“…These ancient weathering profiles are overlain by Fe duricrusts, which probably began armoring the landscape with the onset of weathering (Monteiro et al, ; Shuster et al, ). Depth and lateral continuity of the duricrusts vary across the region, where the highest‐elevation plateaus are capped by the deepest (up to 70 m according to Carlos et al, ) and most continuous canga blankets (e.g., Serra do Gandarela, Figure b) (Baltazar et al, ). Low‐elevation plateaus are overlain by intermittent and shallower cangas (up to 30 m) (e.g., Serra da Moeda, Figure b) (Baltazar et al, , ), whereas the narrowest and mostly discontinuous ridges are blanketed by intermittent cangas (e.g., Serra das Serrinhas, Figure b) (Baltazar et al, , ).…”