- ASTM StandardD5192 Practice for Collection of Coal Samples from Core
ASTM D121-09a Standard Terminology of Coal and Coke. 2014.
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core sample — n that part of a core of rock or coal obtained so as to represent accurately a thickness of a unit penetrating by drilling. D5192 … Coke&Coal Terminology
lithology — (1) Physical character or a rock, generally as determined megascopically or with the aid of a low power magnifier. (2) The macroscopic study and description of rocks. D5192 … Coke&Coal Terminology
resistivity log — n a measure of the voltage differential of strata along the walls of a borehole when electrical current is passed through the strata. The resistivity log requires a fluidfilled hole to provide a conductive medium constantly between electrodes on… … Coke&Coal Terminology