Anee, Samina; Penman, Donald E; Newell, Dennis L; Warren, Audrey: Stable isotopes of single shells from IODP Hole 392-U1580A [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983331 (dataset in review)
Abstract:
This dataset includes detailed stable isotope measurements (δ¹³C, δ¹⁸O) from individual planktic foraminifera collected at IODP Site 392-U1580 (40°47.15'S, 26°36.41'E, 2560 m water depth) during the Paleocene-Eocene Thermal Maximum (PETM). Analyses were done at the Department of Geoscience, Utah State University, using a special method that allows for very accurate measurements on small samples of calcium carbonate, with a precision of ±0.22‰ for δ¹³C and ±0.09‰ for δ¹⁸O. The dataset includes measurements on three species: Acarinina soldadoensis, Acarinina coalingensis, and Morozovella aequa from four key stratigraphic intervals. Single-shell data show two different groups of isotopic values at the start of the PETM, suggesting that mixing occurred between specimens from before and during the PETM due to bioturbation. This mixing quantification enables correction of bulk geochemical measurements. The data also demonstrate species-specific migration patterns, with Morozovella appearing only during the PETM warming, providing insights into planktic foraminiferal biogeography and paleoceanographic changes. Values are reported in per mil relative to the VPDB standard.
Supplement to:
Anee, Samina; Penman, Donald E; Newell, Dennis L; Rittenour, Tammy M (in prep.): Warming of the Southern Ocean During the Paleocene-Eocene Thermal Maximum: Multi-proxy Evidence from IODP Site U1580. Paleoceanography and Paleoclimatology
References:
Vonhof, Hubert B; de Graaf, Stefan; Spero, Howard J; Schiebel, Ralf; Verdegaal, Suzan J A; Metcalfe, Brett; Haug, Gerald H (2020): High-precision stable isotope analysis of <5 μg CaCO 3 samples by continuous-flow mass spectrometry. Rapid Communications in Mass Spectrometry, 34(19), e8878, https://doi.org/10.1002/rcm.8878
Coverage:
Latitude: -40.785900 * Longitude: 26.606900
Date/Time Start: 2022-02-25T11:30:00 * Date/Time End: 2022-03-07T05:00:00
Minimum DEPTH, sediment/rock: 62.866 m * Maximum DEPTH, sediment/rock: 62.866 m
Event(s):
392-U1580A * Latitude: -40.785900 * Longitude: 26.606900 * Date/Time Start: 2022-02-25T11:30:00 * Date/Time End: 2022-03-07T05:00:00 * Elevation: -2560.3 m * Number of cores: 68 * Penetration: 533.9 m * Recovery: 66 % * Location: Agulhas Plateau * Campaign: Exp392 * Basis: Joides Resolution * Method/Device: Rotary core drilling (RCD)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Anee, Samina | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Anee, Samina | IODP Depth Scale Terminology | Geocode – CCSF-M |
| 3 | Half | Half | Anee, Samina | Section half | ||
| 4 | Acarinina soldadoensis, δ13C | A. soldadoensis δ13C | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) | |
| 5 | Acarinina soldadoensis, δ18O | A. soldadoensis δ18O | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) | |
| 6 | Acarinina coalingensis, δ13C | A. coalingensis δ13C | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) | |
| 7 | Acarinina coalingensis, δ18O | A. coalingensis δ18O | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) | |
| 8 | Morozovella aequa, δ13C | M. aequa δ13C | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) | |
| 9 | Morozovella aequa, δ18O | M. aequa δ18O | ‰ PDB | Anee, Samina | Modified CryoTrap method according to Vonhof et al. (2020) |
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:
118 data points