[S-VC34] Connecting magma dynamics in vent-conduit system with surface expression of volcanic eruption

2019年5月30日(木) 10:45 〜 12:15 A07 (東京ベイ幕張ホール)

コンビーナ:三輪学央(防災科学技術研究所)、下司信夫(産業技術総合研究所　活断層・火山研究部門)、座長:下司信夫(産総研　活断層・火山研究部門)、Adrian Hornby(Ludwig-Maximilians-University Munich)

Magma dynamics within a shallow conduit system control the diversity of behavior of volcanic eruptions. Recent advancements in geophysical, airborne and ground-based observation techniques provide quantitative data about the dynamic behavior of volcanic eruptions. New analytical methods of the macro and microtextures of eruptive products also open new insights on detailed dynamics of magmas within conduit. The aim of this session is the integration of these new techniques to approach the dynamics of magma ascending from a shallow part of conduit to vent. This session seeks submissions that explore magma dynamics controlling the behaviors of volcanic eruption by integrated investigation of 1) degassing, outgassing, crystallization, and fragmentation of ascending magma, 2) emission and recycling of eruptive product, and 3) morphological characterization of the vent-conduit system. We encourage contributions based on textural-petrological analyses of eruptive product, experimental study reproducing magma in the conduit, geophysical observation on surface expression of volcanic eruption, and related numerical modeling.

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10:45 〜 11:00

[SVC34-07] The in-flight grain size distribution of lapilli and bombs from Strombolian explosions

*Jacopo Taddeucci¹、Piergiorgio Scarlato¹、Elisabetta Del Bello¹、Tullio Ricci¹、Ulrich Kueppers²、Bruce Houghton³ (1.Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy、2.Department of Earth and Environmental Sciences. Ludwig-Maximilians-Universität (LMU). Munich, Germany、3.Department of Earth Sciences, University of Hawai‘i at Mānoa, Honolulu, USA)

11:00 〜 11:15

[SVC34-08] Pyrrotite oxidation as a proxy for air entrainment in eruption columns

*松本恵子¹、中村美千彦² (1.産業技術総合研究所地質調査総合センター、2.東北大学大学院理学研究科)

11:15 〜 11:30

[SVC34-09] Thermal signals in volcano monitoring: combining MODIS-MIROVA data with ground-based measurements at Aso Volcano, Japan

*Corrado CIGOLINI¹、Akihiko Yokoo²、Diego Coppola¹、Marco Laiolo¹ (1.Department of Earth Sciences, University of Torino, Italy、2.Aso Volcanological Laboratory, Institute for Geothermal Sciences, Kyoto University, Japan)

11:30 〜 11:45

[SVC34-10] Magma transfer processes in the NE Japan arc: insights from crustal ambient noise tomography combined with volcanic eruption records

*Georg F Zellmer¹、Kai-Xun Chen²、Yuancheng Gung²、Ban-Yuan Kuo³、Takeyoshi Yoshida⁴ (1.Massey University, Palmerston North, New Zealand、2.National Taiwan University, Taipei, Taiwan、3.Academia Sinica, Taipei, Taiwan、4.Tohoku University, Sendai, Japan)

11:45 〜 12:00

[SVC34-11] STRATIGRAPHY RENEWAL, MAGMA CHAMBER STRATIFICATION, AND CONDUIT PROCESS OF THE 1815 TAMBORA CALDERA FORMING ERUPTION

*Indranova Suhendro¹、Atsushi Toramaru¹、Yasuo Miyabuchi²、Tomoharu Miyamoto¹ (1.Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, Japan、2.Faculty of Advanced Science and Technology, Kumamoto University, Kurokami 2-40-1, Chuo-ku, Kumamoto 860-8555, Japan)

Discussion (12:00 〜 12:15)

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