Figure 52

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Maraldi, a 45 km impact crater, was shown in its regional context in figure 50. Its rectilinear shape is in striking contrast to the circular or oval shape of most lunar impact craters. Faulting along northwest and northeast planes, probably generated by the Imbrium event, is the cause of the unusual configuration of its walls. Debris aprons form a narrow but continuous terrace along the base of the crater wall. The high rate of mass wasting on the steepest slopes is proven by the low density of craters superposed on the crater walls in contrast to that of the much younger mare surface in the floor of Maraldi. Ultimately, as depicted near the north edge of the picture, landforms evolve toward rounded forms partly buried under their own debris aprons.

Report Source: NASA SP-362, Page 62, Figure 52

This web page was created by Francis Ridge for The Lunascan Project
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