Crustal melting triggering strain partitioning and crustal flow during continent collision. Clues from the tectono-thermal evolution of the Belledonne - Pelvoux Variscan massifs (original) (raw)

This research investigates the role of partial melting in the crustal dynamics during the Variscan orogeny, focusing on the under-studied Belledonne - Pelvoux massifs in the French Western Alps. Through structural analyses, thermobarometric estimates, and geochronological data, five key tectono-thermal events are outlined, revealing mechanisms of strain partitioning and crustal flow. The study suggests that the interplay between melting and deformation contributes to a complex flow regime, highlighting significant geological processes relevant at both local and larger scales within the Variscan belt.