2011 Fiscal Year Final Research Report
Calibrating the relative paleointensity standard curve.
| Project/Area Number |
21540437
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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 |
Solid earth and planetary physics
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
HASENAKA Toshiaki 熊本大学, 自然科学研究科, 教授 (50202429)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 地磁気 / 古地磁気 / 古地磁気強度 |
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| Research Abstract |
Comparison between Relative Paleomagnetic Intensity(RPI) of oceanic sediment cores and Absolute Paleomagnetic Intensity(API) of volcanic samples are conducted. The volcanic rocks used are welded tuffs which bear wide spread tephras observed in sediment cores, lava flows recording geomagnetic excursions, and lava flows at Brunhes-Matuyama boundary. The results give linear relationship of RPI and API, except for a welded tuff whose stratigraphic correlation is not well determined, and enable us the absolute value calibration of the RPI. It also indicates that the RPI is appropriate as the record of geomagnetic intensity variation.
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[Journal Article] K-Ar ages determined for post-caldera volcanic products from Aso volcano central Kyushu2012
Author(s)
Miyoshi, M., Sumino, H., Miyabuchi, Y., Shinmura, T., Mori, Y., Hasenaka, T., Furukawa, K., Uno, K., Nagao, K.
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Journal Title
J. Vol.Geoth
Pages: 64-73
Peer Reviewed
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[Journal Article] Genetic relationship between post-caldera and caldera-forming magmas from Aso volcano, SW Japan : Constraints from Sr isotope and trace element compositions2011
Author(s)
Miyoshi, M., Shibata, T., Yoshikawa, M., Sano, T., Shinmura, T., Hasenaka, T.
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Journal Title
J. Min. Pet. Sci
Volume: 106
Pages: 114-119
Peer Reviewed
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