A second depression more than 40 km long and 5 to 10 km wide has been observed on the shelf facing the Palma Basin (Fig. 10A). South of the Sierra Norte, the valley seems to be narrower before opening out into the Bay of Palma. The incision in the slope domain cuts down to a depth of 0.2–0.3 s TWT relative to the surrounding MES (around 200 m, MA4 and MA5, Fig. 10C). The Slope Unit enters the valley and can be followed up to 0.6 s TWT on the slope (MA1, Fig. 10B). The BU could also be present locally where the valley flattens out (Fig. 3). The MA4 and MA5 lines (Fig. 10C) suggest that
bendamustine thin MSC deposits could be present along the entire valley at 500 m depth (0.4–0.5 s TWT). Below these deposits in the Bay of Palma, a very thick seismic sedimentary unit is controlled by a SE-facing normal fault (MA4 in Fig. 10C) and could be at least Miocene in age. This suggests that
integration Messinian depression could have developed on a pre-existing structurally-controlled feature, as has been already shown on the western Sardinia margin (Sage et al., 2005). The Bay of Palma is indeed a half-graben due to extensional tectonics active from Middle Miocene up to Pliocene–Quaternary times (Gelabert et al., 2004 and Sabat et al., 2011).
