Crustal density and composition models beneath Qiongdongnan basin
文献类型：期刊论文
| 作者 | Zhao Bing1; Zhang Su-Fang1; Li Shou-Lin1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:1页码:98-107 |
| 关键词 | Crustal density structure Rock composition Bouguer anomaly Temperature-pressure correction |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.01.011 |
| 文献子类 | Article |
| 英文摘要 | Taking the crustal velocity structure model as constraints, we acquired the crustal density structure model of Qiongdongnan basin by forward fitting the Bouguer anomaly distribution. Then, after temperature-pressure correction of crustal density model, we combine the crustal velocity model and high temperature and pressure experiment results of the most common rock composition, to infer rock composition of the upper crust of five depressions in Qiongdongnan basin. The results show that crustal rock density exhibits strong vertical and horizontal heterogeneity in Qiongdongnan basin; the spatial variation of rock density is closely related to the structure pattern of alternate depressions and uplifts. The central part of the basin presents layered high density structures; there are three isolated high-density zones at the depth of 10 km, a uniform high density center at the depth of 16 km, and two separate high-density zones at 22 km. Our results support the simple shear model with simultaneous occurrence of lithosphere extension and mantle exhumation controlled by low-angle thrust fault(s). |
| WOS关键词 | SOUTH-CHINA-SEA ; NORTHERN CONTINENTAL-MARGIN ; SEISMIC VELOCITY STRUCTURE ; WAVE VELOCITY ; HEAT-FLOW ; MARIANA TROUGH ; TECTONICS ; EVOLUTION ; EXTENSION ; PACIFIC |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000286848200011 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74412]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao Bing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.SINOPEC Int Petr Exploration & Prod Corp, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Bing,Zhang Su-Fang,Li Shou-Lin. Crustal density and composition models beneath Qiongdongnan basin[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(1):98-107. |
| APA | Zhao Bing,Zhang Su-Fang,&Li Shou-Lin.(2011).Crustal density and composition models beneath Qiongdongnan basin.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(1),98-107. |
| MLA | Zhao Bing,et al."Crustal density and composition models beneath Qiongdongnan basin".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.1(2011):98-107. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。