Wegwerth, Antje; Arz, Helge Wolfgang; Kaiser, Jerome; Winckler, Gisela; Lembke-Jene, Lester; Rigalleau, Vincent; Ruggieri, Nicoletta; Sadatzki, Henrik; Lamy, Frank (2025): Carbonate record during the last 8 Ma from IODP Site 383-U1543 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982859
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Published: 2025-07-18 • DOI registered: 2025-08-16
Abstract:
This dataset presents a CaCO3 record from IODP Site 383-U1543 in the Southeast Pacific. The carbonate record covers the last 8 Mrys (average resolution 0.33 ka) and dates back to the late Miocene. The drill cores were recovered during IODP 383 expedition "Dynamics of Pacific Antarctic Circumpolar Current (DYNAPACC)" with R/V JOIDES Resolution in 2019 (54°35.06ʹS, 76°40.59ʹW; 3,860 m water depth; Lamy et al., 2021). The content of CaCO3 was determined by a linear calibration between Ca intensities (X-ray fluorescence (XRF) scanning with an Avaatech XRF Core Scanner) and discrete shipboard CaCO3 measurements performed during IODP Expedition 383 (Lamy et al., 2021; doi:10.14379/iodp.proc.383.2021).
Supplement to:
Wegwerth, Antje; Arz, Helge Wolfgang; Kaiser, Jerome; Winckler, Gisela; Lembke-Jene, Lester; Rigalleau, Vincent; Ruggieri, Nicoletta; Sadatzki, Henrik; Lamy, Frank (2025): South Pacific sea surface temperature and global ocean circulation changes since the late Miocene. Nature Communications, 16 (6593), https://doi.org/10.1038/s41467-025-62037-w
References:
Lamy, Frank; Winckler, Gisela; Alvarez Zarikian, Carlos A; Expedition 383 Scientists (2021): Volume 383: Dynamics of the Pacific Antarctic Circumpolar Current (DYNAPACC). Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 383, https://doi.org/10.14379/iodp.proc.383.2021
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. AR 367/16-1: DFG Priority Programme 527 - SESPOD
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. KA 3228/4-1: DFG Priority Programme 527 - SESPOD
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. La1273/10-1: Dynamics of Pacific Antarctic Circumpolar Current (DYNAPACC)
Coverage:
Latitude: -54.584300 * Longitude: -76.676500
Minimum DEPTH, sediment/rock: 0.010 m * Maximum DEPTH, sediment/rock: 376.325 m
Event(s):
383-U1543 * Latitude: -54.584300 * Longitude: -76.676500 * Elevation: -4200.0 m * Campaign: EXP383 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Wegwerth, Antje | IODP Depth Scale Terminology | Geocode – mid depth CCSF |
| 2 | Age | Age | Ma | Wegwerth, Antje | According to Lamy et al. (2021) | |
| 3 | Calcium carbonate | CaCO3 | % | Wegwerth, Antje | Linear calibration between Ca intensities (XRF scanning) and discrete shipboard CaCO3 measurements according to Lamy et al. (2021) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
47420 data points
Download Data
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