| Project/Area Number |
18500774
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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 |
Cultural property science
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| Research Institution | Gangoji Research Institute of Archaeology, Cultural Anthropology, and Conservation Science |
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Principal Investigator |
YAMADA Tetsuya Gangoji Research Institute of Archaeology, Cultural Anthropology, and Conservation Science, Department of research, researcher (80261212)
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| Co-Investigator(Kenkyū-buntansha) |
TSUKAMOTO Toshio Gangoji Institute for Research of Cultural Property, Department of research, researcher (30241269)
NAKAMURA Toshio Nagoya University, Center for Chronological Research, professor (10135387)
ODA Hirotaka Nagoya University, Center for Chronological Research, assistant professor (30293690)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,980,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | radiocarbon dating / ancient iron articles / accelerator mass spectrometer / carbon / ^<14>C dating / blacksmithing / generation / charcoal / 14_C年代測定 / 加速器質量分析計 / 製錬 / 精錬 / 鍛造 / 炭素同位体 / 鍛錬鍛冶 / ^<14>C年代 |
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| Research Abstract |
We established the radiocarbon dating of ancient iron articles by accelerator mass spectrometer (AMS) method, and did that I gave the direct generation value to an iron articles with a purpose. The efficiency was good and extracted it in high purity without letting you pollute the carbon which was inherent in an iron sample and inspected the effectiveness of the radiocarbon dating of ancient iron articles.
Through a forge blacksmithing experiment, I did the ^<14>C dating by AMS of the charcoal which we used for blacksmithing experiment and the iron sample provided by the blacksmithing process. We examined a generation value afterwards. As a result, the carbon history in iron showed the generation almost same as charcoal before using it for a blacksmithing experiment. Therefore I understood that a carbon history in iron was moved by charcoal used in the case of blacksmithing.
Carbon in the ancient iron artifacts takes influence to carbon of the charcoal which I used for every each production process. And I was direct and was able to give the generation to an iron articles so that a carbon history in an iron articles was substituted for by doing the ^<14>C dating. In addition, I was able to identify the effectiveness as legitimacy of doing the ^<14>C dating of the iron articles.
However, the dispersion that exceeded a measurement error in the ^<14>C dating of the sample which I measured this time, Carbon isotope discretion produces it to some samples, some time differences were able to be considered in a ^<14>C dating of charcoal used for blacksmithing and made iron articles.
Therefore in order to raise an exact degree of the ^<14>C dating of the iron articles of the ancient times, the need that I elucidated produced these phenomena in future.
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