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Publication . Article . 2021

Multispectral analysis of miniature nuragic bronze flasks

Carlo Nocco; Francesca Assunta Pisu; Daniele Chiriu; Anna Depalmas; Sergio Augusto Barcellos Lins; Antonio Brunetti;
Open Access
English
Published: 11 Aug 2021
Country: Italy
Abstract

Miniaturized bronze flasks represent a small portion of a wide metallurgical production that flourished in Sardinia (Italy) between the Final Bronze Age (FBA) and the Early Iron Age (EIA). They replicate a well-known and symbolic type of object, the pilgrims’ flask, common in all Europe and Mediterranean basin, and have but few archaeological parallels. For these reasons, their characterization can be considered important from an archaeological perspective. Three flasks, preserved at the Antiquarium Arborense museum (Oristano), were analyzed by X-Ray Fluorescence Spectroscopy (XRF) and Raman spectroscopy, integrated by multispectral images. The samples, coming from illegal excavations, posed two problems: establishing their authenticity and investigating the alloy composition of such particular objects. All specimens presented a widespread degradation in the outer surface: XRF and Raman spectroscopy indicated the presence of copper oxides, calcium and copper carbonates deposits. The abscence of Zn, a clear marker of forgeries, was not detected by XRF. In two of the flasks, an unusual Sn content above 20%, was detected. For FBA and EIA, especially regarding southern Europe, Sn was extremely rare, and was possibly used with caution. Further results are presented herein.

Subjects by Vocabulary

Microsoft Academic Graph classification: Iron Age Alloy composition Bronze Age Laboratory flask Geology Multispectral image Copper chemistry.chemical_element chemistry Bronze engineering.material engineering Archaeology

Subjects

Sardinia; miniature bronze objects; pilgrim flask; XRF; Monte Carlo; raman, Sardinia, miniature bronze objects, pilgrim flask, XRF, Monte Carlo, raman, Archaeology, CC1-960, Materials Science (miscellaneous), Archeology, Conservation

Funded by
EC| ED-ARCHMAT
Project
ED-ARCHMAT
European Doctorate in ARchaeological and Cultural Heritage MATerials science
  • Funder: European Commission (EC)
  • Project Code: 766311
  • Funding stream: H2020 | MSCA-ITN-EJD
,
EC| ED-ARCHMAT
Project
ED-ARCHMAT
European Doctorate in ARchaeological and Cultural Heritage MATerials science
  • Funder: European Commission (EC)
  • Project Code: 766311
  • Funding stream: H2020 | MSCA-ITN-EJD
Related to Research communities
Digital Humanities and Cultural Heritage
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Article . 2021
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