- 産業: 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 car or carriage designed for the riding of miners to and from the workings. The car body has a low center of gravity to avoid the risk of overturning and is fitted with track brakes and an overspeed clutch. The train set is arranged to brake from the rear to avoid pileup, and the brakes are applied immediately on overspeed from a preset velocity.
Industry:Mining
A car that may be loaded with a block of stone and placed beneath the blades of a gang saw. It is a substitute for the stationary saw bed.
Industry:Mining
A carbide of iron, Fe<sub>23</sub>C<sub>6</sub>, in which all or part of the iron may be replaced by chromium, molybdenum, and/or tungsten, (Fe,Cr,Mo,W)<sub>23</sub>C<sub>6</sub>.
Industry:Mining
A carbohydrate, C<sub>6</sub>H<sub>18</sub>O<sub>5</sub>, hydrolyzed from starch by dilute acids. Used in flotation as depressant.
Industry:Mining
A carbon monoxide detector consisting essentially of a small glass tube filled with a powdered chemical; when air is drawn through it, if any of the gas is present, the powder will change color, its degree of change depending upon the amount of carbon monoxide present. This device is very sensitive and will detect gas as low as 0.01%.
Industry:Mining
A carbonaceous constituent of torbanite, occurring in the form of a solidified clear, jellylike substance, something like solidified dopplerite, but probably of unlike chemical composition.
Industry:Mining
A carbonate rock containing 50% to 90% dolomite. (Leighton & Pendexter, 1962) Compare: calcitic dolomite.
Industry:Mining
A carbonate rock of apparent magmatic origin, generally associated with kimberlites and alkalic rocks. Carbonatites have been variously explained as derived from magmatic melt, solid flow, hydrothermal solution, and gaseous transfer.
Industry:Mining
