GEOLOGY OF THE TENNANT REGION M Conglomerate, sandstone, siltstone and mudstone D Sandstone AUSTRALIA 1:500 000 GEOLOGICAL SPECIAL NORTHERN TERRITORY C Clastic and carbonate sedimentary rocks Clh Basalt with minor felsic volcanic and sedimentary rocks Conglomerate, sandstone, siltstone; minor mudstone and diamictite 500 Cenozoic Cz Qa Czk NP 134°30' 4 134°45' 135°00' 133°30' 3 000mE 133°45' 134°00' 400 134°15' 50 50 18°00' 18°00' Pr Undifferentiated Renner Group: quartz arenite, sublithic arenite, siltstone; minor mudstone and conglomerate; rare stromatoltic dolostone. Locally Mesozoic M abundant halite pseudomorphs

STUART HIGHWAY C

8000 8000 Devonian D Pm Undifferentiated Namerinni Group: quartz arenite, sublithic/lithic arenite, Cz dolostone, mudstone; minor conglomerate. Evaporite pseudomorphs locally 10 abundant; stromatolites

Pr Cambrian C Clh Plp Lamprophyre Qa DEVILS SUITE 10 Pr Pgo Syenite Pgd Granite: muscovite-biotite-bearing; porphyritic

5 Pgw Granite/granodiorite; muscovite-biotite and corundum-bearing; equigranular; Pge Leucogranite: muscovite-biotite-bearing Neoproterozoic NPL 10 pegmatitic segregations

20 10 C Pgdu Undifferentiated granite/granodiorite/leuco-microgranite: biotite-muscovite- Cz 18°15' 18°15' 5 bearing Pgy Dacitic to rhyolitic granophyre RENNER

MOUNT GRAYLING (D9) GROUP Cz Pr Gleeson Formation Prg Ptc Mudstone, sandstone, dolostone and chert; stromatolitic bioherms and Cz evaporite pseudomorphs Phy Quartz arenite, feldspathic/sublithic arenite Ptb Quartz arenite, sublithic arenite Phv Siltstone, shale, feldspathic/lithic and micaceous arenite MOUNT SHILLINGLAW MOUNT CASTLE Pta Dolostone, limestone, siltstone, sublithic and quartz arenite 10 Phu Quartz arenite, siltstone, shale; minor feldspathic/lithic arenite; rare Pts Quartz arenite, sublithic and lithic arenite, feldspathic sublitharenite, and conglomerate siltstone Phl Shale, siltstone, lithic/feldspathic arenite, minor mudstone and quartz arenite NAMERINNI Pts dz Siltstone; subordinate interbedded sandstone Phi Subarkosic and sublithic arenite, quartz arenite; minor mafic lava, greywacke, (D7) Hanlon Subgroup GROUP Pts Quartz arenite and minor pebbly arenite; conglomerate chert and ironstone MOUNT WILLIERAY d Phe Feldspathic sublithic arenite, quartz arenite; minor conglomerate 10 Pm Ptm Sublithic/lithic arenite, feldspathic arenite, siltstone; dolostone, sandy 10 dolostone; minor conglomerate Devils Suite (g6) Pr Clh Phb Basaltic lava; feldspathic/lithic arenite and quartz arenite, minor trachyte; rare 30 C 45 Pgw Pge Pgd Pgd u Pgo Pgy? volcaniclastic arenite and siltstone, and chert 15 18°30' Siltstone, feldspathic/lithic arenite, mudstone, limestone and dolostone; 18°30' 25 Phf MOUNT HALL stromatolites Pthw Vesicular andesitic lava; mudstone, siltstone; cherified calcareous siltstone, 25 Phc Quartz arenite, feldspathic/lithic arenite; minor siltstone and altered mafic sandstone; stromatolites ASHBURTON lava 79 MOUNT HAWKER 79 50 5 50 Pthc Sublithic/volcanilithic arenite Upper Wauchope Subgroup HATCHES CREEK GROUP Warrego Granite Elkedra Granite Devils Marble Granite Gosse River East Syenite

