Maud Rise

Maud Rise (66°S 3°E / 66°S 3°ECoordinates: 66°S 3°E / 66°S 3°E) is an oceanic plateau located in the Southern Ocean. Its name was approved by the Advisory Committee for Undersea Features in June 1987.^[1]

Geology

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.^[2]

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.^[2]

See also

• Weddell Polynya

References

Notes

1. "Maud Rise". Geographic Names Information System. United States Geological Survey. Retrieved 2013-08-29.
2. Gohl, Uenzelmann-Neben & Grobys 2011, Timing and extent of Large Igneous Province formation, pp. 384–385

Sources

• Gohl, K.; Uenzelmann-Neben, G.; Grobys, N. (2011). "Growth and dispersal of a southeast African Large Igenous Province" (PDF). South African Journal of Geology. 114 (3-4): 379–386. doi:10.2113/gssajg.114.3-4.379. Retrieved April 2015. Check date values in: |access-date= (help)

 This article incorporates public domain material from the United States Geological Survey document "Maud Rise" (content from the Geographic Names Information System).