Himalayan tectonics explained by extrusion of a low-viscosity crustal channel coupled to focused surface denudation

  title={Himalayan tectonics explained by extrusion of a low-viscosity crustal channel coupled to focused surface denudation},
  author={C. Beaumont and Rebecca A. Jamieson and Marie Nguyen and B. Lee},
Recent interpretations of Himalayan–Tibetan tectonics have proposed that channel flow in the middle to lower crust can explain outward growth of the Tibetan plateau, and that ductile extrusion of high-grade metamorphic rocks between coeval normal- and thrust-sense shear zones can explain exhumation of the Greater Himalayan sequence. Here we use coupled thermal–mechanical numerical models to show that these two processes—channel flow and ductile extrusion—may be dynamically linked through the… CONTINUE READING
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