Age determination of sediments cores from the East Greenland continental margin ...

• Main Authors: Nam, Seung-Il, Stein, Ruediger, Grobe, Hannes, Hubberten, Hans-Wolfgang
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1995
• Subjects: Gravity corer Kiel type; ARK-V/3b; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Greenland; Hannes; East Greenland; east greenland current; Greenland Sea; Ice Sheet; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.707391; https://doi.pangaea.de/10.1594/PANGAEA.707391

Stable isotope records, and sedimentological and organic-geochemical investigations of marine sediments from the east Greenland Sea at 70°N provide important information about glacial-interglacial variations of paleoenvironments through the last 225 kyr. The oxygen isotope records established on the planktonic foraminifer N. pachyderma sin. show some excursions from the global climate pattern, probably due to local/regional overprint by meltwater supply. The cold, low-saline East Greenland Current and fluctuations in sea-ice covering were a crucial element controlling the carbonate production in the subsurface/surface water column in the east Greenland Sea over the last 225 kyr. The beginning of Termination Ia is AMS 14C dated at about 15.8 kyr B.P. and interpreted as a Greenland Ice Sheet meltwater signal. The stage 2/3 boundary is dated at about 25 kyr B.P. The timing of the onset of the last deglacial meltwater event is about 800 years earlier than that of the Barents Shelf Ice Sheet meltwater signal ... : Supplement to: Nam, Seung-Il; Stein, Ruediger; Grobe, Hannes; Hubberten, Hans-Wolfgang (1995): Late Quaternary glacial-interglacial changes in sediment composition at the East Greenland continental margin and their paleoceanographic implications. Marine Geology, 122(3), 243-262 ...