Physical properties of sediment cores from the Arctic Ocean

• Main Author: Bergmann, Uwe
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Amundsen Basin; ARK-VIII/3; AWI_Paleo; Gakkel Ridge; Arctic Ocean; Giant piston corer; GPC; Gravity corer (Kiel type); KAL; Kasten corer; Lomonosov Ridge; Makarov Basin; Morris Jesup Rise; Nansen Basin; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19/150; PS19/152; PS19/157; PS19/158; PS19/159; PS19/160; PS19/161; PS19/164; PS19/165; PS19/166; PS19/167; PS19/168; PS19/171; PS19/172; PS19/173; PS19/175; PS19/176; PS19/181; PS19/186; PS19/190; PS19/192; PS19/194; PS19/206; PS19/212; PS19/218; PS19/222; PS19/228; PS19/234; PS19/245; PS19/246; PS19 ARCTIC91; PS2157-5; PS2157-6; Arctic; Yermak Plateau; amundsen basin; Berichte zur Polarforschung; makarov basin; Polar Research; Polarforschung; Reports on polar research; Yermak plateau
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.871084; https://doi.org/10.1594/PANGAEA.871084

Sediments of the Arctic Ocean are recorders of oceanographic and climatic evolution in the northern hemisphere, The sedimentary history is reflected in the sediment physical properties, thus knowledge about them is a key to its Interpretation particularly within the Quaternary. In this study, 29 sediment cores from the eastern Arctic Ocean were investigated On porosity, wet bulk density and ten cores on compressional (P-) wave velocity. Analysis of these parameters permits interpretations about the sedimentary conditions in the Amundsen and Makarov Basins and on the Lomonosov Ridge, Yermak Plateau and Morris Jesup Rise. The distribution of 25 sediment cores throughout abyssal hill and abyssal plain locations of the eastern Arctic Ocean show specific distribution patterns of wet bulk densities and porosities which characterize the sedimentary regions. On the Yermak Plateau undisturbed pelagic sedimentation predominates. The Lomonosov Ridge and the Morris Jesup Rise are characterized by winnowing. On the Gakkel Ridge turbidite and ice transported deposits are dominant. With the exception of turbidite layers in the Amundsen Basin and ice transported sandy layers in the Makarov Basin, sediments of these basins are dominated by fine-grained sediment. ff.