1Ý:Ý100Ý000 GEOLOGICAL SERIES GEOLOGICAL SURVEY OF SHEET 2954

120^00' 10' 20' 120^30' Mount Edgar Homestead 24 km 96 98 ä00 02 04 06 08 ä10 12 14 16 18 ä20 â90 92 94 22 24 26 28 ä30 32 34 36 38 ä40 Geological boundary 21^30' 340 35 21^30'

ñWpft 15 ñWwfa ñGcstq 30 20 30 PADDY MARKET FORMATION

ñWecc ñrb ñGccc ñWeb Police ñFh ñFhsg exposed......

340 Órg d d 400 420 ñWpcch ñWs ñFhsg 320 îì20 Ôaa Ôao 420 ñWeb ñWwftc ñrsef ñrft 440 ñog ñWecc Órk Ôaa ñWwb Ôw Ôc Ôs ñGpcic Thinly bedded banded iron-formation interbedded with ferruginous chert; weakly metamorphosed Fault Sandy 35

50 60 85 Órf 60 ñggop ñggo ñWebk Ôc ñFhscp 10 400 exposed...... ñWecc 75 ek 60 400 70 300 320 400 Óc d ñuc re 340 360 ñWecc 460 Creek

Órk C ñWcbd d ñWwcc 20 40 340 ñFhb CORBOY FORMATION thrust or reverse fault; triangle on upthrown side...... 50 ñWecc 360 ñggop Ôaa 340 Ôaa Alluvial sand and gravel in rivers and creeks; clay, silt, and sand in channels on floodplains d d 65 ñWeb 30 340 ñGcstq Quartz sandstone, fuchsitic quartz sandstone, banded chert, sandstone, basal cobble to pebble polymictic conglomerate; weakly m

ñWpfa 420 Ôaa q 20 20 Blue Bar Pool etamorphosed strike-slip, showing relative horizontal displacement...... 18 360 Órz 85 ñWeb ñggo 40 80 65 ñWwcc Cu ñWwf 0 ñFhb 40 Ôao Overbank deposits; alluvial sand and silt on floodplains adjacent to main drainage channels; minor clay and gravel ñWpcch 400 Órk 80 d d 60 25 ñWecc ñWecc 55 ñog 10 32 concealed...... 70 360 ñggop landing ground 380 ñFr Ôw Sheetwash depositsÝ_Ýclay, silt, sand, and pebbles on distal outwash fans; no defined drainage 50 Wallabirdee Ridge ñFhsh QUATERNARY Charteris q Ôaa ñWecc (abd) concealed, position uncertain...... ? ?

d Gorge Creek Group 80 ñFhsh ñFrscp Supergroup

d ñWpcch q 400 Ôc ColluviumÝ_Ýsand, silt, and gravel on outwash fans; scree and talus ñgOcamh Órz ROAD ñGpcic q ñWecc q ñW(cc) ñGccc Banded and ferruginous chert, black carbonaceous shale, and minor siltstone; weakly metamorphosed Creek Cu,Ag Cu,Zn,Ag,Au 50 Fold, showing axial surface trace and generalized plunge direction ñgOmo 20 ñWecc 460 360 Bridget 360 18 Ôs Sandplain depositsÝ_Ýeolian sand in undulating sheets ñWpft ñWebk Ôaa 420 ñGcstq 50 ñFrscp 440 ñWed ñggo ñggop ñWecc ñWwfa anticline; exposed, concealed...... d 65 85 q Zn,Cu 40 ñWecc ñWeccp

40 Órz 40 ñWecc ñWed 400 70

400 Cu,Ag,Au ñWecc syncline; exposed, concealed...... 420 A ñGcstq ñWecc 360 Ôaa 10 d ñFr Creek Órz ñWebk ñup ñW(ft) BAR ñWwft 70 Órf 380 Órk ñggop Óag Óaf Óc KURRANA GRANITOID COMPLEX overturned anticline, exposed...... d 440 50 Cu ñWwfa ñWeb q ñWed 300

16 Óag d ñWcbk Óc 40 360 ñW(cc) 3199Ê3178 Ma ì ñgKge GOLDEN EAGLE ORTHOGNEISS: layered orthogneiss derived from monzogranite, granodiorite, tonalite and pegmatite; alternating biotite- overturned syncline; exposed...... 340 d d r

ñWeb 320 and feldspar-rich layers: includes layers and lenses of amphibolite and ultramafic schist 420 ñWeb ñWecc

d d ñeb 50 50 Cu ñWeccp Small-scale fold axis, showing trend and plunge ñWwcc 460 ñggop 70 Óc 500 400 Ag ñWecc ñup Óag Alluvial gravel, sand, and silt derived from granitoid rock; consolidated and dissected 48 60 ñWwfa 20 ñWeccp CAINOZOIC anticline......

ñWwcc 340 ñWecc 40 ñWecc Cu,Mo PHANEROZOIC

ñgOmo 65 460 Óaf Pisolitic, ferruginous channel deposits; limonite, goethite, and hematite deposits; along palaeodrainage lines dissected by recent drainage; contains fossil wood in places 50 d 30 420 400 ñWebk ñWeccp 50 16 syncline...... d ñWecc MARBLE ñux 40 80

d ñWs ñggo Óc ColluviumÝ_Ýsand, silt, and gravel on outwash fans; scree, talus; consolidated and dissected S 30 ñWebk 320 S-vergence...... 60 Stoney ñogq Cu,Mo 420 ñogq ñb ñba ñbk ñcc ñsc ñscu ñsw ñft

ñWecc Gobbos Z

d 50 ñWecc ñWebk Z-vergence...... 42 Ôaa 420 420 ñggo 400

Ôaa 60 70 70 ñeb 60 420 50 ñWpft 70 ñWebk Cu,Mo ñWecc RIVER 10 Ôaa 440 Bedding, showing strike and dip S x d 14 60 ñog 30 Órf Órg Órk Órz ñogq 48

d d 65 ñWwfa ñggo 440 Órk ñW(bk) Gabbro, quartz-phyric, fine to medium grained; foliated and metamorphosed inclined...... q 440 85 ñWpft ñWeccp Óc ñWs Órk ñWebk ñb Basalt; generally pillowed; minor massive komatiitic basalt; metamorphosed 80 40 Cu UWA 2954 ñWecc 380 overturned...... ñWs ñWecc Cu,Ag 400 70 ñWecc 50 40 70 ñWeccp ñba Amphibolite and chloriteÊactinolite schist GSWA 110090 440 ñWs ñWs ñggop trend of bedding......

