Magellan Rise (ocean plateau) (original) (raw)
Magellan Rise is an oceanic plateau in the Pacific Ocean, which covers a surface area of 500,000 square kilometres (190,000 sq mi). There is another "Magellan Rise" west from the Marshall Islands as well. The Magellan Rise has been called a large igneous province by Coffin and Endholm 2001 and was emplaced 145 million or 135-128 million years ago, possibly as a consequence of intense volcanism at a former triple junction. Alternatively, the Rise was formed by a mantle plume linked to the deep "JASON superplume". Candidate mantle plumes are the Easter hotspot and the Foundation hotspot.
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| dbo:abstract | Magellan Rise is an oceanic plateau in the Pacific Ocean, which covers a surface area of 500,000 square kilometres (190,000 sq mi). There is another "Magellan Rise" west from the Marshall Islands as well. The Magellan Rise has been called a large igneous province by Coffin and Endholm 2001 and was emplaced 145 million or 135-128 million years ago, possibly as a consequence of intense volcanism at a former triple junction. Alternatively, the Rise was formed by a mantle plume linked to the deep "JASON superplume". Candidate mantle plumes are the Easter hotspot and the Foundation hotspot. The volume of rocks in the Magellan Rise is about 1,800,000 cubic kilometres (430,000 cu mi)-19,740,000 cubic kilometres (4,740,000 cu mi). It apparently developed first on the Phoenix Plate before being transferred onto the Pacific Plate 125 million years ago. The Magellan Rise never rose to shallow depths at least since the Cretaceous, and the Rise is covered by sediments of Tithonian/Berriasian to Quaternary age. (en) |
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| dbo:wikiPageWikiLink | dbc:Plateaus_of_the_Pacific_Ocean dbr:Quaternary dbc:Underwater_ridges_of_the_Pacific_Ocean dbr:Easter_hotspot dbr:Cretaceous dbr:Ontong_Java_Plateau dbr:Tithonian dbr:Berriasian dbr:Mantle_plume dbr:Oceanic_plateau dbr:Large_igneous_province dbr:Phoenix_Plate dbr:Pacific_Ocean dbr:Pacific_Plate dbr:Marshall_Islands dbr:Mid-Pacific_Mountains dbr:Shatsky_Rise dbr:Manihiki_Plateau dbr:Triple_junction dbr:Sediment dbr:Foundation_hotspot dbr:Hess_Rise |
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| rdfs:comment | Magellan Rise is an oceanic plateau in the Pacific Ocean, which covers a surface area of 500,000 square kilometres (190,000 sq mi). There is another "Magellan Rise" west from the Marshall Islands as well. The Magellan Rise has been called a large igneous province by Coffin and Endholm 2001 and was emplaced 145 million or 135-128 million years ago, possibly as a consequence of intense volcanism at a former triple junction. Alternatively, the Rise was formed by a mantle plume linked to the deep "JASON superplume". Candidate mantle plumes are the Easter hotspot and the Foundation hotspot. (en) |
| rdfs:label | Magellan Rise (ocean plateau) (en) |
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| geo:long | -176.824997 (xsd:float) |
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