what is plate tectonics?
plate tectonics - the branch of geology studying the folding and faulting of the earth's crust. plate tectonic theory, tectonics. geomorphology, morphology - the branch of geology that studies the characteristics and configuration and evolution of rocks and land forms.
plate tectonics. Plate Tectonics is the theory supported by a wide range of evidence that considers the earth's crust and upper mantle to be composed of several large, thin, relatively rigid plates that move relative to one another. Slip on faults that define the plate boundaries commonly results in earthquakes.