Jurassic to early Cretaceous geodynamic evolution of the eastern Hellenides

Remarkably well-preserved crustal sections from the Eastern Hellenides offer the chance to evaluate the regional geodynamic evolution of continental crust. Here, we identify and geodynamically interpret eclogite facies metamorphism in the Triassic–Jurassic volcano-sedimentary series of the West Circ...

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Bibliographic Details
Published in:International journal of earth sciences : Geologische Rundschau 2024-02, Vol.113 (1), p.1-22
Main Authors: Mposkos, Evripidis, Krohe, Alexander, Walton, Craig, Baziotis, Ioannis
Format: Article
Language:English
Subjects:
Belts
Continental crust
Cretaceous
Earth and Environmental Science
Earth Sciences
Eclogite
Evolution
Geochemistry
Geology
Geophysics/Geodesy
Jurassic
Mathematical models
Metamorphism
Mineral composition
Mineral Resources
Original Paper
Phase diagrams
Plate margins
Sedimentary facies
Sedimentology
Structural Geology
Triassic
Volcanoes
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Summary:Remarkably well-preserved crustal sections from the Eastern Hellenides offer the chance to evaluate the regional geodynamic evolution of continental crust. Here, we identify and geodynamically interpret eclogite facies metamorphism in the Triassic–Jurassic volcano-sedimentary series of the West Circum Rhodope zone in the eastern Hellenides. Equilibrium phase diagrams and measured mineral compositions were used to inform reconstructions of geodynamic evolution during the early Alpine period. We newly define the existence of the Eohellenic HP belt, consisting of pre-Alpine basement, continental volcano-sedimentary formations, and a Jurassic magmatic arc. We suggest that the Eohellenic HP-Belt was subducted in the late Jurassic to early Cretaceous beneath the European plate margin. Detailed geodynamic reconstructions such as ours provide a robust anchor for future computational models of long-term crustal evolution in the Eastern Hellenides. Graphical abstract
ISSN:1437-3254
1437-3262
DOI:10.1007/s00531-023-02368-5