Understanding continent-ocean sediment transfer

Type Publication
Date 2004-07-06
Language English
Copyright 2004 AGU
Author(s) Mulder Thierry1, Cirac Pierre, Gaudin Mathieu2, Bourillet Jean-FrancoisORCID2, Trainer J., Normand Alain2, Weber O., Griboulard R., Jouanneau Jean-Marie, Anschutz Pierre, Jorissen Frans
Affiliation(s) 1 : Université Bordeaux 1, Département de Géologie et Océanographie,UMR CNRS 5805 EPOC,33405 Talence Cedex, France
2 : Ifremer, France
Source EOS, Transactions American Geophysical Union (0096-3941) (AGU), 2004-07-06 , Vol. 85 , N. 27 , P. 257
DOI 10.1029/2004EO270001
Abstract Submarine canyons are narrow but deep submarine valleys that extend for hundreds of meters. They represent the most impressive structures that shape the present morphology of passive continental margins. They can occur off the mouth of rivers: the Tagus, Zaire, Amazon, and Orinoco in the Atlantic; the Indus in the Indian Ocean; and the Var, Rhone, and Ebro in the Mediterranean. Some are at times disconnected from any stream mouth such as the Nazare canyon, off Portugal, despite the fact that it is close to the coast. Some were connected to a river mouth during lowstands of sea level, such as the Wilmington canyon in the northwest Atlantic, or the Blackmud canyon in the northeast Atlantic.
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Mulder Thierry, Cirac Pierre, Gaudin Mathieu, Bourillet Jean-Francois, Trainer J., Normand Alain, Weber O., Griboulard R., Jouanneau Jean-Marie, Anschutz Pierre, Jorissen Frans (2004). Understanding continent-ocean sediment transfer. EOS, Transactions American Geophysical Union, 85(27), 257. Publisher's official version : http://doi.org/10.1029/2004EO270001 , Open Access version : http://archimer.ifremer.fr/doc/00071/18201/