- المجال: 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 ...
A prefix that, when used with the name of a sedimentary or igneous rock, indicates that the rock has been metamorphosed, e.g., metabasalt. Compare: cata-; meso-.
Industry:Mining
A prefix to indicate that the rock belongs to the deepest zone of metamorphism, which is characterized by very high temperature, hydrostatic pressure, and relatively low shearing stress. Compare: epi-; meta-; meso-.
Industry:Mining
A prefix to the name of a mineral species or group to indicate monoclinic symmetry as opposed to "ortho" indicating orthorhombic symmetry. See the root mineral name.
Industry:Mining
A preliminary printed statement describing a business or other enterprise, and distributed to prospective buyers, investors, or participants, giving detailed information concerning the company's business and financial standing. Common in mining.
Industry:Mining
A press consisting of rolls of unequal diameter, revolving one within the other and in the same direction.
Industry:Mining
A press for compacting meal powder before granulating into gunpowder.
Industry:Mining
A press handling two operations each revolution. It carries two rams, one inside the other, so actuated that one motion immediately follows the other.
Industry:Mining
A press in which pressure is applied by the mating of one or more pairs of indented rolls of equal diameter, revolving in opposite directions.
Industry:Mining
A press in which pressure is applied by the mating of one or more pairs of indented rolls of equal diameter, revolving in opposite directions.
Industry:Mining
