Flint Hills Job Corps Quotes Funny

The rocks exposed in the Flint Hills were laid down about 250 million years ago during the Permian Period. During this time, much of the Midwest, including Kansas and Oklahoma, were covered with shallow seas. As a result, much of the Flint Hills is composed of limestone and shale with plentiful fossils of prehistoric sea creatures. The most notable layer of chert-bearing limestone is the Florence Limestone Member, which is around 45 feet thick. Numerous roadcuts of the Florence Member are prominent along Interstate 70 in Riley County, Kansas. Unlike the Pennsylvanian limestones to the east, however, many of the limestones in the Flint Hills contain numerous bands of chert or flint. Because chert is much less soluble than the limestone around it, the weathering of the limestone has left behind a clay soil with abundant chert gravel. Most of the hilltops in this region are capped with this chert gravel.

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