Fibulae from the archaeological site of Egnatia (Fasano, Brindisi, ITALY) were examined by Laser Ablation Inductively Coupled Plasma Mass Spectrometry, micro-Raman Spectroscopy, Optical and Scanning Electron Microscopy with the aim of identifying kinds of alloys, process employed for their manufacturing and outlining the degrade. Obtained results, identifying the raw materials and the technological solutions used, allowed us to give convincing answers to the most part of archaeological questions: correct classification, dating and provenance of finds and confirmed the integration of Egnatia in a complex commercial network by sea because the significant port area along the Adriatic coasts and by land because the important Southern Adriatic arterial road. In addition, investigations refereed to the study of corrosion products in order to add a piece of knowledge in degradation mechanisms of ancient metallic items- nature of decay products, their depth distribution, correlation between patina nature and chemical composition of both, the underneath alloy and burial context – with a view to the planning more suitable restoration and preservation strategies.
A systematic characterization of fibulae from Italy: from chemical composition to microstructure and corrosion processes
DE BENEDETTO, Giuseppe, Egidio;
2013-01-01
Abstract
Fibulae from the archaeological site of Egnatia (Fasano, Brindisi, ITALY) were examined by Laser Ablation Inductively Coupled Plasma Mass Spectrometry, micro-Raman Spectroscopy, Optical and Scanning Electron Microscopy with the aim of identifying kinds of alloys, process employed for their manufacturing and outlining the degrade. Obtained results, identifying the raw materials and the technological solutions used, allowed us to give convincing answers to the most part of archaeological questions: correct classification, dating and provenance of finds and confirmed the integration of Egnatia in a complex commercial network by sea because the significant port area along the Adriatic coasts and by land because the important Southern Adriatic arterial road. In addition, investigations refereed to the study of corrosion products in order to add a piece of knowledge in degradation mechanisms of ancient metallic items- nature of decay products, their depth distribution, correlation between patina nature and chemical composition of both, the underneath alloy and burial context – with a view to the planning more suitable restoration and preservation strategies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
