Structure and age of river valleys at the southern Transuralian region

Abstract

New geological data reveal complicated structure of alluvium buried under small and medium valleys floor at the south of the Transuralian region. Most deeply buried and thickest alluvium is not younger than Pliocene. Recent valley pattern inherits the ancient one, the drainage network of the region being thus of the Pliocene age. Stratigraphic position of the ancient alluvium and its conservation are characterized in connection with the valleys size and morphostructural frame. The data essentially contribute to the knowledge of the structure and age of the southern Transuralian region valleys network as well as provide the ground for alluvial mineral deposits search.