中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
3-DIMENSIONAL P-WAVE VELOCITY STRUCTURE UNDER THE BEIJING NETWORK AREA

文献类型:期刊论文

作者ZHU, LP; ZENG, RS; LIU, FT
刊名ACTA GEOPHYSICA SINICA
出版日期1990-05-01
卷号33期号:3页码:267-277
关键词Inversion Beijing Network Area 3 Dimensional Velocity Lateral Inhomogeneity
ISSN号0001-5733
文献子类Article
英文摘要An inversion study of 2447 teleseimic P-wave travel time residuals observed at Beijing network is given in this paper, using the spatial frequency domain expansion parameterization method proposed recently by the writers. It is proved that the new method can be effectively applied to real data. The results show that there are obvious lateral heterogeneities deep to 100 km beneath the area. The velocity anomaly images in the upper 50 km show certain correlation with the shallow geological features: high velocity zone beneath uplift areas and low velocity zone beneath depressional areas. Below the depth of 100 km, this correlation disappears gradually and the amplitudes of the anomalies decrease. Three prominent low velocity anomalies have been found within the studying area. Among them, the Tianjin-Tangshan anomaly has maximum amplitude. It extends about 100 km in horizontal direction and continues down to a depth of nearly 100 km. Below it, there is another low velocity anomaly. Almost all the strong earthquakes occurred within this area are situated in the transition zone between these high and low velocity anomalies.
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:A1990EQ15100003
出版者ACAD SINICA
源URL[http://ir.iggcas.ac.cn/handle/132A11/81574]  
专题中国科学院地质与地球物理研究所
作者单位1.STATE SEISMOL BUR,INST GEOPHYS,BEIJING,PEOPLES R CHINA
2.CHINESE ACAD SCI,INST GEOPHYS,BEIJING,PEOPLES R CHINA
推荐引用方式
GB/T 7714
ZHU, LP,ZENG, RS,LIU, FT. 3-DIMENSIONAL P-WAVE VELOCITY STRUCTURE UNDER THE BEIJING NETWORK AREA[J]. ACTA GEOPHYSICA SINICA,1990,33(3):267-277.
APA ZHU, LP,ZENG, RS,&LIU, FT.(1990).3-DIMENSIONAL P-WAVE VELOCITY STRUCTURE UNDER THE BEIJING NETWORK AREA.ACTA GEOPHYSICA SINICA,33(3),267-277.
MLA ZHU, LP,et al."3-DIMENSIONAL P-WAVE VELOCITY STRUCTURE UNDER THE BEIJING NETWORK AREA".ACTA GEOPHYSICA SINICA 33.3(1990):267-277.

入库方式: OAI收割

来源:地质与地球物理研究所

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