New pleistocene key section Ulan-Zhalga of the Western Transbaikalia

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Abstract

The currant paper presents the preliminary results of the multidisciplinary study of the new Pleistocene section Ulan-Zhalga (51°29′40.75″ С, 107°20′18.11″ В) discovered in the Western Transbauikalaia in 2017. On the base of the paleontological, paleomagmetic, and lithological data the early, middle and late Pleistocene sediments were recognized in the section. The analysis of the rich small mammal fossils resulted in to trace the paleoenvironmental and climatic changes in the region during the Quaternary. The unique alternation of the 19 faunistic horizons and 11 fossil soils in the whole section, the high correlation of the paleomagnetic and paleontological data allow us to refer the studied section Ulan-Zhalga to addition new late Cenozoic Key section of the south Eastern Siberia. The new geological and paleontological data would be important for paleogeographical reconstruction and biostratigraphic analysis.

About the authors

M. A. Erbajeva

Geological Institute, Siberian Branch of the Russian Academy of Sciences; Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences

Author for correspondence.
Email: erbajeva@ginst.ru
Russian Federation, 6A, Sakhyanova street, Ulan-Ude, 670047; 1a, Favorsky street, Irkutsk, 664033

A. A. Shchetnikov

Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences; Institute of the Earth`s Crust, Siberian Branch of the Russian Academy of Sciences; Irkutsk Scientific Center, Siberian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 1a, Favorsky street, Irkutsk, 664033; 128, Lermontova street, Irkutsk, 664033; 134, Lermontova street, Irkutsk, 664033

A. Yu. Kazansky

Lomonosov Moscow State University; Geological Institute of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 1, Leninskie gory, Moscow, 119991; 7, Pyzhevsky lane, Moscow, 119017

G. G. Matasova

Trofimuk Institute of Petroleum Geology and Geophysics, Sibirian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090

F. I. Khenzykhenova

Geological Institute, Siberian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 6A, Sakhyanova street, Ulan-Ude, 670047

I. A. Filinov

Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences; Institute of the Earth`s Crust, Siberian Branch of the Russian Academy of Sciences; Irkutsk Scientific Center, Siberian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 1a, Favorsky street, Irkutsk, 664033; 128, Lermontova street, Irkutsk, 664033; 134, Lermontova street, Irkutsk, 664033  

O. D.-Ts. Namzalova

Geological Institute, Siberian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 6A, Sakhyanova street, Ulan-Ude, 670047

I. O. Nechaev

Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences

Email: erbajeva@ginst.ru
Russian Federation, 1a, Favorsky street, Irkutsk, 664033

References

  1. Гиббард Ф. // Геология и Геофизика. 2015. Т. 56. № 4. С. 873-875.
  2. Erbajeva M.A., Alexeeva N.V. // Quatern. Intern. 2000. V. 68-71. P. 67-75.
  3. Алексеева Н.В. Эволюция природной среды Западного Забайкалья в позднем кайнозое. М.: ГЕОС, 2005, 141 с.
  4. Кузьмин М.И., Ярмолюк В.В. // Геология и Геофизика. 2006. Т. 47. № 1. С. 7-25.

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