- 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 ...
Any of a number of methods of converting observed seismic arrival time values to the dip of a reflector; most commonly the conversion of delta T values to dip values by a conversion factor based upon the geometry of the seismic array and approximate seismic propagational velocity.
Industry:Mining
Any of a series of explosive mixtures containing potassium chlorate, together with tannin, powdered nutgalls, or cream of tartar. Used for blasting, shells, etc.
Industry:Mining
Any of several acids in a series related to sulfurous and thiosulfuric acid.
Industry:Mining
Any of several arrangements of hoisting tackle; usually one with a single and a double block.
Industry:Mining
Any of several commercially available, fire-resistant fluids that are water-in-oil emulsions and can be substituted for flammable hydraulic fluids by users of large machinery, whether the equipment is operated underground or on the surface.
Industry:Mining
Any of several effects of a substance upon light. Refractive index, double refraction, (and its strength, birefringence), dispersion, pleochroism, and color are gemmologically the most important optical properties.
Industry:Mining
Any of several explosives used for commercial purposes. The consistency is such that the explosive can be shaped by moderate pressure to fill a drill hole. The difference between plastic and semiplastic form is primarily dependent on the difference in equipment which has been found necessary in manufacturing cartridges of the explosive. The viscosity of the plastic type makes it possible to produce cartridges by a process of extrusion through tubes.
Industry:Mining
Any of several gases that enter a mine atmosphere from pores, as feeders and blowers, and also from blasting operations. These gases pollute the mine air chiefly by the absorption of oxygen by the coal, and in addition by chemical combination of oxygen with carbonaceous matter, for example, from decaying timbers, rusting of iron rails, burning of lights, and breathing of humans and animals. These gases include oxygen, nitrogen, carbon dioxide, and methane.
Industry:Mining
Any of several kinds of combined pump and steam engine. It may be operated independently of the engine; used to supply water to a boiler, drain sumps, etc.
Industry:Mining
Any of several liquids--such as tetrabromethane, ethylene dibromide, pentachlorethane, and trichlorethylene--that are used in the DuPont mineral separation process.
Industry:Mining
