Convergent
Divergent
Transform
Convergent Subduction
Convection Currents
100
2 plates come together.
What happends in Convergent Boundaries?
100
2 plates are moving apart.
What happends in Divergent Boundaries?
100
Crust is neither created nor destroyed.
What happends to the crust in Transform Boundaries?
100
More dense plate drives under the other plate and returns to the mantle-results in subduction.
What goes on during a Convergent Subduction Boundarie?
100
Caused by differences of temperature and density with in a fluid.
What are Convection Currents caused by?
200
Compression
What type of stress do Convergent Boundaries have?
200
Mid-Ocean Ridges
What is and example of Divergent Boundaries?
200
Shearing
What type of stress does Transform Boundaries have?
200
At Trenches
Where do Convergent SUbduction Boundaries meet?
200
The more spread out the particles are; density decreases; the colder, the closer the particles are, therefore more dense.
What happends when the substance is hot?
300
Density
What determines which type of crust comes out on top and which is subducted?
300
On land as well as rift valley(less common).
Where can Mid-Ocean Ridges occur?
300
San Andreas Fault, CA
What is an example of Transform Boundaries?
300
Island Arcs
What do Convergent Subduction Boundaries produce?
300
From the core and from the mantle itself.
Where does the source of heat come from?
400
Subduction
What does not take place in Convergent Boundaries?
400
Tension
What type of stress is Divergent Boundaries?
400
2 plates slip past each other, moving in opposite directions, produces faults- break in earth's crust where rocks have slipped past each other
What goes on in Transform Boundaries?
400
Western Pacific Ocean, Japan; Aleutian Islands, Alaska.
What is an example of Convergent Subduction Boundaries?
400
It rises slowly through the asthenosphere.
What happendes to hot mantle material?
500
The 2 plates override each other thickening the lithosphere and producing mountains.
What goes on in Conergent Boundaries?
500
Great Rift Valley of Africa.
What is another example of Divergent Boundaries?
500
Ocean- Ocean and Ocean- Continent
What 2 collisons are there in Convergent Subduction Boundaries?
500
Hot mantle material spreads out and pushes the cooler material out of the way.
What happendds at the top of the asthenosphere?
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