mine:an excavation made in the earth to extract minerals mining:the activity,occupation,and industry concerned with the extraction of minerals mining engineering: the practice of applying engineering principles to the development,planning,operation,closure,and reclamation of mines some terms distinguish various types of mined minerals.
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Get Pricethe deepest is a gold mine in south africa operating at a depth of 4 km diesel fuel is traditionally and still today much used energy source in surface mining
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Get Pricethere are several types of surface mining, but the three most common are open pit mining (see coal mining). there are two types of quarrying. there is the
Get Pricesurface mining when an ore bed has been located relatively close to earth's surface, it can be mined by surface techniques. surface mining is generally a much preferred approach to mining because it is less expensive and safer than subsurface mining.
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Get Pricesouth deep gold mine, in the mpumalanga region of south africa, is the second biggest gold mine in the world.it is the also the seventh deepest mine in the world with a depth of 2,995m below surface.
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