The Bazhenov Horizon of West Siberia: structure, correlation, and thickness

• Published in: Russian geology and geophysics Vol. 59; no. 7; pp. 846 - 863
• Main Authors: Ryzhkova, S.V., Burshtein, L.M., Ershov, S.V., Kazanenkov, V.A., Kontorovich, A.E., Kontorovich, V.A., Nekhaev, A.Yu, Nikitenko, B.L., Fomin, M.A., Shurygin, B.N., Beizel, A.L., Borisov, E.V., Zolotova, O.V., Kalinina, L.M., Ponomareva, E.V.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2018; Allerton Press
• Subjects: applied (geophysical surveys & methods); Asia; basins; Bazhenov Formation; Bazhenov Horizon; Berriasian; common-depth-point method; Commonwealth of Independent States; correlation; Cretaceous; deep-seated structures; Economic geology; energy sources; geochemical methods; geophysical methods; Geophysics; Jurassic; Lower Cretaceous; Maksimkin Yar Formation; marginal filter; Mesozoic; Mulym'ya Formation; natural gas; petroleum; petroleum exploration; reflection methods; reservoir rocks; sedimentary basins; seismic methods; Siberia; source rocks; stratigraphic units; Stratigraphy; Tutleim Formation; well-logging; well-to-well correlation; West Siberia; Yanovstan Formation; well-to-well correlation; Bazhenov Horizon; West Siberia; marginal filter; Bazhenov Formation
• ISSN: 1068-7971; 1878-030X
• DOI: 10.1016/j.rgg.2018.07.009

The type sections of the Bazhenov Horizon and formations recognized within this horizon have been identified based on a comprehensive analysis of paleontological, lithological, geophysical (well-log and CDP seismic data), and geochemical data on the West Siberian Basin. The Bazhenov Horizon was traced throughout the entire West Siberian sedimentary basin. The criteria for the recognition of the top and base of this horizon within the stratigraphic equivalents of the Bazhenov Formation were suggested. The proposed facies-stratigraphic zonation of the Bazhenov Horizon reflects the spatial location of all formations identified within this horizon. As seen on the newly proposed thickness map, the Bazhenov Horizon reaches a thickness of 15-25 m within the Bazhenov and Tutleim Formations, 30-35 m within the Mulym’ya Formation, 30-45 m within the Danilov Formation, 40-65 m within the Mar’yanovka Formation, up to 100 m within the Golchikha Formation, >350 m within the Yanovstan Formation, up to 35 m within the Bagan Formation, and 35-40 m within the Maksimkin Yar Formation. A marginal filter (according to A.P. Lisitzin) has been identified along the East Siberian land.