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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 30 (1946)

Issue: 8. (August)

First Page: 1221

Last Page: 1254

Title: Siluro-Devonian Strata in Central Kansas

Author(s): Hall Taylor (2)

Abstract:

The Siluro-Devonian Misener sandstone and underlying Hunton limestone are extensive in the subsurface section of central Kansas. They are only approximately equivalent in age to similarly named formations in the Oklahoma surface section.

The Misener is a shale and limestone-bearing sand which varies in thickness, and is missing in places. Its impure lithology, irregular distribution, and direct superposition upon both Ordovician and Siluro-Devonian rocks indicate formation during widespread pre-Mississippian erosion intervals.

In north-central Kansas the Hunton is primarily a dolomitic limestone. In a southwesterly direction it thins from several hundred feet to zero. Correlations based on chert lithologies indicate that lower Hunton beds disappear toward the southwest because of overlap in that direction, middle Hunton strata are the most extensive, and upper Hunton beds thin and disappear toward the southwest because of erosion, coupled with offlap toward the northeast. Most of the beds are regarded as Silurian, with Devonian present only in the northeastern part of the area, but fossil evidence is scant, and lithologic breaks are obscure.

Hunton limestones in south-central Kansas are normally less than 60 feet thick, and are not directly connected with those at the north. They cover a larger area than previously mapped, and extend into the region east of the buried Nemaha granite ridge. Inconclusive evidence indicates they are Silurian in age.

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