Miocene detachment in Crete and exhumation P-T-t paths of high-pressure metamorphic rocks

Article Abstract:

A simplified model explains extensional deformation and metamorphic evolution of the lower plate of Miocene detachment in Crete. Progressive accretion of material from the south created a high pressure/low temperature accretionary wedge. This wedge was bounded to the north by an extensional shear zone which exhumed older metamorphosed units. Exhumation below the detachment was contemporaneous with high-pressure metamorphism. This confirms the simultaneous occurrence of underthrusting and extension. An analysis of the P-T-t paths for the Phyllite-Quartzite nappe is presented.

Observations, Geology, Stratigraphic, Stratigraphy, Miocene Epoch, Rock deformation, Metamorphism (Geology), Crete, Nappes (Geology), Nappes

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Fluid-rock interaction and thermal evolution during thrusting of an Alpine metamorphic complex (Timos Island, Greece)

Article Abstract:

A study was conducted to examine the fluid-rock interaction and thermal evolution along a thrust of the Attic-Cycladic Massif in the Tinos island in Greece. Dolomite-calcite solvus thermometry histograms representing the temperature history during thrusting were revealed from the analysis of the calcite recrystallization during the fluid infiltration. Results also suggested that the thermal evolution during thrusting was controlled by conductive heat transfer instead of fluid infiltration.

Greece, Rocks, Metamorphic, Metamorphic rocks, Dolomite, Calcite crystals

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Article Abstract:

The exhumation of eclogites in the central Aegean region involved thrust faulting. Most extensional contacts in the Mediterranean back-arcs operated subsequently to the overthrusting of the eclogites above lower-grade sequences.

Geology, Structural, Structural geology, Aegean Islands, Aegean Sea

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