저자(한글) |
ZHOU, Bin,DENG, Zhihui,CHAO, Hongtai,XU, Huaming,YANG, Zhuzhuan,Xiao, Lanxi,WANG, Zhicai,ZHANG, Yongxiang |
초록 |
Yingwei fauh zone is the northern segment of famous Tanlu great fault system loeatied in Bohai sea area. Owing to be influenced by some early faults in NW direction, Yingwei fault zone can be divided into three segments which have apparently- strike-slipping tectonic characteristics and different accompanying tectonics. Typical strike-slip fault properties are presented in deep structure of Yingwei fault, where it cut deep into Moho and even the whole lithosphere, and become the surging passages for hot materials or basaltic materials from the mantle. By synthetically analyzing the structural evolution of regional plate tectonics, development of sediment basins and characteristics of magmatie activities, the evolution history of Yingwei fault is divided into three periods: the left-lateral strike-slipping period from late Jurassic to early Cretaceous (J_3 - K_1 ), extensional period from late Cretaceous to early Eocene ( K_2 - E_2 ), and right- lateral strike-slipping period from Oligoeene to now ( E_3 - Q ) , and the dynamic mechanism for each period are discussed also. |