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.
Subjects:
Description
Item Description:Shippping list number: 96-0155-P.
Physical Description:iii, 15 pages : illustrations, maps ; 28 cm.
Bibliography:Includes bibliographical references (pages 14-15).