Plate tectonics explains the origin and distribution of:
A map of the tectonic plates can be found at:
Some sources continue to show the Indian and Australian plates featured here as a single Indo-Australian plate.)
The fact that large portions of the ocean floor, as well as continental expanses, seem to be "solid plates" has tended to discredit the term - continental drift - and to establish the alternative term - plate tectonics.
Great animations of continental drift due to plate tectonics on: .
If you know why something happens it will be easier to predict future plate tectonic movement by looking for the signs of an approaching earthquake or volcanic eruption and so minimizing the danger by taking the actions necessary because so far it is impossible to stop them and if it were the earth would not be able to release its underground pressure and shake itself...
Plate Tectonics - University of Waikato
1963 Two British geoscientists, Fred Vine and Drummond Matthews, propose a hypothesis that elegantly explained magnetic reversal stripes on the ocean floor. They suggested that the new oceanic crust, formed by the solidification of basalt magma extruded at mid-ocean ridges, acquired its magnetisation in the same orientation as the prevailing global magnetic field. These palaeomagnetic stripes provide a chronological record of the opening of ocean basins. By linking these observations to Hess's sea-floor spreading model, they lay the foundation for modern plate tectonics.
Plate Tectonics in action / expanding earth hypothesis …
1960s-present day. There was an increasingly wide acceptance of the theory of plate tectonics. A concerted research effort was made into gaining a better understanding of the boundaries and structure of Earth's major lithospheric plates, and the identification of numerous minor plates.