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Tertiary coals in South Texas: Anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene) - Geologic setting, character, source-rock and coal-bed methane potential

Open-File Report 99-301

Edited by:
Peter D. Warwick ORCID iD , Claire E. Aubourg , and Jason C. Willett

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Abstract

The coal-bearing Gulf of Mexico Coastal Plain of North America contains a variety of depositional settings and coal types. The coal-bearing region extends westward from Alabama and Mississippi, across Louisiana to the northern part of the Mississippi Embayment, and then southward to eastern Arkansas, Texas and northern Mexico (fig. 1). Most of the coal currently mined in Texas is lignite from the upper part of the Wilcox Group (Paleocene-Eocene) and, in Louisiana, lignite is mined from the lower part of the Wilcox (fig. 2). Gulf Coast coal is used primarily as fuel for mine-mouth electric plants. On this field trip we will visit the only two non-Wilcox coal mining intervals in the Texas-Louisiana Coastal Plain; these include the San Pedro - Santo Tomas bituminous cannel-like coal zone of the Eocene Claiborne Group, and the San Miguel lignite coal zone of the Eocene Jackson Group (fig. 2). Other coal-mining areas in northern Mexico are currently producing bituminous coal from the Cretaceous Olmos Formation of the Navaro Group (fig. 2).

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Tertiary coals in South Texas: Anomalous cannel-like coals of Webb County (Claiborne Group, Eocene) and lignites of Atascosa County (Jackson Group, Eocene) - Geologic setting, character, source-rock and coal-bed methane potential
Series title:
Open-File Report
Series number:
99-301
Year Published:
1999
Language:
English
Publisher:
U.S. Geological Survey
Description:
vi, 47 p.
Public Comments:
Field Trip Guidebook for the The 1999 AAPG Annual Convention, Energy Minerals Division, Field Trip # 15, April 14-15, 1999
Country:
United States
State:
Texas
County:
Atascosa County, Webb County