阿尔金南缘断裂安南坝段滑动量的初步研究

ON THE DISPLACEMENT ALONG THE SOUTH ALTUN FAULT AT THE ANNANBA BASIN

摘要:

结合航、卫片解译,对阿尔金南缘断裂东端附近的安南坝段的断裂滑动量进行了野外调查.结果显示,在安南坝盆地南缘,冲沟的阶地位错量分别为T₁=2.5 m,T₂=23 m,T₃=48 m,T₄=96 m,T₅=185 m.最大走滑量可达3 500 m,估计平均水平滑动速率约为3 mm/a.

Abstract:

The displacement along the south Altun fault in the Annanba basin was investigated.The result reveals that the offsets of terrances T₁,T₂,T₃,T₄ and T₅ are 2.5 m,23 m,48 m,96 m and 185 m respectively.The biggest offset is determined to be 3500 m,which suggests a slip rate of about 3 mm/a.