*Wiebke Heise¹、Ted Bertrand¹、Grant Caldwell¹、Yasuo Ogawa²、Stephen Bannister¹、Stewart Bennie¹、Rory Hart¹、Neville Palmer¹、 Kuo Hsuen Tseng^2,4、Masato Fukai^2,5、Masaki Ishikawa²、Kaori Seki^2,6、Tatsuji Nishizawa^2,7、Jack McGrath³ (1.GNS Science, PO Box 30368, Lower Hutt, New Zealand、2.Volcanic Fluid Research Center, Tokyo Institute of Technology, Tokyo, Japan、3. School of Earth and Environment, University of Leeds, UK、4.Sumiko Resources Exploration & Development Co., Ltd., Japan、5.Nittetsu Mining Consultants Co., Ltd., Japan、6.Kokusai Kogyo Co., Ltd.,Japan、7.Mount Fuji Research Institute, Yamanashi Prefectural Government, Japan)