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MID_TERM4

Dynamic Earth

QuestionAnswer
asthenosphere weak plastic layer of the mantle below the lithosphere
lithosphere rigid outer layer of Earth including the crust and upper mantle
Moho boundary separating the crust from the mantle
mantle layer of Earth below the crust
outer core layer below mantle, liquid, generates magnetic field
inner core solid, innermost layer of the Earth
continental crust makes up contients, THICKER than oceanic, GRANITIC rocks, LESS DENSE
oceanic crust makes up most of the crust, THINNER, BASALTIC rocks, MORE DENSE
hot spot a spot of heat in the mantle producing magma which rises to the surface creating volcanoes
p-waves primary waves, push and pull, travel through anything, faster than s-waves
s-waves secondary waves, shear, travel through SOLIDS ONLY
subduction when oceanic crust slides beneath a trench and back into the mantle of colliding plates
epicenter the location Earth's surface directly above the focus of an earthquake
focus point where an earthquake originates
Created by: livieluu
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