68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference

SEISMIC STUDIES OF FROZEN GROUND IN RUSSIAN ARCTIC AREAS

Session: Geophysical Investigation in Cold Regions / Investigations géophysiques en milieu nordique

Marat Sadurtdinov, Earth Cryosphere Institute SB RAS (Russia)
Andrey Skvortsov, Earth Cryosphere Institute SB RAS (Russia)
Andrey Tsarev, Earth Cryosphere Institute SB RAS (Russia)
Maria Sudakova, Earth Cryosphere Institute SB RAS (Russia)

This report shows the results of a study of permafrost conditions in the coastal and nearshore areas of the Russian Arctic seas that was carried out through seismic methods. For this study, the researchers developed a new technique for using seismic methods on the floor or shallow waters, combining bottom and downhole surveys. In order to more reliably identify frozen state deposits, Poisson’s ratio was used as an added seismic criterion. The results obtained show that in seismic surveys on the sea bottom, SH-waves are preferable to P-waves.