Abstract
The paper presents the results of grain size analysis of bottom sediments and subsea permafrost from three cores drilled in Buor-Khaya Bay. A pronounced lithologic differentiation of the studied terrigenous deposits were revealed, as well as a wide variety of grain size and genetic types of deposits accumulated in various natural environments. The most of investigated sediments are represented by alluvial sands with wide range of size, pelletizing, and sorting rates. The accumulation of these sands was closely related to the dynamics of riverine flow, slope processes, and coastal erosion and abrasion. The fine sediment fraction is poorly sorted compared to sands. According to the dataset, the predominantly detrital nature of the sedimentary material and its continental origin have been established.
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