Alkenone-based sea surface temperature during the last 8 Ma from IODP Site 383-U1543

DOI

This dataset presents a sea surface temperature (SST) record based on the alkenone UK'37 index from IODP Site 383-U1543 and PS97/114-2 in the Southeast Pacific. The SST record covers the last 8 Mrys (average resolution 25 ka) and dates back to the late Miocene. The sediment samples were collected from drill cores recovered during IODP 383 expedition "Dynamics of Pacific Antarctic Circumpolar Current (DYNAPACC)" with R/V JOIDES Resolution in 2019 (54°35.06ʹS, 76°40.59ʹW; 3,860 m water depth; Lamy et al., 2021; doi:10.14379/iodp.proc.383.2021). The SST younger than 0.45 Ma were reconstructed from sediment samples recovered during RV Polarstern Cruise PS97 (ANT-XXXI/3) from piston core114-2 ((54°34.73'S, 76°38.82'W; 3,869 m water depth; Lamy et al., 2016; doi:10.2312/BzPM_0701_2016). In addition to the reconstructed SST, the UK'37 and UK'38Me indices are presented in the dataset.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.982857
Related Identifier References https://doi.org/10.1016/0967-0637(93)90040-A
Related Identifier References https://doi.org/10.2312/BzPM_0701_2016
Related Identifier References https://doi.org/10.14379/iodp.proc.383.2021
Related Identifier References https://doi.org/10.1016/S0016-7037(98)00097-0
Related Identifier References https://doi.org/10.1038/330367a0
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.982857
Provenance
Creator Wegwerth, Antje ORCID logo; Arz, Helge Wolfgang ORCID logo; Kaiser, Jerome; Winckler, Gisela; Lembke-Jene, Lester ORCID logo; Rigalleau, Vincent ORCID logo; Ruggieri, Nicoletta; Sadatzki, Henrik ORCID logo; Lamy, Frank ORCID logo
Publisher PANGAEA
Publication Year 2025
Funding Reference Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID AR 367/16-1 DFG Priority Programme 527 - SESPOD; Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID KA 3228/4-1 DFG Priority Programme 527 - SESPOD; Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID La1273/10-1 Dynamics of Pacific Antarctic Circumpolar Current (DYNAPACC)
Rights Creative Commons Attribution 4.0 International; Data access is restricted (moratorium, sensitive data, license constraints); https://creativecommons.org/licenses/by/4.0/
OpenAccess false
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 1157 data points
Discipline Earth System Research
Spatial Coverage (-76.677W, -54.584S, -76.647E, -54.579N); South Pacific Ocean