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Transcript
Plate Tectonics Vocabulary Continental Drift Convergent Boundary Deep-ocean trenches Divergent Boundary Faults Fossil Mid-Ocean Ridge Pangaea Plate Plate Tectonics Rift Valley Sea-Floor Spreading Sonar Subduction Transform Boundary The hypothesis that the continents slowly move across Earth’s Surface A plate boundary where two plants move toward each other A deep valley along the ocean floor which oceanic crust slowly sinks toward the mantle A plate boundary where two plates move away from each other A break or crack in Earth’s lithosphere along which the rocks move The preserved remains or traces of living things The undersea mountain chain where new ocean floor is produced The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the mantle A deep valley that forms where two plates move apart The process by which molten material adds new oceanic crust to the ocean floor A system that determines the distance of an object under water by recording echoes of sound waves The process by which crust sinks back into the mantle A plate boundary where two plates move past each other in opposite directions Plate Tectonics Vocabulary Continental Drift Convergent Boundary Deep-ocean trenches Divergent Boundary Faults Fossil Mid-Ocean Ridge Pangaea Plate Plate Tectonics Rift Valley Sea-Floor Spreading Sonar Subduction The hypothesis that the continents slowly move across Earth’s Surface A plate boundary where two plants move toward each other A deep valley along the ocean floor which oceanic crust slowly sinks toward the mantle A plate boundary where two plates move away from each other A break or crack in Earth’s lithosphere along which the rocks move The preserved remains or traces of living things The undersea mountain chain where new ocean floor is produced The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the mantle A deep valley that forms where two plates move apart The process by which molten material adds new oceanic crust to the ocean floor A system that determines the distance of an object under water by recording echoes of sound waves The process by which crust sinks back into the mantle Transform Boundary A plate boundary where two plates move past each other in opposite directions