Big Mantle Wedge and Intraplate Volcanism in Alaska: Insight From Anisotropic Tomography

• Published in: Journal of Geophysical Research: Solid Earth
• Main Authors: Liang, Xuran, Zhao, Dapeng, Hua, Yuanyuan, Xu, Yi-Gang
• Format: Report
• Language: English
• Published: AMER GEOPHYSICAL UNION 2024
• Subjects: Geochemistry & Geophysics; TRAVEL-TIME TOMOGRAPHY; 3-DIMENSIONAL VELOCITY STRUCTURE; P-WAVE TOMOGRAPHY; SEISMIC ANISOTROPY; DISCONTINUITY STRUCTURE; CRUSTAL TRANSECT; SUBDUCTING SLABS; NORTHEAST CHINA; DEEP SLAB; PLATE; Bering Sea; Pacific; Tilting; Yakutat; Alaska
• Online Access: http://ir.gig.ac.cn/handle/344008/76014; https://doi.org/10.1029/2023JB027617

We determine high-resolution tomographic models of isotropic P-wave velocity (Vp) and tilting-axis anisotropy of the Alaska subduction zone using a large number of local and teleseismic data recorded at many portable and permanent network stations in and around Alaska. We find a flat high-Vp slab in...