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	Provedor de dados ArchiMer (2) Autor Jeandel, C (2) Lacan, F (2) Palavra-chave Neodymium isotopic composition (2) Boundary exchange (1) Geochemistry (1) Iceland Scotland Overflow Water (1) Nordic Seas (1) North Atlantic (1) North Atlantic Deep Water (1) Paleoceanography (1) Rare earth (1) Rare earth elements (1) Sediment seawater interaction (1) Sediment water mass interactions (1) Water mass (1) Water masses (1) Mais... Tipo do documento Text (2) Ano 2005 (1) 2004 (1) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Acquisition of the neodymium isotopic composition of the North Atlantic Deep Water ArchiMer Lacan, F; Jeandel, C. The North Atlantic Deep Water (NADW) neodymium isotopic composition (Nd IC) is increasingly used in oceanography and paleoceanography to trace large-scale circulation and weathering processes, notably to investigate past variations of the global thermohaline circulation. Although the present-day NADW Nd IC is well characterized at epsilon(Nd) = - 13.5, the acquisition of this isotopic signature ( in other words, the causes of this value) has so far been very sparsely documented. Such an understanding is, however, fundamental to the interpretation of paleo records. Nd IC and rare earth element concentrations were measured at 9 stations within the North Atlantic Subpolar Gyre ( SIGNATURE cruise, summer 1999). The comparison of this data set with our... Tipo: Text Palavras-chave: Boundary exchange; Neodymium isotopic composition; North Atlantic Deep Water; Rare earth elements; Sediment seawater interaction; Water mass. Ano: 2005 URL: https://archimer.ifremer.fr/doc/00232/34282/32656.pdf Neodymium isotopic composition and rare earth element concentrations in the deep and intermediate Nordic Seas: Constraints on the Iceland Scotland Overflow Water signature ArchiMer Lacan, F; Jeandel, C. Neodymium isotopic composition and rare earth element concentrations were measured in seawater samples from eleven stations in the Nordic Seas. These data allow us to study how the Iceland Scotland Overflow Water ( ISOW) acquires its neodymium signature in the modern ocean. The waters overflowing the Faroe Shetland channel are characterized by epsilon(Nd) = -8.2 +/- 0.6, in good agreement with the only other data point, published 19 years ago. In the Greenland and Iceland Seas the water masses leading to the formation of the ISOW display lower neodymium isotopic composition, with epsilon(Nd) around -11 and -9, respectively. Since no water masses in the Nordic Seas are characterized by epsilon(Nd) > -8, the radiogenic signature of the ISOW likely... Tipo: Text Palavras-chave: Iceland Scotland Overflow Water; Neodymium isotopic composition; Nordic Seas; North Atlantic; Rare earth; Sediment water mass interactions; Paleoceanography; Water masses; Geochemistry. Ano: 2004 URL: https://archimer.ifremer.fr/doc/00228/33924/32308.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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