地震学报(英文版)2006,Vol.19Issue(5):530-541,12.
Active fault survey on the Tanlu fault zone in Laizhou Bay
Active fault survey on the Tanlu fault zone in Laizhou Bay
摘要
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 Holocene, 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.关键词
active fault survey/Tanlu faul tzone/Laizhou BayKey words
active fault survey/Tanlu faul tzone/Laizhou Bay分类
天文与地球科学引用本文复制引用
WANG Zhi-cai,YANG Xi-ha,LI Chang-chuan,DENG Qi-dong,DU Xian-song,CHAO Hong-tai,WU Zi-quan,XIAO Lan-xi,SUN Zhao-ming,MIN Wei,LING Hong..Active fault survey on the Tanlu fault zone in Laizhou Bay[J].地震学报(英文版),2006,19(5):530-541,12.基金项目
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). (SD10504, SD10503)