Pollen record and age determination of profile CS98-10 at Cape Shpindler, Yugorski Peninsula, northwest Russia ...

• Main Authors: Andreev, Andrei A, Manley, William F, Ingólfsson, Ólafur, Forman, Steven L
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2001
• Subjects: Geological profile sampling; Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; Quaternary Environment of the Eurasian North QUEEN; Arctic; Kara Sea; Shpindler; Betula nana; Northwest Russia; permafrost; Thermokarst; Tundra
• Online Access: https://dx.doi.org/10.1594/pangaea.726734; https://doi.pangaea.de/10.1594/PANGAEA.726734

New pollen and radiocarbon data from an 8.6-m coastal section, Cape Shpindler (69°43' N; 62°48' E), Yugorski Peninsula, document the latest Pleistocene and Holocene environmental history of this low Arctic region. Twelve AMS 14C dates indicate that the deposits accumulated since about 13,000 until 2000 radiocarbon years BP. A thermokarst lake formed ca. 13,000-12,800 years BP, when scarce arctic tundra vegetation dominated the area. By 12,500 years BP, a shallow lake existed at the site, and Arctic tundra with Poaceae, Cyperaceae, Salix, Saxifraga, and Artemisia dominated nearby vegetation. Climate was colder than today. Betula nana became dominant during the Early Preboreal period about 9500 years BP, responding to a warm event, which was one of the warmest during the Holocene. Decline in B. nana and Salix after 9500 years BP reflects a brief event of Preboreal cooling. A subsequent increase in Betula and Alnus fruticosa pollen percentages reflects amelioration of environmental conditions at the end of ... : Supplement to: Andreev, Andrei A; Manley, William F; Ingólfsson, Ólafur; Forman, Steven L (2001): Environmental changes on Yugorski Peninsula, Kara Sea, Russia, during the last 12,800 radiocarbon years. Global and Planetary Change, 31(1-4), 255-264 ...