77 rotary / diamond holes drilled by Pacminex (total 9385 m, including 196 m cored) plus another 53 holes drilled within SML 544 by joint venturer Esso (total 7029 m) indicate that a highly prospective radioactive mineralised zone occurs within...

Clay sample CE3989 has a brightness that is well below the requirements for a paper coating clay (85% or greater). Bleaching of the - 2 micron clay fraction increased the brightness to filler grade requirements (75-85%). Clay sample CE4008 has a...

Drilling and geophysical logging of 41 rotary drillholes totalling 20,657 feet in the central area of the Lake Frome depression has failed to discover economically recoverable concentrations of uranium in Tertiary age sand units.

The recently completed drilling of 189 open rotary holes (total penetration 22,427 m), plus the redrilling and geophysical re-logging by joint venturer Minad-Teton of 19 previously completed Carpentaria Exploration Co. uranium exploration holes (for a...

Ongoing exploration for possible economic sandstone-type uranium deposits formed in Tertiary palaeochannels in the Yarramba area, 50 km north-west of Cockburn, has included further open hole rotary drilling and downhole geophysical logging (176 holes...

Exploration aimed to determine the mode of occurrence of uranium ore bodies in the Yarramba Palaeochannel, and to identify favourable drillsites. The 1980 drilling revealed significant mineralization occurring between East Kalkaroo and Honeymoon...

In first survey (reconnaissance), 6 potential palaeochannels were outlined. 2 occur in the Low Stoney prospect. The second survey was over the projected path of the Yarramba Palaeochannel north from the Honeymoon deposit, to determine its path, shape...

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No new palaeochannels were located. Pathways for the Billeroo West and Curnamona palaeochannels are postulated. The depth to basement is greatest in the north and west where a sub-basin appears to occur. Deep resistivity soundings were conducted...

Work carried out at Amdel and at the Colorado School of Mines' Research Institute has indicated that both a two solvent system (EHPA and TBP or DBBP) and a three solvent system (EHPA, DBBP and Alamine 336) of cationic exchangers are satisfactory for...

Fossiliferous Quaternary lacustrine deposits of the Lake Eyre Basin are exposed in escarpments along the margins of Lake Eyre, North and were intersected in shallow boreholes in the area. These are described in detail and their distribution shown on...

Four boreholes completed in Lake Eyre North and one in Lake Eyre South have provided further information on lake sediments and the stratigraphy of the Lake Eyre Basin. Modern lake sediments constitute a thickness of less than 15 feet in the deflated...

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

An Eocene age is determined for one sample from Tarcoola TPS-13R bore, a Pliocene age for a sample from Tarcoola TPS-15 bore, and a Plio-Pleistocene age for a sample from Tarcoola TPS-17 bore. A sample examined from Tarcoola TPS-14 bore contained no...

Two sandstone sequences, one un-named and one equivalent to the Watchie Sandstone, have been recognized on CURDIMURKA. These sandstone sequences occur beneath the Etadunna Formation. Both are believed to be equivalent to the Eyre Formation. The...

10 fully cored shallow holes (total 543.2 m) were rotary mud drilled at four localities by the Australian Commonwealth Bureau of Mineral Resources (BMR) to elucidate the cover stratigraphy, particularly the upper age limit of the Etadunna Formation,...

The sediments are dolomitic and clay rich mudstones and siltstones with intraformational mud conglomerates and rare cherts. The effects of flood and drought are reflected in lithological changes related to fluctuations in the physical and chemical...

The lowermost outcropping unit is the Bulldog Shale, overlain by the Coorikiana Sandstone, which includes a number of facies, ranging from quiet water marine to shoreline and possibly fluvial. Above is the Oodnadatta Formation. Tertiary units include...

The foraminifer, unlike any previously recorded from Etadunna Formation, is identified as Buliminoides sp. cf.B. chattonensis' (Finlay), and is compared with 3 widely separated Late Oligocene forms (New Zealand, Northern Adelaide Plains, Rhine...

The geomorphology of DALHOUSIE broadly consists of stony uplands which include mound springs in the west, and dunefield lowlands in the east on the edge of the Simpson Desert. Strongly folded ?Adelaidean sediments are overlain by a more gently folded...