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Plates Test

Lithosphere Crust and Upper Mantle
Divergent boundary Move away from each other
Alfred Wegner Meteorologist who proposed Continental Drift Theory
Cinder cone volcano Steep volcano, explosive, small
Shield volcano Gently sloping sides
Transform boundary Horizontal motion-Most in oceans
Harry Hess Proposed sea floor spreading theory
Convection currents A current of heated magma that makes plates float
Volcanic island arc Series of Volcanos
Sea floor spreading Ocean crust that causes rising magma
Plutons Intrusive igneous rocks associated with volcanoes
Tephra Any solid material out of a volcano
Ductile deformation Permanently deformed
P waves Push and pull
S waves Side to side
Reverse fault Pushed upward by compression
Seismograph Instrument that measures and records details of earthquakes
Seismogram A record produced by a seismograph
Strike slip Shear fault in horizontal direction
Normal Fault Tension fault
Focus Where rocks break place
Epicenter Point on surface directly above focus
Richter Scale A numerical scale for expressing the magnitude of an earthquake
Moment Magnitude Measures the size of earthquakes in terms of energy released
Mountain A large natural elevation of the earth's surface rising (a large hill)
Pillow Basalt Pillow like formation of lava rocks
Orogeny Earth crust us folded and deformed by compression to form a mountain range
Created by: KJohnson23