Movement Features of Mantle Fluid Flows from S-wave velocity Structure of Asia
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    Abstract:

    Based on recent results of S-wave seismic tomography, we analyze of overall features of the mantle S-wave velocity structures beneath Asia, which correlate with the current movement pattern of mantle heat-flows. The study concludes that the S-wave velocity structure features of the Upper Mantle can be explained by the plate tectonics. Heat accumulation occurs beneath the lithosphere of the central Eurasia superplate. A strong negative velocity disturbance exists in the mantle below Hainan Island and South China Sea that looks very much like a mantle superplume. The movement of mantle heat-fluid flows shows two different geometrical patterns: vertically growing up or side turning. The flows belonging to these two patterns are equally important and can across into each other to construct more complicate modes.

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YangWencai, YU Changqing.2011. Movement Features of Mantle Fluid Flows from S-wave velocity Structure of Asia[J]. Acta Geologica Sinica,85(9):1399-1408

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History
  • Received:October 26,2010
  • Revised:January 05,2011
  • Adopted:January 06,2011
  • Online: September 07,2011
  • Published: