Japan Geoscience Union Meeting 2022

Session information

[J] Poster

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC32] Dynamics of volcanic eruptions and their physical and chemical processes

Fri. Jun 3, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (22) (Ch.22)

convener:Masatoshi Ohashi(Earthquake Research Institute, the University of Tokyo), convener:Atsuko Namiki(Graduate School of Environmental Studies, Nagoya University), Yujiro Suzuki(Earthquake Research Institute, The University of Tokyo), convener:Naoki Araya(Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku UniversityUniversity), Chairperson:Masatoshi Ohashi(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University)

A Volcanic eruption is a hazardous phenomenon that results from a sequence of coupled processes, including storage in the subsurface and ascent to the surface. The volcanic gas exsolving from the ascending magma generates bubbles, which influence both the potential energy of the magma (density) and its resistance to flow (viscosity). Bubbles can sometimes deform and/or fragment the surrounding magma, leading up to explosive eruptions that develop volcanic plumes and/or pyroclastic flows. A broad range of approaches is required to tackle these processes and better understand the factors that govern the physics of explosive eruptions. We welcome contributions from interdisciplinary approaches, including, geophysical observations of active/quiet volcanoes, geochemical measurements of eruptive products, theoretical approaches, and numerical simulations, and laboratory experiments designed to explore the fundamental processes underlying explosive volcanism.

11:00 AM - 1:00 PM

*Tomofumi Kozono1, Hidemi Ishibashi2, Satoshi Okumura3, Takahiro Miwa4 (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Department of Geoscience, Faculty of Science, Shizuoka University, 3.Department of Earth Science, Graduate School of Science, Tohoku University, 4.National Research Institute for Earth Science and Disaster Resilience)

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