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Radiocarbon chronology of the late Pleistocene-Holocene paleogeographic events in Lake Baikal region (Siberia).

Hikaru Takahara, Yaroslav V Kuzmin, Lyobov A Orlova, A J Timothy Jull, Toshio Nakamura, Norio Miyoshi, Kimiyasu Kawamuro, Elena V Bezrukova

Abstract


New radiocarbon dates obtained from Late Pleistocene and Holocene deposits of the southern, eastern, and northern shores of Lake Baikal in 1995-2001 are presented, and the most important results of paleoenvironmental studies based on (super 14) C data are discussed. The following paleogeographic events were verified with the help of (super 14) C dating: 1) first Late Pleistocene glaciation (Early Zyryan); 2) Middle Zyryan interstadial; 3) loess formation during the Late Zyryan (Sartan) deglaciation; 4) warm and cold events in the Late Glacial; and 5) vegetation changes and forest successions during the Late Glacial and Holocene.

Keywords


absolute age;Asia ;Baikal region;boreholes ;C 14;carbon ;Cenozoic ;chronostratigraphy ;Commonwealth of Independent States;cores ;dates ;Holocene ;isotopes ;microfossils ;miospores ;paleoclimatology ;paleoecology ;paleoenvironment ;paleogeography ;palynomorphs ;Pleistocene ;pollen ;Quaternary ;radioactive isotopes;Russian Federation;sediments ;Siberia ;Siberian fold belt;upper Pleistocene;vegetation

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