- المجال: 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 pitted, irregular bedding surface found only in certain carbonate sediments, characterized by a black manganiferous stain, and presumed to result from cessation of lime deposition and from submarine solution or resorption of some of the previously deposited materials.
Industry:Mining
A pitted, irregular bedding surface found only in certain carbonate sediments, characterized by a black manganiferous stain, and presumed to result from cessation of lime deposition and from submarine solution or resorption of some of the previously deposited materials.
Industry:Mining
A place at the surface of a mine where drained combustible gases are monitored or their heat content is ascertained.
Industry:Mining
A place for breaking ore with a 4- to 5-lb (1.8- to 2.3-kg) sledge hammer.
Industry:Mining
A place formed in the side of an underground haulageway in which a worker can take refuge during the passing of a train, or when shots are fired.
Industry:Mining
A place formed in the side of an underground haulageway in which a worker can take refuge during the passing of a train, or when shots are fired.
Industry:Mining
A place in a mine at which safety lamps can be relighted under controlled conditions.
Industry:Mining
A place in a transmission or engine to which a shaft can be attached so as to drive an outside mechanism.
Industry:Mining
A place of origin; specif. the area from which the constituent materials of a sedimentary rock or facies are derived. Also, the rocks of which this area is composed. Compare: distributive province
Industry:Mining