Pr TOMKINSON CREEK GROUP Qa DAVENPORT EVENT Pthe Sublithic//lithic/volcanilithic arenite, feldspathic sublitharenite, pebbly arenite; acid to intermediate volcanic rocks particularly at top Phj Felsic lava; minor tuff and ashstone 45 Ptc Pha Dacitic and rhyolitic ignimbrite, lava and tuff; minor feldspathic/lithic, Carmilly Formation Ptc volcaniclastic/tuffaceous arenite and siltstone Pr Ptb Phd Subarkosic and sublithic, volcaniclastic/tuffaceous arenite, siltstone and Bootu Formation Ptb Yaddanilla Sandstone Phy shale; minor felsic volcanic rocks including lava, tuff, and cherty ashstone Phs Subarkosic, sublithic and lithic (partly volcaniclastic?) arenite and quartz RANGE Pthm Lithic/sublithic/volcanilithic arenite, pebbly arenite; shale and siltstone C Vaddingilla Formation Phv arenite, commonly pebbly; minor conglomerate, greywacke and pyroclastic Attack Creek Formation Pta particularly at top Clh STUART HIGHWAY 40 60 Lower Wauchope Subgroup rocks Canulgerra Sandstone Phu Short Range Sandstone Pts Pthb Polymictic orthoconglomerate M Ptsdz 30 Lennee Creek Formation Cz Deagan Member Pts d Phl (T5 & T6) Pln Quartz- mica schist, metamorphosed rhyodacitic volcanics; quartzite; minor

(T5 & T6) Alinjabon Sandstone 60 Morphett Creek Formation Ptm Phi cherty tuff and conglomerate; amphibolite Hanlon Subgroup Pta Errolola Sandstone Phe Pdl Po Undifferentiated felsic ignimbrite, tuff, lapilli tuff and lava; chert; sublithic and ‘WHITTINGTON Clh lithic arenite and wacke; shale and mudstone; pebble beds and Ptm 20 18°45' conglomerate Pg u Undifferentiated biotite granite with porphyritic K-feldspar; locally abundant 18°45' 55 Pts 45 Whittington Range Member Pth w Kudinga Basalt Phb enclaves and xenoliths; locally gneissic 35 Poz Quartz-mica schist, feldspathic/lithic arenite and amphibolite Pgb Ooralingee and Bean Tree Granite: biotite granite with porphyritic K-feldspar, Coodna Member Pth Hayward Creek Formation Frew River Formation c Phf Illoquara and locally abundant enclaves and xenoliths, minor orthogneiss; and Upper Phc Pou Lithic/volcanilithic arenite; heavy mineral-bearing sandstone; felsic tuff Meerie Member Pthm Pth e Coulters Sandstone Phc Sandstone equigranular to porphyritic biotite and biotite-muscovite granite, respectively Pr Pow Sublithic/lithic arenite and siltstone, shale; minor tuff, chert (silicified tuff) Pgy Dioritic to rhyolitic granophyre Ptm Pts 20 d Powv Rhyolitic lava and ignimbrite, tuff and chert (silicified tuff) Pdl Dolerite HATCHES CREEK GROUP Pth 70 TOMKINSON CREEK GROUP Po Porphyry c Pob Felsic crystal-lithic tuff, lapilli tuff, ignimbrite, probable lava, chert; siltstone, 85 Arabulja Newlands Strzeleckie Tinfish 20 50 shale, fine-grained lithic arenite/wacke 20 Palaeoproterzoic Volcanics Volcanics Volcanics Sandstone Pth e 40 45 Rising Sun Pobw Lithic arenite and siltstone, shale; granule conglomerate RANGE Wauchope Subgroup TREASURE SUITE 80 Congl. (in part) Phj (g5?) 30 Yeeradgi Sandstone Phd Pha Pha Php Ledan 55 35 Manga Mauda Member Pov Chert (silicified tuff), tuff; siltstone, shale, fine-grained lithic arenite/wacke Pgz Monzonite, quartz-monzonite (in drillcore); diorite, quartz-diorite 80 40 C Pthm Pln Pgy Pdl Pgb Pg u Pp Lower Schist 50 Pur Pp Felsic porphyry 80 30 40 Unimbra Sandstone Phs (Gwynne Sst) Phs Pom Rhyolitic and rhyodacitic tephra, tuffaceous sandstone, siltstone Pdl Dolerite

