Tag Archives: outwash fans

HiRISE: Fresh shallow valleys and fans in north Arabia Terra

Fresh shallow valleys and fans in north Arabia Terra. Beautiful Mars series.

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HiRISE: Fans, layers, & channels in Roddy Crater

Fans, layers, and channels on the floor of Roddy Crater. Beautiful Mars series.

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Making fans all over

Water and sediment run downhill, on Earth and Mars alike. And when they do, they build broad alluvial (outwash) fans at the foot of slopes. But how fast do these fans accumulate? On Mars, at least, it looks like they … Continue reading

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