Non-destructive Electrical Resistivity Tomography Survey at the South Walls of the Acropolis of Athens

作者：Tsourlos P I^*; Tsokas G N

来源：Archaeological Prospection, 2011, 18(3): 173-186.

DOI：10.1002/arp.416

• Electrical resistivity tomography
• inversion, non-destructive survey
• Athens Acropolis
• bentonite electrodes
• wall testing

We present the application and results of a fully non-destructive electrical resistivity tomography (ERT) survey conducted at the Acropolis of Athens. The aim of the survey to investigate the space behind the south wall of the Acropolis. The electrode lines were deployed vertically and horizontally on the wall as well as on the top of the hill. Further ERT tomographies were conducted encompassing the volume of the material between the outer wall and inner open pits. Bentonite mud electrodes were employed instead of metal stakes in order to comply with the non-destructive character of the whole operation. An existing ERT data processing algorithm was modified to cope with the particular requirements of this unconventional survey. Areas of increased moisture were revealed in the prospected volumes. Further, the thickness of the wall was assessed in particular locations. It is shown that this type of survey is perfectly feasible and can produce informative results and elucidating images for archaeologists and restoration scientists.

• 出版日期2011-9