d 480 ñog Órf Ferruginous duricrust; includes massive, pisolitic, and nodular laterite, including some transported material ñgl 30 30 60 14 ñbk Komatiitic basalt and minor basalt; massive and pillowed; metamorphosed Palaeocurrent, showing trend and direction d d 70 ñWecc 50 Óc ñWebk Órg Relict eluvium and colluvium; sand, gravel, and silt overlying and derived from granitoid rock; variably consolidated; dissected Unassigned ñWecc 20 ñWpft ñWeb ñcc Layered chert; typically ferruginous; metamorphosed r

340 440 340 from asymmetrical ripple marks, direction known...... 460 Órk Residual calcrete; massive, nodular, and cavernous limestone; dissected

d Ôaa x d ñWwftc 340

Spinaway ñWebk440 400 ñsc Pebble conglomerate; minor cobble conglomerate, sandstone, and siltstone; metamorphosed

420 60 340 400 from cross-bedding, direction known......

20 30 ñGpcic Ôaa Órz Silcrete; siliceous caprock with angular quartz and chert clasts ñog 420 NMF 454 380 Óc ñWecc ñogq 360 ñscu Pebble conglomerate, sandstone, siltstone, and minor layered chert and thin-bedded felsic tuff with interlayered ultramafic rock; metamorphosed 5 Órk Way-up indicator

12 d 400 483 m 65 40 d ñux Órk ñWecc d 420 ñeb 440 d 70 ñFrsh ñux 60 Cu ñsw Fine- to medium-grained wacke, siltstone and shale; commonly with graded bedding; probable turbidite deposits; metamorphosed pillow structure...... 420 ñeb 35 60 360 d ñWs 320 ñft Thin-bedded felsic tuff, fine to medium grained; metamorphosed 420 360 400 graded bedding...... ñux 500 Órf ñgl Ôaa ñWeb 400 Ôaa d 400 1803 Ma â ìgBgh Hornblende-Ýand biotite-bearing quartz syenite to quartz monzodiorite; fine grained, porphyritic 60 ñWpfa COPPER GORGE FORMATION cross-bedding...... 60 Ôc ñWpfa ñWeb 12 d 440 ñgco Metamorphic foliation, showing strike and dip

ñFdb Bridget Suite

d 380 Órz ñgl q ñWwssz ñeb Basalt; generally pillowed; minor massive komatiitic basalt; metamorphosed ñWpcch ñWecc 300 82 Ôaa Pilbara Supergroup inclined...... 60 15 ñWpcc ñog 380 d ñFrsh 50 Brt ñWecc PROTEROZOIC trend of foliation...... d 10 S 45 McPhee Creek d q îì10 65 380 Óc ñWeccp Cleavage, showing strike and dip 420 Órf Fe d q < c. 3308 Ma å BUDJAN CREEK FORMATION

15 15 Óc ñup Óc 50 ñWpcch 440 10 B 420 Ôaa Ôaa inclined...... Z Óc ñWebc ñrft Dacitic tuff with quartz and feldspar phenocrysts ñWpft ñWebk P I L B A R A M I N E R A L F I E L D vertical...... ñWs 70 x 45 380 d d 400 60 ñog ñux d ñWebd d Dolerite dyke Stretching lineation, showing trend and plunge

20 ñGpcic q îì10 Creek Z q 45 d ñWecc 25 q 20 q q Quartz vein, various ages; contains barite in veins that intrude COOKE CREEK MONZOGRANITE ñrsef Felsic volcaniclastic sandstone, shale, and local grey, white, and black chert, minor dacitic tuff; weakly metamorphosed inclined...... d 50 McPhee ñeb q 380 Axis of crenulation, showing trend and plunge 50 ñWebd 400 d ñFrscp 15 25 M A R B L E B A R D I S T R I C T ñWecc ñWpfa 40 30 q inclined...... 27 ño Óc 50 Ôaa Copper Gorge ñrb Basalt, generally pillowed; minor komatiitic basalt, massive; weakly metamorphosed 08 30 50 60 NULLAGINE 8 ñeb ñWpfa ñWebc q NULLAGINE

440 q Órf q BeddingÊcleavage intersection lineation, showing trend and plunge ñWpft 420 460 c. 2717 Ma ä ñFm MADDINA FORMATION: massive, vesicular, and amygdaloidal basalt and andesite, with silicified flow tops d 75 500 Zn Spinaway Well 440 390 m ñWecc 420 ñWecc 24

Fe 400 10 q inclined......

ñWecc ñWeb ñux ñWebk W q ñWecch 440 TUMBIANA FORMATION Airphoto lineament ñWpftd 360 Cu,Zn Órf Cu,Ni

q 50 ñWs 40 Cu,Ag q Ôaa 08 400 ñGcstq 65 ñWpfa 0 Zn,Pb q fracture pattern...... 400 35 ñeb c. 2719 MaÝå ñFtt Mingah Member: pisolitic mafic tuff, and tuffaceous siltstone and sandstone; thin carbonate units 400 20 20 ñWeb 460 W q ñggo ñggop ñgObo ñgOmo ñgOcamh Stromatolite fossil locality...... 40 50 ñsw 70 ñWpft q 178015 ñFr 50 Au Isotopic age determination site with identification number...... 30 400 Brt q 50 UWA MP1 d q ñFtc Meentheena Member: carbonate rock 06 ñWecc landing ground c. 3313 Ma ò ñggo GOBBOS GRANODIORITE: 75 0 q biotite granodiorite and monzogranite with minor hornblende; medium grained, seriate to locally porphyritic; metamorphosed Road, unsealed...... 20 20 40 20 (abd) W 70 Au ñWpft 400 ñWs W ñggop QuartzÊfeldspar porphyry of dacitic composition; minor hornblende; metamorphosed

