In this research, the time domain electromagnetic method (TDEM) was used for groundwater exploration aiming to map the sedimentary and crystalline aquifers in the Paraná Basin.The TDEM acquisition data was made through fixed transmitter loop technique (Tx) and a mobile 3D-coil receiver (Rx).The data analysis of the secondary magnetic field from measurements with 3D Rx coil aimed to understand how these fields dissipate in the subsurface and relate them to the sediments and the structures present within the basalt layer of the Serra Geral Formation in the Parana basin.The interpretation of varied subsurface geometries and structures was made through individual inversions of the z-component data (Bz) and the geoelectric models obtained by a process of lateral interpolation.The individual components provided additional information on the induced magnetic field behavior and its dissipation in the subsurface.Results of resistivity measurements by electric tomography technique were correlated with the TDEM profiles in order to make an integrated interpretation, together with lithological information from available wells in the study area.The results are promising and contributed to the mapping of shallow sedimentary aquifer (Adamantina Training) and the crystalline aquifer characterized by the presence of fractures in the basalt layer in the Serra Geral formation that can be filled with water.This research will have direct applications in hydrogeological studies in the area of Ibirá, state of São Paulo.