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Restless Continents

Chapter 7 Section 2. Restless Continents. Wegener’s hypothesis that states that the continents once formed a single landmass, broke up and drifted to their present locations Pangaea Evidence=fossils . Continental drift.

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Restless Continents

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  1. Chapter 7 Section 2 Restless Continents

  2. Wegener’s hypothesis that states that the continents once formed a single landmass, broke up and drifted to their present locations Pangaea Evidence=fossils Continental drift

  3. The process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies This occurs at mid-ocean ridges Sea-floor spreading

  4. The change in the polarity of Earth’s magnetic field Magnetic minerals on the ocean floor= most important evidence of sea-floor spreading Magnetic reversal

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