⁴⁰Ar/³⁹Ar ages of some Challis Volcanic Group rocks and the initiation of Tertiary sedimentary basins in southwestern Montana /

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Bibliographic Details
Author / Creator:	M'Gonigle, John W., author.
Imprint:	Washington : United States Government Printing Office, 1996.
Description:	1 online resource (iii, 17 pages) : illustrations, maps.
Language:	English
Series:	U.S. Geological Survey bulletin ; 2132 U.S. Geological Survey bulletin ; 2132.
Subject:	Argon-argon dating. Geology, Stratigraphic -- Tertiary. Igneous rocks -- Montana. Argon-argon dating. Geology, Stratigraphic. Igneous rocks. Tertiary Geologic Period. Montana.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/11042339

Hidden Bibliographic Details
Other authors / contributors:	Dalrymple, G. Brent, author. Geological Survey (U.S.), issuing body.
Notes:	Title from title screen (viewed August 28, 2014). Also available online in PDF format from the U.S. Geological Survey Warehouse (http:/pubs.er.usgs.gov/). "A summary of ⁴⁰Ar/³⁹Ar age analyses of eighteen samples of volcanic rocks from the Challis Volcanic Group and a summary of basin stratigraphy in southwestern Montana." Includes bibliographical references (pages 6-7).
Other form:	Print version: M'Gonigle, John W. ⁴⁰Ar/³⁹Ar ages of some Challis Volcanic Group rocks and the initiation of Tertiary sedimentary basins in southwestern Montana
GPO item no.:	0620 (online)
Govt.docs classification:	I 19.3:2132

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