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Title Composition, age, and petrogenesis of late Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana / by E.A. du Bray and L.W. Snee.
Imprint [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2002.


 GovDocs Federal  I 19.16:1657    AVAILABLE
Edition Version 1.0.
Description iv, 30 p. : ill. (some col.), maps ; 29 cm.
Series U.S. Geological Survey professional paper ; 1657.
Note Shipping list no.: 2002-0226-P.
Bibliog. Includes bibliographical references (p. 29-30).
Subject Geology, Stratigraphic -- Cretaceous.
Rocks -- Montana -- Broadwater County -- Analysis.
Rocks -- Montana -- Meagher County -- Analysis.
Other Author Snee, Lawrence W.
Geological Survey (U.S.)
Other Title Title from p. [4] of cover: Lake Cretaceous intrusive rocks, central Big Belt Mountains, Montana.