摘要
铅同位素比值作为探索青铜器产地和矿料来源的指示剂而被广泛采用 ,为论证这种方法的可行性 ,进行了仿古范铸实验。测试分析表明 ,长江中、下游出土古铜锭含铅量大多在 1%以下 ,样品中添加铅的含量远高于铜、锡料所带入的微量铅。结果证明 ,青铜器铅同位素的指示意义是不确定的 ,并且在冶铸过程中可能存在铅同位素的分馏。
Experimental and testing work showed that indicating meaning of lead isotopes in bronze is indefinite. It is supposed to be very careful to use lead isotope as “fingerprint” for indicating the provenance of bronze and the mineral sources of bronzemaking metals. Lead isotopic ratio of bronze does not necessarily coincide with their metallic copper materials since tin and lead materials might be added during the melting. Moreover fractionation of lead isotope might happen during the melting and casting process of bronze.
出处
《文物保护与考古科学》
2004年第2期36-38,共3页
Sciences of Conservation and Archaeology
基金
国家自然科学基金重点项目 (10 13 5 0 5 0 )
全国文博事业人文社会科学 2 0 0 1年度重点研究课题 (2 0 0 10 42 )
关键词
铅同位素
青铜器
范铸实验
Lead isotopic ratio
Bronze
Molding experiment
