- المجال: 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 ...
An arsenic-deficient variety of nickel-skutterudite. Also spelled cloanthite.
Industry:Mining
An arsenic-deficient variety of nickel-skutterudite. Also spelled cloanthite.
Industry:Mining
An articulated yielding arch, provided by a single bolted joint at the crown. The joint is so designed that the bolt is not subjected to shear stress. The yield element is a rectangular box in which the foot of the arch rests. The resistance to yield is by means of a piece of crushing timber placed in the box from the bottom before setting.
Industry:Mining
An artificial channel or passage for water used in mining. Compare: mining ditch
Industry:Mining
An artificial mound of rocks, stones, or masonry, usually conical or pyramidal, used in surveying to aid in the identification of a point or boundary.
Industry:Mining
An artificial orthorhombic high-temperature polymorph of KAlSiO<sub>4</sub>.
Industry:Mining