A flooded crater in Cerberus Palus, Mars: Evidence for substantial volatile loss

Details A flooded crater in Cerberus Palus, Mars: Evidence for substantial volatile loss A flooded crater in Cerberus Palus, Mars: Evidence for substantial volatile loss

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..865h&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.865

Physics

Scientific paper

We investigate a crater in Cerberus Palus, Mars, that has been largely filled by material with the platyridged- polygonized (PRP) surface morphology characteristic of the wider area. Subsidence of solidified material within the crater demonstrates volume loss, either of the PRP material or some older material beneath. Possible formation hypotheses include: 1) simple volatile loss (if the PRP material was ice-rich), 2) degassing of lava (if the PRP textures represent lava flows) or 3) the melting of ice-rich material at the crater bottom when lava buried it, leading to magma-ice interaction and the eventual subsidence of the solidified lava crust. An interpretation involving loss of ice or lava-ice interaction seems most likely.

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