Abstract:The Tancheng—Lujiang fault belt(namely Tan—Lu Fault), which starts from Guangji, Anhui in the south and extends northerly into the territory of USSR with a length of 3500km and a width of tens to 200 km, is a complex NNE — trending fault belt deeply cut through the mantle in the fringe of the China continent.This is a great strike—slip fault formed at the end of Triassic as a result of jointly action of a compressional stress in NS-direction, which was caused by the collision of the North-and South China Bl...