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United States Bureau of Mines
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 ...
Eng. Shelly pink limestone in the Corbula Beds of the Purbeck Beds at Durlston Bay. So called because it is full of the small gastropods Pachychilus manselli that resemble eyes when seen in transverse section. Compare: rabbit-eye
Industry:Mining
Eng. Small refuse stones used for the inside of walls; Northamptonshire and Worcestershire.
Industry:Mining
Eng. Small veins that do not afford shoulder room.
Industry:Mining
Eng. Small, dirty coal suitable for brick kilns and similar purposes.
Industry:Mining
Eng. Soft, black, bituminous shale with a white efflorescence on exposure. A hard calcareous band near the base, Middle Purbeck Beds, Swanage.
Industry:Mining
Eng. Soft, loamy clay suitable for brickmaking, as opposed to stiffer clay below, which is suitable for making tiles and drainpipes. Kimeridge clay, Brill, Buckinghamshire.
Industry:Mining
Eng. Stone in the roof of a coal seam; roof stone.
Industry:Mining
Eng. Stone of suitable thickness for shaping into a tile stone without frosting; occurs in Stonesfield slate series and Chipping Norton limestone of the Cotswolds.
Industry:Mining
Eng. Surface-weathered ironstone or oolite; rottenstone; in Northamptonshire, Rutland, and Lincolnshire. Also spelled keale.
Industry:Mining
Eng. That stroke of a Cornish pump that lifts the water at the bottom or drawing lift.
Industry:Mining
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