Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169
The sensitivity to temperature of Mg/Ca ratios in the shallow-infaunal benthic foraminifera Uvigerina spp. has been assessed. Core-top calibrations over ~1-20 °C show a range in sensitivity of 0.065-0.084 mmol/mol/°C but few data are available spanning the temperature range anticipated in deep-sea r...
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ftdatacite:10.1594/pangaea.817532 2023-05-15T18:24:58+02:00 Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 Elderfield, Henry Greaves, Mervyn Barker, S Hall, Ian R Tripati, Aradhna K Ferretti, Patrizia Crowhurst, Simon J Booth, Linda Daunt, C 2010 application/zip https://dx.doi.org/10.1594/pangaea.817532 https://doi.pangaea.de/10.1594/PANGAEA.817532 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.quascirev.2009.07.013 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2010 ftdatacite https://doi.org/10.1594/pangaea.817532 https://doi.org/10.1016/j.quascirev.2009.07.013 2022-02-08T16:24:46Z The sensitivity to temperature of Mg/Ca ratios in the shallow-infaunal benthic foraminifera Uvigerina spp. has been assessed. Core-top calibrations over ~1-20 °C show a range in sensitivity of 0.065-0.084 mmol/mol/°C but few data are available spanning the temperature range anticipated in deep-sea records over glacial-interglacial cycles. In contrast to epibenthic foraminiferal species, carbonate ion saturation appears not to affect Mg/Ca significantly. A method based on estimating the ratio of the temperature sensitivity of foraminiferal Mg/Ca to that of d18Ocalcite shows that sensitivity for Mg/Ca at the high end of the observed core-top range (~0.1 mmol/mol/°C) is required for consistency with LGM-Holocene differences in each property as constrained by independent proxy data. This is supported by a Mg/Ca record for Uvigerina spp. generated for the Southern Ocean over the past 440,000 years from Ocean Drilling Program Site 1123 (Chatham Rise, New Zealand). The record shows variability that correlates with climate oscillations. The LGM deep ocean temperature derived from the Mg/Ca record is -1.1 ± 0.3 °C. Transformation to temperature allows estimates to be made of changes in bottom water temperature and seawater d18O and comparison made with literature records. Analysis reveals a ~2.5-kyr lead in the record of temperature over calcite d18O and a longer lead over seawater d18O. This is a reflection of larger phase offsets at eccentricity periods; phase offsets at tilt and precession are within error zero. Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Mervyn ENVELOPE(65.307,65.307,-70.509,-70.509) New Zealand Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ocean Drilling Program ODP |
spellingShingle |
Ocean Drilling Program ODP Elderfield, Henry Greaves, Mervyn Barker, S Hall, Ian R Tripati, Aradhna K Ferretti, Patrizia Crowhurst, Simon J Booth, Linda Daunt, C Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
topic_facet |
Ocean Drilling Program ODP |
description |
The sensitivity to temperature of Mg/Ca ratios in the shallow-infaunal benthic foraminifera Uvigerina spp. has been assessed. Core-top calibrations over ~1-20 °C show a range in sensitivity of 0.065-0.084 mmol/mol/°C but few data are available spanning the temperature range anticipated in deep-sea records over glacial-interglacial cycles. In contrast to epibenthic foraminiferal species, carbonate ion saturation appears not to affect Mg/Ca significantly. A method based on estimating the ratio of the temperature sensitivity of foraminiferal Mg/Ca to that of d18Ocalcite shows that sensitivity for Mg/Ca at the high end of the observed core-top range (~0.1 mmol/mol/°C) is required for consistency with LGM-Holocene differences in each property as constrained by independent proxy data. This is supported by a Mg/Ca record for Uvigerina spp. generated for the Southern Ocean over the past 440,000 years from Ocean Drilling Program Site 1123 (Chatham Rise, New Zealand). The record shows variability that correlates with climate oscillations. The LGM deep ocean temperature derived from the Mg/Ca record is -1.1 ± 0.3 °C. Transformation to temperature allows estimates to be made of changes in bottom water temperature and seawater d18O and comparison made with literature records. Analysis reveals a ~2.5-kyr lead in the record of temperature over calcite d18O and a longer lead over seawater d18O. This is a reflection of larger phase offsets at eccentricity periods; phase offsets at tilt and precession are within error zero. |
format |
Article in Journal/Newspaper |
author |
Elderfield, Henry Greaves, Mervyn Barker, S Hall, Ian R Tripati, Aradhna K Ferretti, Patrizia Crowhurst, Simon J Booth, Linda Daunt, C |
author_facet |
Elderfield, Henry Greaves, Mervyn Barker, S Hall, Ian R Tripati, Aradhna K Ferretti, Patrizia Crowhurst, Simon J Booth, Linda Daunt, C |
author_sort |
Elderfield, Henry |
title |
Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
title_short |
Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
title_full |
Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
title_fullStr |
Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
title_full_unstemmed |
Mg/Ca and stable oxygen isotope ratios of Uvigerina spp. from the Southern Ocean, supplement to: Elderfield, Henry; Greaves, Mervyn; Barker, S; Hall, Ian R; Tripati, Aradhna K; Ferretti, Patrizia; Crowhurst, Simon J; Booth, Linda; Daunt, C (2010): A record of bottom water temperature and seawater d18O for the Southern Ocean over the past 440kyr based on Mg/Ca of benthic foraminiferal Uvigerina spp. Quaternary Science Reviews, 29(1-2), 160-169 |
title_sort |
mg/ca and stable oxygen isotope ratios of uvigerina spp. from the southern ocean, supplement to: elderfield, henry; greaves, mervyn; barker, s; hall, ian r; tripati, aradhna k; ferretti, patrizia; crowhurst, simon j; booth, linda; daunt, c (2010): a record of bottom water temperature and seawater d18o for the southern ocean over the past 440kyr based on mg/ca of benthic foraminiferal uvigerina spp. quaternary science reviews, 29(1-2), 160-169 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.817532 https://doi.pangaea.de/10.1594/PANGAEA.817532 |
long_lat |
ENVELOPE(65.307,65.307,-70.509,-70.509) |
geographic |
Mervyn New Zealand Southern Ocean |
geographic_facet |
Mervyn New Zealand Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.1016/j.quascirev.2009.07.013 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.817532 https://doi.org/10.1016/j.quascirev.2009.07.013 |
_version_ |
1766206053910839296 |