Deep-dwelling forminifera 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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ftuabarcelonapb:oai:ddd.uab.cat:158138 2023-05-15T17:29:10+02:00 Deep-dwelling forminifera as thermocline temperature recorders Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer 2007 application/pdf https://ddd.uab.cat/record/158138 eng eng Geochemistry, geophysics, geosystems Vol. 8, Issue 4 (April 2007) https://ddd.uab.cat/record/158138 urn:10.1029/2006GC001474 urn:oai:ddd.uab.cat:158138 urn:scopus_id:49149118788 urn:wos_id:000246140300002 urn:oai:egreta.uab.cat:publications/a1640af9-9fcc-4490-9426-169dec11e79c open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ Deep-dwelling foraminifera Depth habitat Isotopic temperature Mauritanian upwelling North Atlantic Thermocline Article 2007 ftuabarcelonapb 2023-02-06T21:08:21Z 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 δ¹⁸O 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 Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB Geochemistry, Geophysics, Geosystems 8 4 n/a n/a |
institution |
Open Polar |
collection |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
op_collection_id |
ftuabarcelonapb |
language |
English |
topic |
Deep-dwelling foraminifera Depth habitat Isotopic temperature Mauritanian upwelling North Atlantic Thermocline |
spellingShingle |
Deep-dwelling foraminifera Depth habitat Isotopic temperature Mauritanian upwelling North Atlantic Thermocline Cléroux, Caroline Cortijo, Elsa Duplessy, Jean-Claude Zahn, Rainer Deep-dwelling forminifera as thermocline temperature recorders |
topic_facet |
Deep-dwelling foraminifera Depth habitat Isotopic temperature Mauritanian upwelling North Atlantic Thermocline |
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°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 δ¹⁸O 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 |
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 forminifera as thermocline temperature recorders |
title_short |
Deep-dwelling forminifera as thermocline temperature recorders |
title_full |
Deep-dwelling forminifera as thermocline temperature recorders |
title_fullStr |
Deep-dwelling forminifera as thermocline temperature recorders |
title_full_unstemmed |
Deep-dwelling forminifera as thermocline temperature recorders |
title_sort |
deep-dwelling forminifera as thermocline temperature recorders |
publishDate |
2007 |
url |
https://ddd.uab.cat/record/158138 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Geochemistry, geophysics, geosystems Vol. 8, Issue 4 (April 2007) https://ddd.uab.cat/record/158138 urn:10.1029/2006GC001474 urn:oai:ddd.uab.cat:158138 urn:scopus_id:49149118788 urn:wos_id:000246140300002 urn:oai:egreta.uab.cat:publications/a1640af9-9fcc-4490-9426-169dec11e79c |
op_rights |
open access Tots els drets reservats. https://rightsstatements.org/vocab/InC/1.0/ |
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Geochemistry, Geophysics, Geosystems |
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8 |
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4 |
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1766122795954077696 |