Analysis of Neotectonics Movement Characters in the Source Region of the Yangtze River

Based on numerous actual data collected from long-time field investigation in source region of the Yangtze River and refering to the former research achievement,we analyzed the neotectonics movement characters in source region of the Yangtze River using the structural analysis.The results show that the tectonic motion has been very intensive in source region of the Yangtze River since the Quaternary period. Except for the vertical movement with integrity,differences,and periodical uplift,the Neotectonics Movement also shows a horizontal movement which experienced a period like Crustal shortening-nappe fold and fracture-block sliding.The whole tectonic movements shows both the successive revival and a certain reconstruction and regeneration.Overall,the Neotectonics Movement shaped the landform and Drainage pattern of source region of the Yangtze River.