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Opencast Mining Methods Ppt

Opencast Mining Methods Ppt

2020-4-18ensp0183enspopencast coal mining by shovel dumper and dragline ppt Opencastminingor quarrying of minerals is easier thanminingbyunderground methods During quarrying the alluvium and rocks below which the minerals lie are removed and dumped in the initial stages in a place which is not required in future for quarrying residential or other purposes.

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