10 Blanche Creek Member Treasure Suite (g5?) OORADIDGEE GROUP 20 Pth b Mia Mia Volcanics Treasure Volcanics Poy Undifferentiated lithic/volcanilithic arenite, siltstone, shale; felsic lava, Cz MURCHISON EVENT ? Pgz Pp Pdl ignimbrite, crystal-lithic and lapilli tuff. Quartz arenite, magnetite laminae Poi Felsic tuff and lava; minor feldspathic/lithic arenite and quartz arenite; rare CHURCHILLS HEAD volcaniclastic arenite Brumbreu Pou Poa Ooralingie & Bean Tree Gr Porphyry Poy Lithic/sublithic/volcanilithic arenite, siltstone, shale; sandstone, magnetite Poi Pot Poi Poz s Pot Rhyolitic to dacitic lava and pyroclastic rocks including ignimbrite; felsic 40 sandstone laminae; welded and non-welded felsic crystal-lithic tuff and lapill tuff; minor Formation Pow v intrusives; feldspathic/lithic (including volcaniclastic), arenite, quartz arenite; 50 80 D volcanic Yungkulungu Formation member Pog felsic lava and ignimbrite Pts minor basaltic lava 50 lithofacies sedimentary lithofacies Taragan Sandstone Poa Feldspathic/sublithic arenite, quartz arenite, pebbly arenite, conglomerate; 7900 7900 ~ Unnamed Monzonite Porphyry Poyv Felsic crystal-lithic tuff and lapilli tuff; rhyolitic and rhyodacitic lava and 19°00' (T5) Wundirgi Formation Edmirringee Kurinelli Sandstone Pok Undifferentiated Bullion Lander beds/ ignimbrite; volcanilithic arenite with interbedded siltstone minor siltstone, mudstone and altered felsic lava 15 SHORT Pth 19°00' c Pow Poyi Volcanics Pog Basaltic lava; minor volcaniclastic arenite and felsic lava 30 Warrego Ooradidgee Schist Woolla 30 20 Gneiss Poyi Welded and non-welded felsic crystal-lithic tuff and lapilli tuff; minor felsic Pok Subarkosic/sublithic/lithic arenite, quartz arenite, siltstone; minor felsic and 30 Volcanics Poy Rooneys Pon Group s Por Epenarra volcanic lava and ignimbrite mafic lava and tuff, mudstone, shale, slate and schist C Ptm Pth Pob Formation 75 25 c Pth m,e Volcanics Pon Greywacke, siltstone, subarkosic/sublithic/lithic arenite; minor felsic porphyry; 30 Bernborough 35 40 locally schistose 30 30 Pov Formation 60 Tennant Creek Por Felsic lava and pyroclastic rocks including ignimbrite and lapilli tuff; Qa 70 55 v 40 Pom ~ Po Plb Pll Supersuite (g4) volcaniclastic arenite and conglomerate; minor altered mafic lava RANGE 50 Monument Non-outcropping undifferentiated Pob w volcanic Pors Quartz arenite, volcaniclastic arenite, conglomerate; minor felsic volcanics C OORADIDGEE GROUP Ooradidgee Group ? Pth b Formation lithofacies Pgt Pp Pgg Pgc Pgm Pgh Pg 20 Whippet Sandstone Poyv 45 Plb Metamorphosed pelite, feldspathic/lithic and quartz arenite, quartz-mica Member Pth m,e schist with andalusite, porphyritic felsic volcanics and amphibolite 5 20 55 Pth m,e Pll Quartz-mica schist, feldspathic schist and gneiss; quartzite; amphibolite 50 TENNANT EVENT ? ?? 40 Cz plugs and probable flows 70 Tennant Ck Granite Porphyry Cabbage Gum Granite Channingum Granite Mumbilla Granodiorite Hill of Leaders Granite Unamed Granite 70 Pev 40 Pts Warramunga Formation Pw Junalki Formation Pj Pj 40 (T4) (lm) 30 35 Woodenjerrie beds Pe 30 TENNANT CREEK SUPERSUITE 40 Pts 40 30 55 Pp Felsic porphyry; massive to foliated 60 15 Pth Numbers in brackets refer to the stratigraphic column Pgt Granite: biotite-bearing; seriate porphyritic to equigranular; rapakivi texture; c 30 Cz blue ovoid quartz; locally abundant enclaves, minor xenoliths; foliated, 40 Pth in AHMAD M and SCRIMGEOUR IR (2004), Geological c sheared in part, and locally gneissic Pth e NPL 80 Map of the Northern Territory, 1:2 500 000 scale. 