Calibration of the carbon isotope composition (δ13C) of benthic foraminifera
The carbon isotope composition (δC) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump, and the global carbon cycle and is reflected by the δC of foraminifera tests. Here more than 1700 δC observations of the benthic foraminifera genus Cibicides from la...
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Online Access: | https://espace.library.uq.edu.au/view/UQ:502c245 |
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:502c245 2023-05-15T13:42:01+02:00 Calibration of the carbon isotope composition (δ13C) of benthic foraminifera Schmittner, Andreas Bostock, Helen C. Cartapanis, Olivier Curry, William B. Filipsson, Helena L. Galbraith, Eric D. Gottschalk, Julia Herguera, Juan Carlos Hoogakker, Babette Jaccard, Samuel L. Lisiecki, Lorraine E. Lund, David C. Martínez-Méndez, Gema Lynch-Stieglitz, Jean Mackensen, Andreas Michel, Elisabeth Mix, Alan C. Oppo, Delia W. Peterson, Carlye D. Repschläger, Janne Sikes, Elisabeth L. Spero, Howard J. Waelbroeck, Claire 2017-06-01 https://espace.library.uq.edu.au/view/UQ:502c245 eng eng Wiley-Blackwell Publishing doi:10.1002/2016PA003072 issn:1944-9186 issn:0883-8305 orcid:0000-0002-8903-8958 Not set 1634719 0926735 1125181 OCE-1003500 PP00P2_144811 200021_163003 1440015 1125422 benthic calibration carbon foraminifera isotopes 1910 Oceanography 1911 Palaeontology Journal Article 2017 ftunivqespace https://doi.org/10.1002/2016PA003072 2020-12-22T14:38:00Z The carbon isotope composition (δC) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump, and the global carbon cycle and is reflected by the δC of foraminifera tests. Here more than 1700 δC observations of the benthic foraminifera genus Cibicides from late Holocene sediments (δC) are compiled and compared with newly updated estimates of the natural (preindustrial) water column δC of dissolved inorganic carbon (δC) as part of the international Ocean Circulation and Carbon Cycling (OC3) project. Using selection criteria based on the spatial distance between samples, we find high correlation between δC and δC, confirming earlier work. Regression analyses indicate significant carbonate ion (−2.6 ± 0.4) × 10‰/(μmol kg) [CO ] and pressure (−4.9 ± 1.7) × 10‰ m (depth) effects, which we use to propose a new global calibration for predicting δC from δC. This calibration is shown to remove some systematic regional biases and decrease errors compared with the one-to-one relationship (δC = δC). However, these effects and the error reductions are relatively small, which suggests that most conclusions from previous studies using a one-to-one relationship remain robust. The remaining standard error of the regression is generally σ ≅ 0.25‰, with larger values found in the southeast Atlantic and Antarctic (σ ≅ 0.4‰) and for species other than Cibicides wuellerstorfi. Discussion of species effects and possible sources of the remaining errors may aid future attempts to improve the use of the benthic δC record. Article in Journal/Newspaper Antarc* Antarctic The University of Queensland: UQ eSpace Antarctic Paleoceanography 32 6 512 530 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
benthic calibration carbon foraminifera isotopes 1910 Oceanography 1911 Palaeontology |
spellingShingle |
benthic calibration carbon foraminifera isotopes 1910 Oceanography 1911 Palaeontology Schmittner, Andreas Bostock, Helen C. Cartapanis, Olivier Curry, William B. Filipsson, Helena L. Galbraith, Eric D. Gottschalk, Julia Herguera, Juan Carlos Hoogakker, Babette Jaccard, Samuel L. Lisiecki, Lorraine E. Lund, David C. Martínez-Méndez, Gema Lynch-Stieglitz, Jean Mackensen, Andreas Michel, Elisabeth Mix, Alan C. Oppo, Delia W. Peterson, Carlye D. Repschläger, Janne Sikes, Elisabeth L. Spero, Howard J. Waelbroeck, Claire Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
