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Glossary of Mining Terms
Back — The roof or upper part in any underground mining cavity. Backfill — Mine waste or rock used to support the roof after coal removal. Barren — Said of rock ...
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New Uranium Mining Projects Arizona, USA (last updated 5 Aug 2017) Contents:
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Chapter 74 Mining and Quarrying
Chapter 74 Mining and Quarrying MINING: AN OVERVIEW. Norman S. Jennings. Minerals and mineral products are the backbone of most industries. Some form of mining .
Glossary of Mining Terms Kentucky Coal Education
A. Abutment In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch ...
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