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The Volchia Griva mineral oasis as unique locus for research of the mammoth fauna and the late Pleistocene environment in Northern Eurasia

Published online by Cambridge University Press:  19 April 2022

Sergey V. Leshchinskiy*
Affiliation:
Laboratory of Mesozoic and Cenozoic Continental Ecosystems, Tomsk State University, Lenin Ave. 36, Tomsk 634050, Russia. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Koptyug Avenue 3, Novosibirsk, 630090, Russia.
Elena M. Burkanova
Affiliation:
Laboratory of Mesozoic and Cenozoic Continental Ecosystems, Tomsk State University, Lenin Ave. 36, Tomsk 634050, Russia. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Koptyug Avenue 3, Novosibirsk, 630090, Russia.
*
*Corresponding author e-mail addresses: sl@ggf.tsu.ru, mammothfauna@gmail.com

Abstract

This paper describes the results of research at Volchia Griva, the largest site in Asia containing mammoth fauna in situ. It is situated in the south of the West Siberian Plain in the Baraba forest-steppe zone, and occupies an area of several hectares. Analysis of sediments and taphonomy of the site allows us to suggest that thousands of megafaunal remains were buried here in mud pits and erosional depressions. The favorable geochemical landscape of Volchia Griva attracted animals during periods of mineral starvation. This is reflected in the high mortality in two intervals, ca. 20–18 14C ka BP and ca. 17–11 14C ka BP. The results of palynological analysis of samples from the upper part of the Volchia Griva section made it possible to reconstruct the history of landscape changes of the Baraba Lowland during the MIS 2. Forb-mesophytic meadows were common at the beginning of this period, with taiga type forests. At ca. 20 14C ka BP, an abrupt and significant aridization of the climate occurred, which led to the degradation of forests. The mammoth steppe was widely developed, dominated by forb-grass association and with areas of alkali meadows and soils. Such conditions existed probably until the mid-Holocene.

Information

Type
Research Article
Copyright
Copyright © University of Washington. Published by Cambridge University Press, 2022

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