Skip to main content

The Сyclostratigraphy of the Konkian Deposits of Eastern Georgia (Eastern Paratethys, Kura Basin)


The middle Miocene (mainly the Konkian) shallow marine sediments of Eastern Georgia (Eastern Paratethys, Kura basin) have been studied for the first time with cyclostratigraphy methods. Time series analysis (Lomb-Scargle and REDFIT periodograms, Gaussian filter) revealed a statistically significant signal with a 2.4–2.7-m wavelength, which most likely corresponds to the precession cycle. It was established that the sedimentation rate of the studied sediments varied from 8.75 to 13.75 cm/kyr in dependence on different sedimentation environments. It is assumed that the studied Eastern Georgia Konkian deposits (Sartaganian and Veselyankian beds) accumulated during at least 475–600 kyr. The Sartaganian Beds can be correlated with interval of the highest sea-level rise at the TB 2.5 cycle.

This is a preview of subscription content, access via your institution.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.


  1. Bogdanovich, A.K., Stratigraphic and facies distribution of foraminifers in the Miocene of the Western Cis-Caucasian and problems of their origin, Tr. KFVNII, 1965, vol. 16, pp. 300–350.

    Google Scholar 

  2. Dzhanelidze, O.I., Foraminiferal zoning of the Konkian horizon of Georgia, Tr. Inst. Paleobiol. Akad. Nauk Gruzii, 1961, vol. 6, pp. 67–95.

    Google Scholar 

  3. Dzhanelidze, O.I., Foraminifery nizhnego i srednego miotsena Gruzii (Early and Middle Foraminifers of Georgia), Tbilisi: Metsniereba, 1970.

  4. Grachevckii, M.M., On the problem of vital conditions and historical evolution of fauna in the Konkian beds of eastern Georgia, Tr. Sekt. Paleobiol. Akad. Nauk GSSR, 1954, vol. 2, pp. 89–135.

    Google Scholar 

  5. Hammer, O., Harper, D.A.T., and Ryan, P.D., Past: paleontological statistics software package for education and data analysis, Palaeontol. Electronica, 2001, vol. 4, no. 1.

  6. Haq, B.U., Hardenbol, J., and Vail, P.R., Mesozoic and Cenozoic chronostratigraphy and cycles of sea-level changes, in Sea-Level Changes – an Integrated Approach. SEPM Spec. Publ., 1988, vol. 42, pp. 71–108.

    Google Scholar 

  7. Hilgen, F.J., Lourens, L.J., and Van Dam, J.A., The Neogene Period, in A Geological Time Scale, Cambridge: Cambridge Univ. Press, 2012, pp. 923–979.

    Google Scholar 

  8. Hohenegger, J., Aoria, S., and Wagreich, M., Timing of the Middle Miocene Badenian Stage of the Central Paratethys, Geol. Carpathica, 2014, vol. 65, pp. 55–66.

    Article  Google Scholar 

  9. Krasheninnikov, V.A., Basov, I.A., and Golovina, L.A., Vostochnyi Paratetis: tarkhanskii i konkskii regioyarusy (stratigrafiya, mikropaleontologiya, bionomiya, paleogeograficheskie svyazi) (Eastern Paratethys: Tarkhanian and Konkian Regional Stages (Stratigraphy, Bionomy, and Paleogeographic Links)), Moscow: Nauchn. Mir, 2003.

  10. Maissuradze, L. and Koiava, K., Biodiversity of Sarmatian foraminifera of the Eastern Paratethys, Bull. Georgian Nat. Acad. Sci., 2011, vol. 5, no. 1, pp. 143–151.

    Google Scholar 

  11. Maissuradze, L., Koiava, K., Kvaliashvili, L., and Spezzaferri, S., Biodiversity, evolution and biostratigrafic significance of Konkian foraminifers of Euxine-Caspian basin of Eastern Paratethys, Proc. Georgian Nat. Museum, Nat. Sci. Prehistory Sect., 2014, vol. 6, pp. 9–22.

    Google Scholar 

  12. Nevesskaya, L.A., Goncharova, I.A., Il’ina, L.B., et al., The Neogene stratigraphic scale of the Eastern Paratethys, Stratigr. Geol. Correl., 2003, vol. 11, no. 2, pp. 105–127.

