CONTINENTAL DRIFT THEORY

• This hypothesis suggested that continents are in motion on the surface of Earth

  Continental Drift Hypothesis
• Evidences that continents move:

  • Climate clues
  • Fossil Clues
  • Rock Clues
• It is the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge.

  Seafloor spreading
• This lava is formed when lava erupts into water then cools rapidly and forms rounded structure

  Pillow lava
• These are lava that cools down and crystalizes on the seafloor

  Basalt
• It is a state in which magnetized objects, such as compass needles, will orient themselves to point north

  Normal polarity
• It occurs when the magnetic field reverses direction

  Magnetic reversal
• It is a state in which magnetized objects would reverse direction and orient themselves to point south.

  Reversal polarity