Influence of Climate Changes in the Late Pleistocene–Holocene on Composition of Bottom Sediments of the Selenga–Buguldeika Saddle, Lake Baikal
- Авторы: Markova Y.N.1, Oshchepkova A.V.1,2, Kuzmin M.I.1, Solotchina E.P.3, Solotchin P.A.3, Bychinskii V.A.1,2, Chudnenko K.V.1
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Учреждения:
- Vinogradov Institute of Geochemistry, Siberian Branch
- Irkutsk State University
- Sobolev Institute of Geology and Mineralogy, Siberian Branch
- Выпуск: Том 26, № 3 (2018)
- Страницы: 344-353
- Раздел: Article
- URL: https://ogarev-online.ru/0869-5938/article/view/177917
- DOI: https://doi.org/10.1134/S0869593818030097
- ID: 177917
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Аннотация
The study of bottom sediments of Lake Baikal recovered by submarine drilling at the Selenga–Buguldeika saddle (core VER93-2 st. 24GC) allowed us to reconstruct the climatic events in the Baikal region in the last 20–25 k.y. On the basis of the data on distribution of chemical elements in the core section, the mineral composition of sediments was calculated by the physicochemical modeling method. A study of how ratios of clay minerals changed in the section allowed us to identify the Pleistocene–Holocene boundary, Bølling–Allerød postglacial warming, and Late Dryas cooling. The calculated data on mineral composition of bottom sediments from the core VER93-2 demonstrate a good fit to the X-ray diffraction analysis results. The proposed approach can be used in calculation of mineral compositions of other sedimentary sequences with known chemical composition.
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Об авторах
Yu. Markova
Vinogradov Institute of Geochemistry, Siberian Branch
Email: solot@igm.nsc.ru
Россия, Irkutsk
A. Oshchepkova
Vinogradov Institute of Geochemistry, Siberian Branch; Irkutsk State University
Email: solot@igm.nsc.ru
Россия, Irkutsk; Irkutsk
M. Kuzmin
Vinogradov Institute of Geochemistry, Siberian Branch
Email: solot@igm.nsc.ru
Россия, Irkutsk
E. Solotchina
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Email: solot@igm.nsc.ru
Россия, Novosibirsk
P. Solotchin
Sobolev Institute of Geology and Mineralogy, Siberian Branch
Автор, ответственный за переписку.
Email: solot@igm.nsc.ru
Россия, Novosibirsk
V. Bychinskii
Vinogradov Institute of Geochemistry, Siberian Branch; Irkutsk State University
Email: solot@igm.nsc.ru
Россия, Irkutsk; Irkutsk
K. Chudnenko
Vinogradov Institute of Geochemistry, Siberian Branch
Email: solot@igm.nsc.ru
Россия, Irkutsk
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