science plate tectonics

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9 Terms

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Convergent

Contiental- oceanic

Ocean plate sub ducts under the land plate

Trench formed

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Convergent- ocean to ocean

More dense oceanic plate sub ducts under the other one

A volcanic island arch is formed

3
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Convergent

Contiental to contiental

No subduction, plates gets pushed up

Folded/non-explosive mountains

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Divergent

Magma pops up in the crack that is formed

Mid-ocean ridge and rift valleys

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Transform boundary

The plates slide by each other

Fault zone formed

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Hot spot

Magma reaches the surface NOT at a plate boundary

Volcanos and volcanic island chain formed

7
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Convection currents

Hot liquids rise, cool liquids sink in the mantle

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Slab pull

DOING MOST OF THE WORK

Subduction causes a pulling force on the plate

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Ridge push

Creation of new crust pushing exciting rock out of the way