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Application of the new OhmMapper (GEOMETRICS-US) resistivity-meter for subsoil investigation in the Greek sanctuary of Medma Colony (Rosarno, Italy)

Marta Bottacchi (Centro di GeoTecnologie - Siena University)
Maria Teresa Iannelli (Soprintendenza per i Beni Archeologici per la Calabria)
Fabio Mantovani (Centro di GeoTecnologie - Siena University)
Maurizio Paoletti (Università della Calabria)
Gianluca Sapio (Centro di GeoTecnologie - Siena University)

Abstract

The Greek colony of Medma is localized under the modern Rosarno city (Reggio Calabria – Italy); in particular, the eastern part of the city was occupied by some Greek sacred areas. We carried out an OhmMapper (Geometrics–US) archaeological resistivity survey in the region occupied by the ex-municipal slaughterhouse, now disused. Under a restricted area of the cement pavement of these buildings a little part of the structures of a Greek sanctuary (VI-II century B.C.) was brought to light. The data acquired by the resistivity survey were used to create some 2D and 3D models of the subsurface; in these models it is possible to individuate with good precision the geometry and the depth of some other archaeological elements. These results helped us to reconstruct the trend of the 'temenos' wall and the localization of the main structures concerning the Greek sanctuary, without invasive and time-consuming stratigraphic excavation.