[H-RE13] Engineering Geology in Active Tectonic Regions

[HRE13-P06] Spatial variation in helium isotopes around the junction between the NE Japan and Kurile arcs

*Daichi Ichikawa¹, Miyu Hasegawa¹, Koji Umeda², Hirochika Sumino³ (1. Graduate School of Sustainable Community Studies, Hirosaki University , 2. Graduate School of Science and Technology, Hirosaki University, 3. Research Center for Advanced Science and Technology, The University of Tokyo)