Guidebook to the coal geology of the Powder River coal basin, Wyoming

Book · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6805366

Glass, G B ^[1]

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1. ed.

This survey of Wyoming's Powder River Coal Basin was done in June 1980, with emphasis on coal geology and specifically environments of coal deposition. A geologic map explanation was included. The survey included: (1) the regional depositional framework of the uranium- and coal-bearing Wasatch (Eocene) and Fort Union (Paleocene) Formations, Powder River Basin; (2) the Lake De Smet Coal Seam: the product of active basin-margin sedimentation and tectonics in the Lake De Smet Area, Johnson County, Wyoming, during Eocene Wasatch time; (3) fluvial coal settings of the Tongue River Member of the Fort Union Formation in the Powder River Clear Creek Area; (4) coal resources of the Powder River Coal basin; (5) survey of chemical and petrographic characteristics of Powder River Basin coals; and (6) the Rawhide Coal Mine, Campbell County, Wyoming. The depositional framework of the Fort Union and Wasach formations is characterized by a northward-flowing intermountain basinal fluvial system. The paleogeographic reconstruction of the fluvial settings of the Tongue River Member deposits in the Powder River-Clear Creek area sugges two important subenvironments of coal accumulation. The thickest and most important coals are found in the Paleocene Fort Union Formation and the Eocene Wasatch Formation. Each section was discussed in detail. (DP)

• OSTI ID: 6805366
• Country of Publication: United States
• Language: English

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