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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 ...
Pertaining to a type of crystalloblastic texture in a metamorphic rock in which the essential mineral constituents are of two or more distinct sizes. Compare: crystalloblastic; homeoblastic.
Industry:Mining
Pertaining to an idioblast of a metamorphic rock. It is analogous to the term idiomorphic in igneous rocks.
Industry:Mining
Pertaining to an oolite, or to a rock or mineral made up of ooliths; e.g., an oolitic ironstone, in which iron oxide or iron carbonate has replaced the calcium carbonate of an oolitic limestone.
Industry:Mining
Pertaining to anthracite.
Industry:Mining
Pertaining to clay or clay minerals; e.g., argillic alteration in which certain minerals of a rock are converted to minerals of the clay group. Compare: argillaceous
Industry:Mining
Pertaining to contact metamorphism that takes place within the cooling intrusive rock; resulting from the reaction of the wall rock upon the peripheral portion of an intrusion.
Industry:Mining
Pertaining to geochronology.
Industry:Mining
Pertaining to ground water.
Industry:Mining
Pertaining to material deposited in a swamp or marsh environment. Compare: paludal
Industry:Mining
Pertaining to or characterized by the presence of tremolite, as tremolitic marble.
Industry:Mining
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