Dissolved neodymium concentrations and neodymium isotope compositions for deep water (≥1500 m) samples of R/V SONNE cruise SO245-UltraPac in the South Pacific


This dataset includes seawater neodymium (Nd) concentrations and Nd isotope signatures (expressed as ε-Nd) obtained from a zonal deep-water (1500 – 5321 m water depth) transect across the oligotrophic South Pacific gyre. The samples were collected during cruise SO245 with R/V Sonne as part of the GEOTRACES process study GPpr09 from February 17th 2015, to January 28th 2016. The samples were processed and analysed following the GEOTRACES protocols. Across 8 stations, dissolved Nd ranges from 10.76 to 31.1 pmol/kg with an overall increase with water depth, but slightly lower concentrations in the deep Southeast Pacific compared to the Southwest Pacific. The isotope composition shows ε-Nd values ranging from -8.5 to -3.9 with lowest ε-Nd (ε-Nd = -8.5 to -7.5) in the deep Pacific west of the East Pacific Rise (EPR) and more radiogenic εNd values (εNd = -6 to -4) east of the EPR.

DOI https://doi.pangaea.de/10.1594/PANGAEA.968708
Related Identifier References https://doi.org/10.2312/cr_so245
Related Identifier References https://doi.org/10.1016/0012-821X(80)90125-9
Related Identifier References https://doi.org/10.4319/lom.2012.10.252
Related Identifier References https://doi.org/10.1016/S0009-2541(00)00198-4
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.968708
Creator Waltemathe, Henning; Struve, Torben ORCID logo; Rehbein, Matthias; Pahnke, Katharina ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Federal Ministry of Education and Research https://doi.org/10.13039/501100002347 Crossref Funder ID 03G0245A https://foerderportal.bund.de/foekat/jsp/SucheAction.do?actionMode=view&fkz=03G0245A UltraPac Expedition SO245; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 243019516 https://gepris.dfg.de/gepris/projekt/243019516 Distribution of neodymium isotopes and trace elements in the West Pacific: sources, sinks, and water mass signatures
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
Resource Type Dataset
Format text/tab-separated-values
Size 670 data points
Discipline Earth System Research
Spatial Coverage (-90.029W, -40.000S, 117.619E, -23.492N); South Pacific Ocean
Temporal Coverage Begin 2015-12-27T10:49:00Z
Temporal Coverage End 2016-01-24T09:00:00Z