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- W13267839 abstract "Based on composition and megascopic description, 26 core samples of the Vermillion Creek coal bed in the Eocene Niland Tongue of the Wasatch Formation from Sweetwater County, Wyoming, were grouped into facies which were correlated between cores. The Vermillion Creek coal samples average 81% vitrinite, 7% exinite, 1% inertinite, and 11% mineral matter on a whole-coal, volume-percent basis. The average organic sulfur content of the bulk coal samples was 4.3 weight percent, which was confirmed by electron microprobe analysis of coal macerals. Variation in the true density of the coal samples was determined to be primarily a function of ash content. The average ash content of 15 weight percent corresponds to an average density of approximately 1.47 g/cm/sup 3/. It is inferred that the ancestral Vermillion Creek peat was deposited in a lacustrine environment. Interstitial water must have been above neutral pH and must have contained concentrations of carbonate and reducible sulfate ions, as shown by interbedded microconcretions of calcite and by high organic sulfur (average 4.5 weight percent) and pyritic sulfur (average 1.84 weight percent) contents of the coal samples." @default.
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- W13267839 date "1987-01-01" @default.
- W13267839 modified "2023-09-26" @default.
- W13267839 title "Petrographic and physical properties of coal and rock samples" @default.
- W13267839 hasPublicationYear "1987" @default.
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