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Unit 3 vocab Phillip

Plate tectonics

TermDefinition
Asthenosphere the upper layer of the earth's mantle
Subduction movement of the edge of a plate of the earth's crust moving down
Seafloor spreading he formation of new areas of oceanic crust
Mantle convection liquid rising and sinking
Ridge push plate motion in plate tectonics that occurs at mid-ocean ridges
Slab pull tectonic plate being pulled down
Lava molten rock on the surface
Magma molten rock below the surface
Tectonic plate piece of the earth
Theory of continental drift all the continents were once connected
Convergent boundary plates moving toward to each other
Divergent boundary plates moving away from each other
Transform boundary plates slide past each other
Hot spot volcano regions
Epicenter (in regards to earthquakes) where most earthquakes occur
Focus (in regards to earthquakes) seismic waves originate
Pangaea super-continent
Geohazard A dis-tater caused by the earth itself
Reverse fault older rocks pushing
Strike-slip fault Tectonic processes associated with, zones of lateral displacement
Normal fault Hanging wall moving downward
Compression plates squeezing together
Tension being stretched
Shearing Being cut
Felsic igneous rich in elements
Mafic igneous rick with iron
Created by: chessecake
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