2006-09-21 06:30:13 · 2 answers · asked by abdirashid A 1 in Science & Mathematics ➔ Earth Sciences & Geology
Hi. No. A combination of materials can partially melt. A eutectic material tend to melt at one temperature. The crystallization can occur when melted materials refreeze, combine with other materials and then solidify, etc. More than one process.
2006-09-21 06:39:37 · answer #1 · answered by Cirric 7 · 0⤊ 0⤋
They are similar in the fact that both have crystal-melt liquid/solid mixture. Because rocks are made up of many different minerals, the melt or freeze (crystalize) at many different temperatures, between the liquidus (T at which everything is molten) and solidus (T where everything is solid). Between those two, you can have a variable amount of minerals and liquid.
The only difference between the two things you describe is direction: partial melting happens with rasing temperature, and fractional crystalization happens with lowering temperature. But other than that, it is basically the same process.
So yes, in a way, they are opposites.
2006-09-21 07:32:38 · answer #2 · answered by QFL 24-7 6 · 0⤊ 0⤋