Plate tectonics
Continental drift
1 CONTINENTAL DRIFT & PANGAEA In 1912, Alfred Wegener proposed the idea that the continents were once part of a huge land mass, called Pangaea (all lands),
Evidence for Continental Drift Pangaea ___________________ Evidence ___________________ Sea Floor Spreading ____________ Magnetic ________________.
Plate Tectonics. Continental drift – Wegner’s idea that states continents have moved horizontally along Earth’s surface to their present positions.
Pangaea and Continental Drift
Plate Tectonics
