The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization
文献类型：期刊论文
| 作者 | Deng, Bao1,2,5; Li, Junlun1,2,5; Liu, Jiangshan4; Shen, Changming4; Suwen, Junliu3; Chen, Qi-Fu3 |
| 刊名 | GEOPHYSICS
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 87期号:3页码:JM29-JM40 |
| ISSN号 | 0016-8033 |
| DOI | 10.1190/GEO2021-0320.1 |
| 英文摘要 | Surface wave tomography using seismic ambient noise has been applied widely in subsurface characterization, the depth of which ranges from a few meters in urban underground engineering to tens of kilometers in delineation of crustal heterogeneities. Currently, multichannel analysis of surface waves with active and passive sources together with some similar techniques has been widely applied to obtain fine near-surface structures. However, it is still difficult to retrieve accurate dispersion curves at low frequencies with those methods to constrain structures at greater depths. To better retrieve surface wave dispersion data at lower frequencies using ambient noise data acquired by dense linear arrays, we use the extended range phase shift (ERPS) method, which can extract broadband dispersions from the ambient noise crosscorrelation functions (CFs). A broadband dispersion curve is obtained by merging a dispersion of low-to-medium frequencies measured using receivers with different combinations, whereas both curves reflect the local property of the subsurface structure under a subarray with a relatively small aperture. Thus, the horizontal resolution of the inverted models is not compromised, whereas the inverted depth is improved considerably. We first perform a synthetic test to validate the ERPS method, and then apply the method in characterizing the Woxi polymetallic deposit in Hunan, China, where eight 10 km linear arrays using 467 seismic nodes were deployed to record ambient noise. The dispersion data within 0.5-10 Hz are extracted from the CFs using ERPS and then used to invert for the Vs models down to at least 2 km. The inverted structures are found to be consistent with the previous geologic studies and known structures from underground mining. and the proposed passive-source imaging method is considered to be economical and practical for ore deposit explorations. |
| WOS关键词 | MULTICHANNEL ANALYSIS ; SEISMIC INTERFEROMETRY ; TOMOGRAPHY ; VELOCITY ; RAYLEIGH ; EMERGENCE ; HUNAN |
| 资助项目 | National Natural Science Foundation of China[41874048] ; National Key Research and Development Projects[2018YFC0603500] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000793464200002 |
| 出版者 | SOC EXPLORATION GEOPHYSICISTS |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Projects ; National Key Research and Development Projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Projects ; National Key Research and Development Projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Projects ; National Key Research and Development Projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Projects ; National Key Research and Development Projects |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105923]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Li, Junlun |
| 作者单位 | 1.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Hefei, Peoples R China 2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 4.Res Inst Hunan Prov Nonferrous Met Geol Explorat, Changsha, Peoples R China 5.Univ Sci & Technol China, Inst Adv Technol, Ctr Adv Geophys Sensing & Intelligent Explorat, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Bao,Li, Junlun,Liu, Jiangshan,et al. The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization[J]. GEOPHYSICS,2022,87(3):JM29-JM40. |
| APA | Deng, Bao,Li, Junlun,Liu, Jiangshan,Shen, Changming,Suwen, Junliu,&Chen, Qi-Fu.(2022).The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization.GEOPHYSICS,87(3),JM29-JM40. |
| MLA | Deng, Bao,et al."The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization".GEOPHYSICS 87.3(2022):JM29-JM40. |
入库方式： OAI收割
来源：地质与地球物理研究所
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