During Metamorphism, What Is the Major Effect of Chemically Active

question 111

Multiple Choice

During metamorphism, what is the major effect of chemically active fluids?

• A)increase the pressures in deeply buried, regional-metamorphic zones
• B)aid in the movement of dissolved ions and silicate constituents from parent minerals and facilitate growth of new metamorphic mineral grains
• C)prevent partial melting so solid rocks can undergo very high temperature regional metamorphism
• D)facilitate the formation of schistosity and gneissic banding in hornfels and skarns

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