Discovery of large-scale Silurian ancient delta deposition system in Longmu Co area, Qinghai-Tibet Plateau, China and its significance

The karyotype,pollen morphology,stoma traits of epidermis,and exterior appearance of Christolea crassifolia in three different populations of the Parmirs have been investigated completely by the principles and methods of populations in this paper.

It is a key problem when the Longmu Co-Shuanghu suture zone transferred from collision to basin sediment because of no sedimentary cover on the suture being reported in northern Qinghai-Tibet plateau.