Volcanoes & Plate Tectonics
Volcanic Eruptions
Volcanic Landforms
CA Geology
MISC
100
This is where most of the Earth's volcanoes are found
What is volcanic belts
100
What are the two types of volcanic eruptions?
What is quiet and explosive
100
This forms when magma hardens in the pipe of a volcano
What is a volcanic neck
100
A huge basin in CA with with the Sierras and Costal Ranges on either side of it
What is the Central Valley
100
A volcano that is no longer erupting but is likely to erupt again in the future is called this
What is dormant
200
This is formed by the many volcanoes that rim the Pacific Oean
What is Ring of Fire
200
The three stages of volcanic activity
What is active, dormant, and extinct
200
When a volcano erupts quietly, this kind of mountain forms
What is a shield volcano
200
The four features of CA geology that plate tectonics explains are faults, volcanoes, basins and this
What are mountain ranges
200
A long tube that connects a magma chamber to the surface is called this
What is a pipe
300
Once magma reaches the surface it is called this
What is lava
300
Magma leaves a volcano through this
What is the vent
300
Landforms that a created by magma include volcanic necks, dikes, sills, and this
What are batholiths
300
The landscape that forms when plate movement forces the crust to bend downward
What is a basin
300
A volcano that is no longer likely to erupt is said to be
What is extinct
400
A weak spot in the crust where molten material, or magma, comes to the surface
What is a volcano
400
An explosive eruption occurs if magma is this
What is high in silica
400
A huge hole left behind when a volcano collapses in a
What is a caldera
400
These began to form several years ago as plate movements pushed up a batholith
What are the Sierra Nevadas
400
A composite volcano typically has this type of eruption
What is quiet and explosive eruptions
500
Hot spots occur where?
What is far from plate boundaries
500
This forms when hot water and steam are trapped underground in a narrow crack
What is a geyser
500
The landforms that lava and ash create: shield volcanoes, cinder cone volcanoes, composite volcanoes and this
What are lava plateaus
500
The features of CA's landscape were caused by plate movements that took place over this many years
What is millions of years
500
What kind of materials are likely to erupt in a composite volcano?
What is ash, cinders, and bombs
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