Burra, discovered in 1845, was Australia's first great mine, and at the time was one of the largest and richest in the world, producing nearly 5% of the total world output of copper. Today the mine is still famous for the beautiful specimens of...

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The extremely thick succession provides one of the most complete sedimentary records for the Late Proterozoic. The term geosyncline is used in a non-genetic sense for the basin in which deposition occurred during the Adelaidean and Cambrian. Only the...

The geological history of the present-day observable rocks that outcrop in the Clare Valley district of South Australia is described in easily understandable language by a SA Government geological mapping expert. His interpretative map depicting the...

Eight stratigraphic sections were measured on enlargements of air photos between Spalding and Cradock, up to 200 miles north or northeast of Adelaide. The rocks are mainly from the Umberatana, Burra and River Wakefield Groups of the Adelaide System....

2 main areas are outlined as likely sources, high quality marble to the N of the Penrice quarries and quartzite from many localities NW and close to Tanunda, but of lower quality.

Burra Group argillaceous and arenaceous slates have been converted into white clay, and sandstone partly into quartzite. Seven diamond drill holes were put down through the clay and sandstone for a total of 540ft, the core recovery being 83 per cent....

Copper, iron and quartz mineralisation occur in near longitudinal vertical shears and faults in Burra Group rocks at the Montacute and Adelaide Copper Mines. The vein deposits average 1½ feet in width, and were probably formed during a Lower Paleozoic...

This investigation was a feasibility study, therefore environmental factors are dealt with in much more detail than would be necessary in a routine geochemical report. Apparently these factors has little significant effect on the results. Spot...

The Paratoo copper deposit occurs in a sequence of laminated siltstones dipping steeply towards the east and striking northerly. The main copper ore mineral exposed at the surface is malachite. Thin sections of mineralised rock showed that malachite...

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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...

A recently formed syndicate has extracted 2,000 tons of material containing 3.8 per cent copper, 12,000 tons of talcose clay suitable for brickmaking and a small amount of gold from a 50 foot deep quarry in part of the old Gomersal goldfield....

City Bricks Ltd. is quarrying clay shale for brickmaking at Glen Osmond. At present the shale is being won from a lower unit of a three unit sequence of two shales separated by quartzite. Geological mapping and a knowledge of topography enable an...

White, kaolinitic clay suitable as paper filler occurs in bleached shale. Drilling programme of 97 holes (7 000 feet) aims to define the body and prove reserves. Washing is necessary.

Tributary of the Onkaparinga River is to be dammed by an earth - and - rock embankment. Includes data for design of stable batters, prediction of excavation conditions, foundation conditions for dam embankment, spillway, outlet conduit and assessment...

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...

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The two mineral claims no's. 7310 and 7311 lie 6 miles miles (9.6 km) northeast of Robertstown in the Hundred of Bright, Section 1G, some 86 miles (138 km) by road northeast of Adelaide (Fig. 1). The investigation was undertaken at the request of the...