Deep-Water Submarine Hazards On The Southern Santos And Northern Pelotas Basins

Deep-water sedimentary processes in the<br>Southern Santos and Northern Pelotas Basins were<br>investigated based on the analysis of seismic reflection<br>profiles and 3.5 kHz echograms, to demonstrate<br>the influence of downslope and alongslope processes<br>in both sediment distribution and bedforms.<br>The main observed submarine hazards are<br>associated with downslope seabed creep and growth<br>faults at the continental slope, resulting in a rough<br>topography over acoustically transparent, deformed<br>sediments. Large slump deposits were also documented,<br>at the end of the continental slope, as well as<br>extensive turbidite deposits, covering large areas of<br>the São Paulo Plateau.