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Lomonosov Ridge |
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Lomonosov ridge [lō·mō′nȯ‚sȯf ‚rij]
(geography) An undersea ridge which subdivides the Arctic Basin, extending from Ellesmere Land to the New Siberian Islands. Lomonosov Ridge an underwater ridge in the Arctic Ocean. It extends for about 1,800 km from the Novosibirskie Islands across the central part of the ocean to Ellesmere Island in the Canadian arctic archipelago. It is 60-200 km wide and rises 3,300-3,700 m from the ocean floor. At its greatest height the ridge lies at a depth of 954 m. The relatively steep slopes are dissected by canyons and covered by a layer of sandy silt. It was discovered in 1948 by Soviet polar expeditions and named in honor of M. V. Lomonosov. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Of primary interest is the Lomonosov Ridge, an undersea mountain range thought to extend approximately 2,000 kilometres, from a point north of Ellesmere Island/Greenland, across the Arctic Ocean to the vicinity of the Siberian coast. The international collaborative research team, led by Dr Catherine Stickley and Professor Nalan Koc of the University of Tromso and Norwegian Polar Insitute, analyzed oceanic sediment cores collected from the Lomonosov ridge in the central Arctic by Integrated Ocean Drilling Program Expedition 302 ("ACEX"). EARLY EOCENE ARCTIC WARM ENVIRONMENT Like other areas of the world's oceans, the Early Eocene Arctic Ocean was warm and the Lomonosov Ridge was a shallow-water environment. |
Lomonosov Ridge |
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