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UDC (550.834+550.3):551.243(571.56)
HEAD WAVE TIME SECTIONS OF THE UPPER EARTH’S CRUST ALONG THE SURVEY BASE LINE 3-DV (NORTHEASTERN BLOCK)
P. O. Polyansky, A. S. Salnikov, A. F. Emanov, V. V. Zhabin
The data on the northeastern block of the survey base line 3-DV were processed applying head wave conversion algorithm. The depth range with refractors therein is 0.6-1.7 km. The boundary velocity of head P-waves varies within 5.1 km/s and 7.1 km/s along the line. The boundary velocity of head S-waves is 2.7 km/s to 4 km/s. The paper contains analysis of lateral distribution of the Poisson ratio. The Inyali-Debin megasynclinorium area is characterized by increased Poisson ratios (0.28-0.37) compared to the Ayan-Yuryakh anticlinorium (0.19–0.29) and Orotukan-Balygychan uplift (0.22–0.28) areas.
Key words: geophysical survey base line 3-DV, CDP seismic survey, head waves, Wiener filter.
DOI 10.20403/2078-0575-2016-2-86-95
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