How to Explain Structures of an Ancient Civilization Found Beneath the Cabras Pond (Sardinia- Italy)?

A prehistoric necropolis flanked by a road (the heroon) was discovered over 50 years ago, with the unearthing of stone fragments of human statues. Its origin is probably Nuragic, the people who inhabited Sardinia at least since the second millennium B.C. The site is called Mont’e Prama. In the last decades, some joint archaeological and geophysical projects have studied the area and its surroundings (over more than 16 hectares), leading to new archaeological findings. Within these projects also the neighboring pond was investigated with continuous electrical resistivity tomography (floating electrodes) and acoustic methods (sub-bottom profiler). To reconstruct the importance of the lagoon environment on the birth and development of the historical Mont’e Prama landscape was the main goal of this survey. Some preliminary results are here presented and discussed with potential interpretative scenarios and future deepening and widening investigations. A few examples of the geophysical evidence are given, also in the framework of an integrated multi-methods interpretation.