Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 20 (1913) > Annual Issue
Document Type
Research
Abstract
For several reasons the section of Cretacic strata in northwestern Iowa is of especial interest. It was in this section, near the mouth of the Big Sioux River, that for the first time in the New World the stratigraphic equivalents of the English Cretacic formations were clearly recognized. In this section true chalk, made up of countless myriads of microscopic organic remains, was first discovered in this country. This section is also a part of the classic locality for the Mid-Cretacic formations of America.
Publication Date
1913
Journal Title
Proceedings of the Iowa Academy of Science
Volume
20
Issue
1
First Page
199
Last Page
201
Copyright
©1913 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Keyes, Charles
(1913)
"Complete Succession of Iowan Cretacic Terranes,"
Proceedings of the Iowa Academy of Science, 20(1), 199-201.
Available at:
https://scholarworks.uni.edu/pias/vol20/iss1/18