All the talc deposits investigated occur in schistose dolomite in the Sturtian Series, near the upper or lower limits of a massive interglacial dolomite horizon. Reserves in sight are limited, and further underground exploration of the Nos 4 and 5...

Seven diamond drill holes totalling 923' and further geological investigation in section 5634, Hundred Yatala, County Adelaide, indicate that the only dolomite which is readily accessible for quarrying is that contained in 5 to 6 acres adjacent to the...

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White quartz-calcite-dolomite beds, equivalent in age to the Torrensian Series in the Adelaide system, occur in the proposed quarry area. Reserves in this area are estimated at 60-70.000 cu. Yards. Additional reserves exist outside the proposed quarry...

A dolomite prospect in Sec 9 Hd. Kooringa was investigated by one angled diamond drill hole 23m deep. The hole intersected highly weathered quartz-calcite-dolomite rocks of the Skillogalee Dolomite. Core recovery was only 16%, indicating that the site...

Sediments including quartzites dolomites, schists and phyllitic slates of the Torrensian series occur in the above sections. These sediments have been folded into a large anticline on the western limb of which large drags are developed. Pitch change...

Outcrops of tough, dense, white, tightly folded, recrystallised quartz-calcite dolomite have been outlined in the accompanying map of the above section. Indicated reserves are approximately 2 million cubic yards. Most of the outcropping rock appears...

Sediments in the above section belong to the Torrensian Series in the Adelaide System. They consist of thin dolomite beds interbedded with dolomitic slates, slatey dolomites and slates. Material occurring in section 3035 is thought to be similar to...

An investigation of local sources of limestone and dolomite suitable for use in a local steelworks has been initiated. Dolomites in the Middleback Range appear to be chemically suitable but the reserves are limited. Those situated in the Cowell...

A dolomite prospect in Sec 2276 Hd. Kooringa was investigated by one angled diamond drill hole 23m deep. The hole intersected quartz-calcite-dolomite rocks of the Skillogalee Dolomite. Core recovery was 80%. Most core appeared to be suitable for use...

Road metal deposits consisting of quartzites, dolomites, river conglomerate and slightly weathered laminated slates have been located in the above Hundreds. Reserves from these areas are expected to meet the council's requirements for some years.

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Cowell jade province contains 100 outcrops. The nephrite jade is associated with isoclinally folded dolomitic marble and calc silicate horizon in the upper Gneiss Complex of the Early Proterozoic Cleve Metamorphics. Discusses mining methods and quality.

Two deposits comprising gently dipping dolomitic sediments of the Skillogalee Dolomite were located during reconnaissance for construction materials for the Crystal Brook bypass. The southern deposit, 4 km northeast of Crystal Brook, was subsequently...

Aggregate for sealing the Stuart Highway will be required to be sourced from three main areas (localities a-c below) in addition to the existing quarry at Woocalla. Within these areas eleven potential sites have been nominated, from which three or...

Marla 1A and 1B reached 215.30 metres and 379.40 metres respectively, penetrating aeolian sands overlying the Bulldog Shale, Cadna-owie Formation an d Observatory Hill Beds. In contrast to Byilkaoora 1, oil shows and calcite pseudomorphs after...

Total output from 1940 - 1979 is 180 000 tonnes. The deposits are in folded Marinoan shale and siltstone of the Wilpena Group, within a cone shaped graben, structurally controlled by the Oraparinna Diapir. All lodes are within Brachina Formation,...

Includes a discussion about probable processes of mobilisation and recrystallisation of the dolomitic sediments, and describes the evidence found for the presence of a pyroclastic component in many of the non-carbonate sedimentary rock samples.

Thirty five quarries and pits produced 99% of the 5.6 million tonnes of construction materials produced in Metropolitan Adelaide in 1981.A systematic review of these operations provides a concise summary of major extractive industry in Adelaide, and...