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福建漳州盆地岱山岩—珩坑北西向断裂带第四纪活动特征
引用本文:黄卿团,汪一鹏,宋方敏,庄进耀.福建漳州盆地岱山岩—珩坑北西向断裂带第四纪活动特征[J].华南地震,2001,21(2):28-35.
作者姓名:黄卿团  汪一鹏  宋方敏  庄进耀
作者单位:1. 中国地震局厦门地震勘测研究中心,
2. 中国地震局地质研究所,
摘    要:通过对岱山岩-珩坑北西向断裂两侧第四纪地层的分布、构造地貌的发育等资料的分析,着重研究了该断裂带第四纪的活动特征,并探讨了活动断裂与地震活动的关系,研究结果表明:该断裂带是一条第四纪以来垂直正断兼具左旋水平走滑的活动断裂,在时间上断裂活动具有多期性;在空间上断裂活动具有迁移性;并在断裂的延伸方向存在差异活动而具有分段性,该断裂带第四纪以来宏观活动性和现今垂直形变活动性明显,1445年在该断裂最具活动的地段发生61/4级地震,表明该断裂现今仍在继续活动,今后仍有发生中强破坏性地震的可能。

关 键 词:第四纪活动特征  岱山岩断裂  福建  漳州盆地  地震活动  断裂构造
文章编号:1001-8662(2001)02-0028-08
修稿时间:2001年3月26日

Quaternary active feature of the north west fault zone at Daishanyan-Hengkeng in Zhangzhou basin,Fujian
HUANG Qing - tuan,WANG Yi - peng,SONG Fang - min,ZHUANG Jing - yao.Quaternary active feature of the north west fault zone at Daishanyan-Hengkeng in Zhangzhou basin,Fujian[J].South China Journal of Seismology,2001,21(2):28-35.
Authors:HUANG Qing - tuan  WANG Yi - peng  SONG Fang - min  ZHUANG Jing - yao
Abstract:By analyzing some data of the distribution of Quaternary stratum and the development of the structural physiognomy at both sides of the north west fault at Daishanyan - Hengkeng, we study Quaternary active feature of fault zone and discuss the relation of active feature and seismic activity. The results show as follows. 1 .The fault zone is active fault since Quaternary, and the fault is near vertical normal fault with left - strike slip. Its down side (west south plate) rises at a speed of 1.5mm/a, upper side drop at a speed of 0.4 - 0.6mm/a. Its speed of slip is 1.33 - 1.67mm/a. 2. It shows the characteristic of multi -period in time, migration in spatial and segment of activity along the fault. 3. Since Quaternary, the macroscopic activity and current vertical deformation are obvious. That an earthquake Ms6 (1/4) occurred at the best active section of the fault in 1445 indicates the fault is still active at present, and moderate earthquake will occur at this section.
Keywords:Quaternary active of feature  The fault of Daishanyan Zhangzhou  
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