138°00'E 670000 680000 690000 700000 710000 720000 730000 137°30'E 740000 750000 760000 770000 780000

0 0 M-rm 5

1 (MOONTA SUBDOMAIN)

0

0

1 0 0 5 0 TOTAL MAGNETIC INTENSITY 0 00 6290000 1 6290000 PRE-NEOPROTEROZOIC BASEMENT GEOLOGY 33°30'S Scale 1:250 000 Mh2 Mh2 Lxw, M-rm LM1 5 0 5 10 15 20 Kilometres

Projection: Universal Transverse Mercator, Zone 53 Lh Grid Coordinates: Map Grid of 1994 (MGA 94) Lxw 1 Horizontal Datum: Geocentric Datum of Australia (GDA 94) FISHERMAN BAY 0

0

M-rm 0 M-rm M-rm Olympic Domain 6280000 6280000 M-rm aa Late argillic alteration zone; very weakly magnetic, magnetite-destructive alteration 0 0 20 0 PORT BROUGHTON

Mh2 1 M-rm

33 Alkali feldspar + magnetite ± calcsilicate ± biotite metasomatic alteration bodies

0 0 0 0 1

1 M-rm Hiltaba Suite

Mh1 Moderately to strongly magnetic granitoids

0 0 Lxw

5 5 M-rm Mh3

COWELL c i Mht Tickera Granite Predominantly strongly magnetic granite

6270000 0 6270000 o

5 z

o Wandearah Formation intruded by Tickera Granite at shallow depth; strong magnetic

r Mht, Lxw 0 signature of granite evident through metasedimentary cover 0 e

1 t

5 Mh2 o 0 34 r

Mht, Lxw p Mh2 Moderately to weakly magnetic granitoids o

Ld1 s e Mh3 Weakly magnetic to non-magnetic granitoids 0 M 10 LM1 Mh4 (Lx) Strongly magnetic granitoids (including Curramulka Gabbronorite), with some Mh2 Wallaroo Group metasediments and metavolcanics Predominantly moderately to strongly magnetic granitoids, with some Wallaroo Group 6260000 0 6260000 Mh (Lx) 5 50 metasediments and metavolcanics 0

0

1

1 1

0

0 Mht 0 0 Lxww

Predominantly weakly magnetic, albitic, quartzose and calcsilicate metasediments with

5 5 0 0 35

0 0 0 minor more strongly magnetic horizons; minor intercalated metavolcanics; possible

5

0 0 0

0 Wandearah Formation

0

0

0 0

1 1

ALFORD 0 minor Hiltaba Suite granitoid intrusions

2 2 0

5

Lxwn 0 Scale 1:2 000 000 1 Aagot Member Predominantly very weakly magnetic metasiltstone, sandstone and some calcsilicates 0 50 Kilometres Lh Ld1 aa Variably weak to moderately magnetic metasediments and intercalated metavolcanics Domain boundaries modified after Ferris et al, 2000 Mh2 Doora Member (including the Wandilta Amphibolite); some narrow, linear, strongly magnetic anomalies probably represent magnetite-biotite metasomatism along shear zones Major fault Unconformity 6250000 Mht, Lxw 6250000 Mh (Lx) Weakly magnetic metasediments, sometimes graphitic or calcareous; carbonate-rich breccia Domain boundary inferred - obscured by younger granites BUTE and skarn bodies; some discontinous strongly magnetic anomalies, probably metasomatic Downfaulted and covered by thick Neoproterozoic sediments Lh 36 37 aa Mht, Lxw Weakly magnetic metasiltstone with minor calcareous horizons Mht NORTH BEACH Lxeo

M-rm 5

1 5 0 0 0 Lxw aa 0 MOONTA INSET MAP showing WALLAROO 38 MINES and PROSPECTS

Lxw, M-rm Variably magnetic felsic and minor mafic metavolcanics (Renowden Metabasalt) 0 0 Lxew 11 0 Wardang Volcanics

0 6240000 0 6240000 with intercalated metasediments of the Aagot Member 2

5 9 1 M-rm KADINA 7 40 Lxwn 50 Lxwd 1 8 0 Moonta Porphyry Weakly to moderately magnetic felsic metavolcanics 3 2 12 Lx, Mh, M-rm 4 nT 41 5 6 c Lxem, 5123.95 Scale 1:1 000 000 34°00'S i Intercalated felsic metavolcanics and metasediments of the Moonta Porphyry and Doora Member 13 14 0 50 Kilometres 10 Lxwd o Lxwd 568.23 42 z 15 o

Lx, Mh 39 r Moderately to weakly magnetic, felsic and lesser mafic (Willamulka Metabasalt) metavolcanics

