[meteorite-list] OCEANS ON MARS
From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Wed, 13 Jun 2007 15:45:14 -0500 Message-ID: <003a01c7adfb$bf779430$c3e08c46_at_ATARIENGINE> When Viking got to Mars, it found what looked like clear evidence of the shoreline of a vast ancient sea. Exciting. Later, closer looks show that the "shoreline" was not level; it "waved" up and down. Shorelines don't do that -- goodbye to the Seas of Barsoom. Geophysicists at UC Berkeley have created a simple model that explains the "wavy" wrinkled shoreline, and now it looks like the Ancient Seas of Mars are possible, even likely. This Ocean would have covered a goodly fraction of the planet and been 4000 to 6000 feet deep! Needless to say this is way too much water to have been lost to space by leaking out of the atmosphere, so the question is, "Excuse me, but where are you hiding the ocean?" Mars Probably Once Had A Huge Ocean: http://www.sciencedaily.com/releases/2007/06/070613131912.htm The full paper will appear in the journal Nature tomorrow, if anyone who wants it has access. Meanwhile, we can put a sedimentary Martian Meteorite on the list of things we want the universe to give us for Christmas. Sterling K. Webb Received on Wed 13 Jun 2007 04:45:14 PM PDT |
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