Testone, Valeria (2013) Integrated geophysical methods applied to some archaeological sites of North Sardinia. Doctoral Thesis.
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This study deals with the employment of a multimethod geophysical survey, electrical (Electrical Resistivity Tomography) and electromagnetical (Ground Penetrating Radar) carried out on two archaeological sites near shore archaeological sites.
For this purpose the settlements of Sant'Imbenia (Alghero, SS) and Santa Filitica (Sorso, SS), two Roman villas located in northern Sardinia were considered.
The focus of the paper is to assess as the geophysical response of different instruments might be impacted by different moisture conditions and archaeological contexts.
The electromagnetic surveys were conducted in reflection mode, using a monostatic GPR, working simultaneously by two transmitters (frequency of 200 and 600 MHz) and two receivers, while the electrical surveying was conducted with a Terrameter SAS 1000 device combined with ES 10-64 electrode selector.
The 2D and 3D high-resolution models revealed a distribution of shallow anomalies that indicate the presence of buried structures (walls and filled cavities) in the surveyed areas.
A comparison of the results was made, checking the relative merits and demerits of the different techniques in the two coastal archaeological sites.
The integration of geophysical methods has provided useful information to design a more efficient plan for further archaeological excavations.
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