Volcanoes Flashcards
What is the difference between magma and lava
Magma is under the crust
Lava is XXXXXX
What is the ring of fire and where is it
Belt of volcanoes located in the Pacific Ocean
Where do volcanoes form
Converging boundaries
Diverging boundaries
Hot spots
How do volcanoes form along converging plate boundaries
Plates collide and have magma come up and create volcanoes
Example of a volcano that formed along converging plate boundaries
Mariana’s islands
How do volcanoes form along converging plate boundaries
Floor pulls apart causing lava to spill
Example of a volcano that formed along diverging plate boundaries
Mid atlantic ridge
How do volcanoes form along hot spots
Magma melts through the crust
Example of a volcano that formed along a hot spot
XXXXX
Why does magma rise up to the earth’s surface
Less dense than surroundings
What is the difference between a quiet eruption and an explosive eruption?
Quiet eruption XXXXX
EXPLOSIVE ERUPTION XXXXXXX
Define Pahoehoe
Fast moving
Define Aa
Slow moving
What type if eruption produces a pyro clastic flow?
Volcano hurls out ash
What are three stages of a volcano
Active
Dormant
Extinct