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Annual report on exploration activities, Mount Neill and Mount Fitton areas, EL 871, 1982.
A reassessment of Marathon Petroleum's 1979 regional stream sediment sampling programme led to the decision to resample a number of areas within EL 871. The Mt Neill and Mt Fitton areas were chosen, as a result of possible similarities with the...-
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Report on the Shamrock uranium prospect.
Uranium mineralisation was first discovered at the old Shamrock Copper Mine during a systematic search of old mine dumps by the South Australian Department of Mines in 1955. Follow-up investigations located a small high-grade uranium lode (Valley...-
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Watson Siding (South). Progress and final reports to licence surrender for the period 11/12/81 to 10/10/82.
In a search for possible concealed Olympic Dam type base metal deposits within an area located 80 km north-west of Yalata, the licensee investigated several previously identified contiguous magnetic and gravity anomalies by performing ground magnetic...-
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Published: 16 Dec 1982
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Blue Gum Hill, Kangaroo Island. Progress and final reports to licence surrender for the period 19/4/1973 to 29/1/1974.
In ongoing exploration of the base metal potential of a small licence area located 34 km west of Kingscote, 5 inclined shallow diamond drillholes totalling 399 m were put down on significant anomalies located by IP surveys and/or geochemical soil...-
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Published: 29 Jan 1974
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Emu Hill. Progress and annual reports plus final report to licence expiry/full surrender, for the period 22/4/1991 to 21/4/1996.
Diamond exploration undertaken north-west of Moolawatana included the acquisition of airborne magnetic / radiometric and ground magnetic surveys, plus soil, stream sediment, gravel, loam and rock chip sampling, and aircore/diamond drilling (25 holes,...-
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RB 55/00006;Amdel 00126 Accessory minerals of South Australian granites.
The purpose of the work described was to compare and contrast the petrography, accessory minerals, and absolute ages of 25 granitic and allied rock samples collected from widely scattered localities in South Australia. The processes that are...-
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Published: 01 Aug 1961
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RB 59/00056 Diamond drilling at the Pinnacles mine.
There is no abstract created for this record-
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Published: 01 Jan 1967
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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 45/00118 Final report on iron ore prospecting, Corunna area, Iron Knob district.
In an area of limited basement outcrop located between 2 and 5 miles north-northwest of Iron Knob township, the Department's surface traverse channel sampling (969'), percussion boring (643’) and diamond drilling (1270’) tested a low grade...-
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Published: 04 Dec 1957
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RB 47/00086 Outline of the biostratigraphy of Andamooka Opalfield.
Four faunal assemblages are present in the Lower Cretaceous shales and sandstones at Andamooka. Abundant Aptian foraminifera occur in the "toe dirt" immediately below the opal horizon. A notable discovery from recent sampling is that of late...-
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Published: 01 Jan 1961
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RB 47/00123 Andamooka Opalfield.
Sediments tentatively assigned to the Marinoan Series (late pre Cambrian age) unconformably underlie Mesozoic and Cainozoic sediments in the area investigated. Opal is known to occur at three horizons and may occur in a fourth within the Mesozoic...-
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Published: 01 Jan 1960
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RB 77/00010 Foraminiferal biostratigraphy of the Andamooka Opalfields.
There is no abstract created for this record-
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Published: 01 Jan 1977
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RB 83/00078 Petrography of two specimens of matrix opal from Andamooka.
Limestone of (?)Cambrian age and sedimentary breccia of (?)Mesozoic age are suggested for the origin of the opalised rock.-
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Published: 01 Oct 1983
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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 77/00051;Env 03054 Porphyry style copper/molybdenum mineralization at Anabama Hill and the Cronje Dam copper prospect.
For a project to determine the base metal potential of known copper-mineralised igneous rocks which outcrop in an area located approximately 59 km south-west of Olary, the South Australian Government has completed detailed mapping, geochemical...-
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Published: 17 May 1977
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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 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 83/00007 Coober Pedy Opalfields - Results of the subsidised exploration programme, 1981.
221 shafts were drilled. Precious opal or potch was found in 11 shafts and good sandstone prospective for opal in 34 shafts. A new field, Southern Cross, was established subsequent to the discovery of potch in subsidised shaft 85.-
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Published: 01 Mar 1983
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RB 79/00006 Opal at the Stuart Creek, Charlie Swamp and Yarrawurta Cliff diggings. Report no. 12 on geological investigations and Calweld drilling of the Stuart Creek Precious Stones Field.
Small quantities of precious opal have been mined from sediments of the Early Cretaceous Marree Formation at Stuart Creek, 50 km north of Andamooka. These sediments appear to have been unaffected by the Early Tertiary deep weathering and bleaching...-
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Published: 01 Jan 1979
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RB 76/00119 Silcrete sediments and stratigraphy.
There is no abstract created for this record-
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Published: 01 Jan 1976
