Restoring the location of the Briançonnais with respect to the Alpine subduction zone at three particular times, starting from the youngest stages. A: End of Briançonnais subduction and ongoing exhumation processes. B: Latest, pre-subduction sedimentation over the external Briançonnais (Eocene “Flysch noir”). C: Paleogeography during the Santonian-Maastrichtian, assuming plate convergence velocity equal ∼0.8 cm/y. Large empty arrows: plate convergence; large black arrows: crustal extension. Vertical scale equals horizontal scale.