Journal articles
Along-strike variations of P-T conditions in accretionary wedges and syn-orogenic extension, the HP-LT Phyllite-Quartzite Nappe in Crete and the Peloponnese
Abstract : Syn-orogenic detachments in accretionary wedges make the exhumation of high-pressure and low-temperature metamorphic rocks possible with little erosion. The velocity of exhumation within the subduction channel or the accretionary complex, and thus the shape of P-T paths, depend upon the kinematic boundary conditions. A component of slab retreat tends to open the channel and facilitates the exhumation. We document the effect of slab retreat on the shape of P-T paths using the example of the Phyllite-Quartzite Nappe that has been exhumed below the Cretan syn-orogenic detachment during the Miocene in Crete and the Peloponnese. Data show a clear tendency toward colder conditions at peak pressure and during exhumation where the intensity of slab retreat is larger. This spatial evolution of P-T gradient is accompanied with an evolution from a partly coaxial regime below the Peloponnese section of the detachment toward a clearly non-coaxial regime in Crete.
Cited literature [88 references]
https://hal-insu.archives-ouvertes.fr/insu-00411771
Contributor : Pascale Talour <>
Submitted on : Friday, April 6, 2012 - 8:27:40 AM
Last modification on : Wednesday, October 14, 2020 - 4:10:11 AM
Long-term archiving on: : Saturday, July 7, 2012 - 2:20:10 AM
Contributor : Pascale Talour <>
Submitted on : Friday, April 6, 2012 - 8:27:40 AM
Last modification on : Wednesday, October 14, 2020 - 4:10:11 AM
Long-term archiving on: : Saturday, July 7, 2012 - 2:20:10 AM
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