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Doklady Earth Sciences

, Volume 473, Issue 1, pp 266–270 | Cite as

U–Th age of the Kazantsevo (MIS 5) Horizon of the Upper Neopleistocene Ust Oda reference section, Baikal Region

  • F. E. Maksimov
  • A. A. Schetnikov
  • V. Yu. Kuznetsov
  • I. A. Filinov
  • V. A. Grigoriev
  • V. B. Savenko
  • A. Yu. Kazanskii
  • G. G. Matasova
  • A. A. Starikova
Geology
  • 19 Downloads

Abstract

For the first time, the organic sediments of the Kazantsevo Horizon (Baikal Region) were characterized geochronometrically. The 230Th/U age of the buried gyttias from the Upper Neopleistocene Ust Oda stratotypical section on the Kitoi River was determined using a new version of isochronous approximation. The assemblage of all the 230Th/U age data, which were obtained taking into account the errors in the entire range from 136 to 86 kyr, indicates that most likely gyttia age is 115–104 kyr (MIS 5d). Thus, the paleontological conclusions on the Kazantsevo age of the Ust Oda Formation with buried gyttias are confirmed. Our geochronometric data supplement and make more reliable the age model of the formation of sedimentary rocks of the Ust Oda section.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • F. E. Maksimov
    • 2
  • A. A. Schetnikov
    • 1
    • 3
  • V. Yu. Kuznetsov
    • 2
  • I. A. Filinov
    • 1
    • 3
  • V. A. Grigoriev
    • 2
  • V. B. Savenko
    • 2
  • A. Yu. Kazanskii
    • 4
  • G. G. Matasova
    • 5
  • A. A. Starikova
    • 2
  1. 1.Institute of the Earth’s Crust, Siberian BranchRussian Academy of SciencesIrkutskRussia
  2. 2.St. Petersburg State UniversitySt. PetersburgRussia
  3. 3.Institute of Geochemistry, Siberian BranchRussian Academy of SciencesIrkutskRussia
  4. 4.Faculty of GeologyMoscow State UniversityMoscowRussia
  5. 5.Trofimuk Institute of Petroleum Geology and Geophysics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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