[Husker24]

A very very very fine powder can act just like a liquid, thats what im guessing is happening here.

[blam]

"A very very very fine powder can act just like a liquid, thats what im guessing is happening here."

I heard them describe it as being like talcum powder. I have often wondered why there are sharp edged rocks on Mars after reading about 200 mph dust storms there.

[DefCon]

Like you, I think 'fine dust' is a much more logical answer than 'mud'.