Advertisement

Collision and thermal history of Indian-Sundaland-Eurasian plates as implicated by40Ar/39Ar age spectra of granodiorites

  • Dai Tongmo
  • Zhu Bingquan
  • Zhang Yuquan
  • Pu Zhiping
  • Zhang Qianfeng
  • Hong Ashi
Article

Abstract

40Ar/39Ar plateau ages of biotite, plagioclase, K-feldspar and hornblende from the Biluoxueshan and Lincang plutons in the three-river area of Yunnan and the Quxu pluton in the Gandise belt of Xizang indicate that the three plutons were emplaced at 420, 234 and 43.4 Ma, respectively. Based on the study of closure temperatures and thermal histories, it is shown that the Lincang and Biluoxueshan plutons experienced the same thermodynamic event during 85–90 Ma, temporally representing the collision between the Sundaland and Eurasian plates, and that the Quxu pluton was uplifted at a much faster rate during 40–44 Ma(2.6 mm/a), marking the collision between the Indian and Eurasian plates.

Keywords

Eurasian Plate Closure Temperature Rich Phase South China Plate Thermodynamic Event 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Reference

  1. [1]
    Powell, CM.et al., Tectonophysics, 63(1980), 91–109.CrossRefGoogle Scholar
  2. [2]
    Sengör, A.M.C.,Proceedings of Symposium on Qinghai-Xizang Plateau, Science Press, Beijing, 1(1981), 51–56.Google Scholar
  3. [3]
    Burke, K.et al., Proceedings of Symposium on Qinghai-Xizang Plateau, Science Press, Beijing, 1(1981), 743–746.Google Scholar
  4. [4]
    Zhu, B.Q.et al., Earth Planet. Sci. Lett., 65(1983), 263–275.CrossRefGoogle Scholar
  5. [5]
    Dodson, M.H.,Contrib. Mineral. Petrol, 40(1973), 259–274.CrossRefGoogle Scholar
  6. [6]
    York, D.,Earth Planet. Sci. Lett., 39(1978), 89–93.CrossRefGoogle Scholar
  7. [7]
    Dai Tongmoet al., Geochimica, 1(1982), 48–55.Google Scholar
  8. [8]
    Lanphere, M.A.et al., Earth Planet. Sci. Lett., 32(1976), 141–148.CrossRefGoogle Scholar
  9. [9]
    Schärer, U.et al., Earth Planet. Sci. Lett., 69(1984), 311–320.CrossRefGoogle Scholar
  10. [10]
    Maluski, H.et al., Nature, 298(1982), 152–154.CrossRefGoogle Scholar
  11. [11]
    Wang, J.W.et al., Proceedings of Symposium on Qinghai-Xizang Plateau, 1(1981), 515–520.Google Scholar

Copyright information

© Institute of Geochemistry, Chinese Academy of Sciences 1987

Authors and Affiliations

  • Dai Tongmo
    • 1
  • Zhu Bingquan
    • 1
  • Zhang Yuquan
    • 1
  • Pu Zhiping
    • 1
  • Zhang Qianfeng
    • 1
  • Hong Ashi
    • 1
  1. 1.Institute of GeochemistryAcademia SinicaUSA

Personalised recommendations