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Document Type

Research

Abstract

In his report on the geology of Lee county Keyes described a fine-grained, compact limestone at the top of the St. Louis formation, resembling lithographic stone in texture. Gordon reported a similar limestone characterized by Spirifer littoni (=Spirifer pellaensis Weller) and Pugnax ottumwa at the same horizon in Van Buren County. Bain subsequently recognized this member in Keokuk County and named it the Pella because of its typical development at the town of this name in the neighboring county of Marion. This name has been adopted by Savage in his geology of Henry County and by Miller in the Marion county report.

Publication Date

1915

Journal Title

Proceedings of the Iowa Academy of Science

Volume

22

Issue

1

First Page

241

Last Page

247

Copyright

©1915 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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