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United States Bureau of Mines
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 ...
Coal in which the attritus may contain a large proportion of resinous matter. Coals of this type are found more often among the younger coals.
Industry:Mining
Coal made more suitable for burning by a process that forms it into a regular square- or oval-shaped piece.
Industry:Mining
Coal measures without workable seams.
Industry:Mining
Coal microlithotype consisting of a single maceral; i.e., fusite or vitrite.
Industry:Mining
Coal mining that consists of driving cross-measure drifts and developing of the seams. The roads in the seam are equipped with conveyors for transporting coal, and locomotives may be used in the cross-measure drifts when these are horizontal or nearly so. Semihorizon mining may include the longwall-retreating method.
Industry:Mining
Coal occurring in a thin seam or bed.
Industry:Mining
Coal or other dust particles carried in suspension in the air by currents and eddies.
Industry:Mining
Coal produced by a mechanical cleaning process (wet or dry).
Industry:Mining
Coal properties determining the amenability of a coal to improvement in quality by mechanical cleaning.
Industry:Mining
Coal received at a preparation plant from a source other than that to which the plant is attached.
Industry:Mining