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Authors

J. E. Todd

Document Type

Research

Abstract

As most are aware, there are areas of drift external to any terminal moraines, the origin of which is still in dispute. On general principles, it would be expected that numerous lakes would have frequently occurred during the Ice Age. As the ice advanced, streams would frequently be dammed, and their channels more or less changed, and the might of the ice, with its chilling effect, in level areas would not infrequently produce a subsidence toward the ice, which would often become filled with the floods escaping from the ice.

Publication Date

1890

Journal Title

Proceedings of the Iowa Academy of Sciences

Volume

1

Issue

Pt. 2

First Page

17

Last Page

19

Copyright

©1890 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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