The Role of Moldic Porosity in Paleozoic Kansas Reservoirs and the Association of Original Depositional Facies and Early Diagenesis With Reservoir Properties

Kansas Geological Survey
Open-file Report 2003-32

General Lansing-Kansas City Geologic Setting

Oolitic packstones and grainstones are the most prolific reservoir lithofacies for the Pennsylvanian Lansing-Kansas City. Oolite shoal facies owe their wide distribution geographically within Kansas and stratigraphically within the Upper Pennsylvanian to bathymetry (very low-angle ramp) and episodic sea level changes. The broad Kansas shallow shelf and oscillating sea level resulted in lateral migration of oolite shoal conducive environments and successive creation of stacked oolite cyclothems.

(Gerlach, 1998; lgkc_oil.html)


Oolites in Cyclothems

Stratigraphic column of Upper Desmoinesian and Upper Missourian Strata

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Last updated May 2003