Some Notes on the Pleistocene Geology of Shelby County, Iowa

Authors

R. V. Ruhe, Iowa State CollegeFollow

Document Type

Research

Abstract

Previous investigations in Pleistocene geology in Iowa have resulted in the development of the concepts of gumbotil and the flat gumbotil plains of the Nebraskan and Kansan drift sheets. During recent field work in southwestern Iowa the writer noted differences in textures of the materials of the weathered zones of these tills. Measurable differences in altitudes of the tops of these materials were also noted. Field evidence indicates that (1) the term gumbotil cannot be used to describe all types of weathered till, and (2) variations in relief exist on the surface of the weathered zones of the Nebraskan and Kansan drift sheets.

Publication Date

1948

Journal Title

Proceedings of the Iowa Academy of Science

Volume

55

Issue

1

First Page

281

Last Page

290

Copyright

©1948 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Ruhe, R. V. (1948) "Some Notes on the Pleistocene Geology of Shelby County, Iowa," Proceedings of the Iowa Academy of Science, 55(1), 281-290.
Available at: https://scholarworks.uni.edu/pias/vol55/iss1/38