2010 Fiscal Year Final Research Report
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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| 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 |
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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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