Articles | Volume 13, issue 2
https://doi.org/10.5194/cp-13-149-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-13-149-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| Highlight paper
| 
24 Feb 2017
Research article | Highlight paper |
| 24 Feb 2017
A record of Neogene seawater δ11B reconstructed from paired δ11B analyses on benthic and planktic foraminifera
Rosanna Greenop
CORRESPONDING AUTHOR
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
School of Geography & Geosciences,
Irvine Building, University of St Andrews, North Street, St
Andrews, KY16 9AL, UK
Mathis P. Hain
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
Sindia M. Sosdian
School of Earth & Ocean Sciences, Cardiff
University, Cardiff, CF10 3AT, UK
Kevin I. C. Oliver
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
Philip Goodwin
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
Thomas B. Chalk
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
Department of Physical
Oceanography, Woods Hole Oceanographic Institution, Woods Hole,
Massachusetts, USA
Caroline H. Lear
School of Earth & Ocean Sciences, Cardiff
University, Cardiff, CF10 3AT, UK
Paul A. Wilson
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
Gavin L. Foster
Ocean and Earth Science, National Oceanography Centre Southampton,
University of Southampton, Waterfront Campus, European Way,
Southampton SO14 3ZH, UK
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Cited
36 citations as recorded by crossref.
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- Early Pleistocene Obliquity‐Scale pCO2 Variability at ~1.5 Million Years Ago K. Dyez et al. 10.1029/2018PA003349
- Evolution of paleo-climate and seawater pH from the late Permian to postindustrial periods recorded by boron isotopes and B/Ca in biogenic carbonates H. Wei et al. 10.1016/j.earscirev.2021.103546
- Late Miocene cooling coupled to carbon dioxide with Pleistocene-like climate sensitivity R. Brown et al. 10.1038/s41561-022-00982-7
- Robust Constraints on Past CO2 Climate Forcing From the Boron Isotope Proxy M. Hain et al. 10.1029/2018PA003362
- Ocean acidification signals through deep time: A review of proxies S. Patra & J. Punekar 10.1016/j.eve.2024.100056
- Orbital Forcing, Ice Volume, and CO2 Across the Oligocene‐Miocene Transition R. Greenop et al. 10.1029/2018PA003420
- Toward a Cenozoic history of atmospheric CO 2 B. Hönisch et al. 10.1126/science.adi5177
- Neogene cooling driven by land surface reactivity rather than increased weathering fluxes J. Caves Rugenstein et al. 10.1038/s41586-019-1332-y
- Evidence of a South Asian Proto‐Monsoon During the Oligocene‐Miocene Transition C. Beasley et al. 10.1029/2021PA004278
- Atmospheric CO2 over the Past 66 Million Years from Marine Archives J. Rae et al. 10.1146/annurev-earth-082420-063026
- Warm deep-sea temperatures across Eocene Thermal Maximum 2 from clumped isotope thermometry T. Agterhuis et al. 10.1038/s43247-022-00350-8
- High precision MC-ICP-MS measurements of11B/10B ratios from ng amounts of boron in carbonate samples using microsublimation and direct injection (μ-dDIHEN) M. Buisson et al. 10.1039/D1JA00109D
- Atmospheric CO2 Estimates for the Late Oligocene and Early Miocene Using Multi‐Species Cross‐Calibrations of Boron Isotopes L. Anderson et al. 10.1029/2022PA004569
- Resetting of Shallow-Water Carbonate Boron Isotope Values During Marine Burial Diagenesis M. Zhao et al. 10.2475/001c.91398
- Atmospheric CO2 during the Mid-Piacenzian Warm Period and the M2 glaciation E. de la Vega et al. 10.1038/s41598-020-67154-8
- The Brachiopod δ11B Record Across the Carboniferous‐Permian Climate Transition S. Legett et al. 10.1029/2019PA003838
- Atmospheric carbon dioxide variations across the middle Miocene climate transition M. Raitzsch et al. 10.5194/cp-17-703-2021
- Reconstructing CO2 uptake capacity and pH dynamics in the Middle Ordovician Taebaeksan Basin, Korea S. Bang & Y. Huh 10.1016/j.palaeo.2024.112520
