Protracted fluid-induced melting during Barrovian metamorphism in the Central Alps

The timing and dynamics of fluid-induced melting in the typical Barrovian sequence of the Central Alps has been investigated using zircon chronology and trace element composition. Multiple zircon domains in leucosomes and country rocks yield U–Pb ages spanning from ~32 to 22 Ma. The zircon formed du...

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Bibliographic Details
Published in:Contributions to mineralogy and petrology 2009-12, Vol.158 (6), p.703-722
Main Authors: Rubatto, Daniela, Hermann, Jörg, Berger, Alfons, Engi, Martin
Format: Article
Language:English
Subjects:
Crystallization
Earth and Environmental Science
Earth Sciences
Geology
Melting
Metamorphism
Mineral Resources
Mineralogy
Original Paper
Petrology
Rocks
Trace elements
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Summary:The timing and dynamics of fluid-induced melting in the typical Barrovian sequence of the Central Alps has been investigated using zircon chronology and trace element composition. Multiple zircon domains in leucosomes and country rocks yield U–Pb ages spanning from ~32 to 22 Ma. The zircon formed during Alpine melting can be distinguished from the inherited and detrital cores on the basis of their age, Th/U (
ISSN:0010-7999
1432-0967
DOI:10.1007/s00410-009-0406-5