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Kōrero: Sea floor geology

The legal continental shelf

Image
The legal continental shelf

Under the law of the sea a nation can extend its territorial claim of the ocean floor if the surrounding continental area extends more than 200 nautical miles offshore. The maximum limit of this additional area is 350 nautical miles offshore. In 2005 New Zealand was preparing a submission to extend its legal jurisdiction to the maximum limit, and this diagram illustrates the terms being used in complex legal negotiations.

Te whakamahi i tēnei tūemi

GNS Science

Source: Ray Wood and others, New Zealand’s continental shelf and UNCLOS Article 76. Lower Hutt: Institute of Geological and Nuclear Sciences; Wellington: National Institute of Water and Atmospheric Research, 2003

Permission of GNS Science must be obtained before any use of this image.

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Me pēnei te tohu i te whārang

Keith Lewis, Scott D. Nodder rāua ko Lionel Carter, Sea floor geology – The continental shelf, Te Ara – the Encyclopedia of New Zealand, https://teara.govt.nz/mi/map/5601/the-legal-continental-shelf (accessed 4 June 2026).

He kōrero nā Keith Lewis, Scott D. Nodder rāua ko Lionel Carter, i tāngia i te 2 March 2009.