摘要：利用光学显微镜、能谱仪、拉曼光谱仪和红外光谱仪等仪器，对盘龙城杨家嘴M26出土青铜斝足内壁白色物质进行分析，结果表明其为碳酸钙。结合斝足存在破损的现象，推测古人使用熟石灰乳液作为胶结材料修补斝足，并利用其与二氧化碳转变为不溶于水的碳酸钙达到密封效果。
关键词：盘龙城遗址；M26；青铜斝；碳酸钙；科学分析
A Preliminary Analysis of White Products on the Feet of Bronze Vessel (Jia) Unearthed from Tomb No.M26 in Panlongcheng Site
Li Yang, Li Qi, Tong Hua
(Wuhan, Hubei 430072)
Abstract: The white residue found on the feet of the bronze vessel (Jia) from Tomb No. M26 in Panlongcheng Site were characterized by OM, EDS, Raman and FT-IR. The experimental result revealed that: the white residue was identified as CaCO3. Considering the phenomenon of the hole on the foot of the bronze vessel, it suggests that the ancient casters used Ca(OH)2 as cements to repair damaged feet. And it may have sealing properties because the Ca(OH)2 would have turned into CaCO3 when exposed to the air is becomes insoluble in water.
Keywords: Panlongcheng Site, M26, bronze vessel (Jia), CaCO3, scientific analysis