福建厦门筼筜港北东向断裂带活动性研究
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摘要
本文根据航卫片、第四纪地质、地貌、浅层地震、钻孔、年代学等资料,分析了厦门筼筜港北东向断裂带的第四纪晚期活动特征,并阐述了其构造组合特征。结果表明:①断裂带中的文灶-龙山-五通断裂和虎尾山-钟宅断裂为第四纪早期断裂,晚更新世以来不再活动;②筼筜港断裂为晚更新世早、中期活动断裂,晚更新世晚期(约3万年)以来不活动;③文灶-龙山-五通断裂和虎尾山-钟宅断裂将厦门岛切割为3个地块,分别形成了仙岳山地垒、筼筜港地堑和云顶岩地垒的构造组合,晚更新世晚期以来地壳以整体性上升运动为总趋势。
The NE-striking Yundanggang fault zone, consisted of 3 normal faults, is distributed in Xiamen island, Fujian province, with a general strike of about 50° and dip to NW or SE with an angle of 50°—70°, controlling the boundary of Yundanggang Basin. Based on the previous work, through analysis in Quaternary geology, geomorphology, high-resolution seismic profiling, dating and drilling, the Quaternary active character of the NE-striking Yundanggang fault zone is discussed. The results are as follows: Wenzao-Longshan-Wutong fault segment and Huweishan-Zhongzai fault segment of this zone are active in early Quatemary, but inactive since late Pleistocene; Yundanggang fault, as an active fault, is active in early-middle Pleistocene. These above two faults divided Xiamen island into 3 blocks: Xianyueshan, Yundanggang and Yundingyan, with different movement.
The NE-striking Yundanggang fault zone, consisted of 3 normal faults, is distributed in Xiamen island, Fujian province, with a general strike of about 50° and dip to NW or SE with an angle of 50°—70°, controlling the boundary of Yundanggang Basin. Based on the previous work, through analysis in Quaternary geology, geomorphology, high-resolution seismic profiling, dating and drilling, the Quaternary active character of the NE-striking Yundanggang fault zone is discussed. The results are as follows: Wenzao-Longshan-Wutong fault segment and Huweishan-Zhongzai fault segment of this zone are active in early Quatemary, but inactive since late Pleistocene; Yundanggang fault, as an active fault, is active in early-middle Pleistocene. These above two faults divided Xiamen island into 3 blocks: Xianyueshan, Yundanggang and Yundingyan, with different movement.
引文
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黄卿团,庄进耀,谢志招等,2005.福建龙海-漳浦沿海活动断裂与火山活动.地震地质,27(1):89-97.
黄卿团,付萍,郑韶鹏,2007.福建东南沿海50m以下的地貌面与断裂活动性.地震地质,29(3):578-596.
朱金芳,谢志招,曲国胜等,2008.闽南地区城市活动构造与地震.北京:科学出版社.
丁祥焕,王耀东,叶盛基等,1999.福建东南沿海活动断裂与地震.福州:福建科学技术出版社.
黄卿团,丁祥焕,庄进耀,1999.福建东南沿海晚第四纪断陷构造的形成和发育.见:活动断裂研究(7),国家地震局地质研究所.北京:地震出版社,67-80.
黄卿团,庄进耀,谢志招等,2005.福建龙海-漳浦沿海活动断裂与火山活动.地震地质,27(1):89-97.
黄卿团,付萍,郑韶鹏,2007.福建东南沿海50m以下的地貌面与断裂活动性.地震地质,29(3):578-596.
朱金芳,谢志招,曲国胜等,2008.闽南地区城市活动构造与地震.北京:科学出版社.
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