313.40 Pseudocolour Image of Total Magnetic Intensity reduced to the pole 43 e and intercalated metasediments (Wokurna Member); intruded by the Bute Metadolerite 17 t 16 with a northeast sun angle illumination. 5 34°00'S MOONTA Lxwd 0 o 58.57 See Airborne Survey Index for data acquisition details M-rm r Moderately to weakly magnetic, undifferentiated Weetulta Formation, 19 44 p Lxe, Mh 18 24 Lxem o intruded by Hiltaba Suite granitoids -196.25 Lxww 20 e a

l 21 -692.71 6230000 PASKEVILLE 6230000 Undifferentiated metasediments and metavolcanics, variably weakly to moderately magnetic, 25

a 26 intruded by Hiltaba Suite granitoid 23 P Undifferentiated Wallaroo Group and Hiltaba Suite granitoids, containing strong magnetic 27 Lx-m Mh (Lx) KULPARA 28 Lx, Mh, M-rm anomalies, probably metasomatic bodies MOONTA Mh2 29 Lxem, Lxwd Lx-m Broad areas of moderately to very strongly magnetic Wallaroo Group probably reflecting widespread magnetite ± biotite ± albite alteration and some intrusion by Hiltaba Suite granitoids

Lxe, Mh Lxw Undifferentiated Olympic Domain Basement Scale 1:100 000 FIRST VERTICAL DERIVATIVE OF TOTAL MAGNETIC INTENSITY 0 2 Kilometres Lxw 45 Wallaroo Group intruded by predominantly magnetic Hiltaba Suite granitoids; typically LM1 buried by thick Neoproterozoic and/or Cambrian sedimentary cover Mines and lodes (abandoned) Commodities Mineral Field Lx, Mh 6220000 Lxw 6220000 5 Mh1 30 1 Wallaroo main lode Cu Wallaroo 0 2 Stirling, Matta lodes Cu, Au Wallaroo Mh1 Spencer Domain 3 Devon lodes Cu Wallaroo

Mh2 4 Kurilla mine (Morphetts, Halls lodes) Cu Wallaroo

1 1 0

0 Hutchison Group and Predominantly weakly magnetic gneissic metasediments with some narrow strongly 5 Duryea lode Cu, Au Wallaroo 0

0 Lh Minbrie Gneiss magnetic horizons 6 Bingo lodes Cu Wallaroo 7 Wandilta lode Cu Wallaroo Mh (Lx) 8 Cornwall, New Cornwall lodes Cu Wallaroo Lx-m Lincoln Complex (predominantly Donington Suite) 9 unnamed Cu, Au Wallaroo

10 Doora lode Cu Wallaroo 1

M-rm 1 Weakly magnetic paragneiss (including Corny Point Paragneiss), with weakly to moderately 11 Poona lodes Cu, Au Moonta 0

0 Ll 2 2

0

0 LM1 magnetic Donington Suite granitoids and granitoid gneisses

0 0 12 Parramatta lode Cu, Au Moonta 0 0 13 Wheal Hughes Cu, Au Moonta Moderately to strongly magnetic gneiss (predominantly Donington Suite granitoid gneisses) 6210000 46 Lxe, Mh 6210000 Ld 14 Mid Moonta lode Cu, Au Moonta CLINTON with abundant linear magnetic anomalies reflecting shearing and foliation 15 North Yelta, Euko lodes Cu, Au Moonta Lx-m 16 Tuxford (Tank) lode Cu, Au Moonta WEETULTA Mh (Lx) Mh3 Ld1 Moderately to strongly magnetic granitoid and granitoid gneiss 17 Yelta lodes Cu, Au Moonta Lxw 18 MacDonnell, Fergusson, Dominic, Cu, Au Moonta M-rm Lxww Hogg, and Buchan lodes ARTHURTON Ld2 Weakly magnetic granitoid and granitoid gneiss 19 Hall, Alice, and Hancock lodes Cu, Au Moonta 20 Harvey, Young lodes Cu, Au Moonta 21 Green lode Cu, Au Moonta Mh (Lx) 22 Beddome lode Cu, Au Moonta M-rm 23 Musgrave lode Cu, Au Moonta Lxwa 0 M-rm 5 0 24 Moonta Extended, Wild Dog lodes Cu, Au Moonta 0

1 0 25 Elder's (Taylor's) lode Cu, Au Moonta

Lxe, Mh 0 6200000 2 6200000 26 Elder West, Bennett lodes Cu, Au Moonta 0 27 Karkarilla, Treuer lodes Cu, Au Moonta BALGOWAN 0 5 28 York lode Cu, Au Moonta

0 29 unnamed Cu, Au Moonta Lxwa 0 Mh1 0 30 Penang Fe, Cu, U 1 47 Lx, Mh 31 Parara Cu, Au, U 32 Hillside Cu, Au, U

M-rm Prospects 50 MAITLAND 33 Katinka Cu, Au Lxew 34 Vock Cu

5 35 East Alford Cu, Au 0 36 Alford Cu, Mo, U 31 6190000 6190000 37 North Kadina Cu 38 Black Oak Plain Zn, Pb 39 Pridhams Cu 40 Smithams, East Kadina Zn, Pb, Cu Mh1 41 West Doora Cu Wallaroo ARDROSSAN M-rm 50 42 Central Doora Cu Wallaroo Mh1 43 Bert Allen Cu Wallaroo 44 Vulcan Cu 45 King George Fe, Cu, Au 46 Tea Tree Glen Cu, Ni, REE 47 Balgowan Fe, Cu 48 Port Julia Cu, REE

