LI Jiaying ),ZHENG Mianping ),WEI Lejun ) ) Institute of Geology, Chinese Academy of Geological Sciences, Beijing,) Institute of Mineral Resources, Chinese Academy of Geological Sciences Open Laboratory of Saline Lake Resources & Environment,.2005. The Study on the Diatoms of the Palaeolake Sediments and Its Palaeoenvironments in Dahyab Tso (Taicuo) Lake, Xizang (Tibet)[J]. Acta Geologica Sinica,79(3):295-302