SUMMARY
This paper investigates the feasibility of detecting induced polarization effects in the frequency domain electromagnetic field generated by a large loop placed on the surface. The study uses the vector finite element method to model 3D geoelectrical structures with polarizable regions, and performs comparisons of the field components obtained from models with and without induced polarization effects. The synthetic data simulates surveys of the Electromagnetic MultiFrequency Method, in which the source is a very large loop (hundreds of meters in radius) in a fixed position on the ground and measurements are taken with source-receiver offsets up to a few kilometers. The study is performed with a 3D model simulating a mineral exploration survey. The results indicate quantitatively the level of influence of induced polarization on the electromagnetic field components.
