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Conference Proceedings

International Mining Geology Conference, Kalgoorlie, July 1993

Conference Proceedings

International Mining Geology Conference, Kalgoorlie, July 1993

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The Geology and Geological Practices at the Wiluna Mining Operations, Western Australia

The Wiluna mining operations are centred near the township of Wiluna 750 kilometres north-east of Perth and 600 kilometres east of Geraldton.
The Wiluna gold mines produced over two million ounces of gold, predominantly by roasting the refractory sulphide ores, before closing in 1947. In the period 1984 to 1992, 668 000 ounces of gold has been produced from free milling oxide ores and the retreatment of tailing. A plant capable of treating the refractory sulphide ores using the bacterial oxidation, Biox technique was commissioned in March, 1993.
The Wiluna lode deposits are hosted by a sequence of very low grade metamorphosed mafic flows at the northern end of the Norseman-Wiluna greenstone belt. A strike slip fault system provided conduits for fluid migration; ore deposition occurred at favourable sites along the faults. Satellite mines at Gourdis and Wiluna South provide laterite and lode style oxide ores.
The different styles of deposit and ore types at the Wiluna mining operations require a flexible approach to resource estimation and grade control practices.
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  • The Geology and Geological Practices at the Wiluna Mining Operations, Western Australia
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  • Published: 1993
  • PDF Size: 1.035 Mb.
  • Unique ID: P199305032

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