The Evolution of the Quaternary Salt Lakes in the Qaidam Basin  

作　　者：Wei Xinjun and Jiang Jixue Qinghai Research Institute of Salt Lake Exploration and Exploitation, Golmud, Q inghai 

出　　处：《Acta Geologica Sinica(English Edition)》1994年第1期71-82,共12页地质学报（英文版）

摘　　要：The paper discusses the distribution of Quaternary sediments, occurrence of saline minerals and phases of neotectonic movements and their manifestations in the Qaidam basin. The formation of four successive lacustrine terraces in Tertiary anticlinal zones in the western part of the basin was related to the neotectonic movements that took place 100 Ka ago, and the distribution of such terraces discloses, in a way. the evolutionary history of the Quaternary salt lakes. According to the distribution of the terraces coupled with the distribution of Quaternary sediments and features of salt deposition, four periods of Quaternary salt lake evolution in the basin may be distinguished, which correspond to four stages of salt deposition respectively.The paper discusses the distribution of Quaternary sediments, occurrence of saline minerals and phases of neotectonic movements and their manifestations in the Qaidam basin. The formation of four successive lacustrine terraces in Tertiary anticlinal zones in the western part of the basin was related to the neotectonic movements that took place 100 Ka ago, and the distribution of such terraces discloses, in a way. the evolutionary history of the Quaternary salt lakes. According to the distribution of the terraces coupled with the distribution of Quaternary sediments and features of salt deposition, four periods of Quaternary salt lake evolution in the basin may be distinguished, which correspond to four stages of salt deposition respectively.

关 键 词：neotectonic movement lacustrine terrace salt lake evolution dismembering of the ancient lake 

分 类 号：P544.4[天文地球—构造地质学]