Stratotypes of Quaternary deposits of the Yaloman-Katun’ zone (Gorny Altai) |
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Authors: | ID Zolnikov |
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Institution: | aInstitute of Geology and Mineralogy, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia Novosibirsk State University, 2 ul. Pirogova, Novosibirsk, 630090, Russia |
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Abstract: | We revised geological data substantiating the unified 1983 Regional Stratigraphic Chart of Gorny Altai Quaternary deposits. Based on our own and literature data, we showed that Lower and Middle Quaternary glacial horizons are erroneously distinguished in the Yaloman-Katun’ zone of southeastern Altai. A new correlation is proposed, according to which the glacial complex of the maximum glaciation (MIS-6) corresponds to the Inya catafluvial series and the glacial complex of the first postmaximum glaciation (MIS-4 unit), to the Sal’dzhar catafluvial series. The lectostratotypes of both series are described. The event history of the second half of the Late Neopleistocene in Gorny Altai (MIS-3 and MIS-2) was less catastrophic for ancient biota and Paleolithic man than it was believed earlier. |
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Keywords: | Moraines giant floods stratigraphy Neopleistocene Gorny Altai |
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