC|01-APR-76|Formerly listed as part of Gorge Creek Group. Then became part of the De Grey Group. Now of the Croydon Group, De Grey Supergroup. Age: 3000 Ma. In the Mallina Basin/Pilbara Craton. Intruded by granites of Portree Suite.|Interbedded metamorphosed shale, siltstone, sandstone, and medium to fine grained wacke; minor layers of chert; may contain gabbroic intrusions.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Mallindra Well Granodiorite|38040|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Indee Suite|40281|Mesoarchean|2946|3||intrusion|Mesoarchean|2955|||||||No|24327||||||Within the Sisters Supersuite. Possibly misspelt - name reserved as Malindra Well Granodiorite. Part of the Pippingarra Granitoid Complex.|Hornblende-biotite granodiorite; grades to tonalite; massive to moderately foliated; locally inclusion-rich; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Mallowa Salt|23753|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carribuddy Group|3686|||Llandovery|||inferred, biostratigraphic correlation||Upper Ordovician||||||695|WA|No|40837|40837|P.Lehmann|20-JAN-84|||Acts as seal for Nita Formation hydrocarbon reservoir.|Beds of halite interbedded with red, green, grey and black organic-rich mudstone; with lesser anhydrite and dolomite. It is notably cyclic.|non-carbonate chemical or biochemical sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Malmac Granite|74715|Malmac|35785|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Archean|2550||isotopic, U/Pb-Pb/Pb ion probe|||||No|64655||Hocking R., Pirajno F.|20-MAR-01|||For a granite in central WA - used to be the Malmac Dome. originally reserved as just Malmac (Hocking R., Pirajno F., 2001).|Weathered monzogranite.|acid intrusive rock|||Y||17-JAN-23
Maloneys Dam Metagranite|78531|||||Yes|Formation, beds|Reserved|Reserved|Briefly described|||||||||intrusion|||||||||No|70153||Hall, C. (GSWA)|05-NOV-13|||Yilmia 1:100k map sheet area. Biotite-bearing metagranite. To be published = East Yilgarn 2013-2013 Update, Geological Survey of Western Australia digital product.|Biotite-bearing metagranite.|acid intrusive rock|||Y||17-JAN-23
Malouet Formation|11129|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Barrow Group|1209|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|37685||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Malu Formation|11133|Malu Quartzite|23754|||Yes|Formation, beds|Formal|Other new published name|Fully described|Lamil Group|34421|||Cryogenian||||deposition|Neoproterozoic|||||1000|2000||No|41066||||||Isdell formation underlying (EG, HG 2007). Hosts Telfer gold mineralisation.|Sandstone; minor conglomerate, siltstone, and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Mamilu Hill Lamproite|28717|Mamilu Hill lamproite|11138|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mandorah Shale|23759|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Uaroo Group|24053|||Proterozoic||||deposition|Proterozoic|||||||WA|No|37016|39427|J.Baxter|04-NOV-75||||Shale and chert.|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Mandu Limestone|11165|Mandu Calcarenite|11162|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cape Range Group|3521|||Early Miocene||||deposition|Rupelian|33|||||780||No|44959||||||See also Mandu Formation, Mandu Calcarenite, Lexicon.  Age: <33Ma.|White, mostly foraminiferal calcarenite to marl; low energy shallow marine.|carbonate sedimentary rock|||N||17-JAN-23
Mandy Calcarenite|25200|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|35282|||||||||||N||17-JAN-23
Manfred Complex|23761|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Narryer Gneiss Complex|13916|||Eoarchean|3730|6|isotopic, U/Pb-Pb/Pb ion probe||Eoarchean|3730|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|40101||I.R.Williams, J.S.Myers|17-NOV-83||||Heterogeneously deformed and metamorphosed layered anorthosite, leucogabbro, gabbro, melanogabbro, ultramafic rocks.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Manganese Group|11171|||||Yes|Group, Suite|Formal|Other new published name|Fully described|Bangemall Supergroup|34951|||Mesoproterozoic|1050||isotopic, K/Ar|minimum depositional age|Mesoproterozoic|1317|11|isotopic, U/Pb-Pb/Pb ion probe|deposition||||No|44297||||||Superseded by the Manganese Subgroup (Muhling and Brakel, 1985). Fully described 1989, Balfour Downs. Group status retained in 2007 NULLAGINE (WA) 1:250K map sheet.  In the Collier Basin. Parts intruded by Davis Dolerite. Min age from K-Ar on glauconite in Coondoon Formation said to represent intrusion by Davis Dolerite. Max age from a tuffaceous unit near the base of the Manganese Group.|Sandstone, siltstone, mudstone, conglomerate, chert, dolostone; shallow marine/lagoonal origin.|sedimentary rock|||N||17-JAN-23
Mangles Member|31474|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Carnac Formation|40564|||Lower Cretaceous||||deposition|Lower Cretaceous||||||1000||No|50108||J.Backhouse|28-JUL-97|||In the Perth Basin.|Shale and siltstone with a few thin, probably lensoid, sandstone beds.|siliciclastic sedimentary rock|||N||17-JAN-23
Mantamaru Troctolite|80359|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Howard, H.M. (GSWA)|18-DEC-17|||This is a troctolite unit that outcrops through the main layered intrusions of the Bell Rock, Blackstone and Jamieson Ranges and these together form the Mantamaru intrusion. Mantamaru is the aboriginal name for Jamieson Community. Part of the revised Giles Suite (Giles Suite 1)|||||Y||17-JAN-23
Manyutup Tonalite|36848|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Ravensthorpe Suite|78594|Mesoarchean||||intrusion|Mesoarchean|2966|12|isotopic, U/Pb-Pb/Pb ion probe|||||No|23753||||||Reserved as Manyutup by Witt (1994). See also Manutup Tonalite Complex. NB: Ravensthorpe Terrane nomenclature was abandoned (Refid 65487, 2009)|Dominated by coarse-grained equigranular biotite-hornblende tonalite, varies to include dioritic and granodioritic compositions; minor phases include quartz-diorite, microtonalite, hornblendite, anorthositic gabbro.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Manyutup Tonalite - dolerite phase|74432|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Manyutup Tonalite|36848|||Archean||||intrusion|Archean||||||||No||||||||Metamorphosed dolerite|basic intrusive rock|||Y||17-JAN-23
Maori Queen Tonalite|39346|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean|2703|5|isotopic, Pb/Pb|intrusion|Archean|2703|5|isotopic, Pb/Pb|||||No|24091||||||See also Maori Queen granitoids.||acid intrusive rock|||Y|I-type|17-JAN-23
Mapa Igneous Complex|75533|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2755|5|isotopic, U/Pb-Pb/Pb ion probe||Neoarchean|2755|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|66195||Pawley, M. (GSWA)|01-OCT-09|||The Mapa Igneous Complex is a layered gabbro intrusion in the northeast corner of the Yilgarn Craton. The Mapa Igneous Complex concordantly intrudes the northern part of the Mount Venn greenstone belt, and has been dated at 2755  +/-5 Ma (GSWA SHRIMP age). The name is derived from the Ngaanyatjarra name for Mount Cumming.|Comprises several units: schist, amphibolite, schistose metapyroxenite, metadolerite, metagabbro, metamorphosed pyroxene-rich cumulate rock.|metamorphosed basic igneous rock|||Y||17-JAN-23
Maraloou Formation|27828|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Mooloogool Group|22371|||Paleoproterozoic|1843|14|isotopic, U/Pb|deposition|Paleoproterozoic|2170||inferred, underlying unit|maximum depositional age||1000|WA|No|30010|65419|||||See Bunting et al. (1977) for original definition. Wet sediment intruded by dolerite sill at 1843 +/- 10 Ma, which indicates this age close to time of deposition|Siltstone, ferruginous shale, in part calcareous; basal intercalated tholeiitic basalt pillow lava, dolerite sills. Argillaceous dolomitic limestone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Mararoa Pillow Lava Member|11241|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Woolyeenyer Formation|20591|||Archean||||intrusion|Archean||||||||No|30562||||||See also Mararoa Basalt Member, Mararoa Pillow Lava.|||||N||17-JAN-23
Marble Bar Chert Member|28204|Marble Bar Chert|11244|||Yes|Member, phase|Formal|Variation of published name|Redefined|Duffer Formation|5770|||Paleoarchean||||deposition|Paleoarchean|3460|||||100|WA|No|31309|31309|||||Defined 1977.  In the eastern part of Pilbara Craton. Within the Coongan Subgroup, Warrawoona Group, Pilbara Supergroup. Now redefined as top part of the Duffer Formation (Coongan Subgroup, Warrawoona Group, Pilbara Supergroup) - GSWA Record 2006/15 Van Kran|Millimetre- to centimetre-thick layers of  red, white and black cherts; locally includes fine-grained, clastic sedimentary rock; metamorphosed.|metasedimentary non-carbonate chemical or biochemical rock|metasedimentary siliciclastic rock||N||17-JAN-23
Marboo Formation|23763|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Hooper Complex|8469|||Orosirian|1865|||deposition|Orosirian|1872|9|isotopic|||700||No|42815||Griffin T.J., Tyler I.M.|24-AUG-89|||Formerly shown as part of Canning Basin. Dated c. 1870 Ma. Forms part of the Mount Joseph Migmatite. Intruded by Lennard Granite. Age: c.1870Ma. In the Western Zone of Lamboo Complex.|Turbiditic metasandstone and quartz-plagioclase-muscovite-biotite phyllite; quartz-muscovite-biotite(-cordierite) and cordierite-andalusite-biotite-muscovite-quartz hornfels; minor quartzite.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||21-SEP-23
Marboo Formation - gneiss|74433|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Marboo Formation|23763|||Orosirian||||deposition|Orosirian||||||||No||||||||Migmatitic sillimanite-cordierite-K-feldspar-plagioclase granofels and gneiss|metasedimentary rock|high grade metamorphic rock||N||17-JAN-23
Marcenie Sandstone|11258|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|36551||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Marcia Bore gneiss|33915|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean|||||Archean|3115|||||||No|22449||||||Pilbara region.|||||N||17-JAN-23
Marda Complex|11264|Marda complex|11267|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Neoarchean|2635|80|isotopic, Rb/Sr||Neoarchean|2730|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|29784||||||See also Marda Calc-Alkaline Complex and Marda Formation. Intruded by Butcher Bird Monzogranite.|Felsic volcanic and volcaniclastic rocks; metamorphosed.|metamorphosed acid igneous rock|||N||17-JAN-23
Mardeburra Granodiorite|68513|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean||||intrusion|Archean|3006|12||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Also, for COOYA POOYA map sheet; nearest town Roebourne. Cryst.age: 3006+/-12Ma. Forms most easterly part of Cherratta Granitic Complex.|Porphyritic biotite granodiorite intruded by veins of leucocratic granite; compositional banding is interpreted to indicate inclusion of older, more mafic material.|acid intrusive rock|||Y||17-JAN-23
Mardie Greensand Member|11278|||||Yes|Member, phase|Formal|Variation of published name|Defined|Muderong Shale|13315|||Hauterivian||||deposition|Valanginian|||||15|40|WA|No|33450|34840|||||Basal unit of Muderong Shale. Lithology description copied from Mardie Greensand.|Dark-green to green grey glauconitic, heavily bioturbated siltstone to fine-grained sandstone with interbedded siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Marell Schist Member|11289|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean|||||Archean||||||||No|30562||||||||metamorphic rock|||N||17-JAN-23
Maria Mine Formation|77946|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount White Group|78383|||Neoarchean|2662||inferred|deposition|Neoarchean|2692||inferred|deposition||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Maria mineral deposit/open cut mine. Map Sheet: SG51-13, Sir Samuel 3042. Conglomerate, sandstone, siltstone, shale and chert. Granitic and mafic clasts in conglomerate. Metamorphosed unit. To be published = GSWA geological map and explanatory notes, 2013/2014. See also unrelated Permian 'Maria Formation' in QLD.|Sedimentary rock, undivided; includes sandstone, conglomerate, siltstone, shale, and chert; common granitic and mafic clasts, metamorphosed; locally deeply weathered.|medium-coarse grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Mariginiup Member|22264|||||Yes|Member, phase|Formal|Resvd name published|Defined|Leederville Formation|10291|||Barremian||||deposition|Valanginian|||||15|250|WA|No|12759|12759|Davidson W.A.|18-MAY-88|||Onshore Perth Basin unit. Notified by A.Davidson 28-NOV-94.|Thinly interbedded and discontinuous grey to black siltstones and shales, minor very thin beds of mostly fine-grained sandstone; predominantly marine; commonly glauconitic, micaceous, locally fossiliferous; variably pyritic or calcareous cemented.|siliciclastic sedimentary rock|||N||17-JAN-23
Marillana Formation|37720|Marillana pisolite|34561|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Early Miocene||||deposition|Late Eocene|||||120||WA|Yes|24573||Kneeshaw, M.|20-NOV-02|Hocking, R.|09-DEC-02|Includes the Munjina, Barumunya and Iowa Eastern Members. May be equivalent to Robe Pisolite.|Conglomerate, silt, clay, channel iron deposits, intraformational breccia.|regolith|||N||17-JAN-23
Marker Chert|79025|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Kangaroo Caves Formation|32223|||Archean||||deposition|Archean||||||||No|65757||||||No name reservation or definition has been received (2015). Invalid name.|Chert.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Marla Group|28212|Marla Sequence""|35700|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Middle Cambrian||||deposition|Early Cambrian|||||900|1500|SA|No|38329|38329|||||Sedimentation terminated by Delamarian Orogeny ~507 Ma.|Sandstone; limestone; evaporites.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Marlinleigh Sandstone|11336|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||||||deposition|||||||||No|41271||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Marlomumbah Granite|74955|Wogala Monzogranite|74840|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Wogala Suite|74839|Neoarchean||||magmatic crystallisation|Neoarchean|2606|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Ivanic, T., Van Kranendonk, M. (GSWA)|16-JAN-09|||Geological province: Murchison Domain.  Age: c.2625Ma. Part of the Bald Rock Supersuite.|Muscovite-bearing alkali granite; equiganular; contains accessory fluorite; post-tectonic.|acid intrusive rock|||Y||17-JAN-23
Marnda Moorn Suite|80594|Marnda Moorn Supersuite|75377|||Yes|Group, Suite|Reserved|Variation of published name|Briefly described|||||Mesoproterozoic|1202||inferred||Mesoproterozoic|1218||inferred|||||No|72389||Wingate, M.T.D. (GSWA)|03-JUL-18|||This igneous suite comprises intermediate to mafic intrusive rocks (mainly dykes) which extend across much of the Yilgarn Craton and are concentrated around the SE, S, W, and NW margins. Components include the Fraser, Gnowangerup (Ravensthorpe), Boyagin, Muggamurra, and Wheatbelt dyke swarms; these will also be defined as dolerite units. The age of the suite is c. 1200-1215 Ma, based on ion microprobe U-Pb geochronology. Current research is aimed at testing whether the supersuite extends into the Musgrave Province. Tobepublished = These rocks have previously been included in the Marnda Moorn Large Igneous Province (Wingate et al., 2005; Wingate and Pidgeon, 2005), but not formally defined as an igneous unit. The new suite will be described in a paper currently in prep., intended to be published in 2010, but still not published in 2018. See also GSWA ENS: Wingate, MTD (partial report), Marnda Moorn Suite (P_-MM-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro dykes.|basic intrusive rock|||Y||17-JAN-23
Marra Mamba Iron Formation|11353|Lewin Shale|25164|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hamersley Group|8005|||Neoarchean|2596||inferred, lithostratigraphic correlation|deposition|Neoarchean|2629||inferred, underlying unit|||230|WA|No|44729|33544|||||Defined 1970. See also Marra Mamba Banded Iron Formation. Basal unit in Hamersley Group. Ages from Trendall et al (2004), RefID 60706.|Chert, ferruginous chert, jaspilite, banded iron-formation, minor shale, siltstone, mudstone.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||27-JUN-23
Marradong Formation|26017|||||Yes|Formation, beds|Formal|Other new published name|Defined|Saddleback Group|16497|||Archean||||deposition|Archean|||||||WA|No|33800|33800||||||Metabasalt with apparently only minor intercalations of dark metasediment and rare metadacite.|metamorphosed basic igneous rock|metasedimentary rock||N||17-JAN-23
Marron Member|67831|||||Yes|Member, phase|Formal|Other new published name|Described|Ajana Formation|31387|||Ordovician||||deposition|Ordovician||||||65||No|6943|||||||Pale-grey, largely oxidized siltstone with medium-grained sandstone capping the basal shoaling-up cycle, often capped by a dolomitic section. Locally contains thin gypsum and dolomite beds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Marshall Pool Subgroup|79020|||||Yes|Subgroup|Formal|Resvd name published|Briefly described|Kalgoorlie Group|26647|||Neoarchean|||||Neoarchean||||||||No|70153||J. Sapkota (GSWA)|22-JAN-15|||Map Sheet = Wildara. Nearest Town = Leonora. briefdescription = Consists of mafic, ultramafic, sedimentary and felsic volcanic rocks. It includes the following formations: Mount Fouracre Basalt, Mount Clifford Komatiite, Hangover Formation. Wheretobepublished = GSWA east Yilgarn digital package (maps and explanatory notes).|Mafic and ultramafic rocks with minor sedimentary and felsic volcanic rocks.|basic volcanic rock|acid volcanic rock||N||16-AUG-23
Marty Bore Granite|37104|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||intrusion|||||||||No|23751||||||Variation of reserved name Marty Bore Monzogranite, published by originator (Sheppard et al 1997).||acid intrusive rock|||Y||17-JAN-23
Mary Bore Granite|78755|||||Yes|Formation, beds|Reserved|Reserved|Briefly described|||||Neoarchean||||intrusion|Neoarchean||||||||No|70153||Patison, N. (GSWA)|26-FEB-14|||Map Sheet SH51-5, 3139, MELITA.  Nearest Town = Leonora. Brief description = Quartz-feldspar-biotite granite; massive to foliated. To be published: GSWA Explanatory Notes Database.|Quartz-feldspar-biotite granite; massive to foliated.|acid intrusive rock|||Y||17-JAN-23
Marymia Inlier granitic rocks 83760|83760|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||inferred||Mesoarchean|3010||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Marymia Inlier granitic unit', A-g-YMA. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Granitic rock, metamorphosed.|acid intrusive rock|||Y||30-JAN-23
Mason Conglomerate|67998|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Buldya Group|33826|||Cryogenian||||deposition|Cryogenian||||||||No|62987||Hocking, R.|14-FEB-05||||||||N||17-JAN-23
Mason Knob Monzogranite|75242|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2660|3|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2660|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66116||Mark Pawley (GSWA)|10-JUN-09|||For use on map sheet SH 51-3; nearest town is Cosmo Newbury. Located in northeast corner of the Yilgarn Craton. Dated at 2660 +/-3 Ma (GSWA SHRIMP age). To be published in several GSWA publications in near future, including 1:100K maps and geochronological reports.|Porphyritic monzogranite; fine- to coarse-grained with feldspar megacrysts, locally seriate; metamorphosed|acid intrusive rock|||Y||09-MAY-23
Matchbox Granite|36102|Matchbox|30069|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|72437||Sheppard S.|14-JUN-01|||Reserved for  a granite in the Lissadell 1:250 000 sheet area (east Kimberley region). Used in Proterozoic Granites GIS as well. Not related to Matchbox Range Granite in QLD. Age updated by I.Sweet.|Medium- and coarse-grained porphyritic biotite monzogranite and syenogranite|acid intrusive rock|||Y||17-JAN-23
Matheson Formation|11444|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Glidden Group|25926|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|44397|48927|||||In the Glidden Basin. Glidden Group (Mesoproterozoic)|Laminated claystone, fissile laminated commonly micaceous shale and siltstone, flaggy fine and partly pyritic subgreywacke, and ferruginous feldspathic sandstone and medium grained quartz sandstone|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Maude Creek Kimberlite|11466|Maude Creek kimberlite|11467|||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoproterozoic|||||Neoproterozoic|815|||||||No|41158|||||||||||Y||17-JAN-23
Maude Headley Member|31884|Maude Headley Volcanic Member|30321|||Yes|Member, phase|Formal|Resvd name published|Defined|Olympio Formation|14567|||Orosirian|1847|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1857|5|isotopic, U/Pb-Pb/Pb ion probe|||1000|WA|Yes|43854|23621|Blake D.H.|21-JUN-96|Hocking, R.|22-APR-99|East Kimberley. McIntosh 1:100 000 sheet area. Butchers Gully Suite.|Metamorphosed andesitic to trachytic volcanic and volcaniclastic rock with carbonate-rich matrix; minor ferruginous chert.|metamorphosed intermediate igneous rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Maudoobar Sandstone|23772|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Frasnian||||deposition|Frasnian|||||||WA|No|40993|40993|G.M.Beere, A.J.Mory|23-MAR-84|||See also the misspelt Maudobar Sandstone.||siliciclastic sedimentary rock|||N||17-JAN-23
Maurice Formation|11476|||||Yes|Formation, beds|Formal|Other new published name|Defined|Pertaoorrta Group|15091|||Early Cambrian|||inferred, lithostratigraphic correlation|deposition|Ediacaran|||inferred, lithostratigraphic correlation|||3600|NT|No|48842|48842|||||Not to be confused with Maurice Group of SA. Max depositional age from detrital zircon from lower Maurice Formation: 831+/-13 Ma. Max depositional age from detrital zircon from upper Maurice Formation: 698+/-20 Ma.|Very fine to medium grained, cross bedded quartz sandstone; minor laminated micaceous siltstone and micaceous sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Maverick Monzogranite|42116|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50315||||||Probably an informal name. See also Sarah Granite (defined).|Equigranular, homogenous, undeformed, hornblende-biotite monzogranite to granodiorite.|acid intrusive rock|||Y||17-JAN-23
Maxicar beds|11484|Maxicar Beds|11483|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|30146||||||May be a facies of Donnybrook Sandstone. Not used since this comment made in 1990.|Ferruginous feldspathic sandstone, claystone, siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
May River Conglomerate|23773|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40837||P.Lehmann|27-JAN-84||||||||N||17-JAN-23
May River Shale|11489|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Fairfield Group|6483|||Tournaisian||||deposition|Famennian|||||||WA|No|40838||||||This informal, subsurface only, unit included in the Gumhole Formation of the Fairfield group, but represents a reef platform drowning event not recognised in outcrop.|Shale, fine grained, silty limestones, nodular crinoidal-peloidal wackestone-packstone and crinoidal siltstone-wackestone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Maydon Basalt|36844|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||eruption|Archean||||||2000||No|23754|||||||Metabasalt, commonly pillowed with minor interflow sedimentary rocks; dolerite; amphibolite.|metamorphosed basic igneous rock|||N||17-JAN-23
McAlly Shale|11509|||||Yes|Formation, beds|Formal|Other new published name|Defined|Louisa Downs Group|10676|||Ediacaran|576|80|isotopic, Rb/Sr|deposition|Ediacaran|610|||||1500|WA|No|44397|48927|||||Mount Ramsey 1:250 000 sheet area.  In the Louisa Basin.|Black grey and green shale with minor siltstone and fine to very fine sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
McAuliffe Well Syenite|29542|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2651|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2651|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|44203||Oversby B.|03-AUG-95|||Eastern Goldfields.|Medium- to coarse-grained quartz syenite; K-feldspar megacrysts.|intermediate intrusive rock|||Y|I-type|17-JAN-23
McFadden Formation|11539|McFadden Sandstone|25220|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Disappointment Group|33754|||Ediacaran|||inferred, geological correlation|deposition|Ediacaran|560||inferred, geochemical correlation|||1500||No|42708|||||||Quartz sandstone, commonly giant-scale cross-bedded; minor siltstone and conglomerate; largely eolian|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||04-APR-23
McHale Granite|28737|McHale Granodiorite|26730|||Yes|Formation, beds|Formal|Variation of published name|Described|||Mabel Downs Suite|30660|Paleoproterozoic|1827|3||magmatic crystallisation|Paleoproterozoic|1827|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|44317||||||This name was superseded by McHale Granodiorite in 1969, but the name was revived in 2004 and is now the preferred version [advice from GSWA Dec 2013, AUG2014].|Medium- to coarse grained,equigranular biotite-hornblende tonalite and biotite granodiorite extensive magmatic brecciation and associated alteration|acid intrusive rock|||Y||17-JAN-23
McIntosh Suite|78624|McIntosh Gabbro|11543|||Yes|Group, Suite|Formal|Variation of published name|Described|||Sally Downs Supersuite|31785|Orosirian|1842|3|isotopic, U/Pb-Pb/Pb ion probe||Orosirian|1855|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|69165||||||Includes 4 unnamed units. Lamboo Province, Halls Creek Orogen. Geochronology in the east Kimberley area of Western Australia. SHRIMP 1855+/-2 Ma, 1842+/-3 Ma (SHRIMP Data from OZCHRON1). See also McIntosh Intrusion, McIntosh Sill.|Layered mafic-ultramafic intrusions: magnetite gabbro, magnetite gabbronorite, magnetite-olivine gabbro, olivine gabbro, leucogabbro, leucogabbronorite, anorthosite, olivine gabbronorite, gabbro, gabbronorite, peridotite and troctolite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
McIntosh intrusion|31794|McIntosh Gabbro|11543|||Yes|Formation, beds|Informal|Variation of published name|Described|||McIntosh Suite|78624|Paleoproterozoic|||||Paleoproterozoic||||||||No|43854||||||See also McIntosh Gabbro. In the Central Zone of the Lamboo Complex. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic-ultramafic intrusions; peridotite, troctolite, gabbro, olivine gabbro, gabbronorite, magnetite gabbro, magnetite-olivine gabbro, leucogabbro, leucogabbronorite, and anorthosite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
McKay Creek Metasyenogranite|76190|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Paleoproterozoic|1761|10||intrusion|Paleoproterozoic|1763|||||||No|68186||Spaggiari, C. (GSWA)|27-OCT-11|||Metasyenogranite, mingled with metagabbro; localised hybrids of metagranodiorite and metadiorite; may include intrusions of Bobbie Point Metasyenogranite and remnants of Archean rocks. To be published  in 1:250 000-scale interpreted bedrock geology map layers; 2011. Geological Survey of Western Australia Explanatory Notes database [is the explanatory notes database publicly accessible? Not Yet - Roger Hocking 31-Oct-2011].|Medium-grained, equigranular, K-feldspar-rich metasyenogranite. Undeformed to moderate NE-trending foliation. Mingling of this alkaline granitic magma with metagabbro and quartz metadiorite has produced dioritic hybrid rocks.|metamorphosed acid igneous rock|||Y||09-MAY-23
McKinrick Hill lamproite|11560|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158||||||Probably named for area where found.|||||Y||17-JAN-23
McPhee Formation|26023|McPhee Chert|78762|||Yes|Formation, beds|Formal|Other new published name|Defined|Talga Talga Subgroup|17680|||Paleoarchean|3477|2|isotopic, U/Pb-Pb/Pb ion probe|eruption|Paleoarchean|3481|||||3000|WA|No|31309|31309|||||The basal unit is referred to as the Big Chert where it overlies the Upper Extrusives unit of the North Star Basalt.  In the eastern part of Pilbara Craton within the Warrawoona Group of the Pilbara Supergroup.|Talc-chlorite schist and talc-carbonate schist, chert, banded iron formation, basalt, pelite, minor felsic volcaniclastic rocks.|metamorphosed basic igneous rock|metasedimentary rock||N||17-JAN-23
McSherrys Granodiorite|29292|||||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1862|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|30525|||||||Foliated porphyritic to even grained biotite hornblende granodiorite and tonalite with minor monzogranite and abundant small mafic xenoliths.|acid intrusive rock|||Y||17-JAN-23
McWhae Ridge stromatolite|11582|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|40834|||||||||||N||17-JAN-23
Meda Formation|26024|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Lower Cretaceous||||deposition|Upper Jurassic||||||7|WA|No|44998|45153|||||See also Lexicon. See also Meda Sandstone.|Fine to coarse sandstone, granule to pebble conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Meeberrie Gneiss|11608|Meeberrie gneiss|23784|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Narryer Gneiss Complex|13916|||Eoarchean|3620|40|isotopic, U/Pb|metamorphism|Eoarchean|3731|14|isotopic, U/Pb-Pb/Pb ion probe|||||No|40588|||||||Monzogranitic to tonalitic gneiss with gneissic veining. In places contains inclusions of layered anorthosite, leucogabbro, gabbro and ultramafic rocks|high grade metamorphic rock|basic intrusive rock||Y||19-JUL-23
Meekatharra Formation|74805|||||Yes|Formation, beds|Formal|Resvd name published|Described|Polelle Group|74804|||Neoarchean|2760|||deposition|Neoarchean|2800|||eruption||2500||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Basalt and komatiitic basalt; minor felsic volcanic rocks; generally weakly metamorphosed.|basic volcanic rock|metasedimentary rock||N||04-SEP-23
Meeline Suite|74822|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean|2780||inferred||Mesoarchean|2815||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Age: c.2780Ma.|Mafic and ultra-mafic layered intrusive rocks - dominantly gabbros with anorthosite, magnetite and ultramafic cumulate rocks.|basic intrusive rock|ultramafic intrusive rock||Y||20-JUL-23
Meelup granite|38680|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||||No|23788||||||||acid intrusive rock|||Y||17-JAN-23
Meentheena Member|36836|Meentheena Carbonate Member|11611|||Yes|Member, phase|Formal|Variation of published name|Fully described|Tumbiana Formation|18668|||Neoarchean||||deposition|Neoarchean|2719||||30|50||No|23575||||||Replaces Meentheena Carbonate Member. Stromatolitic.|Lenticular units of stromatolitic, dark grey siliceous limestone and dolomite with volcaniclastic sandstone and siltstone, including accretionary lapilli beds; with calcareous sandstone, carbonaceous shale, local quartz sandstone and conglomerate|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Melita Formation|78757|Melita Rhyolite|31100|||Yes|Formation, beds|Formal|Variation of published name|Described|Gindalbie Group|7247|||||||deposition|||||||||No|69631||Patison, N. (GSWA)|26-FEB-14|||This name reserved to replace existing Melita Rhyolite. Map Sheet SH51-5, 3139, MELITA.  Nearest Town = Leonora. Brief description = Rhyolitic to ryhodacitic rocks interleaved with contemporaneous basalt and andesitic basalts; dolerite and gabbro. To be published: GSWA Explanatory Notes Database.|Rhyolitic to dacitic rocks interleaved with basalt, basaltic andesite, dolerite and gabbro; metamorphosed|siliciclastic sedimentary rock|||N||09-MAY-23
Melita Rhyolite|31100|Melita|22303|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||||||eruption|||||||700|WA|No|43478|43478|||||Reserved as Melita (Witt, 1991). See also Melita Complex.||acid volcanic rock|||N||17-JAN-23
Melligo Sandstone|11627|Melligo Quartzite|11626|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Aptian||||deposition|Barremian||||||40|WA|No|32648|45153||||||Littoral white to pale grey medium to coarse grained silicified quartz sandstone with local large-scale cross bedding. Contains fossil bivalves.|siliciclastic sedimentary rock|||N||12-SEP-23
Mellinjerie Limestone|11629|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Frasnian||||deposition|Givetian|||||200|300|WA|No|30110|45153|||||Possibly intended to be replaced by  Mellinjerie Formation? Previously included in Lennard River Group.|Limestone, dolomite, and shale.|carbonate sedimentary rock|||N||17-JAN-23
Melon Patch Granite|78963|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Lamboo Complex|10109|||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|44155|||||||Even-grained biotite syenogranite and monzogranite; xenolith rich; folded and strongly foliated.|acid intrusive rock|foliated metamorphic rock||Y||17-JAN-23
Menangina Monzogranite|33665|Menangina Clan|33804|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|44203||||||Edjudina 1:250 000 sheet area. Reserved as Menangina Association and Menangina Clan.|Biotite monzogranite with prominent K-feldspar megacrysts; cut by pegmatite and aplite; Hi Ca granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mendena Formation|11645|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Bastion Group|1242|||Mesoproterozoic||||deposition|Statherian||||||||No|44366||||||Defn on Tech File SD/52-14. Age updated by I.Sweet.|Quartz sandstone and green and purple siltstone; fine-grained commonly micaceous and feldspathic sandstone; dolostone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Menyous Member|11650|Menyous Limestone Member|37210|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Pillara Formation|15204|||Devonian||||deposition|Devonian||||||420|WA|No|24000||||||Published as Menyous Member in 1973, by J.F.Read in Bull Canadian Petroleum Geology 21(3), p344-394. Definition card for Menyous Limestone Member approved Dec 1974, but this longer name apparently never published.|||||N||17-JAN-23
Menzies Formation|26027|Menzies|22312|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Pliocene|||||||WA|No|41199|41199|||||Reserved as Menzies (Glassford 1985).|||||N||17-JAN-23
Mereenie Sandstone|11667|Mareenie Sandstone|11286|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Middle Devonian|398||inferred, overlying unit|deposition|Ordovician|461||inferred, underlying unit|deposition|220|1500|NT|No|48838|48838|||||Defined 1962. Important aquifer - main source of groundwater for Alice Springs.  Formerly included in the underlying Larapinta Group and later,  the overlying Pertnjarra Group. Ungrouped in 2005. Note that Schmid (2016) and Austin et al (2017) still include this unit in the Larapinta Group. Poorly constrained age - probably Silurian-Devonian, but could be as old as Late Ordovician.  Formerly Mareena Bluff Formation. Also known as 'Marena red sandstone'. Numerical ages from Global Palaeomagnetic Database (GPMDB; McElhinny & Lock 1993, 1996).|Porous, white to pale-brown, fine grained, well sorted quartz sandstone, minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Merewether Bore Formation|74647|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Archean||||deposition|Archean||||||||No|||Riganti, A. (GSWA)|05-AUG-08|||For use on map sheet, MEREWETHER. Nearest town is Wiluna. Exposed on the western side of the Joyners Find greenstone belt. To be published in 2009: Geological Survey of Western Australia 'Central Yilgarn 100k Geological Information Series, 2009 update'. Abstract for the 2010 5th International Archean Symposium.|Siliciclastic sediments -- sequence of strongly foliated conglomerates and shale/siltstones .||||N||17-JAN-23
Merlinleigh Sandstone|11694|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Late Eocene|34|||deposition|Lutetian|41|||||15||No|44537||||||See also Lexicon. SG50-6. Overlies and interfingers with Giralia Calcarenite. Age: 42-38.5Ma.|Sandstone, poorly sorted, locally fossiliferous; fluviatile to shallow marine; lesser siltstone, conglomerate and claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mermaid Formation|31126|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Aptian||||deposition|Berriasian||||||||No|44143|||||||Sandstone, claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Merougil Formation|11698|Merougil Conglomerate|28110|||Yes|Formation, beds|Formal|Variation of published name|Described|Merougil Supersequence|34372|||Archean|2664|6||deposition|Archean|2664|6||||||No|42696||||||In the Kalgoorlie Terrane in Eastern Goldfields Superterrane of the Yilgarn Craton. 2016 Advice from GSWA that Formation is preferred on the basis of unit lithology, and is used in East Yilgarn GIS 2014.|Biotite-bearing pebbly sandstone, sandstone, and siltstone; minor polymictic conglomerate; metamorphosed.|siliciclastic sedimentary rock|||N||17-JAN-23
Mertondale Granite|11737|Mertondale granite|11738|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|35113||||||||acid intrusive rock|||Y||17-JAN-23
Mesoproterozoic amphibolite-facies metamorphics 76658|76658|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|1200||||Mesoproterozoic|1400|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic amphibolite-facies metamorphics 76659|76659|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ectasian|1280||||Ectasian|1320|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic amphibolite-facies metamorphics 76660|76660|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Calymmian|1400||||Calymmian|1560|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic amphibolite-facies metamorphics 76662|76662|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Calymmian|1530||||Calymmian|1565|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic felsic volcanics 76630|76630|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Calymmian|1550|||eruption|Calymmian|1570|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanic rock, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Mesoproterozoic granites 76633|76633|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1070|||intrusion|Stenian|1090|||||||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
Mesoproterozoic granites 76634|76634|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1100|||intrusion|Ectasian|1300|||||||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
Mesoproterozoic granites 76635|76635|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1130|||intrusion|Stenian|1200|||||||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
Mesoproterozoic granites 76636|76636|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ectasian|1280|||intrusion|Ectasian|1320|||||||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
Mesoproterozoic granites 76637|76637|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|1500|||intrusion|Mesoproterozoic|1620|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Note: Max Age name is in conflict with numerical age (Paleoproterozoic). Which is correct? CEB Feb-2012]|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
Mesoproterozoic granulite-facies metamorphics 76641|76641|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|1100||||Mesoproterozoic|1080|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Note: numerical ages the wrong way around? or a typo? CEB Feb-2012]|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic granulite-facies metamorphics 76642|76642|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ectasian|1200||||Ectasian|1300|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic granulite-facies metamorphics 76643|76643|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ectasian|1280||||Ectasian|1300|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Mesoproterozoic mafic intrusives 76625|76625|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1190|||intrusion|Ectasian|1210|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|||Y||17-JAN-23
Mesoproterozoic mafic-ultramafic intrusives 76655|76655|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1075|||intrusion|Stenian|1080|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly ultramafic intrusive rocks.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Mesoproterozoic sedimentary rocks 76647|76647|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|1000|||deposition|Mesoproterozoic|1200|||||||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
Mesoproterozoic sedimentary rocks 76649|76649|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1040|||deposition|Stenian|1080|||||||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
Mesoproterozoic sedimentary rocks 76650|76650|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1140|||deposition|Stenian|1160|||||||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
Mesoproterozoic sedimentary rocks 76651|76651|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Stenian|1150|||deposition|Calymmian|1550|||||||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
Mesoproterozoic sedimentary rocks 76652|76652|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ectasian|1200|||deposition|Ectasian|1250|||||||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
Mesoproterozoic sedimentary rocks 76654|76654|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Calymmian|1500|||deposition|Calymmian|1560|||||||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
Mesozoic siliciclastic units, eastern Canning Basin 80964|80964|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesozoic|||inferred||Mesozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone, siltstone, claystone, and conglomerate; undivided|siliciclastic sedimentary rock|||N||17-JAN-23
Metawandy Granite|27193|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Mesoarchean|2830|||intrusion|Mesoarchean|2910||||||WA|No|34732|35218|||||Forms the core of the Wyloo Dome.|Sericitised monzogranite, cataclastically deformed in part with locally abundant mafic xenoliths.|acid intrusive rock|||Y||17-JAN-23
Meteorite Bore Member|27276|||||Yes|Member, phase|Formal|Other new published name|Redefined|Kungarra Formation|26271|||Siderian|2208|10|inferred, intrusive relationship|diagenesis|Siderian|2340|22|isotopic, U/Pb|maximum depositional age|270|400|WA|Yes|35976|35976|Trendall, A.F.|19-OCT-78|||Within Turee Group, in Hardey syncline. Intruded by mafic sill with SHRIMP Pb/Pb baddelyite age of 2208 +/-10 Ma. previously included Calgra Member and correlated with Cave Hill Member.|Predominantly glacigenic diamictite, with minor thin interbeds of planar laminated siltstone. Diamictite clasts comprise metamorphosed felsic volcanic rock, chert, and sandstone.|siliciclastic sedimentary rock|||N||27-JUN-23
Mianwali Formation|11753|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|34008|||||||||||N||17-JAN-23
Miaree Granite|68497|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2997|3||intrusion|Archean|2997|3||||||No|64174|63441|Hickman, A. (GSWA)|30-MAR-05|Hocking, R.||New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).   Also, for DAMPIER map sheet; nearest town Karratha.  Intrudes Roebourne Group, the Regal Formation and Cleaverville Formation.|Monzogranite and syenogranite; foliated; metamorphosed|acid intrusive rock|||Y||10-MAY-23
Michael Hills Gabbro|11769|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Giles Complex|7206|||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|30386||||||See also Michael Hills intrusion.|Gabbro, anorthosite, pyroxenite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Mick Well Carbonatite Complex|83847|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Gascoyne region, near the Chalba shear zone. High grade REE discoveries by Kingfisher Mining in veins and dykes associated with carbonatite intrusions. See: https://wcsecure.weblink.com.au/pdf/KFM/02604851.pdf|Carbonatites, as well as the associated alteration and late-stage mineralised veins and carbonatite dykes. Fenites (carbonatite-associated alteration) and potassium fenites, are well-developed.|exotic composition igneous rock|metasomatic rock||Y||27-APR-23
Middle Spring Granite|75925|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic|1788|7||||||No|66105|||||||Pale grey, gneissic to foliated metamonzogranite; derived from medium-grained equigranular to sparsely porphyritic biotite monzogranite. Includes an unnamed unit of pale grey, recrystallised mylonitic metamonzogranite|metamorphosed acid igneous rock|||Y||17-JAN-23
Middle Well Monzogranite|35792|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Riganti A.|30-MAR-01|||Forms two elongated strips intruded into the Edale shear zone,  Everett Creek 1:100 000 sheet area, 2841, Youanmi 1:250 000, SH50-4.||acid intrusive rock|||Y||17-JAN-23
Midgengadgi Monzogranite|73383|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Cleland Supersuite|68665|Paleoarchean|3274|5||intrusion|Paleoarchean|3277|||||||No|63417|65829|Hickman, A. (GSWA)|28-MAY-07|||For use on map sheet 3055; nearest town is Marble Bar. To be published: NULLAGINE 1:250K Geol. Series map, (June 2007)  with formal definition in Yilgalong 1:100K Explan. Notes (June 2007). Intrusion of Cleland Supersuite in Yilgalong Granitic Complex.|Leucocratic biotite monzogranite; seriate to porphyritic; medium- to coarse-grained, weakly metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Mikado Gabbro|80124|||||Yes|Formation, beds|Informal|Other new published name|Described|Bounty Igneous Complex|78349|||Neoarchean|||inferred||Neoarchean|||inferred|||250||No|71212|||||||Medium to coarse-grained and mostly massive gabbro.|basic intrusive rock|||Y||17-JAN-23
Milba Formation|30319|Olympio Formation|14567|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Orosirian||||deposition|Orosirian|1835|||||1000|WA|Yes|43854|23621|Blake D.H.|21-JUN-96|Hocking, R.|22-APR-99|McIntosh 1:100 000 sheet area, East Kimberley. Unit is fault-bounded. of the Halls Creek Orogen. Previously mapped as Olympio Formation of Halls Creek Group (Gemuts & Smith 1968). In the Central Zone of Lamboo Complex.|Turbiditic greywacke, siltstone and mudstone; lithic, feldspathic and quartz sandstone; calcareous rocks; chert; and minor mafic lavas and sills. Regionally metamorphosed to mainly greenschist facies; commonly strongly foliated.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||23-MAR-23
Milesia Formation|11834|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mission Group|11971|||Stenian|825||inferred, overlying unit|minimum depositional age|Stenian|1057|6|inferred, underlying unit|maximum depositional age|300|||No|30944||||||Bentley Basin.|Basaltic lava flow: highly altered, strongly amygdaloidal or quartz-mottled basalt, basalt breccia, sedimentary intercalations include pinkish, quartzitic sandstones, and conglomerates, and uppermost continental red beds.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Milga Gneiss|31769|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean|||||Archean|3000|||||||No|43835|||||||Granodioritic gneiss with 3500 and 3315 Ma zircon xenocrysts.|high grade metamorphic rock|||N||17-JAN-23
Millajiddee Member|26030|||||Yes|Member, phase|Formal|Other new published name|Defined|Carolyn Formation|24214|||Sakmarian|||inferred, overlying unit|deposition|Sakmarian|||inferred, underlying unit|||110|WA|Yes|30338|30338|Crowe R.W.A., Towner R|22-MAY-75|WA SNSC|31-MAR-76|See also misspelling Millajidee. Originally defined (1976) as of Grant Formation. With the relegation of Carolyn Formation to informal status, this Member may be upgraded to a Formation of the Grant Group after further assessment (Backhouse and Mory, 2020 GSWA Report 207).|Mainly sandstone and minor siltstone and conglomerate. Grain size mainly fine though a medium to coarse-grained middle part is present. Large and small-scale cross-bedding is common and the upper part is slumped in many areas.|siliciclastic sedimentary rock|||N||17-JAN-23
Millars Monzogranite|35510|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean|2635|||intrusion|Archean|2711|||||||No|24335||Riganti A., Chen S.F.|19-APR-00|||To be used in the Jackson 1:100 000 sheet area (SH50-12 / 2737).|Quartz-rich monzogranite|acid intrusive rock|||Y||10-MAY-23
Miller Basalt|11844|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian|1057|6||eruption|Stenian|1065|5||||||No|30944||||||Bentley Basin.|Lava flows with basal massive basalts grading upward into progressively stronger vesicular and amygdaloidal basalts; local brecciated tops; mudstone-sandstone, volcaniclastic conglomerate, cherty microbialites.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Milli Milli Inlier  - basaltic, andesitic rocks 83761|83761|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3225||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Milli Milli Inlier greenstones', A-b-PMI. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Basaltic and andesitic flows, and associated volcaniclastic rocks; metamorphosed|igneous volcanic rock|||N||30-JAN-23
Milli Milli Inlier  - metagranitic rocks 83763|83763|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2890||inferred||Paleoarchean|3225||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Milli Milli Inlier metagranitc unit', A-mgn-PMI.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Foliated, gneissic, or migmatitic metagranitic rock|foliated metamorphic rock|metamorphosed acid igneous rock||Y||30-JAN-23
Milli Milli Inlier  - sedimentary rocks 83762|83762|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3225||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as ,Milli Milli Inlier greenstones', A-s-PMI. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Sedimentary rock, undivided; includes oligomicitic and polymictic conglomerate, pebbly sandstone, mudstone, siltstone, and chert; metamorphosed|sedimentary rock|||N||30-JAN-23
Millidie Creek Formation|11849|||||Yes|Formation, beds|Formal|Other new published name|Defined|Padbury Group|27093|||Orosirian||||deposition|Orosirian|||||||WA|No|29663|29663||||||Ferruginous shale and siltstone, schist, with porphyroblasts of pyrite; granular iron formation; bedded dolomite and dolomitic siltstone|fine grained siliciclastic rock|metasedimentary rock||N||17-JAN-23
Millidie Creek Formation - banded iron formation|74442|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Millidie Creek Formation|11849|||Statherian||||deposition|Orosirian||||||||No|||||||Used on Surface Geology of Australia 1:1 million scale dataset 2010 edition.|Metamorphosed banded and granular iron formation with minor shale|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Millidie Creek Formation - carbonates|74443|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Millidie Creek Formation|11849|||Statherian||||deposition|Orosirian||||||||No|||||||Used on Surface Geology of Australia 1:1 million scale dataset 2010 edition.|Sericitic shale with finely laminated carbonate layers, dolomitic marble, metamorphosed dolomitic sandstone, chloritic siltstone and quartz chlorite carbonate schist|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Millidie Creek Formation - metamorphosed|74444|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Millidie Creek Formation|11849|||Statherian|||||Orosirian||||||||No|||||||Used on Surface Geology of Australia 1:1 million scale dataset 2010 edition.|Quartz-sericite-hematite phyllite and quartz-muscovite schist|metasedimentary siliciclastic rock|||N||17-JAN-23
Milligans Formation|11862|Milligans beds|11864|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Weaber Group|19643|||Visean||||deposition|Tournaisian||||||2143||No|44159|61542|||||Of Beere (1984). Gorter et al (2005) subdivided off part of the original Milligans Formation as Yow Fm.and relegated Waggon Creek Fm. to Waggon Creek  facies. See also Waggon Creek Formation (interbedded within Milligans Formation and now relegated to Waggon Creek Facies status within Milligans Formation by Gorter et al (2005) - APPEA Journal 2005 (45/1).)|Black and dark grey shale, partly calcareous; minor limestone; rare fine to medium-grained sandstone; thin to thick beds; diverse fauna.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Millindinna Intrusion|33454|Millindinna Complex|11867|||Yes|Formation, beds|Formal|Variation of published name|Described|||Langenbeck Suite|68667|Mesoarchean||||eruption|Mesoarchean||||||||No|44863||||||Use of the stratigraphic term "Intrusion" is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Supersedes Millindinna Complex and Millindinnah Complex. Of Sisiters Supersuite.|Mafic and ultramafic rocks (gabbro, pyroxenite, and peridotite) as layered sills; metamorphosed.|basic volcanic rock|ultramafic intrusive rock||Y||17-JAN-23
Milliwindi Dolerite|39039|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Kalkarindji Suite|75724|Early Cambrian|510|1||magmatic crystallisation|Early Cambrian|513|12|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|24303||||||270 km long northwest-trending dolerite dyke near Bell Gorge on Gibb River Road, west Kimberley; interpreted to be a feeder dyke to Antrim Plateau Volcanics (location: Lat 17o 10' 14", Long 125o, 19' 2"; 7465000 E, 8100100 N). Age: 513 +/- 12Ma (SHRIMP Zircon, Hanley and Wingate, 2000). See also informal Milliwindi dolerite. Included in the Kalkarindji Suite in Oct 2009. Note that GSWA considers this unit to be at Group/Suite rank rather than Formation rank.|Dolerite dykes.|basic intrusive rock|||Y||17-JAN-23
Millstream Formation|73464|Millstream Dolomite|23792|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Pleistocene||||deposition|Miocene||||||30||No|63372||||||Lower Fortescue valley. The main aquifer.|Dolomite, calcareous dolomite, calcrete; with silcrete, clay, chert breccia, and local basal conglomerate.|carbonate sedimentary rock|||N||17-JAN-23
Millury Formation|37495|||||Yes|Formation, beds|Formal|Resvd name published|Described|Scorpion Group|16679|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|50195||Hocking, R.|12-SEP-02|||Original description: Rippled and cross-bedded quartz sandstone and siltstone, with basal cobble and boulder conglomerate and interbedded minor sandstone in places. Lith description updated as per GSWA Interpreted Bedrock Geology 2020.|Quartz sandstone; lesser siltstone; rippled and cross-bedded; local evaporite pseudomorphs; local conglomerate, dolomite and limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Millyit Sandstone|27196|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Triassic|||inferred, biostratigraphic correlation|deposition|Lower Triassic|||inferred|||93|WA|No|44998|45153|||||See also Lexicon.|Poorly to thinly bedded and cross bedded and in places graded fine to medium grained sandstone with minor conglomerate and siltstone; partly fossiliferous with plant fossils and palynomorphs.|siliciclastic sedimentary rock|||N||17-JAN-23
Milyering Member|11877|Pilgramunna Formation|15198|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Exmouth Sandstone|6446|||Pleistocene||||deposition|Pleistocene||||||30|WA|No|33593|33593|||||See Definition reference for source of unit relationships etc.|||||N||17-JAN-23
Minara Group|73397|Minara volcanics|11879|||Yes|Group, Suite|Formal|Resvd name published|Described|||||Neoarchean|||||Neoarchean||||||||No|65147||Groenewald, B. (GSWA)|08-JUN-07||||Metamorphosed volcanic rocks (mostly basic) and volcaniclastic sandstones.|metamorphosed basic igneous rock|basic volcanic rock||N||17-JAN-23
Minchin Siltstone|11883|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Triassic||||deposition|Triassic||||||||No|34008||||||Included within the Kockatea Shale?||siliciclastic sedimentary rock|||N||17-JAN-23
Mindoolah Tonalite|74850|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Archean||||intrusion|Archean||||||||No|64891||Van Kranendonk, M. (GSWA)|31-OCT-08|||Not related to Mindoola Formation - this was used in former stratigrap[hic description of rocks in the Murchison Domain but the grouping has now been revised and this name abandoned (2008).  Age ?2750 Ma. Geological province: NE Murchison Domain. Part of the Annean Supersuite.|Tonalite; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Minerie Formation|73394|||||Yes|Formation, beds|Formal|Resvd name published|Described|Minara Group|73397|||Neoarchean|2698|||deposition|Neoarchean|2704|||||||No|65147||Groenewald, B. (GSWA)|08-JUN-07|||See also Minerie Sequence.|Basalt, massive to pillowed; local relict pyroxene-spinifex texture; includes felsic volcaniclastic sandstone; metamorphosed.|metamorphosed basic igneous rock|basic volcanic rock||N||17-JAN-23
Minga Dolerite|81890|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Mesoproterozoic|1070||inferred||Paleoproterozoic|1670||inferred, intrusive relationship||||WA|Yes|73102||Blay, O. (GSWA)|20-MAY-20|Haines, P.(GSWA) WA st|24-DEC-21|In Mangaroon and Eudamullah 100k mapsheet areas, Western Australia. Dolerite dykes occur within a westernmost part of the Capricorn Orogen and  intrude Paleoproterozoic metamorphosed sedimentary and igneous rocks of the Gascoyne Province. It was named after the Minga Well near the Mangaroon HS on the Mangaroon 100k mapsheet, Western Australia. The `Well? part is dropped to avoid a potential confusion with the Mundine Well Dolerite dykes that occupy the same area as the Minga Dolerite dykes.|Dolerite dykes.|basic intrusive rock|||Y||17-JAN-23
Mingah Member|38088|Mingah Tuff Member|11904|||Yes|Member, phase|Formal|Variation of published name|Fully described|Tumbiana Formation|18668|||Neoarchean|2721|4||deposition|Neoarchean|2727|5||||150||No|24352||||||Supersedes Mingah Tuff Member.|Basaltic to andesitic volcaniclastic sandstone and siltstone, quartz sandstone, shale and stromatolitic carbonate units; basalt flows|medium-coarse grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Mingenew Formation|11908|Mingenew Beds|11907|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Artinskian||||deposition|Artinskian||||||91|WA|No|45001|36293|||||See also Lexicon. (Maitland, 1919).|Fine- to medium-grained ferruginous sandstone, shale, micaceous siltstone, conglomerate.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mingol Dolerite Member|41346|||||Yes|Member, phase|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Pirajno, F.|19-JUL-04|||Map sheet: Lee Steere.||basic intrusive rock|||N||17-JAN-23
Minigwal Suite|75920|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Neoarchean|2765||||Neoarchean|2769|||||||No|66113||||||Burtville Terrane, Yilgarn Craton. Age c.2769 to c.2765 Ma. Comprises Hope Campbell, Surprise, and Baseline Orthogneisses.|Migmatitic quartz-biotite orthogneiss and migmatitic orthogneiss.|metamorphosed igneous rock|||Y||17-JAN-23
Minim Cove Member|11914|||||Yes|Member, phase|Formal|Variation of published name|Described|Tamala Limestone|17719|||||||deposition|||||||||No|41245|||||||||||N||17-JAN-23
Mininer Turbidite Member|24380|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Ashburton Formation|698|||Statherian||||deposition|Orosirian|||||||WA|Yes|70958||R.C.Horwitz|16-OCT-79|||No type section or type definition identified.|Includes turbidites.||||N||17-JAN-23
Miningarra Group|79473|Miningarra Subgroup|26032|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Orosirian|1808||inferred||Orosirian|1865||inferred|||||No|69003||||||Name used in:  Johnson, SP, 2013, The birth of supercontinents and the Proterozoic assembly of Western Australia: Geological Survey of Western Australia, p4, p14-15. [to be indexed soon, CEB Jul-2016]|Fine-grained sandstone, siltstone, shale, and stromatolitic limestone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||12-MAY-23
Minjar Member|78985|Minjar Group|40547|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Gossan Hill Formation|78983|||Mesoarchean|2947||inferred|deposition|Mesoarchean|2963||inferred||||WA|No|70769||Ivanic, T. (GSWA)|07-JAN-15|||Used in Murchison Domain updates in 2015. Named after Minjar Hill, Badja 1:100k map sheet, 28deg48'S 116deg57'E. Type area: Cattle Well area. Stratigraphically overlying Scuddles Member, possibly conformable. Older than dated Gossan Hill Fm units.|Felsic volcaniclastic rocks and fine-grained siliciclastic sedimentary rocks; minor amygdaloidal basalt; metmorphosed|acid volcanic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Minjoo Salt|26276|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carribuddy Group|3686|||Upper Ordovician|||||Upper Ordovician|||||40|313|WA|No|40837|40837|P.Lehmann|20-JAN-84|||Includes conodonts of the Pygodus serra Zone (Smith et al., 2013b) (late Sandbian). Maximum thickness in Patience 2.|Coarsely crystalline, orange-brown to red-brown, clear to translucent halite interbedded with reddish-brown partly dolomitic claystone.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Minnamonica Monzogranite|35239|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Split Rock Supersuite|68672|Mesoarchean||||intrusion|Mesoarchean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets.|Quartz and K-feldspar porphyritic muscovite(-biotite) monzogranite; fine- to coarse-grained; massive to weakly foliated.|acid intrusive rock|||Y||17-JAN-23
Minnie Creek Granodiorite|31965|Minnie Creek granodiorite|11935|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Minnie Creek Suite|74108|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||?Walter M.R., Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Shown as -Pgbr, -Pgvl, -Pglb, -Pgbs & part of -Pgbt on Mount Phillips and -Pg on Mount Egerton 1:250k map sheets.||acid intrusive rock|||Y||17-JAN-23
Minnie Creek Suite|74108|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Statherian|||||Orosirian|1800|||||||No|24197||||||Also see Minnie Creek Supersuite. Example of the Cullen Association. Age: ~1800Ma. Geological Province: Gascoyne Province.|||||Y||17-JAN-23
Minyari Granite|31905|||||Yes|Formation, beds|Formal|STRATLEX Entry|Briefly described|||O'Callaghans Supersuite|31858|Neoproterozoic|633|13|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoproterozoic|633|13|isotopic, U/Pb-Pb/Pb ion probe|||||No|50436||||||Of the Minyari Group (O'Callaghans Supersuite).|Monzogranite to syenogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
Miralga Creek Member|32214|||||Yes|Member, phase|Formal|Resvd name published|Described|Euro Basalt|27151|||Archean||||deposition|Archean||||||||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755. For a different unit from the old Miralga Formation.|Pillowed tholeiitic basalts and interbedded cherts.|basic volcanic rock|||N||17-JAN-23
Miranda Member|27835|||||Yes|Member, phase|Formal|Resvd name published|Described|Darlot Formation|25872|||||||deposition|||||||||No|41199|||||||||||N||17-JAN-23
Miria Formation|11957|Miria Marl|11958|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Maastrichtian||||deposition|Maastrichtian||||||2.1||No|40144|||||||Predominantly calcareous pelagic deposits: low-energy marine-shelf calcarenite and calcisiltite.|carbonate sedimentary rock|||N||17-JAN-23
Mirrabooka Member|75368|||||Yes|Member, phase|Formal|Other new published name|Defined|Osborne Formation|14663|||Cenomanian||||deposition|Albian||||||160|WA|No|12759|12759|||||Not to be confused with Mirrabooka Formation in NSW. Shown as part of Coolyena Group. Perth Basin.|Sandstone, dark greenish brown, very poorly sorted, silty and richly glauconitic; with thin interbeds of siltstone and shale, dark green to black, glauconitic.|siliciclastic sedimentary rock|||N||17-JAN-23
Mirturtu Monzogranite|73625|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Mirturtu Suite|74764|Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|64408||Howard, H. (GSWA)|19-SEP-07|||Subdivided into 6 unnamed units. Within the Mirturtu Suite of the Pitjantjatjara Supersuite. See also geochron ages with misspelling Miturtu Monzogranite (2012), 1181+/-6 Ma; 1203+/-16 Ma, 1175+/-15 Ma.|Metamonzogranite, metagranodiorite, metaquartz-monzodiorite, charnockite; rapakivi granite; garnet coronas around mafic minerals; locally mylonitic.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Mirturtu Monzogranite - granodioritic augen gneiss|74445|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Mirturtu Monzogranite|73625|||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Hornblende-garnet granodioritic augen gneiss|high grade metamorphic rock|||Y||17-JAN-23
Mirturtu Suite|74764|Mirturtu Monzogranite|73625|||Yes|Group, Suite|Formal|Variation of published name|Described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1176|6|isotopic, U/Pb-Pb/Pb ion probe||Mesoproterozoic|1183|9|isotopic, U/Pb-Pb/Pb ion probe|||||No|67372||Howard, H. (GSWA)|07-OCT-08|||To be published: Howard, H. M., Smithies, R. H., Pirajno, F., Skwarnecki, M. S. 2008. BATES, W. A. Sheet 4646: Western Australia Geological Survey, 1:100 000 Geological Series. Version 2 -- expected date of publication is December 2008.|Massive to strongly foliated granulite facies rocks of granitic protolith with compositions dominated by monzogranite but with compositional range of quartzo-monzodiorite to syenogranite.|metamorphosed acid igneous rock|metamorphosed igneous rock||Y||17-JAN-23
Mission Gabbro|80424|Mission Intrusion|78641|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Neoarchean|2665||inferred||Neoarchean|2702||inferred|||||No|||Sapkota, J. (GSWA)|31-JAN-18|||Map Sheet = Norseman. This unit is a revision of the Mission Intrusion as the previous usage does not comply with current nomenclature protocols. To be published in GSWA series map release 2018 and explanatory notes, 2018-2020. See also GSWA ENS: SAPKOTA, J (partial report), Mission Gabbro (A-_ms-og): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Differentiated gabbroic sill; includes peridotite and pyroxenite seggregations; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Mission Group|11971|||||Yes|Group, Suite|Formal|Other new published name|Described|Bentley Supergroup|1491|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|30944||||||Bentley Basin. Musgrave Region. Not related to Mission Basalt.|Vesicular and amygdaloidal basalt and basaltic andesite, interlayered with fine- to coarse-grained siliciclastic rocks and minor dolomite, chert, and microbialite|sedimentary rock|igneous volcanic rock||N||05-OCT-23
Missouri Basalt|23801|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Archean||||eruption|Archean||||||1500||No|42221||Witt W.K.|29-AUG-88|||Previously considered part of the Pole Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group. The Missouri Basalt lies within the Davyhurst and Bardoc 1:100K map sheets areas.|Tholeiitic basalt and intercalated subordinate high-magnesium basalt, plagioclase-phyric basalt; massive to pillowed; metamorphosed; fine- to medium-grained amphibolite, typically foliated.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Mistico Formation|22353|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|61217||MacGeehan P.G.|24-JAN-89|||Not known if published by originator? PP 3/7/06.|||||N||17-JAN-23
Mitchell Porphyry|36988|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2678|5|isotopic, U/Pb|eruption|Archean|2678|5|isotopic, U/Pb|||||No|23470||||||Age: 2678 +/- 5Ma|||||U||17-JAN-23
Mittiwali Member|11996|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|32164|||||||||||N||17-JAN-23
Mokadine Formation|12027|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Coomberdale Subgroup|4593|||Proterozoic||||deposition|Proterozoic|||||||WA|No|36872|36293||||||Arkose with sandstone, siltstone, chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Molecap Greensand|26035|Molecap Greenstone Member|25249|||Yes|Formation, beds|Formal|Variation of published name|Defined|Coolyena Group|4565|||Santonian||||deposition|Turonian||||||80|WA|No|34112|36293|||||Defined Fairbridge (1953).|Glauconitic sand, sandstone, clay, minor phosphatic nodules|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Mondana Monzogranite|41171|Mondana Adamellite|28208|||Yes|Formation, beds|Formal|Variation of published name|Described|Corunna Downs Granitoid Complex|34394|Split Rock Supersuite|68672|Mesoarchean||||intrusion|Paleoarchean|3317|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|50381||||||Incorrectly placed in Emu Pool Supersuite in GSWA Record 2006/15 (Table 2 p8). Intruded both Triberton Granodiorite and Boobina Porphyry. Age: 3317+/-2Ma (Barley & Pickard, 1999).|Massive leucocratic monzogranite; very fine- to medium-grained; quartz-rich, minor biotite; equigranular to sparsely feldspar-phyric; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Monday Hill Adamellite|12086|Monday Hill adamellite|12088|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|40775||||||||acid intrusive rock|||Y||17-JAN-23
Mondooma Granite|12089|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Orosirian|1850|||magmatic crystallisation|Orosirian|1862|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|30525|||||||Foliated quartz-phyric biotite metamicromonzogranite with minor metasyenogranite and metagranodiorite.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Mongoloo Sandstone|12101|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40466||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Monkey Yard Tonalite|31885|Monkey Yard|29802|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tickalara Metamorphics|18130|Dougalls Suite|24927|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||||||Dixon Range 1:250 000 sheet area (east Kimberley region).|Foliated and metamorphosed hornblende-biotite(-epidote) tonalite; inclusions of epidote amphibolite|acid intrusive rock|||Y||17-JAN-23
Mons Cupri Dacite Member|73590|Mons Cupri Volcanics|26038|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Red Hill Volcanics|37709|||Mesoarchean|2991|12|isotopic, U/Pb-Pb/Pb ion probe|eruption|Mesoarchean|2991|12|isotopic, U/Pb-Pb/Pb ion probe|||||No|63441||||||Within the Whim Creek Group, De Grey Supergroup. Red Hill Volcanics and this dacite member were formerly known as Mons Cupri Volcanics. Intrudes Red Hill Volcanics.  Age Mons Cupri Volcanics: SHRIMP U-Pb Zircon age of 2991+/-12 Ma (Barley et al 1994). Interpreted to be a member of Red Hill Volcanics of the Whim Creek Group (GSWA Mar06).|Dark grey dacite, wholly coherent and contains: a spherulitic matrix indicative of high temperature devitrification of volcanic glass; plagioclase phenocrysts and abundant, cherty fragments.|acid intrusive rock|||Y||17-JAN-23
Mons carbonatite|83846|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Proterozoic|||||Proterozoic||||||||No|||||||Part of Nimy Resources Mons Nickel Project. Discussed in stock exchange announcements. Suspected carbonatite however not yet drilled. Murchison Domain, Youanmi Terrane, Yilgarn Craton.|Carbonatite with rare earths.|exotic composition igneous rock|||Y||12-SEP-23
Montara Formation|12126|||||Yes|Formation, beds|Formal|Other new published name|Described|Swan Group|17573|||Oxfordian||||deposition|Callovian||||deposition||||No|42053|||||||Retrogradational deltaic sandstones and transgressive marine shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Montejinni Limestone|12130|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ordian-Early Templetonian|||biozone|deposition|Ordian-Early Templetonian|||biozone||150|151.2|NT|Yes|44965|60684|Kruse, after Traves (1955)||Kruse, P.D.|06-AUG-92|Lateral correlative of Tindall Limestone and Gum Ridge Formation.|Fossiliferous limestone, dolostone, calcareous mudstone; minor fine-grained sandstone and siliciclastic mudstone; chert and nodular evaporitic pseudomorphs; silicified outcrop, recessive.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Montescue Group|12134|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|41028|||||||||||N||17-JAN-23
Monument Granite|73396|Monument Monzogranite|39350|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||intrusion|Archean||||||||No|65180||Groenewald, B. (GSWA)|08-JUN-07||||Hornblende- or biotite-bearing monzogranite to granodiorite; metamorphosed|acid intrusive rock|||Y|I-type|20-MAY-23
Moodagara Dolerite|80583|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Orosirian|2008||||Rhyacian|2208||inferred|||||No|72712||Wingate, M.T.D. (GSWA)|03-JUL-18|||Name from Moodagara Bore, on Rocklea 100k. Distribution: Newman, Mount Bruce, Turee Creek, Wyloo 250k. The Moodagara Dolerite is a suite of west-northwest trending dolerite dykes that pre-date the Panhandle Dolerite, and are equivalent to the unnamed P_d4 dyke suite of Tyler (1990). See also GSWA ENS: Wingate, MTD (partial report), Moodagara Dolerite (P_-_ma-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite; mainly west-northwest trending dykes.|basic intrusive rock|||Y||17-JAN-23
Moodini Supersuite|79174|Moodini granite|81348|||Yes|Supergroup|Formal|Resvd name published|Described|||||Stenian|1125|7|isotopic, U/Pb-Pb/Pb ion probe||Stenian|1181|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|70831||Spaggiari, C. (GSWA)|19-AUG-15|||Eucla SH52-14. In a drillhole through Eucla Basin. Granitic and gabbroic rocks. To be published=GSWA Record, September 2015. Age range from Wingate et al. 2015 in GSWA Record2015/10. Of Coompana Province.|Granitic and gabbroic rocks.High-K-Mg shoshonitic magmas that are bimodal; includes equigranular to porphyritic, massive syenogranites, shoshonites and monzogranites that form thin sheets.|acid intrusive rock|basic intrusive rock||Y||17-JAN-23
Moodogara Dyke Suite|80088|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic|2208||inferred|||||No|70795|||||||Dolerite;  mainly west-northwest trending dykes|basic intrusive rock|||Y||17-JAN-23
Moogie Metamorphics|36888|Morrissey Metamorphic Suite|27277|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Rhyacian|2125||||Rhyacian|2240|||||||No|23527||||||Previously partly included in Morrissey Metamorphic Suite. Age: >2000Ma. Hosts W-rich mineralisation at Hectors Bore. Probably a time equivalent to the Shingle Creek Group.|Pelitic and psammitic schist, quartzite, calc-silicate gneiss, marble, amphibolite, ultramafic schist, and metamorphosed banded iron-formation.|metasedimentary siliciclastic rock|metasedimentary carbonate rock|foreland|N||17-JAN-23
Moogooloo Sandstone|12179|Moogooloo Division""|42394|||Yes|Formation, beds|Formal|Other new published name|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian|||||30|170|WA|No|44344|45016|||||See also Lexicon. Defn on Tech File F/50-13. See also Moogaloo Sandstone. Type section is located at the South end of Gooch Range, 23d51m10sS, 114d48m30sE.|Quartzose or feldspathic sandstone and siltstone; minor conglomerate, claystone, and carbonaceous shale.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Moogooree Limestone|12181|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Tournaisian||||deposition|Tournaisian||||||400|WA|No|44537|45015|||||See also Lexicon. SG50-1. Richly fossiliferous. Max. thickness: 1260ft.|Dominantly limestone and dolomite with minor siliciclastic and evaporative horizons.|carbonate sedimentary rock|||N||17-JAN-23
Moola Bulla Formation|12182|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Orosirian|1800|||deposition|Orosirian|1843|||||3000|WA|No|44325|45047||||||Lithic quartz sandstone and granule to pebble conglomerate with minor argillite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mooline Formation|67859|||||Yes|Formation, beds|Formal|Other new published name|Described|Capricorn Group|3558|||Statherian||||deposition|Orosirian|1801|14|isotopic, U/Pb-Pb/Pb ion probe||1100|2500|WA|No|24544|||||||Thin- to very thick-bedded, fine to very coarse-grained sandstone, siltstone, conglomerate, dolostone, dolomitic siltstone, and minor felsic volcaniclastic sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mooloogool Group|22371|Mooloogool Subgroup|29920|||Yes|Group, Suite|Formal|Resvd name published|Described|||||Paleoproterozoic|1785||inferred, overlying unit||Paleoproterozoic|2170||inferred, underlying unit|||||No|23586||Pirajno F.|19-OCT-94|||SG50-12, Glengarry.  In the Yerrida Basin. Defined as Mooloogool Subgroup and subsequently upgraded to Group.|Terrigenous clastic, volcaniclastic, mafic extrusive and intrusive rocks.|siliciclastic sedimentary rock|basic volcanic rock|foreland|N||17-JAN-23
Moolyella Monzogranite|38010|Moolyella Adamellite|27200|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Split Rock Supersuite|68672|Mesoarchean|2830|||intrusion|Mesoarchean|2831|11|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|24110||||||c. 2830 Ma. Formerly of  parent Mount Edgar Granitoid Complex.|Muscovite-biotite monzogranite, medium-grained, massive to weakly foliated; pegmatite with cassiterite, tantalite, beryl and zinnwaldite|acid intrusive rock|||Y||17-JAN-23
Moolyella Suite|12201|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Archean|||||Archean||||||||No|41938||||||In the centre of the gneiss complex of the Mount Edgar Granitoid Complex.|||||Y||17-JAN-23
Moonera igneous complex|83849|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Based on the Moonera Prospect geophysical feature, a large circular magnetic anomaly initially interpreted to be a carbonatite, ultrabasic or mafic intrusive complex, now drilled into altered felsic to intermediate intrusives. 
