Geology is summarised based on literature and recent geological mapping. The Adelaidean outcrops in the Willouran Ranges where it is folded, fractured and cut by partly diapiric crush zones. The oldest Adelaidean, Callanna Beds, occurs as blocks in...

Brief summary progress report.

Well was drilled to 555 metres as part of an assessment of water potential and stratigraphy of the area. The full thickness of the Jurassic aquifer was not penetrated. Salinity is 1 100 mg/L, but the water would require treatment for excessive sodium...

During May - September 1978, 66 shafts were sunk under subsidised mining programmes to encourage testing of new areas. The new fields of Stans Hill and Yarloo West were established subsequent to the discovery of opal in Shafts 17 and 49.

No age determined for trench sample as no fossils present.

The effects of pumping from the main aquifer for 20 years at 900 L/sec from hypothetical well 125 km north of Marree, have been simulated using the GABHYD computer program of the BMR. Results indicate that effects outside SA will be minimal and that...

Testing of 2 wells in Cadna-owie Formation has shown long term yields of 130 kl/day (WW89) and 180 kl/day (WW90). Risk of affecting nearby private well 6135 WW 38 while pumping at these rates could be minimised by operating WW90 preferentially with...

1 rock sample no.6043RS28 was dated from foraminifera as Upper Aptian. 1 sample from Onqueeduina 1 borehole was dated from mollusc fragments, sponge spicules and foraminifera as Albian.

This note records the discovery of previously unrecognised Early Cretaceous fossiliferous sediments unconformably overlying Palaeozoic rocks at the Mintabie opal field. Following renewed mining activity at Mintabie in 1977-78, the Mineral Resources...

Small quantities of precious opal have been mined 1977-79. Opal and potch occur as opaline-silica cement within Cretaceous sandstone lenses, and as thin seams and fracture infillings within Cretaceous claystone, clasts and vein infillings within...

Reconnaissance stream sediment sampling of the creeks on the western side of the Peake and Denison Ranges aimed to locate old reported alluvial gold occurrences and to test the creeks for significant distribution of gold eroding out of the Jurassic...

SADME Toodla 1 stratigraphic/exploration well was drilled near the south-western margin of the Eromanga Basin, at a site 18 km ENE of Mount Dutton, in the area between SADME reflection seismic survey shotpoints DK6 and DK7 located at the northern end...

Pump testing of existing supply well indicated high nitrate levels and limited supply life. 2 exploration wells were drilled. The first yielded greater than 800 m3/day with total dissolved salt level of 2737 mg/L. The second yielded water supply of...

Extensive field geological mapping, augmented by petrological and geochemical studies, reinterpretation of company drilling and water-bore logs and a nine-hole drilling programme has detailed the geology of the KINGOONYA area. The stratigraphy spans...

The Pitjantjatjara Lands cover crystalline basement rocks of the Middle Proterozoic Musgrave Block, fringed by relatively unaltered sediments of the late Proterozoic and Palaeozoic Officer Basin, the late Palaeozoic Arckaringa Basin and the Mesozoic...

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...

As part of the South Australian Exploration Initiative, the use of high resolution aeromagnetic and radiometric surveying in petroleum exploration was tested in Block B5 west of Moomba. A number of associated studies were undertaken to utilise the...

The sample from A68 E427190/53J N7068100 is Early Cretaceous (uppermost Barremian) in age and correlative with the Cadna-owie Formation. Open marine conditions are indicated, this being typical of the upper part of the formation in the southwestern...

Picking the top of basement beneath the Cooper and Eromanga Basins in South Australia has proven to be difficult in recent years. Criteria are established to recognise basement lithologies on wireline logs and to distinguish them from the overlying...

Contains information on 25 of 27 seismic surveys comprising 349 seismic lines acquired between 1961 and 1987 - addresses basic seismic data only, so is not directly relevant to South Australia.