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Plate tectonics
Plate tectonics

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5.2 Forces acting upon lithospheric plates

Figure 28 provides a very simplified overview of the forces that are thought to affect the movement of lithospheric plates. The relative contribution of these forces to plate motion needs to be established before their roles can be explored.

Figure 28
Figure 28 Forces acting upon a plate. F denotes a driving force, whereas R denotes a retarding force. See text for explanation. (Bott, 1982)