| DOI: | 10.1002/2014GL061855
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| 论文题名: | Full-wave multiscale anisotropy tomography in Southern California |
| 作者: | Lin Y.-P.; Zhao L.; Hung S.-H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9447
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| EISSN: | 1944-9178
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| 出版年: | 2014
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| 卷: | 41, 期:24 | | 起始页码: | 8809
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| 结束页码: | 8817
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| 语种: | 英语
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| 英文关键词: | full-wave sensitivity kernel
; multiscale tomography
; seismic anisotropy
; Southern California
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| Scopus关键词: | Plates (structural components)
; Strike-slip faults
; Structural geology
; Tectonics
; Tomography
; Wavelet analysis
; Absolute plate motions
; Lithospheric deformation
; Model parameterization
; North american plates
; Seismic anisotropy
; Sensitivity kernels
; Southern California
; Spatial variations
; Anisotropy
; asthenosphere
; deformation
; lithosphere
; mantle process
; parameterization
; plate motion
; seismic anisotropy
; spatial resolution
; three-dimensional modeling
; tomography
; wavelet
; California
; Salton Trough
; San Andreas
; Transverse Ranges
; United States
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| 英文摘要: | Understanding the spatial variation of anisotropy in the upper mantle is important for characterizing the lithospheric deformation and mantle flow dynamics. In this study, we apply a full-wave approach to image the upper-mantle anisotropy in Southern California using 5954 SKS splitting data. Three-dimensional sensitivity kernels combined with a wavelet-based model parameterization are adopted in a multiscale inversion. Spatial resolution lengths are estimated based on a statistical resolution matrix approach, showing a finest resolution length of ~25 km in regions with densely distributed stations. The anisotropic model displays structural fabric in relation to surface geologic features such as the Salton Trough, the Transverse Ranges, and the San Andreas Fault. The depth variation of anisotropy does not suggest a lithosphere-asthenosphere decoupling. At long wavelengths, the fast directions of anisotropy are aligned with the absolute plate motion inside the Pacific and North American plates. Key Points A new full-wave anisotropic tomography is applied to Southern CaliforniaThe multiscale inversion achieves naturally data-adaptive spatial resolutionsSpatial variations of anisotropy correlate well with tectonic features ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921861989&doi=10.1002%2f2014GL061855&partnerID=40&md5=18443f7ee146d084570bfb9a77a23da7
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6711
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Geosciences, National Taiwan University, Taipei, Taiwan
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| Recommended Citation: | |
Lin Y.-P.,Zhao L.,Hung S.-H.. Full-wave multiscale anisotropy tomography in Southern California[J]. Geophysical Research Letters,2014-01-01,41(24).
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