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Four Mile is Australia's fifth uranium mine. It is sited in the Frome Basin in far north of the state of South Australia, around north of the state capital, Adelaide. It is from the existing Beverley uranium mine, where its uranium oxide product is produced. Construction of the mine commenced in late 2013〔("Construction of the Four Mile uranium mine in South Australia has started despite one of the partners being opposed to the project" ) ''The Advertiser'', 2013-12-03.〕 and the mine was officially opened in June 2014. Prior to opening, it was claimed that Four Mile would become the tenth-largest uranium mine in the world. ==Mine== Four Mile is the fifth uranium mine in Australia. The deposit was first discovered in 2005〔("SA's newest uranium mine" ) Roxby Downs Sun, South Australia (2014-07-03). Retrieved 2014-07-03.〕 and is the largest uranium discovery in Australia since 1990. In June 2009, Alliance Resources announced that the deposit contained of uranium oxide and the ore was graded at ten times that of Olympic Dam mine and double that of the Ranger mine in the Northern Territory.〔 〕 The mine life is expected to be at least 15 years.〔 The proposed mine is a joint venture between Quasar Resources Pty Ltd, who own 75 per cent of the project and Alliance Resources Ltd, who own the remaining 25 per cent. Quasar Resources is affiliated with Heathgate Resources Pty Ltd, owner and operator of the nearby Beverley mine.〔(【引用サイトリンク】publisher=Quasar Resources Pty Ltd )〕 Mining was proposed to be an in-situ leach operation, pumping a weak acid solution into the formation that dissolves the uranium-bearing ore. The ore-bearing solution is then pumped to the surface for extraction and treatment. This method was chosen to allow the mine to commence operations relatively quickly.〔 The developers of the mine originally planned for the mine to be operational in the first quarter of 2010 and stated that it would produce of uranium oxide per year.〔 However, ongoing legal disputes between the joint venture partners, Quasar Resources Pty Ltd and Alliance Resources Ltd. led to delays. The mine was officially opened by the South Australian Premier Jay Weatherill and Treasurer Tom Koutsantonis on Wednesday June 28, 2014.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Four Mile uranium mine」の詳細全文を読む スポンサード リンク
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