Ya Dong-Yangbajing Rift System Tectonic Landform Characteristics And Study On The Quaternary

The rigidity Indian plate continuously and strongly extrusion and collide the plastic collision Eurasian plate to make Tibet Plateau becoming the most activity and intense collision orogenic belt of the global crustal, and be obviously divided in the multiple different deformation characteristics tectonic deformation domain by many giant boundary faults in Quaternary Period, which near north-south distribution of Yadong-Yangbajing rift system where is in the Yadong-Gulu rift system is the longest. In order to prove that the near north-south distribution of Yadong-Yangbajing rift system due to the EW tension. is within Qinghai Tibet Plateau, something to pull Zhang’s results, which shows the north and south to the southern rift system is due to the extrusion subduction of the Indian plate in the Eurasian plate to a certain extent, within the plateau material occurred lateral movement.Firstly, by the Acrgis10.1 software extracting the mountain shadow intuitive–ly highlights the linear schlieren, and the terrain profile and geomorphic classification analysis, total interpretation of the eight roughly right order diagonal distribution of graben and half graben. From the south to the north are: parry the NNE trending half graben, located on the east side of the basin, the main boundary faults such as Nirvana; half graben, NNE trending boundary fault, the main is located in the east of the basin; long half graben, from south to north, the main boundary faults located on the east side of the basin, and the whole is convex to the west side of the "bow" shape.Secondly; half graben, nearly north-south, the main boundary is located in the West; sheep half graben, nearly north-south, the main boundary is located in the west of Jeddah; fruit graben, nearly north-south, located on both sides of the basin boundary fault; Damxung Yangbajain graben system, is the largest scale in the rift faulted basin, overall NE trending, contains a number of secondary right half graben stepping distribution, on the west side of the main boundary faults in the basin. Prove his thing in the macro landscape to pull a trend. Secondly through a lot of field level, fault slip vector measurement and statistical results show that Yadong-Yangbajing rift formation is something to pull a force results. So we can infer that north-south rift is due to the Tibet Plateau material to the things on both sides of the lateral flow pull a transport formation of and the development is likely to had with the central Tibetan Plateau block continued eastward extrusion are dynamically related to.Nearly NS trending rift with in the Tibet Plateau south is the most significant active tectonics and earthquake activity regions in the Tibet,Plateau south, to understand their geometry and motion characteristics is the important way of exploring within the extensional deformation mechanism of the plateau near EW, and contribute the understanding of plateau uplift mechanism problem.