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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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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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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 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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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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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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