Del Gaudio, Arianna V; Singh, Vikram P; Arrigoni, Anna; Puentes-Jorge, Xabier; Dwivedi, Rahul; Pathak, Shivani; Lam, Adriane R: Stable isotopes analysis of IODP Hole 361-U1474A [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983357 (dataset in review)
Abstract:
The dataset shows δ13C and δ18O isotopic measurements performed on planktonic foraminifera for IODP Expedition 361, Hole U1474A. This site is in the southwest Indian Ocean, in the Agulhas region. It is a key location to study past ocean changes in the Indian Ocean because it lies where the warm Agulhas Current meets the cold, nutrient-rich Antarctic Circumpolar Current (ACC). The data from this site help identify different water masses, changes in the thermocline, and long-term shifts in the ACC since the Middle Pleistocene. The data was generated using Thermo Gasbench linked to a Thermo Delta V Advantage IRMS at the Hamilton College Isotope Laboratory, New York, USA.
Supplement to:
Del Gaudio, Arianna V; Singh, Vikram P; Arrigoni, Anna; Puentes-Jorge, Xabier; Dwivedi, Rahul; Pathak, Shivani; Lam, Adriane R (in prep.): Middle Pleistocene to recent paleoceanographic variability in the Agulhas system (southwestern Indian Ocean) induced by fluctuations in the Antarctic Circumpolar Current. Paleoceanography and Paleoclimatology
References:
Singh, Vikram P; Pathak, Shivani; Dwivedi, Rahul (2023): Reduction in the Strength of Agulhas Current During Quaternary: Planktic Foraminiferal Records for 1.2 Million Years from IODP Hole U-1474A. 9(4), 45-52, https://doi.org/10.3233/JCC230031
Funding:
Coverage:
Latitude: -31.217000 * Longitude: 31.545000
Date/Time Start: 2016-02-10T13:55:00 * Date/Time End: 2016-02-10T13:55:00
Minimum Elevation: -3044.6 m * Maximum Elevation: -3044.6 m
Event(s):
361-U1474A * Latitude: -31.217000 * Longitude: 31.545000 * Date/Time: 2016-02-10T13:55:00 * Elevation: -3044.6 m * Penetration: 254.1 m * Recovery: 264.83 m * Campaign: Exp361 (South African Climates (Agulhas LGM Density Profile)) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores, 0 m drilled, 104% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Del Gaudio, Arianna V | DSDP/ODP/IODP sample designation | ||
| 2 | Half | Half | Del Gaudio, Arianna V | Section half | ||
| 3 | Age | Age | Ma | Del Gaudio, Arianna V | According to Singh et al. (2023) | |
| 4 | Foraminifera, planktic δ13C | Foram plankt δ13C | ‰ PDB | Del Gaudio, Arianna V | Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific, Delta V Advantage | |
| 5 | Foraminifera, planktic δ13C, standard deviation | Foram plankt δ13C std dev | ± | Del Gaudio, Arianna V | Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific, Delta V Advantage | |
| 6 | Foraminifera, planktic δ18O | Foram plankt δ18O | ‰ PDB | Del Gaudio, Arianna V | Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific, Delta V Advantage | |
| 7 | Foraminifera, planktic δ18O, standard deviation | Foram plankt δ18O std dev | ± | Del Gaudio, Arianna V | Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific, Delta V Advantage |
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:
1253 data points