LA-ICP-MS analysis of corroded glass beads from Southern China: tackling highly inhomogeneous archaeological glass

Qin-Qin Lü, Youjin Wu
{"title":"LA-ICP-MS analysis of corroded glass beads from Southern China: tackling highly inhomogeneous archaeological glass","authors":"Qin-Qin Lü, Youjin Wu","doi":"10.1080/20548923.2019.1650467","DOIUrl":null,"url":null,"abstract":"ABSTRACT Excavated glass artifacts are usually environmentally impacted, causing spatial inhomogeneity which poses great challenges for accurate and non-destructive chemical characterization. Here, we present our study on accurate characterization of archaeological glass with Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), a high-precision and minimally destructive analytic method. Using three corroded glass beads excavated from Guangnan, Yunnan, Southern China as examples, we discuss the issues that may be involved when observing signal curves of highly inhomogeneous archaeological glass, as well as provide chemical characterization for the intact pristine body. Results indicate that these Indo-Pacific monochrome beads are of the potassium silicate glass type and used mineral potash source, and that they contain copper as the colorant. By discussing the breadth and depth types of inhomogeneity and focusing on perturbation endured by major elements, we identify the extent of environmental alteration and describe how different elements and matrices can respond differently to the archaeological environment, leading to various corrosion behaviors. For such samples LA-ICP-MS is shown to be an advantageous tool to provide archaeologically relevant information, or to probe artifact conditions for conservation purposes. A good understanding of sample conditions, and close attention to the experimental and calibration process are required to overcome inhomogeneity when tackling archaeological glass. GRAPHICAL ABSTRACT","PeriodicalId":21858,"journal":{"name":"STAR: Science & Technology of Archaeological Research","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"STAR: Science & Technology of Archaeological Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/20548923.2019.1650467","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2

Abstract

ABSTRACT Excavated glass artifacts are usually environmentally impacted, causing spatial inhomogeneity which poses great challenges for accurate and non-destructive chemical characterization. Here, we present our study on accurate characterization of archaeological glass with Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS), a high-precision and minimally destructive analytic method. Using three corroded glass beads excavated from Guangnan, Yunnan, Southern China as examples, we discuss the issues that may be involved when observing signal curves of highly inhomogeneous archaeological glass, as well as provide chemical characterization for the intact pristine body. Results indicate that these Indo-Pacific monochrome beads are of the potassium silicate glass type and used mineral potash source, and that they contain copper as the colorant. By discussing the breadth and depth types of inhomogeneity and focusing on perturbation endured by major elements, we identify the extent of environmental alteration and describe how different elements and matrices can respond differently to the archaeological environment, leading to various corrosion behaviors. For such samples LA-ICP-MS is shown to be an advantageous tool to provide archaeologically relevant information, or to probe artifact conditions for conservation purposes. A good understanding of sample conditions, and close attention to the experimental and calibration process are required to overcome inhomogeneity when tackling archaeological glass. GRAPHICAL ABSTRACT
LA-ICP-MS分析中国南方腐蚀玻璃微珠:处理高度不均匀的考古玻璃
挖掘出的玻璃文物通常受到环境的影响,造成空间的不均匀性,这给准确、无损的化学表征带来了很大的挑战。本文采用激光烧蚀电感耦合等离子体质谱法(LA-ICP-MS)对考古玻璃进行了精确表征,这是一种高精度、最小破坏性的分析方法。本文以云南广南出土的3个腐蚀玻璃珠为例,讨论了观察高度非均匀性考古玻璃信号曲线时可能涉及的问题,并对完整的原始体进行了化学表征。结果表明,这些印太单色珠为硅酸钾玻璃型,使用了矿物钾源,并含有铜作为着色剂。通过讨论非均匀性的广度和深度类型,并关注主要元素所承受的扰动,我们确定了环境变化的程度,并描述了不同元素和基质如何对考古环境做出不同的反应,从而导致不同的腐蚀行为。对于这样的样品,LA-ICP-MS被证明是一种有利的工具,可以提供考古相关信息,或为保护目的探测人工制品的条件。在处理考古玻璃时,需要很好地了解样品条件,并密切关注实验和校准过程,以克服不均匀性。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信