1Ý:Ý100Ý000 GEOLOGICAL SERIES GEOLOGICAL SURVEY OF SHEET 2249

116^30' 40' 50' 117^00' Wanna Homestead 10km

INTERPRETED BEDROCK GEOLOGY è50 52 54 56 58 è60 62 64 66 68 è70 72 74 76 78 è80 82 84 86 88 è90 92 94 96 98 ê00 20 24^00' 44 46 40 24^00' zq 36 ìMEi-st 26 W zq 30 ìMEd-c 0 ìMEk-s ìMEl-s ìMEl-s Rk 460 Geological boundary ? ? W Rk W 17 ìMEk-s ìMEl-s ìMEc-s ìMCb-s A3 Rk A3 ìnr-od ìMCP5-s A¥ C1q ìMEk-s 420 C3 ìnr-od 75 440 1 A¥ ? Rk ìnr-od ìMEl-s CCf W Wf Wk A A¥ A§ S exposed...... ìMEd-c ìnr-od ìMEl-s 59 A¥ C2 ìMEP1-kt ìMEP4-xs-k 3 ìMEk-kd ? ìMEi-kd A¥ A 22 A3ti 80 80 ìnr-od ìMElc-sf 34 ìnr-od 44 ìnr-od ìnr-od Terminus Bore (PD) A 1 42 C1q 40 0 Structural symbols are labled according to the sequence of deformation ìnr-od ? ìMEk-s 78 ? 68 79 ìMEl-s 1 68 ìMEk-sl ? A¥ ìMEi-kd C3 ìMEl-s W 35

Rk ìMEi-sl 400 W C1 W zq Colluvial units events, where known

27 4

ìMEd-c 2 89 1 A

0 Query Well ìnr-od

52 S W 15 Trinity Bore C1tsµ C Quartz and rock fragments in a silt and sand matrix; includes ferruginous deposits 400 ? ìMEv-kd 55 ìMEv-kd A¥ C2 ìMElc-sf ìMEP1-kt 44 ? 1 20 A 72 2 Edmundian Orogeny (1020Ê755 Ma) 10 ìMCb-s 44 Ferruginous rubble and scree ? A¥ 25 Cf ìMEP1-kt 1 C2 9 82 ìMEd-c ìMEd-c 1 Urida Bore 64 26 Edmund Fold Belt...... E ìMEk-s ìMEk-sl 45 1 ìMCb-s 30 A¥ ? 420 A2 ìMEl-s Yard Sheetwash units ìMEP4-xs-k ìMW-od 70 ? A¥ 66 W 85 22 ìMEk-kd Rk 42 85 2 1 0 1 G DÛ ¦ ...... C1tsµ W 62 W Sandy and clayey distal sheetwash and slope deposits; no clearly defined drainage ìDU-g eeg 400 79 Rk ? 440 ? in 68 ìnr-od A1 W Wf Predominantly iron rich, derived from relict ferruginous deposits ¦ 1 1 ìnr-od ? 63 1 Creek C1tsµ ìMEl-s DÕ ...... 1 45 ? ìMEc-s ìMCb-s ìMEd-c Bluebush Bore ìMEi-st O'Connor Well (abd) Koorabooka A¥ ìMElc-sf Unassigned Wk Distal sheetwash with calcrete cutans and carbonate cement ìMEP3-sk 87 W 12 10 A1 A¥ Capricorn Orogeny (1830Ê1780 Ma) C2 16 ? Rk A3ti 4 ? 2 A1 Bore (abd) 440 Alluvial units 00 54 ? C1 ìMEP4-xs-k 42 440 16 ? 42 ìMEP2-sk DÕ° ...... 1 ìMEk-s 380 ìMEi-kd Mulga ìnr-od ìMEl-s A Silt, sand, and gravel in drainage channels and adjacent to floodplains; includes ferruginous deposits ìnr-od ìMEk-s ? Spring Creek 70 A¥ Unconsolidated, fine-grained deposits in alluvial drainage depressions, claypans, perennial lakes, and swamps; low-lying areas with internal drainage; typically thickly vegetated Fault or shear ? ? Southside Bore A¥ ? ìnr-od Rk A2 ìnr-od Rk A¥ Deep Bore Rk C1tz ìMEd-c ìMEi-kd 35 ? A1 A§ Unconsolidated, fine-grained deposits on floodplains ìMEP4-xs-k exposed...... A1 Cow Bore Rk Rf ìMEP1-kt ? A¥ ? W W 380 ìMEk-s Deep Well (abd) Andrews Bore A¥ ash ìMEl-s Sandplain unit exposed strike-slip, showing relative dextral horizontal displacement...... 45 ìnr-od Griffith Well (abd) ? A2 ìMEl-s C2 ? ìnr-od 64 Quartz sand of mixed origin; includes residual and eolian sands Rk ìMEd-sl ? ìnr-od S Rk 1 Griffith Bore ? 0 460 ìnr-od concealed...... 45 ìMEi-kd W ìMEd-c ? 4

