Paleolimnological reconstruction of Late Glacial and Holocene environments of Middle Urals
Abstract
The paleolimnological study of the Lake Tavatui sedimentary record based on a multy-proxy approach provides reconstruction of the Late Glacial and Holocene environments of the Middle Urals. Spore-pollen spectra of the Late Glacial clay reflect several climate shifts between 13.25 and 11.7 ka cal BP. Lithology, mineralogy, geochemistry and spore-pollen spectra of the lake sediment core show follows Holocene environmental changes: ?11.2 ka cal BP, ? 10.6-10.4 ka cal BP, ?9.8 ka cal BP, ? 8.5-7.5 ka cal BP, ?5.8 ka cal BP, ?4.2 ka cal BP, ?3.5 ka cal BP and ? 2.3-2.2 ka cal BP. Lake sediments accumulated since the beginning of human-induced lake level increase (1914-1915 AD) characterized by an increase in Al, K, Rb, Zr, Cs, Be, Sc, V and Ga. These lithophil elements were used as the lake-level fluctuations indicators for the Holocene lake sediments.
About the Authors
A. V. Maslennikova
Institute of Mineralogy UB RAS
Russian Federation
Russian Federation
V. N. Udachin
South Ural State University
Russian Federation
Russian Federation
D. V. Pirogov
Testing and Analytical Center “ANC-service”
Russian Federation
Russian Federation
P. V. Khvorov
Institute of Mineralogy UB RAS
Russian Federation
Russian Federation
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Review
For citations:
Maslennikova A.V., Udachin V.N., Pirogov D.V., Khvorov P.V. Paleolimnological reconstruction of Late Glacial and Holocene environments of Middle Urals. LITHOSPHERE (Russia). 2016;(6):166-176. (In Russ.)
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