δ234U Values of the last 230 years in a Cuban coral ranging from 1777 to 2014

DOI

The dataset presented here captures 114 uranium isotope ratio (234U/238U), expressed as δ234U, in a coral from northern Cuba, with data spanning the past 230 years. The primary objective was to analyze the variability in δ234U to evaluate freshwater fluxes and oceanographic changes in the northern Caribbean, particularly during the Little Ice Age (LIA). The highest fluctuations of ±8.1‰ are present at the end of the Little Ice Age, aligning with known climatic shifts. Elevated δ234U values reflect Mississippi River discharge, while lower values correspond to local precipitation along the Cuban coast. Annual variations of δ234U were measured using multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) at the Institut of Environmental Physics Heidelberg, achieving an external precision of ±0.55‰.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.973159
Related Identifier IsSupplementTo https://doi.org/10.22541/au.173990739.96182414/v1
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.973159
Provenance
Creator Greve, Sahra ORCID logo; Frank, Norbert ORCID logo; Montagna, Paolo ORCID logo; Alonso-Hernandez, Carlos; Douville, Eric ORCID logo; Warken, Sophie
Publisher PANGAEA
Publication Year 2025
Funding Reference Deutsche Forschungsgemeinschaft, Bonn https://doi.org/10.13039/501100001659 Crossref Funder ID 468685637 SPP 2299: Tropical Climate Variability and Coral Reefs; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 441832482 https://gepris.dfg.de/gepris/projekt/441832482?language=en SPP 2299: Tropical Climate Variability and Coral Reefs. A Past to Future Perspective on Current Rates of Change at Ultra-High Resolution
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 1160 data points
Discipline Earth System Research
Spatial Coverage (-79.100 LON, 22.660 LAT); Villa Clara Province, Cuba