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griffin long
plate tectonics
8
Science
7th Grade
02/20/2014
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Term
plate tectonic theory
 Definition
crustal section (plates) move around mantle
Term
Convergent
 Definition
plates come together
Term
continental collision
 Definition
two continental (less dense) plates collide
Term
subduction
 Definition
denser oceanic plate goes under less dense continental plates
Term
divergent
 Definition
plates spread apart
Term
seafloor spreading
 Definition
two oceanic plates move apart
Term
rift valley
 Definition
two continental plates move apart
Term
transform
 Definition
plates slide by each other
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