Cambrian(?), Middle Proterozoic, and Archean rocks penetrated in a borehole near Argenta, Beaverhead County, Montana, and some paleogeographic and structural implications.

Bibliographic Details
Main Author: Pearson, Robert Carl, 1926-
Format: Government Document Book
Language:English
Published: Washington : U.S. G.P.O. ; 1996.
Series:U.S. Geological Survey bulletin ; 2121.
Belt supergroup in the Highland Mountains and probable equivalent rocks in the Pioneer and Anaconda ranges, southwestern Montana ; B.
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