[S-VC48] Volcanic and igneous activities, and these long-term forecasting

Sun. May 22, 2016 3:30 PM - 5:00 PM Convention Hall A (2F)

Convener:*Teruki Oikawa(Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Takeshi Hasegawa(Department of Earth Sciences, College of Science, Ibaraki University), Daisuke MIURA(Geosphere Sciences, Civil Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Yoshihiro Ishizuka(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Nobuo Geshi(Geological Survey of Japan, The National Institute of Advanced Industrial Science and Technology), Chair:Koji Uno(Graduate School of Education, Okayama University), Fukashi Maeno(Earthquake Research Institute, University of Tokyo)

This session focuses on generation and accumulation processes of magmas, magma-crust interaction and degassing, and modes of eruption, long-term forecast of eruption, dispersal and emplacement of the volcanic products. The discussion spans petrological, geochemical, geophysical, and geological processes related with volcanic activity and products in the past, the present and the future.

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3:30 PM - 3:45 PM

[SVC48-15] Restudy of the eruptive history on Daisen Volcano, SW Japan

*Takahiro Yamamoto¹ (1.Geological Survey of Japan, AIST)

3:45 PM - 4:00 PM

[SVC48-16] Direction of natural remanent magnetization of rhyolite lava with clearly marked flow structure

*Koji Uno¹, Kuniyuki Furukawa², Yoko Kaneshige³ (1.Graduate School of Education, Okayama University, 2.Faculty of Business Administration, Aichi University, 3.Faculty of Education, Okayama University)

4:00 PM - 4:15 PM

[SVC48-17] Petrological characteristics of Aso-ABCD tephra which erupted before Aso-4 pyroclastic eruption

Fumiko Sugiyama¹, *Toshiaki Hasenaka¹, Atsushi Yasuda², Natsumi Hokanishi², Yasushi Mori³ (1.Graduate School of Science and Technology, Kumamoto University, 2.Earthquake Research Institute, University of Tokyo, 3.Kitakyushu Museum of Natural History and Human History)

4:15 PM - 4:30 PM

[SVC48-18] CSD (Crystal Size Distribution) analysis for plagioclase phenocrysts in historical lavas of Sakurajima volcano -The control of magma plumbing system for the eruptive style and frequency-

*Shunsuke Yamashita¹, Atsushi Toramaru² (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

4:30 PM - 4:45 PM

[SVC48-19] Tsunamis generated by the 7.3 ka catastrophic eruption at Kikai caldera, Japan: constrains from tsunami traces around the Koseda coast, NE Yakushima, Japan

*Fukashi Maeno¹, Futoshi Nanayama², Shojiro Nakagawa³, Hiroyuki Sasaki³, Masamichi Omote³, Nobuo Geshi², Kazuaki Watanabe², Hideto Naruo⁴, Tetsuo Kobayashi⁵ (1.Earthquake Research Institute, University of Tokyo, 2.Geological Survey of Japan, AIST, 3.Yakushima Earth Science Club, 4.Takeokadai High School, 5.Kagoshima University)

4:45 PM - 5:00 PM

[SVC48-20] Role of thermal boundary layer on microlite crystallization: constraints from shear-deformation experiments

Chizen Komamiya¹, *Michihiko Nakamura¹, Satoshi Okumura¹ (1.Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University)