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United States Bureau of Mines
Industry: 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 ...
Graphite formed by pyrolysis of a carbonaceous gas.
Industry:Mining
Gravel deposits intermediate between the creek and bench gravels; their bedrock is slightly above the creek bed, and the surface topography shows no indication of benching.
Industry:Mining
Gravel found in natural deposits, usually more or less intermixed with sand, silt, or clay.
Industry:Mining
Gravel or sand; anything in fine particles.
Industry:Mining
Gravel washed to extract gold. Compare: wash dirt
Industry:Mining
Gravity jig, shaking table, or other device in which suitably ground minerals are separated by gravity during their exposure to a continuous or pulsating current of air.
Industry:Mining
Gravity values after latitude, elevation, and Bouguer corrections have been applied. Used in the gravitational method of geophysical prospecting.
Industry:Mining
Gray, forge pig iron melted in a puddling furnace, then balled, squeezed, and rolled.
Industry:Mining
Greasy or soapy to the touch, as certain magnesian minerals.
Industry:Mining
Greatest depth at which there is free, horizontal communication between two ocean basins.
Industry:Mining