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Lake MacDonnell : ウィキペディア英語版 | Lake MacDonnell
Lake MacDonnell is a salt lake on western Eyre Peninsula near the Nullarbor Plain. The closest town is Penong. It is the site of a former salt mine and the largest gypsum mine in Australia, on the largest gypsum deposit in the southern hemisphere.〔(【引用サイトリンク】title=Lake Macdonnell )〕 ==Ore body== The ore body consists of calcrete coastal dunes of the Pleistocene Bridgewater Formation in a northwest-trending depression. The gypsum formed during the Holocene period. The gypsum deposit has a one-metre layer of gypsarenite containing 93 percent gypsum calcium sulphate. Below that is a layer of selenite containing 94-96% calcium sulphate. The deposit may contain as much as 500-700 million tonnes over an area of .〔
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「Lake MacDonnell」の詳細全文を読む
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