QUOTE (djellison @ Apr 7 2005, 04:19 AM)
There's some elevation in there I think.
For those that use 3d programs - take something like eagle crater - then scale it in X and Y only ( not Z ) by 10000% - and I think that's what erebus will be like
It looks like Erebus' walls are still partially intact along some arcs of the old circle. I think you're right, the crater itself looks completely filled in, such that the landform is going to look from the ground like a very low ringwall sticking up a foot or two from the plains.
It may not give us any deeper layering into the evaporite, but the ringwall of Erebus *is* the very rim of a crater roughly half the size of Victoria. Certainly a much larger impact structure than we've visited thus far. So it's possible that some of the rocks exposed in and around the ringwall will come from *much* deeper than we've yet seen.
Of course, those rocks may well be the basalts that underlied the sea and provided a base for the evaporite layer... we'll just have to wait and see.
In any event, it seems to me that there *may* be a Burn's Cliff sticking right out of the sand up there at Erebus, right within easy reach all along its height and breadth... I can't wait to see!
-the other Doug