Maud Rise

Coordinates: 66°S 3°E / 66°S 3°E / -66; 3
From Wikipedia, the free encyclopedia

Maud Rise (66°S 3°E / 66°S 3°E / -66; 3) is an oceanic plateau, which rises, at its shallowest, to depths of about a 1,000 meters.[1] It is located in the Weddell Sea in the Southern Ocean. Its name was approved by the Advisory Committee for Undersea Features in June 1987.[2]

Geology[edit]

Maud Rise formed part of the south-eastern African large igneous province (LIP) which developed south of Africa 100 to 94 million years ago (Ma). This LIP first formed 140-122 Ma east of South Africa where the Mozambique Ridge is now located. There it reached a maximum extent around 120 Ma when the African-Antarctic spreading zone was located below its eastern flank. Astrid Ridge was possibly part of this LIP as well.[3]

The LIP formation then continued intermittently until it finally reached its maximum extent south of South Africa 100 Ma. This volcanism ended 94 Ma after which sea-floor spreading divided the LIP into the Agulhas Plateau (south of South Africa), Northeast Georgia Rise (near South Georgia Island off South America), and Maud Rise.[3]

See also[edit]

References[edit]

Notes[edit]

  1. ^ "GEBCO Gridded Bathymetry Data".
  2. ^ "Maud Rise". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2013-08-29.
  3. ^ a b Gohl, Uenzelmann-Neben & Grobys 2011, Timing and extent of Large Igneous Province formation, pp. 384–385

Sources[edit]

Public Domain This article incorporates public domain material from "Maud Rise". Geographic Names Information System. United States Geological Survey.