Biostratigraphy of larger foraminifera in the Eocene (upper Ypresianlower Bartonian) sequences of the Southern Slope of the Western Caucasus (Russia, NE Black Sea). Correlation with regional and standard planktonic foraminiferal zones
DOI:
https://doi.org/10.1344/105.000000277Keywords:
Lower/Middle Eocene, Larger and planktonic foraminifera, Biostratigraphy, Caucasus, PerithetysAbstract
The biostratigraphic analysis of two Eocene (Upper Ypresian-Lower Bartonian) sections located on the Southern Slope of the Western Caucasus (Inal and Loo sections in the Tuapse and Sochi districts, respectively) was carried out using planktonic and larger foraminifera. The planktonic foraminiferal assemblages recorded in these southern sections were similar to those recorded in the North Caucasian region and enabled to recognize the lower Ypresian to lower Bartonian zones of the local Caucasian biostratigraphic scale. The turbiditic sedimentary processes recorded in these sections affected the composition of larger foraminiferal assemblages, which is mostly represented by nummulitids and orthophragmines. Although the larger foraminiferal assemblages are typical of the Peritethys and also resemble those reported in the Northern Caucasian region, the Tethyan SBZ zonal scheme could be applied and SBZ11 to 15/16 zones were identified (at least late Ypresian to middle Lutetian). This integrated study improves the correlation between the planktonic and benthonic local biostratigraphic scales in the Caucasus and allows their correlation with the standard and other biostratigraphic scales in neighbouring Tethyan regions.
References
Akhmetiev, M.A., Beniamovski, V.N., 2003. Stratigraphic scheme of marine Paleogene in the South European Russia. Bulletin Moskovskogo Obshchestva Ispytatelei Prirody, Otd. Geol., 78(5), 40-50 (in Russian).
Berggren, W.A., Kent, D.V., Swisher, C.C., Aubry, M.-P., 1995. A revised Cenozoic geochronology and Chronostratigraphy. In: Berggren W.A., Kent D.V. Aubry, M.P., Hardenbol, J. (eds.): Geochronology, Time Scales and Global Stratigraphic Correlations. Tulsa, SEPM Special Publication 54, 129-212.
Berggren, W.A., Pearson, P.N., 2005. A revised tropical to subtropical Paleogene planktonic foraminiferal zonation. Journal Foraminiferal Research, 35, 279-298.
Blondeau, A., 1972. Les Nummulites. Paris, Vuibert Ed., 254 pp.
Bugrova, E. (ed.), 2005. Guidebook of microfauna. Vol. 8. Cenozoic Foraminifera. Spb. VSEGEI Press, 324 pp.
Gradstein, F.M., Ogg, J.G., Smith, A.G. (eds.), 2004. A Geological Time Scale 2004. Cambridge University Press, 589 pp.
Grossgeim, V.A., 1960. Paleogene of North-Western Caucasus. Moscow, Trudy of Krasnodar filial VNII, 4, 190 pp. (in Russian).
Jarzeva, M.V., Lotsch, D., Nemkov, G.I., 1968. Zur Nummulitenfauna des mittleren und hoheren Eozans der Deutschen Demokratischen Republik. Geologische Jahrgang 17, H.4, 418-459.
Kacharava, Z.D., 1981. Eocene discocyclinids of Georgia and their biostratigraphic significance. Tbilisi, Mecniereba, 176 pp. (in Russian).
Keller, B.M., Menner, V.V., 1945. The Paleogene deposits of Sochi district and their submarine slumps. Bulletin de la Société des Naturalistes de Moscou. Sect. Geol., XX (1-2), 83-103 (in Russian)
Khain, V.E., 2001. Tectonics of continents and oceans (year 2000). Moscow, Scientific world, 606 pp. (in Russian).
Koren’, T.N. (ed.), 2006. Biozonal stratigraphy of Phanerozoic in Russia. Spb. VSEGEI Press, 255 pp. (in Russian).
Krashenninikov, V.A., Muzylev, N.G., 1975. Relationship of the Zonal Scales based on Planktonic Foraminifera and Nannoplankton in Paleogene sections of the North Caucasus. Voprosy micropaleontology, vyp. 18, 212-224 (in Russian).
Less, G., 1987. Az Europai Orthophragminak oslenytana esretegtana. Budapest, Geologica Hungarica, ser. Paleontologica, fasc. 511, 373 pp.
Less, G., 1998. The zonation of the Mediterranean Upper Paleocene and Eocene by Orthophragminae. Opera Dela Slovenska Akademija Znanosti in Umetnosti, IV, 34(2), 21-43.
Martini, E., 1971. Standard Tertiary and Quaternary calcareous nannoplankton zonation. In: Farinacci, A. (ed.). Proceedings of the Second Planktonic Conference, Roma, 1970. Edizioni Tecnoscienza, Roma, 2, 739-785.
Metalnikov, M.D., 1935. Note about nummulites discovered in the Sochi neighbourhoods. Trudy NGRI, Ser. B, vyp. 51, 35-41 (in Russian).
Nemˇcok, J., Vanˇ ová, M., 1977. Redeposition of Larger Foraminifers in East Slovakian Flysch Belt. Geologické Práce, Správy 67, 105-134.
Schaub, H., 1981. Nummulites et Assilines de la Tethys Paléogène. Taxonomie, phylogénèse et biostratigraphie. Mémoires suisses de Paléontologie. Bâle, 104-105-106, 236 pp.
Serra-Kiel, J., Hottinger, L., Caus, E., Drobne, K, Ferrández, C., Jauhri, A.K., Less, G., Pavlovec R., Pignatti, J., Samso J.M., Schaub, H., Sirel, E., Strougo, A., Tambareau, Y., Tosquella, J., Zakrevskaya, E., 1998. Larger foraminiferal biostratigraphy of the Tethyan Paleocene and Eocene. Bulletin de la Societé Géologique de France, 169(2), 281-299.
Subbotina, N.N., Voloshinova, N.A., Azbel’, A.Ya. (eds.), 1981. Introduction to Foraminifera research. Leningrad, Nedra, 209pp.
Zakrevskaya, E., 2004. Distribution of Larger Foraminifera near the Lower-Middle Eocene boundary in the Northeastern Peritethys. Neues Jahrbuch Geologishes und Paläontologishes Abhandlungen, 234 (1-3), 335-360.
Zakrevskaya, E., 2005. Stratigraphic distribution of Larger Foraminifera in the Paleogene of Northeastern Peritethys. Stratigraphy and Geological correlation, 13(1), 66-86.
Zernetski, B.F., Lul’eva S.A., Ryabokon’ T.S., 2003. Analysis of the Bakhchisaraian stratotype of the Ukraine Paleogene from the point of view of recent zonal biostratigraphy. Geologicheskii Journal NASU, Kiev, 3, 98-108 (in Russian).
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Copyright
Geologica Acta is the property of the UB, GEO3BCN, IDAEA and UAB. Geologica Acta must be cited for any partial or full reproduction. Papers are distributed under the Attribution-Share Alike Creative Commons License. This license allows anyone to reproduce and disseminate the content of the journal and even make derivative works crediting authorship and provenance and distributing possible derivative works under the same or an equivalent license.
Author Rights
Authors retain the copyright on their papers and are authorized to post them on their own web pages or institutional repositories. The copyright was retained by the journal from the year 2003 until 2009. In all cases, the complete citation and a link to the Digital Object Identifier (DOI) of the article must be included.
The authors can use excerpts or reproduce illustrations of their papers in other works without prior permission from Geologica Acta provided the source of the paper including the complete citation is fully acknowledged.
