Characterisation of Late Bronze Age large size shield nails by EDXRF, micro-EDXRF and X-ray digital radiography

Figueiredo, Elin; Araújo, M. Fátima; Silva, R.J.C.; Senna-Martinez, João Carlos; Vaz-Luís, I.

doi:10.1016/j.apradiso.2011.04.027

Cited by 25 publications

(17 citation statements)

References 16 publications

(18 reference statements)

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“…Indeed, the growing concern towards these issues has led to a decrease in invasive analytical approaches. Within this context, X-ray fluorescence spectroscopy (XRF) has become a routine and relatively low-cost technique for a nondestructive analytical approach to compositional studies of archeological objects, including metals, also due to the increased accessibility of easy to use and miniaturized X-ray detectors and tubes with built-in calibration software (Figueiredo et al 2011;Bottaini et al 2012;Schiavon et al 2013;Bottaini et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Multi-analytical study of ceramic pigments application in the study of Iron Age decorated pottery from SW Iberia

et al. 2018

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Your article is protected by copyright and all rights are held exclusively by Springer-Verlag Berlin Heidelberg. This e-offprint is for personal use only and shall not be selfarchived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com". Abstract In this study, Monte Carlo (MC) simulations combined with energy dispersive X-ray fluorescence (EDXRF) spectroscopy have been used to characterize nondestructively a collection of Cu-based artifacts recovered from two archeological sites in southern Portugal: (a) the Chalcolithic E.T.A.R. site of Vila Nova de Mil Fontes and (b) the Middle Bronze Age site of Quinta do Estácio 6. The metal artifacts show a multilayered structure made up of three distinct layers: (a) brownish carbonate soil-derived crust, (b) green oxidized corrosion patina, and (c) bulk metal.In order to assess the reliability of the EDXRF-based Monte Carlo simulations to reproduce the composition of the alloy substrate in archeological bronze artifacts without the need to previously remove the superficial corrosion and soil derived patinas, EDXRF analysis together with scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) was also performed on cleaned and patina-/crust-coated areas of the artifacts. Characterization of the mineralogical composition of the corrosion products in the surface patinas was further determined by means of X-ray diffraction (XRD). Results suggest that the adopted EDXRF/Monte Carlo protocol may represent a safe and fast analytical approach in the quantitative characterization of the bulk chemical composition of Cubased metal artifacts even in the presence of fairly thick corrosion patinas and/or soil-derived encrustations at the surface of the archeological objects.

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Section: Introductionmentioning

confidence: 99%

Multi-analytical study of ceramic pigments application in the study of Iron Age decorated pottery from SW Iberia

et al. 2018

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“…Contexts of deposition and topographic location are often only briefly described. Moreover, ‘technology of hoards’ is still quite unknown: despite recent studies about metal findings from Final Bronze Age settlement from Central Portugal, a few of hoards found in this region have been adequately analyzed …”

Section: Introductionmentioning

confidence: 99%

“…Contexts of deposition and topographic location are often only briefly described. Moreover, 'technology of hoards' is still quite unknown: despite recent studies about metal findings from Final Bronze Age settlement from Central Portugal, [5][6][7][8][9] a few of hoards found in this region have been adequately analyzed. [10] This paper focuses on the chemical characterization of three metallic hoards from the FBA of Central Portugal: Casais da Pedreira (Abrigada, Alenquer), Moinho do Raposo (Alenquer) and Vila Cova de Perrinho (Vale de Cambra) ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Energy dispersive X‐ray fluorescence analysis of archeological metal artifacts from the Final Bronze Age

et al. 2012

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Energy dispersive X‐ray fluorescence (EDXRF) is widely used in the study of archeological metal artifacts, heritage and art history, where the fragile nature of the objects requires the use of noninvasive techniques such as the EDXRF, which in addition, is fast and very affordable. An EDXRF analysis of copper‐based artifacts from Late Bronze Age metal hoards from Central Portugal is presented. The EDXRF measurements were carried out by using an X‐ray tube with a Mo anode and a commercial Si‐PIN detector. The data acquisition was performed by keeping small distances between the X‐ray window, the sample and the detector. Both patinated and polished areas were analyzed: the relative composition of the artifacts was inferred from the fluorescence spectra obtained. Copyright © 2012 John Wiley & Sons, Ltd.

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“…These methods are nondestructive and based on the differences in the attenuation of X‐rays by different materials. Their importance is growing in archeological area for structural/investigative analysis of artifacts , especially when the digital version with a plat panel is used .…”

Section: Introductionmentioning

confidence: 99%

Analysis of precious metals from the tomb of the “Lady of Cao” by X‐ray microtomography and digital radiography

Azeredo

Cesáreo

Jordán³

et al. 2019

X-Ray Spectrometry

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Investigative analyses of metallic objects from the tomb of a queen of the Moche civilization, who lived around 100 to 300 AD in the northern coast of current Peru, known as Lady of Cao, have been carried out by researchers in the last 4 years using various destructive techniques. Many of these objects found inside the tomb are jewelry produced using silver, gilded copper, copper, and gold sheets. The application of X‐ray microtomography (μCT) and X‐ray digital radiography techniques using a portable system had the objective of obtaining more information on the structures of the objects studied, and thus to obtain some evidences about the production methods used by Moche artisans. In this way, radiographic and microtomographic images were acquired, and qualitative and quantitative analyses were performed. A fish in gold and a nose decoration in silver were examined by radiographic methods, whereas a silver earring and a gold needle were analyzed by μCT. Important information on the structure of these objects were gained.

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Characterisation of Late Bronze Age large size shield nails by EDXRF, micro-EDXRF and X-ray digital radiography

Cited by 25 publications

References 16 publications

Multi-analytical study of ceramic pigments application in the study of Iron Age decorated pottery from SW Iberia

Multi-analytical study of ceramic pigments application in the study of Iron Age decorated pottery from SW Iberia

Energy dispersive X‐ray fluorescence analysis of archeological metal artifacts from the Final Bronze Age

Analysis of precious metals from the tomb of the “Lady of Cao” by X‐ray microtomography and digital radiography

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