- 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 ridge or mound of boulders, gravel, sand, and mud found along or in a stream channel at places where decrease in velocity causes deposition of sediment.
Industry:Mining
A right to enter upon and occupy a specific piece of ground for the purpose of carrying out work in a tunnel and extracting waste rock or earth necessary to complete the tunnel, and making such use after completion as may be necessary to work the mining ground or lode owned by the party running the tunnel. By implication, the grant of such a right carries with it every incident and appurtenant thereto, including the right to dump the waste rock at the mouth of the tunnel on the land owned by the grantor at the time of the conveyance of the tunnel right, such right or easement being necessary for the full and free enjoyment of the tunnel right.
Industry:Mining
A rigid frame hinged at both supports. It may have an arched or rectangular form.
Industry:Mining
A rind of one mineral surrounding another and presumably crystallized by reaction of the core mineral with surrounding fluids. Compare: corrosion border
Industry:Mining
A ring about a large excavated area, evidenced by distortion of the openings near the main excavation. Shear cracks appear and minor slabbing of the rock takes place.
Industry:Mining
A ring bearing that carries the radial load of a shaft. If a ball bearing, the balls are held in a race and run on a hard band around the shaft.
Industry:Mining
A ring on the head block or top of a drill pole, derrick, or tripod to which guys are attached.
Industry:Mining
A ringlike sleeve, the inside diameter of which is the same as a specific set outside diameter of a diamond bit or reaming shell; it is used to check the set diameter of a bit or reaming shell.
Industry:Mining
A ringlike sleeve, the inside diameter of which is the same as a specific set outside diameter of a diamond bit or reaming shell; it is used to check the set diameter of a bit or reaming shell.
Industry:Mining
