Seismic Evidence for a Detached Indian Lithospheric Mantle Beneath Tibet

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Science  26 Feb 1999:
Vol. 283, Issue 5406, pp. 1306-1309
DOI: 10.1126/science.283.5406.1306

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P-to-S converted teleseismic waves recorded by temporary broadband networks across Tibet show a north-dipping interface that begins 50 kilometers north of the Zangbo suture at the depth of the Moho (80 kilometers) and extends to a depth of 200 kilometers beneath the Bangong suture. Under northern Tibet a segmented south-dipping structure was imaged. These observations suggest a different form of detachment of the Indian and Asian lithospheric mantles caused by differences in their composition and buoyancy.

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