40 40 35 Pgg Granite: biotite-bearing; seriate porphyritic to equigranular; rapakivi texture; MOUNT WOODCOCK 30 Northern Territory Geological Survey. 45 19°15' 19°15' RANGE minor metasediment xenoliths; foliated, sheared in part, and locally gneissic Pthm 40 Pthm Pgc Granite: biotite-bearing; seriate porphyritic to equigranular; rapakivi texture; minor xenoliths and rare porphyritic enclaves 80 80 45 Po Pgm Granodiorite (ranges from tonalite to granite): biotite-bearing; megacrystic; 85 TOTAL MAGNETIC INTENSITY 60 70 GEOLOGICAL REGIONS seriate porphyritic to equigranular; locally abundant porphyrititc enclaves with SHORT 70 70 80 Pob rapakivi texture and blue ovoid quartz; abundant metasediment xenoliths; 70 75 North Star strongly foliated to sheared in part 80 Pow Pom HIGHWAY sea 45 WHIPPET HILL Pg Undifferentiated granite and leucogranite 50 MONEY SHOAL CARPENTARIA 65 BASIN BASIN Pow 65 BARKLY Pgh Granite: biotite and biotite-muscovite-bearing; porphyritic; xenolithic 40 35 75 ARAFURA 65 Po BASIN Pow v 30 ARNHEM INLIER 30 PINE CREEK Pdl Dolerite 75 BONAPARTE OROGEN Pgw 30 BASIN 60 80 40 Pob Clh McARTHUR BASIN 70 75 WARRAMUNGA FORMATION 20 60 Pov Cz DALY JUNALKI FORMATION 55 Pp BASIN Pw Undifferentiated volcanilithic/tuffaceous arenite/wacke (’metagreywacke’) and Orlando Gecko Lithic/volcaniclastic arenite with interbedded laminated siltstone and 65 60 siltstone; shale, including argillaceous banded ironstone (’haematite shale’); Pj 78 WARREGO 78 CARPENTARIA mudstone; rhyodacitic lava, ignimbrite, crystal-lithic tuff and lapilli tuff; chert, 50 Warrego 45 50 BASIN slate ROAD 75 HALLS Pw CREEK Pws Volcanilithic/turbiditic sequence; tuffaceous arenites and wackes jaspilite and argillaceous banded ironstone; minor dacitic to andesitic lava MONUMENT HILL OROGEN (’metagreywacke’); subordinate siltstone; shale including banded argillaceous Argo VICTORIA- DUNMARRA BIRRINDUDU BASIN ironstone (’haematite shale’) White Devil BASIN 45 Pwm Tuffaceous turbiditic rocks with volcanic arenite and wacke subequal or WOODENJERRIE BEDS 19°30' ORD MURPHY subordinate to siltstone; shale including banded argillaceous ironstone 19°30' C Pgt BASIN INLIER Pp QUARTZ HILL (’haematite shale’) Pe Greywacke and lithic arenite, siltstone, shale; subordinate felsic volcanics, 80 WARREGO 70 chert, jaspilite and banded ironstone 80 WHITE HILL 65 Pe v Felsic volcanic and subordinate clastic sedimentary rocks 60 STATION HILL LAWN HILL TENNANT PLATFORM RED BLUFF 55 TANAMI ASHBURTON WISO BASIN NICHOLSON PROVINCE BASIN 60 VICTORIA- Qa MOUNT CLELAND BIRRINDUDU BASIN WARRAMUNGA ROAD 80 80 GUM RIDGE PROVINCE Clh GEORGINA BASIN Pw 80 55 30 REGION MURRABA BASIN DAVENPORT PROVINCE 40 55 Cz ARUNTA REGION TENNANT CREEK CANNING MAGNETIC IMAGE GRAVITY-MAGNETIC COMPOSITE IMAGE BASIN 45 MURRABA BASIN AILERON PROVINCE 133°30' 135°00' 133°30' 135°00' Chariot TC8 18°00' 18°00' 18°00' 18°00' Cz 70 Peko 50 70 NGALIA BASIN 40 70 45 50 MOUNT RUGGED Poyv REGION IRINDINA MOUNT SAMUEL El Dorado 70 PROVINCE 30 WARUMPI PROVINCE AILERON PROVINCE Juno Nobles Nob Pgc AMADEUS BASIN 85 AILERON PROVINCE 70 45 EROMANGA AILERON PROVINCE AMADEUS BASIN BASIN Po 20 C, Clh AMADEUS BASIN Pgg 19°45' Poy 35 EROMANGA 19°45' s BASIN 35 PEDIRKA BASIN Poys 60 MUSGRAVE BLOCK 45

