OJGOpen Journal of Geology2161-7570Scientific Research Publishing10.4236/ojg.2019.910040OJG-95200ArticlesEarth&Environmental Sciences New Data on the Litho- and Biostratigraphy of the J/K Boundary Interval of the Lower Reaches of the Lena River (Eastern Siberia) IgorN. Kosenko1*OlgaS. Urman2EgorK. Metelkin2BorisN. Shurygin2AlexanderE. Igolnikov3Department of Geology and Geophysics, Novosibirsk State University, Novosibirsk, RussiaState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology CAS, Nanjing, ChinaTrofimuk Institute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia20092019091055455715, August 201917, September 2019 20, September 2019© Copyright 2014 by authors and Scientific Research Publishing Inc. 2014This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/

New data on the litho- and biostratigraphy of the Jurassic/Cretaceous (J/K) boundary interval of the lower reaches of the Lena river, at the Cape Chekurovka and Cape Chucha, are presented. Volgian-Valanginian interval of the Chekurovka section is represented by Buolkalakh and Kigilyakh formations and corresponds to beds with Buchia fisheriana, beds with B. unschensis, beds with B. okensis and B. volgensis, beds with B. volgensis, beds with B. volgensis and B. tolmatschowi and beds with B. keyserlingi. Volgian-Valanginian interval of the Chucha section is represented by Chonoko, Khairgass and Kigilyakh formations and corresponds to beds with B. unschensis, beds with B. volgensis and B. okensis, beds with B. volgensis and B. tolmatschowi and beds with B. keyserlingi.

Stratigraphy Jurassic Cretaceous Siberia Lena RiverAcknowledgements

This work is supported by the Chinese Academy of Geological Sciences (DD20190009), National Natural Science Foundation of China (41730317), RFBR (18-05-70074) and RSF (18-17-00038). This is a contribution to UNESCO-IUGS IGCP Projects 632 and 679.

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

Cite this paper

Kosenko, I.N., Urman, O.S., Metelkin, E.K., Shurygin, B.N. and Igolnikov, A.E. (2019) New Data on the Litho- and Biostratigraphy of the J/K Boundary Interval of the Lower Reaches of the Lena River (Eastern Siberia). Open Journal of Geology, 9, 554-557. https://doi.org/10.4236/ojg.2019.910040

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