The Antarctic Plate is a tectonic plate containing the continent of Antarctica and extending outward under the surrounding oceans. The Antarctic Plate is bounded almost entirely by extensional mid-ocean ridge systems. The adjoining plates are the Nazca Plate, the South American Plate, the African Plate, the Indo-Australian Plate, the Pacific Plate, and, across a transform boundary, the Scotia Plate.
The Antarctic plate is roughly 60,900,000 square kilometers. It is the fifth biggest plate in the world.
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