It is known and recognized that Induced Polarization effects can affect the Airborne Electromagnetic measurements. These effects, if not treated properly, can represent a source of artifacts, bad fitting, and false recovered structures during the inversion process. At the same time, recognize and properly model the polarization effects can provide a mapping of the spectral content of the recorded data, adding extra information to the results, and allows to properly model the EM. With this work, we modelled the spectral content of Airborne EM data and compared the results with ground IP measurements acquired in the same area. For the modelling procedure, we propose to use the same approach, in order to be more consistent in the modelling procedure. The data we used are from the Iberian Pyrite Belt, one of the most important mining districts in Europe and with the highest concentration of VMS worldwide. Given the geological complexity of the area and the different signatures of the mineralisation style, with our data integration we aim to evaluate the potentialities of the AIP modelling and its role for exploration.

Open-Access Online Publication: May 29, 2023