Structural seng and sedimentary basins in the Western Margin of the Calabrian Arc

In this work, main tectonic and sedimentary aspects of the western margin of the Calabrian Arc have been described through an integrated approach, involving the analysis of mulchannel seismic lines, mulbeam data and Chirp profiles. Through the idenficaon of several seismic sequences, the characterizaon of basins internal geometry, the lateral variaon of thickness and the syntectonic nature it has been possible to link the sedimentary basins configuraon with the Alfeo Fault System geometry and acvity. On the base of our results, we aributed to the Alfeo Fault System the characteriscs of a Subducon Transform Edge Propagator (STEP) Fault. The distribuon of faults, the main sedimentary basins and the relaonship between deep and superficial deformaon allow us to compare the STEP fault features idenfied in the Calabrian Arc with other fault systems in the arc-shaped subducon zones of the world, finding the major affini es with the Carpathian and Barbados arcs.