Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge)
International audience While hydrothermal vents are now thought to be a major source of dissolved iron to the oceans, they have always been considered to be a sink for the dissolved rare-earth elements (DREEs). However, true dissolved REE observations in hydrothermal plumes are still lacking. Here w...
Published in: | Chemical Geology |
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Main Authors: | , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
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Subjects: | |
Online Access: | https://hal.univ-brest.fr/hal-01901653 https://hal.univ-brest.fr/hal-01901653/document https://hal.univ-brest.fr/hal-01901653/file/Chavagnac_etal_CG_2018.pdf https://doi.org/10.1016/j.chemgeo.2018.09.021 |
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ftanrparis:oai:HAL:hal-01901653v1 |
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openpolar |
institution |
Open Polar |
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Portail HAL-ANR (Agence Nationale de la Recherche) |
op_collection_id |
ftanrparis |
language |
English |
topic |
Rare earth elements Neodymium isotopes Hydrothermal ACL Sulfate minerals EMSO-Azores Black smokers [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
spellingShingle |
Rare earth elements Neodymium isotopes Hydrothermal ACL Sulfate minerals EMSO-Azores Black smokers [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry Chavagnac, Valérie Saleban Ali, Hassan Jeandel, Catherine Leleu, Thomas, E Destrigneville, Christine Castillo, Alain Cotte, Laura Waeles, Matthieu Cathalot, Cécile Laës-Huon, Agathe Pelleter, Ewan Nonnotte, Philippe Sarradin, Pierre-Marie Cannat, Mathilde Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
topic_facet |
Rare earth elements Neodymium isotopes Hydrothermal ACL Sulfate minerals EMSO-Azores Black smokers [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
description |
International audience While hydrothermal vents are now thought to be a major source of dissolved iron to the oceans, they have always been considered to be a sink for the dissolved rare-earth elements (DREEs). However, true dissolved REE observations in hydrothermal plumes are still lacking. Here we report for the first time the DREE concentrations and neodymium isotopic compositions (DεNd) of buoyant hydrothermal fluids at Lucky Strike (Mid-Atlantic Ridge). We find that 27 to 62% of total hydrothermal DREEs are rapidly scavenged by anhydrite precipitation at the onset of buoyant plume formation. After this initial loss, all DREEs behave quasi-conservatively within the buoyant plume. Dissolved phase εNd (DεNd) in the evolving plume are identical to black smoker DεNd of +9.0 and contrast radically with DεNd of the local deep water mass at −12.0. Plume DεNd as low as +6.6 may be reconciled by dissolution of newly formed barite in the local environment and carrying seawater DεNd signature. We find, based on the first plume DREE observations, that hydrothermal plumes are in fact a source of DREE to the North Atlantic Deep Water. Precipitation/dissolution processes of hydrothermally-derived minerals, i.e. sulfates in the buoyant plume and Fe oxy-hydroxide in the non-buoyant plume, will likely affect the fate of other trace metals and their isotopic composition. |
author2 |
Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Environnement Profond (LEP) Etudes des Ecosystèmes Profonds (EEP) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Unité Géosciences Marines (GM) Laboratoire Géosciences Océan (LGO) Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) ANR-14-CE02-0008,LuckyScales,De la chambre magmatique aux micro-habitats: dynamique des écosystèmes hydrothermaux marins profonds(2014) European Project: 211816,EC:FP7:INFRA,FP7-INFRASTRUCTURES-2007-1,EMSO(2008) |
format |
Article in Journal/Newspaper |
author |
Chavagnac, Valérie Saleban Ali, Hassan Jeandel, Catherine Leleu, Thomas, E Destrigneville, Christine Castillo, Alain Cotte, Laura Waeles, Matthieu Cathalot, Cécile Laës-Huon, Agathe Pelleter, Ewan Nonnotte, Philippe Sarradin, Pierre-Marie Cannat, Mathilde |
author_facet |
Chavagnac, Valérie Saleban Ali, Hassan Jeandel, Catherine Leleu, Thomas, E Destrigneville, Christine Castillo, Alain Cotte, Laura Waeles, Matthieu Cathalot, Cécile Laës-Huon, Agathe Pelleter, Ewan Nonnotte, Philippe Sarradin, Pierre-Marie Cannat, Mathilde |
author_sort |
Chavagnac, Valérie |
title |
Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
title_short |
Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
title_full |
Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
title_fullStr |
Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
title_full_unstemmed |
Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) |
title_sort |
