The record of younger drays event in eolian sand deposit in Qaidam basin

摘要

The Qaidam Basin is one of the main areas where the desert of the Qinghai-Xizang Plateau is distributed. According to the environment records and the age of stratigraphy in Xiaxitai section in southeast part of Qaidam Basin, This paper reached the following conclusions: the desert development, formation of the cold-dry climate, evolution of natu- Ral environment and their reverse changes occurred frequently since the late glacial. In eolian sand deposits, the Younger Dryas event clearly appeared, which manifesed a dry-clod climatic period.