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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Geology of Burkina Faso ： ウィキペディア英語版 Geology of Burkina Faso The geology of Burkina Faso is dominated by Precambrian rocks of the Guinea Rise, a dome of Archaean rocks, largely migmatites, gneisses and amphibolites, over which lie greenstone belts of early Proterozoic age. The latter are metasediments and metavolcanics assigned largely to the Birrimian Supergroup, a suite of rocks in which economically significant mineralization occurs. ==Economic geology== Gold is much the most important geological commodity for Burkina Faso’s economy and is produced from the Kalsaka, Mana and Youga mines amongst others. Other metals worked include manganese, copper, zinc and silver whilst exploration continues for copper and uranium. Limestone, marble, phosphates, pumice and salt are also worked commercially. Alluvial diamonds have been found too.〔(Extractive Industries Source Book; Burkina Faso, mining )〕 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「Geology of Burkina Faso」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.