Dinoflagellate cyst records from the East Greenland continental margin ...

• Main Authors: Matthiessen, Jens, Baumann, Astrid
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1997
• Subjects: Gravity corer Kiel type; Giant box corer; ARK-III/3; ARK-V/3b; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; East Greenland; Greenland; Greenland Sea; North Atlantic; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.707394; https://doi.pangaea.de/10.1594/PANGAEA.707394

Late Weichselian and Holocene dinoflagellate cyst assemblages have been investigated at two stations situated close to the modern Polar Front at the continental margin oft East Greenland. Both the concentrations of dinoflagelate cysts and the assemblage composition reflect changes in the surface water conditions, occurring in distinct steps during the past 15,000 years. Low concentrations of dinoflagellate cysts during Termination Ia suggest harsh environmental conditions, most probably caused by an extensive sea-ice cover and/or a high influx of low salinity meltwater. A surface water warming was recorded from 13,000 - 12,000 years BP, related to the inflow of warmer water trom the North Atlantic into the western Norwegian-Greenland Sea. The interval between Terminations la and Ib was characterized by a strong seasonality with an extensive sea-ice cover in winter and relatively warm surface waters in summer. At the transition to the Holocene, a reorganisation of the hydrography resulted in surface water ... : Further relevant data: Age model PS1295-4 see Jones and Keigwin (1988) data set: doi:10.1594/PANGAEA.51675, age model PS1730-2 see Nam et al. (1995) data set: doi:10.1594/PANGAEA.401194 ...