ñWecc Creek Ôaa 65 460 Dam ñus ñWpcc Major track...... ñus Creek ñWpft Óc q ìgBgh ñFk KYLENA FORMATION: CORUNNA DOWNS GRANITOID COMPLEX 70 460 ñWebx 70 40 400 c. 2741 Ma è massive, vesicular, and amygdaloidal basalt; some pillow lava and columnar jointing; minor basaltic agglomerate Track...... 80 d Órk Reedies Creek 340 ñWecc ñWecc McPhees ñogq ñeb 360 06 70 ñogq Cu,Mo ìgBgh c. 3315 Ma ò ñgObo BOOBINA PORPHYRY: quartzÊfeldspar porphyry; minor hornblende; metamorphosed Fence, generally with track...... ñeb 400 340 Óc 80 420 Au 380 Gorge W q ñgOmo Óc Au ñgt ñgt ìgBgh ìgBgh Ôc ñWeb MONDANA MONZOGRANITE: very fine- to medium-grained leucogranite; quartz rich, minor biotite; equigranular to sparsely feldspar porphyritic; metamorphosed Powerline...... 65 10 q ñgco ñFkbi Massive and amygdaloidal basaltic andesite; minor basalt and andesite; rare basaltic fragmental rock ñFhsw ñog 340 q 3317Ê3313 Ma ìÝò ñgOcamh CARBANA MONZOGRANITE: hornblende monzogranite; fine to medium grained, even grained to slightly porphyritic; metamorphosed 60 ñogq 80 320 W Townsite, population less than 1000...... Nullagine Ôaa 40 20 ñWpfa ñWpft Copper q q q Building......

Órk 400 04 ñWebk 50 ñWpfa Reedy 80 ñbk 380 360 HARDEY FORMATION ñWecc Pb,Ag q q ñux ñWeb Yard...... Yard ñgObo q ñus ìgBgh 30 ñogq ìgBgh ñFhs Sandstone, conglomerate, shale, felsic tuff, and ooidal and pisolitic beds; rare basalt 60 Órk Óc ìgBgh Cookes Creek ñW(cc) ñW(ft) ñW(bk) ñW(bkl)

ñFr ñWpft q Microwave repeater station......

ñFr 460 ñeb 360 ñeb W,Fl 400 McPhee Creek Well Horizontal control; major, minor......

30 d q 04

400 ñWpfa 80 3 ñupd 380 ñWpfa q 60 50 ìgBgh ñux 2764Ê2756 Ma ê ñFh Fine- to coarse-grained sandstone and pebble to cobble conglomerate; commonly arkosic, cross-bedded; minor mudstone, shale, siltstone, and felsic tuff ñW(cc) Grey chert and silicified rock of uncertain origin; metamorphosed Contour line, 20 metre interval...... d 40 Cu 75 Brt Ôaa ñWwft 380 d Creek ñbk Big Hill W q Watercourse with ephemeral pool or waterhole......

Cookes Creek Cookes Unassigned Asbs Ni 70 ñcc ñft ñW(ft) Fine- to medium-grained, thin-bedded felsic tuff; local grey and white chert derived from silicified ash; metamorphosed 400 ñWpft Au,Ag,Pb Ôaa ñbk ñgg W W ñcc Pool...... Pool

380 ñog NMF 455 Óc Cu ñWpft W ñW(bk) Komatiitic basalt; pyroxene spinifex texture; carbonate altered and metamorphosed 487 m Ni Órf W 380 ñFhsg Pebble to cobble conglomerate interbedded with medium- to coarse-grained sandstone 02 20 80 360 ìgBgh Rockhole...... Rockhole

20 ìgBgh ñft ñW(bkl) Komatiitic basalt, commonly pillowed, with local pyroxene-spinifex texture and zones of carbonate alteration; includes some mafic schist; metamorphosed 420 ñcc Ni

ñcc Fortescue Group ñba 340 W,Fl HAMERSLEY BASIN

ñWecch Asbs d 40 ñeb ñogq ìgBgh ñDqs ñb ñcc Bore, Well...... Bore Well

40 480Asbs Cu landing ground 20 d 380 80 Órf 420 60 ñcc

ñWwft 60 Mount Bruce Supergroup (abd) 50 Ôc ñft Creek Windpump...... 80 Quartz Circle 70 ARCHAEAN Órz 30 C ñFhe Beaton Creek Member: pebble to cobble conglomerate interbedded with medium- to coarse-grained sandstone PILBARA CRATON 40' Órf d 50 ñog 02 40' ñWcbd ñWcbk Dam...... Dam

380 Óc ñus

Asb Cu 400 ñeb Yard (abd) ñog 480 d 70 5 55 Asbs Cu,Au 70 70 Óc Abandoned...... (abd) ñWwft Ôaa 80 ìgBgh ñcc ñb ñFhsw Lithic wacke, poorly sorted sandstone, shale, and siltstone ñFhsg LIONEL 45 ñFhsw ñFhsh c. 2766 Ma ì ñFhb Bamboo Creek Member: porphyritic rhyodacite with quartz phenocrysts; extrusive in part ñWwfa Asbs Zn,Ag 30 ìgBgh ñcc 70 400 ñWpfa CHARTERIS BASALT Terrane GraniteÊGreenstone Pilbara East ñWpfa ñeb ñFhsh Shale, lithic wacke, and minor tuff Mineral field district boundary...... îì00 ñWwcc ñFhsw ñcc ñcc ñus ñcc Ni ñDnog ñWcbd ñFrscp Lionel Well ñsc Óc Basalt interlayered with dolerite and minor komatiitic basalt; metamorphosed Mining centre...... MOSQUITO CREEK ñFr r 10 ñFdb ñba ñeb ñeb 80 340 55 ñDnb ñWcbk Komatiitic basalt and minor basalt, numerous pillows; metamorphosed

400 70 Óc d Óc landing groundÔaa Mining locaility...... 380 ñFhscp Pebble to cobble conglomerate interbedded with medium- to coarse-grained sandstone Bridget d 80 ñscu 35 44 ñcc 70 Óc 50 ñFhsw 60 0 ñsc ñeb 70 (abd) 60 15 ñsc ñDnbk 85 Battery or treatment plant, abandoned...... Hales Grave Well (abd) 70 60 ñWpfa ñWpfa 35 400 360 d 60 ñDqsc 60 ìgBgh 60 Ôc îì00

