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United States Bureau of Mines
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 ...
Soft pulverulent forms of calcite found in caves, or as an efflorescence. See: agaric mineral
Industry:Mining
Soft tenacious clay floor of coal seams.
Industry:Mining
Soft turf containing lumps of ore, Derbyshire, U.K.
Industry:Mining
Soft, compact, mixed claylike material with a flat, even fracture, found most often in volcanic terrains. Not recommended. See: wacke
Industry:Mining
Soil composed of boulder clays, moraines, etc., which were formed by the action of ice during the Pleistocene age.
Industry:Mining
Soil creep resulting from frost action.
Industry:Mining
Soil developed under conditions of poor drainage, resulting in reduction of iron and other elements and in gray colors and mottles. The term is obsolete in the United States.
Industry:Mining
Soil enriched in alumina and iron in regions of high temperature and humid climate that are marked by forest cover. Compare: pedocal
Industry:Mining
Soil enriched in calcium carbonate, accumulating in regions of low temperature, low rainfall, and prairie vegetation. Compare: pedalfer
Industry:Mining
Soil in which small pellets of iron oxide occur or are forming.
Industry:Mining
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