Parts of a Volcano
Volcanic Landforms
Vocabulary
100
What is lava?
Lava is magma that flows out onto Earth's surface.
100
what three kinds of landforms are created by the eruptions of volcanoes? Name all.
There are 3 types of volcanic landforms: Cindercone, Shield, and Composite
100
What is Magma?
Molten rock beneath the earth's surface.
200
What are magma chambers?
Magma chambers are reservoirs from which volcanic materials erupt.
200
What is a cinder cone volcan?
This type of volcanic landform is made up of small rock particles, or cinders. It is characterized by a small cone with steep sides.
200
What is a mountain belt?
Several mountain ranges that lie parallel to one another
300
what is a vent? where is it located?
Openings through which volcanic materials erupt are called vents. They are located near the peak of the mountain.
300
What is a shield volcano?
This type of volcano is made up of layers of lava rocks. it's not as steep as cinder cone volcano and is created slowly that's why it has gentle and broad sides.
300
What is a hot spot?
A region of volcanic activity in the middle of a tectonic plate.
400
What are craters?
Craters are bowl-shaped depressions. Forceful explosions may blow out the tops of mountains to form craters.
400
What is a composite volcano?
This type of volcanic landform is made up of layers of lava flows alternating with layers of ash, cinders, and rocks. it is a combination of cinder cone and shield volcanoes.
400
What is a volcanic island arc?
A long curved chain of volcanic islands.
500
Define Subduction Zone. Where is it located?
subduction occurs when two plates collide. the denser; heavier, palte slides under the other plate and becomes part of the mantle.
500
Which type of volcanic landform is the most destructive? Name a volcanic landform that was developed this way.
Composite volcano. Mt. St. Helens is a composite volcano.
500
what is Ring of Fire and where is it located?
A zone of frequent earthquakes and volcanic eruptions that encircles the Pacific Basin.
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