- 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 ...
Strictly, the green film formed on copper and bronze after long exposure to the atmosphere. By extension, the term is applied to a film of any sort formed on wood, marble, chert, or other material after weathering or long exposure.
Industry:Mining
Strip recording of natural potentials of complex origin, arising in the immediate neighborhood of liquid-filled boreholes.
Industry:Mining
Strip recording of the secondary radioactivity arising from the bombardment of the rocks around a borehole by neutrons from a source being caused to move through the borehole. Used, generally in conjunction with other types of logs, for the identification of the fluidbearing zones of rocks.
Industry:Mining
Strip-mine equipment that breaks, loads, and hauls coal. Features include ripping teeth on the lip for breaking the coal and a flight conveyor for carrying the broken coal away from the lip. As the ripper teeth bite into and loosen the coal, the conveyor sweeps the loose coal upward and prevents buildup ahead of the lip.
Industry:Mining
Structural clay tile with tongue and groove edges resembling a book in shape.
Industry:Mining
Structural materials of metal alloys or plastics with built-in strengthening agents that may be in the form of filaments, foils, or flakes of a strong material.
Industry:Mining
Structure of either linear or platy nature developed in igneous rocks prior to or during consolidation.
Industry:Mining
Structureless colloidal jelly that forms the base of coals and is assumed to have been produced by the decay of plant materials.
Industry:Mining
