Research

     ■ Evolution of arc-trench system

     ■ Dynamics of volcanic eruption

     ■ Magmatisms related to plate tectonics (arc and intraplate magmatisms)

     ■ Dynamics of magmas in magma chambers

     ■ Mechanisms of deep earthquake at subduction zones

     ■ Origin of Earth's water and global water circulation

     ■ Elemental processes controlling Earth's dynamics