Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet

Xi Guang Deng, Lin Ding, Xiao Han Liu, An Yin, Paul A Kapp, Michael A. Murphy, Craig E. Manning

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Blueschists are considered the mark of plate tectonic boundary in the Gangmar-Taoxing Co area, central Qiangtang, Tibet. Based on geochemical characteristics of major, trace and rare earth elements and the geochemical diagram, the protolith of blueschists belongs to alkali basalt that is a skin to intraplate ocean island basalts, and formed on seamount-like structures under an intraplate plume. Together with the geological features, it shows that it presents a Palaeo-Tethyan ocean in the central Qiangtang area. Therefore, the area may represent the boundary between Gondwana and Laurasia continents during the Late Paleozoic period.

Original languageEnglish (US)
Pages (from-to)517-525
Number of pages9
JournalActa Petrologica Sinica
Volume18
Issue number4
StatePublished - 2002
Externally publishedYes

Keywords

  • Blueschist
  • Geochemical characteristics
  • Oceanic island alkali basalt
  • Palaeo-Tethyan ocean
  • Tibet

ASJC Scopus subject areas

  • Geology

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  • Cite this

    Deng, X. G., Ding, L., Liu, X. H., Yin, A., Kapp, P. A., Murphy, M. A., & Manning, C. E. (2002). Geochemical characteristics of blueschist and its tectonic significance in the central Qiangtang area, Tibet. Acta Petrologica Sinica, 18(4), 517-525.