Deep-dwelling foraminifera as thermocline temperature recorders
International audience [1] We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. We compared calculated isotopic temperatures wi...
Published in: | Geochemistry, Geophysics, Geosystems |
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Online Access: | https://hal.archives-ouvertes.fr/hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545/document https://hal.archives-ouvertes.fr/hal-02958545/file/2006GC001474.pdf https://doi.org/10.1029/2006GC001474 |
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ftccsdartic:oai:HAL:hal-02958545v1 2023-05-15T17:29:56+02:00 Deep-dwelling foraminifera as thermocline temperature recorders Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Paléocéanographie (PALEOCEAN) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Institució Catalana de Recerca i Estudis Avançats (ICREA) 2007-04 https://hal.archives-ouvertes.fr/hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545/document https://hal.archives-ouvertes.fr/hal-02958545/file/2006GC001474.pdf https://doi.org/10.1029/2006GC001474 en eng HAL CCSD AGU and the Geochemical Society info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GC001474 hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545/document https://hal.archives-ouvertes.fr/hal-02958545/file/2006GC001474.pdf doi:10.1029/2006GC001474 info:eu-repo/semantics/OpenAccess ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.archives-ouvertes.fr/hal-02958545 Geochemistry, Geophysics, Geosystems, AGU and the Geochemical Society, 2007, 8 (4), pp.n/a-n/a. ⟨10.1029/2006GC001474⟩ Mauritanian upwelling North Atlantic isotopic temperature thermocline depth habitat deep-dwelling foraminifera [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2007 ftccsdartic https://doi.org/10.1029/2006GC001474 2021-12-19T00:52:16Z International audience [1] We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. We compared calculated isotopic temperatures with atlas temperatures and defined ecological models for each species. G. inflata and G. truncatulinoides live preferentially at the base of the seasonal thermocline. Under temperature stress, i.e., when the base of the seasonal thermocline is warmer than 16°C, G. inflata and G. truncatulinoides live deeper in the main thermocline. P. obliquiloculata inhabits the seasonal thermocline in warm regions. We tested our model using 10 cores along the Mauritanian upwelling and show that the comparison of d 18 O variations registered by the surficial species G. ruber and G. bulloides and the deep-dwelling species G. inflata evidences significant glacial-interglacial shifts of the Mauritanian upwelling cells. Article in Journal/Newspaper North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Geochemistry, Geophysics, Geosystems 8 4 n/a n/a |
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 |
Mauritanian upwelling North Atlantic isotopic temperature thermocline depth habitat deep-dwelling foraminifera [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Mauritanian upwelling North Atlantic isotopic temperature thermocline depth habitat deep-dwelling foraminifera [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer Deep-dwelling foraminifera as thermocline temperature recorders |
topic_facet |
Mauritanian upwelling North Atlantic isotopic temperature thermocline depth habitat deep-dwelling foraminifera [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience [1] We measured the oxygen isotopic composition of the deep-dwelling foraminiferal species G. inflata, G. truncatulinoides dextral and sinistral, and P. obliquiloculata in 29 modern core tops raised from the North Atlantic Ocean. We compared calculated isotopic temperatures with atlas temperatures and defined ecological models for each species. G. inflata and G. truncatulinoides live preferentially at the base of the seasonal thermocline. Under temperature stress, i.e., when the base of the seasonal thermocline is warmer than 16°C, G. inflata and G. truncatulinoides live deeper in the main thermocline. P. obliquiloculata inhabits the seasonal thermocline in warm regions. We tested our model using 10 cores along the Mauritanian upwelling and show that the comparison of d 18 O variations registered by the surficial species G. ruber and G. bulloides and the deep-dwelling species G. inflata evidences significant glacial-interglacial shifts of the Mauritanian upwelling cells. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Paléocéanographie (PALEOCEAN) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Institució Catalana de Recerca i Estudis Avançats (ICREA) |
format |
Article in Journal/Newspaper |
author |
Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer |
author_facet |
Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer |
author_sort |
Cléroux, Caroline |
title |
Deep-dwelling foraminifera as thermocline temperature recorders |
title_short |
Deep-dwelling foraminifera as thermocline temperature recorders |
title_full |
Deep-dwelling foraminifera as thermocline temperature recorders |
title_fullStr |
Deep-dwelling foraminifera as thermocline temperature recorders |
title_full_unstemmed |
Deep-dwelling foraminifera as thermocline temperature recorders |
title_sort |
deep-dwelling foraminifera as thermocline temperature recorders |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545/document https://hal.archives-ouvertes.fr/hal-02958545/file/2006GC001474.pdf https://doi.org/10.1029/2006GC001474 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.archives-ouvertes.fr/hal-02958545 Geochemistry, Geophysics, Geosystems, AGU and the Geochemical Society, 2007, 8 (4), pp.n/a-n/a. ⟨10.1029/2006GC001474⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2006GC001474 hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545 https://hal.archives-ouvertes.fr/hal-02958545/document https://hal.archives-ouvertes.fr/hal-02958545/file/2006GC001474.pdf doi:10.1029/2006GC001474 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2006GC001474 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
8 |
container_issue |
4 |
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n/a |
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1766125177875202048 |