https://sensore.com/wp-content/uploads/2022/09/20220920-Drilling-Identifies-Igneous-Complex-with-Alteration-Styles-Associated-with-Large-Copper-Gold-Systems.pdf|Multiphase, strongly altered felsic intrusive rock sequence comprising monzodiorite, syenogranite, granite and granodiorite. Magnetite, hematite, albite, sericite, chlorite, epidote, and pyrite alteration encountered in syenogranite and monzodiorite.|unknown|||Y||12-SEP-23
Moonlight Valley Tillite|25260|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Duerdin Group|5760|||Ediacaran|610||inferred|deposition|Cryogenian|793|30|isotopic, Rb/Sr|maximum depositional age||280|WA|No|44317|48938|||||Ruby Plains 1:100 000 sheet area.   Age: c. 610Ma. Possibly equivalent to other diamictite of Duerdin Group. Age: 793 +/- 30Ma (Rb-Sr) and 610Ma. Correlated with Elatina Formation. Said to include dolostone in Auvergne and Waterloo areas. Wolfe Basin.|Massive matrix-supported polymictic pebble to boulder conglomerate; larger clasts striated; poorly sorted massive sandstone. Diamictite, dolostone "cap".|siliciclastic sedimentary rock|||N||17-JAN-23
Moonyoonooka Sandstone|12268|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Chapman Group|25841|||Aalenian||||deposition|Lower Jurassic||||||34|WA|No|48857|36293||||||White, grey, brown or red, fine- to very fine-grained feldspathic sandstone and arkose; carbonaceous shale and conglomerate lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Moora Group|12271|Moora Beds|12270|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Neoproterozoic|||||Mesoproterozoic|1390|140|isotopic, Rb/Sr||||WA|No|45965|36293|||||See also Lexicon. Age: 1000 Ma.|Sandstone, siltstone; basalt (in lower part), and dolomite and silicified dolomite (in upper part)|siliciclastic sedimentary rock|igneous volcanic rock||N||22-MAY-23
Moorarie Supersuite|33440|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Statherian|1776|8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1817|11|isotopic, U/Pb-Pb/Pb ion probe||5000|10000||No|44927||Tyler I.|09-NOV-98|||Gascoyne Province. Intrudes Glenburgh Terrane. About 50 granites from the Supersuite have been dated by SHRIMP U/Pb zircon techniques. Hosts uraniferous and base metal quartz vein mineralisation with Cu-Pb sulfides at Mundong Well; also with W-skarn mineralisation in the N of the Province.|Monzogranite, syenogranite, granodiorite and tonalite, diorite, gneissic to schistose granodiorite to monzogranite; local schist, amphibolite, calc-silicate and quartzite. Minor gabbro.|acid intrusive rock|metamorphosed acid igneous rock|collisional zone|Y||17-JAN-23
Moore Porphyry|36989|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2669|7||eruption|Archean|2669|7||||||No|23470||||||Age: 2669 +/-7 Ma|||||U||17-JAN-23
Moorhead Formation|12284|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Stockton Group|26911|||Sakmarian||||deposition|Asselian||||||230||No|42711|42711|||||(Le Blanc Smith, 1993). In the Collie Basin. See also Moorehead Fm.|Laminated claystone and subordinate thin beds of buff-coloured siltstone, fine-grained sandstone and rare limestone lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Mopoke Member|39514|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kylena Formation|34040|||Neoarchean|2727|||deposition|Neoarchean|2735|||||||No|65726|65829|Williams, I.|23-OCT-03||||Siltstone/mudstone with calcilutite in cm-thick beds; local basal stromatolitic carbonate, intraformational conglomerate or lithic sandstone. Spar, dolospar and radiaxial calcite are conspicuous.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Morangup Hill laterites|68140|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Late Miocene|||||Late Miocene||||||||No|60901||||||Mentioned.|||||N||17-JAN-23
Morawa Lavas|12315|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Billeranga Subgroup|25785|||Ectasian|1320|||intrusion|Ectasian|1360|||||||No|36872||||||See also Morawa Lava and Morawa Lava basalt.|||||N||17-JAN-23
Morelands Group|12323|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|37373||||||Probably replaces Morelands Formation?|||||N||17-JAN-23
Morgan Island Epiclastic|35678|Morgans Island Epiclastic|35664|||Yes|Formation, beds|Formal|Variation of published name|Described|Black Flag Group|28372||||||||||||||||No|23137||||||Missing the Formation part. See also Morgans Island Epiclastic Formation.||basic intrusive rock|||N|I-type|17-JAN-23
Mornington Volcanics|26753|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Neoproterozoic||||eruption|Neoproterozoic||||||||No|39796||||||See also Traves (1955) in WA Lexicon.|Lateritisation & bauxite.||||N||17-JAN-23
Mortigup Granodiorite|12360|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||intrusion|Archean||||||||No|38513||||||||acid intrusive rock|||Y||17-JAN-23
Mortimer Hills Pegmatite|12362|Mortimer Hills pegmatite|12363|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|40303|||||||||||Y||17-JAN-23
Mosquito Creek Formation|12410|Mosquito Creek Beds|12409|||Yes|Formation, beds|Formal|Variation of published name|Defined|Nullagine Group|69694|||Mesoarchean|2905|||deposition|Mesoarchean|2926|29||maximum depositional age||5000|WA|No|31853|39426|||||Formerly of the De Grey Group; now [2006] part of Nullagine Group in the De Grey Supergroup. In the eastern Pilbara Craton. Estimated to be ~5km thick.|Interlayered psammite and pelite; graded bedding and local cross-bedding preserved; includes metamorphosed turbidite deposits|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||22-MAY-23
Mosquito Well Conglomerate Member|80125|Mosquito Well Conglomerate|77948|||Yes|Member, phase|Formal|Other new published name|Briefly described|Vivien Formation|77944|||Neoarchean|2660||inferred||Neoarchean|2690||inferred|||||No|71212||||||Reserved as the Mosquito Well Conglomerate.|Conglomerate with interbedded sandstone; common mafic clasts; metamorphosed|metasedimentary siliciclastic rock|||N||17-JAN-23
Mosswood Formation|34556|Mosswood|22393|||Yes|Formation, beds|Formal|Resvd name published|Defined|Stockton Group|26911|||Sakmarian||||deposition|Asselian||||||||No|22820|22820||||||Dark, grey-brown to black argillaceous rocks, with subordinate siltstone and fine-grained sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Motherin Monzogranite|38073|Motherin Granodiorite|35241|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Callina Supersuite|68674|Paleoarchean||||intrusion|Paleoarchean|3475|||||||No|24327||||||Reserved as Motherin Granodiorite. East Pilbara Terrane.|Interleaved metamonzogranite, metagranodiorite, gneiss, and pegmatite; moderately to strongly foliated; intruded by abundant sheets of massive to weakly foliated muscovite-bearing metamonzogranite and pegmatite|acid intrusive rock|high grade metamorphic rock||Y||23-MAY-23
Mougooderra Formation|22395|||||Yes|Formation, beds|Formal|Resvd name published|Described|Glen Group|74811|||Neoarchean||||deposition|Neoarchean|2746||inferred, lithostratigraphic correlation|||||No|44149||K.P.Watkins, A.H.Hickman, R.Davy|21-OCT-86|||Fully described GSWA Bull 137 p88 as Moogooderra Formation, but this appears to be a misspelling. See also misspelt Mougoodera Formation, briefly described. Named after Mougooderra Hill, Badja 1:100k sheet area. Type area Minjar Hill, 28deg51'S116deg58'E. Age <2793 Ma, but probably <2735 Ma as it has Glen Group relations.|Metasandstone interbedded with polymictic metaconglomerate, metasiltstone and metamorphosed banded iron-formation; minor volcanic units; locally strongly deformed; common andalusite.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Abbott lamproite|12436|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mount Ada Basalt|26045|||||Yes|Formation, beds|Formal|Other new published name|Defined|Coongan Subgroup|69683|||Paleoarchean|3430||isotopic, U/Pb-Pb/Pb ion probe|eruption|Paleoarchean|3469|3|isotopic, U/Pb-Pb/Pb ion probe||500|2500|WA|No|31309|31309|||||Of the Warrawoona Group (Pilbara Supergroup). Formerly of Talga Talga Subgroup.  Intruded by Coppin Gap Granodiorite and Munganbrina Monzonite. Age: c.3.48-3.43Ga; 3522+/-13 Ma. In the eastern Pilbara Craton.|Dominantly pillowed metabasalt, metamorphosed pyroxene spinifex-textured komatiitic basalt, and thin horizons of metasedimentary chert and felsic volcaniclastic rocks; numerous dolerite and gabbro sills.|metamorphosed basic igneous rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Mount Aloysius Complex|22396|||||Yes|Group, Suite|Formal|Resvd name published|Redefined|||||Mesoproterozoic|1200||isotopic, U/Pb-Pb/Pb ion probe||Mesoproterozoic|1578|20|isotopic, Rb/Sr||||WA|Yes|61339||Stewart A.J.|28-MAR-94|WA SNSC|30-APR-94|Giles Complex, Musgrave Block. Sheets 4645, 4646. Approved defn card held [CEB Jul 2002]. Defn revised 29/3/96 to show enlarged distribution - by A.Y. Glikson. Desc publ. 1996, AGSO Bull. 239, p26 etc.|Massive to weakly layered felsic granulite; leucogranulite after syenite; mafic granulite; granulite grade orthogneiss and paragneiss; metasedimentary rocks including quartzite, pelitic gneiss, calc-silicate granulite, migmatite.|high grade metamorphic rock|||N||17-JAN-23
Mount Amy Granite|12457|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Paleoproterozoic|1860|||intrusion|Paleoproterozoic|1860|||||||No|30525|||||||Foliated weakly porphyritic leucocratic biotite muscovite metasyenogranite, aplite, pegmatite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Mount Andrew Migmatite|12459|Mount Andrew Migmatites|27202|||Yes|Group, Suite|Formal|Unknown or process pending|Described|||Biranup Supersuite|33038|Proterozoic|||||Proterozoic||||||||No|36876||||||See also Mount Andrew Migmatite Complex.|||||N||17-JAN-23
Mount Augustus Sandstone|27203|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Calymmian|1465||inferred|deposition|Statherian|1680||inferred||1150||WA|No|29916|40089|||||Maximum age from detrital zircons. Mount Augustus Basin. See also Mount Augustus Formation.|Feldspathic sandstone, pebbly sandstone, and conglomerate; minor siltstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mount Barren Group|27840|Mount Barren beds|12499|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Mesoproterozoic|||||Paleoproterozoic|1693|4||diagenesis|1200|||No|38764||||||Age of 1693+/-4Ma (Vallini et al 2005), interpreted as early diagenesis date. A variety of ages exist in the bibliographic references. Supersedes Mount Barren Formation also. Peak thermal metamorphism ~1205 Ma (RefID 65487, p24), further metamorphism event proposed at 1027 +/-8 Ma (RefID 64577). May be lateral equivalent of Woodline Formation.|Quartzite, sandstone, dolostone, conglomerate, phyllite, pelitic and psammitic schist|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Behn Conglomerate|12507|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Famennian||||deposition|Famennian||||||||No|42860|||||||||||N||17-JAN-23
Mount Belches Formation|35605|Mount Belches beds|12508|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Neoarchean|2666|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Neoarchean|2666|5|isotopic, U/Pb-Pb/Pb ion probe|||2500||No|23582|23584|Painter M.|20-SEP-00|||For Mount Belches 3335 1:100 000 sheet explanatory notes.|Wacke and mudstone, typically biotitic; rare banded iron-formation and pebbly sandstone beds; generally weakly metamorphosed but locally strongly hornfelsed|metasedimentary siliciclastic rock|||N||17-JAN-23
Mount Bertram Sandstone|26047|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kuniandi Group|25981|||Ediacaran||||deposition|Ediacaran|610|||||180|WA|No|44397|48927|||||In the Louisa Basin. Age: c.610Ma.|Purple to grey fine micaceous and ferruginous well sorted sandstone, and purple fissile shale and siltstone increasing towards the base; oscillation ripples, graded bedding, cross bedding, and clay pellet cavities|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mount Billroth Supersuite|68670|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Mesoarchean|3165|||intrusion|Mesoarchean|3200|||||||No|64654||Van Kranendonk, M.  (GSWA)|04-APR-05|||To be used on the MOUNT BILLROTH mapsheet; nearest town is Dampier. In refid 65828 (2006) Appendix 2 shows this as replacing the Kurrana Granitic Complex as the parent of Golden Eagle Orthogneiss, according to the GSWA databases.|Monzogranite to granodiorite.|acid intrusive rock|||Y||17-JAN-23
Mount Boggola Formation|67853|||||Yes|Formation, beds|Informal|Variation of published name|Described|Wyloo Group|20715|||Orosirian|1828|5|isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1829|5||||||No|24544||||||Of Upper Wyloo Group. Volcanic rocks which divide the Ashburton Formation. Age: 1828+/-5 Ma. Geological Province: Ashburton Province.See also Mount Boggola Volcanics for source of min age..||acid volcanic rock|||N||17-JAN-23
Mount Boreas Adamellite|35643|Boreas Adamellite|2323|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Siderian||||intrusion|Siderian|2480|30||||||No|23281||||||Max Age: 2480 (+/-) 30 Ma (Roddick and Libby, 1995).  Probably updated again since 1996?||acid intrusive rock|||Y||17-JAN-23
Mount Bruce Supergroup|12546|||||Yes|Supergroup|Formal|Variation of published name|Redefined|||||Paleoproterozoic|2430||||Neoarchean|2775|||||10000|WA|No|44729|35976|||||Redefined 1979. Probably only in WA [previously shown as in NT and SA also - this was probably a mistake from regional references]. Max. thickness: 10km.|A cover sequence of dominantly basaltic and sedimentary rocks of very low metamorphic grade unconformably overlying the granite-greenstone terranes.|basic volcanic rock|sedimentary rock|passive margin|N||17-JAN-23
Mount Cassiterite Pegmatite Group|39759|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|24193|||||||||||Y||17-JAN-23
Mount Cedric Lamproite|12573|Mount Cedric lamproite|12574|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mount Chandler Sandstone|12576|Mount Chandler Quartzite|28789|||Yes|Formation, beds|Formal|Unknown or process pending|Redefined|Munda Group|34767|||Ordovician|450|||deposition|Ordovician|457||||||SA|No|44535|38329|||||Redefined 1982, 1997.|Sandstone, well rounded, fine to medium-grained quartz; sandstone, feldspathic, burrowed; siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Christine Granite|41460|Mount Christie Granitoid|39440|||Yes|Formation, beds|Formal|Variation of published name|Described|||Kevins Dam Suite|31898|Orosirian|1808|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1817|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|50437||||||Of the Sally Downs Supersuite. Geological Province: Kimberley Region. In the Lamboo Complex. GSWA used Mount Christine Granitoid for some years (~1998 - 2002), but now prefer Mount Christine Granite [advice from GSWA Dec 2013].|Coarsely porphyritic, medium-grained biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Mount Clifford Komatiite|79016|Mount Clifford peridotites|12587|||Yes|Formation, beds|Formal|Resvd name published|Described|Marshall Pool Subgroup|79020|||Neoarchean|2680||inferred|eruption|Neoarchean|2726||inferred|||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Weebo. Nearest Town = Leonora. Briefdescription = Consists of komatiite and komatiitic basalt with relict cumulate, olivine spinifex and pyroxene spinifex textures. This is a formation level unit. I wish to redefine and formalise Mount Clifford peridotites that is in informal usage in the GA database.|Komatiite and komatiitic basalt; relict cumulate, olivine-spinifex and pyroxene-spinifex texture; metamorphosed with locally well-developed schistosity.|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
Mount Close Chert Member|23815|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Antrim Plateau Volcanics|488|||Early Cambrian||||deposition|Early Cambrian||||||||No|41840||Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins. In Ord and Bonaparte Basins.|Stromatolitic limestone and matrix-supported basalt breccia, silicified at the surface.|carbonate sedimentary rock|basic volcanic rock||N||17-JAN-23
Mount Corlac Ultramafics|12593|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|41066|||||||||||N||17-JAN-23
Mount Crofton Granite|12602|||||Yes|Formation, beds|Formal|Other new published name|Described|||O'Callaghans Supersuite|31858|Cryogenian|640|8|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Cryogenian|654|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|30484||||||Within O'Callaghans Supersuite. Previously included in Mount Crofton Suite. U-Pb SHRIMP dating done on titanite due to high to extremely high U levels in zircon, resulting in crystal damage and Pb loss.|Equigranular medium grained, grading to coarse and porphyritic, biotite monzogranite and syenogranite, with rare granophyre|acid intrusive rock|||Y|I-type|17-JAN-23
Mount Danvers Granodiorite|12618|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Moorarie Supersuite|33440|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|42260||||||Gascoyne Province. Included in -Pg on Wyloo map sheet.  Parent Boolaloo Supersuite discontinued by GSWA; now part of Moorarie Supersuite (S.Sheppard, pers. comm., 2008)|Biotite-muscovite adamellite and granite|acid intrusive rock|||Y||17-JAN-23
Mount Disaster Porphyry|27842|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|30525||||||Intrudes Whitewater Volcanics.|Foliated, coarse, pink-grey porphyritic biotite metamicromonzogranite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Mount Dove Complex|12642|||||Yes|Group, Suite|Formal|Other new published name|Mentioned||||||||||||||||||No|41594|||||||||||N||17-JAN-23
Mount Dugel paragneiss|12660|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described||||||||||||||||||No|41942||||||See also Mount Dugel metapelite.|||||N||17-JAN-23
Mount Ellis Gabbro|22413|Mount Ellis Intrusion|78642|||Yes|Formation, beds|Reserved|Variation of published name|Described|||||Neoarchean|2692||inferred|intrusion|Neoarchean|2702||inferred|||||No|71270||Witt, W. K. (1987), De Paoli, M. (GSWA),  (25-FEB-2016)|02-OCT-87|||Briefly described in Swager et al (1990) Table 1 p6 as Mount Ellis Sill, then Mount Ellis Intrusion, now (2016) original reservation reinstated. It forms part of the Eastern Goldfields Superterrane of the Yilgarn Craton. Mount Ellis Gabbro lies within Bardoc and part way into the Kalgoorlie 1:100K GSWA map series sheets. To be published = GSWA digital release 2016. See also GSWA ENS: Wyche, S and De Paoli, MC (partial report), Mount Ellis Gabbro (A-_el-xo-a): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Gabbro, leucogabbro, iron-rich gabbro, and pyroxenite; metamorphosed. Locally displays granophyric segregations and pyroxenitic or dunitic basal segregations.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Mount Fairbairn Monzogranite|22415|Mount Fairbairn Granite|41461|||Yes|Formation, beds|Formal|Resvd name published|Described|||Syenite Camp Suite|31897|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|44231||Sheppard S.|23-FEB-95|||East Kimberley region. Kimberley Province.  Of the Sally Downs supersuite. Age: 1835-1805Ma. Part of the Bow River batholith. Of Syenite Suite [advice from GSWA Dec 2013].|Coarse to fine grained locally porphyritic partly recrystallised biotite monzogranite; associated with gabbro and locally rich in mafic inclusions|acid intrusive rock|||Y||17-JAN-23
Mount Falconer Adamellite|12706|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|32010||||||||acid intrusive rock|||Y||17-JAN-23
Mount Fingall Dolerite|12710|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|40005||||||||basic intrusive rock|||Y||17-JAN-23
Mount Forster Sandstone|28200|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran|||||40|150|WA|No|44317|45140|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidian age. Of the Albert Edward Group.|Cross-bedded, mainly medium grained sublithic and quartz sandstone with minor shale and siltstone, and iron-stained pebbly sublithic sandstone and conglomerate near base|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mount Fouracre Basalt|79019|||||Yes|Formation, beds|Formal|Resvd name published|Described|Marshall Pool Subgroup|79020|||Neoarchean|2680||inferred|eruption|Neoarchean|2726||inferred|||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Wilbah. Nearest Town = Leonora. Consists of basalt with minor komatiitic basalt. The basalt is locally vesicular and amygdaloidal. This is a formation level unit.|Basalt; amygdaloidal, aphyric, metamorphosed; komatiitic basalt; relict pyroxene-spinifex texture; metamorphosed; mafic schist derived from basalt.|basic volcanic rock|||N||17-JAN-23
Mount Gardner Adamellite|12730|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|33272||||||||acid intrusive rock|||Y||17-JAN-23
Mount Gibson Formation|78982|Mount Gibson Group|75930|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Southern Cross Supergroup|83577|||Mesoarchean|2929||inferred|deposition|Mesoarchean|2934||inferred|||||No|68698||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Mount Gibson Hsd, Mount Gibson 1:100k sheet. Type area: Hornet and Orion mines. Stratigraphic relations unknown in 2015, probably unconformably overlain by Polelle Group units. Previously included in Murchison Supergroup, but now included in new underlying Southern Cross Supergroup [advice from Tim Ivanic, Nov 2022].|Felsic volcanic and volcaniclastic rocks varying from rhyolitic to dacitic compositions; metamorphosed|acid volcanic rock|metamorphosed acid igneous rock||N||06-JUN-23
Mount Gibson Iron Formation|78787|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|63153||||||Shows massive carbonate replacement of chert (Lascelles, 2006, RefID 63153). Name probably abandoned and unit reduced to an unnamed BIF of the Windaning Formation.|||||N||08-AUG-23
Mount Glasse formation|70608|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||deposition|||||||||No|61898||||||Only this informal version is recorded.|||||N||17-JAN-23
Mount Goode Basalt|35641|Mount Goode Dunite|12758|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||eruption|Archean||||||||No|23281||||||Also referred to as Mount Goode Dunite.|Metamorphosed tholeiitic basalt and metamorphosed plagio-phyric tholeiitic basalt.|metamorphosed basic igneous rock|||N||17-JAN-23
Mount Goodwin Subgroup|75073|Mount Goodwin Formation|12760|||Yes|Subgroup|Formal|Variation of published name|Redefined|Kinmore Group|9623|||Olenekian|||||Changhsingian||||||||No|69452||Gorter, J. D. (Eni Australia), Nicoll, R.S. (GA)|19-MAR-09|||Rank proposed to be raised from Formation. Upper unit of the Kinmore Group. Composed of (base to top) Penguin Formation, Mairmull Formation, Ascalon Formation, Fishburn Formation (revision in prep. Mar 2009). Also published as such in 2013. See also Mount Goodwin Sub-group.|Shale, claystone, siltstone and minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Gratwick Granodiorite|12767|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|||||||WA|Yes|39444|39444|Lipple S.L. and Hickman A.H.|04-APR-74|WA SNSC|06-JAN-75||Leucogranodiorite, leucodiorite with amphibolite xenoliths.|acid intrusive rock|||Y||17-JAN-23
Mount Gregory Monzodiorite|68506|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3016|14||intrusion|Archean|3016|14||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Also, to be used on ROEBOURNE map sheet; nearest town Roebourne. Forms part of the Harding Granitic Complex. Intrudes Andover Intrusion which is genetically related.|Massive, medium- to coarse-grained monzodiorite; metamorphosed.|intermediate intrusive rock|||Y||17-JAN-23
Mount Gytha Lamproite|28798|Mount Gytha lamproite|12774|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mount Hall-Carlow Castle Complex|12779|||||Yes|Group, Suite|Formal|Unknown or process pending|Described||||||||||||||||||No|39697|||||||||||N||17-JAN-23
Mount Harris Basalt|12780|||||Yes|Formation, beds|Formal|Defined variation of published name|Redefined|Tjauwata Group|36772|||Stenian|1040|||eruption|Stenian|1080|||||2000|NT|Yes|48863|65256|||Kruse, P.D.|21-JAN-02|Type Locality: 24o40' 35.69S, 129o24' 50.91E (WGS 84).  Redefined by Edgoose, C.L. and Close, D.F. after Forman (1966). See also Mount Harris Volcanics. Intruded by veins of Walu Granite. At Mt Harris this basalt is thrust over Dean Quartzite.|Metamorphosed basalt, basaltic tuff, conglomerate, and quartzite|basic volcanic rock|metamorphic rock||N||24-MAY-23
Mount Herbert Gabbro|77867|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Leviathan Suite|77866|Neoarchean|||inferred|intrusion|Neoarchean|||inferred|||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Gabbro, metamorphosed. Formation within the Leviathan Suite. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Gabbro, metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Mount Holmes Gabbro|74896|||||Yes|Formation, beds|Formal|Other new published name|Described|||Giles Suite|74611|Mesoproterozoic|1070||isotopic, U/Pb-Pb/Pb ion probe|intrusion|Mesoproterozoic||||||||No|69152||Riganti, A. (GSWA)|12-NOV-08|||For use on map sheet  SH50-42841; nearest town is Sandstone.  Sill that extends for at least 400km in the central Yilgarn Craton (map sheets MUNJEROO, EVERETT CREEK and ATLEY 100k). Best exposures at Mount Holmes and 13km to the ESE of Sandstone. It has been dated at 1070 /-18 Ma, and was therefore assigned to the c. 1075Ma Warakurna Large Igneous Province (Giles Suite, Warakurna Supersuite).  To be published in the Central Yilgarn GIS package (2009 update), released by the GSWA; and in Wingate et al. (in prep., probably to be published in Australian Journal of Earth Sciences).|Gabbro sill with distinct magnetic signature; outcrops sporadically.|basic intrusive rock|||N||07-JUN-23
Mount House Group|12803|Mount House Beds|26762|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Ediacaran|610||||Cryogenian|670|||||540||No|44363|||||||Glacigene rocks; tillite, sandstone, siltstone and minor stromatolitic dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mount Hunt Sill|28800|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|41249|||||||||||Y||17-JAN-23
Mount Ibis Lamproite|12813|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mount James Subgroup|75712|Mount James Formation|27206|||Yes|Subgroup|Formal|Variation of published name|Described|Pooranoo Metamorphics|37649|||Statherian|1677||||Statherian|1782||||||WA|No|68521||||||Upgraded from Formation to Mount James Subgroup by Steve Sheppard, Simon Johnson GSWA. Advice from RH 28Oct08.|Quartzite, meta-arkosic sandstone to quartz-sericite phyllite, meta-quartz and metapolymict conglomerate, phyllite;pelitic and psammitic schist.|metasedimentary siliciclastic rock|||N||17-JAN-23
Mount Joanna Granodiorite|75716|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Champion, D.|20-JUL-10|||Archean granite in Duketon 1:250 000 sheet area. Used informally in AMIRA report and pmdCRC papers but not previously published.||acid intrusive rock|||N||17-JAN-23
Mount John Shale Member|12840|||||Yes|Member, phase|Formal|Other new published name|Defined|Wade Creek Formation|33982|||Mesoproterozoic||||deposition|Mesoproterozoic|1128|110|||||WA|No|44317|45047|||||Defn of Mount John Shale on Tech File SE/52-6.  Same as Mount John Member,  Mount John Shale. Are any still current? This name is Defined, but date is old? Need to confirm.|Grey-green siltstone, mudstone, and fine- to coarse-grained sandstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Mount Jope Supersequence|34373|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Neoarchean|2681||||Neoarchean|2725|||||||No|22682||||||2725-2681 Ma|||||N||17-JAN-23
Mount Joseph Migmatite|23821|||||Yes|Member, phase|Formal|Resvd name published|Described|Marboo Formation|23763|||Orosirian|1861|5|||Orosirian|1870|||||||No|42710||Griffin T.J., Tyler I.M.|24-AUG-89|||In the West Kimberley Marboo Formation forms part of this migmatite. Previously considered part of the Hooper Complex, now (2016), considered a member of the Marboo Formation|Psammitic and pelitic migmatite and granofels; (quartz-K-feldspar-plagioclase-biotite-sillimanite-muscovite-cordierite-garnet-andalusite) rock; anatectic granite|high grade metamorphic rock|||N||24-MAY-23
Mount Keith Granodiorite|12864|Western granite|19823|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Archean|2535|18|isotopic, Rb/Sr|intrusion|Archean|2689|17|isotopic, Rb/Sr||||WA|Yes|29784||Roddick J.C, Compston W, Durney D.W.|20-JAN-75|WA SNSC|15-JAN-75||Prekinematic granodiorite. Generally medium grained and massive textured though grain size locally variable.Contains rare 'basic' xenoliths and various acid dykes. Post-emplacement recrystallization and metamorphic textures visible in thin sections.|acid intrusive rock|||Y||17-JAN-23
Mount Kenneth Suite|75885|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||Annean Supersuite|74813|Mesoarchean|2811|7|isotopic, U/Pb-Pb/Pb ion probe||Mesoarchean|2815||isotopic, U/Pb-Pb/Pb ion probe||||WA|Yes|69626||Ivanic, T. (GSWA)|23-MAR-11|Hocking, R.|25-MAR-11|Tonalite, granodiorite and monzogranite plutons 5 km in diameter intrude into Norie Group, Boodanoo Suite, Meeline Suite units of the Murchison Domain. Three geochronological constraints now indicate consistent ages.|Metatonalitic rock with subordinate metagranodiorite and metamonzogranite; locally strongly deformed; typically weakly schistose. Metagranite, gneissose metagranodiorite, schistose metagranite, tonalite.|metamorphosed acid igneous rock|||Y||06-JUN-23
Mount Kinahan Sandstone|30208|Mount Parker Sandstone|13010|||Yes|Formation, beds|Formal|Resvd name published|Defined|Ruby Plains Group|30278|||Cryogenian||||deposition|Cryogenian||||||150|WA|Yes|43299|23621|Blake D.|26-MAR-96|Hocking, R.|22-APR-99|East Kimberley, Gordon Downs 1:250 000 sheet area.  Probably a correlative of Heavitree Quartzite and Bitter Springs Formation (Amadeus Basin).|Quartz sandstone, minor conglomerate; distinctive stromatolites present.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Kirk Formation|12871|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean|2687|3|isotopic, U/Pb|deposition|Archean|2714|5||||||No|30959||||||To become part of the Higginsville Subgroup, Kalgoorlie Group.|Basalt dominant; includes ultramafic and small amount sedimentary rocks; metamorphosed.|basic igneous rock|||N||17-JAN-23
Mount Leake Formation|31403|Mount Leake Sandstone|24402|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Earaheedy Group|27144|||Paleoproterozoic|1774|20|inferred|deposition|Paleoproterozoic|1785|11|isotopic, U/Pb-Pb/Pb ion probe|||50||No|43238|65419|||||Mount Leake outlier; straddles the Goodin Fault that separates Yerrida and Bryah Basins. Contains detrital zircon from sandstone aged 1785 +/- 11 Ma (U-Pb SHRIMP; Nelson, 1997). Considered a possible correlative of the Yelma Formation in 2009, but Yelma Fm now considered to be 1950-1970 Ma. (Johnson, 2013) RefID 69003.  [Is this unit still current? CEB Jul-2016]|Quartz sandstone, glauconitic in places, silicified stromatolitic carbonate, chert breccia and jasperoidal chert|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Mount Leonora Formation|79015|Mount Leonora chert|41123|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2753||inferred|deposition|Neoarchean|2817||inferred|||||No|70153||J. Sapkota (GSWA)|20-JAN-15|||Map Sheet = Leonora. Nearest Town = Leonora. Briefdescription = Consists of sedimentary rock (conglomerate to shale and chert) with minor interleaved volcanic rock. I wish to redefine the Mount Leonora chert that is already in the GA database but is informal and not current. Wheretobepublished = GSWA digital release (maps and explanatory notes).|Sedimentary rock with minor interleaved felsic volcanic rock; metamorphosed|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Mount Lucky Conglomerate|38644|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||deposition|Archean||||||||No|23786|||||||Conglomerate-arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Malcolm Granite|80040|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|67268||||||May not have been intended as a formal name. The rocks are shown simply as 'Granitic intrusions' on Outcrop Map 2: geology of Mount Malcolm in RefID 67268, GSWA Record 2011/18, the publication of a BSc Hons thesis.||acid intrusive rock|||Y||17-JAN-23
Mount Manning komatiite|12907|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||eruption|||||||||No|40302|||||||||||N||17-JAN-23
Mount Manypeaks granite|36130|Mount Manypeaks Adamellite|12909|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No|23514||||||Briefly described. Need confirmation of name Mount Manypeaks Granite?||acid intrusive rock|||Y||17-JAN-23
Mount McGrath Formation|12923|Mt McGrath Formation|13294|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Wyloo Group|20715|||Orosirian|1829|5|inferred, overlying unit|deposition|Orosirian|2007|16|inferred, underlying unit|||1200|WA|Yes|44729|43119|Horwitz R.C.|12-FEB-80|Johnstone, M.H.||See also Mt McGrath Formation.  Base age constrained by a 2007+/-16 Ma Pb/Pb baddeleyite age on a dyke cutting the underlying Cheela Springs Basalt.  Minimum age is more poorly constrained, probably around 2000 Ma. Overlying Duck Creek Dolomite is undated, and only the age of the Mount Boggola volcanic succession/Formation (1829+/-5 Ma), within the Ashburton Formation (~1805-1830Ma) above that provides constraint.|Ferruginous sandstone, conglomerate and pebbly sandstone; quartz sandstone, siltstone, dolomitic siltstone, and dolostone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||24-MAY-23
Mount McRae Shale|12926|||||Yes|Formation, beds|Formal|Other new published name|Defined|Hamersley Group|8005|||Paleoproterozoic|2494||inferred, lithostratigraphic correlation|deposition|Neoarchean|2505||inferred, lithostratigraphic correlation|||100|WA|No|44729|33544|||||See also misspelling McRae Shale. Age: c.2603 Ma. Ages from Trendall et al (2004), RefID 60706. At the top of the lower Hamersley Group.|Mudstone, siltstone, chert, iron-formation, and dolomite. Thin bands of shard-bearing volcanic ash in upper parts.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Mount McRae Shale and Mount Sylvia Formation|74449|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Hamersley Group|8005|||Paleoproterozoic||||deposition|Neoarchean||||||||No|72034|72034|||||informal unit, used by 1:1 million Surface Geology of Australia datasets to represent 2 thin formations. Also used in GSWA datasets.|Mudstone, siltstone, chert, banded iron-formation, and dolomite|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||25-MAY-23
Mount Minnie Group|29294|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Statherian||||deposition|Statherian|1800|||||2600||No|31393|||||||Quartz sandstone, conglomerate, siltstone and mudstone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||25-MAY-23
Mount Minnie-Mount Blair Supersequence|34389|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Briefly described|||||Statherian|1724||||Statherian|1771|||||||No|22682||||||Age: 1771-1724 Ma.|||||N||17-JAN-23
Mount Monger Intrusion|78643|Mount Monger Sill|36852|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Neoarchean|||||Neoarchean||||||||No|69152||||||Eastern Goldfields Superterrane, Yilgarn Craton.Still New in GSWA ENS, leave until it is 'reassessed'. Comment from Stephen Wyche: "Small gabbro unit on MOUNT BELCHES. Previously called Mount Monger Sill. If retained, will probably be called the Mount Monger Gabbro."|Gabbro; relict cumulate texture; metamorphosed.|metamorphosed basic igneous rock|||Y||17-JAN-23
Mount Murchison Quartzite|12953|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|41261|||||||||||N||17-JAN-23
Mount Narryer quartzite|12961|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Archean|||||Archean|3100|||||||No|41333|||||||||||N||17-JAN-23
Mount Negri Volcanics|12967|Negri Volcanics|13970|||Yes|Formation, beds|Formal|Other new published name|Defined|Bookingarra Group|29942|||Mesoarchean|2922||inferred, intrusive relationship|eruption|Mesoarchean|2940||inferred, structural relationship||100|500|WA|Yes|30766||||||Redefined as Negri Volcanics in 1979. Formerly of the Bookingarra Group. Now reverted to the name Mount Negri and reassigned as a member of the new Bookingarra Formation (GSWA Mar.06) of the De Grey Supergroup.  Age: 2920Ma. Restored to formation rank in 2016.| Basalt, komatiitic basalt, and basaltic andesite; local siliciclastic sedimentary rocks; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Mount Newman Member|23826|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Marra Mamba Iron Formation|11353|||Neoarchean|2596||inferred, lithostratigraphic correlation|deposition|Neoarchean|2598||inferred, lithostratigraphic correlation|||60||No|39589||R.C.Morris|01-APR-82|||Member of Marra Mamba Iron Formation, approved by Staines.~ 2600 Ma. SHRIMP age 2597+/-5 Ma. AJES 1998. Max & min ages  from Trendall et al (2004), RefID 60706.|Banded iron-formation, shale.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Mount North Lamproite|12980|Mount North lamproite|12981|||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Mount Nyulasy Granite|31792|Mount Nyalasy|29794|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||magmatic crystallisation|Orosirian|1859|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|43853||||||Lissadell 1:250 000 sheet area (east Kimberley region). 1859 +/- 3 Ma|Coarse-grained porphyritic biotite monzogranite and syenogranite with rapakivi-like texture; medium- to coarse-grained, even-textured monzogranite|acid intrusive rock|||Y||17-JAN-23
Mount Palgrave Group|76740|Palgrave volcanic association|35902|||Yes|Group, Suite|Formal|Other new published name|Described|Bentley Supergroup|1491|||Stenian|1068|6|isotopic, U/Pb-Pb/Pb ion probe|eruption|Stenian|1077|||||||No|67375||||||1077 - 1063 Ma. Bentley Basin. Divided, in part, into 3 unnamed volcanic and volcaniclastic units.|Rhyolitic and trachydacitic volcanic sandstone, siltstone and mudstone, contains fiamme; minor mafic volcanic rocks; ignimbrite; rhyolite and trachydacite, spherulitic, perlitic or massive, intruded by / included in quartz syenite and syenogranite.|acid volcanic rock|intermediate volcanic rock||N||05-OCT-23
Mount Parker Formation|33980|Mount Parker Sandstone|13010|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic|1000|||||||No|22547||||||Is this a misspelling, or intended to replace Mount Parker Sandstone? The first 2 uses appear to be misspellings.|Sandstone, pebbly sandstone, conglomerate, siltstone, mudstone and breccia.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Parker Sandstone|13010|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Mesoproterozoic|1000|||deposition|Mesoproterozoic|1200||||300|770|WA|No|44317|45140|||||Texas Downs Basin - mapped as Texas Downs Formation - BOW 1 : 100 000 map sheet. Also described as Mesoproterozoic. Superseded by Mount Kinahan Sandstone? or Mount Parker Formation?|Well sorted thinly bedded medium grained quartz sandstone, medium to coarse sublithic arenite and minor pebble conglomerate with siltstone locally near the base; low angle cross bedding is common, and clay pellets occur on bedding planes in places|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Mount Percy Lamproite|13017|Mount Percy lamproite|13018|||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158||||||||basic intrusive rock|||Y|I-type|17-JAN-23
Mount Peron Sandstone|22439|||||Yes|Formation, beds|Informal|Resvd name published|Mentioned|||||Lower Jurassic||||deposition|Lower Jurassic||||||||No|43297||Mory A.J.|16-JUL-90|||Advised of use in unpubl.report & poss. confusion with publ. Peron Sandstone||siliciclastic sedimentary rock|||N||17-JAN-23
Mount Pickering Dolerite|38804|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||600||No|23930||||||||basic intrusive rock|||Y||17-JAN-23
Mount Pierre Group|13030|Mount Pierre group|13031|||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Frasnian|||||Frasnian|||||||WA|No|44404|44998|||||See also Lexicon. Geological Province: Fitzroy Basin.|||||N||17-JAN-23
Mount Pleasant Gabbro|13036|Mount Pleasant Intrusion|78644|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41371||||||Name reinstated in 2016. It forms part of the Eastern Goldfields Superterrane of the Yilgarn Craton. Mount Pleasant Gabbro lies across the Bardoc and part way into the Kalgoorlie 1:100K GSWA map series sheets. To be published = GSWA digital release 2016.|Gabbro to leucogabbro dominant; granophyric segregations; pyroxenite or dunite basal segregations; metamorphosed|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Mount Ragged Formation|36944|Mount Ragged Beds|13047|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Mesoproterozoic|1154|15||metamorphism|Mesoproterozoic|1321|24|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|23727||||||1321 Ma maximum depositional age from quartzite. Buried and metamorphosed 1154 +/- 15 Ma (rutile growth: Clark et al., 2000).|Quartzite, quartz-muscovite schist, quartz pebble metaconglomerate; in places contains biotite, garnet, andalusite, viridine, or sillimanite|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Rankin Granite|76819|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Archean||||intrusion|Archean||||||||No|70204||Doublier, M. (GSWA)|29-MAR-12|||Southern Cross area. Map sheet area SH50-16, 2735. Poorly exposed granite with some possible gneissic component; typically deeply weathered, well defined dome structure in aeromagnetic data.To be published: GSWA 1:100,000 geological map.|Poorly exposed granite with some possible gneissic component; typically deeply weathered, well defined dome structure in aeromagnetic data.|acid intrusive rock|||Y||17-JAN-23
Mount Regal dacite|33909|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean|3260|||eruption|Archean|3260|||||||No|22449|||||||||||N||17-JAN-23
Mount Robinson Ophiolites|13071|Mount Robinson ophiolites|13073|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|34324|||||||||||N||17-JAN-23
Mount Roe Basalt|27847|Cooieena Basalt|69016|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2763|13|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean|2775|10|isotopic, U/Pb-Pb/Pb ion probe||200|2440|WA|No|44536||||||Of Kriewaldt (1964). Type area is near Andover. Shows substantial thickness variations over short lateral distances. Formerly included in the Cooieena Basalt. Basal unit in Fortescue Group.|Massive, porphyritic, vesicular, amygdaloidal and doleritic basalt; some high-Mg basalt, agglomerate, volcanic breccia, tuff, mafic wacke, shale, polymictic conglomerate and sandstone, siliceous limestone and dolomite.|basic volcanic rock|siliciclastic sedimentary rock||N||27-JUN-23
Mount Scholl Complex|38618|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|23784|||||||||||N||17-JAN-23
Mount Scratch Siltstone|26057|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|71781|36293|||||||siliciclastic sedimentary rock|||N||17-JAN-23
Mount Sefton greenstones|13092|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|31092|||||||||||N||17-JAN-23
Mount Shea Porphyry|77535|Mount Shea porphyry|72449|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Archean||||eruption|Archean|2658|3||||||No|66880||||||A capitalised variation of the current Mount Shea porphyry (Unit no. 72449).|||||N||17-JAN-23
Mount Sholl Intrusion|31685|Mount Sholl Complex|13098|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||intrusion|Archean|2925|||||||No|43822||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). See also Sholl Intrusion - unclear which name takes precedence?|Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite, and minor anorthosite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Mount Solitaire Sandstone|80497|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|63866||||||Shown as Mt Solitaire Ssts in time space plot with a max deposition age within the 1850-1800 Ma range (~1820 Ma). Probably an informal name for sandstones in the Mount Solitaire sheet area. May be equivalent to Ware Group?|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Mount Sylvia Formation|27207|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hamersley Group|8005|||Paleoproterozoic|2480||inferred, overlying unit|deposition|Neoarchean|2506||inferred, lithostratigraphic correlation|||30|WA|No|44729|33544|||||See also Mount Sylvia Shale and misspelt Sylvia Formation. Ages from Trendall et al (2004), RefID 60706 give max age 2506 Ma, min age 2505 Ma, interpolated from stratigraphy, unit thicknesses and SHRIMP ages elsewhere in the succession.|Mudstone, siltstone, chert, iron-formation, and dolomite.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||27-JUN-23
Mount Thirsty Gabbro|80423|Mount Thirsty Intrusion|75275|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Neoarchean|2665||inferred||Neoarchean|2702||inferred|||||No|||Sapkota, J. (GSWA)|31-JAN-18|||A revision of the Mount Thirsty Intrusion as the previous name did not comply with nomenclature protocol. To be published in GSWA series map release 2018 and explanatory notes, 2018-2020. On the Norseman map sheet. Named for Mount Thirsty. See also GSWA ENS:  SAPKOTA, J (partial report), Mount Thirsty Gabbro (A-_mx-og): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Differntiated gabbroic sill; pyroxenite to granophyre segregations;metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Mount Troy Formation|23838|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carribuddy Group|3686|||Upper Ordovician||||deposition|Upper Ordovician||||||35|WA|No|40837|40837|P.Lehmann|20-JAN-84||||A thin unit of pale grey dolostone with interbedded red, brown, and grey mudstone; the ratio varies regionally.Dolostone, shale and siltstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Venn Igneous Complex|75243|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2666||||Neoarchean|2769|||||||No|66116||Mark Pawley (GSWA)|10-JUN-09|||For use on map sheet SH 51-3; nearest town is Cosmo Newbury. Located in northeast corner of the Yilgarn Craton, in the Mount Venn greenstone belt. To be published in several GSWA publications in near future, including 1:100K maps and geochronological reports. This name reservation is the formalisation of previous informal nomenclature for these rocks.|Layered intrusion of gabbro, leucogabbro, and leucodolerite; metamorphosed; locally schistose.|metamorphosed basic igneous rock|||Y||17-JAN-23
Mount Wangee Dacite|68507|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3018|2||eruption|Archean|3021|3||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclature revision in GSWA Record 2006/15 (Van Kranendonk). Intrudes Ruth Well, Regal and Cleaverville Formations.|Quartz feldspar porphyry, rhyolite and dacite; chiefly intrusive; metamorphosed.|acid volcanic rock|||Y||17-JAN-23
Mount Waugh Formation|76741|Mount Waugh rhyolite|77232|||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Palgrave Group|76740|||Mesoproterozoic||||eruption|Mesoproterozoic||||||||No|69153||Howard, H.M. (GSWA)|17-JAN-12|||Bentley Basin. Talbot 1:250k sheet SG52-09. To be published: Werner, M, Howard, HM, Smithies, RH, Aitken, ARA and Medlin C 2012, Mount Eveline, WA Sheet 4345: Geological Survey of Western Australia, 1:100 000 Geological Series.|Flow-banded rhyolite, locally interlayered with siliciclastic diamictite, conglomerate, sandstone and siltstone, and amygdaloidal basalt.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Mount Webb Granite|13203|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Mount Webb Suite|31336|Calymmian|1486|40||intrusion|Statherian|1639|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|29806|45140|||||Co-magmatic with Pollock Hills Formation Felsic Volcanics. Ages: 1486 +/- 40Ma and 1639+/-5 Ma (SHRIMP). Warumpi Province, Arunta Orogen, North Australian Craton.|Metamonzogranite, metasyenogranite, metagranodiorite and metatonalite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Mount Webb Suite|31336|||||Yes|Group, Suite|Formal|STRATLEX Entry|Described|||||Statherian|||||Statherian|1615|||||||No|50369||||||Arunta Province.  Age: ~1615Ma. Example of the Hiltaba Association.|Fractionated granite, with extensive alteration effects incl: sodic-calcic, sericitic and hematite-K-feldspar in granite.|acid intrusive rock|metasomatic rock||Y||17-JAN-23
Mount Webber Gabbro|81605|Mount Webber Suite|80613|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Paleoarchean|3438|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Paleoarchean|3588|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72251||||||Probably replaces Mount Webber Suite? Older date from leucogabbro sample, younger date from gabbro sample.|Metamorphosed gabbroic, leucogabbroic and anorthositic rocks.|basic intrusive rock|||Y||17-JAN-23
Mount Weld Carbonatite|34990|Mount Weld carbonatite|23839|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Paleoproterozoic|2021|13||eruption|Paleoproterozoic||||||||No|23040||||||Also used in Alkaline rocks dataset.|Carbonatite plug with mineralized lateritic cap; breccia with abundant glimmerite; locally silicified.|exotic composition igneous rock|||Y||17-SEP-23
Mount West Gabbro|13210|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|30390||||||||basic intrusive rock|||Y||17-JAN-23
Mount White Group|78383|Mount White Greenstone|13213|||Yes|Group, Suite|Reserved|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|70153||Sapkota, J. (GSWA)|26-SEP-13|||Sir Samuel 1:250 000 sheet area. The Group includes the siliciclastic Maria Mine Formation (Strat No 77946), the Halfway Well Basalt (Strat No 77945), the Vivien Formation (Strat No 77944) and the Mosquito Well Conglomerate (Strat No 77948). These units occupy the Mount White Syncline on the Sir Samuel Sheet. To be published: GSWA map and explanatory notes 2013/14.|||||N||17-JAN-23
Mount Wilson Sandstone|29295|Mount Wilson Beds|13229|||Yes|Formation, beds|Formal|Variation of published name|Described|Oscar Range Group|14667|||Neoproterozoic||||deposition|Mesoproterozoic||||||||No|42710|||||||Coarse quartz sandstone, feldspathic sandstone and minor arkose with abundant detrital tourmaline and zircon; generally less labile and finer grained upwards, with fine grained rippled micaceous sandstone near the top|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Mowanjum Sand|23841|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Quaternary||||deposition|Quaternary||||||15|WA|No|36483|36483|Semeniuk, V.|22-DEC-75|||Essentially a sand plain (terrestrial) formation probably of aeolian origin.|Mainly of red to orange quartz sand; locally sand is white. Also, sheets and wedges of white sand, ferruginised sand and root-structured sand interlayered locally with the main red sand. Trace fossils such as animal burrows, root casts.||||N||17-JAN-23
Mowbowra Conglomerate Member|13280|Mowbowra Conglomerate|13282|||Yes|Member, phase|Formal|Unknown or process pending|Described|Bundera Calcarenite|25709|||Holocene||||deposition|Pleistocene||||||||No|37016|||||||||||N||17-JAN-23
Mowla Sandstone|13285|Mowla Conglomerate|13284|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Lower Cretaceous||||deposition|Upper Jurassic||||||15|WA|No|44998|45153||||||Fine- to coarse-grained sandstone, minor mudstone; basal conglomerate|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Moyagee Formation|13286|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||Archean||||deposition|Archean||||||||No|30949|||||||||||N||17-JAN-23
Moyle River Formation|13287|||||Yes|Formation, beds|Formal|Other new published name|Defined|Fitzmaurice Group|6698|||Mesoproterozoic|1537||inferred, intrusive relationship|deposition|Paleoproterozoic|1640||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||3000|NT|No|32309|48938|||||Fitzmaurice Basin.|Silica cemented quartz sandstone, minor siltstone and pebble conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mu Formation|78890|Ligertwood beds|29411|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Middle Ordovician|||inferred, structural relationship|minimum depositional age|Early Cambrian|||inferred, underlying unit|deposition|||WA|Yes|71088||Haines, P. , Allen, H. (GSWA)|06-JUN-14|Barham, M.|25-MAR-15|MACDONALD 1:250 sheet SF52-14. Age based on detrital zircon signature and stratigraphic and structural constraints. Previously mapped as Ligertwood beds on the MACDONALD 250K map, but this unit is partly lithologically distinct from, and probably significantly older than, the outcrops at the Ligertwood beds type area (Ligertwood Cliffs) on the MOUNT RENNIE 250K sheet in NT (inferred to be late Paleozoic). The main outcrops of this new unit, and its proposed type area are in or near the Mu Hills in WA. Published in GSWA Record 2015/8.|Cobble to boulder conglomerate with predominantly sedimentary clasts and ferruginous, friable, sandy matrix; local red-brown sandstone and pebbly sandstone, and minor siltstone.|siliciclastic sedimentary rock|||N||23-MAR-23
Muchea Limestone|13298|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Pleistocene||||deposition|Pleistocene||||||||No|30939||||||Stated to be of the Kwinana Group (Abeysinghe 2003) but this is probably not correct?|Chalky calcrete/limestone, lacustrine|regolith|||N||17-JAN-23
Muderong Shale|13315|||||Yes|Formation, beds|Formal|Other new published name|Defined|Winning Group|20259|||Aptian|113|||deposition|Valanginian|135|||||266|WA|No|44537|48861|||||See also Lexicon. SG50-1.|Light to medium grey siltstone and soft pyritic mudstone.|fine grained siliciclastic rock|||N||17-JAN-23
Mudjalla Sandstone Member|26778|Mudjalla Sandstone|13320|||Yes|Member, phase|Formal|Unknown or process pending|Described|Wallal Sandstone|27250|||Lower Jurassic||||deposition|Lower Jurassic||||||40||No|36634|||||||Sandstone, mudstone and conglomerate; fluvial.|siliciclastic sedimentary rock|||N||17-JAN-23
Mudong Metamorphics|13325|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Morrissey Metamorphic Suite|27277|||Precambrian|||||Precambrian||||||||No|23325||||||probably supersedes the Mudong Member?  Need confirmation.|||||N||17-JAN-23
Mueller Conglomerate|30728|Elma Conglomerate|68859|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Famennian||||deposition|Givetian|||||||WA|No|64580||Playford P., Hocking R.|09-JAN-97|||After Mueller Range. Part of Lennard Shelf reef complexes. Elma 1:100 000 sheet area (Mt Ramsay 250k).  Name for an isolated conglomerate body east of the Margaret Embayment, previously shown as Elma Conglomerate (Tyler et al. 1998).|Large cobble and boulder conglomerate.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Muggamurra Dolerite|77219|Muggamurra Suite|75380|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Marnda Moorn Suite|80594|Mesoproterozoic|1205||inferred|intrusion|Mesoproterozoic|1215||inferred|||||No|66299||||||The name Muggamurra Suite had been reserved in 2009 for publication in 2010, but this name appears to have been used instead. To be updated to Muggamurra Dolerite Suite in 2014 [advice from GSWA Dec 2013], but to revert back to Muggamurra Dolerite in 2018 [advice from GSWA]. Dolerite and gabbro dykes; east-northeast to east-southeast trending; arcuate dyke swarm.  in the Murgoo to Glengarry 1:250 000 map sheet areas.See also GSWA ENS: Wingate, MTD (partial report), Muggamurra Dolerite (P_-MMug-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro dykes; east-northeast to east-southeast trending; arcuate dyke swarm.|basic intrusive rock|||Y||17-JAN-23
Mugs Luck Basalt Member|78994|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Yalgoo Formation|78991|||Neoarchean|2793||inferred|eruption|Neoarchean|2800||inferred|||||No|69583||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Mug's Luck Bore, Ninghan 1:100k sheet area. 29deg12'S, 117deg1'E. Type area adjacent to Carlaminda Hsd. Probably time-equivalent to the Lordy Basalt Member of the Meekatharra Formation in the northern Murchison Domain, but subtle differences in lava types and abundances warrants a separate formation. Previously included as a member of the Murrouli Basalt, now shown as part of the Yalgoo Formation in the Yalgoo 1:100 000 sheet, 2015.|Thick sequence of pyroxene spinifex textured basalt flows; minor interlayered sedimentary and volcaniclastic rocks; widely metamorphosed to serpentinite|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Muir Hills intrusion|79622|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||Giles Suite|74611|Mesoproterozoic|||||Mesoproterozoic||||||||No|68996||||||WAROX data suggest that the Muir Hills intrusion (G1) dips to the north at approximately 75 degrees. Thickness of pluton unknown. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|||||Y||17-JAN-23
Muiron Member|27210|Pilgramunna Formation|15198|||Yes|Member, phase|Formal|Unknown or process pending|Defined|Exmouth Sandstone|6446|||Pleistocene||||deposition|Pleistocene||||||25|WA|No|33593|33593||||||||||N||17-JAN-23
Muja Coal Measures|13341|Muja Member|13342|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collie Group|4345|||Wordian||||deposition|Roadian||||||450||No|42711|42711|||||Supersedes Muja Member and includes rocks from Cardiff Member and parts of Collieburn Member. Thickness: ~450m.|Interbedded poorly sorted feldspathic sandstone, carbonaceous shale, coal; conglomerate.|organic rich sedimentary rock|siliciclastic sedimentary rock||N||23-MAR-23
Mulali Member|23843|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Late Cambrian||||deposition|Middle Cambrian|||||||WA|No|40993|40993|Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins.|||||N||17-JAN-23
Mulgabbie Group|13357|Mulgabbie Formation|13356|||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|37373||||||See also Mulgabbie Formation.|||||N||17-JAN-23
Mulgandinnah Monzogranite|36958|Mulgandinnah Adamellite|13359|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Sisters Supersuite|68741|Mesoarchean|2919|||intrusion|Mesoarchean|2934|2||||||No|61252||||||Age: c.2934 Ma Part of Shaw Granitoid Complex Possibly same unit as Mulgandinnah Adamellite?|Fine- to medium-grained, magnetite-bearing biotite monzogranite, locally with orthogneiss blocks; weakly foliated.|acid intrusive rock|||Y||17-JAN-23
Mulgarra Sandstone|13362|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Miningarra Group|79473|||Paleoproterozoic||||deposition|Paleoproterozoic|1808|36|isotopic, U/Pb-Pb/Pb ion probe|||100|WA|No|30010|40938|||||Maximum age from  a single detrital zircon grain.|Sandstone; minor shale, limestone, and granule conglomerate; locally glauconitic|siliciclastic sedimentary rock|carbonate sedimentary rock||N||25-MAY-23
Mulgine Granite|27510|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Rothsay Suite|79002|Neoarchean||||magmatic crystallisation|Neoarchean|2756|15|isotopic||||WA|Yes|35726||Baxter J.L.||||To be used in Murchison Domain updates in 2015.  Named after Mulgine Hill, Rothsay 1:100k map sheet area. 29deg11'S, 116deg59'E. Type area Mount Mulgine. Intrusive into top-Norie Group and base-Polelle Group supracrustal rocks.|Muscovite metamonzogranite, biotite-metagranodiorite and hornblende metatonalite phases. Host to Mo-W mineralization. Locally strongly deformed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Mulkerins Granite|27511|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|44366||||||Defn on Tech File SE/52-5. See also misspelling Mulkerrins Granite.|White coarse and even grained leucocratic granite, syenogranite, monzogranite, tourmaline muscovite aplite and quartz feldspar pegmatite|acid intrusive rock|||Y||17-JAN-23
Mulla Bulla Formation|34402|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||Proterozoic||||deposition|Proterozoic||||||||No|22716|||||||||||N||17-JAN-23
Mullaloo Sandstone Member|13374|||||Yes|Member, phase|Formal|Other new published name|Defined|Kings Park Formation|9612|||Eocene||||deposition|Paleocene||||||200|WA|No|31562|32748|||||See also Mullaloo Sandstone.|Poorly sorted, fine- to very coarse-grained, pale brownish-green, slightly glauconitic and clayey sand.|regolith|||N||17-JAN-23
Mullalyup pegmatite|28827|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|39161|||||||||||Y||17-JAN-23
Mullamullang Member|34081|Mullamullang Limestone Member|13386|||Yes|Member, phase|Formal|Variation of published name|Described|Nullarbor Limestone|25355|||Middle Miocene|||biozone|deposition|Middle Miocene|||biozone|||||No|44133|||||||Algal limestone- nodules of calcareous red algae in a matrix of foraminiferal calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
Mullewa Granite|78989|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||Bunnawarra Suite|78355|Mesoarchean||||magmatic crystallisation|Mesoarchean|2964|10|isotopic|||||No|||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Mullewa town. Type area 5 km east of Wurarga Hsd. Metamorphosed 'basement' unit, no known older units in region.|Metamorphosed granitic to tonalitic rocks; typically gneissic|metamorphosed acid igneous rock|||Y||17-JAN-23
Mulliberry Granite|78967|Mulliberry Granitoid Complex|31102|||Yes|Formation, beds|Reserved|Variation of published name|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|70153||Patison, N. (GSWA)|16-SEP-14|||Yilgarn Craton. To be published: Geological Survey of Western Australia online Explanatory Notes Database 2015. Probably only a part of the granitoid complex.|Foliated biotite monzogranite, granodiorite and microgranite dykes interleaved with greenstone; metamorphosed|metamorphosed acid igneous rock|acid intrusive rock||Y||17-JAN-23
Mulline Formation|13392|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cenozoic||||deposition|Cenozoic|||||||WA|No|41199|41199||||||||||N||17-JAN-23
Mullingarra Gneiss|28111|Mullingarra Beds""|13393|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Paleoproterozoic|2200|||||||No|44237||||||See also Lexicon.  See also Mullingarra Complex. Deposition age = Paleoproterozoic (~2200 Ma).  Metamorphism = Neoproterozoic (~1060 Ma)|Quartzo-feldspathic, semi-pelitic and pelitic gneiss; granoblastic texture common; minor pegmatite and granitic segregation; includes lenses of quartzite and amphibolite|high grade metamorphic rock|||N||17-JAN-23
Mullugunya Granodiorite|41377|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Emu Pool Supersuite|68766|Paleoarchean|3308|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3471|5||||||No|44229||||||Intrudes Apex Basalt and Duffer Formation. Formerly of the Munganbrina Suite of Collins (1983, 1993). In area of the Mount Edgar Granitoid Complex.|Biotite--hornblende granodiorite; medium grained; weakly foliated and metamorphosed|acid intrusive rock|||Y||25-MAY-23
Mulya Dolomite|23847|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Uaroo Group|24053|||Proterozoic||||deposition|Proterozoic|||||||WA|No|38988|39427|J.Baxter|04-NOV-75||||Algal dolomite, quartz arenite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Mumba Psammite|75924|Mumba Pelite|36889|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Moogie Metamorphics|36888|||Rhyacian|2240|8|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Siderian|2369|8|isotopic, U/Pb-Pb/Pb ion probe|||||No|68521||||||Supersedes Mumba Pelite. See RefID 66299 Explanatory Notes for the Gascoyne Province p57-58.|Quartzofeldspathic psammitic schist commonly with chloritoid; local minor pelitic schist and quartzite|metasedimentary siliciclastic rock|||N||17-JAN-23
Mummawarrawarra Basalt|36943|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kunmarnara Group|74752|||Stenian|1076|7||eruption|Stenian|1172|8||||240||No|44109||||||Within the Bentley Supergroup, Bentley Basin. Previously of Tollu Group until it was split up. In ref 69153 (2012), age: inherited zircons 1186+/-7 Ma (SHRIMP-B, 207Pb/206Pb).|A stack of individual 1-5m thick flow units, from amygdaloidal basalt, basaltic andesite (the majority), to andesite. Locally, slightly migmatized to gneiss with alternating layers dominated by fine-grained amphibole or coarser-grained epidote.|basic volcanic rock|igneous volcanic rock||N||17-JAN-23
Munabia Sandstone|13414|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian||||deposition|Frasnian|||biozone|||555|WA|No|44537|45015|||||See also Lexicon. Contains lepidodendroid plants and Bothreolepis fish fauna. Max. thickness: 4450ft. Replaced by the Munabia Formation due to greater shale proportion (Mory and Yasin, 1999), but subsequently changed back to Munabia Sandstone.|Well sorted, fine- to coarse-grained sandstone with minor siltstone conglomerate and dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Munarra Monzogranite|74869|Munarra|22472|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Tuckanarra Suite|74831|Archean||||intrusion|Archean|2670|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: 2670Ma.|Monzogranite, with minor granodiorite, diorite, and microgranite; metamorphosed|metamorphosed acid igneous rock|||Y||25-MAY-23
Mundabia Sandstone|13419|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|35282||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Mundadjini Formation|23849|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sunbeam Group|33753|||Cryogenian|||inferred, lithostratigraphic correlation|deposition|Cryogenian|||inferred|||188|WA|No|41768|41768|I.R.Williams|05-AUG-86|||Formerly Savory Group, Savory Basin.  For the location of one of the type areas see Bullen Explan Notes (1995). Age: ~800Ma.|Sandstone, siltstone, and minor conglomerate, shale, mudstone, and dolomite (locally stromatolitic); evaporite pseudomorphs.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||03-APR-23
Mundarie Siltstone|13423|Mundarie Siltstone Member|13421|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian||||deposition|Sakmarian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-1.||siliciclastic sedimentary rock|||N||17-JAN-23
Mundaring Granite|28828|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||Neoproterozoic|590|||intrusion|Neoproterozoic|750|||||||No|34115|||||||Light-medium grey and medium-grained granite.|acid intrusive rock|||Y||17-JAN-23
Munder Formation|81973|||||Yes|Formation, beds|Formal|Other new published name|Defined|Turee Creek Group|18702|||Rhyacian|2208||inferred, overlying unit||Siderian|2340||inferred, underlying unit||125|300|WA|Yes|72712||Martin, D. (GSWA)|07-JUL-20|||Published in GSWA Report 203. For further information see definition card for this unit.|Medium to very coarse-grained, trough cross-stratified ferruginous sandstone and minor conglomerate that forms a broadly upward-coarsening succession.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Mundine Well Dolerite|80584|Mundine Well Dolerite Suite|73505|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic|755|3|isotopic, U/Pb-Pb/Pb ion probe||Neoproterozoic|755|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|72712||Wingate, M.T.D., Blay, O.A. (GSWA)|03-JUL-18|||Previously Mundine Well dyke swarm of Wingate and Giddings (2000). Intrudes all the stratigraphic units in Gascoyne Province, and Wyloo Group, Capricorn Group and Bangemall Supergroup. Cuts across dykes of Narimbunna and Kulkatharra Dolerites (Gascoyne Province Explan. notes, 2010) and extends across the Pilbara Craton. See also GSWA ENS: Wingate, MTD and Blay, OA (partial report), Mundine Well Dolerite (P_-_mw-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dykes, sills, and small intrusions with locally abundant xenoliths and potassic alteration of wallrocks; subalkaline, high-Fe to high-Mg tholeiites;.includes minor quartz diorite, syenite, tonalite, and biotite monzogranite.|basic intrusive rock|intermediate intrusive rock||Y||09-FEB-23
Mungadan Sandstone|13455|Mungadan Formation|13454|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kennedy Group|9434|||Roadian|||inferred, overlying unit|deposition|Kungurian||||||116|WA|No|44537|45016|||||See also Lexicon. SG50-1. Type section located at East side, Wandagee Hill, 23d50m10sS; 114d25m50sE.|Quartz arenite and quartz wacke, locally bioturbated.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Munganbrina Monzogranite|41378|Munganbrina Suite|38963|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||Emu Pool Supersuite|68766|Paleoarchean|3310|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3315|5||||||No|44229||||||Oldest and largest pluton of the Mount Edgar Granitoid Complex area. Intrudes Mount Ada Basalt and intruded by Chimingadgi Trondjhemite.|Monzogranite; banded, medium to coarse grained; locally seriate to porphyritic; weakly foliated and metamorphosed|acid intrusive rock|metamorphosed basic igneous rock||Y||25-MAY-23
Mungari Monzogranite|13459|Mungari Granite|27852|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Neoarchean|2600|12|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2620|20||||||No|42697|||||||Medium-grained, equigranular, two-mica monzogranite; massive.  Low Ca granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Mungarinya Monzogranite|35351|Kangan Granite|28205|||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Mesoarchean|2930|||intrusion|Mesoarchean|2938|3||||||No|50370||Smithies R.H.|10-MAR-00|||Satirist 1:100k sheet area. Replaces Kangan Granite/Kangan Adamellite.|Feldspar(--quartz) porphyritic biotite monzogranite; massive to weakly foliated; locally well developed flow alignment of phenocrysts and schlieren; locally ghost banded; weakly metamorphosed|acid intrusive rock|metamorphosed acid igneous rock||Y||25-MAY-23
Mungaroo Formation|13466|Mungaroo Beds|13464|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Toarcian|||inferred, biostratigraphic correlation|deposition|Ladinian|||inferred, biostratigraphic correlation||380|6000|WA|No|32648||||||Gas reservoir for Pemberton Field.|A thick fluvio-deltaic succession of sandstone, claystone and minor coal; shoreline sandstone, shallow marine claystone and minor limestone in the upper part.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Mungaroona Granodiorite|33202|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Archean|2935|||intrusion|Archean|2945|||||||No|50370||Smithies R.H.|27-OCT-98|||Age: c.2940Ma (Nelson 2000). Exposed on SATIRIST.|Hornblende (-biotite)-bearing granodiorite and monzogranite with greenstone and granitoid gneiss rafts and xenoliths.|acid intrusive rock|||Y||17-JAN-23
Mungedar Breccia|79801|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Cretaceous|||||Cretaceous||||||||No|||Goss, S. (GSWA)|30-MAR-17|||Moora SH50-10, Badgingarra 2037.  A polymict breccia comprising a mixture of fragments derived from the underlying Jurassic and Cretaceous sedimentary rocks set in a fine-grained clastic matrix. The fragments range in size from a few centimetres to several metres and are typically composed of sandstone, quartzite, grey siltstone, conglomerate and fragments that have been completely weathered to clay. The matrix of the breccia has a distinctive green colour due to the presence of glauconite. To be published = GSWA Explanatory Notes Database.|A polymict breccia comprising a mixture of fragments derived from the underlying Jurassic and Cretaceous sedimentary rocks set in a fine-grained glauconitic clastic matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Munglinup Gneiss|30538|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2630||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean|2681|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|43203||||||Albany-Fraser Orogen.  Interleaved with metagabbro and pyroxene granulite of the Fraser Complex. Previously considered part of the Biranup Complex, now Northern Foreland [2009].|Amphibolite-granulite facies orthogneisses, interlayered with lenses of metamorphosed mafic rocks; minor jaspilite, amphibolitic schist, serpentinite, and metamorphosed ultramafic rocks.|high grade metamorphic rock|metamorphosed acid igneous rock||Y||17-JAN-23
Mungoo Salt|25310|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|40837|||||||||||N||17-JAN-23
Munjina Member|37721|||||Yes|Member, phase|Formal|Resvd name published|Described|Marillana Formation|37720|||Miocene||||deposition|Eocene||||||40||No|24573||Kneeshaw, M.|20-NOV-02||||Conglomerates and clays|regolith|||N||17-JAN-23
Munkayarra Shale|28831|Munkayarra Formation|22477|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Upper Triassic|||inferred|deposition|Middle Triassic|||inferred, underlying unit|||185|WA|No|41688|||||||Multicoloured claystone and shale.|fine grained siliciclastic rock|||N||17-JAN-23
Munni Munni Intrusion|37206|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Radley Suite|68740|Archean|2924|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Archean|2925|16|isotopic, U/Pb-Pb/Pb ion probe|||5500||No|23793||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). See also information on the Munni Munni Complex. Part of the Sisters Supersuite.|Gabbro, leucogabbro, serpentinised peridotite and dunite, pyroxenite, and minor anorthosite; metamorphosed. Contains platinum-group elements, nickel and copper mineralisation.|basic intrusive rock|||Y||17-JAN-23
Muntharra Formation|32055|Jillawarra Formation|8954|||Yes|Formation, beds|Formal|Resvd name published|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||30|50|WA|No|22905|24183|Thorne A.|20-NOV-97||||Thinly bedded, planar-laminated siltstone, dolomitic siltstone, dolostone, with interbedded dolomitic sandstone and quartz sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Muntharra Formation, Kiangi Creek Formation|74908|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|Edmund Group|34906|||Calymmian||||deposition|Calymmian||||||||No|||||||Informal unit for the Surface Geology of WA, 1:1 million scale.  Equivalent to Depositional Package 3 of the Edmund Group (GSWA 500K Solid Geology GIS, 2008)|Siltstone and mudstone; sandstone, dolostone, minor conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Munyu Sandstone|13494|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Redcliff Pound Group|15983|||Tonian|||inferred|deposition|Tonian|1155|14|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|||WA|Yes|29806|45140|Blake D.H.|15-MAR-73|WA SNSC||Murraba Basin, Centralian Superbasin. See also misspelt Munya Sandstone (refid 67163). Conservative max depositional age of 1155+/-14 Ma, although age of deposition known to be much younger based on correlation with Lewis Range Sandstone (which may not be correct). Previously considered part of Redcliff Pound Group. Revised by Haines and Allen (2016, in prep.), who assigned the Lewis Range, Muriel Range and Munyu Sandstones to lower Supersequence 1, while the  remaining Redcliff Pound Group rocks are now considered to be Supersequence 3-4. See 2017 redefinition of  Redcliff Pound Group. For more information see: Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35.|Shallow marine to emergent, partly conglomeratic quartz sandstone with planar crossbeds, asymmetric ripples, and reverse and normal grading;  minor grit, breccia, shale, siltstone, limestone and chert; weakly folded.|siliciclastic sedimentary rock|||N||17-JAN-23
Murat Siltstone|27211|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Toarcian|||inferred|deposition|Hettangian|||||||WA|No|41438|41751|||||Ages, relations, lithology updated from GA Timescales Project Feb 2009 and acreage release package 2015. Age range varies in different parts of Carnarvon Basin. In Dampier Sub-basin age is ~187-175Ma (Pliensbachian to Aalenian)|Thinly-bedded shelfal siltstone, claystone and marl.|siliciclastic sedimentary rock|||N||17-JAN-23
Murchison Supergroup|13501|||||Yes|Supergroup|Formal|Variation of published name|Described|||||Neoarchean|2700||||Mesoarchean|2963|||||||No|42533||||||Previously comprised Luke Creek, and Mount Farmer Groups (2 subgroups and 17 formations); the new scheme defines the Supergroup as comprising 3 Groups - Norie, Polelle and Glen Groups (2008).|Basalt, felsic volcanic and volcaniclastic rocks, and clastic and chemical metasedimentary rocks; includes subvolcanic layered mafic-ultramafic intrusions; metamorphosed.|igneous volcanic rock|metasedimentary rock||N||07-JUN-23
Muredong Shale|13505|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|31899||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Murgoo Gneiss Complex|38139|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Archean|||||Archean|2780||isotopic, Rb/Sr|||||No|44149||||||Probably replaces Murgoo gneiss.|Heterogeneous: pegmatite-banded, generally fine-grained orthogneiss (after granite with pegmatite veins); medium- to coarse-grained, leucocratic biotite granite (intrudes the gneiss).|metamorphosed acid igneous rock|acid intrusive rock||Y||17-JAN-23
Murgurra Shale Member|13513|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37460||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Muriel Range Sandstone|13518|Phillipson Beds|15140|||Yes|Formation, beds|Formal|Resvd name published|Defined|Redcliff Pound Group|15983|||Neoproterozoic|800|||deposition|Neoproterozoic|800|||||450|NT|Yes|29812|45140|Blake D.H.|15-MAR-73|||Age: ~800Ma. Previously considered part of Redcliff Pound Group. Revised by Haines and Allen (2016, in prep.), who assigned the Lewis Range, Muriel Range and Munyu Sandstones to lower Supersequence 1, while the  remaining Redcliff Pound Group rocks are now considered to be Supersequence 3-4. See 2017 redefinition of  Redcliff Pound Group.|Quartz sandstone, grit, conglomerate, breccia, shale, siltstone, limestone and chert|siliciclastic sedimentary rock|||N||17-JAN-23
Murion Member|13520|||||Yes|Member, phase|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|42116|||||||||||N||17-JAN-23
Murraba Basin sedimentary rocks 80967|80967|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Cambrian Series 2|||inferred||Tonian|||inferred|||||No|||||||Published in GSWA Tanami - Arunta geological information series 2018 update, and in RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Neoproterozoic-Cambrian sedimentary rocks, Murraba Basin P_E-s-NM . Within the Murraba Basin succession. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Undivided siliciclastic and carbonate rocks.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Murraba Formation|13529|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Redcliff Pound Group|15983|||Ediacaran||||deposition|Cryogenian|||||350|800|WA|Yes|29806|45140|Blake D.H.|15-MAR-73|WA SNSC||For recent update see: Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35.|Sandstone-sublithic and quartz arenite and thin interbeds of chert granule to pebble conglomerate; minor siltstone, shale and dolomite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Murramunda Dolerite|13534|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Proterozoic||||intrusion|Proterozoic||||||||No|41768|||||||Fine-grained to weakly porphyritic dolerite.|basic intrusive rock|||Y||17-JAN-23
Murray Range Gabbro|13546|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||West Hinckley Suite|80360|Mesoproterozoic|||inferred|intrusion|Mesoproterozoic|||inferred|||||No|30389||||||See also the informal Murray Range Layered Intrusion. Will become part of the West Hinckley Suite (formerly Giles Suite 2).|Pyroxenite/Peridotite/Gabbro.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Murrin Murrin Formation|73393|Murrin greenstones|68128|||Yes|Formation, beds|Formal|Resvd name published|Described|Minara Group|73397|||Neoarchean||||deposition|Neoarchean||||||||No|65147||Groenewald, B. (GSWA)|08-JUN-07|||Comprises the mafic and ultramafic volcanic rocks referred to as the 'Murrin greenstones' by Stewart (2004) and by Hill et al (2001, GSWA Record 2001/10) as the 'Murrin Murrin komatiite complex'. See also Murin Murin Complex, published 2004.|Pyroxene spinifex-textured basalt; includes ultramafic and minor felsic volcanic rocks; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
Murrouli Basalt|23855|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Norie Group|74802|||Mesoarchean|2815||inferred, overlying unit|eruption|Mesoarchean|2820|||||4000||No|42533||K.P.Watkins, A.H.Hickman, R.Davy|05-DEC-85|||See also Murrouli Formation, Muroulli Basalt and Murroulli dolerite. Parts intruded by Nannine Tonalite. Geological province: Murchison Domain. A dolerite sill that intrudes this unit has been dated at c. 2792 +/- 2 Ma.|A thick succession of pillowed and massive tholeiitic basalt (high-Mg), metamorphosed to amphibolite and upper greenschist facies.|metamorphosed basic igneous rock|||N||07-JUN-23
Musgrave Complex|13596|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Mesoproterozoic|1200||||Mesoproterozoic|1550|||||||No|38066||||||Frequently used as a structural or geological province term. GSWA Report 106 (2010, p2) states the Mesoproterozoic to Neoproterozoic Musgrave Province, in central Australia, was previously referred to in Western Australia as the Musgrave Complex (Myers et al.1996).|Metasedimentary and meta-igneous rocks.|metamorphic rock|||N||17-JAN-23
Musgrave Province - metamorphic rocks 83766|83766|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||inferred||Mesoproterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 3 'Musgrave Province metamorphic units',   P_-xmna-mg-MU, P_-myx-MU and P_-myy-MU, with 2 age ranges: 1600-1000 Ma and 1085-541 Ma. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Amphibolitic gneiss interleaved with migmatitic granitic gneiss, locally mylonitic; Mylonite and blastomylonite;  fault breccia|foliated metamorphic rock|||Y||30-JAN-23
Musgrave Province metagranitic rocks 83765|83765|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|997||inferred||Mesoproterozoic|1219||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Musgrave Province metagranitic unit', P_-mg-MU. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metagranite.|metamorphosed acid igneous rock|||Y||30-JAN-23
Musgravian gneiss - granulite facies|74451|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Granulite grade felsic gneiss, mafic granulite, intermediate granulite, pelitic gneiss, staurolite-bearing felsic gneiss, and metagranite|high grade metamorphic rock|acid intrusive rock||N||17-JAN-23
Musgravian gneiss - granulite facies 4|72677|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|||||||Unit to be used for Northern Territory and Western Australia 1:1 million geological maps, National Maps Project.|Garnetiferous granulite-facies metamorphosed early-syntectonic granites, tonalitic biotite gneiss, granitic gneiss, clinopyroxene-hornblende gneiss, porphyritic orthopyroxene granite |high grade metamorphic rock|||N||17-JAN-23
Musgravian gneiss - quartzite, schist, porphyry, basalt|74452|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Mesoproterozoic||||eruption|Mesoproterozoic||||||||No|||||||Used in Surface Geology of Australia, 1:1,000,000 scale - Western Australia dataset|Quartzite, quartz schist, porphyry, basalt|metasedimentary siliciclastic rock|igneous rock||N||17-JAN-23
Mussel Creek Granite|31891|Mussel Creek Monzogranite|22489|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43854||||||East Kimberley region|Medium- to fine-grained weakly porphyritic biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Mutooroo Basalt|73930|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Kalgoorlie Group|26647|||||||eruption|||||||200||No|62108||||||||basic volcanic rock|||N||17-JAN-23
Myalup Sand|73568|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pleistocene||||deposition|Pleistocene||||||15||No|63454|63454|||||Unconformable on Tims Thicket Limestone; unconformable below Kooallup Limestone. Restricted to Yalgorup Plain.|Structureless grey to white quartz sand, mainly fine to med.sand, poorly sorted; progressively more iron-stained towards top of unit; minor feldspar|regolith|||N||17-JAN-23
Myanna Leucogranite|35249|Pippingarra Leucogranite|35230|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Split Rock Supersuite|68672|Archean||||intrusion|Archean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa and Wodgina 1:100 000 sheets.|Biotite-muscovite monzogranite; locally with quartz and K-feldspar phenocrysts; massive to weakly foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Mystery Monzogranite|34802|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|22891|||||||Fine-grained, equigranular biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Nabberu Supergroup|23858|||||Yes|Supergroup|Formal|Unknown or process pending|Fully described|||||Proterozoic|||||Proterozoic||||||||No|38978||Goode, A.D.T.|15-APR-76||||||||N||17-JAN-23
Nadarra Formation|13681|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Gelasian|2.5|||deposition|Zanclean|4.5|||||||No|44344||||||See also Lexicon. SG50-6. Defn on Tech File G/50-5.|Micritic limestone and calcreted mudstone; lacustrine|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nakina Formation|13690|Collie Lake Beds|4347|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Aptian||||deposition|Aptian||||||||No|30268|42711|||||Formerly "Lake Collie Beds" of Maitland (1919).|Weakly lithified claystone, conglomerate and sandstone in upward-fining cycle; cross-bedded, fluviatile sands.|siliciclastic sedimentary rock|||N||17-JAN-23
Nalbia Sandstone|13698|Nalbia Greywacke|13696|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Byro Group|3230|||Cisuralian||||deposition|Cisuralian|||||40|120||No|44657||||||See also Nalbia Formation, Norton Greywacke, Lexicon. Previously recognised in Ruby 1 (Mills, 1997), but this interval now (2000) assigned to Abdul Sandstone.  Type section located 4km north of Wandagee Hill, 23d48m10sS; 114d25m10sE.|Quartz wacke, bioturbated and fossiliferous, contains ferruginous concretions.|siliciclastic sedimentary rock|||N||17-JAN-23
Nallana Formation|31017|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Whundo Group|31020|||Mesoarchean|3125|4||deposition|Mesoarchean|3125|4||||2000||No|23794||Williams I., Hickman A.|10-MAR-97|||Precambrian. West Pilbara.  Age: >3.1Ga. Within the Pilbara Supergroup - in the West Pilbara Superterrane|Basalt, with minor ultramafic, felsic, and sedimentary units; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Nallanaring Volcanic Member|13699|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Jeerinah Formation|8896|||Neoarchean||||eruption|Neoarchean|2684|6||||76||No|44477|44477|||||Defined (1968). Of Kriewaldt and Ryan (1967), GSWA used the abbreviated version  - Nallanaring Member - for a few years, but appear to have returned to the original name in 2003.|Includes felsic, as well as basaltic, lavas and pyroclastic rocks.|acid volcanic rock|basic volcanic rock||N||17-JAN-23
Namban Granite|13709|Namban granite|25320|||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|40348|||||||Porphyritic granite; low-Ca granite.|acid intrusive rock|||Y||17-JAN-23
Nambeet Formation|26070|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Dapingian|470.18|.13|inferred, biostratigraphic correlation|deposition|Tremadocian|||inferred, biostratigraphic correlation||49|800|WA|Yes|30110|45153|||||Graptolites, trilobites, brachiopods, conodonts and gastropod fossils present. Gas indicated in low porosity sandstones. Formally defined by Playford & others (1975).  Definition information copied from BMR Bull 210 (1981). Seven bentonite U-Pb zircon CA-ID-TIMS dates range from 479.37 +/- 0.18 Ma at the base of the Samphire Marsh Member to 470.18 +/- 0.13 Ma in the lowermost Willara Formation (Normore et al., 2018) [RefID 73344, 2021].|Sandstones, interbedded shales, siltstone. limestone and dolostone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||26-JUL-23
Nambung Member|78698|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Tamala Limestone|17719|||Pleistocene|.342|.02||deposition|Pleistocene|.383|.05||||||No|69788||Lipar, M. (La Trobe University)|17-FEB-14|||Lithological Descriptor = aeolian calcarenite. Map Sheet = 1936. Nearest Town = Cervantes. Brief description = Fine to coarse grained well sorted aeolianite, yellow coloured, poorly to well cemented, and with distinctive cross-bedding. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 11. To be published = This year (2014) in Australian Journal of Earth Sciences|Consists of an eolian calcarenite/calcrete-microbialite/paleosol cycle.|sedimentary rock|||N||17-JAN-23
Nammuldi Member|13720|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Marra Mamba Iron Formation|11353|||Neoarchean|2627||inferred, lithostratigraphic correlation|deposition|Neoarchean|2629||inferred, underlying unit|||100||No|42112||||||Hosts the Cloud Break and Christmas Creek iron ore deposits; dominantly martite-goethite supergene enrichment. Ages from Trendall et al (2004), RefID 60706.|Yellow-weathering chert, cherty BIF, some shale bands.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nanarup Limestone Member|13755|Nanarup Limestone|13757|||Yes|Member, phase|Formal|Variation of published name|Defined|Werillup Formation|27611|||Eocene|||biozone|deposition|Eocene|||biozone|||4.6|WA|No|71789|71789|||||Age is Aldingan.|Friable limestone.|carbonate sedimentary rock|||N||17-JAN-23
Nancar Sandstone|77110|Nancar Sandstone Member|77471|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Lower Cretaceous||||deposition|Upper Jurassic||||||||No|68223||||||Of Flamingo Group, Northern Bonaparte Basin.||siliciclastic sedimentary rock|||N||17-JAN-23
Nandingarra Granodiorite|36770|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Corunna Downs Granitoid Complex|34394|Emu Pool Supersuite|68766|Paleoarchean|3300|||intrusion|Paleoarchean|3313|4|||||WA|Yes|50381||L. Bagas and M. J. Van Kranendonk|05-FEB-02|||Age: 3433-3317Ma.|An elliptical body of fine- to coarse-grained, equigranular biotite granodiorite, with lesser tonalite and monzogranite|acid intrusive rock|||Y||17-JAN-23
Nangetty Formation|13780|Nangetty Glacial Formation|13782|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Sakmarian||||deposition|Visean||||||1200|WA|No|44998|36293|||||See also Lexicon. (Clarke et al., 1951).  In the Northern Perth Basin.|Diamictite, shale (locally varvoid), conglomerate, sandstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||23-MAR-23
Nangetty Sequence|80020|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Mentioned|||||Sakmarian|||||Asselian||||||||No|69297|||||||||||N||17-JAN-23
Nannine Tonalite|74818|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Archean|2782|||intrusion|Archean|2787|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Annean Supersuite. Cross-cuts through Norie Group.|Hornblende-bearing metagranodiorite with minor metatonalite; contains scattered, small mafic xenoliths.||||Y||17-JAN-23
Nannyarra Sandstone|13791|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Frasnian|||inferred, overlying unit|deposition|Givetian|||inferred, lithostratigraphic correlation|||214|WA|No|37295|||||||Coarse- to fine-grained, variably sorted, thin-bedded sandstone; minor siltstone and claystone; local basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Nanular Member|36972|Nanular Sandstone|23862|||Yes|Member, phase|Formal|Variation of published name|Described|Ullawarra Formation|18795|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation|||||No|23487|||||||Planar-laminated siltstone and thin- to medium-bedded quartz sandstone; thin lenses of pebble conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Nanutarra Formation|13794|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Aptian|||inferred, biostratigraphic correlation|deposition|Berriasian|||inferred|||75||No|44999||||||Previously included in Winning Group, but not by 2002. Appears to be in part lateral equivalent to Birdrong Sandstone and other Winning Group units, in part lateral equivalent to Yarraloola Conglomerate and Barrow Group.|Sandstone, siltstone, lesser pebble to cobble conglomerate; texturally immature.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nanutarra Formation and Yarraloola Conglomerate|80997|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|||||Aptian|||inferred, biostratigraphic correlation||Lower Cretaceous|||inferred, biostratigraphic correlation|||||No|72034||||||Informal combination of units for map scale. Used in IBG_GSWA_2020. Age from biostratigraphy.|Poorly sorted sandstone (in places glauconitic), cobble to boulder conglomerate, and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Napier Formation|27212|Napier formation|13815|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian|359|||deposition|Givetian|383|||||150|WA|No|39796|45153|||||See also Lexicon. Interfingers with Windjana Limestone.|Fossiliferous, shallow marine reef complex marginal slope and basin facies, red yellow and light grey silty calcarenite interbedded with siltstone, shale/calcirudite and sandstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nardoo Granite|32581|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Dalgaringa Supersuite|33444|Orosirian|1975|||intrusion|Orosirian|2005|||||||No|22904||Sheppard S.|22-JUL-98|||Glenburgh 1:250 000 sheet area, SG50-6, Gascoyne region.|Foliated, equigranular to porphyritic, medium grained biotite metatonalite and metaquartz diorite, with abundant small mafic clots; minor leucocratic tonalite and granodiorite.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Nardoopiquithanna Adamellite|13856|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|||||||WA|Yes|39444|39444|Hickman A.H. and Lipple S.L.|04-MAR-74|WA SNSC|06-JAN-75||Biotite Monzogranite.|intermediate intrusive rock|||Y||17-JAN-23
Nargalyerin Soak Monzogranite|76821|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Archean|2632|||intrusion|Archean|2639|||||||No|70204||Doublier, M. (GSWA)|29-MAR-12|||Southern Cross area. Map sheet area SH50-16, 2735. Biotite monzogranite; fine to coarse grained; K-feldspar-phyric. To be published: GSWA 1:100,000 geological map.|Medium-grained biotite monzogranite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Narilya Bore Basalt|82173|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Ectasian|||inferred||Calymmian|||inferred|||||No|73084||Quentin De Gromard, R. (GSWA)|08-FEB-21|||Named for the Narilya Bore. Occurs on the Butler 100k mapsheet. Nearest town is Balladonia. To be published in: Spaggiari, CV, Smithies, RH, Kirkland, CL, Wingate, MTD, England, RN and Lu, Y 2020, Stratigraphic and co-funded drilling of the Eucla basement ? the Proterozoic geology beneath the Nullarbor Plain: Geological Survey of Western Australia, Report 204, 147p.|Laminated to thinly layered metabasalt.|igneous volcanic rock|||N||17-JAN-23
Narimbunna Dolerite|73261|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Calymmian|1449|||intrusion|Calymmian|1465|||||||No|64580||Thorne, A. (GSWA)|10-MAY-07|||For use on PEEDAWARRA 1:100K map sheet SF 5014 and others. Nearest town: Paraburdoo. Sills intrude Edmund Group.  Age: ~1465Ma. Uncertain whether or not this unit should be considered part of the Bangemall Supergroup.|Dolerite and gabbro sills intruded into Edmund Group|basic intrusive rock|||Y||25-MAY-23
Narmia Member|13861|||||Yes|Member, phase|Formal|Unknown or process pending|Mentioned|||||Scythian||||deposition|Scythian||||||||No|34008|||||||||||N||17-JAN-23
Narndee Igneous Complex|74876|Narndee Complex|27857|||Yes|Formation, beds|Formal|Variation of published name|Described|||Boodanoo Suite|74954|Neoarchean|2780|||intrusion|Mesoarchean|2800|6|isotopic, Pb/Pb|||||No|64891||Moeskops, P.G.,  revised Van Kranendonk, M. 2008|10-NOV-08|||Geological province: Murchison Domain.  Age: approx. 2780Ma. Part of the Annean Supersuite. See also informal Narndee gabbro.|Layered gabbro, with dunite, pyroxenite, anorthosite, and hornblende gabbro; local well-developed cyclical layering on a hundred metre scale; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||20-JUL-23
Narracoota Formation|13894|Narracoota Volcanics|24421|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Bryah Group|29869|||Orosirian|1922|35|isotopic, Pb/Pb|eruption|Orosirian|2014||inferred|||6000||No|42730|65419|||||See definition for Narracoota Volcanics. Corresponds in part to Narracoota Volcanics. Includes the former Trillbar complex of Myers (1990). Includes a pyrite with a Pb-Pb isochron  of 1922 +/- 35 Ma (Windh, 1992): may be the date of mineralisation, not deposition.|Basalt with local pillow structures and hyaloclastite, dolerite sills which are commonly rhythmically layered, peridotite, pyroxenite, and leuco- meso- and melano-gabbro; mafic and ultramafic schist, minor jasperoidal chert, and local volcaniclastics.|basic volcanic rock|ultramafic igneous rock||N||17-JAN-23
Narryer Terrane - felsic volcanic rocks #83990|83990|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3100|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-f-YNA.|Felsic volcanic rock dominant; metamorphosed.||||N||15-SEP-23
Narryer Terrane - granulite #83989|83989|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3100|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-xmro-mwo-YNA.|Felsic and mafic granulite, undivided.||||Y||15-SEP-23
Narryer Terrane - iron formation #83988|83988|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2630||||Eoarchean|3730|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-mi-YNA|Metamorphosed iron formation.||||N||15-SEP-23
Narryer Terrane - metabasite #83992|83992|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Eoarchean|3730|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-b-YNA, A-mwa-YNA.|Mafic volcanic rock dominant; metamorphosed; amphibolite; may include fine- to medium-grained porphyritic hornblende-plagioclase rock; locally includes metagabbro and metaleucogabbro.||||Y||15-SEP-23
Narryer Terrane - metamorphosed peridotite #83993|83993|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2630||||Eoarchean|3730|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-mat-YNA|Fine- to medium-grained, serpentine-talc-magnetite-calcite(-tremolite-titanite) rock after peridotite.||||Y||15-SEP-23
Narryer Terrane - siliciclastic metasedimentary rocks #83987|83987|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Eoarchean|3730|||||||No|||||||Incorporates the following map symbols from the WA IBG dataset: A-mhs-YNA, A-xmh-mi-YNA, A-mtq-YNA.|metasedimentary siliciclastic rocks: psammite and pelite; interlayered; schistose and gneissic; may contain meta-iron formation and foliated quartzite; minor quartz-diopside gneiss||||N||15-SEP-23
