T4[Topic] Metamorphic rocks and tectonics

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[T4-O-12] Muscovite forming in an environment with high ambient argon concentrations during Abukuma low P/T type of metamorphism, NE Japan

*Tetsumaru Itaya¹ (1. Hiruzen Institute for Geology & Chronology)

Keywords:

Abukuma metamorphic belt,NE Japan,Low P/T type of metamorphism,K-Ar ages of biotite & muscovite,high non-radiogenic Ar content