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plate tectonics

semester exam

TermDefinition
Pangaea all the continents were once part of a supercontinent
Continental Drift suggested that continents are in constant motion on the surface of Earth
Mid-ocean Ridge The mountain ranges in the middle of the oceans
Seafloor Spreading the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge
Plate Tectonics Earth's surface is made of ridge slabs of rocks,or plates, that move with respect to each other.
Lithosphere the cold and rigid outermost layer
Divergent Plane Boundary Forms where two plates separate
Transform Plane Boundary Forms where two plates slide past each other.
Convergent Plane Boundary Forms where two collide
Subduction The denser plate sinks below the more buoyant plate in a process
Convection The circulation of material caused by differences in temperature and density
Created by: user-2007396
 



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