Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise)
International audience Vertical export of particulate trace elements (pTEs) is a critically underconstrained aspect of their biogeochemistry. Here, we combine elemental analyses on large (>53 μm) particles and 234Th measurements to determine downward export fluxes from the upper layers (40-110 m)...
Published in: | ACS Earth and Space Chemistry |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://doi.org/10.1021/acsearthspacechem.0c00045 https://hal.archives-ouvertes.fr/hal-03030236/file/Lemaitre_etal_ACS-EaSC_2020.pdf https://hal.archives-ouvertes.fr/hal-03030236 |
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fttriple:oai:gotriple.eu:10670/1.ma1ahj |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
particulate trace elements export fluxes ACL GEOTRACES residence times multiple carrier phases envir geo |
spellingShingle |
particulate trace elements export fluxes ACL GEOTRACES residence times multiple carrier phases envir geo Lemaitre, Nolwenn Planquette, Hélène Dehairs, Frank Planchon, Frédéric Sarthou, Géraldine Gallinari, Morgane Roig, Stéphane Catherine, Jeandel Castrillejo, Maxi Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
topic_facet |
particulate trace elements export fluxes ACL GEOTRACES residence times multiple carrier phases envir geo |
description |
International audience Vertical export of particulate trace elements (pTEs) is a critically underconstrained aspect of their biogeochemistry. Here, we combine elemental analyses on large (>53 μm) particles and 234Th measurements to determine downward export fluxes from the upper layers (40-110 m) of pTEs (Al, Cd, Co, Cu, Fe, Mn, Ni, P, Ti, V, Zn) and mineral phases (lithogenic, Fe-and Mn-oxides, calcium carbonate, and opal) in the North Atlantic along the GEOVIDE transect (Portugal-Greenland-Canada; GEOTRACES GA01 cruise). The role of lithogenic particles in controlling TE fluxes is obvious at proximity of the Iberian margin where the highest pTE export fluxes were estimated (up to 3912 μg/m2/d for pFe). However, high lithogenic and pTE fluxes are also observed up to 1700 km off this margin in the west European and Icelandic basins (up to 931 μg/m2/d for pFe). The lowest pTE export fluxes are determined in the Labrador Sea (as low as 501 μg/m2/d for pFe). High Mn-and Fe-oxide fluxes are estimated at the open ocean stations, suggesting that authigenic particles are an important vector of pTEs. All along the transect, biogenic particles also drive the pTE export fluxes, as shown by the similar pTE/POC ratios between exports and phytoplankton quotas. The shortest residence times (dissolved + particulate) are generally observed where lithogenic particles control the pTE fluxes (as low as 2 days for Fe) whereas pTEs seem to be longer retained when the contribution of biogenic particles become greater (residence times up to 147 days for Fe). |
author2 |
Institute of Geochemistry and Petrology ETH Zürich Department of Earth Sciences Swiss Federal Institute of Technology - ETH Zürich (D-ERDW) Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) 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 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) Analytical, Environmental and Geo- Chemistry Vrije Universiteit Brussel (VUB) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) Ion Beam Physics ETH Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) ANR-13-BS06-0014,GEOVIDE,GEOVIDE, Une étude internationale GEOTRACES le long de la section OVIDE en Atlantique Nord et en Mer du Labrador(2013) ANR-12-PDOC-0025,BITMAP,Biodisponibilité du fer et des métaux traces dans les particules marines(2012) ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010) |
format |
Article in Journal/Newspaper |
author |
Lemaitre, Nolwenn Planquette, Hélène Dehairs, Frank Planchon, Frédéric Sarthou, Géraldine Gallinari, Morgane Roig, Stéphane Catherine, Jeandel Castrillejo, Maxi |
author_facet |
Lemaitre, Nolwenn Planquette, Hélène Dehairs, Frank Planchon, Frédéric Sarthou, Géraldine Gallinari, Morgane Roig, Stéphane Catherine, Jeandel Castrillejo, Maxi |
author_sort |
Lemaitre, Nolwenn |
title |
Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
title_short |
Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
title_full |
Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
title_fullStr |
Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
title_full_unstemmed |
Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) |
title_sort |
