LE OSSIDIANE DI PALMAROLA I MARKER DI PROVENIENZA

Andrea Macchia, A. Manda, L. Campanella, S. Plattener, D. Ferro, M. Tiepolo, M. Ferretti, M. Malorgo, A. Zarattini

Abstract


Le tracce di ossidiane e la caratterizzazione delle componenti chimiche presenti nei luoghi oggetto di indagini archeologiche, permettono l'individuazione delle antiche rotte commerciali. In Italia le aree individuate sono Monte Arci in Sardegna, Lipari e Pantelleria in Sicilia e Palmarola nel Lazio.

 

Obsidian  from  Palmarola:  source  markers

A  chemical  characterization  of  the  main  components  and  traces  of  obsidian  allows identifi cation  of  commercial  routes  in  antiquity.  Obsidian  sources in Prehistoric Italy were mainly four: Monte Arci in Sardinia, the islands of Lipari and Pantelleria in Sicily and the island of Palmarola in Lazio. A survey methodology on samples of obsidian from several Neolithic sites in Lazio has been developed, comparing three different analytical techniques: SEM-EDS, XRF and LA-ICP-MS, in order to obtain a wider range of data to be compared with literature records and processed by Principal Component Analysis (PCA), to defi ne relationships between samples and to assign each finding its origin.


Parole chiave


Ossidiana; Lazio; SEM-EDS; XRF; LA-ICP-MS

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