Transverse variations of crustal thickness and V-P/V-S ratio under the stations in the Liaodong anteclise-Yanshan belt-Xingmeng orogenic belt and their tectonic implications
文献类型：期刊论文
| 作者 | Wei Zi-Gen1,2; Chen Ling1; Yang Xiao-Lin3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 54期号:11页码:2799-2808 |
| 关键词 | Liaodong upwarp Yanshan belt Xingmeng orogenic belt Crustal thickness V-P/V-S ratio |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.11.010 |
| 文献子类 | Article |
| 英文摘要 | We obtained the crustal thickness and average crustal V-P/V-S ratio along the profiles across the Liaodong anteclise, Yanshan belt and Xingm.eng orogenic belt using H-kappa stacking of receiver functions. The result shows that the average crustal thicknesses of these three tectonic units are 32, 33 and 35km, respectively, indicative of slight differences, and display distinct transverse variations in the crustal structure. The crust is thicker in the middle and thinner on each side in the Liaodong anteclise, whereas the thickness of the crust varies smoothly in the Yanshan belt. In the Xingmeng orogenic belt, the crust thickens sharply from southeast to northwest near the Solonker suture. The V-P/V-S ratio also fluctuates obviously in the study region. In particular, it varies laterally in the Yanshan belt and increases markedly nearby the boundary area between the Yanshan belt and the Xingmeng orogenic belt (near the north-south gravity lineament (NSGL)). However, the V-P/V-S ratio is relatively low and has no much change in the Xingmeng orogenic belt. The distinct crustal structures between the Yanshan belt and the Xingmeng orogenic belt are probably indicative of a more intense crustal modification in the Yanshan belt compared with the Xingmeng orogenic belt during Mesozoic-Cenozoic time. Significant changes in the crustal structure roughly coincide with the NSGL. This together with the concordant change in the deep lithospheric structure observed previously suggests that the NSGL may be a lithospheric-scale intra-continental tectonic boundary, the opposite sides of which may have evolved differently in the Phanerozoic. The thickening of the crust in the Xingmeng orogenic belt (near the Solonker suture) and the Liaodong anteclise appears to mirror the surface topography, and corresponds to relatively stable V-P/V-S ratios. This feature probably indicates relatively even Phanerozoic modifications of the crust in each region, resulting in minor lateral variations in the crustal structure and components at the present time. |
| WOS关键词 | NORTH CHINA CRATON ; SINO-KOREAN CRATON ; TELESEISMIC RECEIVER FUNCTIONS ; SURFACE-WAVE TOMOGRAPHY ; POISSONS RATIO ; CONTINENTAL-CRUST ; UPPER-MANTLE ; MOHO DEPTH ; BENEATH ; COMPLEX |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000297535900010 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74408]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wei Zi-Gen |
| 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, Coll Earth Sci, Beijing 100049, Peoples R China 3.Shaanxi Earthquake Adm, Xian 710068, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei Zi-Gen,Chen Ling,Yang Xiao-Lin. Transverse variations of crustal thickness and V-P/V-S ratio under the stations in the Liaodong anteclise-Yanshan belt-Xingmeng orogenic belt and their tectonic implications[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(11):2799-2808. |
| APA | Wei Zi-Gen,Chen Ling,&Yang Xiao-Lin.(2011).Transverse variations of crustal thickness and V-P/V-S ratio under the stations in the Liaodong anteclise-Yanshan belt-Xingmeng orogenic belt and their tectonic implications.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(11),2799-2808. |
| MLA | Wei Zi-Gen,et al."Transverse variations of crustal thickness and V-P/V-S ratio under the stations in the Liaodong anteclise-Yanshan belt-Xingmeng orogenic belt and their tectonic implications".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.11(2011):2799-2808. |
入库方式： OAI收割
来源：地质与地球物理研究所
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