IGGCAS OpenIR  > 地球与行星物理院重点实验室
The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization
Deng, Bao1,2,3; Li, Junlun1,2,3; Liu, Jiangshan4; Shen, Changming4; Suwen, Junliu5; Chen, Qi-Fu5
2022-05-01
Source PublicationGEOPHYSICS
ISSN0016-8033
Volume87Issue:3Pages:JM29-JM40
AbstractSurface 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.
DOI10.1190/GEO2021-0320.1
Funding OrganizationNational 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
WOS KeywordMULTICHANNEL ANALYSIS ; SEISMIC INTERFEROMETRY ; TOMOGRAPHY ; VELOCITY ; RAYLEIGH ; EMERGENCE ; HUNAN
Language英语
Funding ProjectNational Natural Science Foundation of China[41874048] ; National Key Research and Development Projects[2018YFC0603500]
Funding OrganizationNational 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
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000793464200002
PublisherSOC EXPLORATION GEOPHYSICISTS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105923
Collection地球与行星物理院重点实验室
Corresponding AuthorLi, Junlun
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China
2.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Hefei, Peoples R China
3.Univ Sci & Technol China, Inst Adv Technol, Ctr Adv Geophys Sensing & Intelligent Explorat, Hefei, Peoples R China
4.Res Inst Hunan Prov Nonferrous Met Geol Explorat, Changsha, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
Recommended Citation
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.
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