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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 Wheal Vor ： ウィキペディア英語版 Wheal Vor Wheal Vor was a metalliferous mine about two miles north west of Helston and one mile north of the village of Breage in the west of Cornwall, England, U.K. It is considered to be part of the Mount's Bay mining district.〔Dines 1956, p.169.〕 Until the mid–19th century the mine was notable for its willingness to try out new innovations. Although very rich in copper and tin ores, the mine never lived up to its expectations: during the later part of the 19th century it had several periods of closure, and an attempt to reopen it in the 1960s was not successful mainly because of bureaucracy. ==Geology== The country rock at the mine is killas, mostly hard, blue-grey rock. The mine's main produce was copper and tin derived from the nearby Tregonning-Godolphin granite, part of the Cornubian batholith. There were four main lodes at the mine, two of which were crossed by two wide elvan dykes, wide. At the intersections the lodes widened and mineralization spread through the dykes, forming irregular masses which were stoped to the full width of the dykes.〔Dines 1956, p.224.〕 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「Wheal Vor」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.