Deformations in the Upper Cretaceous — Neogene sediments of the South-Western Crimea on the base of new tectonophysical data
Deformational structures (tectonic planes with slickensides, folds, parageneses of fractures) аre described in the Upper Cretaceous — Neogene sediments of the southwestern Crimea. The purpose of the study is to clarify the scope and types of deformation in the Alpine orogenese stage. Strike-slip planes are dominated in the studied structures. Slickensides of reverse and thrust type account for 20% of all fractures. Deformations of various types are concentrated in the most plastic rocks and weak zones. The rest of the Upper Cretaceous and Cenozoic sediments have monoclinal bedding. It is shown that some part of the deformations in the rocks of the Tauric series and of the rocks of Middle Jurassic - Lower Cretaceous age could occur during the Alpine period. The geological data are given, which confirm the presence of compression structures for all the Mountainous Crimea during the Alpine stage. Orientation of the restored axes of stress field shows that compression deformation is caused by pressure of the Black Sea microplate towards Crimea. The strike-slip-type deformations, within the studied area, dominate over the reverse type ones. Folded-thrust deformations are located more to the south — in the continental slope and shelf respectively, in the interaction area of the Black Sea microplate and the Crimea.
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Alekhin V. I., 2006. Fields of total strain and stress in uneven rock complexes Azov block of the Ukrainian shield. NaukovI pratsI DonNTU. SerIya gIrnicho-geologIchna 2(is.111), 144—152 (in Russian).
Afanasenkov A. P., Nikishin A. M., Obukhov A. N., 2007. Geological structure and hydrocarbon potential of the Eastern Black Sea region. Moscow: Nauchnyy Mir, 172 p. (in Russian).
Borisenko L. S., 1997. Criticism thrust models Crimea. Geodynamics of the Crimean Black Sea region: Collection of Materials Conf. Simferopol, P. 47—51 (in Russian).
Verkhovtsev V. G., 2007. Newest platform geostructure Ukraine and the dynamics of their development: Author's Abstract. Dr. geol. sci. dis. Kiev, 20 p. (in Russian).
Wolfman Yu. M., 2008. On the influence of kinematic environments on cyclicity of geological processes within the Crimea and Northern Black Sea during the Alpine stage. Geofizicheskiy zhurnal 30(5), 101—114 (in Russian).
Gerasimov M. E., 1994. Deep structure and evolution of the southern margin of the East European Platform on seismostratigraphic data in connection with oil-gas: Dr. geol.-min. sci. Moscow, 75 p. (in Russian).
Gintov O. B., 2005. Field tectonophysics and its application in the study of crustal deformation in Ukraine. Kiev: Feniks, 572 p. (in Russian).
Gintov O. B., Egorova T. P., Tsvetkova T. A., Bugaenko I. V., Murovskaya A. V., 2014. Geodynamic features junction zone of the Eurasian plate and the Alpine-Himalayan belt within Ukraine and adjacent territories. Geofizicheskiy zhurnal 36(5), 26—63 (in Russian).
Gonchar V. V., 2013. Collision model Crimean orogen: the experience of research using finite element method. Geofizicheskiy zhurnal 35(6), 146—164 (in Russian).
Gonchar V. V., Gintov O. B., 2006. Scales and mechanisms of tectonic movements of the southern coast of the intrusions according to the analysis palaeostresses. Izvestiya vuzov. Geologiya i razvedka (6), 11—19 (in Russian).
Gushchenko O. I., 1979. Method of kinematic analysis of the structures of destruction in the reconstruction of tectonic stress fields. In: Stress and strain fields in the lithosphere. Moscow: Nauka, P. 7—25 (in Russian).
State Geological map of Ukraine, 2006. 1 : 200 000. The Crimea series. Sheets L-36-XXVIII (Evpatoria), L-36-XXXIV (Sevastopol) and explanatory notes thereto. Kyiv: State Geol. Surv., Pivdenekoheotsentr, 175 p. (in Ukrainian).
