Exoplanet Climate: Can Planets Have Multiple Liquid Layers?

[Brage Eidsvik]

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?

 

[|Glitch|]

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?

Absolutely. It all depends on the pressure and temperature. As the Phase Diagram of Water below indicates:

 

[nikkkom]

Is it possible for planets to have multiple liquid layers?

Earth does. It has molten rock layer.

 

[newjerseyrunner]

Earth even has lakes and rivers of brine deep under miles of ocean.

The gas giants should have multiple layers. Jupiter certainly does.

 

[Bruce Zerr]

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.

 

[rootone]

Titan?
https://en.wikipedia.org/wiki/Lakes_of_Titan

 

[stefan r]

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?

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.