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ИНЖЕНЕРНАЯ ГЕОЛОГИЯ. ГИДРОГЕОЛОГИЯ. ГЕОКРИОЛОГИЯ

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Geoekologiya, 2020, Vol. 3, P. 36-44

COMPLEX GEOCRYOLOGICAL AND GEOPHYSICAL ANALYSIS
FOR THE STUDY OF PERMAFROST AND GAS HYDROGATES
ON THE ARCTIC SHELF OF RUSSIA

A. V. Koshurnikov#

Lomonosov Moscow State University, Leninskie Gory, 1, Moscow, 1119234 Russia
#E-mail: koshurnikov@msu-geophysics.ru

The active development of the Russian Arctic in the last 10 years requires relevant data on the bearing capacity of rocks on the Arctic shelf of the Russian Federation. To assess the bearing capacity of soils, knowledge on the distribution and state of permafrost on the Arctic shelf is needed. The paper discusses the rationale and possibilities of the proposed integrated geocryological and geophysical analysis including electrical explora­tion by sounding the formation of a field for studying permafrost on the shelf, electrical exploration by the method of shallow depth sounding for studying permafrost in the transit zone of the land-shelf, inversion of geophysical data, electrical resistance for laboratory testing of soil, drilling, modeling of heat fields, labora­tory testing of soils, and the thermometry for “stable” wells. The use of the developed research complex on the shelves of Pechora, Kara, Laptev and Chukchi seas provided us with new insights on the distribution, con­tinuity and condition of permafrost and the development of gas hydrates on the shelf of the Russian Arctic seas.

Keywords: geocryological and geophysical analysis, geoelectric model, heat model, Arctic shelf, permafrost, gas hydrates

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