Integrated Gravity and Magnetic Workflows in Regional Basin Analysis, a South and Equatorial Atlantic Exploration Perspective

The regional geology and evolution of the South and Equatorial Atlantic rift basins is challenging to unlock using purely reflection seismic- and well-based interpretation, largely due to poor coverage or uncalibrated seismic imaging, and a limited number of well penetrations, respectively. In this paper, we present a workflow emphasizing a holistic, “bottom-up” approach where:<br>(i) Analysis of the basement terranes beneath and adjacent to the basin margins and plate reconstructions are used to extract basin tectonic elements and predict structural styles<br>(ii) Innovative, integrated use of gravity, magnetic, and seismic data are used to interpret topbasement depth, morphology, and structure<br>(iii) Regional, crustal-scale cross sections and horizon interpretations are interpreted using steps<br>(i) and (ii) above, and subsequently restored in 2D and 3D, to validate structural geometries, illustrate basin kinematic evolution, and the timing of key petroleum system elements