- 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 ...
In continuous mining, slicing consists of driving up some four to six places the set or desired distance, which may be 1,000 ft (304.8 m) or more, and then pulling the pillars on retreat. After completion of one slice, the unit moves over and mines another along the gob.
Industry:Mining
Equal to the fan static head plus the velocity head at the fan discharge corresponding to a given quantity of air flow.
Industry:Mining
In refining blister copper by reducing its oxides through stirring a molten bath of metal with a green timber pole, continuation of this process until the desirable characteristic fracture of tough-pitch refined metal is lost. Some reoxidation then becomes necessary.
Industry:Mining
In a fault, that component of the net slip that is parallel to the trace of an index plane, such as bedding, on the fault plane.
Industry:Mining
Orthoclase-bearing oligoclase basalt, with major olivine, accessory apatite, and opaque oxides. Pyroxene may or may not be present.
Industry:Mining
