Planktonic foraminiferal Cd/Ca ratios ...
Records of Cd/Ca in planktonic foraminiferal calcite of Globigerinoides bulloides in cores from the Subantarctic region of the Southern Ocean show large glacial-interglacial variations with lower Cd/Ca (by 0.06-0.10 µmol/mol) at glacial times. Interpretation of these records in terms of lower dissol...
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Online Access: | https://dx.doi.org/10.1594/pangaea.856843 https://doi.pangaea.de/10.1594/PANGAEA.856843 |
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ftdatacite:10.1594/pangaea.856843 2024-09-30T14:39:35+00:00 Planktonic foraminiferal Cd/Ca ratios ... Rickaby, Rosalind E M Elderfield, Henry 1999 application/zip https://dx.doi.org/10.1594/pangaea.856843 https://doi.pangaea.de/10.1594/PANGAEA.856843 en eng PANGAEA https://dx.doi.org/10.1029/1999pa900007 https://dx.doi.org/10.25921/f214-ja31 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Collection Supplementary Publication Series of Datasets article 1999 ftdatacite https://doi.org/10.1594/pangaea.85684310.1029/1999pa90000710.25921/f214-ja31 2024-09-02T08:36:09Z Records of Cd/Ca in planktonic foraminiferal calcite of Globigerinoides bulloides in cores from the Subantarctic region of the Southern Ocean show large glacial-interglacial variations with lower Cd/Ca (by 0.06-0.10 µmol/mol) at glacial times. Interpretation of these records in terms of lower dissolved phosphate and inferred higher glacial nutrient utilization has significant implications for glacial atmospheric carbon dioxide (pCO2) draw-down. However, box core-top data for G. bulloides in the North Atlantic suggest that the incorporation of Cd into planktonic foraminifera relative to seawater (DCd) is temperature sensitive (DCd=0.637 exp 0.15T). When the Subantarctic planktonic Cd/Ca records are corrected for this temperature dependence, they show little or no glacial-interglacial diferences. If, as seems likely, this observation can be interpreted to indicate a minimal change (< 0.5 µmol/kg) in surface water phosphate concentrations, then the explanation for lowered glacial pCO2 must be looked for ... : Supplement to: Rickaby, Rosalind E M; Elderfield, Henry (1999): Planktonic foraminiferal Cd/Ca: Paleonutrients or paleotemperature? Paleoceanography, 14(3), 293-303 ... Article in Journal/Newspaper North Atlantic Planktonic foraminifera Southern Ocean DataCite Southern Ocean |
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ftdatacite |
language |
English |
description |
Records of Cd/Ca in planktonic foraminiferal calcite of Globigerinoides bulloides in cores from the Subantarctic region of the Southern Ocean show large glacial-interglacial variations with lower Cd/Ca (by 0.06-0.10 µmol/mol) at glacial times. Interpretation of these records in terms of lower dissolved phosphate and inferred higher glacial nutrient utilization has significant implications for glacial atmospheric carbon dioxide (pCO2) draw-down. However, box core-top data for G. bulloides in the North Atlantic suggest that the incorporation of Cd into planktonic foraminifera relative to seawater (DCd) is temperature sensitive (DCd=0.637 exp 0.15T). When the Subantarctic planktonic Cd/Ca records are corrected for this temperature dependence, they show little or no glacial-interglacial diferences. If, as seems likely, this observation can be interpreted to indicate a minimal change (< 0.5 µmol/kg) in surface water phosphate concentrations, then the explanation for lowered glacial pCO2 must be looked for ... : Supplement to: Rickaby, Rosalind E M; Elderfield, Henry (1999): Planktonic foraminiferal Cd/Ca: Paleonutrients or paleotemperature? Paleoceanography, 14(3), 293-303 ... |
format |
Article in Journal/Newspaper |
author |
Rickaby, Rosalind E M Elderfield, Henry |
spellingShingle |
Rickaby, Rosalind E M Elderfield, Henry Planktonic foraminiferal Cd/Ca ratios ... |
author_facet |
Rickaby, Rosalind E M Elderfield, Henry |
author_sort |
Rickaby, Rosalind E M |
title |
Planktonic foraminiferal Cd/Ca ratios ... |
title_short |
Planktonic foraminiferal Cd/Ca ratios ... |
title_full |
Planktonic foraminiferal Cd/Ca ratios ... |
title_fullStr |
Planktonic foraminiferal Cd/Ca ratios ... |
title_full_unstemmed |
Planktonic foraminiferal Cd/Ca ratios ... |
title_sort |
planktonic foraminiferal cd/ca ratios ... |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://dx.doi.org/10.1594/pangaea.856843 https://doi.pangaea.de/10.1594/PANGAEA.856843 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Planktonic foraminifera Southern Ocean |
genre_facet |
North Atlantic Planktonic foraminifera Southern Ocean |
op_relation |
https://dx.doi.org/10.1029/1999pa900007 https://dx.doi.org/10.25921/f214-ja31 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85684310.1029/1999pa90000710.25921/f214-ja31 |
_version_ |
1811642195301629952 |