17. Buried Crater Overlying sediments have almost completely buried this 27-km-diameter crater. Only the outline of its rim indicates its existence. 64.02° N, 90.74° W; Viking Orbiter frame 701B59 The planetary environment is largely responsible for the appearance of impact craters and their interior and ejecta morphologies. Volcanic, tectonic, aeolian, and fluvial activity have modified the appearance of most martian impact craters. Right
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