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Document Type

Research

Abstract

A large rounded granitic glacial erratic from the Iowa State College campus has several granitic dikes up to a few inches in width crisscrossing it. They project from the surface of the dike as much as three inches and have smooth surfaces. The surface of the granite country rock is pitted but quite sound. It is believed probably that the boulder has been etched by wind action.

Publication Date

1941

Journal Title

Proceedings of the Iowa Academy of Science

Volume

48

Issue

1

First Page

296

Last Page

296

Copyright

© Copyright 1941 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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