news:43dd5795$1@news.povray.org...
>
> Tek,
> Expect to see a lot of boiling at the undersea vent.
> For form google 'black smoker' - those chimneys are heaps of fun...  and a
> modelling challenge.
> http://images.google.com/images?q=black+smoker&hl=en&btnG=Search+Images
> D
>

I think Tek intents that kind of cushion lava
http://satftp.soest.hawaii.edu/space/hawaii/vfts/pele/page.s2.html

As you can see water pressure and temperature conditions prevents water to
boil further than 1 inch away the  forming crust.
Steam condensates and bubbles shrink as soon as formed.

Marc

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