Submarine canyons in Brazilian Equatorial Margin: The Apodi-Mossor?? canyons, NE-Brazil

Author

Almeida, Narelle M. ; Vital, Helenice

Author_Institution

Postgrad. Programme in Geodynamics & Geophys. (PPGG), Fed. Univ. of Rio Grande do Norte (UFRN), Natal, Brazil

fYear

2013

fDate

24-26 July 2013

Firstpage

1

Lastpage

8

Abstract

The lack of data of continental slope regions and the perspective to oil explorations in these areas stimulated this study. Multibeam data was collected in continental slope of the Potiguar basin with the aim of modeling the seafloor. Different submarine canyons were mapped. In this work the focus are a set of 4 canyons we believe were originated due to the influence of Apodi-Mossoró River when the sea level was lower than presently. The canyons were named a1 to a4 canyons. Landslide structures and gullies were mapped in the walls of these canyons indicating erosional deposicional style.

Keywords

bathymetry; sea level; seafloor phenomena; Apodi-Mossoro canyons; Apodi-Mossoro river; Brazilian equatorial margin; NE-Brazil; Potiguar basin; continental slope regions; erosional deposicional style; landslide structures; multibeam data; oil explorations; sea level; seafloor modeling; submarine canyons; Market research; Morphology; Rivers; Sea level; Sediments; Terrain factors; Underwater vehicles; continental slope; multibeam; submarine canyon;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics in Underwater Geosciences Symposium (RIO Acoustics), 2013 IEEE/OES

Conference_Location

Rio de Janeiro

Type

conf

DOI

10.1109/RIOAcoustics.2013.6683989

Filename

6683989