Presentation Information

[R8P-07]Nature and timing of anatectic event of the Hida Belt (Japan): Constraints from titanite geochemistry and U-Pb age of clinopyroxene-bearing leucogranite

*Hironobu Harada1, Tatsuki Tsujimori2, Yoshiaki Kon3, Shogo Aoki4, Kazumasa Aoki5 (1. Grad. Sch. of Sci., Tohoku Univ., 2. CNEAS, Tohoku Univ., 3. AIST, 4. Akita Univ., 5. Okayama Univ. Sci.)

Keywords:

titanite,leucogranite,U–Pb age,Hida Belt

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・Clinopyroxene-bearing leucogranite of the Hida Belt contains coarse-grained titanite.
・The leucogranite occurs associated with amphibolite and marble.
・Titanite containing 'granitic' inclusions yields U–Pb age of 225.4 ± 1.9 Ma.
・Zr-in-titanite thermometry yields a high temperature (>700 °C) crystallization.
・The leucogranite was formed at a later stage of the regional metamorphism of the Hida Belt.