W 4 83 ìMEd-c ? C1 Syncline

1 ìMEv-kd Rk C M ? ? îå40 ? ? ob normal, exposed, tick on downthrown side...... 74 ? Northside Bore 11 ? ? ? A¥ A1 ìnr-od ? îå40 ra Lyons ? 86 ? ? C1 C1c C1c£ C1qC1tz C1tsµ A1 A1c£ ìMEP3-sk 38 Kurabuka Creek ? A¥ 1 1 ìMEl-s zq reverse, exposed, triangle on upthrown side...... Rk 80 ìMEk-s ? A¥ ? 85 River W Pb,Cu,Ag ? 25 Rf Fault ìnr-od ? 78 concealed, interpreted from aeromagnetic data...... ? ? W ? Shitson Bore ìMEi-kd 35 zq ìPO-md 3 ìMEd-sl ? 67 A2 ? Synclinorium 60 ? 46 1 W Colluvial units first generation ìMO-g ? ìMEd-c ? Shannon Well (abd) Rk ìMO-g Fold, showing axial trace and generalized plunge direction Rk 20 22 4 ? C1 Quartz and rock fragments in an unconsolidated silt and sand matrix; includes ferruginous deposits Rk ìMEv-kd W ? zq C1q 49 reek ? 420 ìMEl-s 1 43 ? Rf anticline, exposed, concealed...... Rk ? C zq W ìMEv-kd C1c Clay, quartz sand, and deeply weathered rock fragments; reworked saprolite and saprock ìMW-od Koorabooka Bore 420 54 72 ?

C1 ? McKenzie Bore ìMEi-st Rf C1c£ Swelling clay (gilgai) and rock fragments mostly developed over dolerite ìMP-xmd-mk 38 ? Rk C1 440 syncline; exposed, concealed...... ìMEd-c Koorabooka ? A¥ ìMEd-c 460 56 38 ìau-sp A¥ W Deep Frederick Well 312 1 ? W Rk C1q Quartz fragments in an unconsolidated silt and sand matrix, derived from quartz veins and quartzose rocks zq Rk 7 Deep Frederick Well ìMEk-s synform, exposed...... A¥ ìnr-od QUATERNARY Rosemarys KoorabookaìMEk-s Spring 74 ìMEd-sl ? ? 10 ìMEv-kd C1tz Siliceous fragments in an unconsolidated silt and sand matrix Middle Bore ? Pb,Zn ìMEv-kd Rf Rk Bore 77 70 Z 22 A¥ 8 82 ? Rk 45 1 C1tsµ Sandstone fragments in a silt and sand matrix; derived from sandstone antiform, concealed...... ? 81 1 44 ìMEl-s 1 71 ìnr-od 88 A¥ ìnr-od ìMP-xmd-mk ìPO-md ìMEi-kd ìMW-od Small-scale fold axial surface, showing strike and dip ? ìMEi-kd ? ? Alluvial units first generation 24 420 35 ìMO-mg zq ìnr-od 42 W Cf A1 Unconsolidated silt, sand, and gravel in active drainage channels and floodplains; includes ferruginous deposits inclined...... W Acacia Bore ìMEi-sl 23 83 CENOZOIC ìMEP4-xs-k

? Stevens ìMEk-s 1 A2 ìMEl-sf A1c£ Swelling clay (gilgai) developed on alluvial flats ìMEP3-sk 19 PHANEROZOIC ìMEP1-kt

A¥ ? 1

0 ? ? ìMW-od

36 8 ìMEd-c ìMEP3-sk Small-scale fold axial surface, showing trend and plunge 3 Bore A¥ zq C1 8 RIVER A¥ ìnr-od 36 zq ìMEP4-xs-k A¥ 54 C1q 54 460 ìMP-xmd-mk ìMW-od ìnr-od unspecified...... 44 Ryan Bore W ? ìMW-od A3ti ìDUpi-gmp ? A¥ ? ìMEv-kd C2 A2 A1 ? A¥ ìMW-od ìMO-g ìnr-od zq anticline...... 60 C1 C2 60 ìnr-od ìMO-mg A¥ ìMEi-kd ìMR-xmd-mk 50 W ? 1 zq syncline...... zq A¥ ìMEl-sf 480 Rk New Bore A¥ ? ? ìMEk-s ? Clarke Well 71 Colluvial unit second generation Nannas Bore B Camel Corner Well (PD) antiform...... 75 30 Quartz and rock fragments in a partly consolidated silt and sand matrix ìDUpi-gmp FREDERICK ? 80 C2 Rk SCALE 1:Ý500Ý000 S 34 A¥ 21 ìMEk-s 19 49 S-vergence...... 55 Clarke Bore ìMEd-c ? 27 34 0 5 10 15 20 ? A1 1 Alluvial unit second generation ? A¥ A1 ìnr-od zq 49 M 80 ìDUpi-gmp ? A¥ ìMEk-s A2 Partly consolidated silt, sand, and gravel; partly dissected by present-day drainage M-vergence...... 45 1 4 Kilometres A¥ A¥ A¥ 8 A¥ Z C1 ? 0 75 60 A¥ ? 1 zq Z-vergence...... Rk A¥ ? Camel Corner Bore 4 Fry Well 2 82 Rk ? Yard Ion Well 0 Bedding, showing strike and dip zq 25 C3 A3 A3ti ? Bowe Well ? 20 70 ? 500 inclined...... Rk A¥ Bedong Bore Rk ìMEk-s ìnr-od W A3ti

3 80

? 3 8 6 zq Quartz vein

32 308 8 ìMEd-c 0 ? overturned...... 1 0 ìMEk-s 32 Colluvial unit third generation 75 Jamieson Well A¥ ? Peedawarra Bluff 360 A¥ ? A¥ 400 C3 Quartz and rock fragments in a weakly cemented and compacted silt and sand matrix; deeply dissected valley-fill deposits U A¥ Rk 29 trend of bedding...... ìDUpi-gmp ? 68 ìDUdi-grpv A¥ W 1 ìMW-od Mundine Well Dolerite Suite A1 ? A¥ ìnr-od Alluvial units third generation Igneous flow banding ? ìMEk-s ? ? A3 Weakly cemented and compacted silt, sand, and gravel; deeply dissected by present-day drainage 36 Rk Bingegaroo Woolshed Bore inclined...... A¥ Jamieson Well Rk A¥ Nottles Bore A¥ A3ti Sand and gravel with ferruginous cement; deeply dissected by present-day drainage ìMCP5-s Depositional Package 5 (Backdoor Formation) Rk ? C1 A¥ ? ? vertical......

