In a search for East Alligator River - type metamorphic uranium deposits, a review of previous geophysical data plus the conduct of ground and airborne radiometric surveys disclosed a number of anomalies in an area on central Eyre Peninsula extending...

Detailed mapping at 1:3600 scale of a small study area near the centre of the licence, and located about 10 miles north-west of Radium Hill, indicates that most mineralisation is concentrated in the post-Proterozoic sequence, and appears largely to be...

As part of continuing exploration for possible economic buried stratiform / hydrothermal copper mineralisation in the Yudnamutana Mining Field, the target lower Callanna Group strata were geologically mapped, petrologically studied and geochemically...

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...

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...

Exploration for Broken Hill or Aggeneys type Proterozoic stratiform base metal massive sulphides within the Hutchison Group in the Mount Shannan area, north of Cleve, has included the acquisition, processing and interpretation of airborne magnetic,...

The recently completed drilling of 189 open rotary holes (total penetration 22,427 m), plus the redrilling and geophysical re-logging by joint venturer Minad-Teton of 19 previously completed Carpentaria Exploration Co. uranium exploration holes (for a...

A representative selection of rock types obtained in the cores of the DDH1 and DDH2 iron ore exploration holes was made with a view to studying the mineralogy, the lithology and any microstructures of interest present in the formations intersected. A...

Because of the reports of six separate sources of radioactivity, all within a distance of 2½ miles of the town of Port Lincoln, further geologic investigations were undertaken, prior to the appraisal of the area as a possible source of uranium. The...

One bore was drilled at Arno Bay to test the foundation conditions below a proposed silo site. The sequence intersected was an upper zone of sand, marl and limestone of Recent to Pleistocene age; the underlying amphibolite is of Archaean age.

A potential iron ore deposit has been investigated in the upper horizon of jaspilite beds of the Hutchison Group, where a drag fold has caused a thickening of the jaspilite beds. Surface samples average 42.2% acid soluble iron. The deposit has a...

Mapping of amphibolite outcrop and float indicates that there is in excess of 100,000 cu. Yards of material possibly suitable for screenings. Gravels and clays may obscure material which would substantially increase these reserves. Two diamond...

Supplementary gravimeter traverses have been run over the strong Bungalow aeromagnetic anomaly to further define it. Earlier in the year a percussion drilling programme was carried out over the same area. In the light of both sets of results it is...

21 specimens of volcanics and felsic gneisses are heterogeneous in both original lithology and the extent of metamorphic and metasomatic alteration. Strong granitic metasomatism may indicate concealed granitoid plutons. Continuation of andesitic...

Rocks examined in thin section are significant in indicating possible nature of concealed basement under the Eucla Basin, as well as in dating events in Archaean and Proterozoic.

Rocks are mainly from the Middle Proterozoic Gawler Range Volcanics. One may be from the Tarcoola Beds and one, not identified as it is too strongly altered by contact metamorphism, is of economic interest because of its highly mafic character.

Describes rocks from 3 areas formerly mapped as Flinders Group. Granites in each area are distinctively different, but metasediments are similar.

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Additional sampling of drill core has revealed the presence of a third rock type, a fine-grained amphibolite with a probable picrobasaltic composition, besides the metadolerite and albitite already logged. The ultramafic rock suggests an affinity with...

The Curnamona Province is exposed in the Willyama, Mt Painter and Mt Babbage Inliers, but much is obscured by younger sedimentary cover. It comprises a late Palaeoproterozoic metasedimentary and metavolcanic succession (Willyama Supergroup) with some...