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Ulugh-Khem coal basin : ウィキペディア英語版 | Ulugh-Khem coal basin
Ulugh-Khem (also known as the Central Tuva Basin) is a coal basin located in the Tuva Republic, a part of modern-day Russia.〔(Free Dictionary )〕 It has an area of 2,300 km². Coal was originally found in Ulugh-Khem in 1883. Small-scale mining of Ulugh-Khem coal started 1914 and industrial mining in 1925. The coal deposits are from the Jurassic Period. ==References==
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「Ulugh-Khem coal basin」の詳細全文を読む
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