J4 ›› 2012, Vol. 42 ›› Issue (2): 562-568.

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Crustal Radiogenic Heat and Mantle Geothermal Status in Tibetan Plateau Based on P-Wave Velocity

Guan Yan-wu1, Guan Ye2, Gao Rui2, Sun Xiao-hua3,Jin Xu1   

  1. 1.College of GeoExploration Science and Technology, Jilin University, Changchun130026, China;
    2.Lithosphere Research Center, Institute of Geology, Chinese Academy of Geological Sciences, Beijing100037;
    3.Economics School, Jilin University of Finance and Economics, Changchun130017, China
  • Received:2011-07-22 Online:2012-03-26 Published:2012-03-26

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Abstract:

A large amount of geophysical data of Tibetan Plateau has been accumulated since 1974 when the modern geophysical exploration about Tibetan Plateau began. P-wave velocities of 23 deep seismic sounding profiles are collected and relationship curve of crustal radiogenic heat and P-wave velocity (A-Vp) in each profile was plotted. The mantle heat flow contour map of Tibetan Plateau is drawn reference to terrestrial heat flow data sets. There is a very high mantle heat flow area on the Bangong-Nujiang suture zone，Indus-Yarlung suture and Lhasa block. It can be infered that the magma under the area is possible active.

Key words: Tibetan Plateau, crust, A-Vp, radiogenic heat, seismic compression-wave velocity, heat flow

CLC Number: 

  • P631.4
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