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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 Coneto de Comonfort ： ウィキペディア英語版 Coneto de Comonfort Coneto de Comonfort is a town and seat of the municipality of Canelas, in the state of Durango, north-western Mexico.〔Instituto Nacional de Estadística y Geografía. Principales resultados por localidad 2005 (ITER). Retrieved on December 19, 2008〕 As of 2010, the town of Coneto de Comonfort had a population of 858. Founded over 450 years ago, the town of Coneto de Comonfort was originally established as a mining community. It is located in the heart of the Coneto Mining District in the "Mexican Silver Trend", on the Mesa Central, east of the Sierra Madre Occidental mountains. This epithermal gold and silver-rich district has a long history of exploration and small scale production, dating back to the mid 16th century. The district is currently being explored by Orex Minerals Inc. (TSX.V: REX) and their project partner Fresnillo plc (LSE: FRES). ==Geology== Gold and silver mineralization is hosted in over 40 epithermal quartz veins and breccias of low to intermediate sulfidation. A corridor of veining extends northwesterly for 17 km and has a width of about 4 km. Individual veins can be traced for up to 2 km and vary from 1 to 20 metres thick. These are exposed in an erosional window of Lower Volcanic Series (LVS) andesite domes, flows, tuff and agglomerate, surrounded by Upper Volcanic Series (UVS) rhyolites and dacites. The main silver-bearing mineral is acanthite and native gold is associated with hydrothermal hematite. The base metal minerals galena, sphalerite and minor chalcopyrite increase with depth. Associated with the mineralized structures are hydrothermal alteration zones, including kaolinitization, silicification, and pyritization. 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「Coneto de Comonfort」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.