[S-VC48] [JJ] Hydrothermal systems of volcanoes

Thu. May 25, 2017 3:30 PM - 4:45 PM Poster Hall (International Exhibition Hall HALL7)

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.

[SVC48-P01] Review of volcanic-gas composition data in the JMA field survey reports, the1960s – 2001

*Akimichi Takagi¹, Keiichi Fukui¹, Muga Yaguchi¹ (1.Volcanology Research Department, Meteorological Research Institute)

[SVC48-P02] Measurements of gaseous elemental mercury discharge rates from soil around active craters

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

[SVC48-P03] Simplified determination method of fluoride ion in volcanic thermal water with an ion selective electrode

*KAZUKI AKIMOTO¹, Takao Oi¹, Yoshikazu Kikawada¹ (1.Sophia University)

[SVC48-P04] Geochemical characteristics of volcanic gases at Issaikyo, Azuma volcano, Japan

*Muga Yaguchi¹, Takeshi Ohba², Akimichi Takagi¹, Keiichi Fukui¹ (1.Meteorological Research Institute, JMA, 2.Department of Chemistry, School of Science, Tokai University)

[SVC48-P05] Simple estimation method for concentration of polythionate ions in Yugama, a crater lake of Kusatsu-Shirane volcano

*Shuhei Hamada¹, Yuko Hirayama¹, Takao Oi¹, Yoshikazu Kikawada¹ (1.Sophia University)

[SVC48-P06] Changes in the contents of sulfur species in Yugama, an active crater lake of Kusatsu-Shirane volcano, connected with its recent volcanic activity

*Yoshikazu Kikawada¹, Yuko Hirayama², Shuhei Hamada² (1.Faculty of Science and Technology, Sophia University, 2.Sophia University)

[SVC48-P07] The chemical composition and isotopic ratios of the volcanic gases from the Jigokudani Valley, Tateyama Volcano

*Kaori Seki¹, Takeshi Ohba², Hirochika Sumino³, Wataru Kanda¹, Muga Yaguchi⁴, Toshiya Tanbo⁵ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.Department of chemistry, School of Science, Tokia University, 3.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 4.Meteorological Research Institute, JMA, 5.Tateyama Caldera Sabo Museum, Toyama Prefecture)

[SVC48-P08] Flux measurements of carbon dioxide at Beppu geothermal area using a portable non-dispersive infrared (NDIR) gas analyzer

*Koki Ogawa¹, Tomo Shibata¹, Taketoshi Mishima¹, Keiji Takemura¹, Shinji Ohsawa¹ (1.Kyoto University)

[SVC48-P09] Assessment of Geothermal Energy Potential from Low Enthalpy Fluid at Rural Areas in El Salvador by Using Open-Source Programming Language

*CARLOS OSMIN POCASANGRE¹, Yasuhiro Fujimitsu¹ (1.Kyushu Univ.)

[SVC48-P10] Geochemical study of the Uchinomaki hot spring within Aso caldera: time series change before and after the Kumamoto Earthquake

Shun Sato¹, *Jun-ichiro Ishibashi¹, Takeshi Tsuji² (1.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University, 2.International Institute for Carbon-Neutral Energy Research, Kyushu University)

[SVC48-P11] Repeated survey of ground temperature and hot springs around Iwo-yama, Kirishima Volcanic Group (2)

*Tsuneomi Kagiyama¹, Shin Yoshikawa¹, Shinji Ohsawa¹, Taketoshi Mishima¹, Yu-Chih Huang¹ (1.Graduate School of Science, Kyoto University)

[SVC48-P12] Geomagnetic evidence for the episodic fluid intrusion associated with the 2014 unrest of Kusatsu-Shirane volcano

*Wataru Kanda¹, Yasuo Matsunaga¹, Takao Koyama² (1.School of Science, Tokyo Institute of Technology, 2.Earthquake Research Institute, University of Tokyo)

[SVC48-P13] Gravity variation measurements and numerical modeling for the hydrothermal system of the Kuju volcano

*Yasuhiro Fujimitsu¹, Jun Nishijima¹ (1.Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University)

Session information