| 福建晋江下游北西向断裂带活动性研究 |
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| 引用本文： | 黄卿团,庄进耀,谢志招,张清香,姚道平,郑韶鹏,方韡.福建晋江下游北西向断裂带活动性研究[J].震灾防御技术,2008,3(3):302-310. |
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| 作者姓名： | 黄卿团 庄进耀 谢志招 张清香 姚道平 郑韶鹏 方韡 |
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| 作者单位： | 厦门地震勘测研究中心,厦门,361021 |
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| 摘 要： | 本文以丰富和翔实的地质、地貌、年代测定、地球物理、地震等资料，阐述了晋江下游北西向断裂带的几何特征，分析了断裂带晚更新世以来的活动性，并探讨了断裂活动与地震的关系。结果表明：（1）晋江下游北西向断裂带从南安仑苍到晋江河口形迹清晰，断裂规模自西北向东南不断增大；（2）晋江下游北西向断裂带晚更新世以来，不同段落的活动性亦表现出自西北向东南不断增强和变新的特点，南安仑苍一丰州段为早第四纪断裂，丰州一晋江河口段发育有晚更新世断裂；（3）沿晋江下游北西向断裂带，在其与北东向断裂交汇部位附近，历史上曾发生过6次中强地震，地震有自西北向东南频度升高和强度增大的趋势。
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| 关 键 词： | 晋江下游 断裂活动 地震 |
| 收稿时间： | 2008/3/28 0:00:00 |
Quaternary Activities of the NW-Striking Fault Zone along Downriver of Jinjiang, Fujian Province |
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| Huang Qingtuan,Zhuang Jinyao,Xie Zhizhao,Zhang Qingxiang,Yao Daoping,Zheng Shaopeng and Fang Wei.Quaternary Activities of the NW-Striking Fault Zone along Downriver of Jinjiang, Fujian Province[J].Technology for Earthquake Disaster Prevention,2008,3(3):302-310. |
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| Authors: | Huang Qingtuan Zhuang Jinyao Xie Zhizhao Zhang Qingxiang Yao Daoping Zheng Shaopeng and Fang Wei |
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| Institution: | Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China;Xiamen Seismological Survey and Research Center, Xiamen 361021, China |
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| Abstract: | The NW-striking fault zone along downriver of Jinjiang in Fujian province is distributed along Jinjiang river in the region from Luncang in Nan＇an to linjiang, with a general strike of about 300^o--310^o and dip to NE or SW with dip angle of 55^o--85^o, controlling the boundary of Quanzhou Basin. Through combined analysis of Quaternary geology, geomorphology, dating, geophysics and earthquake, the Quaternary active character of the NW- striking fault along downriver of Jinjiang we found that： （1） The NW-striking fault zone is more dearly exposed from Ltmcang in Nan＇an to Jinjiang in the downriver of Jinjiang, with the increase in scale from northwest to southeast; （2） The last active time changes at different segments, in which Zhengshan-Qifeng fault （F1）, Shijiao fault （F2）, Tmdian fault （Fs） and Jinjiang Dongshan-Shedian fault （F6） are active in early-middle Quaternary, but Qingyuanshan fault （F3） and Wushi-Caiaa fault （F4） are active in late Quaternary; （3） About 6 middle-strong historical earthquakes occurred at the intersections of NW-striking fault zone along downriver of Jinjiang and some NE-striking faults. The trend of earthquake frequency and intension increased from northwest to southeast. |
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| Keywords: | The downriver of Jinjiang Fault activities Earthquake |
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