GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 3.1 GNGTS 2024 Conclusions This study shows encouraging results in the using of the Airborne Induced Polarizaton for chargeability mapping for airborne-scale areas. In partcular it results that: ● Reducing the equivalences in the AEM-IP modelling is a key to unlock the understanding of the AIP sensitvity to geological and mineral targets. ● For this case study, the airborne chargeability shown sensitvity to deep chargeable bodies. ● All of the airborne chargeability anomalies have been confrmed from the ground DCIP models, demonstratng an overlapping feld of sensitvity between the methods. ● Known mineralizatons have been mapped with the AIP. ● The joint inversion between the DCIP and the AIP is possible and shows how the AEM data not only is compatble with the joint model, but also contribute in the chargeability mapping. References Bollino, A., Fiandaca G. (2024). Full-decay spectral modelling of tme-domain induced polarizaton decoupling model and forward meshes. GNGTS 2024, 13-16 February 2024, Ferrara, Italy. Fiandaca, G., Gazoty, A., Auken, E., & Christansen, A. V. (2012). Time-domain-induced polarizaton: Full-decay forward modeling and 1D laterally constrained inversion of Cole-Cole parameters. Geophysics, 77, E213-E225. Fiandaca, G., Ramm, J., Binley, J., Gazoty, A., Christansen., A.V., Auken, E., Resolving spectral informaton from tme domain induced polarizaton data through 2-D inversion, Geophysical Journal Internatonal, Volume 192, Issue 2, February 2013, Pages 631–646. Fiandaca, G., Madsen, L.M. and Maurya, P.K. (2018), Re-parameterisatons of the Cole–Cole model for improved spectral inversion of induced polarizaton data. Near Surface Geophysics, 16: 385-399. Fiandaca, G., Zhang, B., Chen, J., Signora, A., Daut, F., Galli, S., Sullivan, N.A.L., Bollino, A., Viezzoli, A. (2024). EEMverter, a new 1D/2D/3D inversion tool for Electric and Electromagnetc data with focus on Induced Polarizaton. GNGTS 2024, 13-16 February 2024, Ferrara, Italy. Inverno, C. & Díez-Montes, A. & Rosa, Carlos & Garcia-Crespo, Jesus & Matos, João & García- Lobón, J. & Carvalho, João & Bellido, F. & Castello-Branco, J. & Ayala, Conxi & Batsta, M. & Rubio, Felix Manuel & Granado, Isabel & Tornos, F. & Oliveira, Jose & Rey, C. & Araujo, Vitor & Sanchez-Garcia, Teresa & Pereira, Zelia & Sousa, P., (2015). Introducton and Geological Setng of the Iberian Pyrite Belt. 10.1007/978-3-319-17428-0_9. Kratzer, T. and Macnae, J., 2012, Induced polarizaton in airborne EM, Geophys-ics, 77(5), E317– E327. Oldenburg, D.W. & Li, Y., 1994. Inversion of induced polarizaton data, Geophysics, 59, 1327–1341. Leistel, J.M., Marcoux, E., Thieblemont., D., Quesada, C., Sanchez, A., Almodovar G.R., Pascual, E., Saez, R., (1998). The volcanic-hosted massive sulphide deposits of the Iberian Pyrite Belt. Review and preface to the special issue: Mineralium Deposita, v. 33, p. 2-30