日本地球惑星科学連合2018年大会

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[EE] 口頭発表

セッション記号 S (固体地球科学) » S-VC 火山学

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

2018年5月24日(木) 13:45 〜 15:15 A08 (東京ベイ幕張ホール)

コンビーナ:中村 美千彦(東北大学大学院理学研究科地学専攻地球惑星物質科学講座)、東宮 昭彦(産業技術総合研究所地質調査総合センター)、Shanaka L de Silva (共同)、Costa Fidel(Earth Observatory of Singapore, Nanynag Technological University)、座長:中村 美千彦de Silva Shanaka

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.

14:15 〜 14:45

*Adonara E Mucek1Shanaka de Silva1Daniel Miggins1Martin Danišík2Axel Schmitt3Indyo Pratomo4 (1.College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, USA、2.John de Laeter CoE, Curtin University, Perth, Australia、3.Institute of Earth Sciences, Ruprecht-Karls-Universität Heidelberg、4.Geological Agency of Indonesia, Bandung, Indonesia)

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