Mineralogical Characteristics of Garnet in Garnet Mica Schist and Its Tectonic Significance in the Tongbai Section of the Shangdan Fault Zone
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53513#.VMcrZSzQrzE Author(s) Shenglian Ren * , Chuanzhong Song , Jiahao Li Affiliation(s) School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, China . ABSTRACT Studies on the metamorphism and deformation conditions of rocks in the suture zone are good ways to discuss the orogenic process and mechanism. The microstructure and ultramicrostructure features of minerals are true embodiment of formation environment of the orogenic belt. Based on the study of microstructure, ultramicrostructure deformation characteristic and compositional zonation of garnets in garnets-mica schists in the Tongbai mountain, east section of the Shangdan fault zone, the results show that the three types of garnets have suffered various states of plastic deformation. The dynamic recrystallization of garnets is due to the subgrain gro...