Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet

Xiguang Deng, Lin Ding, Xiaohan Liu, An Yin, Paul A. Kapp, Michael A. Murphy, Craig E. Manning

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

The blueschists, discovered in the Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet, consist of glaucophane, ferroglaucophane, crossite, phengite, actinolite, epidote, chlorite, calcite, sphene, rutite, etc., with the metamorphic temperature 400°C ±, and pressure 7kbar ±, which demonstrates there occurred a high pressure metamorphic belt. The 39Ar - 40Ar dating from the glaucophane yields 275 - 287Ma, which comprehends the metamorphism being related to subduction of the Paleotethyan ocean. It is thought to extend southeastwards and link up with the Lancangjiang high pressure metamorphic belt in west Yunnan, constituting a very important tectonic boundary between Gondwana and Euroasia continents.

Original languageEnglish (US)
Pages (from-to)227-232
Number of pages6
JournalScientia Geologica Sinica
Volume35
Issue number2
StatePublished - Jan 1 2000
Externally publishedYes

Keywords

  • Blueschists
  • Central Qiangtang
  • Garmar - Taoxing Co area
  • High-pressure metamorphic belt

ASJC Scopus subject areas

  • Geology

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  • Cite this

    Deng, X., Ding, L., Liu, X., Yin, A., Kapp, P. A., Murphy, M. A., & Manning, C. E. (2000). Discovery of blueschists in Gangmar-Taoxing Co area, central Qiangtang, Northern Tibet. Scientia Geologica Sinica, 35(2), 227-232.