An enhanced-color cutout shows a sample of this bedrock, which has a variety of colors and textures. The warm-colored bedrock probably contains hydrated minerals such as clays, whereas the blue-green bedrock is dominated by unaltered mafic minerals. These may be some of the oldest rocks exposed at the Martian surface. Such ancient rocks are extremely rare on Earth.
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This image samples the excellent bedrock exposures north of Terby Crater, which lies on the northern rim of the giant Hellas basin.
Image: NASA/JPL/University of Arizona https://www.uahirise.org/hipod/ESP_045335_1535
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