Here's how it works:
* Original Rocks: Metamorphic rocks start as either igneous or sedimentary rocks.
* Heat and Pressure: These rocks are then subjected to intense heat and pressure deep within the Earth's crust. This can happen due to tectonic plate movement, volcanic activity, or burial under other rocks.
* Transformation: The heat and pressure cause the minerals in the original rocks to recrystallize and rearrange, forming new minerals and textures. This process is called metamorphism.
Examples of metamorphic rocks:
* Marble: Formed from limestone.
* Slate: Formed from shale.
* Gneiss: Formed from granite or other igneous rocks.
* Quartzite: Formed from sandstone.
Let me know if you'd like to learn more about metamorphic rocks!