Plate Tectonics Shake, Rattle, & Roll!
Plate Tectonics a scientific theory that describes the large scale motions of the Earth's plates.
Layers of the Earth
Plate Movement It is believed that tectonic plates are moved by several different forces: Rotation of the earth Tidal forces of sun & moon Gravitational pull Convection cell
Alfred Lothar Wegener Developed the theory of Pangea & Continental Drift.
Pangea
The Case for Pangea
Continental Drift Direction of plate drift
Types of Plate Motion Convergent Divergent Transform Tectonic Plate Motion http://www.passmyexams.co.uk Under the Earth & Beyond – Plate Tectonic Motion
Convergent Boundaries- Where two tectonic plates come together Divergent Boundaries- where two tectonic plates pull apart Transform Boundaries- where two tectonic plates grind past each other.
Transform Boundary Arial photo of the San Andreas Fault Border of the Pacific & North American plate, 810 miles long. Arial photo of the San Andreas Fault