A new class of Mars gullies.

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In this sci.astro post I noted unusual parallel trending ridges in an MGS image of the Tharsis region:<br /><br />Newsgroups: sci.astro, sci.geo.geology <br />From: rgcl...@my-deja.com ("Robert Clark") <br />Date: Mon, 26 Mar 2001 11:15:32 +0000 (UTC) <br />Local: Mon, Mar 26 2001 6:15 am <br />Subject: Strange features in Martian craters in Tharsis. <br />http://groups.google.com/group/sci.astro/msg/5d1bd9437ae5ff52<br /><br />The ridges appear on the rims of craters, inside craters and within the channel in the image as well:<br /><br />http://ida.wr.usgs.gov/fullres/divided/m03017/m0301739d.jpg <br /><br />http://ida.wr.usgs.gov/fullres/divided/m03017/m0301739a.jpg <br /><br />The ridges have the appearance of de Geer or Rogen moraines on Earth:<br /><br />Structure of the De Geer moraine and large transversal moraine ridge at Björköby and Köklot. <br />http://www.ymparisto.fi/download.asp?contentid=34282&lan=sv<br /><br />Geonat-project 2003 -2006. <br />http://en.gtk.fi/export/sites/default/Research/meetings/nordic/image_wintermeeting/breilin_etal_geonat_nettiin.pdf<br /><br />Moraines. <br />http://gsc.nrcan.gc.ca/landscapes/pdf/moraines_e.pdf <br /><br />Rogen moraine: an example of glacial reshaping of pre-existing landforms. <br />http://www.geol.lu.se/personal/prm/PD <div class="Discussion_UserSignature"> </div>
 
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