Volcano Part-y
a mountain-like structure that forms when magma reaches the Earth's surface.
What is a volcano?
In order to form a volcano, you need this!
What is molten rock under the surface
This type of lava erupts effusively
What is mafic lava
Daily Double!
What is magma called when it is on the earth's crust?
What is lava?
Daily Double!
Molten rock that is under the earth's surface.
What is magma
Daily Double
The part of a volcano where magma erupts onto the earth's surface.
What is the vent?
Most volcanoes form along these points on Earth.
What are plate boundaries?
A volcano is with tall, steep sides and was built by alternating layers of lava and ash and can create explosive eruptions.
What is a composite volcano?
What is silica?
A volcano that is erupting or has erupted recently.
What is active?
Molten rock is stored here deep below the volcano
What is the magma chamber
What boundary is formed when tectonic plates move away from each other?
What is a divergent boundary
A volcano with low and broad sides, and was formed by runny lava.
What is a shield volcano?
This type of lava makes shield volcanoes
What is mafic lava?
A deadly, fast-moving current of hot gas, smoke, and ash that moves away from the volcano at high speeds
What is a pyroclastic flow
Magma travels through this BEFORE it can reach the surface
What is the conduit
Mid-ocean ridge
This forms after a volcano has erupted and the center has collaposed to leave a hole which can fill with water.
What is a caldera?
This lava type can be somewhat explosive and creates conder cone volcanoes
What is intermediate lava
The factors of magma that will determine the type of eruption to happen at a volcano.
What is viscosity (thick or thin), silica, temperature and gas content?
What are three things that volcanoes expel?
What are gasses, ash, lava, rocks, and smoke
Which convergent boundaries form volcanoes? Be specific
Oceanic-oceanic convergent boundary
Oceanic-continental convergent boundary
A kind of volcano is small with steep sides, formed from by somewhat explosive eruptions, and made from layers of tiny, rounded volcanic pebbles.
What is a cinder cone volcano?
The lava most often erupted from stratovolcanoes
What is felsic lava
A volcano forms over a mantle plume in the middle of oceanic or continental crust AWAY from plate boundaries
What is a hot spot volcano?