Stratigraphy and geologic history of the Montana group and equivalent rocks, Montana, Wyoming, and North and South Dakota, by J. R. Gill and W. A. Cobban.
Gill, James R. (James Rogers), 1922-1972.; Cobban, William A., 1916-2015 joint author.
1973
QE685 .G55 1973 (Mapit)
Available at General Collection

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Title
Stratigraphy and geologic history of the Montana group and equivalent rocks, Montana, Wyoming, and North and South Dakota, by J. R. Gill and W. A. Cobban.
Author
Gill, James R. (James Rogers), 1922-1972.
Publication Details
Washington, U.S. Govt. Print. Off., 1973.
Language
English
Description
iii, 37 p. : ill., maps ; 29 cm.
Call Number
QE685 .G55 1973
Dewey Decimal Classification
551.7/7
GPO Item No.
0624
Bibliography, etc. Note
Bibliography: p. 36-37.
Added Author
Cobban, William A., 1916-2015 joint author.
Series
Geological Survey professional paper ; 776.
Record Appears in
On-Campus Resources > Books
All Resources
Abstract
Introduction
Geologic setting
Ammonite sequence
Historical background of the Montana group
Stratigraphy of the Montana Group, Montana
Stratigraphy of rocks equivalent to the Montana Group, Wyoming
Correlation of rocks of the Montana Group
Geological history of the Montana Group
Telegraph Creek-Eagle regression
Claggett transgression
Judith River regression
Bearpaw transgression
Fox Hills regression, initial phase
Fox Hills regression, final phase
Rates of transgression and regression
Rates of sedimentation
References cited.

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