THE PROBLEM OF ICE COMPLEX DEPOSITS ORIGIN

Ice Complex is a widespread type of syncryogenic frozen deposits in the permafrost zone, represented mainly by silty deposits with ice wedges. There are three main groups of hypothesis about its origin - fluvial, aeolian (loessoids) and polygenetic. This abstract substantiates a new view on the Ice Complex, within which it is shown that the Ice Complex is a strata identified according to cryogenetic criteria, and not geological-genetic ones. Therefore, it makes no sense to talk about a single genesis of the sediments that make up the Ice Complex. Cryolithological and geomorphological features indicate that the main geological processes of sedimentation were lacustrine-alluvial and deluvial-solifluction, and also, probably, aeolian. However, the specifics of syncryogenesis largely neutralized the genetic characteristics of sediments (composition, lamination), and partially changed the conditions of their occurrence in intrapolygonal lakes, including due to heaving during segregated ice release and cryopedogenesis. As a result, the sedimentological features of the genesis of sediments were largely destroyed and now a search for new criteria for establishing the geological genesis of sediments is required.