HiRISE (NASA)
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HiRISE 3D: From Fluvial Ridges to Flat-Lying Rock

There is an active hypothesis that most of Aeolis Dorsa is flat lying rock that has been eroded to make a deep trough and expose river strata. This image may capture that exact process - the erosion of flat lying river stratigraphy to create very steep and 3D fluvial ridges.

uahirise.org/anaglyph/ESP_0844
NASA/JPL-Caltech/University of Arizona

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