Slate is a variety of what type of rock?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. metamorphic.
- Slate originates from shale-type sedimentary rock or volcanic ash, undergoing low-grade regional metamorphism, resulting in a fine-grained, foliated, and homogeneous texture.
- Metamorphic rocks undergo significant changes from their original form, which could have been igneous, sedimentary, or earlier metamorphic.
- It is distinguished as the most finely grained foliated metamorphic rock.