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Crust Outermost, hard solid rock
Mantle 80% of the earth's volume, denser than crust
Innercore Solid iron
Outercore Liquid molten rock and metal
Lithosphere Crust and uppermost solid mantle
Continental Drift Theory taht the earth's surface is made up of plates that are moving
Earthquakes Shaking and vibration at the earth's surface
Siesmic waves Waves generated by energy released because of displacement of the crust or any movement of the Earth's crust
Focus the exact point where the slippage or breakage takes place
Epicenter Point directly above the focus
P waves (Primary) Longitudial waves, Moves the fastest, back and forth motions
S waves (secondary) Transverse waves, moves slowly, up and down motions
Surface waves Both P and S waves, causes the most damage
Subduction Denser crust dives under less dense crust
Mid-Ocean Ridge Mountain ranges at divergent boundaries
Sea Floor SPreading Plate tectonics
Plate tectonics Moving plates (7)
Convergent Plates comming together
Divergent Plates moving away from each others
Transform Sliding past
Magma Molten rock inside Earth
Seismology Study of earthquakes, their orgin, energy and prediction
Seismograph Machine that measures seismic waves
Seismogram The paper recorded on
Seismograph Station Area where earthquakes are recorded with a seismogram
Ritcher Maginitude Scale Assings a singel number to quantify the amount of seismic engergy released by an earthquake
Volcano An opening in the earth's crust where magma is released
Lava hot liquid magma, when it reaches the surface through a vent
Vent Opening where the gas, magma, is released
Shield Volcano Large, gently sloping mountain
Composite Volcano Made of alternating layers of ash, cinders, and lava
Cinder cone Smallest and most abundant of volcano types
Seamount Underwater volcano/compsite
Ring of Fire A zone around the apcific Ocean where oceanic plates collide with Continetal plates
Hot Spots weak spots in oceanic crust
Created by: 14campionr