Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 5 (1897) > Annual Issue
Document Type
Research
Abstract
The Illinoian till sheet here discussed was formed by the Illinois glacial lobe in connection with the maximum extension of that lobe. It seems quite well established that a lobe on the east, which covered southeastern Indiana and southwestern Ohio, and extended a short distance into Kentucky, also had its culmination at the Illinoian stage of glaciation. Farther east the Wisconsin sheet in many places reaches the glacial boundary, but there are small tracts of drift older than the Wisconsin, lying outside its limits in eastern Ohio, northwestern and northeastern Pennsylvania, and northern New Jersey, which may prove to be of Illinoian age, though this is as yet, not established.
Publication Date
1897
Journal Title
Proceedings of the Iowa Academy of Sciences
Volume
5
Issue
1
First Page
71
Last Page
80
Copyright
©1897 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Leverett, Frank
(1897)
"The Weathered Zone (Sangamon) between the Iowan Loess and Illinoian Till Sheet,"
Proceedings of the Iowa Academy of Science, 5(1), 71-80.
Available at:
https://scholarworks.uni.edu/pias/vol5/iss1/14