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Old 06-22-2018, 11:51 AM   #2121 (permalink)
aerohead
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volcanism

Quote:
Originally Posted by oil pan 4 View Post
And supposedly solar minimums and interplanetary cosmic rays don't play any role in volcanism.
Sit back, a 4th eruption maybe about to happen.
The solar/cosmic ray hypotheses are fascinating,and I'll continue to explore those as time permits.Thanks!
Something which did pass by had to do with water.
*There are hydrated serpentine antigorite rock,which in subduction zones,disintegrate into forsterite and enstatite under terrific friction-pressure-induced heating,at depths up to 200-kilometers,which liberate 13% H2O by weight,which in turn,ascends into the hotter,overlying mantle where it can cause partial melting in source regions of calc-alkaline magma.
*The calc-alkaline magma gives rise to subduction-related volcanism.

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