australia's identified mineral resources 2004 - Geoscience Australia

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AUSTRALIA’S IDENTIFIED MINERAL RESOURCES 2004 URANIUM The majority of Australia’s uranium deposits were discovered between 1969 and 1975 – approximately 50 deposits (15 with significant resource estimates) were discovered during this short period. Since 1975, only another four deposits have been discovered – of these four, only one deposit (Kintyre in the Paterson Province of WA) has Reasonably Assured Resources recoverable at less than US$40/kg U (equates with EDR). Hence, the progressive increases in Australia’s EDR for uranium from 1975 to the present (as shown on Fig. 1) were due to on-going delineation of resources at known deposits. From 1983 onwards, the Olympic Dam deposit has been the major contributor to increases in Australia’s EDR. The large increases shown on Fig. 1 were due to the following: ■ ■ ■ in 1983, initial resource estimates for Olympic Dam and Ranger No. 3 Orebody (NT) made by the former Australian Atomic Energy Commission (‘i’). in 1993, further increases in EDR for Olympic Dam (based on estimates reported by WMC Resources Ltd), and first assessment of resources for the Kintyre deposit by the former Bureau of Mineral Resources (‘j’). in 2000 and 2002, increases were due to continuing additions to the Olympic Dam resources. 16
COMMODITY REVIEWS Construction of the Broadmeadow punch longwall coal mine, BHP Billition Mitsubishi Alliance Bowen Basin, Queensland. Inset: Broadmeadow punch longwall mine entrance (main gate). (Geoscience Australia, Bill McKay)
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Pouring copper anodes, Olympic Dam
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