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Quality and petrographic characteristics of Paleocene coals from the Hanna basin, Wyoming

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DOI: 10.1016/0146-6380(96)00016-2

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Abstract

Coal beds from the Ferris and Hanna Formations, in the Hanna basin, south-central Wyoming, exhibit distinct differences in ash yield, sulfur content, and petrographic and palynologic constituents. These differences are interpreted to be controlled by tectonic changes of the Hanna basin and adjoining uplifts during evolutionary development, which, in turn, controlled mire chemistry and sedimentation. These conditions created two very different settings under which the peats developed during deposition of the Ferris and the Hanna Formations. In addition, there appears to be a geographic (latitudinal) and/or climatic control on the coal characteristics manifested by major differences of Paleocene coals in the Hanna basin compared to those in the Raton basin in Colorado and New Mexico and the Powder River basin in Wyoming.Coal beds from the Ferris and Hanna Formations, in the Hanna basin, south-central Wyoming, exhibit distinct differences in ash yield, sulfur content, and petrographic and palynologic constituents. These differences are interpreted to be controlled by tectonic changes of the Hanna basin and adjoining uplifts during evolutionary development, which, in turn, controlled mire chemistry and sedimentation. These conditions created two very different settings under which the peats developed during deposition of the Ferris and the Hanna Formations. In addition, there appears to be a geographic (latitudinal) and/or climatic control on the coal characteristics manifested by major differences of Paleocene coals in the Hanna basin compared to those in the Raton basin in Colorado and New Mexico and the Powder River basin in Wyoming.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Quality and petrographic characteristics of Paleocene coals from the Hanna basin, Wyoming
DOI:
10.1016/0146-6380(96)00016-2
Volume
24
Issue:
2
Year Published:
1996
Language:
English
Publisher:
Pergamon Press Inc
Publisher location:
Tarrytown, NY, United States
First page:
181
Last page:
187
Number of Pages:
7
Conference Title:
Proceedings of the 1994 12th Annual Meeting of the Society for Organic Petrology
Conference Location:
Jackson, WY, USA
Conference Date:
25 September 1994 through 30 September 1994