Landscape evolution and precipitation changes in the Badain Jaran Desert during the last 30 000 years

摘要

On the basis of field expeditions into different parts of the Badain Jaran Desert, new evidence of landscape evolution and precipitation changes during the last 30 000 years has been found from the geomorphological, sedimentological and geochronological studies of the megadune. Different cemented surfaces of palaeo-dunes have been observed in many localities, which are Representatives of relatively moister environment.