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RB 60/00082 Coober Pedy Opalfield.
Mapping of the Coober Pedy Opalfield has shown that opal occurrence, although erratic, is not entirely unpredictable. Several groups of workings are present in an area of about 150 square miles. The host rock is a distinctive pink and white...-
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Published: 30 Apr 1965
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RB 83/00007 Coober Pedy Opalfields - Results of the subsidised exploration programme, 1981.
221 shafts were drilled. Precious opal or potch was found in 11 shafts and good sandstone prospective for opal in 34 shafts. A new field, Southern Cross, was established subsequent to the discovery of potch in subsidised shaft 85.-
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Published: 01 Mar 1983
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RB 98/00021 Review of open file company exploration data from 1992 to mid-1997, Olary Domain, CURNAMONA 1:250 000 map sheet, South Australia.
This report comprises Open file company data, released since the previous MESA review (Yates and Randell, 1994) of the CURNAMONA 1:250 000 map sheet, includes exploration for base and precious metals (especially stratiform/stratabound Broken...-
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Published: 01 Jul 1997
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RB 96/00043 Report on a transient electromagnetic survey around Garford Palaeochannel, SA.
There are no known major groundwater resources in the Garford area, which borders the Barton and Ooldea Ranges dunefield and Great Victoria Desert southwest of Coober Pedy. The groundwater that is used by graziers for stock watering occurs in...-
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Published: 01 Sep 1996
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Naarack, Mabel Creek and Wintinna (part of the Arckaringa Basin Project). Respective final reports at licences' joint full surrender, for the period 26/3/2008 to 2/4/2010.
In a search for postulated Tertiary heavy mineral sands marine placer deposits that may have been formed outside of the presently known north-eastern extent of such age sedimentary basins (i.e. along a proto Eucla Basin coastline existing within the...-
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Data release - as updated : Edward Creek (part of the Edward Creek Joint Venture Project). Annual reports and final report to licence expiry/full surrender, for the period 23/9/2008 to 11/11/2018.
Reedy Lagoon Corp. (RLC) has continued to look for minerals other than diamond, operating as the manager of exploration work for base metals (mainly copper) and uranium that was undertaken by the Edward Creek Base Metal Joint Venture (“ECBMJV”) during...-
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Data release - as updated [made at SA Director of Mines’ discretion] : Ethiudna. Annual reports to licence expiry/renewal, for the period 22/2/2004 to 22/2/2015.
An area centred ~50 km north-west of Olary is continuing to be explored for possible buried economic Prominent Hill or Olympic Dam type iron oxide associated copper-gold (IOCG) breccia style mineralisation. The area is considered highly prospective...-
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Abminga Diamond Project. Data release made at licence renewal [and project cessation]: progress reports and annual reports for the period 25/10/1993 to 17/3/2004.
The Abminga Diamond Project, undertaken by Caldera Resources NL, was granted exploration project status, including permission for EL joint reporting, in July 1996. This event followed up to two years of work by other operators on a number of...-
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Coober Pedy. Annual reports to licence expiry/full surrender, for the period 1/11/2016 to 31/10/2019.
A large area situated on the north-eastern side of the Stuart Range, comprising three separate sub-blocks that taken together are centred ~20 km north of Coober Pedy township, has been explored for possible economic near-surface accumulations of the...-
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West Lake Blanche. Annual reports to licence expiry/full surrender, for the period 27/3/2014 to 26/3/2018.
A licence area covering the piedmont plain formed adjacent to a large salt lake (Lake Blanche) of the Cenozoic Lake Eyre Basin, and the underlying Mesozoic Eromanga Basin sediments situated to the north of the uranium-rich Mount Babbage Inlier, ~100...-
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Published: 29 Mar 1918
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Coober Pedy. First partial surrender report, for the period 1/11/2016 to 31/10/2018.
An area located immediately east and north-east of Coober Pedy is being explored for possible economic near-surface accumulations of the evaporite industrial mineral epsomite. Historic drilling and costeaning in this area performed by CRA Exploration...-
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Lake Gregory. Final report at licence full surrender, for the period 13/5/2016 to 9/3/2017.
A licence area covering a large salt lake (Lake Gregory) of the Cenozoic Lake Eyre Basin, and the underlying Mesozoic Eromanga Basin sediments situated to the north of the uranium-rich Mount Babbage and Mount Painter inliers, ~120 km north-east of...-
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[Petrographic] descriptions of [34 samples] of Cretaceous, Tertiary and Recent sediments from the area east of Lake Eyre, South Australia.
There is no abstract created for this record-
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Published: 11 Feb 1972
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Giddi Giddinna Creek. Progress reports and technical reports to licence expiry/lapse of tenure, for the period 16/6/1983 to 23/9/1987.
In early 1983, mineral prospector Peter Tayler discovered a near-surface secondary occurrence of magnesium and sodium sulphates in a creek-bank exposure of Mesozoic shales, deposited at the base of the Lower Cretaceous Bulldog Shale near the western...-
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Published: 23 Jun 1987
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Oolgelima Hill. First partial surrender report, for the period 15/7/1983 to 14/7/1984.
Investigation of a reported occurrence of magnesium and sodium sulphates in a black shale at the base of the Cretaceous Bulldog Shale, found previously about 50 km north-east of Coober Pedy near the western margin of the Eromanga Basin, was initially...-
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Published: 24 Aug 1984
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Coober Pedy. Investigation of alunite occurrence.
At the request of several interested parties from Coober Pedy, 17 channel and grab samples of alunite-bearing clays obtained from opal workings near the town were analysed for their alunite content and its purity. Recent inspections by the author of...-
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Data release - as updated [made at SA Director of Mines' discretion] : Kalkaroo (part of the Mundi Mundi Plains JV Project). Annual reports for the period 21/4/2010 to 1/6/2018.
During 2010-2011, the sixth year of the subject licence, as part of its continuing search for buried economic Tertiary sediment-hosted roll front style secondary uranium deposits, Marmota conducted the following work: • acquired a 58.6 line km moving...-
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Published: 17 Jul 1918
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Mount Hopeless, Paralana Creek and John Brown Well areas. First partial surrender report for the period 7/6/1978 to 6/6/1979.
As part of conducting a regional search for possible occurrences of Tertiary sediment-hosted, Wyoming roll-front type uranium mineralisation, the Paralana Plains joint venture partners were required to drop at least 25% of the area of their EL 402...-
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RI 056 Geology of the Coober Pedy Precious Stones Field Results of Investigations, 1981-86
The Coober Pedy Opal Fields, since their discovery in 1915, have been the largest producer of precious opal in the world, with the estimated value of production over the period 1978-86 averaging $25 million per year. Mining is now done mainly by...-
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ExpNotes WINTINNA: Explanatory Notes WINTINNA
A new generation, first edition WINTINNA 1:250 000 scale geological map and explanatory notes have been published. These documents represent the conclusion of the Geological Survey of South Australia's geological mapping program undertaken in the...-
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