- Industry: 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 method used to drill a borehole wherein water or a mud-laden liquid is circulated through the drill string during drilling.
Industry:Mining
A method used to remove certain impurities from diamond concentrate with a particle size of 0.5 to 1.0 mm. The material, mixed with 10 times its weight of flake caustic soda, is placed in crucibles and put in a furnace where a temperature of 650 degrees C is maintained for 45 min. After furnacing, the material is rinsed to remove the caustic soda and boiled in a glass beaker containing a solution of 1 part hydrochloric acid and 4 parts 1306 water. After further rinsing, the diamond, free from satellites, is dried on a hotplate.
Industry:Mining
A method whereby copper is deposited on a rotating mandrel and later stripped off as a long strip, which is then drawn into wire without recasting.
Industry:Mining
A method, historically important but no longer in use, in which molten pig iron is charged in a Bessemer converter and air is blown through the molten metal to oxidize the impurities, thus making steel. This process is no longer in use.
Industry:Mining
A method, using a soda-lime glass tube partially filled with a dilute solution of hydrofluoric acid, of determining the angle at which a borehole is inclined at any specific point of its course below the collar.
Industry:Mining
A methodology for the analysis of spatially correlated data. The characteristic feature is the use of variograms or related techniques to quantify and model the spatial correlation structure. Also includes the various techniques such as kriging, which utilize spatial correlation models.
Industry:Mining
A metric unit of land area equal to 10,000 m<sub>2</sub>, 100 ares, or 2.471 acres. Abbrev. ha.
Industry:Mining
A micaceous mineral differing from illite because it contains soda in excess of potash. Found in crevices in coal measure shales from Llandebie, South Wales.
Industry:Mining
A micaceous mineral differing from illite because it contains soda in excess of potash. Found in crevices in coal measure shales from Llandebie, South Wales.
Industry:Mining
