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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 ...
Derb. A sort of coarse stopping, made of small boughs of trees, and placed in back of shaft timbers to prevent rock from falling.
Industry:Mining
Derb. A wooden landmark, placed to indicate possession of mining ground. Also spelled stowse.
Industry:Mining
Derb. An exclamation by the banksperson down a shaft to the bottomer, when workers are about to descend the shaft, to let them know that they are not to send up a load of coal, but merely the empty rope or chain.
Industry:Mining
Derb. Clay ironstone in beds or seams.
Industry:Mining
Derb. Following a vein along the surface by means of cast holes or prospect pits.
Industry:Mining
Derb. Hollows in a vein.
Industry:Mining
Derb. Laminated carbonaceous shale.
Industry:Mining
Derb. Lead-ore dust. A variation of smeddum.
Industry:Mining
Derb. One who contracts to mine lead ore at a fixed rate; a miner.
Industry:Mining
Derb. The main haulage road in a mine.
Industry:Mining
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