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....

Amethystine and clear crystalline quartz infills fractures and cavities in quartzite of the Belair Subgroup of Proterozoic age, near Fullerville in the Mid-North of South Australia. The quartz crystals range in colour from milky to clear, through...

Mapping near the Spalding Inlier and to the south indicates that a quartzitic sequence between the River Wakefield Group (now termed Subgroup) and Skillogalee Dolomite was wrongly identified as Rhynie Sandstone and should now be re-named. The term...

In a sampling programme carried out over the Sturtian Merinjina Tillite and basal Tapley Hill Formation strata on parts of the COPLEY 1:250 000 mapsheet area, 684 soil samples and 71 rock samples were collected at 25 m and 12.5 m intervals along 24...

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;...

The oldest rocks on WARRINA outcrop in the Peake and Denison Inliers, which comprise the Davenport and Denison Ranges and small inliers to the east. Basement in this area consists of Palaeoproterozoic metamorphic rocks which were intruded by...

Rare specs of gold were found at an old ochre mine next to the township of Oodla Wirra in remnant Tertiary and Recent alluvial deposits. Gold has also been recovered from a haematite vein in Adelaidean Umberatana Group rocks. Mining and sampling has...

A fundamental question remains to be answered in the Clare Valley. How much water can be safely extracted without causing depletion of the groundwater resources? This question is being addressed by a major investigation into the groundwater...

Phase Two of a drilling program at Clare, South Australia was undertaken in June, 1997. A total of 6 bores were drilled, 4 of these at existing locations established during Phase One drilling in January, 1996, and a further 2 at Watervale Oval as...

The Torrens Rural Catchment can be divided into three zones where groundwater extraction from fractured rock aquifers is significant - the Fourth and Sixth Creek catchments, and the Birdwood - Gumeracha area. The Fourth Creek Catchment, which is...

Contains summarised geological logs of 93 diamond drillholes and 4 percussion drillholes that were drilled by SADM/SADME and by exploration companies, including the logs of 2 early water bores drilled near Port Pirie. The holes penetrated Cambrian,...

Groundwater usage has increased substantially because of a change from dry-grown grape varieties to those needing irrigation. Regional dewatering caused by excessive extraction is unlikely because of the nature of the aquifers, but local usage...

Holdfasts were installed at Morialta Conservation Park to improve safety for rock climbers. Twenty three rockbolts were grouted into holes drilled into rocks of the Stonyfell Quartzite Formation. Two rockbolts were grouted into cast concrete blocks...

5 profiles were recorded to define the extent of a subsurface alluvial channel. The western limit is controlled by outcropping Adelaidean bedrock, while to the east interpreted depths of 30-40 metres to bedrock were indicated. To date the eastern...

Pre-Mesozoic rocks are best exposed in the Willouran Ranges SW of Marree, but inliers occur as far west as Stuart Creek. These approximate the junction of the Stuart Shelf (to the west) with the Torrens Hinge Zone, which extends east to the Norwest...

This report summarizes information on 10 South Australian mineral deposits with individual aggregate gold resources and/or historic production of 1 tonne or more. By far the largest is the Olympic Dam Cu-U-Au-Ag deposit, with a measured and indicated...

12 sections were measured through the Skillogalee Dolomite, and partly into adjacent Burra Group and Umberatana Group. Skillogalee Dolomite thickness varies from 827 metres in the East Willouran Ranges to 3921 metres near Mt Norwest. Very rapid...

Twenty-three vertical open RC drillholes with a total penetration of 2663 m were drilled by MESA during February and March 1995 along four W-E traverses in the Stonefield area near Truro, to determine bedrock geology and geochemistry below sedimentary...

The Torrens Hinge Zone Project aimed to demonstrate the existence of prospective metalliferous rocks beneath the Cainozoic cover, to stimulate exploration and to investigate the transition between the Adelaidean sequences of the well-exposed Adelaide...

As part of the SAEI (South Australian Exploration Initiative), thirty reverse circulation drill holes totalling 1123 m (av 37.4 m) were drilled on the Terowie 1:50 000 mapsheet area to determine bedrock geology and geochemistry below Quaternary cover,...