Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures
WOS:000380842800001 International audience Methane cold seep systems typically exhibit extensive buildups of authigenic carbonate minerals, resulting from local increases in alkalinity driven by methane oxidation. Here, we demonstrate that modern seep authigenic carbonates exhibit anomalously low cl...
Published in: | Nature Communications |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Online Access: | https://hal.archives-ouvertes.fr/hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170/document https://hal.archives-ouvertes.fr/hal-02566170/file/ncomms12274.pdf https://doi.org/10.1038/ncomms12274 |
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ftunivnantes:oai:HAL:hal-02566170v1 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
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English |
topic |
ACL sediments authigenic carbonates cascadia margin cold-seeps convergent margin eel river-basin hydrocarbon seeps norwegian sea offshore northern california subduction zone [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
ACL sediments authigenic carbonates cascadia margin cold-seeps convergent margin eel river-basin hydrocarbon seeps norwegian sea offshore northern california subduction zone [SDE.BE]Environmental Sciences/Biodiversity and Ecology Loyd, S. J. Sample, J. Tripati, R. E. Defliese, W. F. Brooks, K. Hovland, M. Torres, M. Marlow, J. Hancock, L. G. Martin, R. Lyons, T. Tripati, A. E. Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
topic_facet |
ACL sediments authigenic carbonates cascadia margin cold-seeps convergent margin eel river-basin hydrocarbon seeps norwegian sea offshore northern california subduction zone [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
WOS:000380842800001 International audience Methane cold seep systems typically exhibit extensive buildups of authigenic carbonate minerals, resulting from local increases in alkalinity driven by methane oxidation. Here, we demonstrate that modern seep authigenic carbonates exhibit anomalously low clumped isotope values (Delta(47)), as much as similar to 0.2 parts per thousand lower than expected values. In modern seeps, this range of disequilibrium translates into apparent temperatures that are always warmer than ambient temperatures, by up to 50 degrees C. We examine various mechanisms that may induce disequilibrium behaviour in modern seep carbonates, and suggest that the observed values result from several factors including kinetic isotopic effects during methane oxidation, mixing of inorganic carbon pools, pH effects and rapid precipitation. Ancient seep carbonates studied here also exhibit potential disequilibrium signals. Ultimately, these findings indicate the predominance of disequilibrium clumped isotope behaviour in modern cold seep carbonates that must be considered when characterizing environmental conditions in both modern and ancient cold seep settings. |
author2 |
Department of Geological Sciences Fullerton California State University Fullerton (CSU) Department of Earth, Planetary and Space Sciences Los Angeles (EPSS) University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Northern Arizona University Flagstaff Department of Atmospheric and Oceanic Sciences Los Angeles (AOS) 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) Centre for Geobiology Bergen University of Bergen (UiB) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Division of Geological and Planetary Sciences Pasadena California Institute of Technology (CALTECH) Department of Earth and Space Sciences Seattle University of Washington Seattle Department of Earth Sciences Riverside University of California Riverside (UC Riverside) |
format |
Article in Journal/Newspaper |
author |
Loyd, S. J. Sample, J. Tripati, R. E. Defliese, W. F. Brooks, K. Hovland, M. Torres, M. Marlow, J. Hancock, L. G. Martin, R. Lyons, T. Tripati, A. E. |
author_facet |
Loyd, S. J. Sample, J. Tripati, R. E. Defliese, W. F. Brooks, K. Hovland, M. Torres, M. Marlow, J. Hancock, L. G. Martin, R. Lyons, T. Tripati, A. E. |
author_sort |
Loyd, S. J. |
title |
Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
title_short |
Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
title_full |
Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
title_fullStr |
Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
title_full_unstemmed |
Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
title_sort |
methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.archives-ouvertes.fr/hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170/document https://hal.archives-ouvertes.fr/hal-02566170/file/ncomms12274.pdf https://doi.org/10.1038/ncomms12274 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Norwegian Sea |
genre_facet |
Norwegian Sea |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02566170 Nature Communications, 2016, 7, pp.12274. ⟨10.1038/ncomms12274⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms12274 hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170/document https://hal.archives-ouvertes.fr/hal-02566170/file/ncomms12274.pdf doi:10.1038/ncomms12274 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1038/ncomms12274 |
container_title |
Nature Communications |
container_volume |
7 |
container_issue |
1 |
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1766151393917272064 |
spelling |
ftunivnantes:oai:HAL:hal-02566170v1 2023-05-15T17:47:05+02:00 Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures Loyd, S. J. Sample, J. Tripati, R. E. Defliese, W. F. Brooks, K. Hovland, M. Torres, M. Marlow, J. Hancock, L. G. Martin, R. Lyons, T. Tripati, A. E. Department of Geological Sciences Fullerton California State University Fullerton (CSU) Department of Earth, Planetary and Space Sciences Los Angeles (EPSS) University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Northern Arizona University Flagstaff Department of Atmospheric and Oceanic Sciences Los Angeles (AOS) 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) Centre for Geobiology Bergen University of Bergen (UiB) College of Earth, Ocean and Atmospheric Sciences Corvallis (CEOAS) Oregon State University (OSU) Division of Geological and Planetary Sciences Pasadena California Institute of Technology (CALTECH) Department of Earth and Space Sciences Seattle University of Washington Seattle Department of Earth Sciences Riverside University of California Riverside (UC Riverside) 2016 https://hal.archives-ouvertes.fr/hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170/document https://hal.archives-ouvertes.fr/hal-02566170/file/ncomms12274.pdf https://doi.org/10.1038/ncomms12274 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms12274 hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170 https://hal.archives-ouvertes.fr/hal-02566170/document https://hal.archives-ouvertes.fr/hal-02566170/file/ncomms12274.pdf doi:10.1038/ncomms12274 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess CC-BY-NC ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.archives-ouvertes.fr/hal-02566170 Nature Communications, 2016, 7, pp.12274. ⟨10.1038/ncomms12274⟩ ACL sediments authigenic carbonates cascadia margin cold-seeps convergent margin eel river-basin hydrocarbon seeps norwegian sea offshore northern california subduction zone [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2016 ftunivnantes https://doi.org/10.1038/ncomms12274 2022-11-30T00:52:28Z WOS:000380842800001 International audience Methane cold seep systems typically exhibit extensive buildups of authigenic carbonate minerals, resulting from local increases in alkalinity driven by methane oxidation. Here, we demonstrate that modern seep authigenic carbonates exhibit anomalously low clumped isotope values (Delta(47)), as much as similar to 0.2 parts per thousand lower than expected values. In modern seeps, this range of disequilibrium translates into apparent temperatures that are always warmer than ambient temperatures, by up to 50 degrees C. We examine various mechanisms that may induce disequilibrium behaviour in modern seep carbonates, and suggest that the observed values result from several factors including kinetic isotopic effects during methane oxidation, mixing of inorganic carbon pools, pH effects and rapid precipitation. Ancient seep carbonates studied here also exhibit potential disequilibrium signals. Ultimately, these findings indicate the predominance of disequilibrium clumped isotope behaviour in modern cold seep carbonates that must be considered when characterizing environmental conditions in both modern and ancient cold seep settings. Article in Journal/Newspaper Norwegian Sea Université de Nantes: HAL-UNIV-NANTES Norwegian Sea Nature Communications 7 1 |