The intensity and grade of ________ metamorphism is most intense where ________.
A)burial (zeolite facies), the soil horizon gives way to unaltered bedrock
B)cataclastic (dynamic), muds are shattered by raindrop impacts
C)contact, clays are recrystallized and reacted entirely to chlorite
D)regional, continents collide forming a mountain belt

Question

Quizplus · Accepted Answer

Regional metamorphism is the most intense type of metamorphism, occurring when large-scale tectonic processes such as continental collision result in the intense pressure and heat needed to transform rocks. This typically occurs in mountain belts where two continents are colliding. The other choices do not describe the most intense forms of metamorphism.

The Intensity and Grade of ________ Metamorphism Is Most Intense