Narryer Terrane - ultramafic volcanic rocks #83994|83994|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3100|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-u-YNA, A-mu-YNA, A-xmu-mw-YNA.|Ultramafic rock, undivided; metamorphosed; locally deeply weathered; may include ultramafic schist interleaved with mafic schist.||||U||15-SEP-23
Narryer Terrane granitic rocks #83995|83995|Narryer Terrane - granitic rock 83767|83767|||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2608||||Eoarchean|3731|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-g-YNA
Compare with Narryer Terrane - granitic rocks 83767 used in GA  2012 surface geology.|Granitic rock, undivided; metamorphosed||||Y||15-SEP-23
Narryer Terrane metagranitic rocks #83996|83996|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2608||||Eoarchean|3731|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mg-YNA, A-xmgn-g-YNA, A-xmgn-mb-YNA, A-mgn-YNA, A-mgms-YNA, A-mgss-YNA.|Granitic gneiss and granitic rock; may include granodiorite, muscovite granite, amphibolite, ultramafic rock, foliated biotite metamonzogranite, metagranodiorite, metasyenogranite, metapegmatite, and metabasaltic rock||||Y||15-SEP-23
Nathan Group|26072|||||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Calymmian||||deposition|Statherian||||||1550|NT|No|39791|45162|||||Previously mapped (Dunn, 1963a,b,c) as Mount Birch Sst, Kookaburra Creek Fm and Yalwarra Volcanic Mbr (McArthur Group).  Differences in lithology have led to redefinition to comprise Mt Birch Sst, Knuckey Fm, Yalwarra Volcs and Walmudga Fm. Age:< 1640 Ma. Radiometric ages from ?tuffite in Balbirini Dolostone (middle of Group).|Cyclic coarse-grained evaporitic-stromatolitic-ooidal dolostone, sandstone, siltstone; minor conglomerate; synsedimentary basaltic sills, sandstone, mudstone|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Navajo Sandstone|77536|Navajo sandstone|39345|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2640||inferred|deposition|Neoarchean|2657|4|isotopic, U/Pb-Pb/Pb ion probe|deposition||250|WA|No|66880||||||Detrital zircons 2657 +/- 4 Ma. See also GSWA Explanatory Notes: https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=4769 .|Quartz-rich sandstone with subordinate cobble--pebble conglomerate; tabular to trough cross-bedding; local clast-supported conglomerate; metamorphosed.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Navigator Monzogranite|78534|||||Yes|Formation, beds|Reserved|Reserved|Described|||||||||intrusion|||||||||No|70153||Hall, C. (GSWA)|07-NOV-13|||Lake Lefroy 1:100k sheet area. Biotite monzogranite. To be published = East Yilgarn 2013-14 update, Geological Survey of Western Australia digital product|Biotite monzogranite|acid intrusive rock|||Y||17-JAN-23
Neale Formation|13940|Neale Beds|23867|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|41751|||||||Partly stromatolitic dolomite, limestone and chert with minor quartzite|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Neale Supersuite|81033|||||Yes|Supergroup|Informal|Other new published name|Mentioned|||||Paleoproterozoic|||inferred||Neoarchean|||inferred|||||No|72034||||||Mentioned as parent unit. Age assumed from constituents. No other data. Includes Hercules Gneiss.|||||Y||17-JAN-23
Nebo-Babel intrusion|77414|Nebo-Babel Intrusion|73603|||Yes|Formation, beds|Informal|Variation of published name|Briefly described||||||||||||||||||No|65693||||||Uncapitalised variation of Nebo-Babel Intrusion. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Gabbronorites, hosting orthomagmatic Cu-Ni-PGE mineralization.||||Y||17-JAN-23
Neereno Sandstone|13960|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Billeranga Subgroup|25785|||Proterozoic||||deposition|Proterozoic||||||||No|36872||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Neerigen Formation|26073|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cardup Group|3601|||Neoproterozoic||||deposition|Neoproterozoic||||||23.6|WA|No|30939|36293||||||Interbedded fine to medium grained, micaceous, poorly sorted, thin to medium bedded sandstone interbedded with fissile, in part sandy and silty, shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Negri Subgroup|27520|Negri Group|13964|||Yes|Subgroup|Formal|Unknown or process pending|Described|Goose Hole Group|23629|||Late Cambrian||||deposition|Middle Cambrian||||||530||No|41840||||||Not same as Negri Volcanics. Of the Goose Hole Group. Includes: Headleys Limestone, Nelson Shale, Linnekar Limestone, Panton Formation.|Micritic and stromatolitic limestone and chert; siltstone, calcareous mudstone; minor feldspathic sandstone.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Neil Creek Monzogranite|34469|Neil Creek|30068|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|50437||||||Age updated by I.Sweet.|Fine- to medium-grained, weakly porphyritic monzogranite|acid intrusive rock|||Y||17-JAN-23
Nellie Tonalite|13975|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|30898||||||King Leopold Orogen.|Foliated medium grained hornblende biotite tonalite, diorite, and granodiorite, with minor pegmatite; chloritic schist and quartz veining associated with shears and along contacts|acid intrusive rock|intermediate intrusive rock||Y||22-SEP-23
Nelson Rocks Formation|75828|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Turonian||||deposition|Aptian||||||||No|13255||||||Originally reserved as Nelsons Rocks Formation in 1987 and subsequently used informally for offshore Canning Basin Cretaceous unit.|||||N||17-JAN-23
Nelson Shale|13990|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Negri Subgroup|27520|||Middle Cambrian||||deposition|Middle Cambrian||||||183|WA|No|44965|41840|||||Of the Negri Subgroup (Goose Hole Group).|Maroon and grey gypsiferous shale and mudstone, minor sandstone, laminated limestone.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Neoproterozoic amphibolite-facies metamorphics 76678|76678|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||||Neoproterozoic|560|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Note: numerical Min Age = Cambrian in both AGSO 1996 and GTS 2004. CEB Feb-2012]|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Neoproterozoic granites 76645|76645|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ediacaran|615|||intrusion|Tonian|780|||||||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
Neoproterozoic granites 76668|76668|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ediacaran|600|||intrusion|Ediacaran|620|||||||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
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
Neoproterozoic sedimentary rocks 76672|76672|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ediacaran|560|||deposition|Cryogenian||||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Neoproterozoic sedimentary rocks 76676|76676|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Tonian|800|||deposition|Tonian|830|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Neoproterozoic to Ordovician sedimentary rocks 76670|76670|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Ordovician|450|||deposition|Neoproterozoic|750|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Neoproterozoic-Cambrian sedimentary rocks, Amadeus Basin 80965|80965|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cambrian|||inferred||Tonian|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone, minor siltstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Nerrely Leucogranite|73468|Opaline Well Granite|37209|||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean|2765|5||||||No|69300|||||||Biotite(--tourmaline)-bearing leucogranite; undeformed|acid intrusive rock|||Y||25-MAY-23
Netty Dolerite|29784|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|43038||||||Albany 1:1 mill sheet area.||basic intrusive rock|||Y||17-JAN-23
Never Can Tell Basalt|77939|Never Can Tell Formation|79816|||Yes|Formation, beds|Formal|Resvd name published|Fully described|Two Sisters Subgroup|77949|||Neoarchean|2680||inferred|eruption|Neoarchean|2720||inferred|||300||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Never Can Tell Bore. Map Sheet: SH51-1,  Wildara 3041. Basalt; fine-grained with local pyroxene-spinifex texture; includes fine-grained metamafic rock . To be published = GSWA geological map and explanatory notes, 2013/2014.|Basalt; fine-grained with local pyroxene-spinifex texture; includes fine-grained metamafic rock.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Neville Granodiorite|22528|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1860|3|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1861|12|isotopic, U/Pb-Pb/Pb ion probe|||||No|23601||Griffin T.J. & Tyler I.M.|09-DEC-92|||East Kimberly Region. Published 1992 GSWA Angelo 1:100 000 sheet. Also GSWA Rec 1995/4.  Age: 1865-1850Ma. Intrudes the Marboo Formation.|Medium to fine grained biotite granodiorite and tonalite and minor monzogranite; abundant metasedimentary inclusions near contact.|acid intrusive rock|||Y||17-JAN-23
New Formation|14051|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41751|||||||||||N||17-JAN-23
New Holland Sandstone|80126|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|71212||||||Local name.|Medium to very coarse-grained, locally pebbly to cobbly quartzofeldspathic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Newmarracarra Limestone|14108|Newmarracarra Beds""|25340|||Yes|Formation, beds|Formal|Other new published name|Defined|Champion Bay Group|25840|||Bajocian||||deposition|Bajocian|||||11.5||WA|No|48848|36293|||||See also Lexicon.|Yellow-grey, sandy or clayey limestone, rarely grading into calcareous sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Newtown Felsic Volcanics|35665|Newtown Felsic Formation|14118|||Yes|Formation, beds|Formal|Variation of published name|Described|||||||||eruption|||||||||No|23137||||||See also Newtown Felsic Formation and misspelling - Newton Felsic Formation.|||||N||17-JAN-23
Ngangganawili conglomerate|36892|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||deposition|||||||||No|23759||||||Briefly described|||||N||17-JAN-23
Ngarrutji Monzogranite|75378|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2659|8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2666|8||||||No|66116||Pawley, M. (GSWA)|16-JUL-09|||Rason 1:250k map sheet area. The Ngarrutji Monzogranite is a 2659 Ma pluton (GSWA SHRIMP age) in the northeast corner of the Yilgarn Craton. The biotite monzogranite intruded the folded greenstones of the Mount Venn greenstone belt, but is in turn cut by the shear zone that runs along the eastern side of the Mount Venn Igneous Complex. The name is derived from the Ngaanyatjarra name for Thatchers Soak. To be published in the very near future in several GSWA publications, including 1:100 000 maps and geochronology reports.|Medium- to coarse-grained monzogranite with biotite and local hornblende; minor granodiorite; local pegmatite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Ngumban Claystone Member|74797|||||Yes|Member, phase|Formal|Variation of reserved name|Fully described|Carolyn Formation|24214|||Sakmarian|||biozone|deposition|Sakmarian|||biozone|||50|WA|No|64502||||||SE52-9, Mount Ramsey. With the relegation of Carolyn Formation to informal status, this Member may be upgraded to a Formation of the Grant Group after further assessment (Backhouse and Mory, 2020 GSWA Report 207).|Siltstone with dropstones from pebble to boulder size of granite, basalt, limestone; minor sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Niagara Igneous Complex|78966|Niagara Layered Complex|31105|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|70153||Patison, N. (GSWA)|16-SEP-14|||Yilgarn Craton. Updating name to current terminology. To be published: Geological Survey of Western Australia online Explanatory Notes Database 2015|Mafic igneous complex containing gabbronorite, dolerite, anorthositic gabbro and quartz diorite; metamorphosed|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Niagara Layered Complex|31105|Niagara|22547|||Yes|Group, Suite|Formal|Variation of reserved name|Defined||||||||||||||||1000|WA|No|43478|43478|||||Reserved as Niagara. To be replaced by Niagara Igneous Complex [reserved SEP-2014].|||||Y||17-JAN-23
Nibil Formation|23873|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Carribuddy Group|3686|||Upper Ordovician||||deposition|Upper Ordovician|||||400||WA|No|40837|40837|P.Lehmann|20-JAN-84|||Includes the arandaspid Ritchieichthys nibili which provides biostratigraphic age constraint (Katian).|Grey, calcareous and less commonly dolomitic, mudstone locally grading to silty and argillaceous limestone and less commonly dolomite, with rare sandstone interbeds; minor halite; anhydrite is common.|fine grained siliciclastic rock|carbonate sedimentary rock||N||20-SEP-23
Nickol River Formation|14130|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Archean|3251|6||deposition|Archean|3269|2|||100|500||No|44477|44477|||||Age: <3.3Ga.  In the Pilbara Craton, West Pilbara Superterrane. Within the Pilbara Supergroup. Advised by Hickman, Apr 2014 that the Nickol River Formation is separated from the Roebourne Group by a regional unconformity, so is removed from the Roebourne Group (Hickman and Smithies, in prep.).See Hickman 2016. GSWA Report 160.|Chert, banded iron-formation, carbonate and ferruginous clastic sedimentary rocks, quartzite, conglomerate, felsic volcanic and intrusive rocks.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Nilemah Sand|80139|Nilemah Sands|14140|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Holocene|||inferred|deposition|Upper Pleistocene|||inferred|deposition|||WA|No|69558||||||Variably contains heavy minerals including ilmenite, zircon and rutile that form an orebody known as the Coburn heavy mineral sands or the 'Amy Zone'.|Red sand. Grading from sandy calcarenite adjoining the coast to quartz sand further inland.|regolith|||N||17-JAN-23
Nilling Formation|26808|Nilling Beds|14142|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|38998|||||||Fine- to very coarse-grained sandstone; variably pebbly, micaceous and silty.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||31-MAR-23
Nindibillup Dolerite|80585|Nindibillup Dyke Suite|78591|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Neoproterozoic|735||||Neoproterozoic|800||inferred|||||No|||Spaggiari, C., Wingate, M.T.D. (GSWA)|03-JUL-18|||Cuts the southern part of the Southern Cross Domain and Southwest Terrane of the South Yilgarn Craton. E-SE trending. Mafic dykes; west-northwesterly trending, variably magnetic; some exceeding 400 km in length; mostly interpreted from aeromagnetic data. GSWA preliminary age (data soon to be published) of 735 Ma (GSWA number 199025. See also GSWA ENS: Wingate, MTD and Spaggiari, CV (partial report), Nindibillup Dolerite (P_-_nd-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite/gabbro in outcrop.|basic intrusive rock|||Y||17-JAN-23
Nindibillup Dyke Suite|78591|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Early Cambrian|||inferred|intrusion|Stenian|||inferred|||||No|65487||||||Cuts the southern part of the Southern Cross Domain and Southwest Terrane of the South Yilgarn Craton. E-SE trending. Strongly magnetic to non-magnetic; may correlate with Early Cambrian dykes in the western Albany-Fraser Orogen. Mafic. Age unknown but crosscuts major structures of Albany-Fraser Orogen, so post-dates Stage II (1215-1140) and may correlate with Early Cambrian dykes in the western Albany-Fraser Orogen. Composition largely unknown.|Mafic.|basic intrusive rock|||Y||17-JAN-23
Nine Mile Monzogranite|14160|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42697|||||||Coarse-grained, porphyritic, biotite-bearing monzogranite;  penetrative foliation moderate to weak, strongest at contacts with greenstones; domal core to regional (D2) anticline.|acid intrusive rock|||Y||17-JAN-23
Ninety Seven Mile Formation|14165|Ninety Seven Mile Beds|14164|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|42710|||||||White to grey and partly epidotised quartzite, conglomeratic diamictite, phyllite and phyllitic siltstone, amygdaloidal basalt, chlorite schist, and minor meta-tuff and meta-rhyolite.|metasedimentary siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Ninety Seven Mile Formation and Elimberrie Formation|80968|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Informal grouping of units suitable for map scale. Oscar Range Sub-basin, Louisa Basin.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone, diamictite, siltstone, limestone, phyllite, quartzite, metabasalt, metatuff, and metarhyolite.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Ningbing Group|14166|Ningbing Limestone|14169|||Yes|Group, Suite|Formal|Other new published name|Described|||||Upper Devonian||||deposition|Upper Devonian||||||||No|40993|||||||Limestone reef complexes; cyanobacterial limestone, limestone breccia, shale and sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Ninghan Gabbro|79001|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Warriedar Suite|78997|Neoarchean||||intrusion|Neoarchean|2793||inferred|||||No|70830||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Ninghan Hsd, Ninghan 1:100k sheet area. 29deg 25'S 117deg17'E. Type area: peripheral areas of Mount Singleton. Intrusive into the base of the Singleton Basalt Member sequence.|Gabbro, gabbronorite and dolerite; pegmatitic leucogabbro in top contact zones of sills, and pyroxenite and minor peridotite at the base; metamorphosed.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Nita Formation|14193|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Sandbian|||inferred, biostratigraphic correlation|deposition|Darriwilian|||inferred, biostratigraphic correlation||50|216|WA|No|32648|69883|McTavish, R.A.||||Defined by R.A. McTavish (in Playford et al. , 1975). GSWA Memoir 2. Includes a supersequence boundary (recognised likely to be at the contact between the Leo and Cudalgarra Members.|Dolostone and limestone interbedded with lesser mudstone. Minor fine-grained sandstone also occurs.|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Nobb Well Intrusion|79739|Nob Well Intrusion|32782|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Paleoarchean|3308|4|inferred, intrusive relationship||Paleoarchean|3463|2|inferred, underlying unit|||600|WA|No|60429|60429|||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Coarse-grained serpentinite after peridotite, minor metapyroxenite.|metamorphosed ultramafic rock|||N||17-JAN-23
Noganyer Formation|14203|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean|2706|5||deposition|Archean|2714|5|isotopic, U/Pb|||||No|30959||||||Within the Norseman greenstones region.  Revised from Noganyer Group?|Sedimentary rocks; mainly banded iron-formation, sandstone and ferruginous sandstone; metamorphosed|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||31-MAY-23
Noingara Siltstone|14208|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Coomberdale Subgroup|4593|||Proterozoic||||deposition|Proterozoic|||||||WA|Yes|36872|36293|Low G.H.|15-JAN-75|WA SNSC|05-JAN-75|||siliciclastic sedimentary rock|||N||17-JAN-23
Nome Formation|25346|||||Yes|Formation, beds|Formal|Other new published name|Defined|Sahul Group|16515|||Rhaetian|203|||deposition|Carnian|230||||||NT|No|41532|42442||||||Interbedded sandstone, siltstone and shale; minor coal with minor shallow-marine limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Nooloo Formation|34890|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tarcunyah Group|31872|||Cryogenian||||deposition|Cryogenian||||||1000||No|23729|23590|||||Age: <830 Ma (poor age constraints) [form 1999 reference]. Considered Cryogeniain in 2005, 2009.|Thinly bedded to massive dolomite and limestone; minor thinly bedded fine to coarse sandstone and siltstone with interbedded pebbly sandstone, siltstone, shale commonly weathering red-purple|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Noondeening Orthogneiss|25347|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|38513||||||See also the informal Noondeeing gneiss.|||||N||17-JAN-23
Noondine Chert|14218|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Coomberdale Subgroup|4593|||Proterozoic||||deposition|Proterozoic||||||||No|40348||||||Probably supersedes Noondine Member?|Silicified, bedded, carbonate unit.||||N||17-JAN-23
Noongal Gabbro|79286|||||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Warriedar Suite|78997|Archean||||intrusion|Archean||||||||No|70226||||||Probable variation of reserved name Noongal Igneous Complex.|Pyroxenite and minor peridotite at the base of the intrusion with gabbro, leucogabbro, and dolerite towards the top; metamorphosed|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||31-MAY-23
Noonkanbah Formation|26080|Noonkanbah Series""|14224|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Kungurian||||deposition|Sakmarian||||||650|WA|No|44657|45153|||||See also Lexicon. Formerly known as the Noonkanbah Series (of Wade, 1937). Canning Basin. Gas prone. Previously included in Liveringa Group (in 1980s),|Marine fossiliferous calcareous and micaceous mudstone, siltstone and shale with limestone and fine to medium grained sandstone interbeds and minor granule conglomerate lenses.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||25-MAY-23
Noonyereena Member|75771|Narracoota Formation|13894|||Yes|Member, phase|Reserved|Variation of reserved name|Briefly described|Karalundi Formation|24332|||||||eruption|||||||||No|71484||Pirajno F.|17-SEP-10|||SG50-8, Peak Hill. A hill  and a pool in the northern part of the Doolgunna 1:100 K map sheet .Of the Karalundi Formation; ca 1.9 Ga Bryah Basin. These rocks formerly included in the Narracoota Formation, but field and petrographic evidence make it clear that these rocks do not belong in the Narracoota Fm. Basaltic hyaloclastite lavas,associated volcaniclastics, and dolerite sills intruding turbidite facies sedimentary rocks. To be published  in Australian Journal of Earth Sciences|Basaltic hyaloclastite and dolerite|basic volcanic rock|basic intrusive rock||N||17-JAN-23
Norcott Complex|14242|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|37471|||||||||||N||17-JAN-23
Norie Group|74802|||||Yes|Group, Suite|Formal|Variation of reserved name|Fully described|Murchison Supergroup|13501|||Neoarchean|2792|5|inferred, intrusive relationship|minimum depositional age|Mesoarchean|2825||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||For use in the complete revision of the Murchison Domain lithostratigraphy; to be published in GSWA Annual Review 2007-2008. Replaces the originally reserved, but unpublished, Norie Basalt (Watkins, 1987).|Metabasalt, felsic volcaniclastic rocks, and banded iron-formation; mafic schist derived from volcanic rocks; local amphibolite or metasedimentary rocks; strongly to weakly metamorphosed|metamorphosed igneous rock|non-carbonate chemical or biochemical sedimentary rock||N||31-MAY-23
Nornaculup Sand|73497|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Nornalup Zone - gneiss 83771|83771|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1280||inferred||Paleoproterozoic|1800||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Nornalup Zone gneissic unit', P_-mnqf-KKBN. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Layered quartz--feldspar+/-biotite(+/-hornblende+/-garnet) gneiss; protolith unknown|foliated metamorphic rock|||U||30-JAN-23
Nornalup Zone - metagranitic rocks 83772|83772|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1140||inferred||Paleoproterozoic|1815||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Nornalup Zone metagranitic unit', P_-jmgnn-mog-KKBN, and P_-xmg-gn-KKBN combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metagranitic and granitic rocks; undivided; granitic gneiss interlayered with metagabbro; may include intrusions of Recherche and Esperance Supersuites.|metamorphosed igneous rock|||Y||30-JAN-23
Norseman Formation|38518|Norseman Limestone|25349|||Yes|Formation, beds|Formal|Variation of published name|Described|Eundynie Group|6368|||Lutetian||||deposition|Lutetian||||||||No|23488||||||After Norseman Limestone of Gregory (1916).|Fossiliferous marine carbonate.|carbonate sedimentary rock|||N||17-JAN-23
North Head Limestone|14270|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Holocene||||deposition|Holocene|||||||WA|No|44998|45153|||||See also Lexicon.||carbonate sedimentary rock|||N||17-JAN-23
North Kimberley kimberlite|14271|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|41158||||||Probably an informal name for kimberlites found in the North Kimberley region.|||||Y||17-JAN-23
North Pole Monzogranite|36956|North Pole Adamellite|14274|||Yes|Formation, beds|Formal|Variation of published name|Described|Warrawoona Group|19508|Tambina Supersuite|68742|Paleoarchean|3459|18||intrusion|Paleoarchean|3459|18|isotopic, U/Pb|||||No|61252|||||||Biotite monzogranite; equigranular to weakly porphyritic.|acid intrusive rock|||Y||17-JAN-23
North Rankin Formation|27215|North Rankin Beds|23879|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Sinemurian||||deposition|Lower Jurassic|||||||WA|No|40617|40617||||||Interbedded sandstones and shales, generally coarsening-up, and clean blocky 20 to 30 m thick sandstones with sharp boundaries and poorly defined fining-upwards character.|siliciclastic sedimentary rock|||N||17-JAN-23
North Ravensthorpe pegmatites|73782|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||21||No|50542|||||||||||N||17-JAN-23
North Royal Formation|37213|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Eundynie Group|6368|||Lutetian||||deposition|Lutetian|||||||WA|No|24397||Clarke J.D.A.|29-APR-02|||After North Royal open pit at Norseman, where type section exposed. In article 64340 (Geology of Yardina...2008), p26,31, Clarke et al., 2003, shows that the North Royal Formation supersedes Lower Werrillup Formation and Pidinga Formation (misspelt Pindinga).|Non-marine to marginal-marine, fluviodeltaic to estuarine sediments:quartz sands, clay and lignite|regolith|||N||17-JAN-23
North Shaw Suite|34106|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Callina Supersuite|68674|Paleoarchean|3450||||Paleoarchean|3499|22||||||No|44150||||||Originally referred to 3 zoned granitic units of Shaw Granitic Complex (North Shaw Tonalite, Coolyia Granodiorite +an unnamed leucogranite). More recent mapping+SHRIMP show the leucogranite is not related - now named Pilga Leucogranite(Van Kranendonk 2006|Contains tonalites, granodiorites and diorites.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
North Shaw Tonalite|24433|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||North Shaw Suite|34106|Paleoarchean|3468|5||intrusion|Paleoarchean|3468|5|||||WA|Yes|39444|39444|S.L.Lipple, A.H.Hickman|27-FEB-74|WA SNSC|06-JAN-75|Card. In press according to DL1980.  Within the Shaw Granitoid Complex.|Meta hornblende tonalite to diorite; equigranular, with local plagioclase phenocrysts.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
North Star Basalt|14281|||||Yes|Formation, beds|Formal|Other new published name|Defined|Talga Talga Subgroup|17680|||Paleoarchean|3316|||eruption|Paleoarchean||||eruption||2000|WA|No|31309|31309|||||Comprises informally named sections (from base): Lower Ultramafics, Main Basalt, Thin Chert, Middle Ultramafics, Green Diorite Sills, Clastic Sediments, Upper Extrusives grading up into Big Chert (McPhee Fm). Within the Warrawoona Gp. (Pilbara Supergroup). Base age from Ar/Ar dating of hornblende in pyroxenite lens (van Koolwijk, 2001, AGSO-GA Record 2001/37 p102).|Chert, basalt and dolerite, amphibolite and amphibolite schist, mafic volcanic rock, iron-formation with local quartz sandstone, komatiitic basalt: all metamorphosed.|metamorphosed basic igneous rock|metasedimentary rock||N||17-JAN-23
North Whundo Intrusion|31686|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Radley Suite|68740|Archean||||intrusion|Archean|2925|||||||No|43822||||||Intrudes the Tozer Formation (Whundo Group). Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).. Part of the Sisters Supersuite.|Gabbro, leucogabbro, and dolerite; metamorphosed|basic intrusive rock|||Y||31-MAY-23
Northam gneiss|14285|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|38789|||||||||||N||17-JAN-23
Northampton Dolerite|80586|Northampton Dolerite Suite|80098|||Yes|Formation, beds|Reserved|Variation of published name|Described|||||Tonian|748||isotopic||Tonian|748||isotopic|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Dolerite dyke; northeast-trending. Northampton 250k. See also GSWA ENS: Wingate, MTD (partial report), Northampton Dolerite (P_-_no-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dyke.|basic intrusive rock|||Y||17-JAN-23
Northampton Inlier - gneiss 83774|83774|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1083||inferred||Mesoproterozoic|1150||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northampton Inlier gneissic unit', P_-mnqf-PJNO. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Quartzofeldspathic gneiss.|foliated metamorphic rock|||U||30-JAN-23
Northampton Inlier - metamorphosed mafic intrusive rocks 83775|83775|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1083||inferred||Mesoproterozoic|1150||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northampton Inlier metamorphosed mafic intrusive unit', P_-mog-PJNO. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metamorphosed gabbroic rock.|metamorphosed basic igneous rock|||Y||30-JAN-23
Northampton Inlier - metasedimentary rocks 83776|83776|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1083||inferred||Mesoproterozoic|1150||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northampton Inlier metasedimentary unit', P_-mdn-PJNO and P_-mtq-PJNO combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Quartzite and micaceous quartzite; significant quartz-feldspar gneiss;  paragneiss.|metasedimentary siliciclastic rock|||N||30-JAN-23
Northern Foreland - mafic and ultramafic rocks 83777|83777|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2660||inferred||Mesoarchean|2900||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northern Foreland mafic unit',  A-xmb-mu-AFON, A-mo-AFON and A-mb-AFON, and 'Northern Foreland ultramafic unit', A-mu-AFON and A-xmu-md-AFON all combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metamorphosed mafic and ultramafic rocks, both volcanic and intrusive; may include iron formation.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||30-JAN-23
Northern Foreland - metagranitic rocks 83778|83778|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|1140||inferred||Mesoarchean|3131||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northern Foreland metagranitic unit', A-mgn-AFON, A-mgm-AFON, A-xmgss-mgg-AFON, A-xmgm-mgr-AFON (age range all 3131-2500) and AP_-xmg-mo-AFON (age range 2800-1140), all combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|||||N||30-JAN-23
Northern Foreland - metasedimentary rocks 83779|83779|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1600||inferred||Mesoarchean|3000||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Northern Foreland unit', AP_-mtq-AFON and  'Northern Foreland metasedimentary unit', A-xmi-md-AFON combined. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Conglomerate, quartzite, and feldspathic metasandstone, BIF, chert, amphibolite and ultramafic volcanic rocks, metamorphosed.|metasedimentary rock|||N||30-JAN-23
Norton Metagabbro|31132|Norton metagabbro|39226|||Yes|Formation, beds|Formal|Other new published name|Mentioned|Tickalara Metamorphics|18130|||Orosirian||||intrusion|Orosirian||||||||No|43484||||||Name is possibly not current.  Mapped as part of the Tickalara metamorphics in GSWA 500K solid geology GIS (2008).|Metamorphosed gabbro: clinopyroxene-orthopyroxene-magnetite-plagioclase-quartz(-hornblende-biotite) mafic granulite|high grade metamorphic rock|||Y||17-JAN-23
Nuendah Formation|14333|Nuendah formation|14334|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cenozoic||||deposition|Cenozoic|||||||WA|No|41199|41199||||||||||N||17-JAN-23
Nullagine Group|69694|Nullagine Formation|26812|||Yes|Group, Suite|Formal|Variation of published name|Described|De Grey Supergroup|69685|||Mesoarchean|2930||inferred|deposition|Paleoarchean|3200||inferred|maximum depositional age||||No|61253||||||The term "Nullagine" was formerly used as Series or Beds to refer to rocks of the Fortescue Group; it is now used to refer to basin fill in Mosquito Creek Basin and comprises Coondamar and Mosquito Creek Formations.|Psammite and pelite, interbedded.|siliciclastic sedimentary rock|||N||17-JAN-23
Nullagine Supersequence|33830|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Described|||||Neoarchean|2725||||Neoarchean|2775|||||||No|22546||||||Age of base dated at 2775 Ma. 2772-2725 Ma.|||||N||17-JAN-23
Nullara Limestone|14360|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian|359|||deposition|Famennian|372|||||400|WA|Yes|30181|45153|Playford P.E. and Cockbain A.E.||WA SNSC|31-MAR-76|Defined (1981). Also interfingers with Windjana Limestone. Oil recovered from this unit, likely sourced from Gogo Formation. Sealed by Fairfield Group shale. Equivalent to Nullara Sequences 1+2.|Well-bedded cyanobacterial  fenestral, oolitic, and pelloidal limestone; locally dolomitized, sandy, and conglomeratic. Includes an unnamed unit of conglomerate, sandstone and siltstone in the Larrawa (Red Bluffs) area.|carbonate sedimentary rock|||N||17-JAN-23
Nullara Sequence|77576|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Described|||||Famennian|||||Famennian||||||||No|66127||||||Equivalent to the Nullara Limestone.||carbonate sedimentary rock|||N||17-JAN-23
Nullarbor Limestone|25355|||||Yes|Formation, beds|Formal|Other new published name|Defined|Eucla Group|6345|||Zanclean|5|||deposition|Middle Miocene|15.5||||20|45|SA|No|40425|32552|||||Most recent publications (2001-2003) suggest Middle Miocene to Early Pliocene age. Eucla, Fowler 1:250 000 digital editions 2015 says Eocene-Miocene. Previously of Eucla Group.|Limestone, bioclastic, micritic. Subtidal, platformal, above fair weather wave-base. Includes large benthic foraminifera and aragonitic material; well-cemented.|carbonate sedimentary rock|||N||17-JAN-23
Nulsen Slate Member|14379|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|30562|||||||||||N||17-JAN-23
Numbana Monzogranite|38012|Numbana Granite|26084|||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Neoarchean|2870|90||intrusion|Mesoarchean|2930|||||||No|24110||||||See also Numbana Granite (DEFINED).|Medium- to coarse-grained feldspar(--quartz) porphyritic monzogranite; massive to weakly foliated; local flow-aligned feldspar phenocrysts; local garnet-bearing pegmatite and granite dykes|acid intrusive rock|||Y||01-JUN-23
Nummana Member|14385|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Cheela Springs Basalt|3941|||Rhyacian|2250|||deposition|Siderian|2276|||||220||No|44729|||||||Marine to fluvial siltstone, sandstone, plus basalt and dolerite sills.|siliciclastic sedimentary rock|basic igneous rock||N||23-JUN-23
Nunnery Sandstone|14404|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Wooramel Group|25651|||Artinskian||||deposition|Artinskian||||||166|WA|No|44532|45016|||||See also Lexicon. SG50-6. Defn on Tech. File F/50-13. Equivalent to the Moogooloo Sandstone.||siliciclastic sedimentary rock|||N||17-JAN-23
Nura Nura Member|14410|Nura Nura Limestone|80356|||Yes|Member, phase|Formal|Variation of published name|Defined|Poole Sandstone|27680|||Artinskian|||biozone|deposition|Sakmarian|||biozone|||110|WA|No|44479|44998|||||Originally Nura-Nura Limestone of Wade (1937). See also the misspelt Nurra Nurra Member.|Calcareous fine sandstone; mudstone, thin bedded, ripple marked, wavy and flaser bedding, bioturbated, fossiliferous.|siliciclastic sedimentary rock|||N||17-JAN-23
Nurina Formation|26085|Madura Formation|10987|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Campanian||||deposition|Santonian||||||53|WA|No|41751|41751||||||Greensand, glauconitic sandstone and sandy siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Nyang Granite|14424|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Chararoo Supersuite|31955|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|40909||||||Gascoyne Province. Shown as -Pgml, -Pgmb & part of -Pgmt, -Pgbl on Winning Pool-Minilya 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Nyuless Sandstone|14447|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran||||deposition|Ediacaran|||||10|35|WA|No|44325|45047|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidean age.|Quartz sandstone and lithic sandstone; minor siltstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
O'Callaghans Granite|31860|||||Yes|Formation, beds|Formal|STRATLEX Entry|Briefly described|||O'Callaghans Supersuite|31858|Neoproterozoic|630||inferred, geochemical correlation|intrusion|Neoproterozoic|650||inferred, geochemical correlation|||||No|43868||||||Of  O'Callaghan's Supersuite. I-type (granodioritic) Minyari type reduced granite. Age: ~625Ma. Geological province: Paterson Province. May have been upgraded to O'Callaghans Suite?|Syenogranite.|acid intrusive rock|||Y|I-type|17-JAN-23
O'Callaghans Supersuite|31858|||||Yes|Supergroup|Formal|STRATLEX Entry|Described|||||Neoproterozoic|614|8|inferred, geochemical correlation||Neoproterozoic|654|||||||No|50436||||||Divided into 2 suites: Mount Crofton Suite (oxidised) and O'Callaghans Suite (reduced). See also misspelling O'Callaghan's Supersuite.|Equigranular even and medium-grained monzogranite to syenogranite which commonly grade into coarse porphyritic textures. Granite compositions are extremely variable.|acid intrusive rock|||Y|I-type|17-JAN-23
O'Donnell Formation|14452|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Speewah Group|17150|||Orosirian|1834|3|inferred, overlying unit|deposition|Orosirian|1841|17|isotopic, U/Pb-Pb/Pb ion probe|||260||No|44317||||||Age: c.1835Ma. Min depositional age 1834+/-3 Ma (felsic volcanics in Valentine Siltstone, higher in Speewah Group).|An overall fining-upward succession of poorly-sorted, coarse-grained, quartz-rich sandstone, lithic sandstone, pebbly sandstone, granule to pebble conglomerate, and chloritic siltstone and claystone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Oak Hill Gabbro|82251|Oak Hill Intrusion|78630|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|2753||inferred||Neoarchean|2665||inferred|||||No|||||||Used in GSWA Interpreted Bedrock Geology 2020 dataset. Probably replaces Oak Hill Intrusion.|Gabbro; relict cumulate texture; metamorphosed|basic intrusive rock|||Y||17-JAN-23
Oakover Formation|14474|Oakover beds|27216|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Quaternary|||inferred, lithostratigraphic correlation|deposition|Miocene|||inferred, lithostratigraphic correlation|||50||No|45923|44503|||||Defined 1966.|Lacustrine carbonate deposits; limestone and calcareous sandstone; includes undivided variously silicified limestone, silty limestone, calcareous sandstone, siltstone and marl.|carbonate sedimentary rock|||N||17-JAN-23
Odjick Formation|25361|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|41997|||||||||||N||17-JAN-23
Officer Basin sedimentary rocks 83734|83734|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Cambrian Series 2|||inferred||Ediacaran|||inferred|||||No|||||||Published in RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Ediacaran--Cambrian sedimentary rocks, Officer Basin P_E-sp-NO . Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone, conglomerate, and siltstone.|medium-coarse grained siliciclastic rock|||N||30-JAN-23
Old Leopold Hill lamproite|14517|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Older Granite|14525|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|38514||||||||acid intrusive rock|||Y||17-JAN-23
Oldham Sandstone|40749|Oldham Formation|33757|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Mesoproterozoic||||deposition|Mesoproterozoic|1200||inferred|||4000||No|50188|50188|||||Defined in RedID: 50188. Reserved as Oldham Formation.  Oldham Inlier (outlier of the Bangemall Basin?)|Silicified quartz sandstone, some pebbly lenses; trough cross bedded, minor rippled and planar bedded intervals.|siliciclastic sedimentary rock|||N||17-JAN-23
Olia Gneiss|14547|Olia Gneiss""|29905|||Yes|Formation, beds|Formal|Other new published name|Defined|Birksgate Complex|29906|Pitjantjatjara Supersuite|39078|Paleoproterozoic|1600||||Paleoproterozoic|1607||||||NT|No|44495|48864|||||Now obsolete in NT (pers.comm.Close, D., Mar'08), but remains current in SA.  See also ref: (1999) Petermann Ranges 1:250K Explan.Notes - replaced by Umutju, Pottoyu and Matururr Granite Suites.  Age: 1600 Ma. Age: >1607Ma (metamorphic age).|Gneiss, quartz-feldspar-biotite-hornblende, with minor schist, amphibolite and quartzite|high grade metamorphic rock|||Y||04-OCT-23
Olive Queen Gabbro|78999|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Warriedar Suite|78997|Neoarchean||||magmatic crystallisation|Neoarchean|2793|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|70226||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Olive Queen minesite, Yalgoo1:100k sheet area. 28deg 19'S 116deg50'E. Type area: Wadgingarra. Intrusive into the eastern part of the Yalgoo greenstone belt.|Very coarse-grained, commonly quartz-bearing gabbro with coarse spinifex-like granophyric texture with up to 10 cm crystals; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Oliver Formation|14550|||||Yes|Formation, beds|Formal|Other new published name|Described|Woodbine Group|20481|||Late Miocene|7|||deposition|Oligocene|25|||||||No|42053||||||Includes invalidly named Oliver Sandstone Member.|Mainly limestone and dolomite; minor sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Oliver Sandstone Member|37998|||||Yes|Member, phase|Invalid|Variation of published name|Briefly described|Oliver Formation|14550|||Langhian||||deposition|Aquitanian||||||||No|65680||||||Invalidly named sandstone subunit within Oliver Formation (which is dominantly limestone). This unit needs a distinctive new name!|Sandstones; predominantly quartzose, texturally sub-marine, and generally poorly sorted, grain-size very fine to very coarse|siliciclastic sedimentary rock|||N||17-JAN-23
Oliver Twist Granodiorite|14551|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42742|||||||Biotite granodiorite; locally monzogranitic; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Olympic Formation|14563|Olympic Member|14565|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ediacaran|580||inferred|deposition|Cryogenian|690|14|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|20|1100|NT|Yes|46865||Preiss W.V., Walter M.R., Coats R.P., Wells A.T.||Beyer, E., Normington,V.|08-DEC-15|Originally of Wells et al.(1967). Redefined in 2015. The Olympic Formation name has been used in both NT (Amadeus Basin) and in WA (Halls Creek Province) - misspelling of Olympio Fm. Together with the lateral equivalent, the Pioneer Sandstone, Olympic Fm is believed to correlate with Marinoan glacial strata of the Adelaide geosyncline. Recent U-Pb isotopic studies of detrital zircons from a sandstone bed within the Olympic Formation yielded a maximum depositional age of 690 +/- 14 Ma (Kositcin et al 2015).|A number of facies which include lenticular units of diamictite, sandstone, siltstone, conglomerate, shale, boulder clay and dolomite in varying proportions.|siliciclastic sedimentary rock|||N||17-JAN-23
Olympio Formation|14567|Olympio Creek Formation|14566|||Yes|Formation, beds|Formal|Other new published name|Defined|Halls Creek Group|27793|||Orosirian|1848|3|isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|1873|5|isotopic, U/Pb|maximum depositional age|1000|4000|WA|No|44317|45140|||||Age of alkaline volcanic rocks (Maude Headley Member): 1857 +/- 3 Ma. Interpreted as a submarine fan system. Max. depositional age from detrital zircons in greywacke: 1873+/-5 Ma.|Weakly metamorphosed, thin- to medium-bedded mudstone, siltstone, and matrix-supported quartz wacke, greywacke and arkose. Thicker metamorphosed coarse-grained to pebbly, clast-supported quartz sandstone units. Intermediate volcanics in Members.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Onedin Member|30595|||||Yes|Member, phase|Formal|Resvd name published|Defined|Koongie Park Formation|9793|||Orosirian||||deposition|Orosirian||||||150|WA|Yes|24173|23621|Orth K.|20-NOV-96|Hocking, R.|22-APR-99|Halls Creek & Angelo 1:100 000 sheet areas.  Of the Halls Creel Orogen.|Pelite, calc-silicate rock, metachert, and meta-ironstone. Includes felsic volcanics.  Hosts copper-lead-zinc deposits.|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Opal Gabbro|79853|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Yalgowra Suite|74829|Neoarchean|||||Neoarchean|||inferred, intrusive relationship|||||No|70830||Romano, S. (GSWA)|10-APR-17|||Pap sheet 2544 Meekatharra. Layered mafic-ultramafic sills, which intrudes into the middle of the Polelle Group stratigraphy. These sills have strike lengths of more than 40 km in the central part of the Abbotts greenstone belt.  Similar mafic-ultramafic intrusions of the Yalgowra Suite, some of which are dated (Ivanic et al., 2010), are found in the Meekatharra¿Wydgee greenstone belt farther south. To be published = MEEKATHARRA 100k , TIERACO 100k map sheets; Field guides.|Layered mafic-ultramafic intrusive rocks: dominantly gabbro with minor gabbronorite, leucogabbro and dolerite; weakly deformed, metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Opaline Well Intrusion|37208|Opaline Well Granite|37209|||Yes|Formation, beds|Formal|Variation of published name|Described|||Langenbeck Suite|68667|Mesoarchean|||inferred|intrusion|Mesoarchean|||inferred|||||No|24024||||||To replace Opaline Well Complex?? Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Gabbro and dolerite; local dunite, peridotite, pyroxenite and basaltic rock; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Ora Banda Gabbro|79353|Ora Banda Intrusion|78631|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2692||inferred|intrusion|Neoarchean|2702||inferred|||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies across the Davyhurst-Bardoc 1:100K GSWA map sheet areas. It forms part of the Eastern Goldfields Superterrane of the Yilgarn Craton. Supersedes Ora Banda Intrusion. Said to be historical name now re-used [where previously published?]. To be published: GSWA digital release 2016. See also GSWA ENS: Wyche, S and De Paoli, MC (partial report), Ora Banda Gabbro (A-_ob-xo-a): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Gabbro to leucogabbro dominant; granophyric segregations; pyroxenite or dunite basal segregations; metamorphosed.|basic intrusive rock|metamorphosed ultramafic rock||Y||17-JAN-23
Ordovician sedimentary rocks 76683|76683|||||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
Orinda Gabbro|23887|Orinda Intrusion|78632|||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Neoarchean||||intrusion|Neoarchean||||||||No|42436||W.K.Witt|02-NOV-87|||Briefly described in Swager et al (1990) Table 1 p6, and later publications as Orinda Sill, then subsequently Orinda Intrusion. Now (2016) Orinda Gabbro name has been reinstated. It forms part of the Eastern Goldfields Superterrane of the Yilgarn Craton. Lies across the Davyhurst-Bardoc-Kalgoorlie 1:100K map series sheets. To be published = GSWA digital release 2016.|Gabbro to leucogabbro dominant; locally granophyric; metamorphosed.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Oroya Shale|83021|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Neoarchean|||inferred||Neoarchean|||inferred|||||No|73300||||||Overlies the Paringa Basalt, underlies the Aberdare Dolerite, ?Golden Mile Dolerite, Black Flag Basalt.|||||N||17-JAN-23
Orpheus Supersuite|68743|||||Yes|Supergroup|Formal|Other new published name|Fully described|||||Mesoarchean|3010|||intrusion|Mesoarchean|3025|||||||No|64174||Van Kranendonk, M.|13-APR-05|||Includes 8 granites including Andover and Bullock Hide Intrusions. For use on the DAMPIER map sheet; nearest town is Dampier.|Granodiorite, monzogranite, dacite, and granophyre, and ultramafic--mafic intrusive rocks; local monzodiorite; metamorphosed|basic intrusive rock|metamorphosed igneous rock||Y||17-JAN-23
Osborne Formation|14663|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Coolyena Group|4565|||Turonian|||inferred, biostratigraphic correlation|deposition|Albian|||inferred, biostratigraphic correlation|||97|WA|No|71790|36293|||||Defined McWhae et al.(1958); redefined 1995 to include 3 Members.|Interbedded sandstone, siltstone, shale, and claystone; characteristically glauconitic.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Oscar Range Group|14667|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Cryogenian|||||Neoproterozoic|830||inferred, geological correlation|||||No|43819||||||Age: ~830 Ma, based on correlation with Ruby Plains Group, Wolfe Basin, and the occurrence of Linella avis (restricted to 850-800 Ma rocks)in the Wolfe Basin rocks. Variation on Oscar Range Succession.  Not related to old Oscar Formation (Devonian limestones), but both described in Lennard River, Canning Basin. Age evidently poorly constrained and previously considered to be in Mesoproterozoic to Neoproterozoic age. More recently considered Neoproterozoic & part of Oscar Range sub-basin, Louisa Basin.|Sandstone, siltstone, shale, conglomerate, and altered mafic igneous rock.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Osmington Seam|74640|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Rosabrook Coal Measures|34565|||Cisuralian|||||Cisuralian||||||4||No|22820||||||This seam is at its thickest and most extensive on the Vasse Shelf - constituting more than 30% of the identified coal resource, thus making it a prime mining target.|Seam thickness is generally between 2 to 4 metres.||||N||17-JAN-23
Osprey Formation|14669|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sahul Group|16515|||Ladinian||||deposition|Anisian|||||||NT|No|41532|42442|A.J.Mory|02-DEC-86||||Interbedded shale and sandstone; minor carbonate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Otorowiri Formation|40565|Otorowiri Siltstone|14679|||Yes|Formation, beds|Formal|Variation of published name|Described|Parmelia Group|40563|||Berriasian|||inferred, biostratigraphic correlation|deposition|Upper Jurassic|||inferred, biostratigraphic correlation|||||No|50108||||||Supersedes the Quinns Shale Member; that unit's type section is suggested as a reference section for the Otorowiri Formation in the Vlaming Sub-basin (see Backhouse, 1984). Also supersedes the Otorowiri Member of the former Parmelia Formation.|Micaceous siltstone, shale, minor glauconitic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Outcamp Bore Tonalite|75853|Outcamp Bore tonalite|72447|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Neoarchean|2719|5|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2719|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|64775||||||See also Outcamp Bore tonalite.||acid intrusive rock|||Y|I-type|17-JAN-23
Overland Sandstone|28141|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Elder Subgroup|26535|||Late Cambrian||||deposition|Late Cambrian||||||230||No|41840||Trendall, A.F.|12-APR-83|||For a report on the Bonaparte and Ord Basins. Of the Elder Subgroup (Goose Hole Group).|White, fine to medium lithic arkose and sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Owen Monzogranite|83386|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|||||Neoarchean|2655|15|isotopic, U/Pb-Pb/Pb ion probe|||||No|73391||||||Apparently a formalisation of Unit No. 83343 (Owen monzogranite). One of two major batholiths in the north Kalgoorlie district. Possibly composite. ~9 km N of Mount Pleasant.|Light grey, foliated, medium- to coarse-grained, weakly feldspar-porphyritic biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Owens Gully Diorite|72706|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Callina Supersuite|68674|Paleoarchean|3462|||intrusion|Paleoarchean|3465.4|.6|isotopic, U/Pb-Pb/Pb, TIMS|||||No|64621||Hickman, A. (GSWA)|23-NOV-06|||For use on map sheet 2855; nearest town Marble Bar.  Intrudes Cotton Well Granodiorite. Dated: 3464+/-3Ma. To be published: June 2007 as MARBLE BAR sheet 2855, GSWA 1:100K Geological Series.|Foliated to gneissic meta quartz-diorite and local granodiorite.|intermediate intrusive rock|||Y||17-JAN-23
Oxley Chert|27871|Oxley Chert Member|14720|||Yes|Formation, beds|Formal|Unknown or process pending|Described|Billeranga Subgroup|25785|||Proterozoic||||deposition|Proterozoic||||||||No|36872|||||||Includes arkose, mudstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Pachpadra carbonatite|83844|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Proterozoic|||||Proterozoic||||||||No|||||||Named after the western Arunta WA1 Pachpadra Prospect. See https://www.investi.com.au/api/announcements/rcr/7da9ed53-457.pdf , https://www.listcorp.com/asx/lyn/lycaon-resources-limited/news/stansmore-carbonatite-nb-ree-project-presentation-2801156.html .|Carbonatite. Inlcudes Nb and REE minerals.|exotic composition igneous rock|||Y||27-APR-23
Padbury Group|27093|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Statherian|1620||||Orosirian|2005|||||10000|WA|Yes|29663|49896|Gee R.D.|14-AUG-79|WA SNSC|14-SEP-79|Formerly Nabberu Basin. Age poorly constrained.|Siliciclastic succession of conglomerate, quartz wacke, quartz arenite, and sericitic siltstone, overlain by a fine-gr.succession of BIF, hematitic and chloritic shale, feldspathic wacke and dolomite (See Ref: #49896)|siliciclastic sedimentary rock||foreland|N||17-JAN-23
Paddington Dolerite|14749|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||intrusion|||||||||No|41066||||||||basic intrusive rock|||Y||17-JAN-23
Paddy Market Formation|14753|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Soanesville Group|70124|||Mesoarchean|2950|||deposition|Paleoarchean|3225|||||1040|WA|Yes|31853|31853|Lipple S.L. and Hickman A.H.|04-MAR-74|WA SNSC|06-JAN-75|Previously included in the Soanesville Subgroup (Gorge Creek Group), NORTH SHAW 1:100k sheet area (2755). Also called Cleaverville Formation historically.  In the Pilbara Craton.  Reassigned to Soanesville Group when the subgroup was upgraded (03/06). Parts of this unit reassigned to the Cleaverville Formation in 2006 (Geology of Coongan 1:100k sheet).|Banded iron-formation, chert, siliciclastic sedimentary rocks, and local felsic volcanic rocks; metamorphosed|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||01-JUN-23
Padthureena Serpentinite|14772|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|32190|||||||||||N||17-JAN-23
Paleoproterozoic amphibolite-facies metamorphics 76621|76621|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1730||||Statherian|1750|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic amphibolite-facies metamorphics 76622|76622|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800||||Orosirian|2000|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic amphibolite-facies metamorphics 76623|76623|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1800||||Rhyacian|2200|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Medium-grade metamorphic rocks, generally with amphibolite-facies assemblages; may have a greenschist overprint|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic felsic volcanics 76580|76580|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1850|||eruption|Orosirian|1870|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanic rocks, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Paleoproterozoic felsic volcanics 76581|76581|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1870|||eruption|Orosirian|2000|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Mainly felsic volcanic rocks, including lavas and tuffs. Association may include volcaniclastic rocks.|acid volcanic rock|||N||17-JAN-23
Paleoproterozoic granites 76583|76583|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1670|||intrusion|Statherian|1800|||||||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
Paleoproterozoic granites 76585|76585|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1760|||intrusion|Statherian|1770|||||||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
Paleoproterozoic granites 76586|76586|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||intrusion|Orosirian|1850|||||||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
Paleoproterozoic granites 76587|76587|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||intrusion|Rhyacian|2200|||||||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
Paleoproterozoic granites 76588|76588|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1850|||intrusion|Orosirian|1870|||||||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
Paleoproterozoic granulite-facies metamorphics 76582|76582|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1600||||Statherian|1700|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76598|76598|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1720||||Statherian|1750|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76599|76599|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1760||||Statherian|1790|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76600|76600|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800||||Siderian|2500|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76601|76601|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1820||||Orosirian|1865|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic granulite-facies metamorphics 76602|76602|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1870||||Orosirian|2000|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleoproterozoic mafic intrusives 76574|76574|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1790|||intrusion|Statherian|1800|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|||Y||17-JAN-23
Paleoproterozoic mafic intrusives 76575|76575|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||intrusion|Orosirian|1850|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|||Y||17-JAN-23
Paleoproterozoic mafic volcanics 76570|76570|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||eruption|Orosirian|1820|||||||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
Paleoproterozoic mafic-ultramafic intrusives 76576|76576|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1820|||intrusion|Orosirian|1855|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [which is correct, age name Statherian or numbers = Orosirian?]|Dolerite, gabbro and other mafic igneous rocks; commonly as dykes and sills; may include some metamorphosed mafic intrusions and subordinate ultramafic rocks.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Paleoproterozoic sedimentary rocks 76605|76605|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1700|||deposition|Statherian|1790|||||||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
Paleoproterozoic sedimentary rocks 76606|76606|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1700|||deposition|Orosirian|1830|||||||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
Paleoproterozoic sedimentary rocks 76607|76607|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Statherian|1720|||deposition|Statherian|1750|||||||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
Paleoproterozoic sedimentary rocks 76608|76608|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||deposition|Orosirian|1840|||||||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
Paleoproterozoic sedimentary rocks 76609|76609|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1800|||deposition|Orosirian|2000|||||||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
Paleoproterozoic sedimentary rocks 76610|76610|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1840|||deposition|Orosirian|1875|||||||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
Paleoproterozoic sedimentary rocks 76611|76611|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1850|||deposition|Orosirian|1870|||||||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
Paleoproterozoic sedimentary rocks 76613|76613|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|1870|||deposition|Orosirian|2000|||||||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
Paleoproterozoic sedimentary rocks 76614|76614|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Orosirian|2000|||deposition|Orosirian|2015|||||||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
Paleoproterozoic sedimentary rocks 76615|76615|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Rhyacian|2050|||deposition|Rhyacian|2150|||||||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
Paleoproterozoic sedimentary rocks 76616|76616|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Rhyacian|2200|||deposition|Siderian|2450|||||||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
Paleoproterozoic to Mesoproterozoic granulite-facies metamorphics 76595|76595|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|1600||||Paleoproterozoic|1700|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset. [Are the numerical ages meangingful? Is the unit Statherian? Or is the age much less well known? CEB Feb 2012]|High-grade metamorphic rocks, generally with granulite facies assemblages; includes granitic gneisses|high grade metamorphic rock|||N||17-JAN-23
Paleozoic siliciclastic units, Canning Basin 80959|80959|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleozoic|||inferred||Paleozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Eastern Canning Basin. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Palkapiti Formation|75245|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2770|3|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean|2769|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|66116||Mark Pawley (GSWA)|10-JUN-09|||For use on map sheet SH 51-3; nearest town is Cosmo Newbury. Located in the Mount Venn greenstone belt. Dated at c.2770 Ma (GSWA SHRIMP age). To be published in several GSWA publications in near future, including 1:100K maps and geochronological reports. Two volcanic units have ages of 2770 +/- 3 Ma.|A package of felsic volcanic and volcaniclastic rocks ranging in composition from andesites to rhyolites; texturally the unit includes coherent flows, breccias and volcaniclastic sandstones. All metamorphosed.|igneous volcanic rock|||N||17-JAN-23
Pallas Athena Microgranite|77506|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|70153||Hall, C. (GSWA, Kalgoorlie)|11-OCT-12|||Map sheet: 3235, Lake Lefroy. Granitic rock that is not exposed, but is located by aeromagnetic images and diamond drilling at the southern end of the St Ives Goldfields mining camp at Kambalda.  Intrusive, but textures are fine-grained thus given 'Microgranite" qualifier. To be published: Geological Survey of Western Australia Digital product release 2013.|Plagioclase-biotite microgranite; plagioclase microphenocrysts; massive to strongly foliated; metamorphosed.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Pallinup Formation|14796|Pallinup Siltstone|14799|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Plantagenet Group|15310|||Late Eocene||||deposition|Late Eocene||||||61|WA|No|32648||||||Of the Eundynie Group in 2004? Of Plantagenet Group in 2010.|Claystone, siltstone, sandstone; fossil sponges and molluscs.|siliciclastic sedimentary rock|||N||17-JAN-23
Pandanus Yard Monzogranite|31890|Pandanus Monzogranite|22620|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43863||Sheppard S., Tyler I.M., Griffin T.J.|18-NOV-94|||East Kimberley region. Different unit from Pandanus Siltstone Member (NT).|Cream to pale-grey, medium-grained, weakly porphyritic to evenly textured biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Pander Greensand|14813|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Carlton Group|3629|||Lower Ordovician||||deposition|Furongian|||||||WA|No|45038||||||See also Lexicon. Age: ~500Ma [form 1989 referernce].|Glauconitic quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Panglo Formation|79385|Panglo conglomerate|83387|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2657||inferred|deposition|Neoarchean|2640||inferred|||||No|71270||De Paoli, M. (GSWA)|08-MAR-16|||Map Sheet =SH51-09 Kalgoorlie,  3137 Bardoc 1:100k. Nearest Town = Kanowna. Sandstone and conglomerate with minor shale; metamorphosed. The Panglo Formation is found to the southwest of the Kanowna-Scotia dome and is thought to be a late basin sequence (sandstone, shale to black shale units, conglomerate units) that are equivalent to the Kurrawang Formation to the West (they are of the same level structurally - but separated by 200 km's of distance, i.e., they both overlie the Black Flag Group). The age range is difficult to ascertain and for now is assigned to the same ages as the Kurrawang. Reference Davis, B. K., et al., Precambrian Research 183 (2010) 316-337.  To be published = GSWA digital package 2016.|Sandstone and conglomerate with minor shale; metamorphosed.|siliciclastic sedimentary rock|||N||17-JAN-23
Panhandle Dolerite|80587|Panhandle Dyke Suite|80099|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Orosirian|2007|16|isotopic, U/Pb-Pb/Pb ion probe||Orosirian|2008||inferred||||WA|Yes|72712||Wingate, M.T.D. (GSWA)|03-JUL-18|||Hamersley region. Panhandle Syncline located on Mount Lionel 100k. Also known in Mount Bruce, Turee Creek, Wyloo, Yarraloola, Newman 250ksheet areas. Dolerite; mainly northwest-trending dykes. Said to be dated by Muller et al. (2005) at 2008+/-10 Ma, a SHRIMP baddeleyite date of sills in the Hardey and Turee Creek synclines. See also GSWA's ENS: Wingate, MTD (partial report), Panhandle Dolerite (P_-_pa-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Medium-grained dolerite.|basic intrusive rock|||Y||17-JAN-23
Panorama Formation|14834|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Salgash Subgroup|16559|||Paleoarchean|3427||isotopic, U/Pb-Pb/Pb ion probe|deposition|Paleoarchean|3446|5|isotopic, U/Pb||1300|1500|WA|Yes|31853|31853|Hickman A.H. and Lipple S.L.|15-JAN-75|WA SNSC|06-JAN-75|Within the Warrawoona Group (Pilbara Supergroup). Interfingers with upper part of Apex Basalt. Ages: 3454 +/- 1Ma (Thorpe et al, 1992a), 3470 +/- 2Ma and 3458 +/- 2Ma (Thorpe, 1991, written comm). Volcanics contemporaneous with Tambina Supersuite.|Quartz-porphyritic rhyolite; felsic tuffaceous and volcaniclastic rocks; volcaniclastic conglomerate and sandstone; quartz-rich sandstone; chert: all metamorphosed.|metamorphosed acid igneous rock|metasedimentary rock||N||17-JAN-23
Panton Formation|14839|Panton Shale|28906|||Yes|Formation, beds|Formal|Other new published name|Redefined|Negri Subgroup|27520|||Middle Cambrian||||deposition|Middle Cambrian||||||308|WA|No|44317|41840|||||Nothing to do with (Paleoproterozoic) Panton Suite. See also Hudson Formation, Eagle Hawk Sandstone. Within Goose Hole Group. Incorporates the former Panton Shale, Shady Camp Limestone, Negri River Shale, Corby Limestone, Hudson Shale.|Siltstone, mudstone, feldspathic sandstone, micritic and oncolitic limestone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Panton Suite|40198|Panton intrusions|31798|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Orosirian|||||Orosirian|1856|||||||No|69165||||||Nothing to do with (Cambrian) Panton Formation. The suite is equivalent to the Group I layered intrusions of Hoatson (2000), which includes the Panton, Big Ben, Mini, West McIntosh, South Melon Patch,  Springvale Track, West Panton, and West Robin Soak intrusions; the existing intrusion names are retained as informal names [advice from GSWA Dec 2013]. Age from Alice Downs Ultrabasics: 1856+/-2 Ma.|Metamorphosed layered mafic-ultramafic intrusions. Metadunite, metawehrlite, metalherzolite, metaperidotite; metachromitite layers; metagabbronorite, metagabbro, metanorite; meta-anorthosite.|metamorphosed ultramafic rock|||Y||17-JAN-23
Panton intrusion|77790|Panton intrusions|31798|||Yes|Formation, beds|Informal|Variation of published name|Described|||Panton Suite|40198|Paleoproterozoic|1856|2|inferred, geochemical correlation||Paleoproterozoic||||||||No|60498||||||Informal unit of Panton Suite [advice from GSWA Dec 2013]. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic-ultramafic intrusion: dunite, harzburgite, chromitite, amphibolite, gabbro, gabbronorite, norite, anorthositic gabbro, anorthosite, ferrogabbro, tremolite-antophyllite peridotite.|metamorphosed ultramafic rock|||Y||17-JAN-23
Paperbark Granite|22623|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian||||magmatic crystallisation|Orosirian|1854|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|43854||Sheppard S.|23-FEB-95|||East Kimberley region.|Medium- to coarse-grained, rapakivi-like granite; medium- to fine-grained biotite-hornblende monzogranite and granodiorite, locally rich in mafic inclusions|acid intrusive rock|||Y||17-JAN-23
Paperbark Supersuite|31788|Paperbark Suite|68815|||Yes|Supergroup|Formal|Variation of published name|Described|||||Orosirian|1850|||intrusion|Orosirian|1865|||||||No|50437||||||Age updated by I. Sweet. See also Paperbark supersuite. Shows magma-mingling of granites and gabbros.|Predominantly medium- to coarse-grained, I-type porphyritic biotite monzogranite and granodiorite. Includes porphyritic rhyolite to dacite, lavas, pyroclastic deposits; massive, fine- to medium-grained gabbro.|acid intrusive rock|acid volcanic rock||Y|I-type|21-SEP-23
Paperbark Supersuite - norite, gabbronorite, gabbro|74239|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Paperbark Supersuite|31788|Orosirian||||intrusion|Orosirian||||||||No|||Stewart, A.|30-APR-08||||Biotite-bearing norite, gabbronorite and minor gabbro; veins of intermediate hybrid rock; hybrid rock cut by veins of coarse-grained porphyritic tonalite and granodiorite.|basic intrusive rock|||Y||17-JAN-23
Papertalk Granite|79349|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies across Riverina 1:100K map sheet area.. It forms part of the Yilgarn Craton Granites. Named from Cassidy et al (2002; AMIRA P482/MERIWA M281). Also referenced to Papertalk Brook, WA (feature # WA100028750), which lies within the granite extent. To be published = GSWA digital release 2016|Strongly foliated metagranite and granitic schist.|metamorphosed acid igneous rock|acid intrusive rock||Y||17-JAN-23
Papulankutja Supersuite|77234|||||Yes|Supergroup|Formal|Other new published name|Described|||||Calymmian|1293||inferred|tectonic process|Calymmian|1402|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|67375|||||||Granodiorites and monzogranites.|acid intrusive rock|||Y||17-JAN-23
Paraburdoo Member|29988|Paraburdoo|22626|||Yes|Member, phase|Formal|Resvd name published|Fully described|Wittenoom Formation|20327|||Neoarchean|2570||inferred, overlying unit|deposition|Neoarchean|2590||inferred, underlying unit|||450||No|43064||||||Ages from Trendall et al (2004), RefID 60706.|Dolomite with minor chert and argillite partings. Thin- to thick-bedded dolomite with minor amounts of chert and argillite and tabular bedding. Contains a spherule marker bed.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Paradise Formation|79399|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Paleoproterozoic|1997|10|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Paleoproterozoic|2083|7|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|||Johnson, S. (GSWA),  Korhonen, S., Sheppard, S., Roche, L.K., Occhipinti, S.A.|30-MAR-16|||Migmatitic pelitic gneiss forms rare, 5-10m wide, discontinuous strips up to 100 m long, intercalated with intermediate to felsic gneisses of the Dalgaringa Supersuite in the Paradise Zone around Paradise Well on GLENBURGH.The two youngest analyses of detrital cores yielded a concordia age of 2083 +/- 7 Ma, interpreted as a maximum age of deposition of the pelitic protolith. Seven analyses of zircon rims yielded a weighted mean 207Pb*/206Pb* date of 1997 +/- 10 Ma (MSWD = 3.3), interpreted as the age of high-grade metamorphism and migmatization. Reference: Johnson, SP, Korhonen, FJ, Sheppard, S, Roche, LK and Occhipinti, SA 2013, Paradise Formation (P_-_pw-mli): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 29 March 2016, <www.dmp.wa.gov.au/ens>|Migmatitic pelitic gneiss.|metasedimentary siliciclastic rock|||N||17-JAN-23
Paradise Well diatexite|80069|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Orosirian|||||Rhyacian||||||||No|69596|||||||||||Y||17-JAN-23
Parda Formation|26095|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Albian|||inferred|deposition|Aptian|||inferred||30|120|WA|No|44479|45153|||||See also Lexicon.|Mudstone, claystone; minor fine-grained sandstone; macrofossils.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Pargee Sandstone|14869|Pargee sandstone|14871|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Statherian|1640||inferred, geological correlation|deposition|Statherian|1768|14|isotopic, U/Pb-Pb/Pb ion probe||1300|1500|NT|No|29809|45140|||||Tentatively correlated with the Moola Bulla Formation (Halls Creek Orogen).  Age: ~1.77 - 1.64 Ga, based on combination of youngest detrital zircons dates, diagenetic xenotime growth, age of Limbunya Group rocks (which overlie Birrindudu Group).|Sandstone, conglomerate, siltstone; sublithic and lithic sandstone, quartz sandstone, conglomerate with jasperlitic and volcanic clasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Paringa Basalt|26833|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Hannans Subgroup|77860|||Neoarchean|2676|4|inferred, geological correlation|deposition|Neoarchean|2690|5|isotopic, U/Pb-Pb/Pb ion probe||500|1500|WA|Yes|68217||||||Basal age given is from interflow chert, high in the Paringa Basalt. Main ore host - gold mineralisation.|Basalt; massive, pillowed or with pyroxene-spinifex textures; minor thin, fine-grained sandstone and siltstone; metamorphosed; mafic schist.|basic volcanic rock|||N||16-AUG-23
Parker Hills Supersuite|74599|||||Yes|Supergroup|Informal|Other new published name|Mentioned||||||||||||||||||No|60555||||||Cassidy and Champion (2002).|Leucogranites to biotite-bearing monzonites, high-Ca.||||N||17-JAN-23
Parker Range Banded Iron Formation|14884|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||deposition|Archean||||||||No|42703|||||||||||N||17-JAN-23
Parker Range Member|40793|Parker Range dolerite|14885|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Glenayle Dolerite|40821|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|50319||Pirajno, F., Hocking, R.|16-APR-04|||Not related to the Archaean Parker Range BIF.Used on the Glen Ayle 1:100K mapsheet.|Fine- to medium-grained dolerite, commonly with pink granophyre zones; local superposition of sills indicated by l (lower) and u (upper).|basic intrusive rock|acid intrusive rock||Y||17-JAN-23
Parkeston Dolerite Member|80591|Parkeston Dolerite|79229|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Lakewood Dolerite|80590|||Proterozoic|541||inferred||Proterozoic|2500||inferred|||||No|||Wyche, S. , Wingate, M.T.D. (GSWA)|03-JUL-18|||Intrudes units of the Kalgoorlie Terrane in the Eastern Goldfields Superterrane (Yilgarn Craton). See also GSWA ENS: Wingate, MTD, Sapkota, J and Wyche, S (partial report), Parkeston Dolerite Member (P_-_lp-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 07 August 2018, <www.dmp.wa.gov.au/ens>.|Quartz dolerite.|basic intrusive rock|||Y||17-JAN-23
Parmelia Bank Shellsand|70570|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||deposition|||||||||No|61521||||||Probably a geomorphic unit rather than a stratigraphic one.|Well sorted carbonate sand.||||N||17-JAN-23
Parmelia Group|40563|Parmelia Formation|23893|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Berriasian|||inferred, biostratigraphic correlation|deposition|Upper Jurassic|||inferred, biostratigraphic correlation|||||No|50108||||||Age is Neocomian. Both Formation and Group seem to be in fairly current usage [CEB Sep2009]. Group clearly preferred by GSWA [CEB Oct 2020].|Predominantly sandstone; most formations recognized only in subsurface.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Parnell Quartz Monzonite|14908|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Bridget Suite|33103|Statherian|1731|14|isotopic, Rb/Sr|intrusion|Orosirian|1803|19|isotopic, U/Pb-Pb/Pb ion probe|||||No|41561||||||Nullagine 1:250 000 sheet area. Pilbara Province. Mosquito Creek Basin, Pilbara Craton.|Hornblende-biotite quartz monzodiorite.|intermediate intrusive rock|||Y||17-JAN-23
Parry Beach basaltic dyke|83645|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cambrian|||inferred||Stenian|1183|10|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|73480||||||Vertical and NW striking dyke at Parry Beach/Hillier Bay. Plagioclase 40Ar/39Ar analyses from PB1 yielded a disturbed spectrum with individual steps between 1700 and 1200 Ma.  Hosted in ortho- and paragneiss. Name used interhangeably with Parry Beach dyke.|Porphyritic basaltic andesite dyke.|intermediate volcanic rock|||Y||05-FEB-23
Paterson Formation|27874|Paterson Range Series""|14941|||Yes|Formation, beds|Formal|Variation of published name|Defined|Grant Group|7696|||Sakmarian|||biozone|deposition|Gzhelian||||deposition|33|400|WA|No|44479|45153|||||Also supersedes Wilkinson Range Beds, Yowalga Sandstone, Buck Formation. See also Lexicon. Defined 1961. Underlies Cronin Ss, Cuncudgerie Ss. Redefined 1981. Age based on Sakmarian microfossils. Replaces Wilkinson Range Beds and Yowalga Sandstone in Officer Basin. Formerly listed as part of the Officer Basin (Neoprot - Devonian), but is too young; also formerly included in old defn of Gunbarrel Basin, but now too old for that (CEB Dec 2011). Canning Basin. Recently (2020) recently restricted to scattered outcrops overlying Precambrian basement on the western side of the Canning Basin around the type section and farther south. Included in Grant Group.|Poorly sorted sandstone, claystone, conglomerate, tillite, siltstone, basal diamictite; varves and erratics in places - glacigene, lacustrine, to fluvioglacial.|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||20-SEP-23
Paulsen Volcanics|25384|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Archean||||eruption|Archean|||||||WA|No|35176|35218||||||||||N||17-JAN-23
Peak Hill Schist|34414|Peak Hill Metamorphic Suite|14968|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Paleoproterozoic|||||Archean|2670|||||||No|23748|65419|||||Considered together with Bryah and Padbury Group rocks to form a coherent tectono-metamorphic domain. Previously part of Glengarry Group. See also other variations on Peak Hill. Marymia Inlier, Yilgarn Craton.|Quartz sericite schist, quartz muscovite schist, calc-silicate schist, metabasite, mylonite.|metasedimentary siliciclastic rock|metasedimentary carbonate rock||N||17-JAN-23
Pear Creek Formation|40841|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Fortescue Group|6834|||Neoarchean|2729||inferred, overlying unit|deposition|Neoarchean|2740||inferred, underlying unit|deposition||1080||No|64326||Van Kranendonk, M.J.|27-APR-04|||Named after Pear Creek at 770300E 7681500N on the Coongan 1:00 000 sheet area. Used on the COONGAN and MARBLE BAR 1:100 000 map sheets. Within the Mount Bruce Supergroup.|Conglomerate and other siliciclastic rocks interlayered with basalt; clasts range from boulders to pebbles; dominantly basaltic clasts; granitic, felsic volcanic, and chert clasts present locally|siliciclastic sedimentary rock|basic volcanic rock||N||02-JUN-23
Pearce Formation|74047|Pearce Member|23895|||Yes|Formation, beds|Formal|Variation of published name|Defined|Hyland Bay Subgroup|77685|||Capitanian||||deposition|Wordian||||||||No|13242|13242|||||Supersedes Pearce Member (Hyland Bay Formation). Now in Hyland Bay Subgroup (Kinmore Group).|A lower unit of bioclastic limestone with abundant bryozoans and minor shelly debris, increasingly dominated by clastic rocks; upper unit of dark shale overlain by allochthonous bioclastic limestone with brachiopods, bryozoans and shelly debris.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Peawah Granodiorite|14987|Peawah Granite|38540|||Yes|Formation, beds|Formal|Other new published name|Described|||Indee Suite|40281|Mesoarchean|2948|5||intrusion|Mesoarchean|2948|5||||||No|30766||||||Intrudes the De Grey Group|Hornblende-biotite high Mg diorite, granodiorite, and tonalite; metamorphosed.|intermediate intrusive rock|acid intrusive rock||Y||17-JAN-23
Pedestal beds|27535|Pedestal Beds|15001|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Devonian|||inferred|deposition|Devonian|||inferred|||||No|36335||||||Described in GSWA Memoir 3 (1990) , [overlies?] SW Birrindudu Basin,  p351, 359, 360. Possibly Devonian.|Fine grained sandstone, planar bedded, laminated; conglomeratic sandstone with beds 30 cm - 1 m;laminated, silicified, ferruginous; conglomerate, well rounded cobbles and pebbles, thickly bedded, graded.|siliciclastic sedimentary rock|||N||17-JAN-23
Peepingee Greensand Member|15013|Peepingee Greensand|15015|||Yes|Member, phase|Formal|Unknown or process pending|Fully described|Nanutarra Formation|13794|||Cretaceous||||deposition|Cretaceous||||||11||No|39158|||||||||||N||17-JAN-23
Pegasus Dolomite Member|74168|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Sahara Formation|23950|||Llandovery|||inferred, overlying unit|deposition|Llandovery|||inferred, underlying unit|||5|WA|Yes|64643||Haines, P. (GSWA)|21-FEB-08|Hocking, R.|25-FEB-08|For use on map sheet JOANNA SPRING; nearest town Broome. Within the Carribuddy Group. Subsurface only. A valuable stratigraphic marker aiding well-correlation across Canning Basin.  Previously unnamed. To be published: GSWA Report, 2008.|Light-grey, hard, massive dolomite, stylolitic, with infilled subvertical fractures, microfaults, calcite filled veins, and minor vuggy porosity; argillaceous to silty dolomite.|carbonate sedimentary rock|||N||17-JAN-23
Pelican Rock Sand|73498|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Pelsart Limestone|15026|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|36890||||||||carbonate sedimentary rock|||N||17-JAN-23
Pender Bay Conglomerate|15034|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Cenozoic||||deposition|Cenozoic|||||||WA|No|44998|45153|||||See also Lexicon.|Fluviatile ferruginous boulder conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Penguin Formation|74044|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Goodwin Subgroup|75073|||Induan||||deposition|Changhsingian||||||||No|13242|13242|||||Proposed (March 2009, Gorter & Nicoll et al.) to be redefined as the basal unit of the Mount Goodwin Subgroup, Kinmore Group. Perviously of Hyland Bay Sub-group.|Claystone, carbonaceous siltstone and minor calcareous sandstone in upward-coarsening cycles.|siliciclastic sedimentary rock|||N||17-JAN-23
Penneshaw Formation|26838|Penneshaw Beds|25388|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoarchean|2930|4||deposition|Mesoarchean|2938|10|isotopic, U/Pb|||||No|30959||||||Within the Norseman greenstones region.|Metabasalt; interleaved units of coarser pyroxenite to dolerite; rare deformed pillows.|basic igneous rock|high grade metamorphic rock||N||17-JAN-23
Penny Dam Conglomerate|38641|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean|2650|||deposition|Archean|2671|3||||||No|23786||||||Thought to be equivalent to Mount Belches Formation (Swager 1995a, and Krapez ert al 2000).|Polymictic clast-supported conglomerates, sandstones and mudstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Pentecost Sandstone|15043|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Kimberley Group|9572|||Statherian|1704|14|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1774|9|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|1000|1375||No|44366||||||Defn on Tech File D/52-14. Max. thickness preserved in the Spider impact structure area: 600m. Xenotime overgrowths on zircon grains indicate a depositional or diagenetic age of 1704 +/- 14 Ma, considered a minimum age for the unit. Max.depositional age 1774+/-9 Ma U/Pb SHRIMP [RefID69099 Kimberley 2013 update]. [but said to be intruded by Hart Dolerite ~1784 Ma]. Kimberley Basin, North Australian Craton.|Quartz sandstone, pebbly sandstone, siltstone and claystone. An un-named lower unit of quartz sandstone, feldspathic sandstone, and micaceous siltstone, is mapped separately.|siliciclastic sedimentary rock|||N||17-JAN-23
Penzance Supersuite|81323|||||Yes|Supergroup|Informal|Other new published name|Briefly described||||||||||Neoarchean|2680||inferred|||||No|70020|||||||||||Y||05-FEB-23
Peppermint Grove Limestone|28917|Peppermint Grove Formation|15056|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kwinana Group|25141|||Holocene||||deposition|Holocene||||||||No|36293||||||Of Passmore (1970).|Calcarenite and calcirudite.|carbonate sedimentary rock|||N||17-JAN-23
Peringee Bore Granite|31963|Peringee Bore gneissic granite|30626|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Chararoo Supersuite|31955|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I., Bastrakova I.|25-NOV-97|||Used for Proterozoic granites project. Gascoyne Province. Included in -Pgbt on Winning Pool-Minilya 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Perkolilli Shale|23899|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Miocene||||deposition|Oligocene||||||40|WA|No|42535|43065|Commander D.P., Kern A.M.|19-SEP-89||||Comprises thick beds of massive kaolinite and smectite, with ferruginous, siliceous and calcareous overprints, and lenses of cross-stratified ferruginous gravel.|regolith|||N||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
Permian sedimentary rocks 76693|76693|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Lopingian|252|||deposition|Guadalupian|270|||||||No|||||||Unnamed unit used in the 1:2.5 million scale Geology of Australia dataset|Predominantly sedimentary rocks; includes sedimentary rocks of low metamorphic grade and diapiric breccias|sedimentary rock|||N||17-JAN-23
Pernatty Dolerite|26841|||||Yes|Formation, beds|Formal|Other new published name|Described|Kalgoorlie Group|26647|||Neoarchean|2696||inferred|intrusion|Neoarchean||||||500||No|42735|||||||Differentiated sill: basal pyroxenite to dolerite; granophyric phase in the upper section; metamorphosed.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Peron Sandstone|15071|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Pleistocene||||deposition|Pleistocene||||||122|WA|No|31949|||||||Red aeolian quartz sandstone with common soil concretions and root structures|siliciclastic sedimentary rock|||N||17-JAN-23
Perseverance Ultramafic Complex|38554|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Archean|||||Archean||||||||No|23862|||||||||||N||17-JAN-23
Pertatataka Formation|15094|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Ediacaran|582||inferred, biostratigraphic correlation|deposition|Cryogenian|635||inferred, biostratigraphic correlation||450|750|NT|Yes|48838|69438|Preiss W.V., Walter M.R., Coats R.P., Wells A.T.||Wells, A.T.|01-OCT-77|+Redefined in 1978. See card. The 730 +/- 45 Ma Rb/Sr  age  (Compston and Taylor, 1969) seems dubious. Age shown as 635 - 582 Ma in 2017 reference.|Mainly (320m) red and green siltstone and shale, with flaser bedding, small-scale cross-laminations and thin interbeds of fine-grained sandstone; overlain by 1.5m of grey medium-grained feldspathic silicified sandstone and 30m of red siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Perth Formation|69789|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Quaternary||||deposition|Quaternary||||||13.5||No|63745|63745|Gozzard, B. (DOIR, WA)|03-NOV-05|||For use on Map sheet 2034.  Different from South Perth Shale (Early Cretaceous).  Now proposed as new component to Kwinana Group by B.Gozzard (approved by R.Hocking but unpublished as yet) 24/1/08.PP.|Alluvial sands, silts and clays - a complex infilling a deep inset valley through Perth and upstream along the line of the present Swan River.||||N||17-JAN-23
Pertnjara Group|15099|Pertnjara Formation|15098|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Famennian|||biozone|deposition|Givetian|||biozone|||3650||No|44495||||||Where do numerical ages come from? An old time scale? Said to be similar age to Aztec Siltstone fauna, Antarctica [1993 ref].|Sandstone, siltstone, conglomerate, some limestone. Fish remains.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Peter Well Granodiorite|74953|Eelya Granodiorite|74878|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||Eelya Suite|74814|Neoarchean|2747|6||intrusion|Neoarchean|2747|||||||No|64891||Ivanic, T., Van Kranendonk, M. (GSWA)|16-JAN-09|||Geological province: Murchison Domain. High-HFSE. Subvolcanic intrusion into Greensleeves Formation.|Biotite granodiorite; weakly metamorphosed.|acid intrusive rock|||Y||20-JUL-23
Petermarer Monzogranite|35234|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Mesoarchean||||intrusion|Mesoarchean|2940|||||||No|24327||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets. Chillerina Granodiorite occurs as locally abundant inclusions within the Petermarer Monzogranite (RefID 68283).|Biotite monzogranite; strongly  K-feldspar porphyritic to seriate; massive to weakly foliated; locally with strong flow alighnment; locally abundant inclusions of Chillerina Monzogranite; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Petroglyph Gneiss|33449|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Tambina Supersuite|68742|Paleoarchean|3428||||Paleoarchean|3470|||||||No|23416||VanKranendonk M.|19-JAN-99|||North Shaw 1: 100 000 sheet area, east Pilbara. Includes sheets and patches of Kavir Granodiorite and Tambourah Monzogranite.|Migmatitic tonalitic orthogneiss with pegmatitic granite, granodiorite, and leucogranite sheets; porphyritic monzogranite; banded orthogneiss, migmatitic granodiorite and monzogranite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Petter Calc-silicate|33439|||||Yes|Formation, beds|Formal|Resvd name published|Described|Camel Hills Metamorphics|33276|||Paleoproterozoic|1944|5|isotopic, U/Pb-Pb/Pb ion probe||Paleoproterozoic|2608|4|inferred|||||No|22904||Tyler I.|09-NOV-98|||Gascoyne region. Mimimum age based on age of metamorphic rim. Maximum age of 2608+/-4 Ma is of deposition of protolith (from detrital zircons).|Coarse calc-silicate gneiss, para-amphibolite, and pelitic and psammitic schist, minor quartzite and quartz diopside rock.|metamorphic rock|metasedimentary carbonate rock||N||17-JAN-23
Phacopid Gully Bed|72568|||||Yes|Bed|Informal|Other new published name|Briefly described|Virgin Hills Formation|19137|||Frasnian|||||Frasnian||||||||No|62735||||||Informally named horizon within the Virgin Hills Formation - contains scutelluines. On the eastern side of McWhae Ridge.|||||N||17-JAN-23
Pidinga Formation|15170|||||Yes|Formation, beds|Formal|Other new published name|Defined|Eundynie Group|6368|||Late Eocene|36.5|||deposition|Lutetian|45|||||100|SA|No|23671|23671|||||Lower part of formation (Middle Eocene) superseded by Maralinga Fm. in SA and by North Royal Formation in WA. Upper part (Late Eocene) remains as the Pidinga Fm and Anthony Member.  Maralinga Fm. reduced to Maralinga Member, of the Pidinga Fm. (Hou / PIRSA, 2005). Previously [2004] of Plantagenet Group.|Interbedded, well-sorted, fine to coarse-grained carbonaceous sand and silt with minor lignite. Flood zone clays and lignite, fluvial/estuarine channel sands, gravelly (carboneous) coarse sands.|regolith|||N||17-JAN-23
Pierre Shale|40078|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24205||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Pig Well Formation|73392|Pig Well Conglomerate|40776|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||deposition|Archean||||||||No|65147||Groenewald, B. (GSWA)|08-JUN-07|Hocking, R.||To replace Pig Well Conglomerate|Polymictic conglomerate and wacke; minor shale; metamorphosed.|metasedimentary siliciclastic rock|||N||17-JAN-23
Pigeon Rocks Monzogranite|34922|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean|2729|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Archean|2729|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|22902||||||Johnston Range 1:100 000 sheet area (2738).|Biotite monzogranite; equigranular; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Piker Hills Formation|26102|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Famennian||||deposition|Famennian||||||300|WA|No|44397|45153|||||Reef complex.|Fossiliferous shallow marine reef to marginal slope and basin facies calcarenite, calcirudite, calcilutite, with minor interbedded shale and siltstone|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Pilbara Craton - granitic rocks 83780|83780|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2830||inferred||Eoarchean|3650||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Pilbara Craton granitic unit', A-g-P. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granitic rock; metamorphosed.|acid intrusive rock|||Y||30-JAN-23
Pilbara Craton - metabasite #83998|83998|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mwa-P, A-xmwa-g-P, A-xmws-mus-P, A-mog-P, A-moa-P.|Metamorphosed mafic rock; amphibolite including metagabbro and dolerite; mafic and ultramafic schist; foliated; fine- to medium-grained amphibole-plagioclase-quartz-sericite-epidote rock; granitic dykes and veins||||Y||15-SEP-23
Pilbara Craton - siliciclastic metasedimentary rocks #83997|83997|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mds-P, A-mhs-P, A-mhsc=P, A-mty-P, A-mtq-P.|Metasedimentary: psammite, pelite, and schist; interlayered; foliated; mylonitized metasandstone; quartzite, including quartz arenite; quartz pebble conglomerate; quartz-muscovite-sillimanite(-cordierite) and chlorite-actinolite assemblages.||||N||15-SEP-23
Pilbara Craton - ultramafic intrusive rocks #83999|83999|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-ma-P.|Metamorphosed ultramafic intrusive rock; metaperidotite||||Y||15-SEP-23
Pilbara Craton - ultramafic rocks #84000|84000|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mu-P, A-musr-P. Compare with 74283 used in GA  2012 surface geology.|Metamorphosed ultramafic volcanic or undivided rock; tremolite/actinolite–chlorite–talc schist assemblages||||U||15-SEP-23
Pilbara Craton greenstones - amphibolite after mafic intrusive 83781|83781|||Pilbara Craton - metabasite #83998|83998|Yes|Group, Suite|Obsolete|Unnamed published|Briefly described|||||Mesoarchean|2930||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as' Pilbara Craton greenstones' .A-moa-P. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Amphibolite derived from dolerite and gabbro; in sills and dykes.|high grade metamorphic rock|||Y||15-SEP-23
Pilbara Creek Monzogranite|35352|||||Yes|Formation, beds|Formal|Resvd name published|Described|Yule Granitoid Complex|33198|Sisters Supersuite|68741|Archean||||intrusion|Archean||||||||No|50370||Smithies R.H.|10-MAR-00|||Satirist 1:100k sheet area. Formerly informally known as Friendly Creek monzogranite.|Biotite-bearing monzogranite and syenogranite; leucocratic; weakly foliated to massive; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Pilbara Supergroup|15189|||||Yes|Supergroup|Formal|Other new published name|Defined|||||Mesoarchean|3190||||Paleoarchean|3525||inferred, intrusive relationship||15000|35000|WA|Yes|38498|39697|||||Revised stratigraphy (Van Kranendonk et al 2004) redefines supergroup as comprising: Warrawoona, Sulphur Springs, Gorge Creek and Kelly Groups. Age: <3515->2945Ma.  In Pilbara Craton. Gorge Creek Group now reassigned to De Grey Supergroup (GSWA 03/06).  A break in the volcanic activity of the predominantly volcanic Pilbara Supergroup, allowed for the deposition of the lithostratigraphic units of the Strelley Pool Formation to be deposited over the 75 million-yr period. Base age from Ar/Ar dating of pyroxenite lens in North Star Basalt (van Koolwijk, 2001, AGSO-GA Record 2001/37 p102).|Includes multiply-deformed and metamorphosed greenstones dominated by basalt, chert, banded iron-formation, ultramafic rocks, with locally abundant felsic and sedimentary rock.|metamorphosed igneous rock|||N||28-JUN-23
Pilbara Supergroup - mafic and ultramafic rocks #84001|84001|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|Pilbara Supergroup|15189|||Paleoarchean|3235||||Paleoarchean|3515|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-Pl-xb-f, A-PI-mwa, A-PI-xmwa-g, A-PI-xmb-mu, A-PI-ma, A-PI-mu, A-PI-xmus-g. Compare with 74465 used in GA  2012 surface geology. Compare with the following units used in GA 2012 surface geology: 77465.|Metamorphosed mafic and ultramafic volcanic and intrusive rock; amphibolite; locally schistose; intruded by granite veins||||Y||15-SEP-23
Pilga Leucogranite|42195|Pilga Station leucoadamellite|33905|||Yes|Formation, beds|Formal|Variation of published name|Defined|||Tambina Supersuite|68742|Archean|3300||isotopic, U/Pb-Pb/Pb ion probe|intrusion|Archean|3445|||||||No|50423|63441|||||Nomenclature revised in GSWA Record 2006/15 (Van Kranendonk). Formerly included in North Shaw Suite but recent mapping + SHRIMP indicate it is not related. Derived from the melting of sodic granitic protoliths in the core of Shaw Granitic Complex.|Quartz, plagioclase and K-feldspar, <5% biotite. Pegmatitic to medium grained, as DEFINED by Van Kranendonk (2006) for revised Pilbara stratigraphy - white-weathering,medium- to coarse-grained, varying from homogeneous to schleiric to weakly gneissic.....|acid intrusive rock|||Y||17-JAN-23
Pilgramunna Formation|15198|Pilgramunna formation|15199|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cape Range Group|3521|||Serravallian||||deposition|Serravallian||||||30||No|45015||||||See also Lexicon. Was part of Yardie Group - included in Cape Range Group in 1980.|Quartzose, cross-bedded calcarenite and coralgal limestone; shallow marine|carbonate sedimentary rock|||N||17-JAN-23
