Radiocarbon Dating of Pollen and Spores from Ice Wedges of the Yamal and Kolyma Regionsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Radiocarbon dating of the pollen concentrate from late Pleistocene syngenetic ice wedges was carried out using accelerator mass spectrometry (AMS) in Seyakha and Bizon sections. Comparison of the results with palynological data and the results of AMS radiocarbon dating previously obtained for other organic fractions of the same samples allowed the accuracy of dating of different fractions to be evaluated. Quantitative criteria for data evaluation in terms of possible autochthonous or allochthonous accumulation of the material on the basis of pre-Pleistocene pollen content in these samples were considered. Paleoecological information content of pollen spectra from late Pleistocene syngenetic wedge ice was evaluated.