西藏流动图：高分辨率大地测量速度揭示弱断层在青藏高原变形中的作用

High-resolution geodetic velocities reveal role of weak faults in deformation of Tibetan Plateau T. J. Wright1*, G. A. Houseman2,1, J. Fang1*, Y. Maghsoudi3, A. J. Hooper1, J. R. Elliott1, L. Evans4, M. Lazecky1, Q. Ou5, B. E. Parsons6, J. C. Rollins7, L. Shen8, H. Wang9, D. Wang1 understanding the key mechanisms that control the tectonic deformation of the continents remains a fundamental challenge in geodynamics. We present a high-resolution geodetic velocity field of the Tibetan Plateau, which shows that a few major strike-slip fault systems separate regions of more uniformly distributed deformation. We suggest that focused strain on major fault systems is enabled by relatively low-viscosity ductile shear zones extending through the lithosphere beneath the seismically active fault planes. …