- 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 ...
Activities such as extracting ore, building structures, and otherwise developing a mining claim after ore is discovered.
Industry:Mining
Adding material in excess of the capacity of the equipment used for processing.
Industry:Mining
Applied to the luster of certain minerals, usually on crystal faces parallel to a good cleavage, the luster resembling that of pearls.
Industry:Mining
Describes rounded to spherical, commonly banded, textures within minerals or rocks; e.g., orbicular diorite.
Industry:Mining
Lying or formed at the base of a mountain or mountain range; e.g., a piedmont terrace or a piedmont pediment.---n. An area, plain, slope, glacier, or other feature at the base of a mountain; e.g., a foothill or a bajada. In the United States, the Piedmont is a plateau extending from New Jersey to Alabama and lying east of the Appalachian Mountains. Etymol: from Piemonte, a region of NW Italy at the foot of the Alps.
Industry:Mining
Of alkali, or any strongly basic substance, such as a hydroxide or carbonate of an alkali metal (e.g., sodium, potassium).
Industry:Mining
Of contact metamorphism, or the process taking place in rocks at or near their contact with a body of igneous rock. Metamorphic changes are effected by the heat and materials emanating from the magma and by some deformation connected with the emplacement of the igneous mass.
Industry:Mining
