Geophysical modeling of Serra Negra and Salitre I, II and III alkaline-carbonatite complexes based on their gravimetric and magnetic signatures

The alkaline complexes of Serra Negra and Salitre I, II and III are part of the Alto Paranaíba Igneous Province (APIP), which has been subject of many mining projects due to its important content in mineral resources as phosphates, niobium, titanium, among others. The gravimetric and magnetic anomalies caused by the complexes displays mutual interference becoming difficult to suit individual interpretations. This paper shows the results of 3D modelling of the anomalies and compares the results with the geological known information.