[S-VC38] Active Volcanism

Wed. May 29, 2019 1:45 PM - 3:15 PM IC (2F)

convener:Yuta Maeda(Nagoya University), Takahiro Miwa(National research institute for earth science and disaster prevention), Takeshi Nishimura(Department of Geophysics, Graduate School of Science, Tohoku University), Chairperson:Takeshi Ohba, Akihiko Terada

This session discusses various aspects of active volcanisms including, but not limited to, recent and historical eruptions, various phenomena associated with the volcanic activities, underground structures of the volcanoes, and developments of new instruments based on geophysical, geochemical, geological, and multidiscipline approaches. We also welcome studies on understanding and predicting the transitions of the eruptive activities from observational, theoretical, and experimental approaches.

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1:45 PM - 2:00 PM

[SVC38-36] Time variation in the chemical and isotopic composition of fumarolic gases at Hakone volcano Japan

*Takeshi Ohba¹, Muga Yaguchi², Kana NISHINO¹, Nozomi Numanami¹, Yasushi DAITA³, Urumu Tsunogai⁴, Masanori Ito⁴, Chiho Sukigara⁴ (1.Department of chemistry, School of Science, Tokia University, 2.Meteorological Research Institute, JMA, 3.Kanagawa Environmental Research Center, 4.Nagoya University Graduate School of Environmental Studies)

2:00 PM - 2:15 PM

[SVC38-37] Chemical and isotopic composition of volcanic gases at Mt Kirishima Iwoyama, Japan

*Takeshi Ohba¹, Muga Yaguchi², Kotaro Toyama³, Hirochika Sumino³, Urumu Tsunogai⁴, Masanori Ito⁴, Ryo Shingubara⁴ (1.Department of chemistry, School of Science, Tokia University, 2.Meteorological Research Institute, 3.The University of Tokyo Graduate School of Arts and Sciences Department of Basic Science, 4.Nagoya University Graduate School of Environmental Studies)

2:15 PM - 2:30 PM

[SVC38-38] Temporal and spatial variations of helium isotope ratios in volcanic gases in Kirishima volcanic group, Japan

*Kotaro Toyama¹, Hirochika Sumino¹, Kaori Kawana¹, Takeshi Ohba², Muga Yaguchi³, Yoshihide Akiyama¹, Koki Aizawa⁴, Kaori Tsukamoto⁴ (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Department of chemistry, School of Science, Tokia University, 3.Meteorological Research Institute, 4.Institute of Seismology and Volcanology, Faculty of Science, Kyushu University)

2:30 PM - 2:45 PM

[SVC38-39] Emission regions of gaseous elemental mercury around Yugama crater lake at Kusatsu-Shirane volcano, Japan

*Akihiko Terada¹, Noriaki Mizutani¹ (1.Volcanic Fluid Research Center, Faculty of Science, Tokyo Institute of Technology)

2:45 PM - 3:00 PM

[SVC38-40] Magnetotelluric images of Kusatsu-Shirane volcano, revisited by 3-D modeling with tetrahedral elements considered topography effect

*Kuo Hsuan Tseng¹, Yasuo Ogawa¹, Nurhassan .², Sabri Bulent Tank³, Akihiko Terada¹, Wataru Kanda¹, Masato Fukai¹ (1.Tokyo Institute of Technology, 2.Bandung Institute of Technology, Indonesia, 3.Bogazici University, Turkey)

3:00 PM - 3:15 PM

[SVC38-41] Magma conduit and associated hydrothermal systems of Aso volcano as revealed by broadband magnetotelluric data

*Nobuo Matsushima¹, Mitsuru Utsugi², Shinichi Takakura¹, Tadashi Yamasaki¹, Maki Hata³, Takeshi Hashimoto⁴, Makoto Uyeshima³ (1.Geological Survey of Japan,AIST, 2.Kyoto University, 3.The University of Tokyo, 4.Hokkaido University)

Session information