On 08 Jan 2004 04:28:15 GMT, (Patrick) wrote:

I think you guys are forgetting the time scale. The water
probably flowed 3 billion years ago. The rocks were deposited
by crater impacts later. A couple of billion years is plenty of
time for dust in the atmosphere to round the rocks.



It should be easy to tell the difference once the rover gets moving.
River-eroded rocks would tumble, and be eroded on all sides. Wind-eroded
rocks (above a certain size) would be more eroded on the side facing the
prevailing winds. Also, those embedded in the soil should not be much eroded
on the buried portions.