湖北鄂州出土青铜器锈蚀状况分析

A RESEARCH ON THE RUSTED RESIDUES OF BRONZE VESSELS EXCAVATED IN EZHOU,HUBEI

在X射线荧光(XRF)基体合金成分及金相分析的基础上,利用X射线衍射(XRD)对湖北鄂州出土的几件"水坑器"锈蚀产物进行分析。结果表明,干湿交替的潜水面浮动带的大环境,与潮湿缺氧、透气性差以及SO^(2-)_4、Cl^-等络阴离子含量较高的局部埋藏环境造成青铜器严重腐蚀,锈蚀产物成分虽简单但不稳定,未见孔雀石等表生氧化条件下的稳定腐蚀产物。

The research of rusted residues of bronze vessels has been a vital task in archaeology research,and many scholars have already done lots of work on it,but there are seldom special research on rusted residues of southern＂water bronze vessels＂.This paper analyzed the rusted residues of some＂water bronze vessels＂from Ezhou,using XRD,XRF and metallographic examination,and their soil surroundings were discussed.The reason why these bronze vessels were seriously rusted while their rusted residues were still simple was revealed. The embedding surroundings of these bronze vessels are moist and anoxic and the soil have a high content of SO4^2- and Cl^-.