Antonio Snider Pellegrini
The man to create the explanations of why the continents look like they can fit together
In 1985 he published a book that describes rapid catastrophic split of continents during Noah's Flood
Alfred Wegener
The man that proposed the idea that we call "continental drift"
Continental drift
A slow/gradual break up of a single super continent called Pangaea
Wegener's 6 Lines of Evidence
1) Fit of the Continents
2) Matching Geologic Units Across the Atlantic
3) Match in Mt. Chains
4) Fossil Distributions
5) Distribution of Living Organisms
6) Ancient Climates
Why didn't anyone believe Wegener?
No one believed him because he had no mechanism to explain how the continents would be able to
move.
2 Big Discoveries About the Sea Floor
1) Mid-Ocean Ridge
2) Dredging of Ocean Floor Showed 2 Patterns in sediments
Mid-Ocean Ridge
The world's largest mountain range that you will never see. It is 1000's of k. long, 2 k. tall, and 100's of
km. across
2 Patterns in Sediments Formed in the Ocean Floor Because of Dredging
1) Sediments thin at the Mid-Ocean Ridge
2) Sediments older further from Mid-Ocean Ridge
What do we say the ocean crust moves like
A conveyor belt
3 Components of Plate Tectonics
Continental Drift
Seafloor Spreading
Subduction