Ôaa ñcc ñcc 30 50 Mine, abandoned mine, or deposit (names are filtered for clarity)...... Cowboy Óc 360 55 ñcc 60 60 ñDqs ñWwf ñWwfa ñWwft ñWwb ñWwcc ñWwssz 460 MARBLE 75 Zn 75 60 60 340 75 50 dolerite and medium- to ñWwftc Óc Órk Órk 75 ñcc ñcc ñDnst 2775Ê2763 Ma êÝî ñFr MOUNT ROE BASALT: massive, porphyritic, vesicular, and amygdaloidal basalt; some pillow basalt; weakly metamorphosed c. 2772 Ma î ñFdb Black Range Dolerite suite: 50 40 Ôaa ñcc ñba ñcc 50 70 ñDqsc coarse-grained gabbro dykes; weakly metamorphosed Óc 50 50 70 ñGpcic ñFhsw 75 Creek 98 ñcc 80 Ôc 70 ìgBgh 80 WYMAN FORMATION ñFhsw 40 ñDqsc ñDqs 70 70 60 Óc d 380 80 75 75 3325Ê3319 Ma â ñWwf Fine-grained to porphyritic rhyolite and rhyodacite flows and agglomerate; metamorphosed ñFhsw 75 70 Ôao Ôaa Ôaa Ôc ñFrsh Shale, lithic wacke, and minor tuff; weakly metamorphosed 400 400 RIVER q ñWwfa Felsic agglomerate and minor tuff; metamorphosed BAR ñcc Ôao Hg 80 60 Ôc 320 340 ñWwft Felsic tuff, porphyritic rhyolite, and rare rhyodacite; metamorphosed 380 ñFdb Ôao ìgBgh 98 ñFrscp Polymictic, poorly sorted and matrix-supported cobble to boulder conglomerate; includes sandstone, siltstone, and wacke;

Lionel 65 ñWwftc Felsic tuff interbedded with silicified siltstone, chert, carbonaceous pelite, and basalt; metamorphosed

ñsc ñbk 50 Óc 70 ìgBgh discontinuous thick-bedded shale units in upper parts; weakly metamorphosed Cu 340 Ôw ñsc 50 60 70 q 80 k ñFh 400 40 70 Ôao 75 75 ñWwb Basalt; massive and pillowed; metamorphosed 75 ñogq 70 q q ñFr ñbk ree 75 ìgBgh ñWwcc 70 C Finely layered chert and felsic tuff and schist; weakly metamorphosed; locally sheared 420 50 60 ìgBgh 70

96 Cu,Zn ñcc ñcc ñDqsc 30 80 60 q ìgBgh 70 70

80 GSWA 177131 75 Bridget 70 ñWwssz Siltstone, sandstone, and minor conglomerate, typically silicified; includes some chert and silicified rock of uncertain origin; m ñcc ñsc 340 etamorphosed 80 75 85 80 80 Óc ìgBgh ñgg ñgl ñgt 80 q 70 70 80 MINERAL OCCURRENCES ñFhb 75 Sandy d Kelly Subgroup 80 Ôaa Ôaa Ôaa 340 85 75 ñFhsw ñcc ñba 85 80 75 70 Óc Órf

70 70 ile 80 ñWeb ñWed

65 70 65 96 PILBARA CRATON 46 Ôaa NULLAGINE 60 M 60 80 85 Ôc ñWebc ñWebd ñWebk ñWebx Commodity information from non-confidential data held in the WAMIN database. Data points are filtered ROAD 45 q

0 400 70 70 ñgg Granodiorite to quartz monzonite, fine grained; metamorphosed 500 45 80 75 85 65 80 70 Creek for clarity on the plotted product; full set of data points available in digital data and GSWA Report 81 75 Óc 360 80 380 70 70 ñgl Leucogranite, fine to medium grained, minor biotite and epidote; metamorphosed 80 Ôc 70 70 r 75 Twenty 65 Ôc Mineral occurrences and exploration potential of the east Pilbara 80 Órf 75 70 360 Órf ñgt q ñDqs Óc q Biotite tonalite, fine to medium grained, equigranular; metamorphosed ñWecc ñWecch ñWeccp 60 80 Óc 65 340

94 80 ñDqs 80 ñDqs 80 80 ìgBgh ñFdb 60 80 380 80 60 Óc 60 70 85 80 65 MINERALIZATION STYLESÝ

75 75 70

85 75 40 75 75 80 75 360 80 380

85 85 60 Mosquito ARCHAEAN ñgco COOKE CREEK MONZOGRANITE: 75 Óc 70 70 q Yard Au 80 monzogranite, fine to medium grained, biotite-bearing, seriate to feldspar porphyritic; intruded by quartzÊbarite veins; metamorphosed EURO BASALT 75 70 Au d Porphyry, pegmatite, greisen, and skarn

Pilbara Supergroup 80 ìgBgh Warrawoona Group Ôaa 80 70 94 Terrane GraniteÊGreenstone Pilbara East ñWeb Basalt; generally pillowed; minor komatiitic basalt; metamorphosed

Creek 80 Ôc 80 60 360 40 460 r 340 380 80 ñDqs 400 70 Órf Orthomagmatic mafic and ultramafic 460 70 85 d 70 ñWebc Intensely carbonate-altered metabasalt; commonly pillowed; local chloriteÊcarbonate schist 85 80 80 380 65 80 70 85 70 60 70 ñDqs Ôc 75 85 380 ñWebd Basalt interlayered with medium-grained dolerite and local gabbro; metamorphosed Vein and hydrothermal ñFdb 60 75 80 75 80 85 80

Taylor 75 40 80 ñgKbd ñWebk 480 Komatiitic basalt and minor basalt; massive and pillowed; metamorphosed 460 40 65 80 70 80 85 ñgKbdn Stratabound volcanic and sedimentary 92 360 70 60 85 40 70 80 380 65 ñWebx Basaltic tuff; metamorphosed 400 70 65 70 80 70 75 Stratabound sedimentary and/or sedimentary banded iron-formation 80 400 80 Óc 50 50 ñWed Medium-grained dolerite and local gabbro; metamorphosed

