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Document Type

Research

Abstract

Samples of carbonaceous material from several exposures of the Cedar Valley formation have been studied in order to establish a basis for calling the material a coal. Examination has shown that the material is a "cannel'' coal, and it is believed to be one of the earliest known coals in North America.

Publication Date

1960

Journal Title

Proceedings of the Iowa Academy of Science

Volume

67

Issue

1

First Page

253

Last Page

259

Copyright

© Copyright 1960 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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