2012 Fiscal Year Final Research Report
K-Ar dating of volcanic rocks younger than 10 ka . toward understanding of eruptive history in Quaternary volcanoes
| Project/Area Number |
22510186
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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 | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
BAN Masao 山形大学, 理学部, 教授 (50208724)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 火山 / 地質学 / 質量分析 / 放射年代測定 / 第四紀 |
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| Research Abstract |
We are tried to introduce the Cassignol-Gillot (CG) method to K-Ar dating facility in the Yamagata University, in order to date younger volcanic rocks in northeastern Japan. To achieve this, we installed the gas extraction line of the mass spectrometer; adding a variable volume for gas expansion. We confirm the procedures of sample selection and preparation for CG method. We selected suitable rock samples to test effectiveness of the CG method from Nasu-Chausudake Volcano and Iwaki Volcano to applying the CG method. K-Ar dating with CG method will be able to contribute establishing eruptive history in Quaternary volcanoes.
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