- 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 ...
The process of driving off carbon dioxide from a carbonate mineral, e.g., magesite, MgCO<sub>3</sub>, to form periclase, MgO .
Industry:Mining
The process of extracting the oxygen content of a dissolved oxide, or of removing dissolved oxygen, with the aid of a reducing agent.
Industry:Mining
The process of formation of, introduction of, or replacement by pegmatite.
Industry:Mining
The process of grinding pieces of flat sheet glass (or pressed blanks) to the correct form of the lens. Cast-iron tools of the correct curvature, supplied with a slurry of abrasive and water, are used.
Industry:Mining
The process of hardening steel by quenching from the austenitizing temperature at a rate slower than the critical cooling rate for the particular steel--resulting in incomplete hardening and the formation of one or more transformation products in addition to or instead of martensite.
Industry:Mining
The process of hydrothermal alteration by which magnesium-rich silicate minerals (e.g., olivine, pyroxenes, and/or amphiboles in dunites, peridotites, and/or other ultrabasic rocks) are converted into or replaced by serpentine minerals.
Industry:Mining
