- 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 ...
An explosive breaking of coal or rock in a mine due to pressure. In coal mines bursts may or may not be accompanied by a copious discharge of methane, carbon dioxide, or coal dust.
Industry:Mining
An explosive charge that is not properly detonated and burns and may eventually result in a detonation at some nondetermined time.
Industry:Mining
An explosive composed of liquid nitrogen tetroxide mixed with carbon disulfide or other liquid combustible, in the proportion of three volumes of the former to two of the combustible.
Industry:Mining
An explosive compound consisting of cellulose nitrate and a restrainer, such as vaseline, used chiefly as a propellant.
Industry:Mining
An explosive compound of mercury, HgC<sub>2</sub>N<sub>2</sub>O<sub>2</sub>, that is employed for the caps or exploders, by means of which charges of gunpowder, dynamite, etc., are fired.
Industry:Mining
An explosive compound produced by the action of nitric acid on starch or woody fiber. Resembles guncotton.
Industry:Mining
An explosive compounded of ammonium carbonate, nitrated wood or charcoal, and saltpeter.
Industry:Mining
An explosive consisting of 70% ammonium nitrate, 25% trinitrotoluol, and 5% nitroglycerin.
Industry:Mining
An explosive consisting of tan bark, sawdust, or other vegetable fiber, or resins, such as gamboge, impregnated with a nitrate or chlorate and mixed with gunpowder.
Industry:Mining
An explosive contained in a case so shaped as to concentrate the power of the explosion in one small area. Shaped charges are used in armor-penetrating weapons, such as the bazooka, for tapping open-hearth furnaces, for cutting deep-well linings, and for breaking boulders.
Industry:Mining
