- 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 ...
That part of a wire-rope, side-framed intermediate section that maintains a horizontal plane a fixed distance between wire ropes but does not support the wire ropes. (NEMA, 1961)
Industry:Mining
That part of a wire-rope, side-framed intermediate section that positions the wire rope or ropes with respect to the roof or floor. It may or may not have provisions for mounting a return idler.
Industry:Mining
That part of an electric detonator consisting of twin metal conductors, bridged by fine resistance wire, and surrounded by a bead of igniting compound that burns when the firing current is passed through the bridge wire.
Industry:Mining
That part of an identified resource that meets specified minimum physical and chemical criteria related to current mining and production practices, including those for grade, quality, thickness, and depth. The reserve base is the in-place demonstrated (measured plus indicated) resource from which reserves are estimated. It may encompass those parts of the resources that have a reasonable potential for becoming economically available within planning horizons beyond those that assume proven technology and current economics. The reserve base includes those resources that are currently economic (reserves), marginally economic (marginal reserves), and some of those that are currently subeconomic (subeconomic resources). The term geologic reserve has been applied by others generally to the reserve-base category, but it also may include the inferred-reserve-base category; geologic reserve is not part of this classification system.
Industry:Mining
That part of any resource category that is restricted from extraction by laws or regulations, but otherwise meets all the requirements of reserves.
Industry:Mining
That part of geologic time represented by rocks in which the evidence of life is abundant, i.e. Cambrian and later time. Compare: Cryptozoic
Industry:Mining
That part of geomorphology that deals with the origin, development, and changes of the Earth's surface features or landforms.
Industry:Mining
That part of the bit crown nearest to and/or parallel with the inside wall of an annular or coring bit.
Industry:Mining
That part of the bit crown that comes in contact with the bottom of a borehole. It does not include that part of the bit crown that contacts the walls of the borehole.
Industry:Mining
