TY - JOUR

T1 - High-Resolution Triassic Biostratigraphy of the Kotelny Island (New Siberian Islands, Arctic Siberia)

AU - Konstantinov, A. G.

AU - Sobolev, E. S.

AU - Yadrenkin, A. V.

AU - Nikitenko, B. L.

AU - Pestchevitskaya, E. B.

AU - Lebedeva, N. K.

AU - Goryacheva, A. A.

AU - Devyatov, V. P.

N1 - Funding Information: The authors are grateful to A.Yu. Egorov, V.V. Sapyan-ik, and V.A. Vernikovsky for their valuable comments on the manuscript. The study is supported by the Russian Science Foundation (project no. 19-17-00091), the Russian Foundation for Basic Research (Project No. 20-05-00076), and programms FWZZ-2022-0005, FWZZ-2022-0004. Publisher Copyright: © 2022, Novosibirsk State University.

PY - 2022/4

Y1 - 2022/4

N2 - The study of Triassic paleontology and stratigraphy of various regions of northeastern Russia and adjacent Arctic shelf is essential not only for improving and refining zonal biostratigraphic schemes, interregional and global correlation of Triassic deposits, and resolving problems of stratigraphic boundaries but also for developing and substantiating a new generation of Triassic stratigraphic schemes, which could serve as the stratigraphic basis for different regional and detailed geological investigations of the Arctic. The results of the study were used to improve existing zonal scales based on various groups of fauna and palynomorphs, develop a more detailed biostratigraphic subdivision of the Triassic, and characterize individual horizons using both terrestrial and marine palynomorphs. The zonal scales are calibrated to each other and to the regional zonal scale of the Triassic of Siberia and northeastern Russia, which provides the subsequent correlation with the International Chronostratigraphic Chart of the Triassic System. The set of coeval zonal scales for the Triassic of Kotelny Island sections based on ammonoids, nautiloids, coleoids, bivalves, brachiopods, and foraminifers and the analysis of microphytoplankton and terrestrial palynomorph assemblages are a useful tool for detailed subdivision and correlation of the eastern part of the Laptev Sea shelf and adjacent regions of northeastern Russia.

AB - The study of Triassic paleontology and stratigraphy of various regions of northeastern Russia and adjacent Arctic shelf is essential not only for improving and refining zonal biostratigraphic schemes, interregional and global correlation of Triassic deposits, and resolving problems of stratigraphic boundaries but also for developing and substantiating a new generation of Triassic stratigraphic schemes, which could serve as the stratigraphic basis for different regional and detailed geological investigations of the Arctic. The results of the study were used to improve existing zonal scales based on various groups of fauna and palynomorphs, develop a more detailed biostratigraphic subdivision of the Triassic, and characterize individual horizons using both terrestrial and marine palynomorphs. The zonal scales are calibrated to each other and to the regional zonal scale of the Triassic of Siberia and northeastern Russia, which provides the subsequent correlation with the International Chronostratigraphic Chart of the Triassic System. The set of coeval zonal scales for the Triassic of Kotelny Island sections based on ammonoids, nautiloids, coleoids, bivalves, brachiopods, and foraminifers and the analysis of microphytoplankton and terrestrial palynomorph assemblages are a useful tool for detailed subdivision and correlation of the eastern part of the Laptev Sea shelf and adjacent regions of northeastern Russia.

KW - ammonoids

KW - Arctic

KW - bivalves

KW - brachiopods

KW - coleoids

KW - foraminifers

KW - nautiloids

KW - New Siberian Islands

KW - palynomorphs

KW - Triassic

KW - zonal scales

UR - http://www.scopus.com/inward/record.url?scp=85140469468&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/fefaa7f5-329d-33cd-8b3b-f71d135bb9b9/

U2 - 10.2113/RGG20214424

DO - 10.2113/RGG20214424

M3 - Article

AN - SCOPUS:85140469468

VL - 63

SP - 398

EP - 416

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 4

ER -