摘要：随州叶家山墓地M28出土的两件铜锭，不仅形状不同，而且埋藏位置颇为讲究。本文利用金相显微镜、扫描电镜能谱仪、多接收双聚焦等离子质谱仪和电感耦合等离子体原子发射光谱仪对这两件铜锭的金相、成分、铅同位素比值和微量元素含量进行了检测分析，初步揭示出其重要的技术特征：二者均为α （α Cu2O）亚共晶组织，为纯铜制品；但是不是同一批铜料制成，与已知的长江流域铜矿冶遗址未有直接的联系。文章还结合古代青铜器铭文有关内容的记载，对这两件铜锭的文化内涵进行了初步探讨，对深化认识西周时期金属物料流通机制和器用制度具有重要意义。
关键词：西周；叶家山；曾国；铜锭
Comprehensive Analysis of the Copper ingots Excavated From the No.M28 Tomb of Yejiashan Cemetery, Suizhou County, Hubei Province
Yu Yongbin, Chang Huaiying, Chen Kunlong, Huang Fengchun, Li Ling, Mei Jianjun, Chen Jianli
(Beijing 100083) (Beijing 100710) (Wuhan 430077) (Beijing 100871)
Abstracts: Two copper ingots were excavated from the No.M28 tomb of the Yejiashan cemetery, Suizhou County. The shapes of these two ingots are different, and they were also placed in very different locations suggesting a likely variation in their function. The metallographic microstructure, chemical compositions, lead isotope ratios, and trace element contents were examined and analyzed by metallographic microscope, SEM-EDS, MC-ICP-MS and ICP-AES. The results indicate that both of the ingots were made from α （α Cu2O）hypoeutectic pure copper. The provenance of the two ingots may be different, and the chemical signals does not match any mining sites in the Yangtze River Basin known to date. This paper futher discussed the natural and cultural connotation of these two ingots, which are of great significance in recognizing the circulation system of metal material in Western Zhou.
Keywords: Yejiashan Cemetery of Western Zhou Dynasty, Zeng State, Tomb No.M28, copper ingots