PP-up reflected wavefield, deconvolved, NMO corrected, at twt time scale. Clear faults are underlined. Subhorizontal events recorded down to Sequanien (1200 m-GL) are recorded in low incidence, thus are considered as non-interfered, reliable P-P reflections in the deep interval. The blue box on the left western side of fault F3 is retained for later comparison with surface seismic section. Fault F3 does not extend above Neocomien level (810 m-GL). Figure modified from Figure 4.2.1-PP of Bailey [8].