S.V. Ershov, A.K. Kartashova
Berriasian-Aptian deposits of the West Siberian Yenisei-Khatanga region: stratigraphy, correlation, and zoning
DOI 10.31087/0016-7894-2020-5-27-38

The authors discuss topical issues of stratigraphy, correlation, and structural and facies zoning of the Berriasian-Aptian deposits in the north-eastern regions of the West-Siberian Petroleum Basin. Based upon the model of the Neocomian clinoform architecture in Western Siberia, recommendations to update the structural and facies zoning and stratigraphic chart for the Yenisei-Khatanga region are made. Selection of section types is taken as a basis for structural and facies zoning of the West Siberian Berriasian-Aptian deposits. Accordingly, it is proposed that subregion boundaries within the Yenisei-Khatanga region should be drawn along the lines of transition from the Lower Cretaceous shallow-marine horizontally stratified to clinoform deposits. The new stratigraphic chart of the Berriasian-Aptian deposits is presented for the Yenisei-Khatanga region. It differs from the chart approved in 2005 by the Interagency Commission on Stratigraphy in the fact that position of the Lower Cretaceous formations’ boundaries are updated, as well as the section breakdown is more detailed. Regional clay units are added to the chart, and separate beds or their groups are shown in the Malokhetsky and Baikalovsky formations. Moreover, similar to the Berriasian-Aptian stratigraphic charts for the West Siberian Basin, the proposed chart shows the sub-Achimov, Achimov, and above-Achimov series.

Key words: Western Siberia; Yenisei-Khatanga region; Berriasian-Aptian deposits; stratigraphic chart; structural and facies zoning; formation; stratotype; correlation.

Funding: The work was supported by the Fundamental Scientific Research Project No. 0331-2019-0017 “Models of geological structure, conditions of formation and prediction of oil and gas occurrence in Jurassic-Cretaceous deposits of the Siberian Arctic regions”.

 

For citation: Ershov S.V., Kartashova A.K. Berriasian-Aptian deposits of the West Siberian Yenisei-Khatanga region: stratigraphy, correlation, and zoning. Geologiya nefti i gaza. 2020;(5):27–38. DOI: 10.31087/0016-7894-2020-5-27-38. In Russ.

 

References

1. Postanovlenie po stratigraficheskim skhemam melovykh otlozhenii Zapadnoi Sibiri [Rules for stratigraphic charts of the West Siberian Cretaceous sequences]. In: Postanovlenie Mezhvedomstvennogo stratigraficheskogo Komiteta i ego postoyannykh komissii. Vyp. 36. St. Petersburg: Izd-vo VSEGEI; 2006. pp. 5–7. In Russ.
2. Kontorovich A.E., Ershov S.V., Kazanenkov V.A., Karogodin Yu.N., Kontorovich V.A., Lebedeva N.K., Nikitenko B.L., Popova N.I., Shurygin B.N. Сretaceous paleogeography of the west siberian sedimentary basin. Russian Geology and Geophysics. 2014;55(5–6):582–609. DOI: http://dx.doi.org/10.1016/j.rgg.2014.05.005.
3. Resheniya V Mezhvedomstvennogo regional'nogo stratigraficheskogo soveshchaniya po mezozoiskim otlozheniyam Zapadno-Sibirskoi ravniny [Decisions of the V Interagency meeting on regional stratigraphy of Mesozoic sequences in the West Siberian Plain]. Tyumen: ZapSibNIGNI; 1991. 54 p. In Russ.
4. Ershov S.V. Problems of selection and correlation of stratotype sections of the Neocomian in West Siberia in the context of clinoform structure. Russian Geology and Geophysics. 2017;58(8):963–972. DOI: 10.1016/j.rgg.2017.07.007.
5. Reshenie soveshchaniya po voprosam korrelyatsii i indeksatsii produktivnykh plastov mezozoiskikh otlozhenii Tyumenskoi oblasti [Decision ofthe meeting on correlation and indexing of Mesozoic reservoir beds in the Tyumen Region]. Tyumen: ZapSibNIGNI; 1986. 38 p. In Russ.

6. Krol' L.A., Stepanenko G.F., Stopolyanskaya L.B., Krinin V.A., Mishul'skii M.I. Korrelyatsiya yursko-melovykh otlozhenii Prieniseiskoi zony v svyazi s neftegazonosnost'yu [Correlation of the Jurassic-Cretaceous deposits in the Yenisei zone in the context of hydrocarbon potential]. In: Problemy stratigrafii mezozoya Zapadno-Sibirskoi plity (materialy k Mezhvedomstvennomu stratigraficheskomu soveshchaniyu po mezozoyu Zapadno-Sibirskoi plity). Novosibirsk: SNIIGGiMS; 2003. pp. 93–96. In Russ.
7. Isaev A.V., Krinin V.A., Filiptsov Yu.A., Karpukhin S.M., Sklyarov V.R. Perspektivnye neftegazonosnye ob"ekty klinoformnogo kompleksa Enisei-Khatangskogo regional'nogo progiba: rezul'taty seismogeologicheskogo modelirovaniya [Potential oil-and-gas bearing objects in the
clinoform complexes of the Yenisey-Khatanga regional trough: results of seismic-geological modeling]. Geology and mineral resources of Siberia. 2011;6(2):74–82. In Russ.
8. Isaev A.V., Krinin V.A., Karpukhin S.M. Perspektivy neftegazonosnosti klinoformnogo kompleksa Enisei-Khatangskogo regional'nogo progiba [Petroleum potential of clinoform sequence in the Yenisei-Khatanga regional trough]. Neftegazovaya geologiya. Teoriya i praktika. 2015;10(3). Available at: http://www.ngtp.ru/rub/4/31_2015.pdf. DOI: 10.15372/GiG20170808 (accessed on 06.07.2020). In Russ.

S.V. Ershov   iD 
Candidate of Geological and Mineralogical Sciences,
Head of Laboratory
The Trofimuk Institute of Petroleum Geology and Geophysics,
Siberian Branch of the Russian Academy of Sciences,
3, prospekt Koptyuga, Novosibirsk, 630090, Russia
e-mail: ErshovSV@ipgg.sbras.ru


A.K. Kartashova    iD 
Lead Engineer
The Trofimuk Institute of Petroleum Geology and Geophysics,
Siberian Branch of the Russian Academy of Sciences,
3, prospekt Koptyuga, Novosibirsk, 630090, Russia
e-mail: KartashovaAK@ipgg.sbras.ru