From it's light color it's possible it is limestone. (Another reason why accurate color is important.)

Space/Science » in reply to Bedrock and Opportunity

Robert Clark — 1/27/2004 2:04:33 PM (archived)

Some types of limestone form from accumulated fossilized sea life.
There are known to be wide-spread hard white surfaces on Mars from observations at the Viking and Pathfinder sites. It is likely this material is either carbonate or indurated sulfate, such as gypsum.
See the images here:

Space Sciences
re: Huge Moomaw article on the current views of mars
Posted by Robert Clark on 12/18/2003 5:00:27 PM
In Reply to: Huge Moomaw article on the current views of mars posted
by alcaray on 12/18/2003 9:49:09 AM
http://habitablezone.com/space/messages/305743.html

Bob Clark

The whole thread (14 posts)

Bedrock and Opportunity - Curious - 1/27/2004 2:26:51 AM
- From it's light color it's possible it is limestone. (Another reason why accurate color is important.) - Robert Clark - 1/27/2004 2:04:33 PM
  - re: From it's light color it's possible it is limestone. (Another reason why accurate color is important.) - BRFelix - 1/27/2004 7:10:38 PM
  - Colour doesn't matter - Tony - 1/27/2004 4:26:10 PM
    - Opportunity Closing in on Scientific Jackpotpot - Robert Clark - 1/27/2004 8:09:46 PM
      - Once more unto the breach - Tony - 1/27/2004 8:20:03 PM
        
        Karstic also means liquid water. - Robert Clark - 1/27/2004 10:30:57 PM
        
        could Sodium bi-carbonate form solid flat surfaces like we are seeing? - Scott Evil - 1/27/2004 9:15:03 PM
        
        Sodium Carbonate can exist as lavas - Tony - 1/27/2004 9:40:44 PM
        
        It could have been precipitated out of a briney water solution - Scott Evil - 1/27/2004 11:43:56 PM
- re: Bedrock and Opportunity - Tom Brosz - 1/27/2004 2:34:42 AM
  - Ever wonder about micro fossils? (n/t) - RobVG - 1/27/2004 3:32:17 AM
    - Gee, sure wish we had a MICROSCOPE on those rovers! ;) (n/t) - Tom Brosz - 1/27/2004 3:54:43 AM
      - Check those "raw images" from Sol 17 again please. - Jacob Samorodin - 1/27/2004 3:09:56 PM

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