When sedimentary rocks are subjected to intense heat and pressure, they transform into metamorphic rocks.

Here's a breakdown:

* Sedimentary rocks are formed from the accumulation and cementation of sediments like sand, mud, or organic matter.

* Metamorphism is the process of changing the texture and mineral composition of rocks under high temperatures and pressures. This occurs deep within the Earth's crust or where tectonic plates collide.

Examples of metamorphic rocks include:

* Marble: Formed from limestone.

* Slate: Formed from shale.

* Quartzite: Formed from sandstone.

* Gneiss: Formed from a variety of sedimentary rocks.

The specific type of metamorphic rock formed depends on the original sedimentary rock and the intensity of heat and pressure it experiences.