Ancient valleys of the Barents and Kara seas shelf

Abstract

Evolution of ancient rivers on the Barents and Kara Seas Shelf through the Late Cenozoic is considered. Erosional origin of numerous valleys remaining in the recent and ancient relief has been proved. Shapes, cross-sections and distribution of river valleys were investigated. Seismic acoustic data were interpreted and map of ancient river valleys existed on the Barents and Kara Seas Shelf during Late Cenozoic regressions has been compiled. Maximum of neotectonic uplift and major regression was shown to occur during Late Miocene.