PLATE TECTONICS Flashcards

(10 cards)

1
Q

Divergent

A

-2 plates move away from each other
-pull apart the ocean floor
- magma fills crack creating a ridge
(North America + Eurasian)

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2
Q

Convergent

A

When 2 plates move towards each other

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3
Q

Subduction

A

-continental and oceanic plate collide
-oceanic is sub ducted and recycled because it’s denser
-magma shoots up through crust
(Juan de fuca + North America)

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4
Q

Continental

A

-2 continental plates move toward each other
-layers of rock are forced up to create mountains
(Appalachian mountains)

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5
Q

Transform

A

-2 plates move in opposite directions parallel to each other
-when plates lock, tension builds
(San Andreas fault zone)

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6
Q

Divergent Effects

A

Volcanos

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7
Q

Subduction Effects

A

Volcanos, Earthquakes, tsunamis

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8
Q

Continental Effects

A

Earthquakes (sometimes)

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9
Q

Transform Effects

A

Earthquakes, tsunamis

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10
Q

Convection Currents

A

Mantle pieces moving in a temperature cycle
warm near core, cool near crust
-cause plates to move

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