将手持/便携式光谱工具应用于考古金属文物的鉴定、内部地层学和绘图

IF 4.6 Q1 OPTICS Journal of Physics-Photonics Pub Date : 2024-05-12 DOI:10.1088/2515-7647/ad46a7
Sara Mattiello, Olga De Pascale, Vincenzo Palleschi, Girolamo Fiorentino and Giorgio S Senesi
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引用次数: 0

摘要

野外手持/便携式仪器,如原位地球化学分析仪,有可能帮助有效地开展有针对性的地球化学考古活动,检测和量化特定元素。利用非破坏性便携式能量色散 X 射线荧光和微破坏性手持激光诱导击穿光谱(LIBS)仪器,对从意大利阿普利亚 Minervino Murge 地区不同古墓中采集的五件铜器和两件铁合金器物进行了元素组成、内部地层深度剖面和微尺度成分绘图研究。这两项技术确定的主要元素包括铜合金中的铜、锡和铅,以及铁合金中的铁和少量的铜和铅。此外,还检测到了主要来自土壤污染的 Al、Ca、Si、Mg、Na 和 K 元素,以及微量元素 Sb、Ni 和 Zn。这两项技术的性能令人满意,因为它们都能提供可重复的元素组成数据。最后,LIBS 所实现的深度剖面和绘图有助于了解所研究文物的金属加工和历史,从而证实这两种技术是户外考古和考古测量活动中强有力的分析工具。
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Application of handheld/portable spectroscopic tools to the identification, inner stratigraphy and mapping of archaeological metal artefacts
Field handheld/portable instrumentations, such as in-situ geochemical analyzers, have the potential to assist efficiently targeted geochemical archaeometry campaigns in detecting and quantifying specific elements. Non-destructive portable energy dispersive x-ray fluorescence and micro-destructive handheld laser-induced breakdown spectroscopy (LIBS) instrumentation were utilized to investigate the elemental composition, internal stratigraphy by depth profiling and microscale compositional mapping of five copper and two iron alloy artefacts collected from various ancient graves in the Minervino Murge area, Apulia, Italy. The primary elements identified by both techniques included Cu, Sn and Pb in copper alloys, and Fe with minor amounts of Cu and Pb in iron alloys. Furthermore, the elements Al, Ca, Si, Mg, Na and K, mostly originated from soil contamination, and the trace elements Sb, Ni and Zn were detected. The satisfactory performance of both techniques was assessed by their capacity to provide reproducible elemental composition data. Finally, the depth profile and mapping achieved by LIBS contributed to understanding the metal processing and history of the objects studied, so confirming both techniques to be robust analytical tools in outdoor archaeology and archaeometry campaigns.
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来源期刊
CiteScore
10.70
自引率
0.00%
发文量
27
审稿时长
12 weeks
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