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I Exoplanet climate

  1. Oct 31, 2016 #1
    Is it possible for planets to have multiple liquid layers? Like a ocean made of water, with an ocean within, consisting of a heavier liquid. And could it have a sirculation, as water does on Earth?
  2. jcsd
  3. Oct 31, 2016 #2
    Absolutely. It all depends on the pressure and temperature. As the Phase Diagram of Water below indicates:

  4. Oct 31, 2016 #3
    Earth does. It has molten rock layer.
  5. Oct 31, 2016 #4
    Earth even has lakes and rivers of brine deep under miles of ocean.

    The gas giants should have multiple layers. Jupiter certainly does.
  6. Nov 13, 2017 #5
    Look closer at the Phase Diagram of Water, above. Ice XII, Ice X, and Ice Xi can be
    solid - above the normal boiling point of water!

    You could move a planet such as Jupiter, when moved
    down to the orbit of Venus - and it still have all water present as
    Ice ... if the atmospheric pressure is
    high enough.
  7. Nov 13, 2017 #6
  8. Nov 14, 2017 #7

    stefan r

    User Avatar
    Gold Member

    Has been demonstrated by Exxon and BP. Hydrocarbon lakes or oceans will float on water oceans. You could have a water lake the bottom of a hydrocarbon ocean. You can also have CO2 under water if the pressure is high enough. Lake Nyos is an example on Earth.

    Why would multi-layer oceans circulate less than a shallow oceans? Submarine CO2 oceans could have violent eruptions.
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