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unit3 vocab nathalia

plate tectonics

TermDefinition
asthenosphere this part of the earths layers is located above the mantle
subduction when one plate slides under another
seafloor spreading when new ocean crust is formed by a boundary
mantle convection slow movement of the mantle caused by convection
ridge push when plates slide
slab pull a process involving convection currents
lava magma that comes out of a volcano
magma molten rock heated and compressed together
tectonic plates massive pieces of rock
theory of continental drift all the continents were once joined
convergent boundaries when two plates run into each other
divergent boundaries when two plates move apart
transform boundaries when two plates slide against each other
hot spot where the mantle has high temperatures
epicenter where a seismic rupture starts
focus where the part of the earth starts to break
pangaea all the continents connected
geohazard conditions around the earth that could spread
reverse fault when a side of the fault moves up
stike-slip fault displacement of the earths crust
normal fault when the wall moves down
compression when something is being compacted together
tension the way a force reacts
shearing pressure or force
felsic association with igneous rocks, rich in elements
mafic mineral in association with igneous rocks
Created by: 12221774
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