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United States Bureau of Mines
Industry: Mining
Number of terms: 33118
Number of blossaries: 0
Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources. Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
MRE
The Mining Research Establishment of the National Coal Board, Great Britain. Its prime purpose is to carry out tests and investigations aimed at increasing the efficiency of coal production while maintaining a high level of safety.
Industry:Mining
The minute ripples or thumbmarks characteristic of the fractured surface of amethyst.
Industry:Mining
The Mississippian and Pennsylvanian periods combined, ranging from about 345 million years to about 280 million years ago; also, the corresponding systems of rocks. In European usage, the Carboniferous is considered as a single period and is divided into upper and lower parts. The Permian is sometimes included.
Industry:Mining
The mixture obtained by grinding crude gold and silver ore and dissolving the preciousmetal content in a sodium-cyanide solution.
Industry:Mining
The mixture of amalgam gold and magnetite obtained from behind the riffles in a gold sluice.
Industry:Mining
The mixture of coal and rock dusts that will not permit the propagation of an explosion.
Industry:Mining
The mixture of crushing bodies, ore particles, and water being tumbled in the ball mill.
Industry:Mining
The mixture of gases that remain in a mine after a mine fire or an explosion of combustible gases. It consists of carbonic acid gas, water vapor (quickly condensed), nitrogen, oxygen, carbon monoxide, and in some cases free hydrogen, but usually consists principally of carbonic acid gas and nitrogen, and is therefore irrespirable.
Industry:Mining
The modernization of underground roadways, transport, ventilation systems, and the layout of mine workings. It may include modernization of shafts and winding and also the improvement of surface handling and cleaning or washing equipment.
Industry:Mining
The moisture content of a soil when the water is static.
Industry:Mining
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