2012 Fiscal Year Final Research Report
High-precision calibration curve for radiocarbon dating by Japanese tree rings.
| Project/Area Number |
21240072
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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 |
Cultural property science
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| Research Institution | National Museum of Japanese History |
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Principal Investigator |
SAKAMOTO Minoru 国立歴史民俗博物館, 研究部, 准教授 (60270401)
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| Co-Investigator(Kenkyū-buntansha) |
OOKOUCHI Takayuki 奈良文化財研究所, 埋蔵文化財センター, 主任研究員 (50372181)
MITSUTANI Takumi 奈良文化財研究所, 埋蔵文化財センター, 客員研究員 (90099961)
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| Co-Investigator(Renkei-kenkyūsha) |
IMAMURA Mineo 国立歴史民俗博物館, 名誉教授 (10011701)
OZAKI Hiromasa 東京大学, 総合研究博物館, 特任研究員 (20399265)
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| Research Collaborator |
MAKATSUKA Takeshi 名古屋大学, 環境学研究科, 教授 (60242880)
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| Project Period (FY) |
2009 – 2012
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| Keywords | 炭素14年代 / 年輪年代 / 較正年代 / AMS / δ18O値 / 地域効果 |
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| Research Abstract |
Radiocarbon measurements of Japanese tree rings from Yayoi to Kofun period were carried out to establish Japanese calibration curve for precise dating. Although the attempt was not successful for the spatial variation of 14C concentration of atmosphere, the 14C anomalies appeared in the tree ring of Eastern Asia were in good agreement of the shape of IntCal representing the 14C variation of North hemisphere. This may suggest the global atmospheric change affects the regional offset of Japanese calibration curve.
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