The main geodynamic border and seismic visualization of plumes under the East European Platform
According to the Taylor approximation method of the three-dimensional P-velocity mantle model under Eurasia, a seismic imaging of the manifold plumes and super-deep fluid processes of the East European Platform was carried out. As the source data, the time of the first wave of R wave entry according to the ISC bulletins from 1964 to 2006 was used. The fluid domain is defined as the region of distribution of low-speed inhomogeneities from the lower, middle mantle to the upper and spreading laterally in the upper end of its central part. The central, low-speed part of the fluid domain is defined as a plume. On the territory of the East European platform, the North-Azov, Volyn-Orsha, Moscow, Timan, Belomorsky, Varanger and Schelfteo plumes are highlighted. In the area of spreading the data of mantle domains there are 19 super-deep mantle fluids. By the nature of the behaviour of the gradient of velocity with depth, the main geodynamic boundary (the boundary between the upper and middle mantle) is constructed, which within the East European platform ranges from 525 to 700 km. According to the depths of the main geodynamic boundary, the East European platform is divided into Fennoscandia (575 km), Sarmatia (divided into two parts with depths of 575 km and 600—625 km) and Volga-Uralia (625 km). The main geodynamic boundary of the Barents Sea plate is divided into East and West (525—550 km). For the given main geodynamic boundary, the reduction of the gradient of speed (sharpness) from north to south from 0.734 s–1 in the mantle under the archipelago Medvezhy to the average is mostly £ 0.2 s–1 in the mantle North of 55° northern latitude.
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Bogatikov, O. A., Kovalenko, V. I., & Sharkov, E. V. (2010). Magmatism. Tectonics. Geodynamics of the Earth. Moscow: Nauka, 607 p. (in Russian).
Bullen, K. (1966). Introduction to theoretical seismology. Moscow: Mir, 460 p. (in Russian).
Garetskiy, R. G., & Karataev, G. I. (2014). Suture zones of Fennoscandia, Sarmatia and Volga-Uralia. Minsk: Belaruskaya Navuka, 120p. (in Russian).
Geyko, V. S. (1997). Taylor approximation of the wave equation and the eikonal equation in inverse seismic problems. Geofizicheskiy zhurnal, 19(3), 48—68 (in Russian).
Geyko, V. S., Tsvetkova, T. A., Shumlyanskaya, L. A., Bugaenko, I. V., & Zaets, L. N. (2005). Regional 3D P-velocity model of the Sarmatian mantle (south-west of the East European platform). Geofizicheskiy zhurnal, 27(6), 927—939 (in Russian).
Geyko, V. S., Shumlyanskaya, L. A., Bugaenko, I. V., Zaets, L. N., & Tsvetkova, T. A. (2006). Three-dimensional model of the upper mantle of Ukraine by the terms of P-waves arrival. Geofizicheskiy zhurnal, 28(1), 3—16 (in Russian).
Gufeld, I. L. (2007). Seismic process. Physical and chemical aspects. Scientific publication. Korolev: TSNIIMash, 160 p. (in Russian).
Grachev, A. F. (2000). Mantle plumes and problems of geodynamics. Fizika Zemli, (4), 3—37 (in Russian).
Dobretsov, N. L., Kirdyashkin, A. G., & Kirdyashkin, A. A. (2001). Deep geodynamics. Novosibirsk: Publishing house of the RAS “GEO”, 405 p. (in Russian).
Zharkov, V. N. (1983). The internal structure of the Earth and planets. Moscow: Nauka, 416 p. (in Russian).
Dobretsov, N. L. (2010). Global geodynamic evolution of the Earth and global geodynamic models. Geologiya i geofizika, 51(6), 761—784. doi: 10.1016/j.rgg.2010.05.002 (in Russian).
Kuzmin, M. I., & Yarmolyuk, V. V. (2014). Mantle plumes of Northeast Asia and their role in forming endogenous deposits. Geologiya i geofizika, 55(2), 153—184. doi: 10.1016/j.rgg.2014.01.002 (in Russian).
Lavrentyev, M. M., Romanov, V. G, & Shishatskiy, S. P. (1980). Some problems of mathematical physics and analysis. Moscow: Nauka, 286 p. (in Russian).
Orovetskiy, Yu. P. (2010). On the problem of genetic basis of the old East European platform. Geofizicheskiy zhurnal, 32(3), 106—111. http://doi.org/10.24028/gzh.0203-3100.v32i3.2010.117542 (in Russian).
Pavlenkova, N. I. (2001). The structure of the Earth’s crust and upper mantle and the mechanism of the movement of deep matter. Electronic scientific and information journal “Vestnik OGGGGN RAN”, (4) (in Russian).
Puzyrev, N. N. (1997). Methods and objects of seismic studies. Introduction to general seismology. Novosibirsk: Scientific Publishing Center of the United Institute of Geology, Geophysics and Mineralogy of the SB RAS, 301p. (in Russian).
Pushcharovsky, Yu. M., & Pushcharovsky, D. Yu., (2010). Geology of the Earth’s mantle. Moscow: Geos, 138 p. (in Russian).
Stolbov, N. M. (2011). Franz Josef Plume Development Model: The current state of earth sciences. Proceedings of the International conference dedicated to the memory of Viktor Efimovich Khain, Moscow, February 1—4, 2011 (pp. 1792—1795). Moscow: Geol. Faculty of Moscow State University (in Russian).
