2022 Fiscal Year Final Research Report
Elucidation on marriage system including the movement of the person using the fluorine analysis of teeth
Project/Area Number |
19K21657
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 3:History, archaeology, museology, and related fields
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Research Institution | Tohoku University of Art and Design |
Principal Investigator |
Aono Tomoya 東北芸術工科大学, 芸術学部, 准教授 (60620896)
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Co-Investigator(Kenkyū-buntansha) |
吉村 和久 九州大学, アイソトープ統合安全管理センター(伊都地区), 学術共同研究員 (80112291)
米田 穣 東京大学, 総合研究博物館, 教授 (30280712)
澤田 純明 新潟医療福祉大学, リハビリテーション学部, 准教授 (10374943)
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Project Period (FY) |
2019-06-28 – 2023-03-31
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Keywords | 歯牙フッ素分析 / 湧水 / 水素・酸素同位体比 / 古病理分析 / 先史時代の人の移動 / 婚姻システム / 縄文時代 / 先史社会 |
Outline of Final Research Achievements |
In humans, because enamel in permanent teeth is formed during infancy and childhood, diets consumed during these life stages can give rise to differences in fluorine concentration in teeth. By utilizing such differences in fluorine concentration, we aim to investigate whether the place where people were born and raised differs from where they were buried, to gain insight into human migration and marriage systems. We used bones of Jomon people excavated from archeological sites in Hokkaido and Aichi Prefectures, northern and central parts of Japan. First, we confirmed presence of regional differences in fluorine concentration based on measurements of water samples obtained from springs around each site where the bones were discovered. Then, about 1 mg of enamel sample was collected from the distobuccal side of the right lower second premolar of each individual and its fluorine concentration measured.
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Free Research Field |
骨考古学
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Academic Significance and Societal Importance of the Research Achievements |
本研究で開発した歯牙フッ素分析法は、先史時代人の移動と婚姻システムの解明に有用である。特徴は、適用可能な地質条件が世界各地にあることと、わずかな量(1mg)の分析試料と簡便な分析方法(イオンストマトグラフ法)である点にある。また、分析に用いる歯のエナメル質は人体の中で最も堅牢なため、残存しやすく、サンプル数を多くして信頼できるデータを得ることができる。歯牙フッ素分析が先史人類の社会構造の変遷を把握する新たな考古学・人類学的手法となることは学術的な意義を有している。
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