- 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 ...
A term used in the Southwestern United States and Mexico for a region of rough and barren lava flows. The connotation of the term varies according to the locality. Etymol: Spanish, mal pais, bad land.
Industry:Mining
A term used in the southwestern United States for a bluff, height, or hill. Etymol: Sp., high ground.
Industry:Mining
A term used in the Southwestern United States for a hill, esp. a craggy or rocky eminence of moderate height. Etymol: Spanish.
Industry:Mining
A term used in the Southwestern United States for an elongated, gentle swell or rise of the ground (as on a plain), or a rounded, broad-topped, inconspicuous hill. Etymol: Spanish, hillock, rising ground, slope.
Industry:Mining
A term used in the United States for the operation of adding ferromanganese, silicomanganese, or other deoxidizing agent, to an open hearth bath for the immediate stoppage of all oxidizing reactions.
Industry:Mining
A term used in Yorkshire, England, for a coarse-grained or gritty sandstone.
Industry:Mining
A term used locally in the United States for a clay soil that becomes sticky, impervious, and plastic when wet.
Industry:Mining
A term used on the Colorado Plateau to indicate the extension of an orebody along its major axis; the average trend of ore in a particular area, or the regional trend of mineralization over a large area. The local trend of individual orebodies may vary from the regional trend of so-called mineral belts.
Industry:Mining
A term used relative to the density and volume of a porous solid, such as a refractory brick. It is defined as the volume of the solid material plus the volume of the sealed and open pores present.
Industry:Mining
A term used to describe a surface that seems to prefer contact with water to contact with air. In flotation, minerals with a water-avid surface will not float, while those with an airavid surface will. The object of reagent additions in flotation is to form a water-repellent surface on the minerals to be floated and a water-avid surface on the minerals that are not to float (hydrophilic). Compare: air-avid surface
Industry:Mining
