First data on the environment and climate change within the Zhom-Bolok volcanic field (Eastern Sayan Mountains) in the Middle–Late Holocene


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Abstract

This paper considers the results of comprehensive lithological, biostratigraphic, and geochemical investigation of sediments in Khara-Nur Lake (Eastern Sayan Mountains) situated in the area of the greatest Holocene eruptions in the Central Asia Region. The age of the basal sediment layer is estimated at 6881 ± 53 years. The local natural environment and climate have undergone great changes since that time. The Holocene volcanic events did not exert a catastrophic impact on the regional landscape, but they caused dramatic changes in the local vegetation. The well-defined correlation of the regional events with the well-known records of the natural environment in the Northern Hemisphere is indicative of the decisive influence of global atmospheric circulation on restructuring the landscape and climate system in the Zhom-Bolok Region in the Middle–Late Holocene.

About the authors

E. V. Bezrukova

Vinogradov Institute of Geochemistry, Siberian Branch; Institute of Archeology and Ethnography, Siberian Branch

Author for correspondence.
Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033; pr. Akad. Lavrentieva 17, Novosibirsk, 630090

A. A. Shchetnikov

Institute of the Earth’s Crust, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Lermontova 128, Irkutsk, 664033

M. I. Kuzmin

Vinogradov Institute of Geochemistry, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033

O. G. Sharova

Vinogradov Institute of Geochemistry, Siberian Branch; Institute of Archeology and Ethnography, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033; pr. Akad. Lavrentieva 17, Novosibirsk, 630090

N. V. Kulagina

Institute of the Earth’s Crust, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Lermontova 128, Irkutsk, 664033

P. P. Letunova

Vinogradov Institute of Geochemistry, Siberian Branch; Institute of Archeology and Ethnography, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033; pr. Akad. Lavrentieva 17, Novosibirsk, 630090

E. V. Ivanov

Vinogradov Institute of Geochemistry, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033

M. A. Kraynov

Vinogradov Institute of Geochemistry, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033

E. V. Kerber

Vinogradov Institute of Geochemistry, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033

I. A. Filinov

Institute of the Earth’s Crust, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Lermontova 128, Irkutsk, 664033

O. V. Levina

Vinogradov Institute of Geochemistry, Siberian Branch

Email: bezrukova@igc.irk.ru
Russian Federation, ul. Favorskogo 1a, Irkutsk, 664033

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