SYMPOSIA PAPER Published: 01 January 1978
STP35767S

Field Description and Characterization of Coals Sampled by the Oklahoma Geological Survey, 1971–1976

Source

During a five-year period (1971–1976) 147 channel and 92 core samples representing 15 individual bituminous coal beds in Oklahoma were collected and characterized using megascopic petrographic terms. The average coal contains sparse (< 15 percent) to moderate (15 to 30 percent) and thin (12 to 2-mm) bands of vitrain, and moderately bright attritus. Channel samples are reliable but not as preferable as core samples, because constant depth and width of the sample is difficult to obtain from channel samples. The channel samples are convenient to utilize for standard proximate, calorific, sulfur, ultimate, and ash fusion analyses. Analyses from the same coal face remain to be compared, and examination of lateral and vertical variations of the coal bed character should be undertaken.

Author Information

Friedman, SA
Oklahoma Geological Survey, The University of Oklahoma, Norman, Okla.
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Details
Developed by Committee: D05
Pages: 58–63
DOI: 10.1520/STP35767S
ISBN-EB: 978-0-8031-4730-0
ISBN-13: 978-0-8031-0349-8