• Title/Summary/Keyword: Stone Conservation

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Philosophical Consideration on the Conservation of the Stone Cultural Properties (석조문화재의 보존에 대한 철학적 고찰)

  • Lee, Sang Hun
    • Journal of Conservation Science
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    • v.34 no.3
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    • pp.235-244
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    • 2018
  • The forms of stone cultural properties vary depending on the purpose of construction. In general, pagodas and statues of the Buddha (including the Maebul) are representative of stone cultural properties and demonstrate important aspects of cultural history and scientific technology. The purpose for which cultural properties were constructed may influence construction technologies, so we must carefully think about and clearly understand the purpose of construction, namely the cultural and/or philosophical history, when conducting conservation treatments now. This may be examined through the relationship between "why?" and "how?": Why did the builders construct these stone cultural properties, and how did they use such technologies? We may be deeply impressed by the form and delicacy of the sculpture, which is the "how" aspect of the technologies, but we must also understand the effect of the "why." namely the soul and/or spirit of those who created the properties. The form of stone cultural properties may be influenced by (1) the political-social sphere, (2) religion, or (3) the cultural history of the period, which have changed over time. It is important that this is the view taken in current conservation treatment.

A Study on the Material Characteristics and Weathering Aspects of Sculpture Stone Around the World Cultural Heritage Joseon Dynasty Royal Tombs - Focused on the East Nine Royal Tombs - (세계문화유산 조선왕릉 석조문화재의 재질특성 및 풍화양상 연구 - 구리 동구릉을 중심으로 -)

  • CHO Hajin ;CHAE Seunga ;SONG Jinuk;LEE Myeongseong ;LEE Taejong
    • Korean Journal of Heritage: History & Science
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    • v.55 no.4
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    • pp.180-193
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    • 2022
  • The East Nine Royal Tombs is a representative place in the Royal Tombs of Joseon (a World Heritage Site). It consists of 1,289 stone artifacts including 979 related stone structures, 310 stone statues, and objects. Most of the stone structures in the East Nine Royal Tombs are composed of biotite granite, but some tombs are composed of light red granite. As a result of magnetic susceptibility measurement, the average data from Geonwolleung to Mongneung, excluding Hyeolleung, were similar, so it is estimated that stones were obtained from the same quarry. In the case of Sungneung, Sureung, and Gyeongneung, the range of susceptibility measurement is widely distributed. It assumed that the newly produced stones were mixed in the moving and construction process. Also, stones might be gathered from different quarries. As a result of a conservation status investigation, both the mound member and the ridge stone had the highest damage rate due to peeling and granular decomposition according to surface weathering. In the case of surface discoloration, yellowing and soils were found in the burial mound members. Yellowing, blackening, and soil were identified in the ridge stone structures. Bio-degradation is the major factor of deterioration of the East Nine Royal Tombs and the conservation status of the tombs were detected as grades 4 to 5. It seems that it is easy for the environment of the royal tombs to form soil for the microorganisms and fine conditions for continuous moisture. In the case of structures, they are in relatively good condition. As a result of a comprehensive damage rating for each tomb, the overall condition is good, but the Geonwolleung Royal Tomb and Hyeolleung Tomb, which were created in the early period, had relatively high weathering ratings. Stone objects in East Nine Royal Tombs have lost many pieces and gateway members due to surface deterioration. Also, secondary damage is ongoing. Each damage factor of the stone artifacts of the East Nine Royal Tombs combines to cause various and continuous damages. Therefore, it is necessary to establish regular conservation status data of the stone artifacts for efficient management after processing as well as conservation treatment of the royal tombs, and specific management manuals and systems. This study investigated the conservation status of stone structures in the East Nine Royal Tombs, a World Heritage Site, and systematically classified them to provide priority and necessity for conservation processing. We look forward to establishing a plan for the conservation and management of the East Nine Royal Tombs with this database in the future.

Research of stone pagoda weathering degree from contaminated distribution analysis of 10-storied pagoda in the temple of Kyoungchunsa (경천사십층석탑의 오염물분포별 현황조사를 통한 석탑 풍화도에 관한 연구)

  • Kim, Jin-Hyoung;Lee, Joo-Wan;Kang, Dai-Ill
    • 보존과학연구
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    • s.25
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    • pp.75-92
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    • 2004
  • The conservation treatments of 10-storied pagoda in the temple of Kyoungchunsa is progressed favorably to come to the finish since 1995. Most of all, the important conservation treatments are stone crack, exfoliation and partial form modification. This pagoda has been made up a complicated structure constructed using 142 stones. Therefore, the stone crack and exfoliation have been occurred as very varied forms. Especially, the stylobate of the pagoda has 19 substitution stones of 48 stones, which is40% of modern stone substitution. It is supposed that there is serious weathering on the stones. The other stones, which are no substitution stones, have some kinds of weathering and so we carried out inside replenishment and partial outside reconstruction of crack stones using high molecular resin and substitution stone. The stone of each storey has also partial difference, but the condition of serious weathering on the whole. We can detect general degree through treatment of high molecule resin or distribution research of contaminated material on 10-storied pagoda in the temple of Kyoungchunsa. Especially, we are able to analyze general weathering degree and know details weathering of each storey or direction for the difference of replenishment quantity and different pattern of stone crack degree. Also, the distribution research will accomplish very important parts of examining environment effects and use as research data of cultural heritage conservation field.

