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Figure AF3. Multichannel seismic (MCS) reflection profile (Line P74-45) across the Faro-Albufeira drift on the middle slope showing location of proposed GC-09A (MCS lines provided by REPSOL Oil Company). Four major low-resolution depositional sequences have been recognized in the Pliocene and Quaternary sedimentary record (Llave et al., 2001; Hernández-Molina et al., 2002, 2006) and are separated by four relevant discontinuities: M (late Messinian) LPR (early Pliocene?), QBD (base of the Quaternary?), and MPR (mid-Pleistocene?). LPR erosive discontinuity could represent the onset of drift formation. TWT = two-way traveltime. MOW = Mediterranean Outflow Water.

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