Interpretation of the geomagnetic anomalies in the S?o Francisco craton region based on champ mission data.

O presente trabalho apresenta as discuss?es dos resultados da an?lise de dados magnetom?tricos provenientes da miss?o CHAMP (CHAllenging Minisatellite Payload), que constituem o modelo geomagn?tico da litosfera MF4 (Magnetic Field), visando o avan?o no conhecimento da estrutura??o litosf?rica da regi?o do Cr?ton S?o Francisco. Estudos geof?sicos nesta ?rea tem sido realizados desde a d?cada de 1970, fornecendo um conhecimento da crosta e do manto litosf?rico/astenosf?rico com um razo?vel grau de detalhamento e confiabilidade. Os mapas magnetom?tricos baseados no modelo MF4 apresentaram resultados satisfat?rios que possibilitaram associar as estrutura??es resultantes de alguns eventos tect?nicos distintos de orogenias de n?cleos continentais e para margens passivas, envolvidos na geodin?mica da por??o litosf?rica em quest?o.This paper presents the results of the analysis of magnetic data from the CHAMP mission (CHAllenging Mini-satellite Payload), based on the MF4 (Magnetic Field) magnetic model of the lithosphere aiming at a better understanding of the lithospheric structure of the S?o Francisco Craton region. Geophysical studies have been conducted in this area since the 1970s, providing information on the crust and on the lithospheric/asthenospheric mantle with a reasonable degree of detail and reliability. Magnetometric maps constructed from the model discussed here show satisfactory results that allowed for the association of different tectonic events (orogeny, continental passive margins) that occurred during the geodynamic evolution of the lithospheric area in question