Science in China Series D: Earth Sciences

, Volume 46, Supplement 2, pp 254–265 | Cite as

P-wave crustal velocity structure in western Sichuan and eastern Tibetan region

  • Chunyong Wang
  • Jianping Wu
  • Hai Lou
  • Mindu Zhou
  • Zhiming Bai


A deep seismic sounding profile located in the western Sichuan and eastern Tibetan region extends from Batang (Zhubalong) to Zizhong, Sichuan. It passes through the Songpan-Garzê Fold System and the Longmenshan Tectonic Zone, and ends in the Yangtze Craton. Based on the travel times of phases on the profile, incorporating information on the relevant amplitudes, we determined 2-D P-wave crustal velocity structure along the profile, analyzed the principle differences between the crustal and upper mantle structure in the Western Sichuan Plateau and Sichuan Basin, discussed the deep feature of the major faults on the profile, the tectonic relation between the Yangtze Craton and the Tibetan Plateau and the deep structural environment where strong earthquakes occurred.


Tibetan Plateau deep seismic sounding crustal and upper mantle structure low-velocity zone 


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  1. 1.
    Teng, J. W., Xiong, S. B., Yin, Z. X. et al., Characteristics of crustal structure and distribution of velocity in Northern Area of Himalaya, Acta Geophys. Sin. (in Chinese), 1983, 26: 525–540.Google Scholar
  2. 2.
    Zhu, W. Y., Cheng, Z. Y., Xiong, Y. Q. et al., Preliminary results of measuring the crustal deformation in Qinghan-Xizang areausig GPS technique, Science in China, Ser. D, 1998, 41(3): 314–318.CrossRefGoogle Scholar
  3. 3.
    Larson, K. M., Burgman, R., Bilham, R. et al., Kinematics of the India-Eurasia collision zone from GPS measurements, J. Geophys. Res., 1999, 104: 1077–1093.CrossRefGoogle Scholar
  4. 4.
    Chen, X. B., Wu, Y. Q., Du, P. S. et al., The characteristics of velocity structure on the two sides of Longmenshan Fault Zone, in Developments on the Research of Deep Structures of China’s Continent (in Chinese) (ed. Department of Scientific Monitoring, China Seismological Bureau), Beijing: Geol. Press, 1986, 97–113.Google Scholar
  5. 5.
    Cui, Z. Z., Chen, J. P., Wu, L., Joint Research of Geological Profile of Lithosphere of Altar-Taiwan: Deep Structure and Tectonics in the Crust Beneath Huashixia-Shaoyang (in Chinese), Beijing: Geological Pablishing House, 1996, 49–168.Google Scholar
  6. 6.
    Kan, R., Hu, H., Zeng, R. et al., Crustal structure of Yunnan Province, People’s Republic of China, from seismic refraction profiles, Science, 1986, 234, 433–437.CrossRefGoogle Scholar
  7. 7.
    Lin, Z. Y., Hu, H. X., Zhang, W. B. et al., Research on velocity structure of crust and upper mantle in Western Yunnan, Acta Seimologica Sinica (in Chinese), 1993, 15: 427–440.Google Scholar
  8. 8.
    Ren, J. S., Jiang, C. F., Zhang, Z. K. et al., Geotecontics and Its Evolution of China (in Chinese), Beijing: Science Press, 1980.Google Scholar
  9. 9.
    Xu, Z. Q., Hou, L. W., Wang, Z. X. et al., Orogenic Processes of the Songpan-Garzê Orogenic Belt of China (in Chinese), Beijing: Geological Publishing House, 1992, 1–60.Google Scholar
  10. 10.
    Seimological Bureau of Sichuan Province, Xianshuihe Active Fault Zone (in Chinese), Chengdu: Sichuan Sci. and Tech. Press, 1989.Google Scholar
  11. 11.
    Allen, C. R., Field study of a highly active fault zone: the Xianshuihe fault of southwestern China, Geol. Soc. Am. Bull., 1991, 103: 1178–1199.CrossRefGoogle Scholar
  12. 12.
    Gu, G. X., Catalog of Chinese Earthquakes (1831 BC-1969 AD) (in Chinese), Beijing: Science Press, 1983, 200–201.Google Scholar
  13. 13.
    Department of Seismic Hazard Prevention, China Seismological Bureau, Catalog of Destructive Earthquakes in the World (2150 BC-1991 AD)(in Chinese), Beijing: Seismological Press, 1996.Google Scholar
  14. 14.
    Xiong, S. B., Teng, J. W., Yin, Z. X. et al., Explosive research on the structure of the crust and upper mantle in southern Panxi tectonic zone, Acta Geophys. Sin. (in Chinese), 1986, 29: 235–244.Google Scholar
