Destructional relief of the Gobi peneplain in South-Eastern Mongolia

Abstract

The paper contains an analysis of the Neogene-Quaternary relief modelled by the wind and water erosion and denudation at the margins of Dariganga volcanic area (SE Mongolia). The author obtained new data on the structure of denudational-deflational plains and various landforms developed on the surface of the Late Cretaceous-Paleogene Gobi peneplain (dry river valleys with hanging mouth, waterfalls and giant's kettles, large deflation hollows within the Miocene-Pliocene sedimentary basins, etc.). First established are evidences of paleo-seismic dislocations, such as longitudinal trenches in dry valley sides on grants, and «wild flysch» in rhythmically bedded sequences.