publication . Article . 2017

AGE OF MUD BRECCIA FROM MUD VOLCANOES IN ACADEMICIAN RIDGE, LAKE BAIKAL

O. M. Khlystov; Hirotsugu Minami; Akihiro Hachikubo; Satoshi Yamashita; Marc De Batist; Lieven Naudts; A.V. Khabuev; A. G. Chenskiy; N. A. Gubin; S. S. Vorobyeva;
Open Access
  • Published: 01 Dec 2017 Journal: Geodynamics & Tectonophysics, volume 8, pages 923-932 (eissn: 2078-502X, Copyright policy)
  • Publisher: Institute of Earth's Crust, Siberian Branch of the Russian Academy of Sciences
Abstract
Lake Baikal is the only freshwater reservoir on Earth with gas-hydrate accumulations in its bottom sediments, partly due to the activity of mud volcanoes. This paper describes a group of mud volcanoes recently discovered on the slope of the Academician Ridge between the northern and central Lake Baikal basins. Our analysis of diatom skeletons in the mud breccia sampled from the study area shows a high abundance of Cyclotella iris et var. These extinct species were also discovered in a core sample from BDP-98 borehole. Based on the biostratigraphic and seis-mostratigraphic correlations, the age of the mud breccia in the studied mud volcanoes ranges from the Late ...
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free text keywords: mud volcanic breccia, gas hydrate, diatom analysis, seismic stratigraphy, lake baikal, Biostratigraphy, Diatom, biology.organism_classification, biology, Late Miocene, Geology, Breccia, Borehole, Mud volcano, Geochemistry, Core sample, Ridge, geography.geographical_feature_category, geography, lcsh:Science, lcsh:Q
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