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Difference Between Open Pit Mining Quarry Underground Mine Shafts

Difference between open pit mine, quarry and an . Oct 06, 2015 There are two different methods for extracting minerals viz. to dig into the earth to extract the mineral bearing ore which is called underground mining and involves digging shafts or to remove the earth above the mineral bearing ore or overburden and extract the ore from the open pit. .

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Difference Between Open Pit Mining Quarry Underground Mine Shafts

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