n.
Large body of igneous rock formed beneath the Earth's surface by the intrusion and solidification of magma .
Batholiths are usually composed of coarse-grained rocks (e.g., granite or quartz diorite) and often have an irregular shape, with side walls that incline steeply. They may have a surface exposure of 40 sq mi (100 sq km) or more and may be 69 mi (1015 km) thick. A well-known batholith is located in the Sierra Nevada range of California.