Figure 12. Postdrilling interpretation for local seismic profile SO 36-47, across Site 1168, showing broad ages and lithostratigraphic units. The site is on a gentle slope to the west. Note the thick Oligocene sequence. The long-wavelength hummocks in the late Eocene may represent delta distributaries. There is almost no seismic character in the younger sequences, but three age/lithostratigraphic boundaries are marked by reflectors: Me, Oe, and El. Siliciclastic material has been shed from a ridge upslope into the Eocene and Oligocene sequences. TD = total depth.