中国东北-华北中生代盆地结构构造

STRUCTURE AND TECTONICS OF MESOZOIC BASINS IN NORTH AND NE CHINA

中国东北－华北中生代有六个成盆期。早－中三叠世、晚三叠世、早－中侏罗世受南北向挤压作用控制；晚侏罗世－早白垩世早期东北和渤海地区仍以南北向挤压为主，南华北盆地的形成和秦岭－大别造山带向南的推覆有关；早白垩世晚期－晚白垩世早期东北发生热沉降，渤海湾和南华北发生裂陷作用，晚白垩世末期松辽盆地西北缘发育压陷盆地。东北－华北中生代共发生６期正反转，中侏罗世以前盆地反转是南北向，其后为北西一南东向压扭。

There were 6 formation episodes of basins in Mesozoic in North and Northeast of China, e. g. early-mid- dle Triassic epoch, late Triassic epoch, early-middle Jurassic epochs, which were controlled by NS compression. Late Jurassic-early Cretaceous Northeast of China and Bobai area were controlled by compression with N-S direction. The formation of southern Huabei was related with Qinlin--Dabie mountain belt napping southwards. Later during late of early Cretaceous to early of later Cretaceous, Songliao Basin occurred thermal subsidence, south Huabei and Bohai Bay took place rifting. The last one was in late Cretaceous, 6 phases of inversion happened, those which happened before the end of Middle Jurassic epoch were caused by NS compression, the others were NW-SE compression