Scientists have demonstrated that frozen water in the form of snow or frost can melt to form debris flows on sunward-facing slopes of sand dunes in the Alaskan arctic at air temperatures significantly below the melting point of water. The debris flows consist of sand mixed with liquid water that cascade down steep slopes.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/y...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/y...