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The Mining Process. Once a mining lease has been awarded to an operator, exploration (i.e. evaluation of the resource) takes place, followed by a planning and ...
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Coal Mining and Production Industry Description and Practices Coal is one of the world's most plentiful energy resources, and its use is likely to quadruple by
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Coal mining - Wikipedia, the free encyclopedia. The goal of coal mining is to obtain coal from the ground. Coal is valued for its energy content, and, since the 1880s ...
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