Continental Drift.
Continental drift makes reference to the relative movements of continents across the earth's surface.
The theory was put forward in the early 1900's by a meteorologist named Alfred Wegener. Alfred proposed that approximately 200 million years ago the world was one super landmass called Pangaea and one ocean called Panthalassa. 50 million years later, Pangea split into Laurasia and Gondwanaland which was seperated by the tethy's sea. Laursia consisted of North America, Europe and Asia. Gondwanaland comprised of South America, Antarctica, Africa, Australia, Madagascar and India. His theory explains that the movements continued until it resulted in the 7 continents we have today.
EVIDENCES:
Jigsaw fit of the continents
Similar fossils of plants and animals on different continents in different climatic zones.
Rocks on different continents suggest that they were formed in the same era.
CURRENT MOVEMENTS
1. North America is moving away from Europe
2. India moving further north into Asia
The theory was put forward in the early 1900's by a meteorologist named Alfred Wegener. Alfred proposed that approximately 200 million years ago the world was one super landmass called Pangaea and one ocean called Panthalassa. 50 million years later, Pangea split into Laurasia and Gondwanaland which was seperated by the tethy's sea. Laursia consisted of North America, Europe and Asia. Gondwanaland comprised of South America, Antarctica, Africa, Australia, Madagascar and India. His theory explains that the movements continued until it resulted in the 7 continents we have today.
EVIDENCES:
Jigsaw fit of the continents
Similar fossils of plants and animals on different continents in different climatic zones.
Rocks on different continents suggest that they were formed in the same era.
CURRENT MOVEMENTS
1. North America is moving away from Europe
2. India moving further north into Asia
