Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N)
Metal partitioning between the dissolved and particulate phases is still poorly constrained within the early mixing of hydrothermal fluids and deep seawater. In this study, in situ filtration has been used to collect early buoyant plume fluids. This has provided the unique opportunity to reassess pr...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | https://archimer.ifremer.fr/doc/00598/71060/93513.pdf https://doi.org/10.1016/j.dsr.2019.103204 https://archimer.ifremer.fr/doc/00598/71060/ |
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ftarchimer:oai:archimer.ifremer.fr:71060 2023-05-15T17:13:50+02:00 Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) Cotte, Laura Chavagnac, V. Pelleter, Ewan Laës-huon, A. Cathalot, Cecile Dulaquais, Gabriel Riso, Ricardo Sarradin, Pierre-marie Waeles, Mathieu 2020-03 application/pdf https://archimer.ifremer.fr/doc/00598/71060/93513.pdf https://doi.org/10.1016/j.dsr.2019.103204 https://archimer.ifremer.fr/doc/00598/71060/ eng eng Elsevier BV https://archimer.ifremer.fr/doc/00598/71060/93513.pdf doi:10.1016/j.dsr.2019.103204 https://archimer.ifremer.fr/doc/00598/71060/ info:eu-repo/semantics/openAccess restricted use Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Elsevier BV), 2020-03 , Vol. 157 , P. 103204 (12p.) Deep-sea vents Hydrothermal Metal Mixing gradient Precipitation In-situ filtration text Publication info:eu-repo/semantics/article 2020 ftarchimer https://doi.org/10.1016/j.dsr.2019.103204 2022-05-03T22:50:02Z Metal partitioning between the dissolved and particulate phases is still poorly constrained within the early mixing of hydrothermal fluids and deep seawater. In this study, in situ filtration has been used to collect early buoyant plume fluids. This has provided the unique opportunity to reassess precisely metal partitioning along the mixing gradient by limiting chemical exchange processes between the dissolved (<0.45 μm) and particulate (>0.45 μm) phases during sampling. We report on the partitioning of three major metals (Fe, Cu, Zn) in the early buoyant plume of six black and clear smokers from the Lucky Strike hydrothermal field (37°N, MAR; EMSO-Azores deep sea observatory). We show that chemical changes are limited in the warmest part of the plume [50–150°C, dMn > 40 μM; dilution factor (DF) of ~1–10 by NADW] as metal partitioning displays a chemical signature similar to the end-member one. However, as the dilution ratio between the hydrothermal fluid and North-Atlantic Deep-water (NADW) increases (4–50°C, dMn < 40 μM; DF of 10–100 by NADW), metal partitioning is affected by different precipitation and oxidation processes. Molar ratios normalized to Fe in the particles highlight the onset of Fe oxides formation, the precipitation of barite and the decreasing contribution of sulfide minerals (mainly Cu–Fe sulfides and sphalerite/wurtzite) along with fluid dilution. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Mid-Atlantic Ridge Deep Sea Research Part I: Oceanographic Research Papers 157 103204 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Deep-sea vents Hydrothermal Metal Mixing gradient Precipitation In-situ filtration |
spellingShingle |
Deep-sea vents Hydrothermal Metal Mixing gradient Precipitation In-situ filtration Cotte, Laura Chavagnac, V. Pelleter, Ewan Laës-huon, A. Cathalot, Cecile Dulaquais, Gabriel Riso, Ricardo Sarradin, Pierre-marie Waeles, Mathieu Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
topic_facet |
Deep-sea vents Hydrothermal Metal Mixing gradient Precipitation In-situ filtration |
description |
Metal partitioning between the dissolved and particulate phases is still poorly constrained within the early mixing of hydrothermal fluids and deep seawater. In this study, in situ filtration has been used to collect early buoyant plume fluids. This has provided the unique opportunity to reassess precisely metal partitioning along the mixing gradient by limiting chemical exchange processes between the dissolved (<0.45 μm) and particulate (>0.45 μm) phases during sampling. We report on the partitioning of three major metals (Fe, Cu, Zn) in the early buoyant plume of six black and clear smokers from the Lucky Strike hydrothermal field (37°N, MAR; EMSO-Azores deep sea observatory). We show that chemical changes are limited in the warmest part of the plume [50–150°C, dMn > 40 μM; dilution factor (DF) of ~1–10 by NADW] as metal partitioning displays a chemical signature similar to the end-member one. However, as the dilution ratio between the hydrothermal fluid and North-Atlantic Deep-water (NADW) increases (4–50°C, dMn < 40 μM; DF of 10–100 by NADW), metal partitioning is affected by different precipitation and oxidation processes. Molar ratios normalized to Fe in the particles highlight the onset of Fe oxides formation, the precipitation of barite and the decreasing contribution of sulfide minerals (mainly Cu–Fe sulfides and sphalerite/wurtzite) along with fluid dilution. |
format |
Article in Journal/Newspaper |
author |
Cotte, Laura Chavagnac, V. Pelleter, Ewan Laës-huon, A. Cathalot, Cecile Dulaquais, Gabriel Riso, Ricardo Sarradin, Pierre-marie Waeles, Mathieu |
author_facet |
Cotte, Laura Chavagnac, V. Pelleter, Ewan Laës-huon, A. Cathalot, Cecile Dulaquais, Gabriel Riso, Ricardo Sarradin, Pierre-marie Waeles, Mathieu |
author_sort |
Cotte, Laura |
title |
Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
title_short |
Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
title_full |
Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
title_fullStr |
Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
title_full_unstemmed |
Metal partitioning after in situ filtration at deep-sea vents of the Lucky Strike hydrothermal field (EMSO-Azores, Mid-Atlantic Ridge, 37°N) |
title_sort |
metal partitioning after in situ filtration at deep-sea vents of the lucky strike hydrothermal field (emso-azores, mid-atlantic ridge, 37°n) |
publisher |
Elsevier BV |
publishDate |
2020 |
url |
https://archimer.ifremer.fr/doc/00598/71060/93513.pdf https://doi.org/10.1016/j.dsr.2019.103204 https://archimer.ifremer.fr/doc/00598/71060/ |
geographic |
Mid-Atlantic Ridge |
geographic_facet |
Mid-Atlantic Ridge |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Elsevier BV), 2020-03 , Vol. 157 , P. 103204 (12p.) |
op_relation |
https://archimer.ifremer.fr/doc/00598/71060/93513.pdf doi:10.1016/j.dsr.2019.103204 https://archimer.ifremer.fr/doc/00598/71060/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.dsr.2019.103204 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
157 |
container_start_page |
103204 |
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1766071019338989568 |