Indicated 30 880 tonnes of tailings containing 1.72 g/t gold and 171 ppm copper remain. 80% of gold is extractable, but cyanidation or mercury amalgamation not allowed, due to water catchment area.

Summarises information gathered during mapping since 1981, particularly work by Utah Development Company. Covers fault - bounded structural complexes in the Callanna Group and sections measured through upper Burra Group, overlying glacial beds and...

Excursions are on Archaean - Middle Proterozoic geology of Gawler Craton, Precambrian geology of the Adelaide Geosyncline and Cambrian of the Flinders Ranges.

Gold mineralization in a deep lead was appraised. Alluvial gold occurs in a 1 metre thick basal bed. Over 60 samples collected from exploratory bulldozer cuts, main open cut and drill cuttings from water bore indicate grade of 0.073 g/t Au, although...

Investigations consisted of: 1) economic appraisal, mapping and sampling of mineralised structures within mineral leases; 2) regional investigation to east of Mount Grainger mine (report in RB 84/31) - includes details of exploration by Abignano Ltd....

Reserves of 2500 tonnes (indicated) and 75 000 tonnes (inferred) is largely from no..2 Lode. Hand sorting is necessary to produce industrial grade.

The diapir forms the core of large domal structure and contains large rafts of Sturtian sediments and Willouran dolerite in brecciated matrix. Surrounding country rock, with steep overall dip away from the diapir, comprises Sturtian shale, siltstone,...

Alluvial gold was discovered at Teetulpa in 1886 by Thomas Brady and Thomas Smith. Reef mining soon commenced, but the reefs were narrow and low grade and only worked on very small scale. Teetulpa Goldfield is predominantly alluvial, from erosion of...

About 1,500 samples were collected during a stream sediment sampling survey on the Riverton and Eudunda 1:63 360 geological sheets and analysed for Cu, Pb, Zn, Au, W, Mo, Nb, Co and Mn. Rolling means, residual values, correlation coefficients and mean...

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At Oraparinna, in the Flinders Ranges, barite has formed in fracture zones cross-cutting an Elatina Formation siltstone, within the Umberatana Group of Marinoan age. The occurrences are in a Class B Environmental Area as defined in the Flinders...

129 samples indicate that 4 deformation phases are present within this dominantly gneissic terrain: D1, D2, D3, and D5.

Petrology of 174 rocks indicate that 5 deformation phases (D1 - D5) are present within this dominantly schistose domain. Describes many samples which contain gneissosity, schistosity or crenulation.

1389 samples were collected. Pronounced copper zinc anomaly occurs immediately north of Mount Rufus area and lesser copper, lead and zinc anomalies continue along strike to the north. Anomalies occur in Sturt Tillite and Tapley Hill Formation mostly...

In southern South Australia, the meridional Torrens Hinge Zone, at approximately longitude 138º, separates the cratonic Stuart Shelf with its undeformed, relatively thin sedimentary cover in the west, from the folded Adelaide Geosyncline to the east....

Since 1962, recorded production from Universal Milling's barite deposit, part of Linke's lode, has totalled 28,542 tonnes. The deposit is in a Class B Environmental Area within the Flinders Ranges National Park. The steep barite lode has formed in a...

Since 1962, recorded production from Steetley's barite deposit, which forms part of Linke's lode, has totalled 6,237 tonnes. The deposit is in a Class B Environmental Area within the Flinders Ranges National Park. The steep barite lode has formed in...

Shallow seismic refraction traverses were carried out over six proposed sites for stream gauging near Hawker in South Australia. The results have determined bedrock topography and the depth to the water table at each site. The subsurface was clearly...

The Flinders and Mount Lofty Ranges of South Australia contain well exposed late Proterozoic and early to middle Cambrian dominantly sedimentary rocks, deposited in the Adelaide Geosyncline and deformed during the Cambro-Ordovician Delamerian Orogeny;...

Investigation of the Upalinna Diapir, located 20 km east of Wilpena Pound in the Adelaide Geosyncline, has identified a number of structural and sedimentary features normally associated with evaporite diapirs. The Upalinna Diapir is a small,...