Sediment composition of the Central Arctic Ocean ...

• Main Authors: Spielhagen, Robert F, Baumann, Karl-Heinz, Erlenkeuser, Helmut, Nowaczyk, Norbert R, Nørgaard-Pedersen, Niels, Vogt, Christoph, Weiel, Dominik
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2004
• Subjects: Kasten corer; Gravity corer Kiel type; Giant box corer; Piston corer BGR type; ARK-XIV/1a; ARK-IV/3; ARK-VIII/3; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; Arctic Ocean; Fram Strait; Ice Sheet; Iceberg*; Sea ice; Yermak plateau
• Online Access: https://dx.doi.org/10.1594/pangaea.740913; https://doi.pangaea.de/10.1594/PANGAEA.740913

The sediment composition of deep-sea cores from the central Arctic Ocean, the Fram Strait, and the Yermak Plateau was analyzed for several parameters to reconstruct the history of marine paleoenvironment and terrestrial glaciation in the last 200,000 years. Layers with high amounts of coarse, terrigenous ice-rafted debris (IRD) and often high contents of smectite were deposited during extensive glaciations in northern Eurasia, when ice sheets reached the northern continental margins of the Barents and Kara seas and discharged icebergs into the Arctic Ocean. Intercalated layers with relatively low IRD and smectite contents, but abundant planktic foraminifers in the coarse fraction were deposited during periods of Atlantic Water inflow to the Arctic Ocean and seasonally open waters (leads) in a sea ice cover with only few icebergs in the Arctic Ocean. High IRD contents in the sediments reflect the presence of ice sheets on the Kara and Barents seas shelves and the hinterland during the entire oxygen isotope ... : Supplement to: Spielhagen, Robert F; Baumann, Karl-Heinz; Erlenkeuser, Helmut; Nowaczyk, Norbert R; Nørgaard-Pedersen, Niels; Vogt, Christoph; Weiel, Dominik (2004): Arctic Ocean deep-sea record of Northern Eurasian ice sheet history. Quaternary Science Reviews, 23(11-13), 1455-1483 ...