- 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 ...
From a strictly scientific point of view, the terms metallic ore and ore deposits have no clear significance. These are purely conventional expressions, used to describe those metalliferous minerals or bodies of mineral having economic value, from which useful metals can be advantageously extracted. In one sense, rock salt is an ore of sodium, and 1960 limestone an ore of calcium, but to term beds of those substances ore deposits would be quite outside of current usage.
Industry:Mining
From Greek anthrax, coal; also, a precious stone; combining forms used commonly to denote substances resembling or derived from coal, or fossils found in coal measures.
Industry:Mining
Front-end equipment fitted to an excavator, comprising a jib with an arm and bucket. Although designed primarily for vertically sided trenching, it is also useful for bulk excavation below track level.
Industry:Mining
Frothing agent used in flotation. Essential oil distilled from leaves of eucalyptus trees.
Industry:Mining
Fuel created by the hydrogenation of coal; the destructive distillation of coal, lignite, or shale at low temperature; and by a recombination of the constituents of water gas in the presence of a suitable catalyst.
Industry:Mining
Fuel-burning devices (usually oil or gas) intended for installation in a wide variety of boilers or furnaces.
Industry:Mining
Full of joints; specif. in mining, full of minute cracks or crevices, as rock.
Industry:Mining
