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Document Type

Research

Abstract

A preliminary petrologic investigation of some Paleozoic carbonates from the Wind River Range, Wyoming, has been conducted from thin section study revealing various rock fabrics and a preponderance of diagenetic alteration evidence. The limestones and dolostones are from five principal units: the Gros Ventre, Gallatin, Bighorn, Darby, and Madison formations. Three areas of study are considered. First, it has been found that rather uniform depositional conditions must have existed on this shelf with a decrease in depositional energy at or near the tops and/or bottoms of each system. Secondly, there appears to be a relatively strong correlation between secondary dolomite and non-carbonate material in these sediments which may or may not be indicative of an unstable shelf environment. Finally, Robert L. Folk (1959, pp. 1-38) has made several conclusions about the relative abundance of principal constituents in carbonate rocks. His opinions have been substantiated by this study.

Publication Date

1966

Journal Title

Proceedings of the Iowa Academy of Science

Volume

73

Issue

1

First Page

234

Last Page

252

Copyright

© Copyright 1966 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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