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definition of a open pit mine is "an excavation or cut made at the surface of the ground for the purpose of extracting ore and which is open to the surface for the ...

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coal mining - Choosing a mining method Jun 14, 2016 In open-pit mining of the coal seam, several benches are established in A variety of equipment is used in a ...

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Open-pit, open-cast 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.

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Workers stand in an open pit coal mine. ... this economy comes with a strict environmental cost, ... "Open Pit Mining Pros & Cons." Synonym, ...

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Open-pit, open-cast 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.

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