Zaika-Nowatskiy V. S., Guk V. I., Nerodenko V. M., Sokolov I. P., 1976. Geological structure of the Crimean foothills within Alma Salgirsky interfluve. Allowance. Kiev: High School, 86 p. (in Ukrainian).
Ivanov V. E., Lomakin I. E., Topolyuk A. S., Efremtseva L. L., Boldyrev S. N., 2009. Features tectonics south-western Crimea. Geologiya i poleznyie iskopaemyie Mirovogo okeana (4), 27—39 (in Russian).
Kazantsev Yu. V., 1982. Tectonics Crimea. Moscow: Nauka, 112 p. (in Russian).
Mileev V. S., Rozanov S. B., Baraboshkin E. Yu., Shalimov I. V., 1997. Geological structure and evolution of the Crimean Mountains. Vestnik MGU. Ser. 4. Geologiya (3), 17—21 (in Russian).
Moiseev A. S., 1930. Geology Southwest Main ridge of Crimean mountains. Materialyi po obschey i prikladnoy geologii is.189, 45—67 (in Russian).
Murovskaya A. V., 2012. Stress-strain state of West Mountain Crimea in the Oligocene-Quaternary by tectonophysical data. Geofizicheskiy zhurnal 34(2), 109—119 (in Russian).
Muratov M. V., 1960. A brief sketch of the geological structure of the Crimean. Moscow: Gosnauchizdat, 205 p. (in Russian).
Nikishin A. M., Alekseev A. S., Baraboshkin E. Yu., Bolotov S. N., 2006. Geological history Bakhchisaray district. Moscow: MSU Publ., 59 p. (in Russian).
Tectonic map of Ukraine. 1: 1000 000. Part 1. Explanatory note. Eds D. S. Gurskiy, S. S. Kruglov. Kyiv: UkrDGRI, 2007. 95 p. (in Ukrainian).
Yudin V. V., 2011. Geodynamics Crimea. Simferopol: DIAYPI, 336 p. (in Russian).
Yudin V. V., 2009. Geological map and sections of the Mountain, foothill Crimea. 1: 200 000. Simferopol: Soyuzkarta (in Russian).
Angelier J., 1997. Fault slip analysis and paleostress reconstruction. In: Continental Deformation. Oxford: Pergamon Press, P. 53—100.
Delvaux D., 1993. The TENSOR program for paleostress reconstruction: examples from the east African and the Baikal rift zones. EUG VII Strasbourg, France, 4—8 April. Abstract supplement № 1 to Terra Nova 5, P. 216.
Delvaux D., Sperner B., 2003. New aspects of tectonic stress inversion with reference to the TENSOR program. New insights into structural interpretation and modelling. Geol. Soc. London, Spec. Pub. 212, 75—100.
Finetti I., Bricchi G., Del Ben A., Pipan M., Xuang Z., 1988.Geophysical study of the Black Sea. Boll. Geof. Teor. Appl. 30(117-118), 197—324.
Khriachtchevskaia O., Stovba S., Stephenson R., 2010. Cretaceous-Neogene tectonic evolution of the northern margin of the Black Sea from seismic reflection data and tectonic subsidence analysis 3. In: Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform. Geol. Soc. London, Spec. Publ. 40, 137—157.
Popadyuk I., Khriachtchevskaia O., Stovba S., 2010. Geology of the Crimean Mountains in the context of petroleum exploration in the Black See. AAPG European Region Conference and Exhibition, Kyiv, Ukraine, October 17—19, 50 p.
Saintot A., Angelier J., Chorowicz J., 1999. Mechanical significance of structural patterns identified by remote sensing studies: a multiscale analysis of tectonic structures in Crimea. Tectonophysics 313, 187—218.
Sheremet-Korniyenko Y., Sosson M., Gintov O., Murovskaya A., Yegorova T., Muller C., 2014. New datings (by Nannofossils assemblages) and structural data from flysch formations of the Crimea Peninsula (Ukraine): consequence on the tectonic evolution of the Eastern Black Sea. In: Tectonic evolution of the Eastern Black Sea and Caucasus. Geol. Soc. London, Spec. Publ., in preparation.
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