[USMA:29282] Mars

[Chimpsarecute]

NASA's Opportunity rover sent back this magnified view of a portion of a Martian rock called "Upper Dells," showing fine layers that are truncated, discordant and at angles to each other. Black and blue lines have been added to the picture, tracing cross-lamination that indicates the sediments forming the rock were laid down in flowing water.   A picture similar to this appeared in the local newspaper this morning.  The scale was a little different then the one shown, but it had a scale with 2 cm next to the scale for all to see.   Euric