Sedimentology of three cores recovered off the northwest of Svalbard ...

• Main Authors: Vogt, Christoph, Knies, Jochen, Spielhagen, Robert F, Stein, Ruediger
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2001
• Subjects: Giant box corer; Gravity corer Kiel type; 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; Ice Sheet; Svalbard; Spitsbergen
• Online Access: https://dx.doi.org/10.1594/pangaea.728244; https://doi.pangaea.de/10.1594/PANGAEA.728244

Three cores recovered off the northwest of Svalbard were studied with respect to glacial/interglacial changes of clay and bulk mineralogy, lithology and organic geochemistry. The cores cover the Late Quaternary Marine Isotope Stages (MIS) 6-1 (ca. 170,000 years) and are located in the vicinity of the Polar Front which separates the warm Atlantic water of the Westspitsbergen Current and the cold Polar Water of the Transpolar Drift. Globally driven changes in the paleoenvironment like the variable advection of warm Atlantic water into the Arctic Ocean can be distinguished from regional events by means of source mineral signatures and organic geochemistry data. In particular, a combination of high organic carbon and low carbonate contents, high C/N-ratios, a particular lithology and a distinct bulk and clay mineral assemblage can be related to Svalbard ice sheet developments between 23,000 and 19,500 14C years. This complex sediment pattern has been traced to the northwest of Spitsbergen as far north as 82°N. ... : Supplement to: Vogt, Christoph; Knies, Jochen; Spielhagen, Robert F; Stein, Ruediger (2001): Detailed mineralogical evidence for two nearly identical glacial/deglacial cycles and Atlantic Water advection to the Arctic Ocean during the last 90,000 years. Global and Planetary Change, QUEEN special issue, 31(1-4), 23-44 ...