- The term plate tectonics was first used by Tuzo Wilson.
- The Plate Tectonics theory was first published by W.J Morgan in 1962.
- It deals with dynamic movement of earth’s crust by endogenic forces.
- The theory is based on scientific mapping of ocean floor carried out in 1960 and it is also influenced by Arthur Holmes convection current hypothesis, and the concept of seafloor spreading’ advocated by Harry Hess.
- The theory rejected the Continental Drift Theory of Wegener that postulated that the SIAL floats over the SIMA. Instead, it said that individual blocks called plates float over the asthenosphere.