New Data on the Age of Neopleistocene Sediments in the Tunka Rift Valley (Southwestern Baikal Region) Derived from ~(14)C Dating of Large Mammal Fossils

摘要

The Tunka rift has served and continues to serve as one of the main test areas for investigating basin terrestrial Pleistocene sediments of the Baikal rift zone. This area hosts several stratotypes of Cenozoic sedimentary formations of the Baikal region [1, 2]. In recent years, detailed lithological—stratigraphic investigations of Quaternary sediments have been carried out in natural outcrops of Cenozoic sections in the Tunka rift [3, 4] with revision of known sections and thorough examination of new sections. These investigations provided a representative collection of fossil organic remains, which were dated by the radiocarbon method.