Investigations included drilling in the eastern part of EL 41, costeaning and close space drilling near Nob Well and Apollonaris anomaly, water well sampling, and ground search for carnotite.

The south-eastern Lake Frome Embayment in the vicinity of Quinyambie Station was explored for Upper and Lower Tertiary 'blanket' or 'roll front' type sedimentary uranium, via the drilling of 75 open vertical rotary mud holes with a total penetration...

38 rock specimens from outcrops in the Tibooburra area were examined palaeontologically for clients Fitzpatrick, Wilson and Company. A Neocomian to probably Cenomanian age is represented.

Fortville No. 3 was drilled as a combined water and stratigraphic well. The sequence which was encountered consists of 62 feet recent sediments; 338 feet Lower Tertiary sands and lignitic clays; 2605 feet Cretaceous sediments and 483 feet Mooga...

To a total depth of 3610 feet Fortville No. 3 well intersected 62 feet of recent sand, 368 feet of Tertiary sand, silt and clay, 887 feet of Canomanian (Winton Series, Blanchewater Formation in part at least) sandstones, siltstones and dolomite; 1243...

The MARREE mapsheet area lies in arid country about 400 miles north of Adelaide, South Australia. It includes the town of Marree, on the Alice Springs railway line, and part of the Birdsville and Strzelecki tracks. The area is covered mainly by flat...

Stuart Range No.3 bore, which was deepened by rotary drilling during January-March 1965 in a search for additional underground water supplies for the Coober Pedy Opalfield, and which was completed as a stratigraphic bore (with some bottomhole rotary...

Marginal sediments of the Great Artesian Basin outcropping on the north eastern slopes of the Flinders Ranges consist of non-marine gritty sandstones of Neocomian age (Blythosdale equivalents) transitional brackish water sandstones of basal Aptian age...

A suite of samples collected from the New South Wales portion of the Murray Basin and the south west corner of the Great Artesian Basin proved to be, on micro-palaeontological evidence, mainly of Lower Cretaceous age. Three from between Cobar and...

Bumbarlow 1 (TD 720.33 m) aimed to test the lithology and petroleum potential of the Cambrian section in the central part of the eastern Arrowie Basin. It continuously cored a sequence over 300 m thick of flat-lying Proterozoic sediments interbedded...

Enlarged written version of a talk on the geology of opal, its occurrence and mining methods prepared for public presentation.

Small quantities were mined from 1977 to 1978. The opal infills joints in leached and weathered Cretaceous shale. Considerable potential exists for further small finds of opal.

This study covers a southern lobe of the Eromanga Basin known as the Frome Embayment, which extends W-E from the Flinders Ranges to the Barrier Ranges, and southwards from the vicinity of Moolowatana Station to the Scott Hill-Mundaerno Hill region....

The geology is reviewed, with emphasis on exposure and surface expression of the basin and regional geological mapping aspects. Prior to 1978, the term Great Artesian Basin was used to refer to the Eromanga Basin in SA. Discusses early contributions...

Two specimens were probably formed by partial dissolution of Andamooka Limestone erratics within Cretaceous marine sandy clay, followed by replacement of the remaining carbonate rock by fine grained silica together with growth and deposition of silica...

221 shafts were drilled. Precious opal or potch was found in 11 shafts and good sandstone prospective for opal in 34 shafts. A new field, Southern Cross, was established subsequent to the discovery of potch in subsidised shaft 85.

Results of mapping, particularly basal Mesozoic sandstone unit, description of sections and borehole study of cuttings from 14 holes.

The area mapped includes most of the area south of Lake Frome between the Flinders and Barrier Ranges, and part of the Olary Hills. Basin nomenclature has been revised for the Cainozoic. Drilling by CSR, Minad and Petromin NL has been used in the...

Small quantities of precious opal have been mined from sediments of the Early Cretaceous Marree Formation at Stuart Creek, 50 km north of Andamooka. These sediments appear to have been unaffected by the Early Tertiary deep weathering and bleaching...

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.