Germany's largest coalfield spreads across the Ruhr basin, a tributary of the Rhine on the right bank. It covers an area of approximately 6,200 square kilometers. The coal-bearing layers are Upper Carboniferous strata of the Paleozoic Era, containing numerous coal seams with thicknesses of 0.5 to 2.8 meters, and are endowed with a folded structure with an east-west axis. The total amount of coal reserves is said to be several tens of billions of tons. The coalfield produces coking coal and general purpose coal in a ratio of 7 to 3. It is well known that with the passage of the so-called Coal Bill in 1968, 24 mining companies in the coalfield merged to form one company, the Ruhr Coal Company, and began the rational development of the coalfield. The annual coal production is 40.73 million tons (1998). [Kinoshita Shigenori and Higuchi Sumishi] [References] | | | | | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
ライン川右岸の支流ルール川流域に広がるドイツ最大規模の炭田。面積約6200平方キロメートルに及ぶ。夾炭(きょうたん)層は層厚0.5~2.8メートルの多数の炭層を含む古生代上部石炭紀の地層で、東西方向に軸をもつ褶曲(しゅうきょく)構造をなして賦存する。総埋蔵炭量は数百億トンといわれる。原料炭と一般炭を産し、その比率は7対3となっている。1968年のいわゆる石炭法案の成立によって、この炭田の24の炭鉱会社が合同してルール石炭株式会社1社となり、炭田の合理的開発に踏み出したことはよく知られている。年出炭量は4073万トン(1998)。 [木下重教・樋口澄志] [参照項目] | | | | | | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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