Contact Type

metasomatic facies contact

definition A metamorphic contact separating rocks that have undergone metasomatism of a particular facies from those that have undergone metasomatism of another facies. Metasomatism is distinguished from metamorphism by significant changes in bulk chemistry of the affected rock. more like this
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broader metamorphic contact
narrower metasomatic facies contact
in scheme contacttype
is primary topic of metasomatic facies contact