The depth-dependence of crustal extension beneath Qiongdongnan basin area and its tectonic implications
文献类型：期刊论文
| 作者 | Zhang Zhong-Jie1; Liu Yi-Feng1,2; Zhang Su-Fang1; Fan Wei-Ming3; Chen Lin1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2010 |
| 卷号 | 53期号:1页码:57-66 |
| 关键词 | The northern continental margin of South China Sea Crustal extension Depth-dependence Simple-shear model Low-angle detachment |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.01.007 |
| 文献子类 | Article |
| 英文摘要 | The depth-dependence of crustal extension factor is considered as an important indicator to understand lithosphere evolution. We used the crustal layering model to estimate extension factors both of upper crust and whole crust along the deep seismic profiles carried out in the Qiongdongnan basin areas, northern continental margin, South China Sea. The results demonstrate the obvious depth-dependence of extension factor within crust (the factor ranges within 1.0 similar to 2.0 for the upper crust and 1.2 similar to 2.5 for the whole crust); the spatially lateral heterogeneity of crustal extension factors and anisotropy (the extension factors in NW-SE larger than in NE-SW indicating the dominant extension direction of NW). These results suggest the predominating extension direction in the northern continental margin of South China Sea and different extension processes occurred in the western and eastern portions of the studied area and/or different mechanisms controlling the extension. Integrating the related geological, geophysical and geochemistry dataset, we infer that the depth-dependence of crustal extension factor and probably simultaneous occurrence of mantle exhumation are resulted from large-scale lithosphere extension in South China controlled by low-angle detachment as simple-shear model. |
| WOS关键词 | SOUTH-CHINA-SEA ; NORTHERN CONTINENTAL-MARGIN ; WAVE VELOCITY STRUCTURE ; SIMPLE SHEAR ; HEAT-FLOW ; ADJACENT ; EVOLUTION ; PROFILE ; MANTLE ; TROUGH |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000274274500007 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72464]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang Zhong-Jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.CNOOC, Beijing Res Ctr, Beijing 100027, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Zhong-Jie,Liu Yi-Feng,Zhang Su-Fang,et al. The depth-dependence of crustal extension beneath Qiongdongnan basin area and its tectonic implications[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(1):57-66. |
| APA | Zhang Zhong-Jie,Liu Yi-Feng,Zhang Su-Fang,Fan Wei-Ming,&Chen Lin.(2010).The depth-dependence of crustal extension beneath Qiongdongnan basin area and its tectonic implications.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(1),57-66. |
| MLA | Zhang Zhong-Jie,et al."The depth-dependence of crustal extension beneath Qiongdongnan basin area and its tectonic implications".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.1(2010):57-66. |
入库方式： OAI收割
来源：地质与地球物理研究所
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