- 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 ...
A granular rock that is composed essentially of an impure mixture of corundum, magnetite, and spinel, and that may be formed by magmatic segregation or by metamorphism of highly aluminous sediments.
Industry:Mining
A granular rock that is composed essentially of an impure mixture of corundum, magnetite, and spinel, and that may be formed by magmatic segregation or by metamorphism of highly aluminous sediments.
Industry:Mining
A granular rock that is composed essentially of an impure mixture of corundum, magnetite, and spinel, and that may be formed by magmatic segregation or by metamorphism of highly aluminous sediments.
Industry:Mining
A granular, more or less banded rock containing grunerite, other ferruginous silicates, and magnetite; produced by metamorphism of ferruginous cherts, such as taconite and jaspillite.
Industry:Mining
A graph designed to show the boundaries of the fields of stability of the various phases of a system. The coordinates are usually two or more of the intensive variables temperature, pressure, and composition, but are not restricted to these.
Industry:Mining
A graph designed to show the boundaries of the fields of stability of the various phases of a system. The coordinates are usually two or more of the intensive variables temperature, pressure, and composition, but are not restricted to these.
Industry:Mining
A graph showing stage, flow, velocity, or other characteristics of water with respect to time. A stream hydrograph commonly shows rate of flow; a ground-water hydrograph, water level or head.
Industry:Mining
A graph showing the distribution of light in a flame safety lamp obtained by plotting the values obtained at intervals of 10 degrees around a full circle.
Industry:Mining
A graph that shows a relation between the specific gravity of fractions of a coal sample floated in liquids of step-by-step increased density, and the percentage of ash in each such fraction.
Industry:Mining
A graph that shows a relation between the specific gravity of fractions of a coal sample floated in liquids of step-by-step increased density, and the percentage of ash in each such fraction.
Industry:Mining
