Twelve basement samples were collected from South Tibet Plateau for FTD and
Ar-Ar analysis to demonstrate their uplifting history since Cenozoic era.
The preliminary results from different minerals with different closure temp
eratures, including apatite and zircon for fission-track dating, and K-feld
spar, biotite for Ar-Ar dating, show that at least four stages of thermal h
istory can be recognized in the studied area.