[S-VC44] Hydrothermal systems of volcanoes

convener:Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Wataru Kanda(Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology), Takeshi Ohba(Department of chemistry, School of Science, Tokia University)

There is a diversity of hydrothermal systems between magmas and the ground surface in various geoscientific environments. Understanding of the hydrothermal systems contributes to understanding of the earth systems, and is essential for utilization of geothermal energy and prediction of volcanic eruption. In this session, we will discuss the topics on subsurface structures and heat and fluid flows of "hydrothermal systems of volcanoes" from the perspectives of geophysics, geochemistry, geology and geothermal reservoir engineering. Any research approaches, theoretical, observational and experimental, are welcome.

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[SVC44-01] High-frequency sampling of a volcanic hot spring water discharged from Bengara thermal spring of Tokachidake volcano, Japan

*Takato Ono¹, Toshiya Mori¹, Ryo Takahashi² (1.Geochemical Research Center, Graduate School of Science, The University of Tokyo, 2.Geological Survey of Hokkaido, Hokkaido Research Organization)

[SVC44-02] Volcanic supply processes at Tokachidake volcano deduced from geochemical studies of fumarolic activity

*Hiroshi Shinohara¹, Ryunosuke KAZAHAYA¹, Masaaki Morita¹, Kaori Seki¹ (1.Geological Survey of Japan, AIST)

Cancelled

[SVC44-03] The temperature of hydrothermal system beneath of Owakudani in Hakone Volcano

*Kaori Seki¹, Hiroshi Shinohara¹, Kazutaka Mannen² (1.Geological Survey of Japan, AIST, 2.Hot Springs Research Institute of Kanagawa Prefecture)

[SVC44-04] Transformation of arsenic phase and detection of monothioarsenate in the hydrothermal water from Iwo-Yama , Kirishima volcanoes

*Keigo Mori¹, Harue Masuda¹, Jun-ichiro Ishibashi², Takeshi Matsushima², Katsunori Yanagawa³, Syogo Oshima⁴, Yasuhisa Tajima⁵, REO IKAWA⁶ (1.Osaka City University, 2.Kyushu University, 3.The University of Kitakyushu, 4.West Japan Engineering Consultants, Inc, 5.Nippon Koei Co., Ltd, 6.AIST)

[SVC44-05] Geological and geochemical characteristics of acidic wells in Hatchobaru geothermal field, Oita, Japan

*Saki Tsutsumi¹, Yumi Kiyota¹, Koji Matsuda¹, Yoshio Soeda¹, Shogo Oshima¹, Sachihiro Taguchi², Yasumoto Tsukada³ (1.West Japan Engineering Consultants, Inc.,, 2.Fukuoka University, 3.Japan Oil, Gas and Metals National Corporation(JOGMEC))

[SVC44-06] Resolving the plumbing system in Yellowstone National Park with electromagnetic, magnetic and geochemical data

*Carol Finn¹, Paul A Bedrosian¹, R. Blaine McCleskey¹, JoAnn Holloway¹, W. Steven Holbrook², Esben Auken³ (1.USGS, 2.Virginia Technical University, 3.Aarhus University)