Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications
We generated a high-resolution SSTMg/Ca record for the surface-dwelling planktonic foraminifera Globigerina bulloides from the core MD99-2346 collected in the Gulf of Lion, and compared it to that obtained using modern analogue techniques applied to fossil foraminiferal assemblages (SSTMAT). The two...
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ftarchimer:oai:archimer.ifremer.fr:25047 2023-05-15T18:00:32+02:00 Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications Boussetta, Soumaya Kallel, Nejib Bassinot, Franck Labeyrie, Laurent Duplessy, Jean-claude Caillon, Nicolas Dewilde, Fabien Rebaubier, Helene 2012-05 application/pdf https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://doi.org/10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/ eng eng Elsevier France-editions Scientifiques Medicales Elsevier https://archimer.ifremer.fr/doc/00139/25047/23181.pdf doi:10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/ 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. info:eu-repo/semantics/openAccess restricted use Comptes Rendus Geoscience (1631-0713) (Elsevier France-editions Scientifiques Medicales Elsevier), 2012-05 , Vol. 344 , N. 5 , P. 267-276 Mediterranean Mg/Ca Planktonic foraminifera Sea surface Temperature Salinity Diagenesis Vital effect text Publication info:eu-repo/semantics/article 2012 ftarchimer https://doi.org/10.1016/j.crte.2012.02.001 2021-09-23T20:23:05Z We generated a high-resolution SSTMg/Ca record for the surface-dwelling planktonic foraminifera Globigerina bulloides from the core MD99-2346 collected in the Gulf of Lion, and compared it to that obtained using modern analogue techniques applied to fossil foraminiferal assemblages (SSTMAT). The two temperature records display similar patterns during the last 28,000 years but the SSTMg/Ca estimates are several degrees warmer (similar to+4 degrees C) than SSTMAT. The temperature shift between SSTMg/Ca and SSTMAT remained relatively constant over time. This seems to exclude a bias on the Mg/Ca record associated with salinity or secondary Mg-rich calcite encrustation on the foraminiferal tests during early diagenesis. Therefore, anomalously high Mg/Ca suggests either: (1) the empirical equation for G. bulloides of Elderfield and Ganssen (2000) is incorrect; or (2) there is a specific Mediterranean genotypes of G. bulloides for which a specific Mg/Ca-temperature calibration is needed. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. Article in Journal/Newspaper Planktonic foraminifera Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Comptes Rendus Geoscience 344 5 267 276 |
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 |
Mediterranean Mg/Ca Planktonic foraminifera Sea surface Temperature Salinity Diagenesis Vital effect |
spellingShingle |
Mediterranean Mg/Ca Planktonic foraminifera Sea surface Temperature Salinity Diagenesis Vital effect Boussetta, Soumaya Kallel, Nejib Bassinot, Franck Labeyrie, Laurent Duplessy, Jean-claude Caillon, Nicolas Dewilde, Fabien Rebaubier, Helene Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
topic_facet |
Mediterranean Mg/Ca Planktonic foraminifera Sea surface Temperature Salinity Diagenesis Vital effect |
description |
We generated a high-resolution SSTMg/Ca record for the surface-dwelling planktonic foraminifera Globigerina bulloides from the core MD99-2346 collected in the Gulf of Lion, and compared it to that obtained using modern analogue techniques applied to fossil foraminiferal assemblages (SSTMAT). The two temperature records display similar patterns during the last 28,000 years but the SSTMg/Ca estimates are several degrees warmer (similar to+4 degrees C) than SSTMAT. The temperature shift between SSTMg/Ca and SSTMAT remained relatively constant over time. This seems to exclude a bias on the Mg/Ca record associated with salinity or secondary Mg-rich calcite encrustation on the foraminiferal tests during early diagenesis. Therefore, anomalously high Mg/Ca suggests either: (1) the empirical equation for G. bulloides of Elderfield and Ganssen (2000) is incorrect; or (2) there is a specific Mediterranean genotypes of G. bulloides for which a specific Mg/Ca-temperature calibration is needed. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Boussetta, Soumaya Kallel, Nejib Bassinot, Franck Labeyrie, Laurent Duplessy, Jean-claude Caillon, Nicolas Dewilde, Fabien Rebaubier, Helene |
author_facet |
Boussetta, Soumaya Kallel, Nejib Bassinot, Franck Labeyrie, Laurent Duplessy, Jean-claude Caillon, Nicolas Dewilde, Fabien Rebaubier, Helene |
author_sort |
Boussetta, Soumaya |
title |
Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
title_short |
Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
title_full |
Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
title_fullStr |
Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
title_full_unstemmed |
Mg/Ca-paleothermometry in the western Mediterranean Sea on planktonic foraminifer species Globigerina bulloides: Constraints and implications |
title_sort |
mg/ca-paleothermometry in the western mediterranean sea on planktonic foraminifer species globigerina bulloides: constraints and implications |
publisher |
Elsevier France-editions Scientifiques Medicales Elsevier |
publishDate |
2012 |
url |
https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://doi.org/10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/ |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Comptes Rendus Geoscience (1631-0713) (Elsevier France-editions Scientifiques Medicales Elsevier), 2012-05 , Vol. 344 , N. 5 , P. 267-276 |
op_relation |
https://archimer.ifremer.fr/doc/00139/25047/23181.pdf doi:10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/ |
op_rights |
2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.crte.2012.02.001 |
container_title |
Comptes Rendus Geoscience |
container_volume |
344 |
container_issue |
5 |
container_start_page |
267 |
op_container_end_page |
276 |
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1766169664639991808 |