Economic and Environmental Geology (자원환경지질)

The Korean Society of Economic and Environmental Geology (대한자원환경지질학회)
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Interpretation of Similarity on Raw Materials and Firing Temperature for Underwater Ceramic Artifacts from Offshore in Taean Mado, Korea

태안 마도해역 출수 도자기의 소성온도 및 원재료의 유사성 해석

  • Lee, Gyu Hye (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Lee, Chan Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University)
  • 이규혜 (공주대학교 문화재보존과학과) ;
  • 이찬희 (공주대학교 문화재보존과학과)
  • Received : 2020.03.28
  • Accepted : 2020.05.12
  • Published : 2020.06.28
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Abstract

This study focuses on the raw material characteristics, including firing temperature and the similarity of clay body, and making techniques on the underwater ceramics from offshore of Taean Mado, the Republic of Korea. The ceramic specimens include various types of celadons, Buncheongwares and white porcelains with very similar physical characteristics. All the clay bodies composed of same mineral phases within mullite and quartz, while cristobalite were also found in some white porcelains. Also, the geochemical composition of the clay body shows regular behavior properties for all the elements consisting of the celadons and Buncheongwares. In contrast, the irregular properties of trace and incompatible elements were found in white porcelains. Therefore, it is presumed that the white porcelains were made using the clay body with different source from the celadons and Buncheongwares. Notably, some white porcelains in low Th content are assumed to be made with clay formed in a different environments. Meanwhile, most of the ceramics had gone through the firing of 1,200 to 1,300℃, with some celadons fired from 1,150℃ to 1,200℃. Also, it can be interpreted as some white porcelains were fired on even up to 1,500℃.

이 연구에서는 중요한 수중발굴지의 하나인 충남 태안 마도해역에서 출수된 도자기를 대상으로 물리적, 광물학적 및 지구화학적 특성을 분석하여 태토의 동질성과 소성온도를 검토하였다. 연구대상 도자기는 청자, 분청사기 및 백자로 다양하나 전반적으로 거의 유사한 물리적 특성을 보인다. 모든 도자기의 태토에서 뮬라이트와 석영이 주요 광물로 확인되며, 일부 백자에서만 크리스토발라이트가 동정되었다. 또한 청자와 분청사기 태토는 동질한 조성과 점토화도 및 원소의 거동양상을 보이는 반면, 백자는 이와 상이하며 미량 및 불호정원소를 중심으로 다양한 특징을 보인다. 따라서 백자는 청자 및 분청사기 제작에 사용한 태토와 성인이 다른 점토로 제작되었으며, 이 중에서도 낮은 Th 함량을 갖는 일부 백자는 또다른 상이한 환경에서 형성된 점토를 활용한 것으로 추정된다. 한편 도자기의 소성온도는 대부분 1,200에서 1,300℃로 보이며 일부 청자는 1,150℃에서 1,200℃, 일부 백자는 1,500℃ 정도의 과소성을 경험하였을 가능성이 있는 것으로 해석된다.

Keywords

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