*Ken Yamaoka¹, Simon Richard Wallis¹, Akira Miyake², Catherine Annen³ (1. The University of Tokyo, 2. Aichi University of Education, 3. Czech Academy of Sciences)

*Yuka Enomaru², Yousuke noumi¹, Yuta Tsuchiya¹ (1. Okayama University of Science, 2. Okayama University of Science Graduate School)

*Yayoi MURAOKA¹ (1. AIST)

Masashi Noguchi¹, *Atsushi Kamei², Hiromi Suzuki³, Natsuko Kobayashi⁴ (1. Oriental Consultants Co., Ltd., 2. Shimane University, 3. Noguchi Ophthalmology/Internal Medicine/Cardiovascular Medicine, 4. OYO Corporation Co., Ltd.)

*Satoshi Saito¹, Yuka TANIWAKI², Kazuya SHIMOOKA¹ (1. Department of Earth Sciences, Graduate School of Science and Engineering, Ehime University, 2. Department of Earth Sciences, Faculty of Science, Ehime University)

Takumi Takizawa², Naoki Takahashi¹, *Toshiro Takahashi¹ (1. Niigata Univ., 2. Ogata J.H.S.)

*Akitaka Shibano¹, Toshiro Takahashi¹, Jun'ichi Ohki², Naoya Iwamoto³ (1. Niigata University, 2. Natural History Museum and Institute, Chiba, 3. Choshi Geopark Promotion Council)