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RTaccommodation zones
 accreting plate boundary
 accretionary wedges
 active margins
 Adriatic Plate
 African Plate
 Anatolian Plate
 Antarctic Plate
 apparent polar wandering
 Arabian Plate
 aseismic margins
 asthenosphere
 Australian Plate
 Australian-Antarctic discor
SNUsed for global tectonics based on an Earth model characterized by a small number of large, broad, thick plates. Before 1976, articles discussing plate tectonics were included under tectonophysics. Used for extremely large-scale events, usually affecting