Geodynamic Evolution of the Western Mediterranean and Tyrrhenian Sea

Formation of the Tyrrhenian Sea, and the associated counter-clockwise rotation of the Italian peninsula, resulted in longitudinal stretching of the Apennine chain and produced several arc sectors separated by important transverse tectonic lines. The main tectonic lineaments crossing the Apennine chain include the Ancona-Anzio line, the Ortona-Roccamonfma line, 

In conclusion, the overall evolution of the Western Mediterranean Sea area during the last 30-40 Ma can be summarised as follows  

Contraction of the Ligure-Piemontese oceanic basin and continent-continent collision between Adriatic and Europe during the Cretaceous to form the Alps and the Betic Cordillera  

Continuing convergence between Africa and Europe and formation of the Oligocene Ligurian and Provencal Basins, rotation of Sardinia-Corsica block and contemporaneous migration of calc-alkaline magmatism toward the east  

Development of extensive calc-alkaline magmatism in Sardinia between 32 and 15 Ma  

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