Dating eclogite-facies metamorphism in the Eastern Alps – approaches, results, interpretations: a review

Dating eclogite-facies metamorphism in the Eastern Alps – approaches, results, interpretations: a review

In the Eastern Alps, different tectonic units contain eclogites of Carboniferous, Cretaceous (eo-Alpine), and Cenozoic age: (i) In the structurally lower Penninic unit, which is exposed in the Tauern window, eclogites formed at peak P-T conditions of 2.4GPa and is less than or equal to 630 degrees C...

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Veröffentlicht in:Mineralogy and petrology 2006-09, Vol.88 (1-2), p.123-148
1. Verfasser: Thöni, M.
Format: Artikel
Sprache:eng
Schlagworte:
Carboniferous
Cenozoic
Continental margins
Cretaceous
Eocene
Mesozoic
Metamorphic rocks
Metamorphism
Mineralogy
Mountains
Oligocene
Petrology
Plate tectonics
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Zusammenfassung:In the Eastern Alps, different tectonic units contain eclogites of Carboniferous, Cretaceous (eo-Alpine), and Cenozoic age: (i) In the structurally lower Penninic unit, which is exposed in the Tauern window, eclogites formed at peak P-T conditions of 2.4GPa and is less than or equal to 630 degrees C as a result of subduction of the former European continental margin at the base of an imbricate stack of Mesozoic oceanic rocks below the Austroalpine domain. Amphibole and phengite 40Ar-39Ar and Rb-Sr multimineral isochron ages suggest an Eocene-Early Oligocene (
ISSN:0930-0708
1438-1168
DOI:10.1007/s00710-006-0153-5