[en] The line Creek geosyncline formation and the Alligator Rivers uraniferous area geology are examined. The main uranium deposits: Koongara, Ranger I no.1 and Narbalek are briefly presented and similarities in these deposits are underlined. The Jabiluka deposit is examined in another paper

[en] The Jabiluka deposits in the Northern Territory of Australia comprise one of the world's greatest concentrations of uranium metal. Indicated and inferred reserves total 207,000 tonnes of contained U₃O₈ and 8.09 million grams (260,100 oz) of gold. This paper attempts to describe the general geology of the deposits as known to date with an emphasis placed on the mode of mineralization. Certain conclusions and comparisons are presented on the metallogenesis to aid in the search for deposits in similar environments. (Author)

No abstract available

[en] The Alligator Rivers Uranium Province in the Northern Territory of Australia has proven uranium deposits at Jabiluka, Ranger, Koongarra and Nabarlek which contain more than 80% of the country's low-cost reasonably assured uranium resources estimated to be 290,000 t U. Following the Government's decision in 1977 to proceed with the further development of Australia's uranium resources, the region is destined to become a major producer of U₃O₈ for export. At the time of the decision provision was made for strict controls to protect the environment, the granting of Aboriginal land rights and the creation of a major national park. The paper describes the progress made to achieve these objectives. The open-cut mining methods to be used at Ranger, Koongarra and Nabarlek are described, as well as the underground mining operations proposed for Jabiluka. Each of the treatment plants will use the conventional acid leach, solvent extraction purification process for uranium recovery. The characteristics of the treatment operations are outlined. The water-management schemes, tailings disposal methods and procedures for environment protection are also discussed. The proposed initial production capacities of the operations are: Jabiluka 2540 (expanding to 7630 in the fifth year of production); Ranger 2540 (expanding to 5080 when commercially practicable); Koongarra 850; and Nabarlek 920 t U/a. Both Nabarlek and Ranger have been granted Government development approval and construction is proceeding at each site with the expectation that normal commercial production will commence towards the end of 1980 and 1981, respectively. Planning for the Jabiluka and Koongarra projects has reached an advanced stage; each are undergoing environmental procedures and will have to reach agreement with the Aboriginals on environmental and other matters before site work can commence. (author)

[en] An overview of the status of each of the existing three sites of mining activity and the major sites of exploration for uranium in Australia is provided. It is intended to be a source of useful information for all people involved in debating the issues of uranium mining. 1 map., ills

[en] Details of uranium deposits in Australia are given. These include location, ore reserves, grade, project status and uranium oxide output

[en] The leaching characteristics of a number of Australian uranium ores were determined under acid and alkaline conditions. Ores from the Ranger, Nabarlek and Koongarra deposits in the Northern Territory were readily leached in dilute sulphuric acid. Ore from the Roxby Downs deposit in South Australia required leaching at 55 deg C to achieve a satisfactory recovery. All ores contained refractory minerals which were not leached under conventional conditions, limiting uranium extraction to 86-96%. Carbonate leaching of carnotite in calcrete ores from Yeelirrie and Lake Way in Western Australia yielded uranium extractions of at least 98 per cent. Leaching rates were considerably faster than those reported for other applications of alkaline leaching as the slow oxidation step was not required

[en] This parliamentary paper contains recent ministerial statements, government leaflets, and background papers relating to Australia's decision to mine and export uranium

[en] The North-Eastern part of Spain shows a variety of lithologies morphologies and structures. A lot of different ores can be found but deposit reserves are very scarce and widespread. Metallic mines were important in the past but now are spent. All types of coal are present but deposits are small and exploitation has reduced very much the reserves. Only uranium and lignite are significant materials but the current trends of international prices makes not north their extraction. Gas and Petroleum are being extracted and their well known deposits will keep activity as nowadays. The paper makes and additional review on other non-energetic ores like special clays, sodium an potassium salts, sodium sulphates, gypsum and other

[en] A brief history of uranium exploration and mining in Australia since 1894 is given. Uranium deposits and prospects are listed