460 Óc 65 80 420 60 70 80 80 Ôaa KURRANA GRANITOID COMPLEX ñFhsg 80 3 70 65 q ñWecc Chert; generally white, grey, and blue-black layered chert; local massive blue-grey chert; weakly metamorphosed Regolith hosted 70 60 75 80 80 c. 2838 Ma ð ñgKbd BONNEY DOWNS GRANITE: monzogranite, medium grained, sparsely porphyritic; locally muscovite-bearing Terrane Kurrana 80 75 60 400 80 92

ñDqs 85 70 80 60 70 70 ñWecch Hydrothermal black chert vein 380 ñgKbdn Monzogranite, medium grained, sparsely porphyritic, locally muscovite-bearing, with abundant xenoliths of granitic gneiss; foliated; metamorphosed

70 70 80 85 70 380 80 80 40 ñWeccp Chert interbedded with silicified pelite and ashfall tuff; metamorphosed 460 70 80 MINERAL AND ROCK COMMODITY GROUPS 60 75 ñDnss ñFhb GSWA 169199 70 80 ñFh ñFhsg 70 380 85 ìgBgh 440 85 360 80 Twenty 440 Órf 70 îê90 85 75 STRELLEY POOL CHERT: white, grey, and blue-black layered chert; locally wavy laminated chert, minor felsic tuff, and massive blue-grey Precious mineral 75 Óc 80 65 ño ñog ñWs 70 Au 70 Au chert; locally stromatolitic; weakly metamorphosed 65 400 Ôaa 70 70 75 60 q 75 Precious metal 85 70 q 80 80 80 q 460 70 80 75 400 ìgBgh 80 q ño Steel industry metal ñFh 65 Ôc Ôc 50 65 80 75 Ôc 85 îê90 Fine- to medium-grained dolerite and local gabbro; metamorphosed Óc 60 65 Mile 80 80 85 80 80 80 65 ñog Gabbro, fine to medium grained; quartz-phyric; metamorphosed 65 Speciality metal Órk d 80 75 70 70 ñWpfa ñWpft ñWpcc Ôao 75 70 ñWpftd ñWpcch

460 Óc 65 85 GSWA 169194 400 65 80 400 60 Base metal 80 80 Óc 75 80 Ôaa 70 380 65 80 d 80 80 ìgBgh 460 Ôaa 25 420 400 Sandy 340 80 Au 88 Ôc Óc 80 70 60 75 80 75 70 ñuc ñup ñupd ñus ñux Iron 80 70 PANORAMA FORMATION d 80 70 400 360 Unassigned Óc 80 Ôc 80 60 75 70 Salgash Subgroup ñWpfa Felsic agglomerate and minor felsic tuff and andesitic basalt; locally silicified; weakly metamorphosed Industrial mineral

Órk 85 400 70 80 80 q 70 3433Ê3426 Ma åÝòÝâô

Óc 420 Órk 85 80 80 60 Ôaa Au Ôs 360 60 Órf 440 d 70 d 80 70 80 80 80 ñuc TalcÊcarbonate and talcÊchloriteÊcarbonate schist ñWpft Felsic tuff and minor felsic agglomerate and andesitic basalt; locally silicified; weakly metamorphosed ñFhsw 75 80 70 15 q 65 Ôaa

Ôaa 400 Creek q 70 75 88 ñWpftd Felsic tuff and felsic agglomerate interlayered with dolerite; metamorphosed

400 ñFhsw 380 GSWA 169187 85 Ôc ñup Serpentinized metaperidotite and serpentineÊchlorite schist 460 70 60 70 80 380 MINERAL AND ROCK COMMODITIES 70 d d Terrane GraniteÊGreenstone Pilbara East 45 75 Creek 75 80 ñWpcc Layered grey-blue and white chert; minor massive cream chert; weakly metamorphosed 50 80 8 80 75 d ñupd Serpentinized metadunite; associated with local metagabbro; minor chert 20 Órf 80 d 85 Antimony...... Sb

80 Ôaa Óc 80 ñus Serpentinite; includes ultramafic schist and talc-rich schist ñWpcch Hydrothermal black chert vein

80 80 70 50 75

Ôs Óc 65 60 400

ñFhsw ñFhb 80 400 80 75 380 ñux 86 Long Pool Órk ñFh 70 60 80 Metapyroxenite, commonly associated with metagabbro and local metadunite, metadiorite, and metadolerite Asbestos, unknown/uncertain source material...... Asb

70 420 380 Au 420 landing ground 85 80 Billjim Ôc 80 50 70 85 70 Asbestos - serpentine...... Asbs

5 80 NU 7 ñWd DUFFER FORMATION: undivided metamorphosed felsic volcanic and sedimentary rocks (Section only) 65 Ôc 400 75 80 Branchi Bore 80 Au,Sb 85 Au Órk ñFhsw ñFhsw 440 70 60 440 5 Creek 65 80 Branchis Au,Sb 70 400 <2950 Ma ì ñDqs Barite...... Brt 70 75 80 400 80 85 ñDqsc 65 Middle 70 60 80 86 S 85

ñDqs 70 30 70 80 q 70 Copper...... Cu 10 S 15 ñFhsw 360 65 5 r Yard d 80 80 30 80 Órk 15 70 80 75 Órk ñFhsh r 60 Au,Sb MOSQUITO CREEK FORMATION Diamond...... Dmd 75 70 80 380 40 70 80 80 ñWm MOUNT ADA BASALT: undivided metamorphosed mafic volcanic and sedimentary rocks (Section only) Órk r Ôc 80 Dams 80 Ôc 80 10 70 80 80 70 Pilbara Supergroup ñDqs Fine- to medium-grained wacke, siltstone and shale; commonly with graded bedding, rare cross-bedding; probable turbidite deposits; metamorphosed; chloritic south of Middle Creek Fault

380 380 Talga Talga Subgroup

ñFhe 70 75 d Mosquito Fluorite...... Fl 84 420 80 70 80

Taylor 40 60 75 60 60 Dams 70 ñDqsc Polymictic pebble conglomerate; minor cobble conglomerate and sandstone; local channel deposits; metamorphosed 400 70 80 80 80 400 80 Ôc 70 70 80 70 ìgBgh Gold...... Au 85 80 Blue Spec 70 d Au

