[S-VC31] Mechanism of volcanic eruptions

Tue. May 28, 2024 10:45 AM - 12:15 PM 103 (International Conference Hall, Makuhari Messe)

convener:Mayumi Mujin(Tohoku University), Ryo Tanaka(Hokkaido University,Institute of Seismology and Volcanology), Takafumi Maruishi(National Research Institute for Earth Science and Disaster Resilience ), Dan Muramatsu(Earthquake Reserch Institute, The University of Tokyo), Chairperson:Ryo Tanaka(Hokkaido University,Institute of Seismology and Volcanology), Takafumi Maruishi(National Research Institute for Earth Science and Disaster Resilience)

Multiple processes are involved in volcanic eruptions, including magma accumulation at depth, vesiculation and crystallization during magma ascent in volcanic conduits, and dispersion of volcanic products. We will discuss the mechanism of volcanic eruptions to elucidate these processes and understand volcanic eruption phenomena from an integrated view. We welcome contributions from geophysical and geochemical observations of active/quiet volcanoes, petrological/geochemical measurements of eruptive products, theoretical approaches, numerical simulations, laboratory experiments, and interdisciplinary studies that combine the above approaches.

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10:45 AM - 11:00 AM

[SVC31-01] Reconstruction of the pre-caldera-forming phase during the 7.3 ka eruption at the Kikai Caldera (Akahoya eruption) based on geological analyses and plume modeling

*Yusuke Haruta¹, Fukashi Maeno², Yujiro J. Suzuki² (1.Department of Earth and Planetary Science, University of Tokyo , 2.Earthquake Research Institution, University of Tokyo)

11:00 AM - 11:15 AM

[SVC31-02] Investigating the Eruption Shifting of Kikai 7.3 ka Caldera Forming Eruption: A 3D X-ray Microtomography Study of Eruption Products

*Selvia Novianti¹, Atsushi Toramaru¹ (1.Department of Earth and Planetary Science, Graduate School of Science, Kyushu University)

11:15 AM - 11:30 AM

[SVC31-03] Limited eruption condition to produce unsinkable pumice inferred from the floating pumice of Fukutoku-Oka-no-Ba 2021 eruption

*Shingo Takeuchi¹, Kosuke Ishige¹, Shimpei Uesawa¹, Yukiko Suwa² (1.Central Research Institute of Electric Power Industry, 2.CERES, Inc.)

11:30 AM - 11:45 AM

[SVC31-04] Experimental Study on the formation process of surface texture of Pele's tears

*Chinatsu Kanazawa¹, Atsushi Toramaru², Takayuki Nakatani³, Keiko Matsumoto³ (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, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

11:45 AM - 12:00 PM

[SVC31-05] Spinodal decomposition and nanocrystals in the mafic pyroclasts

*Mayumi Mujin¹, Keiko Matsumoto², Akira Miyake³, Yohei Igami³, Michihiko Nakamura¹, Akihiko Yokoo³, Mitsuhiro Yoshimoto⁴ (1.Tohoku University, 2.National Institute of Advanced Industrial Science and Technology (AIST), 3.Kyoto University, 4. Mount Fuji Research Institute, Yamanashi Prefectural Government)

12:00 PM - 12:15 PM

[SVC31-06] Rock-magnetic characterization of fine-grained Fe-Ti oxides in volcanic rocks using the coercivity-unblocking temperature diagram below 300 K

*Masahiko Sato^1,2, Mayumi Mujin³, Michihiko Nakamura³ (1.The University of Tokyo, 2.Japan Aerospace Exploration Agency, 3.Tohoku University)

Session information