An absolute age of 677 Ma +/- 12 Ma was determined from analyses of six selected zircon grains separated from the subject volcanic rock sample, but the result is strongly affected by the need to impose large corrections to the data to compensate for...

The bulk of the late Archaean volcanic/volcaniclastic rocks from the Gawler Craton range in age from c. 2535 to 2510 Ma (Fanning, Reid and Teale 2007). However, these units were preceded by an older set of volcanics, the c. 2558 calcalkaline volcanics...

The north-south trending Benagerie Ridge, lying within the South Australian portion of the Curnamona Province 120-160 km to the west-northwest of Broken Hill, contains a number of magnetic complexes, some of which can be interpreted as domal...

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Gunsight prospect was discovered in the late 1960s during the follow-up of anomalous copper detected by a stream sediment survey. In 1972-73 Dampier Mining Pty Ltd drilled eleven percussion holes (totalling 537 m) and eleven diamond holes (1764 m)...

Under a joint venture agreement made between North Flinders Mines and Dampier Mining Co. (a BHP Exploration subsidiary), operative over the 7 square mile SML 705 between 14/9/1973 and 14/3/1974, at least 3500 feet of additional appraisal diamond...

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...

In a continuation of diamond and base metal exploration of newly discovered carbonatite / kimberlite intrusive bodies in an area located immediately north of Orroroo, these bodies were examined petrographically and analysed to compare their...

Marathon Petroleum's exploration investigations of EL 871 during 1982 were aimed at a detailed follow-up of prospective horizons and geochemical targets located in 1981. Rock chip assaying of selected lithologies, in particular quartz-garnet/gahnite...

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...

Outcropping Wywyana Formation in the Mount McDonnell Valley, which had been shown by past work to be highly anomalous in copper, with attendant gold enrichment, was targetted by 50 m by 20 m grid-based geological, geochemical and ground geophysical...

Appraisal of a newly discovered large deposit of kaolin, found in the near surface regolith to Archaean basement on two farms situated 7 km south of Mount Hope on southern Eyre Peninsula, has consisted of further air/rotary drilling (35 holes, total...

As a part of continuing exploration for possible economic buried epithermal / hydrothermal / metasomatic and skarn-related base metal and gold deposits undertaken within an area of shallow Lower Proterozoic basement located approximately 30 miles west...

This report reviews exploration work done from 1965 through 1993 by North Flinders Mines and four joint venturers on the Northern Flinders Ranges Gunsight Project. The enormous number of reports and interpretive maps generated are listed as...

Detailed follow-up to earlier regional stream sediment sampling, which had disclosed several robust kimberlitic garnet indicator anomalies in relatively featureless terrain, was successful in discovering three outcropping thin kimberlite sills in the...

A 900 line km detailed aeromagnetic survey was carried out over the northern extremity of Spencer Gulf, in a search for possible Olympic Dam style mineralisation associated with a significant and complex magnetic high anomaly that is located almost...

Reconnaissance and detailed bulk loam sampling undertaken to look for diamonds or kimberlite indicator minerals in the vicinity of the Pualco Anticline, plus spectrographic analyses of the derived heavy mineral concentrates for gold and base metals...

As part of a regional search for economic small-scale deposits of rare earth metals in the Mount Painter district, geochemical prospecting revealed several atypically high background niobium values, in stream sediments derived from watercourses known...

Surface copper carbonate mineralization occurring along a presumed shear zone was initially discovered some 4 miles southwest of the Parabarana Cu prospect by North Flinders Mines in late 1971, during a programme of detailed geochemical stream...