甘肃漳县墩坪墓地出土青铜器科学分析

对甘肃漳县墩坪墓地出土的39件铜器进行了科学分析。该批青铜器主要以铸造工艺为主，热锻、铸造后再加工工艺为辅。合金材质以Cu、Sn和Pb三种元素为主，还有少量以Cu、Sn两种元素为主，以及2件Cu、Sn、Pb、As为主的四元合金。另外在大多数铜器中还检测到少量或微量As元素，铅锡含量配比整体呈现锡含量高于铅含量的特点。As元素的出现，证明在东周时期以Cu、Sn、Pb三种元素为主要成分的青铜器物广泛传播的情况下，仍然有地区存在含砷的铜器。这批铜器的科学检测分析为研究西戎文化青铜器物的成型工艺和合金配比提供了更多的科学依据，丰富了西戎青铜文化的多样性。

Scientific Analysis of Bronzes Unearthed from Dunping Site in Zhangxian County, Gansu Province

Scientific analysis of 39 bronze wares unearthed from Dunping Site in Zhangxian county, Gansu province was carried out. The instrumental testing and analysis show that this batch of bronze wares is mainly based on casting technology, supplemented by hot forging and reprocessing technology. The alloy materials are mainly Cu, Sn and Pb, and there are also a small amount of quaternary alloys mainly composed of Cu, Sn, and 2 pieces of Cu, Sn, Pb and As. In addition, a small or trace amount of As is also detected in most bronze ware, and the overall ratio of lead and tin content shows that the content of tin is higher than that of lead. The appearance of As element proves that in the Eastern Zhou Dynasty, when the bronze utensils with Cu, Sn and Pb as the main components are widely spread, there are still places where arsenic-containing copper utensils existed. The scientific detection and analysis of this batch of bronzes provides more scientific basis for studying the forming process and alloy ratio of Xirong Culture bronze wares, and enriches the diversity of Xirong Bronze Culture.