Beach Ridge Formation and Coastal Archaeology

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K01113
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 03050:Archaeology-related
• Research Institution: Ehime University
• Principal Investigator: Makibayashi Keisuke 愛媛大学, アジア古代産業考古学研究センター, 准教授 (50403621)
• Co-Investigator(Kenkyū-buntansha): 黒住 耐二 千葉県立中央博物館, その他部局等, 研究員(移行) (80250140)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 考古学 / 地形環境 / 浜堤 / 砂丘 / 瀬戸内海 / 製塩 / 東アジア

Outline of Final Research Achievements

The purpose of this study is to elucidate the actual conditions of beach-ridge and dunes in the islands of the Seto Inland Sea and the transition of coastal use in an East Asian perspective.The characteristics of beach-ridge formation on islands in the Seto Inland Sea and the differences and features between coastal areas and islands in the Seto Inland Sea were examined. In addition, through the survey and analysis of micro shells, we pointed out the possibility that the salt-making activities that can be assumed from the micro shells were limited.From an East Asian perspective, an examination of the relationship between dunes and beach-ridge and salt making activities reveals that the use of seawater is fundamental in the coastal areas of Southeast China, and in particular, salt making sites in the coastal areas of Southeast China are generally located on beach-ridge, and the topographical environment has similarities and similarities with the coastal areas and islands of Japan.

Free Research Field

考古学

Academic Significance and Societal Importance of the Research Achievements

日本列島の海岸遺跡の立地と遺跡形成に関わる研究において、砂丘形成と環境変動の関係だけでなく、浜堤形成の分析も重要であることを指摘した。主な対象を瀬戸内海島嶼部としたが、浜堤は日本においては相模湾・三河湾や和歌山湾の沿岸や島嶼部に、東アジアでは東南中国沿岸部にも多く存在しており、今後は浜堤形成のメカニズムの解明とともに遺跡研究を行っていくことが有効になる。また、こうした研究の視点や方法が加わり海岸遺跡の調査が進むことで、日本における海岸利用史の解明が進むだけでなく、東アジア的視野では広く共通性が見られることから、こうした歴史性も共有できるようになることは、本研究の社会的意義のひとつである。