Órk 65 75 80 Golden Spec Ôc 60 75 Ôc 80

30 40 75 Au,Sb 75 60 360 400 45 380 Iron...... 10 60 70 80 70 Fe ñFhb Au,Sb Ôaa 360 80 Granite Hills Well 84 55 80 25 ñDncc ñDnlb ñDnsl ñDnss ñDnb ñDnog ñDnst 80 80 d 45 GSWA 169030 Parnell ñDnlbn ñDnbk Lead...... Pb 380 ROAD 80 ìgBgh Creek Z 50' Órk 70 70 80 10 80 Ôs Órk 65 Ôc TWENTY MILE SANDY 75 Au,Sb 50' ñDqs Middle Creek Well 80 70 ìgBgh Mercury...... Hg 60 85 80 r d 70 80 COONDAMAR FORMATION 70 70 65 60 30 85 75 Ôaa km 270 Mine Telfer 40 20 70 De Grey Group Molybdenum...... Mo 82 ñFhsh 70 70 40 Ôc 60 Au 80 80 ñDncc Layered chert; typically ferruginous; metamorphosed

60 Mosquito Creek Basin 50 landing ground 360 380 400 q 400

460 60 Ôc ñDnlb ChloriteÊactinolite schist, quartzÊmuscovite schist, and amphibolite; includes minor andalusiteÊmuscovite schist and phyllite ñFhsh 65 40 80 Órf 380 Nickel...... Ni 60 400 400 80 80 Taylor Pool 10 Ôc 70 85 Ôc 380 ñDnlbn 360 ChloriteÊactinolite schist, quartzÊmuscovite schist, and amphibolite with local interlayers of GOLDEN EAGLE ORTHOGNEISS (AgKge) 55 d 80 Silver...... Ag

60 70 80 55 80 80 82 ñDnsl Siltstone; minor sandstone; chlorite bearing; metamorphosed; includes thin layers of amphibolite and tremoliteÊchlorite schist 420 Ôaa 50 40 75 60 80 Camel Creek Well 75 Galtee More 40 Ôc MOSQUITO CREEK ñDnss Foliated sandstone and siltstone; locally chloritic; metamorphosed; includes chloriteÊactinolite schist and phyllite Tungsten...... W Ôc 80 70 q q Ôc 50 Creek Latest Surprise Dmd 50 ñDnb Basalt; metamorphosed; east of Meentheena Fault Zone Zinc...... Zn 35 40 landing ground 85 Au Au Au,Sb 40 MIDDLE CREEK 70 Dams 80 ñDqs ñDnbk Komatiitic basalt; pyroxene spinifex texture; carbonate altered and metamorphosed; east of Meentheena Fault Zone ñFhsh ñFhe 70 (abd) Ôc 40 îê80 d Banana Hill 65 80 Middle Au 380 SPRINGS Little Wonder 80 400 ñDnog Gabbro, quartz-phyric, fine to medium grained; foliated and metamorphosed; east of Meentheena Fault Zone 420 Dmd 30 80 400 80

70 60 80 Twenty 80 360 460 30 40 Au ñDnst Sandstone, includes some siltstone; metamorphosed; east of Meentheena Fault Zone Five Cowboy 80 landing ground 70 Ôc 80 80 45 30 80 Upper Au Ard Patrick Dewhursts Well 400 Au,Sb

25 Round Hill

75 Mile 80 Au,Sb îê80 500 380 NULLAGINE 21 65 All Nations Barneys Hill NULLAGINE 40 85 Au ñDqs 360 80

30 Ôaa Ôc Z 40 407 m 55 85 75 Au 80 Au 80 85 50 80 Off Chance 35 80 75 80 Ôc q 540 60 Federation Sandy Mile 70 Au 30 420 ñDqs 380

480 85 q 70 80 Au Creek 50

Z 380 Conglomerate reek 80 380

78 C 380 380

30 40 Au 70 Cu,Pb 70 80 420 q 45 80 Lands End

540 520 65 80 Au Órf d Ôao 420 ñFh 65 80 460 40 Ôc 80

Beaton Creek 80 Dmd 80 Barton

400 80 78

Beaton Beaton Rockhole Dams 80 P I L B A R A 0 M I N E R A L F I E L D

Creek Au 8 Creek Creek 80 3 540 Nullagine q 500 Beaton Gorge 60 50 65 75 80 540 420 Dams Au 80 SKULL 70 70 80 420 TN

NULLAGINE 29 Au 380 85

landing grounds 85 ñDqs Camel Ôao 65 ñDqs 65 q 400 76 ? 404 m 85 Au 85 Yard d 80 70 GN Dam x 85 ñDqs Au 380 Ôao Dam 45 55 MN SHEET INDEX Ôao 70 80 70 80 Au q 80 ñDncc Creek 70 Dmd d Great Eastern Au 80 Órf ñDncc 80 Ôao 70 80 80 50 400 Day Dawn Au 80 Au 70 70 35 30 40 76 WODGINA NORTH SHAW M ARBLE BAR MOUNT EDGAR YILGALONG BRAESIDE 520 70 75 70 80 70 540 3055 3155 80 85 400 50 30 40 45 2655 2755 2855 2955 RIVER 75 60 380 ñDnss GRID / MAGNETIC MARBLE BAR NULLAGINE 80 Victory d d 80 60 60 ñDnlb Nullagine 80 80 50 30 70 ANGLE 1.0¾ Dmd Middle 80 35 SF 50-8 SF 51-5 ñFh Au Ôaa 80 30 60 35 N.T. 74 80 80 Dam Aerodrome Ôaa 60 WHITE SPRINGS TAMBOURAH SPLIT ROCK NULLAGINE EASTERN CREEK PEARANA 80 80 50 30 d 55 460 ? 85 2954 3054 3154 440 Creek Ôc Au 85 30 Qld 2654 2754 2854

Garden Pool 80 GRID 85 400 45 80 ñDnlb INTERPRETED BEDROCK GEOLOGY

Óaf Whatsamatter Well D 80 60 10

Órf d 70 60 440 ñDnlb 40 CONVERGENCE

420 460 OA 80 80 ñDqs d 400 ñDnss R .A. 75 50 d ñFh MFZ Minor intrusions Granitoid units 1.0¾ W 420 74

500 80 80 Five Mile Creek 30 ñWe MOUNT GEORGE MOUNT MARSH WARRIE NOREENA DOWNS MOUNT COOKE WOBLEGUN

75 80 Castlemaine 70 Dam 400 400 50 70 N U L L A G I N E D I S T R I420 C T ñggo ñWw ñFr Ôaa 420 80 q ñWs Hornblende quartz syenite to quartz 2653 2753 2853 2953 3053 3153 70 70 5 ñWe ñWs ìgBgh S.A. ? 70 Ôc Au d d ñGc BALFOUR DOWNS 85 380 70 10 Syncline ñe monzodiorite ROY HILL ñFhs d Ôao 80 80 60 d 60 460 80 50 ñDncc Suite Bridget 70 d ñu SF 50-12 SF 51-9 Ôao 80 d 480 70 q N.S.W.

