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Conservation Treatment Based on Material Characteristics, Provenance Presumption and Deterioration Diagnosis of the Seven-Storied Jungwon Tappyeongri Stone Pagoda, Chungju, Korea

중원탑평리칠층석탑의 재질특성과 산지추정 및 손상도 진단을 통한 보존처리

  • Lee, Chan Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Kim, Moo Yeon (Research Institute of Cultural Properties, Enguard, Co. Ltd) ;
  • Jo, Young Hoon (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Lee, Myeong Seong (Division of Conservation Science, National Research Institute of Cultural Heritage)
  • 이찬희 (공주대학교 문화재보존과학과) ;
  • 김무연 ((주)엔가드 문화재연구소) ;
  • 조영훈 (공주대학교 문화재보존과학과) ;
  • 이명성 (국립문화재연구소 보존과학연구실)
  • Received : 2010.06.04
  • Accepted : 2010.08.17
  • Published : 2010.09.30

Abstract

This study was carried out on scientific conservation treatment based on material characteristics, provenance interpretation, and deterioration diagnosis for seven-storied Jungwon Tappyeongri stone pagoda in Chungju. As a result, main rock of the pagoda is biotite granite with magnetite-series (average $5.86{\times}10^{-3}$ SI unit), containing partly basic xenolith, pegmatite veinlet and feldspar phenocryst. As a result of the provenance presumption of the host rock, a rock around the Songgang stream was identified the same origin. Therefore the rock is appropriate for materials of the pagoda restoration. The deterioration assessment suggested that the pagoda was seriously exfoliated (2.7 to 5.5%), discolored (39.8 to 58.9), and contaminated with repair materials (3.5 to 9.4%), and bioorganisms (19.3 to 24.4%). Accordingly, conservation treatment was carried out based on preliminary investigation for stable conservation of the pagoda. Overall processes were sequentially proceeded by restoration of the replacement stone, cleaning, joining and consolidation. This study sets up an integrated conservation system from preliminary investigation to conservation treatment of the pagoda. Also, the study will contribute for establishing the future-oriented customized conservation treatment.