Pollen records of the Bykovsky Peninsula ...
New pollen and radiocarbon data from the Bykovsky Peninsula document the Late Pleistocene and Holocene environmental history of the Laptev Sea coast. More than 60 AMS-14C and conventional 14C dates indicate that the deposits accumulated during the last 60,000 radiocarbon yr BP. High concentration of...
| Main Authors: | , , , , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
2002
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.728522 https://doi.pangaea.de/10.1594/PANGAEA.728522 |
| Summary: | New pollen and radiocarbon data from the Bykovsky Peninsula document the Late Pleistocene and Holocene environmental history of the Laptev Sea coast. More than 60 AMS-14C and conventional 14C dates indicate that the deposits accumulated during the last 60,000 radiocarbon yr BP. High concentration of green alga colonies (Pediustrum and Botryococcus) in the investigated sediment show that sedimentation was mostly in shallow water environments. Scarce grass and sedge communities dominated the vegetation 53-60 kyr BP. Climate was cold and dry. Open Poaceae and Cypcraccae associations with Asteraceae, Ranunculaceae, and Cichoriaceac, dominated in the area about 48-42.5 kyr BP. Steppic communities with Artemisia and shrubby tundra communities with Salix and Betula sect. Nanae were also present. Climate was dry, but relatively warm. Vegetation cover became denser about 42.5-33.5 kyr BP, reflecting more favorable climate conditions. Scarce Poaceae communities with some Caryophyllaceae, Asteraceae, Cichoriaceae, and ... : Supplement to: Andreev, Andrei A; Schirrmeister, Lutz; Siegert, Christine; Bobrov, Anatoly A; Demske, Dieter; Seiffert, Maria; Hubberten, Hans-Wolfgang (2002): Paleoenvironmental changes in northeastern Siberia during the Late Quaternary - evidence from pollen records of the Bykovsky Peninsula. Polarforschung, 70, 13-25 ... |
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