The Rayleigh wave dispersion and three dimensional velocity structure in continent and its margin of Southeast China
文献类型：期刊论文
| 作者 | Teng, JW; Zhang, ZJ; Wang, GJ |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2001-09-01 |
| 卷号 | 44期号:5页码:663-677 |
| 关键词 | surface wave three dimension velocity structure asthenosphere Qinling-Dabie orogenic belt deep internal processes |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | In this study, the dispersion of Rayleigh waves crossing Southeast China:and its continental margin is determined by applying the ( Matched-filter frequency-time analysis) technique to CDSN mid-long period data. The technique improves the resolution of dispersion measurement over a broader period range with reduced systematic errors. An improved grid dispersion inversion is proposed to extract pure-path dispersion curves in 4 degrees x 4 degrees grid from the mixed path dispersion data. On the basis of the grid dispersion inversion, we use Harkrider surfer Wave inversion program to study the three dimension shear wave velocity structure to depth of 200km. A detailed description on the lateral heterogeneity in the crust and upper mantle of Southeast China is provided. The results show that: 1. The depth of Moho is generally 30-40km in continent region of Southeast China and 25-28km in its continental margin. The crustal thickness is thin from west, and the features of regional division are quite clear. 2. The depth of the low velocity layer in the upper mantle is 60-150km in continent of southeast China. Distribution of deep faults and deep internal processes has something to do with the great variational amplitude for the lower velocity layer in the upper mantle. 3. The Southeast margin of China is a transition belt between continent and Sea. Its characteristics are shown that there is a low velocity zone and the depth of the Moho is shallow. The undulate shape of deep interface of the mantle makes clear, moreover, its cupping between. deep and shallow and structure is inhomogeneity. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000172700100010 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76533]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Teng, JW |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100101, Peoples R China 2.Yunnan Univ, Kunming 650091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng, JW,Zhang, ZJ,Wang, GJ. The Rayleigh wave dispersion and three dimensional velocity structure in continent and its margin of Southeast China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2001,44(5):663-677. |
| APA | Teng, JW,Zhang, ZJ,&Wang, GJ.(2001).The Rayleigh wave dispersion and three dimensional velocity structure in continent and its margin of Southeast China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,44(5),663-677. |
| MLA | Teng, JW,et al."The Rayleigh wave dispersion and three dimensional velocity structure in continent and its margin of Southeast China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 44.5(2001):663-677. |
入库方式： OAI收割
来源：地质与地球物理研究所
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