K Central Australian North Australian P4 Archaean Basement M9 E2 85 Ar Younger basins Platform Cover Platform Cover Orogenic Domains Inliers

STUART 0 100 200 300 400 500 km Cz 0 100 200 300 400 500 km

Po Cz Czk Poys Pgm

7800 HIGHWAY 7800 Phs Phe KELLY WEST Qa SCALE 1:2 500 000 SCALE 1:2 500 000 C Po Poyv Po 0 50 100 km 0 50 100 km Pj Clh 135°15' 550135°30' 135°45' 600 136°00' Poy 20°00' Pg s 20°00' D 25 136°00' 136°00' 20°00' 20°00' 60 MOUNT FIGG Phc B

5 15

NMG1 MURCHISON 70 50 50 55 Pe Pj C 65 Phb 45 Pg TANAMI Pp Pe 75 Pg u 60 85 70 Cz DESERT 30 Pe 65 Phs 20 Pp 80 50

RANGE 75 35 86 Pgh 10 70 20 20°15' 20°15' 75 Phe Por

75 80 Phe 70

80 7750 70 80 40 7750 75 Phu 70 Qa 30 Czk MURCHISON Cz 75

80 Qa 60 22°00' 22°00' 22°00' 22°00' Por 133°30' 136°00' 133°30' 136°00' Phs Semi-transparent pseudocolour image of a high-pass filtered Bougeur gravity (density 2,67 tm-3), 55 Grey-scale image of the first vertical derivative of the reduced to pole magnetics. 30 30 draped over an intensity layer representing the first vertical derivitive of the reduced-to-pole magnetics. C Poa 80 12 YOUNGHUSBAND 80 30 50 Pe MOUNT FIGG 85 70 80 70 Pok RANGE 70 63 RANGE 60 80 Phs 85 65 CLOUGH 75 20°30' 20°30' 23 65 80 Phi 85 45 MAGNETIC IMAGE ELEVATION IMAGE 75 18 10 40 80 Por 40 65 85 35 133°30' 135°00' 133°30' 135°00' 30 20 RANGE 80 Phs DEVILS MARBLES 85 18°00' 18°00' 18°00' 18°00' 80 Pog Pon 80 MOUNT CAIRNS 80 Phs 72 70

85 10 Cz Pgd 50 70 Pog 60 80 40 15 75 20 DAVENPORT 50 55 40 65 25 85 Pok 5 30 10 40 15 Phb Pdl Phd 45 56 30 Phc 30 Pok Pgy Phu Poa 20 25 55 Phd 25 30 10 NPL WAUCHOPE Phs 85 30 RANGE 60 30 Pok 50 15 15 Pot STUART 15 Phs Poa 30 80 80 65 25 73 65

70 35 Phe 25 Poa 30 26 55 60 60 35 53 80 35 50 50 Phc 77 20°45' 57 73 22 20 45 55 20°45' Pok 75 50 D 55 60 Phu 30 60 60 Phv 77 75 Poa 00 75 65 7700 Pog FAULT Pot 60 Phc 60 25 82 Phi Phy SCALE 1:2 500 000 SCALE 1:2 500 000 DAVENPORT 65 79 80 77 75 65 72 78 TARAGAN 0 50 100 km 0 50 100 km 75 30 73 Phe POUND