W Collier Group Yard ìMEk-s ? BASIN COLLIER Edithana Pool 5km îå30 A1 ìnr-od trend of igneous flow banding......

Bangemall Supergroup Narimbunna Dolerite ? 380 A¥ ? Peedawarra? îå30 Rf Rk Rl Rz Creek W ? Well Igneous contact, showing strike and dip Saltbush Bore A¥ A¥ landing ground W ìMEP4-xs-k Depositional Package 4 (Discovery, Devil Creek, Ullawarra, and Coodardoo Formations) 27 W Uni Well ? A1 ? PEEDAWARRA FLAT ? inclined...... Rk A¥ ? Residual or relict units Centipede Bore 40 rra 80 A¥ awa Yard Rf Ferruginous deposits, including lateritic, ferruginous, and manganiferous duricrust Metamorphic foliation, showing strike and dip Yard ìMEl-s A¥ W Peed Rk ? 1 W ìMEP3-sk Depositional Package 3 (Kiangi Creek Formation) Rk Calcrete, developed in and adjacent to alluvial channels; carbonate and vuggy opaline silica; dissected by major present-day drainage inclined...... 55 Pops Bore ? A¥ ? A1 5 A3ti A¥ Rl Saprolite and saprock of uncertain protolith

28 A1 vertical...... LYONS 400 ? Narralda Bore C1 41 28 Rz Silcrete and brecciated siliceous caprock ìMEP2-sk Depositional Package 2 (Blue Billy Formation) Edmund Group Waitawile Bore ìMEl-s ìnr-od ? BASIN EDMUND

W A¥ ìMEk-sl 15 trend of foliation......

Rk Bangemall Supergroup

A3ti 4

2 ìMEk-kd 0

10' W ? 10' ìMEP1-kt Depositional Package 1 (Yilgatherra, and Irregully Formations) Trend of foliation or gneissic banding......

? 4

6 zq Quartz veins, of various ages 0 ? Rk Paddy Bore ìMEk-sl Flinders Bore Cleavage, showing strike and dip ìMEd-c 10 36 Jessies Bore ìMEk-sl 75 W 75 0 Rk 5 ìau-sp Mount Augustus Sandstone 78 inclined...... ?? BASIN 0 RIVER 1 ìMEk-sl MOUNT ? 2 ? Mulka Tectonic Event (c.570 Ma) W 33 1 AUGUSTUS 26 ? 80 8 24 vertical......

A¥ W Geegin Well (abd) A¥ 400 50 A2 440 70 26

ìMEk-s RIVE A1 ìMEk-st 20 400 Snakewood Bore c. ìDU-g Durlacher Supersuite W R Yard ìMW-od MUNDINE WELL DOLERITE SUITE: dolerite dykes, sills and small intrusions; dated at 755 Ma includes minor quartz diorite, tonalite and biotite Crenulation cleavage, showing strike and dip ìMEb-sl ? Bangemall Bore ìMEl-s ìMEd-c A¥ 1 W monzogranite; dashed where interpreted from aeromagnetic data 80 A¥ W ? 70 ? ìMEk-sl 35 inclined...... Cobra Homestead 5km Jones Bore ìPO-md Pooranoo Metamorphics FREDERICK ìnr-od 17 PLEX

ìMEk-st 72 2 ìnr-od ? Edmundian Orogeny (1030Ê950 Maä) Lineation, unspecified, showing trend and plunge 500 360 W 380 A2 380 1 18 NEOPROTEROZOIC C1 ìMEk-s ìnr-od A1 83 Rk Marsden Bore 70 20 480 ìMO-g ìMO-mg inclined...... 26 ??? Rk ? ? Rk 1 C1 ìMEd-c ìMEk-st 27 ìMEk-sl A1 24 A¥ ìnr-od ìnr-od 81 12 ìMEk-sl A3ti ìMCb-s BACKDOOR FORMATION: siltstone, mudstone, and thin- to thick-bedded sandstone; minor chert and dolostone Mineral lineation, showing trend and plunge ìMEk-s Bullocks Bore ìMEk-kd 480 24 ìMO-g Granite and minor gabbro A¥ 400 ìMEd-c Rk 9 ìMEl-s 40 460 COM 20 Collier Group inclined...... Rk W 70 400 ìMEd-c COLLIER BASIN ìMO-mg Metamorphosed foliated and gneissic granite ìMEd-c A1 W ? 1 10 Moorarie Supersuite A3ti ? 1 80 58 ìMEk-sl 47 A3ti 10 Axis of crenulation, showing trend and plunge 400 57 Swamp Well 83 460 400 3 ìMR-xmd-mk Morrissey Metamorphics 1 E Cobra Homestead 3km c. ìnr-od A1 C1 C1 Yard 62 ìnr-od NARIMBUNNA DOLERITE: dolerite and gabbro sills intruded intoEdmund Group ; dated at 1465 Ma inclined...... 18 306 A¥ 78 500 A¥ 1 13 ìnr-od 1

