2022 Fiscal Year Final Research Report
Development of a High-precision and Convenient Method for Provenance Determination of Archaeological Stone Materials through Chemical Analysis and Mathematical Statistical Analysis
| Project/Area Number |
19K21651
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 3:History, archaeology, museology, and related fields
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| Research Institution | Shimane University |
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Principal Investigator |
Kamei Atsushi 島根大学, 学術研究院環境システム科学系, 教授 (60379691)
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| Co-Investigator(Kenkyū-buntansha) |
隅田 祥光 長崎大学, 教育学部, 准教授 (80413920)
岩本 崇 島根大学, 学術研究院人文社会科学系, 准教授 (90514290)
内藤 貫太 千葉大学, 大学院理学研究院, 教授 (80304252)
三瓶 良和 島根大学, 学術研究院環境システム科学系, 教授 (00226086)
芝 康次郎 独立行政法人国立文化財機構奈良文化財研究所, 都城発掘調査部, 研究員 (10550072)
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| Project Period (FY) |
2019-06-28 – 2023-03-31
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| Keywords | 原産地推定 / 化学分析 / 数理統計解析 / 黒曜石 / 古墳石材 / 文化財科学 |
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| Outline of Final Research Achievements |
This research presents a comprehensive methodology for estimating the origin of archaeological artifacts through a combination of chemical and mathematical analyses. Our investigation utilizes the obsidian samples obtained from southwestern Japan and Paektu Mountain and the tombstone samples distributed in the Izumo to Matsue regions. The study highlights three key findings: 1) The glass bead method employing X-ray fluorescence analysis exhibits high precision in data acquisition; 2) The application of the Chemical Index of Alteration (Nesbitt and Young, 1982) proves to be a reliable indicator for estimating tombstone weathering extent; and 3) The chemical discrimination diagrams and cluster analysis enable efficient identification of artifact provenance. Notably, the combined approach of clustering and discrimination diagrams emerges as the most effective strategy for rapid and accurate provenance determination in archaeological research.
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| Free Research Field |
地質学・岩石学・地球化学・文化財科学
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| Academic Significance and Societal Importance of the Research Achievements |
考古学的遺物の化学分析に基づく原産地推定研究に有効な解析術の開発を目的とした．化学分析値や数理解析に不慣れな研究者にも使いやすい形を心掛けている．この手法は，ここで対象とした石材に限らず，分析データを獲得して互いに比較する研究であれば何にでも応用可能である．詳細は公表論文に記している．日本の考古学界の分析研究や数理解析研究の一助になればと考える．
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