Sea surface temperature and surface seawater oxygen isotope composition reconstructions for sediment core I106

DOI

We present sea surface temperature and oxygen isotopes in a sediment core I106 (6°14′49.76″N, 90°00′1.04″E; 2,910 m water depth) from the tropical East Indian Ocean, which provide new insights into the variability of tropical precipitation belt in Asian Monsoon region during the last deglaciation. The age model for the core is constrained by 17 AMS radiocarbon ages based on mixed planktonic foraminiferal samples. Mg/Ca derived sea surface temperature reconstructions based on Globigerinoides ruber (s. s., white) increased rapidly at about 19.5 ka, which is consisted with Mg/Ca-SST records in other cores in the tropical East Indian Ocean. Ice-volume corrected d18O seawater (d18Osw) exhibited a remarkable decline during the early Heinrich Stadial 1 (about 18.3-16.3 ka), and an increase during the late Heinrich Stadial 1 (16.3-14.7) ka. We attribute the decline of d18Osw in north of Equator from Asian Monsoon region to a contracted tropical precipitation belt during the early Heinrich Stadial 1.

Identifier
DOI https://doi.org/10.1594/PANGAEA.956013
Related Identifier IsSupplementTo https://doi.org/10.1038/s41467-023-40377-9
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.956013
Provenance
Creator Yang, Yiping; Zhang, Lanlan; Yi, Liang; Lu, Zhengyao; Zhong, Fuchang; Sui, Wan; Xiang, Rong
Publisher PANGAEA
Publication Year 2023
Funding Reference National Natural Science Foundation of China https://doi.org/10.13039/501100001809 Crossref Funder ID 41876056, 41906057, 42176082, 41576044 ; Southern Marine Science and Engineering Guangdong Laboratory https://doi.org/10.13039/501100019651 Crossref Funder ID GML2019ZD0206
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (90.000 LON, 6.247 LAT)