- 行业: Mining
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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 ...
Also known as the modulus of rigidity, it equals the shear stress divided by the shear strain.
Industry:Mining
Alteration of a recently crystallized igneous rock by its own last water-rich liquid fraction, trapped within the rock, generally by an impermeable chilled border. Compare: autopneumatolysis; autometamorphism.
Industry:Mining
Alteration of a rock or crystallization of minerals by gaseous emanations derived from solidifying magma. Adj: pneumatolytic.
Industry:Mining
Alteration of a wave proceeding from deep water into shallow water. The wavelength decreases and the wave height increases.
Industry:Mining
Alteration of rock by material that is added, removed, or exchanged by water solutions, without the influence of high temperature and pressure.
Industry:Mining
Alteration of rock by material that is added, removed, or exchanged by water solutions, without the influence of high temperature and pressure.
Industry:Mining
Alteration of rock by material that is added, removed, or exchanged by water solutions, without the influence of high temperature and pressure.
Industry:Mining
Alteration of rocks or minerals by the reaction of hydrothermal water with preexisting solid phases.
Industry:Mining
Altered cordierite, an orthorhombic mineral, Mg<sub>2</sub>Al<sub>4</sub>Si<sub>5</sub>O<sub>18</sub>.
Industry:Mining
Altered cordierite, an orthorhombic mineral, Mg<sub>2</sub>Al<sub>4</sub>Si<sub>5</sub>O<sub>18</sub>.
Industry:Mining