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plate tectonics

vocabulary

TermDefinition
Pangaea continental drift
continental drift the movement of continents resulting from the motion of tectonic plate
mid-ocean ridge the mountain ranges in the middle of oceans
seafloor spreading is the process by which new oceanic crust forms along mid ocean ridge and older oceanic moves away from ridge
normal polarity a state in which magnetized objects, such as compass needles, will orient themselves to point north
magnetic reversal occurs and the magnetic field reverses direction
reversed polarity a state in which magnetized objects would reverse direction and orient themselves to point south
plate tectonics states the earth surface is made of rigid slabs of rock, or plates that move with respect to eachother
lithosphere the cold rigid outermost rock layer
divergent plate boundary forms where to plates separate
transform plate boundary forms when two plates slide past each other
convergent plate boundary forms when two plates collide
subductions the denser plate stink down below the more buoyant plate in a process
convections the cirrculation matirial caused by diffrences in tempatures and destiny
ridge push rising mantle material at mid oceans ridges creates the potential for plates to move away from the ridge
slab pull as a slab stinks, it pools on the rest og the plate with a force
Created by: benityol
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