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United States Bureau of Mines
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 location of a tract of land for mineral-bearing or other valuable deposits upon or within it that are not found within lodes or veins in rock in place; a claim of a tract of land for the sake of the loose deposits on or near its surface.
Industry:Mining
A location which provides local monitoring and control, and provides a communications interface between a sensor and the trunk connected to a central station computer.
Industry:Mining
A location which provides local monitoring and control, and provides a communications interface between a sensor and the trunk connected to a central station computer.
Industry:Mining
A lock gate that is raised vertically to open.
Industry:Mining
A locked spirit-burning lamp fitted with an internal relighting device.
Industry:Mining
A lode containing valuable minerals.
Industry:Mining
A lode filled with spar, e.g., fluorspar, calcspar, or heavy spar.
Industry:Mining
A lode in which the ore is mixed with gossan or flucan.
Industry:Mining
A lode may be divided into three main zones: (1) unaltered ore at depth; (2) gossan or altered surface portion of the lode, which contain native metals, oxides, and oxysalts that result from weathering of the ore; and (3) secondary enrichment which lies between the first two zones, where interaction between waters from the gossan and the unaltered ore have produced new materials, often of considerable economic value.
Industry:Mining
A lode not containing valuable minerals in paying quantity.
Industry:Mining
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