The Atlantic margin offshore Senegal has been explored by seismic reflection and GRAV-MAG surveys. High-amplitude, laterally transgressive seismic reflectors are found to coincide with gravimetric and magnetic highs. Once seismic data are
integrated with potential fields modelling, these reflectors can
be safely interpreted as saucer-shaped igneous sills, up to some hundreds of metres thick, some km wide. The occurrence of hydrothermal vent complexes and forced folds in the stratigraphic sequence above the sills constrain the intrusion age to the Miocene. Field observations and in-situ magnetic susceptibility
measurements of Oligocene–Miocene and Quaternary igneous rocks emplaced in coastal Senegal support this interpretation
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.