KGS Cyclic Sedimentation Original published in D.F. Merriam, ed., 1964, Symposium on cyclic sedimentation: Kansas Geological Survey, Bulletin 169, pp. 623-630

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Figure 1--Relation of baselevel to erosional and depositional surfaces: A, if baselevel is considered a "horizontal plane" (in part from Dunbar and Rodgers, 1957), and B, if baselevel is considered a single, ever-present, and worldwide "sphere" in response to changing patterns of sediment supply energy relationships.

comparison of baselevel as set of horizontal planes and baselevel as worldwide sphere based on sediment supply energy

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Kansas Geological Survey
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Web version April 2003. Original publication date Dec. 1964.