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Mr. Lenz's Review

Mr. Lenz's Vocabulay Review Ch. 4F (all) - Plate Tectonics

QuestionAnswer
Scientist who hypothesized the theory of continental drift. Alfred Wegener
The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations Continental Drift
A name given to a large single landmass made up of all the continents. Greek for "all earth" Pangaea
The northern piece of the two land masses that formed after Pangaea broke apart. Laurasia
The southern piece of the two land masses that formed after Pangaea broke apart. Gondwana
The process by which new oceanic lithosphere forms as the magma rises towards the surface and solidifies. Sea-Floor Spreading
Underwater mountain chains that run through the Earth's ocean basins where sea-floor spreading takes place. Mid-ocean ridges
When the Earth's magnetic poles change polarity. Magnetic Reversal
The solid, outer layer of the Earth that is made up of the crust and the upper mantle Lithosphere
The thin and solid outermost layer of the Earth above the mantle Crust
The layer of rock between the Earth's crust and core. Makes up 67% of Eath's mass. Mantle
the central part of the Earth below the mantle Core
The soft layer of the mntle on which the tectonic plates move. Asthenosphere
The strong, lower part of the mantle between the asthenosphere and the outer core Mesosphere
A block of lithosphere that contains crust and the outermost part of the mantle Tectonic Plate
The theory that explains how large pieces of the Earth's outer layer move and change shape Plate Tectonics
The boundary formed by the collision of two plates Convergent Boundary
The boundary between two plates that are moving away from each other Divergent Boundary
The boundary between plates that are sliding past each other horizontally Transform Boundary
Stress that occurs when forces act to squeeze an object Compression
Stress that occurs when forces act to stretch an object Tension
The bending of rock layers due to stress Folding
A break in a body of rock along which one block slides relative to another Fault
The rising of regions of the Earth's crust to higher elevations Uplift
The sinking of regions of the Earth's crust to lower elevations Subsidence
Created by: lenzt
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