| Research on the 3—D Seismic Structures in Qinghai—Xizang Plateau |
| |
| 引用本文： | Ding Zhifeng,He Zhengqin,Wu Jianping,Sun Weiguo. Research on the 3—D Seismic Structures in Qinghai—Xizang Plateau[J]. 中国地震研究, 2002, 16(1): 27-38 |
| |
| 作者姓名： | Ding Zhifeng He Zhengqin Wu Jianping Sun Weiguo |
| |
| 作者单位： | InstituteofGeophysics,ChinaSeismologicalBurean,Beijing100081,China |
| |
| 摘 要： | Based on the recording data from the analogue and broadband digital seismic stations in and around Qinghai-Xizang (Tibet)Platean,the three dimensiomal 3-D) seismic velocity stroctures in Qinghai-Xizang Plateau were obtained by using the regional body wave tomography and surface wave tomography.The results from these two tomography methods have similar characteristics for P-and S-wave velocity structures in crust and upper mantle.They show that there are remarkahle low velocity zones in the upper crust of L hasa block in the southern Qinghai-Xizang Plateau and the lower crust and upper mantle of Qiangtang block in the northern Qinghai-Xizang Plateau.These phenomena may be related to the different steps of collision process in southern and northern Qinghai-Xizang Plateau.
|
| 关 键 词： | 青海 西藏 地震层析成像 三维速度结构 碰撞过程 上地幔 地壳 |
Research on the 3-D Seismic Structures in Qinghai-Xizang Plateau |
| |
| Ding Zhifeng,He Zhengqin,Wu Jianping and Sun Weiguo. Research on the 3-D Seismic Structures in Qinghai-Xizang Plateau[J]. Earthquake Research in China, 2002, 16(1): 27-38 |
| |
| Authors: | Ding Zhifeng He Zhengqin Wu Jianping Sun Weiguo |
| |
| Affiliation: | Institute of Geophysics, China Seismological Bureau, Beijing 100081, China;Institute of Geophysics, China Seismological Bureau, Beijing 100081, China;Institute of Geophysics, China Seismological Bureau, Beijing 100081, China;Institute of Geophysics, China Seismological Bureau, Beijing 100081, China |
| |
| Abstract: | Based on the recording data from the analogue and broadband digital seismic stations in and around Qinghai-Xizang (Tibet) Plateau, the three dimensional (3-D) seismic velocity structures in Qinghai-Xizang Plateau were obtained by using the regional body wave tomography and surface wave tomography. The results from these two tomography methods have similar characteristics for P- and S-wave velocity structures in crust and upper mantle. They show that there are remarkable low velocity zones in the upper crust of Lhasa block in the southern Qinghai-Xizang Plateau and the lower crust and upper mantle of Qiangtang block in the northern Qinghai-Xizang Plateau. These phenomena may be related to the different steps of collision process in southern and northern Qinghai-Xizang Plateau. |
| |
| Keywords: | Qinghai-Xizang Plateau Seismic tomography 3-D velocity structure |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
|
点击此处可从《中国地震研究》下载全文 |
