Question: imagine you started with a sample of shale on the...
Imagine you started with a sample of shale on the sea floor, and progressively buried it due to continental collision. Where would slate, marble, gneiss, schist and phyllite fit in the succession:
- Highest metamorphic grade
- Lowest metamorphic grade
- Low-medium metamorphic grade
- Not a metamorphic rock
- Doesn’t belong in this succession
- Medium-high metamorphic grade