Pleistocene sedimentation and paleogeography reconstruction for the Eastern coast of the Middle Baikal

  • Kolomiets V.L. 1, 2
  • Kononov E.E. 3, 4
  • Rasskazov S.V. 5, 6
  • 1 Geological Institute SB RAS, Sakhyanovoy str., 6a, Ulan-Ude, 670047, Russia
    2 D. Banzarov Buryat State University, Smolina str., 24a, Ulan-Ude, 670000, Russia
    3 V.B. Sochava Institute of Geography SB RAS, Ulan-Batorskaya str., 3, Irkutsk, 664033, Russia
    4 Limnological Institute, Ulan-Batorskaya str., 3, Irkutsk, 664033, Russia
    5 Institute of the Earth’s Crust SB RAS, Lermontov str., 128, Irkutsk, 664033, Russia
    6 Irkutsk State University, Karl Marx str., 1, Irkutsk, Russia
Keywords: intermountain basin, terrace complex, sedimentation, tectonic reactivation, ingression of Baikal waters

Abstract

At the bottoms of intermountain basins on the eastern coast of the Middle Baikal, Pleistocene sedimentation was dominated by fluvial and lacustrine deposits. High sedimentary terraces accumulated mainly in the alluvial-lacustrine environment, whereas the lower ones originated in river conditions. Episodes of the Baikal level rise were corresponded with the four phases of tectonic reactivations that accompanied with the Baikal water ingressions into river valleys.
Published
2020-08-27
Section
Articles