巴中水宁寺摩岩石刻的彩绘颜料分析

巴中水宁寺摩崖造像以题材广泛、形式多样、雕刻精致著称于世,但潮湿的环境,不稳定的崖体,半露天的保存环境使水宁寺石刻遭到了严重的破坏,影响了石刻的艺术性,因此水宁寺摩崖造像保护修复工作迫在眉睫.通过对水宁寺石刻颜料的分析,获取彩绘颜料的信息,一方面为颜料复原提供科学依据,另一方面也有利于文物工作者展开针对性保护工作,具有...

Analysis of Color Paint for Moyan Stone Carvings in Shuining Temple in Bazhong

Shuining Temple in Bazhong is famous for its wide range of themes, diverse forms and exquisite carving. However, the wet environment, unstable cliff body and the semi-open preservation environment caused serious damage to the stone carvings of Shuining Temple, which affected the artistry of the stone carvings. Therefore, the protection and restoration work of the cliff statues of Shuining Temple is extremely urgent. In this paper, through the analysis of the pigments for the stone carvings in Shuining Temple, the information of the pigment is obtained, which, on the one hand, provides a scientific basis for the restoration of the pigments, and on the other hand, is conducive to the targeted protection of cultural relic workers, which is of great significance for the protection of cultural relics. This paper used superdepth three-dimensional video microanalysis, X-ray fluorescence spectrum analysis (XRF), X-ray diffraction experiment analysis (XRD) and laser Raman spectrum analysis to comprehensively analyze the main composition minerals of shuining Temple moyan pigment from the appearance, structure and composition of the material. The results showed that the main mineral of sample No.1 was yellow ochre, sample No.2 was leaden, sample No.3 was celadon, sample No.4 was lead sulfate, sample No.5 was lapis lazuli, sample No.6 was goethite, and dihydrite was the white powder layer under the pigment layer. Due to the long-term exposure of the statues to the damp and semi-open environments, a few pigments could not be directly detected as standard substances, so secondary analysis should be conducted according to relevant data. For example, the main component of yellow ochre detected due to long-term weathering was Fe₂O₃. K₂PbO₂ and PbO₂ were decomposed under the environmental conditions of moisture and microbial presence. Goethite is produced by a chemical reaction of hematite or pyrite. In addition, by comparing the synthetic time of artificial lapis lazuli with the excavation age of the statue, and by detecting the element Fe, which implies that pyrite is the main component of Venus in natural lapis lazuli, we can judge that the pigment of this sample is made of natural lapis lazuli, which enriches the use cases of natural lapis lazuli.