Typomorphism of the {211}-type zircon

Xiang Wang*, Wuxian Li

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A natural {211}-type zircon has been first discovered in the Pingtan gabbro in the Fujian Province, which is a new type of morphology reported inmagmatic zircons. Investigation of morphology and trace-element chemistry shows two distinct growth stages, Stage 1 and Stage 2. The {211}-type zircon is the earliest crystallized phase of Stage 1 zircon. The low Hf contents and extreme depletion in U, Th and Y indicate that Stage 1 zircon was approximately in equilibration with melt during the crystallization, so that they are regarded as crystallized phase in deeper magmatic chamber. The Zr-saturated gabbroic magma is demonstrated to be derived from mantle magmas by differentiation. The magma differentiation and zircon crystallization at the lower crust level indicate the existence of underplating of mantle magma beneath this area, which results in strong magmatic activities in the late Mesozoic.

Original languageEnglish
Pages (from-to)154-158
Number of pages5
JournalChinese Science Bulletin
Volume47
Issue number2
Publication statusPublished - 2002
Externally publishedYes

Keywords

  • Equilibrium crystallization
  • Trace elements
  • Zircon
  • {211} faces

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