1 Alston Well Rk C1 ? C1 ìMEk-sl 19 zq 27 84 ? ìnr-od 85 420 Bedding-cleavage intersection lineation, showing trend and plunge 1 86 Cu Pearsons Bore ìMEl-s A3ti 44 14 ìMEv-kd Rk 33 0 22 ìMEv-kd 14 For further details refer to main reference inclined...... 26 14 ìMEd-c 32 22 ? A¥ Rk ? ìMEl-s Alston Well A3ti ìMEk-st A¥ ìMEd-c ìMEc-s COODARDOO FORMATION: thin- to very thick-bedded lithic quartz sandstone; minor siltstone and mudstone Cleavage-cleavage intersection lineation, showing trend and plunge ìMEd-c A¥ ?? 69 zq 21 5 A3ti A¥ 48 ìMEd-c ìnr-od Rk 00 ìMEk-sl Rk A¥ 420 zq inclined...... c 20

3 1 ìnr-od

80 0 ? Rk 35 8 C 400 Curran Member: siltstone and fine- to coarse-grained sandstone; locally intruded by dolerite sills; has gradational contacts with underlying

3 OB LYONS ? 460 1 35 RA ìMEv-kd 29 ìMElc-sf Airphoto lineament ìnr-od ìMEk-sl McEwen Well 88 15 ULLAWARRA FORMATION and overlying COODARDOO FORMATION W W 400 85 17 ìMEv-kd M 1 88 ìMEv-kd ìnr-od unspecified......

? OU 65 440 NT 52 420 ìMEd-c Rk A1 îå20 30 ìMEd-c ? 17 A3ti fracture pattern in granitic rock...... C1 C Ryleys Bore ? RIVER 73 îå20 ìMEl-sf Siltstone and thin- to thick-bedded sandstone 65 46 Wilson Bore Waterhole ìMEd-c ìMEl-s 0 ìMEk-s W Isotopic age determination site with identification number...... 180938 78 78 ? AUGUSTUS 47 ìMEv-kd ìMEd-c 1 ìnr-od 4 ìnr-od Belmore ? 1 00 60 Gap Well ? A¥ A3ti ìMEl-s ULLAWARRA FORMATION: siltstone, fine-grained sandstone; dolostone, and minor chert; intruded by numerous dolerite sills (ìnr-od and ìku-od ) 78 C1 Bore Wk 40 ? A3ti ROAD 400 ? A3ti Road; unsealed...... C1 W 60 Wk A¥ Rk ? ? S ? W ? ? ? ? ? ? 1 Major track...... W ìMEd-c ìMEl-s 1 84 W ìMEv-kd DEVIL CREEK FORMATION: laminated dolostone and dolomitic siltstone; local thick-bedded dolorudite Wk ??? ìMEk-sl ìMEd-c A¥ 18 86 ìMEv-kd 1 62 ? Track...... Ba 53 A1 ? C1q A1 18 W ngem Spry Bore 53 W A¥ A¥ zq ? Fence, generally with track...... Wf 79 G A S C O Y N E M I N E R A L F I E L D ìMEv-sl all A1 45 ìMEd-c ìMEk-sl ? Siltstone ìMEl-s ìMEl-s 35 ? 56 Homestead...... Mount Augustus ìnr-od 1 ? ìMEl-s 77 W 25 A1 Rz A3ti 24 Building...... ìMEl-s Waterhole ? A1 ? 1 21 ìMEk-s 62 4 420 ìMEk-s ìMEd-c DISCOVERY FORMATION: massive or laminated chert, silicified mudstone, and siltstone Yard...... Yard 0 1 0 ìnr-od 42 50 ìMEk-sl Waterhole 82 RIVER Dooley Downs Homestead 25km ìMEv-kd 0 0 307 ? Rk LYONS ìMEk-sl ?

ìMEl-s 82 51 1 C1tsµ ìMEk-s

16 Wf ìnr-od C1q 3 A¥ National park boundary......

Wf Dunnice Well 8 ? ìnr-od 13 0 16 A1 A1 Cu,Zn 84 Waterhole NO 400 56 ìMEl-s 12 80 Broome Bore 400 RT A1 ? ìMEd-sl Siltstone Horizontal control; minor...... 4 Rf H 2 zq ? W 0 C reek Dunnice Well ìMEv-kd ìnr-od ìMEi-kd Burke Well ìMEk-s 45 Rk Contour line, 20 metre interval...... 160 Wf 63 80 ? Cattle Pool ? A¥ ìMEk-sl A1 Rk 87 ROAD A¥ 26 600 1 ? Bangemall Supergroup MINERAL OCCURRENCES ìnr-od 76 ? 75 420 Yallowerie Well ìMEk-s KIANGI CREEK FORMATION: siltstone, mudstone and thin- to very thick-bedded quartz sandstone; minor dolostone and conglomerate A3ti 38 Rk 1 Wf ? ? C1 420 ìMEd-c Rf 41 ìMEd-c ìMEk-st S ? Augustus Springs Island 23 43 ? ? Watercourse...... ìMEk-s ìnr-od ?

