The Kerguelen Plateau is an underwater volcanic ridge—the largest in the Indian Ocean, and one of the largest in the world. It lies about 3000 km to the southwest of Australia and is nearly three times the size of Japan. It extends for more than 2200 km in a northwest-southeast direction and lies in deep water. There is a small portion of the plateau that breaks sea level, and is known as the Kerguelen Islands. For alternate uses of the term, see Plateau (disambiguation). ... The Indian Ocean is the third-largest body of water in the world, covering about 20% of the Earths water surface. ... Australia, officially the Commonwealth of Australia, is the sixth-largest country in the world, the only country to occupy an entire continent, and the largest in the region of Australasia/Oceania. ... Official language Japanese Capital Tokyo Largest City Tokyo Emperor Akihito Prime Minister Junichiro Koizumi Area - Total - % water Ranked 60th 377,835 km² 0. ... For considerations of sea level change, in particular rise associated with possible global warming, see sea level rise. ... The Kerguelen Archipelago is in the southern Indian Ocean at 49°20 S, 70°20 E. The main island Kerguelen, originally called Desolation Island, is 6,675 km2 and it is surrounded by another 300 smaller outcrops, forming an archipelago of 7,215 km². The climate is cold, very windy...
Categories: Large igneous provinces | Volcanoes of France
The KerguelenPlateau is an underwater volcanic large igneous province (LIP) in the Indian Ocean.
There is a small portion of the plateau that breaks sea level, forming the Kerguelen Islands, Heard Island and the McDonald Islands.
Symmetrically located across the Indian Ocean ridge and due west of Australia, is the Broken Ridge underwater volcanic plateau which was at one time contiguous with the Kerguelin Plateau prior to rifting by the mid-ocean ridge.
The KerguelenPlateau is an elevated region of sea floor in the southern Indian Ocean approximately equidistant from Africa and Australia.
The immense size of the plateau led many geoscientists to conclude that it might be a fragment of Antarctica (Anonymous, 1988), separated and repositioned by the movements of the tectonic plates in the Indian Ocean.
The Kerguelen mantle plume is considered responsible for extensive hotspot volcanism in the Indian Ocean basin (Figure 2), including the Ninetyeast Ridge, Broken Ridge, and the KerguelenPlateau (Hassler and Shimizu, 1998).
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