ARHEOLOŠKI VESTNIK ARHEOLOŠKI VESTNIK
Inštitut za arheologijo ZRC SAZU
ARHEOLOŠKI VESTNIK 56, 2005
Žiga ŠMIT, Janka ISTENIČ, Viktor GERDUN, Zoran MILIĆ and Ana MLADENOVIČ:
Archaeometric analysis of Alesia group brooches from sites in Slovenia
Abstract
The methods of X-ray fluorescence, proton-induced X-ray emission (PIXE) and scanning electron microscopy (SEM) were used for analysis of 18 brooches of the group Alesia from Slovenian sites. XRF served for an approximate determination of the alloy composition. For the analysis with PIXE, up to seven areas were selected on each brooch. Basic alloy was determined in the areas from which we removed the corrosion layer down to the metal core; in the other areas we measured the corroded surfaces with an aim to detect tinning, silvering or other type of plating. The scanning electron microscope was mainly used for explanation of a high percentage of tin at the surface of the brooch No.5.
It was found out that fourteen brooches were made of brass, one of gunmetal and three of bronze. The analysis showed further that some of the brooches (made of brass and bronze) were tinned.
Keywords: brooches of the group Alesia, archaeometry, XRF, PIXE, SEM EDX
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