Evidences for extensional tectonics associated to thermal relaxation in the Variscan chain of central northern Sardinia (Italy) [Evidenze di una tettonica estensionale associata al rilassamento termico nella Catena Varisica della Sardegna Centro-Settentrionale (ITALIA)]

Part of the South-European Variscan chain is exposed in Sardinia, The structures derived from the collision between the Northern Gondwana margin and the ATA (Armorica Terrane Assemblage) control the structural frame of the chain, nevertheless the structural analysis of a sector of the Nappe Zone, near Ozieri, evidenced an important post-collision tectonics that took place in concomitance with late-orogenic granitoids emplacement.