Boy'o'boy.
The scientific community is using new words to describe moons
around Saturn. They
are saying of Dione, a biggish moon, "We can see indications
of tectonic movement.". Wow, Tectonic movement on a moon.
But you will notice no mention of subduction zones.
You
do know that you can't have tectonic "spreading"
which is what "tectonic movement" means,
without the body growing... Unless you have subduction.
You
didn't hear the word subduction in that quote. Wasn't there.
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