Journal
CHINESE SCIENCE BULLETIN
Volume 52, Issue 8, Pages 1089-1100Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-007-0164-6
Keywords
ductile shear zone; zircon SHRIMP U-Pb dating; Karakorum Fault; Tibetan Plateau
Categories
Ask authors/readers for more resources
The Karakorum Fault zone (KFZ) plays an important role in understanding the formation, evolvement and deformation of the Tibetan Plateau. The high-Tdextral shearing metamorphic rocks, e.g., mylonites or mylonitized gneisses-granites, locally crop out along the southeastern part of the KFZ in the Ayila Ri'gyu Range area. The SHRIMP U-Pb dating of the syn-kinematic crystallized zircons indicates that the initial age of the KFZ is similar to 27 Ma, similar to 10 Ma older than previous results. The extensive high-T dextral shearing along the KFZ started at least at 27-20 Ma, accompanied by the syn-kinematic emplacement of leuco-granites. Deformation and concomitant fluid circulation during shearing most likely occurred as early as at 25-13 Ma. The KFZ probably grew from southeast to northwest along the fault as a result of continuous convergence between the India plate and Eurasia plate.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available