Parts of A Volcano Flashcards
Molten rock beneath Earth’s surface.
Magma
Large underground pool of molten rock sitting underneath the earth’s crust
Magma Chamber/ Magma Reservoir
A small cone-shaped volcano formed by an accumulation of volcanic debris.
Parasitic Cone (Secondary cone)
A flat piece of rock formed when magma hardens in a crack in a volcano.
Sill
An opening in Earth’s surface through which volcanic materials escape.
Vent
Molten rock that erupts
Lava
The side of a volcano. From a volcano that solidifies as it cools.
Flank
Streams of lava
Lava Flow
Mouth of a volcano and
surrounds a volcanic vent.
Crater
An underground passage magma travels through.
Conduit
Highest point; apex
Summit
Entrance of a volcano. The part of the conduit that ejects lava and volcanic ash.
Throat
Fragments of lava or rock smaller than 2 mm in size that are blasted into the air by volcanic explosions.
Ash
A cloud of ash formed by volcanic explosions
Ash Cloud
formed when a crater becomes very wide as a result of the collapse of its wall.
caldera