- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
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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 ...
Constituent of torbanite, consisting of birefringent pale yellow microscopic crushed spheres. Compare: humosite matrosite; retinosite.
Industry:Mining
Constituents are the petrographic entities of the attritus that are recognizable in thin sections only by the microscope. The following constituents may be distinguished in coals: translucent humic degradation matter; brown or semitranslucent matter; opaque matter (granular, massive); resins and resinous matter; spores and pollen; cuticles and cuticular matter; algae and algae matter.
Industry:Mining
Construction program for major engineering works, set out in graphic form. Down the vertical axis in sequence are set out the items concerned. The abscissa shows the period covered in days, or weeks, and the period allowed for each item marked by a horizontal line. The chart displays the interrelation between the items, and aids in ensuring that no item is so delayed as to impede progress on a later one that depends on it.
Industry:Mining
Contact metamorphism in which the composition of a rock has been altered by introduced gaseous magmatic material.
Industry:Mining
Contact method of catalyzing SO<sub>2</sub>to SO<sub>3</sub>in two stages, using first iron oxide and second platinized asbestos as catalysts.
Industry:Mining
Containing a random variable; word used to describe a system (e.g., sampling method) that has in it an element of randomness.
Industry:Mining
