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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 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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RB 84/00047 Origin and formation of matrix opal from Andamooka, South Australia.
Two specimens were probably formed by partial dissolution of Andamooka Limestone erratics within Cretaceous marine sandy clay, followed by replacement of the remaining carbonate rock by fine grained silica together with growth and deposition of silica...-
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Published: 01 Jul 1984
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RB 91/00084 Mineral occurrences of the KINGOONYA 1:250 000 map sheet area.
There is no abstract created for this record-
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Published: 01 Sep 1991
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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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Ouldburra Hill. First annual and final report for the period 25/6/2002 to 24/6/2003.
A small area of opal workings examined near Ouldburra Hill, 35 km south-east of Marla, was thought to indicate local potential for finding and developing larger scale deposits. Research and review of available historic data showed that the area holds...-
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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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RI 051 Andamooka Opal Fields The Geology of the Precious Stones Field and The Results of the Subsidised Mining Program
Since discovery of the opal field in 1930, Andamooka, 640 km by road north of Adelaide, has been a major world producer of precious opal. All workable opal at Andamooka has been found in the Marree Formation, a sequence of marine sediments of...-
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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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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 2003/00021 Musgrave Province - Geological summary and exploration history.
The Musgrave Province is largely incorporated within the Anangu Pitjantjatjara Lands and includes cratonic crystalline middle Proterozoic basement rocks of the Musgrave Province proper, as well as mantling younger sedimentary rock successions...-
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Published: 01 Nov 2003
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RB 2008/00012 Coober Pedy Opal Exploration Drilling Program 2005.
Two South Australian Government grants totalling $100 000 have been used by the Coober Pedy Miners Association Inc. to fund the use of an auger drilling rig on a drilling programme designed to explore for opal at selected locations away from the known...-
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Published: 01 Oct 2008
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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
