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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
clastic deformation
Mining; General mining
A process of metamorphism that involves the fracture, rupture, and rolling out of rock and mineral particles. In some instances, the crystal structure may be preserved, but the orientation of the ...
mining retreating
Mining; General mining
A process of mining by which the ore, or coal, is untouched until after all the gangways, etc., are driven, when the work of extraction begins at the boundary and progresses toward the shaft. ...
Adeline steelmaking process
Mining; General mining
A process of producing precision castings of steel or steel alloys, which comprises first forming the steel or steel alloy in molten form by the aluminothermic process, by igniting a mixture of iron ...
electromagnetic separation
Mining; General mining
A process of removing magnetic materials from relatively nonmagnetic materials, using electromagnets which travel along a conveyor, over a drum, or into a revolving screen.
calorizing
Mining; General mining
A process of rendering the surface of steel or iron resistant to oxidation by spraying the surface with aluminum and heating to a temperature of 800 to 1,000 degrees C.
magmatic corrosion
Mining; General mining
A process of re-solution in which an early formed phase, such a quartz phenocryst, later becomes corroded or embayed as the result of some change in the conditions affecting the solubility of the ...
corrosion
Mining; General mining
A process of re-solution in which an early formed phase, such a quartz phenocryst, later becomes corroded or embayed as the result of some change in the conditions affecting the solubility of the ...
