TECTONIC EVOLUTION AND BASIN FORMATION OF THE MESOZOIC AND CENOZOIC ON THE BOTH SIDES OF QINLING-DABIE OROGENIC BELT

Since the Indosinian epoch,under a condensing tectonic environment compressed from3 sides,the Chinese continent has experienced 4 stages of tectonic evolution:T₃—J₂,J₃—K₁,K₂—E,and E₃/N-Q,resultingin corresponding basin prototypes along both sides of the Qinling-Dabie orogenic belt.The 1ststageis characterised by compressional intracontinental foreland basin prototype,the 2nd by compressionalintracontinental foreland and strike-slip basin prototype,the 3rd by extentional rift-subsidence basin proto-type,and the 4th by down-warped basin prototype.