Abstract
Based on the interpretation of geophysical and geological data, the authors compiled the Map of cryogenic geodynamics of the shelf of the Barents and Kara Seas, where six basic types of the structure of the cryolithozone section were identified. The relationship between the dynamics of the cryolithozone and the geomorphological, lithological, and geothermal characteristics of the shelf of the Barents and Kara seas is analyzed. Based on the results of this analysis, conclusions have been drawn on the relationship between the current state of the layer of permafrost and multiyear-cooled rocks with the depth of their bedding, thickness, surface temperature, type and lithological composition of the deposits of the cryolithozone itself and its enclosing rocks. Steady correspondence of the stable state of the frozen zone to the fl at elevated areas of the relief (plateau) was revealed, and unstable to the lowered relief areas (syneclises and gullies). The results of the analysis make it possible to predict the degree and position in the section of defrosting of cryolithozone in different parts of the study area.
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