[S-VC28] Hydrothermal systems of volcanoes

Thu. May 30, 2024 10:45 AM - 12:00 PM Convention Hall (CH-A) (International Conference Hall, Makuhari Messe)

convener:Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Wataru Kanda(Multidisciplinary Resilience Research Center, Institute of Innovative Research, Tokyo Institute of Technology), Muga Yaguchi(Meteorological Research Institute, JMA), Chairperson:Muga Yaguchi(Meteorological Research Institute, JMA), Wataru Kanda(Multidisciplinary Resilience Research Center, Institute of Innovative Research, Tokyo Institute of Technology)

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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10:45 AM - 11:00 AM

[SVC28-06] Origin and cycling process of elements in hydrothermal alteration zones: Cause of the strong acidic water in Dokuzawa mineral spring, Shimosuwa Nagano

*Ryosuke Yanagisawa¹, Koichi Sakakibara¹, Hirochika Sumino², Nanae Fukushima³, Kou Takahashi¹, Junichi Yamamoto⁴, Terumi Ejima¹ (1.Faculty of Science, Shinshu University, 2.Research Center for Advanced Science and Technology, The University of Tokyo, 3.Graduate School of Arts and Sciences, The University of Tokyo, 4.Suwa Seiryo high school, Suwa, Nagano)

11:00 AM - 11:15 AM

[SVC28-07] Dissolved polythionates in hot water pool at Mt. Iwoyama, Kirishima Volcanoes

*Yoshikazu Kikawada¹, Emily Suzuki², Natsumi Shibano², CHEN YIFAN² (1.Faculty of Science and Technology, Sophia University, 2.Graduate School of Science and Technology, Sophia University)

11:15 AM - 11:30 AM

[SVC28-08] Temporal Variation in Volcanic Gas Composition at Hakone Volcano, Japan

*Takeshi Ohba¹, Muga Yaguchi², Nozomi Numanami³, Seiya Toyoshima³ (1.Department of chemistry, School of Science, Tokia University, 2.Meteorological Res. Inst., 3.Graduate School of Science and Technology, Tokai University)

11:30 AM - 11:45 AM

[SVC28-09] Temperature Estimation of the Hydrothermal System which caused the Phreatic Eruption at Kuju Volcano in 1995 based on coupled geochemical-calorimetric analyses

*Takumi Akiyama¹, Shinji Ohsawa¹ (1.Beppu Geothermal Research Laboratory)

11:45 AM - 12:00 PM

[SVC28-10] How much fluid released during the formation of the silicious magma in the upper crust?

*Alexey Kotov¹, Noriyoshi Tsuchiya^1,2 (1.Tohoku University, Graduate School of Environmental Studies , 2.National Institute of Technology, Hachinohe College)

Session information