March 19, 2004

"Paul Henney" wrote in message :

The answer my friend is blowin in the wind.......

Literally.

You can see it piled hundreds of meters high in the centers of some of
the larger craters. Not the small aeolian salt and sand dunes you see
everywhere water was removed from the surface strata, but the really
big dark crescent shaped dune fields in the really large craters,
presumably made out of the sub-micron fines.

That's the stuff.

Thomas Lee Elifritz
http://elifritz.members.atlantic.net