Geodynamic Causes of the Emergence and Termination of Cenozoic Shear Deformations in the Khatanga-Lomonosov Fault Zone (Arctic)

In the context of models of mantle circulation beneath the continent, coupled with the subduction of the oceanic lithosphere, a direct link between the kinematics of plate tectonics in the Northwest Pacific Ocean and geodynamic evolution of the Arctic and northeastern Asia in the upper Cretaceous and Cenozoic is revealed. A simple geodynamic explanation is given for the emergence and subsequent termination of Cenozoic shear deformations in the Khatanga-Lomonosov fault zone, which is an important argument favoring the idea of the Lomonosov Ridge as a natural extension of the Eurasian margin to the Arctic (Amerazian) basin.