Earth’s Cryosphere, 2011, Vol. XV, No. 1, p. 15-22
DISTRIBUTION OF PERMAFROST IN CHUISKAYA BASIN (GORNY ALTAI) ACCORDING TO TRANSIENT ELECTROMAGNETIC SOUNDINGS DATA
V.V. Olenchenko, N.O. Kozhevnikov, E.Yu. Antonov, E.V. Pospeeva, V.V. Potapov, A.N. Shein, S.M. Stefanenko
Institute of Petroleum Geology and Geophysics, SB RAS, 630090, Novosibirsk, prosp. Acad. Koptyuga, 3, Russia, OlenchenkoVV@ipgg.nsc.ru
The results of electromagnetic soundings in the area of permafrost in Chuiskaya basin (Gorny Altai) are presented and discussed in this article. A sharp decrease in permafrost has been revealed based on the comparison of data of geophysical researches in 2009 with the results of drilling during 1970th. This decrease had occurred presumably due to the formation of the taliks of hydrogeogenic type. Features of disturbance of altitudinal zonality in the permafrost structure have been determined.
Key words: Gorny Altai, permafrost, electromagnetic sounding.