I have seen some strange concretions

Space/Science » in reply to Can you think of any Earth anologs?

podrock — 2/27/2022 8:48:15 PM (archived)

The hill behind me is full of them. They often, but not always, form with an organic seed.

The gas release in mud or wet sand is a worthy hypothesis. Liquefaction after an impact?

The whole thread (15 posts)

Coral-like formation on Mars - RobVG - 2/27/2022 5:52:49 PM
- Apparently, the 'flower" is about a centimeter in size. - podrock - 3/1/2022 12:36:17 AM
  - Will know not to count on sand grains for scale next time. - RobVG - 3/1/2022 5:31:39 AM
- Mineral precipitation - RobVG - 2/28/2022 7:23:46 AM
- Here it is - RobVG - 2/27/2022 5:57:04 PM
  - Concretions, a link - podrock - 2/27/2022 7:50:56 PM
    - Seems the likely candidate. Thanks - RobVG - 2/28/2022 2:02:40 AM
  - Image embed - podrock - 2/27/2022 7:44:40 PM
  - Curious - podrock - 2/27/2022 6:24:07 PM
    - Reminds me of a casting. - RobVG - 2/27/2022 6:43:25 PM
      - yes - podrock - 2/27/2022 7:30:33 PM
        
        Can you think of any Earth anologs? - RobVG - 2/27/2022 8:10:02 PM
        
        I have seen some strange concretions - podrock - 2/27/2022 8:48:15 PM
        
        Oklahoma's state rock - RL - 2/28/2022 3:52:52 PM
        
        the barite rose is an excellent example - podrock - 2/28/2022 8:07:02 PM

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