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Excerpt from Wisconsinan and Sangamonian Type Sections of Central Illinois In the 1970 classification of Pleistocene deposits in Illinois, willman and Frye designated Farm Creek as the type section for the Farmdalian Sub stage, Robein Silt, and Farmdale Soil. Recent stratigraphic studies have suggested that careful reexamination of these units is necessary for a more complete understanding of their stratigraphic importance. 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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