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| Active fault survey on the Tanlu fault zone in Laizhou Bay | |
| 引用本文： | 王志才 邓起东 杜宪宋 晁洪太 吴子泉 肖兰喜 孙昭民 闵伟 凌宏 杨希海 李长川. Active fault survey on the Tanlu fault zone in Laizhou Bay[J]. 地震学报(英文版), 2006, 19(5): 530-541. DOI: 10.1007/s11589-006-0506-5 |
| 作者姓名： | 王志才 邓起东 杜宪宋 晁洪太 吴子泉 肖兰喜 孙昭民 闵伟 凌宏 杨希海 李长川 |
| 作者单位： | [1]Earthquake Administration of Shandong Province, Jinan 250014, China [2]Institute of Geology, China Earthquake Administration, Beijing 100029, China |
| 基金项目： | Foundation item： Key Projects of Earthquake Prerention and Disasters Mitigation in the 10th Five-year Plan of Shandong Province （SD10504, SD10503）, Joint Seismological Science Foundation of China （201019） and Natural Science Foundation of Shandong Province （Z98E01003）. |
| 摘 要： | Introduction The Tanlu fault zone, the largest active structure in the eastern region of China, is character-ized by right lateral strike-slip movement with dip-slip component in the Quaternary; it shows great significance for the modern seismicity (FANG et al, 1976; Institute of Geophysics, China Earthquake Administration, 1987; GAO et al, 1980; MA, 1987; LI, 1989; CHAO et al, 1995). The Tanlu fault zone is the boundary between the Jiaoliao block and the North China Plain block of … |
| 关 键 词： | 地震 构造运动 活性 更新世 第四纪 |
| 文章编号： | 1000-9116（2006）05-0530-12 |
| 收稿时间： | 2005-12-23 |
| 修稿时间： | 2006-06-26 |
Active fault survey on the Tanlu fault zone in Laizhou Bay |
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| WANG Zhi-cai,DENG Qi-dong,DU Xian-song,CHAO Hong-tai,WU Zi-quan,XIAO Lan-xi,SUN Zhao-ming,MIN Wei,LING Hong,YANG Xi-ha,LI Chang-chuan. Active fault survey on the Tanlu fault zone in Laizhou Bay[J]. Acta Seismologica Sinica(English Edition), 2006, 19(5): 530-541. DOI: 10.1007/s11589-006-0506-5 | |
| Authors: | WANG Zhi-cai DENG Qi-dong DU Xian-song CHAO Hong-tai WU Zi-quan XIAO Lan-xi SUN Zhao-ming MIN Wei LING Hong YANG Xi-ha LI Chang-chuan |
| Affiliation: | 1. Earthquake Administration of Shandong Province,Jinan,250014,China;Institute of Geology,China Earthquake Administration,Beijing,100029,China 2. Institute of Geology,China Earthquake Administration,Beijing,100029,China 3. Earthquake Administration of Shandong Province,Jinan,250014,China |
| Abstract: | Shallow-depth acoustic reflection profiling survey has been conducted on the Tanlu fault zone in Laizhou Bay. It is found that the Tanlu fault zone is obviously active during the late Quaternary and it is still the dominating structure in this region. The Tanlu fault zone consists of two branches. The KL3 fault of the western branch is composed of several high angle normal faults which had been active during the period from the latest Pleistocene to early Holo- cene, dissected by a series of northeast or approximate east-west trending fault which leaped sediment of the late Pleistocene. The Longkou fault of the eastern branch consists of two right-laterally stepped segments. Late Quaternary offsets and growth strata developed along the Tanlu fault zone verify that the fault zone retained active in the latest Pleistocene to the early Holocene. The Anqiu-Juxian fault that passes through the middle of Shandong and corresponds to the Longkou fault is composed of a series of right-laterally stepped segments. The active faults along the eastern branch of the Tanlu fault zone from the Laizhou bay to the north of Anqiu make up a dextral simple shear deformation zone which is characterized by right-lateral strike-slip movement with dip-slip component during the late Quaternary. |
| Keywords: | active fault survey Tanlu fault zone Laizhou Bay |
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