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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
M.E. 6 exploder
Mining; General mining
An exploder approved for firing six shots simultaneously in British coal mines. It contains a 67-1/2-V high-tension dry battery, used to charge a 150-mu F condenser, which in turn is discharged ...
donor
Mining; General mining
An exploding charge producing an impulse that impinges upon an explosive acceptor charge.
seismic survey
Mining; General mining
An exploration technique utilizing the variation in the rate of propagation of shock waves in layered media. It is used primarily to delineate subsurface geologic structures of possible economic ...
explosions from molten iron
Mining; General mining
An explosion caused by molten iron coming in contact with water or wet material.
colliery explosion
Mining; General mining
An explosion in the workings or roadways of a colliery as a result of the ignition of combustible gases or coal dust or a mixture of both.
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