Paleo-tectonogeomorphology during Late Cretaceous to Early Cenozoic in Liupanshan Area

The tectonogeomorphology of the area pre-dating the Indian-Eurasian collision in west China draws dramatic attentions of geologists,the understanding of former tectonogeomorphology will help us to rule out the previous tectonic events from the collision.We select the sediments at the bottom of Cenozoic sequences in Sikouzi section,which were revealed in the east of Liupanshan situated in the northeast of the Tibetan Plateau,to reveal the pre-dating tectonogeomorphology of Liupan Shan.Based on detailed sedimentologic and paleocurrent studies,we suggest that a geomorphologic relief existed in Liupanshan during late Cretaceous to early Cenozoic,which possibly resulted from the far-field effects of the assembly of Kohistan-Dras Arc and Gondwana fragments to Eurasian continent.