Recent interpretations of Himalayan–Tibetan tectonics have proposed that channel flow in the middle to lower crust can explain outward growth of the Tibetan plateau1,2,3, and that ductile extrusion of high-grade metamorphic rocks between coeval normal- and thrust-sense shear zones can explain exhumation of the Greater Himalayan sequence4,5,6,7. 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 effects of surface denudation focused at the edge of a plateau that is underlain by low-viscosity material. Our models provide an internally self-consistent explanation for many observed features of the Himalayan–Tibetan system8,9,10.
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Royden, L. H. Coupling and decoupling of crust and mantle in convergent orogens: implications for strain partitioning in the crust. J. Geophys. Res. 101, 17679–17705 (1996).
Clark, M. K. & Royden, L. H. Topographic ooze: Building the eastern margin of Tibet by lower crustal flow. Geology 28, 703–706 (2000).
Shen, F., Royden, L. H. & Burchfiel, B. C. Large-scale crustal deformation of the Tibetan Plateau. J. Geophys. Res. 106, 6793–6816 (2001).
Grujic, D. et al. Ductile extrusion of the Higher Himalayan Crystalline in Bhutan: evidence from quartz microfabrics. Tectonophysics 260, 21–43 (1996).
Wu, C. et al. Yadong cross structure and the South Tibetan Detachment in the east central Himalaya (89°-90°E). Tectonics 17, 28–45 (1998).
Vannay, J.-C. & Grasemann, B. Himalayan inverted metamorphism and syn-convergence extension as a consequence of a general shear extrusion. Geol. Mag. 138, 253–276 (2001).
Grujic, D., Hollister, L. S. & Parrish, R. R. Himalayan metamorphic sequence as an orogenic channel; insight from Bhutan. Earth Planet. Sci Lett. (in the press).
Burchfiel, B. C. et al. The South Tibetan detachment system, Himalayan orogen: Extension contemporaneous with and parallel to shortening in a collisional mountain belt. Spec. Pap. Geol. Soc. Am. 269, (1992).
Nelson, K. D. et al. Partially molten middle crust beneath southern Tibet: a synthesis of Project INDEPTH results. Science 274, 1684–1688 (1996).
Hodges, K. V. Tectonics of the Himalaya and southern Tibet from two perspectives. Geol. Soc. Am. Bull. 112, 324–350 (2000).
Willett, S. D., Beaumont, C. & Fullsack, P. Mechanical model for the tectonics of doubly vergent compressional orogens. Geology 21, 371–374 (1993).
Beaumont, C., Jamieson, R. A., Nguyen, M. H. & Lee, B. in Slave - Northern Cordillera Lithospheric Evolution (SNORCLE) and Cordilleran Tectonics Workshop (eds Cook, F. & Erdmer, P.) 112–170 (Lithoprobe Report 79, Lithoprobe Secretariat, University of British Colombia, Vancouver, 2001).
Jamieson, R. A., Beaumont, C., Nguyen, M. H. & Lee, B. Interaction of metamorphism, deformation, and exhumation in large convergent orogens. J. Metamorph. Geol. 20, 1–16 (2002).
Gleason, G. C. & Tullis, J. A flow law for dislocation creep of quartz aggregates determined with the molten salt cell. Tectonophysics 247, 1–23 (1995).
Hauck, M. L., Nelson, K. D., Brown, L. D., Zhao, W. & Ross, A. R. Crustal structure of the Himalyan orogen at ∼90° east longitude from Project INDEPTH deep reflection profiles. Tectonics 17, 481–500 (1998).
Owens, T. J. & Zandt, G. Implications of crustal property variations for models of Tibetan plateau evolution. Nature 387, 37–43 (1997).
Zeitler, P. K. et al. Crustal reworking at Nanga Parbat,: Pakistan: Metamorphic consequences of thermal-mechanical coupling facilitated by erosion. Tectonics 20, 712–718 (2001).
DeCelles, P. G. et al. Stratigraphy, structure, and tectonic evolution of the Himalayan fold-thrust belt in western Nepal. Tectonics 20, 487–509 (2001).
Lee, J. et al. Evolution of the Kangmar Dome, southern Tibet: Structural, petrologic, and thermochronologic constraints. Tectonics 19, 872–895 (2000).
White, N. M. et al. Constraints on the structural evolution, exhumation, and erosion of the High Himalayan Slab, NW India, from foreland basin deposits. Earth Planet. Sci. Lett. (in the press).
France-Lanord, C., Derry, L. & Michard, A. in Himalayan Tectonics (eds Treloar, P. J. & Searle, M. P.) 603–621 (Spec. Publ. 74, Geological Society, London, 1993).
Harrison, T. M. et al. A Late Miocene-Pliocene origin for the central Himalayan inverted metamorphism. Earth Planet. Sci. Lett. 146, E1–E7 (1997).
Parrish, R. R. & Hodges, K. V. Isotopic constraints on the age and provenance of the Lesser and Greater Himalayan sequences, Nepalese Himalaya. Geol. Soc. Am. Bull. 108, 904–911 (1996).
DeCelles, P. G., Gehrels, G. E., Quade, J., LaReau, B. & Spurlin, M. Tectonic implications of U-Pb zircon ages of the Himalayan orogenic belt in Nepal. Science 288, 497–499 (2000).
Inger, S. & Harris, N. B. W. Tectonothermal evolution of the High Himalayan Crystalline Sequence, Langtang Valley, northern Nepal. J. Metamorph. Geol. 10, 439–452 (1992).
Macfarlane, A. M. An evaluation of the inverted metamorphic gradient at Langtang National Park, central Nepal Himalaya. J. Metamorph. Geol. 13, 595–612 (1995).
Fraser, G., Worley, B. & Sandiford, M. High-precision geothermobarometry across the High Himalayan metamorphic sequence, Langtang Valley, Nepal. J. Metamorph. Geol. 18, 665–682 (2000).
Searle, M. P. et al. Shisha Pangma leucogranite, South Tibetan Himalaya: Field relations, geochemistry, age, origin, and emplacement. J. Geol. 105, 307–326 (1997).
Hodges, K. V., Parrish, R. R. & Searle, M. P. Tectonic evolution of the central Annapurna range, Nepalese Himalaya. Tectonics 15, 1264–1291 (1996).
Mackwell, S. J., Zimmerman, M. E. & Kohlstedt, D. L. High-temperature deformation of dry diabase with application to tectonics on Venus. J. Geophys. Res. 103, 975–984 (1998).
This research was funded by Lithoprobe Supporting Geoscience and NSERC Research grants to C.B. and R.A.J., and the Inco Fellowship of the Canadian Institute for Advanced Research to C.B. All the models were run using the finite element thermal-mechanical program developed by P. Fullsack. The work benefited from discussions with J. Braun, L. Brown, L. Derry, P. Fullsack, D. Grujic, D. Nelson, S. Medvedev, O. Vanderhaeghe and K. Whipple. Comments by L. Royden substantially improved the manuscript.
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Beaumont, C., Jamieson, R., Nguyen, M. et al. Himalayan tectonics explained by extrusion of a low-viscosity crustal channel coupled to focused surface denudation. Nature 414, 738–742 (2001). https://doi.org/10.1038/414738a
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