I.V. Kunitsyna, A.V. Derduga, A.M. Nikishin, M.A. Korotkova

​

Tectonic framework and history of Palaeozoic series evolution in Northern Caspian

​

DOI 10.31087/0016-7894-2020-3-11-18

​

The Northern Caspian and neighbouring land are situated on the south-eastern margin of the ancient East European Platform. The Caspian Syneclise is the largest negative structure delineated in the water area; the Kalmyk-Ust’yurtsky system of Palaeozoic dislocations bounds this structure from the south. The main petroleum potential of the Caspian Syneclise is related to the Later Devonian – Middle Carboniferous carbonate series. In the waters of the Kalmyk-Ust’yurtsky system of Palaeozoic dislocations, these formations are not explored with drilling. In addition, the complicated structure of the Palaeozoic section is typical here. One cannot unambiguously interpret the data from 2D seismic lines in this territory. The presented paper focuses the attention on tectonic framework and history of the Palaeozoic sequence evolution in the southern part of the northern Caspian in the context of possible oil and gas occurrence. Within the Kalmyk-Ust’yurtsky system of Palaeozoic dislocations, the Karakul’sky-Smushkovsky, North Caspian (in the water area), and South Embinsky fold and thrust zones are identified. On the results of 2D seismic data interpretation, the Palaeozoic series of the North Caspian fold and thrust zone are complicated by thrusts and reverse faults. The identified structural elements are roughly EW trending. In the Later Devonian – Middle Carboniferous period, carbonate platforms were formed in the area under investigation. In the Later Carboniferous – Early Permian time, the North Caspian fold and thrust zone was a foreland basin formed as a result of orogeny in the area of the present-day Karpinsky Ridge. By the early Kungurian time, the Caspian Basin became isolated; evaporites were accumulated there. The Palaeozoic structural level obtained its present-day structure as a result of collision processes at the end of Triassic. In the place of modern Kalmyk-Ust’yurtsky system of Palaeozoic dislocations, the mountain system was formed with further development in erosion processes up to first kilometres. The investigations conducted allowed revealing the uplifts in the North Caspian fold and thrust zone; keeping in mind their lithological and stratigraphic structure and tectonic evolution, they can be oil and gas traps.

​

Key words: Northern Caspian; Caspian Syneclise; Kalmyk-Ust’yurtsky system of Palaeozoic dislocations; tectonic framework; evolution history; carbonate platform; foreland basin; orogeny; collision.

 

For citation: Kunitsyna I.V., Derduga A.V., Nikishin A.M., Korotkova M.A. Tectonic framework and history of Palaeozoic series evolution in Northern Caspian. Geologiya nefti i gaza. 2020;(3):11–18. DOI: 10.31087/0016-7894-2020-3-11-18. In Russ.

 

References

1. Glumov I.F., Malovitskii Ya.P., Novikov A.A., Senin B.V. Regional'naya geologiya i neftegazonosnost' Kaspiiskogo morya [Regional geology and oil and gas potential of the Caspian Sea].Moscow: OOO «Nedra-Biznestsentr»; 2004. 342 p. In Russ.
2. Baiymbetov A.Zh., Biteuova S.A., Dzhamikeshev A.M., Dosmukhambetov M.D., Zholtaev G.Zh., Iskaziev K.O., Marabaev Zh.N., Utegaliev S.A. Geologicheskoe stroenie i perspektivy neftegazonosnosti Severnogo i Srednego Kaspiya [Geological structure and petroleum potential of Northern and Middle Caspian]. Astana: Art Tribuna; 2005. 194 p. In Russ.

3. Guliev I.S., Fedorov D.L, Kulakov S.I. Neftegazonosnost' Kaspiiskogo regiona [Hydrocarbon potential of Caspian region]. Baku: Nafta-Press; 2009. 409 p. In Russ.
4. Guliev I.S., Levin L.E., Fedorov D.L. Uglevodorodnyi potentsial Kaspiiskogo regiona (sistemnyi analiz) [Hydrocarbon potential of Caspian region (systems analysis)]. Baku: Nafta-Press; 2003. 127 p. In Russ.
5. Afanasenkov A.P., Skvortsov M.B., Nikishin A.M., Murzin Sh.M., Polyakov A.A. Geologicheskaya istoriya i neftyanye sistemy Severnogo Kaspiya [Geological history and petroleum systems of Northern Caspian]. Vestnik Moskovskogo universiteta. Seriya 4. Geologiya. 2008;(3):3–10. In Russ.
6. Volozh Yu.A., Parasyna V.S. Astrakhanskii karbonatnyi massiv. Stroenie i neftegazonosnost' [Astrakhan carbonate massif. Structure and petroleum potential]. Moscow: Nauchnyi mir; 2008. 221 p. In Russ.
7. Pykhalov V.V. New data on geodynamic features of the formation of Karpinsky range. Astrakhan State Technical University. 2008;(6):96–100.
8. Tulegenova G., Seitov N.S. Tectonic zoning and geodynamic conditions of formation of structures in the north-caspian oil and gasregion. News of the National Academy of Sciences of the Republic of Kazakhstan. Series of geology and technical sciences. 2016;2(416):5–16. In Russ.
9. Abilkhasimov Kh.B. Osobennosti formirovaniya prirodnykh rezervuarov paleozoiskikh otlozhenii Prikaspiiskoi vpadiny i otsenka perspektivikh neftegazonosnosti [Features of natural reservoirs formation in Palaeozoic deposits of Caspian Depression, and assessment of their petroleum potential]. Moscow: Izdatel'skii dom Akademii Estestvoznaniya; 2016. 244 p. In Russ.
10. Nikishin A.M., Tsigler P.A., Panov D.I., Fokin P.A. Pozdnepaleozoiskaya, mezozoiskaya i kainozoiskaya tektonicheskaya istoriya i geodinamika yuzhnoi chasti Vostochnoi Evropy [Later Palaeozoic, Mesozoic, and Cenozoic tectonic history and geodynamics of Eastern Europe south]. Moscow: Geokart, GEOS; 2005. 163 p. In Russ.
11. Khain V.E., Popkov V.I., Voskresenskii I.A., Koronovskii N.V., Levin L.E., Mirzoev D.A., Pirbudagov V.M., Senin B.V., Yudin V.V. Tektonika yuzhnogo obramleniya Vostochno-Evropeiskoi platformy. Ob"yasnitel'naya zapiska k tektonicheskoi karte Chernomorsko-Kaspiiskogo regiona. Masshtab 1 : 2 500 000 [Tectonics of southern surrounding the East European Platform. Explanatory note to the Tectonic map of the Black Sea - Caspian region. Scale 1 : 2 500 000]. Krasnodar: Kuban. gos. un-t; 2009. 213 p. In Russ.

​

I.V. Kunitsyna
RN-Eksploreishn, Moscow, Russia
ivkunitsina@rn-exp.rosneft.ru
 

A.V. Derduga
Candidate of Geological and Mineralogical Sciences,
RN-Eksploreishn, Moscow, Russia
avderdura@rn-exp.rosneft.ru
 

A.M. Nikishin
Doctor of Geological and Mineralogical Sciences,
RN-Eksploreishn, Moscow, Russia
amnikishin@rn-exp.rosneft.ru
SCOPUS ID: 7003731197
 

M.A. Korotkova
Rosneft, Moscow, Russia
makorotkova@rn-exp.rosneft.ru