DEEP STRUCTURE OF THE ZABAIKALSKY PORTION OF THE CENTRAL-ASIAN FOLDED BELT FROM DEEP SEISMIC SOUNDING (1-SB SURVEY BASE LINE)

V. M. Solovyev 1, V. S. Seleznev 2, A. S. Salnikov 3, A. V. Liseykin 4, I. E. Romanenko 1, S. A. Elagin 1, A. E. Shenmayer 1, N. A. Serezhnikov 1

1 Altai-Sayan Branch of Geophysical Service of RAS Federal Research Centre, Novosibirsk, Russia; 2 Geophysical Service of RAS Federal Research Centre, Novosibirsk, Russia; 3 Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia; 4 Seismological Branch of Geophysical Service of RAS Federal Research Centre, Novosibirsk, Russia

The paper contains materials of deep seismic survey along 1-SB Survey Base Line in the Trans-Baikal region. Р- and S-waves, registered from key reflectors in the Earth’s crust and the Moho surface, were induced by explosions and high-energy vibration sources. High P-wave velocities along the Moho surface at shallow crust were recorded, as well as a highly irregular upper crust as from Р- and S-wave data. The Earth’s crust anisotropy was identified by heteropolarised SV- and SH-waves from the reflectors in the Earth’s crust and the Moho surface.

Keywords: deep seismic sounding section, P- and S-waves, velocities of Р- and S-waves, deep seismic section, the Earth’s crust anisotropy.

DOI 10.20403/2078-0575-2017-4-91-103

Download PDF