Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 45 (1938) > Annual Issue
Document Type
Research
Abstract
As occupying the middle of the main lobe of the Ashawa glaciation, the upper Des Moines River held strategic position in one of the strangest drainage recoveries and reversals, during ice-cap retreat, that has ever been recorded. While melting of this Keewatin ice-cap, of the Last Glacial cycle, was going on. the Des Moines River played a curious part. It carried off the major volume of melt-waters for an interval of 300 years, until the ice had melted back to Blue Earth, Minnesota, on the drainage divide between the Des Moines and the Minnesota rivers.
Publication Date
1938
Journal Title
Proceedings of the Iowa Academy of Science
Volume
45
Issue
1
First Page
163
Last Page
164
Copyright
©1938 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Keyes, Charles
(1938)
"Master Drainage During Deglaciation,"
Proceedings of the Iowa Academy of Science, 45(1), 163-164.
Available at:
https://scholarworks.uni.edu/pias/vol45/iss1/32