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Authors

Charles Keyes

Document Type

Research

Abstract

In its broader, or continental, relationships, the chronologic position of our Iowa Productive coal measures assumes an altogether different aspect from that heretofore commonly presented, and that is implied by their incorporation under the title of Pennsylvanian series. Recent physiographic and diastrophic analysis separates completely our Des Moines coal measures, of the continental interior region, from the typical Pennsylvanian coal section of the Atlantic border.

Publication Date

1938

Journal Title

Proceedings of the Iowa Academy of Science

Volume

45

Issue

1

First Page

164

Last Page

165

Copyright

© Copyright 1938 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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