138 EUROPE/Mediterranean Tectonics Figure Palaeogeodynamics at about 15 Ma Note the ‘eastward’ vergence of both the Apennines Maghrebides trench and the back arc extensional wave The Liguro Provenc¸al basin, the Valencia trough, and the North Algerian basin were almost completely opened at 10 Ma The Dinarides subduction slowed down, owing to the presence of the thick Adriatic continental lithosphere to the west, whereas to the south the Hellenic subduction was very lively owing to the presence in the footwall plate of the Ionian oceanic lithosphere The Carpathians migrated eastwards, generating the Pannonian back arc basin, with kinematics similar to those of the Apennines Provencal basin (19 15) Age of the oceanic crust