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Main Authors: Fripiat, François, Sigman, Daniel M, Ai, Xuyuan E, Dumoulin, Cédric, Moretti, Simone, Studer, Anja S, Diekmann, Bernhard, Esper, Oliver, Frederichs, Thomas, Lamy, Frank, Liu, Ling, Pattyn, Frank, Schmitt, Mareike, Tiedemann, Ralf, Haug, Gerald H, Martínez-García, Alfredo
Format: Dataset Open Access
Language:en
Published: PANGAEA 2026
Subjects:
ANT-XXIII/9; Diatom; Indian Ocean; IRD; KL; nitrogen isotope; Piston corer (BGR type); Polarstern; PS69; PS69/899-2; RPI; Southern Ocean; TEX86
Online Access:https://doi.org/10.1594/PANGAEA.983976
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Table of Contents:
  • The age model for PS69/899-2 was developed using a combination of stratigraphic markers and Undatable age-depth modeling routine (Lougheed and Obrochta, 2019). Stratigraphic markers employed include TEX86-based SST (doi:10.1594/PANGAEA.983930), RPI (doi:10.1594/PANGAEA.983936), radiocarbon ages on total sedimentary organic matter, and the last occurence datum of the diatom Rouxia leventerae (Zielinski et al., 2002). The TEX86-based SST record from core PS69/899-2 was aligned with the Antarctic temperature stack compiled from ice core data (Parrenin et al., 2013), while the RPI record was aligned with the PISO-1500 paleointensity stack (Channell et al., 2009). Radiocarbon ages were calibrated using the Marine 20 calibration data (Heaton et al., 2023), assuming a marine reservoir age of 1200 years for the Holocene and of 2200 years for glacial periods (Rafter et al., 2022).

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