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Document Type

Research

Abstract

Iowa's mid-continental location has made its area one of the last to be reached by the successive marine invasions from the Cambrian on. A quantitative study of the length of post-Cambrian time during which Iowa has been land versus the length of time it has been more or less a sea floor is offered.

Publication Date

1929

Journal Title

Proceedings of the Iowa Academy of Science

Volume

36

Issue

1

First Page

280

Last Page

280

Copyright

© Copyright 1929 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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