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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 ...
A reject gate in the form of a rotary (or star) valve.
Industry:Mining
A rejected syn. for ilvaite.
Industry:Mining
A related sequence of soil profile types created by changes from one drainage condition to another. These changes are usually transitional.
Industry:Mining
A relationship between liquid and crystals during crystallization, esp. during fractionation, whereby crystals and liquid change composition in response to changing temperature and pressure. Compare: reaction series
Industry:Mining
A relative term applied to sedimentary beds variously defined as less than 1 ft (30 cm) to less than 0.4 in (1 cm) in thickness; specif. said of a bed whose thickness is in the range of 2 to 24 in (5 to 60 cm), a bed less than 5 cm but more than 1 cm thick being very thinbedded. Compare: tight-bedded; thick-bedded.
Industry:Mining
A relative term applied to sedimentary beds variously defined as more than 2.5 in (6.4 cm) to more than 40 in (100 cm) in thickness; specif. said of a bed whose thickness is in the range of 2 to 4 ft (60 to 120 cm), a bed greater than 120 cm being very thick-bedded. Compare: tight-bedded; thin-bedded.
Industry:Mining
A relative term as applied to ceramic products based on the water absorbing characteristics; i.e., brick, tile, etc., which absorb water in excess of that given by the specifications would be described as nonvitreous.
Industry:Mining
A relatively flat diamond of table cut.
Industry:Mining
A relatively large, slow change in part of the Earth's magnetic field caused by the internal state of the planet and having a form roughly to be expected from a simple, but not quite uniformly polarized sphere.
Industry:Mining
A relatively new underground transport system in which the carriages, or buckets, are suspended from, and run along, a single continuous overhead rail or taut wire rope. The monorail is used in coal mines to transport supplies to the workings. It may be installed alongside the gate conveyor and worked by endless or main rope.
Industry:Mining