title: Seismic images of crust and upper mantle beneath Tibet: evidence for Eurasian plate subduction.
abstract: Seismic data from central Tibet have been combined to image the subsurface structure and understand the evolution of the collision of India and Eurasia. The 410- and 660-kilometer mantle discontinuities are sharply defined, implying a lack of a subducting slab beneath the plateau. The discontinuities appear slightly deeper beneath northern Tibet, implying that the average temperature of the mantle above the transition zone is about 300 degrees C hotter in the north than in the south. There is a prominent south-dipping converter in the uppermost mantle beneath northern Tibet that might represent the top of the Eurasian mantle lithosphere underthrusting the northern margin of the plateau.
authors.affiliation: GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany. kind@gfz-potsdam.de
authors.forename: R
authors.initials: R
authors.lastname: Kind
authors.forename: X
authors.initials: X
authors.lastname: Yuan
authors.forename: J
authors.initials: J
authors.lastname: Saul
authors.forename: D
authors.initials: D
authors.lastname: Nelson
authors.forename: S V
authors.initials: SV
authors.lastname: Sobolev
authors.forename: J
authors.initials: J
authors.lastname: Mechie
authors.forename: W
authors.initials: W
authors.lastname: Zhao
authors.forename: G
authors.initials: G
authors.lastname: Kosarev
authors.forename: J
authors.initials: J
authors.lastname: Ni
authors.forename: U
authors.initials: U
authors.lastname: Achauer
authors.forename: M
authors.initials: M
authors.lastname: Jiang