Spatiotemporal Evolution of Central Qilian Shan (Northwest China) Constrained by Fission-Track Ages of Detrital Grains from the Huangshui River

The emergence of the Tibetan Plateau is one most significant geological events in East Asia. Central Qilian Shan connects North and South northeastern part Plateau. However, exhumation history Block from Mesozoic to Cenozoic remains unclear. Determining cooling ages detrital zircon apatite modern river sediments an ideal method for tracing evolutionary processes orogenic belts. In this study, we present first single-grain (153) fission-track (108) data Huangshui River Shan. decomposition dataset revealed major age peaks at ca. 145–93, 11 Ma. entered intracontinental orogeny stage dating back Cretaceous (ca. 145–93 Ma) Late caused by subduction Neo-Tethys Indian–Asian collision. Therefore, propose that geomorphic framework margin was initially established during further consolidated Miocene.