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Feb 04, 2017· Video embedded· Copper Mining and Smelting 1940s open cast mining ore to wire mining to production
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What is an environmental problem that is caused by open cast mining of copper ore?
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Openpit, opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.
Openpit mining (also known as opencut mining or opencast mining) is a type of strip mining in which the ore deposit extends very deep in the ground, necessitating ...
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