- 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 ...
Any protozoan belonging to the subclass Sarcodina, order Foraminifera, characterized by the presence of a test (shell) of one to many chambers composed of secreted calcite (rarely silica or aragonite) or of agglutinated particles. Most foraminifers are marine but freshwater forms are known. They are important microfossils in well logging. Range, Cambrian to present.
Industry:Mining
Any purification or grinding of the raw dense-medium solids to make them suitable for use.
Industry:Mining
Any radiation that directly or indirectly displaces electrons from the outer domains of atoms; e.g., alpha, beta, or gamma radiation.
Industry:Mining
Any rock derived from preexisting rocks by mineralogical, chemical, and/or structural changes, essentially in the solid state, in response to marked changes in temperature, pressure, shearing stress, and chemical environment, generally at depth in the Earth's crust.
Industry:Mining
Any rock naturally impregnated with asphalt. It is generally sandstone or limestone.
Industry:Mining
Any rock structure caused by shearing, e.g., crushing, crumpling, or cleavage.
Industry:Mining
