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plate tectonics

Line breaks: plate tec|ton¦ics

Definition of plate tectonics in English:

plural noun

[treated as singular]
A theory explaining the structure of the earth’s crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
Example sentences
  • In the early 1960s, the emergence of the theory of plate tectonics started a revolution in the earth sciences.
  • The theory of plate tectonics holds that the entire crust of the earth is broken into six large pieces and many smaller ones.
  • Scientists were surprised by this finding because andesites on Earth are typically created by processes associated with plate tectonics.

Definition of plate tectonics in:

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