Pillara Limestone|25744|Pillara Formation|15204|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Frasnian|||biozone|deposition|Givetian|||biozone|||410|WA|No|44993|32647|||||See also Pillara Formation (amended by Read (1973) but generally not accepted, as the dominant lithology is limestone. Pillara Limestone is the preferred name (per email R.Hocking 27 Feb. 2008). PP. Interfingers with Sadler Limestone. Overlies Cadjebut Formation where that unit occurs.  GSWA petroleum prospectivity report (2004) suggests contained within the Gogo Formation?|Fossiliferous shallow marine reef complex platform facies; yellow to light grey medium bedded algal, stromatoporoid and coral limestone with calcarenite calcilutite and rare oolite.|carbonate sedimentary rock|||N||17-JAN-23
Pillara Monzogranite|30667|Pillara Range Granodiorite|28267|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43281||||||The name Pillara Limestone has precedence although this unit is differentiated by its igneous origins and age (1400m years older). King Leopold Orogen, West Kimberley region.||acid intrusive rock|||Y||17-JAN-23
Pillara Sequence|77577|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Described|||||Frasnian|||||Givetian||||||||No|66127||||||See also Pillara Limestone.||carbonate sedimentary rock|||N||17-JAN-23
Pimbyana Granite|31962|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Durlacher Supersuite|37648|Statherian|1673|15|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1675|11|||||WA|Yes|22660|61262|Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Included in -Pg on Edmund 1:250k map sheet. Defined by Sheppard, S. 10-MAY-2004. Intrudes Gooche Gneiss and Pooranoo Metamorphics. Intruded by Dingo Creek and Yangibana Granites.|Most abundant rock is a coarse-grained porphyritic to megacrystic biotite(-muscovite) monzogranite to syenogranite; fine- to medium-grained biotite tonalite and granodiorite are abundant in places.|acid intrusive rock|||Y||17-JAN-23
Pincher Well Volcanics|79282|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||eruption|||||||||No|68698|||||||||||N||17-JAN-23
Pincombe Formation|15228|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Carr Boyd Group|3663|||Cryogenian|891|149||deposition|Stenian|891|149||||||No|45047||||||Age: 891 +/- 149 Ma.|Siliceous siltstone and fine-grained sandstone, micaceous shale, quartz sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Pincunah Banded-Iron Member|78382|Pincunah Banded-iron Member|75916|||Yes|Member, phase|Formal|Variation of published name|Described|Cardinal Formation|70159|||Paleoarchean|3235|||deposition|Paleoarchean|3252|||||||No|69013||||||East Pilbara Terrane. Defined as Pincunah Member in 2006.Previously included at the top of the Kangaroo Caves Formation,Sulphur Springs Group. Being reassigned to the Cardinal Formation of the Soanesville Group. (A. Hickman pers com 4-JUN-2019). Explanation will be in Report and definition available soon.|Banded iron-formation; jaspilitic; minor layered chert and shale; metamorphosed.|metasedimentary non-carbonate chemical or biochemical rock|metasedimentary siliciclastic rock||N||17-JAN-23
Pincunah Monzogranite|40752|Pincunah Granite|35245|||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Mesoarchean|2930|||intrusion|Mesoarchean|2945|||||||No|50379||||||Name reserved as Pincunah Granite. Pilbara Craton|Moderately to strongly feldspar (-quartz)-porphyritic biotie (-hornblende) monzogranite; weakly to moderately foliated, typically with a strong phenocryst alignment; minor pegmatite and leucogranite.|acid intrusive rock|||Y||17-JAN-23
Pindar beds|75573|Pindar Beds|25398|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Proterozoic||||deposition|Proterozoic|||||||WA|No|65074||||||Defined as Pindar Beds in 1977. Described in GSWA Memoir 3 (1990) , NW Birrindudu Basin,  p351, 352, 355. May be lateral equivalent of Birrindudu Group. Mesoproterozoic.|Shallow marine cross bedded, medium to coarse quartz sandstone and sublithic sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Pindilya Formation|15231|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Miocene||||deposition|Miocene||||||27|WA|No|48823|33594|||||See also Lexicon. Defn on Tech File G/50-5. See also misspelt Pindiliya Formation.|Poorly sorted sandstone, commonly lithic; conglomerate; ?fluviatile; includes minor authigenic silcrete.|siliciclastic sedimentary rock|regolith||N||17-JAN-23
Pindinyah Formation|74466|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Tarcunyah Group|31872|||Neoproterozoic||||deposition|Neoproterozoic||||||||No|67202|||||||Carbonates, sandstone, conglomerate|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Pingandy Dolomite Member|23905|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Top Camp Formation|26179|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|40088|40089|A.T.Brakel, P.C.Muhling|24-JUN-77||||||||N||17-JAN-23
Pinjar Member|22658|||||Yes|Member, phase|Formal|Resvd name published|Defined|Leederville Formation|10291|||Aptian||||deposition|Valanginian||||||150|WA|No|12759|12759|Davidson W.A.|18-MAY-88|||Reservation extended. Onshore Perth Basin. Notified by A. Davidson 28-NOV-94.|Discontinuous, interbedded sandstones, siltstones and shales of marine and non-marine origin; individual sandstone beds c.3 to 6 m thick.|siliciclastic sedimentary rock|||N||17-JAN-23
Pinjarra Granite|38674|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||intrusion|||||||||No|23788||||||||acid intrusive rock|||Y||17-JAN-23
Pinjian Chert Breccia|15260|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Hamersley Group|8005|||Paleoproterozoic||||deposition|Paleoproterozoic|2400|||||||No|45923||||||See Definition card for Pinjian Breccia. This overlies Carawine Dolomite of Hamersley Basin. Formerly included in Hamersley Basin and included/excluded from Mount Bruce Supergroup.|Consists of angular fragments of chert and layered chert in a siliceous matrix; locally rich in iron and manganese oxides giving the rock a black to dark-brown colour and semimetallic lustre.|sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Pinjin Dolerite Member|80607|Pinjin Dyke|78633|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|2400||inferred, geochemical correlation||Paleoproterozoic|2420||inferred, geochemical correlation|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS: Wingate, MTD (partial report), Pinjin Dolerite Member (P_-_wp-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Mainly dolerite and gabbro; includes cumulate and granophyric differentiates|basic intrusive rock|||Y||17-JAN-23
Pinkerton Sandstone|15264|Pinkerton Beds""|15263|||Yes|Formation, beds|Formal|Variation of published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Cryogenian|||||30|375|NT|No|32310|48938|||||Victoria Basin.|Silica cemented quartz sandstone/orthoquartzite, minor siltstone and mudstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Pinnacle Hill Gneiss|68504|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Railway Supersuite|68669|Archean|3110|4|||Archean|3114|5||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Also, to be used on PINDERI HILLS sheet; nearest town Karratha. Ages: 3114+/-5, 3130+/-Ma. Intruded by Cliff Pool Tonalite.|Tonalite to granodiorite gneiss, generally compositionally banded with leucocratic layers of monzogranite and pegmatite; contains greenstone enclaves interpreted as xenoliths derived from the Whundo Group.|metamorphosed acid igneous rock|||N||17-JAN-23
Pinnacles Desert Member|78694|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Tamala Limestone|17719|||Pleistocene|.177|.03||deposition|Pleistocene|.182|.02||||||No|69788||Lipar, M. (La Trobe University)|17-FEB-14|||1:100k map sheet = 1936. Nearest Town = Cervantes.  Fine to coarse grained well sorted aeolianite, yellow coloured, poorly to well cemented, and with distinctive cross-bedding. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 7. To be published = This year (2014) in Australian Journal of Earth Sciences.|Consists of an eolian calcarenite/calcrete-microbialite/paleosol cycle.|carbonate sedimentary rock|sediment||N||17-JAN-23
Pinndinnis Granite|39348|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean|2664|5||intrusion|Archean|2664|5||||||No|24091||||||||acid intrusive rock|||Y||17-JAN-23
Pinto Basalt|79864|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Mesoproterozoic|||||Statherian|1600|||||||No|70802||||||Madura Province.|Basalt schist intruded by plagiogranite veins and pods.|metamorphosed basic igneous rock|||N||17-JAN-23
Pinyinna beds|15279|Pinyinna Beds|25401|||Yes|Formation, beds|Informal|Other new published name|Defined|||||Tonian|820||inferred, intrusive relationship|deposition|Tonian|1058|31|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||250||No|36701||||||Appears to be intruded by the Amata dolerite.  Age: probably 820Ma. Correlated with Bitter Springs Formation - which is Cryogenian age.|Grey quartz-muscovite phyllite, crystalline dolostone, fine-grained sandstone, red, green and pale grey fissile siltstone, dolomitic siltstone. Dominated by phyllite, interlayered with dolostone and minor schists in the north and Petermann Ranges.|metasedimentary siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Pioneer Monzogranite|75277|Pioneer Granitoid Complex|15283|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Archean||||intrusion|Archean||||||||No|65264||||||See also Pioneer Granitoid Complex. Are these the same unit? Related?|Foliated biotite monzogranite; gneiss enclaves.|acid intrusive rock|||Y||17-JAN-23
Pioneer Sandstone|15284|Pioneer Formation|15282|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Ediacaran|||inferred, geological correlation|deposition|Cryogenian|709|15||maximum depositional age||170|NT|Yes|46865|46865|Preiss W.V., Walter M.R., Coats R.P., Wells A.T.|01-OCT-76|Wells, A.T.|01-OCT-77|Overlies Areyonga Formation and Bitter Springs Formation. Correlated with Olympic Formation. NOT related to Pioneer beds and Pioneer Sandstone (TAS). Together with the lateral equivalent, the Olympic Formation, these units are believed to correlate with Marinoan glacial strata of the Adelaide geosyncline.|Pebbly arkose, feldspathic sandstone; dolomite in places; minor conglomerate at base in places.|siliciclastic sedimentary rock|||N||17-JAN-23
Pipeline Andesite|15287|Pipeline Andesite Member|23909|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Black Flag Group|28372|||Neoarchean|2704|8|isotopic, U/Pb-Pb/Pb ion probe|eruption|Neoarchean||||||||No|42735|||||||Andesite lava, tuff, volcanic breccia.|intermediate volcanic rock|||N||17-JAN-23
Pirgan Monzogranite|74833|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Tuckanarra Suite|74831|Neoarchean||||intrusion|Neoarchean||||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: ?2670Ma.|Monzogranite; weak solid-state overprint, typically increasing towards pluton margins; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Pirie Member|15292|Pirie Calcarenite|15290|||Yes|Member, phase|Formal|Variation of published name|Described|Cardabia Calcarenite|3589|||Paleocene||||deposition|Thanetian||||||||No|40617||||||See also Pirie Calcarenite Member - the lithological component does not form part of the formal current name (email per R. Hocking, May 2008).|||||N||17-JAN-23
Pirntirri suite|77235|||||Yes|Group, Suite|Informal|Other new published name|Described|||Pitjantjatjara Supersuite|39078|Ectasian|1205|6|||Ectasian|1217|12||||||No|66256|||||||A-type. Volcanic-arc and syn-collisional granite. Yb-enriched.|acid intrusive rock|||Y|A-type|17-JAN-23
Pirrilyungka Formation|72985|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cryogenian||||deposition|Cryogenian||||||1238|WA|Yes|64103|64103|Hocking, R. (GSWA)|15-MAR-07|||For use on COOPER map sheet; nearest town is ?Warburton. For Neoproterozoic diamictite, siltstone and mudstone, probably Supersequence 2, known only in GSWA Vines 1 corehole, 779.2 - 2017m (TD).|Dark-grey diamictite with local reddish-brown horizons, sandstone, mudstone and pebble conglomerate. Deposited in marine and possibly continental, glacially influenced settings.|siliciclastic sedimentary rock|||N||17-JAN-23
Piti Palya Metamorphics|76006|Pity Palya Metamorphics|74659|||Yes|Formation, beds|Formal|Variation of reserved name|Briefly described|||||Mesoproterozoic|1293||||Mesoproterozoic|1360|||||||No|66281||||||Musgrave Province|Undivided: weakly to strongly banded gneiss; typically quartzofeldspathic but includes amphibolitic rocks; mostly of sedimentary or volcanosedimentary protolith but possibly includes felsic to mafic intrusive protolith.|metamorphosed acid igneous rock|metasedimentary siliciclastic rock||N||17-JAN-23
Pitjantjatjara Supersuite|39078|Kulgera Supersuite|33040|||Yes|Supergroup|Formal|Resvd name published|Defined|||||Stenian|1121|11|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Ectasian|1219|9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|||NT|Yes|60678|61154|Edgoose, C.|17-SEP-03|Kruse, P.D.|24-OCT-03|For use on MUSGRAVE map sheet.  Age: 1190-1120Ma (Edgoose et al; Major and Conor 1993; Scrimgeour et al 1999; Edgoose et al 2002; Young et al 2002; Close et al 2003a). Two distinct age groups, defining Early and Late Musgravian Orogeny. c.1219-1200 Ma, and c.1190-1155 Ma (Sen, 2009). Musgrave Province, associated with the Musgrave Orogeny. Three facies are mapped separately.|Granite, monzogranite, monzonite, granodiorite. Includes metagranodiorite, metamonzogranite, gneissic porphyritic leucogranite, medium-grained mafic granulite, granitic gneiss, metasyenogranite.|acid intrusive rock|metamorphosed igneous rock||Y|A-type|17-JAN-23
Pitjantjatjara Supersuite 1|81015|Pitjantjatjara Supersuite - early 77758|77758|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1195||inferred||Mesoproterozoic|1219||inferred|||||No|72034||||||Informal, invalid name for older parts of Pitjantjatjara Supersuite. Musgrave Province, Paterson Orogen.|Metagranite and gneiss.|metamorphosed acid igneous rock|||Y||17-JAN-23
Pitjantjatjara Supersuite 2|81018|Pitjantjatjara Supersuite - late 77759|77759|||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1148|6|isotopic||Mesoproterozoic|1188|4|isotopic|||||No|72034||||||Informal, invalid name for younger parts of Pitjantjatjara Supersuite. Musgrave Province, Paterson Orogen.|Metagranite, gneiss.|metamorphosed acid igneous rock|||Y||17-JAN-23
Plantagenet Group|15310|Plantagenet Beds|15309|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Eocene|36.5|||deposition|Eocene|51.5||||||WA|No|71787|71789||||||Siltstone, sandstone, bryozoal carbonates and spongolites.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Plover Bore Komatiite|38800|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||||||eruption|||||||||No|23926|||||||||||N||17-JAN-23
Plover Formation|15330|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Troughton Group|18608|||Bathonian|||biozone|deposition|Hettangian|||biozone||104|672||No|41459||A.J.Mory|02-DEC-86|||Age: ~203-~154Ma. Hosts the Daly River Road surficial Fe deposit and the McLeans surficial type Mn deposit. Potential hydrocarbon reservoir.|Dark brown limonitic coarse to pebbly quartz sandstone, massive white friable quartz sandstone, conglomerate, siltstone and claystone interbeds, rare limestone and coal|siliciclastic sedimentary rock|||N||17-JAN-23
Plumridge Formation|15343|Plumridge Beds|15342|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Middle Miocene|||inferred|deposition|Middle Miocene|||inferred, geological correlation||||WA|No|41751||||||Equivalent to Yarle Sandstone in SA|Fine-grained sandstone, siltstone, claystone with intercalated pebbly sandstone with silcrete clasts.|siliciclastic sedimentary rock|||N||17-JAN-23
Point Irwin basaltic dyke|83647|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Cambrian|||inferred||Calymmian|1454|8|isotopic, U/Pb-Pb/Pb ICP-MS|maximum depositional age||||No|73480||||||Moderately dipping N-NW-striking dyke. Plagioclase 40Ar/39Ar analyses from PI1 yielded a stairstepping spectrum from ca 850 Ma to 1400 Ma. Name used interchangeably with Point Irwin dyke. Hosted in biotite migmatite.|Microporphyritic ophitic basaltic dyke.|basic volcanic rock|||Y||05-FEB-23
Point Maud Member|15377|Point Maud Formation|15376|||Yes|Member, phase|Formal|Variation of published name|Described|Gneudna Formation|7463|||Upper Devonian||||deposition|Middle Devonian|||||||WA|No|40617||||||Replaces Point Maud Formation.|Massive dolomite. Core sample: Light grey to white dolomite with abundant vuggy and intercrystalline porosity and stylolites.|carbonate sedimentary rock|||N||17-JAN-23
Point Salvation Monzogranite|75355|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2662|||intrusion|Neoarchean|2664|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|66117||Pawley, M. (GSWA)|29-JUN-09|||Rason 1:250k map sheet area. Extensive layered monzogranite intrusion in the NE corner of the Yilgarn Craton. Extends along western side of Yamarna greenstone belt. Ages of c.2662 and c.2664 given on 2 different 100K maps (published 2010).|Biotite monzogranite; fine- to coarse-grained; seriate to K-feldspar-porphyritic; abundant leucogranitic layers and schlieren; metamorphosedl.|igneous intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Point Samson Group|73847|||||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Archean|||||Archean||||||||No|24391|||||||||||N||17-JAN-23
Point Spring Sandstone|26849|Point Spring Sandstone""|15382|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Weaber Group|19643|||Bashkirian||||deposition|Serpukhovian||||||240|NT|No|48635|41839|||||See also Lexicon. Unit probably diachronous. Previously mapped as Border Creek Formation. And formerly part of the Weaber Group - revised by author Gorter et al (2005) as the onshore equivalent of Arco and Aquitaine Fms.  Age: ~322-~314Ma. NTGS still included this unit in Weaber Group in 2006, but not by 2013 (although shown in Weaber Group in 2015 Auverne map). See also Border Creek Formation [regarded as part of Point Spring Sst by Mory and Beere(1988) but actually overlies it].|Quartz sandstone, minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Point Torment Sand|24461|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Holocene||||deposition|Holocene||||||3|WA|Yes|36483|36483|Semeniuk, V.|08-DEC-75|WA SNSC||Developed as spits along an eroding coastline cut into the finger-like extensions of Mowanjum Sand. Age: 1190-500yrs. B.P. (for mangrove stumps).|||||N||17-JAN-23
Point Waylen beds|15385|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|41278|||||||||||N||17-JAN-23
Poison Hill Greensand|15386|||||Yes|Formation, beds|Formal|Other new published name|Defined|Coolyena Group|4565|||Campanian||||deposition|Campanian||||||90|WA|No|34413|36293|||||Defined Fairbridge (1953). Type section in Poison Hill, 6.5km NNW of Gingin.|Unconsolidated pale yellow to dark green, fine- to very coarse-grained, richly glauconitic, silty and locally clayey sand.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Poivre Formation|22671|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Middle Miocene||||deposition|Middle Miocene||||||||No|23768||McNamara K.|05-NOV-92|||For use on Barrow Island.  Not yet published by orginal author?|||||N||17-JAN-23
Pokegama Quartzite|15388|||||Yes|Formation, beds|Formal|Other new published name|Mentioned||||||||||||||||||No|41997|||||||||||N||17-JAN-23
Polar Bear Formation|22673|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Redmine Group|22744|||Holocene||||deposition|Pliocene||||||||No|42959||Clarke J.|30-SEP-91|||Cowan 1:100 000 sheet. See also the misspelt Polar Bar Formation.|Includes gypsum-bearing evaporite deposits, aeolian lunettes and dune islands.|regolith|||N||17-JAN-23
Polda Formation|15393|Polda formation|15396|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Kimmeridgian||||deposition|Callovian|||||56|96|SA|Yes|29856|37850|Gatehouse C.G., Harris W.K., Foster C.B.||Gatehouse, C.G.|16-NOV-82||Fluvial sandstone and conglomerate; carbonaceous and lignitic claystone|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Polelle Group|74804|||||Yes|Group, Suite|Formal|Resvd name published|Described|Murchison Supergroup|13501|||Neoarchean|2730||inferred||Neoarchean|2800||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||For use in the complete revision of the Murchison domain lithostratigraphy; published in GSWA Annual Review 2007-2008.|Basalt, komatiitic basalt, felsic volcanic and volcaniclastic rocks, and banded iron-formation; metamorphosed.|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||04-SEP-23
Pollard Formation|23916|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sahul Group|16515|||Carnian|230|||deposition|Anisian|||||||WA|No|41532|42442|A.J.Mory|13-AUG-87|||Defined in Mory (1988) NW Shelf volume for WA, Mory (1991) - GSWA Rep 29 for  NT and WA.  Age: >240->230Ma.|Sandstone with interbedded shale; minor limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Pollock Hills Formation|15411|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Mount Webb Suite|31336|Statherian|1643|13|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Statherian|1677|6|isotopic, U/Pb-Pb/Pb ion probe||1000|||No|29806|45140|||||Dacitic volcanics which originally included the new Kiwirrkurra Formation (per email, I.Tyler, 11/10/07).  See also the misspelt Polloch Hills Formation with age: 1615Ma. Warumpi Province, Arunta Orogen, North Australian Craton.|Metadacite, metarhyodacite, and volcaniclastic metasedimentary rock.|acid volcanic rock|metasedimentary siliciclastic rock||N||17-JAN-23
Ponton Creek psammitic gneiss|80071|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Statherian|1666|12|||Statherian|1689|6||maximum depositional age||||No|69595|||||||Sand and grit-dominated psammitic gneiss.|metasedimentary siliciclastic rock|||N||17-JAN-23
Poocatche Monzogranite|35231|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Split Rock Supersuite|68672|Mesoarchean|2830|||intrusion|Mesoarchean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets.|Muscovite-biotite monzogranite, seriate to porphyritic, massive to weakly foliated, metamorphosed|acid intrusive rock|||Y||17-JAN-23
Poole Sandstone|27680|Poole Range beds|15436|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Artinskian|||inferred, biostratigraphic correlation|deposition|Sakmarian|||inferred, biostratigraphic correlation|||160|WA|No|39796|45153|||||See also Lexicon. Age: ~290->280Ma (in 2001). Previously included in Liveringa Group. [in 1980. CEB 20-JAN-2020.]|Fossiliferous, locally carbonaceous, commonly ripple marked and cross bedded red-yellow/brown fine and thin-bedded to coarse quartzose sandstone; lenses of white claystone and siltstone and thinly bedded matrix-supported conglomerate; minor coal seams.|siliciclastic sedimentary rock|||N||17-JAN-23
Poondano Formation|15445|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Eocene|36.5|||deposition|Eocene|40.5|||||8|WA|No|44998|44998|||||See also Lexicon. Originally described in the Port Hedland area. Overlies Canning Basin.|Channel iron deposits and pisolite - pisolitic and limonitic riverine palaeochannel mineralisation.|non-carbonate chemical or biochemical sedimentary rock|sediment||N||17-JAN-23
Poonta Suite|82275|San Sou Suite|31896|||Yes|Group, Suite|Reserved|Reserved|Reserved|||||Paleoproterozoic|1788||inferred||Paleoproterozoic|1804||inferred|||||No|||Phillips, C. (GSWA)|21-MAY-21|||This name is to replace the San Sou Suite. Includes the San Sou Monzogranite and Eastman Granite.|Medium- to fine-grained biotite monzogranite; scattered fine-grained mafic inclusions. Fine to course grained biotite syenogranite and monzogranite.|acid intrusive rock|||Y||17-JAN-23
Pooranoo Metamorphics|37649|||||Yes|Group, Suite|Formal|Resvd name published|Defined|Gascoyne Complex|7044|||Statherian|1680|13|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1758|18|inferred||||WA|Yes|61262|61262|Sheppard, S.|29-OCT-02|||Located in the northern Gascoyne Complex. Intruded by Dingo Creek Granite and Durlacher Supersuite plutons.  S.Sheppard (GSWA, Oct 2008) advice to upgrade to group status.|Pelitic and psammitic schist, quartz metasandstone, feldspathic metasandstone and metaconglomerate, and phyllite|high grade metamorphic rock|metasedimentary siliciclastic rock||N||05-JUN-23
Porphyry Quartz Monzonite|33667|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2667|4||intrusion|Neoarchean|2667|4||||||No|44203||||||Edjudina 1:250 000 sheet area.|Medium- to coarse-grained quartz monzonite; biotite after hornblende; prominent K-feldspar phenocrysts.|intermediate intrusive rock|||Y|I-type|17-JAN-23
Porpoise Bay Formation|23918|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lutetian|43|||deposition|Lutetian|47|||||350|WA|No|41751|41751|A.E.Cockbain|18-SEP-85||||White chalk, calcarenite, chert.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Port Robinson Basalt|75580|Dixon Pillow Basalt|73860|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Mesoarchean|3020||inferred, overlying unit|eruption|Mesoarchean|3200||inferred, underlying unit|||400||No|67201||Hickman, A. (GSWA)|08-JAN-10|||A 200-400 m thick formation of Archean pillow basalt exposed at Cleaverville, northwest Pilbara. Stratigraphically between the 3.2 Ga Dixon Island Formation (Kiyokawa and Taira, 1998) and the 3.02 Ga Cleaverville Formation. Previously called the "Dixon Pillow Basalt" (Kiyokawa and Taira, 1998), but Kiyokawa now agrees the same name source (Dixon) should not be used for adjacent formations.Tobepublished = 2010, in GSWA Record in prep.: "Preliminary report on the Dixon Island - Cleaverville drilling project, Pilbara Craton, Western Australia", by Kiyokawa et al.|Pillow basalt|basic volcanic rock|||N||17-JAN-23
Port Smith Sand|29880|Port Smith|22684|||Yes|Formation, beds|Formal|Variation of reserved name|Defined|||||Holocene||||deposition|Holocene||||||3|WA|Yes|64449|64449|Semeniuk, V.|30-JAN-95|Hocking, R.|29-JUL-08|Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 3520 +/- 200 yrs BP, 3680 +/- 210 yrs BP, and 4320 +/-220 yrs BP.  PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|Mostly grey, bioturbated to structureless, fine and very fine sand and shelly sand ranging to coarse sand and shelly sand. Sand grains are quartz, or quartz and bioclasts, and locally ooids.||||N||17-JAN-23
Portree Granite|25410|Portree Granitic Complex|73587|||Yes|Formation, beds|Formal|Other new published name|Defined|||Portree Suite|69695|Mesoarchean|2946|6||intrusion|Mesoarchean|2946|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|30766|63441|||||Of Sisters Supersuite. Nomenclature revised in GSWA Record 2006/15 (Van Kranendonk).  Intrudes the c.2970-2940Ma Croydon Group. Age: 2946+/-6Ma. Formerly referred to as the Portree Granitic or Granitoid Suite. Intrudes the Croydon Group.|Massive medium-grained leucocratic alkali granite in south; coarse-grained alkali granite in the north.|acid intrusive rock|||Y||17-JAN-23
Portree Suite|69695|||||Yes|Group, Suite|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2946|||intrusion|Mesoarchean|2946|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion||||No|61253||||||Age: >2.9Ga.  In the Pilbara Craton.  Intrudes Mallina Formation.|Granitic rock; metamorphosed|acid intrusive rock|||Y||05-JUN-23
Potkoorok Member|32213|||||Yes|Member, phase|Formal|Resvd name published|Described|Euro Basalt|27151|||Archean||||deposition|Archean||||||2800||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755|Interlayered pillow basalts and various cherts.|basic volcanic rock|||N||17-JAN-23
Pottoyu Granite Suite|33649|Pottoyu Granite Complex|15509|||Yes|Group, Suite|Formal|Variation of published name|Redefined|||Pitjantjatjara Supersuite|39078|Stenian|1144|12|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Stenian|1192|13|isotopic, U/Pb-Pb/Pb ion probe||||NT|Yes|60683|60683|Edgoose C., Close D., Scrimgeour I.||Beier, Kruse, Young|27-JUL-99|PETERMANN RANGES 1:250 000 sheet area. Includes Mulyati Granite, otherwise undivided. Ages: 1192+/- and 1144+/-12Ma (SHRIMP U-Pb zircon) - suggest a series of intrusions over a prolonged period of time. Parts previously mapped as Olia Gneiss. Name may have been replaced by the shorter Pottoyu Suite.|Variously metamorphosed, foliated to migmatitic granites; includes biotite granite, hornblende granite, leucogranite, rapakivi textured granite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Poulton Formation|15517|Blackstone Formation""|1870|||Yes|Formation, beds|Formal|Other new published name|Defined|Tanndulla Group|24008|||Givetian|||inferred|deposition|Givetian|||inferred|||310|WA|No|32648|45153|||||Also interfingers with Tandalgoo Red Beds. Of Tandulla Group?|Siltstone, minor shale, sandstone; traces of dolomite.|siliciclastic sedimentary rock|||N||17-JAN-23
Powdar Monzogranite|33203|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Archean|2930|||intrusion|Archean|2935|3||||||No|50370||Smithies R.H.|27-OCT-98|||Age: 2935 +/- 3Ma.|Monzogranite, syenogranite|acid intrusive rock|||Y||17-JAN-23
Powder Gabbro|79517|Powder Intrusion|78634|||Yes|Formation, beds|Formal|Variation of published name|Described|||Leviathan Suite|77866|Neoarchean||||intrusion|Neoarchean|2696||inferred|||||No|70153||||||A variation on Powder Intrusion (unit no. 78634). Probably intended to replace Powder Intrusion.|Gabbro; metamorphosed. Leucogabbro; coarse grained with granophyric texture; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Power Hill Formation|73848|||||Yes|Formation, beds|Formal|Other new published name|Described|Point Samson Group|73847|||Archean||||deposition|Archean||||||||No|24391|||||||Felsic volcanics, black-white chert, felsic tuff, ferruginous chert and banded iron formation|acid intrusive rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Power House Cherts|70614|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||deposition|||||||||No|62406||||||Possibly informally named rocks associated with a power complex in the Golden Mile area?|||||N||17-JAN-23
Powereena Dyke|15529|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|30766|||||||||||Y||17-JAN-23
Poynton Formation|22692|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||Paleoproterozoic|1680|29|inferred, intrusive relationship|metamorphism|Paleoproterozoic||||||1000||No|43848||Bagas L., Hickman A.|10-MAR-93|||To be used in the Rudall 1:250 000 sheet area.|Quartzite, commonly micaceous, with intercalated quartz-muscovite schist, psammitic gneiss and biotite-plagioclase-quartz schist|metasedimentary siliciclastic rock|metasedimentary rock||N||17-JAN-23
Prairie Downs Dolerite|80580|Prairie Downs Dyke Suite|80100|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Neoarchean|||inferred||Neoarchean|2745||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Dolerite; mainly north-northeast trending dykes.Part of Fortescue LIP; intrusive equivalent of Fortescue volcanic rocks. Newman, Mount Bruce 250k; Prairie Downs, Warrawanda, Ophthalmia, Rocklea 100k. See also GSWA ENS: Wingate, MTD (partial report), Prairie Downs Dolerite (A-_pd-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Prairie Downs Dyke Suite|80100|||||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Neoarchean|||||Neoarchean|2745|||||||No|70826||||||See also GSWA's ENS system.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Premier Coal Measures|26854|Premier Member|15547|||Yes|Formation, beds|Formal|Variation of published name|Defined|Collie Group|4345|||Roadian||||deposition|Kungurian||||||320||No|42711|42711|||||May include (supersede?) the Collieburn Member? Described as Collie Subbasin, Southern Perth Basin in 2008.|Interbedded poorly sorted feldspathic sandstone, carbonaceous shale, coal; pebble conglomerate.|organic rich sedimentary rock|||N||23-MAR-23
Prendergast Sandstone|78516|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2758|6||deposition|Neoarchean||||||||No|68107||||||Age: rhyolitic breccia 2758 +/- 6 Ma Barley et al 2006 (RefID 68107).|Comprises arkosic sandstone and felsic volcaniclastic rocks.|medium-coarse grained siliciclastic rock|acid volcanic rock||N||17-JAN-23
Prenti Dolerite|36150|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Warakurna Supersuite|73257|Stenian|1050||isotopic, K/Ar|intrusion|Stenian|1070|||||||No|64655||Hocking R. GSWA  R.Hocking@dme.wa.gov.au|11-JUL-01|||Age: c. 1070 Ma. Intrudes Earaheedy Group.|Dolerite sill, dyke, and plug; fine- to medium-grained dolerite.|basic intrusive rock|||Y||04-OCT-23
Preston Beach Coquina|73569|Preston Beach|22695|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||7||No|63454|63454|||||Defined by Semeniuk (1995).  White, cream, yellowish and tan shell beds, shell grit, shelly sand, and coarse to medium sand.|White, cream, yellowish and tan shell beds, shell grit, shelly sand, and coarse to medium sand.||||N||17-JAN-23
Preston Dolerite|80588|Preston Dolerite Suite|80101|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Orosirian|1814|4|isotopic||Orosirian|1817|2|isotopic|||||No|||Wingate, M.T.D., Hickman, A.H. (GSWA)|03-JUL-18|||After Preston Point in the Pilbara. Dampier and Barrow Island 250k. Small suite of dolerite dykes, north-northeast trending. The dyke intrudes a thrust fault, which is one of a set of thrusts that form an imbricate zone in the Tumbiana Formation of the Fortescue Group in the Cape Preston area. Regional structural evidence (Hickman and Strong, 1998) indicates that these thrusts may belong to the 1815-1770 Ma Capricorn Orogeny (Sheppard et al., 2010, GSWA Report 110). Two dates: 1817 ± 2 and 1814 ± 4 Ma.Wingate, MTD and Hickman, AH 2009, 178156: felsic differentiate of gabbro dyke, Mount Rough; Geochronology Record 802: Geological Survey of Western Australia, 4p. http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178156.1.pdf. Wingate, MTD and Hickman, AH 2009, 178155: gabbro dyke, Mount Rough; Geochronology Record 801: Geological Survey of Western Australia, 4p. http://geodownloads.dmp.wa.gov.au/downloads/Geochron/pdfs/178155.1.pdf. See also GSWA ENS: Wingate, MTD and Hickman, AH (partial report), Preston Dolerite (P_-_pr-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 07 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dykes; north-northeast trending|basic intrusive rock|||Y||17-JAN-23
Pretlove Sandstone|15551|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Carlton Group|3629|||Late Cambrian||||deposition|Late Cambrian||||||||No|45038||||||See also Lexicon.|Quartz sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Prices Creek Group|15573|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Middle Ordovician|||||Lower Ordovician|||||||WA|No|44404|44998|||||See also Lexicon.|Siltstone, shale, limestone, and dolomitic sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||18-SEP-23
Prince Regent Dolerite|80576|Prince Regent Dyke Suite|79599|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Carboniferous|298.9||inferred||Devonian|419.2||inferred|||||No|71811||Wingate, M., Phillips, C. (GSWA)|03-JUL-18|||Prince Regent River and Nature Reserve. Dolerite; typically northwesterly trending dykes. This unit is interpreted from distinctive northwesterly linear trends on geophysical imagery and is not observed in outcrop. It is considered likely that dolerite is a main constituent of the unit. It was originally published as the Prince Regent Dyke Suite (79599), now formalised as Prince Regent Dolerite to avoid form term. To be published in Kimberley GIS 2018 package etc. See also GSWA ENS: Wingate, MTD and Phillips, C (partial report), Prince Regent Dolerite (DC-_pe-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Probably dolerite.|intermediate intrusive rock|||Y||17-JAN-23
Prince of Wales Granodiorite|15592|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|41914|||||||Coarse-grained, strongly foliated, hornblende-biotite granodiorite with evidence of a complex recrystallization history.|acid intrusive rock|||Y||17-JAN-23
Princess Creek Group|69036|||||Yes|Group, Suite|Formal|Other new published name|Briefly described|||||Ordovician|||||Ordovician||||||||No|44231|||||||Dolomite, limestone, sandstone and shale.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Princess Ranges Member|36893|Princess Ranges Quartzite|26111|||Yes|Member, phase|Formal|Variation of published name|Described|Chiall Formation|33196|||Paleoproterozoic||||deposition|Paleoproterozoic|1876|19|inferred, isotopic correlation|||500||No|23589||||||RefID 50223 gives youngest detrital zircon age: 1876 +/-10Ma.|Fine- to medium-grained sandstone, generally texturally mature, locally pebbly and glauconitic; subordinate siltstone, shale and mudstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Princess Royal Member|38728|Princess Royal Spongolite|15598|||Yes|Member, phase|Formal|Variation of published name|Described|Pallinup Formation|14796|||Late Eocene||||deposition|Late Eocene||||||||No|24397||||||Changed from formation status to member of Pallinup Formation by Clarke et al. (2003).|Spongolite, sandstone, siltstone, claystone, locally silicified.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Prion Formation|15604|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Woodbine Group|20481|||Eocene|38|||deposition|Eocene|41|||||||No|42053||||||Age: ~41-~33Ma.|Limestone.|carbonate sedimentary rock|||N||17-JAN-23
Prospect Shale|15624|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29845||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Prudhoe Formation|15632|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||||||deposition|||||||||No|42053||||||See also Prudhoe Member.|||||N||17-JAN-23
Pteropus Breccia|15637|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|41158|||||||||||N||17-JAN-23
Puffin Formation|15646|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bathurst Island Group|1249|||Danian|66||biozone|deposition|Campanian|74||biozone|||570|WA|No|41532|41532|||||Age: Late Cretaceous to early Paleocene. Restricted to eastern Ashmore Platform and Vulcan Sub-basin. See also Puffin Sandstone.|Lenticular sandstones interbedded with shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Pungkuli Formation|31874|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Throssell Range Group|70719|||Cryogenian||||deposition|Cryogenian||||||900||No|43849||||||Paterson Orogen.|Interbedded, laminated, slightly micaceous, grey to dark-brown-black shale; locally carbonaceous shale and siltstone; thin units of sulfidic shale and sandstone; minor carbonate rocks and chert.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Punkerri Sandstone|15666|Punkerri sandstone|15669|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Ungoolya Group|23088|||Ediacaran||||deposition|Ediacaran||||||1200||No|34535|23282|||||Originally Punkerri Sandstone by Thomson (1969); then defined as Punkerri Beds by Major (1974), now redefined as Punkerri Sandstone. See also Punkerri Formation (used in WA).|Sandstone, reddish brown, flaggy, micaceous to feldspathic, and lesser siltstone.|siliciclastic sedimentary rock|||N||04-APR-23
Puntapunta Formation|15671|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Lamil Group|34421|||Cryogenian||||deposition|Cryogenian|850||inferred, geological correlation|maximum depositional age||1500||No|36632||||||Correct spelling of Pantapanta Formation.|Ferruginized, laminated to thinly bedded sequence of dark grey dolomitic sandstone, grey dolomitic siltstone, and rare limestone, very fine grained pale brown dolomitic sandstone, chert, and shale.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Puntitjata Rhyolite|33811|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tjauwata Group|36772|||Stenian|1075|2|isotopic, Pb/Pb|eruption|Stenian|1075|2|isotopic, Pb/Pb||||NT|Yes|50321|65256|Edgoose C., Close D.|23-NOV-99|Kruse, P.D.|21-JAN-02|Bloods Range 1:250 000 map sheet area.  Age: 1075+/-2Ma (Pb-Pb zircon)|Finely porphyritic rhyolite, tuff, minor volcaniclastics.|acid volcanic rock|||N|A-type|17-JAN-23
Punuwarra suite|77236|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|||||Mesoproterozoic|1195|4|isotopic, Sm/Nd|||||No|66256||||||A-type. Early Musgrave Orogeny.||acid intrusive rock|||Y|A-type|17-JAN-23
Purralili Sandstone|23927|Buchanan Sandstone|23430|||Yes|Formation, beds|Formal|Other new published name|Redefined|Mahony Group|23749|||Frasnian||||deposition|Frasnian|||||||WA|No|40993|41864|Trendall, A.F.|04-OCT-85|||Replacement name for Buchanan Sandstone (res.in error!)|Medium- to very thick-bedded, medium-grained quartz arenite.|siliciclastic sedimentary rock|||N||17-JAN-23
Pussy Cat Group|15689|||||Yes|Group, Suite|Formal|Other new published name|Described|Bentley Supergroup|1491|||Stenian|1047||||Stenian|1071|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|30385||||||Bentley Basin (GSWA 2011).|Rhyolite, dacite, ignimbrite, basalt, volcaniclastic and siliciclastic sedimentary rock, sandstone, diamictite and conglomerate.|igneous volcanic rock|siliciclastic sedimentary rock||N||06-OCT-23
Pyradie Formation|15703|Pyradie Pyroclastic Member|15704|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Fortescue Group|6834|||Neoarchean|2715||inferred, geological correlation|eruption|Neoarchean|2725||inferred, lithostratigraphic correlation||800|1000||No|42471||||||Formerly the Pyradie Pyroclastic Member of de la Hunty (1965). Ages from Trendall et al (2004), RefID 60706.|Pyroxene spinifex-textured basaltic flows and pillow lava with mafic volcaniclastic rock; minor chert and local komatiite; metamorphosed|basic volcanic rock|||N||05-JUN-23
Pyramid Hill Formation|32217|||||Yes|Formation, beds|Formal|Resvd name published|Described|Soanesville Group|70124|||Mesoarchean||||deposition|Paleoarchean|||||300|1000||No|61266||Van Kranendonk M.|27-JAN-98|||North Shaw 1:100 000 sheet area 2755. In the Pilbara Craton. Reassigned from the Gorge Creek Group as topmost unit of Soanesville Group (GSWA 03/06).|Banded iron-formation, minor chert and shale; red-weathered, ferruginised, black shale; silicified shale, grey, white, and black layered chert; all metamorphosed.|metasedimentary non-carbonate chemical or biochemical rock|metasedimentary siliciclastic rock||N||17-JAN-23
Pyramid Well Granite|73868|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||intrusion|Archean|3310|3||||||No|24590||||||||acid intrusive rock|||Y||17-JAN-23
QED Rudite|35670|||||Yes|Formation, beds|Formal|Other new published name|Briefly described||||||||||||||||||No|23142|||||||||||N||17-JAN-23
Quadrio Formation|33755|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Mesoproterozoic||||deposition|Mesoproterozoic|1600||inferred|||1000||No|50188|50188|Hocking R.|28-OCT-99|||Defined and published in HOCKING, R. M., JONES, J. A., PIRAJNO, F., and GREY, K., 2000, Revised lithostratigraphy for Proterozoic rocks in the Earheedy Basin and nearby areas: Western Australia Geological Survey, Record 2000/16.  In the Oldham Inlier (Bangemall Basin)|Shale, siltstone, minor sandstone and laminated chert.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Quadrio Formation and Cornelia Sandstone|82847|||||Yes|Subgroup|Informal|Variation of published name|Briefly described|||||Mesoproterozoic|1070||inferred||Paleoproterozoic|1845|62|isotopic|maximum depositional age||||No|||||||Informal combination unit used in IBG_GSWA_2020. Paterson Orogen.|Shale, siltstone, chert, and minor sandstone; quartz sandstone to quartzite, and minor siltstone.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Quail Formation|15714|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Visean|||||||WA|No|35282|40617||||||Marine siliciclastics, limestone, sandstone, and claystone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Quailing Laterite|15715|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|42280|||||||||||N||17-JAN-23
Quairading Sandstone|34481|Quairading Sandstone Formation|30328|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Salt River Group|30327|||Miocene||||deposition|Rupelian||||||24.2||No|22769|||||||Does not outcrop. Consists of grey, brown white and pink layers of sandstone, varying in size from fine to coarse sand, well rounded to subrounded, well-cemented in a clay matrix.|siliciclastic sedimentary rock|||N||17-JAN-23
Quartpot Pelite|33438|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Camel Hills Metamorphics|33276|||Orosirian|1985||inferred, intrusive relationship|deposition|Orosirian|2031|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|22904||Tyler I.|09-NOV-98|||Gascoyne region. Age: c. 1985 Ma, from intrusion by c. 1970 Ma sheets and veins of coarse biotite trondhjemite. Max age is for deposition of sedimentary precursor (from detrital zircons).|Pelitic and psammitic schist or gneiss interlayered with minor quartzite, calc-silicate gneiss and amphibolite.|high grade metamorphic rock|||N||17-JAN-23
Quindalup Dunes|73388|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Holocene|||||Holocene||||||||No|40400||||||Geomorphic unit of McArthur and Bettany (1960). Includes the Becher Suite of wetland basins. Distribution of the Safety Bay Sand coincides with that of the Quindalup Dune System (GSWA Bull 124, p. 212) [RefID 36293]. Use Safety Bay Sand for lithostratigraphic purposes.|Coastal dunes, beach ridge plains, tombolos and cuspate forelands, underlain by quartzo-calcareous sand.|sediment|||N||17-JAN-23
Quinnanie Shale|15767|Quinnanie shale|15768|||Yes|Formation, beds|Formal|Other new published name|Defined|Byro Group|3230|||Artinskian||||deposition|Artinskian|||||15|119|WA|No|44537|45016|||||See also Lexicon. SG50-1. Type section: Minilya River, north of Wandagee Hill, 23d44m10sS, 114d25m20sE.|Carbonaceous shale, siltstone and fine quartz wacke, fossiliferous.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Quinns Basalt Member|81674|Quinns Basalt|23930|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Singleton Formation|80614|||Archean|||||Mesoarchean||||||||No|72389||||||On GABANINTHA 100k.|Mafic volcanic rock; massive to weakly foliated; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Quoin Formation|77447|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Kulshill Group|9896|||Sakmarian||||deposition|Asselian||||||||No|67354|||||||Basal blocky sandstone, fining upwards with thinner sandstone beds and increasing siltstones and shales; distinct and characteristic high gamma ray diamictite horizon.|siliciclastic sedimentary rock|||N||17-JAN-23
Race Course Plains Coquina|22722|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||2|WA|Yes|64449|64449|Semeniuk, V.|24-FEB-95|Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 1285 +/- 150 yrs BP, 2290 +/-180 yrs BP, 1510 +/- 210 yrs BP, 2350 +/- 225 yrs BP, 3625 +/- 260 yrs BP.|Generally light-coloured, shell gravel, shelly sand, and some sand that is variable in structure from bedded, to laminated, to cross-laminated, to locally bioturbated, to structureless.||||N||17-JAN-23
Racecourse Tonalite|74819|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Cullculli Suite|74815|Neoarchean|2760|8||intrusion|Neoarchean|2760|8||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Annean Supersuite.|Tonalite; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Radigans Yard Granodiorite|33977|Radigans Yard|29796|||Yes|Formation, beds|Informal|Resvd name published|Mentioned|||Kevins Dam Suite|31898|||||intrusion|||||||||No|22547||||||Bow 1: 100 000 sheet area. Is this name still current? Not used in GSWA Kimberley 2013 update that covers this area..||acid intrusive rock|||Y||17-JAN-23
Radio Hill Intrusion|31687|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Radley Suite|68740|Mesoarchean||||intrusion|Mesoarchean|2929|13||||||No|43822||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Part of the Sisters Supersuite.|Layered mafic intrusions. Gabbro, pyroxenite, and minor peridotite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Radley Suite|68740|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Sisters Supersuite|68741|Archean|2925|||intrusion|Archean|2930|||||||No|61253||Van Kranendonk, M.|13-APR-05|||For the DAMPIER map sheet; near Dampier.  Named for Radley Find Mine. Contains 7 named intrusions including Yannery Granite.  Age: 2925 Ma. In the western/central Pilbara Craton.|Ultramafic layered intrusions and granite.|ultramafic intrusive rock|acid intrusive rock||Y||17-JAN-23
Raeside Granite|78756|Raeside Granitoid Complex|31104|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2753|6||intrusion|Neoarchean|2760|4||||||No|70153||Patison, N. (GSWA)|26-FEB-14|||This name reserved to replace existing Raeside Granitoid Complex. Map Sheet SH51-5, 3139, MELITA.  Nearest Town = Leonora. Brief description = Granite; monzogranite to tonalite; locally gneissic. To be published: GSWA Explanatory Notes Database.|Monzogranite to tonalite; locally gneissic.|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Ragged Range Conglomerate|28948|Ragged Range Conglomerate Member|15799|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian||||||300|WA|No|45038|41864|||||See also Lexicon.|Pebble to boulder polymict conglomerate, pebbly sandstone, fine to very coarse grained sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Raggedy Member|15802|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562|||||||||||N||17-JAN-23
Railway Dam Metagranodiorite|78530|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||||||intrusion|||||||||No|70153||Hall, C. (GSWA)|05-NOV-13|||Yilmia 1:100k map sheet area.  A foliated biotite-quartz-microcline-sodic oligoclase granodiorite. To be published = East Yilgarn 2013-2013 Update, Geological Survey of Western Australia digital product.|Foliated biotite-bearing metagranodiorite.|acid intrusive rock|||Y||17-JAN-23
Railway Supersuite|68669|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Mesoarchean|3093||||Mesoarchean|3149|15|isotopic, U/Pb|||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||For the DAMPIER mapsheet; nearest town is Dampier. In the Sholl Terrane, West Pilbara Superterrane/Pilbara Craton. Contains some of the oldest components of Cherratta Granitic Complex.|Metatonalite, metagranodiorite, and metamonzogranite; gneissic and with greenstone xenoliths; local ultramafic--mafic intrusive rocks.|metamorphosed acid igneous rock|||Y||17-JAN-23
Rainbow Suite|39886|||||Yes|Group, Suite|Formal|Variation of published name|Mentioned|||||Archean|||||Archean||||||||No|24596|||||||||||Y||17-JAN-23
Rainy Rocks Monzogranite|34926|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2678|14||intrusion|Archean|2678|14||||||No|22902||||||||acid intrusive rock|||Y||17-JAN-23
Randalls Dolerite Member|80608|Randalls Dyke|15827|||Yes|Member, phase|Reserved|Variation of published name|Reserved|Widgiemooltha Dolerite|80598|||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Part of the Widgiemooltha Large Igneous Province; intrudes Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS: Wingate, MTD (partial report), Randalls Dolerite Member (P_-_wv-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro; includes cumulate and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Ranford Formation|15830|||||Yes|Formation, beds|Formal|Other new published name|Defined|Duerdin Group|5760|||Ediacaran||||deposition|Cryogenian|672|70|isotopic, Rb/Sr||200|500|WA|No|44317|45140|||||RUBY PLAINS 1:100 000 sheet. Formerly of Ord Group. Contains zebra rock (kaolinitic siltstone), a striking red and white banded rock - now submerged in the Ord River reservoir. Wolfe Basin.|Thinly bedded micaceous siltstone, ferruginous siltstone, claystone, quartz and lithic sandstone, dolomitic quartz sandstone, dolostone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Rapide Granite|72411|||||Yes|Formation, beds|Formal|Other new published name|Described|||Carrington Suite|41811|Statherian|1590||isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Statherian|1760||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|62633||||||Note: WA showed this granite as part of the Carrington Suite in 2006, 2016, but NTGS shows it as time equivalent, but not included in the Suite. Age: younger than 1805 Ma Stafford Event.|Garnet-bearing biotite granite, mostly porphyritic with tabular feldspars sometimes defining a weak foliation|acid intrusive rock|||Y||25-JUL-23
Rason gneiss|78517|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Neoarchean|||||Neoarchean|2706|22||||||No|68107|||||||Granite gneiss.|metamorphosed acid igneous rock|||Y||17-JAN-23
Ravelstone Formation|22731|Thaduna Greywacke|27910|||Yes|Formation, beds|Formal|Resvd name published|Defined|Bryah Group|29869|||Orosirian|1900||isotopic, Pb/Pb isochron age|deposition|Orosirian|2014|22|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||1000||No|23748|65419|Pirajno F.|31-OCT-94|||SG50-8, Peak Hill. Glengarry Basin. Detrital zircons give maximum depositional age of 2014+/-22 Ma (Nelson, 1997). Pb/Pb isochron age 1900 Ma from galena veins. Outcrops on western Peak Hill 1:250 000 sheet previously considered part of the Thaduna Greywacke are now mostly assigned to the Ravelstone Formation (Occhipinti et al. 1997), due to recongition of distinct lithological differences.|Quartz sandstone and greywacke, metamorphosed; interbedded siltstone and graded beds; chloritic fragments common in places; turbiditic|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Ravensthorpe Suite|78594|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Mesoarchean|||inferred||Mesoarchean|2966|12|inferred|||||No|65487||||||Previously called Ravensthorpe Terrane. Includes tonalite dated at 2966+/-12 Ma U/Pb SHRIMP.|Calc-alkaline volcanics and co-magmatic intrusions.|igneous volcanic rock|acid intrusive rock||Y||17-JAN-23
Rawlinna Member|80304|Rawlinna member|80306|||Yes|Member, phase|Informal|Variation of published name|Described|Nullarbor Limestone|25355|||Miocene|||inferred, biostratigraphic correlation||Miocene|||inferred, biostratigraphic correlation|||||No|70771|||||||Highly fossiliferous limestone ranging from lime mudstone textures to rudstone textures.|carbonate sedimentary rock|||N||17-JAN-23
Razorback Chert|74139|||||Yes|Formation, beds|Formal|Other new published name|Described|Warrawoona Group|19508|||Archean||||deposition|Archean||||||||No|60636||||||Newly named after the Box Soak Razorback. Max. thick: ~30. To be replaced by Razorback Chert Member.  This chert unit is just a local member within the Mount Ada Basalt. Its maximum thickness is 30 m, and its lateral extent is intermittent over about 15 km (tracing it is complicated by faulting).|Consists of (grey-)black and white banded cherts, occasionally grading into grey-green massive chert.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Razorback Chert Member|75917|Razorback Chert|74139|||Yes|Member, phase|Reserved|Reserved|Reserved|Mount Ada Basalt|26045|||||||deposition|||||||||No|||Hickman, A.H. (GSWA)|14-APR-11|||To replace Razorback Chert. This chert unit is just a local member within the Mount Ada Basalt. Its maximum thickness is 30 m, and its lateral extent is intermittent over about 15 km (tracing it is complicated by faulting).|||||N||17-JAN-23
Rea Dacite|68498|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3014|||eruption|Archean|3017|||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Also, to be used on ROEBOURNE map sheet; nearest town Roebourne. Ages: 3017 and 3014Ma. Intrudes Ruth Well Formation, Karratha Granodiorite and the Andover Intrusion.|Rhyolite and dacite; quartz--feldspar porphyritic; chiefly intrusive; metamorphosed|acid volcanic rock|||Y||05-JUN-23
Recherche Supersuite|78595|Recherche Granite|30534|||Yes|Supergroup|Formal|Variation of published name|Described|||||Ectasian|1283|7|isotopic||Ectasian|1330|14|isotopic|||||No|65487||||||Age ~1330-1280 Ma. Intrudes both Nornalup and Biranup Zones.|Biotite-hornblende monzogranite gneiss, garnet-bearing granodiorite gneiss, and rare syn-plutonic dykes.|metamorphosed acid igneous rock|||Y||17-JAN-23
Red Bull Member|15929|||||Yes|Member, phase|Formal|Resvd name published|Defined|Pillara Formation|15204|||Devonian||||deposition|Devonian||||||270|WA|Yes|24000||Read J.F.|15-JAN-75|WA SNSC|28-DEC-74||||||N||17-JAN-23
Red Hill Granite|75278|Red Hill Granitoid Complex|26867|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2660|19||intrusion|Neoarchean|2662|6||||||No|65264||||||Syenogranite, porphyritic monzogranite, and granodiorite. Does this replace Red Hill Granitoid Complex?|Tonalite-trondhjemite; equigranular, biotite-bearing. Syenogranite, porphyritic monzogranite, and granodiorite.|acid intrusive rock|||Y||17-JAN-23
Red Hill Volcanics|37709|Mons Cupri Volcanics|26038|||Yes|Formation, beds|Formal|Resvd name published|Described|Whim Creek Group|26211|||Mesoarchean|2991|12|inferred, intrusive relationship|eruption|Mesoarchean|3009|4|isotopic, U/Pb-Pb/Pb ion probe|||300||No|24191||Smithies, H.|18-NOV-02|||Previously published as Red Hill volcanics.  Published as Red Hill Volcanics (02/32336).  Together with its member Mons Cupri Dacite, supersedes Mons Cupri Volcanics.  Age of Mons Cupri Dacite Member: 2991+/-12Ma. Whim Creek Basin.|Felsic volcaniclastic rocks, intrusive porphyritic dacite+dacitic to rhyolitic lava; includes debris-flow, turbidite and fluvial facies; metamorphosed.|acid volcanic rock|acid intrusive rock||N||17-JAN-23
Red Lake Ophiolites|15947|Red Lake ophiolites|15949|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described||||||||||||||||||No|34324|||||||||||N||17-JAN-23
Red Rock Formation|31894|Red Rock Beds|15961|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Statherian||||deposition|Orosirian|1800||||||WA|No|65413||||||McIntosh 1:100k. c. 1800 Ma|Fine- to coarse-grained lithic quartz sandstone, feldspathic quartz sandstone, pebbly sandstone, conglomerate, siltstone, mudstone, basalt and basaltic breccia; carbonate rock|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Red Rock Formation - basalt|74492|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Red Rock Formation|31894|||Statherian||||eruption|Orosirian||||||||No||||||||Massive to amygdaloidal basalt flows and basaltic breccia, dolerite, minor lithic sandstone, siltstone, and mudstone|basic volcanic rock|igneous volcanic rock||N||17-JAN-23
Red Rock Granite|36777|Red Rock adamellite|15965|||Yes|Formation, beds|Informal|Resvd name published|Mentioned|Gascoyne Complex|7044|||||||intrusion|||||||||No|24183||Sheppard S.|25-JAN-02|||Maroonah 1:100 000, Edmund 1:250 000 sheet area., northern Gascoyne region. Probably Palaeoproterozoic.||acid intrusive rock|||Y||17-JAN-23
Redbank Yard Formation|15980|||||Yes|Formation, beds|Formal|Other new published name|Defined|Duerdin Group|5760|||Cryogenian||||deposition|Cryogenian|||||330|1000|WA|Yes|29813|45140|Blake D.H.|15-MAR-73|||Ruby Plains 1:100 000 sheet area.|Polymictic conglomerate, cross-bedded medium to coarse and commonly pebbly sublithic sandstone, and minor dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Redcliff Pound Group|15983|||||Yes|Group, Suite|Formal|Resvd name published|Redefined|||||Cambrian|510||inferred, overlying unit|deposition|Ediacaran||||deposition|1300|1500|WA|Yes|29809|45140|Blake D.H.|01-JAN-75|WA SNSC|01-JAN-78|Age very poorly constrained. Top may be as young as Cambrian. See also misspellings: Redcliffe Pound Group, Red Cliff Pound Group. Redefined in 2017. For recent update see: Haines, P.W., Allen, H.J. 2016. The Murraba Basin: another piece of the Centralian Superbasin jigsaw puzzle falls into place IN GSWA 2016 extended abstracts: promoting the prospectivity of Western Australia: Geological Survey of Western Australia, Record 2016/2, p. 31-35.|Abundantly cross bedded and rippled medium grained quartz sandstone, minor sublithic sandstone, shale, siltstone, conglomerate, arkose, breccia; some convolute lamination and disturbed cross beds.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Redeemer Basalt|77942|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean|2686.8|3|inferred, geological correlation|eruption|Neoarchean|2720||inferred|||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Redeemer mineral deposit? Map Sheet: SH51-1,  Munjeroo 2941. Basalt; fine-grained with local pyroxene-spinifex texture; includes medium-grained layers and lenses; minor interflow sediments; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Basalt; locally pillowed; metamorphosed,|metamorphosed basic igneous rock|||N||17-JAN-23
Redgate Coal Measures|34564|Redgate|22740|||Yes|Formation, beds|Formal|Resvd name published|Defined|Sue Group|34554|||Roadian||||deposition|Artinskian||||||165||No|22820|22820|||||Vasse River Coalfields.  Contains the Anniebrook Seam which is high quality in the Rosa Brook area.|Predominantly sandstone with intercalations of siltstone, shale and thin coal seams.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Redlings dyke|83850|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Apparently a long known feature ~40km west of Leonora. More recently identified to be intersected by multiple suspected carbonatite dykes, however these not yet drilled. See: https://www.marqueeresources.com.au/projects/redlings-ree/ .|Includes multiple carbonatite dykes.|exotic composition igneous rock|||Y||12-SEP-23
Redmine Group|22744|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Holocene|||||Eocene||||||||No|42959||Clarke J.|24-AUG-89||||||||N||17-JAN-23
Reedy Trondhjemite|74820|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Neoarchean|2785||||Neoarchean|2785|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Annean Supersuite.|Trondhjemite; metamorphosed.||||Y||17-JAN-23
Reef Complex|15999|||||Yes|Group, Suite|Informal|Unnamed published|Briefly described|||||Upper Devonian|||||Middle Devonian||||||1159||No|30895||||||Possible equivalents of Pillara Limestone, Gogo Formation and Nullara Limestone.|||||N||17-JAN-23
Reeves Formation|32171|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Asselian||||deposition|Serpukhovian|||biozone|deposition|71.5|1875|WA|No|64971|64971|Apak S.N., Backhouse J.|19-FEB-98|||Redefined the succession formerly referred to as the informal Lower Grant Group. Formerly the Betty Formation of the Grant Group. Shown as underlying redefined Grant Group of Apak and Backhouse (1998), by (REFID:64971), but included in the Grant Group by Mory et al. in 2008 on genetic grounds (RefID 64630). Said to be unconformably overlain by Grant Group in 2017, 2018 papers. Said to be underlain (unconformably) by Mallowa Salt equivalent in Juno 1. (Khider, in prep. 2020)|Medium-grained sandstone, with minor shale and siltstone; diamictite.|siliciclastic sedimentary rock|||N||17-JAN-23
Regal Formation|16001|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Archean|3018|2|inferred, intrusive relationship|deposition|Paleoarchean|3270||isotopic, U/Pb-Pb/Pb ion probe||2000|3500||No|44536|24541|||||Forms the Regal Terrane of the West Pilbara Superterrane (per statement by M.Van Kranendonk/GSWA, Mar06).|Massive and pillow basalt with local basal peridotitic komatiite; minor chert, BIF, and shale. Includes strongly foliated amphibolite-chlorite schist. Metamorphosed to amphibolite or upper greenschist facies..|basic volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Rest Point|73555|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|02-AUG-07|||Probably to used as Rest Point Mud.|||||N||17-JAN-23
Revels Corner Sandstone Member|28962|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Irregully Formation|8786|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44481||||||Obsolete name?||siliciclastic sedimentary rock|||N||17-JAN-23
Revenge Formation|22753|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Late Miocene|10.5|||deposition|Chattian|29|||||25||No|42959||Clarke J.|28-JUN-89||||Oxidised non-marine, fine-grained clastic deposits.|regolith|||N||17-JAN-23
Revolver Creek Formation|16050|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Ectasian||||deposition|Orosirian|1800|||||1200||No|44363||||||Age: c. 1800 Ma. Age updated by I.Sweet.|Fine- to coarse-grained quartz sandstone; lithic and feldspathic sandstone; carbonaceous siltstone and mudstone; conglomerate; dolerite, basalt and basaltic breccia.|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Rhodda beds|34206|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described||||||||||||||||||No|22649||||||text refers to Brewer & others 1987.|||||N||17-JAN-23
Rice Hill lamproite|16072|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Richenda Microgranodiorite|16074|||||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1858|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|30525||||||Used interchangeably with Richenda Granite. See also Richenda Microgranite.|Foliated medium to fine grained granodiorite and tonalite.|acid intrusive rock|||Y||17-JAN-23
Ridge Hill Sandstone|16091|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kwinana Group|25141|||Pleistocene||||deposition|Pleistocene||||||15||No|30939|||||||Ferruginous sandstone with a thin basal conglomerate overlying Precambrian crystalline rocks and capped by laterite.|regolith|||N||17-JAN-23
Ringa Orthogneiss|16103|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|38513|||||||||||N||17-JAN-23
Riverina Gneiss|79350|Riverina Gneiss Complex|72543|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies across Riverina 1:100K map sheet area. Named from Cassidy et al (2002; AMIRA P482/MERIWA M281) and proximity to Riverina township.It forms part of the Yilgarn Craton Granites. To be published = GSWA digital release 2016.|Granitic gneiss; foliated and lineated.|metamorphosed acid igneous rock|||Y||20-AUG-23
Roadside Bore granite|16156|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||Archean||||intrusion|Archean||||||||No|39162||||||||acid intrusive rock|||Y||17-JAN-23
Robe Pisolite|16166|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Miocene||||deposition|Lutetian|||||3|50||No|44729|44503|||||Also known as Channel Iron Deposits - includes transported ferruginous regolith of fossil wood fragments. Name intended to be replaced by Robe Formation in 2003, but this change not accepted by GSWA.  See also Robe Formation. See comments in RefID 69538 (2014).|Pisolitic, oolitic and massive limonite, minor terrigenous siliciclastic material, goethite and hematite deposits; developed along palaeodrainage lines; dissected by present day drainage.|non-carbonate chemical or biochemical sedimentary rock|regolith||N||17-JAN-23
Robert Formation|25446|Robert beds|16171|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|41751|||||||Quartz arenite & feldspathic sandstone with minor chert.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Robinson Range Formation|16192|Robinson Range Beds|25447|||Yes|Formation, beds|Formal|Other new published name|Defined|Padbury Group|27093|||Statherian||||deposition|Orosirian|||||||WA|No|29663|29663||||||Granular iron formation, banded iron formation, ferruginous and locally sericitic shale. Chert layers in places.|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Rockingham Sand|16207|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Pliocene||||deposition|Pliocene||||||110|WA|No|32575|32575|||||Stated to be of the Kwinana Group (Abeysinghe 2003) but this is probably incorrect (per email R.Hocking 12 Feb 2008). Reassigned in 1995 from Quaternary to Pliocene, from above to below Ascot and Yoganup Formations. Forms a minor semi-unconfined aquifer.|Brown to pale-grey, somewhat silty, slightly feldspathic, medium- to coarse-grained subangular sand.|regolith|||N||17-JAN-23
Rocklea Inlier - metagranitic unit 83801|83801|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3221|6|isotopic||Paleoarchean|3225|2|isotopic|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Rocklea Inlier metagranitic unit', A-mgn-PRK. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Foliated, gneissic, or migmatitic metagranitic rock|foliated metamorphic rock|high grade metamorphic rock||Y||30-JAN-23
Rocklea Inlier greenstones - sedimntary rocks 83800|83800|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3225||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Rocklea Inlier greenstones', A-s-PRK.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Sedimentary rock,; includes oligomicitic and polymictic conglomerate, pebbly sandstone, mudstone, siltstone, and chert; metamorphosed|sedimentary rock|metasedimentary rock||N||30-JAN-23
Rocklea Inlier greenstones - volcanic rocks 83799|83799|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3225||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Rocklea Inlier greenstones', A-b-PRK.  Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Basaltic and andesitic flows, and associated volcaniclastic rocks; metamorphosed|igneous volcanic rock|||N||30-JAN-23
Rocky Bore Granite|16227|Rocky Bore granite|16228|||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2615|2||intrusion|Neoarchean|2615|2||||||No|38540||||||Narryer Terrane.|Porphyritic monzogranite with tabular feldspar phenocrysts; medium grained; metamorphosed|acid intrusive rock|||Y||05-JUN-23
Roe Calcarenite|16251|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lower Pleistocene|1.8|||deposition|Piacenzian|2.6|||||7.5|WA|No|34194|31909||||||Bioclastic sandy limestone; richly fossiliferous, notably with mollusc shells.|carbonate sedimentary rock|||N||17-JAN-23
Roebourne Group|25449|||||Yes|Group, Suite|Formal|Variation of published name|Redefined|||||Paleoarchean|3250|||deposition|Paleoarchean|3280|||||||No|44536|24541|||||Forms the Karratha Terrane of the West Pilbara Superterrane (per statement by M.Van Kranendonk/GSWA, Mar06). Removed from Pilbara Supergroup in 2006.|Basalt, komatiite, serpentinised peridotite, chert, amphibole schist, quartz-mica schist, jaspilite; metamorphosed, locally sheared and foliated.|sedimentary rock|basic volcanic rock||N||17-JAN-23
Roebourne Lithotectonic Complex|36126|Roebourne Complex|16254|||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|23455||||||Of  Hickman, 1997. GSWA Ann Review 1996-97 p76-81. See also Roebourne Group.|||||N||17-JAN-23
Rooney and Springo Inliers granitic unit 83802|83802|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2895||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Rooney and Springo Inliers granitic unit', A-g-PRS. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granite to granodiorite; metamorphosed and variably foliated.|metamorphosed acid igneous rock|||Y||30-JAN-23
Rooney and Springo Inliers greenstones 83803|83803|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Rooney and Springo Inliers greenstones', A-s-PRS. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Sedimentary rock, undivided; includes oligomicitic and polymictic conglomerate, pebbly sandstone, mudstone, siltstone, and chert; metamorphosed.|metasedimentary siliciclastic rock|||N||30-JAN-23
Rosabrook Coal Measures|34565|Rosabrook|22778|||Yes|Formation, beds|Formal|Resvd name published|Defined|Sue Group|34554|||Artinskian||||deposition|Sakmarian||||||241||No|22820|22820|||||Vasse River Coalfields, Perth Basin. Correlated lithologically and palynologically with Irwin Coal Measures in the Northern Perth Basin.|Characterised by poorly sorted feldspathic sandstone intercalated with siltstone and carbonaceous shale grading up into coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Rosamel Member|16323|Rosamel member|16324|||Yes|Member, phase|Formal|Other new published name|Fully described|Safety Bay Sand|16508|||Holocene||||deposition|Holocene||||||15|WA|No|40367|40367|||||Reserved misspelt as Rosarnel.|Littoral sand, beach-ridge/dune unit of uncemented sand and shelly sand; includes a shoaling sequence of sediments.||||N||17-JAN-23
Rose Bore Granite|22781|||||Yes|Formation, beds|Formal|Resvd name published|Described|Tickalara Metamorphics|18130|||Orosirian|1850|||magmatic crystallisation|Orosirian|1863|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|43854||Blake D., Hoatson D.|23-MAR-95|||East Kimberley region. Kimberley Province. Part of Tickalara Metamorphics, Lamboo Complex. 1863 +/- 3 Ma.|Foliated biotite-muscovite metasyenogranite and felsic gneiss; locally migmatitic and sillimanite bearing.|metamorphosed acid igneous rock|metamorphosed acid igneous rock||Y||17-JAN-23
Rothsay Suite|79002|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Annean Supersuite|74813|Neoarchean|2742||inferred|magmatic crystallisation|Neoarchean|2756||inferred||||WA|No|70226||Ivanic, T. (GSWA)|13-JAN-15|||Used in Murchison Domain updates in 2015. Named after Rothsay locale, Rothsay 1:100k sheet area. 29deg 17'S 116deg53'E. Type area: Mount Mulgine. Intrudes at base of greenstone sequences, most commonly the base of the Polelle Group.|Metagranodiorite to metatonalite, with pervasive solid-state overprint commonly increasing towards the contact with greenstones.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Rottnest Limestone|26877|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Kwinana Group|25141|||Upper Pleistocene||||deposition|Upper Pleistocene|.1|.02|||||WA|No|33044||||||Of Passmore (1970).  Age: 100 000 +/-20 000 yrs B.P.|Coral reef and shell limestone.|carbonate sedimentary rock|||N||17-JAN-23
Rough Range Formation|16383|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|45153|||||||||||N||17-JAN-23
Round Hummock Dolerite|80589|Round Hummock Dolerite Suite|73506|||Yes|Formation, beds|Reserved|Variation of published name|Briefly described|||Warakurna Supersuite|73257|Mesoproterozoic|1031||inferred||Mesoproterozoic|1085||inferred|||||No|72712||Hickman, A.H. (GSWA)|03-JUL-18|||Named after Round Hummock Hill, Pilbara region. Several medium- to coarse-grained unmetamorphosed dolerite dykes; an unusual totally altered gabbro dyke, coarse-grained, pale grey, good textural preservation. Now (2018) known to be part of 1075 Ma Warakurna Supersuite, although not published yet (Ashley Ramsley, written communication). See also GSWA ENS: Hickman, AH (partial report), Round Hummock Dolerite (P_-WKrh-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 07 August 2018, <www.dmp.wa.gov.au/ens>.|Several medium- to coarse-grained unmetamorphosed dolerite dykes; an unusual totally altered gabbro dyke, coarse-grained, pale grey, good textural preservation.|basic intrusive rock|||Y||17-JAN-23
Roundtop Komatiite|75984|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||eruption|Mesoarchean|2876||inferred, underlying unit|||||No|68520||Romano S. (GSWA)|10-JUN-11|||Extrusive and intrusive komatiities in the Lake Johnston greenstone belt, Norseman region. To be published: 100k mapsheets of Lake Johnston greenstone belt, Geological Survey of Western Australia|Komatiitic basalt with local pyroxene spinifex texture; komatiite with local olivine spinifex texture, minor cumulate and talc-tremolite schist: both metamorphosed.|metamorphosed ultramafic rock|||N||17-JAN-23
Rouse Creek Arenite|28275|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Uaroo Group|24053|||Proterozoic||||deposition|Proterozoic|||||||WA|No|37016|39427|J.Baxter|04-NOV-75||||Quartz arenite, with minor dolomite|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Rowland Suite|80170|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Stenian|1062|8|isotopic, U/Pb-Pb/Pb ion probe||Stenian|1078|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|71211|||||||Crystal-rich, porphyritic or phaneritic, quartz-feldspar rhyolitic intrusions.|acid volcanic rock|||Y||17-JAN-23
Rowles Lagoon Monzogranite|16398|Rowles Lagoon Granite|22792|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42705||||||Reserved as Rowles Lagoon Granite.|Medium- to coarse-grained biotite monzogranite; locally plagioclase-phyric; foliated.|acid intrusive rock|||Y||17-JAN-23
Roy Hill Member|38090|Roy Hill Shale Member|16405|||Yes|Member, phase|Formal|Variation of published name|Described|Jeerinah Formation|8896|||Archean||||deposition|Archean||||||||No|23570||||||Only recognised easily in the Yarraloola 1:250k map sheet area (GSWA Bull 144 p239). Also replaces Roy Hill Shale. Not used by Thorne & Trendall (2001), Bull 144, because the Warrie Shale Member and the Roy Hill Shale Member are difficult to distinguish in northern Pilbara and are not recognised in the south. Name may be obsolete (2001).|Dark-grey to black (weathering to white) shale; spheroidal pyrite concretions common; white or ferruginous chert layers commonly interspersed. Includes a tuffaceous band.|fine grained siliciclastic rock|||N||17-JAN-23
Royal Amphibolite Member|25454|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||Archean|||||Archean||||||||No|30562|||||||||||N||17-JAN-23
Royal Hill Member|35660|||||Yes|Member, phase|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|23126|||||||||||N||17-JAN-23
Royal Sandstone|72594|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean||||deposition|Archean|2658|15||||||No|66880||||||Informal name for Eastern Goldfields Province data (HG 09/2006)||siliciclastic sedimentary rock|||N||17-JAN-23
Roysalt Formation|29420|Roysalt Evaporite Formation|22794|||Yes|Formation, beds|Formal|Resvd name published|Described|Redmine Group|22744|||Holocene||||deposition|Zanclean|5|||||9||No|42959|||||||Gypsum-bearing evaporites.|regolith|||N||17-JAN-23
Rubberoid Granite|74910|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Moorarie Supersuite|33440|Statherian|1786|6|inferred, geological correlation|intrusion|Statherian|1791|4|inferred, geological correlation|||||No|68521||Johnson, S. (GSWA)|20-NOV-08|||Nearest town is Gascoyne Junction. For publication on the PINK HILLS and CANDOLLE 100K map sheets|Pale grey, medium-grained, seriate to porphyritic metamonzogranite; typically with well-developed igneous layering; commonly with mingled pegmatite veins; minor mesocratic metagranodiorite; locally schistose|metamorphosed acid igneous rock|||Y||17-JAN-23
Ruby Plains Group|30278|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Cryogenian|700||||Tonian|850|||||1000|WA|Yes|43303|23621|Blake D.|30-APR-96|Hocking, R.|22-APR-99|East Kimberley, Gordon Downs 1:250 000 sheet area. Age ~850-800 Ma based on stromatolite fauna in Eliot Range Dolomite.|Sandstone, dolomite, stromatolitic dolomite, dolomitic mudstone, mudstone and siltstone. Fluvial to shallow marine shelf deposits.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Rudall Complex|26880|Rudall Metamorphic Complex|16422|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Mesoproterozoic|1490||||Paleoproterozoic|1760|||||||No|43055||||||See also Rudall Metamorphic Complex.  Of the Paterson Orogen. Hosts Kintyre U mineralisation.|Schist, gneiss, amphibolite, quartzite. Metamorphosed up to granulite facies.|high grade metamorphic rock|||U||17-JAN-23
Rudall Complex - amphibolite, metamafic intrusives|74512|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Statherian|||||Statherian||||||||No||||||||Foliated amphibole-plagioclase rock, amphibolite, serpentinite, tremolite-actinolite schist, banded quartz-magnetite-amphibole gneiss, talc schist and tremolite-actinolite-chlorite schist|metamorphosed basic igneous rock|metamorphosed ultramafic rock||U||17-JAN-23
Rudall Complex - layered orthogneiss|74509|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Statherian||||intrusion|Statherian||||||||No||||||||Layered orthogneiss derived from fine to medium grained granite or monzogranite, and mafic, ultramafic and metasedimentary rocks|high grade metamorphic rock|metamorphosed basic igneous rock||Y||17-JAN-23
Rudall Complex - leucogranite, syenogranite and monzogranite|74520|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Ectasian||||intrusion|Ectasian||||||||No||||||||Equigranular to porphyritic, massive to weakly or strongly foliated leucogranite, syenogranite and monzogranite, with amphibolite xenoliths; locally megacrystic or pegmatitic|acid intrusive rock|||Y||17-JAN-23
Rudall Complex - metamafics and ultramafics|74496|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Mesoproterozoic||||intrusion|Archean||||||||No||||||||Metamorphosed ultramafic rock, mainly serpentinite, orthoamphibolite, metagabbro and dolerite|metamorphosed ultramafic rock|basic intrusive rock||Y||17-JAN-23
Rudall Complex - orthogneiss, schist, amphibolite, metamafics|74510|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Generally banded, even grained and mostly strongly foliated leucocratic to banded orthogneiss, ranging compositionally from granite, monzogranite and granodiorite; locally porphyritic; amphibolite and metasediment lenses or layers; local pegmatite|high grade metamorphic rock|metamorphosed basic igneous rock||Y||17-JAN-23
Rudall Complex - paragneiss, schist, quartzite, metacarbonate, banded iron formation, metachert|74501|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Statherian||||deposition|Statherian||||||||No||||||||Banded quartz-feldspar-biotite paragneiss, schist and quartzite; amphibole-chlorite schist, quartz-garnet-biotite-sulphide schist, partly graphitic metapelite, metacarbonates, metamorphosed banded iron formation, and metachert; minor skarn|metamorphic rock|sedimentary rock||N||17-JAN-23
Rudall Complex - quartz-feldspar gneiss|74511|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Quartz-feldspar-biotite gneiss and charnockite|high grade metamorphic rock|acid intrusive rock||Y||17-JAN-23
Rudall Complex - quartzite, psammitic gneiss|74516|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Rudall Complex|26880|||Statherian|||||Statherian||||||||No||||||||Quartzite, micaceous quartzite, psammitic gneiss, fine quartz-feldspar-muscovite gneiss and schist in places with kyanite, ilmenite, K-feldspar, sillimanite, garnet|metasedimentary siliciclastic rock|high grade metamorphic rock||N||17-JAN-23
Ruins Dolerite|23949|Woodward Dolerite|27939|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Orosirian|1861|||intrusion|Orosirian|1872|||||||No|42815||Griffin T.J., Tyler I.M.|24-AUG-89||||Medium to fine grained metadolerite forming layered (porphyritic/non-porphyritic) mafic sills, with pods of metaperidotite in places.|basic intrusive rock|metamorphosed ultramafic rock||Y||21-SEP-23
Runton Adamellite|31859|Runton adamellite|16456|||Yes|Formation, beds|Informal|STRATLEX Entry|Briefly described|Rudall Complex|26880|Krackatinny Supersuite|31857|Mesoproterozoic|1080||isotopic, Rb/Sr|intrusion|Mesoproterozoic||||||||No|44139|||||||Monzogranite, non-foliated to weakly foliated|acid intrusive rock|||Y||17-JAN-23
Rushall Slate|27300|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|Bookingarra Group|29942|||Mesoarchean|2943|7|isotopic||Mesoarchean|2955||inferred|||300|WA|Yes|38498|39697|A.H.Hickman|08-AUG-77|WA SNSC|14-SEP-79|Formerly  part of Bookingarra Gp  - reclassified into Croydon Group.  Age: 3000-2900Ma. Intruded by Negri Volcanics.  Redefined again as part of the Croydon Group (email - Van Kranendonk/GSWA 2006). Hosts the notable massive sulfide mineralisation. Restored to Bookingarra Group in 2017 redefinition.|Metamorphosed shale and siltstone; minor sandstone; graded beds; locally well-developed slatey cleavage.|metasedimentary siliciclastic rock|||N||17-JAN-23
Russell Charnockite|41851|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Waluwiya Suite|41856|Statherian|||inferred|intrusion|Statherian|||inferred, geochemical correlation||||NT|Yes|72360|67565|D.F. Close, I.R. Scrimgeour, C.J. Edgoose|05-OCT-04|Kruse, P.D.|05-OCT-04|Published in Surface Geology of Australia, 1:1,000,000 scale - Northern Territory.|Undeformed charnockite,orthopyroxene- and clinopyroxene-bearing granite, with rounded phenocrysts of zoned plagioclase 3-5 mm in diameter and pyroxene phenocrysts 1-2 mm in diameter, in a fine-grained groundmass.|acid intrusive rock|||Y||17-JAN-23
Russian Jack Monzogranite|37549|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Archean||||intrusion|Archean||||||||No|||Bagas, L.|01-OCT-02|||Nullagine and Noreena Downs 1:100 000 sheet areas||acid intrusive rock|||Y||17-JAN-23
Ruth Well Formation|33889|Ruth Well Complex|16462|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Roebourne Group|25449|||Paleoarchean|3250|||deposition|Paleoarchean|3270|2|isotopic, U/Pb-Pb/Pb ion probe||1000|2000||No|22449||||||Age: <3.3Ga.  In the Pilbara Craton - West Pilbara Superterrane.  In structural contact with Regal Fm (Regal Terrane).|Includes metabasalt, serpentinised peridotitic komatiite, talc-chlorite schist, grey- and white-banded chert  and black chert (Van Kranendonk 2006).|metamorphosed basic igneous rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Ryan Well granite|72441|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||||||intrusion|||||||||No|||||||Informal name for Eastern Goldfields Province data (HG 09/2006). Where published?||acid intrusive rock|||Y|I-type|17-JAN-23
Ryansville Formation|26883|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Glen Group|74811|||Neoarchean|2725|||deposition|Neoarchean|2740|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|30960||||||Geological province: Murchison Domain.|Schistose pelite and psammite; local biotite porphyroblasts, minor bands of felsic volcaniclastics; siltstone, sandstone, chert pebble to boulder conglomerate; metamorphosed; basalt, massive to foliated, locally pillowed, vesicular, metamorphosed|metasedimentary siliciclastic rock|basic volcanic rock||N||17-JAN-23
Sabina Sandstone|16492|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Anisian||||deposition|Changhsingian||||||561|WA|No|36890|36293||||||Predominantly green-grey, micaceous, poorly consolidated sandstone, with interbedded grey shale and siltstone.  Correlates with the Kockatea Sandstone (Northern Perth Basin).|siliciclastic sedimentary rock|||N||17-JAN-23
Saddle Creek Formation|16494|||||Yes|Formation, beds|Formal|Other new published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Stenian|1049|20|isotopic, U/Pb-Pb/Pb ion probe||160|222|NT|No|32310|48938|||||Previously mapped as Yambarra Beds (Randal, 1962). Max. thickness: >222m. Victoria Basin. Hosts barite at the Saddle Creek deposit.|Basal cross-bedded sandstone; upper siltstone, oolitic dolostone, dolomitic sandstone; minor shale, dolostone, dolarenite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Saddleback Group|16497|||||Yes|Group, Suite|Formal|Unknown or process pending|Defined|||||Archean|||||Archean|||||||WA|No|33800|33800||||||Sequence of sedimentary, pyroclastic and volcanic (both felsic and mafic) rocks, metamorphosed to greenschist or lower amphibolite facies.||||N||17-JAN-23
Sadler Limestone|27229|Sadler Formation|28219|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Frasnian||||deposition|Givetian||||||300|WA|No|44397|45153|||||Interfingers with laterally located Gogo Shale, Virgin Hills Formation and Pillara Limestone.|Fossiliferous, shallow marine reef complex marginal slope facies yellow to light grey calcarenite and calcirudite with thinner beds of calcareous siltstone and shale; slump folding is common, with rolled blocks of reef limestone in places|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Safety Bay Sand|16508|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Holocene|.003|||deposition|Holocene||||||6|WA|No|30939|40367|||||Of Passmore (1967, 1970) and Playford and Low (1972). Age: ~3670 BP. Originally included Becher Sand (seagrass bank suite of sand) which was separated out by Semeniuk and Searl (1983). Distribution of the formation coincides with that of the Quindalup Dune System (GSWA Bull 124, p. 212, 1976)[RefID 36293].|Quartz skeletal sand, humic quartz sand (soil), calcreted sand, medium and coarse sand and shelly sand, and beach rock.|regolith|||N||17-JAN-23
Saffron Sandstone|34609|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Barremian||||deposition|Barremian||||||||No|22702||||||	||siliciclastic sedimentary rock|||N||17-JAN-23
Sahara Formation|23950|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carribuddy Group|3686|||Ludlow|425|||deposition|Llandovery|||biozone|||280|WA|No|40837|40837|P.Lehmann|20-JAN-84||||Dominantly red-brown argillaceous, silty and sandy dolomite grading to dolomitic mudstone, with minor sandstone interbeds; anhydrite is common throughout as small nodules and vein fillings. Pale green reduction spots.|carbonate sedimentary rock|fine grained siliciclastic rock||N||25-MAY-23
Sahul Group|16515|Sahul Formation|23951|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Rhaetian|203||||Anisian|245|||||||No|41532|||||| Age: 245-~203Ma.|Interbedded sandstone, limestone, dolomite and shale; minor coal, evaporite and volcanics.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Saint George Member|16532|Saint George Formation""|16531|||Yes|Member, phase|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41839||||||Supersedes "Saint George Formation"|||||N||17-JAN-23
Saint Ives Group|16537|||||Yes|Group, Suite|Formal|Unknown or process pending|Mentioned||||||||||||||||||No|38453|||||||||||N||17-JAN-23
Salgash Subgroup|16559|||||Yes|Subgroup|Formal|Resvd name published|Defined|Warrawoona Group|19508|||Paleoarchean|3427|||deposition|Paleoarchean|3458|||||8000|WA|Yes|31853|31853|Hickman A.H., Lipple S.L.|04-MAR-74|WA SNSC|06-JAN-75|Age:3520-3400Ma. Within Pilbara Supergroup in Pilbara Craton. Originally included Towers Fm, Apex Basalt, Panorama Fm.+ Euro Basalt (Hickman 1983) - Euro Basalt  now reassigned to Kelly Group. Subgroup redefined as only Apex Basalt and Panorama Formation.|Banded iron formation, shale, felsic volcaniclastics, chert, jaspilite, agglomerate, dolerite, basalt, ultramafic rocks, basaltic andesite, amphibolite, chlorite schist, felsic schist, komatiitic basalt, siliciclastic rocks; metamorphosed|metamorphosed acid igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Salisbury Gneiss|68076|||||Yes|Formation, beds|Formal|Variation of published name|Described|Nornalup Complex|14258|||Mesoproterozoic||||metamorphism|Mesoproterozoic|1214|8||||||No|24526||||||Part of the Albany-Fraser Orogen.|Pelitic gneisses and mafic granulite, porphyritic granitic gneiss and two-pyroxene metagabbro. Garnet-cordierite migmatite.|high grade metamorphic rock|||N||17-JAN-23
Sally Downs Supersuite|31785|||||Yes|Supergroup|Formal|STRATLEX Entry|Described|||||Orosirian|1800|||intrusion|Orosirian|1835|||||||No|43853||||||Age updated by I.Sweet.  Type example is Sally Downs Suite? See also Sally Downs supersuite.|Granite, gabbro, and layered mafic--ultramafic intrusions.|acid intrusive rock|basic intrusive rock||Y|I-type|17-JAN-23
Sally Downs Supersuite - norite, gabbronorite, gabbro|74494|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Sally Downs Supersuite|31785|Orosirian||||intrusion|Orosirian||||||||No||||||||Biotite-bearing norite, gabbronorite and minor gabbro; veins of intermediate hybrid rock; hybrid rock cut by veins of coarse-grained porphyritic tonalite and granodiorite|basic intrusive rock|||Y||17-JAN-23
Sally Downs Tonalite|16567|||||Yes|Formation, beds|Formal|Other new published name|Described|||Mabel Downs Suite|30660|Orosirian|1821|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1821|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|41977||||||Kimberley Province. Within the Sally Downs Supersuite.|Medium-grained, even textured biotite-hornblende tonalite; minor biotite-bearing quartz diorite and biotite leucogranite.|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
Sally Malay Complex|81572|Sally Malay Intrusion|81432|||Yes|Subgroup|Informal|Variation of published name|Briefly described|||Sally Malay Suite|78623||||||||||||||No|71873|||||||||||Y||17-JAN-23
Sally Malay Suite|78623|Sally Malay intrusions|31797|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Orosirian|1841|3|isotopic||Orosirian|1844|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|69165||||||Equivalent to the 'Sally Malay intrusions' shown on the McINTOSH 1:100 000 and DIXON RANGE 1:250 000 map sheets, and roughly equates with the Group V layered intrusions of Hoatson (2000). Of the 'Group V' intrusions, the Sally Malay, Dave Hill, Fletcher Creek, Frog Hollow, Mabel Downs Homestead, McKenzie Spring, Wilson Creek, and Spring Creek intrusions are considered to belong to the Sally Malay Suite.|Layered mafic-ultramafic intrusions: gabbro, orthopyroxenite, leucogabbro, leucogabbronorite, anorthosite, olivine gabbro, olivine gabbronorite, gabbronorite, troctolite, olivine leucogabbro, peridotite, dunite, wehrlite, harzburgite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Salt Creek Gabbro|80512|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Mesoproterozoic|1000||inferred||Mesoproterozoic|1300||inferred|||||No|72034||Spaggiari, C. (GSWA)|09-APR-18|||Unexposed mafic intrusive unit assigned to the Moodini Supersuite, intersected during drilling of Madura Province basement underlying the Eucla and Bight Basins. Published in: Occhipinti, SA, Doyle, M, Spaggiari CV, Korsch, R, Cant, G, Martin, K, Kirkland, CL, Savage, J, Less, T, Bergin, L and Foz, L 2014, Interpretation of the deep seismic reflection line 12GA-T1: northeastern Albany-Fraser Orogen, in Albany-Fraser Orogen seismic and magnetotelluric (MT) workshop 2014: extended abstracts compiled by CV Spaggiari and IM Tyler, Geological Survey of Western Australia, Record 2014/6, p. 52-68. Plumridge Map Sheet. Unexposed gabbro and gabbronorite identified by a distinct, north-northeasterly trending belt of remanently magnetized intrusions within the east Albany-Fraser Orogen that were intersected in exploration drillcores. The age of the gabbro is unknown, and it intrudes metasedimentary rocks of unknown age. Originally informally named the Salt Creek Complex by Mithril Resources Limited (2003, 2005) who identified it in drillcores. Gabbroic bodies range from 2-12km in diameter. Appears to intrude the Northern Foreland, Tropicana and Biranup Zones based on magnetic images where magnetic lows are coincident with drilled gabbroic rocks. May be part of the Gnowangerup-Fraser Dyke Suite or represent a younger event.|Quartz diorite gabbro, gabbro, oligoclase-labradorite-orthopyroxene-clinopyroxene-biotite-magnetite-quartz gabbro and plagioclase-clinopyroxene-bitoite-ilmenite-magnetite-apatite gabbro.|basic intrusive rock|||Y||17-JAN-23
Salt River Group|30327|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Pliocene|||||Oligocene||||||||No|22769||Salama R.B.|04-JUL-96|||Consists of: South Caroline Clay, Yenyening Formation and Quairading Sandstone. Possibly Oligocene to Pliocene age. In Yilgarn Craton area.|A palaeochannel system of sediments.|regolith|||N||17-JAN-23
Salt Well Member|36640|||||Yes|Member, phase|Formal|Resvd name published|Described|Lalla Rookh Sandstone|28108|||Mesoarchean||||deposition|Mesoarchean||||||||No|50302||Smithies R. H.|25-OCT-01|||De Grey (2757) area, Pilbara region. Port Hedland 1:250 000 sheet area. Redefined from the now defunct Paradise Plains Formation and reassigned to the new Bookingarra Formation of the Croydon Group (GSWA Mar.06).In 2016 Hickman states in GSWA Report 160 p59 that Salt Well Member, which is in the East Pilbara Terrane, E of the Ord Range greenstone belt,  is now considered part of the Lalla Rookh Sandstone.|Mafic volcanic and intrusive rocks; includes debris-flow deposits; metamorphosed.|basic intrusive rock|basic volcanic rock||N||17-JAN-23
Salvation Group|35575|||||Yes|Group, Suite|Formal|Resvd name published|Described|Bangemall Supergroup|34951|||Mesoproterozoic|1066|14|inferred||Mesoproterozoic|1460||inferred|||||No|50319||Hocking R.|22-AUG-00|||Late Mesoproterozoic succession in Central WA. Same age as Mission Group.  Replaces part of Sunbeam Group. Salvation Basin.|Sandstone and siltstone, lesser conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Samphire Marsh Member|79800|||||Yes|Member, phase|Formal|Resvd name published|Defined|Nambeet Formation|26070|||Dapingian|||biozone|deposition|Tremadocian|||biozone|deposition|||WA|Yes|73344|73344|Normore, L. (GSWA)|21-MAR-17|Haines, P.(GSWA) WA stratigraphy subcommission|23-FEB-21|Lagrange SE51-10, Roebuck Plains 3461. Mudstone dominated interval with limestone interbeds and limestone nodules throughout. Type section is in petroleum well Olympic 1, Broome Platform, Canning Basin. Unit is 200 metres thick with continuous core from upper contact with overlying Willara Formation to the lower contact with the lower Nambeet Formation (Fly Flat Member: also reserved and defined). Published in Dent et al. (2021) Reference Section, revised stratigraphy and facies analysis of the Ordovician Nambeet Formation, Canning Basin, W.A. GSWA Report 211.|Mudstone dominated interval with limestone interbeds and limestone nodules throughout.|fine grained siliciclastic rock|carbonate sedimentary rock||N||26-JUL-23
Samuel Formation|16579|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Aptian||||deposition|Aptian|||||||WA|No|31914|45153|||||Often shown in Canning Basin diagrams. May be considered both Gunbarrel Basin and Canning Basin unit?|Siltstone, sandstone and claystone; micaceous, carbonaceous; locally glauconitic.|siliciclastic sedimentary rock|||N||21-SEP-23
Samuel Formation and Bejah Claystone|80961|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Albian|||inferred, biostratigraphic correlation||Aptian|||inferred, biostratigraphic correlation|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia. Informal combination of units to suit map scale. Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Siltstone, sandstone and claystone; carbonaceous, locally glauconitic; radiolarian siltstone in Bejah Claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
San Sou Monzogranite|22810|||||Yes|Formation, beds|Formal|Resvd name published|Described|||San Sou Suite|31896|Statherian|1788|6||magmatic crystallisation|Statherian|1788|6|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|44693||Griffin T.J. & Tyler I.M.|09-DEC-92|||East Kimberly Region. Dated at 1788 +/- 6 Ma and 1790 Ma. See also San Sou Granite.|Medium- to fine-grained biotite monzogranite; scattered fine-grained mafic inclusions.|acid intrusive rock|||Y||17-JAN-23
