3D Inversion and Interpretation of Geophysical Anomalies Related to the Tapira Alkaline Complex- Mg

The Tapira Alkaline Complexis the southernmost of a series of intrusions containing carbonatites in the Alto Paranaíba region, MG. The gammaspectrometric and magnetometric data used for this study are from aerosurveys acquired by CODEMIG on the so called ‘Area 7’. Reduction to the Pole and Anomalous Magnetic Field Amplitude methods were applied to the aeromagnetic data, aiming to minimize or to attenuate the remanent component before performing 3D inversion. The 3D models were compared with the one obtained by the inversion of the ground gravity data achieved for the alkaline. The gammaspectrometric data were used to identify the signature of the main structures in the studied region, so as to analyze the radiometric response of the alkaline’s outcrops.