Tsvetkova, T. A., & Bugayenko, I. V. (2012). Seismotomography of the mantle under the East European Platform: mantle velocity boundaries. Geofizicheskiy zhurnal, 34(5), 161—172. https://doi.org/10.24028/gzh.0203-3100.v34i5.2012.116672 (in Russian).
Tsvetkova, T. A., & Bugaenko, I. V. (2016). The structure of velocity mantle number of horizons under Phennoscandia according to seismic-tomography data. Geofizicheskiy zhurnal, 38(1), 57—77. https://doi.org/10.24028/gzh.0203-3100.v38i1.2016.107723 (in Russian).
Tsvetkova, T. A., Bugaenko, I. V., & Zaets, L. N. (2017). Seismic visualization of plumes and super-deep fluids in mantle under Ukraine. Geofizicheskiy zhurnal, 39(4), 42—54. https://doi.org/10.24028/gzh.0203-3100.v39i4.2017.107506 (in Russian).
Tsvetkova, T. A., Bugaenko, I. V., & Zaets, L. N. (2016). Velocity divisibility of the mantle beneath the Ukrainian Shield. Geofizicheskiy zhurnal, 38(4), 75—87 (in Russian). http://doi.org/10.24028/gzh.0203-3100.v38i4.2016.107802.
Tsvetkova, T. A., Bugaenko, I. V., & Zaets, L. N. (2015). Structure of low-speed regions in the mantle of northern Europe. Trudy Karelskogo nauchnogo tsentra RAN, (7), 106—126 (in Russian). doi: 10.17076/geo157.
Tsvetkova, T. A., Shumlyanskaya, L. A., Bugaenko, I. V., & Zaets, L. N. (2009). Seismotomography of the East European Platform: a three-dimensional P-velocity model of the mantle under the mantle under Fennoscandia. Part I. Geofizicheskiy zhurnal, 31(1), 53—72 (in Russian).
Tsvetkova, T. A., Shumlyanskaya, L. A., Bugaenko, I. V., & Zaets, L. N. (2010à). Seismotomography of the East European platform: a three-dimensional P-velocity model of the mantle near Fennoscandia. Part II. Geofizicheskiy zhurnal, 32(1), 60—77. https://doi.org/10.24028/gzh.0203-3100.v32i1.2010.117570 (in Russian).
Tsvetkova, T. A., Shumlyanskaya, L. A., Bugaenko, I. V., & Zaets, L. N. (2010b). Seismotomography of the East European and Barents Pechora platforms: a three-dimensional P-velocity model of the mantle near the Volga-Uralia, the Caspian basin and the Barents-Pechora platform. Geofizicheskiy zhurnal, 32(5), 35—50. https://doi.org/10.24028/gzh.0203-3100.v32i5.2010.117505 (in Russian).
Sharov, N. V. (2017). Lithosphere of Northern Europe according to seismic data. Petrozavodsk: Edition of Karelian Research Center of RAS, 168 p. (in Russian).
Shestopalov, V. M., Lukin, A. E., Zgonnik, V. A., Makarenko, A. N., Larin, N. V., & Boguslavsky, A. S. (2018). Essays on Earth’s degassing. Kiev: Institute of Geological Sciences, NAS of Ukraine; Scientific-Ing. Center for Radio-Hydrogeoecological Ground Research of the NAS of Sciences of Ukraine, 632 p. (in Russian).
Shipilov, E. V. (2011). Geodynamics of superplume events in the evolution of the Arctic Ocean and its continental margins. Proceedings of the International conference dedicated to the memory of Viktor Efimovich Khain, Moscow, February 1—4, 2011 (pp. 2110—2113). Moscow: Geol. Faculty of Moscow State University (in Russian).
Filatova, N. I., & Khain, V. E. (2007). Tectonics of the eastern Arctic region. Geotektonika, 41(3), 3—29. (in Russian).
Furman, V. (2010). Heat transfer and heat diffusion in the plintic convective manthen plumes of the Earth. Visnyk Lvivskoho universytetu. Seriya heolohichna, (24), 35—49 (in Ukrainian).
Khain, V. E. (2001). Tectonics of continents and oceans. Moscow: Nauchnyy Mir, 604 p. (in Russian).
Khain, V. E., & Lomidze, M. G. (2005). Geotectonics with the Fundamental of Geoddynamics. Moscow: KDU, 560 p. (in Russian).
Bogdanova, S. V. (1993). The three-segment hypothesis for the East European Craton. Terra Nova, 5(Suppl 1), 313—314.
Geyko, V. S. (2004). A general theory of the seismic travel-time tomography. Геофиз. журн. 2004. Т. 26. № 2. C. 3—32.
Nataf, H.-C. (2000). Seismic imaging of mantle plumes. Annual Review of Earth and Planetary Sciences, 28, 391—417. https://doi.org/10.1146/annurev.earth.28.1.391.
Nolet, G., Karato, S.-T., & Montelli, R. (2006). Plume fluxes from seismic tomography. Earth and Planetary Science Letters, 248(3-4), 685—699. https://doi.org/10.1016/j.epsl.2006.06.011.
Shchipansky, A., & Bogdanova, S. V. (1996). The Sarmatian crustal segment: Precambrian correlation between the Voronezh Massif and the Ukrainian Shield across the Dniepr-Donets aulocogen. Tectonophysics, 268(1-4), 109—125. https://doi.org/10.1016/S0040-1951(96)00227-2.
Gorbatschev, R. & Bogdanova, S. (1993). Frontiers in the Baltic Shield. Precambrian Research, 64(1-4), 3—21. https://doi.org/10.1016/0301-9268(93)90066-B.
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