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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 Mining in Gabon ： ウィキペディア英語版 Mining in Gabon Gabon was the richest of the former French Equatorial African colonies in known mineral deposits. In addition to oil, which accounted for 80% of the country’s exports in 2004, Gabon was a world leader in manganese. Potash, uranium, niobium, iron ore, lead, zinc, diamonds, marble, and phosphate have also been discovered, and several deposits were being exploited commercially. Ownership of all mineral rights was vested in the government, which has increased its share of the profits accruing to foreign companies under development contracts. ==Manganese== The high-grade manganese deposits at Moanda, near Franceville, are among the world’s richest. Reserves were estimated at 250 million tons with a metal content of 48%–52%. Production had been limited to a ceiling of 2.8 million tons a year, corresponding closely to the capacity of the cableway—at 76 km, Africa’s longest overhead cable—used to transport the mineral to the Congo border, from where it was carried by rail to the port of Pointe Noire. The newer Trans-Gabon Railway provided an alternate export outlet through the Gabonese port of Owendo, and the cableway was made redundant. Use of the railroad has cut shipping costs by $20 million per year. Manganese was exploited by the Mining Co. of L’Ougoué (Comilog, an international consortium), which ranked among the world’s lowest-cost producers. In 2004, an estimated 2.4 million metric tons of metallurgical-grade ore were extracted, up from 1.95 million metric tons in 2003. Annual production capacity at the Moanda Mine was 2.5 million tons, which amounts to around $5,442,000,000 a year, with reserves estimated to last 100 years. In 2012, BHP Billiton were developing a second manganese deposit. 〔 http://au.ibtimes.com/articles/290110/20120131/australia-gabon-africa-china-iron-ore-bhp.htm#.UKcLyWfcBR4 〕 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「Mining in Gabon」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.