Deep Well (abd) ìMEv-sl EDMUND BASIN Rk ìMEl-s ? W C1 Edmund Group MINERALIZATION STYLES MINERAL AND ROCK COMMODITY GROUPS Pool

14 ìMEv-kd 72 1 ? W ìMEk-st Medium- to very thick-bedded quartz sandstone and siltstone Pool...... Rk 380 Rk 42 ìMEv-kd ? COB Rk 14 Wf 75 4 RA Rk 69 A1-c£ Rf 40 500 ? ? Waterhole ìMEd-c A¥ Bucken Bunder Bore (abd) ìMEl-s ìMEd-c ? A¥ DOWNS 50 Waterhole...... A1-c£ ? MOUN Vein and hydrothermal Base metal

65 A2 T W 37

Wf ? ? ìMEk-sl Z Rk Spring ìMEk-s 0 AUGUSTUS 43 0 ìnr-od 86 ìMEd-c ìMEv-sl ìPO-mlpc 4 DOOLEY Spring...... 600 A1 75 ìMEk-kd Dolostone, siltstone, and sandstone Stratabound sedimentary and/or Energy 440 1 Rk 72 Rk ? 1 85 0 75 0 64 C1 landing ground 1 sedimentary banded iron-formation Bore Well 1 4 Bore, well......

1 C1q ìMEv-kd ìPO-mlpc A1 A¥ ìMEv-kd 440 ìMEk-st Wf A3ti 1 ROAD Wf ìnr-od W Rf 75

5

? A1c£ 44 W ìMEd-c Regolith hosted Windpump, solar pump...... 0

C1 4 6 A2 ìMEk-sl zq 4 Cf 4 Rk ìMEk-sl Siltstone; minor fine-grained sandstone Rf C1 ìnr-od 420 0 A¥ Eda Bore (PD) (abd) 12 The Pound ìPO-mlpc ? A¥ Abandoned...... (abd) Rf Rf ìMEk-s Yard 12 C1 ìMEd-c 1 ìMEv-kd ìMO-gmp C1 LYO 70 A¥ A1 Rf 440 W Rk OPERATING STATUS AND SITE IDENTIFICATION NUMBER Position doubtful...... (PD) ? ? A1 Mount Augustus ìMEd-c

43 83 A1 26 35 NS A1 W C1 M A2 85 400 1 A2 ìMEb-sl BLUE BILLY FORMATION: siltstone and mudstone; minor thin- to thick-bedded sandstone; locally sulfidic Mineral occurrence or prospectÝÝ e.g. 1258 Rf C1 ? C1 31 W Cf ìnr-od Rf ìMEk-s ìMEk-sl 1 ìau-sp 48 Peter Pan Bore (abd) ìMEv-kd Ulna Well Mineral occurrence or prospect...... Mount Augustus

? 65 65 0 21 ìMEd-c ìMO-gmaf 600

A2 ìMEd-c 1000 40 ìMEk-sl

ìau-sp 0 0 MINERAL AND ROCK COMMODITIES

440 A2

C1 ? ? 2 1 ìMEi-kd IRREGULLY FORMATION: stromatolitic and non-stromatolitic dolostone, dolomitic siltstone, quartz sandstone, and conglomerate 4 800 ìnr-od

76 66 3 1 66 37 W 8 1 85 74 îå10 1 45 Cf 0 71 Copper...... Cu Rf zq 45 ìMEd-c 70 12 îå10 Rf ? ìMEk-sl Rf 83 ìnr-od MOUNT AUGUSTUS 1 A2 25 ? ìMEd-c Lead...... Pb

C1 ìMEk-s 67 ìMEk-sl 16 420 ìMEd-c 420 70 1105 m PROTEROZOIC ìMEi-st Sandstone, conglomerate, siltstone, and dolostone A2 A2 32 ìau-sp 20 A1 74 1 400 Rk ? A1 74 75 420 ìMEk-s 30 Ben Well 400 Silver...... Ag

18 ìMEk-st 16 460 440 0 C1 ìnr-od Rl ? 48 50 ? 0 A2 Cf 20 Rk ìMW-od Uranium...... U 20' W ìMEk-s 62 440 400 20' 5 C1 ìMEk-st ìMEk-s ìnr-od C1 W ìMEi-sl Siltstone, sandstone, and dolostone ìMR-mhs 00 C1 440 900 ìMEd-c Zinc...... Zn ? 37 ? 40 ìMEk-sl A1 A1 1269 4 ? W ìnr-od W 0 40 08 Rf C1 ìMEk-sl 7 Mount Augustus 50 Rl A1 ? 00 RIVER 08 57 Cu c. ìMEk-sl C1 ? ìMEd-c 1 1620 Ma ìMEy-s YILGATHERRA FORMATION: sandstone, siltstone, conglomerate, and dolostone (section only) Mineral occurrences and numbers are from the GSWA WAMIN database. C1 A2 Vandyke Well (abd) 43 ? ? W 5 Rk 80 C1 C1 00 W PALEOPROTEROZOICÊMESOPROTEROZOIC Rf A2 ? 1 A2 Spinifex Bore ìau-sp ìnr-od

80 1 75 440 A1 ìau-sp 85 4 ? MOUNT PHILLIPS C1 40 ? Yard SHEET INDEX W ìMEk-sl ? 55 ? A1 S A1 ìMEk-sl ìau-sp ???C1 MOUNT AUGUSTUS NATIONAL PARK ? ìau-sp MOUNT AUGUSTUS SANDSTONE: sandstone, pebbly sandstone, and conglomerate; minor siltstone MAROONAH ULLAWARRA CAPRICORN ASHBURTON PARABURDOO SNOWY MOUNT

