On the origin of the valleys' dilatations in the semi-mountains rivers of the Patom highland

Abstract

Data of exploratory drilling were used to reconstruct paleo-channels of the rivers at Patomskoye highland. The dilatations of valleys appear to be the result of river evolution and channel activity during several erosion cycles. Their genesis is passing due to several causes and is connected with channel stability, its lateral deformations, and evolution during the whole history of the valley.