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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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To determine the presence, or conditions leading to the presence, of uraniferous host rocks in the Pennsylvanian subsurface strata of south-central Kansas, rocks in the Sedgwick basin were studied as part of a much larger investigation involving four 2° quadrangles. Investigation also extended into Oklahoma for purposes of correlation.
The area long has been one of active exploration for oil and gas and much of the subsurface information is drawn from well logs. Most of the surface Pennsylvanian outcrops have been studied for several years. The designation "sandstone" herein is used in its broadest sense, and may include any of the coarser clastic sediments because the impure, arkosic or graywacke-type sandstones may be more favorable host rocks, and the granularity may vary from very coarse to fine, in the latter case from cementation of original porosity. The most favorable environments for deposition are terrigenous and fluvial, shoreline, and nearshore deltaic; the cyclothemic deposits so characteristic of the Kansas Pennsylvanian should be most likely host rocks. The problem in part is one of stratigraphic corr lation because the Kansas border was usually close to the hinge line, or shelf-to-basin transition, resulting in numerous facies changes. The presence of uraniferous deposits should probably be complementary with those in which hydrocarbons may occur.
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