Sandstone layers that have been tilted and then eroded by runoff water can sometimes form zigzag shapes - they occur frequently in the semideserts of

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Sandstone layers that have been tilted and then eroded by runoff water can sometimes form zigzag shapes - they occur frequently in the semideserts of the southwestern United States, in the area of the Colorado Plateau, where these formations are described as 'flat irons'.

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Photo credit: © BERNHARD EDMAIER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: aerial, desert, earth, earth-coloured, environment, erosion, flat, geography, geology, image, irons, layers, photograph, red, rock, runoff, sandstone, science, semidesert, southwest, states, tectonics, tilted, united, uplift, usa, water