Greve, Sahra; Frank, Norbert; Montagna, Paolo; Alonso-Hernandez, Carlos; Douville, Eric; Warken, Sophie: δ234U Values of the last 230 years in a Cuban coral ranging from 1777 to 2014 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973159 (dataset in review)
Abstract:
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‰.
Supplement to:
Greve, Sahra; Frank, Norbert; Montagna, Paolo; Alonso-Hernandez, Carlos M; Gomez-Batista, Miguel; Douville, Eric; Warken, Sophie F (preprint): Cuban coral traces annual hydrologically driven variability in δ234U values since the end of the Little Ice Age. https://doi.org/10.22541/au.173990739.96182414/v1
References:
Alonso-Hernandez, Carlos; Batista, Miguel; Helguera, Yusmila; Hernández-Albernas, Joán; Rico-Esenaro, Serguei Damián; Ruiz-Fernández, Ana Carolina; Sanchez-Cabeza, Joan-Albert; Douville, Eric; Montagna, Paolo (2022): Registro de temperatura superficial del mar (1778-2015) en Orbicella faveolata (Cnidaria: Scleractinia) del arrecife Cayo Santa María, Cuba. Revista de Investigaciones Marinas, 37-53
Project(s):
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 468685637: SPP 2299: Tropical Climate Variability and Coral Reefs
German Research Foundation (DFG), grant/award no. 441832482: SPP 2299: Tropical Climate Variability and Coral Reefs. A Past to Future Perspective on Current Rates of Change at Ultra-High Resolution
Coverage:
Latitude: 22.660000 * Longitude: -79.100000
Event(s):
CSM_1 (Coral_Orbicella_Faveolata) * Latitude: 22.660000 * Longitude: -79.100000 * Location: Villa Clara Province, Cuba * Method/Device: Coral core (COC) * Comment: The species Orbicella Faveolata. It is located at ~10m depth in the Cayo Santa María area, north of Villa Clara province, Cuba. The coral core was taken in March 2016.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Greve, Sahra | |||
| 2 | Sample code/label | Sample label | Greve, Sahra | |||
| 3 | Internal coral chronology | Int chron | a | Greve, Sahra | ||
| 4 | AGE | Age | ka BP | Greve, Sahra | Geocode – Provided by Alonso-Hernandez et al. (2022) | |
| 5 | δ234 Uranium (0) | δ234U (0) | ‰ | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | HU1 = 0 |
| 6 | δ234 Uranium | δ234U | ‰ | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | HU1 = 1.2 |
| 7 | Uranium-234, error | 234U e | ± | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | 2σ range |
| 8 | Uranium-238 | 238U | pg/g | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | |
| 9 | Uranium-238, error | 238U e | ± | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | 2σ range |
| 10 | Uranium-234 | 234U | µg/g | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | |
| 11 | Uranium-234, error | 234U e | ± | Greve, Sahra | MC-ICP-MS ThermoFisher Scientific Neptune Plus | 2σ range |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1160 data points