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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 Hanaoka mine ： ウィキペディア英語版 Hanaoka mine The was an open-pit mine with major deposits of “black ore” (sphalerite and galena - a mixture of zinc, lead, gold, silver, and other precious metals), located in the Tōhoku region of northern Japan in the village of Hanaoka, Kitaakita District, Akita Prefecture. The area is now part of the city of Ōdate. ==History== Mining operations began in 1885, with the mine under the control of what later became the Kajima Corporation. New deposits were discovered and exploited through the use of new technologies in the 1960s and 1970s, but by 1994 the mine was deemed to be no longer profitable, and operations were discontinued. Dowa Holdings and several of its subsidiary companies now control the site, and operate various waste management, recycling, landfill, and soil reclamation projects. Incinerator ash contaminated with radioactive cesium created by the burning of debris from the Fukushima Daiichi nuclear disaster is also stored at the site. 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「Hanaoka mine」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.