Pollen record with radiocarbon datings from Faddeyevskiy Island, Laptev Sea, supplement to: Andreev, Andrei A; Peteet, Dorothy M; Tarasov, Pavel E; Romanenko, Fedor A; Filimonova, Ludmila V; Sulerzhitsky, Leopold D (2001): Late Pleistocene interstadial environment on Faddeyevskiy Island, East-Siberian Sea, Russia. Arctic, Antarctic, and Alpine Research, 33(1), 28-35

Pollen, plant macrofossil, loss-on-ignition and radiocarbon analyses of a 1.4-m section in thermokarst topography from Faddeyevskiy Island (75°20'N, 143°50'E, 30 m elevation) provides new information on Late Pleistocene interstadial environmental history of this high Arctic region. Convent...

Full description

Bibliographic Details
Main Authors: Andreev, Andrei A, Peteet, Dorothy M, Tarasov, Pavel E, Romanenko, Fedor A, Filimonova, Ludmila V, Sulerzhitsky, Leopold D
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2001
Subjects:
Geological profile sampling
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn
Arctic
Antarctic
Arctic Ocean
Laptev Sea
East Siberian Sea
Antarc*
laptev
permafrost
Thermokarst
Tundra
Online Access:https://dx.doi.org/10.1594/pangaea.726695
https://doi.pangaea.de/10.1594/PANGAEA.726695
Description
Summary:Pollen, plant macrofossil, loss-on-ignition and radiocarbon analyses of a 1.4-m section in thermokarst topography from Faddeyevskiy Island (75°20'N, 143°50'E, 30 m elevation) provides new information on Late Pleistocene interstadial environmental history of this high Arctic region. Conventional radiocarbon dates (25,700 ± 1000, 32,780 ± 500, 35,200 ± 650 yr BP) and two AMS dates (29,950 ± 660 and 42,990 ± 1280 yr BP) indicate that the deposits accumulated during the Kargian (Boutellier) interval. Numerous mammoth (Mammuthus primigenius) remains that have been collected in vicinity of the site in this study were radio-carbon dated to 36,700-18,500 yr BP. Rare bison (Bison priscus) bones were dated to 32,200 ± 600 and 33,100 ± 320 yr BP. Poaceae, Cyperaceae, and Artemisia pollen dominate the spectra with some Ranunculaceae, Caryophyllaceae, Rosaceae, and Asteraceae. The pollen spectra reflect steppe-like (tundra-steppe) vegetation, which was dominant on the exposed shelf of the Arctic Ocean. Numerous Carex macrofossils suggest that the summer climate was at least 2°C warmer than today. The productivity of the local vegetation during the Kargian interstadial was high enough to feed the population of grazing mammals.

Similar Items