T.B. Mikerina
 
Sedimentation cycles and regularities of organic matter accumulation in Mesozoic and Cenozoic deposits of Western Ciscaucasia and north-western Caucasus
DOI 10.31087/0016-7894-2019-2-73-83

The paper discusses distribution of the dispersed organic matter in the Mesozoic and Cenozoic deposits of the western Caucasus. Composition and content of dispersed organic matter, features and patterns of its distribution determine generation of oil potential of formations and, therefore, oil and gas fields. Basing on the large amount of data (more than 2000 samples) on the dispersed organic matter content in Mesozoic and Cenozoic deposits, the authors substantiate the cyclicity of its accumulation in the western Ciscaucasia and north-western Caucasus. To date, cycles have been recorded in any natural processes, including geological ones, which made it possible to associate large- and small-scale sedimentation cycles identified in accordance with the dispersed organic matter content with the natural geological cycles (M. Bertrand, J. Phillips et. al) of IV, V, VI, and VII classes. History of geological evolution of the western Caucasus region reflects an existence of geological sedimentary cycles (mega-, macro-, and micro-cycles) in the Earth evolution and sedimentary rocks formation, as well as change of sedimentation regimes and conditions of dispersed organic matter accumulation. The most intensive oil generation stage in the J. Phillips Mesozoic macro-cycle belongs to the middle of the cycle – in the Middle Jurassic; the similar cycle in Cenozoic also belongs to the middle of the cycle – in the Upper Oligocene.

 

Key words: cyclicity; transgressive-regressive cycles; geological cycles; dispersed organic matter; stages of oil generation; sedimentation; Mesozoic and Cenozoic deposits; main zone of oil and gas generation.

For citation: Mikerina T.B. Sedimentation cycles and regularities of organic matter accumulation in Mesozoic and Cenozoic deposits of Western Ciscaucasia and north-western Caucasus. Geologiya nefti i gaza = Oil and gas geology. 2019;(2):73–83. DOI: 10.31087/0016-7894-2019-2-73-83.

References

1. Khain V.E. Large-scale cyclicity in tectonic history of the Earth and its possible causes. In: Tsikly kak osnova mirozdaniya. Plenarnye doklady Mezhdunarodnykh konferentsii po probleme tsiklov prirody i obshchestva. Izdanie 1. Stavropol: Izdatelstvo SKGTU; 2001. pp. 525–538.

2. Afas'ev S.G. Heraclitus cycles. In: Tsikly kak osnova mirozdaniya. Plenarnye doklady Mezhdunarodnykh konferentsii po probleme tsiklov prirody i obshchestva. Izdanie 1. Stavropol: Izdatelstvo SKGTU; 2001. pp. 298–320.

3. Frolov V.T. Geological cycles. In: Tsikly kak osnova mirozdaniya. Plenarnye doklady Mezhdunarodnykh konferentsii po probleme tsiklov prirody i obshchestva. Izdanie 1. Stavropol: Izdatelstvo SKGTU; 2001. pp. 279–297.

4. Khain V.E. Wilson cycles and Bertrand cycles. Doklady RAN. 1992;325(3)557–559.

5. Mikerina T.B. Mechanisms of organic matter accumulation and transformation in the Neogene deposits in the section of ultradeep СГ-12000-Kubansky well. In: Neftegazovaya geologiya na rubezhe vekov, prognoz, poiski, razvedka i osvoenie mestorozhdenii: doklady yubileinoi konferentsii. V 3-kh t. (St. Petersburg, 19–22 October, 1999). V. 2. Stratigrafiya, obshchaya geologiya, regional'nyi prognoz. pp. 282–285.

6. Mikerina T.B. Regularities of organic matter dispersion in the Mesozoic deposits of the western part of fore-Сaucasus and the northwestern part of the Caucasus. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii. 2011;(8):32–42.

7. Mikerina T.B. Stages of oil and gas formation in Mesozoic deposits of West Caucasus. Geologiya nefti i gaza = Oil and gas geology. 2013;(2):61–66.

8. Mikerina T.B., Fadeeva N.P. The cyclicity of organic-matter accumulation in the Cenozoic deposits of the Azov-Kuban petroleum basin. Moscow University Geology Bulletin. 2013;(4):234–241.

9. Mikerina T.B. Western part of the Ciscaucasus region. Geologiya, geografiya i global'naya energiya. 2013;(1):61–72.

10. Glebovskaya E.A. Infrared spectrometry in petroleum geochemistry. Leningrad: Nedra; 1971. 140 p.

11. Mikerina T.B., Babarinova G.B. Petroleum potential of carbonate series in the Khadyzhensky cordillera. Geologiya nefti i gaza = Oil and gas geology. 1989(10);40–45.

12. Mikerina T.B. Geological and geochemical information of content and composition of dispersed organic matter and its bituminous components in Upper and Middle Triassic sediments in sections and area West Fore-Caucasus. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii. 2009;(3):29–38.

13. Mikerina T.B. Triassic deposits in the western Ciscaucasia: geological and geochemical criteria of petroleum potential. In: Geologiya, burenie, razrabotka i ekspluatatsiya gazovykh i gazokondensatnykh mestorozhdenii: spets. sb. Moscow: Gazprom. 2009;(2):14–23.

14. Mikerina T.B. Katagenetic transformation of Cretaceous deposits organic substance in the region of Western Fore-Caucasus and NorthWestern Caucasus. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii. 2009;(9):37–44.

15. Mikerina T.B. some regularities of thermal regime change and catagenetic transformation of organic matter of Mesozoic oil and gas bearing complexes located in the Western Fore-Caucasus and the North-Western Caucasus. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii. 2010;(11):32–37.

16. Mikerina T.B., Fedotova S.A. POM of deep-seated zones of the Upper Cretaceous and Maikopsky deposits in the Taman Peninsula. Geologiya nefti i gaza = Oil and gas geology. 1988;(8):41–44.

17. Mikerina T.B. Catagenetic maturity of the Choraksky and Maikopsky deposits in the West Kuban trough. Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdenii. 2007;(8):4–11.

18. Korchagina Yu.I. Catagenesis of organic matter in source rocks. Priroda organicheskogo veshchestva sovremennykh i iskopaemykh osadkov. Moscow: Nauka; 1973. pp. 162–168.

19. Fadeeva N.P. Dispersed organic matter of source rocks in the West Kuban trough. Moscow: Nauka; 1979. pp. 248–256.

20. Konoplev M.Yu., Mikerina T.B., Mollaev Z.Kh., Popkov V.I. Influence of sedimentation features on the degree of transformation of the Choraksky and Maikopsky deposits in the West Kuban trough. Yuzhno-Rossiiskii vestnik geologii, geografii i global'noi energii. 2006;(10):44–51.

T.B. Mikerina

Kuban State University, Krasnodar, Russia;

bitumoid@bk.ru