Unit 7 - Plate Tectonics
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Last updated 6:39 PM on 3/12/25
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22 Terms
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convergent boundary
A plate boundary where two plates move toward each other.
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divergent boundary
A plate boundary where two plates move away from each other.
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subduction
One plate going under another plate
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transform boundary
A plate boundary where two plates move past each other in opposite directions
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mountians
converging continental crust and continental crust
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volcanos
converging continental crust and oceanic crust; subduction zone
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ocean trench
converging oceanic crust and oceanic crust; subduction zone
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rift valley
diverging continental crust
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ocean ridge; ocean basin
diverging oceanic crust
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earthquake
movement along transform boundary
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hot spot
An area where magma from deep within the mantle melts through the crust above it
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supervolcano
Massive volcano that can produce unbelievably enormous, but rare, eruptions.
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crust
Earth's outermost layer.
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mantle
the layer of the earth between the crust and the core
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core
Center of the earth
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lithosphere
A rigid layer made up of the uppermost part of the mantle and the crust.
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Pangaea
large, ancient landmass that was composed of all the continents joined together
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Alfred Wegener
scientist who came up with the continental drift theory
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transform boundary
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convergent subduction boundary
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divergent boundary
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convergent boundary
