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采用宏观、微观相结合的方法 ,对阿尔金断裂东段断层滑动方式进行研究 ,结果表明 :(1)阿尔金断裂东段由多条羽列状次级断层所组成 ,相邻两次级断层间的夹角 :A段 <15°,B段 <12°,C段 <5°;(2 )断层物质具明显的组构现象 ,眼球状流动构造 ,较小的剪切破裂角等是阿尔金断裂东段断层蠕动的结果 ;(3)断层泥石英碎砾 SEM特征显示阿尔金断裂东段 Q3以来主要是蠕滑 ,但不同区段稍有不同。综上所述 ,阿尔金断裂东段断层活动主要是蠕滑 ,愈向东其蠕滑程度愈高。
The results show that: (1) The east section of the Altyn Tagh fault consists of a number of feather-like secondary faults, with adjacent two sub-faults Between the angle: A section <15 °, B section <12 °, C section <5 °; (2) the fault material with a clear structure, the eyeball flow structure, a small shear cracking angle, The results of fault creep in the eastern segment of the gold fault; (3) The SEM features of the gravel in the fault mudstone show that the Q4 of the eastern part of the Altyn Tagh fault is mainly creep but slightly different in different segments. In summary, the fault activity in the eastern section of the Altyn Tagh fault is mainly creep, and the higher the extent of creep slip to the east,