Figure 36--Southwest-northeast cross section showing stratigraphic relations of beds in upper Permian in southwestern Kansas. Note uniform thickness of Whitehorse Formation, lateral persistence of Day Creek Dolomite, which is mostly anhydrite, and northward thinning of "Taloga Formation" by post-Permian erosion.
Kansas Geological Survey, Geologic History of Kansas
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Web version May 2006. Original publication date Dec. 1963.