-
- Yu‐Pin Lin
- Department of Geosciences National Taiwan University Taipei Taiwan
-
- Li Zhao
- Institute of Earth Sciences Academia Sinica Taipei Taiwan
-
- Shu‐Huei Hung
- Department of Geosciences National Taiwan University Taipei Taiwan
書誌事項
- 公開日
- 2014-12-23
- 権利情報
-
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1002/2014gl061855
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>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.</jats:p>
収録刊行物
-
- Geophysical Research Letters
-
Geophysical Research Letters 41 (24), 8809-8817, 2014-12-23
American Geophysical Union (AGU)