Coal Geology of the Paleocene-Eocene Calvert Bluff Formation (Wilcox Group) and the Eocene Manning Formation (Jackson Group) in east-central Texas

Edited by P.D. Warwick and S.S. Crowley

U.S. Geological Survey Open-File Report 95-595

Figure 3. Stratigraphic location of lignite and shaley coal channel samples taken from the A1 lignite bed, Calvert mine. Sample numbers refer to Tables 1 and 3.

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