34°30'S Lxe, Mh Lx, Mh 6180000 PORT VICTORIA 6180000 Lx-m Mh3 34°30'S Lxew 32 Mh (Lx)

Lx, Mh

PINE POINT 4 6170000 6170000 9 6 Lxwa 3 Scale 1:1 000 000 0 50 Kilometres Mh4 (Lx) 5 Ld1 1 First vertical derivative of Total Magnetic Intensity greyscale image. See Airborne Survey Index for data acquisition details 50 8 1 00 Lx, Mh 2 48 Ll 00 M-rm 6160000 6160000

CURRAMULKA

Ll 500

Lxwa 2 Mh (Lx) LM1 Ld1 7

6150000 MINLATON 6150000 Ld1 PORT VINCENT

6140000 6140000

Ld1 Ll

0 STANSBURY CORNY POINT 0 5 Ld1

5 0 Ld Ld2 0 0 6130000 0 6130000 1

LM1 5 0

35°00'S WAROOKA Ll Ld 35°00'S CREDITS Compiled by O. Raymond, Geoscience Australia, 2001-02. Revised 2003 YORKETOWN 6120000 6120000 Geophysical image processing by O. Raymond, Geoscience Australia

Gravity data compiled and gridded by N. G. Direen, Geoscience Australia EXPLANATORY COMMENTS The geology dataset was compiled primarily from interpretation of airborne Cartography by L. M. Highet, Geoscience Australia magnetic data and drill hole logging, along with gravity and minor AEM data.

0 The magnetic data used for the interpretation was compiled by GA and PIRSA 5 0 Produced and printed by the Geospatial Applications and Visualisation Unit, geophysicists from numerous regional government surveys and more detailed 0 1 0 Geoscience Australia using ESRI ArcGIS software private company surveys. The TEISA magnetic dataset (flown 1999, 400 metre 0 2 line spacing) comprised the bulk of the data over the land area of Yorke BIBLIOGRAPHY Peninsula. Drill hole data comprised logs from the PIRSA database, as well

0 It is recommended that this map be referred to as: as logging by the author. 0 0 Raymond O., 2003, Yorke Peninsula (Moonta Subdomain), Geophysical 1 10 0 0 Interpretation of Pre-NeoProterozoic Basement Geology 1:250 000 scale The model of depth-to-basement was calculated using the ANUDEM 6110000 0 0 6110000 5 map (Second edition). Geoscience Australia, Canberra topographic modelling algorithm and was based primarily on drill hole data and 0 the mapped limits of basement outcrop. Depth-to-basement in the area of the 00 0 1 Ld 0 COPYRIGHT Stansbury Basin (SE of the survey area) was based on previous modelling by 0 1 C Commonwealth of Australia 2003 SRK Consulting (available from PIRSA). Depth-to-basement data was gridded and contoured using the Topogrid module of ArcInfo 8.0.2 and the Spatial Analyst Ld This work is copyright. Apart from any fair dealings for the purposes of study, extension of Arcview 3.2. Geophysical and depth-to-basement images were research, criticism or review, as permitted under the Copyright Act, no part exported as BIL files from ER Mapper 5.5. may be reproduced by any process without written permission. Inquiries should be directed to the Communications Unit, Geoscience Australia, The vector data was digitised and compiled using ArcInfo 8.0.2. The map was GPO Box 378, Canberra City, ACT, 2601. constructed using ArcGIS 8.2. Revisions in ArcGIS 8.3

DISCLAIMER DIGITAL DATA 6100000 6100000 Geoscience Australia has tried to make the information in this product The digital data are also presented as an online GIS at http://www.ga.gov.au as accurate as possible. However, it does not guarantee that the information is and certain datasets are available for download in ArcView and MapInfo formats. MARION BAY totally accurate or complete. THEREFORE YOU SHOULD NOT RELY SOLELY Complete metadata is also available: refer to Geocat # 39835. Ll ON THIS INFORMATION WHEN MAKING A COMMERCIAL DECISION. GEOPHYSICAL DATA PUBLICATION NOTE Geophysical data can be obtained from: Published by Geoscience Australia, Department of Industry, Tourism and Office of Minerals and Energy Resources, SA Bouguer gravity pseudocolour image 7th Floor, 101 Grenfell St, GPO Box 1671, 5 Resources, Canberra, Australia. Issued under the authority of the Minister for 0 Industry, Tourism and Resources. , , 5001 50 Ph (08) 8463 4154, Fax (08) 8463 4155 AVAILABILITY http://www.minerals.pir.sa.gov.au Copies of this map can be obtained from: Sales Centre, Geoscience Australia 6090000 6090000 GPO Box 378, Canberra, ACT, 2601 670000 680000 690000 700000 710000 720000 137°30'E 730000 740000 750000 760000 770000 138°00'E 780000 Ph (02) 6249 9519, Fax (02) 6249 9982 137°00'E http://www.ga.gov.au