Lithium-zoning in hydrothermal zircons from Osayama jadeitite: A clue to understanding subduction-zone fluids

DOI

Bibliographic Information

Other Title
  • 大佐山ひすい輝石岩の熱水性ジルコンのリチウム濃度累帯構造：沈み込み帯流体の実像を探る

Abstract

Trace elements distributions of hydrothermal zircons (523 ± 1.8 Ma) from Osayama jadeitite were determined using a LA-ICPQMS. Zircon with ossilatory growth texture contains up to 30-70 μ/μg [Li], showing systematic element coupling with Y, Nb, U, Pb,Th, Ce and HREEs. [Li] doesn't correlate to Ti. Considering trace elements partitioning coefficients between zircon and hydrothermal fluid, a jadeitite-forming fluid in equilibrium with the hydrothermal zircon had very high [Li], which was at least one magnitude order higher than inferred subduction zone fluids in the literature.

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Details 詳細情報について

  • CRID
    1390565134816705536
  • NII Article ID
    130007786070
  • DOI
    10.14824/jakoka.2018.0_184
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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