The outcrop in Feidong Taoyuan， Anhui Province， shows a migmatitic complex belt. The estimated P-T conditions shows the deformation and metamorphic environment is like that in the mid-lower crust. We calculated the strain strength， strain rate， vorticity， stress field of the ductile shear belt， and results indicate that the stress direction is about 170°， 40°～50° to the strike direction of the shear belt； simple shear takes advantage in the deformation of it and the deformation mineral is stretched. The felsic mylonite fluid, pegmatitie fluid all deformed during different periods of the shearing. Based on our former work results， we analysis three different fluids on their structural relationships and the timing they deformed， with which we calculated that Taoyuan ductile shear belt sheared during 140～124 Ma. Furthermore， synthesizing the relevant chronology data along the Tanlu fault belt， it’s easy to find that the Feidong segment just record shearing during Early Cretaceous， while synorogenic ages can just be found on the edges of Dabie and Sulu orogenic belts. These demonstrate the spacial difference of chronology distribution in Tanlu fault belt.
Wang Wei,Song Chuanzhong,Li Jiahao et al. Structural and geochronology characteristics of Taoyuan ductile shear zone in Tanlu fault belt and their significance[J]. Chinese Journal of Geology, 2016, 51(4): 1040-1058.