- 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 ...
Cartridges of explosive lowered into position in drill hole blasting at the end of a length of strong twine (not wire). As detonating cord is normally used for ignition in drill holes, the primed cartridge is lowered first in each charge by using a detaching hook or a length of twine, and it is followed by the remainder of the charge.
Industry:Mining
Case carburizing, using a solid carburized medium, followed by a hardening treatment.
Industry:Mining
Casing used to shut off water-bearing formations encountered in the drilling of a well.
Industry:Mining
Cassiterite occurring as waterworn pebbles in alluvial or placer deposits. Compare: lode tin
Industry:Mining
Cassiterite too finely ground to be readily concentrated by the use of gravity treatment. Usually associated with hydrated iron.
Industry:Mining
Cast-iron wheels, with projections, to which are bolted the staves or laggings forming the surface for the hoisting cable to wind upon. The outside rings are flanged, to prevent the cable from slipping off the drum.
Industry:Mining
Catalytic granules consisting of finely divided manganese dioxide mixed with copper oxide and a small quantity of silver oxide, and used in gas mask cannisters to remove carbon monoxide by oxidizing it to carbon dioxide. With the development of Hopcalite, the problem of providing adequate protection against carbon monoxide poisoning was solved.
Industry:Mining
