Abstract:This article gives a detailed discussion on the extension of the fault zone along the north fringe of Aerjinshan and its basic features,horizon-tal slide,the attribution of the fault zone as well as its relation to earth-quake activities.The authors indicate that fhe fault zone along the nor-th fringe of Aerjinshan has a long active history,that it has a hori-zontal slide feature whirling about to the left,and that it is a deeper and bigger fault zone cutting crust.The fault zone do not turn at to the southeast after crossing Daba,but it goes on lengthening towords the east till Kuantanshan mountain region,inserts into the Jinta basin and disappears.The fault zone is a transform fault with the maxium distance of horizontal slide to the left up to 120 kilometres.Therefore the active strength is not great since Holocene epoch,and it is a characteristic cre-ep.And the frequency of earthquake activity of the fault zone is vather low.It is only possible for middle-strong earthquakes to take place.
