Lomonosov Ridge


Lomonosov Ridge

The Lomonosov Ridge ( _ru. Хребет Ломоносова; tr.:"Khrebet Lomonosova"; _fr. Dorsale de Lomonossov) is an unusual underwater ridge of continental crust in the Arctic Ocean. It spans 1800 km from the New Siberian Islands over the central part of the ocean to Ellesmere Island of the Canadian Arctic islands.CBC News. [http://www.cbc.ca/world/story/2007/07/25/russia-arctic.html Broken ship halts Russian expedition to claim Arctic seabed] . July 25, 2007. Retrieved July 25, 2007.] The width of the Lomonosov Ridge varies from 60 to 200 km. It rises 3,300 to 3,700 m above the seabed. The minimum depth of the ocean above the ridge is 954 m. Slopes of the ridge are relatively steep, broken up by canyons, and covered with layers of silt.

The Lomonosov Ridge was first discovered by the Soviet high-latitude expeditions in 1948 and is named after Mikhail Lomonosov. The name was approved by the Sub-Committee on Undersea Feature Names (SCUFN). cite web |url=http://www.gebco.net/about_us/meetings_and_minutes/documents/gebco_scufn_15_report.pdf |title=IHO-IOC GEBCO Gazetteer |accessdate=2008-05-24 |publisher=International Hydrographic Organization/Intergovernmental Oceanographic Commission |date=September 2007 ]

In the 2000s, the geological structure of the ridge attracted international attention due to a December 20 2001 official submission by the Russian Federation to the UN Commission on the Limits of the Continental Shelf in accordance with the United Nations Convention on the Law of the Sea (article 76, paragraph 8). The document proposed establishing new outer limits for the Russian continental shelf, beyond the previous 200 mile zone, but within the Russian Arctic sector. [http://www.un.org/depts/los/clcs_new/submissions_files/submission_rus.htm Outer limits of the continental shelf beyond 200 nautical miles from the baselines: Submissions to the Commission: Submission by the Russian Federation] CLCS. United Nations] The territory claimed by Russia in the submission is a large portion of the Arctic, including the North Pole. [ [http://www.un.org/depts/los/clcs_new/submissions_files/rus01/RUS_CLCS_01_2001_LOS_2.jpgArea of the continental shelf of the Russian Federation in the Arctic Ocean beyond 200-nautical-mile zone] - borders of the 200 mile zone are marked in red, territory claimed by Russia is shaded] One of the arguments was a statement that the underwater Lomonosov Ridge and Mendeleev Ridge are extensions of the Eurasian continent. In 2002 the UN Commission neither rejected nor accepted the Russian proposal, recommending additional research.

Danish scientists hope to prove that the ridge is an extension of Greenland which would make Denmark another claimant to the area. [ [http://news.bbc.co.uk/2/hi/europe/3716178.stm Denmark hopes to claim North Pole] BBC News, 5 October, 2004. Accessed 10 November 2006.] Canada, another claimant, asserts that the ridge is an extension of its continental shelf. In April 2007, Canadian and Russian scientists were sent to map the ridge as a possible precedent for determining sovereignty over the area. In late June 2007, Russian scientists claimed that the ridge is an extension of Russia's territory. [ [http://www.guardian.co.uk/russia/article/0,,2113289,00.html Kremlin lays claim to huge chunk of oil-rich North Pole] The Guardian, 28 June, 2007. Accessed 3 July, 2007.]

Arktika 2007 Expedition

In late July 2007, a Russian expedition sent an icebreaker and two mini-submarines, Mir-I and Mir-II, to explore the region. Russian scientists dove 4261 m (14,000 feet) below the surface and on Aug 2 planted a rust-proof titanium metal Russian flag as a symbolic gesture of their claim to the region. [ [http://news.bbc.co.uk/2/hi/europe/6927395.stm BBC News: Russia plants flag under N Pole] ] In April 2007, Canada and Denmark, which both claimed part of the ridge, were also mapping it under the polar ice, Canada's CBC reported. [ [http://www.sikunews.com/art.html?catid=2&artid=2962/ "Mapping continues along the Lomonosov Ridge" – SikuNews, 17 April 2007] .Retrieved on 2007-08-07]

As a follow-up in mid-September 2007, Russia's Natural Resources Ministry issued a statement:::"Preliminary results of an analysis of the earth crust model examined by the Arctic-2007 expedition, obtained on September 20, have confirmed that the crust structure of the Lomonosov Ridge corresponds to the world analogues of the continental crust, and it is therefore part of the Russian Federation's adjacent continental shelf." cite news |title=Lomonosov Ridge, Mendeleyev elevation part of Russia's shelf - report |url=http://www.interfax.ru/e/B/politics/28.html?id_issue=11861523 |publisher=Interfax Moscow |date=2007-09-20 |accessdate=2007-09-21]

ee also

*Russia's 2001 continental shelf claim

References


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