*Takanori Bessho¹, Hiroyuki Suzuki², Toshiya Yamamoto³, Tohru Danhara⁴, Hideki Iwano⁴, Takafumi Hirata⁵ (1.Department of Geosciences Osaka City University, 2.Nanki Kumano Jeopark Center, 3.Tanabe Highschool, 4.Kyoto Fissin-Track Co., Ltd., 5.Tokyo University)