FORMATION AND DEVELOPMENT OF THE LOWER CRETACEOUS AND MIDDLE PALEOGENE RIVER VALLEYS WITHIN THE CENTRAL PART OF THE UKRAINIAN SHIELD

The paleogeographic terms of becoming and development of Lower Cretaceous and lover Paleogene of river valleys are considered within the limits of central part of the Ukrainian shield. That the evolution of the Lower Cretaceous and lover Paleogene river valleys occurred in close spatial and paragenetic relations both with the ore-bearing weathering crusts crystalline basement rocks and to each other, which shows: in the spatial arrangement of the river valleys, their configuration and structure; facies depositional environment; material composition, minerals and their spatial distribution