Cenozoic clumped isotope temperature record from the deep North Atlantic

DOI

This dataset contains clumped isotope (D47), d18O and d13C data from benthic foraminifera from four IODP sites from the Newfoundland margin. The D47 data were used to reconstruct deep ocean temperature across the Cenozoic era. The reported data were generated at ETH Zürich and the University of Bergen between 2015 and 2020. Data for this study were mostly obtained from core catcher samples, with an average time resolution of 1.2 million years. For each sample, 13-45 replicate measurements were performed on different species of benthic foraminifera. Data in this dataset are sample-averaged isotope and temperature data. In addition, replicate-level raw data including standard data for correction are stored at Earthchem (doi:10.26022/IEDA/112213) to allow for reprocessing of the data.

The data file contains information on each sample (Site, core, depth, age) and the measurements (replicate number, laboratory) in addition to the isotope data. For clumped isotopes (D47), mean values and standard errors are given (on the I-CDES scale, see Bernasconi et al., G3, 2021) as well as temperatures calculated using the foraminifera-based calibration of Meinicke et al. (GCA, 2020), updated to the I-CDES scale by Meinicke et al. (Paleoceanography and Paleoclimatology, 2021). Furthermore, genus-specific d18O and d13C values are reported for Cibicidoides and Nuttalides where available, as well as the calculated isotopic composition of seawater based on the d18O values from Cibicidoides spp., the D47 temperatures, and the calibration of Marchitto et al. (GCA, 2014). d18O of Cibicidoides and resulting seawater d18O are also reported after correction for a hypothetical pH effect using a linear trend through reconstructed deep ocean pH based on d11B and the theoretical pH effect of 1.42 ‰ per pH unit from Zeebe (Paleo3, 2001).

Identifier
DOI https://doi.org/10.1594/PANGAEA.945578
Related Identifier https://doi.org/10.1126/science.abk0604
Related Identifier https://doi.org/10.26022/IEDA/112213
Related Identifier https://doi.org/10.1029/2020GC009588
Related Identifier https://doi.org/10.1016/j.gca.2013.12.034
Related Identifier https://doi.org/10.1016/j.gca.2019.11.022
Related Identifier https://doi.org/10.1029/2020PA004115
Related Identifier https://doi.org/10.1016/S0031-0182(01)00226-7
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.945578
Provenance
Creator Meckler, Anna Nele ORCID logo; Sexton, Philip F ORCID logo; Piasecki, Alison ORCID logo; Leutert, Thomas Jan ORCID logo; Marquardt, Johanna ORCID logo; Ziegler, Martin ORCID logo; Agterhuis, Tobias ORCID logo; Lourens, Lucas Joost ORCID logo; Rae, James W B ORCID logo; Barnet, James ORCID logo; Tripati, Aradhna; Bernasconi, Stefano M ORCID logo
Publisher PANGAEA
Publication Year 2022
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 632 data points
Discipline Earth System Research
Spatial Coverage (-51.650W, 40.350S, -49.170E, 41.425N)