Hoodoo. Hoodoos are composed of sedimentary rock with a slightly harder stone on top, which results in an unusual capped shape when eroded over time.

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Hoodoo. Hoodoos are composed of sedimentary rock with a slightly harder stone on top, which results in an unusual capped shape when eroded over time. This hoodoo (centre left) is composed of sandstone rock and has been shaped by sandstorms and occasional heavy rains, gradually forming a spire. Photographed in Tassili du Hoggar in southern Algeria.

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Size: 4948px × 3363px
Photo credit: © GJLP/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: africa, african, algeria, algerian, arid, column, desert, differential, du, eroded, erosion, feature, geographical, geography, geological, geology, geomorphology, hoggar, hoodoo, landform, najjer, physical, pillar, pinnacle, rock, sahara, saharan, sand, sandstone, sedimentary, spire, tassili