d18O 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 o...
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2020
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ftdatacite:10.1594/pangaea.919834 2023-05-15T16:30:07+02:00 d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 Tzedakis, Polychronis C Margari, Vasiliki Skinner, Luke C Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J Ezat, Mohamed Martrat, Belén Grimalt, Joan O Hodell, David A 2020 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.919834 https://doi.pangaea.de/10.1594/PANGAEA.919834 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1594/pangaea.919846 https://dx.doi.org/10.1038/s43247-020-0006-x https://dx.doi.org/10.5194/cp-11-153-2015 https://dx.doi.org/10.5194/cp-4-47-2008 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Heinrich Stadials Interstadials MIS 3 Portuguese Margin DEPTH, sediment/rock Age model Foraminifera, benthic δ18O Calypso Corer Age model, GICC05 Age model, WD2014 Mass spectrometer VG Prism MD123 Marion Dufresne 1995 Dataset dataset 2020 ftdatacite https://doi.org/10.1594/pangaea.919834 https://doi.org/10.1594/pangaea.919846 https://doi.org/10.1038/s43247-020-0006-x https://doi.org/10.5194/cp-11-153-2015 https://doi.org/10.5194/cp-4-47-2008 2022-02-09T13:20:43Z 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)]. Dataset Greenland ice core NGRIP DataCite Metadata Store (German National Library of Science and Technology) Greenland Shackleton |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Heinrich Stadials Interstadials MIS 3 Portuguese Margin DEPTH, sediment/rock Age model Foraminifera, benthic δ18O Calypso Corer Age model, GICC05 Age model, WD2014 Mass spectrometer VG Prism MD123 Marion Dufresne 1995 |
spellingShingle |
Heinrich Stadials Interstadials MIS 3 Portuguese Margin DEPTH, sediment/rock Age model Foraminifera, benthic δ18O Calypso Corer Age model, GICC05 Age model, WD2014 Mass spectrometer VG Prism MD123 Marion Dufresne 1995 Tzedakis, Polychronis C Margari, Vasiliki Skinner, Luke C Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J Ezat, Mohamed Martrat, Belén Grimalt, Joan O Hodell, David A d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
topic_facet |
Heinrich Stadials Interstadials MIS 3 Portuguese Margin DEPTH, sediment/rock Age model Foraminifera, benthic δ18O Calypso Corer Age model, GICC05 Age model, WD2014 Mass spectrometer VG Prism MD123 Marion Dufresne 1995 |
description |
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)]. |
format |
Dataset |
author |
Tzedakis, Polychronis C Margari, Vasiliki Skinner, Luke C Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J Ezat, Mohamed Martrat, Belén Grimalt, Joan O Hodell, David A |
author_facet |
Tzedakis, Polychronis C Margari, Vasiliki Skinner, Luke C Menviel, Laurie Capron, Emilie Rhodes, Rachael H Mleneck-Vautravers, Maryline J Ezat, Mohamed Martrat, Belén Grimalt, Joan O Hodell, David A |
author_sort |
Tzedakis, Polychronis C |
title |
d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
title_short |
d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
title_full |
d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
title_fullStr |
d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
title_full_unstemmed |
d18O of benthic foraminifera from sediment core MD01-2444 on the Portuguese Margin, Marine Isotope Stage 3 |
title_sort |
d18o of benthic foraminifera from sediment core md01-2444 on the portuguese margin, marine isotope stage 3 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2020 |
url |
https://dx.doi.org/10.1594/pangaea.919834 https://doi.pangaea.de/10.1594/PANGAEA.919834 |
geographic |
Greenland Shackleton |
geographic_facet |
Greenland Shackleton |
genre |
Greenland ice core NGRIP |
genre_facet |
Greenland ice core NGRIP |
op_relation |
https://dx.doi.org/10.1594/pangaea.919846 https://dx.doi.org/10.1038/s43247-020-0006-x https://dx.doi.org/10.5194/cp-11-153-2015 https://dx.doi.org/10.5194/cp-4-47-2008 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.919834 https://doi.org/10.1594/pangaea.919846 https://doi.org/10.1038/s43247-020-0006-x https://doi.org/10.5194/cp-11-153-2015 https://doi.org/10.5194/cp-4-47-2008 |
_version_ |
1766019829277392896 |