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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fttriple:oai:gotriple.eu:10670/1.8igjg4 2023-05-15T18:00:52+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 https://doi.org/10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://archimer.ifremer.fr/doc/00139/25047/ en eng Elsevier France-editions Scientifiques Medicales Elsevier doi:10.1016/j.crte.2012.02.001 10670/1.8igjg4 https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://archimer.ifremer.fr/doc/00139/25047/ Archimer, archive institutionnelle de l'Ifremer Comptes Rendus Geoscience (1631-0713) (Elsevier France-editions Scientifiques Medicales Elsevier), 2012-05 , Vol. 344 , N. 5 , P. 267-276 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1016/j.crte.2012.02.001 2023-01-22T17:02:09Z 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. Text Planktonic foraminifera Unknown Comptes Rendus Geoscience 344 5 267 276 |
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envir geo |
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envir geo 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 |
envir geo |
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 |
Text |
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 |
url |
https://doi.org/10.1016/j.crte.2012.02.001 https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://archimer.ifremer.fr/doc/00139/25047/ |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Archimer, archive institutionnelle de l'Ifremer Comptes Rendus Geoscience (1631-0713) (Elsevier France-editions Scientifiques Medicales Elsevier), 2012-05 , Vol. 344 , N. 5 , P. 267-276 |
op_relation |
doi:10.1016/j.crte.2012.02.001 10670/1.8igjg4 https://archimer.ifremer.fr/doc/00139/25047/23181.pdf https://archimer.ifremer.fr/doc/00139/25047/ |
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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