Application of computer graphics to generate coal resources of the Cache coal bed, Recluse geologic model area, Campbell County, Wyoming

Schneider, G. B.; Crowley, S. S.; Carey, M. A.

Abstract:

Low-sulfur subbituminous coal resources have been calculated, using both manual and computer methods, for the Cache coal bed in the Recluse Model Area, which covers the White Tail Butte, Pitch Draw, Recluse, and Homestead Draw SW 7 1/2 minute quadrangles, Campbell County, Wyoming. Approximately 275 coal thickness measurements obtained from drill hole data are evenly distributed throughout the area. The Cache coal and associated beds are in the Paleocene Tongue River Member of the Fort Union Formation. The depth from the surface to the Cache bed ranges from 269 to 1,257 feet. The thickness of the coal is as much as 31 feet, but in places the Cache coal bed is absent. Comparisons between hand-drawn and computer-generated isopach maps show minimal differences. Total coal resources calculated by computer show the bed to contain 2,316 million short tons or about 6.7 percent more than the hand-calculated figure of 2,160 million short tons.

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USGS Numbered Series

ProdID:

11037

Citation Author:

Schneider, G. B.; Crowley, S. S.; Carey, M. A.

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ENGLISH

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17 p., ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

Citation Series Number:

82-402

Citation Search Results Text:

Application of computer graphics to generate coal resources of the Cache coal bed, Recluse geologic model area, Campbell County, Wyoming; 1982; OFR; 82-402; Schneider, G. B.; Crowley, S. S.; Carey, M. A.