The Eglab massif is widely considered to have been stabilized by the Eburnean orogeny (> 1.7 G.a.). However, sedimentary rocks of the Hank sequence (< 1 G.a.) are locally folded and detached from their Lower Proterozoic (> 1.9 G.a.) crystalline substratum in the eastern part of the massif. Moreover, these rocks and their substratum are: (1) thrusted westward along NNE trending, high angle, reverse faults, and (2) shifted by two sets of strike-slip faults, a dextral NE one, and a sinistral SE one. The displacements were accompanied by reactivation of older, NE trending, dextral, strike-slip faults in the substratum. The deformation diminishes westward. It was due to horizontal compression oriented perpendicularly to the Pan-African suture situated 300 km further to the east. The time of deformation is constrained by an angular unconformity between the rocks of the Hank formation and the uppermost Proterozoic (> 595 M.a.) sedimentary rocks which overlie them horizontally. The deformation is referred to the Pan-African orogeny (500–700 M.a.). The discussed region was situated in the far foreland of Pan-African nappes.