O método magnético e sua aplicação na Bacia do Paraná

Abstract

This work investigated the application of the magnetic geophysical method in the determination of notable geologic features in regards to the search of hydrocarbons in the Parana basin. A geologic characterization of the basin was carried contemplating mainly aspects referring the stratigraphy, structural geology, geochronological evolution and petroleum geology. Besides this the description of the magnetic method was accomplished concerning its theoretical basis, describing relevants practical aspects for its use in field surveys and its specific application regarding the hydro-carbons prospecting. It was works of well-known relevance that indicated the importance of the use the magnetic method for the identification of significant structural features in the dynamics of the regional petroliferous system. It was possible to conclude that, in Parana basin very peculiar geologic features, such as diabase doors-sill over paleozoics sediments (main petroliferous target of the basin), constitutes a limiting factor to a good seismic imaging of the region, and delegates to the potentials methods an important task to add essential information without which one could not perform a correct local geological interpretation.