MYLONITE FABRIC DEVELOPMENT ON NAXOS, GREECE

The Miocene structural evolution of the metamorphic complex on Naxos occurred within a mid- to lower crustal, sub-horizontal shear zone. The deformation style and the regional stress field in the Aegean during the Miocene are consistent with exhumation of the metamorphic complex during ductile crustal thinning. Deformation in this shear zone initiated possibly before, and continued after, the peak of localized high-temperature Barrovian-style metamorphism. Kinematic indicators in non-coaxial fabrics indicate that upper structural levels were displaced to the NNE throughout the Miocene structural history of the metamorphic complex. This displacement was accompanied during its latter stages by compression in an E-W direction.