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Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 241, part 2
Distribution of the Bandera Shale of the Marmaton Group, Middle Pennsylvanian of Southeastern Kansas--fig. 4

Fig. 4. Gamma-ray logs along cross section A-A', showing a portion of the Marmaton Group between northeastern Allen County and south-central Montgomery County, Kansas, and illustrating the variation in stratigraphy and thickness parallel to the Bandera outcrop belt. See fig. 3 for location of cross section.

Kansas Geological Survey
Web version June 24, 1998