Crustal density structure of the central Longmenshan and adjacent area and its geodynamic implications
文献类型：期刊论文
| 作者 | Wang Peng1,2; Zhang ZhongJie3; Zhang Xi3; Han YanYan2,3; Wang MinLing2,3; Hou Jue2,3; Xu Tao3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 30期号:4页码:1179-1187 |
| 关键词 | Longmenshan Sichuan basin EGM 2008 Density structure |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Longmenshan is an important part of the topographic and tectonic boundaries in China. The varied lithospheric structure on two sides of Longmenshan could take part in the formation of Longmenshan orogenic belt and have a lasting effect on the evolution of Longmenshan. In order to understand the differences between the structure of crust and mantle on two sides of Longmenshan, we constructed the density structure under a profile crossing central Longmenshan. Based on gravity anomaly data from EGM2008 model and crustal P-wave velocity structure from the latest Aba-Suining deep seismic sounding profile, we obtained detailed crustal density structure of central Longmenshan and adjacent area. The density structure showed weak lower crust in Songpan-Ganzi, strong lower crust in Sichuan Basin and upwelling of material from lower crust beneath Longmenshan. Based on the crustal density structure obtained in this study, we suggest that the uplift of the Longmenshan has been mainly controlled by the continent-continent collision between the Indian plate and the Eurasian plate, which has forced the crustal material of the Tibetan Plateau move eastward. While restricted by the rigid Sichuan basin, the crustal material of the Songpan-Ganzi in eastern part of the Tibetan Plateau move upward, and this could be the reason for the uplift and formation of the Longmenshan. |
| WOS关键词 | WENCHUAN M(S)8.0 EARTHQUAKE ; WAVE VELOCITY STRUCTURE ; TIBETAN PLATEAU ; EASTERN MARGIN ; SICHUAN BASIN ; WEST SICHUAN ; UPPER-MANTLE ; FLOW ; DEFORMATION ; TECTONICS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000335541600022 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86768]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang Peng |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Peng,Zhang ZhongJie,Zhang Xi,et al. Crustal density structure of the central Longmenshan and adjacent area and its geodynamic implications[J]. ACTA PETROLOGICA SINICA,2014,30(4):1179-1187. |
| APA | Wang Peng.,Zhang ZhongJie.,Zhang Xi.,Han YanYan.,Wang MinLing.,...&Xu Tao.(2014).Crustal density structure of the central Longmenshan and adjacent area and its geodynamic implications.ACTA PETROLOGICA SINICA,30(4),1179-1187. |
| MLA | Wang Peng,et al."Crustal density structure of the central Longmenshan and adjacent area and its geodynamic implications".ACTA PETROLOGICA SINICA 30.4(2014):1179-1187. |
入库方式： OAI收割
来源：地质与地球物理研究所
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