Crustal structure and velocity distribution from deep seismic sounding along the profile of Lianxian-Boluo-Gangkou in South China
文献类型：期刊论文
| 作者 | Yin, ZX; Lai, MH; Xiong, SB; Liu, HB; Teng, JW; Kong, XR |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 1999-05-01 |
| 卷号 | 42期号:3页码:383-392 |
| 关键词 | South China Moho discontinuity deep seismic souding crustal structure |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The profile is located in South China, 400km long, running from Lianxian to Gangkou. There are 200 recording stations being placed along the profile to record the seismic signal from explosive sources. Six seismic time sections are plotted by about 700 seismic recording channels, from which two refraction phases (P-g and P-n) and five reflection phases (P-1, P-2, P-3, P-4 and P-m) are traced. The P-g travels through the shallow earth's crust and P-n is refracted from the top of uppermantle. P-1, P-2, P-3, and P-4 are caused by various interfaces in the crust respectively and P-m comes from Moho discontinuity. By analyzing, some primary results are obtained. The shallow crustal structure and velocity distribution having a close relationship with the faults are imaged by travel time of P-g wave phase. The crustal average velocity of P-m wave is 6.25 km/s, which calculated by P-m phase with stronger energy. The thickness of the crust become thin gradually from northwest to southeast part, but the variation of thickness is slightly. The depth of Moho is 32-34 km from Qingyuan to Lianxian, about 30 lan at the region of Boluo to Huidong, and 29.5 km between Huidong and Gangkou. The P-n phase can be traced beyond 140 km to 200 km from the section with longer recording distance. The velocity of P-n is about 8.06 km/s. A 2D model with five-layered structure was obtained and discussed in this paper integrating the model with data of geological history, earthquake, geothermal survey and mineral resources. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000083223700011 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75666]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yin, ZX |
| 作者单位 | Chinese Acad Sci, Inst Geophys, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, ZX,Lai, MH,Xiong, SB,et al. Crustal structure and velocity distribution from deep seismic sounding along the profile of Lianxian-Boluo-Gangkou in South China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,1999,42(3):383-392. |
| APA | Yin, ZX,Lai, MH,Xiong, SB,Liu, HB,Teng, JW,&Kong, XR.(1999).Crustal structure and velocity distribution from deep seismic sounding along the profile of Lianxian-Boluo-Gangkou in South China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,42(3),383-392. |
| MLA | Yin, ZX,et al."Crustal structure and velocity distribution from deep seismic sounding along the profile of Lianxian-Boluo-Gangkou in South China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 42.3(1999):383-392. |
入库方式： OAI收割
来源：地质与地球物理研究所
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