Causes and mechanisms of the modification of the fluvial drainage basins

The relationship between the tectonic structure of the Ai–Ufa interfluve (Southern Urals), its morphology, the recent deformations, and the distribution of clastic material in the fluvial basins were studied. Geological interpretations are suggested for the problematic local areas of the drainage basins, whose structure and evolution are distinct from the model scenarios. The sedimentary regime of the river valleys is controlled, first of all, by their configuration and orientation of the valley segments relative to the tectonic zones, as well as by the amount of clastic material that is delivered by tributaries, the climate history of the fluvial basin, and its recent tectonic activity.