The crustal structure and gravity isostasy in the middle western Sichuan area
文献类型：期刊论文
| 作者 | Wang Qian-Shen; Teng Ji-Wen; Zhang Yong-Qian; Zhang Xue-Mei; Yang Hui |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 52期号:2页码:579-583 |
| 关键词 | Wenchuan M(s)8.0 violent earthquake Movement of the deep material Crustal structure Bouguer anomaly Gravity isostasy |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The genearation, occurrence and development of Wenchuan M(s)8. 0 great earthquake was the product of decomposition, adjustment and movement of the deep material. Therefore, two profiles of crustal thickness M are obtained by using the data of Bouguer gravity anomalies. The deep crustal structures around Longmen Shan mountain fault system and its adjacent area are obtained. Meanwhile, the theoretic isostatic crustal thickness D are obtained according to Airy's isostatic theory, to research the crustal isostatic state in Sichuan Basin, Longmen Shan, Qionglai Shan and western Sichuan mountains area. After that, the distributions of D and M in this area are compared mutually. The results indicated that Longmen Shan orogenic zone is in a very non-isostatic state, i. e., the crust is in a unstable state. There obvious differences between the orogenic zone and its north-west or south-east parts are existed. The precise deep structure, effect of gravity field and isostatic compensation must be researched, for the study of the relationship of gravity field effect and strong earthquakes. This research result may provide deep factors for the selection of location, re-construction of buildings, layout of towns and villages after earthquake. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000263938300029 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70432]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang Qian-Shen |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Qian-Shen,Teng Ji-Wen,Zhang Yong-Qian,et al. The crustal structure and gravity isostasy in the middle western Sichuan area[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(2):579-583. |
| APA | Wang Qian-Shen,Teng Ji-Wen,Zhang Yong-Qian,Zhang Xue-Mei,&Yang Hui.(2009).The crustal structure and gravity isostasy in the middle western Sichuan area.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(2),579-583. |
| MLA | Wang Qian-Shen,et al."The crustal structure and gravity isostasy in the middle western Sichuan area".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.2(2009):579-583. |
入库方式： OAI收割
来源：地质与地球物理研究所
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