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RB 87/00031 Coober Pedy Opalfields. Geology of the precious stones field and results of the subsidised exploration program, 1981 (Volume 1).
Production 1978 - 1985 has averaged $25 000 000 per year. Mining is now mainly by mechanized methods in underground workings, most of the older shallower fields having been worked out. All areas of deeply weathered Bulldog Shale, or Russo Beds...-
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Published: 01 Jun 1987
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Mabel Creek. Annual and final progress reports to licence expiry/full surrender for the period 3/12/1999 to 2/12/2003.
As part of an exploration project targeting possible large-scale opal occurrences hidden at depth beneath marine shale outcrops in the Stuart Range 'Breakaway' country, the subject licence was taken up to cover certain ground lying adjacent to the...-
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Published: 25 Jun 1903
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Mount Willoughby. Annual reports to licence expiry/full surrender for the period 11/1/2001 to 10/1/2005.
Exploration for opal, carried out in an area of the Stuart Range located approximately 130 km north-northwest of Coober Pedy, has included a compilation of geological and opal occurrence data, photogeological interpretation of aerial photographs,...-
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Ely Hill and Ant Hill. Combined and separate annual reports to licence expiry/full surrender for the period 10/1/1997 to 17/12/2004.
The subject adjacent licence areas, located approximately 55 km north-northeast of Coober Pedy, were the first tenements taken out for regional opal exploration under the provisions of the newly proclaimed South Australian Opal Mining Act 1997. The...-
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Published: 17 Dec 1904
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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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Arckaringa Basin, SA. 1984 diamond exploration report.
Evaluation of the diamond potential of the Arckaringa area, 50 km south-west of Oodnadatta, which is here considered to be a region both tectonically and geologically favourable for the past emplacement of kimberlitic intrusive bodies, has comprised...-
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Apatite fission track analysis of samples from the western Eromanga Basin and Eringa Trough, Australia.
16 rock samples from wells and outcrop in the western Eromanga Basin / Eringa Trough region were analysed for their apatite grain fission track properties to derive an interpretation of the geothermal history of the enclosing strata.-
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Apatite fission track analysis of samples from Eringa Trough and western Eromanga Basin, Australia.
17 rock samples from 5 wells in the western Eromanga Basin / Eringa Trough region were analysed for their apatite grain fission track properties to derive an interpretation of the geothermal history of the enclosing strata.-
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Thermal history reconstruction in Cooper-Eromanga Basin wells using apatite and zircon fission track analysis and vitrinite reflectance.
Results of a study aimed at providing a better thermal history framework for understanding the post-Palaeozoic thermal evolution of parts of the Cooper-Eromanga Basin, South Australia, based on apatite fission track analysis, zircon fission track...-
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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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Billa Kalina, Welcome Creek, Millers Creek, Margaret Creek and Francis Swamp (the Billa Kalina G2 Diamond Project). Data release made at remaining licences' joint partial surrender: joint annual reports for the period 25/2/2006 to 29/8/2012.
As part of continuing diamond exploration on the subject five licences, more of the first pass sampling program was completed by Flinders Diamonds in August 2006 via aircore drilling of 47 vertical holes for an aggregate 1852 m aimed at penetrating to...-
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Published: 10 May 1912
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Francis Swamp and Margaret Creek (part of the Billa Kalina G2 Diamond Project). Data release made upon the full surrender of subsequent licences: annual reports and combined annual reports to licences' joint renewal, 13/10/2000 to 12/10/2005.
Exploration for possible commercial diamond deposits has been carried out along a portion of the G2 gravity lineament located immediately south of William Creek and the southern Peake and Denison Ranges, looking for inferred diamondiferous kimberlite...-
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Published: 06 Jun 1907
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RB 2008/00013 High Resolution Resistivity Test Survey: Coober Pedy.
A new high-resolution resistivity measurement instrument, developed by ZZ Resistivity Imaging Pty Ltd, was tested within the Coober Pedy Precious Stones Field, located 900 km north-west of Adelaide, to determine its suitability for assisting in opal...-
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Published: 01 Oct 2008
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RB 2015/00005 Opal Exploration Program — Andamooka Opal Fields.
Opal at Andamooka is found in the Bulldog Shale, a stratigraphic unit comprising shallow marine-deposited sediments of Cretaceous age. The opal mostly has formed within a bleached sediment weathering profile developed at the contact of a sandy...-
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Published: 01 Apr 2015
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RB 2014/00005 WINTINNA, South Australia, [geological map] sheet SG53-14. South Australia. Geological Survey. 1:250 000 Series - Explanatory Notes.
The WINTINNA 1:250 000 mapsheet area lies between latitudes 27° to 28° South and longitudes 133°30’ to 135°00’ East. This ~16 400 square km area includes the Marla and Cadney Park settlements, and is crossed by the Stuart Highway and Adelaide to...-
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Published: 01 Mar 2015
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Ruby Hill. Progress and final reports to licence surrender for the period 1/12/1980 to 31/5/1982.
During a search for possible diamondiferous rocks within an area lying to the north of William Creek and abutting the south-eastern side of the Peake and Denison Ranges, stream sediment sampling and a low level, 5300 line km aeromagnetic / radiometric...-
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Published: 02 Jun 1982
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RB 2015/00007 Coober Pedy Precious Stones Field 40Ar/39Ar geochronology of alunite and opal formation.
Precious opal in South Australia occurs near the base of the weathered profile developed in Early Cretaceous host marine clastic sediments. It is associated with the supergene minerals alunite, kaolinite, gypsum and iron oxides, that are variously...-
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Published: 01 Apr 2015
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RB 2010/00003 High Resolution Resistivity Test Survey: Andamooka.
A new high-resolution resistivity measurement instrument, developed by ZZ Resistivity Imaging Pty Ltd, was tested within the Andamooka Precious Stones Field, located 640 km by road north of Adelaide, to determine its suitability for assisting in opal...-
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Published: 01 Feb 2010
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Ely Hill & Ant Hill. Joint first annual & final report for the period 10/1/1997 to 13/1/1998 (Ant Hill Project minerals search), plus joint first partial surrender report for the period 14/7/1997 to 8/12/1998 (Coober Pedy North Project opal exploration).
Two structurally controlled Cu-Au targets, plus a possible kimberlite pipe and a coal prospect, were interpreted in re-processed geophysical data derived from an area approximately 55 km north-northwest of Coober Pedy. The area was seen to contain...-
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Published: 09 Mar 1999
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Wingilpin Bluff. First annual / final report to licence surrender for the period 27/3/2003 to 16/12/2003.
Evaluations of 3.5 m resolution digital elevation models lately acquired over the Wingilpin Bluff area, located 75 km north-east of Kingoonya, have indicated that substantial Tertiary and Recent erosion has removed most of the potential opal-bearing...-
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