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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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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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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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RB 76/00064 Report of geology, MURLOOCOPPIE 1:250 000.
There is no abstract created for this record-
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Published: 01 Jan 1976
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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 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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Ely Hill, Ant Hill, Mabel Creek and Mount Willoughby (Coober Pedy North Opal Project). Second partial surrender report for the period 10/1/97 to 2/11/2001.
Exploration for large-scale opal deposits over an area north and north-west from Coober Pedy included literature research, air photo interpretation, digital terrain modelling, and field reconnaissance. No unrecorded previous opal workings were...-
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Mabel Creek. Partial surrender report for the period 3/12/1999 to 2/12/2000.
Aerial photointerpretation, digital terrain model interpretation, a review of previous drilling data, and field reconnaissance of target rock unit outcrops were carried out 55 km north-west of Coober Pedy, adjacent to the western margin of the Coober...-
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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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HandBk 005 - Opal: South Australia's Gemstone. Barnes L.C. et al. (1992 revised edition)
South Australia's famous desert opalfields supply about 80% of the world output of precious opal, with current production coming almost entirely from the major fields at Andamooka, Coober Pedy and Mintabie, each of which is expected to increase output...-
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Allandale. First annual report to licence renewal, for the period 5/12/1994 to 31/5/1995.
Following recognition of the likely young age of the sources of the Abminga area magnetic anomalies, and the discovery of a number of diamond indicator minerals in sediments to the west of the Peake and Denison Ranges, the Allandale joint venture...-
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White Hill. Combined first annual/final report to licence full surrender, for the period 19/7/2002 to 9/12/2004.
Reconnaissance geological mapping of existing, previously quite productive opal workings in the White Hill area of the Stuart Range 'Breakaway' country, 100 km south-east of Coober Pedy, was followed by exploratory and infill narrow-hole auger deep...-
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Mount Woods. Combined first progress/final report at licence full surrender, for the period 6/9/1979 to 5/12/1979.
Following an evaluation of existing subsurface data, 9 vertical percussion holes totalling 670 m were drilled to test discrete gravity anomalies in the Mount Woods area, in a search for Olympic Dam type mineralisation. The holes encountered...-
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ExpNotes COOBER PEDY: Explanatory Notes COOBER PEDY
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ExpNotes ABMINGA: Explanatory Notes ABMINGA
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