A2 ? A2 700 17 06 600 ? ? 2051 2151 2251 2351 2451 2551 A2 Rk 06 EDMUNDTUREE CREEK 15 zq 88 ? ZN 28 ìau-sc Conglomerate, pebbly sandstone, and sandstone

? SF 50-14 SF 50-15

1 W ? 460 18 11 4 6

500 88 C10 Boomerang Well MANGAROON EDMUND ELLIOTT CREEK KENNETH RANGE BOGGOLA KALLENIA 420 Red Hill Bore (abd) 50 W MOUNT AUGUSTUS BASIN W ? A1 2050 2150 2250 2350 2450 2550 Rf Leake Spring ? Mangaroon Orogeny (1680Ê1620 Ma) A2 A2 A1 5 Mile Well 600 ìau-sp ? ? W ìMO-gmpi 80 A2

? Yard

84 65 5 EUDAMULLAH MOUNT MOUNT PEEDAWARRA TEANO MOUNT VERNON 0 ? ? 420 22 ìau-sp ? 1680Ê1620 Maå ìDUdi-grpv ìDUpi-gmp PHILLIPS AUGUSTUS

70 0 65 C1 ? Yard 04 85 ? ? ? 2049 2149 2249 2349 2449 2549 ìMO-gmeb ? 04 MT PHILLIPS MT EGERTON ìau-sp ? ? A1 ? Rk ? ? ? ìDUdi-grpv DINGO CREEK GRANITE: porphyritic biotiteÊmuscovite granite; fine to medium grained with thin, tabular K-feldspar phenocrysts defining a trachytic texture SG 50-02 SG 50-03 MOUNT SAMUEL ? LOCKIER YINNETHARRA PINK HILLS CANDOLLE MOUNT EGERTON MULGUL 75 742m 0 ? ? ? 44 ìMR-mts 600 ìDUpi-gmp PINBYANA GRANITE: massive, medium-grained, megacrystic and porphyritic biotite(Êmuscovite) monzogranite; tabular megacrysts of K-feldspar up to 7cm long A2 ? ? Mountain Bore (abd) Durlacher Supersuite 2048 2148 2248 2348 2448 2548 ? ? 80 310 ìau-sc 88 ? Mount Genoa 1 68 420 70 ? S Pb,Cu,Ag 1:100Ý000 maps shown in black 68 S c. ìPO-mlpc ìPO-mtqs A2 ìMR-mts ìPO-mlpc ìMW-od M 1680 Maå 80 38 ìPO-mtqs ? ? O 1:250Ý000 maps shown in brown C2 W ? UN DLANDS ROAD 02 A1 ? T WOO 2169 400 02 Search for current GSWA map products online (www.doir.wa.gov.au/ebookshop) 80 183255 500ìau-sc A1 AUGUSTUS Kendell Bore Northeast 78 ìMEk-st Pooranoo ìau-sp ROAD ìPO-mlpc Phyllite; chloriteÊmuscoviteÊquartz; locally with magnetite porphyroblasts U ìMO-gmeb 80 ? Cobra Bore Standard Bore C1 Metamorphics ìMO-gmeb 72 ìPO-mtqs 82 ? ? ìPO-mtqs Quartzite and muscoviteÊquartz schist; strongly foliated; metamorphosed quartz sandstone, feldspathic sandstone, and quartz-lithic sandstone Rk W 420 85 A1 ìau-sc ? 40 A2 Capricorn Orogeny (1830Ê1780 Ma) 68 72 1 16 C1 ìMR-mts 80 ? 82 85 ? ? 309

80 ? Woodlands Homestead 128km zq 80 Mount Genoa 2 MOUNT GENOA ìMEd-c 71 500 zq Crossroad Well S TN 80 70 U 594m 24 1830Ê1780 Maè ìMO-gmaf ìMO-gmeb ìMO-gmp ìMO-mgml ìMO-mgts ìMO-xmgn-m 420 C1 T 25 Cu ìnr-od ìMO-gmpi îå00 ? S zq ? U MOUNT îå00 62 zq ìPO-mlpc ? ? 1258 ìMEi-kd ìMW-od G A3 Rf GN C1q U S ? ISABELLA Mount Genoa 3 A A ìMO-mgts 75 A2 Samuel Bore S Pb,Cu ìMO-gmaf Pink, fine-grained equigranular to seriate biotite monzogranite MN ? 480 80 ?

75 ? ? ìMEk-s A3 ìMO-gmeb Massive equigranular to sparsely porphyritic biotite monzogranite; medium and coarse grained Z ìPO-mtqs ìMO-gmp 85 70 440 ìMO-gmp Massive, medium-grained, porphyritic biotite monzogranite; round phenocrysts of K-feldspar up to 5 cm in diameter; minor fine- to medium-grained, GASCOYNE COMPLEX 82 ? 45 80 C1 ? A1 ìMEi-st A2 52 sparsely porphyritic monzogranite ìMR-mts 420 ? ? ìMR-mts ? ? 1 GRID / MAGNETIC ìMW-od 80 MOUNT C1 ìMO-gmpi Medium- to coarse-grained mesocratic biotite monzogranite; equigranular to porphyritic; abundant round mafic inclusions

