The Monte Arci obsidian: new fingerprint approaches in provenance studies

G. POUPEAU1 , F.-X. LE BOURDONNEC1, M. DUTTINE1, G. VILLENEUVE1; S. J. STEWART; R. B. SCORZELLI

Italia

Simposio; Proceedings 2nd Colloquium on the Monte Arci obsidians (Sardinia in the Mediterranean),; 2003

Obsidians of the four Monte Arci geochemical groups relevant to Neolithicprovenance studies were characterized by Mössbauer (MS) and infrared (IRS)spectroscopies, Raman microspectroscopy (RMS), magnetic properties (MP),electron spin resonance (ESR) and particle induced X-ray emission (PIXE).We show that these methods can discriminate, in addition to obsidians fromother Western Mediterranean islands, the SA, SB and SC Sardinian groups(MS, MP, IRS) and eventually the SB1 and SB2 subgroups (MRS, ESR,PIXE).