Geophysical surveys made in the Mount Coffin diapir area show the presence of anomalous zones indicative of sulphide mineralisation. The more intensive anomalies are, however, believed to be due to pyritic shales. Geochemical anomalies within the...

Further Investigation of the deposit by diamond drilling and laboratory testing of samples is described. A reinterpreted structural setting was confirmed by the drilling programme. Reserves are less than those previously stated, and abrasion values of...

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A programme of stratigraphic section measurement is envisaged in order to facilitate rock correlation and help outline the pattern of sedimentation in the Adelaide Geosyncline. In many areas measurement may be made on air photo enlargement, as has...

An essentially unmetamorphosed sequence of Upper Proterozoic Adelaide System rocks has been folded into a parallel series of north and north-east trending folds on the ORROROO mapsheet area. Rocks of the Adelaide System are up to 50,000 ft thick, and...

Unworked mine reveals copper of limited extent laterally occurring as minor narrow veins and impregnations of malachite and azurite in interbedded quartzite and pebbly siltstone. Copper carbonates may have formed from sparsely dispersed sulphides in...

Despite the palaeoecological emphasis of most recent stromatolite research outside the USSR, controversy still exists regarding the environmental restriction of these organosedimentary structures and in some cases, analogies with modern occurrences...

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Two hundred and seventy four soil samples were taken at Chalk Cliffs, 30 km (18 miles) east of Burra where quartz veins and siltstones of the Umberatana group crop out through a thin veneer of alluvium.

Oxidized copper minerals and molybdenite occur in quartz veins cutting sericitized granodiorite 2 miles (3km) east of Bendigo Homestead. Coincident copper soil and I.P. anomalies were tested by drilling. A zone of probable secondary copper,...

The COPLEY 1:250 000 map area includes the northern Flinders Ranges and the southern part of the Willouran Ranges. It is bounded to the west by the Lake Torrens Sunkland and, to the east, by the Lake Frome Plains. A thick sequence of older Precambrian...

Brief geological information is given for points to be visited over eight days as illustration of the Adelaide System in South Australia, with an emphasis on Adelaidean glacigene rocks. The Callanna Beds are seen in the Arkaroola region, the Aldgate...

Stromatolites afford a means of stratigraphic subdivision and correlation in Precambrian sequences which, contain few or no other fossils. Detailed field and laboratory studies are necessary in order to classify stromatolites. Determination of the...

Adelaidean and younger rocks of the Yunta, Winnininnie, Oakvale, Mutooroo, Ballara, Wadnaminga, Olary and Manunda one mile areas are summarised.

Up to 30,000 feet of strata referred to the Adelaide System outcrop over the ORROROO 1:250,000 mapsheet area in the upper Mid-North of the State. The majority of the area has been geologically mapped, and only some localities in the south-west require...

Reconnaissance mapping has located twelve deposits of rock suitable for bituminous surface treatment, screenings. Probable reserves, suitability of each site for quarrying and exploration necessary to prove the deposits are described.

The Carrieton 1:63, 360 map area lies about 200 miles north of Adelaide, South Australia. It contains folded rocks of the Burra, Umberatana and Wilpena Groups of the Adelaide System, of Upper Precambrian age; total thickness of these rocks exceeds...

To aid in the correlation of deep refractors in the Frome Embayment, a series of eight seismic refraction velocities were determined on the Proterozoic and Palaeozoic outcropping sections in the Blinman-Wirrealpa area of the Flinders Ranges. The...

The site of a proposed silo at Spalding was investigated by two cable tool holes 13m and 15m deep. The drilling intersected Pleistocene clays of the Pooraka Formation and Tertiary gravels to about 12.5m depth overlying steeply dipping and highly...

Rocks belonging to the upper part of the Adelaide System and the overlying Cambrian, outcrop in the eastern part of the Beltana area in the Nuccaleena Dome, and form the basement underlying the more recent sediments to the west. In the central and...