An improved H-kappa-theta stacking method to determine the crustal thickness and bulk v(P)/v(S) ratios in the case of a slant Moho interface
文献类型：期刊论文
| 作者 | Tan Ping1,2,3; Chen Yun1,2; Sun WeiZhao4; Li Wei1,2; Tang GuoBin5; Cui Tian1,2,3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 61期号:9页码:3689-3700 |
| ISSN号 | 0001-5733 |
| 关键词 | Crustal thickness v(P)/v(S) ratios P-wave receiver functions H-kappa stacking method Slant Moho interface |
| DOI | 10.6038/cjg2018M0032 |
| 英文摘要 | Crustal thickness and v(P)/v(S) ratio (or Poisson's ratio) are the key seismological parameters for studying the crustal composition and properties. The H-kappa stacking method is widely used as one of the most powerful techniques to determine the two parameters beneath a seismic station using teleseismic P-wave receiver functions. However, the H-kappa stacking method assumes the Moho interface is flat, and thus the arrival times of converted Ps waves and subsequent multiples relative to the direct P-wave depend mainly on the crustal thickness and P- and S-wave velocities. The synthetic test shows that the crustal thickness and v(P)/v(S) ratios obtained by the H-kappa stacking method would greatly deviate from the real model when the Moho interface is slant, and this deviation increases with the increasing dip angle of the Moho interface. In particular, this deviation will lead to the overestimation of v(P)/v(S) ratios, and eventually mislead the interpretation of the crustal structure and properties. In this study, the formulas of the theoretical arrival times of converted Ps waves and multiples between the slant Moho interface and the ground surface are derived, and then an improved H-kappa-theta stacking method is developed to determine the crustal thickness, bulk v(P)/v(S) ratios and dip angle of the Moho interface (H-kappa-theta) simultaneously based on the idea of the HK stacking method. The synthetic tests validate the good stability and reliability of the improved H-kappa-theta stacking method. Applying the improved method to the Hi-CLIMB array data in southern Tibet further shows that the H-kappa-theta stacking method has the good practicability for real seismic data. |
| WOS关键词 | RECEIVER-FUNCTION ; POISSONS RATIO ; TIBETAN PLATEAU ; BENEATH ; ANISOTROPY ; MARGIN ; DEPTH ; CHINA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000444791100017 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/88718]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Chen Yun |
| 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, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.BGP Inc, Geophys Res Inst, CNPC, Zhuozhou 072750, Hebei, Peoples R China 5.Guilin Univ Technol, Coll Earth Sci, Guilin 541006, Guangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan Ping,Chen Yun,Sun WeiZhao,et al. An improved H-kappa-theta stacking method to determine the crustal thickness and bulk v(P)/v(S) ratios in the case of a slant Moho interface[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(9):3689-3700. |
| APA | Tan Ping,Chen Yun,Sun WeiZhao,Li Wei,Tang GuoBin,&Cui Tian.(2018).An improved H-kappa-theta stacking method to determine the crustal thickness and bulk v(P)/v(S) ratios in the case of a slant Moho interface.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(9),3689-3700. |
| MLA | Tan Ping,et al."An improved H-kappa-theta stacking method to determine the crustal thickness and bulk v(P)/v(S) ratios in the case of a slant Moho interface".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.9(2018):3689-3700. |
入库方式： OAI收割
来源：地质与地球物理研究所
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