Sandbar Sandstone|74206|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Weaber Group|19643|||Visean|||inferred, lithostratigraphic correlation|deposition|Visean|||inferred, lithostratigraphic correlation||||WA|No|61542||||||Newly added to the Weaber Group -  forms part of revision by Gorter et al (2005). Overlain by Sunbird Fm.which may(?) truncate it, or it it pinches out. Geological province: onshore Bonapart Basin/Petrel-Sub-basin.|Loose, very well sorted , fine-grained to rarely medium-grained sandstone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Sandfire Calcilutite|74623|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||10|WA|Yes|64449|64449|V. Semeinuk||Hocking, R.|29-JUL-08|Originally reserved as Sandfire Flat. PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.  Radiocarbon dating of shells and sediment within the Formation places it in the Holocene, viz., 1390 +/-170 yrs BP, 3170 ± 180 yrs BP, 3170 ± 130 yrs BP, 3415 +/- 260 yrs BP, 4070 +/- 220 yrs BP, 4470 +/- 120 yrs BP, 5070 +/-270 yrs BP, 7280 +/- 290 yrs BP, 7450 ± 190 yrs BP.|Light-coloured to white, cream to grey bioturbated to structureless to locally root-structured to laminated calcilutite and shelly calcilutite.||||N||17-JAN-23
Sandpiper Sandstone|23956|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Flamingo Group|6726|||Valanginian|136|||deposition|Berriasian|142||||||WA|No|41459|42442|A.J.Mory|17-JUL-87||| Age: ~142-~136Ma.|Fine to coarse grained glauconitic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Sandy Blight Quartzite|42367|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleoproterozoic||||deposition|Paleoproterozoic|1680|3|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|61387||Close, D.|13-DEC-04|||Mount Rennie 1:250, 000 map sheet (SF52-15).  Of the Kintore Domain, Warumpi Province.|Interlayered and strongly foliated quartzite and quartz-muscovite schist with minor metabasite|metasedimentary siliciclastic rock|||N||17-JAN-23
Sandy Dam Monzogranite|22815|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||Sheppard S., Tyler I.M., Griffin T.J.|23-FEB-95|||East Kimberley region|Foliated, medium- to coarse-grained biotite monzogranite; minor biotite granodiorite.|acid intrusive rock|||Y||17-JAN-23
Santa Ana Trondhjemite|35666|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|2600||inferred||Mesoarchean|3010||inferred|||||No|23137|||||||Medium-grained tonalite-trondhjemite; plagioclase+/-biotite+/-muscovite+/-quartz; massive to strongly foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Santa Claus Member|35606|Santa Claus Ironstone member|16618|||Yes|Member, phase|Formal|Resvd name published|Defined|Mount Belches Formation|35605|||Archean||||deposition|Archean||||||150||No|23582|23584|Painter M.|20-SEP-00|||To be used in Mount Belches 3335 1:100 000 sheet explanatory notes. Redefinition of type section.|Iron formation unit comprising wacke. mudstone and ferruginous mudstone.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Satellite Igneous Complex|78348|Cemetery Layered Mafic-Ultramafic Complex|80123|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Neoarchean|2660||inferred||Neoarchean|2720||inferred|||||No|70153||Sapkota, J. (GSWA)|30-AUG-13|||The Satellite Igneous Complex is a concordant mafic-ultramafic intrusive body that lies between the Hickies Bore Basalt and the Songvang Formation (mainly basaltic) in the Agnew-Lawlers area. It grades from peridotite and pyroxenite at the base to gabbro and dolerite on the top wheretobepublished = GSWA digital package 2013/2014. Geographical name = Satellite Well.|Gabbro, dolerite, and intrusive ultramafic rocks; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Satirist Monzogranite|73588|Satirist Granite|16636|||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Archean|2931|5|isotopic|intrusion|Archean|2938|4|isotopic|||||No|64580||||||Geological province: Mallina Basin/Pilbara Craton.|Leucocratic monzogranite and syenogranite; metamorphosed|acid intrusive rock|||Y||05-JUN-23
Satisfaction Supersuite|81324|||||Yes|Supergroup|Informal|Other new published name|Mentioned||||||||||||||||||No|70020|||||||||||Y||17-JAN-23
Saunders Creek Formation|26135|||||Yes|Formation, beds|Formal|Other new published name|Defined|Halls Creek Group|27793|||Orosirian|1880|||deposition|Orosirian|1912||inferred, underlying unit|||200|WA|No|44317|45047|||||Defn on Tech File SE/52-10. Of the Halls Creek Orogen. In the Lamboo Complex (eastern zone).  Age: c.1880Ma. Different unit from Saunders nomenclature for NT granite and suite.|Cross-bedded quartzite, arkosic quartzite, lithic arenite and quartz conglomerate; interbedded, buff-coloured phyllite is prominent near the top of the sequence.|metasedimentary siliciclastic rock|||N||17-JAN-23
Savannah North intrusion|81577|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Sally Malay Complex|81572|||Orosirian|1842|3|inferred, intrusive relationship|magmatic crystallisation|Orosirian|1839|5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|71873||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Almost entirely peridotite and olivine gabbros interlayered on 10¿100m scale.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Savannah intrusion|79545|Sally Malay intrusion|76770|||Yes|Formation, beds|Informal|Other new published name|Described|Sally Malay Complex|81572|||Paleoproterozoic|||||Paleoproterozoic|1844|3||||||No|69003||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Layered mafic-ultramafic intrusion.Interlayered cumulate peridotite, troctolite and olivine gabbronorite, transitioning upward to a sequence dominated by cumulate norite.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Sawpit Member|16648|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Noganyer Formation|14203|||Archean||||deposition|Archean||||||||No|30562||||||NOT related to Sawpit Sandstone, SA, VIC.|||||N||17-JAN-23
Scamp Formation|76744|Scamp volcanic association|35901|||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Palgrave Group|76740|||Stenian|1063||inferred|eruption|Stenian|1077||inferred|||||No|69153||Howard, H.M. (GSWA)|17-JAN-12|||Bentley Basin. Talbot 1:250k sheet SG52-09. To be published: Werner, M, Howard, HM, Smithies, RH, Aitken, ARA and Medlin C 2012, Mount Eveline, WA Sheet 4345: Geological Survey of Western Australia, 1:100 000 Geological Series.|Rhyolite, possibly as lavas and pyroclastic rocks, but may also include subvolcanic intrusions; typically shows a fine- to coarse-grained granofelsic texture, indicating weak to moderate recrystallization.|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
Scorpion Group|16679|Scorpion Subgroup|16680|||Yes|Group, Suite|Formal|Variation of published name|Fully described|Bangemall Supergroup|34951|||Mesoproterozoic|1200||||Statherian|1640|||||2000||No|35596||||||Extract: ----"The Scorpion `Subgroup' of Williams (1990a) is here raised to group status, following the elevation of the Bangemall 'Group' to supergroup status by Martin et al. (1999). There are at least three thick couplets of evaporitic dolomite overlain by mixed sandy and silty siliciclastic rocks. The Scorpion Group was deposited in a northward-deepening coastal setting, sourced from adjacent areas to the south. The pattern of outcrop suggests that there is a major evaporitic diapir (now collapsed because of salt solution and withdrawal) in the central part of the graben occupied by the group. Formations have not been established within the group, although this would be possible with further work. The Scorpion Group is a probable correlative (based on tentative stromatolite biostratigraphy, Grey, K., GSWA, 2000, pers. comm.) of the lower parts of the latest Palaeoproterozoic - early Mesoproterozoic Edmund Group, the lowermost component of the Bangemall Basin that is exposed about 200 km to the west (Fig. 3; Martin et al., 1999). Dating using U-Pb SHRIMP suggests that deposition of the Edmund Group began at about 1640 Ma (Nelson, 1995)".   SOURCE DOCUMENT::   HOCKING, R. M., JONES, J. A., PIRAJNO, F., and GREY, K., 2000, Revised lithostratigraphy for Proterozoic rocks in the Earheedy Basin and nearby areas: Western Australia Geological Survey, Record 2000/16.|Cross bedded sandstone and siltstone with interbedded stromatolitic dolomite and evaporites.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Scotia Basalt|16682|Scotia basalt|16683|||Yes|Formation, beds|Formal|Variation of published name|Described|Broad Arrow Subgroup|79354|||Archean||||eruption|Archean||||||250||No|42221||||||Previously of Coolgardie Group. Now (2016) reassigned to the Broad Arrow Subgroup, Kalgoorlie Group. Scotia Basalt lies within the Bardoc and Kalgoorlie 1:100K  map sheet areas.|Basalt; pillowed to massive; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Scott Rock monzogranite|81329|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Stenian|||inferred||Stenian|1175|12|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70023||||||Also referred to as just Scott Rock, or Scott Rock granite. Crystallisation age of 1175+\-12 Ma for the monzogranite at Scott Rock is typical of the ages of Esperance Supersuite granites (1200-1140 Ma, Kirkland et al., 2014). Intruded into Ragged Basin/Mount Ragged Formation. Post-dates Ragged Basin deformation and 1175+\-12 Ma monzogranite age provides minimum age of structural emplacement of Ragged Basin thrust slices.||acid intrusive rock|||Y||17-JAN-23
Scotty Creek Formation|31033|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||deposition|Archean|2664|5||||1500||No|43776||||||Used at Emu gold deposit, Agnew. See 'Geology of the Mineral Deposits of Australia & PNG' (1990) p323-329. Said in 2003 GSWA Report 84, p13 to be a local name for Jones Creek Conglomerate, but lateral equivalence now less certain and name to be revived  [advice from J. Sapkota, GSWA 5-JUL-2013]. SH51-1 Munjeroo 2941sheet area. See also Scotty Creek Conglomerate, Scotty Creek Metasediments.|Sandstone, siltstone and conglomerate. The unit is metamorphosed and locally schistose.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Scrubber Granite|32582|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Moorarie Supersuite|33440|Statherian|1796|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1800|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|23486||Sheppard S.|22-JUL-98|||Glenburgh 1:250 000 sheet area, SG50-6, Gascoyne region.|Porphyritic to equigranular, coarse-grained, biotite- and muscovite-bearing monzogranite, syenogranite, and pegmatite; locally tourmaline bearing. Orbicular texture in places.|acid intrusive rock|||Y||17-JAN-23
Scrubby Tank Gabbro|78608|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2650||inferred|intrusion|Mesoarchean|2960||inferred|||||No|70153||Hall, C. (GSWA)|10-DEC-13|||Lake Lefroy map sheet area. To be published: East Yilgarn 2013-14 update. Digital package Geological Survey of Western Australia.|Gabbro; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Scrutons Monzogranite|29212|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|42710||Griffin T.J., Tyler I.M.|22-FEB-90||||Coarse porphyritic biotite monzogranite, partly recrystallised or chloritised in places|acid intrusive rock|||Y||17-JAN-23
Scuddles Member|78986|Scuddles Formation|40548|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Gossan Hill Formation|78983|||Mesoarchean|2958|6|isotopic|magmatic crystallisation|Mesoarchean|2962|||||||No|70769||Ivanic, T. (GSWA)|07-JAN-15|||Used in Murchison Domain updates in 2015. Conformably overlying Golden Grove Member and underlying Minjar Member. Probably locally transgressive downward into Golden Grove stratigraphy.|Porphyritic dacite with lesser rhyodacite and felsic volcaniclastic units; locally with significant sulphide mineralization; metamorphosed.|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
Scutellid Bed|72566|||||Yes|Bed|Informal|Other new published name|Briefly described|Virgin Hills Formation|19137|||Frasnian|||||Frasnian||||||||No|62735||||||Informally named bed containing rich macrofossil assemblages within the Virgin Hills Formation.|||||N||17-JAN-23
Seabrook Intrusion|78628|Seabrook Sill|36854|||Yes|Formation, beds|Informal|Variation of published name|Described|||||Neoarchean|||||Neoarchean||||||||No|69152||||||Includes 3 unnamed subunits.[Comment from GSWA June 2016: is likely to become an Igneous Complex at Formation rank]|Peridotite, commonly altered to a talc-carbonate assemblage; cumulate texture; pyroxenite, gradational contact with overlying gabbro; gabbro with subordinate pyroxenite; all metamorphosed|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Searle Hills Conglomerate|80524|Sir Frederick Conglomerate|16942|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Cambrian|||inferred||Ediacaran|||inferred|||300|WA|Yes|||Haines, P., H-J. Allen (GSWA)|19-APR-18|Haines, P.|17-DEC-20|WA Amadeus Basin. Only exposed in the Searle Hills, which will be the type area. Previously mapped as Sir Frederick Conglomerate, but contact relationships indicate that it is older than the Sir Frederick. On GSWA map via their 2020 1:500K interpreted bedrock geology layer on GeoVIEW and published via their explanatory notes system.|Conglomerate consisting of rounded pebble-, cobble- and boulder-sized clasts in a very friable, coarse, sandy matrix. The larger clasts are mainly of quartzite, sandstone and metasandstone, with pebble clasts including minor chert and white quartz.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Second Valley quartzite|16720|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|37539|||||||||||N||17-JAN-23
Secure Bay Monzogranite|16723|Secure Bay Adamellite|16722|||Yes|Formation, beds|Formal|Variation of published name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|42815||||||GSWA geochron record 1382 states that this unit is in the Western Zone of the Lamboo Province of Griffin et al. (2000).|Foliated, sparsely porphyritic, medium to fine grained biotite monzogranite with minor syenogranite and granodiorite; numerous shear zones and quartz veins|acid intrusive rock|||Y||17-JAN-23
Seecliff Sandstone|70716|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Ediacaran||||deposition|Neoproterozoic III||||||||No|62453||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Seeligson Monzogranite|79006|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Walganna Suite|74845|Neoarchean||||magmatic crystallisation|Neoarchean|2626|6|isotopic|||||No|71809||Ivanic, T. (GSWA)|13-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Seeligson Well, Ninghan 1:100k sheet area. 29deg11'S 117deg06'E. Type area: not specified. Crosscuts all units in the region such as Tuckanarra Suite granitic rocks and Mougouderra Basin metsedimentary rocks.|Equigranular coarse-grained, undeformed monzogranite with 4-12 mm grain size; locally with 30 mm long K-feldspar megacrysts;  metamorphosed.|metamorphosed intermediate igneous rock|||Y||17-JAN-23
Sefton Greenstones|16724|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|30440|||||||||||N||17-JAN-23
Selby Granite|78854|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||Frederick Suite|40071|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|66468||||||Lack of negative gravity anomaly suggests this unit is thin. Highly magnetic. Chemical parent (Frederick Suite) is I-type.||acid intrusive rock|||Y||17-JAN-23
Semaphore Sand Member|33996|Semaphore Sand|16747|||Yes|Member, phase|Formal|Variation of published name|Described|Saint Kilda Formation|16542|||Holocene||||deposition|Holocene||||||3||No|22525|||||||Unconsolidated, white bioclastic quartz-carbonate sand of modern beaches and transgressive dune fields. Foredune and dune sand.|regolith|||N||11-FEB-23
Septimus Limestone|16758|Mount Septimus Limestone|13095|||Yes|Formation, beds|Formal|Other new published name|Defined|Langfield Group|10161|||Tournaisian||||deposition|Tournaisian||||||180|NT|No|44965|45038|||||Defined as Septimus Formation by Guillaume (1966). See also Lexicon. SD52-10,14. Formerly called "Mount Septimus Series", "Mount Septimus Limestone".|Dolomitic and calcareous sandstone, minor limestone.|carbonate sedimentary rock|||N||17-JAN-23
Sequence HR4-1|33843|||||Yes|Formation, beds|Informal|Sequence strat published|Described|Turee Creek Supersequence|33832||||||||||||||||No|22546||||||Described. Turee Creek Basin.|||||N||17-JAN-23
Sequence HR4-2|33845|||||Yes|Formation, beds|Informal|Sequence strat published|Described|Turee Creek Supersequence|33832||||||||||||||||No|22546||||||Described. Turee Creek Basin.|||||N||17-JAN-23
Sequence HR4-3|33850|||||Yes|Formation, beds|Informal|Sequence strat published|Described|Turee Creek Supersequence|33832||||||||||||||||No|22546||||||Described. Turee Creek Basin.|||||N||17-JAN-23
Sequence HR4-4|33852|||||Yes|Formation, beds|Informal|Sequence strat published|Described|Turee Creek Supersequence|33832||||||||||||||||No|22546||||||Described. Turee Creek Basin.|||||N||17-JAN-23
Sequence HR4-5|33853|||||Yes|Formation, beds|Informal|Sequence strat published|Briefly described|Turee Creek Supersequence|33832||||||||||||||||No|22546||||||Briefly described. Turee Creek Basin.|||||N||17-JAN-23
Seven Mile Sandstone Member|77926|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Kurrawang Formation|26677|||Neoarchean|2655||inferred|deposition|Neoarchean|2657||inferred, underlying unit|deposition||1300|WA|No|70153||Hall, C. (GSWA)|27-JUN-13|||Upper section of the Kurrawang Formation. Approximately 1300m thick. See also GSWA Expan.Notes: https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=3922.|Quartz-rich sandstone; massive to planar bedded; rare pebble lags and cross-bedding; metamorphosed.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Shady Camp Limestone Member|28996|Shady Camp Limestone|16789|||Yes|Member, phase|Formal|Unknown or process pending|Described|Panton Formation|14839|||Middle Cambrian||||deposition|Middle Cambrian||||||4||No|41840|||||||Grey, stromatolitic fossiliferous and oncoid limestone.|carbonate sedimentary rock|||N||17-JAN-23
Shallow Shelf Carbonate|16793|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|41217|||||||||||N||17-JAN-23
Shamba Kappa Syenite|16794|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||intrusion|||||||||No|40811|||||||||||Y||17-JAN-23
Shanes Dam Conglomerate|79162|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Paleozoic|||inferred, overlying unit|deposition|Lower Devonian|407||isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|1|25||No|70772||Spaggiari, C. (GSWA)|04-AUG-15|||a conglomerate at the base of the Loongana Formation. A single concordant zircon grain with a Devonian age of 407Ma is an outlier in the detrital zircon age signature,which provides a maximum depositional age constraint.|High ferruginised conglomerate: oligo- to polymict, with typically well rounded sandstone, soft green and white claystone, vein quartz, mafic and gneissic/granitic clasts identifiable.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Sharks Formation|16806|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|30766|||||||||||N||17-JAN-23
Shay Intrusion|32780|||||Yes|Formation, beds|Formal|Other new published name|Defined|Dalton Suite|32238|||Archean||||intrusion|Archean|3048|||||500||No|44229|60429|||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Metamorphosed gabbro, epidotised gabbro, quartz gabbro, gabbronorite, norite, pyroxenite|basic intrusive rock|||Y||17-JAN-23
Shepherds Bore Granite|31895|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Kevins Dam Suite|31898|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|43854||||||Briefly described. Halls Creek Orogen. Mainly Gordon Downs 1:250 000 sheet area. Supposed to be superseded by Shepherds Bore Plutonic Complex (see definition). Used in Proterozoic Granites GIS. Use revived by GSWA - see Kimberley 2013 update.|Weakly porphyritic, biotite monzogranite and syenogranite.|acid intrusive rock|||Y||17-JAN-23
Sherlock Bay Complex|38617|||||Yes|Group, Suite|Formal|Variation of published name|Briefly described|||||Archean|||||Archean||||||||No|23784|||||||||||N||17-JAN-23
Sherlock Intrusion|37207|||||Yes|Formation, beds|Formal|Other new published name|Described|||Radley Suite|68740|Mesoarchean|2925|4||intrusion|Mesoarchean|2925|4||||||No|24024||||||Replaces Sherlock River complex?? Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Olivine gabbro, leucogabbro, granophyric gabbro, minor pyroxenite, granophyre; metamorphosed.|basic intrusive rock|acid intrusive rock||Y||17-JAN-23
Sherlock River complex|16830|||||Yes|Group, Suite|Informal|Other new published name|Mentioned||||||||||||||||||No|41594|||||||||||N||17-JAN-23
Shilliman Monzogranite|70641|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Carlindi granitoid complex|39735|||Archean|2930|3||intrusion|Archean|2930|3||||||No|61252||||||||acid intrusive rock|||Y||17-JAN-23
Shingle Creek Group|79382|Wyloo Group, lower|40409|||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Paleoproterozoic|2208||inferred, intrusive relationship|minimum depositional age|Paleoproterozoic|2340|22|inferred, underlying unit|maximum depositional age|0|3200|WA|Yes|70795||Martin, D. (GSWA)|10-MAR-16|||Map Sheet: SF50-10 Wyloo 1:250k. Nearest Town: Paraburdoo. The Shingle Creek Group is proposed as the formal name to replace the informal lower Wyloo Group. As such it includes the Beasley River Quartzite, Cheela Springs Basalt, and Wooly Dolomite. Wyloo Group is now reserved for what was informally referred to as the upper Wyloo Group. To be published = The name has been used on all WA state-level datasets and maps since 2014, and is mentioned in the explanatory notes that accompany the 1:2 500 000 state map. A full formal description will soon be published in ENS, and may be included in a Record or external publication soon. See also the equivalent Horseshoe Supersequence.|Quartz sandstone, conglomerate, siltstone, and mudstone at the base, overlain by about 2 km of massive to amygdaloidal and vesicular basalt.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Shoal Reach Formation|16839|||||Yes|Formation, beds|Formal|Other new published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Cryogenian||||||100|NT|No|32310|48938||||||Quartzose and silty dolostone, dololutite, dolarenite, dolostone, sandstone; minor siltstone and shale; local intraformational conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Sholl Creek Member|16852|Sholl Creek Formation|16851|||Yes|Member, phase|Formal|Variation of published name|Fully described|Wongawol Formation|26231|||||||deposition|||||||1500||No|31217|||||||||||N||17-JAN-23
Sholl Shear Zone mafic volcanics, amphibolite, ultramafics 78362|78362|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Minor deformed mafic volcanic rocks associated with mylonitic granitic rocks; felsic volcanic and sedimentary rocks in Sholl Shear Zone, Pilbara Craton. Sholl Shear Zone is up to 1000 m wide. Source: Hickman, A.H. and Smithies, R.H., 2001. Roebourne, Western Australia (Second Edition), 1:250 000 Geological series map (Sheet SF 50-3). Geological Survey of Western Australia: Perth, Explanatory Notes, 52 pp.|Deformed mafic volcanics, amphibolite, minor ultramafic rocks|basic volcanic rock|||N||17-JAN-23
Shoonta Hill Sand|22841|Shoonta Hill Limestone|29877|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||8|WA|Yes|64449|64449|Semeniuk, V.|27-FEB-95|Hocking, R.|29-JUL-08|In sheet area SE51-13. Radiocarbon dating of shells and soil within the Formation places this unit in the Holocene, viz., 1190 +/-170 yrs BP, 2440+/-190 yrs BP.  PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148.|In general, light-coloured to white, laminated, cross-laminated to bedded, to structureless and root-structured quartzose calcareous fine to medium sand.||||N||17-JAN-23
Shotts Formation|23966|Stockton Formation|17346|||Yes|Formation, beds|Formal|Resvd name published|Defined|Stockton Group|26911|||Asselian||||deposition|Gzhelian||||||||No|42711|42711|Le Blanc Smith, Guy|18-MAR-92|||Geological province: Collie Basin.  Originally defined as maximum age = Late Carboniferous|Mainly diamictite, tillite, sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Siberia Komatiite|16869|||||Yes|Member, phase|Formal|Variation of published name|Described|Walter Williams Formation|24071|||Archean||||eruption|Archean|2705||inferred|||2600||No|42221||||||Previously considered a Formation rank unit within the Linger and Die Group, with Walter Williams Fm underlying. Now (2016) reassigned as a Member level unit within the Walter Williams Formation, Vetters Subgroup, Kalgoorlie Group.|Komatiite; locally preserved olivine-spinifex texture; commonly serpentinized or silicified.|ultramafic volcanic rock|||N||17-JAN-23
Siffleetes Granodiorite|41173|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Cleland Supersuite|68665|Paleoarchean||||intrusion|Paleoarchean||||||||No|50379||||||East Pilbara Terrane.|Meta biotite-hornblende granodiorite; locally common amphibolite and diorite xenoliths; moderately to strongly foliated.|acid intrusive rock|||Y||17-JAN-23
Siggins Spring Member|23969|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Frasnian||||deposition|Frasnian|||||||WA|No|40993|40993|G.M.Beere, A.J.Mory|23-MAR-84||||||||N||17-JAN-23
Silt Dam Monzogranite|23970|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|41786||Dunn P.|19-JAN-89||||Seriate biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Silurian sedimentary rocks 76715|76715|||||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
Silver Lake Member|23972|||||Yes|Member, phase|Formal|Variation of published name|Described|Kambalda Komatiite|9165|||Neoarchean||||deposition|Neoarchean|2709|4|||30|200||No|41670||Archibald N.J., Cowden A.|16-DEC-86|||mention as Silver Lake Peridotite in Clark et al (1986) p244, and other refs. Hosts Ni mineralisation.|Komatiite, lower unit; pyroxenite; cumulate to spinifex-textured flows 10--100 metre thick; nickel sulfides common; thin intercalated sedimentary units; commonly serpentinized.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Singleton Formation|80614|Singleton Basalt Member|78992|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Norie Group|74802|||Mesoarchean|||inferred||Mesoarchean|||inferred|||||No|71809||||||Yilgarn Craton, Youanmi Terrane. Probably replaces Singleton Basalt Member, also established in Ninghan sheet area and used 2015, 2016.|Metamorphosed basalt and komatiitic basalt.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
Sir Frederick Conglomerate|16942|||||Yes|Formation, beds|Formal|Other new published name|Defined|Pertaoorrta Group|15091|||Early Cambrian||||deposition|Ediacaran||||||||No|48842|48842||||||Sequence of pebble, cobble and boulder conglomerate with kaolinitic sandstone matrix and thin beds and lenses of sandstone and pebbly sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Sir Samuel Chert|83718|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|70275||||||Agnew-Wiluna Belt, Yilgarn Craton. Thrusting produced duplication in the Sir Samuel West and East domains; subsequently folded into anticlines. Forms a prominent ridge and a magnetic high.|Pyrrhotite-rich chert.|non-carbonate chemical or biochemical sedimentary rock|||N||05-FEB-23
Sirdar Formation|22851|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||||||deposition|||||||||No|61217||MacGeehan P.G.|24-JAN-89|||Not known if published by originator? PP 3/7/06.|Metamorphosed banded iron formation.|non-carbonate chemical or biochemical sedimentary rock|igneous volcanic rock||N||17-JAN-23
Sisters Supersuite|68741|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Mesoarchean|2920|||intrusion|Mesoarchean|2955|||||||No|61253||Van Kranendonk, M.|13-APR-05|||For the MOUNT WOHLER map sheet; nearest town is Roebourne.  In the Pilbara Craton. Includes four geochemically distinct suites: Indee, Langenbeck, Portree and Radley Suites.|Granitic and ultramafic to mafic intrusive rocks; metamorphosed. Dominantly leucocratic, high K monzogranites.|acid intrusive rock|metamorphosed igneous rock||Y||17-JAN-23
Six Mile Supersuite|68673|||||Yes|Supergroup|Reserved|Reserved|Reserved||||||||||||||||||No|||Van Kranendonk, M.  (GSWA)|04-APR-05|||To be used on the Warrawagin mapsheet; nearest town is Marble Bar.|||||Y||17-JAN-23
Six Mile Well Ultramafic Complex|73990|||||Yes|Group, Suite|Formal|Other new published name|Briefly described||||||||||||||||||No|63712|||||||Characterised by lens/pod accumulations of olivine accumulate.|ultramafic intrusive rock|||N||17-JAN-23
Sixty-Six Hill Member|73849|||||Yes|Member, phase|Formal|Other new published name|Described|Lizard Hills Formation|38689|||Archean||||deposition|Archean||||||||No|24391||||||See also misspelled Sixty-six Hills Member"".|Black-white chert, felsic tuff and coarse quartzite with well-rounded pebble size conglomerate.|sedimentary rock|igneous volcanic rock||N||17-JAN-23
Skates Hills Formation|28155|||||Yes|Formation, beds|Formal|Other new published name|Defined|Sunbeam Group|33753|||Cryogenian|||inferred, biostratigraphic correlation|deposition|Cryogenian|||||||WA|No|33849|40089|||||Defined in 1985 with age equivalent to Mesoproterozoic. Age updated 1995. Formerly included in the Savory Group which was partly replaced by the Sunbeam Group. See also the misspelt Skates Hill Formation - correct place name in WA is Skates Hills.|Stromatolitic dolomite, sandstone, siltstone, chert, and basal conglomerate; evaporite pseudomorphs.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||03-APR-23
Skerring kimberlite|16967|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|41158|||||||||||Y||17-JAN-23
Skewthorpe Formation|16968|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carlton Group|3629|||Late Cambrian||||deposition|Middle Cambrian|||||||WA|No|45012|41864|||||See also Lexicon. D52-10,14.|Sandstone, siltstone, dolomitic sandstone and oolitic dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Skinny Bore Granite|80133|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|69583|||||||Low-Ca granite|acid intrusive rock|||Y||17-JAN-23
Skirmish Hill Formation|76870|Skirmish Hill volcanic association|70173|||Yes|Formation, beds|Formal|Variation of published name|Described|Kunmarnara Group|74752|||Mesoproterozoic||||eruption|Mesoproterozoic|1078|||||||No|67372||||||Bentley Basin. Age ~1078 Ma. Unit in Kunmarnara Group.|Andesite and dacite, amphibole-bearing and locally amygdaloidal; rhyodacite and dacite with plagioclase phenocrysts; medium-grained granophyre, euhedral perthite and microcline crystals  surrounded by quartz and K-feldspar micrographic intergrowths.|acid volcanic rock|intermediate volcanic rock||N||17-JAN-23
Slatey Creek Granite|26900|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Grimwade Suite|40137|Statherian|1700|62|isotopic, Rb/Sr|intrusion|Statherian|1796|5|isotopic, U/Pb-Pb/Pb ion probe||60||WA|Yes|46788|45140|Blake D.H.|08-NOV-74|WA SNSC|06-JAN-75|Tanami Province. Previously of the Frederick Suite. Appears to have been moved into the Grimwade Suite in 2013, NTGS Special publicaiton 5, p11:12.|Porphyritic and non-porphyritic, mainly medium to fine grained, muscovite, biotite-muscovite, and biotite monzogranite; minor biotite granodiorite. Some pegmatite and aplite veins.|acid intrusive rock|||Y||17-JAN-23
Sleeper Camp Formation|81539|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Calymmian|1478|4|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Calymmian|1538|17|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|70802|||||||garnet-bearing schist with granitic veins|metasedimentary siliciclastic rock|||U||17-JAN-23
Smoke Hill Volcanics|17012|Tollu Volcanics|18270|||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Tollu Group|18269|||Stenian|1026|26|isotopic, U/Pb|eruption|Stenian|1073|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|30386||||||Of Bentley Basin (GSWA, 2011). See also Smoke Hill Felsic Volcanics.|Felsic lavas, including rhyolite and plagioclase-phyric dacite; lesser trachyte. Local layers or lenses of volcaniclastic breccias, conglomerates, sandstones and tuffaceous siltstones.|acid volcanic rock|sedimentary rock||N||17-JAN-23
Snake Gully Tonalite|74817|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Neoarchean|2751|6||intrusion|Neoarchean|2751|6||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Tonalite and quartz diorite; metamorphosed|acid intrusive rock|||Y||17-JAN-23
Snell Well Granodiorite|68499|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3012|3||intrusion|Archean|3012|3||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Also for use on DAMPIER map sheet.  Age:3012+/-3 AND 3013+/8Ma. Informally referred to as "Costean granodiorite" by Smith (2003).  Intrudes Ruth Well Formation.|Foliated granodiorite; metamorphosed|metamorphosed acid igneous rock|||Y||06-JUN-23
Snowys Dam Formation|77837|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Ectasian|1304|7||minimum depositional age|Ectasian|1332|21|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|69595||Spaggiari, C. (GSWA)|01-APR-13|||Norseman  1:250k sheet area, SI51-02. Garnet-rich pelitic and semipelitic gneisses, psammitic gneiss, calc-silicate rocks, and locally iron-rich metasedimentary rocks. All are interlayered with mafic amphibolite or granulite. To be published: Geological Survey of WA Report, to be published in 2013.|Sedimentary gneiss; psammitic, semipelitic, and locally calc-silicate and iron-rich layers; commonly interlayered with metagabbro, or mafic and felsic granulite.|metasedimentary siliciclastic rock|metamorphosed basic igneous rock||N||27-APR-23
Soanesville Group|70124|Soanesville Subgroup|17068|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Mesoarchean|3190||isotopic|deposition|Paleoarchean|3235||||3500|6000||No|63441|63441|Kranendonk, M. (GSWA)|03-MAR-06|Hocking, R.|03-MAY-06|Supersedes Soanesville Subgroup, retaining all its units. Nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Type area is on NORTH SHAW 1:100 000 sheet, centred at 73100E, 7657000N. Age:c.3.20Ga. Removed from Pilbara Supergroup (Hickman 2011, in GSWA Annual Review 2009-10). Soanesville Basin.|Conglomerate, arkosic sandstone, greywacke, lithic arenite, banded iron formation, shale, silicified shale (chert), sandstone, siltstone, quartzite, schist, basalt, mudstone, dacite, tuff, quartz-sericite schist; mafic schist.|sedimentary rock|igneous volcanic rock||N||17-JAN-23
Soanesville Group - high-Mg basalt|74251|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Soanesville Group|70124|||Mesoarchean||||eruption|Mesoarchean||||||||No|||||||Unnamed unit within the Soanesville Group - for use in the 1:1M scale Surface Geology of Australia|High-Mg basalt, chlorite schist, tremolite schist|basic volcanic rock|||N||17-JAN-23
Sokoman Iron Formation|17079|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|41997|||||||||||N||17-JAN-23
Songvang Formation|77938|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean|2711||inferred|deposition|Mesoarchean|2820||inferred|||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Songvang Mine. Map Sheet: SH51-1,  Wildara 3041. Basalt; fine-grained and pyroxene-spinifex texture; includes minor komatiite; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Basalt; fine-grained and pyroxene-spinifex texture; includes minor komatiite; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
Sophie Downs Granite|27569|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Sophie Downs Suite|41468|Orosirian||||magmatic crystallisation|Orosirian|1912|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|44325||||||Fully described. Kimberley Province. Changed to Sophie Downs Granophyre Member for some years, but original name now revived [advice from GSWA Dec 2013]. Intruded by Woodward Dolerite?(from  Sophie Downs Granophyre Member).|Variably foliated leucocratic and granophyric metamonzogranite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Sophie Downs Suite|41468|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Orosirian|1904||||Orosirian|1913|5|isotopic|||||No|50437||||||Geological Province: Kimberley Region. This unit in current use [advice from GSWA Dec 2013].|Leucocratic metagranite, metarhyolite, metabasalt and amphibolite, and minor metasedimentary rock|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y|A-type|17-JAN-23
Sorby Dolomite Member|23980|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Tournaisian||||deposition|Tournaisian|||||||WA|No|40792|40792|J.Lee|23-SEP-85|||||carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
South Caroline Clay|34477|South Caroline Clay Formation|30330|||Yes|Formation, beds|Formal|Variation of reserved name|Fully described|Salt River Group|30327|||Pliocene||||deposition|Miocene|||inferred, underlying unit|||6||No|22769||||||Reserved as South Caroline Clay Formation.|Clays ranging from ferruginous greyish clay to gravelly green clay with slight brown striations; lenses formed in some areas of greenish sand, medium to coarse, subrounded to rounded grains.|regolith|||N||17-JAN-23
South Kalgurli-Perseverance bed|17115|||||Yes|Bed|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|33513||||||Probably not intended as formal name[CEBOCT97]|||||N||17-JAN-23
South Mallina Basalt Member|70136|||||Yes|Member, phase|Formal|Resvd name published|Defined|Mallina Formation|29271|||Archean||||eruption|Archean|2970|||||||No|63441|63441|Van Kranendonk, M. (GSWA)|13-MAR-06|Hocking, R.|03-MAY-06|New name for silicic basalts in Mallina Basin, first described as "south Mallina basalt" (Smithies et al, 2004) - for inclusion in new Bookingarra Formation (Croydon Gp, De Group) - added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). In 2016 Hickman states in GSWA Report 160 p59 that South Mallina Basalt Member, in the central part of the Mallina Basin, is present mainly within the Mallina Formation, although its stratigraphic position is not firmly established..|Siliceous high-Mg basalt.; typically variolitic, commonly pyroxene spinifex textured, and pillowed.|basic volcanic rock|||N||17-JAN-23
South Perth Sequence 1|80798|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Described|South Perth Supersequence|80792|||Valanginian|||inferred, overlying unit||Valanginian|||inferred|||||Yes|71958||||||Using a sequence stratigraphic framework, this unit the oldest of three 3rd order sequences that form the South Perth Supersequence. To be published: GA record in 2014 [actually GA Record 2015/09]. Offshore, not penetrated by any wells [recognised in seismic interpretations].|Unknown.||||N||17-JAN-23
South Perth Sequence 2|80799|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Defined|South Perth Supersequence|80792|||Hauterivian|||biozone||Valanginian|||biozone||0|827||Yes|71958||||||Using a sequence stratigraphic framework, this unit the second of three 3rd order sequences that form the South Perth Supersequence. This sequence comprises the Gage Sandstone, South Perth Shale and at places parts of the Leederville Formation. To be published: GA record in 2014 [actually GA Record 2015/09].|Fine-grained to granular feldspathic sandstone interbedded with dark grey/black micaceous mudstone and siltstone; overlain by grey-black argillaceous, micaceous mudstone interbedded with carbonaceous, argillaceous, micaceous siltstone to sst.|siliciclastic sedimentary rock|||N||17-JAN-23
South Perth Sequence 3|80800|||||Yes|Group, Suite|Sequence stratigraphy|Sequence strat published|Defined|South Perth Supersequence|80792|||Hauterivian|||biozone||Hauterivian|||biozone||20|616||Yes|71958||||||Using a sequence stratigraphic framework, this unit the [youngest] of three 3rd order sequences that form the South Perth Supersequence.|Dominantly coarse grained quartzose sandstone with trace pyrite, mica and glauconite interbedded by thin carbonaceous material with rare coal and siltstone in Nth. Predominantly mudstone with trace glauconite and pyrite in Sth.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
South Perth Shale|17128|South Perth Formation|17126|||Yes|Formation, beds|Formal|Variation of published name|Defined|Warnbro Group|19470|||Hauterivian||||deposition|Valanginian||||||898|WA|No|34134|36293|||||Best known in subsurface in Perth metropolitan area onshore and the Vlaming Sub-basin offshore. See also South Perth Formation and other variations. Formerly included Gage Sandstone Member, which is raised to Formation status in 1995.|Predominantly shale, glauconitic in part, with minor sandstone and siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
South Perth Supersequence|80792|South Perth Sequence|78048|||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Defined|Warnbro Megasequence|80795|||Hauterivian|||biozone||Valanginian|||biozone||0|1326.8||Yes|71958||Lech, M. (GA)|10-AUG-13|||Of the Warnbro Megasequence. It largely coincides with the Gage Sandstone and South Perth Shale, however new biostratigraphy has changed the upper boundary of the sequence. To be published: GA record in 2014 [actually GA Record 2015/09]. Ages based on palynology.|Fine-grained - very coarse feldspathic sandstone w interbedded mudstone and siltstone overlain by black argillaceous, micaceous mudstone. Grades upwards to siltstone with minor sandstone interbeds. Minor pyritic and glauconitic material.|siliciclastic sedimentary rock|||N||17-JAN-23
South West Terrane - calc-silicate gneiss 83805|83805|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||inferred||Mesoarchean|3100||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'South West Terrane greenstones', A-mkqx-YSW. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Calc-silicate gneiss; diopside-epidote+/-garnet+/-hornblende+/-plagioclase+/-microline assemblages.|foliated metamorphic rock|||N||15-SEP-23
South West Terrane - chemical metasedimentary rocks #84005|84005|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mi-YSW, A-xmi-mwo-YSW, A-cc-YSW.|Metamorphosed banded iron-formation; quartz–hypersthene–garnet–magnetite granulite (derived from banded iron-formation) and mafic granulite; chert; may include metabasalt and ultramafic rock||||N||15-SEP-23
South West Terrane - felsic volcanic and pyroclastic rocks 83809|83809|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||inferred||Mesoarchean|3100||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'South West Terrane greenstones', A-mf-YSW. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metamorphosed felsic volcanic and pyroclastic rocks|metamorphosed acid igneous rock|||N||15-SEP-23
South West Terrane - felsic volcanic and pyroclastics #84007|84007|South West Terrane - felsic volcanic and pyroclastic rocks 83809|83809|South West Terrane - felsic volcanic and pyroclastic rocks 83809|83809|Yes|Group, Suite|Obsolete|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-mf-YSW. Compare with 'xyz unit name' used in GA  2012 surface geology.|Metamorphosed felsic volcanic and pyroclastic rock.||||N||15-SEP-23
South West Terrane - granulite and migmatite #84002|84002|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-xmno-mni-YSW.|Granulite and migmatite.||||Y||15-SEP-23
South West Terrane - mafic volcanic rocks #84009|84009|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mb-YSW, A-xmb-mu-YSW, A-b-YSW.|Metamafic volcanic rock; metabasalt; minor bands of metasedimentary rock, mafic and ultramafic intrusives; metafelsite; talc–chlorite(–carbonate) and tremolite–chlorite schist; local garnet porphyroblasts.||||N||15-SEP-23
South West Terrane - metabasite #84008|84008|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mw-YSW, A-mwa-YSW, A-mwo-YSW, A-xmwo-mro-YSW.|Metamorphosed mafic rock; amphibolite; mafic granulite; may include ultramafic rock and felsic granulite.||||N||15-SEP-23
South West Terrane - siliciclastic metasedimentary rocks #84003|84003|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||||Mesoarchean|3100|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-md-YSW, A-xmdsr-mwo-YSW, A-mdnf-YSW, A-mlsm-YSW, A-mtq-YSW.|Pelite, siltstone, and greywacke; minor beds of felsic pyroclastic rocks (includes Hotham Formation); Cordierite schist and paragneiss; Quartz–feldspar–biotite gneiss; predominantly metasedimentary in origin; Quartz–mica schist; Quartzite.||||N||15-SEP-23
South West Terrane cataclasite 83804|83804|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||inferred||Mesoarchean|3100||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'South West Terrane cataclasite', AP_-myyf-YSW.  Derived from Archean and Proterozoic deformation of Archean rocks; adjacent to Darling Fault. Also surface/subsurface unit interpreted by Songfa Liu for the Neoproterozoic and Pre-Neoproterozoic solid geology of Australia.|Mylonite and gneiss|fault or shear rock|foliated metamorphic rock||U||27-APR-23
South West Terrane greenstones - gabbro, peridotite 83810|83810|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2650||inferred||Mesoarchean|3100||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'South West Terrane greenstones', A-xmo-ma-YSW. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Metagabbro and metaperidotite in sills and layered intrusions; with interlayers of pyroxenite and rare chromitite; locally abundant sulfide mineralization; locally foliated.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||07-SEP-23
South Whundo Monzogranite|68645|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3013|4||intrusion|Archean|3013|4||||||No|64174|63441|Hickman, A.  (GSWA)|31-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Intrudes Nallana Formation. Intrudes Whundo Group of volcanics, but is 110M years younger.  No geological relationship with North Whundo Intrusion (mafic-ultramafic) and outcrops in a different area some 15km away and is 90M years older. All 3 units belong to separate geol. events.|Massive, medium- to coarse-grained monzogranite; metamorphosed|acid intrusive rock|||Y||17-JAN-23
Southern Cross Supergroup|83577|||||Yes|Supergroup|Reserved|Reserved|Reserved|||||Mesoarchean|2920|||magmatic crystallisation|Mesoarchean|3018|||magmatic crystallisation||||No|||Ivanic, T. (GSWA)|15-SEP-22|||To include: Gossan Hill Formation, Madoonga Formation, Annabelle Volcanics, Illara Formation, Honman Formation, Mount Gibson Formation, Wongan Hills Formation.|||||N||27-APR-23
Southern Hills Suite|79200|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Recherche Supersuite|78595|Ectasian|1287||inferred, geochemical correlation||Ectasian|1320||inferred, geochemical correlation|||||No|70182||Spaggiari, C. (GSWA)|23-JUN-15|||Map Sheet=Norseman SI51-2. Nearest Town=Norseman. Brief description=Syenogranite gneiss, typically interlayered with metagabbro.  Published in 2015 in Geological Survey of Western Australia Report 150, p33 etc.|Syenogranite gneiss, typically interlayered with metagabbro.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Spargoville Formation|17137|||||Yes|Formation, beds|Formal|Variation of published name|Described|Black Flag Group|28372|||Archean|2686|3||deposition|Archean|2698|4||||||No|42221|||||||Fine-grained felsic turbidites metamorphosed to schists, interbedded with tuffs.|siliciclastic sedimentary rock|||N||17-JAN-23
Sparke Conglomerate|17139|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Famennian||||deposition|Givetian||||||||No|44404|44403|||||Defined 1958. Name possibly dropped ?1966 because 'unit' probably a mixture of Devonian & ?Permian conglomerate, but republished on 1998 Mt Ramsay map by GSWA.|Boulder, with lesser pebble, conglomerate, coarse- to fine-grained sandstone, with minor siltstone; alluvial-cone, fan-delta and submarine-fan deposits. Poorly exposed.|siliciclastic sedimentary rock|||N||17-JAN-23
Spear Hill Monzogranite|37148|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Archean|2851|2|isotopic, U/Pb|intrusion|Archean|2851|2|isotopic, U/Pb|||||No|61252||||||Variation of Spear Hill Adamellite (Defined)|K-feldspar-phyric biotite monzogranite|acid intrusive rock|||Y||17-JAN-23
Spearhole Formation|26904|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Sunbeam Group|33753|||Cryogenian||||deposition|Cryogenian||||||1000||No|42708||||||Savory Basin.  For location of type area see Bullen Explan Notes (1995).|Cross bedded poorly sorted granule and pebble sandstone and relatively well sorted pebble to boulder conglomerate common near base, fine sandstone and sandy micaceous siltstone near top.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Spearwood Sands|17146|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|37001|||||||||||N||17-JAN-23
Speedway Andesite|78611|||||Yes|Formation, beds|Reserved|Reserved|Briefly described|||||||||eruption|||||||||No|70153||Hall, C. (GSWA)|11-DEC-13|||Lake Lefroy map sheet area. Andesite; pale grey coherent to brecciated; microporphyritic; ubiquitous fine biotite- hornblende mafic inclusions; metamorphosed. To be published: East Yilgarn 2013-14 update. Digital package Geological Survey of Western Australia.||intermediate volcanic rock|||N||17-JAN-23
Speewah Basin felsic extrusive unit 80969|80969|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia.  See also stratno 80970 subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area, based on this one.|Porphyritic dacite; fine-grained, massive or flow banded.|acid volcanic rock|||N||17-JAN-23
Speewah Group|17150|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Statherian|1762|15|isotopic, Rb/Sr|deposition|Orosirian|1834|3|isotopic, U/Pb-Pb/Pb ion probe||1500|1700||No|44317||||||Previously part of Kimberley Basin, now redefined as Speewah Basin. Also dated at 1835 Ma. Of the Halls Creek Orogen.|Lithic and feldspathic sandstone, quartz sandstone, chloritic and micaceous siltstone, shale; minor rhyolitic ashstone and tuff; metamorphosed.|siliciclastic sedimentary rock|igneous volcanic rock||N||21-SEP-23
Spencer Sandstone|17153|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Auvergne Group|787|||Cryogenian||||deposition|Cryogenian|||||140|170|NT|No|32310|48938|||||Different unit from Spencer Creek Group.|Basal thinly-bedded, fine- or medium-grained quartz sandstone; silty sandstone; dolomitic sandstone typical of upper part. Includes halite casts and pseudomorphs.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Spielers Volcanics|17163|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Paleozoic||||eruption|Neoproterozoic||||||||No|30525|||||||Quartz-feldspar porphyry, probably ash-flow tuff; foliated.||||N||17-JAN-23
Splinter Gneiss|81034|||||Yes|Formation, beds|Informal|Other new published name|Described|||Recherche Supersuite|78595|Mesoproterozoic|||inferred||Mesoproterozoic|1276|6|isotopic|magmatic crystallisation||||No|72034||||||Albany-Fraser Orogen. Of Recherche Supersuite.|Gabbro gneiss, locally garnet-rich, and layered intermediate gneiss; contains intrusions of Esperance Supersuite monzogranite and pegmatite.|metamorphosed basic igneous rock|||Y||17-JAN-23
Split Rock Supersuite|68672|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Mesoarchean|2836|6|inferred|intrusion|Mesoarchean|2861|4|inferred|||||No|61253||Van Kranendonk, M.  (GSWA)|04-APR-05|||For SPLIT ROCK mapsheet; nearest town is Marble Bar. Includes 12 named monzogranites and Myanna Leucogranite. Split Rock Formation now an obsolete name (per M. Van Kranendonk, 4/4/02). Said to be intruded by Cooglegong Monzogranite. East Pilbara/Kuranna Terranes.See also misspelt Split Rock Suite.|Granitic rocks including monzogranite, syenogranite, and pegmatite. Highly fractionated, Sn-Ta-Li bearing monzogranites.|acid intrusive rock|||Y||17-JAN-23
Spring Camp Formation|74795|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount James Subgroup|75712|||Statherian|1677|||deposition|Statherian|1782|5||||||No|68521||Sheppard, S. (GSWA)|21-OCT-08|||For use on map sheet PINK HILLS; nearest town is Gascoyne Junction. To be published: MOUNT PHILLIPS, MOUNT AUGUSTUS, YINNETHARRA and PINK HILLS 1:100K map sheets.  Named for Spring Camp Creek in the area.|Quartzite and quartz-muscovite schist; foliated; quartz metasandstone, feldspathic metasandstone, quartz-lithic metasandstone; locally ripple-marked and cross-bedded.|metasedimentary siliciclastic rock|||N||17-JAN-23
Spring Creek intrusion|31902|||||Yes|Formation, beds|Informal|Variation of published name|Described|||Sally Malay Suite|78623|Orosirian||||intrusion|Orosirian||||||||No|43863||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Informal unit of Sally Malay Suite [advice from GSWA Dec 2013]|Layered mafic-ultramafic intrusion; gabbro, leucogabbro, leucogabbronorite, gabbronorite, anorthosite, minor troctolite; some olivine and/or chromitite-bearing; in rhythmic cycles; peridotite and troctolite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Spring Well Complex|37894|||||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Neoarchean|2690|6|isotopic, U/Pb-Pb/Pb ion probe||Neoarchean|2694|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|23930||||||See also Spring Well Volcanic complex. Ages from two different rhyolite samples.|Calc-alkaline basaltic andesite to andesite, and dacite-rhyolite lavas, associated breccias; abundant microdiorite sills and dykes; subordinate volcanogenic conglomerate, sandstone and shale; high Sr/Y andesite and lamprophyre dykes.|intermediate volcanic rock|acid volcanic rock||N|I-type|17-JAN-23
Spring Well Formation|78759|Spring Well Complex|37894|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|Gindalbie Group|7247|||||||deposition|||||||||No|||Patison, N. (GSWA)|26-FEB-14|||This name reserved to replace existing Spring Well Complex. Map Sheet SG51-13, 3142, DARLOT.  Nearest Town = Leonora?. Brief description = Rhyolitic to andestic volcanic and volcaniclastic rocks; metamorphosed. To be published: GSWA Explanatory Notes Database.|||||N||17-JAN-23
Springhill Limestone Member|73570|Springhill Member|29481|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Kooallup Limestone|73564|||Upper Pleistocene||||deposition|Upper Pleistocene||||||||No|63454||||||Originally reserved as Springhill Member (Semeniuk 1995). Defined as Springhill Limestone Member by Semeniuk (1995). Not related to the 2-worded Palaeozoic Spring Hill Limestone in Bonaparte Basin (Druce 1963).|Calcilutite and shelly calcilutite.|carbonate sedimentary rock|||N||17-JAN-23
Springvale Suite|78622|Springvale intrusion|31796|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|69165||||||Includes 3 unnamed units.These intrusions are coeval with granite and unlayered gabbro of the 1864-1852 Ma Paperbark Supersuite [advice from GSWA Dec 2013].|Leucogabbro, anorthosite, and minor troctolite; olivine gabbro and chromite layers; rhythmic cycles.|basic intrusive rock|||Y||17-JAN-23
Springvale intrusion|31796|Springvale Complex|17226|||Yes|Formation, beds|Informal|Variation of published name|Described|||Springvale Suite|78622|Orosirian||||intrusion|Orosirian|1857|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|43854||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Informal unit of Springvale Suite [advice from GSWA Dec 2013]|Layered mafic-ultramafic intrusion; gabbro, leucogabbro, leucogabbronorite, gabbronorite, anorthosite, minor troctolite; some olivine and/or chromitite-bearing; in rhythmic cycles; peridotite and troctolite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Square Top Microgranite|17230|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|42815|||||||Metamorphosed altered quartz-phyric microgranite and quartz chloritoid kyanite rock|acid intrusive rock|metasomatic rock||Y||17-JAN-23
Stafford Suite|81268|||||Yes|Group, Suite|Informal|Other new published name|Mentioned|||||Statherian|1795|||intrusion|Orosirian|1815|||intrusion||||No|70554||||||?Possibly an igneous province that includes the Stafford Granite as well as other felsic and mafic rocks.|||||Y||17-JAN-23
Stag Arrow Formation|23987|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|43056|41669|I.R.Williams|31-JAN-85|||Balfour Downs 1:250 000 sheet. Contains 'string of beads' macrofossils.|Interbedded sandstone, siltstone, shale, conglomerate, dolomite, chert|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Stansmore carbonatite|83843|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Proterozoic|||||Proterozoic|||inferred|||||No|||||||From Lyacon Resources Ltd's Stansmore carbonatite project in the western Arunta, Nov 2022. https://www.listcorp.com/asx/lyn/lycaon-resources-limited/news/stansmore-carbonatite-nb-ree-project-presentation-2801156.html|Shallow magnetic target, carbonatite likely.|exotic composition igneous rock|||Y||27-APR-23
Star Trek Dolerite|81988|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Archean|||inferred||Archean|||inferred|||||No|72814||||||East of Zuleika Shear, Ora Banda Domain. Mineralised.Shown as intruding White Flag Formation.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Stark Bay Formation|26148|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Miocene||||deposition|Miocene|||||||WA|No|31562|36293||||||Calcarenite, dolomite and chert.|carbonate sedimentary rock|||N||17-JAN-23
Steeple Peak Sandstone|23991|||||Yes|Formation, beds|Formal|Other new published name|Defined|Cockatoo Group|4273|||Frasnian||||deposition|Frasnian|||||||WA|No|40993|40993|G.M.Beere, A.J.Mory|21-OCT-83|||||siliciclastic sedimentary rock|||N||17-JAN-23
Steere Formation|23992|||||Yes|Formation, beds|Formal|Resvd name published|Described|Mount Barren Group|27840|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|42424||R.Thom|12-SEP-80|||Use on Bremer Bay & Newdegate sheets.|Thin basal conglomerate overlain by pebbly sandstone and dolomitic limestone. Discontinuous. Dolomite; metamorphosed, massive to finely bedded; locally ?stromatolitic.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Stein Formation|26149|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kuniandi Group|25981|||Ediacaran||||deposition|Ediacaran|||||||WA|No|44397|48927|||||In the Louisa Basin. Age: c.610Ma.|Flaggy thinly bedded poorly sorted purple coarse greywacke with a ferruginous matrix and common graded bedding, cross bedding, slumps and ripples|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Stennet granodiorite|83116|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|72485|||||||||||Y||17-JAN-23
Steptoe Formation|17325|Steptoe beds""|40113|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Buldya Group|33826|||Cryogenian||||deposition|Cryogenian||||||||No|41751|||||||Contains stromatolites. Sandstone, dolomite and siltstone, some claystone and shale.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Stirling Range Formation|17337|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Orosirian|1800|14|isotopic, Pb/Pb|deposition|Orosirian|2016|6|isotopic, U/Pb-Pb/Pb ion probe|||1600||No|38764||||||Age is controversial. The succession remains poorly constrained. Diagenetic xenotime minimum age of deposition around 1800 Ma; maximum age of 2016 Ma from detrital zircons.|Lower and upper units of quartzite; a middle unit of quartzite, slate and phyllite.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock||N||17-JAN-23
Stirling Sandstone|17338|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Limbunya Group|10414|||Statherian|1653||inferred, overlying unit|deposition|Statherian|1830|13|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||120|NT|No|28255|48943|||||Type section 120m thick. Correlated with Masterton Sandstone. Birindudu Basin. Max depositional age from Stirling Sandstone, but note that max depositional ages from various parts of underlying Birrindudu Group are younger (a foliated granite underlying basal conglomerate is 1794+/-4 Ma, sublithic sst from Coomarie Range gives Max dep age: 1812+/-8 Ma).|Quartz arenite, dolomitic sandstone, conglomerate|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Stockton Group|26911|Stockton Formation|17346|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Sakmarian|||||Gzhelian||||||||No|42711||||||Includes former Stockton Formation (renamed Shotts Formation), and Mosswood Formation and Moorhead Formation.|Diamictite overlain by claystone; lesser sandstone and siltstone.|siliciclastic sedimentary rock|||N||23-MAR-23
Stockyard Basalt Member|74807|Stockyard Basalt|23994|||Yes|Member, phase|Formal|Resvd name published|Described|Meekatharra Formation|74805|||Neoarchean|2761|||eruption|Neoarchean|2792|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Age: c.2790Ma. Originally reserved as Stockyard Basalt (Watkins K.P., A.H.Hickman, R.Davy, 1985) and published by Watkins and Hickman (1990). Geological province: Murchison Domain.|Basalt and komatiitic basalt, minor felsic tuff; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
Stockyard Gully Member|78697|||||Yes|Member, phase|Formal|Resvd name published|Defined|Tamala Limestone|17719|||Pleistocene|.325|||deposition|Pleistocene|.325||||||WA|Yes|69788||Lipar, M. (La Trobe University)|17-FEB-14|||Lithological Descriptor = aeolian calcarenite. Map Sheet = 1937. Nearest Town = Eneabba. Brief description = Fine to coarse grained well sorted aeolianite, yellow coloured, poorly to well cemented, and with distinctive cross-bedding. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 9  (325 ka). To be published = This year (2014) in Australian Journal of Earth Sciences.|Consists of an eolian calcarenite/calcrete-microbialite/paleosol cycle.|carbonate sedimentary rock|regolith||N||02-JUN-23
Stokes Siltstone|17363|Stokes Formation|17361|||Yes|Formation, beds|Formal|Variation of published name|Defined|Larapinta Group|10184|||Upper Ordovician||||deposition|Darriwilian||||||650|NT|No|44495|45041|||||Previously combined with Carmichael Sandstone as "Stokes Formation" (Prichard and Quinlan, 1962).|A succession of interbedded shale and siltstone, with thin beds of silty-sandy limestone containing abundant fossil debris; red shale and lesser grey-green siltstone; and interbedded red to green shale, grey-green siltstone and fine sandstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Stone Yard Granophyre|68505|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Orpheus Supersuite|68743|Archean|3014|6|||Archean|3014|6||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Intrudes Cleaverville Formation.|Quartz-rich granophyre and quartz- and feldspar-porphyritic dacite.|acid igneous rock|||Y||17-JAN-23
Stonewall Sandstone|17367|||||Yes|Formation, beds|Formal|Other new published name|Described|Carr Boyd Group|3663|||Tonian||||deposition|Stenian||||||||No|44363|||||||Subfriable medium- to coarse-grained quartz sandstone, subordinate argillaceous and feldspathic sandstone, granule sandstone, red shale.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Stoney Creek Conglomerate|25494|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||deposition|||||||||No|24061|||||||||||N||17-JAN-23
Stony Creek Conglomerate|27574|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Frasnian||||deposition|Frasnian|||||200|550||No|39796|44403|||||See also Lexicon.|Massive boulder fanglomerate at the base overlain by mixed fluviatile to deltaic conglomerate and sandstone; clasts are rounded and mostly granitoid with lesser quartzite, vein quartz and foliated felsic volcanics|siliciclastic sedimentary rock|||N||17-JAN-23
Stony Hill Dolerite|79518|Stony Hill dolerite|17377|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||Great Boulder Suite|77865|Neoarchean||||intrusion|Neoarchean|2680||inferred|||||No|70153|||||||Dolerite to basal pyroxenite; differentiated sill; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Stottid Formation|17389|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|37735|||||||||||N||17-JAN-23
Stragglers Member|40566|Straggler Member|31472|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Carnac Formation|40564|||Lower Cretaceous||||deposition|Lower Cretaceous||||||191||No|50108||||||Named after Straggler Rocks north of Carnac Island.  Used with incorrect spelling by Crostella and Backhouse (2000).  Briefly described.|||||N||17-JAN-23
Strawberry Rocks Monzogranite|76820|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Archean||||intrusion|Archean|2680|||||||No|70204||Doublier, M. (GSWA)|29-MAR-12|||Southern Cross area. Map sheet area SH50-16, 2735. Biotite monzogranite; fine to coarse grained; K-feldspar-phyric. To be published: GSWA 1:100,000 geological map.|Biotite monzogranite; fine to coarse grained; K-feldspar-phyric.|acid intrusive rock|||Y||17-JAN-23
Strelley Monzogranite|69696|Strelley Granite|17420|||Yes|Formation, beds|Formal|Variation of published name|Described|||Cleland Supersuite|68665|Paleoarchean|3238|3||intrusion|Paleoarchean|3239|5||||||No|61253||||||Age: 3.24Ga.  Not related to Strelley Pool Chert.  In the Pilbara Craton.|Hornblende--biotite monzogranite and granophyric monzogranite; local diorite, dolerite, and gabbro; metamorphosed.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Strelley Pool Formation|74062|Strelley Pool Chert|17422|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Pilbara Supergroup|15189|||Paleoarchean|3350||inferred, overlying unit|deposition|Paleoarchean|3426|10|isotopic, U/Pb||5|1000|WA|Yes|64621|64405|Hickman, A. (GSWA)|14-JAN-08|||Silicified carbonate sedimentary rocks contained within this formation have been mapped as chert in some areas. Strelley Pool Formation has been removed from the Kelly Group (RefID: 64405, 2008). It is now considered to be a regional marker separating Warrawoona and Kelly Groups, but part of neither.|Silicified carbonate rocks, sandstone, conglomerate, chert, and dolomite, stromatolitic; layered chert after dolomite; quartz-rich sandstone or arenite; felsic volcaniclastic conglomerate and sandstone, minor felsic schist; all metamorphosed.|non-carbonate chemical or biochemical sedimentary rock|igneous volcanic rock||N||28-JUN-23
Strutton Intrusion|32783|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3314|13|inferred, intrusive relationship|intrusion|Paleoarchean|3463|2|inferred, intrusive relationship|||500|WA|No|44229|60429|||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Metagabbro, minor metapyroxenite, serpentinite after peridotite|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Stubb Formation|17454|||||Yes|Formation, beds|Formal|Other new published name|Defined|Tijunna Group|35323|||Cryogenian||||deposition|Statherian|1618|13|isotopic, U/Pb-Pb/Pb ion probe|||210|NT|No|28255|70968|||||Originally included in the Auvergne Group, also previously included in the 'Victoria River Group' of Traves (1955) and in the 'Coolibah Formation' of Laing and Allen (1956). Unconformably overlain by Jasper Gorge Sandstone in the Victoria Basin.|Lower part is grey shale and red-brown micaceous siltstone; a succession of interbedded micaceous claystone, siltstone, minor mudstone and sandstone.|siliciclastic sedimentary rock|||N||07-SEP-23
Stubbins Formation|74592|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Tanami Group|17763|||Orosirian|1864|3|inferred, intrusive relationship|eruption|Orosirian|1864|4|isotopic, U/Pb-Pb/Pb ion probe||2000|3000||No|64277||||||Reserved as Stubbins. Stubbins Formation added to Tanami Group in 2015 (GSWA 1:100 000 maps, Kearney 4557 and Lewis 4657). Recent studies redefining the Tanami Group have amalgamated Stubbins Formation (WA), Dead Bullock Formation and Mount Charles Formation (NT) as Dead Bullock Formation, which is conformably overlain by Killi Killi Formation (Bagas et al. 2013 Fig.2) (RefID 69253, pp753 and 755), but this interpretation evidently not accepted by GSWA or NTGS, since they both continue to use Stubbins Formation.|Feldspathic wacke, sandstone, siltstone, mudstone, dolerite and gabbro sills; minor quartzite, banded chert, and basalt, metamorphosed.|siliciclastic sedimentary rock|basic intrusive rock||N||17-JAN-23
Stubbins Formation - metadolerite 80981|80981|||||Yes|Member, phase|Unnamed|Unnamed published|Described|Stubbins Formation|74592|||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|72034||||||In refID 72034. (GSWA (2016). 1:500 000 Interpreted Bedrock Geology of Western Australia, as an unnamed member of the Stubbins Formation. Granites-Tanami Orogen.  Also Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Metamorphosed dolerite sill; minor interlayered, metamorphosed feldspathic wacke, sandstone, siltstone, and mudstone|metamorphosed basic igneous rock|siliciclastic sedimentary rock||Y||17-JAN-23
Subchamber-D intrusion|81578|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Sally Malay Complex|81572|||Orosirian|||||Orosirian|1844|3|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|71873||||||Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Weakly-layered orthocumulate hornblende gabbronorites to hornblende olivine gabbronorites with abundant large hornblende oikocrysts.|basic intrusive rock|||Y||17-JAN-23
Sue Group|34554|Sue Coal Measures|17491|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Wuchiapingian|||||Sakmarian||||||||No|22820|||||||Coal-bearing siliciclastic rocks with sandstone dominating, and conglomerate/siltstone/mudstone/coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Sulphur Springs Group|32237|Sulphur Springs Subgroup|32222|||Yes|Group, Suite|Formal|Resvd name published|Fully described|Pilbara Supergroup|15189|||Paleoarchean|3235|3|isotopic, U/Pb-Pb/Pb ion probe|deposition|Paleoarchean|3270||||3000|4000||No|61266||Van Kranendonk M.J.|09-APR-98|||NORTH SHAW 1:100 000 sheet area 2755.  Age: ca. 3.24Ga. Now incorporates rocks of former Golden Cockatoo Formation (Van Kranendonk 2006). Formerly included Six Mile Creek Formation, which is now assigned to Euro Basalt. Formerly included Budjan Creek Formation, reassigned to the Soanesville Group in 2011.|Felsic to mafic volcanics and volcaniclastic rocks, chert, volcaniclastic sandstone, greywacke, shale, basalt, komatiitic basalt, amphibolite, mafic and ultramafic schist, banded iron formation, quartz-carbonate rock, siltstone.|sedimentary rock|igneous volcanic rock||N||28-JUN-23
Sulphur Springs Group - diorite sills|74300|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Sulphur Springs Group|32237|||Paleoarchean||||intrusion|Paleoarchean||||||||No||||||||Microdiorite and diorite|intermediate intrusive rock|||Y||17-JAN-23
Sulphur Springs Group - metadolerite|74268|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Sulphur Springs Group|32237|||Paleoarchean||||intrusion|Paleoarchean||||||||No||||||||Metadolerite|basic intrusive rock|||Y||17-JAN-23
Sunbeam Group|33753|Savory Group, lower""|69964|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Cryogenian|700||inferred|deposition|Tonian|830||biozone|||6000||No|22907|22907|Hocking R.|28-OCT-99|||Previously the older part of the Savory Group; parts of Sunbeam Group now replaced by Salvation Group. This group is lateral equivalent of of the oldest part of Officer Basin succession in the east - the Buldya Group.|Sandstone, siltstone, conglomerate, shale, mudstone, dolomite, stromatolitic dolomite and evaporitic rocks.|siliciclastic sedimentary rock|carbonate sedimentary rock|foreland|N||17-JAN-23
Sunbird Formation|74207|||||Yes|Formation, beds|Formal|Other new published name|Described|Weaber Group|19643|||Serpukhovian||||deposition|Visean|||||||WA|No|61542||||||Top unit of Weaber Group - forms part of revision by Gorter et al (2005) - detailed lithology included.|Massive limestone with minor sandstone.|carbonate sedimentary rock|||N||17-JAN-23
Supplejack Downs Sandstone|17542|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Birrindudu Group|1735|||Statherian||||deposition|Statherian|1800||||1300||NT|No|29809|45140|||||Not related to Mesoproterozoic Supplejack Dolostone Member, Skull Creek Formation, Bullita Group.|Sandstone: white to pale pink, sublithic arenite, quartz arenite, conglomerate, siltstone and shale, minor volcanogenic sandstone; fine to coarse grained, variably sorted.|siliciclastic sedimentary rock|||N||17-JAN-23
Surprise Orthogneiss|75922|||||Yes|Formation, beds|Formal|Other new published name|Described|||Minigwal Suite|75920|Neoarchean|||||Neoarchean|2765|||||||No|66113||||||May replace informal Surprise Rocks complex?|Migmatitic quartz-biotite orthogneiss.|metamorphosed igneous rock|||Y||17-JAN-23
Survey Creek Monzogranite|22925|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43863||Sheppard S.|01-JAN-95|||east Kimberley|Medium- to coarse-grained, porphyritic biotite-hornblende monzogranite.|acid intrusive rock|||Y||17-JAN-23
Swan Group|17573|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Valanginian|||||Callovian||||||||No|41733||||||Includes hydrocarbon source rocks.|||||N||17-JAN-23
Swan River Formation|69788|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Upper Pleistocene||||deposition|Upper Pleistocene||||||26||No|63745|63745|Gozzard, Bob (DOIR, WA)|02-NOV-05|||For Map sheet 2034; nearest town Perth.|Interbedded alluvial sands, silts and clays.||||N||17-JAN-23
Sweeney Mia Formation|24004|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Emsian||||deposition|Pragian||||||192|WA|No|40617|40617|R.M.Hocking, H.T.Moors|23-MAY-83|||Age: Defined as Late Silurian (1985) but shown as Early Devonian in 1994, 1998. Includes Frasnian fish scales. Previously of Kalbarri Group, but this term dropped in 1994.|Oxidised carbonate and siliciclastic rocks with minor evaporite beds, deposited in a reducing shallow-lagoonal to supratidal environment.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Sweetwaters Well Dolomite|81551|Sweetwaters Well Member|32536|||Yes|Formation, beds|Formal|Variation of published name|Described|Tooloo Group|79474|||Orosirian|1890||inferred, overlying unit|magmatic crystallisation|Orosirian||||magmatic crystallisation||||No|71484||||||upgrading of Member to Formation status. Datig os form tuff layers near top of unit.|Stromatolitic dolomite and limestone; lesser siltstone and sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Swift Monzogranite|30666|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43281||||||Different from Swift Formation (Swift Beds) of NT.||acid intrusive rock|||Y||17-JAN-23
Swincer Dolerite|75246|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2755|5||intrusion|Mesoarchean|2812|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|66116||Mark Pawley (GSWA)|10-JUN-09|||For use on map sheet SH 51-3; nearest town is Cosmo Newbury. Forms a series of medium-grained mafic sills within the basalts of the Mount Sefton greenstone belt.  The sills are laterally extensive and locally exhibit some internal differentiation with more leucocratic rocks preserved near tops of sills. Dated at 2812 +/-5 Ma (GSWA SHRIMP age). To be published in several GSWA publications in near future, including 1:100K maps and geochronological reports.|Dolerite; minor basalt or gabbro components; metamorphosed; gabbro; minor pyroxenite or quartz gabbro components; metamorphosed.|metamorphosed basic igneous rock|||Y||17-JAN-23
Sydney Heads Pass Conglomerate|17597|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Proterozoic||||deposition|Proterozoic||||||30||No|37460|||||||||||N||17-JAN-23
Syenite Camp Granodiorite|78625|||||Yes|Formation, beds|Reserved|Resvd name published|Briefly described|||Syenite Camp Suite|31897|Paleoproterozoic||||intrusion|Paleoproterozoic|1819|||||||No|72437||Hollis, J.|05-DEC-13|||Kimberley Region.|Medium- to coarse-grained, variably porphyritic biotite-hornblende metagranodiorite and metamonzogranite; massive and foliated|metamorphosed acid igneous rock|||Y||20-AUG-23
Syenite Camp Suite|31897|||||Yes|Group, Suite|Formal|STRATLEX Entry|Described|||Sally Downs Supersuite|31785|Orosirian|||||Orosirian|1820|||||||No|50437||||||East Kimberly Region. See also Syenite Camp suite. This Suite includes Corrara Granite, Grimpy Monzogranite, Mount Fairbairn Monzogranite, Syenite Camp Monzogranite[advice from GSWA Dec 2013].|Medium- to coarse-grained, even-textured or weakly porphyritic biotite granodiorite and tonalite, with subordinate biotite monzogranite; minor hornblende-bearing granodiorite and monzogranite; mafic enclaves.|acid intrusive rock|||Y||17-JAN-23
Sylvania Dyke Swarm|34041|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Archean||||intrusion|Neoarchean|2747|4|isotopic|||||No|22475||||||This name may be obsolete, and replaced by the informal 'Sylvania Inlier - gabbro sills, dykes 83823', althought the ages are significantly different.|||||Y||15-SEP-23
Sylvania Inlier - BIF #84010|84010|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3239||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-cc-PYV, A-cib-PYV.|Banded iron-formation; chert; metamorphosed||||N||14-SEP-23
Sylvania Inlier - gabbro sills, dykes 83823|83823|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3239||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Sylvania Inlier granitic unit', A-og-PYV. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Gabbro sills and dykes; metamorphosed.|basic intrusive rock|||Y||14-SEP-23
Sylvania Inlier - mafic and ultramafic volcanic rocks #84011|84011|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3239||||Paleoarchean|3530|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-b-PYV, A-bk-P, A-u-PYV.|Mafic and ultramafic volcanic rock; komatiitic basalt; includes metamorphosed peridotite, dunite, pyroxene peridotite, serpentinite, and talc schist; metamorphosed.||||N||15-SEP-23
Sylvania Inlier - rhyolite and dacite 83827|83827|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2930||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Sylvania Inlier greenstones', A-f-PYV. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Rhyolite and dacite flows, and associated volcaniclastic rocks; metamorphosed.|acid volcanic rock|||N||14-SEP-23
Sylvania Inlier - sedimentary rocks 83828|83828|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoarchean|3239||inferred||Paleoarchean|3530||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Sylvania Inlier greenstones', A-s-PYV. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Sedimentary rock, undivided; includes oligomictic and polymictic conglomerate, pebbly sandstone, mudstone, siltstone, and chert; metamorphosed|sedimentary rock|||N||14-SEP-23
Sylvania Inlier granitic rocks 83822|83822|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Mesoarchean|2918|3|isotopic||Paleoarchean|3565|3|isotopic|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Sylvania Inlier granitic unit' A-g-PYV. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Granite to granodiorite; metamorphosed and variably foliated.|acid intrusive rock|foliated metamorphic rock||Y||27-APR-23
Tabba Tabba Leucogranite|35246|Tabba Tabba Adamellite|17616|||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Archean||||intrusion|Archean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa and Wodgina 1:100 000 sheets. Formerly included in the Pippingarra Granitoid Complex.  Incorrectly grouped into Sisters Supersuite in GSWA Record 2006/15 (p11 Table 2).|Biotite(-muscovite) granite; seriate to equigranular; fine- to medium-grained, massive to weakly foliated and metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Table Hill Volcanics|17624|||||Yes|Formation, beds|Formal|Other new published name|Defined|Kalkarindji Volcanic Group|69564|Kalkarindji Suite|75724|Cambrian|500|7|isotopic, K/Ar|eruption|Cambrian|505|3|isotopic, Ar/Ar|||100|WA|No|34417|45149|||||Previous Officer Volcanics  and Kulyong Formation included in Table Hill Volcanics in 2009.  Age: 500+/-7Ma (K-Ar, Veevers 2000); 504+/18Ma (Stern, et al. 2005).  Whole rock Rb/Sr age of 575+/-40 Ma (Compston, 1974) is likely too old? K-Ar age of 484 +/- 4 Ma reflects alteration. Included in the Kalkarindji Suite in Oct 2009.|Basalt in multiple flows; in part vesicular or amygdaloidal; minor interbedded sandstone and siltstone|basic volcanic rock|siliciclastic sedimentary rock||N||23-MAR-23
Table Top Formation|32210|||||Yes|Formation, beds|Formal|Resvd name published|Described|Coonterunah Subgroup|69684|||Paleoarchean|3515||inferred, overlying unit|deposition|Paleoarchean||||||2500||No|61266||Van Kranendonk M.|27-JAN-98|||NORTH SHAW 1:100 000 sheet area 2755. Within the Warrawoona Group (Pilbara Supergroup). This is the oldest recognized formation of Pilbara Supergroup. See also misspelt Tabletop Formation.|Amphibolite; metamorphosed mafic volcanic and intrusive rocks; locally schistose; metamorphosed jaspilitic chert.|metamorphosed basic igneous rock|||N||17-JAN-23
Table Well Monzogranite|80128|Table Well granite|41132|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|||inferred||Neoarchean|||inferred|||||No|71212|||||||Meso-melanocratic, biotite rich granodiorites to leucocratic K-feldspar rich granites.|acid intrusive rock|||Y||17-JAN-23
Tabletop granitoid complex|36912|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|23742||||||Paterson Orogen.|||||Y||17-JAN-23
Taincrow Monzogranite|74837|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Walganna Suite|74845|Neoarchean||||intrusion|Neoarchean||||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: c.2625Ma. Part of the Bald Rock Supersuite.|Undeformed monzogranite to syenogranite; post-tectonic|acid intrusive rock|||Y||17-JAN-23
Talbot Formation|82964|Talbot formation|83391|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Black Flag Group|28372|||Neoarchean|||inferred||Neoarchean|||inferred|||||No|73238||||||Map sheets: Davyhurst, Dunnsville, Kalgoorlie, Yilmia, Cowan (all 100K). Base of Black Flag Group. White Flag Lake, Gidji area, Eastern Goldfields Terrane. Deformation structures briefly described. Not related to Talbot Well Formation.|Sandstone, siltstone and minor shale of epiclastic to volcaniclastic origins.|siliciclastic sedimentary rock|||N||17-JAN-23
Talbot Well Formation|17668|Talbot Well Beds|25509|||Yes|Formation, beds|Formal|Other new published name|Defined|Birrindudu Group|1735|||Statherian|||inferred, overlying unit|deposition|Statherian|||inferred, underlying unit||300|500|NT|No|29804|45140|||||Latest age information (Crispe et al, 2007) suggests Birrindudu Group ranges from 1735 to 1640 Ma.  Talbot Well Formation is the middle unit of this group.|Stromatolitic chert, locally massive or brecciated and poorly bedded; sublithic sandstone, quartz sandstone, laminated siltstone, shale and minor limestone.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Talbot Zone - metasedimentary rocks #84093|84093|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1760||||Paleoproterozoic|2500|||||||No|||||||GSWA integrated basement geology unit P_-md-PTRB. Includes Larry Formation, Fingoon Quartzite, and Butler Creek and Poynton Formations.|Quartzite, psammitic paragneiss, banded paragneiss, and pelitic schist;||||N||25-SEP-23
Talbot and Connaughton Zones - metagranitic rocks #84092|84092|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1762|13|||Paleoproterozoic|1801|12||||||No|||||||After GSWA integrated basement geology unit P_-mgnu-PTRO.|Augen orthogneiss derived from granitic rocks of the Kalkan Supersuite; includes minor orthogneiss derived from granite, mafic, ultramafic, and metasedimentary rocks.||||Y||
Talga Talga Subgroup|17680|||||Yes|Subgroup|Formal|Other new published name|Defined|Warrawoona Group|19508|||Paleoarchean|3477|||eruption|Paleoarchean|3490|||||5000|WA|No|31853|31853|||||Defined 1975. See also Talga-Talga Subgroup. Within the Pilbara Supergroup. Dresser Formation and Mount Ada Basalt, formerly of this subgroup, now assigned to the new Coongan Subgroup, based on new age data.|Amphibolite, carbonated-altered basalt, chert, mafic schist, ultramafic schist, komatiitic basalt, banded iron formation, felsic volcanic rocks, siliciclastic rocks, serpentinised peridotite, metadunite, dolerite, interlayered amphibolite and granite.|basic volcanic rock|metamorphosed ultramafic rock||N||17-JAN-23
Talisman Member|17696|||||Yes|Member, phase|Formal|Resvd name published|Fully described|Forestier Claystone|23599|||Berriasian||||deposition|Berriasian||||||||No|42598|||||||||||N||17-JAN-23
Taliwanya Formation|31875|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Throssell Range Group|70719|||Cryogenian||||deposition|Cryogenian|||||170|||No|43849||||||Paterson Orogen.|Arkose to arkosic sandstone, with local thick beds of polymictic conglomerate and rare thin interbeds of lithic wacke, siltstone, and shale; assignment to Throssell Range Group uncertain.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||03-APR-23
Tallering Formation|26923|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Archean||||deposition|Archean||||||||No|29688|||||||||||N||17-JAN-23
Tamala Limestone|17719|Tamala Eolianite|17716|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Upper Pleistocene|.117||isotopic, U-series|deposition|Chibanian|.133||isotopic, U-series|||250|WA|No|32645|40367|||||Defined by V.Semeniuk (1983). Also formerly the Coastal Limestone. C14 dating: >37 000 years BP. U-series thermal ionisation Mass spectrometer technique age: 0.117 - 0.133 Ma. Apparently intended to be superseded by Tims Thicket Limestone, Myalup Sand and Kooallup Limestone (Semeniuk, 1995: see RefID 62020) but subsequent publications appear not to have accepted this. Forms aquifer on Rottnest Island.|Unconsolidated to strongly lithified calcarenite with calcrete/kankar soils; aeolian. Locally quartzose, feldspathic, or heavy-mineral-bearing. Large-scale eolian cross-bedding.|regolith|||N||17-JAN-23
Tambina Granitic Complex|74681|||||Yes|Group, Suite|Formal|Variation of published name|Fully described||||||||||||||||||No|64580||||||Also informally referred to as the Tambina greenstone complex.|Undivided granitoid rock ; well foliated.||||N||17-JAN-23
Tambina Supersuite|68742|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Paleoarchean|3420|||intrusion|Paleoarchean|3450|||||||No|61253||Van Kranendonk, M.|13-APR-05|||For the TAMBOURAH map sheet; nearest town is Marble Bar.  Age: 3435-3420Ma; age also given as 3.44 to 3.42Ga.  East Pilbara Terrane of Pilbara Craton.|Metatonalite and metagranodiorite; with amphibolite xenoliths; gneissic to massive; locally strongly foliated; local leucocratic monzogranite|metamorphosed acid igneous rock|high grade metamorphic rock||Y||06-JUN-23
Tambourah Monzogranite|39604|Tambourah Granodiorite|17748|||Yes|Formation, beds|Formal|Variation of published name|Described|||Split Rock Supersuite|68672|Archean|2930|||intrusion|Archean|2945|||||||No|24532||||||Note incorrect grouping in the Tambina Supersuite on page 7 of GSWA Record 2006/15. Shown as a unit in the Split Rock Supersuite in the Marble Bar 3rd edition map (RefID 66108), apparently moving it out of the previous Sisters Supersuite.  Sheets and patches are included in Petroglyph Gneiss|Pegmatite, syenogranite, granodiorite, monzogranite, leucogranite, granitoid gneiss, tonalitic orthogneiss|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Tanami Group|17763|Tanami Complex|17761|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Orosirian|1821||inferred, intrusive relationship|deposition|Orosirian|1865||||||NT|Yes|45112||||||Age: ~1880-<1835Ma.  Intruded by Repulse Aplite, Water Tower Tonalite. See also UNIT DEFINITION (2007) for age details. The names Tanami Group and Tanami Complex appear to be used interchangeably in some references; however, Tanami Group has now superseded Tanami Complex. Group intruded by doleritic sills and deformed by the ~1830Ma Tanami Event. Stubbins Formation added to Tanami Group in 2015 (GSWA 1:100 000 maps, Kearney 4557 and Lewis 4657). Consitituents probably all defined in NT?|Schistose to phyllitic greywacke, arenite, siltstone, shale and conglomerate; chert, tuff, basalt, acid porphyry, quartzite, hornfels, arenite, amphibolite.|siliciclastic sedimentary rock|metasedimentary siliciclastic rock|continental backarc basin|N||17-JAN-23
Tandalgoo Formation|17769|Tandalgoo Sandstone|27580|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tanndulla Group|24008|||Eifelian||||deposition|Pragian||||||400|WA|No|24061||||||Of Tanndulla Group?|Includes porous and permeable, pale brown, slightly ferruginous, fine- to medium-grained sandstones with minor interbeds of ferruginous dolomitic siltstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Tangadee Rhyolite|37095|||||Yes|Member, phase|Formal|Other new published name|Described|Kiangi Creek Formation|27174|||Mesoproterozoic|1235|19|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Statherian|1638|14|isotopic, U/Pb-Pb/Pb ion probe|eruption||||No|23744||||||Geological Province: Edmund Basin. This unit appears to have been downgraded from a formation to a member of the Kiangi Creek Formation in ~2010. See also Tangadee Rhyolite Member.|Coherent rhyolite and lapilli-bearing felsic volcaniclastic rocks; Ccoherent lava flows and tuffaceous layers; Felsic volcaniclastic sandstone and siltstone, massive or flow banded rhyolite, locally porphyritic.|acid volcanic rock|||N||17-JAN-23
Tangadee Rhyolite Member|80325|Tangadee Rhyolite|37095|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Kiangi Creek Formation|27174|||Calymmian|1517||inferred||Calymmian|1590||inferred|||||No|70814||||||Clear statement of rank of Tangadee Rhyolite.||acid volcanic rock|||N||17-JAN-23
Tanguin Member|36895|||||Yes|Member, phase|Formal|Other new published name|Described|Hardey Formation|8075|||Archean||||deposition|Archean||||||||No|23746|||||||Mixed felsic and mafic lavas (rhyolite and basalt) and tuffaceous sedimentary rocks.|igneous volcanic rock|||N||17-JAN-23
Tank 44 Gneiss|81035|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Mesoproterozoic|1201|5|isotopic||Paleoproterozoic|1676|10|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|72034||||||Biranup Zone, Kepa Kurl Booya Province, Albany-Fraser Orogen. See also GSWA ENS extract: https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=5024. See GSWA Geochron report 225414.1 for source of U-Pb zircon age.|Interlayered mafic and quartzofeldspathic gneiss with abundant leucosomes, locally with garnet.|high grade metamorphic rock|||U||17-JAN-23
Tanmurra Formation|17793|Medusa Beds|11605|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Weaber Group|19643|||Visean|||inferred, overlying unit|deposition|Visean|||inferred, underlying unit|||301|WA|No|48635|61542|||||Mory's original shelf carbonates unit (1991) is redefined with the upper 26m placed separately in the Sunbird Formation (Gorter et al 2005). See also Tanmurra Group. May be equivalent to Point Spring Sandstone and/or Burvill Formation.  Age: ~328-~322Ma.|Calcareous and dolomitic sandstone with minor limestone, siltstone and shale.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Tantabiddi Member|26162|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Bundera Calcarenite|25709|||Holocene||||deposition|Pleistocene||||||20|WA|No|33593|33593||||||||||N||17-JAN-23
Tantalite Hill pegmatite|73784|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|50542||||||Informal name. Consists of two main flat-lying pegmatite bodies, the southern body has a thickness of 5m and the northern body thickness is 25m.|||||N||17-JAN-23
Tarakalu Member|32533|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Napier Formation|27212|||Famennian||||deposition|Famennian||||||||No|24371||Playford P.|15-JUN-98||||Medium-grained quartz-feldspar sandstone; locally calcareous with interbeds of siltstone, calcarenite and breccia; with some allochthonous blocks of reef limestone.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Tarcunyah Group|31872|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Neoproterozoic|825||inferred, biostratigraphic correlation|deposition|Neoproterozoic|850||||4300|6000||No|44111|23590|||||Formerly included in Yeneena Supergroup, but not according to Rudall 1998, Nullagine 2007 1:250k maps. Some references give broad maximum age estimates from detrital zircon data.|Interbedded quartz sandstone, quartz pebble conglomerate, micaceous siltstone and shale, minor dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tarlwa Pool Tonalite|68500|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Cleland Supersuite|68665|Archean|3236|3||intrusion|Archean|3236|3||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Also, to be used on PINDERI HILLS map sheet; nearest town Karratha. Age: 3236+/-3Ma.|Foliated hornblende-biotite tonalite consisting of sericitised plagioclase with quartz and biotite.|acid intrusive rock|||N||17-JAN-23
Tarmoola Granodiorite|39344|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|24091||||||||acid intrusive rock|||Y|I-type|17-JAN-23
Tarraji Microgranite|17865|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|30898|||||||Porphyritic biotite microgranite and microgranodiorite; phenocrysts of K-feldspar, biotite and quartz.|acid intrusive rock|||Y||17-JAN-23
Tarrara Formation|17868|||||Yes|Formation, beds|Formal|Other new published name|Defined|Carlton Group|3629|||Middle Cambrian||||deposition|Middle Cambrian||||||||No|45038|48886|||||Defined 1969. Defn on Tech File SD/52-14.|Siltstone; minor sandstone and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Taurus Gabbro|31155|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||intrusion|||||||||No|43496||||||||basic intrusive rock|||Y||17-JAN-23
Tawallah Group|17902|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Statherian|1700||inferred|deposition|Statherian|1790||inferred|||6000|NT|No|44306|45162|||||Basal age is poorly constrained from age of unconformably underlying Scrutton Volcanics (McArthur Basin tectonostrat map, Rawlings, 2001). Seems to be divided into upper and lower parts in Geology of Queensland 2013, p56, 58. Includes Wire Creek Sandstone, with  a maximum depositional age of 1847+/-13 Ma. Only other age given is maximum depositional age of 1843+/-4 Ma for Westmoreland Conglomerate.|Conglomerate, sandstone, greywacke, dolostone; basalt, dolerite, rhyolite, rhyodacite, dacite, trachyte, microgranite.|siliciclastic sedimentary rock|igneous volcanic rock||N||17-JAN-23
Taylor Lookout Granite|68889|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Paleoproterozoic|1788|8||intrusion|Paleoproterozoic|1788|8||||||No|61056||||||||acid intrusive rock|||Y||17-JAN-23
Tching Granite|31773|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2680|||||||No|43835|||||||Heterogeneous monzogranite with gneissic inclusions and 2965 Ma zircon xenocrysts; prograde amphibolite grade metamorphism.|acid intrusive rock|||Y||17-JAN-23
Tchintaby Dolomite Member|24017|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|||||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|40088|40089|A.T.Brakel, P.C.Muhling|24-JUN-77||||||||N||17-JAN-23
Tchukardine Formation|17910|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Disappointment Group|33754|||Ediacaran||||deposition|Ediacaran|600||||700|||No|42708||||||Previously in Savory Sub-Basin?|Medium- to coarse-grained sandstone, quartz wacke, siltstone and shale; minor conglomerate.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Teague Granite|40435|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Paleoproterozoic||||intrusion|Archean|2648|8|isotopic, U/Pb|||||No|24578|||||||Medium-grained syenite, quartz syenite, and leucocratic alkali-feldspar granite; locally contains veins of quartz and pseudotachylite|acid intrusive rock|||Y|I-type|08-JUN-23
Tean Formation|25521|||||Yes|Formation, beds|Formal|Other new published name|Defined|Louisa Downs Group|10676|||Ediacaran||||deposition|Cryogenian||||||120|WA|No|44397|48927|||||In the Louisa Basin.  Age: <610Ma.|Mainly fine- to medium-grained feldspathic sandstone and quartz wacke, interbedded with conglomerate, fine- to medium-grained quartz sandstone, and laminated siltstone and mudstone; minor dolomite|siliciclastic sedimentary rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Telegootherra Monzogranite|74838|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Walganna Suite|74845|Neoarchean||||magmatic crystallisation|Neoarchean|2623|9|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.  Age: c. 2625Ma. Part of the Bald Rock Supersuite.|Monzogranite to syenogranite; undeformed, but with common igneous flow fabrics.|acid intrusive rock|||Y||17-JAN-23
Telfer Granite|40181|Telfer River granite|30625|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoproterozoic||||intrusion|Neoproterozoic|625||isotopic, U/Pb-Pb/Pb ion probe|||||No|24594||||||Of the central Paterson Orogen.||acid intrusive rock|||Y||17-JAN-23
Telfer Member|36883|Telfer Formation|24021|||Yes|Member, phase|Formal|Variation of published name|Described|Malu Formation|11133|||Neoproterozoic||||deposition|Neoproterozoic||||||600||No|23414||||||At top of Malu Formation. Hosts Telfer gold mineralisation.|Fine to medium grained quartz sandstone interbedded with clayey sandstone, siltstone and shale, pyritic quartzite, and minor carbonate rock|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tern Formation|67988|Tern Member|17978|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Hyland Bay Subgroup|77685|||Changhsingian||||deposition|Wuchiapingian||||||||No|13242||||||Presented in 'defined' format. Supersedes Tern Member (Hyland Bay Fm). Of Hyland Bay Sub-group (Kinmore Gp).|Seaward transition from coarser clastics to shales. Interbedded claystones, siltstones and fossiliferous shales, coarsening upwards into bioturbated sandstones, calcarenites|siliciclastic sedimentary rock|||N||17-JAN-23
Teronis Member|25524|Teronis member|17983|||Yes|Member, phase|Formal|Other new published name|Described|Elgee Siltstone|6057|||Paleoproterozoic||||deposition|Paleoproterozoic||||||140||No|44366||||||Defn on Tech File E/52-2. Age: >1790Ma.|Stromatolitic dolostone, sandy dolostone, oolitic dolostone, mudstone, micaceous siltstone, and fine-grained sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Tetlow Granite|74145|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Durlacher Supersuite|37648|Statherian||||intrusion|Statherian|1663|5||||||No|68521||Sheppard, S. (GSWA)|12-FEB-08|||For use on map sheet 2148; nearest town is Gascoyne Junction. Age: c.1665Ma. To be published, mid to late 2008 on YINNETHARRA 1:100K map sheet, 1st ed. in next release of GSWA's West Capricorn orogen GIS package. Age: 1663 +/- 5 Ma. Regionally metamorphosed c.1280 Ma.|Strongly tectonised lenses of  metagranite within foliated, coarse-gr., porphyritic metamonzogranite of Davey Well Granite.Comprises metamorph'd aegerine-augite- or hornblende-bearing qtz diorite + minor tonalite. With scattered inclusions of amphibolite|metamorphosed acid igneous rock|||Y||17-JAN-23
