Detection of metallic objects in an ancient landfill

The goal of these magnetic measurements was to delineate the extent of the landfill material and to detect a potentially large number of present metallic barrels.

The densely spaced measurements allowed detailed mapping of the site and location of a great number of magnetic anomalies. This proved the presence of numerous metallic waste and barrels.

The mapped anomalies have been validated by electromagnetic measurements and by excavations. An excellent correlation between geophysical measurements and excavations was observed.

Magnetic anomalies mapping allows for precise positioning of metallic waste

Map of the magnetic field in the study area. The strong anomalies were interpreted as metallic objects. Later, excavations confirmed these findings.

Magnetic methods are easily mobilized in all environments
Location Switzerland
Instrument G-858, G-856
Positioning DGPS
Sampling 10Hz
Area 10,400m2
Personnel 2 people
Duration 1 day