Abstract:Wutuo area in east Kunlun area goes across north Kunlun arc basin system and southeast Kunlun magmatic arc subduction accretionary complex in east Kunlun. In this paper, different developing stages, fractures in different levels, ductile shear zones and folds have been studied. Inference from local feature to the overall characteristics has been carried out. Tectonic evolution and metamorphic deformation research have been recognized again. Combining with the sedimentary formation, magmatic activity and metamorphism, isotope age values and regional data, relative age formed in different tectonic community has been determined, and the tectonic deformation sequence of the study area has been reasonably established. During Lvliang Yanshan Himalayan tectonic period, this area has experienced at least seven periods and twelve generations deformation. Tectonic regime change in any period, change of orogenic types and transformation of basin types all follow the extension and compression alternate evolution of this general crust. The tectonic evolution of the eastern Kunlun orogenic belt is divided into Paleoproterozoic basement, multicycle ocean continent conversion stage, the intracontinental orogenic stage and the plateau uplift stage.