Teutonic Bore Formation|78758|Teutonic Bore Complex|40778|||Yes|Formation, beds|Formal|Variation of published name|Described|Gindalbie Group|7247|||Neoarchean|2692|4|isotopic|deposition|Neoarchean|2692|4|isotopic|||||No|70153||Patison, N. (GSWA)|26-FEB-14|||This name reserved to replace existing Teutonic Bore Complex. Map Sheet SH51-1, 3141, WEEBO.  Nearest Town = Leonora. Brief description = Rhyolitic to andesitic volcanic rocks; coeval basalt and dolerite. To be published: GSWA Explanatory Notes Database.|Rhyolitic to andesitic volcanic rocks; coeval basalt and dolerite; metamorphosed.|acid volcanic rock|basic volcanic rock||N||13-SEP-23
Texas Downs Formation|30609|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Paleoproterozoic||||deposition|Orosirian|1800|||||1000||No|43853||Thorne A.M.|02-DEC-96|||Of Tyler et al (1997b), assigned to Kimberley Group by Blake (1997). TURKEY CREEK, BOW 1:100 000 sheet areas, east Kimberley. 1800 Ma. Includes beds formerly mapped as Red Rock Beds or Mount Parker Sandstone. Age updated by I.Sweet.|Fine- to coarse-grained lithic quartz sandstone; pebbly sandstone; conglomerate, siltstone and mudstone; basalt and basaltic breccia|siliciclastic sedimentary rock|basic volcanic rock||N||17-JAN-23
Texas Downs Formation - basalt|74493|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Texas Downs Formation|30609|||Statherian||||eruption|Orosirian||||||||No|||||||Published in Surface Geology of Australia, 1:1,000,000 scale - Western Australia|Massive to amygdaloidal basalt flows and basaltic breccia, dolerite, minor sandstone, siltstone, and mudstone|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Thaduna Formation|18018|Thaduna Greywacke|27910|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Mooloogool Group|22371|||Paleoproterozoic||||deposition|Paleoproterozoic|2170||inferred, underlying unit|||5000||No|42730|65419||||||Rift fill conglomerates, megabreccias and turbidites. Predominantly lithic sandstone, quartz wacke and intercalated siltstone and shale and subordinate dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Thaduna Formation - felsic volcanics|74508|||||Yes|Member, phase|Informal|Variation of published name|Briefly described|Thaduna Formation|18018|||Orosirian||||eruption|Orosirian||||||||No||||||||Quartz-muscovite-chlorite schist after felsic tuff and conglomerate|metamorphosed acid igneous rock|||N||17-JAN-23
Thambrong Formation|18020|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Lyons Group|28702|||Sakmarian||||deposition|Sakmarian|||||||WA|No|44344|45016|||||Defn on Tech File G/50-2.|||||N||17-JAN-23
Thangoo Calcarenite|18028|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Devonian|||||Devonian||||||94|WA|No|44998|44998|||||See also Lexicon.|||||N||17-JAN-23
The Bore Granite|80135|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||||||||||No|69583|||||||Low-Ca granite.|acid intrusive rock|||Y||17-JAN-23
The Depot Limestone|73499|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Semeniuk, V.|20-JUL-07|||||carbonate sedimentary rock|||N||17-JAN-23
The Granites Granite|18039|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Grimwade Suite|40137|Statherian|1780|24|isotopic, Rb/Sr|intrusion|Statherian|1795|6|isotopic, Rb/Sr||||NT|Yes|29812|45140|Blake D.H.|08-NOV-74|Strusz, D.L.|12-FEB-75|Age: a range given in references. Also referred to as Granites Granite. Previously of The Granites Supersuite, The Granites Suite. Now (2013) included in Grimwade Suite? [see NTGS Special Publication 5, p11:12]|Pink and grey porphyritic and non porphyritic biotite adamellite; minor pegmatite and aplite; locally foliated.|acid intrusive rock|||Y||17-JAN-23
The Sisters Lamproite|18048|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Theatre Rocks Monzogranite|30172|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|43102|||||||Subequigranular, fine- to medium-grained biotite monzogranite to granodiorite. High Ca granite.|acid intrusive rock|||Y|I-type|17-JAN-23
Thelman Monzogranite|35232|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Split Rock Supersuite|68672|Archean||||intrusion|Archean|2940|||||||No|24110||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets.|Muscovite-biotite-garnet monzogranite; equigranular to weakly porphyritic; fine to medium grained; massive to weakly foliated; weakly metamorphosed|acid intrusive rock|||Y||08-JUN-23
Thirindine Formation|18058|Thirindine Shale|33225|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|Winning Group|20259|||Lower Cretaceous||||deposition|Lower Cretaceous||||||||No|45015||||||See also Lexicon. Correlated with Windalia Radiolarite.|||||N||17-JAN-23
Thirty Three Supersuite|73634|Perseverance Supersuite|73606|||Yes|Supergroup|Formal|Resvd name published|Described|||||Tonian|954|12|isotopic, U/Pb-Pb/Pb ion probe||Tonian|995|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|68521||Sheppard, S. (GSWA)|24-SEP-07|||Named for Thirty Three River. For use on map sheet SG50-02; nearest town Gascoyne Junction. To be publ: GSWA, 2007, Western Capricorn Orogen, 2007 update: 1:100K Geological Information Series. Probably replaces Perseverance Supersuite, used in 2007.|Porphyritic and leucocratic muscovite-biotite-tourmaline-bearing granite and metagranite, and pegmatites|intermediate intrusive rock|||Y||17-JAN-23
Thomas Rhyolite|18064|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian||||eruption|Stenian|1057|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|30944||||||Bentley Basin.|Porphyritic rhyolite with minor trachyte and dacite; vitric lavas; sample descriptions include: metabasalt, felsic volcanic rock, (feldspar-phyric) rhyolite, rhyodacite.|acid volcanic rock|||N||17-JAN-23
Three Corner Conglomerate Member|24028|||||Yes|Member, phase|Formal|Unknown or process pending|Defined|Beasley River Quartzite|25778|||Rhyacian|2208|10||deposition|Rhyacian|2276|41|||100||WA|No|35976|35976|Trendall, A.F.|19-OCT-78||||Contains abundant clasts of BIF, including pebbles of enriched ore derived from erosion of the Hamersley Group.|siliciclastic sedimentary rock|||N||17-JAN-23
Three Mile Dolerite|34139|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean|||inferred|intrusion|Neoarchean|||inferred||150|800||No|22596||||||GSWA has also used Three Mile Intrusion for this unit, but currently prefers the name Three Mile Dolerite [pers. comm. A. Riganti 30JUL2014]|Differentiated gabbroic sill; leuco- to melanocratic; cumulate to granophyric; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Throssell Range Group|70719|Throssell Group|31873|||Yes|Group, Suite|Formal|Resvd name published|Described|Yeneena Supergroup|31375|||Neoproterozoic|720|||deposition|Neoproterozoic|750||||7000|||No|65725||||||Reserved as Throssell Range. See also Throssell Group.|Sandstone, shale, dolomite and limestone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Throssell Shale|18105|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount House Group|12803|||Ediacaran||||deposition|Ediacaran||||||200||No|44366||||||Lennard River 1:250 000 sheet area (SE51-8). Kimberley region. Different from Throssell Range Group.|Blue-grey poorly laminated micaceous siltstone with minor shale interbeds; sandy in the upper parts with fine grained flaggy grey-green laminated micaceous sandstone interbeds|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Throssell orthogneiss|78511|||||Yes|Formation, beds|Informal|Other new published name|Described|||||Neoarchean|2711|6|||Neoarchean||||||||No|68107||||||Yamarna Terrane. North of the Dorothy Hills Greenstone Belt. Not exposed; sampled from drill core. Contains xenocrysts dated at 2815-2800 Ma, 2775-70 Ma, and 2751 Ma (Cassidy 2007b). RefID 68107|Granite gneiss|metamorphosed acid igneous rock|||Y||17-JAN-23
Thundelarra Supersuite|78988|Windine Supersuite|79822|||Yes|Supergroup|Formal|Variation of published name|Described|||||Mesoarchean|2930||inferred||Mesoarchean|2970||inferred|||||No|70770||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Thundelarra Hsd,Thundelarra 1:100k map sheet. Type area (of Bunnawarra Suite) around around Kynea Rockholes. Metamorphosed 'basement' unit, no known older units in region. Age range given is age range of Bunawarra Suite units (no ref). This name also replaces the reservation for Windinie Supersuite. See also informal Thundelarra Group.|Migmatitic tonalite to granodiorite gneiss with metagranitic leucosomes|metamorphosed acid igneous rock|||Y||17-JAN-23
Tickalara Metamorphics|18130|Halls Creek Metamorphics|7991|||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Orosirian|1852|2|isotopic, U/Pb-Pb/Pb ion probe|metamorphism|Orosirian|1865|||||||No|44317||||||Metamorphosed equivalent of Halls Creek Group. c. 1865 Ma. Occurs in the central zone of Lamboo Complex. Age: c.1865Ma. Age updated by I. Sweet. Intruded by Sally Malay mafic-ultramafic intrusion. In the Central Zone of the Lamboo Complex. Hosts Bow River nickel deposit.|Hornfels, amphibolite, mafic granulite, calc-silicate rock and marble, minor banded iron formation, quartzite, migmatitic pelitic gneiss intruded by mafic to intermediate dykes.|metamorphic rock|||N||17-JAN-23
Tickalara Metamorphics - amphibolites|74502|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian|||||Orosirian||||||||No||||||||Amphibolite: includes epidote, garnet, or clinopyroxene; local volcanic textures; interlayered with pelite, psammite, calc-silicates and marble|metamorphosed basic igneous rock|metasedimentary siliciclastic rock||N||17-JAN-23
Tickalara Metamorphics - gneiss, migmatite and granulite|74506|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian|||||Orosirian||||||||No||||||||Migmatitic pelitic gneiss with layers and pods of mafic granulite, psammitic gneiss and calc-silicate rock; intruded by post-metamorphic mafic to intermediate dykes|high grade metamorphic rock|||N||17-JAN-23
Tickalara Metamorphics - mafic granulites|74503|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian||||intrusion|Orosirian||||||||No||||||||Metamorphosed diorite and amphibolite|intermediate intrusive rock|metamorphosed basic igneous rock||N||17-JAN-23
Tickalara Metamorphics - migmatitic pelitic gneiss|74505|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian|||||Orosirian||||||||No||||||||Migmatitic pelitic gneiss interlayered with mafic granulite|high grade metamorphic rock|||N||17-JAN-23
Tickalara Metamorphics - mylonites|74504|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian||||deformation|Orosirian||||||||No||||||||Strongly sheared mylonitic rocks|fault or shear rock|||N||17-JAN-23
Tickalara Metamorphics - pelites, psammites, schists|74507|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Tickalara Metamorphics|18130|||Orosirian|||||Orosirian||||||||No||||||||Interlayed pelite and psammite, with banded iron-formation, calc-silicate rock, marble, and minor amphibolite; includes biotite-muscovite (-andalusite)-quartz and garnet-staurolite-biotite-muscovite-quartz schist|metasedimentary siliciclastic rock|metasedimentary carbonate rock||N||17-JAN-23
Timperley Shale|18186|||||Yes|Formation, beds|Formal|Other new published name|Defined|Albert Edward Group|24651|||Ediacaran|||inferred|deposition|Ediacaran|||inferred||100|1200|WA|No|44317|45047|||||Ruby Plains 1:100 000 sheet area. Defined as Adelaidean age. Dated 666 +/- 43my (Bofinger,1967 PhD).|Glacigenic massive to thin bedded to laminated micaceous grey and green shale and siltstone with minor thinly bedded lithic sandstone, and interbedded dolomite near base.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Tims Thicket Limestone|73571|Tims Thickett|23009|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pleistocene||||deposition|Pleistocene|||||||WA|No|63454|63454|||||Defined by Semeniuk (1995). Previously part of of the Tamala Limestone. Now proposed as new component to Kwinana Group by B.Gozzard (approved by R.Hocking but unpublished as yet) 24/1/08.PP.|Calcarenitic aeolianite; beach, marine and forameniferal calcarenites and shelly/bioturbated calcarenite with seagrass assemblage biota, and karst features.|carbonate sedimentary rock|||N||17-JAN-23
Tina Formation|78343|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||Allen, H. (GSWA)|19-AUG-13|||Replacing the use of names Pillara and Nullara for the southern and central Canning Basin, exists in petroleum wells of the Barbwire Terrace, Canning Basin. wheretobepublished = A Revised Subsurface Devonian Stratigraphy for the Central and Southern Canning Basin. GSWA Report to be published early 2014. Map sheet= Dummer.|||||N||17-JAN-23
Tindall Limestone|24525|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Daly River Group|5163|||Middle Cambrian|||biozone|deposition|Middle Cambrian|||biozone|||204|NT|Yes|46676|42012|Kruse P.D.|21-APR-88||07-APR-88|Correlated with Headleys Limestone. Originally defined Randal (1962). Redefined Kruse 1988. Lateral correlative of Montejinni Limestone.|Partially dolomitised limestone with silt laminations, interbedded calcilutite and marl; bioclastic limestone, mudstone, siltstone; minor stromatolitic boundstone, cryptalgal laminate; local bioclastic calcarenite, arkosic sandstone, conglomerate|carbonate sedimentary rock|||N||17-JAN-23
Tindals Diorite|77862|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2698|6|isotopic, Pb/Pb|magmatic crystallisation||||No|70153||Hall, C. (GSWA)|31-MAY-13|||Mesocratic granodiorite to diorite sills; garnet- to non-garnet bearing; metamorphosed. Intrudes the Brilliant Formation, Coolgardie Subgroup. Kalgoorlie Terrane. To be published = Geological Survey of Western Australia East Yilgarn Update 2013-14, digital product.|Mesocratic granodiorite to diorite sills; garnet- to non-garnet bearing; metamorphosed|intermediate intrusive rock|||Y||17-JAN-23
Tinganoo Bay beds|78536|Tinganoo Bay Beds|18205|||Yes|Formation, beds|Informal|Variation of published name|Mentioned|||||Jurassic|||||Jurassic||||||||No|13194|||||||||||N||17-JAN-23
Tinkers Dolomite|27280|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Uaroo Group|24053|||Mesoproterozoic||||deposition|Paleoproterozoic|||||||WA|No|37016|39427|J.Baxter|13-JAN-76||||Dolomite and minor volcanic rocks.|carbonate sedimentary rock|igneous volcanic rock||N||17-JAN-23
Tjauwata Group|36772|||||Yes|Group, Suite|Formal|Resvd name published|Defined|Bentley Supergroup|1491|||Stenian|1040||||Stenian|1090|||||1000|NT|Yes|24497|65256|Close, D.F. and Edgoose, C.J.|20-NOV-01|Kruse, P.D.|21-JAN-02|Bentley Basin. There are extensive exposures between Petermann and Bloods Ranges. Disconformably overlain by Neoproterozoic basal sediments of the Amadeus Basin (Dean Quartzite etc.).|Deformed sediments and bimodal volcanics which include: mafic and felsic volcanics; felsic tuffs; interlayered mafic volcanics; felsic volcanics; volcaniclastic sediments and quartzite; conglom. and sst; siltstone; hematitic quartzite.|igneous volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Tjingkulatjatjarra Formation|24036|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||||||deposition|||||||||No|42278||Clarke G.L.|30-MAR-90|||Younger part of the Rudall Complex.|Quartzite and schist.||||N||17-JAN-23
Tjuni Purlka suite|77239|||||Yes|Group, Suite|Informal|Other new published name|Described|||Pitjantjatjara Supersuite|39078|Stenian|1150||||Ectasian|1210|||||||No|66256||||||A-type. Yb-enriched. Geochemistry has within-plate as well as ocean-ridge indicators.|A compositionally unique suite of schlieric leucogranites.|acid intrusive rock|||Y|A-type|17-JAN-23
Tobin Formation|75926|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean||||deposition|Archean||||||||No|66119||||||Yamarna Terrane, Yilgarn Craton.|Wacke and lithic sandstones, siltstone, abundant chert and banded iron-formation; felsic volcanic rocks; local intrusive rocks; metamorphosed.|metasedimentary rock|||N||17-JAN-23
Toby Gabbro|31059|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1855|2|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Orosirian|1865|||||||No|43863||Tyler I.|25-MAR-97|||McIntosh 1:100 000 map sheet, East Kimberley.|Fine-grained, sub-ophitic, biotite- and quartz-bearing gabbro and gabbronorite.|basic intrusive rock|||Y||17-JAN-23
Togo Monzogranite|23017|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||Sheppard S., Tyler I.M., Griffin T.J.|18-NOV-94|||East Kimberley region|Moderately to strongly foliated, medium- to coarse-grained, porphyritic biotite monzogranite and minor granodiorite.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Togobinna Formation|18259|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29845||||||Probably obsolete?|||||N||17-JAN-23
Tollu Group|18269|||||Yes|Group, Suite|Formal|Other new published name|Redefined|Bentley Supergroup|1491|||Stenian|1026|26||eruption|Stenian|1073|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|30942|67375|||||Correlated with the Tjauwata Group.  Age range form Smoke Hill Volcanics. Relationship with Tollu Volcanics? Of Bentley Basin (GSWA, 2011)|Basal sandstones, pebbly sandstones and conglomerate; overlain by amygdaloidal basalts; these overlain by felsic lavas, then basic to intermediate volcanic rocks.|acid volcanic rock|sedimentary rock||N||05-OCT-23
Tolmer Group|18275|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Mesoproterozoic|1200||||Paleoproterozoic|1837|15|isotopic, U/Pb-Pb/Pb ion probe|||1800||No|44315|44314|||||Defined 1962. See also Lexicon. Wingate Mtns 1:100 000 sheet. Correlated with Birrindudu Group. Minimum age: 1200 Ma; maximum age 1780+/-80 Ma., but includes Depot Creek Sandstone, max age 1825 Ma.|Sandstone, dolomite, siltstone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Toodyay Quartzite|18344|Toodyay quartzite|18346|||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|37577|||||||||||N||17-JAN-23
Toolgana Supersuite|79176|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Statherian|1591||inferred||Statherian|1614|12|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70831||Spaggiari, C. (GSWA)|19-AUG-15|||Eucla SH52-14. In a drillhole through Eucla Basin. Interlayered granitic and mafic gneiss.To be published=GSWA Record, September 2015. Eastern Coompana Province.|Granitic to monzodioritic rocks including locally migmatitic monzodioritic to granodioritic to monzogranitic gneisses and metadolerites that have been metamorphosed to amphibolite facies.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||25-SEP-23
Toolonga Calcilutite|18394|Second Gully Shale|16719|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Campanian|75|||deposition|Santonian|85|||||273|WA|No|44995|48861|||||Also supersedes Toolonga Chalk. See also Lexicon. Formerly included in Cardabia Group but its status as a formation did not change when Cardabia Group was revised down to Cardabia Calcarenite.|Chalky calcisiltite to calcilutite, marly, greenish, minor chert and local dolomite in tidal flats, poorly exposed; shallow marine open shelf.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Tooloo Group|79474|Tooloo Subgroup|18399|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Paleoproterozoic|1600||inferred||Orosirian|1970|||||||No|69003||||||Name used in:  Johnson, SP, 2013, The birth of supercontinents and the Proterozoic assembly of Western Australia: Geological Survey of Western Australia, p4, p14-15. [to be indexed soon, CEB Jul-2016]|Siltstone, sandstone, dolomite, chert, local conglomerate and granular iron formation.|siliciclastic sedimentary rock|||N||08-JUN-23
Toondi Formation|18405|Madura Formation|10987|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Cenomanian||||deposition|Albian|||||||WA|No|41751|41751|||||Age from palynomorphs. Previously included in Madura Formation.|Siltstone, claystone and shale. Minor sandstone; commonly pyritic.|siliciclastic sedimentary rock|||N||17-JAN-23
Toorare Tonalite|68632|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2985|7||intrusion|Archean|2985|7||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Age: 2985+/-7Ma. Intruded by Munni Munni. Oldest component in the Cherrata Granitic Complex.|Foliated, and locally gneissic, hornblende tonalite and granodiorite. More magnetic than other components of the Cherratta Granitoid Complex, and locally contains amphibolitic enclaves.|metamorphosed acid igneous rock|||N||17-JAN-23
Top Flag Sandstone|25545|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41170||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Top Water Tonalite|31889|Top Water Monzogranite|23026|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Paleoproterozoic|1850|||intrusion|Paleoproterozoic|1865|||||||No|43854||Sheppard S.|23-FEB-95|||East Kimberley region|Medium-grained, quartz-phyric biotite tonalite and granodiorite; metasediment inclusions abundant near Marboo Formation contacts|acid intrusive rock|||Y||17-JAN-23
Toppin Hill Formation|75357|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2677|7|isotopic, U/Pb-Pb/Pb ion probe|deposition|Neoarchean|2683|5||||||No|66120||Romano, S. (GSWA)|06-JUL-09|||A package of intermediate to felsic volcanic to volcaniclastic rocks in the Yamarna - Mount Gill greenstone belt (NE Yilgarn Craton). They range in composition from dacite to rhyolites and minor andesites. Will be published in the very near future in several GSWA publications, including 1:100 000 maps and geochronology reports|Felsic schist; metamorphosed volcanics including dacite, rhyodacite, rhyolite, felsic volcanic and volcaniclastic rocks; minor sandstone to siltstone.|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
Torbay Adamellite|25546|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|||||||||intrusion|||||||||No|33274||||||||acid intrusive rock|||Y||17-JAN-23
Torrens Formation|18445|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Hyland Bay Subgroup|77685|||Wordian||||deposition|Roadian||||||||No|13222||||||Permian, Bonaparte Basin.|||||N||17-JAN-23
Tough Go Monzogranite|74826|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Big Bell Suite|74825|Archean|2710|10||intrusion|Archean|2710|10||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Austin Downs Supersuite. Cuts across greenstones.|Metamonzogranite, commonly foliated; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Toweranna Porphyry|23033|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Indee Suite|40281|Mesoarchean|||inferred|eruption|Mesoarchean|2954|4||||||No|43821||J.Fitton, R.C.Horwitz, G.Sylvester|06-NOV-74|||Reservation dropped Jan 1980, but name published 1997; and in GSWA Record 2006/15 (Van Kranendonk). Intrudes De Grey Supergroup. Age: c.2954+/-4Ma.|Metamorphosed porphyritic high-Mg granodiorite.|metamorphosed acid igneous rock|||Y||17-JAN-23
Town Dam ophiolites|25549|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|36869|||||||||||N||17-JAN-23
Townsend Quartzite|18515|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|Buldya Group|33826|||Cryogenian||||deposition|Cryogenian|||||||WA|No|30385|45149|||||Age: ~830 Ma [in 1998] . May be part of extensive sand blanket which includes Mount Kinahan Sst, Vaughan Springs Qtzite, Heavitree Qtzite and Lewis Range Sst (Redcliff Pound Gp). Of Buldya Group (advised RH GSWA 090606). Contains the Skirmish impact structure. The Pindyin Sandstone (SA) may be a synonym. Lith desc is for a combination of Townsend Quartzite and Lefroy Formation  on the Cooper 1:100k map (2011)|Laminated to very thick bedded, well-sorted, medium- to coarse-grained quartz arenite and feldspathic arenite; minor conglomerate and shale beds; medium- to large-scale cross-bedding.|siliciclastic sedimentary rock|||N||17-JAN-23
Tozer Formation|31018|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Whundo Group|31020|||Mesoarchean|3118|||deposition|Mesoarchean|3126|||||2500||No|23794||Williams I., Hickman A.|10-MAR-97|||Precambrian. West Pilbara. Age: ~3120Ma. Within the Pilbara Supergroup.|Alternating metamorphosed basalt, andesite, dacite, rhyolite and thin sedimentary units including chert and BIF.|igneous volcanic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Trafalgar Dolerite|30171|Trafalgar Dolerite Member|23036|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Devon Consols Basalt|5437|||Archean||||intrusion|Archean||||||||No|43102||||||Part of or intrudes Devon Consols Basalt.?||basic intrusive rock|||Y||17-JAN-23
Traine Formation|18531|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount House Group|12803|||Ediacaran||||deposition|Cryogenian|||||10|60||No|44366|||||||Green to brown coarse lithic sandstone with minor sandy dolomite and dolomitic sandstone, and scattered glacial erratics.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Trainor Hill Sandstone|18532|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Marla Group|28212|||Late Cambrian||||deposition|Middle Cambrian||||||520|SA|Yes|31698|23282|Benbow M.||Gatehouse, C.G.|07-FEB-83|of Krieg (1973) and redefined by Benbow (1982). Redefined 1997.|Mostly non-marine sandstone, siltstone, claystone and minor dolomite, limestone, chert and conglomerate.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Treachery Formation|35919|Treachery Shale|18559|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kulshill Group|9896|||Sakmarian||||deposition|Asselian||||||||No|13222|67354|||||Superseded by Treachery Shale (Mory 1988) but now replaces that name again (Gorter et al. 2008). ?Of Kulshill Group or has this Group been abandonded? Hydrocarbon seals. Oil and gas shows present in sandstones. Trace fossils are abundant in places.|Predominantly carbonaceous, argillaceous, tillitic and varved siltstone with claystone; minor sandstone; several cores have massive diamictic fabric with facetted pebbles.||||N||17-JAN-23
Trealla Limestone|18563|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|Cape Range Group|3521|||Tortonian|10.5|||deposition|Miocene|17.5|||||415|WA|No|44537||||||See also Lexicon. Overlies/interfingers with Pindilya Formation; also overlies Lamont Sandstone. Overlain by/interfingers with Pilgramunna Fm; and Bare Fm. Age: 17.5-10.5Ma.|Calcirudite to calcilutite with coralgal limestone, commonly fossiliferous, quartzose in places; shallow marine to littoral|carbonate sedimentary rock|||N||17-JAN-23
Tredian Formation|18566|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|30565|||||||||||N||17-JAN-23
Trevors Bore Formation|79013|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2753||inferred|deposition|Mesoarchean|2817||inferred|||||No|70153||J.Sapkota (GSWA).|20-JAN-15|||Map Sheet = Leonora. Nearest Town = Leonora. The Formation consists of basalt and komatiitic basalt with minor ultramafic and sedimentary rocks. Where to be published = GSWA digital releases (maps and explanatory notes).|Basalt and komatiitic basalt; includes minor ultramafic and sedimentary rocks; metamorphosed.|basic volcanic rock|||N||17-JAN-23
Triangle Island Sandstone|80931|||||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||||Archean|||||Archean|||||||WA|No|||Doutch, D. (CODES, U Tas)|08-MAR-19|||1:250,000 Widgiemooltha SH51-14; 1:100,000 Lake Lefroy 3235. Previously included in Merougil Conglomerate, Kambalda area. Unclear how related to old Triangle Island Beds, but both used in Yilgarn. Proposed publication: Doutch, D. A., and Cas, R. A., 2019, Stratigraphic and facies architecture of the Neoarchaean Black Flag and Merougil Groups, Kambalda, Western Australia: Depositional and volcanic evolution of Late Archaean submarine fan to fan-delta sequences that host significant gold deposits.||siliciclastic sedimentary rock|||N||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
Triberton Granodiorite|36769|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Corunna Downs Granitoid Complex|34394|Emu Pool Supersuite|68766|Paleoarchean|3300|||intrusion|Paleoarchean|3317|||||||No|50381||Leon Bagas - GSWA|05-FEB-02|||Archaean Granite in the Pilbara. Age: <3317Ma, <3300Ma.|Biotite-hornblende granodiorite to tonalite; medium to coarse grained, feldspar porphyritic; common mafic xenoliths; minor porphyritic monzogranite.|acid intrusive rock|||Y||17-JAN-23
Trigg Hill pegmatite|39775|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Archean||||intrusion|Archean||||||||No|24193|||||||||||Y||17-JAN-23
Trillbar Formation|80089|Trillbar Member|78400|||Yes|Formation, beds|Formal|Variation of published name|Described|Bryah Group|29869|||Paleoproterozoic|1920||inferred||Paleoproterozoic|2014||inferred|||||No|70795||||||Upgrading of Trillbar Member of Narracoota Formation?|Gabbro, microgabbro, mafic and ultramafic schist; minor mafic rock; metamorphosed.|metamorphosed basic igneous rock|metamorphosed basic igneous rock||Y||17-JAN-23
Triodia Formation|78308|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||deposition|||||||||No|||H. Allen (GSWA).|19-AUG-13|||Formalising (a variation of) an informal WMC stratigraphic name Triodia Shale. Occurs in petroleum wells and mineral drillholes of the central Canning Basin wheretobepublished = GSWA report A revised subsurface stratigraphy for the Central and Southern Canning Basin. Estimated publication date early 2014. Map sheet = Dummer.|||||N||17-JAN-23
Tripod Hill Member|18603|Tripod Hill Komatiite|18601|||Yes|Member, phase|Formal|Variation of published name|Described|Kambalda Komatiite|9165|||Archean||||deposition|Archean|2702|4|||50|700||No|41662|||||||Characterised by thin (1-10m) well-differentiated komatiite flow units. Flows exhibit well-developed flow top breccia, spinifex texture zones and well-developed B-zone cumulates. Only a few discontinuous sedimentary intervals.|basic volcanic rock|||N||17-JAN-23
Triton Tonalite|74816|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Cullculli Suite|74815|Archean|2785|||intrusion|Archean|2785|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. Part of the Annean Supersuite.|Metatonalite.|acid intrusive rock|||Y||17-JAN-23
Triumph Gabbro|18604|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Great Boulder Suite|77865|Neoarchean|2675|6||intrusion|Neoarchean|2675|6||||600||No|41249|||||||Gabbro to quartz dolerite; thin basal pyroxenite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Triwhite Sandstone|18605|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Liveringa Group|25997|||Cisuralian|||biozone|deposition|Cisuralian|||biozone||77|100|WA|No|44998|45153|||||Of Traves (1956). Mapped as Liveringa Group in GSWA 500K Solid Geology GIS (2008).|Sandstone interbedded with siltstone, intraformational claystone and conglomerate|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Tropicana Gneiss|79293|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleoproterozoic|1600||||Neoarchean|2640|||||||No|70182||Spaggiari, C. (GSWA)|23-NOV-15|||Plumridge  SH51-08 and Neale  SH51-04 and Minigwal SH51-07 sheet areas. Interlayered granitic gneiss including tonalitic and dioritic compositions, mafic gneiss, garnet gneiss, and minor metachert and metamorphosed iron formation; may include intrusions of Paleoproterozoic metagranite. Tectonic Unit hierarchy: Tropicana Zone, Kepa Kurl Booya Province, Albany-Fraser Orogen.Publications: Occhipinti, SA, Doyle, MG, Spaggiari, CV, Korsch, RJ, Cant, G, Martin, K, Kirkland, CL, Savage, J, Less, T, Bergin, L and Fox, L 2014, Preliminary interpretation of the deep seismic reflection line 12GA-T1: northeastern Albany-Fraser Orogen, in Albany-Fraser Orogen seismic and magnetotelluric (MT) workshop 2014: extended abstracts compiled by CV Spaggiari and IM Tyler: Geological Survey of Western Australia, Record 2014/6, p. 44-59. Doyle, M.G., Fletcher, I.R., Foster, J., Large, R.R., Mathur, R., McNaughton, N.J., Meffre, S., Muhling, J.R., Phillips, D. and Rasmussen, B., 2015. Geochronological constraints on the Tropicana Gold Deposit and Albany-Fraser Orogen, Western Australia. Economic Geology, 110(2): 355-386.|Interlayered granitic gneiss including tonalitic and dioritic compositions, mafic gneiss, garnet gneiss, and minor metachert and metamorphosed iron formation; may include intrusions of Paleoproterozoic metagranite.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||Y||25-SEP-23
Tropicana Zone - metagranitic rocks #84094|84094|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1600||||Neoarchean|2800|||||||No|||||||Used in GSWA integrated basement geology as AP_-mg-KKBT. Intrudes Tropicana or Hercules Gneiss. In Kepa Kurl Booya Province of the Albany-Fraser Orogen.|Metagranite.||||N||
Troughton Group|18608|Troughton Formation|23051|||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Callovian|||biozone|deposition|Anisian|||inferred, biostratigraphic correlation|||||No|41459||||||Reserved as Troughton Formation. Age: ~240-~154Ma.|Dominantly siliciclastic rocks.|siliciclastic sedimentary rock|||N||17-JAN-23
Truslove Suite|79198|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Esperance Supersuite|78596|Stenian|1140||inferred, geochemical correlation||Stenian|1200||inferred, geochemical correlation|||||No|70182||Spaggiari, C. (GSWA)|23-JUN-15|||Map Sheet=Esperance SI51-6. Nearest Town=Esperance. Brief description=Undeformed to weakly deformed granite. Published in 2015 in Geological Survey of Western Australia Report 150.|Dominantly monzogranite; undeformed to moderately deformed; may include magnetite-rich varieties|acid intrusive rock|||Y||08-JUN-23
Tuckanarra Suite|74831|||||Yes|Group, Suite|Formal|Resvd name published|Described|||||Neoarchean|2657||inferred||Neoarchean|2697||inferred|||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. NOT part of Austin Downs Supersuite, as wrongly shown in GSWA Annual Review 2007-08 (Van Kranendonk pers. comm. 14-APR-2011)|Consists of strongly foliated and locally magmatically layered granodiorite to monzogranitic rocks; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Tuckfield Member|24538|||||Yes|Member, phase|Formal|Resvd name published|Defined|Poole Sandstone|27680|||Artinskian||||deposition|Artinskian||||||323|WA|Yes|42613|42613|R.Towner|18-OCT-76|WA SNSC|31-AUG-77|Middle part of Poole Sandstone. Difficult to distinguish from overlying Christmas Creek Member.|Coarsening-upward sandstone, minor mudstone; plant fossils.|siliciclastic sedimentary rock|||N||17-JAN-23
Tulki Limestone|27594|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cape Range Group|3521|||Burdigalian|19.5|||deposition|Aquitanian|23|||||100||No|44959||||||See also Lexicon. Age: ~23-19.5Ma.|Reddish to yellowish, partly clayey foraminiferal calcarenitic packstone; shallow marine.|carbonate sedimentary rock|||N||17-JAN-23
Tumagee Granite|31888|Tumagee Monzogranite|23060|||Yes|Formation, beds|Formal|Resvd name published|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|43854||Sheppard S.|23-FEB-95|||East Kimberley region|Medium-grained, even-textured or weakly porphyritic biotite monzogranite and granodiorite; minor tonalite.|acid intrusive rock|||Y||17-JAN-23
Tumbiana Formation|18668|Tumbiana Pisolite|18672|||Yes|Formation, beds|Formal|Other new published name|Defined|Fortescue Group|6834|||Neoarchean|2715|6|isotopic, U/Pb|deposition|Neoarchean|2727|5|isotopic, U/Pb||100|500|WA|Yes|31307|31853|Hickman A.H., Lipple S.L.|15-JAN-75|WA SNSC|06-JAN-75|Defined as Archaean in 1975, considered to be Palaeoproterozoic in 1979, now (1991) Archaean age again. See 94/27718. Ages from Trendall et al (2004), RefID 60706.|Amygdaloidal basalt; massive, porphyritic, and vesicular; local pillow basalt, also vesicular basalt; basaltic to andesitic volcaniclastic siltstone and sandstone, felsic volcaniclastic sandstone and tuffaceous rocks, minor conglomerate.|sedimentary rock|igneous volcanic rock||N||17-JAN-23
Tumblagooda Sandstone|18674|||||Yes|Formation, beds|Formal|Other new published name|Redefined|||||Early Silurian|443||inferred, overlying unit|deposition|Late Cambrian|495||||1300|3500|WA|No|23292|42441|||||See also Lexicon. Also in Southern Carnarvon Basin. (Hocking, 1991). See also Cambrian "Tumblagooda Sandstone". Includes arthropod traces.|Sandstone, minor siltstone and granule to pebble conglomerate, redbed succession.|siliciclastic sedimentary rock|||N||21-SEP-23
Tunganary Formation|18692|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Speewah Group|17150|||Orosirian|1834||inferred, overlying unit|deposition|Orosirian|1839|4||||290||No|44317||||||Age: c.1835Ma.|Fine grained, feldspathic sandstone interbedded with micaceous or sericitic siltstone, phyllite, minor coarse quartz sandstone, and mudstone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Tunney Member|18696|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Muderong Shale|13315|||Valanginian||||deposition|Valanginian||||||||No|37689|||||||||||N||17-JAN-23
Turee Creek Group|18702|Turee Creek Formation|18701|||Yes|Group, Suite|Formal|Variation of published name|Defined|Mount Bruce Supergroup|12546|||Rhyacian|2208|10|inferred, intrusive relationship|deposition|Siderian|2449|3|inferred, underlying unit|||5000|WA|No|35976|35976|||||Turee Creek Basin. Age inferred and base only constrained by detrital zircons. Minimum age of 2208 +/- 10 Ma from SHRIMP Pb/Pb baddelyite analysis of two mafic sills which intrude the Turee Creek Group. [pers. comm. Stefan Mueller, from his PhD. See also Mueller et al. 2005]. Note that there is considerable debate on the age of overlying units in the Wyloo Group. RefID 69028, from GSWA Record 2011/25 (2012) gives Turee Creek Group age range as 2445-2210 Ma.|Mudstone, siltstone, sandstone, conglomerate, dolomite; minor diamictite, limestone and iron formation; intruded by Balgara Dolerite sills|siliciclastic sedimentary rock|carbonate sedimentary rock||N||28-JUN-23
Turee Creek Supersequence|33832|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Described|||||Siderian|2408||||Siderian|2452|||||3100||No|22546||||||Turee Creek Basin. 2452-2408 Ma. See also Turee Creek Group.|||||N||17-JAN-23
Turkey Creek Gabbro|81575|Turkey Creek microgabbro-norite|33842|||Yes|Formation, beds|Informal|Variation of published name|Briefly described||||||1846|9|isotopic, U/Pb-Pb/Pb ion probe|metamorphism||1848|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|71873|||||||Hornblende-bearing non-cumulate gabbronorites.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Turkey Hill Formation|18707|Turkey Hill beds|28163|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Ediacaran|610|||deposition|Cryogenian||||||||No|41751||||||See the former Turkey Hill Beds for full description. Age: 610Ma|Sandstone, siltstone and mudstone; possibly diamictite.|siliciclastic sedimentary rock|||N||03-APR-23
Turner Granite|18710|Turner granite|18716|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|30766||||||||acid intrusive rock|||Y||17-JAN-23
Turnstone Formation|18718|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Bathurst Island Group|1249|||Maastrichtian||||deposition|Campanian|77||||||NT|No|41532|42442|A.J.Mory|17-JUL-87|||Age: ~77-~65Ma [in 2001].|Calcareous claystones and calciluties.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Turret Dolerite|78347|Vivien Gabbro|80129|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean|2690.7|1.2|isotopic, U/Pb-Pb/Pb, TIMS|intrusion|Neoarchean|||inferred|||||No|70153||Sapkota, J. (GSWA)|30-AUG-13|||As distinct from the Turrets Formation (Devonian siliciclastics) in QLD (no. 24052). The Turret Dolerite is a concordant intrusive unit that sits above the White Hope Basalt in the Mount White Syncline. The White Hope Basalt is the youngest extrusive/sedimentary formation of the Two Sisters Subgroup. The Turret Dolerite contains a thin pyroxenite base in the eastern limb of the syncline. It is characterized by an elevated primitive mantle-normalized thorium to titanium ratio and enriched light rare earth element profile. Geochemically, it compares with the Paringa Basalt described in Barnes et al. (2012) from the Kambalda region. wheretobepublished = GSWA digital package 2013/2014. Previously (invalidly) called Vivien Dolerite.|Dolerite with a pyroxenite base, medium grained; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Twin Hills Monzogranite|79568|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean||||intrusion|Neoarchean|2803|3|isotopic|magmatic crystallisation||||No|71270||Sapkota, J. (GSWA).|17-AUG-16|||Map Sheet = Melita Nearest Town = Menzies. Banded granitic gneiss from within this unit has been dated at 2803 ± 3 Ma (Dunphy et al, 2003). Wheretobepublished = GSWA explanatory notes and interpreted bedrock geology map in 2017. The `Twin Hills banded granitic gneiss' and `Twin Hills gneiss' refer to the same unit. The lithological component of the name has been modified so that it better matches with the field information (Wally Witt¿s Melita Explanatory notes 1994, page 30).|Foliated to gneissic metamonzogranite and is intruded by relatively leucocratic monzogranite and late pegmatite dykes.|metamorphosed acid igneous rock|acid intrusive rock||Y||17-JAN-23
Twin Table Monzogranite|68502|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Railway Supersuite|68669|Archean|3114|5||intrusion|Archean|3114|5||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk). Also, to be used on DAMPIER map sheet; nearest town Karratha. Intrudes Nallana Formation.|Medium-grained monzogranite and granodiorite, alkali-feldspar granite|acid intrusive rock|||Y||17-JAN-23
Two Bobs pegmatite|73785|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||intrusion|||||||300||No|50542||||||Informal name. A series of parallel and interconnecting pegmatite bodies. Hosts the Two Bobs prospect.|Placer, granitic rare-metal pegmatite.||||N||17-JAN-23
Two Gum Monzogranite|18745|Two Gum Granite|23074|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean||||intrusion|Neoarchean||||||||No|42705||||||Reserved as Two Gum Granite.|Medium-grained, porphyritic, biotite-hornblende monzogranite.|acid intrusive rock|||Y||17-JAN-23
Two Sisters Subgroup|77949|||||Yes|Subgroup|Formal|Resvd name published|Briefly described|Kalgoorlie Group|26647|||Neoarchean|2680||||Neoarchean|2720|||||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||Map Sheet: SH51-1,  Munjeroo 2941 (or after two Sisters Well on Everett Creek 2841?). Basalt and komatiitic basalt interleaved with ultramafic rocks; minor sedimentary rocks; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Basalt and komatiitic basalt interleaved with ultramafic rocks; minor sedimentary rocks; metamorphosed|basic volcanic rock|ultramafic igneous rock||N||20-AUG-23
Tyama Granite|31861|||||Yes|Formation, beds|Formal|STRATLEX Entry|Briefly described|||O'Callaghans Supersuite|31858|Neoproterozoic||||intrusion|Neoproterozoic||||||||No|50436||||||||acid intrusive rock|||Y|I-type|17-JAN-23
Tyler Formation|18752|||||Yes|Formation, beds|Formal|Variation of published name|Mentioned|||||||||deposition|||||||||No|41997|||||||||||N||17-JAN-23
Uaroo Group|24053|||||Yes|Group, Suite|Formal|Other new published name|Defined|Bangemall Supergroup|34951|||Mesoproterozoic||||deposition|Paleoproterozoic|||||||WA|No|38988|39427|J.Baxter|04-NOV-75||||Sandstone, siltstone, mudstone, dolostone, and chert; minor conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Ularring Monzogranite|34584|Ularring Granite|23081|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||||Neoarchean|2632|4|isotopic, U/Pb|intrusion|Neoarchean|2632|4|isotopic, U/Pb|||||No|22841||||||Variation of reserved name Ularring Granite.|Fine- to coarse-grained, weakly seriate, biotite monzogranite containing minor opaque oxides, muscovite, are rare apatite. Weakly recrystallised, but mainly undeformed.|acid intrusive rock|||Y||17-JAN-23
Ullawarra Formation|18795|||||Yes|Formation, beds|Formal|Other new published name|Defined|Edmund Group|34906|||Calymmian|1460|9|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1620||inferred, underlying unit||100|650|WA|No|44319|40089|||||Geological province: Edmund Basin. Within the Bangemall Supergroup. Minimum age constrained by dolerite sill at Coodardoo Well (1449 +/-5 Ma), but more recent maps give older minimum age of 1460 +/-9 Ma, a SHRIMP U-Pb zircon age from a volcaniclastic unit; it is within error of c.1465 Ma age of Narimbunna Dolerite.|Mainly thin-bedded black and maroon siltstone and mudstone, with lesser interbedded fine- to medium-grained sandstone, and minor chert, dolostone and felsic volcaniclastic rock. Characterised by large number of dolerite sills.|siliciclastic sedimentary rock|||N||17-JAN-23
Umutju Granite|76098|||||Yes|Formation, beds|Formal|Other new published name|Described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1145|6||intrusion|Mesoproterozoic|1175|10||||||No|66284|||||||Medium- to coarse-grained hornblende-pyroxene granite metamorphosed at granulite facies; plagioclase or K-feldspar phenocrysts.|metamorphosed acid igneous rock|||Y||17-JAN-23
Umutju Granite Suite|33650|Umutju|30604|||Yes|Group, Suite|Formal|Variation of reserved name|Defined|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1120|||intrusion|Mesoproterozoic|1180||||||NT|Yes|60683|60683|Scrimgeour I., Close D.,Edgoose C.|13-NOV-96|Beier, P.|27-JUL-99|Petermann Ranges 1:250 000 sheet area. Equivalent to part of Musgrave-Mann Metamorphics, Olia Gneiss and unnamed metamorphosed granites of Forman (1966, 1972).|Foliated to undeformed clinopyroxene- and/or hornblende-bearing porphyritic granite with rounded blue-grey phenocrysts of K-feldspar. Less commonly equigranular and medium-grained. Localised biotite-hornblende-garnet migmatite|acid intrusive rock|||Y||17-JAN-23
Undawidgi Supersuite|79175|||||Yes|Supergroup|Formal|Resvd name published|Briefly described|||||Calymmian|1487|9|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Calymmian|1526|5|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation||||No|70831||Spaggiari, C. (GSWA)|19-AUG-15|||Eucla SH52-14. In a drillhole through Eucla Basin. Foliated metagranite and metavolcanic rocks. To be published=GSWA Record, September 2015. Of Coompana Province.|Metagranitic and possible bimodal metavolcanic rocks including variably foliated metatonalites and metamonzogranites, which are locally gneissic and migmatitic; metamonzodiorites; and variably sheared/mylonitic felsic and mafic schists.|metamorphosed acid igneous rock|foliated metamorphic rock||Y||25-SEP-23
Underwood Gneiss|39512|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Callina Supersuite|68674|Paleoarchean|3462||inferred, intrusive relationship||Paleoarchean|||||||WA|No|65726||Williams, I.|23-OCT-03||||Banded tonalite, granodiorite and monzogranite, gneiss and migmatite; strongly sheared; S-C mylonite fabric.|high grade metamorphic rock|||Y||17-JAN-23
Ungani Dolomite|77035|||||Yes|Formation, beds|Informal|Reserved|Reserved|||||||||deposition|||||||||No|||Hocking, R. (GSWA)|06-JUL-12|||Intersected in Ungani petroleum exploration well by Buru Energy Limited. Unit name reserved as informal pending formal description of the unit. Interpreted reservoir unit of the Ungani oil field.  Probably of the Fairfield Group, as it sits on Nullara Limestone, but could be a facies correlating with uppermost Nullara Limestone.|||||N||17-JAN-23
Upper Nickol Suite|69697|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Archean|3012||||Archean|3024|||||||No|61253||||||Probably named for upper part of Nickol River?  In the Pilbara Craton. Probably not intended as a stratigraphic unit name?|||||Y||17-JAN-23
Utting Calcarenite|19021|||||Yes|Formation, beds|Formal|Other new published name|Fully described|Weaber Group|19643|||Visean|||||Visean||||||120||No|45038||||||Defn on Tech File D/52-10. Formerly mapped as "Milligans Beds".|Open shelf carbonates. Richly fossiliferous including brachiopods, corals and trilobites. Sandy limestone, calcareous sandstone; minor sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Valentine Siltstone|19036|||||Yes|Formation, beds|Formal|Other new published name|Described|Speewah Group|17150|||Orosirian||||magmatic crystallisation|Orosirian|1834|3|isotopic, U/Pb-Pb/Pb ion probe|||75||No|44317||||||1834 +/- 3 Ma|Poorly exposed dark grey-green tuff and tuffaceous siltstone with conchoidal fracture surfaces, overlain by grey-green flaggy laminated siltstone grading up into fine feldspathic sandstone.|igneous volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
Van Diemen Sandstone|19044|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Lutetian||||deposition|Lutetian||||||250|NT|No|31410|45121|||||Geological Province: Money Shoal Basin - north and south.|Friable white to yellow, medium to coarse quartzose sandstone, lenticular beds of siltstone, and minor beds of granular conglomerate; strongly weathered in outcrop.|siliciclastic sedimentary rock|||N||17-JAN-23
Van Emmerick Conglomerate|27598|||||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Famennian||||deposition|Givetian|||||||WA|Yes|44998|44998|||||Defined in Veevers, 1958a. Redefined Playford and Lowry, 1966a. [card file] See also Lexicon.|Massive boulder fanglomerate at base; mainly quartzite and sandstone clasts up to 1m in a granitoid-derived matrix, overlain by fluviatile to deltaic conglomerate and sandstone;  granitoid, schist and felsic volcanic clasts. Minor interbedded limestone.|siliciclastic sedimentary rock|||N||17-JAN-23
Vasse Group|34566|Vasse|23102|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Late Permian|||||Late Permian||||||||No|22820||||||Vasse River Coalfields, Perth Basin|||||N||17-JAN-23
Vee Formation|19070|Vee formation|19071|||Yes|Formation, beds|Formal|Resvd name published|Defined|Bathurst Island Group|1249|||Campanian||||deposition|Cenomanian|||||||NT|No|41459|42442|A.J.Mory|14-SEP-87|||Defined by Mory (1988).|Marl, calcilutite, calcareous claystone.||||N||17-JAN-23
Venture Slate Member|19076|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|30562|||||||||||N||17-JAN-23
Vetters Subgroup|79360|||||Yes|Subgroup|Formal|Resvd name published|Briefly described|Kalgoorlie Group|26647|||Neoarchean|||||Neoarchean||||||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Named after Vetters Sand Hill on the Bardoc map sheet. Vetters Subgroup lies within Davyhurst, Bardoc and part way into the Kalgoorlie 1:100K map sheet areas. It forms part of the Kalgoorlie Group in the Eastern Goldfields Superterrane of the Yilgarn Craton. To be published = GSWA digital release 2016.|Fine to very fine grained mafic rock with minor ultramafic rock, undivided; metamorphosed; commonly deeply weathered.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||U||20-AUG-23
Victoria Plateau Sandstone|19096|Victoria Plateau Beds|19095|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Rupelian||||deposition|Priabonian||||||20|WA|No|30973|36293||||||Poorly sorted, usually fine-grained sandstone; lesser siltstone and conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Victorious Basalt|24063|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Archean||||eruption|Archean||||||3000||No|42221||Witt W.K.|02-OCT-87|||Previously considered part of the Grants Patch Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group. Victorious Basalt lies within Davyhurst, Bardoc and part way into the Kalgoorlie 1:100K sheets areas.|Plagioclase-phyric series of several lava flows vary from fine grained-glassy pillow basalt to coarse non-pillowed flows.|basic volcanic rock|||N||05-SEP-23
Victory Dolerite|30170|Victory Dolerite Member|23109|||Yes|Formation, beds|Formal|Resvd name published|Described|||||Archean|2693|50|isotopic, U/Pb|intrusion|Archean|2693|50|isotopic, U/Pb|||||No|43102||||||||basic intrusive rock|||Y||17-JAN-23
Vincent Member|24064|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|41831||A.E.Cockbain|07-JAN-88||||||||N||17-JAN-23
Vines Formation|35793|||||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Cambrian|540|||deposition|Ediacaran|545||||||WA|Yes|24161|64103|Stevens M.|04-APR-01|||Vines 1:100 000 sheet area. Type section - clastic sequence in Vines 1 stratigraphic corehole. Original definition by Stevens et at (2002) in Sedimentary Basins of Western Australia 3.  Redefined 2008. Age: ~540Ma.|Clast-supported, relatively well-rounded and sorted, dark-brown to reddish, pebble conglomerate, with lesser quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Violet Valley Tonalite|19132|||||Yes|Formation, beds|Formal|Other new published name|Fully described|||Kevins Dam Suite|31898|Orosirian|1805|||intrusion|Orosirian|1835|||||||No|44317||||||Much of it previously assigned to Mabel Downs Tonalite. Age updated by I.Sweet. See also Violet Valley Granite, Violet Valley Granodiorite.|Fine- to coarse grained, weakly porphyritic biotite granodiorite and biotite-hornblende tonalite; weakly to moderately foliated.|acid intrusive rock|||Y||17-JAN-23
Virgin Hills Formation|19137|||||Yes|Formation, beds|Formal|Other new published name|Defined|Mount Pierre Group|13030|||Famennian||||deposition|Frasnian||||||220|WA|No|44403|45153|||||See also Lexicon.|Fossiliferous, commonly red, shallow marine reef complex marginal slope and basin facies, interbedded calcareous siltstone, shale, sandstone, calcarenite, calcilutite; large blocks of reef common forming mega-breccia in places|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Vittoria Member|24065|Vittoria member|19140|||Yes|Member, phase|Formal|Variation of published name|Described|Safety Bay Sand|16508|||Holocene||||deposition|Holocene||||||.5|WA|No|40367|40367|Semeniuk, V.|18-JAN-80||||Modern beach ridge/dune sequence of partly indurated, root-casted and calcreted sediment of the older members of the unit, truncated by a humic soil over which this member rests.|carbonate sedimentary rock|||N||17-JAN-23
Vivien Formation|77944|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2660||inferred|deposition|Neoarchean|2690||inferred|||||No|71310||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After Vivien (historic) Mine. Map Sheet: SG51-13, Sir Samuel 3042. Felsic volcaniclastic rock and sedimentary siliciclastic rock; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014. Considered part of Mount White Group when reserved, but ungrouped when published in  East Yilgarn GIS for 2015.|Felsic volcaniclastic rock, volcanolithic sandstone, and siltstone; minor conglomerate; metamorphosed|siliciclastic sedimentary rock|acid volcanic rock||N||17-JAN-23
Vlaming Sandstone|27601|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Cape Range Group|3521|||Miocene|10|||deposition|Miocene|12|||||35||No|45015||||||See also Lexicon. Formerly of Yardie Group. Included in Cape Range Group in 1980.|Well sorted, medium grained, cross-bedded quartzose calcarenite with calcrete soils; aeolian|carbonate sedimentary rock|||N||17-JAN-23
Volpress Member|29102|Volpress member|19143|||Yes|Member, phase|Formal|Resvd name published|Described|Menzies Formation|26027|||||||deposition|||||||||No|41199|||||||||||N||17-JAN-23
Voodoo Child Formation|79289|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||||Paleoproterozoic|1700|||deposition|Paleoproterozoic|1780|||||||No|69595||Spaggiari, C. (GSWA)|18-NOV-15|||Plumridge SH51-08 and Neale SH51-04 sheet areas. Interlayered mafic to ultramafic intrusive rocks, metabasaltic to metadacitic volcanic rocks, and metasedimentary rocks; may include Paleoproterozoic metagranite.  Tectonic Unit hierarchy: Tropicana Zone, Kepa Kurl Booya Province, Albany-Fraser Orogen. Publications:  Occhipinti, SA, Doyle, MG, Spaggiari, CV, Korsch, RJ, Cant, G, Martin, K, Kirkland, CL, Savage, J, Less, T, Bergin, L and Fox, L 2014, Preliminary interpretation of the deep seismic reflection line 12GA¿T1: northeastern Albany¿Fraser Orogen, in Albany¿Fraser Orogen seismic and magnetotelluric (MT) workshop 2014: extended abstracts compiled by CV Spaggiari and IM Tyler: Geological Survey of Western Australia, Record 2014/6, p. 12¿27.|Interlayered mafic to ultramafic intrusive rocks, metabasaltic to metadacitic volcanic rocks, and metasedimentary rocks may include Paleoproterozoic metagranite.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Vulcan Formation|19148|||||Yes|Formation, beds|Formal|Variation of published name|Described|Swan Group|17573|||Valanginian||||deposition|Callovian||||||||No|42053||||||See also informal subdivisions: Lower Vulcan Formation, Upper Vulcan Formation. Includes interpreted deep marine fan sediments considered to be a reservoir facies.|Marine sediments including mudstones and submarine fan sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Wabco Shale|19171|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Mount Minnie Group|29294|||Statherian||||deposition|Statherian||||||||No|44477|||||||Mudstone with thin interbeds of quartz sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wadarrah Quartz Monzonite|29721|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2643|6|isotopic, U/Pb|intrusion|Neoarchean|2644|13||||||No|43289||Westaway & Wyche S.|13-SEP-95|||DARLOT 1:100 000 sheet area, northern Goldfields. Replaced by Wadarrah Quartz Monzogranite?|Hornblende-bearing quartz monzonite with local platy alignment.|intermediate intrusive rock|||Y||17-JAN-23
Wade Creek Formation|33982|Wade Creek Sandstone|19173|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|24503||||||See Wade Creek Sandstone for definition. Is this a deliberate name change or a misspelling?|Fine- to coarse-grained quartz sandstone, lithic quartz sandstone, pebbly sandstone, conglomerate, siltstone, and mudstone; also ferruginous chert breccia member.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Wadera Member|19179|Wadera Calcarenite|19177|||Yes|Member, phase|Formal|Variation of published name|Described|Cardabia Calcarenite|3589|||Thanetian||||deposition|Thanetian||||||||No|40617||||||See also Wadera Calcarenite Member. The lithological component does not form part of the formal current name (email per R. Hocking, May 2008).|||||N||17-JAN-23
Wadeye Group|74204|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Bashkirian|||||Serpukhovian||||||||No|61542||||||Includes Point Spring Sandstone (formerly part of Weaber Group), Arco and Aquitaine Formations. Overlies Weaber Group; unconformably overlain by Kulshill Group. Geological province: Bonaparte Basin/Petrel-Sub-basin.|Siltstone, shale, sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wadgingarra Gabbro|19180|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Warriedar Suite|78997|Neoarchean||||intrusion|Neoarchean|2793||inferred|||||No|32337||||||To be used in Murchison Domain updates in 2015. Named after Wadgingarra Hill, Yalgoo 1:100k sheet area. 28deg18'S, 116deg44'E. Also type area. Intrusive into the central part of the Yalgoo greenstone belt, likely the lower Polelle Group.|Massive gabbro with granophyric leucogabbro towards the top of the intrusion; metamorphosed. Layered intrusion - some original minerals preserved.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
Wadjemup Formation|24067|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Pliocene||||deposition|Late Miocene||||||200|WA|No|41751|41751|A.E.Cockbain|03-SEP-85||||Yellow to red, well-sorted medium- to coarse-grained calcarenite; some limestone and dolomite.|carbonate sedimentary rock|||N||17-JAN-23
Wagina Sandstone|26193|Wagina sandstone|19191|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Wuchiapingian||||deposition|Wordian||||||251|WA|No|44219|36293|||||See also Lexicon. This name supersedes Eradu Coal Measures & Indarra Beds. (Clake et al., 1951). See also Wagina Formation.|Fine- to medium-grained clayey quartz sandstone; minor conglomerate, shale, siltstone and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Wahlgu Formation|35794|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ediacaran|600||inferred, geological correlation|deposition|Cryogenian||||||500|WA|No|23571||Stevens M.|04-APR-01|||Wahlgu rockholes, Wahlgu 1:100 000 sheet area. Marinoan diamictite strata previously called ?Lupton Formation. Type section in Empress 1A stratigraphic corehole.  Probably published by originator in WABS 3?|Sandstone, diamictite (commonly polymictic), siltstone, and dolomite; characteristically reddish.|siliciclastic sedimentary rock|||N||03-APR-23
Waladah Gabbro|75709|Barloweerie Gabbro|74851|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Yalgowra Suite|74829|Neoarchean|2711|2|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Neoarchean||||||2000||No|66195||Ivanic, T. (GSWA)|10-MAY-10|||Layered gabbronorite, gabbro and leucogabbro over 2km thick intrude into Polelle Group metasediments of the Murchison Supergroup. Named after Waladah Bore, Madoonga 1:100k sheet area. 26deg50'S, 118deg03'E. Type area: Barloweerie Peaks. Published = AJES article on mafic-ultramafic intrusions of the Youanmi Terrane in 2010/2011.|Gabbro with gabbronorite base and harrisitic leucogabbro top contact; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Walatharra Formation|26978|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Quaternary||||deposition|Pliocene||||||||No|36890|||||||||||N||17-JAN-23
Walcott Formation|26286|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Priabonian||||deposition|Lutetian||||||400|WA|No|40800|40800|R.M.Hocking, H.T.Moors|25-NOV-83||||||||N||17-JAN-23
Waldburg Dolerite|79111|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Calymmian|1505|3|isotopic, U/Pb|intrusion|Calymmian|1517|8|isotopic, U/Pb||100|500|WA|Yes|70795||Blay, O. (GSWA)|08-MAY-15|Haines, P.(GSWA) WA|22-APR-22|Map Sheet = 2348 Nearest Town = Meekatharra. briefdescription = The Waldburg Dolerite comprises several, predominantly northwesterly-trending dolerite sills, which intrude the middle and lower parts of the Edmund Group within the Western Capricorn Orogen. The sills have limited exposure, but were emplaced in a structural corridor between two major fault structures, the Lyons River Fault and the Ti Tree Shear Zone at, or near, fault contacts between different lithologies, or within silicified siltstone units and/or sedimentary successions dominated by carbonate rocks. The sills have been precisely dated at  ~1517-1505 Ma. To be published = On or after May 2015 in GSWA geochronological records, geological reports, maps and digital packages. GSWA Record 2018/4|Massive medium- to very-coarse grained moderately- to distinctly-weathered dolerite and/or a very coarse-grained leucogabbro.|basic intrusive rock|||N||17-JAN-23
Waldecks Member|19225|||||Yes|Member, phase|Formal|Other new published name|Fully described|Worral Formation|24124|||Pridoli|||inferred|deposition|Wenlock|||inferred, underlying unit|||195|WA|No|40837|||||||Mainly red-brown to grey mudstone, often variably calcareous or dolomitic, with interbeds of dolomite, limestone and fine-grained sandstone and dolomite; minor anhydrite common; local significant sandstone sub-units.|fine grained siliciclastic rock|||N||17-JAN-23
Walganna Suite|74845|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Bald Rock Supersuite|74836|Neoarchean|2602||unknown||Neoarchean|2647||unknown|||||No|64891||Van Kranendonk, M. (GSWA)|29-OCT-08|||Geological province: Murchison Domain.  Age: c. 2625Ma.|Biotite(-muscovite) monzogranites to syenogranites, ranging in texture from coarsely K-feldspar-porphyritic to coarse-grained, equigranular rocks.|acid intrusive rock|||Y||17-JAN-23
Walgidee Hills lamproite|19230|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Walgoo Monzogranite|78361|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Walganna Suite|74845|Neoarchean|2600|||intrusion|Neoarchean|2647||||||WA|No|70140||Ivanic, T. (GSWA)|09-SEP-13|||Youanmi, Windimurra 100k sheets.  To use in the southern Murchison Domain. Age: c. 2620 Ma. Type area: Walgoo paddock, northern Youanmi mapsheet, 8km south of Palagea Rockholes, lat 28deg31', long 118deg44'.|Monzogranite, locally rich in muscovite and biotite; predominantly with equigranular texture and locally K-feldspar porphyritic.|acid intrusive rock|||Y||17-JAN-23
Walgunya Trondhjemite|39503|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3294||inferred||Paleoarchean|3324||inferred, intrusive relationship||||WA|No|63441||Williams, I.|23-OCT-03|||See Miningarra Trondhjemite.|Quartz-rich biotite trondhjemite; medium- to coarse-grained; metamorphosed.|metamorphosed acid igneous rock|||Y||17-JAN-23
Wallabi Limestone|19251|||||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|36890||||||||carbonate sedimentary rock|||N||17-JAN-23
Wallaby Conglomerate|38643|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Archean|2673|5|isotopic, U/Pb|deposition|Archean|2675|4|isotopic, U/Pb-Pb/Pb ion probe||1200|1500||No|23786|||||||A clast-rich cobble conglomerate with rounded to well-rounded, compact to elongate clasts, mostly basalt and porphyritic dacite-rhyolite; matrix is coarse-grained quartzosericitic sandstone; metamorphic biotite common.|sedimentary rock|||N||17-JAN-23
Wallaby intrusive suite|84053|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|70292||||||Probably informal reference to all the intrusive rocks at the Wallaby deposit. See also Wallaby monzonite-syenite suite, p358. Seems to be broader than the Wallaby syenite, used p358, RefID70292.|?monzodiorite, syenite.||||N||
Wallal Sandstone|27250|Wallal sandstone|19262|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Oxfordian|157.3||inferred, biostratigraphic correlation|deposition|Middle Jurassic|174.1||inferred, biostratigraphic correlation|||500|WA|No|48596|45153|||||Defn on Tech File E/51-13, PSSA Pub 5 (1961).|Sandstone; minor siltstone and conglomerate with abundant microflora and fauna, lignite.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||13-SEP-23
Wallara Formation|78876|Finke beds|75936|||Yes|Formation, beds|Formal|Resvd name published|Redefined|||||Cryogenian|||inferred, biostratigraphic correlation|deposition|Tonian|750||inferred||||NT|Yes|71088||Edgoose, C. (NTGS)|11-APR-14|Kraus, S., Normington, V.|10-NOV-14|SG53-01 Henbury. Mixed sandstone, silicified dolostone and siltstone unit. Sits above Bitter Springs Formation and below Areyonga Formation. Poorly exposed in northern, south central and western Amadeus Basin. Best known and described from Wallara 1 petroleum hole. Has been previously informally referred to as "Finke beds". The name will be published in 2015 or 2016 in NTGS and Geological Survey of Western Australia publications and maps.|Predominantly dolostone, quartz sandstone, feldspathic quartz sandstone, and red and green mudstone; with subordinate dark carbonaceous mudstone and shale and arkosic sandstone. Commonly silicified to chert and sandy chert duricrust at surface.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Wallareenya Granodiorite|35243|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Indee Suite|40281|Mesoarchean|2954|4||intrusion|Mesoarchean|2955|||||||No|24327||Smithies H., Champion D.|22-FEB-00|||Wallaringa and Wodgina 1:100 000 sheets. Possible alternative name for Wallaringa Granodiorite. Within the Sisters Supersuite.  Intrudes De Grey Supergroup.|Hornblende-biotite granodiorite and tonalite; massive to moderately foliated; locally inclusion-rich; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Wallaringa Granodiorite|35244|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||||||intrusion|||||||||No|||Smithies H., Champion D.|22-FEB-00|||Wallaringa & Wodgina 1:100 000 sheets. Alternative name for Wallareenya Granodiorite.||acid intrusive rock|||Y||17-JAN-23
Waloo Waloo Monzogranite|68516|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2988|7||intrusion|Archean|2988|7||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.||New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).   Also, to be used on COOYA POOYA map sheet; nearest town Roebourne. Cooya Pooya explan notes (2004) refer to informal Waloo Waloo monzogranite on p13.|Biotite monzogranite; medium-grained; weakly foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Walpa suite|77241|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Pitjantjatjara Supersuite|39078|Ectasian|1215|13|isotopic, Sm/Nd||Ectasian|1219|12|isotopic, Sm/Nd|||||No|66256|||||||A-type. Yb-enriched, within-plate granite.|acid intrusive rock|||Y|A-type|17-JAN-23
Walpole Mud|73502|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|20-JUL-07||||||||N||17-JAN-23
Walsh Tillite|19334|||||Yes|Formation, beds|Formal|Other new published name|Described|Mount House Group|12803|||Ediacaran|610||inferred, geological correlation|deposition|Cryogenian|||inferred||10|70|WA|No|39796|45923|||||See also Lexicon. Correlated with Marinoan glaciation (ca610Ma) but palaeomagnetic evidence suggests an older Sturtian glaciation (ca770-750Ma)[from 2005 reference]. See also Walsh Formation, WA (not QLD).|Diamictite with striated pebbles cobbles and boulders of quartzite and lesser siltstone, dolomite and igneous rocks in a green sandy or purple silty matrix, overlain by thinly laminated dolomite; local stromatolitic dolomite and pebbly quartz sandstone|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Walter Williams Formation|24071|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Neoarchean|2692|||deposition|Neoarchean|2710|||||400||No|42221||Witt W.K.|29-AUG-88|||Previously considered part of the Linger and Die Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group.The Walter Williams Formation lies within the Davyhurst and Bardoc 1:100K map sheets areas.|Peridotite; relict olivine cumulate texture; commonly serpentinized or silicified.|ultramafic intrusive rock|ultramafic volcanic rock||N||17-JAN-23
Waltha Woora Formation|19339|Waltha Woora Beds|19338|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Tarcunyah Group|31872|||Neoproterozoic||||deposition|Mesoproterozoic|||inferred, geological correlation||250|300||No|45923||||||On the basis of lithological features and tectonic structures the author has reassigned this unit at Woodie Woodie from the Neoproterozoic Tarcunyah Group to the Mesoproterozoic Manganese Group, and correlated it with the Stag Arrow and Balfour Formations. RefID 71042 Jones (2017).|Stromatolitic dolostone, siltstone, shale, minor sandstone; discontinuous basal sandstone and conglomerate.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Walungurru Volcanics|42366|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Statherian|1617|14|isotopic, U/Pb|eruption|Statherian|1650|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|61387||Close, D.|13-DEC-04|||Mount Rennie 1:250, 000 map sheet (SF52-15). Of the Kintore Domain, Warumpi Province.|Felsic, intermediate to mafic volcanic rocks including silicified cryptocrystalline, porphyritic andesine, andesite, dacite, basaltic andesite, basalt, and dolerite.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Waluwiya Suite|41856|||||Yes|Group, Suite|Formal|Resvd name published|Defined|||||Statherian|1630||inferred|intrusion|Statherian|1645||inferred||||NT|Yes|60674|67565|I.R. Scrimgeour, D.F. Close, C.J. Edgoose|05-OCT-04|Kruse, P.D.|05-OCT-04|Of the 1640-1630Ma intrusive rocks era. Intrudes Yaya Metamorphic Complex.|Dark, fine- to medium-grained, foliated hornblende-biotite-garnet granodiorite to quartz diorite; foliated hornblende granodiorite; hornblende-biotite felsic migmatite; weakly porphyritic granodiorite and charnockite|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Wandagee Formation|19355|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Byro Group|3230|||Artinskian||||deposition|Kungurian|||||116|244|WA|No|44537|45016|||||See also Lexicon. SG50-1. Richly fossiliferous. Replaced by Cody Limestone in Ruby 1, Abdul's Dam 1 (Crostella et el., 2000). Type section: Minilya River, north of Wandagee Hill, 23d44m30sS, 114d25mE.|Siltstone and fine quartz wacke, variably calcareous, very fossiliferous.|fine grained siliciclastic rock|medium-coarse grained siliciclastic rock||N||17-JAN-23
Wandarrie Granite|31768|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2735|||||||No|43835|||||||Coarse-grained, equigranular, leucocratic monzogranite.|acid intrusive rock|||Y||17-JAN-23
Wandarry Shale|19365|Wandarry Shale Member|25697|||Yes|Member, phase|Formal|Variation of published name|Briefly described|Ashburton Formation|698|||Statherian||||deposition|Orosirian||||||||No|42260||||||Of Horwitz (1980). Implied to be a member of the Ashburton Formation. Thorne and Seymour (1991) considered this name invalid despite their recognition of a three-fold subdivision of Ashburton Formation. Formerly considered to be a subdivision of the Ashburton Formation.|Distal, fine-grained shales.|siliciclastic sedimentary rock|||N||17-JAN-23
Wandarry Supersequence|34367|||||Yes|Supergroup|Sequence stratigraphy|Sequence strat published|Briefly described|||||Orosirian|1862||||Orosirian|1906|||||||No|22682||||||1906-1862 Ma.|||||N||17-JAN-23
Wandiwarra Member|36477|Wandiwarra Formation|26199|||Yes|Member, phase|Formal|Variation of published name|Described|Chiall Formation|33196|||Paleoproterozoic|1685|35|isotopic, K/Ar|deposition|Paleoproterozoic|2048|||||500||No|23581||||||K-Ar age of ~1688 Ma from glauconitic sandstone (Horowitz 1975), reported for the Formation.|Siltstone, sandstone, minor limestone; commonly glauconitic; rippled to cross-bedded, local hummocky cross-stratification; common ball-and-pillow structures. Siltst, mudst, shale, commonly laminated; minor fine-grained sst, commonly glauconitic.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wangarlu Formation|19392|Wangarlu Mudstone Member|27251|||Yes|Formation, beds|Formal|Other new published name|Defined|Bathurst Island Group|1249|||Maastrichtian|||biozone|deposition|Albian|104||biozone|||2000|WA|No|41459|42442|||||Age: ~104-~65Ma.|Kaolinitic mudstone, siltstone, commonly radiolaria-rich, montmorillonitic when fresh; minor silty claystone, sublabile sandstone; scattered nodular pyrite.|siliciclastic sedimentary rock|||N||17-JAN-23
Wangata Monzogranite|79007|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Walganna Suite|74845|Neoarchean||||intrusion|Neoarchean|2630||inferred, intrusive relationship|||||No|70226||Ivanic, T. (GSWA)|13-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Wangata Hill, Yalgoo 1:100k sheet area. 29deg11'S 117deg06'E. Type area: Wangata Hill. Intrusive into adjacent granitic plutons of the Walganna Suite of the Bald Rock Supersuite.|Coarse-grained undeformed monzogranite with distinctive igneous layering defined by gradational variation in the modal abundance of biotite and K-feldspar (0.5 to 3 m scale); K-feldspar up to 30 mm long; metamorphosed|metamorphosed acid igneous rock|||Y||17-JAN-23
Wangee Formation|73851|||||Yes|Formation, beds|Formal|Other new published name|Described|Point Samson Group|73847|||Archean||||deposition|Archean||||||||No|24391|||||||Black-white laminated chert, massive black chert and felsic hyaloclastite with black chert dykes.|non-carbonate chemical or biochemical sedimentary rock|igneous volcanic rock||N||17-JAN-23
Wangina Sandstone|31146|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||deposition|||||||||No|43495||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Wangine Monzogranite|79351|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2600||inferred|intrusion|Mesoarchean|3010||inferred|||||No|71270||De Paoli, M. (GSWA)|25-FEB-16|||Lies across Davyhurst 1:100K map sheet area. Named from the Wangine Lakes that lie within the extent of the granite body. It forms part of the Yilgarn Craton Granites. To be published = GSWA digital release 2016. Used in GSWA Interpreted Basement Geology 2020.|Leucocratic, medium-grained, biotite-bearing monzogranite.|acid intrusive rock|||Y||17-JAN-23
Wanjarri Granite|83880|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean|||||Archean||||||||No|69414||||||Agnew-Wiluna Greenstone belt, Kalgoorlie Terrane, Yilgarn Craton. The authors cite Black et al., Geoscience Australia (http://www.ga.gov.au/oracle/ozchron/frames.html [unpublished]) for this name. The name appears informally in GAs FGDM database, against Sample ID 96969034, and samplenos 1507538, 2626982, apparently entered by D. Champion. This unit is included in 'felsic intrusives 74292' in the GA 1:1million, 2012 Surface Geology of Australia GIS.|||||Y||08-AUG-23
Wankanki Supersuite|73256|||||Yes|Supergroup|Formal|Resvd name published|Fully described|||||Ectasian|1293|9|inferred||Ectasian|1345|||||||No|63864||Tyler, I. (GSWA)|09-MAY-07|||On the BELL ROCK 1:100,000 sheet. Mapped as 13 separate but un-named units (2011). These high-grade intrusives incorporate rafts of Wirku Metamorphics in the west of the Musgrave Block (Sen, 2009). Musgrave Province.|Metagranite and gneiss. Metamorphosed felsic volcanic rocks mixed with interlayered psammite and pelite. Calc-alkaline plutonic rocks.|acid intrusive rock|metamorphosed acid igneous rock||Y|I-type|18-SEP-23
Wankari Volcanics|33646|Wankari volcanics|67926|||Yes|Formation, beds|Formal|Resvd name published|Briefly described|Tjauwata Group|36772|||Stenian|1041|2||eruption|Stenian|1051|22|isotopic, U/Pb-Pb/Pb ion probe|||||No|24496||Edgoose C.|27-JUL-99|||Age (see the informal Wankari volcanics): 1041+/-2Ma (Pb-Pb evap.technique) and 1051+/-22Ma (SHRIMP U-Pb zircon). See also the misspelt Wankeri volcanics.|Locally amygdaloidal, fine-grained, porphyritic felsic volcanics with minor interlayered mafic units. Includes porphyritic rhyolite with rare epidotized and amygdaloidal mafic volcanics.|acid volcanic rock|basic volcanic rock||N||04-OCT-23
Wanna Formation|19416|Wanna Beds|19415|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Silurian||||deposition|Ordovician||||||||No|42030||||||Previously considered Devonian age.|Fine to very fine, well sorted subangular micaceous neritic or non-marine sandstone; minor claystone.|siliciclastic sedimentary rock|||N||17-JAN-23
Wanneroo Member|23136|||||Yes|Member, phase|Formal|Other new published name|Defined|Leederville Formation|10291|||Aptian||||deposition|Valanginian|||||108|265|WA|No|12759|12759|Davidson W.A.|18-MAY-88|||Onshore Perth Basin. Notified by A. Davidson 28-NOV-94. See also misspelt Wanneroo Formation.|Discontinuous interbedded sandstones, siltstones and shales of marine and non-marine origin; individual sand beds generally 12-15 m thick; granitic scree boulders common in SE margin of Perth Region.|siliciclastic sedimentary rock|||N||17-JAN-23
Warakurna Supersuite|73257|||||Yes|Supergroup|Formal|Resvd name published|Defined|||||Stenian|1050|11|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Stenian|1085|2|isotopic, Ar/Ar||||WA|Yes|64408||Wingate, M. (GSWA)|10-MAY-07|||Mafic and felsic igneous rocks, collectively forming the Warakurna Large Igneous Province. Interpreted as a mantle plume event. Max age from Alcurra Dolerite. Warakurna Large Igneous Province. Mostly sills and plugs? Of Coompana Province also?|Dolerite, gabbro, amphibolite, gabbronorite, gneissic granite, granite, rhyolite, monzogranite, syenogranite, syenite; metamorphosed.|metamorphosed basic igneous rock|metamorphosed acid igneous rock||Y|A-type|17-JAN-23
Warambie Basalt|29116|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Whim Creek Group|26211|||Mesoarchean|3009|4|inferred, overlying unit|eruption|Mesoarchean||||||1000|WA|Yes|30766|30766|Fitton M.J., Horwitz, Sylvester, G.|23-JUN-75|WA SNSC|01-APR-76|Age: ~3.0Ga. Within the Pilbara Supergroup in the Pilbara Craton (Whim Creek Basin).|Vesicular basalt and basaltic andesite, locally porphyritic, and volcaniclastic and siliciclastic sedimentary rocks; metamorphosed|basic volcanic rock|||N||08-JUN-23
Waratjarra suite|77242|||||Yes|Group, Suite|Informal|Other new published name|Briefly described|||Pitjantjatjara Supersuite|39078|Stenian|1148|6||magmatic crystallisation|Stenian|1162|16||||||No|66256|||||||A-type. Within-plate, Yb-enriched granite.|acid intrusive rock|||Y|A-type|17-JAN-23
Warbadoo Tonalite|79003|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Rothsay Suite|79002|Neoarchean||||magmatic crystallisation|Neoarchean|2743|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|70226||Ivanic, T. (GSWA)|13-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Warbadoo Hill, Yalgoo 1:100k sheet area. 28deg08'S 116deg40'E. Type area: Pindathuna Creek. Intrusive into top-Norie Group and base-Polelle Group supracrustal rocks.|Metatonalite, locally migmatitic, and metagranodiorite and metamonzogranite phases; abundant schistose metamonzogranite sheets intrusive into country rocks; typically lineated; pegmatic phase hosts blue lepidolite.|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Warburton Porphyry|19445|||||Yes|Formation, beds|Formal|Other new published name|Mentioned|||||||||eruption|||||||||No|30390|||||||||||U||17-JAN-23
Wardens Hill conglomerate|19452|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29784|||||||||||N||17-JAN-23
Warlawurru Supersuite|78455|||||Yes|Supergroup|Formal|Resvd name published|Described|||||Calymmian|1542||||Statherian|1607|||||||No|69729||Quentin De Gromard, R. (GSWA)|17-OCT-13|||For use in the Diorite 1:100 000 sheet area, West Musgrave Province. Strongly foliated to mylonitic fine- to medium-grained biotite-rich granite/gneiss.|Strongly foliated to gneissic biotite(-hornblende) metasyenogranite; garnet-bearing; commonly migmatitic.|metamorphosed acid igneous rock|fault or shear rock||Y||18-SEP-23
Warmun Dolerite|80581|Bow River Dolerite Suite|80091|||Yes|Formation, beds|Informal|Resvd name published|Briefly described|||||Paleoproterozoic|1814||inferred||Paleoproterozoic|1829||inferred|||||No|71811||Wingate, M., Phillips, C. (GSWA)|03-JUL-18|||Name replaces invalid Bow River Dolerite Suite. Lansdowne, Dixon Range, Lissadell, Mount Ramsay 250k. Dolerite; mainly northwest to north-northwest trending dykes crosscutting the Central and Western Zones of the Lamboo Province. See also GSWA ENS: Wingate, MTD and PHILLIPS, C (partial report), Warmun Dolerite (P_-_wn-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 06 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite dykes.|basic intrusive rock|||Y||17-JAN-23
Warnbro Group|19470|Warnbro group|19471|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Aptian|||inferred, biostratigraphic correlation||Valanginian|||inferred, biostratigraphic correlation|||1500|WA|No|30188|36293|||||(Cockbain and Playford, 1973).|Interbedded sandstone, siltstone and shale; minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Warnbro Megasequence|80795|||||Yes|Clan|Sequence stratigraphy|Sequence strat published|Briefly described|||||Aptian|||inferred, biostratigraphic correlation|deposition|Valanginian|||inferred, biostratigraphic correlation|deposition||||No|71958||||||published in: An Integrated Study of the CO2 Storage Potential in the Offshore Vlaming Sub-Basin. GA Record 2015/09, p40, p45.|||||N||20-AUG-23
Waronga gneiss|19479|||||Yes|Formation, beds|Informal|Unknown or process pending|Described||||||||||||||||||No|32637||||||See also Waroonga gneiss. Unclear which spelling is correct. Both place names exist.|||||N||17-JAN-23
Waroonga Gneiss|80130|Waroonga gneiss|37219|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Neoarchean|||inferred||Neoarchean|||inferred|||||No|71212|||||||quartzofeldspathic gneiss of quartz-albite-orthoclase leucogranite, garnetiferous luecogranite and porphyritic monzogranite composition.|metamorphosed acid igneous rock|||Y||17-JAN-23
Waroonga gneiss|37219|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||||2655|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|23989||||||See also Waronga Gneiss.Unclear which spelling is correct. Both place names exist.|Biotite-rich granodiorite gneisses, generally deeply weathered, and sheared leucogranitic dykes. Contains large amphibolite xenoliths.|high grade metamorphic rock|||N||17-JAN-23
Waroongunyah Formation|24079|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Tarcunyah Group|31872|||Cryogenian||||deposition|Neoproterozoic|||||300|600|WA|No|43056|41669|R.J.Chin, I.R.Williams|18-APR-83|||Balfour Downs explanatory notes. Age said to be ~800 Ma and also  <1070 Ma  on maps in 2004. Shown as Cryogenian (but also ~840 Ma) in a figure in 2005. Basis for numerical ages not stated.|Laminated to massive dolomite, stromatolitic dolomite, sandy dolomite, siliceous oolite, sandstone, siltstone and shale; evaporite pseudomorphs.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Warra Warringa Formation|19484|Warrawarringa Formation|19499|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Newman Subgroup|14107|||Artinskian||||deposition|Artinskian||||||50|WA|No|45015|45016|||||Of Byro Group. SG50-6.|||||N||17-JAN-23
Warrada Dolomite Member|19485|||||Yes|Member, phase|Formal|Unknown or process pending|Described|Irregully Formation|8786|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44481||||||Of Daniels (1970). Probably obsolete. May be equivalent to Cheyne Springs Formation?|||||N||17-JAN-23
Warramboo Sandstone|19492|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Mount Minnie Group|29294|||Statherian||||deposition|Statherian||||||||No|44477|44477||||||Quartz sandstone, minor siltstone and mudstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Warrawoona Group|19508|||||Yes|Group, Suite|Formal|Other new published name|Defined|Pilbara Supergroup|15189|||Paleoarchean|3426||||Paleoarchean|3525||||12000|15000|WA|Yes|30485|31853|||||Redefined as 4 subgroups: original Talga Talga and Salgash Subgroups, to which have been added the new Coongan Subgroup and Coonterunah Subgroup (downgraded from group status). The previously proposed Kelly Subgroup now upgraded to group status. Comprises greenschist-facies volcanic rocks and make up, to a large extent, the greenstone belt surrounding the Corunna Downs Granitoid Complex. East Pilbara Terrane.|Consists of dominantly volcanic and sedimentary rocks. Tholeiites, high-Mg basalts, andesite, Na-dacite, K-rhyolites, chert, minor banded iron formation; minor ultramafic rocks/schists.|basic volcanic rock|acid volcanic rock||N||08-JUN-23
Warrawoona Group - basalt|74254|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Warrawoona Group|19508|||Paleoarchean||||eruption|Paleoarchean||||||||No||||||||Basalt, komatiitic basalt; locally pillowed; locally carbonated or schistose; local peridotite, serpentinite; metamorphosed|basic volcanic rock|ultramafic igneous rock||N||17-JAN-23
Warrawoona Group - gabbro and dolerite|74269|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Warrawoona Group|19508|||Paleoarchean||||intrusion|Paleoarchean||||||||No||||||||Gabbro and dolerite, metamorphosed|basic intrusive rock|||Y||17-JAN-23
Warrawoona Group - metamorphosed mafic rocks|74473|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Warrawoona Group|19508|||Paleoarchean||||intrusion|Paleoarchean||||||||No||||||||Anorthositic metagabbro, fine to medium grained amphibolite, mafic hornfels, chlorite-tremolite(-quartz) schist, hornblende-plagioclase schist after basalt, high-Mg basalt and dolerite|metamorphosed basic igneous rock|||Y||17-JAN-23
Warrawoona Group - ultramafic and mafic rocks|74285|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|Warrawoona Group|19508|||Paleoarchean|||||Paleoarchean||||||||No||||||||Interlayered mafic and ultramafic schist, amphibolite, talc-serpentine-tremolite-carbonate rock, basalt, high-Mg basalt|metamorphosed basic igneous rock|metamorphosed ultramafic rock||N||17-JAN-23
Warri Warri Member|36897|||||Yes|Member, phase|Formal|Other new published name|Fully described|Hardey Formation|8075|||Archean|2760|10|isotopic, U/Pb-Pb/Pb ion probe|deposition|Archean|2760|10|isotopic, U/Pb-Pb/Pb ion probe|||||No|23746||||||Differerent unit to the Warrie Member of Jeerinah Formation.  Both units in Fortescue Group. Occurs only in Hardey Formation (or Koongaling Volcanics?), Gregory Range Inlier.||medium-coarse grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Warrie Member|29121|||||Yes|Member, phase|Formal|Variation of published name|Defined|Jeerinah Formation|8896|||Neoarchean||||deposition|Neoarchean||||||82||No|44504|44503|||||Defined 1966. Of Jeerinah Formation. Not used by Thorne & Trendall (2001), Bull 144, because the Warrie Shale Member and the Roy Hill Shale Member are difficult to distinguish in nothern Pilbara and are not recognised in the south.|Shale, chert (locally ferruginous), mudstone and dolomite.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Warriedar Suite|78997|Warriedar Group|19529|||Yes|Group, Suite|Formal|Variation of published name|Described|||Annean Supersuite|74813|Neoarchean|2793||isotopic, U/Pb-Pb/Pb ion probe||Mesoarchean|2801||isotopic, U/Pb-Pb/Pb ion probe|||||No|70226||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Warriedar Hsd, Ninghan1:100k sheet area. 29deg08'S 117deg11'E. Type area: Fields Find. Larger intrusions are located at the base of the Polelle Group with smaller ones throughout the Polelle Group.|Peridotite and pyroxenite, local cumulate textures, serpentinized; ultramafic schist; gabbro, dolerite, locally interlayered; weakly schistose metagabbro. All metamorphosed.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Warrigal Gneiss|36971|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2585||||Neoarchean|2758|||||||No|23486||||||Reserved as Warrigal Granite Gneiss. Deformation is said to be Paleoproterozoic.|Well foliated to banded granitic gneiss, biotite monzogranite.|high grade metamorphic rock|metamorphosed acid igneous rock||Y||17-JAN-23
Warrimbah Conglomerate|19532|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Miocene|13.5|||deposition|Miocene|17|||||10|WA|No|39796|44998|||||See also Lexicon.|Unconsolidated fluvial cobble and minor pebble conglomerate; brown clasts, and fossiliferous in places|siliciclastic sedimentary rock|||N||17-JAN-23
Warroo Hill Member|36896|||||Yes|Member, phase|Formal|Other new published name|Described|Hardey Formation|8075|||Archean||||deposition|Archean||||||1000||No|23745||||||Not to be confused with Warroo stratigraphic nomenclature in NSW.|Metamorphosed fine- to coarse-grained clastic rock, tuff, and mafic rock: metasandstone, metaconglomerate, metasiltstone, quartzite, quartz-mica schist, phyllite, slate, metadolomite, metabasalt and metabasaltic andesite with local amygdules.|metasedimentary rock|metamorphosed igneous rock||N||17-JAN-23
Warrulinya Suite|19542|||||Yes|Group, Suite|Formal|Other new published name|Described|||||Archean|||||Archean|3310|||||||No|41938|||||||||||Y||17-JAN-23
Warton Sandstone|19549|Warton Beds|19548|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Kimberley Group|9572|||Statherian|1704|7|isotopic, U/Pb-Pb/Pb ion probe|deposition|Statherian|1786|14||maximum depositional age|275|500||No|44366||||||Defn on Tech File E/52-2. Oldest unit in the Spider impact structure forming the central dome. Ages recorded: 1704+/-7Ma and 1786+/-14Ma. Max.depositional age 1806+/-28 Ma U/Pb SHRIMP. Kimberley Basin, North Australian Craton.|Massive to blocky, thin bedded, medium-grained quartz sandstone, commonly white to purple, and minor feldspathic sandstone; siltstone interbeds.|siliciclastic sedimentary rock|||N||17-JAN-23
Wartu Monzogranite|75244|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2643|6|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2643|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|66116||Mark Pawley (GSWA)|10-JUN-09|||For use on map sheet SH 51-3; nearest town is Cosmo Newbury. Located in northeast corner of the Yilgarn Craton. Intrudes the Mount Venn greenstone belt, cutting the solid-state foliation and in turn it is overprinted by late brittle deformation. As a result this pluton constrains the transition from ductile to brittle deformation in the NE Yilgarn Craton. Dated at 2643+/-6 Ma (GSWA SHRIMP age). To be published in several GSWA publications in near future, including 1:100K maps and geochronological reports.|Equigranular monzogranite intrusion; minor granite and granodiorite.|acid intrusive rock|||Y||17-JAN-23
Warubuyu Basalt|19550|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Mesoproterozoic||||eruption|Mesoproterozoic||||||||No|30944||||||Bentley Basin. RefID 67375, Musgrave Province notes (2011) suggests name should be changed to Warubuyu Formation (to reflect the existence of intercalated siliclastic rocks which can be found throughout the whole stratigraphic interval), but does not formally endorse any change.|Basalt and basaltic andesite, interlayered with volcanolithic mudstone, siltstone, sandstone, conglomerate, and laminated microbialite; local hyaloclastite; epidotized.|basic volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wataru Gneiss|19557|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Birksgate Complex|29906|||Mesoproterozoic|||||Mesoproterozoic||||||||No|31965|||||||Gneiss, granulitic, with hornblende, biotite, orthopyroxene, clinopyroxene|high grade metamorphic rock|||Y||17-JAN-23
Watch Point Formation|24081|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Sunbeam Group|33753|||Cryogenian||||deposition|Tonian||||||400|WA|No|43056|41768|I.R.Williams|05-AUG-86|||See also misspelt Watchpoint Formation.|Fine- to medium-grained sandstone, silty sandstone, and shale.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||03-APR-23
Waters Formation|31876|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Throssell Range Group|70719|||Cryogenian||||deposition|Cryogenian|||||100|350||No|43848||||||Used in the Rudall 1:250 000 sheet area. Of Yeneena Basin? Previously of Tarcunyah Group.|Shale, finely laminated and locally stromatolitic dolomite, upward-fining sandstone-siltstone-shale rhythmic units, and sulphide beds|fine grained siliciclastic rock|mineralisation||N||17-JAN-23
Wattagee Formation|74812|||||Yes|Formation, beds|Formal|Resvd name published|Described|Glen Group|74811|||Neoarchean|2719|||deposition|Neoarchean|2724|||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain. See also misspelling Watagee.|Ultramafic schist; pyroxene spinifex-textured basalt; komatiitic basalt, locally pillowed; dacite; quartz-sericite schist; light to dark-grey slate, highly fissile. All metamorphosed.|metamorphosed ultramafic rock|basic volcanic rock||N||07-JUN-23
Wattie Group|19609|||||Yes|Group, Suite|Formal|Other new published name|Defined|||||Calymmian|1570|||deposition|Statherian|1610|||||450|NT|No|32699|48943||||| Age: 1610-1570Ma.  Possibly correlated with Nathan Group. Micaceous siltstone, sandstone, minor dolostone in Auvergne area. Birrindudu basin.|Sandstone, siltstone, claystone, dolostone, chert, conglomerate.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wattle Creek Basalt|24086|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean||||eruption|Archean||||||||No|42533||Watkins K.P., A.H.Hickman, R.Davy|05-DEC-85||||Sequence of massive tholeiite; minor pillow lavas and pyroclastic rocks; silicified and epidotized. Intruded by monzogranite, with abundant microgranite and pegmatite veins near contact.|basic volcanic rock|||N||17-JAN-23
Weaber Group|19643|||||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Serpukhovian|||inferred, overlying unit|deposition|Tournaisian|||inferred, biostratigraphic correlation|||2400||No|44965|61542|||||Of Mory and Beere (1988). See also Lexicon. ?Defined 1966. Stratigraphy revised by Gorter et al (2005) - see APPEA Journal 45/1. Group may now be non-current?? But name used by NTGS in 2006 Auvergne map & 2013. Originally included Point Spring Sandstone as the topmost unit; since assigned to the Wadeye Group by Gorter et al. (2005). Latest Tournaisian to early Serpukhovian age.|Quartz sandstone, siltstone, shale, minor limestone and conglomerate. Shoreface, deltaic and fluvial deposits.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Weebo Granodiorite|29720|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Neoarchean|2658|7|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Neoarchean|2666|6||magmatic crystallisation||||No|43289||Westaway & Wyche S.|13-SEP-95|||DARLOT 1:100 000 sheet area, northern Goldfields.|Very coarse grained granodiorite.|acid intrusive rock|||Y|I-type|17-JAN-23
Weedarra Shale|19668|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Lyons Group|28702|||Sakmarian||||deposition|Sakmarian||||||||No|44344||||||See also Lexicon. Defn on Tech File G/50-1. Name obsolete?||siliciclastic sedimentary rock|||N||17-JAN-23
Weedong Sandstone|24088|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|40837||P.Lehmann|20-JAN-84|||||siliciclastic sedimentary rock|||N||17-JAN-23
Weedy Basalt|70699|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Cryogenian||||eruption|Cryogenian||||||||No|62453||||||||basic volcanic rock|||N||17-JAN-23
Weeli Wolli Formation|19674|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Hamersley Group|8005|||Siderian|2449|3|inferred, overlying unit|deposition|Siderian|2451||inferred||5|600|WA|No|44729|33544|||||Max Age: 2449 (+/-) 3 Ma ? Age probably from overlying Woongarra Rhyolite. Ages from Trendall et al (2004), RefID 60706.|Banded iron-formation (commonly jaspilitic), mudstone, siltstone; common interlayered metadoleritic sills.|non-carbonate chemical or biochemical sedimentary rock|basic intrusive rock||N||29-JUN-23
Weelumurra beds|69680|Weelumurra Beds|24089|||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||||Middle Miocene|||||Middle Miocene||||||34||No|61155||||||See also Weelumurra Beds. Overlain by gravelly conglomerate and calcrete correlated with Millstream Dolomite. Age relative to Robe Pisolite is unknown.|Dark grey pyritic lacustrine clay.|regolith|||N||17-JAN-23
Weerianna Basalt|78850|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Roebourne Group|25449|||Paleoarchean|3270||inferred, intrusive relationship|eruption|Paleoarchean|3330||inferred, underlying unit|||1000|WA|No|70775||Hickman, A.H., Smithies R.H. (GSWA)|07-APR-14|||Roebourne sheets 2356, SF50-3. Published in 'Hickman, AH 2016, Northwest Pilbara Craton: a record of 450 million years in the growth of Archean continental crust: Geological Survey of Western Australia, Report 160, 104p.'|Metamorphosed basalt, including fine-grained komatiitic basalt.|basic volcanic rock|metamorphosed basic igneous rock||N||17-JAN-23
Weiragoo Granite|31771|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2666|||||||No|43835|||||||Heterogeneous, porphyritic to even grained monzogranite with circa 2730 Ma zircon xenocrysts; in places numerous gneissic inclusions. Prograde amphibolite grade metamorphism.|acid intrusive rock|||Y||17-JAN-23
Welcome Well Formation|73395|Welcome Well Complex|19695|||Yes|Formation, beds|Formal|Resvd name published|Described|Minara Group|73397|||Neoarchean||||deposition|Neoarchean|2707|||||||No|65147||Groenewald, B. (GSWA)|08-JUN-07|||Age c.2704 (Barley et al 2002).|Coherent to autoclastic andesite to rhyolite, intercalated with andesitic conglomerate, sandstone and siltstone|metamorphosed intermediate igneous rock|metasedimentary siliciclastic rock||N||09-JUN-23
