Sedimentary evolution of a new turbidite system in tbe South Atlantic: The Agadir turbidite system

The Agadir turbidite system is located on the Morocco continental margin and the Agadir Basin (South Atlantic), and extends from 200 m to 4300 m water depth. Its establishement seems to have occured during the Oligocene, when the Agadir Canyon was formed. This canyon represents the main valley that feeds the turbidite system. The sediments transported through the Agadir Canyon deposited on the Agadir Basin, developing canyon, channel, overbank and depositional lobe deposits. From the Oligocene to present, this turbidite system has migrated laterally being controlled by the (paleo)topography and the local tectonics. Its vertical sedimentary succession is clearly retrogradational. This retrogration is interpreted as the result of the interplay between tectonics and climat

Sedimentary dynamics of the submarine channels on the Ebro continental slope and base-of-slope (NW Mediterranean Sea) as revealed by HR acoustic imagery

A comprehensive data set of the seafloor relief and superficial sedimentary cover on the Ebro progradational continental slope, NW Mediterranean Sea, reveals that its Late Quaternary building results from complex interrelationships between processes ranging from channel abandonment to incision of inner minor courses, from retrogressive erosion and channel capture to levee cutting and new channel opening, from channel wall sliding to shelf-edge and channel spillover. These processes succeed ones to the others both in time and space conforming a canibalistic frame where the balance between destructive and constructive processes is finally favourable to the last. They result in the formation of the channel-levee complexes characteristic of the Ebro continental slope and base-of-slop