sulfate minerals control dissolved rare earth element flux and nd isotope signature of buoyant hydrothermal plume (emso-azores, 37°n mid-atlantic ridge) |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.univ-brest.fr/hal-01901653 https://hal.univ-brest.fr/hal-01901653/document https://hal.univ-brest.fr/hal-01901653/file/Chavagnac_etal_CG_2018.pdf https://doi.org/10.1016/j.chemgeo.2018.09.021 |
geographic |
Mid-Atlantic Ridge |
geographic_facet |
Mid-Atlantic Ridge |
genre |
North Atlantic Deep Water North Atlantic |
genre_facet |
North Atlantic Deep Water North Atlantic |
op_source |
ISSN: 0009-2541 Chemical Geology https://hal.univ-brest.fr/hal-01901653 Chemical Geology, 2018, 499, pp.111-125. ⟨10.1016/j.chemgeo.2018.09.021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemgeo.2018.09.021 info:eu-repo/grantAgreement/EC/FP7/211816/EU/European Multidisciplinary Seafloor Observation/EMSO hal-01901653 https://hal.univ-brest.fr/hal-01901653 https://hal.univ-brest.fr/hal-01901653/document https://hal.univ-brest.fr/hal-01901653/file/Chavagnac_etal_CG_2018.pdf doi:10.1016/j.chemgeo.2018.09.021 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.chemgeo.2018.09.021 |
container_title |
Chemical Geology |
container_volume |
499 |
container_start_page |
111 |
op_container_end_page |
125 |
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1798850078464540672 |
spelling |
ftanrparis:oai:HAL:hal-01901653v1 2024-05-12T08:07:25+00:00 Sulfate minerals control dissolved rare earth element flux and Nd isotope signature of buoyant hydrothermal plume (EMSO-Azores, 37°N Mid-Atlantic Ridge) Chavagnac, Valérie Saleban Ali, Hassan Jeandel, Catherine Leleu, Thomas, E Destrigneville, Christine Castillo, Alain Cotte, Laura Waeles, Matthieu Cathalot, Cécile Laës-Huon, Agathe Pelleter, Ewan Nonnotte, Philippe Sarradin, Pierre-Marie Cannat, Mathilde Géosciences Environnement Toulouse (GET) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Environnement Profond (LEP) Etudes des Ecosystèmes Profonds (EEP) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Unité Géosciences Marines (GM) Laboratoire Géosciences Océan (LGO) Université de Bretagne Sud (UBS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) ANR-14-CE02-0008,LuckyScales,De la chambre magmatique aux micro-habitats: dynamique des écosystèmes hydrothermaux marins profonds(2014) European Project: 211816,EC:FP7:INFRA,FP7-INFRASTRUCTURES-2007-1,EMSO(2008) 2018 https://hal.univ-brest.fr/hal-01901653 https://hal.univ-brest.fr/hal-01901653/document https://hal.univ-brest.fr/hal-01901653/file/Chavagnac_etal_CG_2018.pdf https://doi.org/10.1016/j.chemgeo.2018.09.021 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemgeo.2018.09.021 info:eu-repo/grantAgreement/EC/FP7/211816/EU/European Multidisciplinary Seafloor Observation/EMSO hal-01901653 https://hal.univ-brest.fr/hal-01901653 https://hal.univ-brest.fr/hal-01901653/document https://hal.univ-brest.fr/hal-01901653/file/Chavagnac_etal_CG_2018.pdf doi:10.1016/j.chemgeo.2018.09.021 info:eu-repo/semantics/OpenAccess ISSN: 0009-2541 Chemical Geology https://hal.univ-brest.fr/hal-01901653 Chemical Geology, 2018, 499, pp.111-125. ⟨10.1016/j.chemgeo.2018.09.021⟩ Rare earth elements Neodymium isotopes Hydrothermal ACL Sulfate minerals EMSO-Azores Black smokers [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry info:eu-repo/semantics/article Journal articles 2018 ftanrparis https://doi.org/10.1016/j.chemgeo.2018.09.021 2024-04-16T03:12:42Z International audience While hydrothermal vents are now thought to be a major source of dissolved iron to the oceans, they have always been considered to be a sink for the dissolved rare-earth elements (DREEs). However, true dissolved REE observations in hydrothermal plumes are still lacking. Here we report for the first time the DREE concentrations and neodymium isotopic compositions (DεNd) of buoyant hydrothermal fluids at Lucky Strike (Mid-Atlantic Ridge). We find that 27 to 62% of total hydrothermal DREEs are rapidly scavenged by anhydrite precipitation at the onset of buoyant plume formation. After this initial loss, all DREEs behave quasi-conservatively within the buoyant plume. Dissolved phase εNd (DεNd) in the evolving plume are identical to black smoker DεNd of +9.0 and contrast radically with DεNd of the local deep water mass at −12.0. Plume DεNd as low as +6.6 may be reconciled by dissolution of newly formed barite in the local environment and carrying seawater DεNd signature. We find, based on the first plume DREE observations, that hydrothermal plumes are in fact a source of DREE to the North Atlantic Deep Water. Precipitation/dissolution processes of hydrothermally-derived minerals, i.e. sulfates in the buoyant plume and Fe oxy-hydroxide in the non-buoyant plume, will likely affect the fate of other trace metals and their isotopic composition. Article in Journal/Newspaper North Atlantic Deep Water North Atlantic Portail HAL-ANR (Agence Nationale de la Recherche) Mid-Atlantic Ridge Chemical Geology 499 111 125 |