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Excerpt from The Borden Siltstone (Mississippian) Delta in Southwestern Illinois The Borden is exposed in central and southern Indiana and in Kentucky. It consists of Siltstone and shale with some fine sandstone and crinoidal limestone. In Indiana the Borden is divided into a basal shale (new Providence) and a thicker upper Siltstone that contains some cross-bedded channel deposits of fine-grained sandstone. Most of the Borden is sparsely fossiliferous, but in a few places fossils are abundant. Small crinoidal limestone bioherms occur. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

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