[S-VC49] Hydrothermal systems of volcanoes

Mon. May 25, 2015 2:15 PM - 4:00 PM 102B (1F)

Convener:*Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Tsuneomi Kagiyama(Graduate School of Science, Kyoto University), Takeshi Ohba(Department of chemistry, School of Science, Tokia University), Chair:Yasuhiro Fujimitsu(Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University), Shogo Komori(National Institute of Advanced Industrial Science and 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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2:15 PM - 2:30 PM

[SVC49-01] Geostatistical analysis of VLF-MT resistivity data at the Tatun Volcano Group, Taiwan

*Shogo KOMORI¹, Tsuneomi KAGIYAMA², 3 (1.GSJ,AIST, 2.Graduate School of Science, Kyoto Univ., 3.IES, Academia Sinica)

2:30 PM - 2:45 PM

[SVC49-02] Hydrothermal system beneath the Jigokudani valley, Tateyama volcano, inferred from AMT surveys and hot spring chemistry

*Kaori SEKI¹, Wataru KANDA², Toshiya TANBO³, Yasuo OGAWA², Shinichi TAKAKURA⁴, Masashi USHIODA², Atsushi SUZUKI¹, Zenshiro SAITO¹, Yasuo MATSUNAGA¹ (1.Tokyo Institute of Technology, 2.Volcanic Fluid Research Center, 3.Tateyama Caldera and Sabo Museum, 4.National Institute of Advanced Industrial Science and Technology)

2:45 PM - 3:00 PM

[SVC49-03] Hydrothermal system around the active crater of Aso volcano inferred from a three-dimensional resistivity structure

*Wataru KANDA¹, Mitsuru UTSUGI², Shinichi TAKAKURA³, Hiroyuki INOUE², Yasuo OGAWA¹ (1.Volcanic Fluid Research Center, Tokyo Institute of Technology, 2.Aso Volcanological Laboratory, Grad. Sch. Sci., Kyoto University, 3.National Institute of Advanced Industrial Science and Technology (AIST))

3:00 PM - 3:15 PM

[SVC49-04] Time variation in the chemical and isotopic composition of fumarolic gases at Hakone volcano, Japan

*Takeshi OHBA¹, Ryou AOKI¹, Taisei SHIGEMURA¹, Masakazu SAGO¹, Yasushi DAITA², Lin CHENG³, Kosuke IKEYA³, Urumu TSUNOGAI³ (1.Dep. Chem. School Sci. Tokai Univ., 2.Hot Spring Res. Inst. Kanagawa Pref., 3.Grad. School Environ. Studies Nagoya Univ.)

3:15 PM - 3:30 PM

[SVC49-05] Volcanic plume measurements of Ontake volcano by unmanned aerial vehicle (UAV)

*Toshiya MORI¹, Takeshi HASHIMOTO², Akihiko TERADA³, Hiroshi SHINOHARA⁴, Ryunosuke KAZAHAYA⁴, Mitsuhiro YOSHIMOTO⁵, Ryo TANAKA² (1.Laboratory for Earthquake Chemistry, Graduate School of Science, the Univesity of Tokyo, 2.Graduate School of Science, Hokkaido University, 3.Volcanic Fluid Research Center, Tokyo Institute of Technology, 4.Geological Survey of Japan, AIST, 5.Mount Fuji Research Institute, Yamanashi Prefectural Government)

3:30 PM - 3:45 PM

[SVC49-06] Case study of the behavior of isotope in several hot-spring and geothermal field part2

*Norio YANAGISAWA¹ (1.Institute for Geo-resources and Environment, AIST)

3:45 PM - 4:00 PM

[SVC49-07] Numerical modeling for a broad geothermal system of Kuju Volcano

*Yasuhiro FUJIMITSU¹, Yohei ITO², Jun NISHIJIMA¹, Daisuke OKA³ (1.Faculty of Engineering, Kyushu University, 2.Graduate School of Engineering, Kyushu University, 3.Geological Survey of Hokkaido, Hokkaido Research Organization)