400
500
1500-1600
> 3000_
NTGS surveys
250
300
150
200
Younger basins Central Australianplatform cover
North Australianplatform cover Orogenic domains Archaean basement
inliers
MURPHYINLIER
LAWN HILLPLATFORM
ARAFURABASIN
DALYBASIN
PINE CREEKOROGEN
MONEY SHOALBASIN
DAVENPORTPROVINCE
TENNANT
REGION
CARPENTARIABASIN
ARNHEMINLIER
BONAPARTEBASIN
ORDBASIN
VICTORIA-BIRRINDUDU
BASIN
WISO BASIN
McARTHUR BASIN
CARPENTARIABASIN
DUNMARRABASIN
IRINDINAPROVINCE
NGALIA BASIN
ARUNTA
REGION
WARRAMUNGAPROVINCE
TANAMI
REGION
AMADEUS BASINEROMANGA BASIN
CANNING BASIN
WARUMPI PROVINCE
MURRABA BASIN
PEDIRKA BASIN
SOUTHNICHOLSON
BASIN
GEORGINA BASIN
HALLSCREEK
OROGEN
VICTORIA-BIRRINDUDU
BASIN
WOLFE CREEKBASIN
MUSGRAVE PROVINCE
AMADEUS BASIN
AMADEUS BASIN
EROMANGA BASIN
MURRABA BASIN
AILERON PROVINCE
AILERON PROVINCE
AILERON PROVINCE
TOMKINSONCREEK
PROVINCE
AILERON PROVINCE
SIR EDWARD PELLEW GROUP
MARIAISLAND
GROOTEEYLANDT
GULF
OF
CARPENTARIA
CAPEDON
MELVILLEISLAND
BATHURSTISLAND
TIMOR
SEAVAN DIEMEN GULF
BEAGLE
GULF
JOSEPH
BONAPARTE
GULF
ARAFURA SEA
PERON ISLANDS
WESSEL ISLANDS
WESTERN AUSTRALIA
QUEENSLAND
NEW SOUTH WALES
TASMANIA
VICTORIA
A U S T R A L I A
NORTHERNTERRITORY
SOUTH AUSTRALIA
KATHERINE
Jabiru
ALICE SPRINGS
TENNANT CREEK
Yulara
DARWIN
Nhulunbuy
JUNCTION BAY
FOG BAY DARWIN MILINGIMBI
TRUANT ISLAND
GOVE
PORT LANGDONPINE CREEKCAPE SCOTT
PORT KEATSKATHERINE URAPUNGA ROPER RIVER
PELLEWMOUNT YOUNGLARRIMAHDELAMEREAUVERGNE
WATERLOODALY WATERS TANUMBIRINI ROBINSON RIVER
WALLHALLOW CALVERT HILLSBEETALOO
HELEN SPRINGS
LIMBUNYA
BIRRINDUDU
TANAMI TANAMI EAST TENNANT CREEK
LANDER RIVER
MOUNT PEAKE BARROW CREEK
ALROY
FREW RIVER
RANKEN
AVON DOWNS
ELKEDRA
TOBERMOREYHUCKITTA
HAY RIVER
ALCOOTA
ALICE SPRINGS
NAPPERBY
HERMANNSBURG
LAKE AMADEUS HENBURY RODINGA
AYERS ROCK KULGERA FINKE
MOUNT THEO
MOUNT DOREENLAKE MACKAY
MOUNT RENNIE
BLOODS RANGE
MOUNT LIEBIG
HALE RIVER
McDILLS
WAVE HILL
BONNEY WELL
BLUE MUD BAYMOUNT EVELYN
BATHURST ISLAND
ARNHEM BAY
MELVILLE ISLAND COBOURG PENINSULA
ALLIGATOR RIVER
WESSEL ISLANDS
CAPE BEATRICE
MOUNT MARUMBA
FERGUSSON RIVER
HODGSON DOWNS
VICTORIA RIVER DOWNS BAUHINIA DOWNS
NEWCASTLE WATERS
BRUNETTE DOWNS MOUNT DRUMMONDWINNECKE CREEK SOUTH LAKE WOODS
GREEN SWAMP WELL
MOUNT SOLITAIRE
SANDOVER RIVER
THE GRANITES
HIGHLAND ROCKS
ILLOGWA CREEK
PETERMANN RANGES
SIMPSON DESERT NORTH
SIMPSON DESERT SOUTH
0 100 200 300 400 500 km
SCALE 1:2 500 000
132°E
132°E
135°E
135°E
129°E
129°E
138°E
138°E
24°S 24°S
21°S 21°S
18°S 18°S
15°S 15°S
12°S 12°S
26°S 26°SS O U T H A U S T R A L I A
QU
EE
NS
LA
ND
WE
ST
ER
N
AU
ST
RA
LI
A
GEOLOGICAL REGIONS
0 100 200 300 400 500 km0 100 200 300 400 500 km
SYMBOLS
Main road..........................................
