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学科主题: Materials Science, Multidisciplinary; Multidisciplinary Sciences
题名: Identification and analysis of shear waves recorded by three-component OBSs in northeastern South China Sea
作者: Zhao, MH ; Qiu, XL ; Xia, SH ; Wang, P ; Xia, KY ; Xu, HL
通讯作者: mhzhao@scsio.ac.cn
关键词: converted shear wave ; deep crustal structure ; three-component ocean bottom seismometer ; northeastern South China Sea
刊名: PROGRESS IN NATURAL SCIENCE
发表日期: 2008
卷: 18, 期:2, 页:181-188
收录类别: sci
部门归属: [Zhao, Minghui; Qiu, Xuelin; Xia, Shaohong; Wang, Ping; Xia, Kanyuan; Xu, Huilong] Chinese Acad Sci, Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: 海洋地质
摘要: Structure models associated with P- and S-wave velocities contain considerable amount of information on lithology and geophysical properties, which can be used to better understand the complexity of the deep crustal structure. However, records of converted shear waves are less due to the speciality of seismic survey at sea and the rigorous generated conditions. The study on shear waves has always been a weakness for studying the deep crustal structures of South China Sea (SCS). In this paper, eleven three-component OBSs were deployed along the Profile OBS-2001 in northeastern SCS. After the data processing of polarization and band-pass filter, converted S-wave phases were identified in the radical component records of nine OBSs. Taking the OBS7 as an example, identification and analysis of converted shear waves were presented and discussed in detail. A few phase groups, such as PWSc, PgSs, PnSc, PmS, and PWSn, were found coming from the deep crust or Moho interface by simple theoretical model calculation and ray-tracing simulation. The results not only provide the underlying basis for studies of S-wave velocity structure and Poisson's ratio structure, but also reveal the relationship between crustal petrology and seismology, which will be of importance for making full use of S-wave information in the future. (c) 2007 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000253767200008
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4574
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Zhao, MH; Qiu, XL; Xia, SH; Wang, P; Xia, KY; Xu, HL.Identification and analysis of shear waves recorded by three-component OBSs in northeastern South China Sea,PROGRESS IN NATURAL SCIENCE,2008,18(2):181-188
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