85 50 HIGHWAY Wolfram Hill 50 D 50 35 LONG Phl 85 70 30 Cz 136°00' 136°00' 83 50 Phe 70 35 60 75 FAULT Phb 20°00' 20°00' RANGE 80 58 MIA 25 10 78 23 NPL 20 70 20 45 MIA 65 63 20 60 70 25 45 Phe Qa Poi 35 Po 83 Phi Pok 55 80 80 70 60 Phs 21°00' Pot Poa Pha 21°00' 55 48 70 65 25 DAVENPORT 40 70 Pg u 65 50 70 DAVENPORT 55 85 85 30 65 Cz Phc Cz 65 60 50 85 85 Phs Phj 30 80 RANGE RANGE Pha Cz 70 Poz Phc 75 50 80 55 45 20 40 Pgd u Pha 80 Pha 35 70 CRAWFORD 65 35 MOUNT STRZELECKI 50 Phc 55 Qa Czk 45 70 75 OSBORNE 75 50 Phc Pok 45 50 50 45 Phi 55 Phc 70 65 85 80 75 Pha 65 80 75 70 30 RANGE 60 Phc 70 60

75 70 MOUNT MORPHETT 80 50 7650 55 Phc 7650 21°15' 21°15' 75 70 Phe 75 Pha 80 22°00' 22°00' 22°00' 22°00' Pgb MOUNT ALONE 75 60 70 65 70 70 133°30' 136°00' 133°30' 136°00' 80 L 70 Phs 10 NP 70 Pseudocolour image of the reduced to pole magnetics with synthetic sun illumination from the northeast. Pseudocolour image of digital elevation with synthetic sun illumination from the northeast. C 65 55 70 Phl RANGE 70

Quartz dykes 35 Phc Pgd u Pha 65 65 20 60 TAYLOR HILLS 55 75 Pok Phs Phc Pg u INDEX TO ADJOINING MAPS SUPPLEJACK 132°00' 138°00' Qa 80 60 CLIMATIC GRAPHS Pha 17°00' 17°00' 80 TENNANT CREEK SE 53-5 70 Plb 80 Data used: 1969-1991 SE 53-6 SE 53-7 SE 53-8 70 50 Pgy NEWCASTLE 50 25 BEETALOO WALLHALLOW CALVERT HILLS FAULT Quartz dykes WATT 65 Pok MAP LOCALITY WATERS 50 Pot 70 88 TEMPERATURE RAINFALL 25 STAPLETONS C mm SE 53-9 SE 53-11 SE 53-12 80 Phc SE 53-10 PINNACLE Pge Pon 85 40 100 DARWIN SOUTH LAKE BRUNETTE MOUNT 50 HELEN SPRINGS MOUNT NELSON 70 WOODS DOWNS DRUMMOND 50 21°30' 21°30' 40 30 80 DONKEY 34 RANGE Pge SE 53-13 Pgb 20 60 SE 53-14 SE 53-15 SE 53-16 Qa GREEN SWAMP TENNANT CREEK ALROY RANKEN CREEK 10 40 NORTHERN WELL 10 5°15'E

FAULT Phc 0 20 TERRITORY

4°30'E 4°45'E Pha C SF 53-1 SF 53-2 SF 53-3 5°30'E SF 53-4 RANGE 80 Cz NPL -10 0 LANDER RIVER BONNEY WELL FREW RIVER AVON DOWNS J FMAMJ J ASOND J FMAMJ J ASOND 70 Phs MOUNT GWYNNE NPL 80 C Annual Average 421.1mm FORSTER Poz SF 53-8 SF 53-5 5°00'ESF 53-6 SF 53-7 STIRLING SANDOVER Data provided and reproduced MOUNT PEAKE BARROW CREEK ELKEDRA RIVER MOUNT STIRLING with the permission of the ALICE SPRINGS D Bureau of Meteorology 30

