• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Radiocarbon Calibration Using Japanese Wood Samles

Research Project

Project/Area Number 09301017
Research Category

Grant-in-Aid for Scientific Research (A).

Allocation TypeSingle-year Grants
Section一般
Research Field 考古学(含先史学)
Research InstitutionNational Museum of Japanese History

Principal Investigator

SAHARA Makoto  National Museum of Japanese History, Director General, 館長 (20000466)

Co-Investigator(Kenkyū-buntansha) SAKAMOTO Minoru  National Museum of Japanese History, Department of Museum Science, Research Associate, 情報資料研究部, 助手 (60270401)
IMAMURA Mineo  National Museum of Japanese History, Department of Museum Science, Professor, 情報資料研究部, 教授 (10011701)
SHIRAISHI Taichirou  National Museum of Japanese History, Department of Museum Science, Research Associate, 企画調整官 (60150017)
NAKAMURA Toshio  Nagoya University, Dating and Material Research Center, professor, 年代測定資料研究センター, 教授 (10135387)
MITSUTANI Takumi  Nara National Cultural Properties Research Institute, Center for Excavation Materials, Senior Researcher, 埋蔵文化財センター・発掘技術研究室, 室長 (90099961)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥34,800,000 (Direct Cost: ¥34,800,000)
Fiscal Year 1999: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1998: ¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 1997: ¥26,100,000 (Direct Cost: ¥26,100,000)
KeywordsDendrochronology / Radiocarbon Age / Calibrated Age / Chronology / Archaological Material / Yayoi Period / AMS / 年輪年代, / 炭素14年代, / 修正年代, / AMS, / 歴史資料, / 弥生時代, / 考古資料 / 縄文時代
Research Abstract

Although the universal calibration curvcs have been widely used for radiocarbon dating of Japanese sarnples and should be suitable for practical use, it is necessary to establish its basis of correctness. To improve this situation we have performed precise 14C calibration using dendrochronologically dated tree-rings of cedars and cypresses. We focused on the ages between 350 BC and AD 900, in particular the prehistoric era called the Yayoi Period and the proto-historic era known as the Kofun Period in the history of Japan.
The tree ring samples used in this study are specimens from Japan Cedar (Sugi) trees, incluchng bog-woods from Hakone (HK series, 240BC-AD200) and Miyata-Mura, Nagano Pref. (MT, AD330-AD630) and timbers cxcavated at the Hotta-no-Saku Site, Akita Pref. (AHI, AD690-AD800 ; AH3', AD660-AD900). The dendro-dates were determined by comparison of the standardized ring patterns with the master chronology at the Nara National Cultural Properties Research Institutc. The specimens were cut into decadal pieces, pulverized to fine fiber tips, processed by a conventional acid-base-acid treatment, and finally extracted as cellulose. The cellulose was oxidized into carbon dioxides, which were then purified and converted into graphite. For most of the samples 14C was measured by AMS at Gronningen University.
The result shows that they are generally in good agreements with the INTCAL98 data, which are based on the European and North Arnerican woods. However, we have to reserve a possibility that several 1 4C data may show a small deviation from INTCAJ_98 at certain years. Wiggle-matching gives almost exactly the dendro-dates, and the differences being only a fcw years. Good agreements are also found for cypress (Hinoki) tree-rings from the lkegarni-Sone Site, Osaka Pref. These rcsults confirm for the first tiITLe the correctness of using INTCAL98 for Japanese samples. The results will be presented at Intcrnational Radiocarbon Conference in Israel (June, 2000).

Report

(4 results)
  • 2001 Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 今村峯雄: "高精度14C年代測定と考古学 -方法と課題-"月刊 地球. (号外)26. 23-31 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Imamura: "Radiocarbon age calibration for Japanese woods samples : wiggle-matching analysis for a test specimen"Revue d'Archeometrle (Proc.3^<rd> Congress on Archaeology and 14C, Lyon, Aprll 1998). Suppl(印刷中). (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 今村峯雄: "高精度14C年代測定と考古学-方法と課題-"月刊地球. (号外)26. 23-31 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M. Imamura: "Radiocarbon age calibration for Japanese wood samples : wiggle-matching analysis for a test specimen"Revue d'Archeometrie (Proc. 3^<rd> Congress on Archaeology and 14C, Lyon, April 1998). Suppl.(印刷中). (1999)

    • Related Report
      1999 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi