Comparison of Eastern and Western Boundary Faults of Eastern Himalayan Syntaxis,and Its Tectonic Evolution
Dong Hanwen
Xu Zhiqin
Cao Hui
Li Yuan
Liu Zhao
Li Huaqi
Yi Zhiyu
Chen Xijie
Ma Xuxuan
Wu Chan
Abstract：It is important to clarify the relationship between the eastern and western boundary faults of the eastern Himalayan syntaxis(EHS),and tectonic evolution of the eastern Himalayan syntaxis(EHS)since the collision of the Indian and Eurasian plates.Combined with field mapping,structure observations,zircon U-Pb geochronological investigations and previous studies of the EHS,this study identifies and describes the architecture and kinematics of the two boundary faults,discusses their multi-stage of deformation,also the evolution of the study area since the collision of Indian and Eurasian plates.The results show that the two boundary shear zones are similar in architecture and kinematics,and their tectonic deformation is obviously contemporaneous and in same stage,having experienced a series of important geological events,including the collision,subduc-tion-exhumation and collapse-uplift.
Keywords：eastern Himalayan syntaxisboundary faultzircon LA-ICP-MS U-Pb datingtectonics
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：19( 933-951 )