- 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 ...
A manually operated compacting machine, weighing about 200 lb (91 kg), raised by an intrinsic internal combustion mechanism and allowed to fall by gravity.
Industry:Mining
A manufactured refractory comprised substantially of calcined anthracite coal.
Industry:Mining
A map created for the purpose of delineating a boundary line and the adjacent territory.
Industry:Mining
A map incorporating the information obtained in a reconnaissance survey and data obtained from other sources.
Industry:Mining
A map indicating, usually by means of contour lines, the varying thickness of a designated stratigraphic unit.
Industry:Mining
A map indicating, usually by means of contour lines, the varying thickness of a designated stratigraphic unit.
Industry:Mining
A map on which is recorded geologic information, such as the distribution, nature, and age relationships of rock units (surficial deposits may or may not be mapped separately), and the occurrence of structural features (folds, faults, joints), mineral deposits, and fossil localities. It may indicate geologic structure by means of formational outcrop 1348 patterns, by conventional symbols giving the direction and amount of dip at certain points, or by structure-contour lines.
Industry:Mining
A map on which several levels of a mine are shown on a single sheet. Horizontal projection of data from different elevations.
Industry:Mining
A map projection on which the shape of any small area of the surface mapped is preserved unchanged.
Industry:Mining