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- The Eocene–Oligocene transition: a review of marine and terrestrial proxy data, models and model–data comparisons D. Hutchinson et al. 10.5194/cp-17-269-2021
- Marine Ooid Sizes Record Phanerozoic Seawater Carbonate Chemistry E. Trower et al. 10.1029/2022GL100800
- Orbital CO2 reconstruction using boron isotopes during the late Pleistocene, an assessment of accuracy E. de la Vega et al. 10.5194/cp-19-2493-2023
- Constraining the evolution of Neogene ocean carbonate chemistry using the boron isotope pH proxy S. Sosdian et al. 10.1016/j.epsl.2018.06.017
- Application of 1013 ohm Faraday cup current amplifiers for boron isotopic analyses by solution mode and laser ablation multicollector inductively coupled plasma mass spectrometry N. Lloyd et al. 10.1002/rcm.8009
- Revisiting the Middle Eocene Climatic Optimum “Carbon Cycle Conundrum” With New Estimates of Atmospheric pCO2 From Boron Isotopes M. Henehan et al. 10.1029/2019PA003713
- The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database C. Hollis et al. 10.5194/gmd-12-3149-2019
- Atmospheric CO2 estimates for the Miocene to Pleistocene based on foraminiferal δ11B at Ocean Drilling Program Sites 806 and 807 in the Western Equatorial Pacific M. Guillermic et al. 10.5194/cp-18-183-2022
- Tropical Sea Surface Temperatures Following the Middle Miocene Climate Transition From Laser‐Ablation ICP‐MS Analysis of Glassy Foraminifera M. Nairn et al. 10.1029/2020PA004165
- Cenozoic evolution of deep ocean temperature from clumped isotope thermometry A. Meckler et al. 10.1126/science.abk0604
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- Coupled Southern Ocean cooling and Antarctic ice sheet expansion during the middle Miocene T. Leutert et al. 10.1038/s41561-020-0623-0
- Isotope evidence for multiple sources of B and Cl in Middle Miocene (Badenian) evaporites, Carpathian Mountains Y. Zhao et al. 10.1016/j.apgeochem.2020.104819
- A new boron isotope-pH calibration for Orbulina universa, with implications for understanding and accounting for ‘vital effects’ M. Henehan et al. 10.1016/j.epsl.2016.09.024
35 citations as recorded by crossref.
- Boron Isotopes: A “Paleo-pH Meter” for Tracking Ancient Atmospheric CO2 E. Rasbury & N. Hemming 10.2138/gselements.13.4.243
- Early Pleistocene Obliquity‐Scale pCO2 Variability at ~1.5 Million Years Ago K. Dyez et al. 10.1029/2018PA003349
- Evolution of paleo-climate and seawater pH from the late Permian to postindustrial periods recorded by boron isotopes and B/Ca in biogenic carbonates H. Wei et al. 10.1016/j.earscirev.2021.103546
- Late Miocene cooling coupled to carbon dioxide with Pleistocene-like climate sensitivity R. Brown et al. 10.1038/s41561-022-00982-7
- Robust Constraints on Past CO2 Climate Forcing From the Boron Isotope Proxy M. Hain et al. 10.1029/2018PA003362
- Ocean acidification signals through deep time: A review of proxies S. Patra & J. Punekar 10.1016/j.eve.2024.100056
- Orbital Forcing, Ice Volume, and CO2 Across the Oligocene‐Miocene Transition R. Greenop et al. 10.1029/2018PA003420
- Toward a Cenozoic history of atmospheric CO 2 B. Hönisch et al. 10.1126/science.adi5177
- Neogene cooling driven by land surface reactivity rather than increased weathering fluxes J. Caves Rugenstein et al. 10.1038/s41586-019-1332-y
- Evidence of a South Asian Proto‐Monsoon During the Oligocene‐Miocene Transition C. Beasley et al. 10.1029/2021PA004278
- Atmospheric CO2 over the Past 66 Million Years from Marine Archives J. Rae et al. 10.1146/annurev-earth-082420-063026
- Warm deep-sea temperatures across Eocene Thermal Maximum 2 from clumped isotope thermometry T. Agterhuis et al. 10.1038/s43247-022-00350-8
- High precision MC-ICP-MS measurements of11B/10B ratios from ng amounts of boron in carbonate samples using microsublimation and direct injection (μ-dDIHEN) M. Buisson et al. 10.1039/D1JA00109D
