Norfolk Ridge

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Topographic map of Zealandia showing the Norfolk Ridge Zealandia, topographic map.jpg
Topographic map of Zealandia showing the Norfolk Ridge

The Norfolk Ridge is a long submarine ridge running between New Caledonia and New Zealand, about 1300 km off the east-coast of Australia. [1]

It is part of a complex region of ridges between the crust of the Pacific Basin and the continental crust of Australia. Little is known about the Norfolk Ridge; however, it generally lies about 2000 m below sea level and consists of Late Cretaceous continental crust. It is part of Zealandia, a submerged continent that sank 60-85 million years ago. [2] [3] [4]

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References

  1. Eade, James V. (1988), Nairn, Alan E. M.; Stehli, Francis G.; Uyeda, Seiya (eds.), "The Norfolk Ridge System and Its Margins", The Ocean Basins and Margins: Volume 7B: The Pacific Ocean, Boston, MA: Springer US, pp. 303–324, doi:10.1007/978-1-4615-8041-6_7, ISBN   978-1-4615-8041-6 , retrieved 15 December 2020
  2. Patriat, M.; Collot, J.; Roest, W. R.; Sutherland, R.; Etienne, S.; Bordenave, A.; Marcaillou, B.; Philippe, S.; Juan, C.; Barker, D. H. N.; Stratford, W. R. (1 December 2019). "Stratigraphy and Tectonics of the Continental Norfolk Ridge, SW Pacific Ocean". AGU Fall Meeting Abstracts. 23. Bibcode:2019AGUFM.T23G0514P.
  3. Mortimer, N.; Patriat, M.; Gans, P. B.; Agranier, A.; Chazot, G.; Collot, J.; Crundwell, M. P.; Durance, P. M. J.; Campbell, H. J.; Etienne, S. (3 September 2020). "The Norfolk Ridge seamounts: Eocene–Miocene volcanoes near Zealandia's rifted continental margin". Australian Journal of Earth Sciences. 68 (3): 368–380. doi:10.1080/08120099.2020.1805007. ISSN   0812-0099. S2CID   225310839.
  4. Nairn, Alan E. M.; Stehli, Francis G.; Uyeda, Seiya (17 April 2013). The Ocean Basins and Margins: The Pacific Ocean. Springer Science & Business Media. ISBN   978-1-4615-8041-6.