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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 ...
Ore screening machine whose screen is woven of steel wire and stretched tightly on a metal frame. Near the center of the screen is fastened the vibrating element of a highspeed vibrator, which produces a vibratory motion at right angles to the plane of the screen.
Industry:Mining
Ore shoot or orebody.
Industry:Mining
Ore shoots that occur adjacent to certain favorable wall rocks that presumably influenced deposition from the mineralizing fluids.
Industry:Mining
Ore that has been exposed on three sides and for which tonnage and quality estimates have been made; ore essentially ready for mining. Compare: proved reserve assured mineral.
Industry:Mining
Ore that has remained practically unchanged from the time of original formation.
Industry:Mining
Ore that is too large to be handled efficiently by the machine into which it is fed.
Industry:Mining
Ore that yields a single metal. Compare: complex ore
Industry:Mining
Ore, or other mineral product, becomes personal property when detached from the soil in which it is imbedded.
Industry:Mining
Ores containing from 0.18% to 1.0% phosphorus.
Industry:Mining
Ores of the precious metals (chiefly gold) containing tellurium.
Industry:Mining
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