Studies on the control parameters of the mode of volcanic eruptions
| Project/Area Number |
20510172
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | Kobe University |
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Principal Investigator |
SATO Hiroaki Kobe University, 大学院・理学研究科, 名誉教授 (60019495)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIBASHI Hidemi 東京大学, 地震研究所, 博士研究員 (70456854)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 火山噴火様式 / 噴火機構 / 結晶組織 / 脱ガス・結晶作用 / マグマ含水量 / 噴火様式 / マグマ脱ガス / マグマ粘性係数 / 富士火山 / Einstein-Roscoe式 / 集斑状斜長石 / ビンガム流体 / 猿橋溶岩流 / 溶融実験 / ガラス質溶岩流 / 粘性係数 / Temperature-Time-Transformation diagram / 溶岩ドーム噴火 / 降伏応力 / マグマ混合 |
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| Research Abstract |
We analyzed eruption products of Fuji volcano etc, to find that the eruption styles (either explosive or effusive) are mainly determined by degree of degassing in shallow chamber as well as the eruption rate in the shallowest part of the volcanic conduit. We also carried out viscosity measurements on crystal-bearing magmas of MORBs, shoshonite etc, to evaluate the effect of crystal morphologies on the relative viscosities.
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Report
(4 results)
Research Products
(50 results)
