Preliminary results on the blasthesis-deformation relationships in the thermometamorphic aureole of Rossano Calabro (Sila Massif, Northern Calabria)

In the Rossano area, the metapelite and meta-arenite sequence of the Bocchigliero Complex (Ordovician-Carboniferous) was intruded by a late Variscan granodiorite belonging to the Sila Batholith. The granodiorite emplacement determined a widespread thermal metamorphic aureole with poikiloblastic cordierite and diffuse crenulation cleavage, with increasing fabric intensity toward the pluton boundary. Microstructural observations and porphyroblasts inclusion-trails analysis provided evidence for the syn-kinematic growth of the cordierite with respect to the developing crenulation cleavage.