Question

6. Metamorphic rocks which are formed from shale and limestone.​

Answer 1

Answer:

Different grades of metamorphism are demonstrated when a shale is subjected to increasingly greater pressure and heat - first it becomes slate, then phyllite, then schist, and finally, gneiss.

Answer 2

Slate is another common metamorphic rock that forms from shale. Limestone, a sedimentary rock, will change into the metamorphic rock marble if the right conditions are met. Although metamorphic rocks typically form deep in the planet's crust, they are often exposed on the surface of the Earth.