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Research on investigation, analysis, and conservation of artifacts from Takashima underwater site

Research Project

Project/Area Number 17300293
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Cultural property science
Research InstitutionGangoji Research Institute of Archaeology, Cultural Anthropology, and Conservation Science

Principal Investigator

UEDA Naomi  Gangoji Research Institute of Archaeology, Cultural Anthropology, and Conservation Science, Research Section, Researcher (10193806)

Co-Investigator(Kenkyū-buntansha) TSUKAMOTO Toshio  Gangoji Institute for Research of Cultural Property, Research Section, Researcher (30241269)
KAWAMOTO Kozo  Gangoji Institute for Research of Cultural Property, Research Section, Researcher (10241267)
HASHIMOTO Hidemasa  Gangoji Institute for Research of Cultural Property, Research Section, Researcher (80372168)
NAKAMURA Toshio  Nagoya University, Center for Chronological Research, Professor (10135387)
KOUZUMA Yousei  Nara National Research Institute for Cultural Proparties, Center for Archaeological Operations, Researcher (80234699)
尾崎 誠  (財)元興寺文化財研究所, 研究部, 技師 (50224209)
池田 英史  琉球大学, 法文学部, 教授 (40150627)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥17,390,000 (Direct Cost: ¥16,400,000、Indirect Cost: ¥990,000)
Fiscal Year 2007: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2006: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2005: ¥9,600,000 (Direct Cost: ¥9,600,000)
KeywordsArms / X-ray computed tomography / Swords / Helmets / Radiocarbon dating / X-ray fluorescence analysis / Lacquer layer structure / Under water site / X線透過撮影 / 現地調査 / 出土鉄製品(7) / 出土鉄製品
Research Abstract

Research objects excavated from underwater site were investigated and analyzed for three years. Since most of the metal artefacts was buried in the underwater for a long time, encrusted with corrosion products unlike metal objects from terrestrial environments. As a result, it is often difficult to remove corrosion products from metal objects unearthed from underwater site, without loss of archaeological information. Then we adopted X-ray radiography and X-ray Computed Tomography to salvage encrusted information of metal artefacts with nondestructive method. To the next, the Japanese lacquer by sampling in part was analyzed layer structure. In addition to radiocarbon dating of the organic matter including Japanese lacquer was carried out, and it has checked that those artefacts were resulting from second Mongolian Invasion to Japan. Father X-ray fluorescence analysis was carried out about metal artefacts without iron artefacts and it investigated about identification of the material. As a result it has become possible to analyze those artefacts archaeologically in comparison with the artefacts unearthed from terrestrial environment. Finally, it has become possible to guess about manufactured technique

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (3 results)

All 2007

All Presentation (3 results)

  • [Presentation] 海底遺跡出土大刀の構造復元 -「蒙古襲来」の考古学的検討へ向けて-2007

    • Author(s)
      橋本英将
    • Organizer
      アジア文化財保存修復学会
    • Place of Presentation
      国立中央博物館(韓国)
    • Year and Date
      2007-11-01
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Study on Swords from Takashima Underwater Site2007

    • Author(s)
      Hidemasa Hasimoto
    • Organizer
      International Symposium on Conservation of Cultural Heritage in East Asia
    • Place of Presentation
      National Museum of Korea
    • Year and Date
      2007-11-01
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 海底遺跡出土大刀の構造復元-「蒙古襲来」の考古学的検討へ向けて-2007

    • Author(s)
      橋本英将
    • Organizer
      アジア文化財保存修復学会
    • Place of Presentation
      国立中央博物館(韓国)
    • Year and Date
      2007-11-01
    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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