- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
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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 ...
Term taking the place of hydrometallurgy; embraces leaching (acid, alkaline, and pressure), ion exchange, solvation precipitation, and calcination.
Industry:Mining
Term to distinguish true turquoise from odonotolite (bone turquoise).
Industry:Mining
Term used in dredging operations when the digging spud is dropped, the other spud is raised, and the dredge is ready to begin a new cut.
Industry:Mining
Term used in the dimension stone industry for ends of blocks that are used as byproducts.
Industry:Mining
Term used in the slate industry to include all forms of structural slate used in exterior or interior construction.
Industry:Mining
Term used primarily by soil and foundation testing engineers for the equipment customarily called a drill rod by drillers and miners.
Industry:Mining
Term used to describe a microlithotype consisting mainly of the exinite group of macerals and esp. of sporinite. Contains not less than 95% of exinite (liptinite) with thickness (bands) of exinite greater than 50 mu m recorded as liptite (sporite). Liptite (sporite) is a rare constituent of hard coal. Compare: vitrite
Industry:Mining
Term used to describe the ability of a system either to amplify or to suppress an input vibration. It is the ratio of the response amplitude of the system in steady-state forced vibration to the excitation amplitude. The ratio may be between forces, displacements, velocities, or accelerations.
Industry:Mining
