PLATE BOUNDARIES IN THE FAR EAST REGION OF RUSSIA ( from GPS measurement, seismic-prospecting, and seismological data )
V.Yu. Timofeeva, D.G. Ardyukova, V.M. Solov'evb, S.V. Shibaevc, A.F. Petrovc, P.Yu. Gornovd, N.V. Shestakove,f, E.V. Boikoa, and A.V. Timofeeva
aA.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
bGeophysical Survey, Siberian Branch of Russian Academy of Sciences, pr. Koptyuga 3, Novosibirsk, 630090, Russia
cYakutian Department of the SB RAS Geophysical Survey, pr. Lenina 39, Yakutsk, 677980, Russia
dYu.A. Kosygin Institute of Tectonics and Geophysics, Far Eastern Branch of Russian Academy of Sciences, ul. Kim Yu Chena 65, Khabarovsk, 680000, Russia
eFar Eastern Federal University, ul. Sukhanova 8, Vladivostok, 690950, Russia
fInstitute of Applied Mathematics, Far Eastern Branch of Russian Academy of Sciences, ul. Radio 7, Vladivostok, 690041, Russia
Keywords: Tectonic plates; plate boundaries; space geodesy method; seismological and seismic methods for investigating the deep structure of the Earth's crust
Pages: 376-391
Abstract
The recent geodynamics of the Far East region of Russia is considered, where three large tectonic plates converge - Eurasian, North American, and Pacific, as well as several microplates-Okhotsk, Bering, and Amurian - have been hypothesized to exist. The available data on the position of the plate boundaries, the relative plate rotation poles, and the regional seismicity were analyzed, and parameters of plate motion models for northeastern Russia were determined in this study. The regional deep structure was investigated, using data obtained by different geophysical methods. The results of observations of the Magadan-Vrangel Island profile by deep seismic sounding (DSS), common-depth point (CDP) method, and correlation refraction method (CRM) are presented.
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