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The Antarctic plate is a tectonic plate containing the continent of Antarctica, the Kerguelen Plateau, and some remote islands in the Southern Ocean and other surrounding oceans. After breakup from Gondwana (the southern part of the supercontinent Pangea ), the Antarctic plate began moving the continent of Antarctica south to its present ...
Stretching for 4,300 km (2,700 mi) north-west from the Eltanin fault system which intersects the Pacific-Antarctic Ridge to the Osbourn Seamount at Tonga and Kermadec Junction [9] is a long line of seamounts called the Louisville Ridge – the longest such chain in the Pacific [10] – thought to have formed from the Pacific Plate sliding over ...
Map showing Earth's principal tectonic plates and their boundaries in detail. These plates comprise the bulk of the continents and the Pacific Ocean.For purposes of this list, a major plate is any plate with an area greater than 20 million km 2 (7.7 million sq mi)
The Antarctic–Phoenix Ridge, also called the Phoenix Ridge, is an extinct mid-ocean ridge that consisted of three spreading ridge segments between the Antarctic Peninsula and the Scotia Sea. It initiated during the Late Cretaceous – Early Tertiary when the Phoenix plate had divergent boundaries with the Bellingshausen and Pacific plates.
The Emerald Fracture Zone is the westernmost portion of the Pacific–Antarctic Ridge and is a young leaky transform fault zone, no older than 2.197-2.229 Ma. This zone was formed during a change in the Pacific–Antarctic plate boundary between 3.4 and 3.86 Ma [8] during a
A map of the Antarctic region, including the Antarctic Convergence and the 60th parallel south The Antarctic Plate. The Antarctic (/ æ n ˈ t ɑːr t ɪ k / or / æ n ˈ t ɑːr k t ɪ k /, American English also / æ n t ˈ ɑːr t ɪ k / or / æ n t ˈ ɑːr k t ɪ k /; commonly / æ ˈ n ɑːr t ɪ k /) [Note 1] is a polar region around Earth's South Pole, opposite the Arctic region around ...
Antarctica along with its outlying islands have no permanent population. All land claims south of 60°S latitude are held in abeyance by the Antarctic Treaty System. Australia's Heard Island and McDonald Islands (an external territory) and the French Kerguelen Islands are located on the Kerguelen Plateau, on the Antarctic continental plate ...
The Rodrigues triple junction viewed from south. Note the "wake" of the eastward propagating triple junction. The Rodrigues triple junction (RTJ), also known as the central Indian [Ocean] triple junction (CITJ) is a geologic triple junction in the southern Indian Ocean where three tectonic plates meet: the African plate, the Indo-Australian plate, and the Antarctic plate.