Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 48 (1941) > Annual Issue
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
©1941 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Gwynne, C. S.
(1941)
"Etched Boulder at Ames, Iowa (Abstract),"
Proceedings of the Iowa Academy of Science, 48(1), 296-296.
Available at:
https://scholarworks.uni.edu/pias/vol48/iss1/70