The 3D density structure and gravity change of Ludian M(s)6.5 Yunnan epicenter and surrounding regions
文献类型：期刊论文
| 作者 | Chen Shi1; Wang Qing-Hua2; Wang Qian-Shen3; Wang Yan2; Lu Hong-Yan1; Xu Wei-Min1; Shi Lei1; Guo Feng-Yi1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 57期号:9页码:3080-3090 |
| 关键词 | Gravity inversion The 3D Density Structure Gravity filed variation Ludian earthquake Chuandian region |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20140933 |
| 文献子类 | Article |
| 英文摘要 | The August 3, 2014, Ludian, Yunnan, M(s)6.5 earthquake which focal mechanism is the left-lateral slip. The rupture surface of earthquake is the NW direction and almost perpendicular to Zhaotong fault. In our study, we used the 3D gravity inversion approach to inverse 3D density structure, and made a high-quality reference model as initial model with the Crust 1.0 and the newest Moho relief derived by ChinArray project. The 3D density structure shows that the block movement located at the south and north part of Ludian earthquake had been resisted by the Zhaotong fault (ZTF) in the geological time scale, respectively. The resisted ability of north part ZTF is stronger than the south part. Furthermore, we found the significance decrease of gravity field at the Dahaichun (P1) from Oct. 2012 to Jun. 2014. But the gravity change of Jiangdi (P5) measurement point shows the increase tendency. The significant gravity change can't be found at the other points. At last, we give a seismogenic model by the gravity approach. Our results are very important to understand the deep structure of seismogenic region, and also like the key to find the seismic precursor which related to the local gravity change. |
| WOS关键词 | EARTHQUAKE ; INVERSION ; ANOMALIES ; CHINA ; FIELD ; ZONE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000342479900033 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85288]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen Shi |
| 作者单位 | 1.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 2.Yunnan Earthquake Adm, Kunming 650225, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Shi,Wang Qing-Hua,Wang Qian-Shen,et al. The 3D density structure and gravity change of Ludian M(s)6.5 Yunnan epicenter and surrounding regions[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(9):3080-3090. |
| APA | Chen Shi.,Wang Qing-Hua.,Wang Qian-Shen.,Wang Yan.,Lu Hong-Yan.,...&Guo Feng-Yi.(2014).The 3D density structure and gravity change of Ludian M(s)6.5 Yunnan epicenter and surrounding regions.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(9),3080-3090. |
| MLA | Chen Shi,et al."The 3D density structure and gravity change of Ludian M(s)6.5 Yunnan epicenter and surrounding regions".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.9(2014):3080-3090. |
入库方式： OAI收割
来源：地质与地球物理研究所
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