Weld Spring Member|40792|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Glenayle Dolerite|40821|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|50319||Pirajno, F. and Hocking, R.|16-APR-04|||Part of the Warakurna Large Igneous Province. Published on Glen Ayle 1:100K mapsheet.|Fine- to medium-grained dolerite with disseminated Fe-Ti oxides; minor sulfides and accessory apatite.|basic intrusive rock|||Y||17-JAN-23
Weldon Creek Lava member|34479|||||Yes|Member, phase|Informal|Other new published name|Briefly described|Koongie Park Formation|9793|||||||intrusion|||||||100||No|22754|||||||||||N||17-JAN-23
Wellesley Chert Member|24092|||||Yes|Member, phase|Formal|Unknown or process pending|Described|||||||||deposition|||||||||No|40938||J.A.Bunting|17-MAY-83||||||||N||17-JAN-23
Wells Formation|26208|Mount Wells Formation|22451|||Yes|Formation, beds|Formal|Other new published name|Defined|Saddleback Group|16497|||Archean|2650||isotopic, U/Pb-Pb/Pb ion probe|deposition|Archean|2670||isotopic, U/Pb-Pb/Pb ion probe||2000|5500|WA|No|33800|33800||||||Interdeveloped lavas (andestite, dacite, rhyodacite), tuffs, breccias, agglomerates and minor sediments, all variously deformed and metamorphosed.|intermediate volcanic rock|sedimentary rock||N||17-JAN-23
Wenmillia Formation|19735|Wenmillia Beds|19734|||Yes|Formation, beds|Formal|Unknown or process pending|Defined|||||Proterozoic||||deposition|Proterozoic||||||300|WA|No|32649|36293||||||Deformed, low-grade metasedimentary rocks. Siltstone, shale and basalt.|metasedimentary siliciclastic rock|basic volcanic rock||N||17-JAN-23
Werillup Formation|27611|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Plantagenet Group|15310|||Late Eocene|39.5|||deposition|Early Eocene|51.5|||||49|WA|No|71789|71789|||||The lower part of this unit has been renamed North Royal Formation. Werillup Formation now includes rocks previously included in upper Werillup Formation, Rollos Bore Formation and Wollubar Sandstone (RefID 24397, published 2003). See also misspelt Werrilup Formation, Werrillup Formation, Werilup Formation. May now [2008] be considered part of Eundynie Group.|Dark grey, siltstone, sandstone, claystone, minor brown coal (lignite, carbonaceous siltstone), limestone.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Wesley Yard Monzogranite|31786|Wesley Yard|29803|||Yes|Formation, beds|Formal|Resvd name published|Fully described|||Kevins Dam Suite|31898|Orosirian|1805|||intrusion|Orosirian|1835|||||||No|43853||||||Age updated by I.Sweet.|Massive, medium-coarse grained, porphyritic biotite monzogranite; minor granodiorite.|acid intrusive rock|||Y||17-JAN-23
West Angela Member|29987|West Angela Shale Member|19772|||Yes|Member, phase|Formal|Variation of published name|Fully described|Wittenoom Formation|20327|||Neoarchean|2590||inferred, lithostratigraphic correlation|deposition|Neoarchean|2596||inferred, underlying unit|||100||No|43063||||||Variation on West Angela Shale Member? Parent updated from Wittenoom Dolomite. Ages from Trendall et al (2004), RefID 60706.|Shale, dolomite and dolomitic argillite.|fine grained siliciclastic rock|carbonate sedimentary rock||N||16-JUN-23
West Creek Formation|24095|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Bangemall Supergroup|34951|||Proterozoic||||deposition|Proterozoic||||||||No|41144||J.H.Vogt|04-AUG-83|||Geological Province: Jillawarra Sub-basin.  Assumed to be part of Bangemall Supergoup, if still current. May be local name, equivalent in part to Kiangi Creek Formation, Edmund Group.|Lower coarse-grained sandstone and polymictic conglomerate; a thick turbidite unit of alternating sandstone, siltstone and minor conglomerate; a local dolostone and siltstone unit; an upper coarse-grained ferruginous sandstone, minor conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
West Hinckley Suite|80360|Giles Suite 2|80999|||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||Warakurna Supersuite|73257|Mesoproterozoic|1074|8|inferred, intrusive relationship||Mesoproterozoic|1078||inferred||||WA|No|73437||Howard, H.M. (GSWA)|20-DEC-17|||Previously Giles Suite 2, the second main phase of mafic magmatism within the old Giles Suite. To include the Murray Range Gabbro. See also GSWA ENS: Smithies, RH, Evins, PM and Howard, HM 2018, West Hinckley Suite (P_-WKH-og): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 13 August 2018, <www.dmp.wa.gov.au/ens>. - but note: text changes in progress. Published in GSWA Interpreted Bedrock Geology 2020 dataset.|Mafic intrusive rock; massive or weakly layered; locally mingled with leucogranite; Moderately to strongly foliated amphibolite after fine- to medium-grained gabbro; strongly epidotized and cut by abundant quartz and pegmatite veins; locally mylonitic.|basic intrusive rock|metamorphosed basic igneous rock||Y||17-JAN-23
West Kimberley Lamproite|19785|West Kimberley lamproite|19788|||Yes|Formation, beds|Formal|Unknown or process pending|Briefly described|||||||||eruption|||||||||No|40811|||||||||||Y||17-JAN-23
West Pilbara Superterrane - mylonitic rocks #84095|84095|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2760||||Mesoarchean|3200|||||||No|||||||Used in GSWA integrated basement geology: A-myy-PWP.|Mylonitic granitic, felsic and mafic volcanic, ultramafic, and sedimentary rocks.||||Y||
West River gneiss|36945|||||Yes|Formation, beds|Informal|Other new published name|Mentioned||||||||||||||||||No|23727||||||Mentioned|||||N||17-JAN-23
West Warrery Satellite Granodiorite|19792|West Warrery satellite granodiorite|19793|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||intrusion|||||||||No|38242||||||||acid intrusive rock|||Y||17-JAN-23
Western Creek Gabbro|19807|||||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||||||intrusion|||||||||No|42112||||||||basic intrusive rock|||Y||17-JAN-23
Western Desert Dyke Suite|75996|||||Yes|Group, Suite|Formal|Resvd name published|Briefly described|||||Tonian|976|3||intrusion|Tonian|976|3||||||No|69003||M. Wingate (GSWA)|29-JUN-11|||Roger Hocking (WA Strat Name Convenor) approved use of name [29-JUN-2011 email]. NNW-trending dolerite dyke swarm, dated at 976 Ma, intruding Proterozoic granite and volcanic rocks of the Warumpi Province of the west Arunta Orogen. Lithology: dolerite. Map sheet: Webb. Nearest Town: Kiwirrkurra. To be published: Aurore Joly, Michael Dentith, Alok Porwal, Catherine Spaggiari, Ian Tyler, T. Campbell McCuaig. An integrated geological and geophysical study of the West Arunta Orogen and its mineral prospectivity. GSWA report, publication expected Dec. 2011.|Dolerite|basic intrusive rock|||Y||17-JAN-23
Westonia Formation|26209|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Neogene||||deposition|Miocene|||||||WA|No|41199|41199||||||||||N||17-JAN-23
Westralia Sandstone|24096|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Collie Group|4345|||Artinskian||||deposition|Sakmarian||||||||No|42711|42711|Le Blanc Smith G.|02-MAY-91|||Mentioned in 94/27644. Described as Collie Subbasin, Southern Perth Basin (2008).|Predominantly sandstone with interbedded subordinate siltstone in coarsening-upward sequence.|siliciclastic sedimentary rock|||N||17-JAN-23
Whaleback Shale Member|27096|Mount Whaleback Shale Member|13211|||Yes|Member, phase|Formal|Variation of published name|Redefined|Brockman Iron Formation|2602|||Siderian|2461||inferred|deposition|Siderian|2464||inferred|||75|WA|No|71785|33544|||||See also name variations Mount Whaleback Shale, Whaleback Member, Mount Whaleback Shale Member, Mount Whaleback shale, Mount Whaleback Member and Whaleback Shale. Ages from Trendall et al (2004), RefID 60706.|Thin band of iron formation rocks with significant sheet-silicate content causing a shaly appearance.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
Whaling Cove basaltic sill|83639|||||Yes|Formation, beds|Informal|Other new published name|Briefly described||||||||||Stenian|1190||inferred, intrusive relationship|intrusion||||No|73480||||||Maximum crystallisation LA-ICPMS U-Pb zircon age 1444+/-7 Ma. Maximum age of ca 1190-1170 Ma constrained from Burnside Batholith migmatitic gneiss host rock, which is part of the Esperance Supersuite. This sub-horizontal and  N-NW trending sill also cuts older E-NE trending dykes.|Porphyritic ophitic basalt, metamorphosed.|basic volcanic rock|||Y||05-FEB-23
Wharton Sandstone|19862|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|38632||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Wheatbelt Dolerite|80597|Wheatbelt Dyke Suite|80104|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||Marnda Moorn Suite|80594|Mesoproterozoic|1205||inferred||Mesoproterozoic|1215||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||Kellerberrin, Perth, Moora 250k sheet areas. Dykes of a range of mafic compositions, trending east-northeast to northeast; intrude Archean units of the west-central Yilgarn Craton. Assigned to the Marnda Moorn Suite; inferred ages 1215¿1205 Ma. See also GSWA ENS: Wingate, MTD (partial report), Wheatbelt Dolerite (P_-MMwh-od): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and gabbro dykes.|basic intrusive rock|||N||17-JAN-23
Wheatbelt Dyke Suite|80104|Wheatbelt Suite|75381|||Yes|Group, Suite|Informal|Resvd name published|Mentioned|||Marnda Moorn Supersuite|75377|Ectasian|1205||inferred||Ectasian|1215||inferred|||||No|70826||||||Reserved name is preferred, but this name in GSWA's ENS system. To be replaced by Wheatbelt Dolerite.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Whim Creek Group|26211|||||Yes|Group, Suite|Formal|Other new published name|Defined|De Grey Supergroup|69685|||Mesoarchean|2970||inferred, overlying unit|deposition|Mesoarchean|3020|||||900|WA|Yes|30766|30766|Hickman, A.H.|23-JUN-75||01-APR-76|First comprised Warambie Basalt, Mons Cupri Volcanics, Constantine Sandstone and Mallina Formation (Fitton et al 1975); then Rushall Slate, Cistern Formation, Mons Cupri Volcanics (Smithies 1997); in 2002 comprised Mons Cupri Dacite, Red Hill Volcanics, Warambie Basalt. In 2010 comprises Warambie Basalt and Red Hill Volcanics.  Rushall Slate/Cistern Formation reclassified to Bookingarra Group.|Shale, siltstone, sandstone, basalt, high-Mg basalt, volcaniclastics, wacke, conglomerate, dacite, rhyolite, metamorphosed semi-pelite.|fine grained siliciclastic rock|igneous volcanic rock||N||17-JAN-23
Whimbrel Sandstone Member|77461|||||Yes|Member, phase|Informal|Other new published name|Mentioned|||||Triassic||||deposition|Triassic||||||||No|67370||||||Unit in Crane Formation? Diagram is not fully clear.||siliciclastic sedimentary rock|||N||17-JAN-23
Whitby Sandstone|19881|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Cardup Group|3601|||Neoproterozoic|||inferred|deposition|Neoproterozoic|||inferred||40||WA|No|30939|36293||||||Boulder to cobble conglomerate grading up into fine to coarse-grained sandstone or orthoquartzite.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
White Desert Member|78699|||||Yes|Member, phase|Formal|Variation of published name|Fully described|Tamala Limestone|17719|||Pleistocene|.487|.04|isotopic, U/Th/He|deposition|Pleistocene|.5|||||||No|69788||Lipar, M. (La Trobe University)|17-FEB-14|||Lithological Descriptor = aeolian calcarenite. Map Sheet = 1936. Nearest Town = Cervantes. Brief description = Fine to coarse grained well sorted aeolianite, yellow coloured, poorly to well cemented, and with distinctive cross-bedding. Mineralogy: carbonate, quartz, feldspar. Deposited in Marine Isotope Stage 13 or earlier. To be published = This year (2014) in Australian Journal of Earth Sciences|Consists of an eolian calcarenite/calcrete-microbialite/paleosol cycle.|carbonate sedimentary rock|sediment||N||17-JAN-23
White Flag Formation|19889|||||Yes|Formation, beds|Formal|Variation of published name|Described|Black Flag Group|28372|||Neoarchean|2675|6||deposition|Neoarchean|2813|3||||||No|42221|||||||Sedimentary rocks (coarse conglomerate and sandstone).|siliciclastic sedimentary rock|||N||17-JAN-23
White Hill Road Limestone Member|73572|White Hill Road Member|29484|||Yes|Member, phase|Formal|Variation of reserved name|Defined|Tims Thicket Limestone|73571|||Pleistocene||||deposition|Pleistocene||||||||No|63454||||||Originally reserved as White Hill Road Member (Semeniuk 1995) but defeined as White Hill Road Limestone Member (Semeniuk 1995). Type location is same as for parent formation. Forms the upper part of Tims Thicket Limestone.|Aeolianites; cross-laminated to structureless, fine and medium calcarenite.|carbonate sedimentary rock|||N||17-JAN-23
White Hope Basalt|77943|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Neoarchean||||eruption|Neoarchean|2692|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|70153||Sapkota, J. (GSWA Kalgoorlie)|01-JUL-13|||After White Hope Mine. Map Sheet: SH51-1,  Wildara 3041. Porphyritic to glomeroporphyritic basalt; fine to coarse plagioclase phenocrysts; local intense epidotization; metamorphosed. To be published = GSWA geological map and explanatory notes, 2013/2014.|Plagioclase-phyric basalt; metamorphosed.|metamorphosed basic igneous rock|||N||17-JAN-23
White Lake Metaconglomerate|29137|White Lake metaconglomerate|19896|||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|31042|||||||||||N||17-JAN-23
White Mountain Formation|19898|White Mountain Series""|19900|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Middle Miocene||||deposition|Early Miocene||||||120|WA|No|44317|41864|||||See also Lexicon.|Fossiliferous chert, siltstone, sandstone, marl.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
White Rock Leucogranite|78964|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|Lamboo Complex|10109|||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|44155||||||Different unit to White Rocks Lamproite.|Syenogranite, locally garnetiferous or biotite-rich; recrystallized and multiply deformed.|metamorphosed acid igneous rock|||Y||17-JAN-23
White Rocks Lamproite|19908|White Rocks lamproite|19910|||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||||||eruption|||||||||No|41158|||||||||||Y||17-JAN-23
Whitewater Volcanics|19928|||||Yes|Formation, beds|Formal|Other new published name|Defined|||Paperbark Supersuite|31788|Orosirian|1849|6|isotopic, U/Pb-Pb/Pb ion probe|eruption|Orosirian|1857|4|isotopic, U/Pb-Pb/Pb ion probe|||1200|WA|No|44317|45047|||||Variously considered as part of Lamboo Complex, Hooper Complex, Bow Supersuite. Part also mapped as Castlereagh Hill Porphyry. Intruded by Mount Christine Granitoid and Paperbark Supersuite. Closely related to Paperbark Supersuite. Indistinguishable crystallisation ages for Paperbark Supersuite, Whitewater Volcanics and related intrusions.|Thick-bedded, massive fine- to medium-grained quartz-feldspar rhyolite to dacite porphyry and welded ignimbrite; minor agglomerate, lapilli tuff, dacitic and rhyodacitic ash-flow tuff, and volcaniclastic sedimentary rock, minor siltstone interbeds.|acid volcanic rock|siliciclastic sedimentary rock||N||17-JAN-23
Whitewood Formation|26288|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|43056|41669|I.R.Williams|15-OCT-84|||Balfour Downs 1:250 000 sheet.|Sandstone, conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Whundo Group|31020|||||Yes|Group, Suite|Formal|Resvd name published|Fully described|||||Mesoarchean|3115|||eruption|Mesoarchean|3130||||10000|||No|22449||Williams I., Hickman A.|10-MAR-97|||Precambrian. West Pilbara.  Age: ~3.12Ga. Forms the Sholl Terrane of the West Pilbara Superterrane (per statement by M.Van Kranendonk/GSWA, Mar06). Removed from Pilbara Supergroup in 2006.|Basalt, dolerite, chert, ultramafic rocks, sedimentary rocks, rhyolite tuff, agglomerate, banded iron formation, andesite|acid volcanic rock|basic volcanic rock||N||29-JUN-23
Whyjabby Granodiorite|68515|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Maitland River Supersuite|68668|Archean|2994|2||intrusion|Archean|2994|2||||||No|64174|63441|Hickman, A.  (GSWA)|30-MAR-05|Hocking, R.|03-MAY-06|New name added in nomenclatural revision in GSWA Record 2006/15 (Van Kranendonk).  Also, for DAMPIER map sheet; nearest town Karratha.|Foliated, micrcocline-porphyritic hornblende granodiorite, containing layers and blocks of banded fine-grained tonalite gneiss, and banded biotite-rich gneiss; orbicular texture locally developed at Whyjabby Pool.|metamorphosed acid igneous rock|||Y||17-JAN-23
Wicherina Sandstone Member|31144|||||Yes|Member, phase|Formal|Other new published name|Described|Nangetty Formation|13780|||Asselian||||deposition|Asselian||||||250||No|43495||||||See also Wicherina Member.||siliciclastic sedimentary rock|||N||17-JAN-23
Wickham Formation|26213|||||Yes|Formation, beds|Formal|Other new published name|Defined|Wattie Group|19609|||Calymmian||||deposition|Statherian|1639|16|isotopic, U/Pb-Pb/Pb ion probe||315||NT|No|28255|48943|||||Unconformably overlies Killaloc Formation; progressively overlies younger formations of Limbunya Group from east to west.  As basal unit of Wattie Group, max age must match Wattie Group max age. Birrindudu Basin. Not to be confused with informal nomenclature for Wickham metamorphic rocks in Tasmania, or with WA's Wickham Pillow Basalt.|Massive quartz sandstone, micaceous siltstone and laminated and brecciated chert, basal conglomerate.|siliciclastic sedimentary rock|||N||17-JAN-23
Wickham Pillow Basalt|73852|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|Point Samson Group|73847|||Archean||||eruption|Archean||||||||No|24391||||||Different from NT's Wickham Formation.|Alterated pillowed metabasite, dolerite dykes.|basic volcanic rock|||N||17-JAN-23
Widgiemooltha Dolerite|80598|Widgiemooltha Supersuite|79233|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|||||Paleoproterozoic|2400||inferred||Paleoproterozoic|2420||inferred|||||No|||Wingate, M.T.D., Romano, S.S. (GSWA)|03-JUL-18|||Dolerite and gabbro; includes cumulate and granophyric differentiates.East-northeast-trending mafic to ultramafic dykes intruding Archean greenstone and granitic units of the Yilgarn Craton. See also GSWA ENS: Wingate, MTD and Romano, SS (partial report), Widgiemooltha Dolerite (P_-_ww-o): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 09 August 2018, <www.dmp.wa.gov.au/ens>. Published in GSWA IBG 2020.|Dolerite and gabbro; includes cumulate and granophyric differentiates.|basic intrusive rock|||Y||17-JAN-23
Wilagee intrusion|31795|Wilagee|29797|||Yes|Formation, beds|Informal|Resvd name published|Described|||Springvale Suite|78622|Orosirian||||intrusion|Orosirian||||||||No|43854||||||In the Western Zone of the Lamboo Complex. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008). Informal unit of Springvale Suite [advice from GSWA Dec 2013]|Layered mafic-ultramafic intrusion; gabbro, leucogabbro, leucogabbronorite, gabbronorite, anorthosite, minor troctolite; some olivine and/or chromitite-bearing; in rhythmic cycles; peridotite and troctolite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Wilcox Formation|29216|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Ypresian|50|||deposition|Ypresian|55|||||160|WA|No|40800|40800|R.M.Hocking, H.T.Moors|25-NOV-83|||||carbonate sedimentary rock|||N||17-JAN-23
Wild Dog Creek Gabbro|31058|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Sally Downs Supersuite|31785|Paleoproterozoic|1805|||intrusion|Paleoproterozoic|1835|||||||No|43854||Tyler I.|25-MAR-97|||McIntosh 1:100 000 map sheet, East Kimberley.|Magnetite gabbro and magnetite-quartz gabbronorite with veins of biotite norite; veins of biotite tonalite.|basic intrusive rock|||Y||17-JAN-23
Wildcat Gabbro|79819|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|Bounty Igneous Complex|78349|||Neoarchean|||inferred||Neoarchean|||inferred|||400||No|69586||||||Company name of Beardsmore (2002). Hosts significant gold mineralisation (eg Sunrise Birthday deposit, described in some detail). Crops out as dark brown ridges.|basal 100m conspicuous massive to strongly foliated, porphyritic pyroxenite; metamorphosed. Overlain by massive, even-grained gabbro.|basic intrusive rock|metamorphosed ultramafic rock||Y||17-JAN-23
Wilderness Basalt|81850|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Neoproterozoic|||inferred||Neoproterozoic|||inferred|||||No|||Haines, P. (GSWA)|28-FEB-20|||Named for Lake Wilderness. Occurs on the BULLEN 250k map sheet and the BAUMGARTEN 100k map sheet. Nearest town is Newman, 187km to WNW. No outcrop, but fully cored in mineral exploration drillhole 09THD033 where it is several hundred metres thick. At least 40 km2 in area (all under cover) based on geophysical data. Geochemically and lithologically distinct from other basalts and dolerites in the area (including proposed Bobbymia Basalt). To be published in GSWA publication [unspecified].|Fine-grained basalt flows and breccias interbedded with minor sedimentary rocks.|basic volcanic rock|||N||17-JAN-23
Wilga Coal Measures|20020|||||Yes|Formation, beds|Formal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|46849||||||||organic rich sedimentary rock|||N||17-JAN-23
Wilgie Mia Formation|74872|Wilgie Mia beds|20025|||Yes|Formation, beds|Formal|Resvd name published|Described|Polelle Group|74804|||Neoarchean|2735|||deposition|Neoarchean|2752|||||||No|64891||Van Kranendonk, M. (GSWA)|10-NOV-08|||For use in the complete revision of the Murchison domain lithostratigraphy; published in GSWA Annual Review 2007-2008. Age: c.2740Ma.  The Wilgie Mia beds of Elias (1982. Belele 1:250K map sheet, explanatory Notes) are included within this formation. Geological province: Murchison Domain.|Foliated banded iron-formation and felsic volcaniclastic rocks; weakly metamorphosed; schistose pelite and psammite.|metasedimentary non-carbonate chemical or biochemical rock|siliciclastic sedimentary rock||N||05-JUN-23
Wilina Granodiorite|39509|Wilina Pluton|78453|||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3310|8|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3323|9|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03||||Weakly foliated, light pink-grey, medium- to coarse-grained biotite granodiorite and trondhjemite.|acid intrusive rock|||Y||17-JAN-23
Wilki Formation|37330|Wilki Quartzite|27060|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Lamil Group|34421|||Cryogenian||||deposition|Cryogenian||||||1400||No|23414|||||||Fine- to medium-grained quartz sandstone; minor shale, laminated sandstone, and dolomite.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||23-MAR-23
Wilkinson Range beds|20060|Wilkinson Range Beds|26215|||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described|||||Cisuralian||||deposition|Cisuralian||||||||No|39340||||||Replaced by Paterson Formation in 1972. Subsequently revived by GSWA?|Unsorted tillite, conglomeratic sandstone, current-bedded sandstone, and claystone; boulders to 1.2 m, mainly of granite|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Willangie beds|20068|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|45153|||||||||||N||17-JAN-23
Willara Formation|20070|Thangoo Limestone|18031|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Darriwilian|||inferred, biostratigraphic correlation|deposition|Floian|470.18|.13|biozone||300|838|WA|No|36890|45153|||||Also interfingers with Goldwyer Formation. Fossiliferous. Max thickness in Nicolay 1.|An open platform facies carbonate sequence with minor sandstone interbeds.Bioturbated carbonate and mudstone deposits; richly fossiliferous.|carbonate sedimentary rock|fine grained siliciclastic rock||N||26-JUL-23
Willaraddie Formation|20073|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Famennian||||deposition|Famennian||||||294|WA|No|44537|45015|||||See also Lexicon. Max. thickness: >3000ft.|Quartzwacke, siltstone, quartz sandstone and conglomerate; poorly sorted.|siliciclastic sedimentary rock|||N||17-JAN-23
Willaraddie Formation, Munabia Sandstone, Gneudna Formation, Nannyarra Sandstone|74490|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Middle Devonian||||deposition|Lower Devonian||||||||No|||||||Group erected for mapping convenience only 1:1 M Geological Map of Australia|Sandstone, siltstone, conglomerate, limestone, minor dolomite; fossiliferous|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Willespie Formation|34562|Willespie|23207|||Yes|Formation, beds|Formal|Resvd name published|Defined|Sue Group|34554|||Wuchiapingian||||deposition|Capitanian||||||747||No|22820|22820|||||Vasse River Coalfield, Perth Basin. Max. thickness: >747m. See also misspelled Williespe Formation.|Poorly sorted feldspathic sandstone, with subordinate conglomerate, siltstone, shale, and sporadic thin, lenticular sub-bituminous coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Williambury Formation|20081|Williambury Sandstone""|20082|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Tournaisian||||||338|WA|No|44537|45015|||||See also Lexicon. max. thickness: 1100ft.|Quartzwacke, conglomerate and pebbly quartzwacke, claystone; poorly sorted.|siliciclastic sedimentary rock|||N||17-JAN-23
Williamstown Dolerite|20090|||||Yes|Formation, beds|Formal|Other new published name|Described|Kalgoorlie Group|26647|||Archean||||intrusion|Archean|2696|5|isotopic, U/Pb-Pb/Pb ion probe|||350|WA|Yes|68217|||||||Differentiated sill: basal pyroxenite to gabbro and quartz-bearing gabbro; minor granophyric phases in the upper section; metamorphosed.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||17-JAN-23
Willie Creek Calcarenite|74629|Willie Creek|23209|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Holocene||||deposition|Holocene||||||5|WA|Yes|64449|64449|V. Semeniuk||Hocking, R.|29-JUL-08|PUBLICATION: Semeniuk, V., 2008, Journal of the Royal Society of Western Australia Volume 91 Part 1 (Supplement): 53-148. Radiocarbon dating of shells within the Formation places it in the Holocene, viz., 3060 +/- 600 yrs BP and 6910 +/-180 yrs BP. Originally reserved as 'Willie Creek'. Canning Region, but not really Canning Basin.|A fine to medium to coarse sand-sized bioclastic and quartzose calcarenite, with layers of shells.|sedimentary rock|||N||17-JAN-23
Willy Willy Formation|37494|||||Yes|Formation, beds|Formal|Resvd name published|Described|Scorpion Group|16679|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|50195||Hocking, R.|12-SEP-02|||Included in the Scorpion Group on the Nabberru 1:250 000 geological map sheet.  Geological Province: Scorpion Basin.|Interbedded stromatolitic dolomite, siltstone, and sandstone; commonly contorted bedding, formerly evaporitic|carbonate sedimentary rock|fine grained siliciclastic rock||N||09-JUN-23
Wilson Bluff Limestone|20155|Wilson's Bluff Limestone|38723|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Late Eocene|37|||deposition|Lutetian|42|||||335|SA|No|40421|32552|||||Previously considered part of the Eucla Group.|Wackestone, white to grey; skeletal mudstone; rudstone and minor packstone.  Locally laminations and scour channels, infilled with coarser material. Some glauconite.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Wilson Cliffs Sandstone|27616|||||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Middle Ordovician|||biozone|deposition|Lower Ordovician|||biozone|||654|WA|No|35119||||||Wilson Cliffs Sandstone, based on biostratigraphy is a proximal equivalent to the entire Nambeet Formation.[advice from L.Normore GSWA 7-AUG-2020]. Common conodonts suggest Early Ordovician age. Max thickness penetrated in Wilson Cliffs 1.|Pale grey, very fine- to fine- (rarely medium-) grained quartz sandstone with variable proportions of interbedded medium to dark grey siltstone. Common shelly fossils; conodonts.|siliciclastic sedimentary rock|||N||26-JUL-23
Wilson Creek intrusion|77786|||||Yes|Formation, beds|Informal|Variation of published name|Briefly described|||Sally Malay Suite|78623|Paleoproterozoic|||||Paleoproterozoic|1847|3|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age||||No|60498||||||Not same unit as Wilson Well Gneiss. Informal unit of Sally Malay Suite [advice from GSWA Dec 2013]. Use of the term "Intrusion" in stratigraphic names is discouraged. Use of the stratigraphic term "Intrusion" is to remain in use in the Pilbara region only (per Conveners' agreement, AESC Perth 2008).|Cumulates include melatroctolites to plagioclase peridotites with coarse cumulus olivine.|ultramafic intrusive rock|basic intrusive rock||Y||17-JAN-23
Wilson Well Gneiss|33446|Wilson Well suite|70642|||Yes|Formation, beds|Formal|Resvd name published|Described|||Tambina Supersuite|68742|Paleoarchean|3420||||Paleoarchean|3420|||||||No|23416||VanKranendonk M.|19-JAN-99|||North Shaw 1: 100 000 sheet area, east Pilbara.  In Carlindi Granitoid Complex area. Not the same unit as informal Wison Creek intrusion.|Heterogeneous, migmatic tonalitic orthogneiss; minor schlieric hornblende granodiorite.|metamorphosed acid igneous rock|acid intrusive rock||Y||17-JAN-23
Wilsons Yard|39558|||||Yes|Formation, beds|Reserved|Reserved|Reserved||||||||||||||||||No|||Semeniuk, V.|30-OCT-03|||Canning Basin. Probably Holocene unit, so probably Canning Region, but not Canning Basin.|||||N||17-JAN-23
Wilthorpe Formation|30236|Wilthorpe Conglomerate|24576|||Yes|Formation, beds|Formal|Variation of published name|Redefined|Padbury Group|27093|||Orosirian|1800||inferred|deposition|Orosirian|1996|35|isotopic, U/Pb-Pb/Pb ion probe|||1300||No|23748|49896|Occhipinti S.|02-APR-96|||Redefined 1998. Has close genetic relationship with Labouchere Fm of which it was then interpreted as the Wilthorpe Member (Windh 1992). Upgraded due to distinctive lithology and erosional contact with Labouchere Fm. Overthrust by Narryer Gneiss Complex. maximum age of 1996 Ma is from detrital zircons.|Conglomerate with sandstone matrix, sandstone, siltstone, commonly graded; chert, chlorite rock, metasiltstone and phyllite|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Wiluna Hardpan|26220|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Quaternary|2||||Middle Miocene|14|||||10|WA|No|29770|29770|||||Of Bettany and Churchwand (1974).|||||N||17-JAN-23
Winburn Granite|20191|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|||Giles Suite|74611|Stenian|1055|10||intrusion|Stenian|1077|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|30385|||||||Granite, granophyre, marginal porphyritic granophyre and aplite also forms apophyses into Palgrave Volcanic Association rocks and into the Pussy Cat Group|acid intrusive rock|||Y||17-JAN-23
Windalia Radiolarite|20198|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Winning Group|20259|||Albian|110|||deposition|Barremian||||||123|WA|No|44537|48861|||||See also Lexicon. Different unit from Windalia Sand Member.|Radiolarian siltstone, sandy radiolarite and chert; variably porcellanised.|non-carbonate chemical or biochemical sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Windalia Sand Member|20202|Windalia sand member|20209|||Yes|Member, phase|Invalid|Other new published name|Fully described|Muderong Shale|13315|||Aptian||||deposition|Barremian||||||||No|30304||||||Invalid name (Windalia Radiolarite is older), but entrenched in industry and literature.|Sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Windaning Formation|24111|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Archean|2703|10|isotopic, U/Pb-Pb/Pb ion probe|deposition|Archean|2808|5||||1000||No|42533||Watkins K.|18-AUG-87|||See variation: Windanning Formation.|Regionally extensive jaspilitic BIF interlayered with volcaniclastic sediments, felsic tuff and minor volcanic rocks.|non-carbonate chemical or biochemical sedimentary rock|acid volcanic rock||N||17-JAN-23
Windidda Member|40798|Windidda Formation|20221|||Yes|Member, phase|Formal|Variation of published name|Described|Frere Formation|6902|||Paleoproterozoic||||deposition|Paleoproterozoic||||||600||No|50195||||||See Nabberru 1:250 000 geological map sheet.|Stromatolitic carbonate limestone, shale, conglomerate, jasper, and peloidal jasper.|carbonate sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Windimurra Igneous Complex|74875|Windimurra Complex|27936|||Yes|Formation, beds|Formal|Variation of published name|Described|||Meeline Suite|74822|Neoarchean|2780|||intrusion|Mesoarchean|2813|3|isotopic, Sm/Nd|||11000||No|64891||Williams, I.R., revised Van Kranendonk, M. 2008|10-NOV-08|||Geological province: Murchison Domain.|Metagabbro and metaleucogabbro, grades into metagabbronorite, locally schistose and sheared, with abundant metagranite, aplite and granophyre intrusive sheets. Magnetitite layers <1m thick in magnetite-rich gabbro; metamorphosed. Some ultramafic rocks.|metamorphosed basic igneous rock|metamorphosed ultramafic rock||Y||09-JUN-23
Windjana Limestone|20226|||||Yes|Formation, beds|Formal|Variation of reserved name|Redefined|||||Famennian||||deposition|Famennian|||||||WA|No|44366|45153||||||Massive to crudely bedded cyanobacterial and minor stromatoporoid reef limestone with contemporaneous deposition of microcrystalline calcite|carbonate sedimentary rock|||N||17-JAN-23
Windoo Sandstone|30320|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Lower Ordovician||||deposition|Late Cambrian||||||50|WA|Yes|43302|23621|Blake D.H.|21-JUN-96|Hocking, R.|22-APR-99|East Kimberley.  Replaces parts of the Gardiner beds on Gordon Downs 250K.  Note: Extensive Gardiner still exists in NT and other parts of WA.|Quartz sandstone, minor mudstone, dolomite, stromatolitic chert|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Windplain Group|40890|Windplain Subgroup|29875|||Yes|Group, Suite|Formal|Variation of published name|Described|||||Paleoproterozoic|2173|64|isotopic, Pb/Pb isochron age|deposition|Paleoproterozoic|2258|180|isotopic, Pb/Pb isochron age|||||No|24535||||||Of Pirajno (2004) as advised by R. Hocking (email 28/4/04). PP. Both dates from Bubble Well Member, Juderina Formation.|A succession of graphitic shales, carbonaceous siltstones and sandstones, stromatolitic dolomites, and mafic rocks.|siliciclastic sedimentary rock|carbonate sedimentary rock|passive margin|N||17-JAN-23
Winemaya Quartzite|24577|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Coomberdale Subgroup|4593|||Neoproterozoic|||||Mesoproterozoic|||||||WA|Yes|36872|36293|P.E.Playford, G.Low, D.Lowry|01-MAY-74|WA SNSC|05-JAN-75|Card. Published according to DL1980.|||||N||17-JAN-23
Winifred Formation|27255|||||Yes|Formation, beds|Informal|Resvd name published|Defined|Grant Group|7696|||Sakmarian|||biozone|deposition|Sakmarian|||inferred, biostratigraphic correlation|||278|WA|Yes|42613|42613|Towner R.R., Crowe R.W.A.|24-MAY-76|WA SNSC|31-AUG-77|Type section east of Lake Winifred. Part of Grant Group. N.B. Tentative ages, awaiting further palynology work (2008), on relevant drill core. Fitzroy Trough area. Only differentiated in the Gregory Sub-basin. Difficult to correlate in the subsurface. Proposed  to be reduced to informal status by Backhouse and Mory (2020) GSWA Report 207.|Shale, carbonaceous, pyritic;  siltstone, minor limestone, local fine sandstone. Fossil assemblage includes palynomorphs.|fine grained siliciclastic rock|carbonate sedimentary rock||N||17-JAN-23
Winnama Formation|30155|Olympio Formation|14567|||Yes|Formation, beds|Formal|Resvd name published|Described|Lamboo Complex|10109|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|43855||Thorne A.M.|14-MAR-96|||Turkey Creek 1:100 000 sheet area (sheet 4563, east Kimberley).|Metamorphosed greywacke, lithic sandstone, siltstone, mudstone, basalt, dolerite; carbonate rocks including calcareous siltstone and sandstone|metasedimentary rock|metamorphosed basic igneous rock||N||17-JAN-23
Winnecke Granophyre|20256|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||Birthday Suite|38833|Orosirian|1802|5|isotopic, Rb/Sr|intrusion|Orosirian|1815|5|isotopic, U/Pb-Pb/Pb ion probe||||NT|No|44965|45140|||||Tanami Province.  See also "Winnecke Granophyre". Name still in use 2007. Intrudes Ware Group. See also Winnecke Monzogranite. Variably assigned to the Birthday Suite (2007), Granites Supersuite (obsolete), or Winnecke Suite (2001, superseded by Birthday Suite).|Biotite-bearing syenogranite, monzogranite, including minor quartz-feldspar porphyry, quartz-phyric rhyolite.|acid intrusive rock|||Y||17-JAN-23
Winnemia Sandstone Member|30357|Moogooloo Sandstone|12179|||Yes|Member, phase|Formal|Resvd name published|Fully described|Callytharra Formation|26448|||Artinskian|||inferred, overlying unit|deposition|Sakmarian|||inferred|||100|WA|No|72910||Mory A.|08-AUG-96|||Of Mory & Backhouse 1997 GSWA Report 51, p21. Named after Winnemia Pool on the Gascoyne River straddling the Kennedy Range and Wooramel 250K map sheets. See also Winnemia Sandstone, Winnamea Sandstone. Also refered to as Winnamea Sandstone Member, Winnemea Sandstone, Winnemea Sandstone Member.|Massive fine to medium-grained sandstone with rare bioturbation.|medium-coarse grained siliciclastic rock|||N||17-JAN-23
Winning Group|20259|Winning Series""|20261|||Yes|Group, Suite|Formal|Variation of published name|Fully described|||||Santonian|||inferred, biostratigraphic correlation|deposition|Valanginian|||inferred, biostratigraphic correlation|||600||No|44537||||||See also Lexicon. Previously wrongly stated to be in South Australia as well as WA [CEB 29-MAR-2010]|Shale, siltstone, marl and basal sandstone; commonly glauconitic; radiolarian siltstone in central part.|fine grained siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Wirara Formation|20285|||||Yes|Formation, beds|Formal|Unknown or process pending|Defined|Kuniandi Group|25981|||Ediacaran||||deposition|Cryogenian|||||||WA|No|44397|48927|||||Age: c.610Ma. In the Louisa Basin.|Green to grey fissile to thinly flaggy laminated shale and siltstone with pyrite in places, purple siltstone, and green and purple sandstone interbeds|fine grained siliciclastic rock|||N||17-JAN-23
Wirku Metamorphics|74660|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|||||Ectasian|1270|||deposition|Ectasian|1340|||||||No|65135||Smithies, H. (GSWA)|01-SEP-08|Hocking, R.|03-SEP-08|For use in mapping Musgrave Complex area rocks by GSWA. Approved by R.Hocking (GSWA) Sept2008. West Musgrave Complex. Comprises much of the basement.|Undivided, weakly to strongly banded gneiss; typically quartzofeldspathic but includes amphibolitic rocks; mostly of sedimentary or volcanosedimentary protolith but possibly includes felsic to mafic intrusive protoliths.|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
Wirraway Formation|20298|Wirraway formation|20299|||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Quaternary||||deposition|Cenozoic|||||||WA|No|41199|41199||||||||||N||17-JAN-23
Wirrildar beds|20307|Wirrildar Beds|20303|||Yes|Formation, beds|Informal|Variation of published name|Fully described|Marla Group|28212|||Cambrian||||deposition|Cambrian||||||||No|31969||||||Used in South Australia, and WA in 2015.|Fine-grained micaceous sandstone and dolomite, with basal arkosic sandstone; fines and becomes more calcareous upwards.|medium-coarse grained siliciclastic rock|carbonate sedimentary rock||N||23-MAR-23
Withnell Formation|24115|||||Yes|Formation, beds|Formal|Other new published name|Defined|||||Maastrichtian||||deposition|Campanian|||||||WA|No|40800|40800|R.M.Hocking, H.T.Moors|23-MAY-83|||Should not have been reserved,16/9/83-83/643. Published 24/10/84. Age: >75->65Ma [in 2001].|||||N||17-JAN-23
Wittecarra Sandstone|20324|Wittecarra Formation|20323|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Triassic||||deposition|Changhsingian||||||9||No|36890||||||Also supersedes Wittecarra Beds. See also Wittecarra Sandstone Member.|Basal conglomerate, then silty sandstone and siltstone, sandstone, conglomerate, and capped by sandstone with probable plant rootlets.|siliciclastic sedimentary rock|||N||17-JAN-23
Wittenoom Formation|20327|Wittenoom Dolomite|26226|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Hamersley Group|8005|||Neoarchean|2506||inferred, lithostratigraphic correlation|deposition|Neoarchean|2596||inferred, underlying unit|||700||No|41622||||||Max Age: 2561 (+/-) 8 Ma. Ages from Trendall et al (2004), RefID 60706.|Thinly bedded dolomite and dolomitic shale, with minor black chert, shale, banded iron formation and sandstone|carbonate sedimentary rock|sedimentary rock||N||09-JUN-23
Woblegun Formation|24116|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Manganese Group|11171|||Mesoproterozoic||||deposition|Mesoproterozoic|||||300||WA|No|43056|41669|I.R.Williams|31-JAN-85|||Balfour Downs 1:250 000 sheet. In Collier Basin.|Interbedded shale, siltstone, sandstone and conglomerate; local dolostone and stromatolitic dolostone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Wodgina Hills quartzite|20341|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|37539|||||||||||N||17-JAN-23
Wogala Suite|74839|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Bald Rock Supersuite|74836|Neoarchean||||intrusion|Neoarchean|2606|5||||||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Geological province: Murchison Domain.|Fluorite-bearing alkali granite; post-tectonic. Monzogranite, muscovite-rich granite and muscovite-bearing pegmatite; all metamorphosed.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Wogatti Sandstone|20348|||||Yes|Formation, beds|Formal|Unknown or process pending|Fully described|Winning Group|20259|||Hauterivian|||inferred|deposition|Tithonian|||inferred|deposition||107||No|45015||||||See also Lexicon.  See also Wogalli Sandstone.||siliciclastic sedimentary rock|||N||17-JAN-23
Wolline Monzogranite|38599|||||Yes|Formation, beds|Formal|Other new published name|Defined|Muccan Granitoid Complex|36886|Cleland Supersuite|68665|Paleoarchean|3244|3||intrusion|Paleoarchean|3252|3||||||No|44229|60429|||||Within the Muccan Granitoid Complex.|Porphyritic to seriate monzogranite; grades to syenogranite; pink-grey, medium- to coarse-grained; local flow-banding and igneous mineral alignment, pegmatite banding, or other foliation with inclusions of schleric metatonalite.|acid intrusive rock|||Y||17-JAN-23
Wombarella Quartz Gabbro|20388|||||Yes|Formation, beds|Formal|Other new published name|Described|||Paperbark Supersuite|31788|Orosirian|1850|||intrusion|Orosirian|1865|||||||No|30525|||||||Medium to fine grained biotite-pyroxene gabbro, quartz gabbro and quartz norite with some recrystallisation in places|basic intrusive rock|||Y||17-JAN-23
Wombola Dolerite|83902|||||Yes|Formation, beds|Informal|Other new published name|Mentioned|||||Archean|||||Archean||||||||No|70087|||||||A ~150m thick mineralised sill; made up of amphibole-quartz-plagioclase-biotite. Displays boudinage of mineral grains and clusters.|basic intrusive rock|||Y||09-AUG-23
Wonangara Member|80380|||||Yes|Member, phase|Formal|Resvd name published|Defined|Kazput Formation|22076|||Rhyacian|2208||inferred, intrusive relationship||Siderian|2340|22|inferred, underlying unit||100|500|WA|Yes|72712||Martin, D. (GSWA)|18-JAN-18|||Hardey 2252, Wyloo SF50-10. A newly recognised glacial diamictite unit within the Kazput Formation of the Turee Creek Group. Ongoing formal naming of glacial diamictite horizons within the Turee Creek Group will assist description and global correlation with Huronian diamictites.To be published: GSWA Report 203|Mainly planar-laminated siltstone with minor interbedded fine-grained sandstone, commonly with hummocky and swaley cross-lamination. Includes matrix supported conglomerate with a muddy sandstone matrix (glacial diamictite),|sedimentary rock|||N||17-JAN-23
Wondoan Hill Formation|20428|||||Yes|Formation, beds|Formal|Other new published name|Defined|Tijunna Group|35323|||Mesoproterozoic||||deposition|Mesoproterozoic|||||30|145|NT|No|28255|70968|||||Previously included in the Victoria River Group of Traves (1955) and Coolibah Formation of Laing & Allen (1956). Birindudu Basin. See also the misspelt Wandoan Hill Formation, Wondoan Hills Formation. Type area is no longer accessible [noted in 2016].|Glauconitic quartz sandstone, claystone, siltstone, shale, mudstone; minor dolostone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||07-SEP-23
Wongan Hills Formation|83578|||||Yes|Formation, beds|Reserved|Reserved|Reserved|Southern Cross Supergroup|83577|||Mesoarchean|||inferred||Mesoarchean|||inferred|||||No|||Ivanic, T. (GSWA)|15-SEP-22||||||||N||17-JAN-23
Wongarlong Formation|34888|||||Yes|Formation, beds|Formal|Variation of reserved name|Defined|Tarcunyah Group|31872|||Neoproterozoic||||deposition|Neoproterozoic|840||||1200|||No|23729|23590|||||Variation of reserved name Wongarling? Age said to be : <840 Ma (poor age constraints) in 1999.|Fine to coarse sandstone, quartz sandstone, and minor siltstone, silty shale and shale; local altered mafic pillow lava|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Wongawol Formation|26231|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Miningarra Group|79473|||Paleoproterozoic||||deposition|Paleoproterozoic||||||2000|WA|No|30010|40938|||||Formerly within the Earaheedy Group.|Very fine grained arkosic sandstone and shale; mudstone, claystone, local conglomerate, intraclastic breccia and carbonate-glauconite breccia; glacigene to fluvioglacial.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Wongi Basalt|24120|||||Yes|Formation, beds|Formal|Resvd name published|Described|Vetters Subgroup|79360|||Archean||||eruption|Archean||||||2000||No|42221||W.K.Witt|18-FEB-88|||Previously considered part of the Pole Group. Now (2016) reassigned into the Vetters Subgroup, Kalgoorlie Group. The Wongi Basalt lies within the Davyhurst and Bardoc 1:100K map sheets areas.|Komatiitic basalt; variolitic to pyroxene spinifex-textured; locally pillowed; metamorphosed.|ultramafic volcanic rock|||N||17-JAN-23
Wongida Creek Granodiorite|20450|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||intrusion|||||||||No|72758||||||Ashburton Basin?||acid intrusive rock|||Y||17-JAN-23
Wonnerup Member|40569|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Lesueur Sandstone|25993|||Carnian||||deposition|Anisian||||||||No|50107||||||Geological Province: Southern Perth Basin.|Homogeneous sandstone, feldspathic, poorly sorted, coarse to very coarse-grained, unconsolidated and light grey to colourless.|siliciclastic sedimentary rock|||N||17-JAN-23
Wonyulgunna Sandstone|27257|||||Yes|Formation, beds|Formal|Other new published name|Defined|Scorpion Group|16679|||Mesoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|33849|40089|||||Formerly included in the Collier Group, included in the Scorpion Group on the Nabberru 1:250 000 geological map sheet (2003).|Coarse to medium grained white quartz sandstone, siltstone with numerous pyrite pseudomorphs, shale and minor conglomerate; rippled and cross bedded. Minor evaporite.|siliciclastic sedimentary rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Woodada Formation|26232|||||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Anisian|243.6||inferred, biostratigraphic correlation|deposition|Olenekian|248.5||inferred, biostratigraphic correlation||230|715|WA|No|44307|36293|||||Defn on Tech File SH/50-5.  In the northern part of the Perth Basin only. Includes volcanics dated 246 +/-7 Ma,but unclear what part of the Wodada Formation they came from.|Fine- to medium-grained sandstone, interbedded with laminated siltstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Woodada Sequence|79249|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Upper Triassic|||||Lower Triassic||||||||No|70097||||||Offshore Perth Basin. See also Woodada Formation.|||||N||17-JAN-23
Woodbine Group|20481|||||Yes|Group, Suite|Formal|Variation of published name|Described|||||Pleistocene|||||Paleocene||||||800||No|42056||||||Replaced by Brown Gannet Limestone? NO this Group is younger than Brown Gannet Lst. Maybe reinterp in one well? See Woodbine Beds. [CEBJun95]. Still current as at 2013.|Coarse, quartzitic sandstones with claystone interbeds, and minor coal and dolomite overlain by calcareous claystone and marl with calcarenite interbeds.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Woodbrook Formation|36851|Woodbrook Group|31022|||Yes|Formation, beds|Formal|Resvd name published|Described|Whundo Group|31020|||Mesoarchean|3117|3||deposition|Mesoarchean|3118|2||||1000||No|23794||||||Age: <3.10Ga. In the Pilbara Craton. Within the Pilbara Supergroup in the West Pilbara Superterrane.|Consists of metamorphosed rhyolite tuff and agglomerate, and smaller amounts of metabasalt; rare units of carbonate-rich, ferruginous chert and  BIF.|metamorphosed acid igneous rock|metamorphosed basic igneous rock||N||17-JAN-23
Wooden Duck Member|20494|||||Yes|Member, phase|Formal|Other new published name|Defined|Mainoru Formation|11034|||Calymmian|1493|4|inferred, overlying unit|deposition|Calymmian|1492|4|isotopic, U/Pb-Pb/Pb ion probe||56|350|NT|No|44434|23937|||||Identified as the wood sequence by Abbott and Sweet (2000) in their sequence stratigraphy interpretation of the Roper Group. Age: >1493+/-4 Ma. Within the Roper Group. Can be difficult to distinguish from Showell Member (Smith, 2016).|Dominantly mudstone interbedded with very fine- to rarely medium-grained, commonly micaceous and glauconitic sandstone that increases in frequency up-section. Rare limestone or dolostone in middle part.conitic sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Woodiana Member|36834|Woodiana Sandstone Member|20507|||Yes|Member, phase|Formal|Variation of published name|Fully described|Jeerinah Formation|8896|||Archean||||deposition|Archean|2717|||||60||No|62130||||||Stromatolitic.|Comprises quartz rich sandstone interbedded with subordinate chert, chert breccia, mudstone and volcanogenic lithic sandstone.|medium-coarse grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
Woodlands Arenite Member|20509|||||Yes|Member, phase|Formal|Other new published name|Described|Gap Well Formation|23608|||Proterozoic||||deposition|Proterozoic||||||250||No|41144||||||See also Woodlands Member (WA).|||||N||17-JAN-23
Woodlands Member (WA)|76752|Woodlands Arenite Member|20509|||Yes|Member, phase|Informal|Variation of published name|Briefly described|Irregully Formation|8786|||Mesoproterozoic||||deposition|Paleoproterozoic||||||||No|67245||||||Edmund Basin. Shown as member of Irregully Formation. May be a misspelling of Woodlands Arenite Member. [Woodlands Arenite Member was/is of the Gap Well Formation]. Age <1620 Ma.|Thick-bedded quartz sandstone; minor siltstone.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
Woodleigh Formation|20522|Woodleigh Beds|20521|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Upper Jurassic||||deposition|Lower Jurassic||||||298||No|40617||||||Overlies the centre part of the Woodleigh impact structure.|Lacustrine deposits: laminated siltstone and mudstone interbedded with fine-grained silty sandstone.|fine grained siliciclastic rock|||N||17-JAN-23
Woodline Formation|68661|Woodline beds|29169|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Statherian|1620|100|isotopic, Rb/Sr|deposition|Statherian|1737|28|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|250|||No|24165||||||Age: 1620+/-100Ma (Rb-Sr ; Turek 1966 IN Jones, S. A. - 2003). Maximum deposition age (detrital zircon) = 1737 Ma. May be a lateral equivalent of Mount Barren Group.|Quartz arenite, quartz conglomerate, argillite, mudstone; weakly deformed, with gentle upright folding and warping; weakly to moderately developed subvertical cleavage.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Woodrarrung Sandstone|25647|Woodrarrung Formation|27624|||Yes|Formation, beds|Formal|Variation of published name|Defined|Badgeradda Group|863|||Neoproterozoic||||deposition|Mesoproterozoic|||||||WA|No|48823|45015|||||See also Lexicon. Defn on Tech File G/50-14. Preferred over Woodrarrung Formation (directive from R.Hocking/GSWA Mar.06). Max. thickness: ~3700ft.|Cross-bedded coarse feldspathic quartz sandstone, finer and kaolinitic in upper section. Thinly bedded feldspathic and quartzose sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
Woodstock Monzogranite|36960|||||Yes|Formation, beds|Formal|Variation of published name|Described|||Sisters Supersuite|68741|Mesoarchean|2927|||intrusion|Mesoarchean|2933|3||||||No|61252||||||Age: c. 2927 Ma Part of Yule Granitoid Complex Replaces Woodstock Adamellite?|Equigranular to K-feldspar-phyric biotite monzogranite; weakly to moderately foliated; locally abundant pegmatite and granite dykes; magnetite-bearing leucogranite pods; tonalitic orthogneiss inclusions; weakly metamorphosed and schlieric|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
Woodward Dolerite|27939|McClintock Greenstones|11531|||Yes|Formation, beds|Formal|Other new published name|Fully described|||||Orosirian|1847|||intrusion|Orosirian|1910|||||200||No|44317||||||Possibly correlates with parts of Halls Creek Group. Formerly grouped with Bow River Batholith into Lamboo Complex. Intruded Ding Dong Downs Volcanics and Halls Creek Group. Ungrouped in GSWA 500K Solid Geology GIS (2008).|Metadolerite and metagabbro; minor amphibolite|basic intrusive rock|metamorphosed basic igneous rock||Y||09-JUN-23
Woodynook Sandstone|34583|Woodynook|23252|||Yes|Formation, beds|Formal|Resvd name published|Defined|Sue Group|34554|||Sakmarian||||deposition|Sakmarian||||||121||No|22818|22820|||||Vasse River Coalfield, Perth Basin|Predominantly sandstone with interbedded conglomerate and subordinate argillaceous units.|siliciclastic sedimentary rock|||N||17-JAN-23
Woolaga Limestone Member|20545|||||Yes|Member, phase|Formal|Other new published name|Described|Holmwood Shale|8432|||Sakmarian||||deposition|Sakmarian||||||1||No|36890||||||First established and defined by Playford, G. 1959, Permian stratigraphy of the Woolaga Creek area, Mingenew district, Western Australia. Journal of the Royal Society of Western Australia, 42, pp. 7-32. Perth.|Fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Woolaston Formation|20549|||||Yes|Formation, beds|Formal|Other new published name|Described|Bathurst Island Group|1249|||Turonian||||deposition|Cenomanian||||||||No|42053||||||Age: ~95-~86Ma [in 2001].|Pelagic marl, hemipelagic marl, limestone.|carbonate sedimentary rock|||N||17-JAN-23
Woolgangie Monzogranite|20554|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42698|||||||Recrystallized monzogranite and granodiorite; typically coarse-grained, granoblastic, and lacks foliation; xenoliths described in some detail.|acid intrusive rock|||Y||17-JAN-23
Woolgangie Supersuite|35375|||||Yes|Supergroup|Formal|Variation of published name|Briefly described|||||Archean|2646|6|||Archean|2646|6||||||No|23904||||||Age: ~2.66Ga|||||Y||17-JAN-23
Woolgra Andesite Member|74952|Woolgra Formation|24121|||Yes|Member, phase|Formal|Variation of published name|Described|Greensleeves Formation|74808|||Neoarchean|2734|||eruption|Neoarchean|2755|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|64891||Ivanic, T., Van Kranendonk, M. (GSWA)|16-JAN-09|||Originally reserved and published as Woolgra Formation (1985,1990) . Name now to be revised for use in the complete revision of the Murchison domain lithostratigraphy; to be published in GSWA Annual Review 2007-2008 (Nov. 2008).   Age: c.2755Ma.|Andesitic volcanic and volcaniclastic rocks; weakly metamorphosed.|intermediate volcanic rock|||N||17-JAN-23
Woolnough Member|70705|Woolnough Formation|20559|||Yes|Member, phase|Formal|Variation of published name|Fully described|Browne Formation|2683|||Cryogenian||||deposition|Cryogenian||||||||No|65363||||||Formerly Woolnough beds.|Red-grey stromatolitic dolostone, argillaceous dolostone, dolomitic mudstone, and minor dolomitic sandstone.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
Wooltanna Volcanics|70706|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||||||eruption|||||||||No|62453|||||||||||N||17-JAN-23
Wooly Formation|81974|Wooly Dolomite|20590|||Yes|Formation, beds|Formal|Variation of published name|Defined|||||Orosirian|1801|6|inferred, overlying unit||Orosirian|2031|6|inferred, underlying unit|maximum depositional age|175|325|WA|Yes|72712||||||Published in GSWA Report 203. See definition card for more details. Significant redefinition of the old Wooly Dolomite.|Thin- to thick-bedded dolostone, locally stromatolitic; ferruginous to dolomitic argillite and volcaniclastic sandstone; carbonaceous shale; minor conglomerate, jaspilite and basalt.|carbonate sedimentary rock|siliciclastic sedimentary rock||N||09-JUN-23
Woolyeenyer Formation|20591|Woolyeenyer Group|29261|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Neoarchean|2714|5|isotopic, U/Pb|deposition|Neoarchean|2714|5|isotopic, U/Pb|||10|WA|No|30562|30562|||||Defined 1973. To become part of the Higginsville Subgroup, Kalgoorlie Group.|Basalt, aphyric to acicular, often pillowed; komatiite; dolerite/gabbro intrusions; metamorphosed.|basic igneous rock|ultramafic igneous rock||N||17-JAN-23
Woongarra Rhyolite|29565|Woongarra Volcanics|20605|||Yes|Formation, beds|Formal|Variation of published name|Fully described|Hamersley Group|8005|||Siderian|2449|3|isotopic, U/Pb-Pb/Pb ion probe|eruption|Siderian|2470|30|isotopic, U/Pb|||800|WA|No|42986|||||||Rhyolite, rhyodacite, rhyolitic volcaniclastic breccia and banded iron formation; metamorphosed.|acid volcanic rock|igneous volcanic rock||Y||17-JAN-23
Woora Woora Formation|20612|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Disappointment Group|33754|||Ediacaran||||deposition|Ediacaran||||||400||No|42708|||||||Medium grained ferruginous sandstone, lithic sandstone, with locally common interbeds of siltstone and silty claystone.|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Wooramel Group|25651|Wooramel Sandstone""|20613|||Yes|Group, Suite|Formal|Variation of published name|Defined|||||Kungurian|||inferred|deposition|Sakmarian|||inferred||50|460|WA|No|44040|45016|||||See also Lexicon. Defn on Tech. File F/50-13. Gas source rocks and seals.|Fine to coarse-grained sandstone, siltstone and shale; granule to pebble conglomerate|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Worral Formation|24124|||||Yes|Formation, beds|Formal|Other new published name|Defined|Tanndulla Group|24008|||Lower Devonian||||deposition|Llandovery||||||200|WA|No|40837|40837|Lehmann P.|20-JAN-84|||DEF 87/25751. Local conodonts.|Red-brown siltstones, sandstones and dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Wotjulum Porphyry|20639|||||Yes|Formation, beds|Formal|Variation of published name|Described|||||Statherian||||magmatic crystallisation|Statherian|1740|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|30893|||||||Grey quartz feldspar porphyry with phenocrysts of pink quartz and plagioclase and microcline|acid intrusive rock|||Y||17-JAN-23
Wright Hill Formation|20650|Wright Hill beds|27019|||Yes|Formation, beds|Formal|Unknown or process pending|Described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No|34535||||||Current usage in WA. See also Wright Hill Beds.|Siltstone, sandstone, quartzite; minor black oolitic chert.|siliciclastic sedimentary rock|||N||17-JAN-23
Wunaamin Miliwundi Sandstone|81985|King Leopold Sandstone|9602|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|Kimberley Group|9572|||Statherian|1790|4|inferred, intrusive relationship|deposition|Orosirian|1834|3|inferred, underlying unit|maximum depositional age||||No|||Phillips, C. (GSWA)|22-JUL-20|||Intruded by Hart Dolerite sills and dykes. Kimberley Basin, North Australian Craton.Replaces King Leopold Sandstone in 2020, due to place name change and recognition of local name preference. See also GSWA ENS report at: https://reportviewer.dmp.wa.gov.au/reportviewer/Default.aspx?reportPath=/ENS/Lithstrat%20Report&UnitNo=370 .|White to pale brown, medium- to coarse-grained quartz sandstone and pebbly quartz sandstone; minor siltstone and granule to pebble conglomerate.|medium-coarse grained siliciclastic rock|fine grained siliciclastic rock||N||11-APR-23
Wungabal Limestone|28140|||||Yes|Formation, beds|Formal|Other new published name|Defined|Ningbing Group|14166|||Famennian||||deposition|Famennian|||||||WA|No|40993|40993||||||Red "scheck" breccia and fossiliferous limestone.|carbonate sedimentary rock|||N||17-JAN-23
Wurarga Granodiorite|78357|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Bunnawarra Suite|78355|Mesoarchean||||magmatic crystallisation|Mesoarchean|2950||isotopic|||||No|69583||Ivanic, T. (GSWA)|29-AUG-13|||Wurarga, Mellenbye 100k sheets.  To use in the southern Murchison Domain. Age: 2950 Ma. Type area: 5km east of Wurarga Hsd, lat 28deg25', long 116deg17'. Metamorphosed 'basement' unit, no known older units in region.|Migmatitic tonalite to granodiorite with monzogranitic components; typically gneissic.|metamorphosed acid igneous rock|||Y||17-JAN-23
Wururu Rhyolite|27020|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Cassidy Group|27737|||Stenian||||eruption|Stenian|1065|5|isotopic|||||No|30944||||||Bentley Basin (GSWA, 2011).|Dark-grey, feldspar-phyric rhyolite with very fine-grained groundmass; massive, flow-banded or spherulitic.|acid volcanic rock|||N||17-JAN-23
Wy-Uda Shale Member|20686|||||Yes|Member, phase|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|38978||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Wye Worry Member|20708|||||Yes|Member, phase|Formal|Other new published name|Defined|Carolyn Formation|24214|||Sakmarian|||inferred, overlying unit|deposition|Sakmarian|||inferred, underlying unit|||110|WA|Yes|30338|30338|Towner R., Crowe R.W.A.|22-MAY-75|WA SNSC|31-MAR-76|Formerly (1976) included in the Grant Formation. Eastern St George Range. With the relegation of Carolyn Formation to informal status, this Member may be upgraded to a Formation of the Grant Group after further assessment (Backhouse and Mory, 2020 GSWA Report 207).|Sandstone, diamictite, claystone/siltstone with dropstones, minor conglomerate lenses.|siliciclastic sedimentary rock|||N||17-JAN-23
Wyloo Group|20715|Wyloo Group, upper|40447|||Yes|Group, Suite|Formal|Other new published name|Redefined|||||Statherian|1799|8|isotopic, U/Pb-Pb/Pb ion probe|deposition|Orosirian|2031|6|inferred, underlying unit|maximum depositional age||12000|WA|Yes|44729|35976|||||Informally established and subdivided by MacLeod et al. (1963). Maximum age is subject to debate (GSWA, UWA). Upper age from tuff near top of Ashburton Fm (1806 +/- 9) and from June Hill Volcanics (1799 +/- 8). Base age of original Wyloo Group only poorly constrained to somewhere between a minimum detrital zircon age (2446 Ma) and the age of the Cheela Springs Basalt (2209 Ma). Appears to include a significant unconformity between Wooly Dolomite and Mount McGrath Formation. This group now [March 2016] split into two Groups. Shingle Creek Group, as the formal name to replace the informal lower Wyloo Group. Wyloo Group is now reserved for what was informally referred to as the upper Wyloo Group. Ashburton Basin.|Sandstone, mudstone, conglomerate, siltstone, dolostone, mafic and felsic volcanic and volcaniclastic rocks, banded iron formation, chert.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||29-JUN-23
Wyloo Supersequence|33835|||||Yes|Supergroup|Sequence stratigraphy|Other new published name|Described|||||Orosirian|1997||||Orosirian|2044|||||||No|22546||||||Wyloo Basin. 2044-1977 Ma.|||||N||17-JAN-23
Wyman Formation|26238|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Kelly Group|69691|||Paleoarchean|3318|4|isotopic, U/Pb|eruption|Paleoarchean|3325|4||||1100|WA|Yes|30766|31853|Hickman A.H., Lipple S.L.|24-APR-74|WA SNSC|06-JAN-75|Age: 3325 Ma. Note: Some older references place this unit within Kelly Subgroup (of Warrawoona Group); others say it overlies Warrawoona Group. Kelly Subgroup upgraded to Group status containing this Formation (2006).|Felsic volcanic and volcaniclastic rocks; local clastic sedimentary rocks, chert and basalt; metamorphosed|acid volcanic rock|sedimentary rock||N||09-JUN-23
Wyndham Shale|20719|||||Yes|Formation, beds|Formal|Unknown or process pending|Described|Bastion Group|1242|||Statherian||||deposition|Orosirian||||||||No|44363|||||||Green and grey shale and siltstone with fine-grained sandstone interbeds|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Yabbat Granite|31959|||||Yes|Formation, beds|Formal|Resvd name published|Briefly described|||Minnie Creek Supersuite|31954|Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No|50425||Wyborn L.A.I.|25-NOV-97|||Gascoyne Province. Shown as -Pgla, -Pghs, -Pgbb, -Pgbp, -Pgbs, -Pgvo, -Pgmb on Glenburgh 1:250k map sheet.||acid intrusive rock|||Y||17-JAN-23
Yadgimurrin Member|38137|||||Yes|Member, phase|Formal|Other new published name|Described|Yelma Formation|20942|||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|50626|||||||Quartz sandstone, matrix-supported polymictic conglomerate, minor pebble conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
Yagahong beds|20744|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|38994|||||||||||N||17-JAN-23
Yakabindie Metadunites|20750|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned||||||||||||||||||No|38459|||||||||||Y||17-JAN-23
Yalca Hill Monzogranite|78532|||||Yes|Formation, beds|Reserved|Reserved|Described|||||||||intrusion|||||||||No|70153||Hall, C. (GSWA)|05-NOV-13|||Lake Lefroy 1:100k map sheet area. Biotite monzogranite. To be published = East Yilgarn 2013-2013 Update, Geological Survey of Western Australia digital product.|Biotite monzogranite.|acid intrusive rock|||Y||17-JAN-23
Yalgoo Formation|78991|Yalgoo Group|23278|||Yes|Formation, beds|Formal|Variation of published name|Briefly described|Polelle Group|74804|||Neoarchean|2760||inferred|deposition|Neoarchean|2800||inferred|||||No|70226||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Yalgoo 1:100k map sheet. Type area: north of Yalgoo townsite. Probably time-equivalent to the Meekatharra Formation in the northern Murchison Domain, but subtle differences in lava types and abundances warrants a separate formation. See also previous usage as Yalgoo Subgroup.|Pyroxene spinifex-textured basalt interlayered with thin flows of olivine spinifex-textured komatiite; tholeiitic and variolitic basalt dominant in upper part; sedimentary and volcaniclastic interlayers; metamorphosed.|basic volcanic rock|ultramafic volcanic rock||N||17-JAN-23
Yalgorup Member|77689|Myalup Member|40568|||Yes|Member, phase|Formal|Resvd name published|Briefly described|Lesueur Sandstone|25993|||Upper Triassic||||deposition|Middle Triassic||||||||No|69081||Mory, A. (GSWA) after Crostella & Backhouse|20-DEC-12|||Named after Lake Yalgorup. Map Sheet = Pinjarra. Nearest Town = Pinjarra or Harvey. Brief Description = the name 'Yalgorup' to replace 'Myalup' for the Myalup Member of the Middle-Upper Triassic Lesueur Sandstone (proposed by Crostella and Backhouse, 2000 - GSWA Report 57, on p. 15) as Myalup has a previous usage by Semeniuk(1995, REFID: 63454) for a Pleistocene unit. To be published = 2013 as part of GSWA Harvey 1 well completion report.|Sandstone and pebbly sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Yalgowra Suite|74829|||||Yes|Group, Suite|Formal|Resvd name published|Described|||Austin Downs Supersuite|74824|Neoarchean|2711|2|isotopic, Pb/Pb||Neoarchean|2735|5|isotopic, Pb/Pb|||1000||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||Associated with Glen and Polelle Groups. Geological province: Murchison Domain.|Mafic to ultramafic sills, ranging from dunite and pyroxenite at base to gabbro and leucogabbro with long feathery pyroxene crystals at their tops; includes peridotite.|basic intrusive rock|ultramafic intrusive rock||Y||21-JUL-23
Yallalong Granite|31767|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2685|||||||No|43835|||||||Coarse, even grained, granulite-facies leucocratic monzonite|intermediate intrusive rock|||Y||17-JAN-23
Yallingarrintha Tonalite|41172|Yallingarrintha Granodiorite|33199|||Yes|Formation, beds|Formal|Variation of reserved name|Described|||Tambina Supersuite|68742|Paleoarchean|3420|0||intrusion|Paleoarchean|3421|2||||||No|50370||||||Reserved as Yallingarrintha Granodiorite.|Biotite-hornblende tonalite to granodiorite, foliated, metamorphosed|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Yallum Hill Member|74899|||||Yes|Member, phase|Formal|Other new published name|Briefly described|Glenayle Dolerite|40821|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|64655|||||||Medium- to coarse-grained dolerite, locally mesocratic and granophyric; in places layered with gabbroic base; local superposition of sills indicated by l (lower) and u (upper).||||Y||17-JAN-23
Yaloginda Formation|74803|Gabanintha Formation|23604|||Yes|Formation, beds|Formal|Resvd name published|Described|Norie Group|74802|||Mesoarchean|2806|4|isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Mesoarchean|2825|||||500||No|64891||Van Kranendonk, M. (GSWA)|17-SEP-08|||With Greensleeves Formation, replaces Gabanintha Formation. For use in revision of Murchison domain lithostratigraphy; published in GSWA Annual Review for 2007-2008. Now includes the Kantie Murdanna Vocanics as a Member (Tim Ivanic, GSWA, pers comm MAR-2011)|Banded BIF and ferruginous banded chert; andesitic and dacitic volcanic and volcaniclastic rock; both metamorphosed. Quartzite; psammitic schist locally grading into pelitic schist; pelite, locally strongly sheared; metasiliciclastic rocks.|metamorphosed acid igneous rock|metasedimentary non-carbonate chemical or biochemical rock||N||21-JUL-23
Yamagee Granite|30815|Yamagee granite|80542|||Yes|Formation, beds|Formal|Resvd name published|Described|||Bertibubba Supersuite|38576|Orosirian||||intrusion|Orosirian|1958|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|23485||Occhipinti S.|17-JAN-97|||Robinson Range 1:250 000 sheet area. Geol Province: Gascoyne Complex.|Foliated, medium- to fine-grained, even-textured, biotite monzogranite; minor leucocratic biotite-garnet monzogranite.|acid intrusive rock|||Y||17-JAN-23
Yampi Formation|27027|Yampi Member|20796|||Yes|Formation, beds|Formal|Variation of published name|Described|Kimberley Group|9572|||Statherian||||deposition|Statherian||||||||No|42815|||||||Proximal-littoral pink-brown arkose and feldspathic sandstone, minor siltstone, haematitic quartz sandstone, glauconitic sandstone, and quartz pebble conglomerate|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Yandagooge Formation|24134|||||Yes|Formation, beds|Formal|Resvd name published|Described|Rudall Complex|26880|||Paleoproterozoic|1765|29|isotopic, U/Pb|intrusion|Paleoproterozoic||||||1500||No|42278||Clarke G.L.|30-MAR-90|||Older part of the Rudall Complex. Hosts the Kintyre uranium deposit. Median age for uraninite in the Kintyre deposit  837 +/- 31-35 Ma which is best interpreted as reconnaissance-level age determination. This age is in good agreement with the ca 845 Ma estimate for the deposit (Maas unpublished, cited Huston et al. 2009) (RefID 67182).|Pelitic to semi-pelitic quartz-mica schist, hematite-biotite schist, muscovite quartzite, quartzite, with local psammitic gneiss, pyritic graphite schist, chert, and metamorphosed banded iron formation|metasedimentary siliciclastic rock|non-carbonate chemical or biochemical sedimentary rock||N||17-JAN-23
Yandal Sandstone|38646|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean||||deposition|Archean|2680|6||||||No|23786||||||||siliciclastic sedimentary rock|||N||17-JAN-23
Yandanooka Group|26240|Yandanooka Beds""|29184|||Yes|Group, Suite|Formal|Other new published name|Defined|||||Neoproterozoic||||deposition|Mesoproterozoic|1000|||||10000|WA|No|48823|36293|||||See also Lexicon. Age: circa 1000 Ma. Of the Mullingarra Complex, Pinjarra Orogen, not Perth Basin. Possibly correlated to Billeranga Subgroup of Moora Group.|Siltstone, feldspathic sandstone, conglomerate; abundant volcanic fragments|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Yandanunyah Formation|24135|Wandy Wandy Shale|24555|||Yes|Formation, beds|Formal|Resvd name published|Defined|Tarcunyah Group|31872|||Cryogenian||||deposition|Cryogenian||||||450|WA|No|43056|41669|R.J.Chin, I.R.Williams|18-APR-83|||Balfour Downs explanatory notes.|Laminated to thinly bedded dolomite with minor stromatolitic interbeds; calcareous and dolomitic shale and siltstone|carbonate sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
Yandeearra Granodiorite|41175|Yandeearra Leucogranite|33201|||Yes|Formation, beds|Formal|Resvd name published|Described|Yule Granitoid Complex|33198|Sisters Supersuite|68741|Archean||||intrusion|Archean||||||||No|50370||Van Kranendonk, M.|14-APR-05|||Variation of the reserved name Yandeearra Leucogranite (Smithies, 1998). Current name reserved by Van Kranendonk, M. (14APR05) but published as Yandearra Granodiorite (GSWA Record 2006/15).|Biotite-bearing granodiorite, weakly to strongly foliated; metamorphosed.|acid intrusive rock|||Y||17-JAN-23
Yandicoogina Shale Member|20814|||||Yes|Member, phase|Formal|Other new published name|Defined|Brockman Iron Formation|2602|||Siderian|2451||inferred|deposition|Siderian|2459||inferred, underlying unit|||40|WA|No|34541|33544|||||Topmost unit in Brockman Iron Formation. Ages from Trendall et al (2004), RefID 60706.|Comprises alternating chert and thin shale, intruded by dolerite sills.|sedimentary rock|basic intrusive rock||N||29-JUN-23
Yandinilling Dolerite|82229|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Neoarchean|||||Neoarchean|2615|6|isotopic, U/Pb-Pb/Pb, TIMS|||||No|||Wingate, M.T.D. (GSWA)|26-MAR-21|||Aeromagnetic data suggest that the dyke is part of a series of NE-trending intrusions that potentially extend hundreds of km in the southwestern part of the Yilgarn Craton.2615 +/- 6 Ma ID-TIMS U-Pb on baddeleyite (Stark et al., 2018).|Dolerite.|basic intrusive rock|||Y||17-JAN-23
Yangibana Granite|35993|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Durlacher Supersuite|37648|Statherian|1659|10|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Statherian|1660|9|isotopic, U/Pb-Pb/Pb ion probe||||WA|Yes|50292|61262|Sandi Occhipinti - Curtin University occhipis@lithos.curtin.edu.au|16-MAY-01|||Located at Yangibana Bore, Edmund 1:100 000 sheet at GDA: 314700E 7357600N.|Biotite-muscovite syenogranite to monzogranite; medium even grained to locally slightly porphyritic granite.|acid intrusive rock|||Y||17-JAN-23
Yannery Granite|36022|||||Yes|Formation, beds|Formal|Resvd name published|Described|||Radley Suite|68740|Mesoarchean|2925|||intrusion|Mesoarchean|2925|||||||No|24352||Hickman, A.|29-MAY-01|||See Pinderi Hills 1:100K sheet. Archaean Monzogranite, about 15km2 in area that intrudes Archaean Whundo Group 35km south of Karratha. Age of intrusion is 2925Ma. Within the Sisters Supersuite. Also referred to as the North Whundo Intrusion.|Fine to medium-grained, nonfoliated monzogranite; amphibole replaced by chlorite; anomalously magnetic.|acid intrusive rock|||Y||17-JAN-23
Yanyare lamproite|84025|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Statherian|1681.6|8.3|||Statherian|1724|8||||||No|||||||Yanyare-02, the largest of the Yanyare dykes is discussed in Matchan et al. (2009), refID 75075. Ages from phlogopite grains. The Yanyare dykes are ~50 km to the northwest of the diamondiferous Blacktop Kimberlite.|Olivine-phlogopite-sanidine lamproite with extreme LREE enrichment in trace element data.||||Y||14-SEP-23
Yapukarninjarra Formation|82206|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||||Tremadocian|||inferred, overlying unit|deposition|Cambrian|510|5|isotopic, U/Pb-Pb/Pb ion probe|maximum depositional age|112|142|WA|Yes|73345||Haines P. (GSWA), Normore, L. (GSWA)|23-FEB-21|WA SNSC|02-FEB-22|(pronounced Yap-oo-karnin-jarra). It is is a term for rocks underground in the region (appropriate for a sub-surface only formation). The name has been approved for use by the relevant Aboriginal land council (WDLAC) representing the traditional owners of the area. For use in Waukarlycarly 100K, Paterson Range 250K area. For a local subsurface sandstone unit of inferred Cambro-Ordovician age at the base of the Canning Basin succession intersected in stratigraphic drill hole Barnicarndy 1 (the proposed type locality), but also recognised in several other drill holes. Published in Normore et al. (2021) APPEA Journal 61 and Dent et al. (2021) Interpretive Well Completion Report (GSWA Report 211). Yeneena Basin sediments underly this unit.|red and grey, fine to coarse-grained quartz arenites with rare mottled bioturbation and local argillaceous sandy siltstone interbeds. Thin green claystone beds, most abundant near the base, are interpreted as bentonites.|medium-coarse grained siliciclastic rock|||N||28-JUL-23
Yardarino Sandstone Member|20842|Yardarino Sandstone|20843|||Yes|Member, phase|Formal|Unknown or process pending|Described|Wagina Sandstone|26193|||Lower Triassic||||deposition|Late Permian||||||||No|31910||||||Defined as Yardarino Sandstone||siliciclastic sedimentary rock|||N||17-JAN-23
Yardie Group|20847|||||Yes|Group, Suite|Formal|Unknown or process pending|Briefly described|||||Neogene|||||Cenozoic||||||||No|44959||||||See also Lexicon. Name dropped?|||||N||17-JAN-23
Yareweeree Boninite Member|70138|||||Yes|Member, phase|Formal|Resvd name published|Defined|Constantine Sandstone|4460|||Archean|2954||inferred, intrusive relationship|deposition|Archean|2970|||||||No|63441|63441|Van Kranendonk, M. (GSWA)|14-MAR-06|Hocking, R.||Named for Yareweeree Pool on Mount Wohler 1:100 000 sheet. Desc. in Smithies, R.H., 2002: Archaean boninite-like rocks in an intracratonic setting. Earth/Plan.Sci.Letters, v197, p19-34). Within the Croydon Gp/De Grey Supergroup. In 2016 Hickman states in GSWA Report 160 p58 that the Yareweeree Boninite Member intrudes the central part of the Mallina Basin and is now considered part of the Constantine Sandstone.|Serpentine-rich ultramafic schist, chlorite-actinolite-serpentine-epidote schist after high-Mg basalt, and weakly metamorphosed melanogabbro and pyroxenite, characterised by a biniite-like geochemistry.|metamorphosed basic igneous rock|||N||17-JAN-23
Yaringa Formation|67833|Yaringa Evaporite|67832|||Yes|Formation, beds|Formal|Variation of published name|Described|Dirk Hartog Group|37057|||Silurian||||deposition|Llandovery|||biozone|deposition||105|WA|No|6943||||||Replaces Yaringa Evaporite, Yaringa Evaporite Member. Do not confuse with Yaringa Metamorphics of Queensland. Age probably Wenlock to Ludlow (see Yaringa Evaporite).|Laminated oolitic dolostone interbedded with saliferous dark grey shales, halite beds and anhydrite.|non-carbonate chemical or biochemical sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yarlarweelor Gneiss Complex|33855|||||Yes|Group, Suite|Formal|Other new published name|Fully described|||||Paleoproterozoic|1813||inferred, structural relationship||Archean|3298|||||||No|22437||||||Age: 3300-1800 Ma.|Undivided metagranitic rock, mainly composed of banded leucocratic and mesocratic granitic gneisses, consisting of several interlayered rock types, that have been repeatedly deformed and metamorphosed; most rock types are granitic.|metamorphosed acid igneous rock|||Y||09-JUN-23
Yarra Yarra Granite|31763|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean|2620|||||||No|43835||||||Technically invalid name. Not related to Yarra Granite. Not related to Yarra Yarra Creek Group.|Coarse-grained, equigranular, leucocratic granulite-facies monzogranite. In places contains abundant inclusions of quartzite and banded iron formation.|intermediate intrusive rock|||Y||17-JAN-23
Yarrabubba Monzogranite|75914|Yarrabubba Granite|70184|||Yes|Formation, beds|Reserved|Variation of published name|Described|||Walganna Suite|74845|Neoarchean||||intrusion|Neoarchean||||||||No|69628||Van Kranendonk, M. (GSWA)|07-APR-11|||The Yarrabubba Granite is to be renamed the Yarrabubba Monzogranite and assigned to the Walganna Suite of the Bald Rock Supersuite. This change in nomenclature appears on the Nowthanna 1:100K map sheet, in prep. here at GSWA for release in June 2011.|Medium- to coarse-grained, muscovite--albite monzogranite; contains veins of quartz, pseudotachylite, and muscovite-bearing pegmatite; quartz grains show microscopic planar deformation features.|acid intrusive rock|||Y||17-JAN-23
Yarragadee Formation|20871|Yarragadee Beds|20870|||Yes|Formation, beds|Formal|Variation of published name|Redefined|||||Tithonian|||inferred, biostratigraphic correlation|deposition|Middle Jurassic|||inferred, biostratigraphic correlation|||4000|WA|No|48615|40300|||||Defined McWhae et al (1958); original type section 2.4 km SSE of Yarragadee Homestead. See also Lexicon. Briefly described in 00/30544.  Redefined by Backhouse (1984).  New ref. section nominated for Gingin No. 1 Well (356 -3315 m): Playford et al. (1976) and Backhouse (1984). Lith description from 2004.|Interbedded fine- to coarse-grained feldspathic sandstones, siltstones and claystones with minor conglomerates and coal.|siliciclastic sedimentary rock|organic rich sedimentary rock||N||17-JAN-23
Yarragadee Sequence|79248|||||Yes|Formation, beds|Sequence stratigraphy|Sequence strat published|Briefly described|||||Lower Cretaceous|||||Upper Jurassic||||||||No|70097||||||See also Yarragadee Formation.|Fluvio-deltaic sandstones and siltstones were deposited in the lower part of the Yarragadee Sequence, followed by coarse-grained fluvial sediments. Intrusive rocks interpreted.|siliciclastic sedimentary rock|||N||17-JAN-23
Yarraloola Conglomerate|29187|Yarraloola Beds|20877|||Yes|Formation, beds|Formal|Variation of published name|Fully described|||||Lower Cretaceous|||inferred|deposition|Lower Cretaceous|||inferred||||WA|No|44477||||||Previously considered part of Winning Group, but now considered to unconformably underlie. Lateral equivalent to Barrow Group and in part to Nanutarra Formation.|Polymictic cobble to small boulder conglomerate, lesser sandstone; minor siltstone|siliciclastic sedimentary rock|||N||17-JAN-23
Yarraquin granite|80136|||||Yes|Formation, beds|Informal|Variation of published name|Mentioned||||||||||||||||||No|69583||||||Possibly refers to Yarraquin tonalite (unit no. 79821).|Mainly high temperature granitic gneiss, including numerous xenoliths of mafic gneiss and paragneiss.|acid intrusive rock|||Y||17-JAN-23
Yarrawolya Formation|20890|||||Yes|Formation, beds|Formal|Other new published name|Defined|Badgeradda Group|863|||Neoproterozoic||||deposition|Neoproterozoic||||||437|WA|No|48823|45015|||||See also Lexicon. Defn on Tech File G/50-14. Max. thickness (probably truncated): 1435ft.|Siltstone and silty sandstone.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||03-APR-23
Yarri Monzogranite|30540|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Neoarchean||||intrusion|Neoarchean||||||||No|43205|||||||Biotite monzogranite; K-feldspar phenocrysts; High-HFSE Granite.  Coarse-grained and pervasively foliated.|acid intrusive rock|||Y|I-type|17-JAN-23
Yeelingee Member|33176|||||Yes|Member, phase|Formal|Variation of published name|Described|Irregully Formation|8786|||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No|44481||||||Wyloo 1:250 000 map sheet area. Broadly equivalent to the Blue Billy Formation, Edmund 1:250k sheet area.||siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yeelirrie Member|25669|||||Yes|Member, phase|Formal|Resvd name published|Described|Menzies Formation|26027|||||||deposition|||||||||No|41199|||||||||||N||17-JAN-23
Yellow Drum Formation|20933|Yellow Drum Sandstone|20935|||Yes|Formation, beds|Informal|Variation of published name|Described|Fairfield Group|6483|||Tournaisian||||deposition|Famennian||||||||No|45143||||||Defined as Yellow Drum Sandstone.  Yellow Drum Formation favoured for some years. Yellow Drum Sandstone reinstated by GSWA ~2006?, but evidently dropped again in 2017/2018 datasets, in favour of Yellow Drum Formation.|Shallow-marine medium to coarse cross bedded sandstone, porous medium to thickly bedded dolomite brecciated near base, minor shale and siltstone, rare thin limestone beds|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yellow Drum Sandstone|20935|||||Yes|Formation, beds|Formal|Resvd name published|Defined|Fairfield Group|6483|||Tournaisian||||deposition|Famennian||||||70|WA|Yes|46794|45153|Druce E.C., Radke B.M.|13-APR-76|WA SNSC|13-MAY-76|Defined 1981. See also Yellow Drum Formation (favoured for some years). This name reinstated by GSWA ~2006?, but evidently dropped again 2017/2018, in favour of Yellow Drum Formation.|Calcareous sandstone; medium to coarse dolomite; minor shale, siltstone, limestone.|carbonate sedimentary rock|||N||17-JAN-23
Yelma Formation|20942|||||Yes|Formation, beds|Formal|Other new published name|Redefined|Tooloo Group|79474|||Orosirian|1950||isotopic, U/Pb-Pb/Pb ion probe|magmatic crystallisation|Orosirian|1971|26|isotopic, U/Pb|magmatic crystallisation|3|1600|WA|No|30010|65419|||||Defined 1977. Redefined 1997. Formerly part of the Earaheedy Group. Max depositional age 2027 Ma (2005). Includes strata previously referred to Malmac Formation. SHRIMP U-Pb dating of magmatic zircons from thin tuffaceous layers in the Yelma Formation provides depositional ages of 1970-1950 Ma Johnson (2013) RefID 69003.|Sandstone, dolomite (locally stromatolitic), siltstone, and shale; minor conglomerate and limestone; shallow marine to fluvial deposits.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yenart Sands|20949|||||Yes|Formation, beds|Informal|Unknown or process pending|Mentioned|||||||||deposition|||||||||No|29631||||||Name out of use since 1972. Probably obsolete?|||||N||17-JAN-23
Yeneena Supergroup|31375|Yeneena Group|20951|||Yes|Supergroup|Formal|Variation of published name|Defined|||||Neoproterozoic|800|||deposition|Mesoproterozoic|1060||||1200|1300||No|44111|23590||||||Sandstone, conglomerate, siltstone, shale, dolostone|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yenyening Formation|30329|||||Yes|Formation, beds|Formal|Resvd name published|Fully described|Salt River Group|30327|||Pliocene||||deposition|Miocene|||biozone|||19||No|22769||Salama R.B.|04-JUL-96|||Does not crop out.|Comprises mainly lake deposits formed of greenish to greyish clay with layers of blackish mudstone; two layers of lignite have been encountered in drill cores. Includes pollen, fossil leaves & branches.|regolith|||N||17-JAN-23
Yilgaddy Andesite Member|78996|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Yalgoo Formation|78991|||Neoarchean|2760||inferred|eruption|Neoarchean|2790||inferred|||||No|70226||Ivanic, T. (GSWA)|07-JAN-15|||To be used in Murchison Domain updates in 2015. Named after Yilgaddy Pool, Yalgoo 1:100k sheet area. 28deg15'S, 116deg37'E. Type area 4.5 km northwest of Yalgoo townsite. Overlies Singleton Basalt Member NW of Yalgoo townsite.|Andesite to basaltic andesite lavas; typically glassy and with distinctive coarsely spherulitic flows; minor basalt and dacite; metamorphosed. Includes felsic schist, and andesitic volcanic breccia to sandstone; metamorphosed.|intermediate volcanic rock|basic volcanic rock||N||17-JAN-23
Yilgangi Conglomerate|20984|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Archean|2662|4||deposition|Archean||||||935||No|36869|||||||Polymictic clast-supported (cobble-pebble) conglomerates, massive to weakly graded sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Yilgarn Craton - alkali-feldspar granite #84042|84042|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gf-Y.|Alkali-feldspar granite; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - foliated granitic and mafic rocks #84033|84033|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-xmgss-mba-Y; A-xmgss-mbs-Y; A-xmgss-msqf-Y; A-xmgss-mw-Y; A-xmgss-mwa-Y.|Foliated metagranitic rock interleaved with subordinate amphibolite, foliated metamafic rock, and quartzofeldspathic schist; gneissic banding developed locally.||||Y||16-SEP-23
Yilgarn Craton - granite #84039|84039|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-g-Y, A-mg-Y.|Granitic rock, undivided; metamorphosed; Metagranitic rock, undivided.||||Y||16-SEP-23
Yilgarn Craton - granite #84046|84046|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gn-Y, A-gna-Y, A-gnap-Y, A-gnaq-Y, A-gnl-Y, A-gnp-Y, A-gnpq-Y.|Granitic rock, includes micro-, fine-grained, porphyritic (quartz- and feldspar-), leucocratic; metamorphosed; occurs as sheets, dykes, and sills; locally schistose; includes deeply weathered rock.||||Y||16-SEP-23
Yilgarn Craton - granitic and mafic rocks #84050|84050|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-xg-mb-Y, A-xg-mbs-Y, A-xg-b-Y.|Massive to moderately foliated granitic rock interleaved with minor foliated metamafic rock.||||Y||16-SEP-23
Yilgarn Craton - granitic gneiss #84022|84022|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-xmgnb-mgmn-Y, A-xmgn-mgss-Y, A-mgn-Y, A-mgni-Y, A-mgnl-Y, A-mgno-Y, A-xmgni-mwa-Y.|Granitic gneiss, including metamorphosed granite, granodiorite, diorite, monzogranite, and orthogneiss; migmatic aggregates; quartz-feldspar-biotite and orthopyroxene assemblages; moderately to strongly deformed; local mafic bands and enclaves.||||Y||16-SEP-23
Yilgarn Craton - granitic schist #84032|84032|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-xmgs-mi-Y, A-xmgs-mb-Y, A-mgs-Y, A-mgsb-Y, a-mgsn-Y, A-mgss-Y.|Foliated metagranite; variably schistose; locally gneissic or migmatic; interleaved metamorphosed mafic, ultramafic, local sedimentary rock, BIF, and chert; amphibolite lenses; includes deeply weathered rock.||||Y||
Yilgarn Craton - granodiorite #84043|84043|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gg-Y, A-ggi-Y.|Granodiorite with minor monzogranite, diorite, and microgranite; may include hornblende-bearing phases; xenolith bearing; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - metagranodiorite #84036|84036|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mgg-Y|Tonalite-trondhjemite-granodiorite migmatitic gneiss; may include metamonzogranite; moderately to strongly deformed; typically granulite facies; contains mafic rafts.||||Y||16-SEP-23
Yilgarn Craton - metamonzogranite #84037|84037|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mgm-Y, A-mgmb-Y, A-mgms-Y, A-xmgm-mwa-Y, A-xmgmb-mwa-Y.|Metamonzogranite commonly biotite-rich; minor metagranodiorite, metasyenogranite, metapegmatite, and amphibolite; fine to coarse grained; locally gneissic||||Y||16-SEP-23
Yilgarn Craton - metapegmatite #84034|84034|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mgp-Y.|Pegmatitic metagranite.||||Y||
Yilgarn Craton - metatonalite #84038|84038|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mgtn-Y|Mesocratic granitic gneiss; tonalitic to dioritic gneiss commonly associated with mafic gneiss||||Y||16-SEP-23
Yilgarn Craton - migmatitic granitic gneiss #84035|84035|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mgi-Y|Heterogeneous migmatitic granitic gneiss.||||Y||16-SEP-23
Yilgarn Craton - monzodiorite #84044|84044|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gi-Y.|Diorite to quartz monzodiorite; with hornblende, clinopyroxene, and/or biotite; in small dykes and stocks; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - monzogranite #84045|84045|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gm-Y, A-gma-Y, A-gmb-Y, A-gmfp-Y, A-gmi-Y, A-gml-Y, A-gmm-Y, A-gmp-Y, A-gmv-Y, A-gmys-Y, A-jgm-mn-Y, A-xgm-gg-Y, A-xgm-gr-Y.|Monzogranite; common biotite with rare local hornblende and local muscovite; minor granodiorite and syenogranite; fine to coarse grained; equigranular to porphyritic; massive to weakly foliated; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - pegmatite #84040|84040|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gp-Y|Pegmatite dyke; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - quartz monzonite #84041|84041|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gc-Y, A-gch-Y.|Quartz monzonite, commonly porphyritic; locally hornblende-bearing; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - syenite #84048|84048|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gy-Y, A-gycs-A.|Syenite, alkali feldspar syenite, and clinopyroxene-bearing syenite; locally porphyritic; mafic schlieren; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - syenogranite #84047|84047|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gr-Y|Syenogranite; metamorphosed.||||Y||16-SEP-23
Yilgarn Craton - tonalite #84049|84049|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2600||||Mesoarchean|3010|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-gt-Y, A-gtp-Y, A-gviq-Y.|Tonalite, locally porphyritic; metamorphosed; quartz-plagioclase granophyre; locally strongly foiated; commonly occurs as dykes in greenstones.||||Y||16-SEP-23
Yilgatherra Formation|37193|||||Yes|Formation, beds|Formal|Variation of published name|Defined|Edmund Group|34906|||Calymmian|1462||inferred, lithostratigraphic correlation|deposition|Statherian|1620||inferred, lithostratigraphic correlation||300|350|WA|No|34124|24183|||||Supersedes Yilgatherra Member. Geological Province: Edmund Basin. Within the Bangemall Supergroup.  Age: c.1620Ma. 300-350m thick.|Basal sandstone and conglomerate, overlain by siltstone and dolostone.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yilingbun Granophyre|35656|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Proterozoic|||||Proterozoic||||||||No|23125|||||||||||Y||17-JAN-23
Yilmia Gabbro|78385|Yilmia sill|29194|||Yes|Formation, beds|Formal|Variation of published name|Described|||||Neoarchean|2696||inferred|intrusion|Neoarchean|||inferred|||||No|70153||Hall, C. (GSWA)|26-SEP-13||||Gabbro to pyroxenite; metamorphosed.|basic intrusive rock|||Y||17-JAN-23
Yilmia sill|29194|||||Yes|Formation, beds|Informal|Unknown or process pending|Briefly described||||||||||||||||||No|30900|||||||||||Y||17-JAN-23
Yindagindy Formation|20999|Yindagindi Limestone""|20998|||Yes|Formation, beds|Formal|Other new published name|Defined|||||Visean||||deposition|Visean||||||115|WA|No|44537|45015|||||Formerly Yindagindi Limestone. See also Lexicon. SG50-1.|Dominant pebbly quartzwacke and intercalated thin hard limestone beds. Most of the limestone beds are of light bluish-grey oolitic calcilutite with quartz sand up to 15%.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yindagindy Formation, Williambury Formation, Moogooree Limestone|74487|||||Yes|Group, Suite|Informal|Variation of published name|Briefly described|||||Carboniferous||||deposition|Carboniferous||||||||No|||||||Three formations grouped only for mapping purposes for 1:1 million map of Australia|Sandstone, mudstone, limestone, minor conglomerate and dolomite; fossiliferous|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Yindi Monzogranite|21004|||||Yes|Formation, beds|Formal|Other new published name|Described|||||Archean||||intrusion|Archean||||||||No|42741|||||||Fine- to medium-grained, equigranular monzogranite. High Ca granite.|acid intrusive rock|||Y||17-JAN-23
Yoganup Formation|26248|Ridge Hill dune system""|16092|||Yes|Formation, beds|Formal|Variation of published name|Defined|Kwinana Group|25141|||Pleistocene||||deposition|Pleistocene||||||10|WA|No|30939|31896|||||Stated to be of the Kwinana Group (Abeysinghe 2003) but this is probably incorrect (per email R.Hocking 12 Feb 2008).  Also supersedes "Yoganup Shoreline Series".  Age: Tertiary - in Wedge Island area.|Shoreline deposit consisting of basal conglomerate and foredune containing discontinuous concentrations of heavy minerals together with leached quartz sand.|regolith|siliciclastic sedimentary rock||N||17-JAN-23
Youangarra Volcanics Member|78359|||||Yes|Member, phase|Formal|Resvd name published|Described|Yaloginda Formation|74803|||Mesoarchean||||eruption|Mesoarchean||||||||No|70140||Ivanic, T. (GSWA)|29-AUG-13|||Youanmi 100k sheets.  To use in the southern Murchison Domain. Age: c. 2815 Ma. Type area: 5km east of  Youangarra Hsd, lat 28deg46', long 118deg49'.|Metamorphosed siliciclastic rocks interlayered with felsic schist; local dacitic lava to volcaniclastic rocks; minor metachert and metamorphosed BIF; locally strongly sheared.|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
Youanmi Igneous Complex|74842|Youanmi Intrusion|24600|||Yes|Formation, beds|Formal|Resvd name published|Described|||Meeline Suite|74822|Neoarchean|2780|||intrusion|Mesoarchean|2919|||||||No|44149||Van Kranendonk, M. (GSWA)|29-OCT-08|||Geological province: Murchison Domain.  Age: c.2780Ma.|Dolerite; modally layered pyroxenitic gabbro interlayered with serpentinite; gabbronorite grading into norite and leucogabbronorite, interlayered with gabbro; magnetitite interlayered with modally layered magnetite-bearing leucogabbro; metamorphosed.|metamorphosed basic igneous rock|||Y||05-JUN-23
Youanmi Terrane - chemical sedimentary rocks #84015|84015|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mc-YYO, A-xmc-mwa-YYO, A-mib-YYO, A-c-YYO, A-cib-YYO, A-cx-YYO, A-cx-YYO, A-xc-o-YYO, A-xcx-uk-YYO.|Iron formation, chert, mafic intrusive rock; includes minor komatiite, ultramafic, and felsic volcanic rock; jaspilite; commonly schistose and recrystallized; metamorphosed||||N||15-SEP-23
Youanmi Terrane - felsic volcanic or volcaniclastic rocks #84016|84016|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mfas-YYO, A-mfs-YYO, A-mrqm-YYO, A-f-YYO, A-xfa-bb-YYO.|Metamorphosed felsic volcanic and volcaniclastic rock; minor meta-andesite, basaltic andesite, and basalt; massive to fragmental; locally porphyritic; weakly to strongly deformed; deep weathering.||||N||16-SEP-23
Youanmi Terrane - hornfels #84013|84013|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-meax-YYO.|Hornblende-diopside-epidote(-grossular)-quartz hornfels||||N||16-SEP-23
Youanmi Terrane - mafic and ultramafic volcanic rocks #84020|84020|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mb-YYO, A-xmb-mg-YYO, A-xmbs-g-YYO, A-xmbs-cx-YYO, A-mba-YYO, A-mbb-YYO, a-mbbs-YYO, A-mbs-YYO, A-xmb-mu-YYO, A-xmba-mus-YYO, A-xmbm-musr-YYO, A-b-YYO, A-xbb-cl-YYO, A-xb-f-YYO, A-xbb-og-YYO, A-bb-YYO, A-bs-YYO.|Metamorphosed mafic and ultramafic volcanic rock, minor intrusives; includes metamorphosed basalt, gabbro, dolerite, tholeite, komatiite, clastic and volcaniclastic sediments, and BIF; foliated; mafic schists; minor massive to foliated granites.||||N||16-SEP-23
Youanmi Terrane - mafic igneous rocks #84017|84017|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-mw-YYO, A-xmwa-mc-YYO, A-xmwo-mwa-YYO, A-xmwa-mhs-YYO, A-mwa-YYO, A-mwas-YYO, A-mws-YYO.

