Japan Geoscience Union Meeting 2018

Session information

[EE] Poster

S (Solid Earth Sciences) » S-VC Volcanology

[S-VC39] Pre-eruptive magmatic processes: petrologic analyses, experimental simulations and dynamics modeling

Thu. May 24, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Michihiko Nakamura(Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University), Akihiko Tomiya(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Shanaka L de Silva (共同), Fidel Costa(Earth Observatory of Singapore, Nanynag Technological University)

Processes leading to volcanic eruptions are central and yet still enigmatic issues in volcanology. Recent advances in understanding thermo-mechanical and open-system behavior of magma reservoirs and mineral zoning stratigraphy allow us to take a step forward to reveal the complex incubation processes during volcanic dormancy and following magma chamber tapping. This session aims at putting together recent knowledge on magmatic processes including 1) magma chamber evolution through magma reintrusion, crystallization-induced volatile exolution, magma mixing and gas fluxing, 2) externally-driven eruption trigger mechanisms, and 3) conduit processes and controls on eruption styles such as outgassing, dehydration-induced crystallization, fragmentation and rheological transition of ascending magmas. We welcome contributions based on petrological, mineralogical and geochemical analyses of pyroclasts and volcanic gasses, experimental simulations of magma reservoir conditions and conduit flow dynamics, and numerical modeling to integrate the elementary processes.

*Yasuhiro Yanagida1,2, Michihiko Nakamura1, ATSUSHI YASUDA3, Takeshi Kuritani4, Mitsuhiro Nakagawa4, Takeyoshi Yoshida1 (1.Department of Earth Science Graduate School of Science Tohoku Univiersity, 2.New Energy and Industrial Development Organization, 3.Earthquake Research Institute, University of Tokyo, 4.Graduate School of Science, Hokkaido University)

*Florian Christian Gerard Brouillet1,2, Toshiaki Hasenaka3, Masataka Kawaguchi1, Tadao Nishiyama4 (1.Graduate School of Science and Technology, Kumamoto University, 2.Departement Geosciences, Université de Lorraine, France , 3.Center for Water Cycle Marine Environment and Disaster Management, Kumamoto University, 4.Faculty of Advanced Science and Technology Kumamoto University)

*Naoki Araya1, Michihiko Nakamura1, Satoshi Okumura1, Atsushi Yasuda2, Daisuke Miki3, Masato Iguchi3, Nobuo Geshi4 (1.Department of Earth Science, Graduate School of Science, Tohoku UniversityUniversity, 2.Earthquake Research Institute, University of Tokyo, 3.Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, 4.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)




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