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      Underplating in the Himalaya-Tibet collision zone revealed by the Hi-CLIMB experiment.

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          Abstract

          We studied the formation of the Himalayan mountain range and the Tibetan Plateau by investigating their lithospheric structure. Using an 800-kilometer-long, densely spaced seismic array, we have constructed an image of the crust and upper mantle beneath the Himalayas and the southern Tibetan Plateau. The image reveals in a continuous fashion the Main Himalayan thrust fault as it extends from a shallow depth under Nepal to the mid-crust under southern Tibet. Indian crust can be traced to 31 degrees N. The crust/mantle interface beneath Tibet is anisotropic, indicating shearing during its formation. The dipping mantle fabric suggests that the Indian mantle is subducting in a diffuse fashion along several evolving subparallel structures.

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          Author and article information

          Journal
          Science
          Science (New York, N.Y.)
          1095-9203
          0036-8075
          Sep 11 2009
          : 325
          : 5946
          Affiliations
          [1 ] College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA. nabelek@coas.oregonstate.edu
          Article
          325/5946/1371
          10.1126/science.1167719
          19745147
          b4ef8aaf-a136-4c73-b9f6-c5d0becf2d1a
          History

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