δ¹⁸O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3

Benthic foraminifera oxygen isotopes: The benthic isotope record was generated by the late N.J. Shackleton. Measurements were carried out in the Godwin Laboratory for Palaeoclimate Research (University of Cambridge), using a VG PRISM mass spectrometer. Where possible two or three separate analyses of different benthic species were made in each sample; a correction factor was applied according to the species and the average of all the corrected values at each level is shown in the figures. The following species were analysed, and adjusted as indicated: Cibicidoides sp.: +0.51; Uvigerina peregrina and similar specimens: 0.0; Globobulimina affinis: -0.4; Cibicidoides wuellerstorfi, +0.64; Globocassidulina sp.: -0.1; Hoeglundina elegans: -0.7. These adjustments are optimized for this particular core in accordance with the long-standing convention by which Uvigerina peregrina is assumed to deposit oxygen in isotopic equilibrium. Results are reported with reference to the international standard VPDB and the precision is better than ±0.08‰ for d18O. Age model: The age model was developed by aligning the abrupt transitions of d18O record of G. bulloides in core MD01-2444 to warming and cooling events in the NGRIP d18Oice record, presented on: (i) the GICC05 timescale [Svensson, A. et al. A 60,000 year Greenland stratigraphic ice core chronology. Clim. Past 4, 47–57 (2008)]; and (ii) the WD2014: modified timescale, whereby NGRIP GICC05 ice ages 31.2–67.2 ka are multiplied by 1.0063. [Buizert, C. et al. The WAIS Divide deep ice core WD2014 chronology – Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Clim. Past 11, 153-173 (2015)].

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Tzedakis, Polychronis C, Margari, Vasiliki, Skinner, Luke C, Menviel, Laurie, Capron, Emilie, Rhodes, Rachael H, Mleneck-Vautravers, Maryline J, Ezat, Mohamed M, Martrat, Belén, Grimalt, Joan O, Hodell, David A (2020). Dataset: δ¹⁸O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3. https://doi.org/10.1594/PANGAEA.919834

DOI retrieved: 2020

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.919834
Author Tzedakis, Polychronis C
Given Name Polychronis C
Family Name Tzedakis
More Authors
Margari, Vasiliki
Skinner, Luke C
Menviel, Laurie
Capron, Emilie
Rhodes, Rachael H
Mleneck-Vautravers, Maryline J
Ezat, Mohamed M
Martrat, Belén
Grimalt, Joan O
Hodell, David A
Source Creation 2020
Publication Year 2020
Resource Type text/tab-separated-values - filename: Tzedakis-etal_2020_foram-benthic-d18O
Subject Areas
Name: BiologicalClassification

Name: Paleontology

Related Identifiers
Title: Fast and slow components of interstadial warming in the North Atlantic during the last glacial
Identifier: https://doi.org/10.1038/s43247-020-0006-x
Type: DOI
Relation: References
Year: 2020
Source: Communications Earth & Environment
Authors: Margari Vasiliki , Skinner Luke C , Menviel Laurie , Capron Emilie , Rhodes Rachael H , Mleneck-Vautravers Maryline J , Ezat Mohamed M , Martrat Belén , Grimalt Joan O , Hodell David A , Tzedakis Polychronis C , Buizert Christo , Cuffey Kurt M , Severinghaus Jeffrey P , Baggenstos Daniel , Fudge Tyler J , Steig Eric J , Markle Bradley R , Winstrup Mai , Rhodes Rachael H , Brook Edward J , Sowers Todd A , Clow Gary D , Cheng Hai , Edwards Ross L , Sigl Michael , McConnell Joseph R , Taylor Kendrick C , Svensson Anders M , Andersen Katrine K , Bigler Matthias , Clausen Henrik Brink , Dahl-Jensen Dorthe , Davies Siwan M , Johnsen Sigfús Jóhann , Muscheler Raimund , Parrenin Frédéric , Rasmussen Sune Olander , Röthlisberger Regine , Seierstad Inger K , Steffensen Jørgen Peder , Vinther Bo Møllesøe .

Title: The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference
Identifier: https://doi.org/10.5194/cp-11-153-2015
Type: DOI
Relation: References
Year: 2015
Source: Climate of the Past
Authors: Margari Vasiliki , Skinner Luke C , Menviel Laurie , Capron Emilie , Rhodes Rachael H , Mleneck-Vautravers Maryline J , Ezat Mohamed M , Martrat Belén , Grimalt Joan O , Hodell David A , Tzedakis Polychronis C , Buizert Christo , Cuffey Kurt M , Severinghaus Jeffrey P , Baggenstos Daniel , Fudge Tyler J , Steig Eric J , Markle Bradley R , Winstrup Mai , Rhodes Rachael H , Brook Edward J , Sowers Todd A , Clow Gary D , Cheng Hai , Edwards Ross L , Sigl Michael , McConnell Joseph R , Taylor Kendrick C , Svensson Anders M , Andersen Katrine K , Bigler Matthias , Clausen Henrik Brink , Dahl-Jensen Dorthe , Davies Siwan M , Johnsen Sigfús Jóhann , Muscheler Raimund , Parrenin Frédéric , Rasmussen Sune Olander , Röthlisberger Regine , Seierstad Inger K , Steffensen Jørgen Peder , Vinther Bo Møllesøe .

Title: A 60 000 year Greenland stratigraphic ice core chronology
Identifier: https://doi.org/10.5194/cp-4-47-2008
Type: DOI
Relation: References
Year: 2008
Source: Climate of the Past
Authors: Margari Vasiliki , Skinner Luke C , Menviel Laurie , Capron Emilie , Rhodes Rachael H , Mleneck-Vautravers Maryline J , Ezat Mohamed M , Martrat Belén , Grimalt Joan O , Hodell David A , Tzedakis Polychronis C , Buizert Christo , Cuffey Kurt M , Severinghaus Jeffrey P , Baggenstos Daniel , Fudge Tyler J , Steig Eric J , Markle Bradley R , Winstrup Mai , Rhodes Rachael H , Brook Edward J , Sowers Todd A , Clow Gary D , Cheng Hai , Edwards Ross L , Sigl Michael , McConnell Joseph R , Taylor Kendrick C , Svensson Anders M , Andersen Katrine K , Bigler Matthias , Clausen Henrik Brink , Dahl-Jensen Dorthe , Davies Siwan M , Johnsen Sigfús Jóhann , Muscheler Raimund , Parrenin Frédéric , Rasmussen Sune Olander , Röthlisberger Regine , Seierstad Inger K , Steffensen Jørgen Peder , Vinther Bo Møllesøe .