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Interdisciplinary Study on Bronze Age Artifacts in Midwestern Korea: Material Characteristics and Provenance Presumption for Stone Artifacts of the Sinsongri Site in Seosan (한반도 중서부 청동기시대 유물의 융합과학적 연구: 서산 신송리유적 석기의 재질특성과 산지추정)

  • Lee, Chan Hee;Kim, Ran Hee;Eo, Eon Il
    • Journal of Conservation Science
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    • v.30 no.2
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    • pp.205-217
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    • 2014
  • The stone artifacts in Bronze age from the Sinsongri sites in Seosan, Korea were studied on material characteristics and provenance presumptions. The use and rock names of the artifacts are a stone before processing, two semifinished stone arrowheads and a grinding stone plate by slates. In addition, there is semifinished stone arrowhead by andesitic rocks. The slate could be observed easily around the site, and the andesitic rock could be confirmed typical occurrences of the all kinds of rocks around the Kanwoldo and Hwangdori, Anmyun area above 10km from the site. As a result of analysis which is comparing between stone artifacts and same kinds of raw material rocks, the stone artifacts made by slates have similar lithology and geochemical characteristics however, the stone artifacts made by andesitic rocks are found a some different part of characteristics to the same kind of raw material rocks. Comparing of major, rare earth, compatible and incompatible elements about stones artifacts made by slates and by the same kinds of raw material rocks have same geochemical patterns. However stone artifacts made by andesites and the raw material rocks are confirmed some differences of geochemistry. Therefore the slate stone artifacts in Sinsongri site suggest that these are domestic-type which are made of the rocks around the site, and it was understood that the andesitic stone artifacts are foreign-type which need to get more geological survey and study about different volcanic artifacts of the site around the area.

A Study on the Original Form and Authenticity of the Stone Cultural Heritage according to the Conservation Treatment - With Focus on the Stupa of State Preceptor Jigwang from Wonju Beopcheonsa Temple to the Conservation Treatment - (석조문화재 보존처리에 따른 원형보존과 진정성 고찰 - 원주 법천사지 지광국사탑 보존처리 사례를 중심으로 -)

  • Lee, Tae Jong;Cho, Ha Jin;Park, Hee Jeong;Kang, San Ha
    • Journal of Conservation Science
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    • v.35 no.3
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    • pp.259-268
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    • 2019
  • Stone cultural heritage will either be damaged by composite damage or will lose its original historical authenticity starting with the moment it is created. Various artificial interventions to restore them to their original state have been described, centering on the conservation treatment case of the Stupa of State Preceptor Jigwang from the Wonju Beopcheonsa Temple Site. Restoration of the Jigwang stone pagoda was carried out after securing all scientific and technological means for the research and protection of the cultural heritage in question. Since its restoration was promoted to retain its aesthetic and historical value and was based on a careful understanding of the original materials and prototypes, extensive restoration was sought, which contributed to the restoration of the original form, resulting in both preservation and authenticity.

Relationship Between Deterioration State and Conservation Treatment Types for State-designated Stone Cultural Heritage in Korea (국가지정 석조문화재의 훼손상태에 따른 보존처리 상관성 연구)

  • Lee, Myeong Seong;Chun, Yu Gun;Lee, Mi Hye;Lee, Jae Man;Park, Sung Mi;Kim, Jae Hwan
    • 보존과학연구
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    • s.34
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    • pp.64-81
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    • 2013
  • It is not easy to define the priority criteria of the need of conservation treatment for stone cultural heritage, although many of them have been treated and restored over the past decade. This study approached the correlation between damage grade and the need of conservation treatment based on damage diagnosis of stone cultural heritage carried out from 2001 to 2005. The number of Third-graded (from First to Fifth-grade) stone heritage in deterioration was the highest among state-designated stone cultural heritage. The Fourth-graded stone cultural heritage (143 in total) was mostly influenced by high physiochemical deterioration, whereas the Fifth-graded ones (61 in total) was dominantly affected by biological colonization. It was estimated that total 211 stone cultural heritage were treated for conservation and restoration from 2002 to 2011. They were usually cleaned (total 134, 26.1%), joined and consolidated, and maintenance works as shelter construction, drainage installation and surrounding cleaning were carried out for some of them. The number of conservation intervention increased with the high deterioration grade, and the case number of metamorphic and sedimentary rocks. By age, the stone cultural heritage in Three-kingdom Period were treated the most, and other heritage in Unified Shilla, Goryeo and Joseon showed an approximate ratio. The stone cultural heritage fallen in the fifth-grade in deterioration demonstrated the highest ratio, approximately 80% of conservation intervention. These results can be used as preliminary data to define the emergency criteria for conservation intervention policy.

