But...

Space/Science » in reply to It's an interesting theory.

But...

ER — 2/8/2019 10:26:48 PM (archived)

Isn't the implication that radiation DECREASED due to the enhanced paleomagnetism, meaning a LOWER rate of mutations?

Although radiation can increase the mutation rate, its effects can also be negative for life, and multicellular life is less resistant to radiation than single-cells.

I'd forgotten about "snowball earth". When did that occur, and how long did it last? Did it also affect the tropical oceans?

The whole thread (12 posts)

Oy, Pod! - ER - 2/8/2019 8:52:27 PM
- listening now.... - podrock - 2/8/2019 9:47:42 PM
  - It's an interesting theory. - podrock - 2/8/2019 10:13:26 PM
    - But... - ER - 2/8/2019 10:26:48 PM
      - Recent study: - podrock - 2/9/2019 1:45:33 AM
        
        If true, that demolishes one of my pet theories... - ER - 2/9/2019 5:01:38 AM
        
        Good questions. - podrock - 2/9/2019 12:34:23 PM
        
        What makes Greenstone Belts mysterious? - RL - 2/9/2019 5:54:24 PM
        
        How they fit into Plate Tectonics - podrock - 2/10/2019 9:26:57 PM
        
        It appears - ER - 2/11/2019 4:13:28 AM
        
        I have heard that ~1/2 billion years of strata 'went missing' - RL - 2/9/2019 5:33:39 PM
        
        Other theories of the Great Unconformity - RL - 2/9/2019 5:51:38 PM

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