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Authors

F. M. Fultz

Document Type

Research

Abstract

In a general way the lithological characters of the Burlington limestones, including both the lower and upper divisions, are the same. It is true that some layers are more compact than others, some more massive and a few are even crystalline enough in texture to imperfectly resemble marble, yet they all owe their origin to the same source. The material comprising them is almost wholly crinoidal. To such an extent is this true, that, with the exception of a very few layers, it is scarcely possible to find a cubic inch of rock that does not show its crinoidal origin. There are a few layers of shales, clays, etc., but for the most part they are quite thin and form but a very small part of the whole. However, they are deserving of some attention and I shall take occasion to refer to at least one or two of them specifically.

Publication Date

1893

Journal Title

Proceedings of the Iowa Academy of Sciences

Volume

1

Issue

Pt. 4

First Page

56

Last Page

58

Copyright

©1893 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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