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The evolution of slump-induced destruction of Kukuy Griva slope (Lake Baikal) revealed on the base of the data of seismic and acoustic surveys

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Abstract

As a result of careful interpretation of the data of recent seismo-acoustic surveys, two major seismic complexes were identified in the structure of the upper sedimentary section of the north-western slope of Kukuy Griva (ridge). They are composed of several inner seismo-facies, which are very characteristic and separated with well-expressed regional reflector. Seismic and acoustic data revealed evidences of numerous landslide processes which were different in age and peculiarities of manifestation. For the first time, detailed schemes of seismo-facies distribution are compiled for major seismic complexes at the area. The boundary between seismic complexes is dated as 150 thousands years. It is shown that sliding was more intensive during Late Pleistocene and Holocene, reflecting activation of tectonic movements in this part of Baikal rift system.

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Correspondence to M. A. Solovyeva.

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Original Russian Text © M.A. Solovyeva, A.V. Starovoytov, G.G. Akhmanov, O.M. Khlystov, A.V. Khabuev, M.Yu. Tokarev, D.A. Chensky, 2016, published in Vestnik Moskovskogo Universiteta, Seriya 4: Geologiya, 2016, No. 5, pp. 47–59.

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Solovyeva, M.A., Starovoytov, A.V., Akhmanov, G.G. et al. The evolution of slump-induced destruction of Kukuy Griva slope (Lake Baikal) revealed on the base of the data of seismic and acoustic surveys. Moscow Univ. Geol. Bull. 71, 416–428 (2016). https://doi.org/10.3103/S0145875216060107

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  • DOI: https://doi.org/10.3103/S0145875216060107

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