- Atmospheric CO2 Estimates for the Late Oligocene and Early Miocene Using Multi‐Species Cross‐Calibrations of Boron Isotopes L. Anderson et al. 10.1029/2022PA004569
- Resetting of Shallow-Water Carbonate Boron Isotope Values During Marine Burial Diagenesis M. Zhao et al. 10.2475/001c.91398
- Atmospheric CO2 during the Mid-Piacenzian Warm Period and the M2 glaciation E. de la Vega et al. 10.1038/s41598-020-67154-8
- The Brachiopod δ11B Record Across the Carboniferous‐Permian Climate Transition S. Legett et al. 10.1029/2019PA003838
- Atmospheric carbon dioxide variations across the middle Miocene climate transition M. Raitzsch et al. 10.5194/cp-17-703-2021
- Reconstructing CO2 uptake capacity and pH dynamics in the Middle Ordovician Taebaeksan Basin, Korea S. Bang & Y. Huh 10.1016/j.palaeo.2024.112520
- Geothermal input significantly influences riverine and oceanic boron budgets J. Xiao et al. 10.1016/j.epsl.2023.118397
- Pliocene decoupling of equatorial Pacific temperature and pH gradients M. Shankle et al. 10.1038/s41586-021-03884-7
- The Eocene–Oligocene transition: a review of marine and terrestrial proxy data, models and model–data comparisons D. Hutchinson et al. 10.5194/cp-17-269-2021
- Marine Ooid Sizes Record Phanerozoic Seawater Carbonate Chemistry E. Trower et al. 10.1029/2022GL100800
- Orbital CO2 reconstruction using boron isotopes during the late Pleistocene, an assessment of accuracy E. de la Vega et al. 10.5194/cp-19-2493-2023
- Constraining the evolution of Neogene ocean carbonate chemistry using the boron isotope pH proxy S. Sosdian et al. 10.1016/j.epsl.2018.06.017
- Application of 1013 ohm Faraday cup current amplifiers for boron isotopic analyses by solution mode and laser ablation multicollector inductively coupled plasma mass spectrometry N. Lloyd et al. 10.1002/rcm.8009
- Revisiting the Middle Eocene Climatic Optimum “Carbon Cycle Conundrum” With New Estimates of Atmospheric pCO2 From Boron Isotopes M. Henehan et al. 10.1029/2019PA003713
- The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database C. Hollis et al. 10.5194/gmd-12-3149-2019
- Atmospheric CO2 estimates for the Miocene to Pleistocene based on foraminiferal δ11B at Ocean Drilling Program Sites 806 and 807 in the Western Equatorial Pacific M. Guillermic et al. 10.5194/cp-18-183-2022
- Tropical Sea Surface Temperatures Following the Middle Miocene Climate Transition From Laser‐Ablation ICP‐MS Analysis of Glassy Foraminifera M. Nairn et al. 10.1029/2020PA004165
- Cenozoic evolution of deep ocean temperature from clumped isotope thermometry A. Meckler et al. 10.1126/science.abk0604
- The pH dependence of the isotopic composition of boron adsorbed on amorphous silica G. Saldi et al. 10.1016/j.gca.2021.05.052
- Isotopic history of seawater: the stable isotope character of the global ocean at present and in the geological past J. Hoefs & R. Harmon 10.1080/10256016.2023.2271127
- Coupled Southern Ocean cooling and Antarctic ice sheet expansion during the middle Miocene T. Leutert et al. 10.1038/s41561-020-0623-0
- Isotope evidence for multiple sources of B and Cl in Middle Miocene (Badenian) evaporites, Carpathian Mountains Y. Zhao et al. 10.1016/j.apgeochem.2020.104819
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Discussed (final revised paper)
Latest update: 13 Jul 2025
Short summary
Understanding the boron isotopic composition of seawater (δ11Bsw) is key to calculating absolute estimates of CO2 using the boron isotope pH proxy. Here we use the boron isotope gradient, along with an estimate of pH gradient, between the surface and deep ocean to show that the δ11Bsw varies by ~ 2 ‰ over the past 23 million years. This new record has implications for both δ11Bsw and CO2 records and understanding changes in the ocean isotope composition of a number of ions through time.
Understanding the boron isotopic composition of seawater (δ11Bsw) is key to calculating...
