Deep-dwelling foraminifera as thermocline temperature recorders
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 d...
Published in: | Geochemistry, Geophysics, Geosystems |
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Language: | English |
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Amer Geophysical Union
2007
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Online Access: | https://archimer.ifremer.fr/doc/00236/34727/33178.pdf https://doi.org/10.1029/2006GC001474 https://archimer.ifremer.fr/doc/00236/34727/ |
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ftarchimer:oai:archimer.ifremer.fr:34727 2023-05-15T17:29:30+02:00 Deep-dwelling foraminifera as thermocline temperature recorders Cleroux, Caroline Cortijo, Elsa Duplessy, Jean-claude Zahn, Rainer 2007-04-25 application/pdf https://archimer.ifremer.fr/doc/00236/34727/33178.pdf https://doi.org/10.1029/2006GC001474 https://archimer.ifremer.fr/doc/00236/34727/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00236/34727/33178.pdf doi:10.1029/2006GC001474 https://archimer.ifremer.fr/doc/00236/34727/ Copyright 2007 by the American Geophysical Union info:eu-repo/semantics/openAccess restricted use Geochemistry Geophysics Geosystems (1525-2027) (Amer Geophysical Union), 2007-04-25 , Vol. 8 , N. 4 , P. 1-19 deep-dwelling foraminifera depth habitat isotopic temperature thermocline North Atlantic Mauritanian upwelling ecological prediction stable isotopes micropaleontology text Publication info:eu-repo/semantics/article 2007 ftarchimer https://doi.org/10.1029/2006GC001474 2021-09-23T20:25:26Z 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 degrees 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 delta(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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Geochemistry, Geophysics, Geosystems 8 4 n/a n/a |
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-dwelling foraminifera depth habitat isotopic temperature thermocline North Atlantic Mauritanian upwelling ecological prediction stable isotopes micropaleontology |
spellingShingle |
deep-dwelling foraminifera depth habitat isotopic temperature thermocline North Atlantic Mauritanian upwelling ecological prediction stable isotopes micropaleontology Cleroux, Caroline Cortijo, Elsa Duplessy, Jean-claude Zahn, Rainer Deep-dwelling foraminifera as thermocline temperature recorders |
topic_facet |
deep-dwelling foraminifera depth habitat isotopic temperature thermocline North Atlantic Mauritanian upwelling ecological prediction stable isotopes micropaleontology |
description |
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 degrees 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 delta(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. |
format |
Article in Journal/Newspaper |
author |
Cleroux, Caroline Cortijo, Elsa Duplessy, Jean-claude Zahn, Rainer |
author_facet |
Cleroux, Caroline Cortijo, Elsa Duplessy, Jean-claude Zahn, Rainer |
author_sort |
Cleroux, 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 |
Amer Geophysical Union |
publishDate |
2007 |
url |
https://archimer.ifremer.fr/doc/00236/34727/33178.pdf https://doi.org/10.1029/2006GC001474 https://archimer.ifremer.fr/doc/00236/34727/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geochemistry Geophysics Geosystems (1525-2027) (Amer Geophysical Union), 2007-04-25 , Vol. 8 , N. 4 , P. 1-19 |
op_relation |
https://archimer.ifremer.fr/doc/00236/34727/33178.pdf doi:10.1029/2006GC001474 https://archimer.ifremer.fr/doc/00236/34727/ |
op_rights |
Copyright 2007 by the American Geophysical Union info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2006GC001474 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
8 |
container_issue |
4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
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1766123631034761216 |