a coal-mining area
71Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… …
72Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …
73Major coal producing regions — China is the largest producer of coal in the world, while the United States contains the world s largest coal reserves. China and the US are also among the largest coal consumers. Other important coal producing countries include: Australia, India …
74Ruhr Area — The Ruhr Area, (German Ruhrgebiet , colloquial Ruhrpott , Kohlenpott or Revier ) is an urban area in North Rhine Westphalia, Germany, consisting of a number of large formerly industrial cities bordered by the rivers Ruhr to the south, Rhine to… …
75Underground mining (soft rock) — refers to a group of underground mining techniques used to extract coal, oil shale and other minerals or geological materials from sedimentary ( soft ) rocks. Because deposits in sedimentary rocks are commonly layered and relatively less hard,… …
76Outburst (mining) — An outburst is the sudden and violent ejection of coal, gas and rock from a coal face and surrounding strata in an underground coal mine. When outbursts occur, they can be very serious events, possibly even resulting in multiple fatalities.… …
77McArthur Mining Company — Historical Marker showing location in Corunna of Michigan s first coal mine The McArthur Mining Company (a.k.a. Corunna Coal Company) is a defunct coal mining company. It was Michigan s first coal mine, with the first coal mined in 1839.[1] …
78Vale (mining company) — Vale S.A. Type Sociedade Anônima Traded as BM F Bovespa …
79Australian Coal Alliance — The Australian Coal Alliance is a community action group formed to oppose the Wallarah 2 Coal Project proposal in Wyong hinterland, Central Coast by Kores, a company owned by the South Korean Government. The company seeks to mine coal beneath the …
80New Hope Coal — New Hope Corporation Limited Type Public (ASX: NHC Industry Resourcess Headquarters Brisbane, Australia Area served …