80 85 85 ANGLE 2.0¾ 400 28

98 85 ? A3 Moorarie Supersuite S 98 75 ? A¥ ìMO-mgml Leucocratic, equigranular muscovite(Êbiotite) monzogranite; fine- to medium-grained; weakly foliated zq ìMO-gmp ? 27 N.T. 83 W ìMO-mgts Mesocratic, equigranular to sparsely porphyritic biotite tonalite and quartz diorite; medium to coarse grained; schistose 74 W ìMEi-sl GRID 70 ? 12 Mile Bore (abd) ? 400 65 ìMO-xmgn-m Interleaved, gneissose to schistose, mesocratic biotite granodiorite to monzogranite and leucocratic muscovite(Êbiotite) monzogranite; locally layered, CONVERGENCE Qld 77 C1 ? ? 1 82 80 includes rafts of semi-pelitic schist, amphibolite, calcÊsilicate rock, and quartzite 0.1¾ 75 zq ìnr-od ìMO-gmp zq ìMR-mhs ìMEk-sl W 1246 W.A. 79 85 ? A1 ? 35 Mount Genoa 5 zq 180938 ìMO-gmeb A1 ìMO-gmeb ? ìMEk-sl ? ìMEi-kd ìMEi-st ìMO-gmeb 70 R ìMEi-kd Cu,Pb,Ag A2 S.A.

zq ìnr-od O ìMEi-sl c.

D 1840 Maê ìMR-mhs ìMR-mgn ìMR-mts 420 80 C1q 400 ? ìMEk-sl ? 96 A2 Yard N 80 ? A 30 96 80 Lassie Well A1 L 1 Rk ìMEi-st C1 ìMW-od ? ìMEi-sl 40 70 Daly Bore N.S.W. 75 ìMO-mgml ìMW-od 80 ìMO-gmeb ? ìMEk-sl C1q ìMEk-sl ? ìMR-mhs 75 ìMO-mgts ìnr-od 440 ìnr-od ìMEi-kd A2 (abd) 80 C1 W ìMEi-sl ìMEi-st 18 ìMR-mhs Pelitic and psammitic schist; quartzÊbiotiteÊmuscoviteÊfeldspar schist, quartzÊsericiteÊbiotite schist, quartzÊsericiteÊchlorite schist, metamorphosed .C.T. 88 76 ìMR-mhs ? C1c£ ìMEk-sl A

88 84 38 ? sandstone and granule conglomerate 85 Z C1 1 82 Well (abd) ? ìMEk-sl 1 1 ìMEi-kd Vic. ìMR-mhs 180935 C1 A1 ? 80 80

84 84 60 72 ìMO-gmeb A2 ìnr-od ìMEk-sl A2 ìMEi-kd ìMR-mgn Pegmatite-banded granitic gneiss 65 ? A¥ 68 ìnr-od M 400 70 85 Tank ìMW-od zq ìMR-mhs 81 85 True north, grid north and magnetic north 30 60 80 Swamp Well (abd) ìMEi-sl ? Morrissey Metamorphics

80 180936 A1 80 1 ìMEi-sl A1 ìMR-mts Psammitic schist; quartz-chlorite-muscovite schist 86 86 S ìMR-mhs W 75

80 ìMO-mgts Rf ? C1 are shown diagrammatically for the centre

65 80 65 70 ìMO-mgml 81 1 12 A2

62 76 70 28 ? C1 460 0

80 A1 A¥ M ? ìMEi-st of the map. Magnetic north is correct for Tas.

94 ìMO-mgml 72 ìMEk-sl 4 ? ìMEd-c 4 80 82 ìMW-od 85 Cf W 94 380 80 76 AS ? A§ ìMEk-sl 2007 and moves easterly by about 0.1^ in

81 zq A¥ THOM ? Rk W 35 60 C1 C1 A¥ C1 C A1 ìMEk-sl A2 400 420 W M ìMEk-sl

ìMR-mhs 65 ìMR-mhs 80 73 Boss Bore 70 ìnr-od 4 years. 82 W M 68 ? A2 75 76 RIVER ? C1 400 ? 1 1 ìnr-od ìMEd-c C1 62 C1 85 ìnr-od 20 C1 A1 A1 A¥ C1 75 ìMEd-c zq ìMEk-sl A2 1 45

15 ìMW-od 80 Rf ? 30 85 ìMO-gmeb 1270 ìMEv-sl 520 60

75 Rf Hills ? ? ? A2 Mount Genoa 4 ìMEd-c 4 Howlit Well (PD) zq Pink M 82 A1 460 Rf 12 C1 C1 85 Cu

C1 80 ìMO-gmeb ? ìMEd-c 78 1 C1 82 Rk 440 zq 86 zq C1c ìnr-od 1 500 C ìMO-xmgn-m 80 Creek ?? ìnr-od 1 92 440 îå92ôôôÜN 85 zq ìMEk-sl 78 C1 ? 50 2170 80 81 Rk A1 W zq ìMEd-c Rf 75 Rl 70 G IC A L S U Anomaly P5 Rf ìMR-mhs ìMEd-c ìnr-od L O R V

Rf O E

Rf 1 E Y 480 U ìMW-od 400 ìMEv-sl G ìMO-xmgn-m 85 W 80 25 85 zq ìMEk-sl 480 Department of Geological Survey of 80 W C2 86 c Rl ìMO-gmeb S A1

