- Industri: Mining
- Number of terms: 33118
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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 type of wire cloth weave; a weave in which the first shute wire crosses over the first and second warp wires, under the third and fourth warp wires, and the second shute wire crosses under the first warp wire, over the second and third warp wires, under the fourth and fifth, etc.
Industry:Mining
A type of zoning, esp. common in clinopyroxenes and chloritoids, in which a core, distinguished from the outer part by a difference of color or optical properties, has a cross section resembling that of an hourglass.
Industry:Mining
A typical association of macerals in coals, occurring in bands at least 50 mu m wide. Microlithotype names bear the suffix "-ite".
Industry:Mining
A typical grout of this class used in Great Britain is bentonite-sodium silicate, in which the silicate is used to render irreversible the thixotropic nature of the bentonite suspension. The gel is stronger than pure bentonite and is permanent, in that local vibration cannot cause it to liquefy again. Setting time can be controlled by adjustment of the chemical content.
Industry:Mining
A typical nitroglycerin powder explosive, which is now supplied only in the sheathed form.
Industry:Mining
A unidirectional steady-state pressure exerted upon a surface exposed to an acoustic wave. Such a steady pressure is usually quite small in magnitude and is really observable only in the presence of very intense sound waves.
Industry:Mining
A unique winding arrangement where two winding engines are arranged alongside the shaft, the shaft collar forming a common foundation. The ropes are practically vertical and there is less rope oscillation.
Industry:Mining
A unit for measuring the energy of a nuclear explosion. A 1-kiloton explosion releases energy equal to that in the explosion of 1,000 st (907 t) of TNT. Abbrev. kton.
Industry:Mining
A unit of 1 ft<sub>3</sub>/s (0.0283 m<sub>3</sub>/s). Usually abbreviated to cusec.
Industry:Mining
