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Andamooka, Stuart Creek, Arcoona, Lake Torrens, Todds Dam, Lake Arthur, Woodforde Hill and Murdie Island (the Stuart Shelf Project). Joint first partial surrender report at licences' expiry/renewal, for the period 2/5/1975 to 16/6/1986.
Created: 11 Nov 2024 Revised: 11 Nov 2024
Author: Paterson, H.L.;Muir, P.M.;Uppill, R.K.;Hinde, J.S.;Arden, P.J.

WMC's Stuart Shelf exploration activities from 1975 to 1985 have sought mainly Olympic Dam style mineralisation (copper - uranium - precious metals in haematitic breccia host rocks), with lesser emphasis directed at: possible distal analogues of...

WMC's Stuart Shelf exploration activities from 1975 to 1985 have sought mainly Olympic Dam style mineralisation (copper - uranium - precious metals in haematitic breccia host rocks), with lesser emphasis directed at: possible distal analogues of the Olympic Dam orebody, volcanogenic massive sulphide deposits, unconformity - related uranium vein deposits, discrete gold - only mineralisation, and stratiform copper mineralisation within the Adelaidean cover sequence. To address the primary aim, coincident magnetic and gravity anomalies were defined and gridded, and drill target selections were based on intersecting the source of the gravity anomaly. To illustrate the types of magnetic and radiometric features that have been investigated, data from an airborne geophysical survey flown in 1979 are being released in full, even though the survey covers ground not yet relinquished. Exploratory work has included 3 phases of regional gravity surveys, trials of electrical prospecting techniques such as IP and magnetotelluric surveying, and the drilling of 21 diamond holes, of which 4 failed to intersect the basement, plus also the drilling of 2 percussion holes to test shallow-sourced features. All holes were geophysically logged, with some included formation temperature measurements, and the drill samples were subjected to detailed petrological and petrophysical assessments. Many occurrences of copper, silver, gold, uranium and rare earth mineralisation were intersected in metamorphosed, often dyke - cut, brecciated and recrystallised basement rocks. The basement geology is complex, and lithologies intersected range from granite gneiss to metasediments to iron formation to felsic volcanic rocks, volcanogenic sediments and granitoid rocks. Several of these lithologies show the advanced skarn - type alteration associated with many prospects lying within the retained area. Stratigraphic correlation is made between the Stuart Shelf rock units and the Eyre Peninsula area.

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About this record

Record No mesac12406
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Mineral Company Report - Mineral Exploration
Contributor Todd, Alexander and Co. Pty Ltd
Sponsor Western Mining Corp. Ltd
Tenement
Tenement Holder Western Mining Corp. Ltd;BP Australia Ltd;BP Petroleum Development Ltd
Operator Western Mining Corp. Ltd
Geological Province
Mine Name Olympic Dam deposit;Arcoona (syn. Oak Dam) anomaly;Arcoona South (syn. Canegrass) anomaly;Bills Lookout North anomaly;Coorlay Ridge anomaly;Cocky Swamp anomaly;Dromedary Dam anomaly;Ferguson Hill anomaly;Heaton Hill anomaly;Hunter Hill anomaly;Horse Well anomaly;Murdie [Island] anomaly;Nolteneus Hill anomaly;Saddle Hill anomaly;Townsite anomaly;Whittata Hill anomaly;Winjabbie anomaly;West Well anomaly
Stratigraphy
Commodity
    Notes 
    Notes: The subject report describes mineral exploration work carried out by Western Mining Corp. (WMC) on the now relinquished portion of EL 1316 (including work done there after 1975 on a number of precursor ELs). EL 1316 (formerly EL 784) is...
    Notes: The subject report describes mineral exploration work carried out by Western Mining Corp. (WMC) on the now relinquished portion of EL 1316 (including work done there after 1975 on a number of precursor ELs). EL 1316 (formerly EL 784) is subject to the Olympic Dam and Stuart Shelf Indenture Agreement with the South Australian Government. The terms of the indenture required that WMC's 14,675 square km area of EL tenure be reduced to 3000 square km, no later than 30/6/1986.   British Petroleum (BP) was in joint venture with WMC on the project licences between July 1979 and June 1984. It had agreed to spend $15 million on exploration over three years to earn a 49% interest in the project (BP Australia 36.5% and BP Petroleum Development 12.5%).  An aeromagnetic survey, flown for WMC by Geosearch in 1979, included 27,133 line km of magnetic profiles covering 10,500 sq km.  No hard copy maps were produced of the complementary radiometric data that was acquired.
Geographic Locality: Roxby Downs Station;Arcoona Plateau;Lake Torrens;Andamooka Island;Carrapateena Arm;1975 Olympic Gravity Survey;1979 Andamooka Aerial Magnetic Survey;1979 Andamooka Aerial Radioactivity Survey;1981 Olympic Extended Gravity Survey;1982 Andamoo Gravity Survey
Doc No: Env 06562
Drillhole: WMC DDH AD2;(20726);AD8;(20724);ASD1;(20722);ASD2;(20723);BLD4;(20833);CRD1;(18165);CSD1;(18159);DRD1;(20769);FHD1;(18197);HHD1;(18160);HHD2;(18164);HUD1;(20721);HUD2;(20725);HWD1;(20770);MRD1;(25375);NHD1;(25369);SHD1;(20828);TWN1;(312948);TWN2;(18162);TWN3;(312949);WHD1;(25359);WJD1;(18093);WWD1;(25380)
Drillhole Unit No: 6335 00115;6335 00113;6335 00111;6335 00112;6337 00060;6236 00072;6236 00066;6336 00041;6238 00006;6236 00067;6236 00071;6335 00110;6335 00114;6336 00042;6436 00006;6435 00005;6337 00055;6237 00588;6236 00069;6236 00172;6434 00034;6235 00078;6436 00011

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    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac12406
    Citation Paterson, H.L.;Muir, P.M.;Uppill, R.K.;Hinde, J.S.;Arden, P.J. Andamooka, Stuart Creek, Arcoona, Lake Torrens, Todds Dam, Lake Arthur, Woodforde Hill and Murdie Island (the Stuart Shelf Project). Joint first partial surrender report at licences' expiry/renewal, for the period 2/5/1975 to 16/6/1986. Mineral Company Report - Mineral Exploration
    https://pid.sarig.sa.gov.au/document/mesac12406

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[136.5,-32],[138,-32],[138,-31],[136.5,-31],[136.5,-32]]]}
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