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en.wikipedia.org/wiki/Plate_tectonics

Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the ...

csmres.jmu.edu/geollab/vageol/vahist/plates.html

Sep 13, 2000 ... Plate tectonics is the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around ...

www.livescience.com/37706-what-is-plate-tectonics.html

Mar 21, 2016 ... Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle.

www.britannica.com/science/plate-tectonics

plate tectonics: Theory dealing with the dynamics of Earth 's outer shell, the lithosphere, that revolutionized Earth sciences by providing a uniform context for  ...

www.ck12.org/earth-science/theory-of-plate-tectonics/lesson/Theory-of-Plate-Tectonics-MS-ES

Jan 4, 2013 ... Like any great theory, plate tectonics makes a tremendous amount of ... The theory of plate tectonics is what brings together continental drift and ...

thebritishgeographer.weebly.com/plate-tectonic-theory.html

Plate tectonics is the theory that explains the global distribution of geological phenomena. Principally it refers to the movement and interaction of the earth's ...

www.merriam-webster.com/dictionary/plate%20tectonics

Define plate tectonics: a theory in geology: the lithosphere of the earth is divided into a small number of plates which float on and travel…

scecinfo.usc.edu/education/k12/learn/plate2.htm

Aug 13, 1998 ... History of plate tectonics. Plate tectonic theory had its beginnings in 1915 when Alfred Wegener proposed his theory of "continental drift.

www.pbs.org/wgbh/aso/tryit/tectonics/intro.html

Intro to Plate Tectonic Theory animation of breakup of Pangaea Plate tectonics is the theory that Earth's outer layer is made up of plates, which have moved ...