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Radiocarbon measurement of annual tree-ring to clarify regional effect and fine structure on calibration curve

Research Project

Project/Area Number 18H03594
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 3:History, archaeology, museology, and related fields
Research InstitutionNational Museum of Japanese History

Principal Investigator

Sakamoto Minoru  国立歴史民俗博物館, 大学共同利用機関等の部局等, 教授 (60270401)

Co-Investigator(Kenkyū-buntansha) 尾嵜 大真  東京大学, 総合研究博物館, 特任研究員 (20399265)
箱崎 真隆  国立歴史民俗博物館, 大学共同利用機関等の部局等, 研究員 (30634414)
木村 勝彦  福島大学, 共生システム理工学類, 教授 (70292448)
中尾 七重  山形大学, 理学部, 研究員 (90409368)
三宅 芙沙  名古屋大学, 宇宙地球環境研究所, 准教授 (90738569)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥44,070,000 (Direct Cost: ¥33,900,000、Indirect Cost: ¥10,170,000)
Fiscal Year 2021: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2020: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Fiscal Year 2019: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2018: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Keywords炭素14年代法 / 較正年代 / 地域効果 / 微細構造 / 年輪年代法 / 炭素14年代 / 較正曲線 / IntCal20 / 放射性炭素年代法
Outline of Final Research Achievements

We conducted annual 14C dating of tree rings from Japan and the Korean Peninsula, which had been dated by dendrochronology including oxygen isotope methods. Japanese tree rings tend to show older 14C dates than those from Europe and the U.S., but trees from Kyushu during the beginning of the Yayoi period have a meandering calibration curve relative to IntCal, which may affect the age calibration. The calibration curve for the 1st to 3rd century was revised to IntCal20 following the adoption of the Japanese tree-ring data, but the tree rings from the southern coast of the Korean peninsula do not match the IntCal20 curve. The 14C age behavior of Japanese tree rings may be a rather peculiar regional effect. Together with the previously reported results, which have been developed using five tree rings as a single source, 14C ages of Japanese tree rings have been accumulated for the past 3,000 years.

Academic Significance and Societal Importance of the Research Achievements

炭素14年代法に不可欠な較正曲線の整備に日本産樹木年輪のデータが採用され,より確からしい年代測定が可能になった。ただし多くは5年輪を1試料とした測定で分解能が低い。海外では年輪1層ずつの測定が主流となりつつあり,本研究でその流れに追随するに十分な成果が得られた。較正曲線の地域効果についても認識されるようになり,学会では今後日本をはじめとする東アジア産の樹木年輪の採用が期待できる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (19 results)

All 2021 2020 2019 2018

All Presentation (18 results) (of which Int'l Joint Research: 9 results,  Invited: 3 results) Book (1 results)

  • [Presentation] Single-year radiocarbon dating of Japanese tree rings of the 10th century including the 946CE eruption of the Baitoushan Volcano.2021

    • Author(s)
      Sakamoto Minoru, Tokanai Fuyuki, Mitsutani Takumi
    • Organizer
      15th International Conference on Accelerator Mass Spectrometry (AMS-15)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 較正曲線IntCal20と樹木年輪2021

    • Author(s)
      坂本稔・箱﨑真隆・中尾七重
    • Organizer
      日本文化財科学会第38回大会ワーキンググループ会議
    • Related Report
      2021 Annual Research Report
  • [Presentation] 日本産樹木年輪の単年輪14C測定-AD1600-18002021

    • Author(s)
      坂本稔・中塚武・門叶冬樹
    • Organizer
      日本文化財科学会第38回大会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本産樹木年輪と較正曲線IntCal202021

    • Author(s)
      坂本稔
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本産樹木年輪の単年輪14C測定-AD1158~14362020

    • Author(s)
      坂本稔,箱崎真隆,横山操,門叶冬樹,光谷拓実
    • Organizer
      日本文化財科学会第37回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] IntCal20較正曲線改訂のポイント2020

    • Author(s)
      坂本稔
    • Organizer
      日本文化財科学会第37回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Annual Radiocarbon Dating of Japanese Tree Rings: Early-modern and Ancient.2019

    • Author(s)
      Minoru Sakamoto, Masataka Hakozaki, Hiromasa Ozaki, Fuyuki Tokanai, Takeshi Nakatsuka
    • Organizer
      Radiocarbon and Archaeology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本産樹木年輪の炭素14年代測定-年代研究と日本版較正曲線2019

    • Author(s)
      坂本稔,箱崎真隆,光谷拓実,中塚武
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 丸岡城天守の年代調査-3.単年輪14C測定による較正曲線2019

    • Author(s)
      坂本稔,門叶冬樹,箱崎真隆,中尾七重
    • Organizer
      日本文化財科学会第36回大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 炭素14年代法と較正年代2019

    • Author(s)
      坂本稔
    • Organizer
      第56回アイソトープ・放射線研究発表会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] REKIHAKU wood member collection of historical buildings - architectural and scientific approach.2019

    • Author(s)
      Minoru Sakamoto
    • Organizer
      ICOM KYOTO 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 炭素14年代法による年代測定-日本版較正曲線の未来-2019

    • Author(s)
      坂本稔
    • Organizer
      日本活断層学会2019年度秋季学術大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Annual Radiocarbon Dating of Japanese Tree Rings: Early-modern and Ancient2019

    • Author(s)
      SAKAMOTO Minoru, HAKOZAKI Masataka, OZAKI Hiromasa, TOKANAI Fuyuki, NAKATSUKA Takeshi
    • Organizer
      Radiocarbon and Archaeology, 9th International Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日本産樹木年輪の炭素14年代測定-年代研究と日本版較正曲線2019

    • Author(s)
      坂本稔・箱﨑真隆・光谷拓実・中塚武
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 丸岡城天守の年代調査-3.単年輪14C測定による較正曲線2019

    • Author(s)
      坂本稔・箱﨑真隆・門叶冬樹・中尾七重
    • Organizer
      日本文化財科学会第36回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 樹木年輪のAMS-炭素14年代測定から観るアンソロポシーン2018

    • Author(s)
      坂本稔
    • Organizer
      日本質量分析学会・日本プロテオーム学会2018年合同大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Radiocarbon measurement of remained wood members of Byodo-in Temple: from 10c to 12c CE (and buried wood of central Japan, 4-7c CE).2018

    • Author(s)
      SAKAMOTO Minoru,YOKOYAMA Misao,NAKATSUKA Takeshi,MITSUTANI Takumi
    • Organizer
      The 23rd International Radiocarbon Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 近世日本産樹木年輪の単年輪炭素14年代測定2018

    • Author(s)
      坂本稔・中尾七重・箱﨑真隆・門叶冬樹
    • Organizer
      日本文化財科学会第35回大会
    • Related Report
      2018 Annual Research Report
  • [Book] 樹木・木材と年代研究2021

    • Author(s)
      坂本 稔、横山 操
    • Total Pages
      164
    • Publisher
      朝倉書店
    • ISBN
      9784254535686
    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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