- 行业: Mining
- Number of terms: 33118
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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 ...
The ordinary luster of metals. When feebly displayed, it is termed submetallic. Gold, iron pyrites, and galena have a metallic luster, e.g., while chromite and cuprite have a submetallic luster.
Industry:Mining
The ordinary process of puddling in which a furnace is lined with material rich in oxide of iron.
Industry:Mining
The ordinary tool used by machinists for removing the outer skin and generally for heavy cuts on cast iron, wrought iron, and steel.
Industry:Mining
The organized body of knowledge concerned with the physical characteristics of soil and with the methods employed in their determinations.
Industry:Mining
The orientation and possible deformation of crystals with their long axes in the direction of plastic flow in metamorphic rocks.
Industry:Mining
The orientation of an underground survey, using the Earth's magnetic field.
Industry:Mining
The orientation of the constituent minerals within the rocks of the Earth's crust conforming to the Earth's magnetic field as it existed at the time the strata were deposited.
Industry:Mining
