重庆大足宝顶山千手观音的贴金材料分析研究

为研究重庆大足宝顶山千手观音的贴金材料及其保存状况，应用红外光谱分析、加速器质谱碳十四年代测定、X荧光能谱分析、扫描电镜分析等多种分析方法，对千手观音造像的贴金、金胶样品进行了综合分析。结果表明：表面现存的0层及其以上贴金层均为清代以后所妆贴；金胶存在一定程度的老化，但腐蚀劣变情况并不严重，但吸水后会发生膨胀；千手观音表面贴金采用了在金胶中加入HgS以衬托金色的传统工艺。研究成果可为今后造像保护工作的展开提供一定的科学依据。

An analytical study of gilding and adhesive materials on the One-thousand-hand Buddha at Dazu Grotto,Baoding Mountain,Chongqing

Infrared spectroscopy,AMS ~(14)C dating,X-ray fluorescence and scanning electron microscopy were used to understand the gilding and adhesive materials and state of preservation of the one-thousand-hand Buddha statue at Dazu Grotto,at Baoding mountain,Chongqing.Analysis suggested that remaining gilding layers above lay- er 0 were all applied as decorative layers after the Qing Dynasty.The gilding adhesive had aged to a certain extent but erosion and deterioration was not severe as long as it was swelled with water.HgS had been mixed with the gild- ing adhesive to enhance the gold color,which is a traditional technique.The research results provided scientific in- formation that will aid future statue conservation