particulate trace element export in the north atlantic (geotraces ga01 transect, geovide cruise) |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://doi.org/10.1021/acsearthspacechem.0c00045 https://hal.archives-ouvertes.fr/hal-03030236/file/Lemaitre_etal_ACS-EaSC_2020.pdf https://hal.archives-ouvertes.fr/hal-03030236 |
geographic |
Canada Greenland |
geographic_facet |
Canada Greenland |
genre |
Greenland Labrador Sea North Atlantic |
genre_facet |
Greenland Labrador Sea North Atlantic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2472-3452 ACS Earth and Space Chemistry ACS Earth and Space Chemistry, ACS, 2020, 4 (11), pp.2185-2204. ⟨10.1021/acsearthspacechem.0c00045⟩ |
op_relation |
hal-03030236 doi:10.1021/acsearthspacechem.0c00045 10670/1.ma1ahj https://hal.archives-ouvertes.fr/hal-03030236/file/Lemaitre_etal_ACS-EaSC_2020.pdf https://hal.archives-ouvertes.fr/hal-03030236 |
op_doi |
https://doi.org/10.1021/acsearthspacechem.0c00045 |
container_title |
ACS Earth and Space Chemistry |
container_volume |
4 |
container_issue |
11 |
container_start_page |
2185 |
op_container_end_page |
2204 |
_version_ |
1766019645556391936 |
spelling |
fttriple:oai:gotriple.eu:10670/1.ma1ahj 2023-05-15T16:29:56+02:00 Particulate Trace Element Export in the North Atlantic (GEOTRACES GA01 Transect, GEOVIDE Cruise) Lemaitre, Nolwenn Planquette, Hélène Dehairs, Frank Planchon, Frédéric Sarthou, Géraldine Gallinari, Morgane Roig, Stéphane Catherine, Jeandel Castrillejo, Maxi Institute of Geochemistry and Petrology ETH Zürich Department of Earth Sciences Swiss Federal Institute of Technology - ETH Zürich (D-ERDW) Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) 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 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) Analytical, Environmental and Geo- Chemistry Vrije Universiteit Brussel (VUB) Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS) Ion Beam Physics ETH Zürich Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) ANR-13-BS06-0014,GEOVIDE,GEOVIDE, Une étude internationale GEOTRACES le long de la section OVIDE en Atlantique Nord et en Mer du Labrador(2013) ANR-12-PDOC-0025,BITMAP,Biodisponibilité du fer et des métaux traces dans les particules marines(2012) ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010) 2020-11-19 https://doi.org/10.1021/acsearthspacechem.0c00045 https://hal.archives-ouvertes.fr/hal-03030236/file/Lemaitre_etal_ACS-EaSC_2020.pdf https://hal.archives-ouvertes.fr/hal-03030236 en eng HAL CCSD ACS hal-03030236 doi:10.1021/acsearthspacechem.0c00045 10670/1.ma1ahj https://hal.archives-ouvertes.fr/hal-03030236/file/Lemaitre_etal_ACS-EaSC_2020.pdf https://hal.archives-ouvertes.fr/hal-03030236 Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 2472-3452 ACS Earth and Space Chemistry ACS Earth and Space Chemistry, ACS, 2020, 4 (11), pp.2185-2204. ⟨10.1021/acsearthspacechem.0c00045⟩ particulate trace elements export fluxes ACL GEOTRACES residence times multiple carrier phases envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1021/acsearthspacechem.0c00045 2023-01-22T17:09:00Z International audience Vertical export of particulate trace elements (pTEs) is a critically underconstrained aspect of their biogeochemistry. Here, we combine elemental analyses on large (>53 μm) particles and 234Th measurements to determine downward export fluxes from the upper layers (40-110 m) of pTEs (Al, Cd, Co, Cu, Fe, Mn, Ni, P, Ti, V, Zn) and mineral phases (lithogenic, Fe-and Mn-oxides, calcium carbonate, and opal) in the North Atlantic along the GEOVIDE transect (Portugal-Greenland-Canada; GEOTRACES GA01 cruise). The role of lithogenic particles in controlling TE fluxes is obvious at proximity of the Iberian margin where the highest pTE export fluxes were estimated (up to 3912 μg/m2/d for pFe). However, high lithogenic and pTE fluxes are also observed up to 1700 km off this margin in the west European and Icelandic basins (up to 931 μg/m2/d for pFe). The lowest pTE export fluxes are determined in the Labrador Sea (as low as 501 μg/m2/d for pFe). High Mn-and Fe-oxide fluxes are estimated at the open ocean stations, suggesting that authigenic particles are an important vector of pTEs. All along the transect, biogenic particles also drive the pTE export fluxes, as shown by the similar pTE/POC ratios between exports and phytoplankton quotas. The shortest residence times (dissolved + particulate) are generally observed where lithogenic particles control the pTE fluxes (as low as 2 days for Fe) whereas pTEs seem to be longer retained when the contribution of biogenic particles become greater (residence times up to 147 days for Fe). Article in Journal/Newspaper Greenland Labrador Sea North Atlantic Unknown Canada Greenland ACS Earth and Space Chemistry 4 11 2185 2204 |