Morphodynamic types and evolution of river mouths at Patomskoye upland during Pleistocene

Abstract

Morphodymanic types of mountain and semi-mountain river channels, depend on complex of geologic-geomorphologic factors. The stability of the latter during several Pleistocene erosion cycles in those parts of river valleys, which have not undergone restructuring, has led to strong inheritance in the development of morphodynamic types of channels. The stability of tributary mouth zones and their evolution are controlled by morphodynamic type and lateral deformations of main river channel. The evolution of tributary mouths and their vicinity effects the morphology of the main river and confluence points.