Organic geochemistry on sediment profiles from the Arctic Ocean ...

• Main Author: Schubert, Carsten J
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2009
• Subjects: MultiCorer; Giant box corer; Kasten corer; ARK-VIII/3; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; amundsen basin; Arctic Ocean; Arktis*
• Online Access: https://dx.doi.org/10.1594/pangaea.729809; https://doi.pangaea.de/10.1594/PANGAEA.729809

During the ARCTIC '91-Expedition with RV 'Polarstern', several Multicorer and Kastenlot-cores were recovered along a profile crossing the eastern part of the Arctic Ocean. The investigated cores consist mainly of clayey-silty sediments, and some units with a higher sand content. In this thesis, detailed sedimentological and organic-geochemical investigations were performed. In part, the near surface sediments were AMS-14C dated making it possible to Interpret the results of the organic-geochemical investigations in terms of climatic changes (isotopic stage 2 to the Holocene). The more or less absence of foraminifers within the long cores prevented the development of an oxygen isotope stratigraphy. Only the results of core PS2174-5 from the Amundsen-Basin could be discussed in terms of the climatic change that could be dated back to oxygen isotope stage 7.Detailed organic-geochemical investigations in the central Arctic Ocean are rare. Therefore, several different organic-geochemical methods were used to ... : Supplement to: Schubert, Carsten J (1995): Organischer Kohlenstoff in spätquartären Sedimenten des Arktischen Ozeans: Terrigener Eintrag und marine Produktivität (Organic carbon in late Quaternary Arctic Ocean sediments: Terrigenous supply and marine productivity). Berichte zur Polarforschung = Reports on Polar Research, 177, 178 pp ...