Secondary road.................................
Railway..............................................
Albers Equal Area ProjectionCentral Meridian 133°30' EAST
Standard Parallels 13°30' and 23°30' SOUTHGeocentric Datum of Australia 1994 (GDA94)
WARNING: Colours will fade with prolonged exposure to light
SIMPSON DESERT SOUTH1:250 000 geological map sheet.......
Watercourse......................................
Central AustralianPlatform Cover
North AustralianPlatform Cover
Archaean BasementInliers
Orogenic Domains
Younger basins
MAGNETIC DEPTHS of the NORTHERN TERRITORY
250 km50 0 50 100 150 200
BOUGUER GRAVITY
AIRBORNE SURVEY SPECIFICATIONS
0 100 200 300 400 500 km
400
500
1500-1600
> 3000_
NTGS surveys
250
300
200
_
NTGS surveys
150
Airborne SurveyFlight Line Spacing (m)
Vertical derivative of Bougueranomaly.
Palaeoproterozoic orogenicdomains (>1.8 Ga) form thebasement to the North AustralianCraton (Pine Creek Orogen,Tanami and northern Aruntaregions, Warramunga Province,and Murphy and Arnhem inliers).They include remnants ofArchaean rocks (>2.5 Ga).
Palaeo- to Mesoproterozoic(1.8 - 1.4 Ga) sedimentaryplatform covers include theMcArthur, South Nicholson andVictoria-Birrindudu basins andthe Tomkinson Creek andDavenport provinces of theTennant Region.
To the south, the rocks of theNorth Australian Craton pass intothe Central Australian mobilebelts (Warumpi, Irindina andMusgrave provinces).
0.20.512
5
10
20
km
Depth of a dipole
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Ian Scrimgeour, Director, Northern Territory Geological Survey
MAGNETIC DEPTHS of the NORTHERN TERRITORY2008 edition
Oc NORTHERN TERRITORY GOVERNMENT, 2008
Compiled: R Clifton 2008A vertical derivative of the NT TMI stitch was reduced to pole normally, seen here in red. A further reduction to pole with constant 040° inclination and 090° declination is shown in green.
The resulting stereogram needs red-green glasses for full effect.Where red and green light are equal in superposition, the eye perceives yellow.
Cartography: IM BurganProduced by the Northern Territory Geological Survey, Department of Primary Industry, Fisheries and Mines, Darwin, Australia.
Issued under the authority of the Minister for Mines and Energy, Mr CHRIS NATT MLA.This map is available from Minerals and Energy Information Centre, 3rd Floor Centrepoint Building, Darwin. Phone (61) 8 89996443, Fax (61) 8 89995221, Email [email protected].
The recommended reference for this map is: Clifton R, 2008. Magnetic Depths of the Northern Territory, 1:2 500 000 scale. Northern Territory Geological Survey, Darwin.
The quality of the data used toconstruct the magnetic depthsimage is a function of the flightline spacing, along line sampling,flying height and positionalaccuracy.
Surveys undertaken with a flightline spacing of 500 m or lesswere flown at an altitude of60 - 100 m above ground level.Surveys which employed a flightline spacing in excess of 500 mwere flown at an altitude of150 - 400 m.
