成都金沙遗址青铜器的化学特征及矿质来源  

Chemical Character and Ore Source of Bronze Wares at Jinsha Site in Chengdu

作　　者：向芳[1] 蒋镇东 张擎 

机构地区：[1]成都理工大学沉积地质研究院,四川成都610059 [2]中国共产党成都市委员会统一战线工作部,四川成都610015 [3]成都市文物考古研究所,四川成都610071

出　　处：《地球科学与环境学报》2010年第2期144-148,共5页Journal of Earth Sciences and Environment

基　　金：国家自然科学基金项目(40602011);"十五"国家科技攻关计划项目(2004BA810B05)

摘　　要：在总结前人对商周遗址中青铜器研究的基础上,通过对成都金沙遗址出土青铜器的铅同位素和主要金属元素含量的测定,分析讨论了金沙青铜器的化学特征及可能的矿质来源。通过对测定结果的分析认为:青铜器的冶炼过程中人为进行铜铅锡含量配比的迹象并不明显,更多体现出直接利用多金属矿的结果;金沙遗址中青铜器的铅同位素值大部分异常高,表现出N(206Pb)/N(204Pb)大于20。根据区域地质资料和前人对多金属矿床的研究结果,认为金沙青铜器的铜矿石极有可能来自于距离较近的会理拉拉厂铜矿。On the basis of summarizing formers＇ results on bronze wares at some sites of Shang and Zhou dynasties,Pb isotopes and main metal elements of bronze wares at Jinsha Site in Chengdu were measured,and characters and possible ore sources of bronze wares at Jinsha Site were discussed.The result showed that there was no evidence that contents of Cu,Pb and Sn were artificially controlled while smelting bronze wares;bronze wares at most sites of Shang and Zhou dynasties were possibly smelted with multi-metal ores;the values of Pb isotopes of bronze wares at Jinsha Site were mostly high,and N（206Pb）/N（204Pb） was higher than 20.According to geology data and formers＇ results on multi-metal mineral deposits,Cu ores of bronze wares at Jinsha Site could be from Lalachang Cu deposits in Huili county,which is not far away from Jinsha Site.

关 键 词：金沙遗址 青铜器 化学特征 铅同位素 矿质来源 

分 类 号：P595[天文地球—地球化学] K876.41[天文地球—地质学]