It's a weathered boulder

Space/Science » in reply to Is this an outcrop? (circular feature at the mid-rigth of the image) Are we seen layers presented in a circular fashion...or what?

Nick Hoffman — 4/26/2004 5:29:55 AM (archived)

An extremely weathered one.

The surface layers have flaked off as a series of concentric shells - the technical term is "onion Skin" weathering.

This is a real beauty, showing how the shells remain undisturbed in the dust of Mars.

The whole thread (10 posts)

Is this an outcrop? (circular feature at the mid-rigth of the image) Are we seen layers presented in a circular fashion...or what? - Marvi - 4/26/2004 2:52:47 AM
- It's a weathered boulder - Nick Hoffman - 4/26/2004 5:29:55 AM
  - Can you explain the process, Nick? (n/t) - Buck Galaxy - 4/26/2004 7:11:56 AM
    - re: Can you explain the process, Nick? - Nick Hoffman - 4/26/2004 11:26:00 AM
    - google can ;-) - Justin Kelly - 4/26/2004 11:23:02 AM
- re: Is this an outcrop? (circular feature at the mid-rigth of the image) Are we seen layers presented in a circular fashion...or what? - Art Martin - 4/26/2004 3:32:40 AM
  - Is from Spirit Sol 105 (if I recall well), ...new pics. - Marvi - 4/26/2004 3:37:53 AM
    - re: Is from Spirit Sol 105 (if I recall well), ...new pics. - Buck Galaxy - 4/26/2004 4:05:28 AM
      - I just google "circular layering deposits" and saw that the feature is being discussed at another forum... - Marvi - 4/26/2004 4:14:33 AM
        
        Similar feature here on earth...looks similar... - Marvi - 4/26/2004 4:27:49 AM

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