The research indicates that the water-driven formation of clays predates the erosion of material, suggesting an extensive hydrological cycle on early Mars.
Nearly all intervening material has been removed, leaving remnant mounds, which indicates significant erosion over a vast area of Mars’s surface.
The presence of an ocean on Mars remains uncertain, with some evidence supporting active water cycles and erosion, yet potential alternative processes could explain these features.
The study showcases a complex interplay of geological features that could suggest both oceanic and other erosional processes shaping the Martian landscape.
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