Abstract

AbstractOn the basis of a map of morphogenetic coastal types, the features of the distribution of coastal types on the sea and ocean sides of the island arc systems were digitized and considered, which became the starting point for the actualization of the problem of the developmental features of the coastlines of linear contact zones dividing sea basins, as well as seas and oceans. The geomorphologic and morphodynamic differences between the sea and ocean coasts of the island arc systems and Sakhalin Island, the eastern shores of which have a subarctic appearance, and the western shores are washed by the temperate sea, are shown. The specificity of the coastal morpholithogenesis of the ocean and seas of the subarctic and temperate zones made it possible to formulate the coastal concept of the contact zones of the North Pacific.KeywordsContact areas of the seasKuril IslandsAleutian IslandsSakhalin IslandCoastal morphodynamics

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