Batholith		is a sheet intrusion that has been injected between two layers of sedimentary rock
Caldera		Large Crater, up to 50km in diameter
Cinder-Cone Volcano		Steep-sided, generally small volcanoes
Sill		Irregularly shaped,igneous rock masses That covers at least 100km^2
Tephra		Pluton that forms when magma intrudes parallel rock layers
Crater		a type of sheet intrusion referring to any geologic body that cuts discordantly across
Dike		is fragmental material produced by a volcanic eruption regardless of composition, fragment size or emplacement mechanism
Laccolith		is a type of volcano usually built almost entirely of fluid lava flows
Shield Volcano		caused by two celestial bodies impacting each other, such as a meteorite hitting a planet