Here's why:
* Pressure: Magma, being less dense than surrounding rock, exerts pressure upward.
* Deformation: This pressure causes the overlying rock layers to bend and deform, pushing them upward.
* Dome Shape: The resulting deformation often creates a rounded, dome-like structure.
These domes can vary in size, from small bumps to vast, mountainous features. They are often associated with volcanic activity and can be a sign of potential eruptions.
