Mars
Category archives for Mars
New Geo Paper from Mars Rover “Opportunity” Out Today
Posted by Greg Laden on May 22, 2009
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The Mars rover Opportunity has explored Victoria crater, a ~750-meter eroded impact crater formed in sulfate-rich sedimentary rocks. Impact-related stratigraphy is preserved in the crater walls, and meteoritic debris is present near the crater rim. The size of hematite-rich concretions decreases up-section, documenting variation in the intensity of groundwater processes. Layering in the crater walls…
, which is now available for the 
