Abstract
This part of the paper addresses the geotectonic interpretation of the velocity model obtained from the results of seismic studies under the DOBRE-4 project in Ukraine. The velocity field does not show distinct lateral changes from the Precambrian platform towards the younger tectonic structures in the southwest. Hence, based on the seismic data alone, it is not possible to recognize the tectonic units that are known on the surface. The Moho has an undulating pattern over an interval with a length of ~150 km. The amplitude of the undulations reaches 8 to 17 km. The similar wavelike behavior, although on a shorter spatial scale and lower amplitude, is also typical of the upper crust and upper mantle. The presence of several separate horizons in the folded crust revealed by the velocity model is consistent with the presence of the folded systems which have different extensions on the different depth levels in the Earth’s crust. This situation is believed to be typical of folding on the lithospheric scale and to reflect the rheological stratification of the crust. The DOBRE-4 velocity section of the crust and adjacent part of the mantle promotes a clearer view of the geodynamical model describing the formation of the southwestern part of East European Platform in the Early Precambrian from the plate’s tectonic standpoint.
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References
Biot, M.A., Theory of folding of stratified viscoelastic media and its implications in tectonics and orogenesis, Geol. Soc. Am. Bull, 1961, vol. 72, pp. 1595–1620.
Bogdanova, S.V., Pashkevich, I.K., Gorbatschev, R., and Orlyuk, M.I., Riphean rifting and major Palaeoproterozoic crustal boundaries in the basement of the East European Craton: geology and geophysics, Tectonophysics, 1996, vol. 268, pp. 1–21.
Bogdanova, S.V., Ginto, O.B., Kurlovich, D.M., Lubnina, N.V., Nilsson, M.K., Orlyuk, M.I., Pashkevich, I.K., Shumlyanskyy, L.V., and Starostenko, V.I., Late Palaeoproterozoic mafic dyking in the Ukrainian Shield of Volgo-Sarmatia caused by rotation during the assembly of supercontinent Columbia (Nuna), Lithos, 2013, vol. 174, pp. 196–216.
Burov, E.B., Lobkovsky, L.I., Cloetingh, S., and Nikishin, A.M., Continental lithosphere folding in Central Asia, part II: Constraints from gravity and topography, Tectonophysics, 1993, vol. 226, pp. 73–87.
Chardon, D., Gapais, D., and Cagnard, F., Flow of ultrahot orogens: a view from the Precambrian, clues for the Phanerozoic, Tectonophysics, 2009, vol. 477, pp. 105–118.
Chekunov, A.V., et al., Litosfera Tsentral’noi i Vostochnoi Evropy: metodika i rezul’taty kompleksnoi interpretatsii (Lithosphere of Central and East Europe: techniques and results of multiinstrumental interpretation), K.: Naukova dumka. 1992. 247 c.
Chekunov, A.V., Sollogub, V.B., Galetskii, L.S., and Kurlov, N.S., Geodynamic model for the central part of the Ukrainian Shield and Krivoi Rog Superdeep Borehole, Geofiz. Zh., 1989, vol. 11, no. 4, pp. 3–13.
Cloetingh, S., Burov, E., and Poliakov, A., Lithosphere folding: primary response to compression? (from Central Asia to Paris Basin), Tectonics, 1999, vol. 18, pp. 1064–1083.
Cloetingh, S. and Burov, E., Lithospheric folding and sedimentary basin evolution: a review and analysis of formation mechanisms, Basin Res., 2011, vol. 23, pp. 257–290.
Geokhronologiya rannego dokembriya Ukrainskogo shchita.Proterozoi (Geochronology of Early Precambrian of the Ukrainian Shield. The Proterozoic), Shcherbak, N.P., Ed., Kiev: Naukova Dumka, 2008.
Gintov, O.B. and Isai, V.M., Tektonofizicheskie issledovaniya razlomov konsolidirovannoi kory (Tectonophysical Studies of the Faults in the Crystalline Crust), Kiev: Naukova dumka, 1988.
Gintov, O.B., Isai, V.M., and Kovalenko, V.N., Tectonophysical data on the formation mechanism of the first-order folds in the Krivoi Rog basin by the example of the Likhmanovskaya structure, Geol. Zh., 1990, no. 5, pp. 115–123.
Gintov, O.B. and Mychak, S.V., Geodynamic evolution of the Ingul megablock of the Ukrainian Shield according to the geological-geophysical and tectonophysical data I, Geofiz. Zh., 2011a, vol. 33, no. 3, pp. 102–118.
Gintov, O.B. and Mychak, S.V., Crustal stress states and strains in the central part of the Ingul megablock according to the results of tectonophysical study of the Novoukrainskii massif, Geofiz. Zh., 2011b, vol. 33, no. 2, pp. 28–45.
Golonka, J., Plate tectonic evolution of the southern margin of Eurasia in the Mesozoic and Cenozoic, Tectonophysics, 2004, vol. 381, pp. 235–273.
Grad, M., Jensen, S.L., Keller, G.R., Guterch, A., Thybo, H., Janik, T., Tiira, T., Yliniemi, J., Luosto, U., Motuza, G., Nasedkin, V., Czuba, W., Gaczynski, E., Sroda, P., Miller, K.C., et al., Crustal structure of the Trans-European suture zone region along POLONAISE’97 seismic profile P4, J. Geophys. Res., 2003, vol. 108, p. 2541.
Grad, M., Janik, T., Guterch, A., Sroda, P., Czuba, W., EUROBRIDGE’94-97, POLONAISE’97 and CELEBRATION 2000 Collab., Lithospheric structure of the western part of the East European Craton investigated by deep seismic profiles, Geol. Q., 2006b, vol. 50, no. 1, pp. 9–22.