  15. 15.
    Cui, Z. Z., Lu, D. Y., Chen, J. P. et al., Deep structure and tectonics of the crust in Panxi region, Acta Geophys. Sin. (in Chinese), 1987, 30: 566–580.Google Scholar
  16. 16.
    Li, P., Xianshuihe-Xiaojiang Fault Zone (in Chinese), Beijing: Seismological Press, 1993, 1–50.Google Scholar
  17. 17.
    Li, L., Jin, G. Y., Electric structure of lithosphere in Panxi region, in Collection of Papers About the Panxi Rift (3) (in Chinese), Beijing: Geological Publishing House, 1988, 66–75.Google Scholar
  18. 18.
    Cerveny, V., Molotkov, I. A., Psencik, I., Ray Method in Seismology, Prague: Univerzita Karlova, 1977, 1–50.Google Scholar
  19. 19.
    Vidale, J. E., Finite-difference traveltime calculation, Bull. Seism. Soc. Am., 1988, 78: 2062–2076.Google Scholar
  20. 20.
    Hole, J. A., Nonlinear high-resolution three-dimensional seismic travel time tomography, J. Geophys. Res., 1992, 97: 6553–6562.CrossRefGoogle Scholar
  21. 21.
    Wang, C. Y., Zhang, X. K., Song, J. L. et al., Finite-difference tomography of upper crustal structure in the Dabieshan Orogenic Belt, Chinese Journal of Geophysics, 1997, 40(4): 543–550.Google Scholar
  22. 22.
    Ammon, C. J., Vidale, J. E., Tomography without rays, Bull. Seism. Soc. Am., 1993, 83: 509–528.Google Scholar
  23. 23.
    Cerveny, V., Psencik, I., SEIS83-numerical modeling of seismic wavefield in 2-D laterally varying layered structures by the ray method, in Documentation of Earthquake Algorithm (ed. Engdahl, E. R.), Boulder, Colo.: World Data Center (A) for Solid Earth Geophysics, Rep. SE-35, 1984, 36–40.Google Scholar
  24. 24.
    Wang, C. Y., Calculation of 2-D ray synthesized seismograms and explanation of seismic sounding profile of Pingliang -Weinan (in Chinese), Seismol. Res., 1985, 8: 615–626.Google Scholar
  25. 25.
    Mooney, W. D., Brocher, T. M., Coincident seismic reflection/refraction studies of the continental lithosphere, a global review, Review of Geophysics, 1987, 25: 723–742.CrossRefGoogle Scholar
  26. 26.
    Mooney, W. D., Braile, L. W., The seismic structure of the continental crust and upper mantle of North American, in The Geology of North American-An Overview (eds. Bally, A.W., Palmer, A.R.), Boulder, Colo.: Geological Society of America, 1989, 39–52.Google Scholar
  27. 27.
    Meissner, R., The Continental Crust, London: Academic Press, 1986.Google Scholar
  28. 28.
    Sun, J., Jin, G. W., Bai, D. H. et al., Sounding of the electrical structure of the crust and upper mantle along the eastern border of Qinghai-Tibet Plateau and its tectonic significance, Science in China, Ser. D, 2003, 46(Supp.): 243–253.Google Scholar
  29. 29.
    Xu, Z. Q., Yang, J. S., Jiang, M. et al., Subduction of the continent and uplift of organic belt surrounding Tibetan Plateau, Frontier ofGeosci. (in Chinese), 1999, 6(3): 139–151.Google Scholar
  30. 30.
    Meissner, R., Wever, T., Sadowiak, P., Continental collisions and seismic signature, Geophys. J. Int., 1991, 105: 15–23.CrossRefGoogle Scholar
  31. 31.
    Wang, C. Y., Mooney, W. D., Wang, X. L. et al., A study on 3-D velocity structure of upper mantle in Sichuan and Yunnan region, Acta Seismol. Sin., 2002, 15: 1–17.CrossRefGoogle Scholar
  32. 32.
    Wang, C. Y., Han, W. B., Wu, J. P. et al., Crustal structure beneath Songpan-Garzê orogenic belt, Acta Seismol. Sin., 2003, 16(3): 237–250.CrossRefGoogle Scholar
  33. 33.
    Kan, R. J., Zhang, S. C., Yan, F. T. et al., Discussion in characteristics of modern stress field and modern tectonic activity of Southwestern China, Acta Geophys. Sin. (in Chinese), 1977, 20: 96–110.Google Scholar

Copyright information

© Science in China Press 2003

Authors and Affiliations

  • Chunyong Wang
    • 1
  • Jianping Wu
    • 1
  • Hai Lou
    • 1
  • Mindu Zhou
    • 1
  • Zhiming Bai
    • 1
  1. 1.Institute of GeophysicsChina Seismological BureauBeijingChina

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