Washington : U.S. Department of the Interior, Geological Survey, 1967
Resource Type:
Book
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Additional/Related Title Information
Full Title:
Big Snowy and Amsden Groups and the Mississippian-Pennsylvanian boundary in Montana / by Edwin K. Maughan and Albert E. Roberts
Series Titles:
Geological Survey professional paper ; 554-B Shorter contributions to general geology ; [1966] Geological Survey professional paper ; 554-B. Shorter contributions to general geology ; 1966.
Title from title screen (viewed September 24, 2014). Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/). "A study of the Upper Mississippian and Pennsylvanian sedimentary formations with special emphasis on their regional correlation, variation in lithology, and age assignments."