Neoproterozoic amalgamation and Phanerozoic reactivation of Central/Western Hoggar (Southern Algeria, Tuareg Shield) lithosphere imaging using Magnetotelluric data

•Magnetotellurics is used to image the electrical lithosphere of Central/Western Hoggar.•We identify a mega shear zone associated with the formation of Gondwana.•High-conductivity anomalies are caused by fluid flow combined with mineralization.•Boundaries between blocks with different conductivity represent passive/active margins.•Phanerozoic reactivation was caused by Cretaceous rifting and Cenozoic volcanism.