Processed stable isotope (carbon and oxygen) data from epibenthic Cibicidoides spp., including confidence intervals from the last 50.000 years from site GeoB9508-5 off NW Africa

To investigate deep ocean heat uptake variability, we measured Mg/Ca ratios of Uvigerina spp. on samples from site GeoB9508-5 off NW Africa. Bottom water temperatures (BWT) were calculated using the equation cited by Roberts et al. (2016) (https://doi.org/10.1073/pnas.1511252113). To estimate the δ1...

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Bibliographic Details
Main Authors: Barragán-Montilla, Sofía, Johnstone, Heather J H, Mulitza, Stefan, Pälike, Heiko
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
293
AGE
benthic foraminifera isotopes
Center for Marine Environmental Sciences
Cibicidoides spp.
δ13C
δ18O
Confidence interval
DEPTH
sediment/rock
GeoB
GeoB9508-5
Geosciences
University of Bremen
Gravity corer (Kiel type)
M65/1
MARUM
Meteor (1986)
Mg/Ca-based paleotemperatures
North Atlantic Deep Water
Northwestern Africa
SL
Uvigerina spp
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.950502
https://doi.org/10.1594/PANGAEA.950502
Description
Summary:To investigate deep ocean heat uptake variability, we measured Mg/Ca ratios of Uvigerina spp. on samples from site GeoB9508-5 off NW Africa. Bottom water temperatures (BWT) were calculated using the equation cited by Roberts et al. (2016) (https://doi.org/10.1073/pnas.1511252113). To estimate the δ18O of seawater, the δ18O of Cibicidoides wuellerstorfi was corrected by a species-specific offset of +0.64 ‰ and the temperature effect was extracted based on our paleotemperature record. No further corrections were made on the δ13C. of Cibicidoides spp. The data was modelled using BACON, and contains raw and processed stable isotope data from epibenthic Cibicidoides spp., including confidence intervals (95%) from the last 50.000 years at the eastern North Atlantic. Standard deviation for BWT was 0.7 °C and 0.07/0.05 for δ18O and δ13C.

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