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	Provedor de dados ArchiMer (3) Autor Buscail, R (2) Abassi, A (1) Charriere, B (1) Durrieu De Madron, Xavier (1) Giresse, P (1) Heussner, S (1) Lapouyade, Agnes (1) Masque, P (1) Sanchez-cabeza, Ja (1) Schrimm, M (1) Mais... Palavra-chave Carbone organique (3) Organic carbon (3) 210Pb (1) Advective transport (1) Bilans (1) Budget (1) Carbon export (1) Carbonate (1) Coral reefs (1) Exportation de carbone (1) Flux particulaire (1) Golfe du Lion (1) Gravity-induced process (1) Gulf of Lion (1) Matière particulaire (1) Méditerranée nord-occidentale (1) North-western Mediterranean (1) Particle flux (1) Particulate matter (1) Pb-210 (1) Mais... Tipo do documento Text (3) Ano 2002 (1) 2001 (2) País France (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Seasonal variations of downward particle fluxes in front of a reef pass (Moorea Island, French Polynesia) ArchiMer Schrimm, M; Heussner, S; Buscail, R. Downward particle fluxes off the Taotoi Pass, a typical Polynesian lagoon pass, have been measured over an annual cycle by means of an array of three mooring lines deployed at 40 m depth on the external sandy plain seawards of the Tiahura reef. Each line was equipped with two hand-operated sediment traps located 1.5 and 10 m above the bottom. During the 1-year survey, the traps were deployed for seven periods of 2-3 weeks. One line equipped with an automated trap was further deployed at 400 m depth on the deep fore-reef slope to collect deep settling particles over two consecutive 6-month periods. For all periods investigated, fluxes on the external plain were highest in front of the pass, and decreased by half on either side (up- and downstream with... Tipo: Text Palavras-chave: Flux particulaire; Exportation de carbone; Récif corallien; Carbone organique; Carbonate; Particle flux; Carbon export; Coral reefs; Organic carbon; Carbonate. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43320/42934.pdf Seasonal variability of the advective transport of particulate matter and organic carbon in the Gulf of Lion (NW Mediterranean) ArchiMer Lapouyade, Agnes; Durrieu De Madron, Xavier. Nine hydrographic cruises were performed on the Gulf of Lion continental margin between June 1993 and July 1996. These observations are analysed to quantify the fluxes of particulate matter and organic carbon transported along the slope by the Northern Current and to characterise their seasonal variability. Concentration of particulate matter and organic carbon are derived from light-transmission data and water sample analyses. The circulation is estimated from the geostrophic current field. The uncertainty on the transport estimate, related to the error on the prediction of particle concentrations from light-transmission data and the error on velocities, is assessed. The particulate matter inflow entering the Gulf of Lion off Marseille is comparable to... Tipo: Text Palavras-chave: Transport advectif; Bilans; Golfe du Lion; Matière particulaire; Carbone organique; Advective transport; Budget; Gulf of Lion; Organic carbon; Particulate matter. Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43357/42823.pdf Biotracers and geotracers of depositional events in NW Mediterranean margin over the past two centuries ArchiMer Giresse, P; Buscail, R; Charriere, B; Abassi, A; Masque, P; Sanchez-cabeza, Ja. A detailed sedimentological and geochemical investigation was performed on slope sediments collected from the Gulf of Lions and Catalonian margins and from the northern Balearic margin. The study was based on cores, about 50 cm long. Various physiographic sites (canyons, open slopes) were selected according to the available sediment accumulation rates obtained with the Pb-210 geochronological method. At a short time scale, various parts of the slope were characterized by muddy hemipelagic sediment. Sedimentological data suggested that deposition was continuous. Total organic carbon and its hydrolysable fraction decreased downcore. Significant increase of C/N ratio downcore resulted from an early diagenetic process in response to the burial effect. However... Tipo: Text Palavras-chave: Méditerranée nord-occidentale; Vitesse de sédimentation; Processus gravitaires; Carbone organique; 210Pb; North-western Mediterranean; Sedimentation rate; Gravity-induced process; Organic carbon; Pb-210. Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43335/42892.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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