Abstract
This paper deals with the distribution of various geological structures of the Komandorsky deep basin of the Bering Sea. The data allow the supposition that it was formed as a result of spreading during late Cretaceous and Tertiary periods. The Shirshov Ridge framing the Komandorsky deep basin in the west is heterogenous. It is a Late Cretaceous island arc in the west and a Tertiary zone of tectonic convergence in the east. Processes of the Quaternary tectonic activity within the Komandorsky Basin are emphasized.
