Alfred Wegener proposed the theory of continental drift in 1910, hypothesizing that the continents were once joined together in a supercontinent called Pangaea. Wegener suggested that Earth's centrifugal force caused Pangaea to break apart and drift towards the equator. However, Wegener was unable to adequately explain the forces driving continental drift, and his theory was dismissed by the scientific community who believed the Earth was solid. In the 1960s, Harry Hess proposed seafloor spreading as the mechanism driving continental drift, based on patterns of magnetic rocks on the seafloor.

1. By;
Oira, Rojan Paul D.
Ponce, Charity Hope O.

2. WORLD MAP

6. Alfred Wegener
In 1910, Wegener formed a
hypothesis which stated all the
continents were once joined
together in a giant landmass.
He named this landmass
“PANGAEA”
German geophysicist and
meteorologist

11. Wgener’s mechanism for
continental drift
Earth created a centrifugal force towards the equator
“Pole-fleeing force“- Pangaea originated near the
south pole and that the centrifugal force of the planet
caused the protocontinent to break apart and the
resultant continents to drift towards the equator.

12. Driving the drift
Rotation of the Earth is INSUFFICIENT to move
continents.
WEGENER’S INABILITY to provide an adequate
explanation of the forces responsible for continental
drift and the prevailing belief that the earth was solid
and immovable resulted in the scientific DISMISSAL
OF HIS THEORY.

13. Harry Hess
Seafloor spreading was
proposed as a mechanism to
drive the movement of the
continents on the basis of
symmetrical patterns of
reversed and normal magnetic
rocks on the sea floor