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United States Bureau of Mines
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 ...
A graphical expression of the functional relation between the velocity function and the times observed in the seismic method of geophysical exploration. It permits time increments to be converted to corresponding depths.
Industry:Mining
A graphical method for finding the lost part of a vein on the other side of a fault.
Industry:Mining
A graphical representation of currents, usually by 1 degrees quadrangles, using arrows of different lengths for the cardinal and intercardinal compass points to show resultant drift and frequency of set for a given period of time.
Industry:Mining
A graphical representation of the size analysis of a mixture of particles of various sizes, using an ordinary, logarithmic, or other scale.
Industry:Mining
A graphical representation of the stresses acting on the various planes at a given point.
Industry:Mining
A graphical representation of the temperature and composition limits of phase fields in an alloy system as they actually exist under the specific conditions of heating or cooling (synonymous with phase diagram). A constitution diagram may be an equilibrium diagram, an approximation to an equilibrium diagram, or a representation of metastable conditions or phases. Compare: equilibrium diagram.
Industry:Mining
A grass-green to brown nickel arsenate, perhaps Ni<sub>17</sub>As<sub>6</sub>O<sub>32</sub>; an analysis gave 48.77% nickel. It is an oxidized vein mineral.
Industry:Mining
A grass-green variety of spinel containing copper.
Industry:Mining
A grass-green, hydrated, basic copper hydrate and sulfate, Cu<sub>3</sub>(OH)<sub>4</sub>SO<sub>2</sub>.6H<sub>2</sub>O .
Industry:Mining
A grass-green, hydrated, basic copper hydrate and sulfate, Cu<sub>3</sub>(OH)<sub>4</sub>SO<sub>2</sub>.6H<sub>2</sub>O .
Industry:Mining