72 70 q ñDnlb d ñWs ñWs MUNJINAWEELI WOLLI ROY HILL ETHEL CREEK BALFOUR DOWNS TALAWANA 420 80 ñDnlb ñWs d q 400 80 40 80 50 50 30 35 10 ñWe 60 70 q 40 Cu d ñogq 2652 2752 2852 2952 3052 3152 Ôc 50 ñDncc ñW(bk) A.C.T. 480 420 ñFr Creek ñog 20 BAR Valentine 40 ñu ñWs d Dolerite dyke ? 60 80 60 ñWw Vic.

Ôc Ôaa 80 q q d ñe d ñWp ñFm Maddina Formation

75 85 Ôaa 75 80 80 440 q Quartz vein 1:100Ý000 maps shown in black 460 ñWs Au 70 40 30 ñDnlb 72 q 85 Au 80 80 Ôao 60 ñWs ñgco 460 65 80 10 ñFt Tumbiana Formation True north, grid north and magnetic north 1:250Ý000 maps shown in brown NULLAGINE Au 80 60 q d Sandy

Ôaa ñFk 80 q 60 ñDnlb ñgt q

400 ñDnlb Tas. 70 70 00 q 75 ñWp are shown diagrammatically for the centre 4 q 45 ñgKge ñe q ñFk Kylena Formation 80 40 400 70 d Search for current GSWA map products online www.doir.wa.gov.au/ebookshop 48 30 85 q ñWs ñogq ñogq ñe of the map. Magnetic north is correct for 0 80 30 ñbk ñu ? 80 ñog ñFh Hardey Formation îê70 Cajuput 85 40 ñgg

MARBLE 2003 and moves easterly by about 0.1^ in

Óaf 60 NORTH DROMEDARY d Ôao Ôc 440 ñDnlbn ñgKge d 70 ñu ñWp

420 80 M

420 d ñFhb Bamboo Creek Member ñDqs 400 70 420 ñDnlbn Group Fortescue 2 years.

440 ñWw iddle

ñDnsl d BASIN HAMERSLEY

North Dromedary 70 440 Óaf 440 ñDqsc 80 d ñs ñe ìgBgh

75 q q ñDnss Supergroup Bruce Mount

460 80 Au 50 ñFh ñog

Ôc q 460 440 Óaf 35 70 460 Zn,Pb îê70 50 50 60 ñDnlb ñba ñDn ñFr Mount Roe Basalt ñFdb Black Range Dolerite suite 70 80 q d 50 ñWs

70 75 70 q q Coondamar Creek

? 50 NMF 45660 ìgBgh

Creek 75 440 40 ñDnlb ñFh 480 499 m 420 440 75 20 Reedy Fault

20 40 Au ñDqs 40 65 80 60 50 d ñgg ñgt ñgco DATA DIRECTORY

Ôc 85 Z q 10 ñFdb d 440 80 70 70 d 60 S 50 ñba Redmond Óaf Cajuput Spring Well 70 Ôao QUARTZ HILL ñDnlbn q d 68 ñFtt 15 75 ñgg Granodiorite to quartz monzonite ñDqs SOUTH DROMEDARY 55 d ñDnlb Theme Data Source Data Currency Agency d Ôc 50 q 50 480 Terrane

q 40 ñgt Biotite tonalite 480 ñDnlb Fault

420 60 460 ñDqsc q q 80 ñDq Pilbara East 10 ñFhs 60 Golden Eagle 80 50 q BRUNETTE 30 20 70 ? 70 50 60 60 30 ñFhb ñgco Cooke Creek Monzogranite Geology GSWA 2002ÝÊÝ2003 Dept of Industry and Resources 4 5 10 GraniteÊGreenstone Óaf Creek 40 10 10 Au q q HILL ñFh

10 75 10 q q ñDnss Sandy Creek 85 70 Creek 420 45 420 d D 60 68 KURRANA GRANITOID COMPLEX Kurrana 5 5 Au Ôao q 35 50 80 ñgKbd Structural data WAROX OCT 2003 Dept of Industry and Resources Bonnie Yard 178012 ñDnlb 480 q ñDnlb ñDnlb Fault Bonney Downs Granite Terrane

40 75 45 q 480 55 480 60

ñFtc q d 70 q 460 d

q q 480 80

460 Mineral occurrences 420 q 70 35 q 60 70 ñog ñu WAMIN MAR 2003 Dept of Industry and Resources

ñFk ? d q (non-confidential) 460 ñDnlbn q

178013 d 460 65 q q 70 60 80 75 45 ñDnlbn q 80

q 70 70 ñFhb ñDq Mosquito Creek Formation ñog Gabbro G IC A L S U 60 440 d ñgKbdn d O R 70 500 500 L V îê66ôôôÜN Blue Spec Fault Zone 25 ñDqs q q Cadastre TENGRAPH JUN 2002 Dept of Industry and Resources O E E 45 ñu Ultramafic rock, undivided Y

ñFtt 178014 ñgKbdn Department of G 440 Geological Survey of

q ñgKge Coondoon Creek d d W Castle q 500 60 70 A ñFkbi E 75 d ñgKbd 20 65 ñDnlb ñDns ñDn I d 460 Industry and Resources

q 480 Horizontal control GESMAR JUN 2002 Dept of Land Information S L

460 460 65 Western Australia

440 A ñDqs 420 Ôaa q T ñFdb 440 66 ñDq E R 15 480 Ôaa NMF 628 T 60 ñFh R N A U S

ñgKbd q 50 q Fault Coondamar Formation 460 536 m ñFtc 420 440 d Topographic nomenclature GEONOMA JUN 2002 Dept of Land Information

