The uplift history of Tibetan Plateau and oft-com:office:smarttags" />Himalaya is the key boundary condition in many Cenozoic geological events. On the basis of the studies in north-central Tibet, as well as the existing possible estimates, the authors provide a new model for the growth of Tibetan Plateau: Lhasa and Qiangtang terranes gained their elevations during Eocene time, whereas its northern area was still low and southern area was under sea level at that time. The Proto-Tibetan Plateau expanded throughout the Neogene toward its present southern and northern margins in the Himalaya and Qilian Mountains. oft-com:office:office" />