[X] My Assistant

[remcook]

what are these?

http://marsrovers.jpl.nasa.gov/gallery/all...00P1981R0M1.JPG

they look like cracks of some sort with no blueberries in them. Though they still have lower elevation. Are they carved out by the wind? They actually look like gullies, but I'm not even going there.

[EckJerome]

*donning his amatuer armchair planetary geologist hat*

Yeah, I'm guessing wind is the main erosive force at work here. Judging by this and other locations, when the bedrock is initially exposed it seems to break apart in irregular blocks or plates a couple of feet across. Not sure why it breaks like that, but once broken, the wind may tend to work faster on the cracks which may in turn create tiny vortices of wind which further erosion along crack lines.

Few of the cracks seems to "flow" with any regularity down the outside slope of the crater, though a few of the cracks which happen to go downhill, may become little "blueberry highways" and take on the appearance of a tiny gully.