Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores

Gérard A. Auffret; Thomas Richter; Jean Louis Reyss; Catherine Organo; Etienne Deloule; Jean François Gaillard; Bernard Dennielou; Caria Müller; Bertrand Thomas; Pierre Watremez; Francis Grousset; An Boelaert; Pierre Cambon; Joël Etoubleau

Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores

Translated title of the contribution: Record of hydrothermal activity in sediments from the Mid-Atlantic Ridge south of the Azores

Gérard A. Auffret^*, Thomas Richter, Jean Louis Reyss, Catherine Organo, Etienne Deloule, Jean François Gaillard, Bernard Dennielou, Caria Müller, Bertrand Thomas, Pierre Watremez, Francis Grousset, An Boelaert, Pierre Cambon, Joël Etoubleau

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

In order to recognize the distribution of hydrothermal tracers south of the Azores, a series of cores has been sampled during the GEOFAR cruise. The distribution of the Mn concentrations shows that the hydrothermal influence is maximum within and to the north-west of the Lucky Strike segment. North of the East-Azores Fracture Zone the sediments are enriched in Ba which could be derived from different sources. The chemical composition of the interstitial water shows that water advection is limited. Mn, Cu, Ni fluxes evaluated in one site have increased during isotopic stages 4 and 2 and the déglaciation. Keyword: Sediment, Hydrothermalism, Paleoceanography, Iron, Manganese, Barium, Arsenic.

Translated title of the contribution	Record of hydrothermal activity in sediments from the Mid-Atlantic Ridge south of the Azores
Original language	French
Pages (from-to)	583-590
Number of pages	8
Journal	Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes
Volume	323
Issue number	7
State	Published - 1996

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ocean Engineering

Cite this

Auffret, G. A., Richter, T., Reyss, J. L., Organo, C., Deloule, E., Gaillard, J. F., Dennielou, B., Müller, C., Thomas, B., Watremez, P., Grousset, F., Boelaert, A., Cambon, P., & Etoubleau, J. (1996). Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores. Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, 323(7), 583-590.

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title = "Enregistrement de l'activit{\'e} hydrothermale dans les s{\'e}diments de la dorsale m{\'e}dio-atlantique au Sud des A{\c c}ores",

abstract = "In order to recognize the distribution of hydrothermal tracers south of the Azores, a series of cores has been sampled during the GEOFAR cruise. The distribution of the Mn concentrations shows that the hydrothermal influence is maximum within and to the north-west of the Lucky Strike segment. North of the East-Azores Fracture Zone the sediments are enriched in Ba which could be derived from different sources. The chemical composition of the interstitial water shows that water advection is limited. Mn, Cu, Ni fluxes evaluated in one site have increased during isotopic stages 4 and 2 and the d{\'e}glaciation. Keyword: Sediment, Hydrothermalism, Paleoceanography, Iron, Manganese, Barium, Arsenic.",

author = "Auffret, {G{\'e}rard A.} and Thomas Richter and Reyss, {Jean Louis} and Catherine Organo and Etienne Deloule and Gaillard, {Jean Fran{\c c}ois} and Bernard Dennielou and Caria M{\"u}ller and Bertrand Thomas and Pierre Watremez and Francis Grousset and An Boelaert and Pierre Cambon and Jo{\"e}l Etoubleau",

year = "1996",

language = "French",

volume = "323",

pages = "583--590",

journal = "Comptes Rendus - Academie des Sciences, Serie II: Sciences de la Terre, et des Planetes",

issn = "1251-8050",

publisher = "Gauthier Villars Editeur",

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Auffret, GA, Richter, T, Reyss, JL, Organo, C, Deloule, E, Gaillard, JF, Dennielou, B, Müller, C, Thomas, B, Watremez, P, Grousset, F, Boelaert, A, Cambon, P & Etoubleau, J 1996, 'Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores', Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, vol. 323, no. 7, pp. 583-590.

Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores. / Auffret, Gérard A.; Richter, Thomas; Reyss, Jean Louis et al.

In: Comptes Rendus de l'Academie de Sciences - Serie IIa: Sciences de la Terre et des Planetes, Vol. 323, No. 7, 1996, p. 583-590.

Research output: Contribution to journal › Article › peer-review

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T1 - Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores

AU - Auffret, Gérard A.

AU - Richter, Thomas

AU - Reyss, Jean Louis

AU - Organo, Catherine

AU - Deloule, Etienne

AU - Gaillard, Jean François

AU - Dennielou, Bernard

AU - Müller, Caria

AU - Thomas, Bertrand

AU - Watremez, Pierre

AU - Grousset, Francis

AU - Boelaert, An

AU - Cambon, Pierre

AU - Etoubleau, Joël

PY - 1996

Y1 - 1996

N2 - In order to recognize the distribution of hydrothermal tracers south of the Azores, a series of cores has been sampled during the GEOFAR cruise. The distribution of the Mn concentrations shows that the hydrothermal influence is maximum within and to the north-west of the Lucky Strike segment. North of the East-Azores Fracture Zone the sediments are enriched in Ba which could be derived from different sources. The chemical composition of the interstitial water shows that water advection is limited. Mn, Cu, Ni fluxes evaluated in one site have increased during isotopic stages 4 and 2 and the déglaciation. Keyword: Sediment, Hydrothermalism, Paleoceanography, Iron, Manganese, Barium, Arsenic.

AB - In order to recognize the distribution of hydrothermal tracers south of the Azores, a series of cores has been sampled during the GEOFAR cruise. The distribution of the Mn concentrations shows that the hydrothermal influence is maximum within and to the north-west of the Lucky Strike segment. North of the East-Azores Fracture Zone the sediments are enriched in Ba which could be derived from different sources. The chemical composition of the interstitial water shows that water advection is limited. Mn, Cu, Ni fluxes evaluated in one site have increased during isotopic stages 4 and 2 and the déglaciation. Keyword: Sediment, Hydrothermalism, Paleoceanography, Iron, Manganese, Barium, Arsenic.

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JF - Comptes Rendus - Academie des Sciences, Serie II: Sciences de la Terre, et des Planetes

IS - 7

ER -

Enregistrement de l'activité hydrothermale dans les sédiments de la dorsale médio-atlantique au Sud des Açores

Abstract

ASJC Scopus subject areas

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