Fig. 6
From: Pn tomographic velocity and anisotropy beneath the Tibetan Plateau and the adjacent regions
Tomographic image of Pn velocity anisotropy. Blue line segments are drawn parallel to the direction of anisotropy, with their lengths proportional to the magnitude of anisotropy. Regions exhibiting large anisotropy and having dense ray coverage are marked with purple circles and labeled a, b, and c. The orange arrows represent crustal movement directions from GPS (Zhang et al., 2004). The black lines represent the shear-wave splitting measurements (Sol et al., 2007).