European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 36, issue 6
Articles | Volume 36, issue 6
https://doi.org/10.5194/ejm-36-943-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-36-943-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 6
Research article
 | 
27 Nov 2024
Research article |  | 27 Nov 2024

Pressure–temperature–time and REE mineral evolution in low- to medium-grade polymetamorphic units (Austroalpine Unit, Eastern Alps)

Marianne Sophie Hollinetz, Benjamin Huet, David A. Schneider, Christopher R. M. McFarlane, Ralf Schuster, Gerd Rantitsch, Philip Schantl, Christoph Iglseder, Martin Reiser, and Bernhard Grasemann

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Short summary
In situ U–Th–Pb dating of allanite and monazite provides a robust record of polymetamorphism in greenschist facies metapelites in the Austroalpine Unit. Variations in bulk rock Ca, Al and Na contents produced a wide range of REE-mineral-phase relationships and microstructures, making them excellent geochronometers in complex tectonic settings. Our new pressure, temperature, time and deformation data reveal Permian metamorphism and a major crustal-scale Cretaceous detachment.
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