Geography • Physical GeographyMedium
Which category of metamorphic rocks is formed primarily through regional metamorphism involving intense directed pressure and temperature, producing a banded or layered appearance called foliation?
A. Quartzite
B. Marble
C. Schist✓ Correct Answer
D. Hornfels
💡 Solution & Explanation
Schist is a medium-grade foliated metamorphic rock characterized by mineral grains aligned in parallel layers due to intense directed pressure and temperature during regional metamorphism. Non-foliated rocks like quartzite and marble form through contact metamorphism where directed pressure is absent. Geological rock classifications are regular features of physical geography and earth science questions.
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