- 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 ...
As applied to electric blasting caps, the total resistance of the leg wires and the bridge wire.
Industry:Mining
As applied to heat radiation, this term signifies that the surface in question emits radiant energy at each wavelength at the maximum rate possible for the temperature of the surface and, at the same time, absorbs all incident radiation. Only when a surface is a black body can its temperature be measured accurately by means of an optical pyrometer.
Industry:Mining
As applied to metal prices, it is the average over a long term--sometimes a period greater than the life of a mine.
Industry:Mining
As applied to mining, the ability of the market to buy, esp. with regard to the quantity that can be placed in the market, and to the prices that can be obtained.
Industry:Mining
As applied to the current-carrying parts of an electric system, excepting trolley wires, is taken to mean that contact with such parts is prevented by the use of grounded metallic coverings or sheaths.
Industry:Mining
As applied to the degree of luster of a mineral, means those minerals affording a general reflection from the surface, but no image, as talc or chalcopyrite.
Industry:Mining
As applied to the degree of luster of minerals, means those that produce an image by reflection, but not one well-defined, as celestite.
Industry:Mining
As defined by Gilbert (1890), a form of diastrophism that has produced the larger features of the continents and oceans, for example, plateaus and basins, in contrast to the more localized process of orogeny, which has produced mountain chains. Epeirogenic movements are primarily vertical, either upward or downward, and have affected large parts of the continents, not only in the cratons but also in stabilized former orogenic belts, where they have produced most of the present mountainous topography. Some epeirogenic and orogenic structures grade into each other in detail, but most of them contrast strongly. Adj. epeirogenic.
Industry:Mining
As defined by Gilbert (1890), a form of diastrophism that has produced the larger features of the continents and oceans, for example, plateaus and basins, in contrast to the more localized process of orogeny, which has produced mountain chains. Epeirogenic movements are primarily vertical, either upward or downward, and have affected large parts of the continents, not only in the cratons but also in stabilized former orogenic belts, where they have produced most of the present mountainous topography. Some epeirogenic and orogenic structures grade into each other in detail, but most of them contrast strongly. Adj. epeirogenic.
Industry:Mining
