[1]CHANG Zufeng,CHANG Hao,LI Jianlin,et al.The Characteristic of Active Normal Faulting of the Southern Segment of Weixi-Qiaohou Fault[J].Journal of Seismological Research,2016,39(04):579-586.
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The Characteristic of Active Normal Faulting of the Southern Segment of Weixi-Qiaohou Fault
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 04
Page number:
579-586
Column:
Public date:
2016-10-30
- Title:
- The Characteristic of Active Normal Faulting of the Southern Segment of Weixi-Qiaohou Fault
- Keywords:
- the southern segment of Weixi-Qiaohou Fault; Weishan basin; normal fault; late Pleistocene; vertical slip rate
- CLC:
- P315.2
- DOI:
- -
- Abstract:
- According to geological and geomorphic field observations,we mainly elaborate the active feature of the southern segment of Weixi-Qiaohou Fault.It is revealed that the fault is apparently active in Quaternary,behaving normal faulting primarily.The Weishan quaternary basin is apparently controlled by the fault,and the terraces in the basin have developed asymmetrically under its influence.It is documented that late Pleistocene accumulations with 14C age(1 5430±60)a B.P and OSL age(11.6±1.6)ka has been displaced by the fault,revealed by the exploratory trenches at Qingmenkou,Fotang and Xizaotang villages.Therefore,it suggests that the fault is newly active in late Pleistocene.The fault landform is clear at Xizaotang village,there is a 2 m high fault scarp on the T2 terrace of the Xihe river.It is estimated the fault has a average vertical slip rate of 0.18～0.32 mm/a since late Pleistocene,based on displaced magnitude of the river terraces and their ages formed.
- References:
- -
- Similar References:
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Last Update:
2016-10-30