Huh? Compression results in heating (less space for a given mass of molecules, so they get edgy; just like a line at
I know nothing about “decompression partial melting’ but would surmise from that phrase that it is rapid cooling material caused by a decompression. As the cooling into a solid occurred, it would encase whatever was expanding and would partially re-melt and re-solidify until some form of balance was achieved.
BLEVE [Boiling Liquid Expanding Vapor Explosion] (usually with a petroleum product) is bad because the boiling liquid so rapidly converts to vapor that it exceeds the containment ability (breaks the tank), mixes with oxygen and then ignites, reacting violently increasing the heat and the rapid conversion of the remaining liquid. That speed is commonly referred to as an explosion.
The explosive in a rapid solid to vapor conversion does NOT have to be a petrochemical (propane, methane etc.) but can be ice, dropped into a very hot environment (yes, it goes BANG which can be sorta fun to play with).
Rick
From: Kim Noyes
Heat is a biproduct of decompression..... that in part explains why BLEVE explosions are so bad....
On Wed, Nov 16, 2011 at 7:26 PM, Martina <martina_tucker@yahoo.com> wrote:
Ok tell me if I'm correct. Mafic magma forms at divergent boundaries deep in the asthenosphere from decompression partial melting. Can you guys help me better understand decompression partial melting?
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