Sedimentology, geochemistry and winter se ice concentration reconstruction for sediment core PS69/274-1 from the western Amundsen Sea, Antarctica, supplement to: Lamping, Nele; Müller, Juliane; Esper, Oliver; Hillenbrand, Claus-Dieter; Smith, James A; Kuhn, Gerhard (2020): Highly branched isoprenoids reveal onset of deglaciation followed by dynamic sea-ice conditions in the western Amundsen Sea, Antarctica. Quaternary Science Reviews, 228, 106103

• Main Authors: Lamping, Nele, Müller, Juliane, Esper, Oliver, Hillenbrand, Claus-Dieter, Smith, James A, Kuhn, Gerhard
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2019
• Subjects: Antarctica; HBIs; IPSO25; palaeoclimatology; paleoclimatology; Sea ice; Gravity corer; ANT-XXIII/4; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Amundsen Sea; Nele; Antarc*
• Online Access: https://dx.doi.org/10.1594/pangaea.904263; https://doi.pangaea.de/10.1594/PANGAEA.904263

We analysed: 1. TOC and CNS contents on sediment core PS69/274-1 and calculated the C/N-ratio and carbonate content of the individual sample depths. 2. a specific biomarker lipid called IPSO25 in sediment core PS69/274-1 from the western Amundsen Sea continental shelf, Antarctica, alongside a phytoplankton biomarker (dinosterol) for reconstructing palaeo-sea ice coverage. We further applied the PIPSO25 approach for semi-quantitative sea ice reconstructions. We analysed a specific biomarker lipid called IPSO25 in sediment core PS69/274-1 from the western Amundsen Sea continental shelf, Antarctica, alongside a phytoplankton biomarker (dinosterol) for reconstructing palaeo sea-ice coverage. We further applied the PIPSO25 approach for semi-quantitative sea-ice reconstructions.