topic_facet |
benthic calibration carbon foraminifera isotopes 1910 Oceanography 1911 Palaeontology |
description |
The carbon isotope composition (δC) of seawater provides valuable insight on ocean circulation, air-sea exchange, the biological pump, and the global carbon cycle and is reflected by the δC of foraminifera tests. Here more than 1700 δC observations of the benthic foraminifera genus Cibicides from late Holocene sediments (δC) are compiled and compared with newly updated estimates of the natural (preindustrial) water column δC of dissolved inorganic carbon (δC) as part of the international Ocean Circulation and Carbon Cycling (OC3) project. Using selection criteria based on the spatial distance between samples, we find high correlation between δC and δC, confirming earlier work. Regression analyses indicate significant carbonate ion (−2.6 ± 0.4) × 10‰/(μmol kg) [CO ] and pressure (−4.9 ± 1.7) × 10‰ m (depth) effects, which we use to propose a new global calibration for predicting δC from δC. This calibration is shown to remove some systematic regional biases and decrease errors compared with the one-to-one relationship (δC = δC). However, these effects and the error reductions are relatively small, which suggests that most conclusions from previous studies using a one-to-one relationship remain robust. The remaining standard error of the regression is generally σ ≅ 0.25‰, with larger values found in the southeast Atlantic and Antarctic (σ ≅ 0.4‰) and for species other than Cibicides wuellerstorfi. Discussion of species effects and possible sources of the remaining errors may aid future attempts to improve the use of the benthic δC record. |
format |
Article in Journal/Newspaper |
author |
Schmittner, Andreas Bostock, Helen C. Cartapanis, Olivier Curry, William B. Filipsson, Helena L. Galbraith, Eric D. Gottschalk, Julia Herguera, Juan Carlos Hoogakker, Babette Jaccard, Samuel L. Lisiecki, Lorraine E. Lund, David C. Martínez-Méndez, Gema Lynch-Stieglitz, Jean Mackensen, Andreas Michel, Elisabeth Mix, Alan C. Oppo, Delia W. Peterson, Carlye D. Repschläger, Janne Sikes, Elisabeth L. Spero, Howard J. Waelbroeck, Claire |
author_facet |
Schmittner, Andreas Bostock, Helen C. Cartapanis, Olivier Curry, William B. Filipsson, Helena L. Galbraith, Eric D. Gottschalk, Julia Herguera, Juan Carlos Hoogakker, Babette Jaccard, Samuel L. Lisiecki, Lorraine E. Lund, David C. Martínez-Méndez, Gema Lynch-Stieglitz, Jean Mackensen, Andreas Michel, Elisabeth Mix, Alan C. Oppo, Delia W. Peterson, Carlye D. Repschläger, Janne Sikes, Elisabeth L. Spero, Howard J. Waelbroeck, Claire |
author_sort |
Schmittner, Andreas |
title |
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
title_short |
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
title_full |
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
title_fullStr |
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
title_full_unstemmed |
Calibration of the carbon isotope composition (δ13C) of benthic foraminifera |
title_sort |
calibration of the carbon isotope composition (δ13c) of benthic foraminifera |
publisher |
Wiley-Blackwell Publishing |
publishDate |
2017 |
url |
https://espace.library.uq.edu.au/view/UQ:502c245 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
doi:10.1002/2016PA003072 issn:1944-9186 issn:0883-8305 orcid:0000-0002-8903-8958 Not set 1634719 0926735 1125181 OCE-1003500 PP00P2_144811 200021_163003 1440015 1125422 |
op_doi |
https://doi.org/10.1002/2016PA003072 |
container_title |
Paleoceanography |
container_volume |
32 |
container_issue |
6 |
container_start_page |
512 |
op_container_end_page |
530 |
_version_ |
1766161834380886016 |