Plate Tectonics Diagram- extra practice
Terms in this set (33)
At a __________ plate boundary new crust is created as two or more plates pull away from each other.
__________ can be created or grow wider where plates diverge or pull apart.
The __________-__________ __________ is an example of a divergent boundary.
When a divergent boundary occurs on land a __________, or separation, will arise and over time, that mass of land will break between them.
Great Rift Valley
The __________ __________ __________ is an example of a rift where land between two continents are being pulled apart.
Divergent boundaries can create new __________.
Divergent boundaries cause oceans to grow __________.
When oceanic plates collide, one of those plates will __________ (go beneath the other).
When plates collide the plate that is __________ will subduct (go beneath the other).
Ocean floor feature found above a subduction zone.
A deep depression of the sea floor caused by the subduction of one plate under another.
When two continental plates collide large __________ will usually form.
The __________ mountain range was formed from the collision of the Indian plate colliding into the Eurasian plate.
A collision between an oceanic plate and a continental plate pushes the __________ plate into and under the __________ plate.
When a collision between an oceanic plate and a continental plate pushes the oceanic plate into and under the continental plate __________ takes place.
A __________ boundary occurs when two tectonic plates slide past each other.
At a transform boundary (fault) land is neither __________ or __________, only moved.
San Andreas Fault
The _______________________________ in California is a transform plate boundary.
Transform boundaries (faults) cause __________.
convergent plate boundaries
Areas where plates move toward each other and collide, causing uplift.
divergent plate boundaries
Areas where plates move away from each other, forming mid ocean ridges.
transform plate boundaries
Areas where two plates grind past each other resulting in faults such as the San Andreas Fault. Earthquakes often occur at fault lines.
When oceanic crust melts it can result in the formation of a __________.
A large valley shaped area of the Earth in which plates of the Earth's crust are moving away from each other, forming a system of cracks and faults.
Underwater mountain ranges where the crust is spreading apart creating new ocean floor.
Movements within Earth's mantle that causes tectonic plates to collide, separate, or slide past each other are called __________ __________.
Large convection currents in the ____________________ transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries.
What does this picture show?
Which type of crust is denser, oceanic or continental?
What do you call the process of hot rock rising, cooling, and then sinking?
Magma is called __________ once it spills out onto the Earth's surface.
created at ocean/ocean convergent
where a dense oceanic plate sinks into the asthenosphere
Ocean/continent convergent boundary
when an oceanic plate collides with a continental plate and subducts