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Document Type

Research

Abstract

As regards origin, the cherts which occur so abundantly throughout the limestones of the lower carboniferous of the Mississippi valley have been the subject of much speculation. The same problem has received attention from every quarter of the globe. While the explanations offered differ very much from one another they in general agree in that they are regarded as formed contemporaneously with the geological formations in which they occur. The writings of Prestwich, Irving, Van Hise, Hull, Benard, Hinde, Hardman, Hovey, and many others corroborate this statement.

Publication Date

1902

Journal Title

Proceedings of the Iowa Academy of Sciences

Volume

10

Issue

1

First Page

103

Last Page

105

Copyright

© Copyright 1902 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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