Kōrero: Sea floor geology

Colville and Kermadec ridges

The deep, rough seabed between the Colville and Kermadec ridges (north of New Zealand) is known as the Havre Trough. Here the seabed is slowly being pulled apart – the ridges are moving away from each other. The older Colville Ridge has extinct volcanoes, while the younger Kermadec Ridge has many active volcanoes. This video clip shows the shape of several submarine volcanoes, derived from detailed bathymetric surveys.

Te whakamahi i tēnei tūemi

NOAA Ocean Exploration Progamme, New Zealand American Ring of Fire Expedition

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Te tuhi tohutoro mō tēnei whārangi:

Keith Lewis, Scott D. Nodder and Lionel Carter, 'Sea floor geology - Active plate boundaries', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/video/5597/colville-and-kermadec-ridges (accessed 7 August 2020)

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