[S-VC46] Dynamics of volcanic eruptions and igneous activities

Sun. May 24, 2015 4:15 PM - 6:00 PM 304 (3F)

Convener:*Tomofumi Kozono(Department of Geophysics, Graduate School of Science, Tohoku University), Yujiro Suzuki(Earthquake Research Institute, The University of Tokyo), Satoshi Okumura(Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University), Chair:Yujiro Suzuki(Earthquake Research Institute, The University of Tokyo)

This session discusses the dynamics of volcanic and igneous activities such as magma accumulation, magma ascent in volcanic conduits, and dispersion of volcanic products. In order to understand such multi-scale phenomena, the researches of microscopic and macroscopic scales and the techniques that combine the different scales are required. We aim to discuss the latest approaches based on the recent observations, laboratory experiments and numerical simulations, from the viewpoint of cross-cutting research.

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4:15 PM - 4:30 PM

[SVC46-01] A petrological test of the earthquake-trigger model of the Mt. Fuji Hoei eruption

*Takafumi ARUGA¹, Michihiko NAKAMURA¹, Satoshi OKUMURA¹, Mitsuhiro YOSHIMOTO² (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.Mount Fuji Research Institute, Yamanashi Prefectural Government)

4:30 PM - 4:45 PM

[SVC46-02] Evaluation of elastostatic effects of large earthquakes on the dike system around Mt. Fuji

*Masaki HOSONO¹, Yuta MITSUI², Hidemi ISHIBASHI² (1.Faculty of Science, Shizuoka University, 2.Institute of Geosciences, Shizuoka University)

4:45 PM - 5:00 PM

[SVC46-03] Magma ascent process during the late stage of Fuji 1707 eruption; constraints from plagioclase microlite

*Yamato AMANO¹, Hidemi ISHIBASHI¹, Natsumi HOKANISHI², Atsushi YASUDA² (1.Guraduate School of Science, Shizuoka university, 2.Earthquake Research Institute, University of Tokyo)

5:00 PM - 5:15 PM

[SVC46-04] Recycling of pyroclasts controls style of small basaltic explosion at Stromboli Volcano, Italy

*Takahiro MIWA¹, Ryohei KAWAGUCHI¹, Takeshi NISHIMURA², Hiroshi AOYAMA³, Taishi YAMADA³, Eisuke FUJITA¹ (1.NIED, 2.Tohoku Univ, 3.Hokkaido Univ)

5:15 PM - 5:30 PM

[SVC46-05] Spatio-temporal changes of magma pressure in the conduit at Stromboli as inferred from analyses of tilt records

*Ryohei KAWAGUCHI¹, Takeshi NISHIMURA², Hiroshi AOYAMA³, Taishi YAMADA³, Takahiro MIWA¹, Eisuke FUJITA¹, Riccardo Genco⁴, Giorgio Lacanna⁴, Maurizio Ripepe⁴ (1.NIED, 2.Science, Tohoku Univ., 3.Science, Hokkaido Univ., 4.Firenze Univ.)

5:30 PM - 5:45 PM

[SVC46-06] Plinian eruptions without precursory basalt injection: Case study of the Sakurajima historic eruptions

*Naoki ARAYA¹, Michihiko NAKAMURA¹, Satoshi OKUMURA¹ (1.Department of Earth Science, Graduate School of Science, Tohoku University)

5:45 PM - 6:00 PM

[SVC46-07] Estimation of surface tension of lava from lava stalactite and lava stalagmite appeared in lava tube cave and tree mold

*Tsutomu HONDA¹ (1.NPO Vulcano-Speleological Society)