The Quaternary Pan-lake (Overflow) Period and Paleoclimate on the Qinghai-Tibet Plateau ZHENG Miaping, YUAN Heran, ZHAO Xitao and LIU Xifang (1. R & D Center for SalineLake and Epithermal Deposit, Chinese Academy of Geological Sciences, Beijing 100037; 2. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037; 3. Open Laboratory of Saline Lake Resources and Environment, Chinese Academy of Geological Sciences, Beijing 100037) Lake geomorpho…