Kōrero: Sea floor geology

Basins, troughs and trenches

Basins, troughs and trenches

The topography of New Zealand’s sea floor is varied, with large areas of both shallow and deep water. Regions of deeper water are referred to as basins, trenches or troughs (indicated in blue). Basins and troughs are large areas of relatively uniform depth, much like plains on land, while trenches have much steeper sides, more like river gorges. The deepest waters occur in trenches, which also mark the boundaries of continental plates.

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Te Ara - The Encyclopedia of New Zealand

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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

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Keith Lewis, Scott D. Nodder and Lionel Carter, 'Sea floor geology - Abysses', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/map/5607/basins-troughs-and-trenches (accessed 3 December 2021)

He kōrero nā Keith Lewis, Scott D. Nodder and Lionel Carter, i tāngia i te 12 Jun 2006