    Google Scholar 

  13. Nevesskaya, L.A., Kovalenko, E.I., Beluzhenko, E.V., et al., Ob”yasnitel’naya zapiska k unifitsirovannoi regional’noi stratigraficheskoi skheme neogenovykh otlozhenii yuzhnykh regionov evropeiskoi chasti Rossii (Explanatory Note to the Unified Regional Stratigraphic Scheme of Neogene Deposits in the Southern European Part of Russia), Moscow: Paleontol. Inst. RAN, 2004.

  14. Paillard, D., Labeyrie, L., and Yiou, P., Macintosh program performs time series analysis, Trans. Am. Geophys. Union, 1996, vol. 77.

  15. Palcu, D., Tulbure, M., Bartol, M., et al., The Badenian–Sarmatian extinction event in the Carpathian foredeep basin of Romania: paleogeographic changes in the Paratethys domain, Global Planet. Change, 2015, vol. 133, pp. 346–358.

    Article  Google Scholar 

  16. Palcu, D.V., Golovina, L.A., Vernyhorova, Y.V., et al., Middle Miocene paleoenvironmental crises in Central Eurasia caused by changes in marine gateway configuration, Global Planet. Change, 2017, vol. 158, pp. 57–71.

    Article  Google Scholar 

  17. Pilipenko, O.V., Rostovtseva, Yu.V., and Rybkina, A.I., Petromagnetic and paleomagnetic studies of Konkian deposits of the Ujarma section (Kakhetia, Georgia), in Mater. 25-i yubileinoi Vseross. shkoly-seminara po problemam paleomagnetizma i magnetizma gornykh porod (Proc. 25th Jubilee All-Russ. School-Seminar on the Problems of Paleomagnetism and Magnetism of Rocks“), Moscow: Yaroslavl, 2019, pp. 193–198.

  18. Popov, S.V., Akhmetiev, M.A., Golovina, L.A., et al., Neogene regiostage stratigraphic scale of the south Russia: current state and perspectives, in Obshchaya stratigraficheskaya shkala Rossii: sostoyanie i problemy obustroistva (General Stratigraphic Scale of Russia: Current State and Ways of Perfection), Moscow: Nauka, 2013, pp. 356–359.

  19. Rostovtseva, Yu.V., Depositional environments in the Eastern Paratethys during the final Middle Miocene transgression (Kura Basin, Eastern Georgia), Lithol. Miner. Resour., 2020, vol. 55, no. 6, pp. 486–495.

    Article  Google Scholar 

  20. Rostovtseva, Yu.V., Rybkina, A.I., and Sokolova, A.Yu., The depositional setting of the Konkian sediments of the Taman Peninsula, Moscow Univ. Geol. Bull., 2019, vol. 74, no. 1, pp. 50–55.

    Article  Google Scholar 

  21. Schulz, M. and Mudelsee, M., REDFIT: estimating red-noise spectra directly from unevenly spaced paleoclimatic time series, Computers Geosci., 2002, vol. 28, pp. 421–426.

    Article  Google Scholar 

  22. Studencka, B., Gontsharova, I.A., and Popov, S.V., The bivalve faunas as a basis for reconstruction of the Middle Miocene history of the Paratethys, Acta Geol. Polonica, 1998, vol. 48, no. 3, pp. 285–342.

    Google Scholar 

  23. Weedon, G.P., Time Series Analysis and Cyclostratigraphy, Cambridge: Cambridge Univ. Press, 2003.

    Book  Google Scholar 

  24. Zhgenti, E.M. and Maissuradze, L.S., Karaganskii, kartvel’skii i konkskii regioyarusy Gruzii: istoriya razvitiya mollyuskov i foraminifer i ikh stratigraficheskoe znachenie (Karaganian, Kartvelian, and Konkian Regional Stages in Georgia: Evolution of Mollusks and Foraminifers and Their Stratigraphic Significance), Tbilisi: Universal, 2016.

Download references


This work was supported by the Russian Science Foundation (project no. 19-77-10075).

Author information

Authors and Affiliations


Corresponding authors

Correspondence to Yu. V. Rostovtseva, K. P. Koiava or A. I. Rybkina.

Additional information

Translated by D. Voroshchuk

About this article

Verify currency and authenticity via CrossMark

Cite this article

Rostovtseva, Y.V., Koiava, K.P. & Rybkina, A.I. The Сyclostratigraphy of the Konkian Deposits of Eastern Georgia (Eastern Paratethys, Kura Basin). Moscow Univ. Geol. Bull. 75, 579–588 (2020).

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI:


  • Konkian
  • Middle Miocene
  • Eastern Paratethys
  • sedimentation rate
  • cyclostratigraphy