Volcanoes and Plate Tectonics
Volcanic Eruptions
Volcanic Landforms
100
A weak spot in the crust where molten material, or magma, comes to the surface.
What is a volcano?
100
quiet or explosive
What types of volcanic eruptions are there?
100
wide gently sloping mountain
What is a shield volcano?
200
a molten mixture of rock-forming substances, gasses, and water from the mantle
What is magma?
200
magma chamber
Where does magma collect?
200
steep, cone shaped hill or small mountain
What is a cinder cone?
300
magma after it reaches the Earth's surface
What is lava?
300
active, dormant, or extinct
What are the stages of volcanic activity?
300
a huge hole left by the collapse of a volcanic mountain
What is a caldera?
400
many volcanoes that rim the Pacific Ocean
What is The Ring of Fire?
400
molten rock and gas leave a volcano through this
What is a vent?
400
tall, cone-shaped mountains in which layers of lava alternate with layers of ash
What is a composite volcano?
500
an area where material from deep within the mantle rises and then melts, forming magma
What is a hot spot?
500
A FOUNTAIN OF WATER AND STEAM THAT ERUPTS FROM THE GROUND
What is A GEYSER?
500
faults, volcanoes, mountain ranges, and basins
What four features of California geology does plate tectonics explains?
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