9.1 Continental Drift I. Idea Before Its Time

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Presentation transcript:

9.1 Continental Drift I. Idea Before Its Time A) Wegener’s continental drift hypothesis, 1) continents had once been joined to form a single supercontinent, Pangea

Breakup of Pangaea

9.1 Continental Drift II. Evidence • B) Matching Fossils several fossil organisms found on different landmasses. • A) The Continental Puzzle

Matching Mountain Ranges • C) Rock Types and Structures- similarities 1000 of miles apart

Glacier Evidence • D) Glacier evidence- Glacial deposits near equator

9.1 Continental Drift III. Rejecting the Hypothesis  A) New Theory Emerges • 1) Wegener could not provide an explanation of exactly what made the continents move.