In-situ leaching of a uranium orebody can only be successful if the deposit meets a number of essential criteria. These criteria are: 1. The ore occurs in a generally porous and permeable horizontal bed underlain and overlain by impermeable strata;...

Aeromagnetic, ground magnetic and EM surveys, with follow-up rock chip, stream sediment and soil sampling, RAB drilling (688 holes, total 17,553 m) and RC drilling (12 holes, total 1149 m), have defined an extensive zone of anomalous base metal...

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Initial exploration carried out near Lilydale Homestead, 80 kilometres south-east of Yunta, targeted possible Starra-style gold in the Braemar Ironstone facies. Flying of an airborne semi-detailed magnetic and radiometric survey identified magnetic...

Exploration for possible heavy mineral sand marine placer deposits within Tertiary sediments on the northern margin of the Murray Basin comprised aircore drilling (28 holes, total 744 m) in the Mutooroo station area, 50 km south-east of Olary. The...

To promote renewed regional exploration of the northern Yorke Peninsula using modern techniques and concepts, MESA as part of the SAEI programme has prepared a GIS-based data package, which incorporates a study of all available drillcore and a...

Exploration undertaken over an area located 60 km west of Port Augusta targeted possible Broken Hill or Aggeneys - Gamsberg type massive Pb-Zn deposits within Early Proterozoic Hutchison Group banded iron formation metasediments, and also any Early...

Exploration undertaken on ground situated east of Pernatty Lagoon has included the acquisition of extensive ground magnetic and gravity surveys plus a small aerial magnetic and radiometric survey, and performing many specific gravity and magnetic...

Exploration for Olympic Dam-style Cu-Au-U mineralisation, undertaken over areas to the south-east of Arcoona Homestead and in the vicinity of Woomera township, has comprised numerous reconnaissance and then detailed gravity, ground magnetic and CSAMT...

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...

348 reconnaisance air-core drillholes were completed on the subject ELs between 5 July and 3 October 1990. The best heavy mineral sand intersections were found near Immarna (EL 1602), with some zones approaching ore-grade percentages. Unfortunately,...

Ongoing copper exploration in the Mount Gunson area was directed primarily at locating economic stratiform mineralisation in the Tapley Hill Formation, which overlies Pandurra Formation and the associated Cattlegrid orebody. New work comprised...

North Ltd's Barton Project commenced in 1990 across a number of licences progressively taken out over the western Gawler Craton, which eventually came to include EL 1865. Initial exploration for heavy mineral sand in the Barton-Ooldea area, 100-200...

Ongoing exploration for Olympic Dam-style Cu-Au-U mineralisation, over an area centred ~15 km south-east of Arcoona Homestead, during this period comprised 3D geophysical modelling of possible source geometries for, and RC drilling (10 holes, total...

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...

Detailed base and precious metals exploration undertaken by Utah Development Company in the area of the Worumba Anticline has targeted possible stratiform Zambian Copperbelt - type deposits. Exploratory work has included 72 geochemical vertical...

The target in the Kanmantoo mine area was Cambrian stratabound lead-zinc mineralisation known to be associated with pyritic units of the Brukunga Formation, and copper associated with andalusite-staurolite-garnet-chlorite-biotite schists in the same...

Exploration disclosed widespread uranium mineralisation, with drill-indicated reserves of 6 million tonnes, at an average grade of 0.8 kg / tonne U3O8, existing in 5 major deposits. About 625 drill holes totalling 53,000 m tested these major deposits...

Continuing geological, geochemical, petrographic and ground magnetic work was done by AAP along 26 sampling profiles to try to unravel possible stratigraphic and tectonic controls on known base metal mineralisation at the Royal Keyneton and Hope mine...