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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 ...
York. One vein crossing another at an acute angle.
Industry:Mining
York. Ribs and posts of coal left for second working.
Industry:Mining
York. See: horn coal
Industry:Mining
gor
York. Sticky, dirty clay. Also spelled gore.
Industry:Mining
York. The heading that is driven slightly to the rise from the shaft.
Industry:Mining
York. The rise side of the coal in North Yorkshire.
Industry:Mining
York. The working places in ironstone quarries.
Industry:Mining
York. Undergoing disturbance due to weight of the roof. A settling of the mine roof.
Industry:Mining
York. Usually a stone bind or sandstone with rootlets.
Industry:Mining
Zinc exceeding 99.9% purity, produced by electrodeposition.
Industry:Mining
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