Evidence for an anisotropic lower mantle beneath eastern Asia: Comparison of shear-wave splitting data of SKS and P660s
نویسندگان
چکیده
منابع مشابه
Shear wave splitting and mantle flow associated with the deflected Pacific slab beneath northeast Asia
[1] A total of 361 SKS and five local S wave splitting measurements obtained at global and regional seismic network stations in NE China and Mongolia are used to infer the characteristics of mantle fabrics beneath northeast Asia. Fast polarization directions at most of the stations in the western part of the study area are found to be consistent with the strike of local geological features. The...
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Fabrice R. Fontaine,1,2 Guilhem Barruol,1,3 Andréa Tommasi3 and Götz H. R. Bokelmann3 1Laboratoire Terre-Océan, Université de Polynésie française, BP 6570, 98702 Faaa, Tahiti, Polynésie française 2Research School of Earth Sciences, Australian National University, Building 61, Mills Road, Canberra, ACT 0200, Australia. E-mail: [email protected] 3Géosciences Montpellier, CNRS, Université Mo...
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The Gulf of California region has undergone a major evolution over the past ∼15Ma, since subduction of the now-extinct Farallon plate ceased and transform motion began, leading to the initiation of rifting and the opening of the Gulf of California ∼5Ma ago. The character of dynamic processes in the upper mantle beneath the region remains poorly understood, but constraints on seismic anisotropy ...
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[1] In order to constrain the vertical and lateral extent of deformation and the interactions between lithosphere and asthenosphere in a context of a transpressional plate boundary, we performed teleseismic shear wave splitting measurements for 65 permanent and temporary broadband stations in central California. We present evidence for the presence of two anisotropic domains: (1) one with clear...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 1998
ISSN: 0094-8276
DOI: 10.1029/98gl00297