Variation of illite/muscovite super(40)Ar/ super(39)Ar age spectra during progressive low-grade metamorphism: an example from the US Cordillera

super(40)Ar/ super(39)Ar step-heating data were collected from micron to submicron grain-sizes of correlative illite- and muscovite-rich Cambrian pelitic rocks from the western United States that range in metamorphic grade from the shallow diagenetic zone (zeolite facies) to the epizone (greenschist...

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Bibliographic Details
Published inContributions to mineralogy and petrology Vol. 164; no. 3; pp. 521 - 536
Main Authors Verdel, Charles, Pluijm, Ben A, Niemi, Nathan
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
USA, California
Germany, Berlin
USA, Nevada
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