Resumen de Interaction between a Contourite Depositional System and the Mar de Plata Canyon off Argentina and Uruguay

Benedict Preu, Tilmann Schwenk, Francisco Javier Hernández Molina, Michael Strasser, Tammo Huppertz, T. J. J. Hanebuth, Roberto A. Violante, Sebastian Krastel Gudegast, Rüdiger Henrich, Katja Lindhorst, Mathias Meyer, Volkhard Spieß, M78/3 shipboard scientific party

• During RV Meteor Cruise M49/2 and M78/3 high resolution seismo-acoustic data were collected imaging a large contourite depositional system along the Argentine/Uruguay margin located in 600 m to 2000 m water depth. While upslope of 900 m water depth the slope can be characterized by an area of erosion or non-deposition caused by Antarctic Intermediate Water, the middle slope is shaped by a plastered drift under the influence of Upper Circumpolar Deep Water. Part of this system is the Mar del Plata Canyon collecting sediments from erosive processes in its flanks and bottom-currents.