50 q d d 5 80 500 q ñFm ñcc Group Grey De ñDnlb ChloriteÊactinolite schist, mica schist and amphibolite 80 85 q Ôc ñDnlb ñFm ñFk ñgKbdn q ñgKbdn q CLIVE BROWN, M.L.A. JIM LIMERICK TIM GRIFFIN

d Basin Creek Mosquito q ñFdb ñDnlb ñDns ñDns Metasedimentary rock; local metamafic rock Topography DLI and GSWA field survey 2002 Dept of Land Information 22^00' 22^00' MINISTER FOR STATE DEVELOPMENT DIRECTOR GENERAL â92ôôôÜE 94 96 98 ä00 02 04 06 08 ä10 12 14 16 18 ä20 22 24 26 28 ä30 32 34 36 38 ä40 Middle Creek ñDn Undivided, east of Meentheena Fault Zone DIRECTOR d d CRATON PILBARA Bonney Downs Homestead 25 km ñFk ñGp Paddy Market Formation

ñDnlb ñgKge ñDns Group

d Terrane

120^00' 10' 20' 120^30' Kurrana Shear Zone d ñDnlb d ñGc Corboy Formation East Pilbara East ñDnlb Creek Gorge d GraniteÊGreenstone ñFm q ñgKbd d ñgKge KURRANA GRANITOID COMPLEX Kurrana ñFt d ñgKbd ñFk Golden Eagle Orthogneiss Terrane PRODUCT OF THE NATIONAL ñogq ñb ñba ñbk ñs Compiled by L. Bagas 2002Ê2003 GEOSCIENCE AGREEMENT SCALE 1:Ý500Ý000 ñogq Metagabbro Geology by L. Bagas (GSWA) 1999Ê2002 and O. Beukenhorst and K. Hos (Utrecht University, The Netherlands) 1999 0 5 10 15 20 ñb Metabasalt Geochronology by: SCALE 1:100Ý000 A B C DIAGRAMMATIC SECTIONS D Kilometres ñba Amphibolite and chloriteÊactinolite schist (1) D. R. Nelson, 2002, GSWA Record 2002/2, p. 137Ê144, 174Ê177. 1000 0 1 2 3 4 5 6 7 8 9 10 ñgOmo ñWs ñWebk ñWecc MARBLE BAR ROAD ñeb ñog Reedy Fault NULLAGINE RIVER Sandy Creek Fault Blue Spec Fault Zone SKULL SPRINGS ROAD Middle Creek Fault Kurrana Shear Zone ñbk Metamorphosed komatiitic basalt ñs Metasedimentary rock (2) D. R. Nelson, 1998, GSWA Record 1998/2, p. 133Ê135. ñWwfa Supergroup Pilbara (3) D. R. Nelson, 2001, GSWA Record 2001/2, p. 129Ê132, 140Ê148, 175Ê177. Metres UNIVERSAL TRANSVERSE MERCATOR PROJECTION Kilometres SEA LEVEL ñFr ñog ñGpcic ñDnlb SEA LEVEL ñe Copper Gorge Formation (4) T. S. Blake, 2001, Precambrian Research, v. 107, p. 139Ê177. HORIZONTAL DATUM: GEOCENTRIC DATUM OF AUSTRALIA 1994 ñgKge ñDnlb Approximate limit of contact metamorphism associated (5) N. T. Arndt et al., 1991, Australian Journal of Earth Sciences, v. 38, p. 261Ê281. VERTICAL DATUM: AUSTRALIAN HEIGHT DATUM d with Proterozoic intrusions ñWpfa ñDnlbn ñr Budjan Creek Formation (6) D. R. Nelson, in prep., GSWA Record 2004/2. ñWecc ñGcstq ñWs ñDqs Grid lines indicate 1000 metre interval of the Map Grid Australia Zone 51 ñWecc ñFdb (7) M. T. D. Wingate, 1999, Australian Journal of Earth Sciences, v. 46, p. 493Ê500. ñWpfa ñggo ñgOmo ñgOca (8) D. R. Nelson, in prep., GSWA Record. ñWwftc ñDqs The Map Grid Australia (MGA) is based on the Geocentric Datum of Australia 1994 (GDA94) d ñba Fault Fold axes Bedding trend (9) M. E. Barley, and N. J. McNaughton, 1998, Precambrian Research, v. 96, p. 41Ê62. ñWebk d ñW(bk) Metamorphosed komatiitic basalt ñggo Gobbos Granodiorite GDA94 positions are compatible within one metre of the datum WGS84 positions (10) D. R. Nelson, 2000, GSWA Record 2002/2, p. 195Ê198. GEOCENTRIC DATUM OF AUSTRALIA ñux d 2 km Unassigned CORUNNA DOWNS GRANITOID COMPLEX 2 km d d ñWeb ñWpfa ñWd For further details, refer to main reference ñWc Charteris Basalt ñgOmo Mondana Monzogranite Edited by C. Strong and G. Loan ñWebk ñDqsc ñgKge ñgOca Carbana Monzogranite Terrane GraniteÊGreenstone Pilbara East

ñDnlb ñWw Wyman Formation Cartography by G. Wright, B. Williams and K. Greenberg Kelly

ñWpft MFZ Meentheena Fault Zone Subgroup d ñWe Euro Basalt Published by the Geological Survey of Western Australia. Digital and hard copies ñDqsc ñgKbd ñWs ñWeb ñus ñcc ñDnlb Group Warrawoona ñWs Strelley Pool Chert of this map are available from the Information Centre, Department of Industry and d ñWecc ñWm ñbk ñDqsc ñgKbdn ñeb ñDnlb ñDnlb Resources, 100 Plain Street, East , WA, 6004. Phone (08) 9222 3459, Fax (08) 9222 3444

Salgash ñWp Panorama Formation

ñgKbd Subgroup 4 km ñux 4 km WebÝ www.doir.wa.gov.au EmailÝ [email protected] SHEET 2954 FIRST EDITION 2004 The recommended reference for this map is: Version 1.0 _ June 2004 BAGAS, L., BEUKENHORST, O., and HOS, K., 2004, Nullagine, W.A. Sheet 2954: Western Australia Geological Survey, 1:100Ý000 Geological Series. ¦ Western Australia 2004