Pollen records from Bol'shoy Lyakhovsky Island, Siberia ...

• Main Authors: Andreev, Andrei A, Grosse, Guido, Schirrmeister, Lutz, Kuznetsova, Tatyana V, Kuzmina, Svetlana A, Bobrov, Anatoly A, Tarasov, Pavel E, Novenko, Elena Y, Meyer, Hanno, Derevyagin, Aleksandr Yu, Kienast, Frank, Bryantseva, Anna, Kunitsky, Victor V
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2010
• Subjects: Geological profile sampling; Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; Arctic; Boreas; Guido; Hanno; Ice; permafrost; Subarctic; Tundra; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.736069; https://doi.pangaea.de/10.1594/PANGAEA.736069

Cryolithological, ground ice and fossil bioindicator (pollen, diatoms, plant macrofossils, rhizopods, insects, mammal bones) records from Bol'shoy Lyakhovsky Island permafrost sequences (73°20'N, 141°30'E) document the environmental history in the region for the past c. 115 kyr. Vegetation similar to modern subarctic tundra communities prevailed during the Eemian/Early Weichselian transition with a climate warmer than the present. Sparse tundra-like vegetation and harsher climate conditions were predominant during the Early Weichselian. The Middle Weichselian deposits contain peat and peaty soil horizons with bioindicators documenting climate amelioration. Although dwarf willows grew in more protected places, tundra and steppe vegetation prevailed. Climate conditions became colder and drier c. 30 kyr BP. No sediments dated between c. 28.5 and 12.05 14C kyr BP were found, which may reflect active erosion during that time. Herb and shrubby vegetation were predominant 11.6-11.3 14C kyr BP. Summer temperatures ... : Supplement to: Andreev, Andrei A; Grosse, Guido; Schirrmeister, Lutz; Kuznetsova, Tatyana V; Kuzmina, Svetlana A; Bobrov, Anatoly A; Tarasov, Pavel E; Novenko, Elena Y; Meyer, Hanno; Derevyagin, Aleksandr Yu; Kienast, Frank; Bryantseva, Anna; Kunitsky, Victor V (2009): Weichselian and Holocene palaeoenvironmental history of the Bol'shoy Lyakhovsky Island, New Siberian Archipelago, Arctic Siberia. Boreas, 38(1), 72-110 ...