- 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 ...
A highly qualified mining engineer with a wide background of experience in this particular field. The engineer may be asked by a client or company to examine a property and prepare a report and evaluation or to give advice or expert evidence in cases of alleged subsidence damage.
Industry:Mining
A highly reactive metallic element of the alkali group; it is soft, light, and silvery. Symbol, K. Occurs abundantly in nature; obtained from the following minerals: sylvite, carnallite, langbeinite, and polyhalite. The greatest demand is for use in fertilizers.
Industry:Mining
A highly refractory material, produced by the fusion of chromite, bauxite, and magnesite, in an open electric arc furnace.
Industry:Mining
A highly serpentinized porphyritic peridotite, commonly brecciated, which occurs in vertical pipes, dikes, and sills. It is the principal original environment of diamond, but only a small percentage of the known kimberlite occurrences are diamondiferous. The name is derived from Kimberley, South Africa.
Industry:Mining
A highly siliceous hematite containing only a trace of phosphorus, but high in potash.
Industry:Mining
A high-quality, biodegradable detergent, obtained from lignite tar, which is derived from carbonizing coal at low temperatures.
Industry:Mining
A high-speed device for particle size analysis designed by W.H. Coulter and now made by Coulter Electronics, Inc., Chicago. A suspension of the particles flows through a 759 small aperture having an immersed electrode on either side with particle concentration such that the particles traverse the aperture substantially one at a time. Each particle, as it passes, displaces electrolyte within the aperture, momentarily changing the resistance between the electrodes and producing a voltage pulse of magnitude proportional to practical volume. The resultant series of pulses is electronically amplified, scaled, and counted.
Industry:Mining
A high-speed tractor winch having one to three drums under separate control. Used to operate bulldozers and towed equipment.
Industry:Mining
