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Valley formation on early Mars by subglacial and fluvial erosion

Osinski, Gordon R.; Grau Galofre, Anna; Jellinek, A. Mark

The southern highlands of Mars are dissected by hundreds of valley networks, which are evidence that water once sculpted the surface. Characterizing the mechanisms of valley incision may constrain early Mars climate and the search for ancient life. Previous interpretations of the geological record require precipitation and surface water runoff to …