Figure 20
Figure 20--Electric-log cross section in southwestern Nebraska and northwestern Kansas showing possible correlation and stratigraphic relations of Cretaceous beds between Graneros Shale and Pierre Shale.
Kansas Geological Survey, Geologic History of Kansas
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Web version April 2006. Original publication date Dec. 1963.
URL=http://www.kgs.ku.edu/Publications/Bulletins/162/fig020x.html