Ch. 4-2: Restless Continents Notes• Wegner believed that the continents were
once all connected. His evidence for his hypothesis was fossils.
• He named the single landmass “Pangaea.”
• Magnetic minerals are part of molten rock at mid-ocean ridges that provide evidence for magnetic reversals.
S
SN
N
North Pole North Pole
South Pole South Pole
Normal Polarity Reverse Polarity
Ch. 4-2: Restless Continents Notes
• Wegner’s hypothesis of continental drift states that all the continents were once connected and eventually separated. He named the single landmass “Pangaea.”
Pangaea
Laurasia
Gondwana
North America
Eurasia
Africa
South America
India
Antarctic Australia
Europe
Asia
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