Plate Boudaries
Earthquakes
Volcanoes
Continental Drift
The Ocean Floor
100
The type of boudary that produces many earthquakes as the plates slide past each other.
What is a transform boundary?
100
Earthquakes typically occur in these areas of the earth's crust.
What is along plate boundaries?
100
An increase in earthquake activity along the plate boundaries will have this affect on volcanic activity.
What is cause an increase?
100
The theory that the continents are moving apart is refered to as this.
What is continental drift?
100
In the center of the Mid Ocean Ridge there is feature caused by the plates pulling apart called this.
What is a rift valley?
200
The type of boundary thay produces shallow earthquakes as plates move in opposite directions.
What is a divergent boundary?
200
The vast majority of earthquakes and volcanic activity happen along the Pacific Rim otherwise known as this.
What is "The Ring of Fire"?
200
Most volcanic activity occurs along plate boundaries, but some occur in the middle of plates caused by these.
What are hot spots?
200
Continental drift isn't entirely accurate because the drift is actually caused by this.
What is tectonic plate movment?
200
An oceanic-continental plate boundary can cause this to form just off of the coastline.
What is deep sea trench?
300
The type of boundary produced as 2 tectonic plates move toward each other.
What is a convergent boundary?
300
Earthquakes that occur on the ocean floor can have violent effects along the coasts in the form of these.
What are Tsunamis?
300
Hawaii is an island chain formed from volcanic activity, another state with volcanic islands is this one to the north.
What is Alaska?
300
Tectonic plates are moved apart at the Mid-Ocean Ridge as a result of this.
What is ridge push?
300
Along the Mid Ocean Ridge the lava that reaches the surface will cool and form new crust in a process called this.
What is sea floor spreading or ridge push?
400
This type of convergent boundary develops as one plate slides underneath the other as plates push closer together.
What is a subduction boundary?
400
Earthquakes commonly occur along plate boundaries, but specifically the type of boundaries that are most active are called this.
What are transform boundaries?
400
Under a volcano there is typically a large pool of liquid rock called this.
What is a magma chamber?
400
The plate boudary that formed the Himalayas is a result of this type of plate boundary.
What is a continental-continental convergent collision boundary?
400
Most of the activity on the ocean floor is uncharted as a result of these 2 key factors.
What are high water pressure and darkness?
500
When an oceanic plate and a continental plate collide the lead edge of the continental plate may be pulled down as a result of this.
What is slab pull?
500
The most famous transform boundary in the U.S. is this one in California.
What is the San Andreas Fault?
500
Volcanoes erupt because the heating of the core of the earth forces magma toward the surface in a process known as this.
What is magma convection?
500
The continental drift theory was initially stated by this man.
Who is Alfred Wegner?
500
When two oceanic plates collide the deepest of sea trenches can form, and the deepest one in the world is called this.
What is the Mariana's Trench?
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