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Document Type

Research

Abstract

A review of bedrock topographic mapping of Iowa indicates that less than half of the state has been mapped. A map compiled primarily from the published literature of the bedrock configuration of Iowa and segments of the adjacent states of Minnesota, Illinois, Missouri and Nebraska suggests that the bedrock valley pattern parallels modern drainage as hypothesized by Kay and Apfel, in 1928. An unpublished map by Hale (1950) captured major valley trends remarkably well for the limited amount of data available. Studies of the bedrock surface by the United States Geological Survey in cooperation with the Iowa Geological Survey and by the Hydrogeology Research Group at Iowa State University are presently being conducted.

Publication Date

1968

Journal Title

Proceedings of the Iowa Academy of Science

Volume

75

Issue

1

First Page

190

Last Page

196

Copyright

© Copyright 1968 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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