Partially molten middle crust beneath southern Tibet: Synthesis of project INDEPTH results

K. D. Nelson, Wenjin Zhao, L. D. Brown, J. Kuo, Jinkai Che, Xianwen Liu, S. L. Klemperer, Y. Makovsky, R. Meissner, J. Mechie, R. Kind, F. Wenzel, J. Ni, J. Nabelek, Leshou Chen, Handong Tan, Wenbo Wei, A. G. Jones, J. Booker, M. UnsworthW. S.F. Kidd, M. Hauck, D. Alsdorf, A. Ross, M. Cogan, Changde Wu, E. Sandvol, M. Edwards

Research output: Contribution to journalArticlepeer-review


INDEPTH geophysical and geological observations imply that a partially molten midcrustal layer exists beneath southern Tibet. This partially molten layer has been produced by crustal thickening and behaves as a fluid on the time scale of Himalayan deformation. It is confined on the south by the structurally imbricated Indian crust underlying the Tethyan and High Himalaya and is underlain, apparently, by a stiff Indian mantle lid. The results suggest that during Neogene time the underthrusting Indian crust has acted as a plunger, displacing the molten middle crust to the north while at the same time contributing to this layer by melting and ductile flow. Viewed broadly, the Neogene evolution of the Himalaya is essentially a record of the southward extrusion of the partially molten middle crust underlying southern Tibet.

Original languageEnglish
Pages (from-to)1684-1685
Number of pages2
Issue number5293
StatePublished - 6 Dec 1996
Externally publishedYes

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