- 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 ...
Direction of a horizontal line as measured on an imaginary horizontal circle, the horizontal direction reckoned clockwise from the meridian plane of the observer, expressed as the angular distance between the vertical plane passing through the point of observation and the poles of the Earth and the vertical plane passing through the observer and the object under observation. In the basic control surveys of the United States, azimuths are measured clockwise from south, a practice not followed in all countries. Compare: bearing
Industry:Mining
Discoloration of a metal surface caused by oxidation during thermal treatment.
Industry:Mining
Discontinuous lumps, tubes, pods, and pockets of a sediment, randomly enclosed in a matrix of contrasting textures, and usually formed by the filling of animal borings and burrows).
Industry:Mining
Disintegrator, in which feed particles are entrained in a pressure jet (steam or air) and whirled through a cylindrical chamber with sufficient force to break them.
Industry:Mining
Distinct and self-contained operations that can be studied individually. In mineral processing, unit processes include crushing, grinding, classification, gravity treatment, pulp conditioning, flotation, thickening, leaching, and filtration.
Industry:Mining
