Seismic cross-sections in the central-southern Campidano. A. SSW-ENE interpreted profile crossing the central Campidano Graben (see location on Figs. 5 and 14) and the underlying SGS. Horizons: Yellow= Base Pliocene (Continental Samassi Fm). Blue= Near Top Burdigalian (near Base post-rift). Green= Near Top Aquitanian. Black=Base marine Aquitanian-Top Oligocene (Base of the SGS). The prominent fault (Median Fault) is connected to the northeastern faulted boundary of the Campidano Basin (See Fig. 14). Note the thick pre-SGS section as in the northern Campidano. B. SSW-ENE interpreted profile crossing the Campidano (see location Figs. 5 and 14) parallel to profile Figure 15A. Same markers as on Figure 15A. It shows the transition from the Median Fault to a positive flower structure.