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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 Michigan Limestone and Chemical Company ： ウィキペディア英語版 Michigan Limestone and Chemical Company Michigan Limestone and Chemical Company (a.k.a. "Michigan Limestone") operates the world's largest limestone quarry located near Rogers City, Michigan.〔(Calcite, World's Largest Limestone Quarry )〕〔(Michigan Markers )〕〔''Mineral Resources of Michigan with Statistical Tables of Production'', page 137, published 1917 by (The Survey ) and by Michigan Geological Survey, Michigan Geological and Biological Survey, Michigan, United States Bureau of Mines, Michigan Geological Survey Division. Original available at University of Michigan.〕〔(Michigan's Nautical City )〕 It was founded in 1910, however production didn't begin until 1912.〔〔(Traveling Through Time: A Guide to Michigan's Historical Markers )〕 Ownership of the quarry has changed a number of times in recent years, but it is still one of the country's largest producers of limestone.The limestone which it uses is found in the limestone deposit underground in the northeastern part of Northern Michigan near Alpena just south of Rogers City along the shore of Lake Huron. ==History== About 1908 or 1909, the geologist Henry H. Hindshaw established the commercial value of limestone in Northern Lower Michigan.〔 Limestone is a raw material essential in industry for making steel, chemicals, and concrete. Hindshaw determined the value due to the especially high grade and purity of the limestone deposit underground in the northeastern region of Lower Michigan along the shore of Lake Huron, near Alpena and just south of Rogers City.〔〔(Presque Isle County area has history of adapting to changes )〕 The quality and size of the limestone deposit at Rogers City, and the availability of easy water transportation, led to the development of the quarry and a port. Both quarry and port are named Calcite, after Calcite, the principal ingredient of limestone.〔 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「Michigan Limestone and Chemical Company」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.