PangaeaPangaea

The ancient (225 million years ago) The ancient (225 million years ago) supercontinent that split apart into the supercontinent that split apart into the continents we know today.continents we know today.

Continental DriftContinental Drift

The theory used to explain the movement of The theory used to explain the movement of the continents on earth. It was first proposed the continents on earth. It was first proposed

by Alfred Wegner less than 100 years ago by Alfred Wegner less than 100 years ago (1912)(1912)

Plate BoundariesPlate Boundaries

The term “plate boundary” refers to the edges The term “plate boundary” refers to the edges where the different plates on earth are where the different plates on earth are touching. touching.

Each of the plates have a Each of the plates have a namename..

Types of Plate BoundariesTypes of Plate Boundaries

Convergent:Convergent:areas of areas of plates that are moving toward each otherplates that are moving toward each other

Divergent – Divergent – areas of areas of plates that are moving away from each otherplates that are moving away from each other

Transform – Transform – areas of areas of plates that are sliding past each otherplates that are sliding past each other

Convergent BoundariesConvergent BoundariesThere are several types of convergent boundaries:There are several types of convergent boundaries:

Continental vs. Oceanic Continental vs. Oceanic results in drastic results in drastic subductionsubduction and volcanoes and volcanoes

Oceanic vs. Oceanic Oceanic vs. Oceanic results in deep sea-floor trenchesresults in deep sea-floor trenches

Continental vs. ContinentalContinental vs. Continental results in huge mountain-buildingresults in huge mountain-building