The use of multi-criteria GIS to analyse the long flint blades of Sardinia, Italy
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Among applications of GIS analysis to archaeological research questions, case studies concerned with defined phenomena in discrete areas, in particular islands (Gaffney & Stančič 1991; Bevan & Conolly 2004) form an ideal subject. Located in the middle of the Mediterranean, Sardinia is thus a perfect place for testing such applications; the object of our analysis is the distribution in this region of long blades produced in a highly specialised environment at the end of the Neolithic (4000–3300 cal BC). These long blades, obtained mainly through pressure flaking, are made on very high quality flint from deposits in the area of Perfugas (Sassari), where a specialist workshop producing such artefacts has been identified (Costa & Pelegrin 2004).

In our case study, GIS was used to provide an analytical tool additional to the techno-morphological study of the entire corpus of 258 artefacts. This was achieved by incorporating the information obtained from the examination of the artefacts themselves into a geodatabase. The data derived from the artefacts were linked with the data pertaining to the geo-environment of Sardinia and interrogated in terms of spatial relationships.

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