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Quantitative Analysis and Archaeogeological Interpretation of Stone Implements from the Unjeonri Bronze Age Relic Site (천안 운전리 청동기 유적지에서 출토된 석기의 정량분석과 고고지질학적 해석)

  • Lee, Chan Hee;Oh, Kuy Jin;Lee, Hyo Min;Lee, Myeong Seong
    • Journal of Conservation Science
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    • v.12 no.1 s.15
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    • pp.31-47
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    • 2003
  • The stone implements from the Unjeonri relic sites were studied on the basis of petrology, geochemistry and archaeogeological interpretations. Magnetic susceptibility (MS) of the stone implements were mainly lest than 0.5 $(10^{-3}\;SI\;unit)$, however, stone axe of syenitic rock (2.37), stone axe of schist (0.19) and stone knife of slate (0.11) showed different from the some measured rocks of an outcrop. Geochemical evolution trend of both a stone implement and the surface rock were identical when it a normalization to use the behavior, enrichment, compatibility and incompatibility of the elements. But, some rocks of a axe (schist), a knife (slate), a arrowhead (shale) could not confirm typical occurrence and the distribution area within the Unjeonri site and a radius 10 km. In the Unjeonri site, the stone implements suggest that coexisting two types as domestic- and foreign-type lithic artifacts.

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A Study on the Material Characteristics of Stone Tools Excavated from the Remain Point of Paleolithic Age in Osong Site, Cheongju

  • Kim, Jae Hwan;Han, Min Su
    • Journal of Conservation Science
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    • v.35 no.1
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    • pp.41-49
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    • 2019
  • This study analyzes the material characteristics of stone tools of the Paleolithic period excavated from the Osong site, located at the project site for the creation of the Osong 2nd Life Science Complex, and estimates the provenance of the stone materials. Because the stones had been buried for a long time, their surfaces had become heavily weathered yellow or yellowish-brown, and the magnetic susceptibility values varied from 0 to 15(${\times}10^{-3}SI$). The excavated stone tools were rocks with various magnetic susceptibility values that could not be specified. Five stone tools subjected to destructive analysis were divided into two groups, one with a value of 1-3(${\times}10^{-3}SI$) and the other with a value of 5-9(${\times}10^{-3}SI$), both based on visible characteristics. The results of the thin-section analysis showed that most of the stone tools were basaltic rocks comprising plagioclase, quartz, and pyroxene, and some had iron content as high as 20 wt.%. These findings and the present geological map suggest that the stone tools were not made from the surrounding rocks because there are no areas containing basaltic rocks surrounding Bongsan-ri in Osong-eup. Andesite and tuff are distributed along with basaltic rocks in the Doan-myeon area in Jeongpyeong-gun, Chungcheongbuk-do Province, but the distance from the excavation site is too far. To determine whether this region is actually related to the provenance of the raw rock, it is necessary to conduct additional field surveys and comprehensive and precise analyses.

Precise Deterioration Diagnosis and Restoration Stone Suggestion of Jungdong and Banjukdong Stone Aquariums in Gongju, Korea (공주 중동 및 반죽동 석조의 정밀 손상도 진단과 복원석재 제안)

  • Jo, Young Hoon;Lee, Myeong Seong;Choi, Gi Eun;Lee, Chan Hee
    • Korean Journal of Heritage: History & Science
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    • v.44 no.3
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    • pp.92-111
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    • 2011
  • This study focus on the restoration stone selection of break-out part based on material characteristics analysis and the conservational safety diagnosis using various nondestructive techniques for Jungdong and Banjukdong Stone Auariums. As a result, the original rocks of the stone aquariums body are porphyritic granodiorite with magnetite-series having igneous lineation, microcline phenocryst, veinlet and basic xenolith. As a result of the provenance presumption of the host rock, a rock around Gamgokri area in Nonsan City was identified the genetically same rock. Therefore, the rock is appropriate for restoration materials of the break-out part. The deterioration assessment showed that the stone aquariums were highly serious scaling, scale off and blackening. Particularly, the front face of Banjukdong stone aquarium needs reinforcement of structural crack (760mm) caused from igneous lineation of biotite. Blackening contaminants on the stone aquariums surface occurred by combining iron oxide, manganese oxide and clay mineral. Also, major factors of efflorescence contaminants were identified as calcite (Jungdong stone aquariums) and gypsum (Banjukdong stone aquariums). The physical characteristics of stone aquariums appeared that the original and new stone is third (moderately weathered) and second grade (slightly weathered), respectively. This study sets up an integrated conservation system from material analysis to restoration stone selection and conservational safety diagnosis of Jungdong and Banjukdong stone aquariums.