6°E 7600000mN 7600000mN SF 53-9 SF 53-10 SF 53-11 SF 53-12 NPL 5°45'E GEOLOGICAL SYMBOLS NAPPERBY ALCOOTA HUCKITTA TOBERMORY 23°00' 23°00' 132°00' 138°00' 21°45' 21°45' MAGNETIC DECLINATION FAULT 2 Qa Geological boundary; mapped or interpreted Cz Blue lines show magnetic declination for epoch 1995 derived Qa C Fault; mapped or interpreted from the 1995 AGRF model. Magnetic declination for 2001 is Pg u approximately 4°47' at the centre of the map. Annual change is Disconformity, legend only 1' per year easterly. Information is current for 2001. 5 80 Cz MOUNT TOPS HIGHWAY Unconformity, legend only SPRING D 45 Strike and dip of strata HIGHWAY 75 OORALINGIE 65 Strike and dip of strata, facing unknown Mapped Proterozoic geology: 1981-1997: DH Blake, AJ Stewart, IP Sweet (BMR) RANGE SANDOVER N Donnellan, KJ Hussey, S Wyche, CL Horsfall, RS 75 Strike and dip of inverted strata Morrison, PR Beier, AJ Crispe, L Bagas, PW STUART Czk 80 Cz Haines, DI Scott (NTGS) 65 Strike and dip of cleavage Pln Pg u 80 Geophysical interpretation: 2000-02: N Donnellan, A Johnstone A 80 FAULT Strike of vertical strata Compiled: 2000-02: N Donnellan 30 80 Strike of vertical cleavage Adnera Gap MOUNT OCTY 75 Strike and dip of foliation Digital cartography and design: 2000-04: G Dempster, B Bousfield 22°00' 22°00' 4 134°15' 134°30' 450 134°45' 500 135°15' 550135°30' 135°45' 6 Strike of vertical foliation 133°30' 350000mE 133°45' 134°00' 00 135°00' 00 136°00' Associated map: DONNELLAN N, and JOHNSTONE A. 2004, Mapped and Interpreted 75 Strike and dip of platy alignment Geology of theTennant Region 1:500 000 scale. Northern Territory Geological Survey, Darwin and Alice Springs. Warrego Mine site The Northern Territory Government does not warrant this map as definitive, nor free from error and does not accept A Cross section liability for the loss caused or arising from reliance upon information provided herein. The information presented in this map is current to the 1st March 2004. Future modifications may be made as new information becomes available. SCALE 1:500 000 Produced by, and plot on demand created by, Northern Territory Geological Survey, Cartographic Services, TOPOGRAPHICAL SYMBOLS Department of Business, Industry and Resource Development, Alice Springs, Australia. Issued under the authority of 10 01020304050 Kilometres the Minister for Mines and Energy, The Honourable KONSTANTINE (KON) VATSKALIS, MLA. Sandridges Base map compiled by NTGS from 1:250 000 scale topographic data supplied by the National Mapping Division, UNIVERSAL TRANSVERSE MERCATOR PROJECTION, ZONE 53 Cliff or escarpment Geoscience Australia, Department of Industry, Tourism and Resources. GEOCENTRIC DATUM OF AUSTRALIA 1994 (GDA94) MAP GRID OF AUSTRALIA 1994 (MGA94) Sealed highway It is recommended that this map be referred to as: DONNELLAN N, 2004. Geology of the Tennant Region 1:500 000 scale. Northern Territory Geological Survey, Darwin and Alice Springs. Sealed road DIGITAL DATA: Map data can be obtained from NTGS as hardcopy plots and in digital files in Mapinfo and MicroStation Unsealed road formats. Information on formats, release conditions, and costs are available from Minerals and Energy Information Centre, Vehicle track 3rd Floor Centrepoint Building, Darwin. Phone (08) 8999 6443, or visit the NTGS web site at www.minerals.nt.gov.au/ntgs. SCHEMATIC SECTIONS A - B and C - D Railway Attitude of faults not known B A Pipeline - gas Scale V = 1 H River, creek Gas pipeline Hanson River Stuart Highway Mount Gwynne Watt Range Railway Murray Creek Davenport Range Frew River Teatree Creek

Phe Phd Phd Northern Northern Phb Phe Phi Territory NPL Pha, Phs Phc Phl Pot Territory Pln Pgb Poa Pdl Por Government Pot Geological Department of Business, Phc Pgd Pok Pg u Plb Phs u Pog Por Pg u Industry and Resource Pll Pon Survey Development Poa Pe Phs Phc

Pok

Richard Brescianini, Director, Northern Territory Geological Survey

GEOLOGY OF THE TENNANT REGION C Gas pipeline Railway Quartz Hill Stuart Highway Monument Hill D

Phs Phs Por Pg Pgg Pgt Pgt Pp Pw Pob Pob Pom C C FIRST EDITION 2004

Po Po Pth Por Po Pgt Pg m,e Po NORTHERN TERRITORY GOVERNMENT 2004 Pw Oc

WARNING: Colours will fade with prolonged exposure to light.