Data/hora: 07/06/2024 07:56:51

Provedor de dados: 	5	
País: 	France	
Título: 	High frequency of sediment gravity flow events in the Var submarine canyon (Mediterranean Sea)	
Autores: 	Khripounoff, Alexis; Vangriesheim, Annick; Crassous, Philippe; Etoubleau, Joel.	
Data: 	2009-07	
Ano: 	2009	
Palavras-chave: 	West Mediterranean Sea; Particle flux; Var canyon; Hyperpycnal flow; Turbidity current.	
Resumo: 	This study aimed to analyze the role river floods play in triggering gravity flows and to investigate the role of submarine canyon systems as a conduit for terrigenous material to the deep sea. Two years of measurements in the Var canyon at depths ranging from 1200 m to 2350 m indicate that six floods of the Var River triggered hyperpycnal flows, an important mechanism for transporting particulate matter to the deep-sea floor. These sediment gravity flows were characterized by a sudden increase of current velocity that lasted 8 to 22 h and by downward particle fluxes that reached up to 600 g m(-2)d(-1) of particles and 3.1 g m(-2)d(-1) in terms of organic carbon. These large inputs of sediment and organic carbon may have a significant impact on deep-sea ecosystems and carbon storage in the Mediterranean Sea.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/2009/publication-6640.pdf

DOI:10.1016/j.margeo.2009.03.014	
Editor: 	Elsevier	
Relação: 	http://archimer.ifremer.fr/doc/00000/6640/	
Formato: 	application/pdf	
Fonte: 	Marine Geology (0025-3227) (Elsevier), 2009-07 , Vol. 263 , N. 1-4 , P. 1-6	
Fonte: 	2009 Elsevier Ltd All rights reserved.