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Salina Basin Stratigraphy and Development

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Figure 4

Fig. 4--Diagrammatic cross sections from southeastern Kansas to central Iowa showing structural relations of Kinderhookian to younger Mississippian limestones. Cross section A shows the attitude of the Kinderhookian rocks on the line X-X' at the beginning of Osagian time. Central Iowa had been a subsiding basin in which sediments of Kinderhookian rocks accumulated more thickly than in southeastern Kansas. Slight elevation and beveling probably ended Kinderhookian deposition. Cross section B shows the attitude of Mississippian formations at the end of Meramecian time on the same line. The surface of the beveled Kinderhookian rocks was progressively lowered toward the south during Osagian and Meramecian time. All the formations from St. Joe to St. Louis overlapped in turn, northward upon the surface of the Kinderhookian rocks.

In osagian time, Northview and Compton thicken from Oklahoma to Missouri, change to Sedalia and Chouteau and thin out at Iowa border; at Meramecian, later rocks beveled off Northview, Compton, Sedalia, Chouteau.

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Kansas Geological Survey, Geology
Placed on web Dec. 28, 2007; originally published Nov. 1948.
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