Here's a breakdown:
* Metamorphism: The process of transforming existing rocks (igneous, sedimentary, or even other metamorphic rocks) into new rocks due to intense heat and pressure. This occurs deep within the Earth's crust or where tectonic plates collide.
Examples of metamorphic rocks include:
* Marble: Formed from the metamorphism of limestone.
* Slate: Formed from the metamorphism of shale.
* Gneiss: Formed from the metamorphism of granite or other igneous rocks.
* Schist: Formed from the metamorphism of shale or other sedimentary rocks.
* Quartzite: Formed from the metamorphism of sandstone.
Key Points:
* The degree of metamorphism (heat and pressure) determines the type of metamorphic rock formed.
* The original rock (the "parent rock") also plays a role in the final metamorphic rock type.
* Metamorphic rocks often exhibit foliation (banding) due to the alignment of minerals during the transformation process.
Let me know if you'd like to learn more about a specific type of metamorphic rock!
