prometheus
Apr 25 2006, 03:15 AM
Click to view attachmenthttp://hiroc.lpl.arizona.edu/first_images/...0002_0000.shtmlThe material flowing down the crater wall gullies seems to be partly infilling the small crater at the bottom.
RNeuhaus
Apr 25 2006, 03:28 AM
The down marks looks more like a gravity fall erosion. I don't see any gullies.
Rodolfo
Richard Trigaux
Apr 25 2006, 07:20 AM
Gravity fall??
It would be a bit of a surprise if the "gullies" turn to be just dry gravity fall, with closer examination.
I am not sure of this, but...
RNeuhaus
Apr 25 2006, 03:07 PM
The picture is still not very clear or sharp. Hope MRO will shoot it again in sometime but closer view.
The meaning of a gullie is that the slandside is caused by under surface liquid mass which might be of liquid carbon dioxide. Then these features might contain fossil records of primitive organisms that once existed there.
However, the picture is not clear enough to see the slandside mass of sand caused by gullie but I saw it as an gravity erosion caused by falling degradeted stones originated by the decay material consistency with the time.
Rodolfo