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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
hydroextraction or hydraulic mining
Mining; General mining
A term that has been given to the processes of excavating and transporting coal or other material by water energy.
dioxide ore
Mining; General mining
A term that has been used somewhat in the Western United States for manganese ore.
earth stone
Mining; General mining
A term that may be applied to mined amber to distinguish it from sea amber. Compare: earth amber
phreatic water
Mining; General mining
A term that originally was applied only to water that occurs in the upper part of the zone of saturation under water-table conditions (syn. of unconfined ground water, or well water), but has come to ...
naturally bonded molding sand
Mining; General mining
A term used by foundrymen to refer to a sand that, as mined, contains sufficient bonding material for molding purposes.
white horse
Mining; General mining
A term used by quarrymen to denote a light-colored gneiss, aplite, or pegmatite.
disturbance
Mining; General mining
A term used by some geologists for a minor orogeny, e.g., the Palisades disturbance. Schuchert (1924) used revolution for a major orogeny at the end of an era, and disturbance for an orogeny within ...
