Igneous+Intrustion

Igneous Intrusions
There are seven types of igneous intrusions: Pluton- an igneous rock that hardens underground Sill- an igneous intrusion that forms between rock layers Dike- an ingeous intrusion that custs across rock layers Laccolith- a mushroom shape igneous intrusion Batholith- largest of all plutons,unknow size, makes up the core of mountains Stock- small batholith less than 100 square kilometers Neck- the remnats of the hardened lava in the throat of avolcano after erosion