Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata
International audience [1] Laser-ablation inductively coupled plasma-mass spectrometry microanalyses of Mg/Ca across individual final chambers of three planktonic foraminifera species, Globigerinoides ruber, G. sacculifer, and Pulleniatina obliquiloculata, reveal significant interspecies differences...
Published in: | Paleoceanography |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2009
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Online Access: | https://hal.science/hal-02921364 https://hal.science/hal-02921364/document https://hal.science/hal-02921364/file/2008PA001664.pdf https://doi.org/10.1029/2008PA001664 |
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ftinsu:oai:HAL:hal-02921364v1 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Sadekov, Aleksey Eggins, Stephen de Deckker, Patrick Ninnemann, Ulysses Kuhnt, Wolfgang Bassinot, Franck Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience [1] Laser-ablation inductively coupled plasma-mass spectrometry microanalyses of Mg/Ca across individual final chambers of three planktonic foraminifera species, Globigerinoides ruber, G. sacculifer, and Pulleniatina obliquiloculata, reveal significant interspecies differences in test Mg concentrations. Whereas these three species have similar Mg/Ca values at low sea surface temperatures ($22°C), they diverge markedly at high sea surface temperatures ($29°C). Explanations for these differences in species Mg/Ca values based on detailed comparison of species intratest Mg/Ca distributions suggest that compositional variability within tests cannot account for the observed deviation of species Mg/Ca values in warm-water equatorial regions. Multiple regression modeling and d 18 O analysis of Globigerinoides sacculifer tests indicate that interspecies differences in Mg/Ca values result from different depth habitats. The average Mg/Ca values of G. ruber final chambers reflect the temperature of the surface mixed layer (0-25 m), whereas those of G. sacculifer and Pulleniatina obliquiloculata correlate best with subsurface temperatures at 50-75 m and 100-125 m water depths, respectively. Mg/Ca calibration to the temperatures at these depths reveals a similar temperature control on Mg test composition in all species. Combining our results with Mg/Ca values from published culturing experiments, we derive a generalized equation for the effect of temperature and seawater salinity on foraminiferal Mg/Ca. We also show that the Mg/Ca composition of specific calcite layers within foraminiferal tests, including the low-Mg/Ca layers of Globigerinoides ruber and G. sacculifer and the cortex layer of Pulleniatina obliquiloculata, correlates with seawater temperature and can be used as an additional proxy for seawater temperature. Citation: Sadekov, A., S. M. Eggins, P. De Deckker, U. Ninnemann, W. Kuhnt, and F. Bassinot (2009), Surface and subsurface seawater temperature reconstruction using Mg/Ca ... |
author2 |
Research School of Earth Sciences ANU, Canberra (RSES) ANU College of Science Canberra Australian National University (ANU)-Australian National University (ANU) Department of Earth Science Bergen (UiB) University of Bergen (UiB) Institut für Geowissenschaften Kiel Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Sadekov, Aleksey Eggins, Stephen de Deckker, Patrick Ninnemann, Ulysses Kuhnt, Wolfgang Bassinot, Franck |
author_facet |
Sadekov, Aleksey Eggins, Stephen de Deckker, Patrick Ninnemann, Ulysses Kuhnt, Wolfgang Bassinot, Franck |
author_sort |
Sadekov, Aleksey |
title |
Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
title_short |
Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
title_full |
Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
title_fullStr |
Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
title_full_unstemmed |
Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata |
title_sort |
surface and subsurface seawater temperature reconstruction using mg/ca microanalysis of planktonic foraminifera globigerinoides ruber , globigerinoides sacculifer , and pulleniatina obliquiloculata |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-02921364 https://hal.science/hal-02921364/document https://hal.science/hal-02921364/file/2008PA001664.pdf https://doi.org/10.1029/2008PA001664 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02921364 Paleoceanography, 2009, 24 (3), ⟨10.1029/2008PA001664⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2008PA001664 hal-02921364 https://hal.science/hal-02921364 https://hal.science/hal-02921364/document https://hal.science/hal-02921364/file/2008PA001664.pdf doi:10.1029/2008PA001664 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2008PA001664 |
container_title |
Paleoceanography |
container_volume |
24 |
container_issue |
3 |
_version_ |
1797568243266748416 |
spelling |
ftinsu:oai:HAL:hal-02921364v1 2024-04-28T08:36:29+00:00 Surface and subsurface seawater temperature reconstruction using Mg/Ca microanalysis of planktonic foraminifera Globigerinoides ruber , Globigerinoides sacculifer , and Pulleniatina obliquiloculata Sadekov, Aleksey Eggins, Stephen de Deckker, Patrick Ninnemann, Ulysses Kuhnt, Wolfgang Bassinot, Franck Research School of Earth Sciences ANU, Canberra (RSES) ANU College of Science Canberra Australian National University (ANU)-Australian National University (ANU) Department of Earth Science Bergen (UiB) University of Bergen (UiB) Institut für Geowissenschaften Kiel Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Paléocéanographie (PALEOCEAN) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2009-09 https://hal.science/hal-02921364 https://hal.science/hal-02921364/document https://hal.science/hal-02921364/file/2008PA001664.pdf https://doi.org/10.1029/2008PA001664 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2008PA001664 hal-02921364 https://hal.science/hal-02921364 https://hal.science/hal-02921364/document https://hal.science/hal-02921364/file/2008PA001664.pdf doi:10.1029/2008PA001664 info:eu-repo/semantics/OpenAccess ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02921364 Paleoceanography, 2009, 24 (3), ⟨10.1029/2008PA001664⟩ [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 2009 ftinsu https://doi.org/10.1029/2008PA001664 2024-04-05T00:40:57Z International audience [1] Laser-ablation inductively coupled plasma-mass spectrometry microanalyses of Mg/Ca across individual final chambers of three planktonic foraminifera species, Globigerinoides ruber, G. sacculifer, and Pulleniatina obliquiloculata, reveal significant interspecies differences in test Mg concentrations. Whereas these three species have similar Mg/Ca values at low sea surface temperatures ($22°C), they diverge markedly at high sea surface temperatures ($29°C). Explanations for these differences in species Mg/Ca values based on detailed comparison of species intratest Mg/Ca distributions suggest that compositional variability within tests cannot account for the observed deviation of species Mg/Ca values in warm-water equatorial regions. Multiple regression modeling and d 18 O analysis of Globigerinoides sacculifer tests indicate that interspecies differences in Mg/Ca values result from different depth habitats. The average Mg/Ca values of G. ruber final chambers reflect the temperature of the surface mixed layer (0-25 m), whereas those of G. sacculifer and Pulleniatina obliquiloculata correlate best with subsurface temperatures at 50-75 m and 100-125 m water depths, respectively. Mg/Ca calibration to the temperatures at these depths reveals a similar temperature control on Mg test composition in all species. Combining our results with Mg/Ca values from published culturing experiments, we derive a generalized equation for the effect of temperature and seawater salinity on foraminiferal Mg/Ca. We also show that the Mg/Ca composition of specific calcite layers within foraminiferal tests, including the low-Mg/Ca layers of Globigerinoides ruber and G. sacculifer and the cortex layer of Pulleniatina obliquiloculata, correlates with seawater temperature and can be used as an additional proxy for seawater temperature. Citation: Sadekov, A., S. M. Eggins, P. De Deckker, U. Ninnemann, W. Kuhnt, and F. Bassinot (2009), Surface and subsurface seawater temperature reconstruction using Mg/Ca ... Article in Journal/Newspaper Planktonic foraminifera Institut national des sciences de l'Univers: HAL-INSU Paleoceanography 24 3 |