- 行业: Mining
- Number of terms: 33118
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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 in-place part of an identified resource from which inferred reserves are estimated. Quantitative estimates are based largely on knowledge of the geologic character of a deposit for which there may be no samples or measurements. The estimates are based on an assumed continuity beyond the reserve base, for which there is geologic evidence.
Industry:Mining
The inside diameter of a bit as measured between the cutting points, such as between inset diamonds on the inside-wall surface of a core bit.
Industry:Mining
The integral, over the whole of a finite extension, of each infinitesimal elongation divided by the corresponding momentary length. It is equal to log<sub>e</sub>(1 + epsilon ), where epsilon is the strain as ordinarily defined.
Industry:Mining
The internal or dihedral angle between two faces of a crystal. It is also the "angle of dip" between faces.
Industry:Mining
