JpGU Meeting 2018
Session outline| Solid Earth Sciences(S) | ||
|---|---|---|
| Session Sub-category | Volcanology | |
| Session ID | S-VC39 | |
| Title | Pre-eruptive magmatic processes: petrologic analyses, experimental simulations and dynamics modeling | |
| Short Title | Pre-eruptive magmatic processes | |
| Main Convener | Name | Michihiko Nakamura |
| Affiliation | Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University | |
| Co-Convener 1 | Name | Akihiko Tomiya |
| Affiliation | Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology | |
| Co-Convener 2 | Name | Shanaka L de Silva |
| Affiliation | Oregon State University, College of Earth, Ocean and Atmospheric Sciences | |
| Co-Convener 3 | Name | Fidel Costa |
| Affiliation | Earth Observatory of Singapore, Nanynag Technological University | |
| Session Language | EE | |
| Scope | 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. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU, AOGS, EGU | |
| Co-Sponsoring Societies (Society Members) | The Volcanological Society of Japan | |
| Invited Authors |
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| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 24 PM1 | ||||
| 13:45 - 14:15 | SVC39-01 | Wide range of magmatic processes leading to monogenetic eruptions and associated seismic unrest | Helena Albert | Abstract |
| 14:15 - 14:45 | SVC39-02 | Reconciling warm and cold storage of silicic magma: 40Ar/39Ar, U-Th disequilibria, and eruption temperatures constraints on the post-74 ka supereruption magma dynamics at Toba Caldera, Indonesia | Adonara E Mucek | Abstract |
| 14:45 - 15:00 | SVC39-03 | Pre-eruptive magmatic processes leading to Aso-4 caldera-forming eruption | Toshiaki Hasenaka | Abstract |
| 15:00 - 15:15 | SVC39-04 | Petrological monitoring of the eruptive activity since AD 2006 of Sakurajima volcano, Japan | Mitsuhiro Nakagawa | Abstract |
| Oral Presentation May 24 PM2 | ||||
| 15:30 - 15:45 | SVC39-05 | Magma plumbing system in the Yufune-2 scoria eruption, Fuji volcano-Constraints from MELTS calculations and water contents in melt inclusions- | Yuki Suzuki | Abstract |
| 15:45 - 16:00 | SVC39-06 | An EBSD study of plagioclase glomerocrysts in Aokigahara lava flow from Fuji volcano, Japan: Implication for their formation process | Hidemi Ishibashi | Abstract |
| 16:00 - 16:15 | SVC39-07 | A feedback effect of magma decompression rate on silicic volcanism induced by crystal-rich magmas | Satoshi Okumura | Abstract |
| 16:15 - 16:30 | SVC39-08 | Effects of conduit pressurization during eruption transition on crustal deformation | Tomofumi Kozono | Abstract |
| 16:30 - 16:45 | SVC39-09 | GRAIN SIZE DISTRIBUTION AND BULK DENSITY OF PUMICES FROM 1257 AD SAMALAS ERUPTION PYROCLASTIC FALL DEPOSITS | Alutsyah Luthfian | Abstract |
| 16:45 - 17:00 | SVC39-10 | Volcanic Rocks Evaluation Using Magnetic Susceptibility | Ekky Reno Priyambodo | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 24 Core Time | |||
| SVC39-P01 | Insights into the petrogenesis of Taupo Volcanic Zone basalts from U-series isotope analysis of whole rocks, groundmasses, and minerals | Georg F Zellmer | Abstract |
| SVC39-P02 | Hydrous magma differentiation in deep crust recorded in melt inclusions in hornblende-bearing cumulate xenoliths from Ichinomegata Maar, NE Japan | Yasuhiro Yanagida | Abstract |
| SVC39-P03 | Microanalytical evidence for Quaternary magma dynamics of crystal-rich and crystal-poor dacitic magma beneath Yotei Volcano, Hokkaido | Shimpei Uesawa | Abstract |
| SVC39-P04 | Pre-eruptive magmatic process of silicic monogenetic volcano inferred from amphibole phenocrysts: A case study of Izu-Kawagodaira volcano | Yukiko Suwa | Abstract |
| SVC39-P05 | Petrological characteristics of Janoo products, a Holocene scoria cone, precursory to the 4-3.3 ka basaltic events in the NW part of Aso central cones, Kyushu. | Florian Christian Gerard Brouillet | Abstract |
| SVC39-P06 | Temporal changes of magmas that caused lava dome forming eruptions in Haruna volcano in past 45,000 years | Yuki Suzuki | Abstract |
| SVC39-P07 | Pre-eruptive processes of Goshikidake pyroclastic rocks unit 4-5 deposits, Zao volcano, Japan: Zoning profiles of orthopyroxene phenocrysts | Motohiro Sato | Abstract |
| SVC39-P08 | Plagioclase-hosted melt inclusions of the 1986 eruption at Izu-Oshima volcano, Japan: Implication for pre-eruptive process | Ryoya Oida | Abstract |
| SVC39-P09 | Very shallow magma storage depths at Sakurajima Volcano revealed from melt inclusions and plagioclase-melt hygrometer | Naoki Araya | Abstract |
| SVC39-P10 | Preeruptive magmatic process inferred from compositional zoning of pyroxenes: In the case of Sakurajima volcano, Japan. | Akiko Matsumoto | Abstract |
| SVC39-P11 | Magmatic conditions prior to the 2000 eruption of Usu volcano, Japan | Akihiko Tomiya | Abstract |
| SVC39-P12 | MAGMA GENESIS OF SLAMET VOLCANO, CENTRAL JAVA, INDONESIA | Yogi Adi Prasetya | Abstract |
| SVC39-P13 | Pre-eruptive process of the 1991-1995 eruption at Unzen volcano,Japan : constraints from amphibole phenocrysts | Kurumi Iwahashi | Abstract |
| SVC39-P14 | A new formulation of viscosity-included bubble nucleation rate in ascending magmas and re-estimation of bubble number density | Mizuki Nishiwaki | Abstract |
| SVC39-P15 | Permeability measurements of heated and unheated ash erupted from Aso Volcano | Atsuko Namiki | Abstract |
| SVC39-P16 | STRATIGRAPHY RENEWAL, MAGMA CHAMBER STRATIFICATION, AND CONDUIT PROCESS OF 1815 TAMBORA ERUPTION | Indranova Suhendro | Abstract |
| SVC39-P17 | Duration-amplitude distribution of volcanic tremor at Erebus volcano, Antarctica | Mei Astrid Ardiani | Abstract |