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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 ...
Flow of a liquid in which layers glide over one another. Compare: laminar flow
Industry:Mining
Flow of water over the top of a dam or embankment.
Industry:Mining
Fluffy, flaky salt particles due to wind and wave action, which produce a mist over the surface of solar salt ponds. The mist contains minute particles of salt, which are driven to the lee shore and deposited as a scale.
Industry:Mining
Flushing in which the water enters the borehole around the rod and issues upwards through the rod.
Industry:Mining
Flushing in which the water rises along the rod on its outer side; i.e., between the walls of the borehole and the rod, and with such a velocity that the broken rock fragments are carried up by this water current.
Industry:Mining
Flutter that may occur in a structure exposed to wind force. This form of instability can be guarded against by suitable design.
Industry:Mining
Folding accompanied by slippage along shear planes at an angle to the bedding or older foliation.
Industry:Mining
Folding in incompetent beds that offer so little resistance to deformation that they assume any shape impressed upon them by the more rigid rocks surrounding them or by the general stress pattern of the deformed zone. Compare: ptygmatic folding
Industry:Mining
Folding in which the strata remain parallel or concentric, without structural discordances between them, and in which there are no sudden changes in the form of the folds at depth. Ant: disharmonic folding.
Industry:Mining
Folding in which there is an abrupt change in fold profile when passing from one folded surface or layer to another. It is characteristic of rock layers that have significant contrasts in viscosity. An associated structure is decollement. Ant: harmonic folding. Compare: decollement
Industry:Mining