C1 A E A1 I 84 ìMR-mhs 0 A1 Rf Rk C1 1 460 A2 0 ? S L c 8 Rl Industry and Resources Western Australia 80 8 Rf A ìMR-mhs C1 3 Rl Rf A¥ T C1 3 ? A1 R C1 ìMR-mhs C1 ìMEd-c A2 Rf E T C1 ìMR-mgn 80 C1 C1 W A1 Rf C1 R N A U S 24^30' 24^30' è50ôôôÜE 52 54 56 58 è60 62 64 66 68 è70 72 74 76 78 è80 82 84 86 88 è90 92 94 96 98 ê00 FRANCIS LOGAN, M.L.A. TIM GRIFFIN Burringurrah Community 28km MINISTER FOR ENERGY; RESOURCES; INDUSTRY AND ENTERPRISE EXECUTIVE DIRECTOR 116^30' 40' 50' 117^00'

Gascoyne Complex geology by R. Chin, 1976Ê77, and S. Sheppard, and T. R. Farrell, 2005. Bangemall Supergroup geology by A. T. Brakel, W. A. Davidson, and P. C. Muhling, 1973, SCALE 1:100Ý000 and D. McB. Martin and A. M. Thorne, 2003Ê2005. 1000 0 1 2 34 5678910 Geochronology interpreted from external sources (listed below) and GSWA data (published and in preparation). DIAGRAMMATIC SECTION Some GSWA geochronology may come from samples obtained on adjoining map sheets. GSWA geochronology Metres Kilometres A B UNIVERSAL TRANSVERSE MERCATOR PROJECTION Cobra Synclinorium Fault Geegin Syncline data are available online at http://www.doir.wa.gov.au/aboutus/geoview launch.asp or on disk (Compilation of HORIZONTAL DATUM: GEOCENTRIC DATUM OF AUSTRALIA 1994 MOUNT SAMUEL CORBA MOUNT AUGUSTUS ROAD LYONS RIVER geochronology data Ê updated as required). DATA DIRECTORY ìMO-mgts ìMEk-slìMEk-s ìMEk-st ìMEd-c ìMEv-sl ìMEk-s ìMEk-sl ìMEk-st VERTICAL DATUM: AUSTRALIAN HEIGHT DATUM Geochronology by: Theme Data Source Data Currency Agency Grid lines indicate 1000 metre interval of the Map Grid Australia Zone 50 SEA LEVEL ìau-sc ìnr-od ìnr-od ìMEk-sl ìMEk-s SEA LEVEL (1) WINGATE, M. T. D., and GIDDINGS, J. W., 2000, Precambrian Research, v. 100, p. 335-357. Geology GSWA 1976Ý_Ý2007 Dept of Industry and Resources ìau-sp ìnr-od ìMEi-kd (2) SHEPPARD, S., et al., in press, Journal of Metamorphic Geology. The Map Grid Australia (MGA) is based on the Geocentric Datum of Australia 1994 (GDA94) Structural data WAROX APR 2007 Dept of Industry and Resources ìMEk-sl ìMEy-s ìMEl-s (3) SHEPPARD, S., et al., 2005, Australian Journal of Earth Sciences, v. 52, p. 443-460. GDA94 positions are compatible within one metre of the datum WGS84 positions ìMEi-sl GEOCENTRIC DATUM OF AUSTRALIA Mineral occurrencesWAMIN APR 2007 Dept of Industry and Resources ìMEi-kd (4) EVANS, D. A. D., et al., 2003, Australian Journal of Earth Sciences, v. 50, p. 853-864. (non-confidential) ìMEv-kd ìMEi-st (5) VARVELL, C. A., 2001, Curtin University of Technology, B.Sc(Hons) thesis, 209p. ìMEy-s ìMEi-kd 2 km ìMEi-kd 2 km GSWA geochronology data are available online at www.doir.wa.gov.au/aboutus/geoviewÊ Ýlaunch.asp or on disk. Cadastre TENGRAPH * APR 2007 Dept of Industry and Resources ìDUpi-gmp ìMEk-s ìMR-mts ìMEv-kd Edited by H. Caldon, G. Loan and B. Williams ìMO-gmeb ìMEy-s ìMEy-s Horizontal control GESMAR APR 2007 Landgate Cartography by H. Weiter ìMEi-kd Topographic nomenclature GEONOMA 2007 Landgate ìMEd-c Published by the Geological Survey of Western Australia. Digital and hard copies of this map are available ìMO-gmp ìDUpi-gmp ìMEk-st ìau-sp from the Information Centre, Department of Industry and Resources, 100 Plain Street, East , WA, 6004. Topography Landgate and GSWA field survey 2007 Landgate ìau-sp ìMEi-sl Phone (08) 9222 3459 Fax (08) 9222 3444 Contours NASA SRTM 90m Digital Elevation Data2000 Consultative Group for International Agriculture 4 km 4 km WebsiteÝ www.doir.wa.gov.au EmailÝ [email protected] SHEET 2249 FIRST EDITION 2007 Research Ê Consortium for Spatial Information The recommended reference for this map is: Version 1.0 Ê June 2007 MARTIN, D. McB., THORNE, A. M., and SHEPPARD, S., 2007, Mount Augustus, W.A. Sheet 2249: * GSWA and DoIR database can be viewed online (www.doir.wa.gov.au/aboutus/geoviewÝÊ launch.asp) or can be downloaded from the GSWA Data Western Australia Geological Survey, 1:100Ý000 Geological Series. and Software Centre (www.doir.wa.gov.au/GSWA/downloadcentre) ¦ Western Australia 2007