2010 Fiscal Year Final Research Report
Diagnosing magma head height in a volcano conduit with cosmic ray radiography and high quality gravity observation
| Project/Area Number |
20244071
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKUBO Shuhei 東京大学, 地震研究所, 教授 (30152078)
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| Co-Investigator(Kenkyū-buntansha) |
SUN Wenke 東京大学, 地震研究所, 准教授 (10323651)
TANAKA Hiroyuki 東京大学, 地震研究所, 准教授 (20503858)
TANAKA Yoshiyuki 東京大学, 地震研究所, 助教 (90508350)
TOKUNAGA Tomochika 東京大学, 大学院・新領域創成科学研究科, 准教授 (70237072)
TAMURA Yoshiaki 国立天文台, 水沢VERA観測所, 助教 (90150002)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 宇宙線透視 / 重力 / 火山 / 地下水 |
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| Research Abstract |
We developed a new method to estimate the location of a magma head in a volcano conduit. It utilizes that gravity should change as magma goes up and down in the conduit. The gravity data after eliminating groundwater disturbance enables us to determine the head height as geometrical parameters of the conduit is successfully estimated with the cosmic ray radiography. The result is essentially important to discuss how magma movement in the shallower part is related to the volcanic activity.
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Research Products
(23 results)
