- 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 ...
The aggregate of the surface features of sedimentary particles, independent of size, shape, or roundness; e.g., polish, frosting, or striations.
Industry:Mining
The agitation of a bath of molten pig iron by hand or by mechanical means, in an oxidizing atmosphere, in order to oxidize most of the carbon, silicon, and manganese, and thus produce wrought iron.
Industry:Mining
The air course parallel to and below an entry or the entry used for secondary purposes in two-entry system of mining. Locally, any entry not having track in it.
Industry:Mining
The algebraic difference between the mean total pressure at the fan outlet and the mean total pressure at the fan inlet.
Industry:Mining
The alkaline spent liquor from the digesters in the manufacture of sulfate or soda wood pulp.
Industry:Mining
The alternation of ore with gangue, usually quartz, in parallel sheets. Compare: ribbon
Industry:Mining
The amorphous groundmass, which is transparent in thin sections, binding together the constituents of bituminous coal of high grade. Applies to the transparent variety of residuum found in high-grade coals.
Industry:Mining
The amount of closure of the walls of a stope that occurs before supports have been placed and begin to oppose that closure.
Industry:Mining
The amount of cutting a diamond will accomplish before being completely worn away by abrasion. In bits, diamond life usually is expressed in the number of feet drilled in a 907 specific rock before the inset diamonds become too dulled to continue cutting or are lost by rollout or completely worn away by abrasion.
Industry:Mining
