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Document Type

Research

Abstract

The purpose of this paper is to show the stratigraphic relations of the Greenhorn and Niobrara formations from Sioux City, Iowa, northward along the Big Sioux River, and westward along the Missouri River. It is concluded that the Niobrara formation does not occur in Iowa, but that the chalky beds described by Bain, Calvin and others belong to the Greenhorn formation.

Publication Date

1931

Journal Title

Proceedings of the Iowa Academy of Science

Volume

368

Issue

1

First Page

204

Last Page

204

Copyright

© Copyright 1931 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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