Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea
International audience Gas hydrates, a solid established by water and gas molecules, are widespread along the continental margins of the world. Their dynamics have mainly been regarded through the lens of temperature-pressure conditions. A fluctuation in one of these parameters may cause destabiliza...
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ftccsdartic:oai:HAL:hal-02387691v1 2023-05-15T17:51:08+02:00 Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea Riboulot, Vincent Ker, Stephan Sultan, Nabil Thomas, Yannick Marsset, Bruno Scalabrin, Carla Ruffine, Livio Boulart, Cédric Ion, Gabriel Laboratoire Géodynamique et enregistrement Sédimentaire - Geosciences Marines (GM-LGS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Unité de recherche Géosciences Marines (Ifremer) (GM) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) 2018-12 https://hal.archives-ouvertes.fr/hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691/document https://hal.archives-ouvertes.fr/hal-02387691/file/s41467-017-02271-z.pdf https://doi.org/10.1038/s41467-017-02271-z en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02271-z hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691/document https://hal.archives-ouvertes.fr/hal-02387691/file/s41467-017-02271-z.pdf doi:10.1038/s41467-017-02271-z http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess CC-BY-ND ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02387691 Nature Communications, Nature Publishing Group, 2018, 9 (1), ⟨10.1038/s41467-017-02271-z⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.1038/s41467-017-02271-z 2021-11-07T00:24:15Z International audience Gas hydrates, a solid established by water and gas molecules, are widespread along the continental margins of the world. Their dynamics have mainly been regarded through the lens of temperature-pressure conditions. A fluctuation in one of these parameters may cause destabilization of gas hydrate-bearing sediments below the seafloor with implications in ocean acidification and eventually in global warming. Here we show throughout an example of the Black Sea, the world's most isolated sea, evidence that extensive gas hydrate dissociation may occur in the future due to recent salinity changes of the sea water. Recent and forthcoming salt diffusion within the sediment will destabilize gas hydrates by reducing the extension and thickness of their thermodynamic stability zone in a region covering at least 2800 square kilometers which focus seepages at the observed sites. We suspect this process to occur in other world regions (e.g., Caspian Sea, Sea of Marmara). Article in Journal/Newspaper Ocean acidification Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Nature Communications 9 1 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Riboulot, Vincent Ker, Stephan Sultan, Nabil Thomas, Yannick Marsset, Bruno Scalabrin, Carla Ruffine, Livio Boulart, Cédric Ion, Gabriel Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Gas hydrates, a solid established by water and gas molecules, are widespread along the continental margins of the world. Their dynamics have mainly been regarded through the lens of temperature-pressure conditions. A fluctuation in one of these parameters may cause destabilization of gas hydrate-bearing sediments below the seafloor with implications in ocean acidification and eventually in global warming. Here we show throughout an example of the Black Sea, the world's most isolated sea, evidence that extensive gas hydrate dissociation may occur in the future due to recent salinity changes of the sea water. Recent and forthcoming salt diffusion within the sediment will destabilize gas hydrates by reducing the extension and thickness of their thermodynamic stability zone in a region covering at least 2800 square kilometers which focus seepages at the observed sites. We suspect this process to occur in other world regions (e.g., Caspian Sea, Sea of Marmara). |
author2 |
Laboratoire Géodynamique et enregistrement Sédimentaire - Geosciences Marines (GM-LGS) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Unité de recherche Géosciences Marines (Ifremer) (GM) Géosciences Environnement Toulouse (GET) Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-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) |
format |
Article in Journal/Newspaper |
author |
Riboulot, Vincent Ker, Stephan Sultan, Nabil Thomas, Yannick Marsset, Bruno Scalabrin, Carla Ruffine, Livio Boulart, Cédric Ion, Gabriel |
author_facet |
Riboulot, Vincent Ker, Stephan Sultan, Nabil Thomas, Yannick Marsset, Bruno Scalabrin, Carla Ruffine, Livio Boulart, Cédric Ion, Gabriel |
author_sort |
Riboulot, Vincent |
title |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
title_short |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
title_full |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
title_fullStr |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
title_full_unstemmed |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea |
title_sort |
freshwater lake to salt-water sea causing widespread hydrate dissociation in the black sea |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691/document https://hal.archives-ouvertes.fr/hal-02387691/file/s41467-017-02271-z.pdf https://doi.org/10.1038/s41467-017-02271-z |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02387691 Nature Communications, Nature Publishing Group, 2018, 9 (1), ⟨10.1038/s41467-017-02271-z⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02271-z hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691 https://hal.archives-ouvertes.fr/hal-02387691/document https://hal.archives-ouvertes.fr/hal-02387691/file/s41467-017-02271-z.pdf doi:10.1038/s41467-017-02271-z |
op_rights |
http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.1038/s41467-017-02271-z |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
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1766158172161048576 |