Guterch, A., Grad, M., and Keller, G.R., Crust and lithospheric structure—long range controlled source seismic experiments in Europe, Treatise Geophys., Schubert, G., Romanowicz, B., and Dziewonski, A., Eds., Amsterdam: Elsevier, 2008, vol. 1, pp. 533–558.
Hippolyte, J.C., Geodynamics of Dobrogea (Romania): new constraints on the evolution of the Tornquist–Teisseyre line, the Black Sea and the Carpathians, Tectonophysics, 2002, vol. 357, pp. 33–53.
Il’chenko, T.V., Crustal velocity model of the Ukrainian Shield along Geortraverse VIII (Reni–Krivoi Rog), Geofiz. Zh., 1987, vol. 9, no. 1, pp. 44–51.
Kalvoda, J. and Bá bek, O., The margins of Laurussia in Central and Southeast Europe and Southwest Asia, Gondwana Res., 2010, vol. 17, pp. 526–545.
Litosfera Tsentral’noi i Vostochnoi Evropy: geotraversy IV,VI, VIII (Lithosphere of Central and Eastern Europe: Geotraverses IV,VI, VIII), Sollogub, V.B., Ed., Kiev: Naukova Dumka, 1988.
Pavlenkova, N.I. and Pavlenkova, G.A., Stroenie zemnoi kory i verkhnei mantii Severnoi Evrazii po dannym seismicheskogo profilirovaniya s yadernymi vzryvami (The Structure of the Earth’s Crust and Upper Mantle of Northern Eurasia According to the Nuclear-Explosion Seismic Profiling Data), Moscow: GEOKART, 2014.
Seghedi, A., The North Dobrogea orogenic belt (Romania): a review, in Peri-Tethys Memoir 6: Peri-Tethyan Rift, Wrench Basins and Passive Margins, Ziegler, P.A., Cavazza, W., Robertson, A.F.H., Crasquin-Soleau, S., Eds., Memoires du Museum national d’Histoire naturelle, 2001, vol. 186, pp. 237–257.
Seghedi, A., Palaeozoic formations from Dobrogea and Pre-Dobrogea—an overview, Turkish J. Earth Sci., 2012, vol. 21, pp. 669–721.
Sizova, E., Gerya, T., Brown, M., and Perchuk, L., Subduction styles in the Precambrian: insight from numerical experiments, Lithos, 2010, vol. 116, no. 3, pp. 209–229.
Sokoutis, D., Burg, J.-P., Bonini, M., Corti, G., and Cloetingh, S., Lithospheric-scale structures from the perspective of analogue continental collision, Tectonophysics, 2005, vol. 406, pp. 1–15.
Sollogub, V.B., Litosfera Ukrainy (Lithosphere of Ukraine), Kiev: Nauk. Dumka, 1986.
Sollogub, V.B. and Il’chenko, T.V., Velocity model of Geotraverse VIII, Dokl. Akad. Nauk Ukr. SSR, Ser. B., 1986, no. 12, pp. 14–16.
Stampfli, G.L. and Borel, G.D., A plate tectonic model for the Paleozoic and Mesozoic constrained by dynamic plate boundaries and restored synthetic oceanic isochrones, Earth Planet. Sci. Lett., 2002, vol. 196, pp. 17–33.
Starostenko, V., Janik, T., Lysynchuk, D., Sroda, P., Czuba, W., Kolomiyets, K., Aleksandrowski, P., Gintov, O., Omelchenko, V., Komminaho, K., Guterch, A., Tiira, T., Gryn, D., Legostaeva, O., Thybo, H., and Tolkunov, A., Mesozoic (?) lithosphere-scale buckling of the East European Craton in Southern Ukraine: DOBRE-4 deep seismic profile, Geophys. J. Int., 2013, vol. 195, no. 2, pp. 740–766.
Starostenko, V.I., Yanik, T., Gintov, O.B., Lysynchuk, D.V., Sroda, P., Czuba, V., Kolomiets, E.V., Aleksandrovskii, P., Omel’chenko, V.D., Kominaho, K., Guterkh, A., Tiira, T., Grin’, D.N., Legostaeva, O.V., Thybo, G., and Tolkunov, A.V., Crustal and upper mantle velocity model along DOBRE-4 profile from North Dobruja to central region of Ukrainian Shield: 1. Seismic data, Izv., Phys. Solid Earth, 2017, no. 2 (in press).
Tektonicheskaya karta Ukrainy. Masshtab 1: 1000000. Ch. I Poyasnitel’naya zapiska (1: 1000000 Tectonic Map of Ukraine, Part 1, Explanatory Note), Gurskii, D.S. and Kruglov, S.S., Eds., Kiev: UkrDGRI, 2007.
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Original Russian Text © V.I. Starostenko, T. Janik, O.B. Gintov, D.V. Lysynchuk, P. Środa, W. Czuba, E.V. Kolomiyets, P. Aleksandrowski, V.D. Omelchenko, K. Komminaho, A. Guterch, T. Tiira, D.N. Gryn, O.V. Legostaeva, H. Thybo, A.V. Tolkunov, 2017, published in Fizika Zemli, 2017, No. 2, pp. 36–44.
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Starostenko, V.I., Janik, T., Gintov, O.B. et al. Crustal and upper mantle velocity model along the DOBRE-4 profile from North Dobruja to the central region of the Ukrainian Shield: 2. geotectonic interpretation. Izv., Phys. Solid Earth 53, 205–213 (2017). https://doi.org/10.1134/S1069351317020136
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DOI: https://doi.org/10.1134/S1069351317020136