Partial Melting and Migmatites

Field and thin-section petrology of the partial melting process in high-grade crustal metamorphism, in both fluid-present and fluid-poor environments.
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Trois Seigneurs, Pyrenees

Water-saturated partial melting in metapelites, and granite formed largely in-situ as critical melt fraction was exceeded.

31 images

Dehydration melting, Namaqualand

Field, hand specimen and thin-section views of dehydration-melting phenomena in granulite-facies metapelites, metabasites and quartzofeldspathic gneisses

40 images

High-pressure Metamorphism
Granulite-facies Metamorphism