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Plate Tectonics
The constant destruction and renewal of the surface of a tectonically active Terrestrial Class, usually Gaian Type planet, caused by the motions of the planet's lithosphere. The crust is fractured into large plates, which slowly move (usually about a centimetre a year) relative to each other.
 
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Development Notes
Text by M. Alan Kazlev
Initially published on 19 December 2001.

 
 
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