Don't think that's right Robin... Water erosion of rocks produces rounded edges; wind erosion more angular edges.
-----Original Message----- From: mix...@bigpond.com [mailto:mix...@bigpond.com] Sent: Thursday, September 27, 2012 8:50 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Ancient Stream found on Mars In reply to Ron Kita's message of Thu, 27 Sep 2012 18:09:34 -0400: Hi, [snip] >Greetings Vortex-L, > >An ancient stream found on Mars: >http://news.yahoo.com/mars-rover-curiosity-finds-signs-ancient-stream-1 >90805936.html Dust blown in the wind will also round off sharp edges, especially if has billions of years in which to do it. Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
