re: Spherules are not concretions, as previously hypothesized

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Nick Hoffman — 10/12/2004 4:39:29 AM (archived)

Concretions generally enclose, rather than replace, the mineral grains around them, but there are some exceptions.

Nonetheless, I agree with you and Phil Christensen.

We're seeing something that grows by replacement during late diagenesis or early metamorphism.

The whole thread (22 posts)

Spherules are not concretions, as previously hypothesized - Philip Simon - 10/11/2004 11:42:31 PM
- They seem localized to the Meridiani region. - REB - 10/13/2004 12:32:09 PM
  - re: They seem localized to the Meridiani region. - Nick Hoffman - 10/14/2004 8:05:11 AM
    - re: They seem localized to the Meridiani region. - REB - 10/14/2004 12:34:05 PM
    - re: They seem localized to the Meridiani region. - REB - 10/14/2004 11:48:28 AM
      - uhhh - here ya go - E.P. Grondine - 10/15/2004 1:10:06 AM
      - Good. - Nick Hoffman - 10/14/2004 2:05:37 PM
        
        re: Good. - REB - 10/14/2004 2:10:35 PM
- re: Spherules are not concretions, as previously hypothesized - REB - 10/12/2004 2:36:49 PM
- re: Spherules are not concretions, as previously hypothesized - Nick Hoffman - 10/12/2004 4:39:29 AM
  - re: Spherules are not concretions, as previously hypothesized - bruced - 10/13/2004 11:30:10 PM
    - increased local crystallinity - Philip Simon - 10/14/2004 11:40:24 PM
      - re: increased local crystallinity - bruced - 10/15/2004 8:25:12 AM
        
        Surface films - Nick Hoffman - 10/15/2004 11:57:50 PM
  - re: Spherules are not concretions, as previously hypothesized - E.P. Grondine - 10/12/2004 2:03:28 PM
- link please, sounds interesting. (n/t) - jms - 10/12/2004 1:56:45 AM
  - re: link please, sounds interesting. - Marcia - 10/12/2004 4:51:50 AM
    - Thanks Marcia, I'll take notes. - jms - 10/12/2004 4:59:50 AM
- Yeah, they're tectites - E.P. Grondine - 10/12/2004 12:55:38 AM
  - re: Yeah, you're a geologist (n/t) - Mark Eby - 10/12/2004 1:43:58 AM
    - No, I just get tired of the Mars Nuts' BS (n/t) - E.P. Grondine - 10/12/2004 2:04:24 AM
      - re: If you explained how they could be tektites it would be more interesting. You Moon Nut. (n/t) - Chris Vancil - 10/12/2004 9:07:21 AM

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