71°N46°E / 71°N 46°E /71; 46TheBarents Basin orEast Barents Basin is asedimentary basin underlying the eastern half of theBarents Sea. Lying offRussia on thecontinental shelf between theKola Peninsula andNovaya Zemlya, it produces oil and gas.[1]
The Barents Basin is bordered by land and the Timan-Pechora Basin to the south, the Murmansk Rise and Murmansk Plateau to the west, the Admiralty High and the island of Novaya Zemlya to the east, and rise ofFranz Josef Land to the north. The Barents Basin is subdivided into the South Barents Basin (south of the Ludlov Saddle), the North Barents Basin, and the North Novaya Zemlya Basin. The latter two are separated by a major NW–SE fault.[2]
Beginning in the latePalaeozoic and continuing through to the earlyCretaceous sediments were deposited on the continental shelf of the supercontinentPangaea, these underlie the current Barents Basin which was created during the break-up ofPangaea. Beginning in theCretaceous arift zone opened between theBaltic Plate and theSiberian Plate, parallel to and west of the oldUral Mountainssuture zone, represented here by Novaya Zemlya.[2]
The largest natural gas fields in the basin are theShtokman field (Shtokmanovskoye or Stokmanovskaya) and the Ludlovskoye (Ludlovskaya) field.[2] The Shtokman field in the northwestern South Barents Basin was discovered in 1988[3] and has gas reserves of an estimated 2500 billion cubic meters.[2] The Ludlovskoye field is on the Ludlov Saddle and was discovered in 1990.[3] The Ledovoye field was discovered in 1991 and lies between the Shtokman field and the Ludlovskoye field.[3]
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