You might find this Mars "depression" (I would call it a crater) interesting (if you haven't already):
http://static.uahirise.org/images/2015/ ... 1_1520.jpg
Personally I doubt that the sandy area in the bottom of the depression is made up of dunes; probably electrically glassified material if anything. Especially look at the "sandy" area to the bottom left with all of the parallel ridges that are at 90 degrees to the ridges in the "dunes" immediately adjacent.
suggested TPOD Mars "depression"
Who is online
Users browsing this forum: No registered users and 2 guests