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Hanns Hill. Progress reports for the period 19/1/81 to 6/12/82.
Follow up to stream sediment sampling near Oodnadatta in the Mount Dutton area suggests that anomalous nickel, chromium and cobalt values are associated with ironstone, and anomalous niobium with geodes. No kimberlites were discovered.-
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Published: 01 Jan 1982
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Mount Robinson. Progress reports for the period 19/1/81 to 6/12/82.
Stream sediment sampling southeast of Oodnadatta in the Mount Kingston area revealed no significant anomalies. Rare pyrope was identified in some samples, but no kimberlite were discovered.-
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Published: 01 Jan 1982
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Lady Buxton. Progress reports to licence expiry/renewal for the period 22/7/1968 to 21/7/1970.
As part of a continuing regional search for economic deposits of uranium and other radioactive minerals within alluvial fan sediments deposited adjacent to and east of the Mount Painter Block basement outcrops, 32 rotary holes (total 16,218 feet) were...-
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Published: 21 Jul 1970
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Lake Callabonna. Progress and final reports for the period 11/6/1971 to 10/6/1972.
Ongoing exploration for economic sedimentary uranium deposits in the Lake Callabonna region involved further reconnaissance rotary mud drilling and well geophysical logging (9 holes, total 3195 feet) to evaluate radiometric anomalies found in...-
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Mount Willoughby, Marla, Nicholson Hill, Hope, Manya, Emu, Moorefield, Lake Meramangye, Dingo Claypan and Alinya (Officer Basin). Progress, technical and partial relinquishment reports for the period 20/8/1980 to 19/8/1985.
TRONA EXPLORATION: Of the 9 rotary/diamond holes drilled, only the first, Meramangye 1, intersected a unit equivalent to the Observatory Hill Beds, which was the target horizon for trona. Drillholes Manya nos 2-6 and Marla 7 intersected Cambrian red...-
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Yarramba. Progress reports to licence expiry/renewal, for the period 13/5/1971 to 12/5/1972.
Continuing intensive exploration for economic sedimentary uranium deposits within buried Tertiary palaeochannel sediments in the Yarramba Homestead area, 50 km north-west of Cockburn, which had been invigorated by the recent discovery of strongly...-
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Frome Downs and Curnamona. Respective progress reports, annual reports and JV partner's final report to licences' joint expiry/renewal, for the period 11/2/1971 to 12/2/1973.
77 rotary / diamond holes drilled by Pacminex (total 9385 m, including 196 m cored) plus another 53 holes drilled within SML 544 by joint venturer Esso (total 7029 m) indicate that a highly prospective radioactive mineralised zone occurs within...-
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Mulyungarie. Progress reports to licence expiry/renewal for the period 13/5/1972 to 12/5/1973.
Ongoing exploration for possible economic sandstone-type uranium deposits formed in Tertiary palaeochannels in the Yarramba area, 50 km north-west of Cockburn, has included further open hole rotary drilling and downhole geophysical logging (176 holes...-
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Millers Creek Homestead. Progress reports and final report to licence expiry/full surrender, for the period 13/3/1980 to 28/3/1986.
Following a review of existing regional geophysical and geological data for the north-western Stuart Shelf, grid-based gravity and ground magnetic surveys were run to further outline two broad gravity highs associated with discrete magnetic anomalies,...-
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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 44/00108 Letter to the Senior Warden re. ways of resolving issues with legal compliance of precious stones claim working practices currently being followed on the Andamooka Opalfield.
There is no abstract created for this record-
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Published: 27 Jun 1957
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RB 80/00026 Opal in South Australia.
Enlarged written version of a talk on the geology of opal, its occurrence and mining methods prepared for public presentation.-
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Published: 01 May 1980
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RB 86/00070 Andamooka Opalfields results of the 1984 prospecting scheme.
Andamooka Opal Fields, have been major world producer of precious opal since 1933. Opal has formed within a weathered, bleached profile at the interface of white, sandy claystone (Kopi) and underlying, grey brown montmorillonitic clay (Mud) near the...-
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Published: 01 Sep 1986
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RB 86/00069 Precious opal and the weathered profile at Coober Pedy.
The Coober Pedy Precious Stones Field is the largest producer of precious opal in the world. The opal is the product of weathering processes and is localised within the weathered profile. It occurs in early Cretaceous marine claystone of the Bulldog...-
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Published: 01 Nov 1986
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RB 83/00069 Identification of a mineral from Hamilton Hill, Curdimurka area.
Prismatic pyramidal crystals from a vein in the Cretaceous Bulldog Shale are identified as possible celestite.-
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Published: 01 Aug 1983
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RB 86/00058 (Revised edition, 2016) Excursion guide. Silcrete field workshop, South Australia, August 19-30, 1985.
Guide covers an area extending from the western margin of Lake Torrens to Coober Pedy, and down to Ceduna. Characteristics of the silcretes in the Tertiary sequences, field relationships, and other criteria which might be used to interpret processes...-
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Published: 01 Jun 1916
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RB 80/00038 Vesuvius opal diggings.
Small quantities were mined from 1977 to 1978. The opal infills joints in leached and weathered Cretaceous shale. Considerable potential exists for further small finds of opal.-
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Published: 01 May 1980
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RB 81/00017 Sarda Bluff, Ouldburra Hill and England Hill opal diggings.
These diggings have produced precious opal within weathered Cretaceous Marree Subgroup, infilling fractures in claystone, capped by ?Miocene silcrete. At Sarda Bluff and Ouldburra Hill opal with colour also cements coarse sandstone, some of which may...-
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Published: 01 Jan 1980
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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
