摘要
本文根据断裂在伸展变形中的功能，将渭北地区新生代伸展构造系划分为伸展断层组、传递断层组和滑脱断层组三类加以叙述。确认大部分伸展断层都是负反转构造，主干断裂面多呈犁式形态。最后讨论了构造系的伸展模式和动力学演化。
In this paper,the extensional tectonic system during Cenozoic era in Weibei is described in details It is divided into three groups i e ,the extensional,the transferring and the decollement faults based on the effects of the normal faults in the structure deforming Most of the extensional faults,which are characterized by the listric types,are reverse inverted structure Finally,the model of the extensional tectonic system and that of the dynamic evolution are discussed
关键词
渭北地区
新生代
伸展构造系
伸展模式
动力学
Weibei region,Model of extensional system,Reverse inverted structure,Model of extensional tectonics,Dynamic evolution
