Characteristicsof crustal structure and their relation with major earthquakes in western China
文献类型：期刊论文
| 作者 | Jiang Di-Di1,2; Jiang Wei-Wei1; Xu Yi1; Hao Tian-Yao1; Hu Wei-Jian1; Yu Jing-Feng1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014-12-01 |
| 卷号 | 57期号:12页码:4029-4040 |
| 关键词 | The western region Crustal structure Seismic activity Seismic tomography |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20141215 |
| 文献子类 | Article |
| 英文摘要 | Major and/or great earthquakes frequently occur in western China, such as the Tian Shan, Altay, Pamir and Kunlun as well-known seismotectonic zones. This paper analyzes the characteristics of the gravity field in western China, inverts the depth of Moho interface by the Parker-Oldenburg method with gravity data and seismic profiles. Through comparison of the results of seismic tomography inversion, we analyze crustal structure of the study area. The results show that the study area is significantly heterogeneous in crustal structure, with main orogenic belts of high-speed while basins and major depressions of low speed. The orogenic belts in the study area are generally Moho depression areas while the basins are the Moho uplift areas. According to the calculation results and epicenter distribution of the study area, we discuss the correlation between crustal structure and major earthquakes. The earthquakes in this region are closely related to crustal heterogeneity, which mainly happen around the crustal velocity change belts and in the regions with great crustal velocity differences. Under the effect of tectonic stress, these crustal non-uniform areas are prone to major earthquakes, which is one of the tectonic reasons for frequent major earthquakes in orogenic belts and near the boundary between basins and mountains in western China. |
| WOS关键词 | WAVE VELOCITY STRUCTURE ; TIBETAN PLATEAU ; UPPER-MANTLE ; ANOMALIES ; TRANSECT ; BENEATH ; ALTAY ; TAGH |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000347270700016 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85820]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Jiang Di-Di |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang Di-Di,Jiang Wei-Wei,Xu Yi,et al. Characteristicsof crustal structure and their relation with major earthquakes in western China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(12):4029-4040. |
| APA | Jiang Di-Di,Jiang Wei-Wei,Xu Yi,Hao Tian-Yao,Hu Wei-Jian,&Yu Jing-Feng.(2014).Characteristicsof crustal structure and their relation with major earthquakes in western China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(12),4029-4040. |
| MLA | Jiang Di-Di,et al."Characteristicsof crustal structure and their relation with major earthquakes in western China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.12(2014):4029-4040. |
入库方式： OAI收割
来源：地质与地球物理研究所
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