Chun-Yong Wang, Lucy M. Flesch, Paul G. Silver, Li-Jun Chang, Winston W. Chan; Evidence for mechanically coupled lithosphere in central Asia and resulting implications. Geology 2008; 36 (5): 363-366. doi: 10.1130/G24450A.1
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The recent dramatic increase in seismic anisotropy and surface global positioning system (GPS) data for central Asia permits a comprehensive examination of the mantle's role in mountain building. A joint analysis of 178 shear-wave-splitting and ~2000 GPS observations using a new technique reveals that the crust and lithospheric mantle deform coherently, arguing for crust-mantle mechanical coupling during deformation. The observed spatial variations in anisotropy reflect the large-scale pattern of lithospheric deformation, as well as a change in deformational style from simple shear on the Tibetan Plateau transitioning to pure shear in surrounding regions.