Tie points for IODP Hole 344-U1381C

DOI

The age model for the upper 49 m of Hole U1381C is based on radiocarbon dates, graphical tuning of the benthic δ18O record and biostratigraphic and paleomagnetic events. The age control of the upper sections (4.3 mbsf) is constrained by seven accelerator mass spectrometry 14C ages on planktonic foraminifera from the >150 μm size fraction. The accelerator mass spectrometry ages were measured at the Center for Applied Isotope Studies, University of Georgia (U.S.A.) and were calibrated (2σconfidence limits) with the Calib 7.0 software using the Marine13 calibration dataset (Reimer et al., 2013). The oldest radiocarbon age was too old for calibration and was discarded for the age model construction. The last occurrence of the planktonic foraminifera Globigerinoides ruber (pink variety) occurring at 8.95 mbsf which corresponds to an age of ∼127 ka (Ivanova et al., 2012), was also used as a dating point. Beyond the radiocarbon limits, the U1381C benthic δ18O of Uvigerina auberiana from the 250-300 µm size fraction was correlated graphically to the orbitally tuned LR04 benthic δ18O stack record (Lisiecki and Raymo, 2005) as indicated in Diz et al., (2018). The Brunhes-Matuyama boundary found at 49 mbsf (Li et al., 2015) is considered as additional tie point.

Identifier
DOI https://doi.org/10.1594/PANGAEA.971417
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.971427
Related Identifier References https://doi.org/10.1016/j.epsl.2018.04.024
Related Identifier References https://doi.org/10.1016/j.quascirev.2012.02.020
Related Identifier References https://doi.org/10.1002/2015GC006058
Related Identifier References https://doi.org/10.1029/2004PA001071
Related Identifier References https://doi.org/10.2458/azu_js_rc.55.16947
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.971417
Provenance
Creator Diz, Paula ORCID logo; Hernández-Almeida, Iván ORCID logo; Bernárdez, Patricia ORCID logo; Pérez-Arlucea, Marta; Hall, Ian R ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Agencia Estatal de Investigacion https://doi.org/10.13039/501100011033 Crossref Funder ID JC1-2011-08849 ; Axencia Galega de Innovación, Xunta de Galicia https://doi.org/10.13039/501100010769 Crossref Funder ID EM2013/012 ; Ministry of Economy, Industry and Competitiveness https://doi.org/10.13039/501100003329 Crossref Funder ID CGL2016-79878-R ; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID P300P2_164634
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 82 data points
Discipline Earth System Research
Spatial Coverage (-84.158 LON, 8.428 LAT)
Temporal Coverage Begin 2012-10-26T12:15:00Z
Temporal Coverage End 2012-10-27T21:45:00Z