Recent Examples of plate tectonics from the Web
The theory of plate tectonics holds that the Earth has more than a dozen plates that move, including the Pacific plate south of Alaska, which is dipping under the North American plate at a rate of a couple of inches a year.
But Pangea and the related concepts of plate tectonics explain how a seafloor near Brazil ended up as a clifftop in Newfoundland.
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First Known Use of plate tectonics
PLATE TECTONICS Defined for English Language Learners
Definition of plate tectonics for English Language Learners
geology : a scientific theory that the Earth's surface is made of very large sections that move very slowly; also : the movements of the large sections that form the Earth's surface
Learn More about plate tectonics
Britannica.com: Encyclopedia article about plate tectonics
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