Keywords Origin;Microstructure;Geochemistry;Chronology;Formation depth;Exhumation rate;Frictional experiment;Pseudotachylite;the eastern Dabieshan orogenic belt;

• 大别山东部;假玄武玻璃;成因;显微构造及地球化学;年代学与形成深度及折返速率;摩擦熔融实验;