The Structure and Dynamics of the Dune Massifs from the Vilyui River Basin in Late Quaternary (Case Stady of Maxatta and Kysyl-Syr Tukulans)
M. R. PAVLOVA1, N. A. RUDAYA2,3,4,5, A. A. GALANIN1, G. I. SHAPOSHNIKOV1
1Melnikov Institute of permafrostology, SB RAS, 677010, Yakutsk, Merzlotnаya str., 36
2Institute of Archaeology and Ethnography, SB RAS, 630090, Novosibirsk, Acad. Lavrentiev ave., 17
3Novosibirsk State University, 630090, Novosibirsk, Pirogova str., 2
4Kazan Federal University, 420008, Kazan, Kremlevskaya str., 18
5Altai State University, 656049, Barnаul, Dimitrova ave., 66
Keywords: тукулан, литология, радиоуглеродное датирование, возрастная модель, палинология, плейстоцен, голоцен, tukulan, lithology, radiocarbon dating, age model, palynology, Pleistocene2, Holocene
Abstract
Results of complex investigation of deposits from the dune massifs - tukulans Mahatta and Kysyl-Syr from the Vilyui river basin (Central Yakutia) are presented. On the basis of lithological and palynological data, and also on 17 radiocarbon dates, we reconstructed the structure of tukulans, performed a preliminary reconstruction of their development in the Vilyui river basin and of the environmental conditions during the chronological interval of their formation: Late Pleistocene - Holocene. We found that tukulans represent an aeolian type of deposits lying on sedimentary layers of a complex facial structure. Development of the vegetation during the last 40 thousand years can be divided into four stages; development of the tukulans is represented by three chronostratigraphical phases.
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