re: Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean – Space/Science

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re: Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean

REB — 7/16/2009 1:24:45 PM (archived)

Back in the late 80â€™s or early 90â€™s, Astronomy Magazine had and article about this. The author of the article speculated that Venus once had oceans and continents driven by plate tectonics. It looked very similar to Earth. But then the oceans dried up and this caused the plate tectonics to cease.

He thought oceans were needed for plate tectonics to work.

I have thought that it was a combination of Oceans (to help lubricate) and a large moon (too help flex the crust) that helped plate tectonics.

The whole thread (21 posts)

Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean - Marsby - 7/15/2009 1:53:08 AM
- I wouldn't rule out a native, undersea ETI civilization - pwokenyaw - 7/17/2009 5:14:57 AM
  - Whales have been around for about 30 million years - Socrates II - 7/17/2009 1:38:07 PM
    - re: Whales have been around for about 30 million years - Marsby - 7/17/2009 4:08:53 PM
      - large-brained whales have been around for a lot less than 30m years - pwokenyaw - 7/17/2009 6:11:02 PM
        
        Don't Think So - Marsby - 7/17/2009 6:34:36 PM
        
        well, kind of - pwokenyaw - 7/18/2009 5:16:32 AM
        
        Thanks For The Memory Jog - Marsby - 7/18/2009 6:56:52 PM
        
        Not sure if that's the right comparison - pwokenyaw - 7/19/2009 5:30:11 AM
        
        It may not be so much the ability as the desire - Socrates II - 7/17/2009 6:47:05 PM
        
        Great Point - Marsby - 7/17/2009 8:36:04 PM
- re: Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean - REB - 7/16/2009 1:24:45 PM
  - re: Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean - Marsby - 7/16/2009 1:44:27 PM
    - re: Great News For ETI - Venus Probably Had Plate Tectonics and an Ocean - REB - 7/16/2009 3:06:05 PM
    - The theory of Venus totally resurfacing itself via massive volcanic eruptions 500 mya... - Socrates II - 7/16/2009 1:59:20 PM
      - re: Due to the lack of continental plates and tectonics - Nick Hoffman - 7/17/2009 6:24:15 AM
      - re: The theory of Venus totally resurfacing itself via massive volcanic eruptions 500 mya... - Marsby - 7/16/2009 3:02:17 PM
        
        And Venus may not be quite dead yet - Socrates II - 7/16/2009 3:34:06 PM
        
        No sulfuric acid near the surface. - Adam - 7/16/2009 11:19:24 PM
        
        re: And Venus may not be quite dead yet - REB - 7/16/2009 3:48:56 PM
- For those who think a few flybys or even one landing of an immobile probe are enough to understand an entire world - Socrates II - 7/15/2009 2:24:02 PM

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