Gullies, Arcuate Ridges, and Scalloped Terrain in Acidalia Planitia

This image covers the eastern part of an unnamed crater located in the northern lowlands,
showing features such as gullies, arcuate (bow-like) ridges, and scalloped terrain,
that may indicate the presence of ice-rich materials near the surface. This observation is
in agreement with theories proposing that some Martian gullies could form by melting
of an ice rich-mantle deposited under different climatic conditions.

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PSP 006690 2280 RED thumb

PSP 006690 2280 RED thumb

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Uploaded: February 21, 2008
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