Copper shale (copper-bearing shale)

Japanese: 含銅ケツ岩(含銅頁岩) - がんどうけつがん(英語表記)Copper shale
Copper shale (copper-bearing shale)
Permian shale rich in heavy metals found in central Europe, including Germany, Poland, the Netherlands, and the United Kingdom. It is rich in many metals, including copper, lead, zinc, and silver, but is mainly mined for copper. It averages 30-50 cm thick. It covers an area of ​​600,000 km2 , but only 1% of it contains more than 0.3% copper, and only 0.2% has a content large enough to be mined as ore (2-3% copper or more). The deposits are mainly found in Germany and Poland, and the Mansfeld region on the southeastern edge of the Harz Mountains and the Sudetes in Poland have long been major mineral-producing areas in both countries.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
ドイツ,ポーランド,オランダ,イギリスなどの中部ヨーロッパに分布する,二畳紀の重金属に富むケツ岩。銅をはじめ鉛,亜鉛,銀などの多くの金属が濃集しているが,主として銅を対象に採掘されている。厚さは平均30~50cm。分布面積は60万km2にも達するが,0.3%以上の銅を含有しているのはその1%,鉱石として採掘しうる含有量(銅2~3%ないしそれ以上)をもっているのは0.2%にすぎない。鉱床地域は主としてドイツとポーランドにあり,ハルツ山地南東縁のマンスフェルト地域やポーランドのズデーテン山地は,古くから両国の主要な鉱産地である。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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