Sedimentological investigations of sediment profiles from the continental slope off South Orkney Islands

• Main Authors: Fütterer, Dieter K, Grobe, Hannes, Grünig, Sigrun, Abelmann, Andrea, Bleil, Ulrich
• Format: Dataset
• Language: English
• Published: PANGAEA 1988
• Subjects: ANT-II/3; AWI_Paleo; Gravity corer (Kiel type); KAL; Kasten corer; North Atlantic Ocean; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS04; PS04/254; PS04/257; PS04/259; PS04/260; PS04/262; PS1167-9; PS1170-3; PS1172-1; PS1173-9; PS1175-3; SL; South Orkney; Weddell Sea; Antarctic; South Orkney Islands; The Antarctic; Weddell; Antarc*; Ice Shelves; North Atlantic; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.548699; https://doi.org/10.1594/PANGAEA.548699

Sediment patterns such as texture, composition, and facies from three selected areas of the Antarctic continental margin of the Weddell Sea are discussed in relation to environmental variations of the Quaternary hydrosphere and kryosphere. Advance and retreat of ice shelves as well as oscillations in sea ice coverage are reflected by particular sediment facies. The distribution of ice-rafted detritus tracks the Antarctic Coastal Current, and the Weddell Sea Bottom water contour current can be recognized by its distinctive winnowing and erosion pattern. Distribution and abundance of biogenic sediment components are mainly controlled by duration of sea ice coverage reflecting the long-term climatic evolution.