[S-VC36] Volcanic and igneous activities, and these long-term forecasting

[SVC36-P04] Geological and petrological study on the debris avalanche deposits, eastern foot of Zao Volcano, northeast Japan

*Masao Ban¹, Fumito Otomo¹, Motohiro Sato², Takumi Imura¹ (1. Department of Science, Faculty of Science, Yamagata University, 2. Sabo and Landslide Technical Center)

Keywords:Debris avalanche, Volcanic edifice collapse, Block facies, Matrix facies, Volcanic disaster, Zao Volcano