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Document Type

Research

Abstract

Several Wisconsin Loess sections were described before the Iowa Academy of Science in 1953 (1), and data for in-place density and particle size were presented. The thickest of these sections was exposed in a newly opened quarry near Crescent City, Iowa (Fig. 1). This section was of particular interest because it showed several zones of clay concentration at different depths, and at that time it was suggested that the clayey zones might be related to lulls in deposition of the Wisconsin loess. The clayey zones divide the loess into four units which could supposedly correlate with the four advances of Wisconsin glaciation (Appendix A).

Publication Date

1956

Journal Title

Proceedings of the Iowa Academy of Science

Volume

63

Issue

1

First Page

470

Last Page

476

Copyright

© Copyright 1956 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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