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This black-and-white orbital image shows elongate, teardrop-shaped layers of rock stacked atop each other and viewed from above. To the left and right, the layers drop off as sharp cliffs to sandier surfaces below.
Full Res JPG (1.4 MB)

Rock Layers Exposed by Wind

Erosion has exposed light-toned, layered rocks on the northern rim of Hellas Basin, the largest impact crater on Mars. Details in the layering seen in this image from the High-Resolution Imaging Science Experiment reveal variations in brightness that may indicate differing mineralogies.

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Credit: NASA/JPL-Caltech/Univ. of Arizona

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