Compare with Soanesville Group - high-Mg basalt used in GA  2012 surface geology.|Metamorphosed mafic igneous rock, undivided; includes amphibolite, mafic and ultramafic granulite; interleaved with psammite, pelite, metachert and metamorphosed banded iron-formation; schistose; foliated and lineated||||Y||16-SEP-23
Youanmi Terrane - mafic intrusive rocks #84018|84018|||||Yes|Supergroup|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-o-YYO, A-od-YYO, A-xod-og-YYO, A-og-YYO, A-om-YYO, A-moa-YYO, A-mog-YYO.|Mafic intrusive rock dominant; includes basalt, dolerite, gabbro, gabbronorite, leucogabbro, quartz gabbro, pyroxenite; metamorphosed; amphibolite; locally interlayered or strongly sheared; possible chlorite-amphibole-rich with relict igneous texture.||||Y||16-SEP-23
Youanmi Terrane - metasedimentary rocks #84014|84014|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-md-YYO, A-xmd-mu-YYO, A-mhs-YYO, A-mhsg-YYO, A-ml-YYO, A-mt-YYO, A-mtq-YYO, A-s-YYO, A-xs-bb-YYO, A-sh-YYO.|Metasedimentary rock, undivided; includes metamorphosed sandstone, siltstone, shale, chert, and local conglomerate; rare banded iron-formation and metabasite; foliated; schists including garnet and andalusite; deeply weathered||||N||18-SEP-23
Youanmi Terrane - schist #84012|84012|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Derived from WA IBG dataset, equivalent to the following map code: A-msqm-YYO.|Strongly foliated quartz-mica schist, commonly as discontinuous septa within granites.||||N||16-SEP-23
Youanmi Terrane - ultramafic rocks #84021|84021|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Neoarchean|2700||||Mesoarchean|3131|||||||No|||||||Incorporates the following map symbols derived from the WA IBG dataset: A-apu-YYO, A-ax-YYO, A-u-YYO, A-uk-YYO, A-mu-YYO, A-xmus-mtq-YYO, A-xmuk-mi-YYO, A-mus-YYO, A-musr-YYO.|Ultramafic rock; includes pyroxenite, serpentinite, peridotite, komatiite; metamorphosed; cumulate textures; interleaved quartzite; metachert and metamorphosed BIF; ultramafic schist; tremolite-chlorite-talc assemblages; deep weathering.||||Y||16-SEP-23
Yuinmery Volcanics Member|78358|||||Yes|Member, phase|Formal|Resvd name published|Briefly described|Yaloginda Formation|74803|||Mesoarchean||||eruption|Mesoarchean||||||||No|70140||Ivanic, T. (GSWA)|29-AUG-13|||Rays Rocks, Youanmi 100k sheets.  To use in the southern Murchison Domain. Age: c. 2815 Ma. Type area: 5km east of Yuinmery Hsd, lat 28deg34', long 119deg10'.|Felsic schist with local dacite to rhyolite lava, interlayered with metamorphosed BIF; locally strongly sheared.|metamorphosed acid igneous rock|||N||17-JAN-23
Yulleroo Formation|21066|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||Carboniferous||||deposition|Mississippian||||||||No|45153||||||May be part of, or lateral equivalent of Laurel Formation, informally named for Yulleroo-1 oil well?  In the Fitzroy Trough. Mentioned as Yulleroo Formation in Oil Basins Limited: IPO Presentation, June 2006 (Patersons Securities Ltd).|||||N||17-JAN-23
Yungul carbonatite|32788|||||Yes|Formation, beds|Informal|Other new published name|Briefly described|||||||||eruption|Neoproterozoic|1790|||||||No|44230||||||Seewah area. Kimberley Craton. Described in  Gwalani et al. (2010), RefID 67851 as dykes intruding the Hart Dolerite. Believed to be post early Cambrian.| Massive, calcite carbonatite that host very coarse, pegmatitic veins and pods of calcite.. Calcite-apatite-anatase rock.|exotic composition igneous rock|||Y||27-APR-23
Yurabi Formation|26251|||||Yes|Formation, beds|Formal|Other new published name|Defined|Louisa Downs Group|10676|||Ediacaran||||deposition|Ediacaran||||||320|WA|No|44398|48927|||||In the Louisa Basin. Age: less than 610Ma.|Glacigenic, medium-bedded, moderately to poorly sorted, fine- to medium-grained, ripple-laminated quartz sandstone interbedded with siltstone, mudstone, laminated dolomitic siltstone, and silty or sandy dolomite.|siliciclastic sedimentary rock|carbonate sedimentary rock||N||17-JAN-23
Zebra Hill Dolerite|80579|Zebra Hill Suite|73583|||Yes|Formation, beds|Reserved|Variation of published name|Reserved|||Radley Suite|68740|Mesoarchean|||inferred||Mesoarchean|2924||inferred|||||No|||Wingate, M.T.D. (GSWA)|03-JUL-18|||East-west striking gabbro and pyroxene dykes on PINDERI HILLS, cutting the Munni Munni layered intrusion (of Radley Suite). See also GSWA ENS: WINGATE, MTD and Hickman, AH (partial report), Zebra Hill Dolerite (A-STzh-xod-ax): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 01 August 2018, <www.dmp.wa.gov.au/ens>.|Dolerite and pyroxenite dyke.|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
Zeepaard Formation|75591|||||Yes|Formation, beds|Formal|Other new published name|Briefly described|||||Valanginian||||deposition|Valanginian||||||||No|12491||||||Carnarvon Basin unit. Similar age to Birdrong Formation? Between Barrow Group and Muderong Formation in age? ie Cretaceous.|Delta-front sandstones.|siliciclastic sedimentary rock|||N||17-JAN-23
Zeta Island Conglomerate|80930|||||Yes|Formation, beds|Reserved|Reserved|Reserved|||||Archean|||||Archean|||||||WA|No|||Doutch, D. (CODES, U Tas)|08-MAR-19|||1:250,000 Widgiemooltha SH51-14; 1:100,000 Lake Lefroy 3235. Previously included in Merougil Conglomerate, Kambalda area. Basal formation of the Lower Merougil Group. Conformably overlain by Triangle Island Sandstone Formation. Unconformably overlies the Morgans Island Formation of the Upper Black Flag Group. Proposed publication: Doutch, D. A., and Cas, R. A., 2019, Stratigraphic and facies architecture of the Neoarchaean Black Flag and Merougil Groups, Kambalda, Western Australia: Depositional and volcanic evolution of Late Archaean submarine fan to fan-delta sequences that host significant gold deposits.|Extensive sheet-like matrix supported polymictic conglomerates and massive volcanic quartz dominated sandstone.|siliciclastic sedimentary rock|||N||17-JAN-23
Ziggy Monzogranite|75513|||||Yes|Formation, beds|Formal|Resvd name published|Described|||||Mesoarchean||||intrusion|Mesoarchean|2832|4|isotopic, U/Pb-Pb/Pb ion probe|||||No|66121||Pawley, M. (GSWA)|02-SEP-09|||The Ziggy Monzogranite is a variably foliated monzogranite intrusion in the northeast corner of the Yilgarn Craton near the Dorothy Hills. The monzogranite has sheared contacts with the greenstones of the Dorothy Hills greenstone belt. The monzogranite has been dated at 2832 +/-4 Ma (GSWA SHRIMP age). The pluton has been named after Ziggy's Bore, located at 51J 586653 6898608, which is 1 kilometre south of the geochronology sample site. To be published = several GSWA publications, including 1:100 000 maps and geochronology reports.|Medium- to coarse-grained, seriate-textured monzogranite; variably foliated and metamorphosed.|acid intrusive rock|metamorphosed acid igneous rock||Y||17-JAN-23
Zimmermann Sandstone|21089|Zimmerman Sandstone|21087|||Yes|Formation, beds|Formal|Other new published name|Defined|Langfield Group|10161|||Tournaisian||||deposition|Tournaisian||||||140|WA|No|45038|45038|||||Defn on Tech File D/52-10. See also misspelling Zimmerman Sandstone.|Quartzose, feldspathic and lithic sandstone, minor siltstone and shale.|siliciclastic sedimentary rock|||N||17-JAN-23
Zulu Granodiorite|39502|||||Yes|Formation, beds|Formal|Resvd name published|Defined|||Emu Pool Supersuite|68766|Paleoarchean|3294|4|isotopic, U/Pb-Pb/Pb ion probe|intrusion|Paleoarchean|3299|3|isotopic, U/Pb-Pb/Pb ion probe||||WA|No|65726||Williams, I.|23-OCT-03||||White, light-grey to pinkish-grey, seriate to even-grained, in places weakly foliated, medium to coarse-grained biotite granodiorite, tonalite, and monzogranite. Metamorphosed.|acid intrusive rock|||Y||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
alluvium 74331|74331|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No||||||||Reworked or incised sandy alluvium in older stream channels; lateritised alluvium; alluvial terraces above younger alluvium; alluvial and colluvial outwash deposits not in defined channel systems; sand, silt, gravel, clay, evaporites|regolith|||N||17-JAN-23
altered kimberlites #84029|84029|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|2188|11|||Paleoproterozoic||||||||No|||||||Highly altered (serpentinisation and carbonation) rocks at Teutonic Bore and Turkey Well are inferred to be altered kimberlites based on the abundance of serpentine and carbonate, together with the absence of clinopyroxene in the groundmass (Choi et al. 2021, esp. pp199-202). Dating of yimengite at Turkey Well has yielded a date of 2188 ± 11 Ma (Kiviets et al., 1998), however this may reflect the date of a metasomatic event rather than the crystallization age.|Highly altered (serpentinisation and carbonation) rocks, inferred to be altered kimberlites based on the abundance of serpentine and carbonate, together with the absence of clinopyroxene in the groundmass. The lack of olivine is problematic.||||U||14-SEP-23
amphibolite 74266|74266|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Metagabbroic amphibolite, medium-grained, w remnant igneous texture, actinolite and/or hornblende plus calcic plagioclase.|metamorphosed basic igneous rock|||Y||17-JAN-23
amphibolite 74324|74324|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Amphibolite.|metamorphosed basic igneous rock|||U||17-JAN-23
amphibolite 74334|74334|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Amphibolite, mafic schist, mafic rock intercalated with granite, para-amphibolite; metabasalt, metagabbro, metapyroxenite and metadolerite; Youanmi Terrane|metamorphosed basic igneous rock|||N||17-JAN-23
amphibolite 78043|78043|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Unassigned amphibolite; locally prominent in most terranes of the Yilgarn Craton, except the Kalgoorlie and Kurnalpi Terranes.|Amphibolite, mafic amphibolites mostly derived from tholeiitic basalt and pillowed basalt; basalts are often associated with ultramafic amphibolites and para-amphibolites; rare compositional igneous layering|metamorphosed basic igneous rock|||N||17-JAN-23
amphibolite, metadolerite 74336|74336|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cryogenian|||||Stenian||||||||No||||||||Concordant bodies of dark grey to black amphibolite with relict dolerite texture in places|metamorphosed basic igneous rock|||N||17-JAN-23
amygdaloidal basalt 74338|74338|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Ectasian||||eruption|Ectasian||||||||No||||||||Dark green epidotised amygdaloidal basalt with quartz and calcite amygdales|basic volcanic rock|||N||17-JAN-23
andesite 74245|74245|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Meta-andesite, locally porphyritic; mafic to intermediate tuff, agglomerate, and volcaniclastic rocks, dacite|intermediate volcanic rock|igneous volcanic rock||N||17-JAN-23
anorthosite 74339|74339|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No||||||||Anorthosite; massive, fine to coarse grained, metamorphosed|basic intrusive rock|||Y||17-JAN-23
anthropogenic deposits 74790|74790|||||Yes|Formation, beds|Informal|Unnamed published|Mentioned|||||Holocene||||deposition|Holocene||||||||No|||||||A generic anthropogenic unit to replace Stratno 69829 (Qsm) for the Australian 1:1 million scale geology|Made ground, mining areas, mullock heaps|anthropogenic material|||N||17-JAN-23
artificial salt pans 74791|74791|||||Yes|Formation, beds|Informal|Unnamed published|Mentioned|||||Holocene||||deposition|Holocene||||||||No|||||||informal unit for the 1:1 million scale geology of Australia|Artificial salt evaporation pans|anthropogenic material|||N||17-JAN-23
banded iron formation 74347|74347|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No||||||||Banded quartz-magnetite rock and banded iron formation|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
banded iron formation and minor amphibolite 74257|74257|||||Yes|Formation, beds|Informal|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Metamorphosed oxide-facies banded iron formation, finely laminated amphibolite, ultramafic schist, quartz-magnetite-(grunerite-garnet) rock.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
banded iron formation, chert 74256|74256|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Banded quartz-magnetite rock, banded iron formation, ferruginous chert, chert, quartz-grunerite rock; minor jaspilite and silicified slate and shale, exhalite, phyllite, chert breccia, sandstone, siltstone, agglomerate, tuff, silicic volcanic rocks|non-carbonate chemical or biochemical sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
basalt, dolerite 74352|74352|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||eruption|Neoproterozoic||||||||No||||||||Basalt, amygdaloidal basalt, fine grained dolerite sills and dykes|basic volcanic rock|basic intrusive rock||N||17-JAN-23
bauxite 70593|70593|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No||||||||Bauxite, aluminous laterite|regolith|||N||17-JAN-23
biotite gabbro Champ-de-Mars 78181|78181|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||intrusion|Mesoproterozoic|1176|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Glikson, A.Y., Stewart, A.J., Ballhaus, C.G., Clarke, G.L., Feeken, E.H.J., Leven, J.H., Sheraton, J.W. and Sun, S.-s., 1996. Geology of the western Musgrave Block, central Australia, with particular reference to the mafic¿ultramafic Giles Complex. Australian Geological Survey Organisation, Bulletin, 239, 206 pp.  Un-named biotite gabbro intrusion, western Champ-de-Mars, south of Hinckley Range, western Musgrave (location: Lat 26.152599, Long 128.915336; AGD 66 co-ordinates 491537 E, 7107414 N).|Biotite-hornblende gabbronorite, leucogabbro|basic intrusive rock|||Y||17-JAN-23
black soil plain 68902|68902|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Cenozoic||||||||No|||Ollie Raymond, Alan Whitaker|10-MAY-05|||Lithology referring to an unnamed unit used for Queensland, Northern Territory and WA 1:1 million geological maps, National Maps Project|Residual black, dark grey or brown clayey soil|regolith|||N||17-JAN-23
breccia 74357|74357|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||deformation|Mesoproterozoic||||||||No||||||||Quartz or quartzite breccia in fault zones|fault or shear rock|||N||17-JAN-23
calc-silicate gneiss 74307|74307|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Calc-silicate gneiss, quartz-feldspar-clinopyroxene-hornblende paragneiss, plagioclase-quartz-tremolite-actinolite-clinopyroxene-microcline gneiss, tremolite-actinolite-hornblende-epidote-quartz-plagioclase gneiss, amphibolite; Narryer Terrane|metasedimentary carbonate rock|metamorphosed basic igneous rock||N||17-JAN-23
calc-silicate gneiss 74308|74308|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Diopside-epidote-plagioclase-microcline-titanite, with local garnet, magnetite and quartz; South-west Gneiss Terrane|metasedimentary carbonate rock|||N||17-JAN-23
calc-silicate gneiss 74361|74361|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Orosirian|||||Orosirian||||||||No||||||||Calc-silicate gneiss and schist, marble, dolomite and metadolomite, fine to medium grained actinolite and tremolite schist; Gascoyne region|metasedimentary carbonate rock|||N||17-JAN-23
calc-silicate gneiss, amphibolite 78049|78049|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned calc-silicate gneiss and amphibolite; local small outcrops on Newdegate (amphibolite) and Collie (calc-silicate gneiss) 1:250 000 sheets.|Calc-silicate gneiss and amphibolite; metamorphosed basaltic rocks; preserved pillow textures in amphibolites indicate volcanic origin for most of these rocks|metamorphosed basic igneous rock|high grade metamorphic rock||N||17-JAN-23
calc-silicate rock 74309|74309|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Calc-silicate rocks with diopside, actinolite, carbonate, epidote, plagioclase, microcline, biotite, quartz; quartz chlorite carbonate schist; chloritic metasediment|metasedimentary carbonate rock|||N||17-JAN-23
calc-silicate rocks 74306|74306|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Banded two-feldspar-epidote-actinolite-quartz rock; metamorphosed carbonate-rich sedimentary rocks, mainly dolomite; para-amphibolite.|metasedimentary carbonate rock|||N||17-JAN-23
calcrete 38497|38497|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Unnamed unit for the Australian 1:1 million scale surface geology map for National Maps Project.  Map symbol: Czk.|Calcrete, travertine; calcareous cementing of bedrock and transported materials; pisolitic to nodular or massive; as low mounds, in playa lakes, valley calcrete, or in subsurface; may contain intercalated chalcedony; locally dissected and karstified|regolith|||N||17-JAN-23
chert 74258|74258|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Pilbara Supergroup|15189|||Paleoarchean||||deposition|Paleoarchean||||||||No||||||||Chert, some as tectonic dykes|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
chert, banded iron formation 74259|74259|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Chert, iron-formation, quartz-grunerite-magnetite rock, quartz-magnetite-grunerite rock, quartz-magnetite-hypersthene rock, garnetiferous iron formation, magnetite-bearing quartzite.|non-carbonate chemical or biochemical sedimentary rock|||N||17-JAN-23
chert, banded iron formation 74260|74260|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Banded iron formation, chert, ferruginous chert. In places with jaspilite and red, black and white banded iron formation. Hornblende-grunerite-hematite-magnetite-quartz rock; schistose amphibolite and ultramafic schist; silicified and commonly lateritised|non-carbonate chemical or biochemical sedimentary rock|metamorphosed basic igneous rock||N||17-JAN-23
clastic sedimentary rocks 74363|74363|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cretaceous||||deposition|Cretaceous||||||||No||||||||Undivided siltstone, claystone and sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
clay 74364|74364|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No|||||||Used in AEM interpretation work.|Clay|regolith|||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
colluvium 74366|74366|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Quaternary||||||||No||||||||Clay and rock fragments washed into small lake-like depressions from surrounding slopes|regolith|||N||17-JAN-23
conglomerate 38504|38504|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Tsc (updated to Czcc)|Conglomerate, sandstone, lesser fine grained sedimentary rocks; locally ferruginised or silicified; includes impact crater-fill conglomerate, breccia and brecciated sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
conglomerate, sandstone 74370|74370|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mississippian||||deposition|Mississippian||||||||No||||||||Boulder, cobble and pebble conglomerate, and sandstone|siliciclastic sedimentary rock|||N||17-JAN-23
conglomerate, sandstone, shale 74356|74356|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||deposition|Neoproterozoic||||||||No||||||||Glaciogenic boulder conglomerate, sandstone, shale and porcellanite, occasional pebbles of dark green silicified oolite|siliciclastic sedimentary rock|||N||17-JAN-23
dacite porphyry 74372|74372|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Orosirian||||eruption|Orosirian||||||||No||||||||Fine-grained, massive or flow-banded dacite porphyry|acid volcanic rock|||U||17-JAN-23
deformed and altered rocks 74374|74374|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deformation|Archean||||||||No||||||||Phyllonite and mylonite in fault or shear zones; strongly deformed and carbonated felsic volcaniclastic, mafic, and ultramafic rocks|fault or shear rock|||N||17-JAN-23
dolerite 74215|74215|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||intrusion|Neoproterozoic||||||||No|||Whitaker, A. (GA)|22-APR-08|||Unnamed Neoproterozoic dolerite dykes|Unnamed mafic dykes; medium to coarse grained ophitic to subophitic dolerite and metadolerite, tholeiitic dolerite|basic intrusive rock|||Y||17-JAN-23
dolerite 74897|74897|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian||||intrusion|Cambrian||||||||No|||Raymond, O.L.||||Informal unit for WA 1:1 million geology map. Also used for NTGS's Tanami 1:250k sheet area, as a subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area.|Dolerite.|basic intrusive rock|||Y||17-JAN-23
dolerite Elizabeth Hills 78177|78177|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||magmatic crystallisation|Neoproterozoic|976|3|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named dolerite dykes (96496009) near Elizabeth Hills in the Mount Webb region, western Arunta (location: Lat 22.836960, Long 127.894780; AGD 66 co-ordinates 386461 E, 7473940 N). Wingate et al. (2000).|Dolerite, sulphide (pyrite, chalcopyrite)-bearing dolerite, gabbro centres and chilled margins; all dolerites are unmetamorphosed and unfoliated|basic intrusive rock|||Y||17-JAN-23
dolerite Marnda Moorn LIP 78176|78176|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Myers, J.S. and Hocking, R.M., 1998. Geological Map of Western Australia, 1:2 500 000 (13th Edition). Geological Survey of Western Australia, Perth. Un-named dolerite dykes and sills of the Marnda Moorn LIP (Fraser-Boyagin-Gnowangerup-Wheatbelt-Muggamurra Dyke Swarms).|Dolerite, quartz dolerite, quartz diorite, gabbro, leucogabbro, granophyre|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
dolerite Paraburdoo 78186|78186|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||magmatic crystallisation|Paleoproterozoic|2008|16|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named dolerite sills and dykes - Paraburdoo (location: Lat 23.23953176, Long 117.60215377). Müller, S.G., Krapez., B., Barley, M.E. and Fletcher, I.R., 2005. Giant iron-ore deposits of the Hamersley province related to the breakup of Palaeoproterozoic Australia: New insights from in situ SHRIMP dating of baddeleyite from mafic intrusions. Geology, 33, 577-580. Age from U-Pb (baddeleyite).|Dolerite|basic intrusive rock|||Y||17-JAN-23
dolerite Turee Creek 78185|78185|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||magmatic crystallisation|Paleoproterozoic|2208|10|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named dolerite sills and dykes - Turee Creek (location: Lat 23.20513193, Long 118.28122274). Müller, S.G., Krapez., B., Barley, M.E. and Fletcher, I.R., 2005. Giant iron-ore deposits of the Hamersley province related to the breakup of Palaeoproterozoic Australia: New insights from in situ SHRIMP dating of baddeleyite from mafic intrusions. Geology, 33, 577-580. Age from U-Pb (baddeleyite).|Dolerite|basic intrusive rock|||Y||17-JAN-23
dolerite, diorite 78119|78119|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Myers, J.S. and Hocking, R.M., 1998. Geological Map of Western Australia, 1:2 500 000 (13th Edition). Geological Survey of Western Australia, Perth. Un-named dolerite (Yalgoo dykes). Approximate age shown as 1210 Ma, max age 2500 Ma from Muhling & Low (1977).|Dolerite, diorite|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
dolerite, diorite 78120|78120|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||||Proterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Myers, J.S. and Hocking, R.M., 1998. Geological Map of Western Australia, 1:2 500 000 (13th Edition). Geological Survey of Western Australia, Perth. Un-named dolerite (Murgoo dykes).  Approximate age shown as 1210 Ma.|Dolerite, quartz dolerite, hornblende dolerite, diorite|basic intrusive rock|intermediate intrusive rock||Y||17-JAN-23
dolerite, gabbro 83730|83730|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||inferred||Proterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Proterozoic mafic intrusive unit' GSWA map symbol P_-od. Also surface/subsurface unit interpreted by Songfa Liu for the Neoproterozoic solid geology of Australia.|Dolerite dyke, sill, or plug; fine- to medium-grained dolerite and gabbro|basic intrusive rock|||Y||19-JAN-23
dolerite, gabbro Hasties Reward 78184|78184|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||magmatic crystallisation|Neoproterozoic|837|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Un-named dolerite/gabbro sill at Hasties Reward prospect (location: ~Lat 21.855, Long 122.129). Maidment, D., Huston, D., Maas, R., Czarnota, K., Neumann, N., McIntyre, A. and Bagas, L., 2008. The Nifty-Kintyre-Duke Cu-U-Pb-Zn mineralising events: links to the evolution of the Yeneena Basin, NW Paterson Orogen. In: GSWA 2008 Extended Abstracts: Promoting the prospectivity of Western Australia.|Dolerite, gabbro|basic intrusive rock|||Y||17-JAN-23
dolerite, metadolerite 74378|74378|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||intrusion|Mesoproterozoic||||||||No|||||||Also in Officer Basin and Albany-Fraser Province. Also now used for subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area (ie NT & Qld).|Undifferentiated dolerite and gabbro dykes and sills; local granophyric patches, noritic dolerite and gabbro, hornblendite, and minor hybrid rock with rapakivi texture; locally metamorphosed|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
dolerite, metagabbro 74261|74261|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Dolerite, gabbro, leucogabbro, local harzburgite; Metagabbro; medium- and coarse-grained; includes some serpentinite, metaperidotite and metapyroxenite layers; metaleucogabbro|basic 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
estuarine and delta deposits 38489|38489|||||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: Qe.|Estuarine, tidal delta and lagoonal deposits; coastal mud flats, silt and evaporite deposits; may contain older vegetated black soils|regolith|||N||17-JAN-23
estuarine, lagoonal, and lacustrine deposits 74394|74394|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No||||||||Estuarine, lagoonal, and lacustrine deposits. Numerous small lakes and swamps. Linear dunes common.|regolith|||N||17-JAN-23
feldspar porphyry 74330|74330|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||eruption|Mesoproterozoic||||||||No||||||||Brown and grey feldspar porphyry, cataclastically deformed in places; quartz-feldspar porphyry|igneous volcanic rock|||U||17-JAN-23
felsic and mafic volcanics 74395|74395|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Felsic and mafic volcanic rocks, some granite intercalations|acid volcanic rock|basic volcanic rock||N||17-JAN-23
felsic dykes 83724|83724|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Phanerozoic|||inferred||Phanerozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Phanerozoic felsic dykes, Map symbol IP-g. Also surface/subsurface unit interpreted by Songfa Liu for the Paleozoic solid geology of Australia|Porphyritic felsic igneous rock.|acid intrusive rock|||Y||19-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 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 74292|74292|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Undifferentiated felsic intrusive rocks, including monzogranite, granodiorite, granite, tonalite, quartz monzonite, syenogranite, diorite, monzodiorite, pegmatite. Locally metamorphosed, foliated, gneissic. Local abundant mafic and ultramafic inclusions|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
felsic intrusives 74396|74396|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic||||intrusion|Proterozoic||||||||No||||||||Undifferentiated felsic intrusives; granite, syenite, granodiorite, monzogranite, tonalite, diorite, granophyre, felsic rock|intermediate intrusive rock|acid intrusive rock||Y||17-JAN-23
felsic intrusives 74425|74425|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Biotite granodiorite and adamellite, tonalite and microtonalite, biotite granite, monzogranite, biotite-muscovite syenogranite and trondhjemite; sheets and veins of pegmatite. Local dark and light phases, and rafts or fragments of schist.|acid intrusive rock|||Y||17-JAN-23
felsic porphyry, rhyolite dykes 74287|74287|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Feldspar-phyric porphyry, rhyolite|acid volcanic rock|||Y||17-JAN-23
felsic schist 74319|74319|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Strongly foliated felsic rock, quartz-muscovite schist, quartz-feldspar schist probably derived from felsic volcanic or volcaniclastic rocks|metamorphosed acid igneous rock|||N||17-JAN-23
felsic to mafic volcanics 74398|74398|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Undifferentiated volcanics in the Youanmi Terrane, Yilgarn Craton|Felsic volcanic rocks with pyroclastics, mafic volcanic and intrusive rocks, porphyry, serpentinite, local ultramafics|acid volcanic rock|basic volcanic rock||U||17-JAN-23
felsic volcanic and volcaniclastic rocks 74288|74288|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Quartz-feldspar (meta-) porphyry, porphyritic microgranite; rhyolite, dacite, rhyodacite, andesite; agglomerate, breccia tuff; felsic schist; felsic volcanic and volcaniclastic rocks; dacite and rhyodacite tuff; dacite porphyry;|igneous volcanic rock|acid volcanic rock||N||17-JAN-23
felsic volcanic rocks 74291|74291|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||Stewart, A. J.||||Informal unit for Western Australia 1:1 million geological map|Felsic volcanic and volcaniclastic rocks, locally amygdaloidal or fragmental; dacite, quartz-feldspar porphyry, tuff, agglomerate, andesitic lava, quartz-muscovite schist, felsic schist, felsic gneiss|acid volcanic rock|igneous volcanic rock||N||17-JAN-23
felsic volcanic rocks and porphyry 74290|74290|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Plagiophyric dacite, felsic lavas and pyroclastics|acid volcanic rock|||N||17-JAN-23
felsic volcaniclastic mudstone, komatiite at Lordy Bore 78065|78065|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean|2799|2|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Lordy Bore felsic volcaniclastic mudstone conformably underlying komatiite, Youanmi Terrane, Murchison Domain (location Lordy Bore, south of Meekatharra, MGA Zone 50, 649946 E, 7032467 N; Long 118.508839, Lat -26.821293).Magmatic crystallisation age of felsic volcaniclastic rock lying directly and conformably beneath komatiitic rocks (interpreted by GSWA, 2009, to be ~age of (or very close) komatiitic sequence)|Komatiite, felsic volcaniclastic mudstone|ultramafic volcanic rock|fine grained siliciclastic rock||N||17-JAN-23
felsic volcaniclastic, basalt at Lake Wells 78060|78060|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||magmatic crystallisation|Archean|2961|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Lake Wells felsic volcaniclastic intercalated with basalt in Ulrich Range greenstone belt, Burtville Terrane on Strawbridge 1:100 000 Sheet (sample 193363, location ~400 m northwest of Lake Wells Homestead, MGA Zone 51, 51501110 E, 6981738 N; Long 123.011216, Lat -27.287344). Magmatic crystallisation age of volcaniclastic rock (meta-andesite) intercalated in lower part of thicker package of metabasalt and pillowed metabasalt (pers. comm., C. Hall, GSWA, 2009)|Amphibolite-facies metabasalt and pillowed metabasalt|metamorphosed basic igneous rock|acid volcanic rock||N||17-JAN-23
felsic volcanics 74289|74289|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Pilbara Supergroup|15189|||Paleoarchean||||eruption|Paleoarchean||||||||No||||||||Dacite, quartz-feldspar porphyry.|acid volcanic rock|||N||17-JAN-23
felsic volcanics 74904|74904|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Unnamed volcanics in the Narryer Terrane, WA.  Used in the 1:1 million surface geology of  Western Australia|Undivided felsic volcanics; metamorphosed; Narryer Terrane|acid volcanic rock|metamorphosed acid igneous rock||N||17-JAN-23
ferruginous duricrust 38498|38498|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Unit is to be used as part of a "standard set" of symbols for National Maps Project.  Map symbol: Czl.|Ferruginous duricrust, laterite; pisolitic, nodular, vuggy; may include massive to pisolitic ferruginous subsoil, mottled clays, magnesite, reworked products of ferruginous and siliceous duricrusts, calcrete, gossan; residual ferruginous saprolite|regolith|||N||17-JAN-23
gabbro 78068|78068|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||magmatic crystallisation|Archean|2714|5|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Unnamed gabbroic sill representing possible feeder to overlying basaltic flows and cuts the lower part of Woolyeenyer Formation, Kalgoorlie Terrane, near Norseman (location MGA Zone 51, 388137 E, 6440245 N; Long 121.813565, Lat -32.168729). Magmatic crystallisation age of granophyric dolerite dyke; dated sample is from granophyric phase within the dyke; coeval with 2664 ± 6 Ma Coates Siding gabbro in South West Terrane of Yilgarn Craton|Gabbro|basic intrusive rock|||Y||17-JAN-23
gabbro at Coates Siding 78067|78067|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||magmatic crystallisation|Archean|2664|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Coates Siding gabbro, Morangup greenstone belt, South West Terrane (approximate location (+/- 10 km) MGA Zone 50, 439920 E, 6493900 N; Long 116.366071, Lat -31.688647). Magmatic crystallisation age of gabbro; coeval with 2661 +/- 3 Ma Mount Vetters granophyric dolerite (Nelson, 1998); possibly coeval with 2669 +/- 11 Ma (Compston et al., 1986) Victory Dolerite in Kalgoorlie Terrane|Gabbro|basic intrusive rock|||Y||17-JAN-23
gabbroic intrusions 78500|78500|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Proterozoic||||intrusion|Proterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Distribution of inferred gabbroic intrusions under cover, interpreted (by GSWA) from magnetic and gravity anomalies in Albany-Fraser and Officer areas, and from drilling of similar anomalies in SA. From: D'Ercole, C., Lockwood, A.M., 2004. The tectonic history of the Waigen area, western Officer Basin, interpreted from geophysical data. Western Australia Geological Survey, Annual Review 2003-04, Technical Paper, 71-80 [RefID 69055]. Also used in: Hoatson, D.M., Claoue-Long, J.C., Jaireth, S., 2008. Australian Proterozoic Mafic-Ultramafic Magmatic Events: Sheets 1 and 2 (1:5000000 and 1:10000000 scale maps), Geoscience Australia, Canberra|Inferred gabbroic intrusions under cover|basic intrusive rock|||Y||17-JAN-23
garnet paragneiss 74441|74441|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||||Mesoproterozoic||||||||No|||||||Informal unnamed unit for the WA 1:1 million scale geology dataset.  Northhampton Block, Pinjarra Orogen.|Garnet paragneiss; Northhampton Block, Pinjarra Orogen|high grade metamorphic rock|||N||17-JAN-23
gneiss, granite 74400|74400|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Granitic gneiss, microgranite, porphyritic granite, rapakivi granite, syenite, diorite|high grade metamorphic rock|acid intrusive rock||N||17-JAN-23
gneiss, granulite, migmatite 74310|74310|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Banded granitic gneiss (monzogranitic to granodioritic), quartzofeldspathic gneiss with mafic bands, migmatite, granofels, mafic and felsic granulites, hypersthene-plagioclase-quartz granulite; schist, pelitic or mafic granofels|high grade metamorphic rock|||N||17-JAN-23
granite 30721|30721|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||The Granites Supersuite|30715|Paleoproterozoic|||||Paleoproterozoic||||||||No|29811||||||Tanami 1:250 000 sheet area. Tanami Province. See also 79/03448, Kimberley-Mt Isa 1:2.5mill map?|Medium to coarse biotite and muscovite granite; minor gabbroic rocks|acid intrusive rock|||Y||17-JAN-23
granite 35716|35716|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|30954||||||Used by Proterozoic Granites Project  - granitic rock unassigned. Rb/Sr age 2615 Ma.|Granites: not subdivided - locally porphyritic, commonly foliated; unknown mutual relationships; abundant pegmatites in places.|acid intrusive rock|||Y||17-JAN-23
granite 74407|74407|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Winburn Suite|35719|Stenian||||intrusion|Stenian||||||||No||||||||Quartz microcline microperthite with rare plagioclase|acid intrusive rock|||Y||17-JAN-23
granite gneiss - high-Ca type 74313|74313|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Banded to agmatitic felsic and/or granitic gneiss, migmatite; high-Ca group.|high grade metamorphic rock|||N||17-JAN-23
granite, gneiss, migmatite 74404|74404|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No||||||||Undivided granite, gneiss and migmatite; foliated felsic rock|acid intrusive rock|high grade metamorphic rock||Y||17-JAN-23
granite, pegmatite 74405|74405|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No||||||||Granite, metagranite, Equigranular to porphyritic granite; leucocratic granite; biotite granite with potassium feldspar phenocrysts in places; foliated adamellite; mixed granitic rocks; dioritic rocks|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
granitic gneiss - High-HFSE group 74312|74312|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Granitic gneiss; high-HFSE group|high grade metamorphic rock|||Y||17-JAN-23
granitic gneiss - low-Ca type 74315|74315|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Migmatite; low-Ca group.|high grade metamorphic rock|||Y||17-JAN-23
granitic gneiss 74406|74406|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Winburn Suite|35719|Stenian||||intrusion|Stenian||||||||No||||||||Sheared gneissic granite|acid intrusive rock|||Y||17-JAN-23
granitoid migmatite 74369|74369|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Leucogranite-monzogranite-tonalite-granodiorite-granulite migmatite, interlayered and gneissic to weakly foliated. Mafic ('pelitic') melanosome.|high grade metamorphic rock|||Y||17-JAN-23
granophyre 74408|74408|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Winburn Suite|35719|Stenian||||intrusion|Stenian||||||||No||||||||Granophyre|acid intrusive rock|||Y||17-JAN-23
granophyric dolerite at Kaluweerie 78069|78069|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||magmatic crystallisation|Archean|2627|6|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Kaluweerie granophyric dolerite from Sir Samuel 1:250 000 Sheet and Depot Springs 1:100 000 Sheet (sample 142859, location MGA Zone 51, 232490 E, 6918470 N; Long 120.284044, Lat -27.831784). East-trending dyke that has intruded monzogranite; metamorphosed to very low grade indicating intrusion may have post-dated regional greenschist facies metamorphism. Magmatic crystallisation age of granophyric dolerite dyke.|Granophyric dolerite|intermediate intrusive rock|||Y||17-JAN-23
granulite, gneiss 74316|74316|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Mafic and felsic granulites: hornblende-plagioclase-hypersthene granulite, quartz-feldspar-biotite gneiss with lenses of schist, amphibolite, ultramafic rock, banded iron formation, quartzite; quartz-feldspar-hornblende layered gneiss|high grade metamorphic rock|||N||17-JAN-23
granulite, migmatite 78046|78046|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned high-grade granulite and migmatite metamorphic rocks; very minor mafic components of amphibolite in felsic hosts; many occurrences on Moora, Perth, Pinjarra, and Collie 1:250 000 sheets; restricted to South West Terrane. Metamorphic overprints at 2649 Ma and 2640 Ma (Wheat Belt region) and 2671 to 2654 Ma (Saddleback Greenstone belt).|Granulite and migmatite; high-grade metamorphic rocks; amphibolite and hornblendite (Am and Amh units on Pinjarra and Perth 1:250 000 sheets) in granite and migmatitic granite host.|high grade metamorphic rock|||U||17-JAN-23
hi-Ca granite 74296|74296|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Monzogranite, granodiorite, tonalite, quartz monzonite; in places recrystallised and foliated; some mixed granite and country rock assemblages; high-Ca granite|acid intrusive rock|intermediate intrusive rock||Y||17-JAN-23
high grade metamorphic rocks 74341|74341|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Garnet-biotite-quartz-feldspar augen gneiss, migmatite, quartz-feldspar granofels, metadolerite; granitic gneiss; ultramafic, mafic, and felsic granulites; banded granulite; felsic gneiss, granite, banded gneiss|high grade metamorphic rock|acid intrusive rock||U||17-JAN-23
high-HFSE granite 74295|74295|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Granite; some mixed granite and country rock assemblages; High-HFSE Granite|acid intrusive rock|||Y||17-JAN-23
hornfels 74301|74301|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Hornfelsed psammitic and pelitic rocks with sillimanite, biotite, garnet; pyroxene hornfels.|metasedimentary siliciclastic rock|||N||17-JAN-23
hornfels 74302|74302|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Hornblende-diopside(-epidote)(-grossular)-quartz hornfels, mafic hornfels, fine grained amphibolite.|metasedimentary rock|metamorphosed basic igneous rock||N||17-JAN-23
hydrothermal unit 83798|83798|||||Yes|Member, phase|Unnamed|Unnamed published|Briefly described|||||unknown|||||Mesoproterozoic|1171||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Proterozoic--Phanerozoic hydrothermal unit', P_IP-zqix. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Quartz vein breccia with goethite-hematite infill.|rock|||N||30-JAN-23
interlayered basalt and rhyolite-dacite 78044|78044|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned Interlayered basalt and rhyolite-dacite; one isolated occurrence indicated for solid geology polygons in northwest corner of Kurnalpi 1:250 000 Sheet area (but not evident on Kurnalpi 1:250 000 Geological Sheet (Swager, 1996); interbedded basaltic schist, amphibolite, and felsic schist unit (Abf) occurs as north-trending outcrops in east Kurnalpi sheet)|Interlayered basalt and rhyolite-dacite; bimodal mafic and felsic sequence|basic volcanic rock|acid volcanic rock||N||17-JAN-23
interlayered iron formation and tremolite schist 74413|74413|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Banded iron formation (quartz-grunerite-magnetite rock) interlayered with talc-chlorite-tremolite schist|non-carbonate chemical or biochemical sedimentary rock|metamorphosed ultramafic rock||N||17-JAN-23
interlayered pelitic and psammitic schist, gneiss and quartzite 74415|74415|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Undivided pelitic and psammitic schist (Quartz-chlorite-muscovite, cordierite-kyanite-sillimanite, garnet-biotite-chlorite, quartz-mica, quartz-kyanite, quartz-cordierite), gneiss and quartzite.|metasedimentary siliciclastic rock|||N||17-JAN-23
intermediate volcanic and volcaniclastic rocks 74244|74244|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Intermediate volcanic and volcaniclastic rocks, intermediate schist; basaltic andesite; andesite, meta-andesite, commonly porphyritic, locally carbonate-altered|intermediate volcanic rock|igneous volcanic rock||N||17-JAN-23
kimberlite #84027|84027|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||||Neoproterozoic||||||||No|||||||More than 30 kimberlite pipes and dykes located within the Northern Kimberley region of Western Australia. Divided into five clusters: Ashmore-Bulgurri-Dioro, Berkeley, Delancourt, Pteropus and Seppelt. More than half of intrusions are diamondiferous. Age ~800 Ma.  Jaques and Milligan, 2004, p792, 793 especially, RefID 75076.|Kimberlite pipes and dykes.||||Y||14-SEP-23
kimberlite 74421|74421|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Kimberlite dyke|exotic composition igneous rock|||Y||17-JAN-23
komatiitic, minor basaltic rocks 78054|78054|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|2692|4|inferred, overlying unit|eruption|Archean|2711|5|inferred, underlying unit|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Unassigned komatiitic and minor basaltic rocks; includes ~2705 Ma komatiitic rocks (Kambalda Komatiite), Norseman-Wiluna greenstone belt, Kalgoorlie Terrane; GSWA sample 100726, location MGA Zone 51, 387730 E, 6594360 N; Long 121.826723, Lat -30.778474).Max age: footwall dacite unit to komatiite flow. SHRIMP U-Pb zircon, Nelson (1997). Min age: overlying tuffaceous shale of Kapai Slate, south of Lake Lefroy. SHRIMP U-Pb zircon Claoué-Long et al. (1988). Also dating of Direct age of fragmental felsic tuff (GSWA no. 100726) intercalated in komatiite (Kambalda Komatiite), Bulong; supported by many U-Pb zircon ages, e.g., 2708 +/- 7 Ma coeval dacite in komatiite, Ballarat¿Last Chance mine (Nelson, 1997), 2704 +/- 4 Ma and 2706 +/- 5 Ma rhyolite in komatiite and 2708 +/- 5 Ma.|Komatiite; minor basalt; dolerite; various olivine-bearing cumulates and spinifex-textured ultramafic rocks; high MgO (upto 45% MgO) flows near the base to less magnesian (15 to 35% MgO) spinifex-textured flows at top of sequence|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-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
limestone 36655|36655|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Eocene||||deposition|Eocene||||||||No|23756||||||Christmas Island, 1967|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36656|36656|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36657|36657|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36658|36658|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36659|36659|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36660|36660|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967|Limestone - undifferentiated|carbonate sedimentary rock|||N||17-JAN-23
limestone 36661|36661|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Miocene||||deposition|Miocene||||||||No|23756||||||Christmas Island, 1967. Age - Miocene or younger.|Limestone|carbonate sedimentary rock|||N||17-JAN-23
limestone 36662|36662|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Cenozoic||||||||No|23756||||||Christmas Island, 1967.|Limestone - undifferentiated|carbonate sedimentary rock|||N||17-JAN-23
limestone 36663|36663|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||deposition|Cenozoic||||||||No|23756||||||Christmas Island, 1967.|Pinnacles of limestone with variable amounts of Czp (unconsolidated material)|carbonate sedimentary rock|||N||17-JAN-23
limestone 74902|74902|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Quaternary||||deposition|Quaternary||||||||No||||||||Coastal coralline limestone, coral shingle, aeolianite, lime-cemented shelly sand, dune sand, beach conglomerate|regolith|||N||17-JAN-23
limestone 75599|75599|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Eocene||||deposition|Eocene||||||||No|||Raymond, O.L.|12-FEB-10|||A summary unit comprised of all the Tertiary limestone units from the 1967 Christmas Island geology map.  Used in the 1:1M surface geology of Australia (2010 release)|Limestone, including pinnacles of limestone with variable amounts of interstitial phosphatic soil|carbonate sedimentary rock|||N||17-JAN-23
limestone and sandstone 74426|74426|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Llanvirn||||deposition|Llanvirn||||||||No||||||||Fossiliferous red or mottled pink/white marine limestone, calcarenite and sandstone|carbonate sedimentary rock|siliciclastic sedimentary rock||N||17-JAN-23
limestone scree and colluvium 72824|72824|||||Yes|Formation, beds|Informal|Unnamed published|Unpublished|||||Quaternary||||deposition|Quaternary||||||||No|||||||Particularly developed on the Nullarbor Limestone in WA and SA|Clay and rock fragments washed into depressions from limestone slopes|regolith|||N||17-JAN-23
low-Ca granite 74297|74297|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Syenogranite, alkali-feldspar granite, monzogranite; in places recrystallised; some mixed granite and country rock assemblages; low-Ca granite|acid intrusive rock|||Y||17-JAN-23
lunette dunes 72955|72955|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Quaternary|||||Quaternary||||||||No|||||||Used in the 1:1 million scale Surface Geology of Australia dataset. GSNSW prefers to use 'aeolian lunette' for this unit.|Quartz and gypsum dunes and mounds (kopi); may include minor silt, sand, gravel, and clay flats adjacent to playas; locally includes some playa sediments|regolith|||N||17-JAN-23
mafic and felsic volcanic rocks 74427|74427|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Basalt, dolerite, felsic volcanic rocks, amphibolite|basic volcanic rock|acid volcanic rock||N||17-JAN-23
mafic dykes 75600|75600|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Cambrian||||intrusion|Mesoproterozoic||||||||No|||Raymond, O.L.|12-FEB-10|||Unit erected to gather together mafic dykes of north-central WA (eg, Nullagine, Balfour Downs, Robertson 250K sheets) which have variously been mapped as Davis Dolerite or as unnamed Cambrian, Neoproterozoic and Mesoproterozoic dykes. For the 1:1M Surface geology of Australia.|Undifferentiated Mesoproterozoic to Cambrian mafic dykes; dolerite, metadolerite.  Includes rocks that may have been otherwise mapped as Davis Dolerite or Glenayle Dolerite.|basic intrusive rock|||Y||17-JAN-23
mafic extrusive rocks 74248|74248|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Basalt, high-Mg basalt, minor mafic intrusive rocks; some andesite; agglomerate; mafic schist; amphibolite; dolerite; komatiitic basalt; carbonated basalt; basaltic andesite; mafic rock interleaved with minor granitic rock|basic volcanic rock|basic intrusive rock||N||17-JAN-23
mafic extrusive rocks 74255|74255|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Metabasalt, high-Mg basalt, tholeiitic basalt, carbonated basalt, agglomerate, mafic schist, dolerite, amphibolite; porphyritic basalt and dolerite; komatiitic basalt; mafic pyroclastics; minor mafic schist with granite intercalations|basic volcanic rock|||N||17-JAN-23
mafic granite 74298|74298|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Granite; mafic granite|acid intrusive rock|||Y||17-JAN-23
mafic granulite 74429|74429|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic|1305|8|isotopic, U/Pb-Pb/Pb ion probe||Mesoproterozoic|1590||isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit also used in the Mafic-Ultramafic Event Series dataset 2013. Musgrave Complex (granulite facies Musgravian basement gneiss). No absolute age of mafic-ultramafic rocks. Min age from Glikson et al. (1996). Max age from Wade et al. (2006).|Mafic granulite, with interleaves of monzogranitic gneiss|high grade metamorphic rock|||N||17-JAN-23
mafic intrusive rock 78051|78051|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned mafic intrusive rock, metadolerite (+/- metabasalt and metagabbro)|Mafic intrusive rocks, metadolerite, minor metabasalt and metagabbro|basic intrusive rock|||Y||17-JAN-23
mafic intrusive rock 83731|83731|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||unknown|||||unknown||||||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'mafic intrusive unit' GSWA map symbol od. They show the age range as Archean to Phanerozoic. Also surface/subsurface unit interpreted by Songfa Liu for all layers in the solid geology of Western Australia.|Dolerite dykes, sills, or plugs; fine- to medium-grained dolerite.|basic intrusive rock|||Y||19-JAN-23
mafic intrusive rocks 74263|74263|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Mafic intrusive rocks, medium to coarse-grained; layered mafic to ultramafic intrusions - dolerite, gabbro, olivine gabbro, peridotite, pyroxenite, leucogabbro, quartz dolerite, quartz gabbro, gabbronorite|basic intrusive rock|||Y||17-JAN-23
mafic intrusive rocks 74270|74270|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoarchean||||intrusion|Paleoarchean||||||||No||||||||Mafic intrusive rocks, medium to coarse-grained; layered mafic to ultramafic intrusions; metadolerite; medium to coarse-grained metagabbro, dolerite and granophyre, local ultramafic bases|basic intrusive rock|||Y||17-JAN-23
mafic intrusives 72360|72360|||||Yes|Formation, beds|Unnamed|Unnamed published|Described|||||Paleoproterozoic|||inferred|intrusion|Paleoproterozoic|||inferred|||||No|||||||Lithology referring to an informal unnamed unit to be used for Northern Territory 1:1 million geological map, National Maps Project. Also to be used for a subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area.|Dolerite, gabbro, norite; dykes, sills, small intrusions; may be metamorphosed or partly metamorphosed to amphibolite|basic intrusive rock|||Y||17-JAN-23
mafic metamorphic rocks 74337|74337|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|||||||Used in WA and NT, for Surface Geology 2012 and Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area.|Amphibolite, metadolerite, metagabbro, hornblende schist|metamorphosed basic igneous rock|||U||17-JAN-23
mafic to intermediate rocks - Coanjula #84026|84026|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|||||||Assorted mafic to intermediate rocks in the Coajula area. Described in Reddicliffe et al (1995) and mentioned in Lee et al. (1994). To be used in GA alkaline rocks data compilation and other products.|Includes alkali basalt diatremes, quench-textured high-K andesites, and high MgO shoshonitic (kentallenite) intrusives||||Y||14-SEP-23
mafic to ultramafic rock 74430|74430|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Ultramafic chlorite-actinolite rock, amphibolite, amphibole-pyroxene rock|metamorphosed ultramafic rock|metamorphosed basic igneous rock||Y||17-JAN-23
mafic, ultramafic and metasedimentary rocks 74414|74414|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Interlayered metabasaltic amphibolite, graphite-muscovite schist, phyllite, grunerite-magnetite-quartz rock, fuchsite quartzite, quartz-plagioclase-hornblende schist and gneiss, ultramafic dykes and sills|metamorphosed igneous rock|metasedimentary rock||N||17-JAN-23
mafic, ultramafic, intermediate intrusions 74431|74431|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic||||intrusion|Paleoproterozoic||||||||No||||||||Dolerite, gabbro, norite, pyroxenite, peridotite, diorite, tonalite; locally metamorphosed; rare biotite rock, amphibolite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
mafic-ultramafic intrusion Loongana 78182|78182|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||magmatic crystallisation|Mesoproterozoic|1415|7|isotopic, U/Pb-Pb/Pb ion probe|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Loongana mafic-ultramafic intrusion, 475 km east of Kalgoorlie, covered body in Eucla Basin-Nullarbor Plain (location: Lat 30.51623, Long 126.648; GDA 94 co-ordinates 274304 E, 6621657 N). Bunting, J.A., 2007. Albany-Fraser and sub-Eucla: a new but not-so-remote frontier. PowerPoint presentation at Proterozoic Mineralisation in Western Australia Conference, 11 June 2007. Australian Institute of Geoscientists, Western Australian Branch, 1-8. Magmatic crystallisation age of metagabbro; gneissic granite has 1407+/- 7 Ma, 1408 +/- 7 Ma U-Pb zircon ages; 1801 Ma xenocryst in granite.|Gabbro, olivine gabbro, pyroxenite, dunite, dolerite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
metagranite 74436|74436|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Pitjantjatjara Supersuite|39078|Mesoproterozoic||||intrusion|Mesoproterozoic||||||||No||||||||Metamorphosed granite, metaleucogranite, metasyenogranite, metamonzogranite; locally porphyritic or mylonitic; garnet coronas around mafic minerals|acid intrusive rock|||Y||17-JAN-23
metamorphosed clastic sedimentary rocks 74437|74437|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Metasandstone, metashale, metasiltstone, metaconglomerate and meta-volcaniclastics, pelitic schists, phyllite, fuchsitic quartzite with clasts quartzite and felsic volcanic rock; quartzite; pelitic and psammitic gneiss|sedimentary rock|igneous volcanic rock||N||17-JAN-23
metamorphosed felsic igneous rocks 74318|74318|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Metamorphosed feldspar porphyry and undifferentiated felsic volcanic rocks; quartz-feldspar schist and quartz-muscovite schist derived from felsic volcanic rock or granite|igneous volcanic rock|acid volcanic rock||U||17-JAN-23
metamorphosed mafic igneous rocks 74246|74246|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Metamorphosed mafic igneous rocks undivided|metamorphosed basic igneous rock|||U||17-JAN-23
metamorphosed mafic intrusive rock 78050|78050|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned metamorphosed mafic intrusive rock, metagabbro, metadolerite; prominent throughout most greenstone belts in the Yilgarn Craton.|Metamorphosed mafic intrusive rock, metagabbro, metadolerite; includes pyroxene phyric and plagioclase phyric zones; often associated with basalt and serpentinised peridotite and olivine cumulates|metamorphosed basic igneous rock|||Y||17-JAN-23
metamorphosed mafic rocks 74326|74326|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Fine to medium grained amphibolite, strongly foliated metamorphosed mafic rock, some metagabbro, metapyroxenite and metadolerite. Massive to schistose, relict sub-ophitic texture in places|metamorphosed basic igneous rock|metamorphosed ultramafic rock||U||17-JAN-23
metamorphosed mafic rocks 74327|74327|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Metamorphosed mafic rocks; metabasalt, metagabbro, metadolerite, amphibolite, mafic schist; minor metamorphosed ultramafic rocks and metasedimentary rocks; amphibolite schist; quartz-sericite schist, volcaniclastic rocks, local granitic dykes and veins|metamorphosed basic igneous rock|metamorphosed ultramafic rock||U||17-JAN-23
metamorphosed mafic volcanics 78042|78042|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned metamorphosed mafic volcanic rocks; one of the most dominant mafic rock types throughout most greenstone belts in the Yilgarn Craton; often in close spatial association with unassigned ultramafic rocks (AYl(u)); stratigraphic formation names not formalised and ages generally not accurately determined therefore will be attributed Undefined Event|Mafic volcanic rocks with minor mafic and ultramafic intrusive rocks|basic volcanic rock|basic intrusive rock||N||17-JAN-23
metamorphosed ultramafic rocks 74284|74284|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Tremolite-chlorite-talc schist, talc rock|metamorphosed ultramafic rock|||U||17-JAN-23
metamorphosed ultramafic rocks 74286|74286|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Metamorphosed komatiite, pyroxenite, chlorite-tremolite schist, talc-chlorite schist, anthophyllite-tremolite-talc rock; olivine-cummingtonite schist; talc-carbonate-tremolite-chlorite rock, serpentinite; amphibole schist after pyroxenite|ultramafic volcanic rock|metamorphosed ultramafic rock||N||17-JAN-23
metamorphosed ultramafic rocks 74438|74438|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic|||||Mesoproterozoic||||||||No||||||||Ultramafic intrusive rocks including serpentinite, tremolite rock and pyroxenite|metamorphosed ultramafic rock|||Y||17-JAN-23
metamorphosed ultramafic rocks 78052|78052|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoarchean|||||Mesoarchean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned metamorphosed ultramafic rocks; prominent throughout most Archean greenstone belts in the Yilgarn Craton; stratigraphic formation names not formalised and ages are likely to range from ~?2.9 to ?2.7 Ga, therefore these polygons will be attributed Undefined Event.|Metamorphosed ultramafic rocks dominant; komatiite; high-Mg komatiite, high-Mg basalt, minor basalt; dolerite; various olivine-bearing cumulates and spinifex-textured ultramafic rocks|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
metamorphosed ultramafic to mafic rocks 74283|74283|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoarchean||||intrusion|Paleoarchean||||||||No||||||||Metamorphosed ultramafic to mafic rocks; ultramafic schist; metaperidotite, metapyroxenite, serpentinite; komatiitic and boninitic metabasalt, metagabbro, metadolerite, amphibolite; minor metasedimentary rocks, tectonic megabreccia|metamorphosed ultramafic rock|metamorphosed ultramafic rock||Y||17-JAN-23
metapelitic and metapsammitic rocks 74439|74439|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Metamorphosed sandstone, shale, siltstone, conglomerate, volcaniclastics; fuchsite-quartz rock; schist and metapsammite; quartzite, quartz-aluminosilicate rock, phyllite, slate, chert|metasedimentary siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
metasandstone, metasiltstone 74440|74440|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No||||||||Siltstone, sandstone|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
metasedimentary and metavolcanic rocks 74525|74525|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||eruption|Mesoproterozoic||||||||No||||||||Quartzite, quartz-mica schist (some is deformed granitoid), quartz conglomerate, quartzite with kyanite, sillimanite, muscovite, or magnetite, phyllitic schist, quartz-mica-garnet schist, slate, phyllite, feldspar porphyry, basalt|metasedimentary siliciclastic rock|metamorphosed acid igneous rock||N||17-JAN-23
metasedimentary rocks 74515|74515|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No||||||||Foliated quartzite, in places micaceous, shale, phyllite, slate, meta-sandstone with ripples and cross-beds, and meta-shale.|metasedimentary siliciclastic rock|fine grained siliciclastic rock||N||17-JAN-23
metasedimentary siliciclastic rocks 83736|83736|||||Yes|Subgroup|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||inferred||Archean|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Archean--Proterozoic metasiliciclastic unit' AP_-mtq-WAC. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia.|Quartzite and quartz-rich metasedimentary rock.|metasedimentary rock|||N||30-JAN-23
migmatite, granulite 78070|78070|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). See also Hocking et al. (1985). Capricorn Orogen.|Migmatite; granulite|high grade metamorphic rock|||N||17-JAN-23
moderately magnetic rocks 80285|80285|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Proterozoic|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area.|Unknown.|unknown|||U||17-JAN-23
moderately magnetic rocks 80639|80639|||||Yes|Formation, beds|Unnamed|Unnamed published|Unpublished|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|||||||Subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area. Bloods Range and Ayers Rock/Uluru 1:250k sheet areas, also used in WA.|Unknown.||||U||25-SEP-23
mylonite 74454|74454|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||deformation|Mesoproterozoic||||||||No||||||||Mylonite and blastomylonite; predominantly felsic and typically garnet-bearing; Musgrave Block|fault or shear rock|||N||17-JAN-23
orthogneiss 35955|35955|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Rudall Complex|26880|Kalkan Supersuite|31780|Mesoproterozoic|||||Archean||||||||No|23364||||||Songfa Liu advised us that this will be used on:'Pre-Permian solid geology map of the Paterson area' CEB Jun-2009. Informal unit to be used for central Australia solid geology interpretation [A. Schofield Apr 2013].|Compositionally layered orthogneiss derived from fine to medium-grained granite or monzogranite; contains alternating biotite and feldspar-rich layers; local lenticular inclusions of metamorphosed mafic, ultramafic and sedimentary rocks.|metamorphosed acid igneous rock|||N||17-JAN-23
orthogneiss 35956|35956|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Rudall Complex|26880|Kalkan Supersuite|31780|Proterozoic|||||Proterozoic||||||||No|23364||||||Used in Proterozoic Granites Project. Songfa Liu advised us that this will be used on:'Pre-Permian solid geology map of the Paterson area' CEB Jun-2009|Biotite granodioritic orthogneiss.|metamorphosed acid igneous rock|||N||17-JAN-23
orthogneiss 74314|74314|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Sisters Supersuite|68741|Mesoarchean|||||Mesoarchean||||||||No||||||||Tonalitic orthogneiss with sheets of monzogranite|high grade metamorphic rock|acid intrusive rock||N||17-JAN-23
pelitic and psammitic sedimentary rocks 74240|74240|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No|||Stewart, A.|30-APR-08|||Includes former Hatfield Formation.|Conglomerate, chert, small amounts felsic volcaniclastic rocks, sandstone, quartzite, siltstone, phyllite, schist, pelite, shale.  Includes the former Hatfield Formation.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
pelitic schist, quartzite 74460|74460|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Semipelitic schist, pelitic schist (muscovite-garnet-andalusite(-staurolite)(-corundum) assemblages), quartzite, fuchsite quartzite, chlorite-actinolite schist, schistose quartz-rich metasediments|metasedimentary siliciclastic rock|metamorphosed ultramafic rock||N||17-JAN-23
pelitic to psammitic schist 74461|74461|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No||||||||Pelitic to psammitic schist; includes muscovite-quartz-andalusite-garnet-plagioclase-biotite schist.|metasedimentary siliciclastic rock|||N||17-JAN-23
pellet limestone 36669|36669|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Holocene||||deposition|Holocene||||||||No|23756||||||Christmas Island, 1967.  Also used in 2010 release of 1:1M surface geology of Australia|Pellet limestone, containing pellets and pebbles of phosphate rock|carbonate sedimentary rock|||N||17-JAN-23
peridotite 78053|78053|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned peridotite and serpentinised peridotite as small outcrops in Kurnalpi Terrane locally on Kurnalpi and Edjudina 1:250 000 geological sheets; stratigraphic formation names are not formalised and ages are not accurately determined, therefore these polygons will be attributed Undefined Event.|Peridotite; commonly serpentinised; cumulus olivine textures|ultramafic intrusive rock|metamorphosed ultramafic rock||Y||17-JAN-23
phosphate rock 36665|36665|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary|||||Quaternary||||||||No|23756||||||Christmas Island, 1967.|Phosphate rock - massive, boulder, and pebble deposits||||N||17-JAN-23
phosphatic soil 36670|36670|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Holocene||||deposition|Holocene||||||||No|23756||||||Christmas Island, 1967 map.  Also used in 2010 release of 1:1M surface geology of Australia.|Unconsolidated material - mostly phosphatic soil containing >20% P2O5.|regolith|||N||17-JAN-23
phosphatised "volcanics" 36664|36664|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Quaternary||||eruption|Quaternary||||||||No|23756||||||Christmas Island, 1967.|Phosphatised "volcanics"||||N||17-JAN-23
quartz breccia 74467|74467|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||alteration|Paleoproterozoic||||||||No||||||||Quartz vein breccia|metasomatic rock|||N||17-JAN-23
quartz vein 72678|72678|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Proterozoic||||alteration|Proterozoic||||||||No|||||||Used for Northern Territory and WA 1:1 million geological maps, National Maps Project.|Quartz vein|metasomatic rock|||N||17-JAN-23
quartz vein 74468|74468|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||alteration|Mesoproterozoic||||||||No||||||||Vein quartz, in places metamorphosed|metasomatic rock|||Y||17-JAN-23
quartz vein 83735|83735|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||unknown|||||unknown||||||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as Hydrothermal unit zq. Shown as Archean - Phanerozoic age. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|Quartz vein or pod; massive, crystalline, or brecciated|metasomatic rock|||Y||30-JAN-23
quartz veins and pods 74317|74317|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||alteration|Archean||||||||No||||||||Vein quartz, coarse to fine-grained (where recrystallised), locally brecciated|metasomatic rock|||Y||17-JAN-23
quartz-muscovite schist 74485|74485|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Quartz-muscovite schist in contact zones next to granites|metamorphosed acid igneous rock|||N||17-JAN-23
quartzite, schist 74463|74463|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|Pilbara Supergroup|15189|||Archean|||||Archean||||||||No||||||||Quartzite, schist, paragneiss; may include some meta-igneous rocks|metasedimentary siliciclastic rock|||N||17-JAN-23
quartzofeldspathic gneiss 74409|74409|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||||Mesoproterozoic||||||||No|||||||Informal unnamed unit for WA 1:1million geology dataset; Northampton Block, Pinjarra Orogen|Quartzofeldspathic gneiss; Northhampton Block, Pinjarra Orogen|high grade metamorphic rock|||N||17-JAN-23
residual loam and kankar 72823|72823|||||Yes|Formation, beds|Informal|Unnamed published|Unpublished|||||Quaternary||||deposition|Quaternary||||||||No|||Stewart, A.J. (GA)|19-FEB-07|||Used in Australian 1:1 million geology data, particularly developed on the Nullarbor Limestone in southern WA and SA|Residual (eluvial) loam,  clay, silt, sand with sheet and nodular kankar; weathering product over limestone|regolith|||N||17-JAN-23
rhyolite and dacite sheets 74497|74497|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Orosirian||||eruption|Orosirian||||||||No||||||||Fine -grained, schistose to massive, hornblende-bearing rhyolite to dacite sheet-like intrusions; flow-banded at margins|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
sandstone 74489|74489|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic|||inferred|deposition|Cenozoic|||inferred|||||No|||||||Unnamed unit used in the 2010 Surface Geology of Australia dataset.  Replaced by more general unit 'sedimentary rocks 72357' for 2012 Surface Geology, but this more specific WA unit still useful, and used in 2022 for AEM interpretation.|Fossiliferous terrestrial sandstone; sandstone and silcrete; quartz-lithic-pebbly-gritty sand|siliciclastic sedimentary rock|regolith||N||17-JAN-23
sandstone, minor conglomerate 74491|74491|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Upper Jurassic||||deposition|Upper Jurassic||||||||No||||||||Strongly cross-bedded medium to coarse sandstone and minor conglomerate|siliciclastic sedimentary rock|||N||17-JAN-23
sandstone, siltstone 74531|74531|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Triassic||||deposition|Triassic||||||||No|||||||Originally used only in Canning Basin, but extended to Bonaparte Basin for subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area in 2018.|Undivided weathered sandstone and siltstone|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
sandstone, siltstone and shale 74526|74526|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Permian||||deposition|Permian||||||||No||||||||Undivided sandstone, siltstone and shale|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
schist, amphibolite 74428|74428|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Chlorite-actinolite schist, quartz-muscovite schist, amphibolite; minor andalusite-muscovite schist, phyllite|metasedimentary siliciclastic rock|metamorphosed basic igneous 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
sedimentary rocks 74322|74322|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Phyllitic schist, siltstone, sandstone, greywacke, pelite, conglomerate, quartzite, phyllite, shale, slate, claystone, chert, minor felsic volcanic and volcaniclastic rocks; arkose, para- and orthoamphibolites; rare banded iron formation|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
sedimentary rocks 74435|74435|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesozoic||||deposition|Mesozoic||||||||No|||||||Previously used for both Perth and Canning Basins, but  'Canning Basin - sedimentary rocks 82856' now created for that basin.|Coarse fluvial sandstone and siltstone with conglomerate; cross-bedded in places|siliciclastic sedimentary rock|fine grained siliciclastic rock||N||17-JAN-23
sediments 72683|72683|||||Yes|Formation, beds|Unnamed|Unnamed published|Described|||||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No|||||||Unit to be used for Northern Territory 1:1 million geological map, National Maps Project. Also used for subsurface unit interpreted by Songfa Liu for the basement geology of the Exploring for the Future area in WA, and Qld.|Undifferentiated sedimentary rocks; sandstone, siltstone, shale, conglomerate, limestone, quartzite|siliciclastic sedimentary rock|||N||17-JAN-23
shale 81335|81335|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Silurian|||inferred||||||||289.6||No|||||||Interpreted for EGGS database, intersected in borehole Alice 1 (ENO 5701) at a depth of 355.09m. Published in https://d28rz98at9flks.cloudfront.net/159/Bull_100.pdf|Shale.|fine grained siliciclastic rock|||N||17-JAN-23
sheared granite 74499|74499|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||Paperbark Supersuite|31788|Orosirian||||intrusion|Orosirian||||||||No||||||||Mylonitised porphyritic and non-porphyritic monzogranite and granodiorite|acid intrusive rock|||Y||17-JAN-23
silcrete 42026|42026|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No|||||||Lithology referring to an unnamed unit to be used for the Australian 1:1 million geological map, National Maps Project.|Silcrete, silicified gravel, siliceous duricrust, siliceous breccia; opaline silica, jasperoidal chalcedony, local chrysoprase caprock over ultramafic rock|regolith|||N||17-JAN-23
siliciclastic metasedimentary rocks 74529|74529|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Neoproterozoic|||||Neoproterozoic||||||||No||||||||Undivided phyllitic siltstone, sandstone and quartzite, strongly cleaved with minor quartz veining, silicified ?basalt|metasedimentary siliciclastic rock|||N||17-JAN-23
siliciclastic sedimentary rocks 74321|74321|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Sedimentary rocks, metamorphosed, undivided; includes oligomictic and polymictic conglomerate, pebbly sandstone, mudstone, siltstone, chert, local mafic schist, phyllite;|sedimentary rock|||N||17-JAN-23
siliciclastic sedimentary rocks 74527|74527|||||Yes|Group, Suite|Unnamed|Unnamed published|Briefly described|||||Proterozoic|||inferred|deposition|Proterozoic|||inferred|||||No|||||||In RefID 73116. (GSWA (2020). 1:500 000 Interpreted Bedrock Geology of Western Australia, as 'Proterozoic siliciclastic rocks', P_-sz-WAC. Also surface/subsurface unit interpreted by Songfa Liu for the Pre-Neoproterozoic solid geology of Australia|siliciclastic rocks; sandstone, conglomerate, siltstone and microbial laminate; commonly silicified and brecciated.|fine grained siliciclastic rock|siliciclastic sedimentary rock||N||17-JAN-23
strongly magnetic rocks 79902|79902|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Paleoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area. See also 'Proterozoic rocks - undivided - highly magnetic 74563' used for Basement Geology of Northern Queensland.|Unknown.|unknown|||U||17-JAN-23
strongly magnetic rocks 79935|79935|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Mesoproterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area, Also Songfa Liu for WA. See also 'Proterozoic rocks - undivided - highly magnetic 74563' used for Basement Geology of Northern Queensland.|Unknown.||||U||25-SEP-23
strongly magnetic rocks 80284|80284|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Proterozoic|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area.|Unknown.|unknown|||U||17-JAN-23
syenite, monzonite 74299|74299|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Syenite, alkali-feldspar syenite, hornblende quartz monzonite, syenogranite, monzogranite; syenite group|intermediate intrusive rock|acid intrusive rock||Y||17-JAN-23
syenogranite, monzogranite 74498|74498|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||The Granites Supersuite|30715|Statherian||||intrusion|Statherian||||||||No||||||||Muscovite and biotite adamellite|acid intrusive rock|||Y||17-JAN-23
talus 36671|36671|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Quaternary|||||Quaternary||||||||No|23756||||||Christmas Island, 1967. No map symbol letters|Talus||||N||17-JAN-23
tuffaceous sandstone 74304|74304|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No|||||||Informal unit for Western Australia 1:1 million geological map|Very fine-grained tuffaceous sandstone with mafic volcanic clasts; felsic sedimentary rocks|siliciclastic sedimentary rock|||N||17-JAN-23
two-pyroxene mafic granulite, Lake Grace greenstone belt 78066|78066|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean|2798|16|isotopic, U/Pb-Pb/Pb conventional|||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Two-pyroxene mafic granulite, Lake Grace greenstone belt, South West Terrane (Wilde, 2001) (location 33 km northeast of Katanning, MGA Zone 50, 585668 E, 6288785 N; Long 117.922676, Lat -33.537113).Concordant conventional multigrain zircon U-Pb isochron age interpreted to be magmatic age of original basalt (precursor to 2-pyroxene mafic granulite)|Mafic granulite (2 pyroxene)|high grade metamorphic rock|||N||17-JAN-23
ultrabasic sills, Lyons River 78080|78080|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|1679|6|inferred, structural relationship||Paleoproterozoic||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013.1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Lyons River ultrabasic sills (and Spider Hills sills), just north of Lyons River (Approximate location: MGA: 420812 E, 7347726 N). Folded sills around E-SE-trending shallow-plunging folds. Minimum age based on dated fenitised Pimbyana Granite adjacent to ultramafic sill, Pearson (1996; unpublished).|Ultramafic rocks associated with alkali metasomatism|ultramafic igneous rock|metasomatic rock||Y||17-JAN-23
ultramafic and meta-ultramafic rock 74281|74281|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Tremolite-actinolite-chlorite rock +/- carbonate, serpentinite, ultramafic schist, tremolite-chlorite schist, tremolite-chlorite-talc schist, talc-chlorite-tremolite rock, peridotite, talc carbonate chlorite serpentinite schist|metamorphosed ultramafic rock|||U||17-JAN-23
ultramafic and minor mafic rocks 74475|74475|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Tremolite-chlorite-talc amphibolite, metapyroxenite, pyroxenite, peridotite, serpentinite, ultramafic schists, komatiite, high-Mg basalt; also chalcedony, silica, jasper, silcrete, silica cap rock on ultramafic rocks|ultramafic intrusive rock|metamorphosed ultramafic rock||N||17-JAN-23
ultramafic lamprophyre, orangeite #84024|84024|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic|||||Paleoproterozoic||||||||No|||||||after Choi et al., 2021, RefID 75074. p199, 202 in particular. At Lara, Melrose Akbar, Melita and Granny Smith (and possibly Norseman) within the Eastern Goldfields, and Jewill and Bulljah in Earaheedy Basin of Western Australia. Age ~2000 Ma.|alkaline ultramafic rocks: ultramafic lamprophyres w porphyritic texture, abundant phenocrysts of phlogopite and olivine, replaced by chlorite, serpentine and/or carbonate; orangeite (micaceous kimberlite)  w abundant phlogopite phenocrysts.||||Y||14-SEP-23
ultramafic rocks 74474|74474|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Metamorphosed ultramafic rocks: metaperidotite, amphibole rock, serpentinite, metapyroxenite, silica cap rock, ultramafic schists|metamorphosed ultramafic rock|metamorphosed ultramafic rock||Y||17-JAN-23
ultramafic rocks 74478|74478|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Ultramafic schist, metapyroxenite, serpentinite, serpentinised/altered peridotite and dunite; local meta-gabbro; highly altered, mostly schistose|metamorphosed ultramafic rock|metamorphosed ultramafic rock||Y||17-JAN-23
ultramafic rocks 74479|74479|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Serpentinised peridotite, pyroxenite|metamorphosed ultramafic rock|||Y||17-JAN-23
ultramafic rocks 74480|74480|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Komatiite, peridotite, ultramafic schists, serpentinite, pyroxenite, dunite, amphibolite after pyroxenite; silica cap rock; local u/m pyroclastics; dolerite-textured high-Mg basalt, metapyroxenite and serpentinised peridotite|ultramafic intrusive rock|ultramafic volcanic rock||U||17-JAN-23
ultramafic rocks, gabbronorite 74513|74513|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Orosirian||||intrusion|Orosirian||||||||No||||||||Undivided mafic and ultramafic intrusives; troctolite, olivine gabbro, olivine gabbronorite, peridotite|basic intrusive rock|ultramafic intrusive rock||Y||17-JAN-23
ultramafic schist 74282|74282|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||intrusion|Archean||||||||No||||||||Ultramafic schist derived from serpentinised peridotite and pyroxenite, actinolite-chlorite schist.|metamorphosed ultramafic rock|metamorphosed ultramafic rock||Y||17-JAN-23
ultramafic volcanics, basalt, schist 78045|78045|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No|||||||Unnamed unit used in the Mafic-Ultramafic Event Series dataset 2013. Geological Survey of Western Australia, 2001. 1:500 000 Interpreted Bedrock Geology Map of Western Australia, Geological Survey of Western Australia (June 2001). Unassigned ultramafic volcanic rock, komatiitic basalt, high-Mg basalt, and tremolite-chlorite-talc schist; prominent as small linear outcrops on Kurnalpi and Widgiemooltha 1:250 000 sheets in Kurnalpi Terrane; minor occurrences on Barlee 1:250 000 Sheet in Youanmi Terrane.|Ultramafic volcanic rocks, komatiitic basalt, high-Mg basalt, and tremolite-chlorite-talc schist; includes variolitic and pyroxene spinifex-textured layers, local pillow structures|ultramafic volcanic rock|basic volcanic rock||N||17-JAN-23
undetermined rocks #84089|84089|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Neoproterozoic|||||Mesoproterozoic||||||||No|||||||Used in GA Solid geology pre-Neoproterozoic layer WA 2023. Assumed to be interpreted from unspecified geophysics.|Unknown.||||U||25-SEP-23
undetermined rocks #84090|84090|Mesoproterozoic undivided 80646|80646|||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|||||||Used in GA Solid geology pre-Neoproterozoic layer WA 2023. Assumed to be interpreted from unspecified geophysics.|Unknown.||||U||25-SEP-23
undetermined rocks 74517|74517|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Mesoproterozoic||||deposition|Mesoproterozoic||||||||No||||||||Undetermined rocks mapped by photo-interpretation||||U||17-JAN-23
undivided metamorphosed igneous and sedimentary rocks 74367|74367|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||eruption|Archean||||||||No||||||||Komatiitic basalt, quartz-muscovite-andalusite schist, basalt, dacitic porphyry, granite with greenstone rafts, agglomerate, talc schist, banded gneiss, quartzite, amphibolite, schist, ultramafic rocks, banded iron formation, dolerite, granite|basic volcanic rock|metamorphosed ultramafic rock||N||17-JAN-23
undivided rocks 74484|74484|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean|||||Archean||||||||No||||||||Metagranite, granite, gneiss, migmatite, dolerite, gabbro, basalt, silicic volcanic rocks, chert, amphibolite, banded iron formation, quartz-rich metasedimentary rocks, calc-silicate rock, ultramafic rocks, schist; weathered Archean rock|metamorphosed acid igneous rock|acid intrusive rock||U||17-JAN-23
undivided rocks 74514|74514|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Paleoproterozoic||||deposition|Paleoproterozoic||||||||No||||||||Probably sedimentary rocks; outcrops not visited|sedimentary rock|||N||17-JAN-23
undivided sedimentary and volcanic rocks 74481|74481|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Undivided sedimentary (non-volcanic) and felsic volcanic rocks|sedimentary rock|igneous volcanic rock||N||17-JAN-23
undivided sediments 74488|74488|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Cenozoic||||deposition|Cenozoic||||||||No||||||||Undivided poorly consolidated sediments: colluvium, weathered rocks, alluvium, sand, silt, clay, lacustrine and swamp deposits; silcrete, ferricrete, calcrete; ?shallow-marine sediments|sedimentary rock|regolith||N||17-JAN-23
volcanic and sedimentary rocks 74483|74483|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Rhyodacitic porphyry, volcaniclastic rocks, tuff, para-amphibolite, quartzite, mafic schist, amphibolite, felsic volcanic rocks, mafic volcanic rocks, banded iron formation, siliciclastic rocks, ultramafic rocks, chert|sedimentary rock|igneous volcanic rock||N||17-JAN-23
volcaniclastic rocks 74303|74303|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Archean||||deposition|Archean||||||||No||||||||Felsic (silicic or intermediate) volcaniclastic conglomerate, sandstone, tuff, breccia; metasedimentary rock derived from or with felsic volcanogenic provenance; minor volcanic rocks and quartz-feldspar schist.|igneous volcanic rock|acid volcanic rock||N||17-JAN-23
volcanics 36654|36654|||||Yes|Formation, beds|Unnamed|Unnamed published|Briefly described|||||Eocene||||eruption|Paleocene||||||||No|23756||||||Christmas Island, 1967.  Also used on 1:1M Surface geology of Australia (2010 release)|Volcanics; mostly basalt, some tuff and scoria|basic volcanic rock|||N||17-JAN-23
weakly magnetic rocks #84091|84091|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||||Mesoproterozoic||||||||No|||||||Used in GA Solid geology pre-Neoproterozoic layer WA 2023.|Unknown.||||U||25-SEP-23
weakly magnetic rocks 79881|79881|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Mesoproterozoic|||inferred||Paleoproterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area,  province undetermined. Used in NT and Walsh 1:250k sheet area, QLD. Also WA.|Unknown.|unknown|||U||17-JAN-23
weakly magnetic rocks 80286|80286|||||Yes|Formation, beds|Unnamed|Unnamed published|Mentioned|||||Proterozoic|||inferred||Proterozoic|||inferred|||||No|||||||Subsurface unit interpreted by Alastair Stewart for the basement geology of the Exploring for the Future area.|Unknown.|unknown|||U||17-JAN-23
