Rheologies of crustal rocks and minerals are mainly controlled by tempe- rature and their composition. Since rheology reflects strain velocity of an object, the study is closely related to deformation. Under the high temperature condition of lower crust, rheologies of different rocks and minerals obviously increase in contrast to their viscosities and relative viscosities. So, the lower crust as a whole flows easily, distributes strain homogeneously, and is deformed penetratively. Nevertheless, rheology increases in order of schist