Deep conductivity structure beneath the northern Brasília belt, central Brazil: Evidence for a Neoproterozoic arc-continent collision

► MT data image lithospheric heterogeneity beneath the northern Brasília belt, Brazil. ► Data reveal effects of multiple tectonic episodes on current conductivity structure. ► A high conductivity anomaly is present at upper mantle depths below the Goiás massif. ► Interpreted as a signature of thermal events in the Neoproterozoic ► Oceanic lithosphere subduction can also have contributed to the conductivity anomaly.