Victoria Crater is currently being visited by the Opportunity MER. Why isn't the crater filled with sand?

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Victoria Crater is currently being visited by the Opportunity MER. Why isn't the crater filled with sand?

As you can see from this photograph, part of the Victoria Crater being visited by the Mars Exploration Rover Opportunity is filled with sand.

http://wohba.com/blogimages/craters0406.jpg

Why hasn't it been completely filled?

2006-12-26 08:59:53 · 2 answers · asked by Zefram 2 in Science & Mathematics ➔ Earth Sciences & Geology

2 answers

It is beacue the erosional forces are much weaker than they are on earth. Little water (at least now... probably), little wind.

2006-12-26 09:07:38 · answer #1 · answered by QFL 24-7 6 · 2⤊ 0⤋

it is filled with sand!
it is the quarry site for the martians!

2006-12-26 17:02:52 · answer #2 · answered by Random Guy 2 · 0⤊ 2⤋