关键词: 隐伏断层, 能动断层, 辽宁, 核电站场址

Abstract: The Donggang fault, located at Wentuozi town, Wafangdian city, Liaoning Province, is a hidden fault which is not far from the once chosen site of a nuclear power station. Through detailed field investigation, we have determined the location and geometry of the fault. It is found that the fault turns toward north when it extends eastward to Weitun. It does not link with the Jinzhou fault zone. By trench observations and dating of fault rocks and stratum samples, it is proved that the fault has dislocated the stratum of middle Pleistocene. However, the overlying stratum of the fault is not offset since about 50000 years. It is concluded that the Donggang fault is not a capable fault.

Key words: Hidden fault, Capable fault, Liaoning, Site of nuclear power station