viscosity		pluton that forms when magma intrudes parallel to layers of rocks.
Plutons		pluton that cuts across preexisting rocks.
batholiths		lava erupts through an opening in the crust
stocks		mushroom-shaped pluton with a round top and flat bottom.
laccolith		intrusive igneous rock bodies.
sill		Irregularly shaped plutons that are similar to batholiths.
dike		the internal resistance to flow.
vent		largest plutons.