- 行业: 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 ...
Occurs naturally at Bergen an der Trieb, Saxony, with other uranium minerals; named from locality, the older name being rejected as implying a barian phosphuranylite rather than the barium analogue. Syn. for barium-phosphuranylite.
Industry:Mining
Occurs when both combustible gases and coal dust are present below their lower limits, but in combination produce sufficient heat of combustion to propagate an explosion.
Industry:Mining
Occurs when the products of combustion leaving the furnace or appliance do not contain any gaseous combustible matter.
Industry:Mining
Of a mineral lease, the rent that must be paid whether or not minerals are being extracted.
Industry:Mining
Of a particle, area calculated from data obtained by a specified method, such as: (1) adsorption measurement, (2) calculation, (3) permeability measurement, (4) microscopic observation, or (5) close screening and averaging from study of a number of particles.
Industry:Mining
Of a screen, the total area of the screen deck exposed to the flow of the material feed.
Industry:Mining
Of an explosive, the loading weight per unit of nominal volume, which is always known. Its unit is kilogram per cubic decimeter. The degree of packing defined in this way is 6% greater than the density of the explosive in the drill hole.
Industry:Mining
