Structural depth maps of the Base continental Pliocene Samassi Fm (Fig. 11A) and of the MES (Fig. 11B). Stratigraphic calibration by OR-1 allowed mapping seismic horizons and the main faults. They show the thickening and deepening of the Plio-Quaternary along the active Capo Frasca −Sinis Fault and the intense Late Miocene to Recent faulting N-S oriented. Four main continuous faults trends (I to IV) are picked and interpreted as strike-slip faults. Figure 11B displays a Messinian paleo-channel whose course was influenced by the Late Miocene tectonic deformations (Cornée et al., 2008).