ObjectivernMore and more evidence suggests that the Kwangsian orogen is probably an intraplate orogen,which is one of the few examples of intraplate orogenesis worldwide.However,the initiation time,size and scope of the Kwangsian orogeny have not been determined yet.This study analyzed the Silurian A-type granites in northeast Guangxi,South China Block,which may provide new evidence for the transition from compression to postorogenic extension of the Kwangsian orogen.