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Document Type

Research

Abstract

The Sioux quartzite is a formation made up of hard, flinty beds, of considerable thickness and extent, which are exposed principally along the Sioux River, in southeastern Dakota, southwestern Minnesota and northwestern Iowa. It is of particular interest to Iowans, for the reason it has been usually regarded as the most ancient geological formation occurring within the limits of the state-older than the lead-bearing rocks of northeastern Iowa, and older than the Cambrian sandstones which lie at the base of the Mississippi bluffs in the extreme corner of the state.

Publication Date

1894

Journal Title

Proceedings of the Iowa Academy of Sciences

Volume

2

Issue

1

First Page

218

Last Page

222

Copyright

©1894 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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