Sedimentology of surface sediments from the eastern central Arctic Ocean ...

• Main Authors: Stein, Ruediger, Grobe, Hannes, Wahsner, Monika
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1994
• Subjects: MultiCorer; Giant box corer; Kasten corer; ARK-VIII/2; ARK-VIII/3; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; Arctic Ocean; Sea ice; Svalbard
• Online Access: https://dx.doi.org/10.1594/pangaea.726639; https://doi.pangaea.de/10.1594/PANGAEA.726639

Results from a detailed sedimentological investigation of surface sediments from the eastern Arctic Ocean indicate that the distribution of different types of sediment facies is controlled by different environmental processes such as sea-ice distribution, terrigenous sediment supply, oceanic currents, and surface-water productivity.In comparison to other open-ocean environments, total organic carbon contents are high, with maximum values in some deep-basin areas as well as west and north of Svalbard. In general, the organic carbon fraction is dominated by terrigenous material as indicated by low hydrogen index values and high C/N ratios, probably transported by currents and/or sea ice from the Eurasian Shelf areas. The amount of marine organic carbon is of secondary importance reflecting the low-productivity environment described for the modern ice-covered Arctic Ocean. In the area north of Svalbard, some higher amounts of marine organic matter may indicate increased surface-water productivity controlled by ... : Supplement to: Stein, Ruediger; Grobe, Hannes; Wahsner, Monika (1994): Organic carbon, carbonate, and clay mineral distributions in eastern central Arctic Ocean surface sediments. Marine Geology, 119(3-4), 269-285 ...