|WikiProject Solar System / Mars||(Rated Stub-class, Low-importance)|
I have just expanded on this stub. I'm not sure the discussion I've written on dune types (3rd paragraph) is altogether appropriate here, but included it anyway. Any suggestions on are welcomeSchaffman (talk) 11:54, 9 September 2010 (UTC).
Gypsum in dunes
I am modifying this paragraph. The source of the gysum is unknown and may be hydrothermal in origin. The paragraph as written seems to imply large standing bodies of water were present, which may or may not be true. Schaffman (talk) 13:17, 5 May 2011 (UTC)