noun
- large masses of igneous rock formed by the cooling and solidification of magma deep underground
Usage: geology
Examples
- The geologists studied several granite plutons in the mountain range.
- These plutons were formed millions of years ago when magma cooled slowly beneath the surface.
- The Sierra Nevada batholith consists of numerous plutons of different ages.
- Plutons can be exposed at the surface through erosion and uplift.
- The composition of plutons varies depending on the original magma type.
- Large plutons often contain valuable mineral deposits.