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Underground mining

by Dead Soul  |  3 years, 1 month(s) ago

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Underground mining

 Tags: Mining, underground

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  1. Ammad Ghauri
    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those minerals containing metals such as ore containing gold, copper, zinc, nickel and lead, but also involves using the same techniques for excavating ores of gems such as diamonds. In contrast soft rock mining refers to excavation of softer minerals such as salt, coal, or oil sands.

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