The deep internal dynamical processes and new model of continental-continental collision in Himalayan collision orogenic zone

Qinghai-Xizang plateau lefting and the physical and dynamical mechanism of shortening and thickening are resulted from matter and energy exchanging, a s well as matter movement and couple. To study Himalayan orogens which lie on the front of collision region of India and Eurasian plate is key for und erstanding the deep internal dynamical processes. In this paper, according to the data from 3D velocity structure of Rayleigh wave deep seismic soundi ng, the geophysical field and the deep structure on two blanks of Yalung Za ngbo river have obvious difference, and there is a special deep internal dy namical processes. Accordingly, and new model of two layer "wedge plates" i s put forward, that is, crust and uppermantle matter of India plate move to ward south and are blocked by various tectonic bodies, finally stopped on d ifferent place and depth At the same time, under two-way compresive action of North and south a complicate tectonic pattern of up-to-data Himalayan or ogens and Qinghai-Xizang plateau lefting is formed.