Hints: floodwater catastrophic Mars Iceland Earth Martian

This has given us information about the path that floodwaters took that deposited these boulders. The floodwaters were going in this direction when these rocks were deposited. Now there is other interesting things in the scene here. For instance, notice some of these smaller rocks are very well rounded, and these little nicked corners of these boulders here, these are kind of percussion marks and these are produced in a water, highly turbulent water column when the boulders and rocks are basically slamming into one another, knocking the corners off. These things all grouped together just tell you there’s no doubt this was a catastrophic flood deposit.
The pictures from Mars showed the rocks in exactly the same pattern as on Iceland. Here were the slanting boulders lined up by the floodwaters. And the cameras on the rover provided detailed views of the individual rocks, with their telltale chipped edges. It seemed that the vast Martian channels had been carved by enormous floods. It was final confirmation that Mars had once been warm and wet like the Earth, and that meant that there really was every chance for life to have evolved there.

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